From 56473930cd9eb94ddfc8fb98919ab2a5e4bcb63f Mon Sep 17 00:00:00 2001 From: Ludovic Dubost Date: Sat, 27 Jun 2020 14:40:15 +0200 Subject: [PATCH 1/8] Adding mathjax svg rendering in code pad --- bower.json | 3 ++- www/common/diffMarked.js | 8 +++++++- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/bower.json b/bower.json index 9fd787c20..bd9cebdd6 100644 --- a/bower.json +++ b/bower.json @@ -49,7 +49,8 @@ "saferphore": "^0.0.1", "jszip": "Stuk/jszip#^3.1.5", "requirejs-plugins": "^1.0.3", - "dragula.js": "3.7.2" + "dragula.js": "3.7.2", + "MathJax": "3.0.5" }, "resolutions": { "bootstrap": "^v4.0.0", diff --git a/www/common/diffMarked.js b/www/common/diffMarked.js index 48f800075..86f99aa42 100644 --- a/www/common/diffMarked.js +++ b/www/common/diffMarked.js @@ -2,6 +2,7 @@ define([ 'jquery', '/api/config', '/bower_components/marked/marked.min.js', + '/bower_components/MathJax/es5/tex-svg.js', '/common/common-hash.js', '/common/common-util.js', '/common/hyperscript.js', @@ -12,7 +13,7 @@ define([ '/bower_components/diff-dom/diffDOM.js', '/bower_components/tweetnacl/nacl-fast.min.js', 'css!/common/highlight/styles/github.css' -],function ($, ApiConfig, Marked, Hash, Util, h, MT, MediaTag, Highlight, Messages) { +],function ($, ApiConfig, Marked, MathJax, Hash, Util, h, MT, MediaTag, Highlight, Messages) { var DiffMd = {}; var DiffDOM = window.diffDOM; @@ -23,6 +24,8 @@ define([ init: function () {} }; + var MathJax = window.MathJax; + var mermaidThemeCSS = //".node rect { fill: #DDD; stroke: #AAA; } " + "rect.task, rect.task0, rect.task2 { stroke-width: 1 !important; rx: 0 !important; } " + "g.grid g.tick line { opacity: 0.25; }" + @@ -95,6 +98,9 @@ define([ renderer.code = function (code, language) { if (language === 'mermaid' && code.match(/^(graph|pie|gantt|sequenceDiagram|classDiagram|gitGraph)/)) { return '
'+Util.fixHTML(code)+'
'; + } else if (language === 'mathjax') { + var svg = MathJax.tex2svg(code, {display: true}) + return '
'+ svg.innerHTML.replace(/xlink:href/g, "href") +'
'; } else { return defaultCode.apply(renderer, arguments); } From 592b32ed23a9fdb8ca76f961637aa96a5702bd70 Mon Sep 17 00:00:00 2001 From: Ludovic Dubost Date: Mon, 29 Jun 2020 09:54:20 +0200 Subject: [PATCH 2/8] Added support for markmap - adding mindmaps in code pad --- .../markmap/markmap-lib.transform.bundle.js | 5689 +++++ www/code/markmap/markmap-lib.view.bundle.js | 19876 ++++++++++++++++ www/common/diffMarked.js | 142 +- 3 files changed, 25703 insertions(+), 4 deletions(-) create mode 100644 www/code/markmap/markmap-lib.transform.bundle.js create mode 100644 www/code/markmap/markmap-lib.view.bundle.js diff --git a/www/code/markmap/markmap-lib.transform.bundle.js b/www/code/markmap/markmap-lib.transform.bundle.js new file mode 100644 index 000000000..ecfb9aee2 --- /dev/null +++ b/www/code/markmap/markmap-lib.transform.bundle.js @@ -0,0 +1,5689 @@ +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : + typeof define === 'function' && define.amd ? define(factory) : + (global = global || self, global.transform = factory()); +}(this, (function () { 'use strict'; + + function unwrapExports (x) { + return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x; + } + + function createCommonjsModule(fn, basedir, module) { + return module = { + path: basedir, + exports: {}, + require: function (path, base) { + return commonjsRequire(path, (base === undefined || base === null) ? module.path : base); + } + }, fn(module, module.exports), module.exports; + } + + function commonjsRequire () { + throw new Error('Dynamic requires are not currently supported by @rollup/plugin-commonjs'); + } + + var textarea; + + function decodeEntity(name) { + textarea = textarea || document.createElement('textarea'); + textarea.innerHTML = '&' + name + ';'; + return textarea.value; + } + + /** + * Utility functions + */ + + function typeOf(obj) { + return Object.prototype.toString.call(obj); + } + + function isString(obj) { + return typeOf(obj) === '[object String]'; + } + + var hasOwn = Object.prototype.hasOwnProperty; + + function has(object, key) { + return object + ? hasOwn.call(object, key) + : false; + } + + // Extend objects + // + function assign(obj /*from1, from2, from3, ...*/) { + var sources = [].slice.call(arguments, 1); + + sources.forEach(function (source) { + if (!source) { return; } + + if (typeof source !== 'object') { + throw new TypeError(source + 'must be object'); + } + + Object.keys(source).forEach(function (key) { + obj[key] = source[key]; + }); + }); + + return obj; + } + + //////////////////////////////////////////////////////////////////////////////// + + var UNESCAPE_MD_RE = /\\([\\!"#$%&'()*+,.\/:;<=>?@[\]^_`{|}~-])/g; + + function unescapeMd(str) { + if (str.indexOf('\\') < 0) { return str; } + return str.replace(UNESCAPE_MD_RE, '$1'); + } + + //////////////////////////////////////////////////////////////////////////////// + + function isValidEntityCode(c) { + /*eslint no-bitwise:0*/ + // broken sequence + if (c >= 0xD800 && c <= 0xDFFF) { return false; } + // never used + if (c >= 0xFDD0 && c <= 0xFDEF) { return false; } + if ((c & 0xFFFF) === 0xFFFF || (c & 0xFFFF) === 0xFFFE) { return false; } + // control codes + if (c >= 0x00 && c <= 0x08) { return false; } + if (c === 0x0B) { return false; } + if (c >= 0x0E && c <= 0x1F) { return false; } + if (c >= 0x7F && c <= 0x9F) { return false; } + // out of range + if (c > 0x10FFFF) { return false; } + return true; + } + + function fromCodePoint(c) { + /*eslint no-bitwise:0*/ + if (c > 0xffff) { + c -= 0x10000; + var surrogate1 = 0xd800 + (c >> 10), + surrogate2 = 0xdc00 + (c & 0x3ff); + + return String.fromCharCode(surrogate1, surrogate2); + } + return String.fromCharCode(c); + } + + var NAMED_ENTITY_RE = /&([a-z#][a-z0-9]{1,31});/gi; + var DIGITAL_ENTITY_TEST_RE = /^#((?:x[a-f0-9]{1,8}|[0-9]{1,8}))/i; + + function replaceEntityPattern(match, name) { + var code = 0; + var decoded = decodeEntity(name); + + if (name !== decoded) { + return decoded; + } else if (name.charCodeAt(0) === 0x23/* # */ && DIGITAL_ENTITY_TEST_RE.test(name)) { + code = name[1].toLowerCase() === 'x' ? + parseInt(name.slice(2), 16) + : + parseInt(name.slice(1), 10); + if (isValidEntityCode(code)) { + return fromCodePoint(code); + } + } + return match; + } + + function replaceEntities(str) { + if (str.indexOf('&') < 0) { return str; } + + return str.replace(NAMED_ENTITY_RE, replaceEntityPattern); + } + + //////////////////////////////////////////////////////////////////////////////// + + var HTML_ESCAPE_TEST_RE = /[&<>"]/; + var HTML_ESCAPE_REPLACE_RE = /[&<>"]/g; + var HTML_REPLACEMENTS = { + '&': '&', + '<': '<', + '>': '>', + '"': '"' + }; + + function replaceUnsafeChar(ch) { + return HTML_REPLACEMENTS[ch]; + } + + function escapeHtml(str) { + if (HTML_ESCAPE_TEST_RE.test(str)) { + return str.replace(HTML_ESCAPE_REPLACE_RE, replaceUnsafeChar); + } + return str; + } + + var utils = /*#__PURE__*/Object.freeze({ + isString: isString, + has: has, + assign: assign, + unescapeMd: unescapeMd, + isValidEntityCode: isValidEntityCode, + fromCodePoint: fromCodePoint, + replaceEntities: replaceEntities, + escapeHtml: escapeHtml + }); + + /** + * Renderer rules cache + */ + + var rules = {}; + + /** + * Blockquotes + */ + + rules.blockquote_open = function(/* tokens, idx, options, env */) { + return '
\n'; + }; + + rules.blockquote_close = function(tokens, idx /*, options, env */) { + return '
' + getBreak(tokens, idx); + }; + + /** + * Code + */ + + rules.code = function(tokens, idx /*, options, env */) { + if (tokens[idx].block) { + return '
' + escapeHtml(tokens[idx].content) + '
' + getBreak(tokens, idx); + } + return '' + escapeHtml(tokens[idx].content) + ''; + }; + + /** + * Fenced code blocks + */ + + rules.fence = function(tokens, idx, options, env, instance) { + var token = tokens[idx]; + var langClass = ''; + var langPrefix = options.langPrefix; + var langName = '', fences, fenceName; + var highlighted; + + if (token.params) { + + // + // ```foo bar + // + // Try custom renderer "foo" first. That will simplify overwrite + // for diagrams, latex, and any other fenced block with custom look + // + + fences = token.params.split(/\s+/g); + fenceName = fences.join(' '); + + if (has(instance.rules.fence_custom, fences[0])) { + return instance.rules.fence_custom[fences[0]](tokens, idx, options, env, instance); + } + + langName = escapeHtml(replaceEntities(unescapeMd(fenceName))); + langClass = ' class="' + langPrefix + langName + '"'; + } + + if (options.highlight) { + highlighted = options.highlight.apply(options.highlight, [ token.content ].concat(fences)) + || escapeHtml(token.content); + } else { + highlighted = escapeHtml(token.content); + } + + return '
'
+	        + highlighted
+	        + '
' + + getBreak(tokens, idx); + }; + + rules.fence_custom = {}; + + /** + * Headings + */ + + rules.heading_open = function(tokens, idx /*, options, env */) { + return ''; + }; + rules.heading_close = function(tokens, idx /*, options, env */) { + return '\n'; + }; + + /** + * Horizontal rules + */ + + rules.hr = function(tokens, idx, options /*, env */) { + return (options.xhtmlOut ? '
' : '
') + getBreak(tokens, idx); + }; + + /** + * Bullets + */ + + rules.bullet_list_open = function(/* tokens, idx, options, env */) { + return '' + getBreak(tokens, idx); + }; + + /** + * List items + */ + + rules.list_item_open = function(/* tokens, idx, options, env */) { + return '
  • '; + }; + rules.list_item_close = function(/* tokens, idx, options, env */) { + return '
    • \n'; + }; + + /** + * Ordered list items + */ + + rules.ordered_list_open = function(tokens, idx /*, options, env */) { + var token = tokens[idx]; + var order = token.order > 1 ? ' start="' + token.order + '"' : ''; + return '\n'; + }; + rules.ordered_list_close = function(tokens, idx /*, options, env */) { + return '' + getBreak(tokens, idx); + }; + + /** + * Paragraphs + */ + + rules.paragraph_open = function(tokens, idx /*, options, env */) { + return tokens[idx].tight ? '' : '

    '; + }; + rules.paragraph_close = function(tokens, idx /*, options, env */) { + var addBreak = !(tokens[idx].tight && idx && tokens[idx - 1].type === 'inline' && !tokens[idx - 1].content); + return (tokens[idx].tight ? '' : '

    ') + (addBreak ? getBreak(tokens, idx) : ''); + }; + + /** + * Links + */ + + rules.link_open = function(tokens, idx, options /* env */) { + var title = tokens[idx].title ? (' title="' + escapeHtml(replaceEntities(tokens[idx].title)) + '"') : ''; + var target = options.linkTarget ? (' target="' + options.linkTarget + '"') : ''; + return ''; + }; + rules.link_close = function(/* tokens, idx, options, env */) { + return ''; + }; + + /** + * Images + */ + + rules.image = function(tokens, idx, options /*, env */) { + var src = ' src="' + escapeHtml(tokens[idx].src) + '"'; + var title = tokens[idx].title ? (' title="' + escapeHtml(replaceEntities(tokens[idx].title)) + '"') : ''; + var alt = ' alt="' + (tokens[idx].alt ? escapeHtml(replaceEntities(unescapeMd(tokens[idx].alt))) : '') + '"'; + var suffix = options.xhtmlOut ? ' /' : ''; + return ''; + }; + + /** + * Tables + */ + + rules.table_open = function(/* tokens, idx, options, env */) { + return '\n'; + }; + rules.table_close = function(/* tokens, idx, options, env */) { + return '
    \n'; + }; + rules.thead_open = function(/* tokens, idx, options, env */) { + return '\n'; + }; + rules.thead_close = function(/* tokens, idx, options, env */) { + return '\n'; + }; + rules.tbody_open = function(/* tokens, idx, options, env */) { + return '\n'; + }; + rules.tbody_close = function(/* tokens, idx, options, env */) { + return '\n'; + }; + rules.tr_open = function(/* tokens, idx, options, env */) { + return ''; + }; + rules.tr_close = function(/* tokens, idx, options, env */) { + return '\n'; + }; + rules.th_open = function(tokens, idx /*, options, env */) { + var token = tokens[idx]; + return ''; + }; + rules.th_close = function(/* tokens, idx, options, env */) { + return ''; + }; + rules.td_open = function(tokens, idx /*, options, env */) { + var token = tokens[idx]; + return ''; + }; + rules.td_close = function(/* tokens, idx, options, env */) { + return ''; + }; + + /** + * Bold + */ + + rules.strong_open = function(/* tokens, idx, options, env */) { + return ''; + }; + rules.strong_close = function(/* tokens, idx, options, env */) { + return ''; + }; + + /** + * Italicize + */ + + rules.em_open = function(/* tokens, idx, options, env */) { + return ''; + }; + rules.em_close = function(/* tokens, idx, options, env */) { + return ''; + }; + + /** + * Strikethrough + */ + + rules.del_open = function(/* tokens, idx, options, env */) { + return ''; + }; + rules.del_close = function(/* tokens, idx, options, env */) { + return ''; + }; + + /** + * Insert + */ + + rules.ins_open = function(/* tokens, idx, options, env */) { + return ''; + }; + rules.ins_close = function(/* tokens, idx, options, env */) { + return ''; + }; + + /** + * Highlight + */ + + rules.mark_open = function(/* tokens, idx, options, env */) { + return ''; + }; + rules.mark_close = function(/* tokens, idx, options, env */) { + return ''; + }; + + /** + * Super- and sub-script + */ + + rules.sub = function(tokens, idx /*, options, env */) { + return '' + escapeHtml(tokens[idx].content) + ''; + }; + rules.sup = function(tokens, idx /*, options, env */) { + return '' + escapeHtml(tokens[idx].content) + ''; + }; + + /** + * Breaks + */ + + rules.hardbreak = function(tokens, idx, options /*, env */) { + return options.xhtmlOut ? '
    \n' : '
    \n'; + }; + rules.softbreak = function(tokens, idx, options /*, env */) { + return options.breaks ? (options.xhtmlOut ? '
    \n' : '
    \n') : '\n'; + }; + + /** + * Text + */ + + rules.text = function(tokens, idx /*, options, env */) { + return escapeHtml(tokens[idx].content); + }; + + /** + * Content + */ + + rules.htmlblock = function(tokens, idx /*, options, env */) { + return tokens[idx].content; + }; + rules.htmltag = function(tokens, idx /*, options, env */) { + return tokens[idx].content; + }; + + /** + * Abbreviations, initialism + */ + + rules.abbr_open = function(tokens, idx /*, options, env */) { + return ''; + }; + rules.abbr_close = function(/* tokens, idx, options, env */) { + return ''; + }; + + /** + * Footnotes + */ + + rules.footnote_ref = function(tokens, idx) { + var n = Number(tokens[idx].id + 1).toString(); + var id = 'fnref' + n; + if (tokens[idx].subId > 0) { + id += ':' + tokens[idx].subId; + } + return '[' + n + ']'; + }; + rules.footnote_block_open = function(tokens, idx, options) { + var hr = options.xhtmlOut + ? '
    \n' + : '
    \n'; + return hr + '
    \n
      \n'; + }; + rules.footnote_block_close = function() { + return '
    \n
    \n'; + }; + rules.footnote_open = function(tokens, idx) { + var id = Number(tokens[idx].id + 1).toString(); + return '
  • '; + }; + rules.footnote_close = function() { + return '
    • \n'; + }; + rules.footnote_anchor = function(tokens, idx) { + var n = Number(tokens[idx].id + 1).toString(); + var id = 'fnref' + n; + if (tokens[idx].subId > 0) { + id += ':' + tokens[idx].subId; + } + return ' ↩'; + }; + + /** + * Definition lists + */ + + rules.dl_open = function() { + return '
    \n'; + }; + rules.dt_open = function() { + return '
    '; + }; + rules.dd_open = function() { + return '
    '; + }; + rules.dl_close = function() { + return '
    \n'; + }; + rules.dt_close = function() { + return '\n'; + }; + rules.dd_close = function() { + return '\n'; + }; + + /** + * Helper functions + */ + + function nextToken(tokens, idx) { + if (++idx >= tokens.length - 2) { + return idx; + } + if ((tokens[idx].type === 'paragraph_open' && tokens[idx].tight) && + (tokens[idx + 1].type === 'inline' && tokens[idx + 1].content.length === 0) && + (tokens[idx + 2].type === 'paragraph_close' && tokens[idx + 2].tight)) { + return nextToken(tokens, idx + 2); + } + return idx; + } + + /** + * Check to see if `\n` is needed before the next token. + * + * @param {Array} `tokens` + * @param {Number} `idx` + * @return {String} Empty string or newline + * @api private + */ + + var getBreak = rules.getBreak = function getBreak(tokens, idx) { + idx = nextToken(tokens, idx); + if (idx < tokens.length && tokens[idx].type === 'list_item_close') { + return ''; + } + return '\n'; + }; + + /** + * Renderer class. Renders HTML and exposes `rules` to allow + * local modifications. + */ + + function Renderer() { + this.rules = assign({}, rules); + + // exported helper, for custom rules only + this.getBreak = rules.getBreak; + } + + /** + * Render a string of inline HTML with the given `tokens` and + * `options`. + * + * @param {Array} `tokens` + * @param {Object} `options` + * @param {Object} `env` + * @return {String} + * @api public + */ + + Renderer.prototype.renderInline = function (tokens, options, env) { + var _rules = this.rules; + var len = tokens.length, i = 0; + var result = ''; + + while (len--) { + result += _rules[tokens[i].type](tokens, i++, options, env, this); + } + + return result; + }; + + /** + * Render a string of HTML with the given `tokens` and + * `options`. + * + * @param {Array} `tokens` + * @param {Object} `options` + * @param {Object} `env` + * @return {String} + * @api public + */ + + Renderer.prototype.render = function (tokens, options, env) { + var _rules = this.rules; + var len = tokens.length, i = -1; + var result = ''; + + while (++i < len) { + if (tokens[i].type === 'inline') { + result += this.renderInline(tokens[i].children, options, env); + } else { + result += _rules[tokens[i].type](tokens, i, options, env, this); + } + } + return result; + }; + + /** + * Ruler is a helper class for building responsibility chains from + * parse rules. It allows: + * + * - easy stack rules chains + * - getting main chain and named chains content (as arrays of functions) + * + * Helper methods, should not be used directly. + * @api private + */ + + function Ruler() { + // List of added rules. Each element is: + // + // { name: XXX, + // enabled: Boolean, + // fn: Function(), + // alt: [ name2, name3 ] } + // + this.__rules__ = []; + + // Cached rule chains. + // + // First level - chain name, '' for default. + // Second level - digital anchor for fast filtering by charcodes. + // + this.__cache__ = null; + } + + /** + * Find the index of a rule by `name`. + * + * @param {String} `name` + * @return {Number} Index of the given `name` + * @api private + */ + + Ruler.prototype.__find__ = function (name) { + var len = this.__rules__.length; + var i = -1; + + while (len--) { + if (this.__rules__[++i].name === name) { + return i; + } + } + return -1; + }; + + /** + * Build the rules lookup cache + * + * @api private + */ + + Ruler.prototype.__compile__ = function () { + var self = this; + var chains = [ '' ]; + + // collect unique names + self.__rules__.forEach(function (rule) { + if (!rule.enabled) { + return; + } + + rule.alt.forEach(function (altName) { + if (chains.indexOf(altName) < 0) { + chains.push(altName); + } + }); + }); + + self.__cache__ = {}; + + chains.forEach(function (chain) { + self.__cache__[chain] = []; + self.__rules__.forEach(function (rule) { + if (!rule.enabled) { + return; + } + + if (chain && rule.alt.indexOf(chain) < 0) { + return; + } + self.__cache__[chain].push(rule.fn); + }); + }); + }; + + /** + * Ruler public methods + * ------------------------------------------------ + */ + + /** + * Replace rule function + * + * @param {String} `name` Rule name + * @param {Function `fn` + * @param {Object} `options` + * @api private + */ + + Ruler.prototype.at = function (name, fn, options) { + var idx = this.__find__(name); + var opt = options || {}; + + if (idx === -1) { + throw new Error('Parser rule not found: ' + name); + } + + this.__rules__[idx].fn = fn; + this.__rules__[idx].alt = opt.alt || []; + this.__cache__ = null; + }; + + /** + * Add a rule to the chain before given the `ruleName`. + * + * @param {String} `beforeName` + * @param {String} `ruleName` + * @param {Function} `fn` + * @param {Object} `options` + * @api private + */ + + Ruler.prototype.before = function (beforeName, ruleName, fn, options) { + var idx = this.__find__(beforeName); + var opt = options || {}; + + if (idx === -1) { + throw new Error('Parser rule not found: ' + beforeName); + } + + this.__rules__.splice(idx, 0, { + name: ruleName, + enabled: true, + fn: fn, + alt: opt.alt || [] + }); + + this.__cache__ = null; + }; + + /** + * Add a rule to the chain after the given `ruleName`. + * + * @param {String} `afterName` + * @param {String} `ruleName` + * @param {Function} `fn` + * @param {Object} `options` + * @api private + */ + + Ruler.prototype.after = function (afterName, ruleName, fn, options) { + var idx = this.__find__(afterName); + var opt = options || {}; + + if (idx === -1) { + throw new Error('Parser rule not found: ' + afterName); + } + + this.__rules__.splice(idx + 1, 0, { + name: ruleName, + enabled: true, + fn: fn, + alt: opt.alt || [] + }); + + this.__cache__ = null; + }; + + /** + * Add a rule to the end of chain. + * + * @param {String} `ruleName` + * @param {Function} `fn` + * @param {Object} `options` + * @return {String} + */ + + Ruler.prototype.push = function (ruleName, fn, options) { + var opt = options || {}; + + this.__rules__.push({ + name: ruleName, + enabled: true, + fn: fn, + alt: opt.alt || [] + }); + + this.__cache__ = null; + }; + + /** + * Enable a rule or list of rules. + * + * @param {String|Array} `list` Name or array of rule names to enable + * @param {Boolean} `strict` If `true`, all non listed rules will be disabled. + * @api private + */ + + Ruler.prototype.enable = function (list, strict) { + list = !Array.isArray(list) + ? [ list ] + : list; + + // In strict mode disable all existing rules first + if (strict) { + this.__rules__.forEach(function (rule) { + rule.enabled = false; + }); + } + + // Search by name and enable + list.forEach(function (name) { + var idx = this.__find__(name); + if (idx < 0) { + throw new Error('Rules manager: invalid rule name ' + name); + } + this.__rules__[idx].enabled = true; + }, this); + + this.__cache__ = null; + }; + + + /** + * Disable a rule or list of rules. + * + * @param {String|Array} `list` Name or array of rule names to disable + * @api private + */ + + Ruler.prototype.disable = function (list) { + list = !Array.isArray(list) + ? [ list ] + : list; + + // Search by name and disable + list.forEach(function (name) { + var idx = this.__find__(name); + if (idx < 0) { + throw new Error('Rules manager: invalid rule name ' + name); + } + this.__rules__[idx].enabled = false; + }, this); + + this.__cache__ = null; + }; + + /** + * Get a rules list as an array of functions. + * + * @param {String} `chainName` + * @return {Object} + * @api private + */ + + Ruler.prototype.getRules = function (chainName) { + if (this.__cache__ === null) { + this.__compile__(); + } + return this.__cache__[chainName] || []; + }; + + function block(state) { + + if (state.inlineMode) { + state.tokens.push({ + type: 'inline', + content: state.src.replace(/\n/g, ' ').trim(), + level: 0, + lines: [ 0, 1 ], + children: [] + }); + + } else { + state.block.parse(state.src, state.options, state.env, state.tokens); + } + } + + // Inline parser state + + function StateInline(src, parserInline, options, env, outTokens) { + this.src = src; + this.env = env; + this.options = options; + this.parser = parserInline; + this.tokens = outTokens; + this.pos = 0; + this.posMax = this.src.length; + this.level = 0; + this.pending = ''; + this.pendingLevel = 0; + + this.cache = []; // Stores { start: end } pairs. Useful for backtrack + // optimization of pairs parse (emphasis, strikes). + + // Link parser state vars + + this.isInLabel = false; // Set true when seek link label - we should disable + // "paired" rules (emphasis, strikes) to not skip + // tailing `]` + + this.linkLevel = 0; // Increment for each nesting link. Used to prevent + // nesting in definitions + + this.linkContent = ''; // Temporary storage for link url + + this.labelUnmatchedScopes = 0; // Track unpaired `[` for link labels + // (backtrack optimization) + } + + // Flush pending text + // + StateInline.prototype.pushPending = function () { + this.tokens.push({ + type: 'text', + content: this.pending, + level: this.pendingLevel + }); + this.pending = ''; + }; + + // Push new token to "stream". + // If pending text exists - flush it as text token + // + StateInline.prototype.push = function (token) { + if (this.pending) { + this.pushPending(); + } + + this.tokens.push(token); + this.pendingLevel = this.level; + }; + + // Store value to cache. + // !!! Implementation has parser-specific optimizations + // !!! keys MUST be integer, >= 0; values MUST be integer, > 0 + // + StateInline.prototype.cacheSet = function (key, val) { + for (var i = this.cache.length; i <= key; i++) { + this.cache.push(0); + } + + this.cache[key] = val; + }; + + // Get cache value + // + StateInline.prototype.cacheGet = function (key) { + return key < this.cache.length ? this.cache[key] : 0; + }; + + /** + * Parse link labels + * + * This function assumes that first character (`[`) already matches; + * returns the end of the label. + * + * @param {Object} state + * @param {Number} start + * @api private + */ + + function parseLinkLabel(state, start) { + var level, found, marker, + labelEnd = -1, + max = state.posMax, + oldPos = state.pos, + oldFlag = state.isInLabel; + + if (state.isInLabel) { return -1; } + + if (state.labelUnmatchedScopes) { + state.labelUnmatchedScopes--; + return -1; + } + + state.pos = start + 1; + state.isInLabel = true; + level = 1; + + while (state.pos < max) { + marker = state.src.charCodeAt(state.pos); + if (marker === 0x5B /* [ */) { + level++; + } else if (marker === 0x5D /* ] */) { + level--; + if (level === 0) { + found = true; + break; + } + } + + state.parser.skipToken(state); + } + + if (found) { + labelEnd = state.pos; + state.labelUnmatchedScopes = 0; + } else { + state.labelUnmatchedScopes = level - 1; + } + + // restore old state + state.pos = oldPos; + state.isInLabel = oldFlag; + + return labelEnd; + } + + // Parse abbreviation definitions, i.e. `*[abbr]: description` + + + function parseAbbr(str, parserInline, options, env) { + var state, labelEnd, pos, max, label, title; + + if (str.charCodeAt(0) !== 0x2A/* * */) { return -1; } + if (str.charCodeAt(1) !== 0x5B/* [ */) { return -1; } + + if (str.indexOf(']:') === -1) { return -1; } + + state = new StateInline(str, parserInline, options, env, []); + labelEnd = parseLinkLabel(state, 1); + + if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 0x3A/* : */) { return -1; } + + max = state.posMax; + + // abbr title is always one line, so looking for ending "\n" here + for (pos = labelEnd + 2; pos < max; pos++) { + if (state.src.charCodeAt(pos) === 0x0A) { break; } + } + + label = str.slice(2, labelEnd); + title = str.slice(labelEnd + 2, pos).trim(); + if (title.length === 0) { return -1; } + if (!env.abbreviations) { env.abbreviations = {}; } + // prepend ':' to avoid conflict with Object.prototype members + if (typeof env.abbreviations[':' + label] === 'undefined') { + env.abbreviations[':' + label] = title; + } + + return pos; + } + + function abbr(state) { + var tokens = state.tokens, i, l, content, pos; + + if (state.inlineMode) { + return; + } + + // Parse inlines + for (i = 1, l = tokens.length - 1; i < l; i++) { + if (tokens[i - 1].type === 'paragraph_open' && + tokens[i].type === 'inline' && + tokens[i + 1].type === 'paragraph_close') { + + content = tokens[i].content; + while (content.length) { + pos = parseAbbr(content, state.inline, state.options, state.env); + if (pos < 0) { break; } + content = content.slice(pos).trim(); + } + + tokens[i].content = content; + if (!content.length) { + tokens[i - 1].tight = true; + tokens[i + 1].tight = true; + } + } + } + } + + function normalizeLink(url) { + var normalized = replaceEntities(url); + // We shouldn't care about the result of malformed URIs, + // and should not throw an exception. + try { + normalized = decodeURI(normalized); + } catch (err) {} + return encodeURI(normalized); + } + + /** + * Parse link destination + * + * - on success it returns a string and updates state.pos; + * - on failure it returns null + * + * @param {Object} state + * @param {Number} pos + * @api private + */ + + function parseLinkDestination(state, pos) { + var code, level, link, + start = pos, + max = state.posMax; + + if (state.src.charCodeAt(pos) === 0x3C /* < */) { + pos++; + while (pos < max) { + code = state.src.charCodeAt(pos); + if (code === 0x0A /* \n */) { return false; } + if (code === 0x3E /* > */) { + link = normalizeLink(unescapeMd(state.src.slice(start + 1, pos))); + if (!state.parser.validateLink(link)) { return false; } + state.pos = pos + 1; + state.linkContent = link; + return true; + } + if (code === 0x5C /* \ */ && pos + 1 < max) { + pos += 2; + continue; + } + + pos++; + } + + // no closing '>' + return false; + } + + // this should be ... } else { ... branch + + level = 0; + while (pos < max) { + code = state.src.charCodeAt(pos); + + if (code === 0x20) { break; } + + // ascii control chars + if (code < 0x20 || code === 0x7F) { break; } + + if (code === 0x5C /* \ */ && pos + 1 < max) { + pos += 2; + continue; + } + + if (code === 0x28 /* ( */) { + level++; + if (level > 1) { break; } + } + + if (code === 0x29 /* ) */) { + level--; + if (level < 0) { break; } + } + + pos++; + } + + if (start === pos) { return false; } + + link = unescapeMd(state.src.slice(start, pos)); + if (!state.parser.validateLink(link)) { return false; } + + state.linkContent = link; + state.pos = pos; + return true; + } + + /** + * Parse link title + * + * - on success it returns a string and updates state.pos; + * - on failure it returns null + * + * @param {Object} state + * @param {Number} pos + * @api private + */ + + function parseLinkTitle(state, pos) { + var code, + start = pos, + max = state.posMax, + marker = state.src.charCodeAt(pos); + + if (marker !== 0x22 /* " */ && marker !== 0x27 /* ' */ && marker !== 0x28 /* ( */) { return false; } + + pos++; + + // if opening marker is "(", switch it to closing marker ")" + if (marker === 0x28) { marker = 0x29; } + + while (pos < max) { + code = state.src.charCodeAt(pos); + if (code === marker) { + state.pos = pos + 1; + state.linkContent = unescapeMd(state.src.slice(start + 1, pos)); + return true; + } + if (code === 0x5C /* \ */ && pos + 1 < max) { + pos += 2; + continue; + } + + pos++; + } + + return false; + } + + function normalizeReference(str) { + // use .toUpperCase() instead of .toLowerCase() + // here to avoid a conflict with Object.prototype + // members (most notably, `__proto__`) + return str.trim().replace(/\s+/g, ' ').toUpperCase(); + } + + function parseReference(str, parser, options, env) { + var state, labelEnd, pos, max, code, start, href, title, label; + + if (str.charCodeAt(0) !== 0x5B/* [ */) { return -1; } + + if (str.indexOf(']:') === -1) { return -1; } + + state = new StateInline(str, parser, options, env, []); + labelEnd = parseLinkLabel(state, 0); + + if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 0x3A/* : */) { return -1; } + + max = state.posMax; + + // [label]: destination 'title' + // ^^^ skip optional whitespace here + for (pos = labelEnd + 2; pos < max; pos++) { + code = state.src.charCodeAt(pos); + if (code !== 0x20 && code !== 0x0A) { break; } + } + + // [label]: destination 'title' + // ^^^^^^^^^^^ parse this + if (!parseLinkDestination(state, pos)) { return -1; } + href = state.linkContent; + pos = state.pos; + + // [label]: destination 'title' + // ^^^ skipping those spaces + start = pos; + for (pos = pos + 1; pos < max; pos++) { + code = state.src.charCodeAt(pos); + if (code !== 0x20 && code !== 0x0A) { break; } + } + + // [label]: destination 'title' + // ^^^^^^^ parse this + if (pos < max && start !== pos && parseLinkTitle(state, pos)) { + title = state.linkContent; + pos = state.pos; + } else { + title = ''; + pos = start; + } + + // ensure that the end of the line is empty + while (pos < max && state.src.charCodeAt(pos) === 0x20/* space */) { pos++; } + if (pos < max && state.src.charCodeAt(pos) !== 0x0A) { return -1; } + + label = normalizeReference(str.slice(1, labelEnd)); + if (typeof env.references[label] === 'undefined') { + env.references[label] = { title: title, href: href }; + } + + return pos; + } + + + function references(state) { + var tokens = state.tokens, i, l, content, pos; + + state.env.references = state.env.references || {}; + + if (state.inlineMode) { + return; + } + + // Scan definitions in paragraph inlines + for (i = 1, l = tokens.length - 1; i < l; i++) { + if (tokens[i].type === 'inline' && + tokens[i - 1].type === 'paragraph_open' && + tokens[i + 1].type === 'paragraph_close') { + + content = tokens[i].content; + while (content.length) { + pos = parseReference(content, state.inline, state.options, state.env); + if (pos < 0) { break; } + content = content.slice(pos).trim(); + } + + tokens[i].content = content; + if (!content.length) { + tokens[i - 1].tight = true; + tokens[i + 1].tight = true; + } + } + } + } + + function inline(state) { + var tokens = state.tokens, tok, i, l; + + // Parse inlines + for (i = 0, l = tokens.length; i < l; i++) { + tok = tokens[i]; + if (tok.type === 'inline') { + state.inline.parse(tok.content, state.options, state.env, tok.children); + } + } + } + + function footnote_block(state) { + var i, l, j, t, lastParagraph, list, tokens, current, currentLabel, + level = 0, + insideRef = false, + refTokens = {}; + + if (!state.env.footnotes) { return; } + + state.tokens = state.tokens.filter(function(tok) { + if (tok.type === 'footnote_reference_open') { + insideRef = true; + current = []; + currentLabel = tok.label; + return false; + } + if (tok.type === 'footnote_reference_close') { + insideRef = false; + // prepend ':' to avoid conflict with Object.prototype members + refTokens[':' + currentLabel] = current; + return false; + } + if (insideRef) { current.push(tok); } + return !insideRef; + }); + + if (!state.env.footnotes.list) { return; } + list = state.env.footnotes.list; + + state.tokens.push({ + type: 'footnote_block_open', + level: level++ + }); + for (i = 0, l = list.length; i < l; i++) { + state.tokens.push({ + type: 'footnote_open', + id: i, + level: level++ + }); + + if (list[i].tokens) { + tokens = []; + tokens.push({ + type: 'paragraph_open', + tight: false, + level: level++ + }); + tokens.push({ + type: 'inline', + content: '', + level: level, + children: list[i].tokens + }); + tokens.push({ + type: 'paragraph_close', + tight: false, + level: --level + }); + } else if (list[i].label) { + tokens = refTokens[':' + list[i].label]; + } + + state.tokens = state.tokens.concat(tokens); + if (state.tokens[state.tokens.length - 1].type === 'paragraph_close') { + lastParagraph = state.tokens.pop(); + } else { + lastParagraph = null; + } + + t = list[i].count > 0 ? list[i].count : 1; + for (j = 0; j < t; j++) { + state.tokens.push({ + type: 'footnote_anchor', + id: i, + subId: j, + level: level + }); + } + + if (lastParagraph) { + state.tokens.push(lastParagraph); + } + + state.tokens.push({ + type: 'footnote_close', + level: --level + }); + } + state.tokens.push({ + type: 'footnote_block_close', + level: --level + }); + } + + // Enclose abbreviations in tags + // + + var PUNCT_CHARS = ' \n()[]\'".,!?-'; + + + // from Google closure library + // http://closure-library.googlecode.com/git-history/docs/local_closure_goog_string_string.js.source.html#line1021 + function regEscape(s) { + return s.replace(/([-()\[\]{}+?*.$\^|,:#= 0; i--) { + token = tokens[i]; + if (token.type !== 'text') { continue; } + + pos = 0; + text = token.content; + reg.lastIndex = 0; + level = token.level; + nodes = []; + + while ((m = reg.exec(text))) { + if (reg.lastIndex > pos) { + nodes.push({ + type: 'text', + content: text.slice(pos, m.index + m[1].length), + level: level + }); + } + + nodes.push({ + type: 'abbr_open', + title: state.env.abbreviations[':' + m[2]], + level: level++ + }); + nodes.push({ + type: 'text', + content: m[2], + level: level + }); + nodes.push({ + type: 'abbr_close', + level: --level + }); + pos = reg.lastIndex - m[3].length; + } + + if (!nodes.length) { continue; } + + if (pos < text.length) { + nodes.push({ + type: 'text', + content: text.slice(pos), + level: level + }); + } + + // replace current node + blockTokens[j].children = tokens = [].concat(tokens.slice(0, i), nodes, tokens.slice(i + 1)); + } + } + } + + // Simple typographical replacements + // + // TODO: + // - fractionals 1/2, 1/4, 3/4 -> ½, ¼, ¾ + // - miltiplication 2 x 4 -> 2 × 4 + + var RARE_RE = /\+-|\.\.|\?\?\?\?|!!!!|,,|--/; + + var SCOPED_ABBR_RE = /\((c|tm|r|p)\)/ig; + var SCOPED_ABBR = { + 'c': '©', + 'r': '®', + 'p': '§', + 'tm': '™' + }; + + function replaceScopedAbbr(str) { + if (str.indexOf('(') < 0) { return str; } + + return str.replace(SCOPED_ABBR_RE, function(match, name) { + return SCOPED_ABBR[name.toLowerCase()]; + }); + } + + + function replace(state) { + var i, token, text, inlineTokens, blkIdx; + + if (!state.options.typographer) { return; } + + for (blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) { + + if (state.tokens[blkIdx].type !== 'inline') { continue; } + + inlineTokens = state.tokens[blkIdx].children; + + for (i = inlineTokens.length - 1; i >= 0; i--) { + token = inlineTokens[i]; + if (token.type === 'text') { + text = token.content; + + text = replaceScopedAbbr(text); + + if (RARE_RE.test(text)) { + text = text + .replace(/\+-/g, '±') + // .., ..., ....... -> … + // but ?..... & !..... -> ?.. & !.. + .replace(/\.{2,}/g, '…').replace(/([?!])…/g, '$1..') + .replace(/([?!]){4,}/g, '$1$1$1').replace(/,{2,}/g, ',') + // em-dash + .replace(/(^|[^-])---([^-]|$)/mg, '$1\u2014$2') + // en-dash + .replace(/(^|\s)--(\s|$)/mg, '$1\u2013$2') + .replace(/(^|[^-\s])--([^-\s]|$)/mg, '$1\u2013$2'); + } + + token.content = text; + } + } + } + } + + // Convert straight quotation marks to typographic ones + // + + var QUOTE_TEST_RE = /['"]/; + var QUOTE_RE = /['"]/g; + var PUNCT_RE = /[-\s()\[\]]/; + var APOSTROPHE = '’'; + + // This function returns true if the character at `pos` + // could be inside a word. + function isLetter(str, pos) { + if (pos < 0 || pos >= str.length) { return false; } + return !PUNCT_RE.test(str[pos]); + } + + + function replaceAt(str, index, ch) { + return str.substr(0, index) + ch + str.substr(index + 1); + } + + + function smartquotes(state) { + /*eslint max-depth:0*/ + var i, token, text, t, pos, max, thisLevel, lastSpace, nextSpace, item, + canOpen, canClose, j, isSingle, blkIdx, tokens, + stack; + + if (!state.options.typographer) { return; } + + stack = []; + + for (blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) { + + if (state.tokens[blkIdx].type !== 'inline') { continue; } + + tokens = state.tokens[blkIdx].children; + stack.length = 0; + + for (i = 0; i < tokens.length; i++) { + token = tokens[i]; + + if (token.type !== 'text' || QUOTE_TEST_RE.test(token.text)) { continue; } + + thisLevel = tokens[i].level; + + for (j = stack.length - 1; j >= 0; j--) { + if (stack[j].level <= thisLevel) { break; } + } + stack.length = j + 1; + + text = token.content; + pos = 0; + max = text.length; + + /*eslint no-labels:0,block-scoped-var:0*/ + OUTER: + while (pos < max) { + QUOTE_RE.lastIndex = pos; + t = QUOTE_RE.exec(text); + if (!t) { break; } + + lastSpace = !isLetter(text, t.index - 1); + pos = t.index + 1; + isSingle = (t[0] === "'"); + nextSpace = !isLetter(text, pos); + + if (!nextSpace && !lastSpace) { + // middle of word + if (isSingle) { + token.content = replaceAt(token.content, t.index, APOSTROPHE); + } + continue; + } + + canOpen = !nextSpace; + canClose = !lastSpace; + + if (canClose) { + // this could be a closing quote, rewind the stack to get a match + for (j = stack.length - 1; j >= 0; j--) { + item = stack[j]; + if (stack[j].level < thisLevel) { break; } + if (item.single === isSingle && stack[j].level === thisLevel) { + item = stack[j]; + if (isSingle) { + tokens[item.token].content = replaceAt(tokens[item.token].content, item.pos, state.options.quotes[2]); + token.content = replaceAt(token.content, t.index, state.options.quotes[3]); + } else { + tokens[item.token].content = replaceAt(tokens[item.token].content, item.pos, state.options.quotes[0]); + token.content = replaceAt(token.content, t.index, state.options.quotes[1]); + } + stack.length = j; + continue OUTER; + } + } + } + + if (canOpen) { + stack.push({ + token: i, + pos: t.index, + single: isSingle, + level: thisLevel + }); + } else if (canClose && isSingle) { + token.content = replaceAt(token.content, t.index, APOSTROPHE); + } + } + } + } + } + + /** + * Core parser `rules` + */ + + var _rules = [ + [ 'block', block ], + [ 'abbr', abbr ], + [ 'references', references ], + [ 'inline', inline ], + [ 'footnote_tail', footnote_block ], + [ 'abbr2', abbr2 ], + [ 'replacements', replace ], + [ 'smartquotes', smartquotes ], + ]; + + /** + * Class for top level (`core`) parser rules + * + * @api private + */ + + function Core() { + this.options = {}; + this.ruler = new Ruler(); + for (var i = 0; i < _rules.length; i++) { + this.ruler.push(_rules[i][0], _rules[i][1]); + } + } + + /** + * Process rules with the given `state` + * + * @param {Object} `state` + * @api private + */ + + Core.prototype.process = function (state) { + var i, l, rules; + rules = this.ruler.getRules(''); + for (i = 0, l = rules.length; i < l; i++) { + rules[i](state); + } + }; + + // Parser state class + + function StateBlock(src, parser, options, env, tokens) { + var ch, s, start, pos, len, indent, indent_found; + + this.src = src; + + // Shortcuts to simplify nested calls + this.parser = parser; + + this.options = options; + + this.env = env; + + // + // Internal state vartiables + // + + this.tokens = tokens; + + this.bMarks = []; // line begin offsets for fast jumps + this.eMarks = []; // line end offsets for fast jumps + this.tShift = []; // indent for each line + + // block parser variables + this.blkIndent = 0; // required block content indent + // (for example, if we are in list) + this.line = 0; // line index in src + this.lineMax = 0; // lines count + this.tight = false; // loose/tight mode for lists + this.parentType = 'root'; // if `list`, block parser stops on two newlines + this.ddIndent = -1; // indent of the current dd block (-1 if there isn't any) + + this.level = 0; + + // renderer + this.result = ''; + + // Create caches + // Generate markers. + s = this.src; + indent = 0; + indent_found = false; + + for (start = pos = indent = 0, len = s.length; pos < len; pos++) { + ch = s.charCodeAt(pos); + + if (!indent_found) { + if (ch === 0x20/* space */) { + indent++; + continue; + } else { + indent_found = true; + } + } + + if (ch === 0x0A || pos === len - 1) { + if (ch !== 0x0A) { pos++; } + this.bMarks.push(start); + this.eMarks.push(pos); + this.tShift.push(indent); + + indent_found = false; + indent = 0; + start = pos + 1; + } + } + + // Push fake entry to simplify cache bounds checks + this.bMarks.push(s.length); + this.eMarks.push(s.length); + this.tShift.push(0); + + this.lineMax = this.bMarks.length - 1; // don't count last fake line + } + + StateBlock.prototype.isEmpty = function isEmpty(line) { + return this.bMarks[line] + this.tShift[line] >= this.eMarks[line]; + }; + + StateBlock.prototype.skipEmptyLines = function skipEmptyLines(from) { + for (var max = this.lineMax; from < max; from++) { + if (this.bMarks[from] + this.tShift[from] < this.eMarks[from]) { + break; + } + } + return from; + }; + + // Skip spaces from given position. + StateBlock.prototype.skipSpaces = function skipSpaces(pos) { + for (var max = this.src.length; pos < max; pos++) { + if (this.src.charCodeAt(pos) !== 0x20/* space */) { break; } + } + return pos; + }; + + // Skip char codes from given position + StateBlock.prototype.skipChars = function skipChars(pos, code) { + for (var max = this.src.length; pos < max; pos++) { + if (this.src.charCodeAt(pos) !== code) { break; } + } + return pos; + }; + + // Skip char codes reverse from given position - 1 + StateBlock.prototype.skipCharsBack = function skipCharsBack(pos, code, min) { + if (pos <= min) { return pos; } + + while (pos > min) { + if (code !== this.src.charCodeAt(--pos)) { return pos + 1; } + } + return pos; + }; + + // cut lines range from source. + StateBlock.prototype.getLines = function getLines(begin, end, indent, keepLastLF) { + var i, first, last, queue, shift, + line = begin; + + if (begin >= end) { + return ''; + } + + // Opt: don't use push queue for single line; + if (line + 1 === end) { + first = this.bMarks[line] + Math.min(this.tShift[line], indent); + last = keepLastLF ? this.eMarks[line] + 1 : this.eMarks[line]; + return this.src.slice(first, last); + } + + queue = new Array(end - begin); + + for (i = 0; line < end; line++, i++) { + shift = this.tShift[line]; + if (shift > indent) { shift = indent; } + if (shift < 0) { shift = 0; } + + first = this.bMarks[line] + shift; + + if (line + 1 < end || keepLastLF) { + // No need for bounds check because we have fake entry on tail. + last = this.eMarks[line] + 1; + } else { + last = this.eMarks[line]; + } + + queue[i] = this.src.slice(first, last); + } + + return queue.join(''); + }; + + // Code block (4 spaces padded) + + function code(state, startLine, endLine/*, silent*/) { + var nextLine, last; + + if (state.tShift[startLine] - state.blkIndent < 4) { return false; } + + last = nextLine = startLine + 1; + + while (nextLine < endLine) { + if (state.isEmpty(nextLine)) { + nextLine++; + continue; + } + if (state.tShift[nextLine] - state.blkIndent >= 4) { + nextLine++; + last = nextLine; + continue; + } + break; + } + + state.line = nextLine; + state.tokens.push({ + type: 'code', + content: state.getLines(startLine, last, 4 + state.blkIndent, true), + block: true, + lines: [ startLine, state.line ], + level: state.level + }); + + return true; + } + + // fences (``` lang, ~~~ lang) + + function fences(state, startLine, endLine, silent) { + var marker, len, params, nextLine, mem, + haveEndMarker = false, + pos = state.bMarks[startLine] + state.tShift[startLine], + max = state.eMarks[startLine]; + + if (pos + 3 > max) { return false; } + + marker = state.src.charCodeAt(pos); + + if (marker !== 0x7E/* ~ */ && marker !== 0x60 /* ` */) { + return false; + } + + // scan marker length + mem = pos; + pos = state.skipChars(pos, marker); + + len = pos - mem; + + if (len < 3) { return false; } + + params = state.src.slice(pos, max).trim(); + + if (params.indexOf('`') >= 0) { return false; } + + // Since start is found, we can report success here in validation mode + if (silent) { return true; } + + // search end of block + nextLine = startLine; + + for (;;) { + nextLine++; + if (nextLine >= endLine) { + // unclosed block should be autoclosed by end of document. + // also block seems to be autoclosed by end of parent + break; + } + + pos = mem = state.bMarks[nextLine] + state.tShift[nextLine]; + max = state.eMarks[nextLine]; + + if (pos < max && state.tShift[nextLine] < state.blkIndent) { + // non-empty line with negative indent should stop the list: + // - ``` + // test + break; + } + + if (state.src.charCodeAt(pos) !== marker) { continue; } + + if (state.tShift[nextLine] - state.blkIndent >= 4) { + // closing fence should be indented less than 4 spaces + continue; + } + + pos = state.skipChars(pos, marker); + + // closing code fence must be at least as long as the opening one + if (pos - mem < len) { continue; } + + // make sure tail has spaces only + pos = state.skipSpaces(pos); + + if (pos < max) { continue; } + + haveEndMarker = true; + // found! + break; + } + + // If a fence has heading spaces, they should be removed from its inner block + len = state.tShift[startLine]; + + state.line = nextLine + (haveEndMarker ? 1 : 0); + state.tokens.push({ + type: 'fence', + params: params, + content: state.getLines(startLine + 1, nextLine, len, true), + lines: [ startLine, state.line ], + level: state.level + }); + + return true; + } + + // Block quotes + + function blockquote(state, startLine, endLine, silent) { + var nextLine, lastLineEmpty, oldTShift, oldBMarks, oldIndent, oldParentType, lines, + terminatorRules, + i, l, terminate, + pos = state.bMarks[startLine] + state.tShift[startLine], + max = state.eMarks[startLine]; + + if (pos > max) { return false; } + + // check the block quote marker + if (state.src.charCodeAt(pos++) !== 0x3E/* > */) { return false; } + + if (state.level >= state.options.maxNesting) { return false; } + + // we know that it's going to be a valid blockquote, + // so no point trying to find the end of it in silent mode + if (silent) { return true; } + + // skip one optional space after '>' + if (state.src.charCodeAt(pos) === 0x20) { pos++; } + + oldIndent = state.blkIndent; + state.blkIndent = 0; + + oldBMarks = [ state.bMarks[startLine] ]; + state.bMarks[startLine] = pos; + + // check if we have an empty blockquote + pos = pos < max ? state.skipSpaces(pos) : pos; + lastLineEmpty = pos >= max; + + oldTShift = [ state.tShift[startLine] ]; + state.tShift[startLine] = pos - state.bMarks[startLine]; + + terminatorRules = state.parser.ruler.getRules('blockquote'); + + // Search the end of the block + // + // Block ends with either: + // 1. an empty line outside: + // ``` + // > test + // + // ``` + // 2. an empty line inside: + // ``` + // > + // test + // ``` + // 3. another tag + // ``` + // > test + // - - - + // ``` + for (nextLine = startLine + 1; nextLine < endLine; nextLine++) { + pos = state.bMarks[nextLine] + state.tShift[nextLine]; + max = state.eMarks[nextLine]; + + if (pos >= max) { + // Case 1: line is not inside the blockquote, and this line is empty. + break; + } + + if (state.src.charCodeAt(pos++) === 0x3E/* > */) { + // This line is inside the blockquote. + + // skip one optional space after '>' + if (state.src.charCodeAt(pos) === 0x20) { pos++; } + + oldBMarks.push(state.bMarks[nextLine]); + state.bMarks[nextLine] = pos; + + pos = pos < max ? state.skipSpaces(pos) : pos; + lastLineEmpty = pos >= max; + + oldTShift.push(state.tShift[nextLine]); + state.tShift[nextLine] = pos - state.bMarks[nextLine]; + continue; + } + + // Case 2: line is not inside the blockquote, and the last line was empty. + if (lastLineEmpty) { break; } + + // Case 3: another tag found. + terminate = false; + for (i = 0, l = terminatorRules.length; i < l; i++) { + if (terminatorRules[i](state, nextLine, endLine, true)) { + terminate = true; + break; + } + } + if (terminate) { break; } + + oldBMarks.push(state.bMarks[nextLine]); + oldTShift.push(state.tShift[nextLine]); + + // A negative number means that this is a paragraph continuation; + // + // Any negative number will do the job here, but it's better for it + // to be large enough to make any bugs obvious. + state.tShift[nextLine] = -1337; + } + + oldParentType = state.parentType; + state.parentType = 'blockquote'; + state.tokens.push({ + type: 'blockquote_open', + lines: lines = [ startLine, 0 ], + level: state.level++ + }); + state.parser.tokenize(state, startLine, nextLine); + state.tokens.push({ + type: 'blockquote_close', + level: --state.level + }); + state.parentType = oldParentType; + lines[1] = state.line; + + // Restore original tShift; this might not be necessary since the parser + // has already been here, but just to make sure we can do that. + for (i = 0; i < oldTShift.length; i++) { + state.bMarks[i + startLine] = oldBMarks[i]; + state.tShift[i + startLine] = oldTShift[i]; + } + state.blkIndent = oldIndent; + + return true; + } + + // Horizontal rule + + function hr(state, startLine, endLine, silent) { + var marker, cnt, ch, + pos = state.bMarks[startLine], + max = state.eMarks[startLine]; + + pos += state.tShift[startLine]; + + if (pos > max) { return false; } + + marker = state.src.charCodeAt(pos++); + + // Check hr marker + if (marker !== 0x2A/* * */ && + marker !== 0x2D/* - */ && + marker !== 0x5F/* _ */) { + return false; + } + + // markers can be mixed with spaces, but there should be at least 3 one + + cnt = 1; + while (pos < max) { + ch = state.src.charCodeAt(pos++); + if (ch !== marker && ch !== 0x20/* space */) { return false; } + if (ch === marker) { cnt++; } + } + + if (cnt < 3) { return false; } + + if (silent) { return true; } + + state.line = startLine + 1; + state.tokens.push({ + type: 'hr', + lines: [ startLine, state.line ], + level: state.level + }); + + return true; + } + + // Lists + + // Search `[-+*][\n ]`, returns next pos arter marker on success + // or -1 on fail. + function skipBulletListMarker(state, startLine) { + var marker, pos, max; + + pos = state.bMarks[startLine] + state.tShift[startLine]; + max = state.eMarks[startLine]; + + if (pos >= max) { return -1; } + + marker = state.src.charCodeAt(pos++); + // Check bullet + if (marker !== 0x2A/* * */ && + marker !== 0x2D/* - */ && + marker !== 0x2B/* + */) { + return -1; + } + + if (pos < max && state.src.charCodeAt(pos) !== 0x20) { + // " 1.test " - is not a list item + return -1; + } + + return pos; + } + + // Search `\d+[.)][\n ]`, returns next pos arter marker on success + // or -1 on fail. + function skipOrderedListMarker(state, startLine) { + var ch, + pos = state.bMarks[startLine] + state.tShift[startLine], + max = state.eMarks[startLine]; + + if (pos + 1 >= max) { return -1; } + + ch = state.src.charCodeAt(pos++); + + if (ch < 0x30/* 0 */ || ch > 0x39/* 9 */) { return -1; } + + for (;;) { + // EOL -> fail + if (pos >= max) { return -1; } + + ch = state.src.charCodeAt(pos++); + + if (ch >= 0x30/* 0 */ && ch <= 0x39/* 9 */) { + continue; + } + + // found valid marker + if (ch === 0x29/* ) */ || ch === 0x2e/* . */) { + break; + } + + return -1; + } + + + if (pos < max && state.src.charCodeAt(pos) !== 0x20/* space */) { + // " 1.test " - is not a list item + return -1; + } + return pos; + } + + function markTightParagraphs(state, idx) { + var i, l, + level = state.level + 2; + + for (i = idx + 2, l = state.tokens.length - 2; i < l; i++) { + if (state.tokens[i].level === level && state.tokens[i].type === 'paragraph_open') { + state.tokens[i + 2].tight = true; + state.tokens[i].tight = true; + i += 2; + } + } + } + + + function list(state, startLine, endLine, silent) { + var nextLine, + indent, + oldTShift, + oldIndent, + oldTight, + oldParentType, + start, + posAfterMarker, + max, + indentAfterMarker, + markerValue, + markerCharCode, + isOrdered, + contentStart, + listTokIdx, + prevEmptyEnd, + listLines, + itemLines, + tight = true, + terminatorRules, + i, l, terminate; + + // Detect list type and position after marker + if ((posAfterMarker = skipOrderedListMarker(state, startLine)) >= 0) { + isOrdered = true; + } else if ((posAfterMarker = skipBulletListMarker(state, startLine)) >= 0) { + isOrdered = false; + } else { + return false; + } + + if (state.level >= state.options.maxNesting) { return false; } + + // We should terminate list on style change. Remember first one to compare. + markerCharCode = state.src.charCodeAt(posAfterMarker - 1); + + // For validation mode we can terminate immediately + if (silent) { return true; } + + // Start list + listTokIdx = state.tokens.length; + + if (isOrdered) { + start = state.bMarks[startLine] + state.tShift[startLine]; + markerValue = Number(state.src.substr(start, posAfterMarker - start - 1)); + + state.tokens.push({ + type: 'ordered_list_open', + order: markerValue, + lines: listLines = [ startLine, 0 ], + level: state.level++ + }); + + } else { + state.tokens.push({ + type: 'bullet_list_open', + lines: listLines = [ startLine, 0 ], + level: state.level++ + }); + } + + // + // Iterate list items + // + + nextLine = startLine; + prevEmptyEnd = false; + terminatorRules = state.parser.ruler.getRules('list'); + + while (nextLine < endLine) { + contentStart = state.skipSpaces(posAfterMarker); + max = state.eMarks[nextLine]; + + if (contentStart >= max) { + // trimming space in "- \n 3" case, indent is 1 here + indentAfterMarker = 1; + } else { + indentAfterMarker = contentStart - posAfterMarker; + } + + // If we have more than 4 spaces, the indent is 1 + // (the rest is just indented code block) + if (indentAfterMarker > 4) { indentAfterMarker = 1; } + + // If indent is less than 1, assume that it's one, example: + // "-\n test" + if (indentAfterMarker < 1) { indentAfterMarker = 1; } + + // " - test" + // ^^^^^ - calculating total length of this thing + indent = (posAfterMarker - state.bMarks[nextLine]) + indentAfterMarker; + + // Run subparser & write tokens + state.tokens.push({ + type: 'list_item_open', + lines: itemLines = [ startLine, 0 ], + level: state.level++ + }); + + oldIndent = state.blkIndent; + oldTight = state.tight; + oldTShift = state.tShift[startLine]; + oldParentType = state.parentType; + state.tShift[startLine] = contentStart - state.bMarks[startLine]; + state.blkIndent = indent; + state.tight = true; + state.parentType = 'list'; + + state.parser.tokenize(state, startLine, endLine, true); + + // If any of list item is tight, mark list as tight + if (!state.tight || prevEmptyEnd) { + tight = false; + } + // Item become loose if finish with empty line, + // but we should filter last element, because it means list finish + prevEmptyEnd = (state.line - startLine) > 1 && state.isEmpty(state.line - 1); + + state.blkIndent = oldIndent; + state.tShift[startLine] = oldTShift; + state.tight = oldTight; + state.parentType = oldParentType; + + state.tokens.push({ + type: 'list_item_close', + level: --state.level + }); + + nextLine = startLine = state.line; + itemLines[1] = nextLine; + contentStart = state.bMarks[startLine]; + + if (nextLine >= endLine) { break; } + + if (state.isEmpty(nextLine)) { + break; + } + + // + // Try to check if list is terminated or continued. + // + if (state.tShift[nextLine] < state.blkIndent) { break; } + + // fail if terminating block found + terminate = false; + for (i = 0, l = terminatorRules.length; i < l; i++) { + if (terminatorRules[i](state, nextLine, endLine, true)) { + terminate = true; + break; + } + } + if (terminate) { break; } + + // fail if list has another type + if (isOrdered) { + posAfterMarker = skipOrderedListMarker(state, nextLine); + if (posAfterMarker < 0) { break; } + } else { + posAfterMarker = skipBulletListMarker(state, nextLine); + if (posAfterMarker < 0) { break; } + } + + if (markerCharCode !== state.src.charCodeAt(posAfterMarker - 1)) { break; } + } + + // Finilize list + state.tokens.push({ + type: isOrdered ? 'ordered_list_close' : 'bullet_list_close', + level: --state.level + }); + listLines[1] = nextLine; + + state.line = nextLine; + + // mark paragraphs tight if needed + if (tight) { + markTightParagraphs(state, listTokIdx); + } + + return true; + } + + // Process footnote reference list + + function footnote(state, startLine, endLine, silent) { + var oldBMark, oldTShift, oldParentType, pos, label, + start = state.bMarks[startLine] + state.tShift[startLine], + max = state.eMarks[startLine]; + + // line should be at least 5 chars - "[^x]:" + if (start + 4 > max) { return false; } + + if (state.src.charCodeAt(start) !== 0x5B/* [ */) { return false; } + if (state.src.charCodeAt(start + 1) !== 0x5E/* ^ */) { return false; } + if (state.level >= state.options.maxNesting) { return false; } + + for (pos = start + 2; pos < max; pos++) { + if (state.src.charCodeAt(pos) === 0x20) { return false; } + if (state.src.charCodeAt(pos) === 0x5D /* ] */) { + break; + } + } + + if (pos === start + 2) { return false; } // no empty footnote labels + if (pos + 1 >= max || state.src.charCodeAt(++pos) !== 0x3A /* : */) { return false; } + if (silent) { return true; } + pos++; + + if (!state.env.footnotes) { state.env.footnotes = {}; } + if (!state.env.footnotes.refs) { state.env.footnotes.refs = {}; } + label = state.src.slice(start + 2, pos - 2); + state.env.footnotes.refs[':' + label] = -1; + + state.tokens.push({ + type: 'footnote_reference_open', + label: label, + level: state.level++ + }); + + oldBMark = state.bMarks[startLine]; + oldTShift = state.tShift[startLine]; + oldParentType = state.parentType; + state.tShift[startLine] = state.skipSpaces(pos) - pos; + state.bMarks[startLine] = pos; + state.blkIndent += 4; + state.parentType = 'footnote'; + + if (state.tShift[startLine] < state.blkIndent) { + state.tShift[startLine] += state.blkIndent; + state.bMarks[startLine] -= state.blkIndent; + } + + state.parser.tokenize(state, startLine, endLine, true); + + state.parentType = oldParentType; + state.blkIndent -= 4; + state.tShift[startLine] = oldTShift; + state.bMarks[startLine] = oldBMark; + + state.tokens.push({ + type: 'footnote_reference_close', + level: --state.level + }); + + return true; + } + + // heading (#, ##, ...) + + function heading(state, startLine, endLine, silent) { + var ch, level, tmp, + pos = state.bMarks[startLine] + state.tShift[startLine], + max = state.eMarks[startLine]; + + if (pos >= max) { return false; } + + ch = state.src.charCodeAt(pos); + + if (ch !== 0x23/* # */ || pos >= max) { return false; } + + // count heading level + level = 1; + ch = state.src.charCodeAt(++pos); + while (ch === 0x23/* # */ && pos < max && level <= 6) { + level++; + ch = state.src.charCodeAt(++pos); + } + + if (level > 6 || (pos < max && ch !== 0x20/* space */)) { return false; } + + if (silent) { return true; } + + // Let's cut tails like ' ### ' from the end of string + + max = state.skipCharsBack(max, 0x20, pos); // space + tmp = state.skipCharsBack(max, 0x23, pos); // # + if (tmp > pos && state.src.charCodeAt(tmp - 1) === 0x20/* space */) { + max = tmp; + } + + state.line = startLine + 1; + + state.tokens.push({ type: 'heading_open', + hLevel: level, + lines: [ startLine, state.line ], + level: state.level + }); + + // only if header is not empty + if (pos < max) { + state.tokens.push({ + type: 'inline', + content: state.src.slice(pos, max).trim(), + level: state.level + 1, + lines: [ startLine, state.line ], + children: [] + }); + } + state.tokens.push({ type: 'heading_close', hLevel: level, level: state.level }); + + return true; + } + + // lheading (---, ===) + + function lheading(state, startLine, endLine/*, silent*/) { + var marker, pos, max, + next = startLine + 1; + + if (next >= endLine) { return false; } + if (state.tShift[next] < state.blkIndent) { return false; } + + // Scan next line + + if (state.tShift[next] - state.blkIndent > 3) { return false; } + + pos = state.bMarks[next] + state.tShift[next]; + max = state.eMarks[next]; + + if (pos >= max) { return false; } + + marker = state.src.charCodeAt(pos); + + if (marker !== 0x2D/* - */ && marker !== 0x3D/* = */) { return false; } + + pos = state.skipChars(pos, marker); + + pos = state.skipSpaces(pos); + + if (pos < max) { return false; } + + pos = state.bMarks[startLine] + state.tShift[startLine]; + + state.line = next + 1; + state.tokens.push({ + type: 'heading_open', + hLevel: marker === 0x3D/* = */ ? 1 : 2, + lines: [ startLine, state.line ], + level: state.level + }); + state.tokens.push({ + type: 'inline', + content: state.src.slice(pos, state.eMarks[startLine]).trim(), + level: state.level + 1, + lines: [ startLine, state.line - 1 ], + children: [] + }); + state.tokens.push({ + type: 'heading_close', + hLevel: marker === 0x3D/* = */ ? 1 : 2, + level: state.level + }); + + return true; + } + + // List of valid html blocks names, accorting to commonmark spec + // http://jgm.github.io/CommonMark/spec.html#html-blocks + + var html_blocks = {}; + + [ + 'article', + 'aside', + 'button', + 'blockquote', + 'body', + 'canvas', + 'caption', + 'col', + 'colgroup', + 'dd', + 'div', + 'dl', + 'dt', + 'embed', + 'fieldset', + 'figcaption', + 'figure', + 'footer', + 'form', + 'h1', + 'h2', + 'h3', + 'h4', + 'h5', + 'h6', + 'header', + 'hgroup', + 'hr', + 'iframe', + 'li', + 'map', + 'object', + 'ol', + 'output', + 'p', + 'pre', + 'progress', + 'script', + 'section', + 'style', + 'table', + 'tbody', + 'td', + 'textarea', + 'tfoot', + 'th', + 'tr', + 'thead', + 'ul', + 'video' + ].forEach(function (name) { html_blocks[name] = true; }); + + // HTML block + + + var HTML_TAG_OPEN_RE = /^<([a-zA-Z]{1,15})[\s\/>]/; + var HTML_TAG_CLOSE_RE = /^<\/([a-zA-Z]{1,15})[\s>]/; + + function isLetter$1(ch) { + /*eslint no-bitwise:0*/ + var lc = ch | 0x20; // to lower case + return (lc >= 0x61/* a */) && (lc <= 0x7a/* z */); + } + + function htmlblock(state, startLine, endLine, silent) { + var ch, match, nextLine, + pos = state.bMarks[startLine], + max = state.eMarks[startLine], + shift = state.tShift[startLine]; + + pos += shift; + + if (!state.options.html) { return false; } + + if (shift > 3 || pos + 2 >= max) { return false; } + + if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false; } + + ch = state.src.charCodeAt(pos + 1); + + if (ch === 0x21/* ! */ || ch === 0x3F/* ? */) { + // Directive start / comment start / processing instruction start + if (silent) { return true; } + + } else if (ch === 0x2F/* / */ || isLetter$1(ch)) { + + // Probably start or end of tag + if (ch === 0x2F/* \ */) { + // closing tag + match = state.src.slice(pos, max).match(HTML_TAG_CLOSE_RE); + if (!match) { return false; } + } else { + // opening tag + match = state.src.slice(pos, max).match(HTML_TAG_OPEN_RE); + if (!match) { return false; } + } + // Make sure tag name is valid + if (html_blocks[match[1].toLowerCase()] !== true) { return false; } + if (silent) { return true; } + + } else { + return false; + } + + // If we are here - we detected HTML block. + // Let's roll down till empty line (block end). + nextLine = startLine + 1; + while (nextLine < state.lineMax && !state.isEmpty(nextLine)) { + nextLine++; + } + + state.line = nextLine; + state.tokens.push({ + type: 'htmlblock', + level: state.level, + lines: [ startLine, state.line ], + content: state.getLines(startLine, nextLine, 0, true) + }); + + return true; + } + + // GFM table, non-standard + + function getLine(state, line) { + var pos = state.bMarks[line] + state.blkIndent, + max = state.eMarks[line]; + + return state.src.substr(pos, max - pos); + } + + function table(state, startLine, endLine, silent) { + var ch, lineText, pos, i, nextLine, rows, cell, + aligns, t, tableLines, tbodyLines; + + // should have at least three lines + if (startLine + 2 > endLine) { return false; } + + nextLine = startLine + 1; + + if (state.tShift[nextLine] < state.blkIndent) { return false; } + + // first character of the second line should be '|' or '-' + + pos = state.bMarks[nextLine] + state.tShift[nextLine]; + if (pos >= state.eMarks[nextLine]) { return false; } + + ch = state.src.charCodeAt(pos); + if (ch !== 0x7C/* | */ && ch !== 0x2D/* - */ && ch !== 0x3A/* : */) { return false; } + + lineText = getLine(state, startLine + 1); + if (!/^[-:| ]+$/.test(lineText)) { return false; } + + rows = lineText.split('|'); + if (rows <= 2) { return false; } + aligns = []; + for (i = 0; i < rows.length; i++) { + t = rows[i].trim(); + if (!t) { + // allow empty columns before and after table, but not in between columns; + // e.g. allow ` |---| `, disallow ` ---||--- ` + if (i === 0 || i === rows.length - 1) { + continue; + } else { + return false; + } + } + + if (!/^:?-+:?$/.test(t)) { return false; } + if (t.charCodeAt(t.length - 1) === 0x3A/* : */) { + aligns.push(t.charCodeAt(0) === 0x3A/* : */ ? 'center' : 'right'); + } else if (t.charCodeAt(0) === 0x3A/* : */) { + aligns.push('left'); + } else { + aligns.push(''); + } + } + + lineText = getLine(state, startLine).trim(); + if (lineText.indexOf('|') === -1) { return false; } + rows = lineText.replace(/^\||\|$/g, '').split('|'); + if (aligns.length !== rows.length) { return false; } + if (silent) { return true; } + + state.tokens.push({ + type: 'table_open', + lines: tableLines = [ startLine, 0 ], + level: state.level++ + }); + state.tokens.push({ + type: 'thead_open', + lines: [ startLine, startLine + 1 ], + level: state.level++ + }); + + state.tokens.push({ + type: 'tr_open', + lines: [ startLine, startLine + 1 ], + level: state.level++ + }); + for (i = 0; i < rows.length; i++) { + state.tokens.push({ + type: 'th_open', + align: aligns[i], + lines: [ startLine, startLine + 1 ], + level: state.level++ + }); + state.tokens.push({ + type: 'inline', + content: rows[i].trim(), + lines: [ startLine, startLine + 1 ], + level: state.level, + children: [] + }); + state.tokens.push({ type: 'th_close', level: --state.level }); + } + state.tokens.push({ type: 'tr_close', level: --state.level }); + state.tokens.push({ type: 'thead_close', level: --state.level }); + + state.tokens.push({ + type: 'tbody_open', + lines: tbodyLines = [ startLine + 2, 0 ], + level: state.level++ + }); + + for (nextLine = startLine + 2; nextLine < endLine; nextLine++) { + if (state.tShift[nextLine] < state.blkIndent) { break; } + + lineText = getLine(state, nextLine).trim(); + if (lineText.indexOf('|') === -1) { break; } + rows = lineText.replace(/^\||\|$/g, '').split('|'); + + state.tokens.push({ type: 'tr_open', level: state.level++ }); + for (i = 0; i < rows.length; i++) { + state.tokens.push({ type: 'td_open', align: aligns[i], level: state.level++ }); + // 0x7c === '|' + cell = rows[i].substring( + rows[i].charCodeAt(0) === 0x7c ? 1 : 0, + rows[i].charCodeAt(rows[i].length - 1) === 0x7c ? rows[i].length - 1 : rows[i].length + ).trim(); + state.tokens.push({ + type: 'inline', + content: cell, + level: state.level, + children: [] + }); + state.tokens.push({ type: 'td_close', level: --state.level }); + } + state.tokens.push({ type: 'tr_close', level: --state.level }); + } + state.tokens.push({ type: 'tbody_close', level: --state.level }); + state.tokens.push({ type: 'table_close', level: --state.level }); + + tableLines[1] = tbodyLines[1] = nextLine; + state.line = nextLine; + return true; + } + + // Definition lists + + // Search `[:~][\n ]`, returns next pos after marker on success + // or -1 on fail. + function skipMarker(state, line) { + var pos, marker, + start = state.bMarks[line] + state.tShift[line], + max = state.eMarks[line]; + + if (start >= max) { return -1; } + + // Check bullet + marker = state.src.charCodeAt(start++); + if (marker !== 0x7E/* ~ */ && marker !== 0x3A/* : */) { return -1; } + + pos = state.skipSpaces(start); + + // require space after ":" + if (start === pos) { return -1; } + + // no empty definitions, e.g. " : " + if (pos >= max) { return -1; } + + return pos; + } + + function markTightParagraphs$1(state, idx) { + var i, l, + level = state.level + 2; + + for (i = idx + 2, l = state.tokens.length - 2; i < l; i++) { + if (state.tokens[i].level === level && state.tokens[i].type === 'paragraph_open') { + state.tokens[i + 2].tight = true; + state.tokens[i].tight = true; + i += 2; + } + } + } + + function deflist(state, startLine, endLine, silent) { + var contentStart, + ddLine, + dtLine, + itemLines, + listLines, + listTokIdx, + nextLine, + oldIndent, + oldDDIndent, + oldParentType, + oldTShift, + oldTight, + prevEmptyEnd, + tight; + + if (silent) { + // quirk: validation mode validates a dd block only, not a whole deflist + if (state.ddIndent < 0) { return false; } + return skipMarker(state, startLine) >= 0; + } + + nextLine = startLine + 1; + if (state.isEmpty(nextLine)) { + if (++nextLine > endLine) { return false; } + } + + if (state.tShift[nextLine] < state.blkIndent) { return false; } + contentStart = skipMarker(state, nextLine); + if (contentStart < 0) { return false; } + + if (state.level >= state.options.maxNesting) { return false; } + + // Start list + listTokIdx = state.tokens.length; + + state.tokens.push({ + type: 'dl_open', + lines: listLines = [ startLine, 0 ], + level: state.level++ + }); + + // + // Iterate list items + // + + dtLine = startLine; + ddLine = nextLine; + + // One definition list can contain multiple DTs, + // and one DT can be followed by multiple DDs. + // + // Thus, there is two loops here, and label is + // needed to break out of the second one + // + /*eslint no-labels:0,block-scoped-var:0*/ + OUTER: + for (;;) { + tight = true; + prevEmptyEnd = false; + + state.tokens.push({ + type: 'dt_open', + lines: [ dtLine, dtLine ], + level: state.level++ + }); + state.tokens.push({ + type: 'inline', + content: state.getLines(dtLine, dtLine + 1, state.blkIndent, false).trim(), + level: state.level + 1, + lines: [ dtLine, dtLine ], + children: [] + }); + state.tokens.push({ + type: 'dt_close', + level: --state.level + }); + + for (;;) { + state.tokens.push({ + type: 'dd_open', + lines: itemLines = [ nextLine, 0 ], + level: state.level++ + }); + + oldTight = state.tight; + oldDDIndent = state.ddIndent; + oldIndent = state.blkIndent; + oldTShift = state.tShift[ddLine]; + oldParentType = state.parentType; + state.blkIndent = state.ddIndent = state.tShift[ddLine] + 2; + state.tShift[ddLine] = contentStart - state.bMarks[ddLine]; + state.tight = true; + state.parentType = 'deflist'; + + state.parser.tokenize(state, ddLine, endLine, true); + + // If any of list item is tight, mark list as tight + if (!state.tight || prevEmptyEnd) { + tight = false; + } + // Item become loose if finish with empty line, + // but we should filter last element, because it means list finish + prevEmptyEnd = (state.line - ddLine) > 1 && state.isEmpty(state.line - 1); + + state.tShift[ddLine] = oldTShift; + state.tight = oldTight; + state.parentType = oldParentType; + state.blkIndent = oldIndent; + state.ddIndent = oldDDIndent; + + state.tokens.push({ + type: 'dd_close', + level: --state.level + }); + + itemLines[1] = nextLine = state.line; + + if (nextLine >= endLine) { break OUTER; } + + if (state.tShift[nextLine] < state.blkIndent) { break OUTER; } + contentStart = skipMarker(state, nextLine); + if (contentStart < 0) { break; } + + ddLine = nextLine; + + // go to the next loop iteration: + // insert DD tag and repeat checking + } + + if (nextLine >= endLine) { break; } + dtLine = nextLine; + + if (state.isEmpty(dtLine)) { break; } + if (state.tShift[dtLine] < state.blkIndent) { break; } + + ddLine = dtLine + 1; + if (ddLine >= endLine) { break; } + if (state.isEmpty(ddLine)) { ddLine++; } + if (ddLine >= endLine) { break; } + + if (state.tShift[ddLine] < state.blkIndent) { break; } + contentStart = skipMarker(state, ddLine); + if (contentStart < 0) { break; } + + // go to the next loop iteration: + // insert DT and DD tags and repeat checking + } + + // Finilize list + state.tokens.push({ + type: 'dl_close', + level: --state.level + }); + listLines[1] = nextLine; + + state.line = nextLine; + + // mark paragraphs tight if needed + if (tight) { + markTightParagraphs$1(state, listTokIdx); + } + + return true; + } + + // Paragraph + + function paragraph(state, startLine/*, endLine*/) { + var endLine, content, terminate, i, l, + nextLine = startLine + 1, + terminatorRules; + + endLine = state.lineMax; + + // jump line-by-line until empty one or EOF + if (nextLine < endLine && !state.isEmpty(nextLine)) { + terminatorRules = state.parser.ruler.getRules('paragraph'); + + for (; nextLine < endLine && !state.isEmpty(nextLine); nextLine++) { + // this would be a code block normally, but after paragraph + // it's considered a lazy continuation regardless of what's there + if (state.tShift[nextLine] - state.blkIndent > 3) { continue; } + + // Some tags can terminate paragraph without empty line. + terminate = false; + for (i = 0, l = terminatorRules.length; i < l; i++) { + if (terminatorRules[i](state, nextLine, endLine, true)) { + terminate = true; + break; + } + } + if (terminate) { break; } + } + } + + content = state.getLines(startLine, nextLine, state.blkIndent, false).trim(); + + state.line = nextLine; + if (content.length) { + state.tokens.push({ + type: 'paragraph_open', + tight: false, + lines: [ startLine, state.line ], + level: state.level + }); + state.tokens.push({ + type: 'inline', + content: content, + level: state.level + 1, + lines: [ startLine, state.line ], + children: [] + }); + state.tokens.push({ + type: 'paragraph_close', + tight: false, + level: state.level + }); + } + + return true; + } + + /** + * Parser rules + */ + + var _rules$1 = [ + [ 'code', code ], + [ 'fences', fences, [ 'paragraph', 'blockquote', 'list' ] ], + [ 'blockquote', blockquote, [ 'paragraph', 'blockquote', 'list' ] ], + [ 'hr', hr, [ 'paragraph', 'blockquote', 'list' ] ], + [ 'list', list, [ 'paragraph', 'blockquote' ] ], + [ 'footnote', footnote, [ 'paragraph' ] ], + [ 'heading', heading, [ 'paragraph', 'blockquote' ] ], + [ 'lheading', lheading ], + [ 'htmlblock', htmlblock, [ 'paragraph', 'blockquote' ] ], + [ 'table', table, [ 'paragraph' ] ], + [ 'deflist', deflist, [ 'paragraph' ] ], + [ 'paragraph', paragraph ] + ]; + + /** + * Block Parser class + * + * @api private + */ + + function ParserBlock() { + this.ruler = new Ruler(); + for (var i = 0; i < _rules$1.length; i++) { + this.ruler.push(_rules$1[i][0], _rules$1[i][1], { + alt: (_rules$1[i][2] || []).slice() + }); + } + } + + /** + * Generate tokens for the given input range. + * + * @param {Object} `state` Has properties like `src`, `parser`, `options` etc + * @param {Number} `startLine` + * @param {Number} `endLine` + * @api private + */ + + ParserBlock.prototype.tokenize = function (state, startLine, endLine) { + var rules = this.ruler.getRules(''); + var len = rules.length; + var line = startLine; + var hasEmptyLines = false; + var ok, i; + + while (line < endLine) { + state.line = line = state.skipEmptyLines(line); + if (line >= endLine) { + break; + } + + // Termination condition for nested calls. + // Nested calls currently used for blockquotes & lists + if (state.tShift[line] < state.blkIndent) { + break; + } + + // Try all possible rules. + // On success, rule should: + // + // - update `state.line` + // - update `state.tokens` + // - return true + + for (i = 0; i < len; i++) { + ok = rules[i](state, line, endLine, false); + if (ok) { + break; + } + } + + // set state.tight iff we had an empty line before current tag + // i.e. latest empty line should not count + state.tight = !hasEmptyLines; + + // paragraph might "eat" one newline after it in nested lists + if (state.isEmpty(state.line - 1)) { + hasEmptyLines = true; + } + + line = state.line; + + if (line < endLine && state.isEmpty(line)) { + hasEmptyLines = true; + line++; + + // two empty lines should stop the parser in list mode + if (line < endLine && state.parentType === 'list' && state.isEmpty(line)) { break; } + state.line = line; + } + } + }; + + var TABS_SCAN_RE = /[\n\t]/g; + var NEWLINES_RE = /\r[\n\u0085]|[\u2424\u2028\u0085]/g; + var SPACES_RE = /\u00a0/g; + + /** + * Tokenize the given `str`. + * + * @param {String} `str` Source string + * @param {Object} `options` + * @param {Object} `env` + * @param {Array} `outTokens` + * @api private + */ + + ParserBlock.prototype.parse = function (str, options, env, outTokens) { + var state, lineStart = 0, lastTabPos = 0; + if (!str) { return []; } + + // Normalize spaces + str = str.replace(SPACES_RE, ' '); + + // Normalize newlines + str = str.replace(NEWLINES_RE, '\n'); + + // Replace tabs with proper number of spaces (1..4) + if (str.indexOf('\t') >= 0) { + str = str.replace(TABS_SCAN_RE, function (match, offset) { + var result; + if (str.charCodeAt(offset) === 0x0A) { + lineStart = offset + 1; + lastTabPos = 0; + return match; + } + result = ' '.slice((offset - lineStart - lastTabPos) % 4); + lastTabPos = offset - lineStart + 1; + return result; + }); + } + + state = new StateBlock(str, this, options, env, outTokens); + this.tokenize(state, state.line, state.lineMax); + }; + + // Skip text characters for text token, place those to pending buffer + // and increment current pos + + // Rule to skip pure text + // '{}$%@~+=:' reserved for extentions + + function isTerminatorChar(ch) { + switch (ch) { + case 0x0A/* \n */: + case 0x5C/* \ */: + case 0x60/* ` */: + case 0x2A/* * */: + case 0x5F/* _ */: + case 0x5E/* ^ */: + case 0x5B/* [ */: + case 0x5D/* ] */: + case 0x21/* ! */: + case 0x26/* & */: + case 0x3C/* < */: + case 0x3E/* > */: + case 0x7B/* { */: + case 0x7D/* } */: + case 0x24/* $ */: + case 0x25/* % */: + case 0x40/* @ */: + case 0x7E/* ~ */: + case 0x2B/* + */: + case 0x3D/* = */: + case 0x3A/* : */: + return true; + default: + return false; + } + } + + function text(state, silent) { + var pos = state.pos; + + while (pos < state.posMax && !isTerminatorChar(state.src.charCodeAt(pos))) { + pos++; + } + + if (pos === state.pos) { return false; } + + if (!silent) { state.pending += state.src.slice(state.pos, pos); } + + state.pos = pos; + + return true; + } + + // Proceess '\n' + + function newline(state, silent) { + var pmax, max, pos = state.pos; + + if (state.src.charCodeAt(pos) !== 0x0A/* \n */) { return false; } + + pmax = state.pending.length - 1; + max = state.posMax; + + // ' \n' -> hardbreak + // Lookup in pending chars is bad practice! Don't copy to other rules! + // Pending string is stored in concat mode, indexed lookups will cause + // convertion to flat mode. + if (!silent) { + if (pmax >= 0 && state.pending.charCodeAt(pmax) === 0x20) { + if (pmax >= 1 && state.pending.charCodeAt(pmax - 1) === 0x20) { + // Strip out all trailing spaces on this line. + for (var i = pmax - 2; i >= 0; i--) { + if (state.pending.charCodeAt(i) !== 0x20) { + state.pending = state.pending.substring(0, i + 1); + break; + } + } + state.push({ + type: 'hardbreak', + level: state.level + }); + } else { + state.pending = state.pending.slice(0, -1); + state.push({ + type: 'softbreak', + level: state.level + }); + } + + } else { + state.push({ + type: 'softbreak', + level: state.level + }); + } + } + + pos++; + + // skip heading spaces for next line + while (pos < max && state.src.charCodeAt(pos) === 0x20) { pos++; } + + state.pos = pos; + return true; + } + + // Proceess escaped chars and hardbreaks + + var ESCAPED = []; + + for (var i = 0; i < 256; i++) { ESCAPED.push(0); } + + '\\!"#$%&\'()*+,./:;<=>?@[]^_`{|}~-' + .split('').forEach(function(ch) { ESCAPED[ch.charCodeAt(0)] = 1; }); + + + function escape(state, silent) { + var ch, pos = state.pos, max = state.posMax; + + if (state.src.charCodeAt(pos) !== 0x5C/* \ */) { return false; } + + pos++; + + if (pos < max) { + ch = state.src.charCodeAt(pos); + + if (ch < 256 && ESCAPED[ch] !== 0) { + if (!silent) { state.pending += state.src[pos]; } + state.pos += 2; + return true; + } + + if (ch === 0x0A) { + if (!silent) { + state.push({ + type: 'hardbreak', + level: state.level + }); + } + + pos++; + // skip leading whitespaces from next line + while (pos < max && state.src.charCodeAt(pos) === 0x20) { pos++; } + + state.pos = pos; + return true; + } + } + + if (!silent) { state.pending += '\\'; } + state.pos++; + return true; + } + + // Parse backticks + + function backticks(state, silent) { + var start, max, marker, matchStart, matchEnd, + pos = state.pos, + ch = state.src.charCodeAt(pos); + + if (ch !== 0x60/* ` */) { return false; } + + start = pos; + pos++; + max = state.posMax; + + while (pos < max && state.src.charCodeAt(pos) === 0x60/* ` */) { pos++; } + + marker = state.src.slice(start, pos); + + matchStart = matchEnd = pos; + + while ((matchStart = state.src.indexOf('`', matchEnd)) !== -1) { + matchEnd = matchStart + 1; + + while (matchEnd < max && state.src.charCodeAt(matchEnd) === 0x60/* ` */) { matchEnd++; } + + if (matchEnd - matchStart === marker.length) { + if (!silent) { + state.push({ + type: 'code', + content: state.src.slice(pos, matchStart) + .replace(/[ \n]+/g, ' ') + .trim(), + block: false, + level: state.level + }); + } + state.pos = matchEnd; + return true; + } + } + + if (!silent) { state.pending += marker; } + state.pos += marker.length; + return true; + } + + // Process ~~deleted text~~ + + function del(state, silent) { + var found, + pos, + stack, + max = state.posMax, + start = state.pos, + lastChar, + nextChar; + + if (state.src.charCodeAt(start) !== 0x7E/* ~ */) { return false; } + if (silent) { return false; } // don't run any pairs in validation mode + if (start + 4 >= max) { return false; } + if (state.src.charCodeAt(start + 1) !== 0x7E/* ~ */) { return false; } + if (state.level >= state.options.maxNesting) { return false; } + + lastChar = start > 0 ? state.src.charCodeAt(start - 1) : -1; + nextChar = state.src.charCodeAt(start + 2); + + if (lastChar === 0x7E/* ~ */) { return false; } + if (nextChar === 0x7E/* ~ */) { return false; } + if (nextChar === 0x20 || nextChar === 0x0A) { return false; } + + pos = start + 2; + while (pos < max && state.src.charCodeAt(pos) === 0x7E/* ~ */) { pos++; } + if (pos > start + 3) { + // sequence of 4+ markers taking as literal, same as in a emphasis + state.pos += pos - start; + if (!silent) { state.pending += state.src.slice(start, pos); } + return true; + } + + state.pos = start + 2; + stack = 1; + + while (state.pos + 1 < max) { + if (state.src.charCodeAt(state.pos) === 0x7E/* ~ */) { + if (state.src.charCodeAt(state.pos + 1) === 0x7E/* ~ */) { + lastChar = state.src.charCodeAt(state.pos - 1); + nextChar = state.pos + 2 < max ? state.src.charCodeAt(state.pos + 2) : -1; + if (nextChar !== 0x7E/* ~ */ && lastChar !== 0x7E/* ~ */) { + if (lastChar !== 0x20 && lastChar !== 0x0A) { + // closing '~~' + stack--; + } else if (nextChar !== 0x20 && nextChar !== 0x0A) { + // opening '~~' + stack++; + } // else { + // // standalone ' ~~ ' indented with spaces + // } + if (stack <= 0) { + found = true; + break; + } + } + } + } + + state.parser.skipToken(state); + } + + if (!found) { + // parser failed to find ending tag, so it's not valid emphasis + state.pos = start; + return false; + } + + // found! + state.posMax = state.pos; + state.pos = start + 2; + + if (!silent) { + state.push({ type: 'del_open', level: state.level++ }); + state.parser.tokenize(state); + state.push({ type: 'del_close', level: --state.level }); + } + + state.pos = state.posMax + 2; + state.posMax = max; + return true; + } + + // Process ++inserted text++ + + function ins(state, silent) { + var found, + pos, + stack, + max = state.posMax, + start = state.pos, + lastChar, + nextChar; + + if (state.src.charCodeAt(start) !== 0x2B/* + */) { return false; } + if (silent) { return false; } // don't run any pairs in validation mode + if (start + 4 >= max) { return false; } + if (state.src.charCodeAt(start + 1) !== 0x2B/* + */) { return false; } + if (state.level >= state.options.maxNesting) { return false; } + + lastChar = start > 0 ? state.src.charCodeAt(start - 1) : -1; + nextChar = state.src.charCodeAt(start + 2); + + if (lastChar === 0x2B/* + */) { return false; } + if (nextChar === 0x2B/* + */) { return false; } + if (nextChar === 0x20 || nextChar === 0x0A) { return false; } + + pos = start + 2; + while (pos < max && state.src.charCodeAt(pos) === 0x2B/* + */) { pos++; } + if (pos !== start + 2) { + // sequence of 3+ markers taking as literal, same as in a emphasis + state.pos += pos - start; + if (!silent) { state.pending += state.src.slice(start, pos); } + return true; + } + + state.pos = start + 2; + stack = 1; + + while (state.pos + 1 < max) { + if (state.src.charCodeAt(state.pos) === 0x2B/* + */) { + if (state.src.charCodeAt(state.pos + 1) === 0x2B/* + */) { + lastChar = state.src.charCodeAt(state.pos - 1); + nextChar = state.pos + 2 < max ? state.src.charCodeAt(state.pos + 2) : -1; + if (nextChar !== 0x2B/* + */ && lastChar !== 0x2B/* + */) { + if (lastChar !== 0x20 && lastChar !== 0x0A) { + // closing '++' + stack--; + } else if (nextChar !== 0x20 && nextChar !== 0x0A) { + // opening '++' + stack++; + } // else { + // // standalone ' ++ ' indented with spaces + // } + if (stack <= 0) { + found = true; + break; + } + } + } + } + + state.parser.skipToken(state); + } + + if (!found) { + // parser failed to find ending tag, so it's not valid emphasis + state.pos = start; + return false; + } + + // found! + state.posMax = state.pos; + state.pos = start + 2; + + if (!silent) { + state.push({ type: 'ins_open', level: state.level++ }); + state.parser.tokenize(state); + state.push({ type: 'ins_close', level: --state.level }); + } + + state.pos = state.posMax + 2; + state.posMax = max; + return true; + } + + // Process ==highlighted text== + + function mark(state, silent) { + var found, + pos, + stack, + max = state.posMax, + start = state.pos, + lastChar, + nextChar; + + if (state.src.charCodeAt(start) !== 0x3D/* = */) { return false; } + if (silent) { return false; } // don't run any pairs in validation mode + if (start + 4 >= max) { return false; } + if (state.src.charCodeAt(start + 1) !== 0x3D/* = */) { return false; } + if (state.level >= state.options.maxNesting) { return false; } + + lastChar = start > 0 ? state.src.charCodeAt(start - 1) : -1; + nextChar = state.src.charCodeAt(start + 2); + + if (lastChar === 0x3D/* = */) { return false; } + if (nextChar === 0x3D/* = */) { return false; } + if (nextChar === 0x20 || nextChar === 0x0A) { return false; } + + pos = start + 2; + while (pos < max && state.src.charCodeAt(pos) === 0x3D/* = */) { pos++; } + if (pos !== start + 2) { + // sequence of 3+ markers taking as literal, same as in a emphasis + state.pos += pos - start; + if (!silent) { state.pending += state.src.slice(start, pos); } + return true; + } + + state.pos = start + 2; + stack = 1; + + while (state.pos + 1 < max) { + if (state.src.charCodeAt(state.pos) === 0x3D/* = */) { + if (state.src.charCodeAt(state.pos + 1) === 0x3D/* = */) { + lastChar = state.src.charCodeAt(state.pos - 1); + nextChar = state.pos + 2 < max ? state.src.charCodeAt(state.pos + 2) : -1; + if (nextChar !== 0x3D/* = */ && lastChar !== 0x3D/* = */) { + if (lastChar !== 0x20 && lastChar !== 0x0A) { + // closing '==' + stack--; + } else if (nextChar !== 0x20 && nextChar !== 0x0A) { + // opening '==' + stack++; + } // else { + // // standalone ' == ' indented with spaces + // } + if (stack <= 0) { + found = true; + break; + } + } + } + } + + state.parser.skipToken(state); + } + + if (!found) { + // parser failed to find ending tag, so it's not valid emphasis + state.pos = start; + return false; + } + + // found! + state.posMax = state.pos; + state.pos = start + 2; + + if (!silent) { + state.push({ type: 'mark_open', level: state.level++ }); + state.parser.tokenize(state); + state.push({ type: 'mark_close', level: --state.level }); + } + + state.pos = state.posMax + 2; + state.posMax = max; + return true; + } + + // Process *this* and _that_ + + function isAlphaNum(code) { + return (code >= 0x30 /* 0 */ && code <= 0x39 /* 9 */) || + (code >= 0x41 /* A */ && code <= 0x5A /* Z */) || + (code >= 0x61 /* a */ && code <= 0x7A /* z */); + } + + // parse sequence of emphasis markers, + // "start" should point at a valid marker + function scanDelims(state, start) { + var pos = start, lastChar, nextChar, count, + can_open = true, + can_close = true, + max = state.posMax, + marker = state.src.charCodeAt(start); + + lastChar = start > 0 ? state.src.charCodeAt(start - 1) : -1; + + while (pos < max && state.src.charCodeAt(pos) === marker) { pos++; } + if (pos >= max) { can_open = false; } + count = pos - start; + + if (count >= 4) { + // sequence of four or more unescaped markers can't start/end an emphasis + can_open = can_close = false; + } else { + nextChar = pos < max ? state.src.charCodeAt(pos) : -1; + + // check whitespace conditions + if (nextChar === 0x20 || nextChar === 0x0A) { can_open = false; } + if (lastChar === 0x20 || lastChar === 0x0A) { can_close = false; } + + if (marker === 0x5F /* _ */) { + // check if we aren't inside the word + if (isAlphaNum(lastChar)) { can_open = false; } + if (isAlphaNum(nextChar)) { can_close = false; } + } + } + + return { + can_open: can_open, + can_close: can_close, + delims: count + }; + } + + function emphasis(state, silent) { + var startCount, + count, + found, + oldCount, + newCount, + stack, + res, + max = state.posMax, + start = state.pos, + marker = state.src.charCodeAt(start); + + if (marker !== 0x5F/* _ */ && marker !== 0x2A /* * */) { return false; } + if (silent) { return false; } // don't run any pairs in validation mode + + res = scanDelims(state, start); + startCount = res.delims; + if (!res.can_open) { + state.pos += startCount; + if (!silent) { state.pending += state.src.slice(start, state.pos); } + return true; + } + + if (state.level >= state.options.maxNesting) { return false; } + + state.pos = start + startCount; + stack = [ startCount ]; + + while (state.pos < max) { + if (state.src.charCodeAt(state.pos) === marker) { + res = scanDelims(state, state.pos); + count = res.delims; + if (res.can_close) { + oldCount = stack.pop(); + newCount = count; + + while (oldCount !== newCount) { + if (newCount < oldCount) { + stack.push(oldCount - newCount); + break; + } + + // assert(newCount > oldCount) + newCount -= oldCount; + + if (stack.length === 0) { break; } + state.pos += oldCount; + oldCount = stack.pop(); + } + + if (stack.length === 0) { + startCount = oldCount; + found = true; + break; + } + state.pos += count; + continue; + } + + if (res.can_open) { stack.push(count); } + state.pos += count; + continue; + } + + state.parser.skipToken(state); + } + + if (!found) { + // parser failed to find ending tag, so it's not valid emphasis + state.pos = start; + return false; + } + + // found! + state.posMax = state.pos; + state.pos = start + startCount; + + if (!silent) { + if (startCount === 2 || startCount === 3) { + state.push({ type: 'strong_open', level: state.level++ }); + } + if (startCount === 1 || startCount === 3) { + state.push({ type: 'em_open', level: state.level++ }); + } + + state.parser.tokenize(state); + + if (startCount === 1 || startCount === 3) { + state.push({ type: 'em_close', level: --state.level }); + } + if (startCount === 2 || startCount === 3) { + state.push({ type: 'strong_close', level: --state.level }); + } + } + + state.pos = state.posMax + startCount; + state.posMax = max; + return true; + } + + // Process ~subscript~ + + // same as UNESCAPE_MD_RE plus a space + var UNESCAPE_RE = /\\([ \\!"#$%&'()*+,.\/:;<=>?@[\]^_`{|}~-])/g; + + function sub(state, silent) { + var found, + content, + max = state.posMax, + start = state.pos; + + if (state.src.charCodeAt(start) !== 0x7E/* ~ */) { return false; } + if (silent) { return false; } // don't run any pairs in validation mode + if (start + 2 >= max) { return false; } + if (state.level >= state.options.maxNesting) { return false; } + + state.pos = start + 1; + + while (state.pos < max) { + if (state.src.charCodeAt(state.pos) === 0x7E/* ~ */) { + found = true; + break; + } + + state.parser.skipToken(state); + } + + if (!found || start + 1 === state.pos) { + state.pos = start; + return false; + } + + content = state.src.slice(start + 1, state.pos); + + // don't allow unescaped spaces/newlines inside + if (content.match(/(^|[^\\])(\\\\)*\s/)) { + state.pos = start; + return false; + } + + // found! + state.posMax = state.pos; + state.pos = start + 1; + + if (!silent) { + state.push({ + type: 'sub', + level: state.level, + content: content.replace(UNESCAPE_RE, '$1') + }); + } + + state.pos = state.posMax + 1; + state.posMax = max; + return true; + } + + // Process ^superscript^ + + // same as UNESCAPE_MD_RE plus a space + var UNESCAPE_RE$1 = /\\([ \\!"#$%&'()*+,.\/:;<=>?@[\]^_`{|}~-])/g; + + function sup(state, silent) { + var found, + content, + max = state.posMax, + start = state.pos; + + if (state.src.charCodeAt(start) !== 0x5E/* ^ */) { return false; } + if (silent) { return false; } // don't run any pairs in validation mode + if (start + 2 >= max) { return false; } + if (state.level >= state.options.maxNesting) { return false; } + + state.pos = start + 1; + + while (state.pos < max) { + if (state.src.charCodeAt(state.pos) === 0x5E/* ^ */) { + found = true; + break; + } + + state.parser.skipToken(state); + } + + if (!found || start + 1 === state.pos) { + state.pos = start; + return false; + } + + content = state.src.slice(start + 1, state.pos); + + // don't allow unescaped spaces/newlines inside + if (content.match(/(^|[^\\])(\\\\)*\s/)) { + state.pos = start; + return false; + } + + // found! + state.posMax = state.pos; + state.pos = start + 1; + + if (!silent) { + state.push({ + type: 'sup', + level: state.level, + content: content.replace(UNESCAPE_RE$1, '$1') + }); + } + + state.pos = state.posMax + 1; + state.posMax = max; + return true; + } + + // Process [links]( "stuff") + + + function links(state, silent) { + var labelStart, + labelEnd, + label, + href, + title, + pos, + ref, + code, + isImage = false, + oldPos = state.pos, + max = state.posMax, + start = state.pos, + marker = state.src.charCodeAt(start); + + if (marker === 0x21/* ! */) { + isImage = true; + marker = state.src.charCodeAt(++start); + } + + if (marker !== 0x5B/* [ */) { return false; } + if (state.level >= state.options.maxNesting) { return false; } + + labelStart = start + 1; + labelEnd = parseLinkLabel(state, start); + + // parser failed to find ']', so it's not a valid link + if (labelEnd < 0) { return false; } + + pos = labelEnd + 1; + if (pos < max && state.src.charCodeAt(pos) === 0x28/* ( */) { + // + // Inline link + // + + // [link]( "title" ) + // ^^ skipping these spaces + pos++; + for (; pos < max; pos++) { + code = state.src.charCodeAt(pos); + if (code !== 0x20 && code !== 0x0A) { break; } + } + if (pos >= max) { return false; } + + // [link]( "title" ) + // ^^^^^^ parsing link destination + start = pos; + if (parseLinkDestination(state, pos)) { + href = state.linkContent; + pos = state.pos; + } else { + href = ''; + } + + // [link]( "title" ) + // ^^ skipping these spaces + start = pos; + for (; pos < max; pos++) { + code = state.src.charCodeAt(pos); + if (code !== 0x20 && code !== 0x0A) { break; } + } + + // [link]( "title" ) + // ^^^^^^^ parsing link title + if (pos < max && start !== pos && parseLinkTitle(state, pos)) { + title = state.linkContent; + pos = state.pos; + + // [link]( "title" ) + // ^^ skipping these spaces + for (; pos < max; pos++) { + code = state.src.charCodeAt(pos); + if (code !== 0x20 && code !== 0x0A) { break; } + } + } else { + title = ''; + } + + if (pos >= max || state.src.charCodeAt(pos) !== 0x29/* ) */) { + state.pos = oldPos; + return false; + } + pos++; + } else { + // + // Link reference + // + + // do not allow nested reference links + if (state.linkLevel > 0) { return false; } + + // [foo] [bar] + // ^^ optional whitespace (can include newlines) + for (; pos < max; pos++) { + code = state.src.charCodeAt(pos); + if (code !== 0x20 && code !== 0x0A) { break; } + } + + if (pos < max && state.src.charCodeAt(pos) === 0x5B/* [ */) { + start = pos + 1; + pos = parseLinkLabel(state, pos); + if (pos >= 0) { + label = state.src.slice(start, pos++); + } else { + pos = start - 1; + } + } + + // covers label === '' and label === undefined + // (collapsed reference link and shortcut reference link respectively) + if (!label) { + if (typeof label === 'undefined') { + pos = labelEnd + 1; + } + label = state.src.slice(labelStart, labelEnd); + } + + ref = state.env.references[normalizeReference(label)]; + if (!ref) { + state.pos = oldPos; + return false; + } + href = ref.href; + title = ref.title; + } + + // + // We found the end of the link, and know for a fact it's a valid link; + // so all that's left to do is to call tokenizer. + // + if (!silent) { + state.pos = labelStart; + state.posMax = labelEnd; + + if (isImage) { + state.push({ + type: 'image', + src: href, + title: title, + alt: state.src.substr(labelStart, labelEnd - labelStart), + level: state.level + }); + } else { + state.push({ + type: 'link_open', + href: href, + title: title, + level: state.level++ + }); + state.linkLevel++; + state.parser.tokenize(state); + state.linkLevel--; + state.push({ type: 'link_close', level: --state.level }); + } + } + + state.pos = pos; + state.posMax = max; + return true; + } + + // Process inline footnotes (^[...]) + + + function footnote_inline(state, silent) { + var labelStart, + labelEnd, + footnoteId, + oldLength, + max = state.posMax, + start = state.pos; + + if (start + 2 >= max) { return false; } + if (state.src.charCodeAt(start) !== 0x5E/* ^ */) { return false; } + if (state.src.charCodeAt(start + 1) !== 0x5B/* [ */) { return false; } + if (state.level >= state.options.maxNesting) { return false; } + + labelStart = start + 2; + labelEnd = parseLinkLabel(state, start + 1); + + // parser failed to find ']', so it's not a valid note + if (labelEnd < 0) { return false; } + + // We found the end of the link, and know for a fact it's a valid link; + // so all that's left to do is to call tokenizer. + // + if (!silent) { + if (!state.env.footnotes) { state.env.footnotes = {}; } + if (!state.env.footnotes.list) { state.env.footnotes.list = []; } + footnoteId = state.env.footnotes.list.length; + + state.pos = labelStart; + state.posMax = labelEnd; + + state.push({ + type: 'footnote_ref', + id: footnoteId, + level: state.level + }); + state.linkLevel++; + oldLength = state.tokens.length; + state.parser.tokenize(state); + state.env.footnotes.list[footnoteId] = { tokens: state.tokens.splice(oldLength) }; + state.linkLevel--; + } + + state.pos = labelEnd + 1; + state.posMax = max; + return true; + } + + // Process footnote references ([^...]) + + function footnote_ref(state, silent) { + var label, + pos, + footnoteId, + footnoteSubId, + max = state.posMax, + start = state.pos; + + // should be at least 4 chars - "[^x]" + if (start + 3 > max) { return false; } + + if (!state.env.footnotes || !state.env.footnotes.refs) { return false; } + if (state.src.charCodeAt(start) !== 0x5B/* [ */) { return false; } + if (state.src.charCodeAt(start + 1) !== 0x5E/* ^ */) { return false; } + if (state.level >= state.options.maxNesting) { return false; } + + for (pos = start + 2; pos < max; pos++) { + if (state.src.charCodeAt(pos) === 0x20) { return false; } + if (state.src.charCodeAt(pos) === 0x0A) { return false; } + if (state.src.charCodeAt(pos) === 0x5D /* ] */) { + break; + } + } + + if (pos === start + 2) { return false; } // no empty footnote labels + if (pos >= max) { return false; } + pos++; + + label = state.src.slice(start + 2, pos - 1); + if (typeof state.env.footnotes.refs[':' + label] === 'undefined') { return false; } + + if (!silent) { + if (!state.env.footnotes.list) { state.env.footnotes.list = []; } + + if (state.env.footnotes.refs[':' + label] < 0) { + footnoteId = state.env.footnotes.list.length; + state.env.footnotes.list[footnoteId] = { label: label, count: 0 }; + state.env.footnotes.refs[':' + label] = footnoteId; + } else { + footnoteId = state.env.footnotes.refs[':' + label]; + } + + footnoteSubId = state.env.footnotes.list[footnoteId].count; + state.env.footnotes.list[footnoteId].count++; + + state.push({ + type: 'footnote_ref', + id: footnoteId, + subId: footnoteSubId, + level: state.level + }); + } + + state.pos = pos; + state.posMax = max; + return true; + } + + // List of valid url schemas, accorting to commonmark spec + // http://jgm.github.io/CommonMark/spec.html#autolinks + + var url_schemas = [ + 'coap', + 'doi', + 'javascript', + 'aaa', + 'aaas', + 'about', + 'acap', + 'cap', + 'cid', + 'crid', + 'data', + 'dav', + 'dict', + 'dns', + 'file', + 'ftp', + 'geo', + 'go', + 'gopher', + 'h323', + 'http', + 'https', + 'iax', + 'icap', + 'im', + 'imap', + 'info', + 'ipp', + 'iris', + 'iris.beep', + 'iris.xpc', + 'iris.xpcs', + 'iris.lwz', + 'ldap', + 'mailto', + 'mid', + 'msrp', + 'msrps', + 'mtqp', + 'mupdate', + 'news', + 'nfs', + 'ni', + 'nih', + 'nntp', + 'opaquelocktoken', + 'pop', + 'pres', + 'rtsp', + 'service', + 'session', + 'shttp', + 'sieve', + 'sip', + 'sips', + 'sms', + 'snmp', + 'soap.beep', + 'soap.beeps', + 'tag', + 'tel', + 'telnet', + 'tftp', + 'thismessage', + 'tn3270', + 'tip', + 'tv', + 'urn', + 'vemmi', + 'ws', + 'wss', + 'xcon', + 'xcon-userid', + 'xmlrpc.beep', + 'xmlrpc.beeps', + 'xmpp', + 'z39.50r', + 'z39.50s', + 'adiumxtra', + 'afp', + 'afs', + 'aim', + 'apt', + 'attachment', + 'aw', + 'beshare', + 'bitcoin', + 'bolo', + 'callto', + 'chrome', + 'chrome-extension', + 'com-eventbrite-attendee', + 'content', + 'cvs', + 'dlna-playsingle', + 'dlna-playcontainer', + 'dtn', + 'dvb', + 'ed2k', + 'facetime', + 'feed', + 'finger', + 'fish', + 'gg', + 'git', + 'gizmoproject', + 'gtalk', + 'hcp', + 'icon', + 'ipn', + 'irc', + 'irc6', + 'ircs', + 'itms', + 'jar', + 'jms', + 'keyparc', + 'lastfm', + 'ldaps', + 'magnet', + 'maps', + 'market', + 'message', + 'mms', + 'ms-help', + 'msnim', + 'mumble', + 'mvn', + 'notes', + 'oid', + 'palm', + 'paparazzi', + 'platform', + 'proxy', + 'psyc', + 'query', + 'res', + 'resource', + 'rmi', + 'rsync', + 'rtmp', + 'secondlife', + 'sftp', + 'sgn', + 'skype', + 'smb', + 'soldat', + 'spotify', + 'ssh', + 'steam', + 'svn', + 'teamspeak', + 'things', + 'udp', + 'unreal', + 'ut2004', + 'ventrilo', + 'view-source', + 'webcal', + 'wtai', + 'wyciwyg', + 'xfire', + 'xri', + 'ymsgr' + ]; + + // Process autolinks '' + + + /*eslint max-len:0*/ + var EMAIL_RE = /^<([a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)>/; + var AUTOLINK_RE = /^<([a-zA-Z.\-]{1,25}):([^<>\x00-\x20]*)>/; + + + function autolink(state, silent) { + var tail, linkMatch, emailMatch, url, fullUrl, pos = state.pos; + + if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false; } + + tail = state.src.slice(pos); + + if (tail.indexOf('>') < 0) { return false; } + + linkMatch = tail.match(AUTOLINK_RE); + + if (linkMatch) { + if (url_schemas.indexOf(linkMatch[1].toLowerCase()) < 0) { return false; } + + url = linkMatch[0].slice(1, -1); + fullUrl = normalizeLink(url); + if (!state.parser.validateLink(url)) { return false; } + + if (!silent) { + state.push({ + type: 'link_open', + href: fullUrl, + level: state.level + }); + state.push({ + type: 'text', + content: url, + level: state.level + 1 + }); + state.push({ type: 'link_close', level: state.level }); + } + + state.pos += linkMatch[0].length; + return true; + } + + emailMatch = tail.match(EMAIL_RE); + + if (emailMatch) { + + url = emailMatch[0].slice(1, -1); + + fullUrl = normalizeLink('mailto:' + url); + if (!state.parser.validateLink(fullUrl)) { return false; } + + if (!silent) { + state.push({ + type: 'link_open', + href: fullUrl, + level: state.level + }); + state.push({ + type: 'text', + content: url, + level: state.level + 1 + }); + state.push({ type: 'link_close', level: state.level }); + } + + state.pos += emailMatch[0].length; + return true; + } + + return false; + } + + // Regexps to match html elements + + function replace$1(regex, options) { + regex = regex.source; + options = options || ''; + + return function self(name, val) { + if (!name) { + return new RegExp(regex, options); + } + val = val.source || val; + regex = regex.replace(name, val); + return self; + }; + } + + + var attr_name = /[a-zA-Z_:][a-zA-Z0-9:._-]*/; + + var unquoted = /[^"'=<>`\x00-\x20]+/; + var single_quoted = /'[^']*'/; + var double_quoted = /"[^"]*"/; + + /*eslint no-spaced-func:0*/ + var attr_value = replace$1(/(?:unquoted|single_quoted|double_quoted)/) + ('unquoted', unquoted) + ('single_quoted', single_quoted) + ('double_quoted', double_quoted) + (); + + var attribute = replace$1(/(?:\s+attr_name(?:\s*=\s*attr_value)?)/) + ('attr_name', attr_name) + ('attr_value', attr_value) + (); + + var open_tag = replace$1(/<[A-Za-z][A-Za-z0-9]*attribute*\s*\/?>/) + ('attribute', attribute) + (); + + var close_tag = /<\/[A-Za-z][A-Za-z0-9]*\s*>/; + var comment = /|/; + var processing = /<[?].*?[?]>/; + var declaration = /]*>/; + var cdata = //; + + var HTML_TAG_RE = replace$1(/^(?:open_tag|close_tag|comment|processing|declaration|cdata)/) + ('open_tag', open_tag) + ('close_tag', close_tag) + ('comment', comment) + ('processing', processing) + ('declaration', declaration) + ('cdata', cdata) + (); + + // Process html tags + + + function isLetter$2(ch) { + /*eslint no-bitwise:0*/ + var lc = ch | 0x20; // to lower case + return (lc >= 0x61/* a */) && (lc <= 0x7a/* z */); + } + + + function htmltag(state, silent) { + var ch, match, max, pos = state.pos; + + if (!state.options.html) { return false; } + + // Check start + max = state.posMax; + if (state.src.charCodeAt(pos) !== 0x3C/* < */ || + pos + 2 >= max) { + return false; + } + + // Quick fail on second char + ch = state.src.charCodeAt(pos + 1); + if (ch !== 0x21/* ! */ && + ch !== 0x3F/* ? */ && + ch !== 0x2F/* / */ && + !isLetter$2(ch)) { + return false; + } + + match = state.src.slice(pos).match(HTML_TAG_RE); + if (!match) { return false; } + + if (!silent) { + state.push({ + type: 'htmltag', + content: state.src.slice(pos, pos + match[0].length), + level: state.level + }); + } + state.pos += match[0].length; + return true; + } + + // Process html entity - {, ¯, ", ... + + + var DIGITAL_RE = /^&#((?:x[a-f0-9]{1,8}|[0-9]{1,8}));/i; + var NAMED_RE = /^&([a-z][a-z0-9]{1,31});/i; + + + function entity(state, silent) { + var ch, code, match, pos = state.pos, max = state.posMax; + + if (state.src.charCodeAt(pos) !== 0x26/* & */) { return false; } + + if (pos + 1 < max) { + ch = state.src.charCodeAt(pos + 1); + + if (ch === 0x23 /* # */) { + match = state.src.slice(pos).match(DIGITAL_RE); + if (match) { + if (!silent) { + code = match[1][0].toLowerCase() === 'x' ? parseInt(match[1].slice(1), 16) : parseInt(match[1], 10); + state.pending += isValidEntityCode(code) ? fromCodePoint(code) : fromCodePoint(0xFFFD); + } + state.pos += match[0].length; + return true; + } + } else { + match = state.src.slice(pos).match(NAMED_RE); + if (match) { + var decoded = decodeEntity(match[1]); + if (match[1] !== decoded) { + if (!silent) { state.pending += decoded; } + state.pos += match[0].length; + return true; + } + } + } + } + + if (!silent) { state.pending += '&'; } + state.pos++; + return true; + } + + /** + * Inline Parser `rules` + */ + + var _rules$2 = [ + [ 'text', text ], + [ 'newline', newline ], + [ 'escape', escape ], + [ 'backticks', backticks ], + [ 'del', del ], + [ 'ins', ins ], + [ 'mark', mark ], + [ 'emphasis', emphasis ], + [ 'sub', sub ], + [ 'sup', sup ], + [ 'links', links ], + [ 'footnote_inline', footnote_inline ], + [ 'footnote_ref', footnote_ref ], + [ 'autolink', autolink ], + [ 'htmltag', htmltag ], + [ 'entity', entity ] + ]; + + /** + * Inline Parser class. Note that link validation is stricter + * in Remarkable than what is specified by CommonMark. If you + * want to change this you can use a custom validator. + * + * @api private + */ + + function ParserInline() { + this.ruler = new Ruler(); + for (var i = 0; i < _rules$2.length; i++) { + this.ruler.push(_rules$2[i][0], _rules$2[i][1]); + } + + // Can be overridden with a custom validator + this.validateLink = validateLink; + } + + /** + * Skip a single token by running all rules in validation mode. + * Returns `true` if any rule reports success. + * + * @param {Object} `state` + * @api privage + */ + + ParserInline.prototype.skipToken = function (state) { + var rules = this.ruler.getRules(''); + var len = rules.length; + var pos = state.pos; + var i, cached_pos; + + if ((cached_pos = state.cacheGet(pos)) > 0) { + state.pos = cached_pos; + return; + } + + for (i = 0; i < len; i++) { + if (rules[i](state, true)) { + state.cacheSet(pos, state.pos); + return; + } + } + + state.pos++; + state.cacheSet(pos, state.pos); + }; + + /** + * Generate tokens for the given input range. + * + * @param {Object} `state` + * @api private + */ + + ParserInline.prototype.tokenize = function (state) { + var rules = this.ruler.getRules(''); + var len = rules.length; + var end = state.posMax; + var ok, i; + + while (state.pos < end) { + + // Try all possible rules. + // On success, the rule should: + // + // - update `state.pos` + // - update `state.tokens` + // - return true + for (i = 0; i < len; i++) { + ok = rules[i](state, false); + + if (ok) { + break; + } + } + + if (ok) { + if (state.pos >= end) { break; } + continue; + } + + state.pending += state.src[state.pos++]; + } + + if (state.pending) { + state.pushPending(); + } + }; + + /** + * Parse the given input string. + * + * @param {String} `str` + * @param {Object} `options` + * @param {Object} `env` + * @param {Array} `outTokens` + * @api private + */ + + ParserInline.prototype.parse = function (str, options, env, outTokens) { + var state = new StateInline(str, this, options, env, outTokens); + this.tokenize(state); + }; + + /** + * Validate the given `url` by checking for bad protocols. + * + * @param {String} `url` + * @return {Boolean} + */ + + function validateLink(url) { + var BAD_PROTOCOLS = [ 'vbscript', 'javascript', 'file', 'data' ]; + var str = url.trim().toLowerCase(); + // Care about digital entities "javascript:alert(1)" + str = replaceEntities(str); + if (str.indexOf(':') !== -1 && BAD_PROTOCOLS.indexOf(str.split(':')[0]) !== -1) { + return false; + } + return true; + } + + // Remarkable default options + + var defaultConfig = { + options: { + html: false, // Enable HTML tags in source + xhtmlOut: false, // Use '/' to close single tags (
    ) + breaks: false, // Convert '\n' in paragraphs into
    + langPrefix: 'language-', // CSS language prefix for fenced blocks + linkTarget: '', // set target to open link in + + // Enable some language-neutral replacements + quotes beautification + typographer: false, + + // Double + single quotes replacement pairs, when typographer enabled, + // and smartquotes on. Set doubles to '«»' for Russian, '„“' for German. + quotes: '“”‘’', + + // Highlighter function. Should return escaped HTML, + // or '' if input not changed + // + // function (/*str, lang*/) { return ''; } + // + highlight: null, + + maxNesting: 20 // Internal protection, recursion limit + }, + + components: { + + core: { + rules: [ + 'block', + 'inline', + 'references', + 'replacements', + 'smartquotes', + 'references', + 'abbr2', + 'footnote_tail' + ] + }, + + block: { + rules: [ + 'blockquote', + 'code', + 'fences', + 'footnote', + 'heading', + 'hr', + 'htmlblock', + 'lheading', + 'list', + 'paragraph', + 'table' + ] + }, + + inline: { + rules: [ + 'autolink', + 'backticks', + 'del', + 'emphasis', + 'entity', + 'escape', + 'footnote_ref', + 'htmltag', + 'links', + 'newline', + 'text' + ] + } + } + }; + + // Remarkable default options + + var fullConfig = { + options: { + html: false, // Enable HTML tags in source + xhtmlOut: false, // Use '/' to close single tags (
    ) + breaks: false, // Convert '\n' in paragraphs into
    + langPrefix: 'language-', // CSS language prefix for fenced blocks + linkTarget: '', // set target to open link in + + // Enable some language-neutral replacements + quotes beautification + typographer: false, + + // Double + single quotes replacement pairs, when typographer enabled, + // and smartquotes on. Set doubles to '«»' for Russian, '„“' for German. + quotes: '“”‘’', + + // Highlighter function. Should return escaped HTML, + // or '' if input not changed + // + // function (/*str, lang*/) { return ''; } + // + highlight: null, + + maxNesting: 20 // Internal protection, recursion limit + }, + + components: { + // Don't restrict core/block/inline rules + core: {}, + block: {}, + inline: {} + } + }; + + // Commonmark default options + + var commonmarkConfig = { + options: { + html: true, // Enable HTML tags in source + xhtmlOut: true, // Use '/' to close single tags (
    ) + breaks: false, // Convert '\n' in paragraphs into
    + langPrefix: 'language-', // CSS language prefix for fenced blocks + linkTarget: '', // set target to open link in + + // Enable some language-neutral replacements + quotes beautification + typographer: false, + + // Double + single quotes replacement pairs, when typographer enabled, + // and smartquotes on. Set doubles to '«»' for Russian, '„“' for German. + quotes: '“”‘’', + + // Highlighter function. Should return escaped HTML, + // or '' if input not changed + // + // function (/*str, lang*/) { return ''; } + // + highlight: null, + + maxNesting: 20 // Internal protection, recursion limit + }, + + components: { + + core: { + rules: [ + 'block', + 'inline', + 'references', + 'abbr2' + ] + }, + + block: { + rules: [ + 'blockquote', + 'code', + 'fences', + 'heading', + 'hr', + 'htmlblock', + 'lheading', + 'list', + 'paragraph' + ] + }, + + inline: { + rules: [ + 'autolink', + 'backticks', + 'emphasis', + 'entity', + 'escape', + 'htmltag', + 'links', + 'newline', + 'text' + ] + } + } + }; + + /** + * Preset configs + */ + + var config = { + 'default': defaultConfig, + 'full': fullConfig, + 'commonmark': commonmarkConfig + }; + + /** + * The `StateCore` class manages state. + * + * @param {Object} `instance` Remarkable instance + * @param {String} `str` Markdown string + * @param {Object} `env` + */ + + function StateCore(instance, str, env) { + this.src = str; + this.env = env; + this.options = instance.options; + this.tokens = []; + this.inlineMode = false; + + this.inline = instance.inline; + this.block = instance.block; + this.renderer = instance.renderer; + this.typographer = instance.typographer; + } + + /** + * The main `Remarkable` class. Create an instance of + * `Remarkable` with a `preset` and/or `options`. + * + * @param {String} `preset` If no preset is given, `default` is used. + * @param {Object} `options` + */ + + function Remarkable(preset, options) { + if (typeof preset !== 'string') { + options = preset; + preset = 'default'; + } + + if (options && options.linkify != null) { + console.warn( + 'linkify option is removed. Use linkify plugin instead:\n\n' + + 'import Remarkable from \'remarkable\';\n' + + 'import linkify from \'remarkable/linkify\';\n' + + 'new Remarkable().use(linkify)\n' + ); + } + + this.inline = new ParserInline(); + this.block = new ParserBlock(); + this.core = new Core(); + this.renderer = new Renderer(); + this.ruler = new Ruler(); + + this.options = {}; + this.configure(config[preset]); + this.set(options || {}); + } + + /** + * Set options as an alternative to passing them + * to the constructor. + * + * ```js + * md.set({typographer: true}); + * ``` + * @param {Object} `options` + * @api public + */ + + Remarkable.prototype.set = function (options) { + assign(this.options, options); + }; + + /** + * Batch loader for components rules states, and options + * + * @param {Object} `presets` + */ + + Remarkable.prototype.configure = function (presets) { + var self = this; + + if (!presets) { throw new Error('Wrong `remarkable` preset, check name/content'); } + if (presets.options) { self.set(presets.options); } + if (presets.components) { + Object.keys(presets.components).forEach(function (name) { + if (presets.components[name].rules) { + self[name].ruler.enable(presets.components[name].rules, true); + } + }); + } + }; + + /** + * Use a plugin. + * + * ```js + * var md = new Remarkable(); + * + * md.use(plugin1) + * .use(plugin2, opts) + * .use(plugin3); + * ``` + * + * @param {Function} `plugin` + * @param {Object} `options` + * @return {Object} `Remarkable` for chaining + */ + + Remarkable.prototype.use = function (plugin, options) { + plugin(this, options); + return this; + }; + + + /** + * Parse the input `string` and return a tokens array. + * Modifies `env` with definitions data. + * + * @param {String} `string` + * @param {Object} `env` + * @return {Array} Array of tokens + */ + + Remarkable.prototype.parse = function (str, env) { + var state = new StateCore(this, str, env); + this.core.process(state); + return state.tokens; + }; + + /** + * The main `.render()` method that does all the magic :) + * + * @param {String} `string` + * @param {Object} `env` + * @return {String} Rendered HTML. + */ + + Remarkable.prototype.render = function (str, env) { + env = env || {}; + return this.renderer.render(this.parse(str, env), this.options, env); + }; + + /** + * Parse the given content `string` as a single string. + * + * @param {String} `string` + * @param {Object} `env` + * @return {Array} Array of tokens + */ + + Remarkable.prototype.parseInline = function (str, env) { + var state = new StateCore(this, str, env); + state.inlineMode = true; + this.core.process(state); + return state.tokens; + }; + + /** + * Render a single content `string`, without wrapping it + * to paragraphs + * + * @param {String} `str` + * @param {Object} `env` + * @return {String} + */ + + Remarkable.prototype.renderInline = function (str, env) { + env = env || {}; + return this.renderer.render(this.parseInline(str, env), this.options, env); + }; + + var index_browser = /*#__PURE__*/Object.freeze({ + __proto__: null, + Remarkable: Remarkable, + utils: utils + }); + + var base = createCommonjsModule(function (module, exports) { + + exports.__esModule = true; + exports.getId = getId; + exports.noop = noop; + exports.walkTree = walkTree; + exports.arrayFrom = arrayFrom; + exports.flatMap = flatMap; + exports.addClass = addClass; + exports.childSelector = childSelector; + const uniqId = Math.random().toString(36).slice(2, 8); + let globalIndex = 0; + + function getId() { + globalIndex += 1; + return `mm-${uniqId}-${globalIndex}`; + } + + function noop() {// noop + } + + function walkTree(tree, callback, key = 'c') { + const walk = (item, parent) => callback(item, () => { + var _item$key; + + (_item$key = item[key]) == null ? void 0 : _item$key.forEach(child => { + walk(child, item); + }); + }, parent); + + walk(tree); + } + + function arrayFrom(arrayLike) { + if (Array.from) return Array.from(arrayLike); + const array = []; + + for (let i = 0; i < arrayLike.length; i += 1) { + array.push(arrayLike[i]); + } + + return array; + } + + function flatMap(arrayLike, callback) { + if (arrayLike.flatMap) return arrayLike.flatMap(callback); + const array = []; + + for (let i = 0; i < arrayLike.length; i += 1) { + const result = callback(arrayLike[i], i, arrayLike); + if (Array.isArray(result)) array.push(...result);else array.push(result); + } + + return array; + } + + function addClass(className, ...rest) { + const classList = (className || '').split(' ').filter(Boolean); + rest.forEach(item => { + if (item && classList.indexOf(item) < 0) classList.push(item); + }); + return classList.join(' '); + } + + function childSelector(filter) { + if (typeof filter === 'string') { + const tagName = filter; + + filter = el => el.tagName === tagName; + } + + const filterFn = filter; + return function selector() { + let nodes = arrayFrom(this.childNodes); + if (filterFn) nodes = nodes.filter(node => filterFn(node)); + return nodes; + }; + } + }); + + var html = createCommonjsModule(function (module, exports) { + + exports.__esModule = true; + exports.escapeHtml = escapeHtml; + exports.escapeScript = escapeScript; + exports.htmlOpen = htmlOpen; + exports.htmlClose = htmlClose; + exports.wrapHtml = wrapHtml; + exports.wrapStyle = wrapStyle; + + function escapeHtml(html) { + return html.replace(/[&<"]/g, m => ({ + '&': '&', + '<': '<', + '"': '"' + })[m]); + } + + function escapeScript(content) { + return content.replace(/<(\/script>)/g, '\\x3c$2'); + } + + function htmlOpen(tagName, attrs) { + const attrStr = attrs ? Object.entries(attrs).map(([key, value]) => { + if (value == null || value === false) return; + key = ` ${escapeHtml(key)}`; + if (value === true) return key; + return `${key}="${escapeHtml(value)}"`; + }).filter(Boolean).join('') : ''; + return `<${tagName}${attrStr}>`; + } + + function htmlClose(tagName) { + return ``; + } + + function wrapHtml(tagName, content, attrs) { + if (content == null) return htmlOpen(tagName, attrs); + return htmlOpen(tagName, attrs) + (content || '') + htmlClose(tagName); + } + + function wrapStyle(text, style) { + if (style.code) text = wrapHtml('code', text); + if (style.del) text = wrapHtml('del', text); + if (style.em) text = wrapHtml('em', text); + if (style.strong) text = wrapHtml('strong', text); + return text; + } + }); + + var loader = createCommonjsModule(function (module, exports) { + + exports.__esModule = true; + exports.buildCode = buildCode; + exports.memoize = memoize; + exports.loadJS = loadJS; + exports.loadCSS = loadCSS; + exports.initializePlugins = initializePlugins; + exports.persistJS = persistJS; + exports.persistCSS = persistCSS; + + + + function buildCode(fn, ...args) { + const params = args.map(arg => { + if (typeof arg === 'function') return arg.toString(); + return JSON.stringify(arg != null ? arg : null); + }).join(','); + return `(${fn.toString()})(${params})`; + } + + function memoize(fn) { + const cache = {}; + return function memoized(...args) { + const key = `${args[0]}`; + let data = cache[key]; + + if (!data) { + data = { + value: fn(...args) + }; + cache[key] = data; + } + + return data.value; + }; + } + + function createElement(tagName, props, attrs) { + const el = document.createElement(tagName); + + if (props) { + Object.entries(props).forEach(([key, value]) => { + el[key] = value; + }); + } + + if (attrs) { + Object.entries(attrs).forEach(([key, value]) => { + el.setAttribute(key, value); + }); + } + + return el; + } + + const memoizedPreloadJS = memoize(url => { + document.head.append(createElement('link', { + rel: 'preload', + as: 'script', + href: url + })); + }); + + function loadJSItem(item, context) { + if (item.type === 'script') { + return new Promise((resolve, reject) => { + document.head.append(createElement('script', Object.assign(Object.assign({}, item.data), {}, { + onload: resolve, + onerror: reject + }))); + }); + } else if (item.type === 'iife') { + const { + fn, + getParams + } = item.data; + fn(...((getParams == null ? void 0 : getParams(context)) || [])); + } + } + + function loadCSSItem(item) { + if (item.type === 'style') { + document.head.append(createElement('style', { + textContent: item.data + })); + } else if (item.type === 'stylesheet') { + document.head.append(createElement('link', Object.assign({ + rel: 'stylesheet' + }, item.data))); + } + } + + async function loadJS(items, options) { + const needPreload = items.filter(item => item.type === 'script'); + if (needPreload.length > 1) needPreload.forEach(item => memoizedPreloadJS(item.data.src)); + + for (const item of items) { + await loadJSItem(item, options); + } + } + + function loadCSS(items) { + for (const item of items) { + loadCSSItem(item); + } + } + + async function initializePlugins(Markmap, plugins, options) { + options = Object.assign({}, options); + await Promise.all(plugins.map(plugin => { + loadCSS(plugin.styles); + return loadJS(plugin.scripts, options); + })); + + for (const { + initialize + } of plugins) { + if (initialize) initialize(Markmap, options); + } + } + + function persistJS(items, context) { + return items.map(item => { + if (item.type === 'script') return (0, html.wrapHtml)('script', '', item.data); + + if (item.type === 'iife') { + const { + fn, + getParams + } = item.data; + return (0, html.wrapHtml)('script', (0, html.escapeScript)(buildCode(fn, ...((getParams == null ? void 0 : getParams(context)) || [])))); + } + }); + } + + function persistCSS(items) { + return items.map(item => { + if (item.type === 'stylesheet') { + return (0, html.wrapHtml)('link', null, Object.assign({ + rel: 'stylesheet' + }, item.data)); + } + /* else if (item.type === 'style') */ + + + return (0, html.wrapHtml)('style', item.data); + }); + } + }); + + var util = createCommonjsModule(function (module, exports) { + + exports.__esModule = true; + + + + Object.keys(base).forEach(function (key) { + if (key === "default" || key === "__esModule") return; + exports[key] = base[key]; + }); + + + + Object.keys(html).forEach(function (key) { + if (key === "default" || key === "__esModule") return; + exports[key] = html[key]; + }); + + + + Object.keys(loader).forEach(function (key) { + if (key === "default" || key === "__esModule") return; + exports[key] = loader[key]; + }); + }); + + var transform_1 = createCommonjsModule(function (module, exports) { + + exports.__esModule = true; + exports.buildTree = buildTree; + exports.transform = transform; + + + + + + const md = new index_browser.Remarkable(); + md.block.ruler.enable(['deflist']); + + function extractInline(token) { + const html = []; + let style = {}; + + for (const child of token.children) { + if (child.type === 'text') { + html.push((0, util.wrapStyle)((0, util.escapeHtml)(child.content), style)); + } else if (child.type === 'code') { + html.push((0, util.wrapHtml)('code', (0, util.wrapStyle)((0, util.escapeHtml)(child.content), style))); + } else if (child.type === 'softbreak') { + html.push('
    '); + } else if (child.type.endsWith('_open')) { + const type = child.type.slice(0, -5); + + if (type === 'link') { + html.push((0, util.htmlOpen)('a', { + href: child.href, + title: child.title, + target: '_blank', + rel: 'noopener noreferrer' + })); + } else { + style = Object.assign(Object.assign({}, style), {}, { + [type]: true + }); + } + } else if (child.type.endsWith('_close')) { + const type = child.type.slice(0, -6); + + if (type === 'link') { + html.push((0, util.htmlClose)('a')); + } else { + style = Object.assign(Object.assign({}, style), {}, { + [type]: false + }); + } + } + } + + return html.join(''); + } + + function cleanNode(node, depth = 0) { + if (node.t === 'heading') { + // drop all paragraphs + node.c = node.c.filter(item => item.t !== 'paragraph'); + } else if (node.t === 'list_item') { + var _node$p; + + // keep first paragraph as content of list_item, drop others + node.c = node.c.filter(item => { + if (['paragraph', 'fence'].includes(item.t)) { + if (!node.v) node.v = item.v; + return false; + } + + return true; + }); + + if (((_node$p = node.p) == null ? void 0 : _node$p.index) != null) { + node.v = `${node.p.index}. ${node.v}`; + } + } else if (node.t === 'ordered_list') { + var _node$p$start, _node$p2; + + let index = (_node$p$start = (_node$p2 = node.p) == null ? void 0 : _node$p2.start) != null ? _node$p$start : 1; + node.c.forEach(item => { + if (item.t === 'list_item') { + item.p = Object.assign(Object.assign({}, item.p), {}, { + index: index + }); + index += 1; + } + }); + } + + if (node.c.length === 0) { + delete node.c; + } else { + if (node.c.length === 1 && !node.c[0].v) { + node.c = node.c[0].c; + } + + node.c.forEach(child => cleanNode(child, depth + 1)); + } + + node.d = depth; + delete node.p; + } + + function buildTree(tokens) { + // TODO deal with
    + const root = { + t: 'root', + d: 0, + v: '', + c: [] + }; + const stack = [root]; + let depth = 0; + + for (const token of tokens) { + let current = stack[stack.length - 1]; + + if (token.type.endsWith('_open')) { + const type = token.type.slice(0, -5); + const payload = {}; + + if (type === 'heading') { + depth = token.hLevel; + + while (((_current = current) == null ? void 0 : _current.d) >= depth) { + var _current; + + stack.pop(); + current = stack[stack.length - 1]; + } + } else { + var _current2; + + depth = Math.max(depth, ((_current2 = current) == null ? void 0 : _current2.d) || 0) + 1; + + if (type === 'ordered_list') { + payload.start = token.order; + } + } + + const item = { + t: type, + d: depth, + p: payload, + v: '', + c: [] + }; + current.c.push(item); + stack.push(item); + } else if (!current) { + continue; + } else if (token.type === `${current.t}_close`) { + if (current.t === 'heading') { + depth = current.d; + } else { + stack.pop(); + depth = 0; + } + } else if (token.type === 'inline') { + current.v = `${current.v || ''}${extractInline(token)}`; + } else if (token.type === 'fence') { + current.c.push({ + t: token.type, + d: depth + 1, + v: `
    ${(0, util.escapeHtml)(token.content)}
    `, + c: [] + }); + } + } + + return root; + } + + function transform(content) { + var _root$c; + + const tokens = md.parse(content || '', {}); + let root = buildTree(tokens); + cleanNode(root); + if (((_root$c = root.c) == null ? void 0 : _root$c.length) === 1) root = root.c[0]; + return root; + } + }); + + var transform = /*@__PURE__*/unwrapExports(transform_1); + + return transform; + +}))); diff --git a/www/code/markmap/markmap-lib.view.bundle.js b/www/code/markmap/markmap-lib.view.bundle.js new file mode 100644 index 000000000..0663de23c --- /dev/null +++ b/www/code/markmap/markmap-lib.view.bundle.js @@ -0,0 +1,19876 @@ +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : + typeof define === 'function' && define.amd ? define(factory) : + (global = global || self, global.view = factory()); +}(this, (function () { 'use strict'; + + function unwrapExports (x) { + return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x; + } + + function createCommonjsModule(fn, basedir, module) { + return module = { + path: basedir, + exports: {}, + require: function (path, base) { + return commonjsRequire(path, (base === undefined || base === null) ? module.path : base); + } + }, fn(module, module.exports), module.exports; + } + + function commonjsRequire () { + throw new Error('Dynamic requires are not currently supported by @rollup/plugin-commonjs'); + } + + var _typeof_1 = createCommonjsModule(function (module) { + function _typeof(obj) { + "@babel/helpers - typeof"; + + if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { + module.exports = _typeof = function _typeof(obj) { + return typeof obj; + }; + } else { + module.exports = _typeof = function _typeof(obj) { + return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; + }; + } + + return _typeof(obj); + } + + module.exports = _typeof; + }); + + var interopRequireWildcard = createCommonjsModule(function (module) { + function _getRequireWildcardCache() { + if (typeof WeakMap !== "function") return null; + var cache = new WeakMap(); + + _getRequireWildcardCache = function _getRequireWildcardCache() { + return cache; + }; + + return cache; + } + + function _interopRequireWildcard(obj) { + if (obj && obj.__esModule) { + return obj; + } + + if (obj === null || _typeof_1(obj) !== "object" && typeof obj !== "function") { + return { + "default": obj + }; + } + + var cache = _getRequireWildcardCache(); + + if (cache && cache.has(obj)) { + return cache.get(obj); + } + + var newObj = {}; + var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; + + for (var key in obj) { + if (Object.prototype.hasOwnProperty.call(obj, key)) { + var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; + + if (desc && (desc.get || desc.set)) { + Object.defineProperty(newObj, key, desc); + } else { + newObj[key] = obj[key]; + } + } + } + + newObj["default"] = obj; + + if (cache) { + cache.set(obj, newObj); + } + + return newObj; + } + + module.exports = _interopRequireWildcard; + }); + + var version = "5.16.0"; + + function ascending(a, b) { + return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN; + } + + function bisector(compare) { + if (compare.length === 1) compare = ascendingComparator(compare); + return { + left: function(a, x, lo, hi) { + if (lo == null) lo = 0; + if (hi == null) hi = a.length; + while (lo < hi) { + var mid = lo + hi >>> 1; + if (compare(a[mid], x) < 0) lo = mid + 1; + else hi = mid; + } + return lo; + }, + right: function(a, x, lo, hi) { + if (lo == null) lo = 0; + if (hi == null) hi = a.length; + while (lo < hi) { + var mid = lo + hi >>> 1; + if (compare(a[mid], x) > 0) hi = mid; + else lo = mid + 1; + } + return lo; + } + }; + } + + function ascendingComparator(f) { + return function(d, x) { + return ascending(f(d), x); + }; + } + + var ascendingBisect = bisector(ascending); + var bisectRight = ascendingBisect.right; + var bisectLeft = ascendingBisect.left; + + function pairs(array, f) { + if (f == null) f = pair; + var i = 0, n = array.length - 1, p = array[0], pairs = new Array(n < 0 ? 0 : n); + while (i < n) pairs[i] = f(p, p = array[++i]); + return pairs; + } + + function pair(a, b) { + return [a, b]; + } + + function cross(values0, values1, reduce) { + var n0 = values0.length, + n1 = values1.length, + values = new Array(n0 * n1), + i0, + i1, + i, + value0; + + if (reduce == null) reduce = pair; + + for (i0 = i = 0; i0 < n0; ++i0) { + for (value0 = values0[i0], i1 = 0; i1 < n1; ++i1, ++i) { + values[i] = reduce(value0, values1[i1]); + } + } + + return values; + } + + function descending(a, b) { + return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN; + } + + function number(x) { + return x === null ? NaN : +x; + } + + function variance(values, valueof) { + var n = values.length, + m = 0, + i = -1, + mean = 0, + value, + delta, + sum = 0; + + if (valueof == null) { + while (++i < n) { + if (!isNaN(value = number(values[i]))) { + delta = value - mean; + mean += delta / ++m; + sum += delta * (value - mean); + } + } + } + + else { + while (++i < n) { + if (!isNaN(value = number(valueof(values[i], i, values)))) { + delta = value - mean; + mean += delta / ++m; + sum += delta * (value - mean); + } + } + } + + if (m > 1) return sum / (m - 1); + } + + function deviation(array, f) { + var v = variance(array, f); + return v ? Math.sqrt(v) : v; + } + + function extent(values, valueof) { + var n = values.length, + i = -1, + value, + min, + max; + + if (valueof == null) { + while (++i < n) { // Find the first comparable value. + if ((value = values[i]) != null && value >= value) { + min = max = value; + while (++i < n) { // Compare the remaining values. + if ((value = values[i]) != null) { + if (min > value) min = value; + if (max < value) max = value; + } + } + } + } + } + + else { + while (++i < n) { // Find the first comparable value. + if ((value = valueof(values[i], i, values)) != null && value >= value) { + min = max = value; + while (++i < n) { // Compare the remaining values. + if ((value = valueof(values[i], i, values)) != null) { + if (min > value) min = value; + if (max < value) max = value; + } + } + } + } + } + + return [min, max]; + } + + var array = Array.prototype; + + var slice = array.slice; + var map = array.map; + + function constant(x) { + return function() { + return x; + }; + } + + function identity(x) { + return x; + } + + function sequence(start, stop, step) { + start = +start, stop = +stop, step = (n = arguments.length) < 2 ? (stop = start, start = 0, 1) : n < 3 ? 1 : +step; + + var i = -1, + n = Math.max(0, Math.ceil((stop - start) / step)) | 0, + range = new Array(n); + + while (++i < n) { + range[i] = start + i * step; + } + + return range; + } + + var e10 = Math.sqrt(50), + e5 = Math.sqrt(10), + e2 = Math.sqrt(2); + + function ticks(start, stop, count) { + var reverse, + i = -1, + n, + ticks, + step; + + stop = +stop, start = +start, count = +count; + if (start === stop && count > 0) return [start]; + if (reverse = stop < start) n = start, start = stop, stop = n; + if ((step = tickIncrement(start, stop, count)) === 0 || !isFinite(step)) return []; + + if (step > 0) { + start = Math.ceil(start / step); + stop = Math.floor(stop / step); + ticks = new Array(n = Math.ceil(stop - start + 1)); + while (++i < n) ticks[i] = (start + i) * step; + } else { + start = Math.floor(start * step); + stop = Math.ceil(stop * step); + ticks = new Array(n = Math.ceil(start - stop + 1)); + while (++i < n) ticks[i] = (start - i) / step; + } + + if (reverse) ticks.reverse(); + + return ticks; + } + + function tickIncrement(start, stop, count) { + var step = (stop - start) / Math.max(0, count), + power = Math.floor(Math.log(step) / Math.LN10), + error = step / Math.pow(10, power); + return power >= 0 + ? (error >= e10 ? 10 : error >= e5 ? 5 : error >= e2 ? 2 : 1) * Math.pow(10, power) + : -Math.pow(10, -power) / (error >= e10 ? 10 : error >= e5 ? 5 : error >= e2 ? 2 : 1); + } + + function tickStep(start, stop, count) { + var step0 = Math.abs(stop - start) / Math.max(0, count), + step1 = Math.pow(10, Math.floor(Math.log(step0) / Math.LN10)), + error = step0 / step1; + if (error >= e10) step1 *= 10; + else if (error >= e5) step1 *= 5; + else if (error >= e2) step1 *= 2; + return stop < start ? -step1 : step1; + } + + function thresholdSturges(values) { + return Math.ceil(Math.log(values.length) / Math.LN2) + 1; + } + + function histogram() { + var value = identity, + domain = extent, + threshold = thresholdSturges; + + function histogram(data) { + var i, + n = data.length, + x, + values = new Array(n); + + for (i = 0; i < n; ++i) { + values[i] = value(data[i], i, data); + } + + var xz = domain(values), + x0 = xz[0], + x1 = xz[1], + tz = threshold(values, x0, x1); + + // Convert number of thresholds into uniform thresholds. + if (!Array.isArray(tz)) { + tz = tickStep(x0, x1, tz); + tz = sequence(Math.ceil(x0 / tz) * tz, x1, tz); // exclusive + } + + // Remove any thresholds outside the domain. + var m = tz.length; + while (tz[0] <= x0) tz.shift(), --m; + while (tz[m - 1] > x1) tz.pop(), --m; + + var bins = new Array(m + 1), + bin; + + // Initialize bins. + for (i = 0; i <= m; ++i) { + bin = bins[i] = []; + bin.x0 = i > 0 ? tz[i - 1] : x0; + bin.x1 = i < m ? tz[i] : x1; + } + + // Assign data to bins by value, ignoring any outside the domain. + for (i = 0; i < n; ++i) { + x = values[i]; + if (x0 <= x && x <= x1) { + bins[bisectRight(tz, x, 0, m)].push(data[i]); + } + } + + return bins; + } + + histogram.value = function(_) { + return arguments.length ? (value = typeof _ === "function" ? _ : constant(_), histogram) : value; + }; + + histogram.domain = function(_) { + return arguments.length ? (domain = typeof _ === "function" ? _ : constant([_[0], _[1]]), histogram) : domain; + }; + + histogram.thresholds = function(_) { + return arguments.length ? (threshold = typeof _ === "function" ? _ : Array.isArray(_) ? constant(slice.call(_)) : constant(_), histogram) : threshold; + }; + + return histogram; + } + + function threshold(values, p, valueof) { + if (valueof == null) valueof = number; + if (!(n = values.length)) return; + if ((p = +p) <= 0 || n < 2) return +valueof(values[0], 0, values); + if (p >= 1) return +valueof(values[n - 1], n - 1, values); + var n, + i = (n - 1) * p, + i0 = Math.floor(i), + value0 = +valueof(values[i0], i0, values), + value1 = +valueof(values[i0 + 1], i0 + 1, values); + return value0 + (value1 - value0) * (i - i0); + } + + function freedmanDiaconis(values, min, max) { + values = map.call(values, number).sort(ascending); + return Math.ceil((max - min) / (2 * (threshold(values, 0.75) - threshold(values, 0.25)) * Math.pow(values.length, -1 / 3))); + } + + function scott(values, min, max) { + return Math.ceil((max - min) / (3.5 * deviation(values) * Math.pow(values.length, -1 / 3))); + } + + function max(values, valueof) { + var n = values.length, + i = -1, + value, + max; + + if (valueof == null) { + while (++i < n) { // Find the first comparable value. + if ((value = values[i]) != null && value >= value) { + max = value; + while (++i < n) { // Compare the remaining values. + if ((value = values[i]) != null && value > max) { + max = value; + } + } + } + } + } + + else { + while (++i < n) { // Find the first comparable value. + if ((value = valueof(values[i], i, values)) != null && value >= value) { + max = value; + while (++i < n) { // Compare the remaining values. + if ((value = valueof(values[i], i, values)) != null && value > max) { + max = value; + } + } + } + } + } + + return max; + } + + function mean(values, valueof) { + var n = values.length, + m = n, + i = -1, + value, + sum = 0; + + if (valueof == null) { + while (++i < n) { + if (!isNaN(value = number(values[i]))) sum += value; + else --m; + } + } + + else { + while (++i < n) { + if (!isNaN(value = number(valueof(values[i], i, values)))) sum += value; + else --m; + } + } + + if (m) return sum / m; + } + + function median(values, valueof) { + var n = values.length, + i = -1, + value, + numbers = []; + + if (valueof == null) { + while (++i < n) { + if (!isNaN(value = number(values[i]))) { + numbers.push(value); + } + } + } + + else { + while (++i < n) { + if (!isNaN(value = number(valueof(values[i], i, values)))) { + numbers.push(value); + } + } + } + + return threshold(numbers.sort(ascending), 0.5); + } + + function merge(arrays) { + var n = arrays.length, + m, + i = -1, + j = 0, + merged, + array; + + while (++i < n) j += arrays[i].length; + merged = new Array(j); + + while (--n >= 0) { + array = arrays[n]; + m = array.length; + while (--m >= 0) { + merged[--j] = array[m]; + } + } + + return merged; + } + + function min(values, valueof) { + var n = values.length, + i = -1, + value, + min; + + if (valueof == null) { + while (++i < n) { // Find the first comparable value. + if ((value = values[i]) != null && value >= value) { + min = value; + while (++i < n) { // Compare the remaining values. + if ((value = values[i]) != null && min > value) { + min = value; + } + } + } + } + } + + else { + while (++i < n) { // Find the first comparable value. + if ((value = valueof(values[i], i, values)) != null && value >= value) { + min = value; + while (++i < n) { // Compare the remaining values. + if ((value = valueof(values[i], i, values)) != null && min > value) { + min = value; + } + } + } + } + } + + return min; + } + + function permute(array, indexes) { + var i = indexes.length, permutes = new Array(i); + while (i--) permutes[i] = array[indexes[i]]; + return permutes; + } + + function scan(values, compare) { + if (!(n = values.length)) return; + var n, + i = 0, + j = 0, + xi, + xj = values[j]; + + if (compare == null) compare = ascending; + + while (++i < n) { + if (compare(xi = values[i], xj) < 0 || compare(xj, xj) !== 0) { + xj = xi, j = i; + } + } + + if (compare(xj, xj) === 0) return j; + } + + function shuffle(array, i0, i1) { + var m = (i1 == null ? array.length : i1) - (i0 = i0 == null ? 0 : +i0), + t, + i; + + while (m) { + i = Math.random() * m-- | 0; + t = array[m + i0]; + array[m + i0] = array[i + i0]; + array[i + i0] = t; + } + + return array; + } + + function sum(values, valueof) { + var n = values.length, + i = -1, + value, + sum = 0; + + if (valueof == null) { + while (++i < n) { + if (value = +values[i]) sum += value; // Note: zero and null are equivalent. + } + } + + else { + while (++i < n) { + if (value = +valueof(values[i], i, values)) sum += value; + } + } + + return sum; + } + + function transpose(matrix) { + if (!(n = matrix.length)) return []; + for (var i = -1, m = min(matrix, length), transpose = new Array(m); ++i < m;) { + for (var j = -1, n, row = transpose[i] = new Array(n); ++j < n;) { + row[j] = matrix[j][i]; + } + } + return transpose; + } + + function length(d) { + return d.length; + } + + function zip() { + return transpose(arguments); + } + + var slice$1 = Array.prototype.slice; + + function identity$1(x) { + return x; + } + + var top = 1, + right = 2, + bottom = 3, + left = 4, + epsilon = 1e-6; + + function translateX(x) { + return "translate(" + (x + 0.5) + ",0)"; + } + + function translateY(y) { + return "translate(0," + (y + 0.5) + ")"; + } + + function number$1(scale) { + return function(d) { + return +scale(d); + }; + } + + function center(scale) { + var offset = Math.max(0, scale.bandwidth() - 1) / 2; // Adjust for 0.5px offset. + if (scale.round()) offset = Math.round(offset); + return function(d) { + return +scale(d) + offset; + }; + } + + function entering() { + return !this.__axis; + } + + function axis(orient, scale) { + var tickArguments = [], + tickValues = null, + tickFormat = null, + tickSizeInner = 6, + tickSizeOuter = 6, + tickPadding = 3, + k = orient === top || orient === left ? -1 : 1, + x = orient === left || orient === right ? "x" : "y", + transform = orient === top || orient === bottom ? translateX : translateY; + + function axis(context) { + var values = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments) : scale.domain()) : tickValues, + format = tickFormat == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments) : identity$1) : tickFormat, + spacing = Math.max(tickSizeInner, 0) + tickPadding, + range = scale.range(), + range0 = +range[0] + 0.5, + range1 = +range[range.length - 1] + 0.5, + position = (scale.bandwidth ? center : number$1)(scale.copy()), + selection = context.selection ? context.selection() : context, + path = selection.selectAll(".domain").data([null]), + tick = selection.selectAll(".tick").data(values, scale).order(), + tickExit = tick.exit(), + tickEnter = tick.enter().append("g").attr("class", "tick"), + line = tick.select("line"), + text = tick.select("text"); + + path = path.merge(path.enter().insert("path", ".tick") + .attr("class", "domain") + .attr("stroke", "currentColor")); + + tick = tick.merge(tickEnter); + + line = line.merge(tickEnter.append("line") + .attr("stroke", "currentColor") + .attr(x + "2", k * tickSizeInner)); + + text = text.merge(tickEnter.append("text") + .attr("fill", "currentColor") + .attr(x, k * spacing) + .attr("dy", orient === top ? "0em" : orient === bottom ? "0.71em" : "0.32em")); + + if (context !== selection) { + path = path.transition(context); + tick = tick.transition(context); + line = line.transition(context); + text = text.transition(context); + + tickExit = tickExit.transition(context) + .attr("opacity", epsilon) + .attr("transform", function(d) { return isFinite(d = position(d)) ? transform(d) : this.getAttribute("transform"); }); + + tickEnter + .attr("opacity", epsilon) + .attr("transform", function(d) { var p = this.parentNode.__axis; return transform(p && isFinite(p = p(d)) ? p : position(d)); }); + } + + tickExit.remove(); + + path + .attr("d", orient === left || orient == right + ? (tickSizeOuter ? "M" + k * tickSizeOuter + "," + range0 + "H0.5V" + range1 + "H" + k * tickSizeOuter : "M0.5," + range0 + "V" + range1) + : (tickSizeOuter ? "M" + range0 + "," + k * tickSizeOuter + "V0.5H" + range1 + "V" + k * tickSizeOuter : "M" + range0 + ",0.5H" + range1)); + + tick + .attr("opacity", 1) + .attr("transform", function(d) { return transform(position(d)); }); + + line + .attr(x + "2", k * tickSizeInner); + + text + .attr(x, k * spacing) + .text(format); + + selection.filter(entering) + .attr("fill", "none") + .attr("font-size", 10) + .attr("font-family", "sans-serif") + .attr("text-anchor", orient === right ? "start" : orient === left ? "end" : "middle"); + + selection + .each(function() { this.__axis = position; }); + } + + axis.scale = function(_) { + return arguments.length ? (scale = _, axis) : scale; + }; + + axis.ticks = function() { + return tickArguments = slice$1.call(arguments), axis; + }; + + axis.tickArguments = function(_) { + return arguments.length ? (tickArguments = _ == null ? [] : slice$1.call(_), axis) : tickArguments.slice(); + }; + + axis.tickValues = function(_) { + return arguments.length ? (tickValues = _ == null ? null : slice$1.call(_), axis) : tickValues && tickValues.slice(); + }; + + axis.tickFormat = function(_) { + return arguments.length ? (tickFormat = _, axis) : tickFormat; + }; + + axis.tickSize = function(_) { + return arguments.length ? (tickSizeInner = tickSizeOuter = +_, axis) : tickSizeInner; + }; + + axis.tickSizeInner = function(_) { + return arguments.length ? (tickSizeInner = +_, axis) : tickSizeInner; + }; + + axis.tickSizeOuter = function(_) { + return arguments.length ? (tickSizeOuter = +_, axis) : tickSizeOuter; + }; + + axis.tickPadding = function(_) { + return arguments.length ? (tickPadding = +_, axis) : tickPadding; + }; + + return axis; + } + + function axisTop(scale) { + return axis(top, scale); + } + + function axisRight(scale) { + return axis(right, scale); + } + + function axisBottom(scale) { + return axis(bottom, scale); + } + + function axisLeft(scale) { + return axis(left, scale); + } + + var noop = {value: function() {}}; + + function dispatch() { + for (var i = 0, n = arguments.length, _ = {}, t; i < n; ++i) { + if (!(t = arguments[i] + "") || (t in _) || /[\s.]/.test(t)) throw new Error("illegal type: " + t); + _[t] = []; + } + return new Dispatch(_); + } + + function Dispatch(_) { + this._ = _; + } + + function parseTypenames(typenames, types) { + return typenames.trim().split(/^|\s+/).map(function(t) { + var name = "", i = t.indexOf("."); + if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i); + if (t && !types.hasOwnProperty(t)) throw new Error("unknown type: " + t); + return {type: t, name: name}; + }); + } + + Dispatch.prototype = dispatch.prototype = { + constructor: Dispatch, + on: function(typename, callback) { + var _ = this._, + T = parseTypenames(typename + "", _), + t, + i = -1, + n = T.length; + + // If no callback was specified, return the callback of the given type and name. + if (arguments.length < 2) { + while (++i < n) if ((t = (typename = T[i]).type) && (t = get(_[t], typename.name))) return t; + return; + } + + // If a type was specified, set the callback for the given type and name. + // Otherwise, if a null callback was specified, remove callbacks of the given name. + if (callback != null && typeof callback !== "function") throw new Error("invalid callback: " + callback); + while (++i < n) { + if (t = (typename = T[i]).type) _[t] = set(_[t], typename.name, callback); + else if (callback == null) for (t in _) _[t] = set(_[t], typename.name, null); + } + + return this; + }, + copy: function() { + var copy = {}, _ = this._; + for (var t in _) copy[t] = _[t].slice(); + return new Dispatch(copy); + }, + call: function(type, that) { + if ((n = arguments.length - 2) > 0) for (var args = new Array(n), i = 0, n, t; i < n; ++i) args[i] = arguments[i + 2]; + if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type); + for (t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args); + }, + apply: function(type, that, args) { + if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type); + for (var t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args); + } + }; + + function get(type, name) { + for (var i = 0, n = type.length, c; i < n; ++i) { + if ((c = type[i]).name === name) { + return c.value; + } + } + } + + function set(type, name, callback) { + for (var i = 0, n = type.length; i < n; ++i) { + if (type[i].name === name) { + type[i] = noop, type = type.slice(0, i).concat(type.slice(i + 1)); + break; + } + } + if (callback != null) type.push({name: name, value: callback}); + return type; + } + + var xhtml = "http://www.w3.org/1999/xhtml"; + + var namespaces = { + svg: "http://www.w3.org/2000/svg", + xhtml: xhtml, + xlink: "http://www.w3.org/1999/xlink", + xml: "http://www.w3.org/XML/1998/namespace", + xmlns: "http://www.w3.org/2000/xmlns/" + }; + + function namespace(name) { + var prefix = name += "", i = prefix.indexOf(":"); + if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1); + return namespaces.hasOwnProperty(prefix) ? {space: namespaces[prefix], local: name} : name; + } + + function creatorInherit(name) { + return function() { + var document = this.ownerDocument, + uri = this.namespaceURI; + return uri === xhtml && document.documentElement.namespaceURI === xhtml + ? document.createElement(name) + : document.createElementNS(uri, name); + }; + } + + function creatorFixed(fullname) { + return function() { + return this.ownerDocument.createElementNS(fullname.space, fullname.local); + }; + } + + function creator(name) { + var fullname = namespace(name); + return (fullname.local + ? creatorFixed + : creatorInherit)(fullname); + } + + function none() {} + + function selector(selector) { + return selector == null ? none : function() { + return this.querySelector(selector); + }; + } + + function selection_select(select) { + if (typeof select !== "function") select = selector(select); + + for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) { + if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) { + if ("__data__" in node) subnode.__data__ = node.__data__; + subgroup[i] = subnode; + } + } + } + + return new Selection(subgroups, this._parents); + } + + function empty() { + return []; + } + + function selectorAll(selector) { + return selector == null ? empty : function() { + return this.querySelectorAll(selector); + }; + } + + function selection_selectAll(select) { + if (typeof select !== "function") select = selectorAll(select); + + for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { + if (node = group[i]) { + subgroups.push(select.call(node, node.__data__, i, group)); + parents.push(node); + } + } + } + + return new Selection(subgroups, parents); + } + + function matcher(selector) { + return function() { + return this.matches(selector); + }; + } + + function selection_filter(match) { + if (typeof match !== "function") match = matcher(match); + + for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) { + if ((node = group[i]) && match.call(node, node.__data__, i, group)) { + subgroup.push(node); + } + } + } + + return new Selection(subgroups, this._parents); + } + + function sparse(update) { + return new Array(update.length); + } + + function selection_enter() { + return new Selection(this._enter || this._groups.map(sparse), this._parents); + } + + function EnterNode(parent, datum) { + this.ownerDocument = parent.ownerDocument; + this.namespaceURI = parent.namespaceURI; + this._next = null; + this._parent = parent; + this.__data__ = datum; + } + + EnterNode.prototype = { + constructor: EnterNode, + appendChild: function(child) { return this._parent.insertBefore(child, this._next); }, + insertBefore: function(child, next) { return this._parent.insertBefore(child, next); }, + querySelector: function(selector) { return this._parent.querySelector(selector); }, + querySelectorAll: function(selector) { return this._parent.querySelectorAll(selector); } + }; + + function constant$1(x) { + return function() { + return x; + }; + } + + var keyPrefix = "$"; // Protect against keys like “__proto__”. + + function bindIndex(parent, group, enter, update, exit, data) { + var i = 0, + node, + groupLength = group.length, + dataLength = data.length; + + // Put any non-null nodes that fit into update. + // Put any null nodes into enter. + // Put any remaining data into enter. + for (; i < dataLength; ++i) { + if (node = group[i]) { + node.__data__ = data[i]; + update[i] = node; + } else { + enter[i] = new EnterNode(parent, data[i]); + } + } + + // Put any non-null nodes that don’t fit into exit. + for (; i < groupLength; ++i) { + if (node = group[i]) { + exit[i] = node; + } + } + } + + function bindKey(parent, group, enter, update, exit, data, key) { + var i, + node, + nodeByKeyValue = {}, + groupLength = group.length, + dataLength = data.length, + keyValues = new Array(groupLength), + keyValue; + + // Compute the key for each node. + // If multiple nodes have the same key, the duplicates are added to exit. + for (i = 0; i < groupLength; ++i) { + if (node = group[i]) { + keyValues[i] = keyValue = keyPrefix + key.call(node, node.__data__, i, group); + if (keyValue in nodeByKeyValue) { + exit[i] = node; + } else { + nodeByKeyValue[keyValue] = node; + } + } + } + + // Compute the key for each datum. + // If there a node associated with this key, join and add it to update. + // If there is not (or the key is a duplicate), add it to enter. + for (i = 0; i < dataLength; ++i) { + keyValue = keyPrefix + key.call(parent, data[i], i, data); + if (node = nodeByKeyValue[keyValue]) { + update[i] = node; + node.__data__ = data[i]; + nodeByKeyValue[keyValue] = null; + } else { + enter[i] = new EnterNode(parent, data[i]); + } + } + + // Add any remaining nodes that were not bound to data to exit. + for (i = 0; i < groupLength; ++i) { + if ((node = group[i]) && (nodeByKeyValue[keyValues[i]] === node)) { + exit[i] = node; + } + } + } + + function selection_data(value, key) { + if (!value) { + data = new Array(this.size()), j = -1; + this.each(function(d) { data[++j] = d; }); + return data; + } + + var bind = key ? bindKey : bindIndex, + parents = this._parents, + groups = this._groups; + + if (typeof value !== "function") value = constant$1(value); + + for (var m = groups.length, update = new Array(m), enter = new Array(m), exit = new Array(m), j = 0; j < m; ++j) { + var parent = parents[j], + group = groups[j], + groupLength = group.length, + data = value.call(parent, parent && parent.__data__, j, parents), + dataLength = data.length, + enterGroup = enter[j] = new Array(dataLength), + updateGroup = update[j] = new Array(dataLength), + exitGroup = exit[j] = new Array(groupLength); + + bind(parent, group, enterGroup, updateGroup, exitGroup, data, key); + + // Now connect the enter nodes to their following update node, such that + // appendChild can insert the materialized enter node before this node, + // rather than at the end of the parent node. + for (var i0 = 0, i1 = 0, previous, next; i0 < dataLength; ++i0) { + if (previous = enterGroup[i0]) { + if (i0 >= i1) i1 = i0 + 1; + while (!(next = updateGroup[i1]) && ++i1 < dataLength); + previous._next = next || null; + } + } + } + + update = new Selection(update, parents); + update._enter = enter; + update._exit = exit; + return update; + } + + function selection_exit() { + return new Selection(this._exit || this._groups.map(sparse), this._parents); + } + + function selection_join(onenter, onupdate, onexit) { + var enter = this.enter(), update = this, exit = this.exit(); + enter = typeof onenter === "function" ? onenter(enter) : enter.append(onenter + ""); + if (onupdate != null) update = onupdate(update); + if (onexit == null) exit.remove(); else onexit(exit); + return enter && update ? enter.merge(update).order() : update; + } + + function selection_merge(selection) { + + for (var groups0 = this._groups, groups1 = selection._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) { + for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) { + if (node = group0[i] || group1[i]) { + merge[i] = node; + } + } + } + + for (; j < m0; ++j) { + merges[j] = groups0[j]; + } + + return new Selection(merges, this._parents); + } + + function selection_order() { + + for (var groups = this._groups, j = -1, m = groups.length; ++j < m;) { + for (var group = groups[j], i = group.length - 1, next = group[i], node; --i >= 0;) { + if (node = group[i]) { + if (next && node.compareDocumentPosition(next) ^ 4) next.parentNode.insertBefore(node, next); + next = node; + } + } + } + + return this; + } + + function selection_sort(compare) { + if (!compare) compare = ascending$1; + + function compareNode(a, b) { + return a && b ? compare(a.__data__, b.__data__) : !a - !b; + } + + for (var groups = this._groups, m = groups.length, sortgroups = new Array(m), j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, sortgroup = sortgroups[j] = new Array(n), node, i = 0; i < n; ++i) { + if (node = group[i]) { + sortgroup[i] = node; + } + } + sortgroup.sort(compareNode); + } + + return new Selection(sortgroups, this._parents).order(); + } + + function ascending$1(a, b) { + return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN; + } + + function selection_call() { + var callback = arguments[0]; + arguments[0] = this; + callback.apply(null, arguments); + return this; + } + + function selection_nodes() { + var nodes = new Array(this.size()), i = -1; + this.each(function() { nodes[++i] = this; }); + return nodes; + } + + function selection_node() { + + for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) { + for (var group = groups[j], i = 0, n = group.length; i < n; ++i) { + var node = group[i]; + if (node) return node; + } + } + + return null; + } + + function selection_size() { + var size = 0; + this.each(function() { ++size; }); + return size; + } + + function selection_empty() { + return !this.node(); + } + + function selection_each(callback) { + + for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) { + for (var group = groups[j], i = 0, n = group.length, node; i < n; ++i) { + if (node = group[i]) callback.call(node, node.__data__, i, group); + } + } + + return this; + } + + function attrRemove(name) { + return function() { + this.removeAttribute(name); + }; + } + + function attrRemoveNS(fullname) { + return function() { + this.removeAttributeNS(fullname.space, fullname.local); + }; + } + + function attrConstant(name, value) { + return function() { + this.setAttribute(name, value); + }; + } + + function attrConstantNS(fullname, value) { + return function() { + this.setAttributeNS(fullname.space, fullname.local, value); + }; + } + + function attrFunction(name, value) { + return function() { + var v = value.apply(this, arguments); + if (v == null) this.removeAttribute(name); + else this.setAttribute(name, v); + }; + } + + function attrFunctionNS(fullname, value) { + return function() { + var v = value.apply(this, arguments); + if (v == null) this.removeAttributeNS(fullname.space, fullname.local); + else this.setAttributeNS(fullname.space, fullname.local, v); + }; + } + + function selection_attr(name, value) { + var fullname = namespace(name); + + if (arguments.length < 2) { + var node = this.node(); + return fullname.local + ? node.getAttributeNS(fullname.space, fullname.local) + : node.getAttribute(fullname); + } + + return this.each((value == null + ? (fullname.local ? attrRemoveNS : attrRemove) : (typeof value === "function" + ? (fullname.local ? attrFunctionNS : attrFunction) + : (fullname.local ? attrConstantNS : attrConstant)))(fullname, value)); + } + + function defaultView(node) { + return (node.ownerDocument && node.ownerDocument.defaultView) // node is a Node + || (node.document && node) // node is a Window + || node.defaultView; // node is a Document + } + + function styleRemove(name) { + return function() { + this.style.removeProperty(name); + }; + } + + function styleConstant(name, value, priority) { + return function() { + this.style.setProperty(name, value, priority); + }; + } + + function styleFunction(name, value, priority) { + return function() { + var v = value.apply(this, arguments); + if (v == null) this.style.removeProperty(name); + else this.style.setProperty(name, v, priority); + }; + } + + function selection_style(name, value, priority) { + return arguments.length > 1 + ? this.each((value == null + ? styleRemove : typeof value === "function" + ? styleFunction + : styleConstant)(name, value, priority == null ? "" : priority)) + : styleValue(this.node(), name); + } + + function styleValue(node, name) { + return node.style.getPropertyValue(name) + || defaultView(node).getComputedStyle(node, null).getPropertyValue(name); + } + + function propertyRemove(name) { + return function() { + delete this[name]; + }; + } + + function propertyConstant(name, value) { + return function() { + this[name] = value; + }; + } + + function propertyFunction(name, value) { + return function() { + var v = value.apply(this, arguments); + if (v == null) delete this[name]; + else this[name] = v; + }; + } + + function selection_property(name, value) { + return arguments.length > 1 + ? this.each((value == null + ? propertyRemove : typeof value === "function" + ? propertyFunction + : propertyConstant)(name, value)) + : this.node()[name]; + } + + function classArray(string) { + return string.trim().split(/^|\s+/); + } + + function classList(node) { + return node.classList || new ClassList(node); + } + + function ClassList(node) { + this._node = node; + this._names = classArray(node.getAttribute("class") || ""); + } + + ClassList.prototype = { + add: function(name) { + var i = this._names.indexOf(name); + if (i < 0) { + this._names.push(name); + this._node.setAttribute("class", this._names.join(" ")); + } + }, + remove: function(name) { + var i = this._names.indexOf(name); + if (i >= 0) { + this._names.splice(i, 1); + this._node.setAttribute("class", this._names.join(" ")); + } + }, + contains: function(name) { + return this._names.indexOf(name) >= 0; + } + }; + + function classedAdd(node, names) { + var list = classList(node), i = -1, n = names.length; + while (++i < n) list.add(names[i]); + } + + function classedRemove(node, names) { + var list = classList(node), i = -1, n = names.length; + while (++i < n) list.remove(names[i]); + } + + function classedTrue(names) { + return function() { + classedAdd(this, names); + }; + } + + function classedFalse(names) { + return function() { + classedRemove(this, names); + }; + } + + function classedFunction(names, value) { + return function() { + (value.apply(this, arguments) ? classedAdd : classedRemove)(this, names); + }; + } + + function selection_classed(name, value) { + var names = classArray(name + ""); + + if (arguments.length < 2) { + var list = classList(this.node()), i = -1, n = names.length; + while (++i < n) if (!list.contains(names[i])) return false; + return true; + } + + return this.each((typeof value === "function" + ? classedFunction : value + ? classedTrue + : classedFalse)(names, value)); + } + + function textRemove() { + this.textContent = ""; + } + + function textConstant(value) { + return function() { + this.textContent = value; + }; + } + + function textFunction(value) { + return function() { + var v = value.apply(this, arguments); + this.textContent = v == null ? "" : v; + }; + } + + function selection_text(value) { + return arguments.length + ? this.each(value == null + ? textRemove : (typeof value === "function" + ? textFunction + : textConstant)(value)) + : this.node().textContent; + } + + function htmlRemove() { + this.innerHTML = ""; + } + + function htmlConstant(value) { + return function() { + this.innerHTML = value; + }; + } + + function htmlFunction(value) { + return function() { + var v = value.apply(this, arguments); + this.innerHTML = v == null ? "" : v; + }; + } + + function selection_html(value) { + return arguments.length + ? this.each(value == null + ? htmlRemove : (typeof value === "function" + ? htmlFunction + : htmlConstant)(value)) + : this.node().innerHTML; + } + + function raise() { + if (this.nextSibling) this.parentNode.appendChild(this); + } + + function selection_raise() { + return this.each(raise); + } + + function lower() { + if (this.previousSibling) this.parentNode.insertBefore(this, this.parentNode.firstChild); + } + + function selection_lower() { + return this.each(lower); + } + + function selection_append(name) { + var create = typeof name === "function" ? name : creator(name); + return this.select(function() { + return this.appendChild(create.apply(this, arguments)); + }); + } + + function constantNull() { + return null; + } + + function selection_insert(name, before) { + var create = typeof name === "function" ? name : creator(name), + select = before == null ? constantNull : typeof before === "function" ? before : selector(before); + return this.select(function() { + return this.insertBefore(create.apply(this, arguments), select.apply(this, arguments) || null); + }); + } + + function remove() { + var parent = this.parentNode; + if (parent) parent.removeChild(this); + } + + function selection_remove() { + return this.each(remove); + } + + function selection_cloneShallow() { + var clone = this.cloneNode(false), parent = this.parentNode; + return parent ? parent.insertBefore(clone, this.nextSibling) : clone; + } + + function selection_cloneDeep() { + var clone = this.cloneNode(true), parent = this.parentNode; + return parent ? parent.insertBefore(clone, this.nextSibling) : clone; + } + + function selection_clone(deep) { + return this.select(deep ? selection_cloneDeep : selection_cloneShallow); + } + + function selection_datum(value) { + return arguments.length + ? this.property("__data__", value) + : this.node().__data__; + } + + var filterEvents = {}; + + var event = null; + + if (typeof document !== "undefined") { + var element = document.documentElement; + if (!("onmouseenter" in element)) { + filterEvents = {mouseenter: "mouseover", mouseleave: "mouseout"}; + } + } + + function filterContextListener(listener, index, group) { + listener = contextListener(listener, index, group); + return function(event) { + var related = event.relatedTarget; + if (!related || (related !== this && !(related.compareDocumentPosition(this) & 8))) { + listener.call(this, event); + } + }; + } + + function contextListener(listener, index, group) { + return function(event1) { + var event0 = event; // Events can be reentrant (e.g., focus). + event = event1; + try { + listener.call(this, this.__data__, index, group); + } finally { + event = event0; + } + }; + } + + function parseTypenames$1(typenames) { + return typenames.trim().split(/^|\s+/).map(function(t) { + var name = "", i = t.indexOf("."); + if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i); + return {type: t, name: name}; + }); + } + + function onRemove(typename) { + return function() { + var on = this.__on; + if (!on) return; + for (var j = 0, i = -1, m = on.length, o; j < m; ++j) { + if (o = on[j], (!typename.type || o.type === typename.type) && o.name === typename.name) { + this.removeEventListener(o.type, o.listener, o.capture); + } else { + on[++i] = o; + } + } + if (++i) on.length = i; + else delete this.__on; + }; + } + + function onAdd(typename, value, capture) { + var wrap = filterEvents.hasOwnProperty(typename.type) ? filterContextListener : contextListener; + return function(d, i, group) { + var on = this.__on, o, listener = wrap(value, i, group); + if (on) for (var j = 0, m = on.length; j < m; ++j) { + if ((o = on[j]).type === typename.type && o.name === typename.name) { + this.removeEventListener(o.type, o.listener, o.capture); + this.addEventListener(o.type, o.listener = listener, o.capture = capture); + o.value = value; + return; + } + } + this.addEventListener(typename.type, listener, capture); + o = {type: typename.type, name: typename.name, value: value, listener: listener, capture: capture}; + if (!on) this.__on = [o]; + else on.push(o); + }; + } + + function selection_on(typename, value, capture) { + var typenames = parseTypenames$1(typename + ""), i, n = typenames.length, t; + + if (arguments.length < 2) { + var on = this.node().__on; + if (on) for (var j = 0, m = on.length, o; j < m; ++j) { + for (i = 0, o = on[j]; i < n; ++i) { + if ((t = typenames[i]).type === o.type && t.name === o.name) { + return o.value; + } + } + } + return; + } + + on = value ? onAdd : onRemove; + if (capture == null) capture = false; + for (i = 0; i < n; ++i) this.each(on(typenames[i], value, capture)); + return this; + } + + function customEvent(event1, listener, that, args) { + var event0 = event; + event1.sourceEvent = event; + event = event1; + try { + return listener.apply(that, args); + } finally { + event = event0; + } + } + + function dispatchEvent(node, type, params) { + var window = defaultView(node), + event = window.CustomEvent; + + if (typeof event === "function") { + event = new event(type, params); + } else { + event = window.document.createEvent("Event"); + if (params) event.initEvent(type, params.bubbles, params.cancelable), event.detail = params.detail; + else event.initEvent(type, false, false); + } + + node.dispatchEvent(event); + } + + function dispatchConstant(type, params) { + return function() { + return dispatchEvent(this, type, params); + }; + } + + function dispatchFunction(type, params) { + return function() { + return dispatchEvent(this, type, params.apply(this, arguments)); + }; + } + + function selection_dispatch(type, params) { + return this.each((typeof params === "function" + ? dispatchFunction + : dispatchConstant)(type, params)); + } + + var root = [null]; + + function Selection(groups, parents) { + this._groups = groups; + this._parents = parents; + } + + function selection() { + return new Selection([[document.documentElement]], root); + } + + Selection.prototype = selection.prototype = { + constructor: Selection, + select: selection_select, + selectAll: selection_selectAll, + filter: selection_filter, + data: selection_data, + enter: selection_enter, + exit: selection_exit, + join: selection_join, + merge: selection_merge, + order: selection_order, + sort: selection_sort, + call: selection_call, + nodes: selection_nodes, + node: selection_node, + size: selection_size, + empty: selection_empty, + each: selection_each, + attr: selection_attr, + style: selection_style, + property: selection_property, + classed: selection_classed, + text: selection_text, + html: selection_html, + raise: selection_raise, + lower: selection_lower, + append: selection_append, + insert: selection_insert, + remove: selection_remove, + clone: selection_clone, + datum: selection_datum, + on: selection_on, + dispatch: selection_dispatch + }; + + function select(selector) { + return typeof selector === "string" + ? new Selection([[document.querySelector(selector)]], [document.documentElement]) + : new Selection([[selector]], root); + } + + function create(name) { + return select(creator(name).call(document.documentElement)); + } + + var nextId = 0; + + function local() { + return new Local; + } + + function Local() { + this._ = "@" + (++nextId).toString(36); + } + + Local.prototype = local.prototype = { + constructor: Local, + get: function(node) { + var id = this._; + while (!(id in node)) if (!(node = node.parentNode)) return; + return node[id]; + }, + set: function(node, value) { + return node[this._] = value; + }, + remove: function(node) { + return this._ in node && delete node[this._]; + }, + toString: function() { + return this._; + } + }; + + function sourceEvent() { + var current = event, source; + while (source = current.sourceEvent) current = source; + return current; + } + + function point(node, event) { + var svg = node.ownerSVGElement || node; + + if (svg.createSVGPoint) { + var point = svg.createSVGPoint(); + point.x = event.clientX, point.y = event.clientY; + point = point.matrixTransform(node.getScreenCTM().inverse()); + return [point.x, point.y]; + } + + var rect = node.getBoundingClientRect(); + return [event.clientX - rect.left - node.clientLeft, event.clientY - rect.top - node.clientTop]; + } + + function mouse(node) { + var event = sourceEvent(); + if (event.changedTouches) event = event.changedTouches[0]; + return point(node, event); + } + + function selectAll(selector) { + return typeof selector === "string" + ? new Selection([document.querySelectorAll(selector)], [document.documentElement]) + : new Selection([selector == null ? [] : selector], root); + } + + function touch(node, touches, identifier) { + if (arguments.length < 3) identifier = touches, touches = sourceEvent().changedTouches; + + for (var i = 0, n = touches ? touches.length : 0, touch; i < n; ++i) { + if ((touch = touches[i]).identifier === identifier) { + return point(node, touch); + } + } + + return null; + } + + function touches(node, touches) { + if (touches == null) touches = sourceEvent().touches; + + for (var i = 0, n = touches ? touches.length : 0, points = new Array(n); i < n; ++i) { + points[i] = point(node, touches[i]); + } + + return points; + } + + function nopropagation() { + event.stopImmediatePropagation(); + } + + function noevent() { + event.preventDefault(); + event.stopImmediatePropagation(); + } + + function dragDisable(view) { + var root = view.document.documentElement, + selection = select(view).on("dragstart.drag", noevent, true); + if ("onselectstart" in root) { + selection.on("selectstart.drag", noevent, true); + } else { + root.__noselect = root.style.MozUserSelect; + root.style.MozUserSelect = "none"; + } + } + + function yesdrag(view, noclick) { + var root = view.document.documentElement, + selection = select(view).on("dragstart.drag", null); + if (noclick) { + selection.on("click.drag", noevent, true); + setTimeout(function() { selection.on("click.drag", null); }, 0); + } + if ("onselectstart" in root) { + selection.on("selectstart.drag", null); + } else { + root.style.MozUserSelect = root.__noselect; + delete root.__noselect; + } + } + + function constant$2(x) { + return function() { + return x; + }; + } + + function DragEvent(target, type, subject, id, active, x, y, dx, dy, dispatch) { + this.target = target; + this.type = type; + this.subject = subject; + this.identifier = id; + this.active = active; + this.x = x; + this.y = y; + this.dx = dx; + this.dy = dy; + this._ = dispatch; + } + + DragEvent.prototype.on = function() { + var value = this._.on.apply(this._, arguments); + return value === this._ ? this : value; + }; + + // Ignore right-click, since that should open the context menu. + function defaultFilter() { + return !event.ctrlKey && !event.button; + } + + function defaultContainer() { + return this.parentNode; + } + + function defaultSubject(d) { + return d == null ? {x: event.x, y: event.y} : d; + } + + function defaultTouchable() { + return navigator.maxTouchPoints || ("ontouchstart" in this); + } + + function drag() { + var filter = defaultFilter, + container = defaultContainer, + subject = defaultSubject, + touchable = defaultTouchable, + gestures = {}, + listeners = dispatch("start", "drag", "end"), + active = 0, + mousedownx, + mousedowny, + mousemoving, + touchending, + clickDistance2 = 0; + + function drag(selection) { + selection + .on("mousedown.drag", mousedowned) + .filter(touchable) + .on("touchstart.drag", touchstarted) + .on("touchmove.drag", touchmoved) + .on("touchend.drag touchcancel.drag", touchended) + .style("touch-action", "none") + .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)"); + } + + function mousedowned() { + if (touchending || !filter.apply(this, arguments)) return; + var gesture = beforestart("mouse", container.apply(this, arguments), mouse, this, arguments); + if (!gesture) return; + select(event.view).on("mousemove.drag", mousemoved, true).on("mouseup.drag", mouseupped, true); + dragDisable(event.view); + nopropagation(); + mousemoving = false; + mousedownx = event.clientX; + mousedowny = event.clientY; + gesture("start"); + } + + function mousemoved() { + noevent(); + if (!mousemoving) { + var dx = event.clientX - mousedownx, dy = event.clientY - mousedowny; + mousemoving = dx * dx + dy * dy > clickDistance2; + } + gestures.mouse("drag"); + } + + function mouseupped() { + select(event.view).on("mousemove.drag mouseup.drag", null); + yesdrag(event.view, mousemoving); + noevent(); + gestures.mouse("end"); + } + + function touchstarted() { + if (!filter.apply(this, arguments)) return; + var touches = event.changedTouches, + c = container.apply(this, arguments), + n = touches.length, i, gesture; + + for (i = 0; i < n; ++i) { + if (gesture = beforestart(touches[i].identifier, c, touch, this, arguments)) { + nopropagation(); + gesture("start"); + } + } + } + + function touchmoved() { + var touches = event.changedTouches, + n = touches.length, i, gesture; + + for (i = 0; i < n; ++i) { + if (gesture = gestures[touches[i].identifier]) { + noevent(); + gesture("drag"); + } + } + } + + function touchended() { + var touches = event.changedTouches, + n = touches.length, i, gesture; + + if (touchending) clearTimeout(touchending); + touchending = setTimeout(function() { touchending = null; }, 500); // Ghost clicks are delayed! + for (i = 0; i < n; ++i) { + if (gesture = gestures[touches[i].identifier]) { + nopropagation(); + gesture("end"); + } + } + } + + function beforestart(id, container, point, that, args) { + var p = point(container, id), s, dx, dy, + sublisteners = listeners.copy(); + + if (!customEvent(new DragEvent(drag, "beforestart", s, id, active, p[0], p[1], 0, 0, sublisteners), function() { + if ((event.subject = s = subject.apply(that, args)) == null) return false; + dx = s.x - p[0] || 0; + dy = s.y - p[1] || 0; + return true; + })) return; + + return function gesture(type) { + var p0 = p, n; + switch (type) { + case "start": gestures[id] = gesture, n = active++; break; + case "end": delete gestures[id], --active; // nobreak + case "drag": p = point(container, id), n = active; break; + } + customEvent(new DragEvent(drag, type, s, id, n, p[0] + dx, p[1] + dy, p[0] - p0[0], p[1] - p0[1], sublisteners), sublisteners.apply, sublisteners, [type, that, args]); + }; + } + + drag.filter = function(_) { + return arguments.length ? (filter = typeof _ === "function" ? _ : constant$2(!!_), drag) : filter; + }; + + drag.container = function(_) { + return arguments.length ? (container = typeof _ === "function" ? _ : constant$2(_), drag) : container; + }; + + drag.subject = function(_) { + return arguments.length ? (subject = typeof _ === "function" ? _ : constant$2(_), drag) : subject; + }; + + drag.touchable = function(_) { + return arguments.length ? (touchable = typeof _ === "function" ? _ : constant$2(!!_), drag) : touchable; + }; + + drag.on = function() { + var value = listeners.on.apply(listeners, arguments); + return value === listeners ? drag : value; + }; + + drag.clickDistance = function(_) { + return arguments.length ? (clickDistance2 = (_ = +_) * _, drag) : Math.sqrt(clickDistance2); + }; + + return drag; + } + + function define(constructor, factory, prototype) { + constructor.prototype = factory.prototype = prototype; + prototype.constructor = constructor; + } + + function extend(parent, definition) { + var prototype = Object.create(parent.prototype); + for (var key in definition) prototype[key] = definition[key]; + return prototype; + } + + function Color() {} + + var darker = 0.7; + var brighter = 1 / darker; + + var reI = "\\s*([+-]?\\d+)\\s*", + reN = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)\\s*", + reP = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)%\\s*", + reHex = /^#([0-9a-f]{3,8})$/, + reRgbInteger = new RegExp("^rgb\\(" + [reI, reI, reI] + "\\)$"), + reRgbPercent = new RegExp("^rgb\\(" + [reP, reP, reP] + "\\)$"), + reRgbaInteger = new RegExp("^rgba\\(" + [reI, reI, reI, reN] + "\\)$"), + reRgbaPercent = new RegExp("^rgba\\(" + [reP, reP, reP, reN] + "\\)$"), + reHslPercent = new RegExp("^hsl\\(" + [reN, reP, reP] + "\\)$"), + reHslaPercent = new RegExp("^hsla\\(" + [reN, reP, reP, reN] + "\\)$"); + + var named = { + aliceblue: 0xf0f8ff, + antiquewhite: 0xfaebd7, + aqua: 0x00ffff, + aquamarine: 0x7fffd4, + azure: 0xf0ffff, + beige: 0xf5f5dc, + bisque: 0xffe4c4, + black: 0x000000, + blanchedalmond: 0xffebcd, + blue: 0x0000ff, + blueviolet: 0x8a2be2, + brown: 0xa52a2a, + burlywood: 0xdeb887, + cadetblue: 0x5f9ea0, + chartreuse: 0x7fff00, + chocolate: 0xd2691e, + coral: 0xff7f50, + cornflowerblue: 0x6495ed, + cornsilk: 0xfff8dc, + crimson: 0xdc143c, + cyan: 0x00ffff, + darkblue: 0x00008b, + darkcyan: 0x008b8b, + darkgoldenrod: 0xb8860b, + darkgray: 0xa9a9a9, + darkgreen: 0x006400, + darkgrey: 0xa9a9a9, + darkkhaki: 0xbdb76b, + darkmagenta: 0x8b008b, + darkolivegreen: 0x556b2f, + darkorange: 0xff8c00, + darkorchid: 0x9932cc, + darkred: 0x8b0000, + darksalmon: 0xe9967a, + darkseagreen: 0x8fbc8f, + darkslateblue: 0x483d8b, + darkslategray: 0x2f4f4f, + darkslategrey: 0x2f4f4f, + darkturquoise: 0x00ced1, + darkviolet: 0x9400d3, + deeppink: 0xff1493, + deepskyblue: 0x00bfff, + dimgray: 0x696969, + dimgrey: 0x696969, + dodgerblue: 0x1e90ff, + firebrick: 0xb22222, + floralwhite: 0xfffaf0, + forestgreen: 0x228b22, + fuchsia: 0xff00ff, + gainsboro: 0xdcdcdc, + ghostwhite: 0xf8f8ff, + gold: 0xffd700, + goldenrod: 0xdaa520, + gray: 0x808080, + green: 0x008000, + greenyellow: 0xadff2f, + grey: 0x808080, + honeydew: 0xf0fff0, + hotpink: 0xff69b4, + indianred: 0xcd5c5c, + indigo: 0x4b0082, + ivory: 0xfffff0, + khaki: 0xf0e68c, + lavender: 0xe6e6fa, + lavenderblush: 0xfff0f5, + lawngreen: 0x7cfc00, + lemonchiffon: 0xfffacd, + lightblue: 0xadd8e6, + lightcoral: 0xf08080, + lightcyan: 0xe0ffff, + lightgoldenrodyellow: 0xfafad2, + lightgray: 0xd3d3d3, + lightgreen: 0x90ee90, + lightgrey: 0xd3d3d3, + lightpink: 0xffb6c1, + lightsalmon: 0xffa07a, + lightseagreen: 0x20b2aa, + lightskyblue: 0x87cefa, + lightslategray: 0x778899, + lightslategrey: 0x778899, + lightsteelblue: 0xb0c4de, + lightyellow: 0xffffe0, + lime: 0x00ff00, + limegreen: 0x32cd32, + linen: 0xfaf0e6, + magenta: 0xff00ff, + maroon: 0x800000, + mediumaquamarine: 0x66cdaa, + mediumblue: 0x0000cd, + mediumorchid: 0xba55d3, + mediumpurple: 0x9370db, + mediumseagreen: 0x3cb371, + mediumslateblue: 0x7b68ee, + mediumspringgreen: 0x00fa9a, + mediumturquoise: 0x48d1cc, + mediumvioletred: 0xc71585, + midnightblue: 0x191970, + mintcream: 0xf5fffa, + mistyrose: 0xffe4e1, + moccasin: 0xffe4b5, + navajowhite: 0xffdead, + navy: 0x000080, + oldlace: 0xfdf5e6, + olive: 0x808000, + olivedrab: 0x6b8e23, + orange: 0xffa500, + orangered: 0xff4500, + orchid: 0xda70d6, + palegoldenrod: 0xeee8aa, + palegreen: 0x98fb98, + paleturquoise: 0xafeeee, + palevioletred: 0xdb7093, + papayawhip: 0xffefd5, + peachpuff: 0xffdab9, + peru: 0xcd853f, + pink: 0xffc0cb, + plum: 0xdda0dd, + powderblue: 0xb0e0e6, + purple: 0x800080, + rebeccapurple: 0x663399, + red: 0xff0000, + rosybrown: 0xbc8f8f, + royalblue: 0x4169e1, + saddlebrown: 0x8b4513, + salmon: 0xfa8072, + sandybrown: 0xf4a460, + seagreen: 0x2e8b57, + seashell: 0xfff5ee, + sienna: 0xa0522d, + silver: 0xc0c0c0, + skyblue: 0x87ceeb, + slateblue: 0x6a5acd, + slategray: 0x708090, + slategrey: 0x708090, + snow: 0xfffafa, + springgreen: 0x00ff7f, + steelblue: 0x4682b4, + tan: 0xd2b48c, + teal: 0x008080, + thistle: 0xd8bfd8, + tomato: 0xff6347, + turquoise: 0x40e0d0, + violet: 0xee82ee, + wheat: 0xf5deb3, + white: 0xffffff, + whitesmoke: 0xf5f5f5, + yellow: 0xffff00, + yellowgreen: 0x9acd32 + }; + + define(Color, color, { + copy: function(channels) { + return Object.assign(new this.constructor, this, channels); + }, + displayable: function() { + return this.rgb().displayable(); + }, + hex: color_formatHex, // Deprecated! Use color.formatHex. + formatHex: color_formatHex, + formatHsl: color_formatHsl, + formatRgb: color_formatRgb, + toString: color_formatRgb + }); + + function color_formatHex() { + return this.rgb().formatHex(); + } + + function color_formatHsl() { + return hslConvert(this).formatHsl(); + } + + function color_formatRgb() { + return this.rgb().formatRgb(); + } + + function color(format) { + var m, l; + format = (format + "").trim().toLowerCase(); + return (m = reHex.exec(format)) ? (l = m[1].length, m = parseInt(m[1], 16), l === 6 ? rgbn(m) // #ff0000 + : l === 3 ? new Rgb((m >> 8 & 0xf) | (m >> 4 & 0xf0), (m >> 4 & 0xf) | (m & 0xf0), ((m & 0xf) << 4) | (m & 0xf), 1) // #f00 + : l === 8 ? rgba(m >> 24 & 0xff, m >> 16 & 0xff, m >> 8 & 0xff, (m & 0xff) / 0xff) // #ff000000 + : l === 4 ? rgba((m >> 12 & 0xf) | (m >> 8 & 0xf0), (m >> 8 & 0xf) | (m >> 4 & 0xf0), (m >> 4 & 0xf) | (m & 0xf0), (((m & 0xf) << 4) | (m & 0xf)) / 0xff) // #f000 + : null) // invalid hex + : (m = reRgbInteger.exec(format)) ? new Rgb(m[1], m[2], m[3], 1) // rgb(255, 0, 0) + : (m = reRgbPercent.exec(format)) ? new Rgb(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, 1) // rgb(100%, 0%, 0%) + : (m = reRgbaInteger.exec(format)) ? rgba(m[1], m[2], m[3], m[4]) // rgba(255, 0, 0, 1) + : (m = reRgbaPercent.exec(format)) ? rgba(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, m[4]) // rgb(100%, 0%, 0%, 1) + : (m = reHslPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, 1) // hsl(120, 50%, 50%) + : (m = reHslaPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, m[4]) // hsla(120, 50%, 50%, 1) + : named.hasOwnProperty(format) ? rgbn(named[format]) // eslint-disable-line no-prototype-builtins + : format === "transparent" ? new Rgb(NaN, NaN, NaN, 0) + : null; + } + + function rgbn(n) { + return new Rgb(n >> 16 & 0xff, n >> 8 & 0xff, n & 0xff, 1); + } + + function rgba(r, g, b, a) { + if (a <= 0) r = g = b = NaN; + return new Rgb(r, g, b, a); + } + + function rgbConvert(o) { + if (!(o instanceof Color)) o = color(o); + if (!o) return new Rgb; + o = o.rgb(); + return new Rgb(o.r, o.g, o.b, o.opacity); + } + + function rgb(r, g, b, opacity) { + return arguments.length === 1 ? rgbConvert(r) : new Rgb(r, g, b, opacity == null ? 1 : opacity); + } + + function Rgb(r, g, b, opacity) { + this.r = +r; + this.g = +g; + this.b = +b; + this.opacity = +opacity; + } + + define(Rgb, rgb, extend(Color, { + brighter: function(k) { + k = k == null ? brighter : Math.pow(brighter, k); + return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity); + }, + darker: function(k) { + k = k == null ? darker : Math.pow(darker, k); + return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity); + }, + rgb: function() { + return this; + }, + displayable: function() { + return (-0.5 <= this.r && this.r < 255.5) + && (-0.5 <= this.g && this.g < 255.5) + && (-0.5 <= this.b && this.b < 255.5) + && (0 <= this.opacity && this.opacity <= 1); + }, + hex: rgb_formatHex, // Deprecated! Use color.formatHex. + formatHex: rgb_formatHex, + formatRgb: rgb_formatRgb, + toString: rgb_formatRgb + })); + + function rgb_formatHex() { + return "#" + hex(this.r) + hex(this.g) + hex(this.b); + } + + function rgb_formatRgb() { + var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a)); + return (a === 1 ? "rgb(" : "rgba(") + + Math.max(0, Math.min(255, Math.round(this.r) || 0)) + ", " + + Math.max(0, Math.min(255, Math.round(this.g) || 0)) + ", " + + Math.max(0, Math.min(255, Math.round(this.b) || 0)) + + (a === 1 ? ")" : ", " + a + ")"); + } + + function hex(value) { + value = Math.max(0, Math.min(255, Math.round(value) || 0)); + return (value < 16 ? "0" : "") + value.toString(16); + } + + function hsla(h, s, l, a) { + if (a <= 0) h = s = l = NaN; + else if (l <= 0 || l >= 1) h = s = NaN; + else if (s <= 0) h = NaN; + return new Hsl(h, s, l, a); + } + + function hslConvert(o) { + if (o instanceof Hsl) return new Hsl(o.h, o.s, o.l, o.opacity); + if (!(o instanceof Color)) o = color(o); + if (!o) return new Hsl; + if (o instanceof Hsl) return o; + o = o.rgb(); + var r = o.r / 255, + g = o.g / 255, + b = o.b / 255, + min = Math.min(r, g, b), + max = Math.max(r, g, b), + h = NaN, + s = max - min, + l = (max + min) / 2; + if (s) { + if (r === max) h = (g - b) / s + (g < b) * 6; + else if (g === max) h = (b - r) / s + 2; + else h = (r - g) / s + 4; + s /= l < 0.5 ? max + min : 2 - max - min; + h *= 60; + } else { + s = l > 0 && l < 1 ? 0 : h; + } + return new Hsl(h, s, l, o.opacity); + } + + function hsl(h, s, l, opacity) { + return arguments.length === 1 ? hslConvert(h) : new Hsl(h, s, l, opacity == null ? 1 : opacity); + } + + function Hsl(h, s, l, opacity) { + this.h = +h; + this.s = +s; + this.l = +l; + this.opacity = +opacity; + } + + define(Hsl, hsl, extend(Color, { + brighter: function(k) { + k = k == null ? brighter : Math.pow(brighter, k); + return new Hsl(this.h, this.s, this.l * k, this.opacity); + }, + darker: function(k) { + k = k == null ? darker : Math.pow(darker, k); + return new Hsl(this.h, this.s, this.l * k, this.opacity); + }, + rgb: function() { + var h = this.h % 360 + (this.h < 0) * 360, + s = isNaN(h) || isNaN(this.s) ? 0 : this.s, + l = this.l, + m2 = l + (l < 0.5 ? l : 1 - l) * s, + m1 = 2 * l - m2; + return new Rgb( + hsl2rgb(h >= 240 ? h - 240 : h + 120, m1, m2), + hsl2rgb(h, m1, m2), + hsl2rgb(h < 120 ? h + 240 : h - 120, m1, m2), + this.opacity + ); + }, + displayable: function() { + return (0 <= this.s && this.s <= 1 || isNaN(this.s)) + && (0 <= this.l && this.l <= 1) + && (0 <= this.opacity && this.opacity <= 1); + }, + formatHsl: function() { + var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a)); + return (a === 1 ? "hsl(" : "hsla(") + + (this.h || 0) + ", " + + (this.s || 0) * 100 + "%, " + + (this.l || 0) * 100 + "%" + + (a === 1 ? ")" : ", " + a + ")"); + } + })); + + /* From FvD 13.37, CSS Color Module Level 3 */ + function hsl2rgb(h, m1, m2) { + return (h < 60 ? m1 + (m2 - m1) * h / 60 + : h < 180 ? m2 + : h < 240 ? m1 + (m2 - m1) * (240 - h) / 60 + : m1) * 255; + } + + var deg2rad = Math.PI / 180; + var rad2deg = 180 / Math.PI; + + // https://observablehq.com/@mbostock/lab-and-rgb + var K = 18, + Xn = 0.96422, + Yn = 1, + Zn = 0.82521, + t0 = 4 / 29, + t1 = 6 / 29, + t2 = 3 * t1 * t1, + t3 = t1 * t1 * t1; + + function labConvert(o) { + if (o instanceof Lab) return new Lab(o.l, o.a, o.b, o.opacity); + if (o instanceof Hcl) return hcl2lab(o); + if (!(o instanceof Rgb)) o = rgbConvert(o); + var r = rgb2lrgb(o.r), + g = rgb2lrgb(o.g), + b = rgb2lrgb(o.b), + y = xyz2lab((0.2225045 * r + 0.7168786 * g + 0.0606169 * b) / Yn), x, z; + if (r === g && g === b) x = z = y; else { + x = xyz2lab((0.4360747 * r + 0.3850649 * g + 0.1430804 * b) / Xn); + z = xyz2lab((0.0139322 * r + 0.0971045 * g + 0.7141733 * b) / Zn); + } + return new Lab(116 * y - 16, 500 * (x - y), 200 * (y - z), o.opacity); + } + + function gray(l, opacity) { + return new Lab(l, 0, 0, opacity == null ? 1 : opacity); + } + + function lab(l, a, b, opacity) { + return arguments.length === 1 ? labConvert(l) : new Lab(l, a, b, opacity == null ? 1 : opacity); + } + + function Lab(l, a, b, opacity) { + this.l = +l; + this.a = +a; + this.b = +b; + this.opacity = +opacity; + } + + define(Lab, lab, extend(Color, { + brighter: function(k) { + return new Lab(this.l + K * (k == null ? 1 : k), this.a, this.b, this.opacity); + }, + darker: function(k) { + return new Lab(this.l - K * (k == null ? 1 : k), this.a, this.b, this.opacity); + }, + rgb: function() { + var y = (this.l + 16) / 116, + x = isNaN(this.a) ? y : y + this.a / 500, + z = isNaN(this.b) ? y : y - this.b / 200; + x = Xn * lab2xyz(x); + y = Yn * lab2xyz(y); + z = Zn * lab2xyz(z); + return new Rgb( + lrgb2rgb( 3.1338561 * x - 1.6168667 * y - 0.4906146 * z), + lrgb2rgb(-0.9787684 * x + 1.9161415 * y + 0.0334540 * z), + lrgb2rgb( 0.0719453 * x - 0.2289914 * y + 1.4052427 * z), + this.opacity + ); + } + })); + + function xyz2lab(t) { + return t > t3 ? Math.pow(t, 1 / 3) : t / t2 + t0; + } + + function lab2xyz(t) { + return t > t1 ? t * t * t : t2 * (t - t0); + } + + function lrgb2rgb(x) { + return 255 * (x <= 0.0031308 ? 12.92 * x : 1.055 * Math.pow(x, 1 / 2.4) - 0.055); + } + + function rgb2lrgb(x) { + return (x /= 255) <= 0.04045 ? x / 12.92 : Math.pow((x + 0.055) / 1.055, 2.4); + } + + function hclConvert(o) { + if (o instanceof Hcl) return new Hcl(o.h, o.c, o.l, o.opacity); + if (!(o instanceof Lab)) o = labConvert(o); + if (o.a === 0 && o.b === 0) return new Hcl(NaN, 0 < o.l && o.l < 100 ? 0 : NaN, o.l, o.opacity); + var h = Math.atan2(o.b, o.a) * rad2deg; + return new Hcl(h < 0 ? h + 360 : h, Math.sqrt(o.a * o.a + o.b * o.b), o.l, o.opacity); + } + + function lch(l, c, h, opacity) { + return arguments.length === 1 ? hclConvert(l) : new Hcl(h, c, l, opacity == null ? 1 : opacity); + } + + function hcl(h, c, l, opacity) { + return arguments.length === 1 ? hclConvert(h) : new Hcl(h, c, l, opacity == null ? 1 : opacity); + } + + function Hcl(h, c, l, opacity) { + this.h = +h; + this.c = +c; + this.l = +l; + this.opacity = +opacity; + } + + function hcl2lab(o) { + if (isNaN(o.h)) return new Lab(o.l, 0, 0, o.opacity); + var h = o.h * deg2rad; + return new Lab(o.l, Math.cos(h) * o.c, Math.sin(h) * o.c, o.opacity); + } + + define(Hcl, hcl, extend(Color, { + brighter: function(k) { + return new Hcl(this.h, this.c, this.l + K * (k == null ? 1 : k), this.opacity); + }, + darker: function(k) { + return new Hcl(this.h, this.c, this.l - K * (k == null ? 1 : k), this.opacity); + }, + rgb: function() { + return hcl2lab(this).rgb(); + } + })); + + var A = -0.14861, + B = +1.78277, + C = -0.29227, + D = -0.90649, + E = +1.97294, + ED = E * D, + EB = E * B, + BC_DA = B * C - D * A; + + function cubehelixConvert(o) { + if (o instanceof Cubehelix) return new Cubehelix(o.h, o.s, o.l, o.opacity); + if (!(o instanceof Rgb)) o = rgbConvert(o); + var r = o.r / 255, + g = o.g / 255, + b = o.b / 255, + l = (BC_DA * b + ED * r - EB * g) / (BC_DA + ED - EB), + bl = b - l, + k = (E * (g - l) - C * bl) / D, + s = Math.sqrt(k * k + bl * bl) / (E * l * (1 - l)), // NaN if l=0 or l=1 + h = s ? Math.atan2(k, bl) * rad2deg - 120 : NaN; + return new Cubehelix(h < 0 ? h + 360 : h, s, l, o.opacity); + } + + function cubehelix(h, s, l, opacity) { + return arguments.length === 1 ? cubehelixConvert(h) : new Cubehelix(h, s, l, opacity == null ? 1 : opacity); + } + + function Cubehelix(h, s, l, opacity) { + this.h = +h; + this.s = +s; + this.l = +l; + this.opacity = +opacity; + } + + define(Cubehelix, cubehelix, extend(Color, { + brighter: function(k) { + k = k == null ? brighter : Math.pow(brighter, k); + return new Cubehelix(this.h, this.s, this.l * k, this.opacity); + }, + darker: function(k) { + k = k == null ? darker : Math.pow(darker, k); + return new Cubehelix(this.h, this.s, this.l * k, this.opacity); + }, + rgb: function() { + var h = isNaN(this.h) ? 0 : (this.h + 120) * deg2rad, + l = +this.l, + a = isNaN(this.s) ? 0 : this.s * l * (1 - l), + cosh = Math.cos(h), + sinh = Math.sin(h); + return new Rgb( + 255 * (l + a * (A * cosh + B * sinh)), + 255 * (l + a * (C * cosh + D * sinh)), + 255 * (l + a * (E * cosh)), + this.opacity + ); + } + })); + + function basis(t1, v0, v1, v2, v3) { + var t2 = t1 * t1, t3 = t2 * t1; + return ((1 - 3 * t1 + 3 * t2 - t3) * v0 + + (4 - 6 * t2 + 3 * t3) * v1 + + (1 + 3 * t1 + 3 * t2 - 3 * t3) * v2 + + t3 * v3) / 6; + } + + function basis$1(values) { + var n = values.length - 1; + return function(t) { + var i = t <= 0 ? (t = 0) : t >= 1 ? (t = 1, n - 1) : Math.floor(t * n), + v1 = values[i], + v2 = values[i + 1], + v0 = i > 0 ? values[i - 1] : 2 * v1 - v2, + v3 = i < n - 1 ? values[i + 2] : 2 * v2 - v1; + return basis((t - i / n) * n, v0, v1, v2, v3); + }; + } + + function basisClosed(values) { + var n = values.length; + return function(t) { + var i = Math.floor(((t %= 1) < 0 ? ++t : t) * n), + v0 = values[(i + n - 1) % n], + v1 = values[i % n], + v2 = values[(i + 1) % n], + v3 = values[(i + 2) % n]; + return basis((t - i / n) * n, v0, v1, v2, v3); + }; + } + + function constant$3(x) { + return function() { + return x; + }; + } + + function linear(a, d) { + return function(t) { + return a + t * d; + }; + } + + function exponential(a, b, y) { + return a = Math.pow(a, y), b = Math.pow(b, y) - a, y = 1 / y, function(t) { + return Math.pow(a + t * b, y); + }; + } + + function hue(a, b) { + var d = b - a; + return d ? linear(a, d > 180 || d < -180 ? d - 360 * Math.round(d / 360) : d) : constant$3(isNaN(a) ? b : a); + } + + function gamma(y) { + return (y = +y) === 1 ? nogamma : function(a, b) { + return b - a ? exponential(a, b, y) : constant$3(isNaN(a) ? b : a); + }; + } + + function nogamma(a, b) { + var d = b - a; + return d ? linear(a, d) : constant$3(isNaN(a) ? b : a); + } + + var interpolateRgb = (function rgbGamma(y) { + var color = gamma(y); + + function rgb$1(start, end) { + var r = color((start = rgb(start)).r, (end = rgb(end)).r), + g = color(start.g, end.g), + b = color(start.b, end.b), + opacity = nogamma(start.opacity, end.opacity); + return function(t) { + start.r = r(t); + start.g = g(t); + start.b = b(t); + start.opacity = opacity(t); + return start + ""; + }; + } + + rgb$1.gamma = rgbGamma; + + return rgb$1; + })(1); + + function rgbSpline(spline) { + return function(colors) { + var n = colors.length, + r = new Array(n), + g = new Array(n), + b = new Array(n), + i, color; + for (i = 0; i < n; ++i) { + color = rgb(colors[i]); + r[i] = color.r || 0; + g[i] = color.g || 0; + b[i] = color.b || 0; + } + r = spline(r); + g = spline(g); + b = spline(b); + color.opacity = 1; + return function(t) { + color.r = r(t); + color.g = g(t); + color.b = b(t); + return color + ""; + }; + }; + } + + var rgbBasis = rgbSpline(basis$1); + var rgbBasisClosed = rgbSpline(basisClosed); + + function numberArray(a, b) { + if (!b) b = []; + var n = a ? Math.min(b.length, a.length) : 0, + c = b.slice(), + i; + return function(t) { + for (i = 0; i < n; ++i) c[i] = a[i] * (1 - t) + b[i] * t; + return c; + }; + } + + function isNumberArray(x) { + return ArrayBuffer.isView(x) && !(x instanceof DataView); + } + + function array$1(a, b) { + return (isNumberArray(b) ? numberArray : genericArray)(a, b); + } + + function genericArray(a, b) { + var nb = b ? b.length : 0, + na = a ? Math.min(nb, a.length) : 0, + x = new Array(na), + c = new Array(nb), + i; + + for (i = 0; i < na; ++i) x[i] = interpolateValue(a[i], b[i]); + for (; i < nb; ++i) c[i] = b[i]; + + return function(t) { + for (i = 0; i < na; ++i) c[i] = x[i](t); + return c; + }; + } + + function date(a, b) { + var d = new Date; + return a = +a, b = +b, function(t) { + return d.setTime(a * (1 - t) + b * t), d; + }; + } + + function interpolateNumber(a, b) { + return a = +a, b = +b, function(t) { + return a * (1 - t) + b * t; + }; + } + + function object(a, b) { + var i = {}, + c = {}, + k; + + if (a === null || typeof a !== "object") a = {}; + if (b === null || typeof b !== "object") b = {}; + + for (k in b) { + if (k in a) { + i[k] = interpolateValue(a[k], b[k]); + } else { + c[k] = b[k]; + } + } + + return function(t) { + for (k in i) c[k] = i[k](t); + return c; + }; + } + + var reA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g, + reB = new RegExp(reA.source, "g"); + + function zero(b) { + return function() { + return b; + }; + } + + function one(b) { + return function(t) { + return b(t) + ""; + }; + } + + function interpolateString(a, b) { + var bi = reA.lastIndex = reB.lastIndex = 0, // scan index for next number in b + am, // current match in a + bm, // current match in b + bs, // string preceding current number in b, if any + i = -1, // index in s + s = [], // string constants and placeholders + q = []; // number interpolators + + // Coerce inputs to strings. + a = a + "", b = b + ""; + + // Interpolate pairs of numbers in a & b. + while ((am = reA.exec(a)) + && (bm = reB.exec(b))) { + if ((bs = bm.index) > bi) { // a string precedes the next number in b + bs = b.slice(bi, bs); + if (s[i]) s[i] += bs; // coalesce with previous string + else s[++i] = bs; + } + if ((am = am[0]) === (bm = bm[0])) { // numbers in a & b match + if (s[i]) s[i] += bm; // coalesce with previous string + else s[++i] = bm; + } else { // interpolate non-matching numbers + s[++i] = null; + q.push({i: i, x: interpolateNumber(am, bm)}); + } + bi = reB.lastIndex; + } + + // Add remains of b. + if (bi < b.length) { + bs = b.slice(bi); + if (s[i]) s[i] += bs; // coalesce with previous string + else s[++i] = bs; + } + + // Special optimization for only a single match. + // Otherwise, interpolate each of the numbers and rejoin the string. + return s.length < 2 ? (q[0] + ? one(q[0].x) + : zero(b)) + : (b = q.length, function(t) { + for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t); + return s.join(""); + }); + } + + function interpolateValue(a, b) { + var t = typeof b, c; + return b == null || t === "boolean" ? constant$3(b) + : (t === "number" ? interpolateNumber + : t === "string" ? ((c = color(b)) ? (b = c, interpolateRgb) : interpolateString) + : b instanceof color ? interpolateRgb + : b instanceof Date ? date + : isNumberArray(b) ? numberArray + : Array.isArray(b) ? genericArray + : typeof b.valueOf !== "function" && typeof b.toString !== "function" || isNaN(b) ? object + : interpolateNumber)(a, b); + } + + function discrete(range) { + var n = range.length; + return function(t) { + return range[Math.max(0, Math.min(n - 1, Math.floor(t * n)))]; + }; + } + + function hue$1(a, b) { + var i = hue(+a, +b); + return function(t) { + var x = i(t); + return x - 360 * Math.floor(x / 360); + }; + } + + function interpolateRound(a, b) { + return a = +a, b = +b, function(t) { + return Math.round(a * (1 - t) + b * t); + }; + } + + var degrees = 180 / Math.PI; + + var identity$2 = { + translateX: 0, + translateY: 0, + rotate: 0, + skewX: 0, + scaleX: 1, + scaleY: 1 + }; + + function decompose(a, b, c, d, e, f) { + var scaleX, scaleY, skewX; + if (scaleX = Math.sqrt(a * a + b * b)) a /= scaleX, b /= scaleX; + if (skewX = a * c + b * d) c -= a * skewX, d -= b * skewX; + if (scaleY = Math.sqrt(c * c + d * d)) c /= scaleY, d /= scaleY, skewX /= scaleY; + if (a * d < b * c) a = -a, b = -b, skewX = -skewX, scaleX = -scaleX; + return { + translateX: e, + translateY: f, + rotate: Math.atan2(b, a) * degrees, + skewX: Math.atan(skewX) * degrees, + scaleX: scaleX, + scaleY: scaleY + }; + } + + var cssNode, + cssRoot, + cssView, + svgNode; + + function parseCss(value) { + if (value === "none") return identity$2; + if (!cssNode) cssNode = document.createElement("DIV"), cssRoot = document.documentElement, cssView = document.defaultView; + cssNode.style.transform = value; + value = cssView.getComputedStyle(cssRoot.appendChild(cssNode), null).getPropertyValue("transform"); + cssRoot.removeChild(cssNode); + value = value.slice(7, -1).split(","); + return decompose(+value[0], +value[1], +value[2], +value[3], +value[4], +value[5]); + } + + function parseSvg(value) { + if (value == null) return identity$2; + if (!svgNode) svgNode = document.createElementNS("http://www.w3.org/2000/svg", "g"); + svgNode.setAttribute("transform", value); + if (!(value = svgNode.transform.baseVal.consolidate())) return identity$2; + value = value.matrix; + return decompose(value.a, value.b, value.c, value.d, value.e, value.f); + } + + function interpolateTransform(parse, pxComma, pxParen, degParen) { + + function pop(s) { + return s.length ? s.pop() + " " : ""; + } + + function translate(xa, ya, xb, yb, s, q) { + if (xa !== xb || ya !== yb) { + var i = s.push("translate(", null, pxComma, null, pxParen); + q.push({i: i - 4, x: interpolateNumber(xa, xb)}, {i: i - 2, x: interpolateNumber(ya, yb)}); + } else if (xb || yb) { + s.push("translate(" + xb + pxComma + yb + pxParen); + } + } + + function rotate(a, b, s, q) { + if (a !== b) { + if (a - b > 180) b += 360; else if (b - a > 180) a += 360; // shortest path + q.push({i: s.push(pop(s) + "rotate(", null, degParen) - 2, x: interpolateNumber(a, b)}); + } else if (b) { + s.push(pop(s) + "rotate(" + b + degParen); + } + } + + function skewX(a, b, s, q) { + if (a !== b) { + q.push({i: s.push(pop(s) + "skewX(", null, degParen) - 2, x: interpolateNumber(a, b)}); + } else if (b) { + s.push(pop(s) + "skewX(" + b + degParen); + } + } + + function scale(xa, ya, xb, yb, s, q) { + if (xa !== xb || ya !== yb) { + var i = s.push(pop(s) + "scale(", null, ",", null, ")"); + q.push({i: i - 4, x: interpolateNumber(xa, xb)}, {i: i - 2, x: interpolateNumber(ya, yb)}); + } else if (xb !== 1 || yb !== 1) { + s.push(pop(s) + "scale(" + xb + "," + yb + ")"); + } + } + + return function(a, b) { + var s = [], // string constants and placeholders + q = []; // number interpolators + a = parse(a), b = parse(b); + translate(a.translateX, a.translateY, b.translateX, b.translateY, s, q); + rotate(a.rotate, b.rotate, s, q); + skewX(a.skewX, b.skewX, s, q); + scale(a.scaleX, a.scaleY, b.scaleX, b.scaleY, s, q); + a = b = null; // gc + return function(t) { + var i = -1, n = q.length, o; + while (++i < n) s[(o = q[i]).i] = o.x(t); + return s.join(""); + }; + }; + } + + var interpolateTransformCss = interpolateTransform(parseCss, "px, ", "px)", "deg)"); + var interpolateTransformSvg = interpolateTransform(parseSvg, ", ", ")", ")"); + + var rho = Math.SQRT2, + rho2 = 2, + rho4 = 4, + epsilon2 = 1e-12; + + function cosh(x) { + return ((x = Math.exp(x)) + 1 / x) / 2; + } + + function sinh(x) { + return ((x = Math.exp(x)) - 1 / x) / 2; + } + + function tanh(x) { + return ((x = Math.exp(2 * x)) - 1) / (x + 1); + } + + // p0 = [ux0, uy0, w0] + // p1 = [ux1, uy1, w1] + function interpolateZoom(p0, p1) { + var ux0 = p0[0], uy0 = p0[1], w0 = p0[2], + ux1 = p1[0], uy1 = p1[1], w1 = p1[2], + dx = ux1 - ux0, + dy = uy1 - uy0, + d2 = dx * dx + dy * dy, + i, + S; + + // Special case for u0 ≅ u1. + if (d2 < epsilon2) { + S = Math.log(w1 / w0) / rho; + i = function(t) { + return [ + ux0 + t * dx, + uy0 + t * dy, + w0 * Math.exp(rho * t * S) + ]; + }; + } + + // General case. + else { + var d1 = Math.sqrt(d2), + b0 = (w1 * w1 - w0 * w0 + rho4 * d2) / (2 * w0 * rho2 * d1), + b1 = (w1 * w1 - w0 * w0 - rho4 * d2) / (2 * w1 * rho2 * d1), + r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0), + r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1); + S = (r1 - r0) / rho; + i = function(t) { + var s = t * S, + coshr0 = cosh(r0), + u = w0 / (rho2 * d1) * (coshr0 * tanh(rho * s + r0) - sinh(r0)); + return [ + ux0 + u * dx, + uy0 + u * dy, + w0 * coshr0 / cosh(rho * s + r0) + ]; + }; + } + + i.duration = S * 1000; + + return i; + } + + function hsl$1(hue) { + return function(start, end) { + var h = hue((start = hsl(start)).h, (end = hsl(end)).h), + s = nogamma(start.s, end.s), + l = nogamma(start.l, end.l), + opacity = nogamma(start.opacity, end.opacity); + return function(t) { + start.h = h(t); + start.s = s(t); + start.l = l(t); + start.opacity = opacity(t); + return start + ""; + }; + } + } + + var hsl$2 = hsl$1(hue); + var hslLong = hsl$1(nogamma); + + function lab$1(start, end) { + var l = nogamma((start = lab(start)).l, (end = lab(end)).l), + a = nogamma(start.a, end.a), + b = nogamma(start.b, end.b), + opacity = nogamma(start.opacity, end.opacity); + return function(t) { + start.l = l(t); + start.a = a(t); + start.b = b(t); + start.opacity = opacity(t); + return start + ""; + }; + } + + function hcl$1(hue) { + return function(start, end) { + var h = hue((start = hcl(start)).h, (end = hcl(end)).h), + c = nogamma(start.c, end.c), + l = nogamma(start.l, end.l), + opacity = nogamma(start.opacity, end.opacity); + return function(t) { + start.h = h(t); + start.c = c(t); + start.l = l(t); + start.opacity = opacity(t); + return start + ""; + }; + } + } + + var hcl$2 = hcl$1(hue); + var hclLong = hcl$1(nogamma); + + function cubehelix$1(hue) { + return (function cubehelixGamma(y) { + y = +y; + + function cubehelix$1(start, end) { + var h = hue((start = cubehelix(start)).h, (end = cubehelix(end)).h), + s = nogamma(start.s, end.s), + l = nogamma(start.l, end.l), + opacity = nogamma(start.opacity, end.opacity); + return function(t) { + start.h = h(t); + start.s = s(t); + start.l = l(Math.pow(t, y)); + start.opacity = opacity(t); + return start + ""; + }; + } + + cubehelix$1.gamma = cubehelixGamma; + + return cubehelix$1; + })(1); + } + + var cubehelix$2 = cubehelix$1(hue); + var cubehelixLong = cubehelix$1(nogamma); + + function piecewise(interpolate, values) { + var i = 0, n = values.length - 1, v = values[0], I = new Array(n < 0 ? 0 : n); + while (i < n) I[i] = interpolate(v, v = values[++i]); + return function(t) { + var i = Math.max(0, Math.min(n - 1, Math.floor(t *= n))); + return I[i](t - i); + }; + } + + function quantize(interpolator, n) { + var samples = new Array(n); + for (var i = 0; i < n; ++i) samples[i] = interpolator(i / (n - 1)); + return samples; + } + + var frame = 0, // is an animation frame pending? + timeout = 0, // is a timeout pending? + interval = 0, // are any timers active? + pokeDelay = 1000, // how frequently we check for clock skew + taskHead, + taskTail, + clockLast = 0, + clockNow = 0, + clockSkew = 0, + clock = typeof performance === "object" && performance.now ? performance : Date, + setFrame = typeof window === "object" && window.requestAnimationFrame ? window.requestAnimationFrame.bind(window) : function(f) { setTimeout(f, 17); }; + + function now() { + return clockNow || (setFrame(clearNow), clockNow = clock.now() + clockSkew); + } + + function clearNow() { + clockNow = 0; + } + + function Timer() { + this._call = + this._time = + this._next = null; + } + + Timer.prototype = timer.prototype = { + constructor: Timer, + restart: function(callback, delay, time) { + if (typeof callback !== "function") throw new TypeError("callback is not a function"); + time = (time == null ? now() : +time) + (delay == null ? 0 : +delay); + if (!this._next && taskTail !== this) { + if (taskTail) taskTail._next = this; + else taskHead = this; + taskTail = this; + } + this._call = callback; + this._time = time; + sleep(); + }, + stop: function() { + if (this._call) { + this._call = null; + this._time = Infinity; + sleep(); + } + } + }; + + function timer(callback, delay, time) { + var t = new Timer; + t.restart(callback, delay, time); + return t; + } + + function timerFlush() { + now(); // Get the current time, if not already set. + ++frame; // Pretend we’ve set an alarm, if we haven’t already. + var t = taskHead, e; + while (t) { + if ((e = clockNow - t._time) >= 0) t._call.call(null, e); + t = t._next; + } + --frame; + } + + function wake() { + clockNow = (clockLast = clock.now()) + clockSkew; + frame = timeout = 0; + try { + timerFlush(); + } finally { + frame = 0; + nap(); + clockNow = 0; + } + } + + function poke() { + var now = clock.now(), delay = now - clockLast; + if (delay > pokeDelay) clockSkew -= delay, clockLast = now; + } + + function nap() { + var t0, t1 = taskHead, t2, time = Infinity; + while (t1) { + if (t1._call) { + if (time > t1._time) time = t1._time; + t0 = t1, t1 = t1._next; + } else { + t2 = t1._next, t1._next = null; + t1 = t0 ? t0._next = t2 : taskHead = t2; + } + } + taskTail = t0; + sleep(time); + } + + function sleep(time) { + if (frame) return; // Soonest alarm already set, or will be. + if (timeout) timeout = clearTimeout(timeout); + var delay = time - clockNow; // Strictly less than if we recomputed clockNow. + if (delay > 24) { + if (time < Infinity) timeout = setTimeout(wake, time - clock.now() - clockSkew); + if (interval) interval = clearInterval(interval); + } else { + if (!interval) clockLast = clock.now(), interval = setInterval(poke, pokeDelay); + frame = 1, setFrame(wake); + } + } + + function timeout$1(callback, delay, time) { + var t = new Timer; + delay = delay == null ? 0 : +delay; + t.restart(function(elapsed) { + t.stop(); + callback(elapsed + delay); + }, delay, time); + return t; + } + + function interval$1(callback, delay, time) { + var t = new Timer, total = delay; + if (delay == null) return t.restart(callback, delay, time), t; + delay = +delay, time = time == null ? now() : +time; + t.restart(function tick(elapsed) { + elapsed += total; + t.restart(tick, total += delay, time); + callback(elapsed); + }, delay, time); + return t; + } + + var emptyOn = dispatch("start", "end", "cancel", "interrupt"); + var emptyTween = []; + + var CREATED = 0; + var SCHEDULED = 1; + var STARTING = 2; + var STARTED = 3; + var RUNNING = 4; + var ENDING = 5; + var ENDED = 6; + + function schedule(node, name, id, index, group, timing) { + var schedules = node.__transition; + if (!schedules) node.__transition = {}; + else if (id in schedules) return; + create$1(node, id, { + name: name, + index: index, // For context during callback. + group: group, // For context during callback. + on: emptyOn, + tween: emptyTween, + time: timing.time, + delay: timing.delay, + duration: timing.duration, + ease: timing.ease, + timer: null, + state: CREATED + }); + } + + function init(node, id) { + var schedule = get$1(node, id); + if (schedule.state > CREATED) throw new Error("too late; already scheduled"); + return schedule; + } + + function set$1(node, id) { + var schedule = get$1(node, id); + if (schedule.state > STARTED) throw new Error("too late; already running"); + return schedule; + } + + function get$1(node, id) { + var schedule = node.__transition; + if (!schedule || !(schedule = schedule[id])) throw new Error("transition not found"); + return schedule; + } + + function create$1(node, id, self) { + var schedules = node.__transition, + tween; + + // Initialize the self timer when the transition is created. + // Note the actual delay is not known until the first callback! + schedules[id] = self; + self.timer = timer(schedule, 0, self.time); + + function schedule(elapsed) { + self.state = SCHEDULED; + self.timer.restart(start, self.delay, self.time); + + // If the elapsed delay is less than our first sleep, start immediately. + if (self.delay <= elapsed) start(elapsed - self.delay); + } + + function start(elapsed) { + var i, j, n, o; + + // If the state is not SCHEDULED, then we previously errored on start. + if (self.state !== SCHEDULED) return stop(); + + for (i in schedules) { + o = schedules[i]; + if (o.name !== self.name) continue; + + // While this element already has a starting transition during this frame, + // defer starting an interrupting transition until that transition has a + // chance to tick (and possibly end); see d3/d3-transition#54! + if (o.state === STARTED) return timeout$1(start); + + // Interrupt the active transition, if any. + if (o.state === RUNNING) { + o.state = ENDED; + o.timer.stop(); + o.on.call("interrupt", node, node.__data__, o.index, o.group); + delete schedules[i]; + } + + // Cancel any pre-empted transitions. + else if (+i < id) { + o.state = ENDED; + o.timer.stop(); + o.on.call("cancel", node, node.__data__, o.index, o.group); + delete schedules[i]; + } + } + + // Defer the first tick to end of the current frame; see d3/d3#1576. + // Note the transition may be canceled after start and before the first tick! + // Note this must be scheduled before the start event; see d3/d3-transition#16! + // Assuming this is successful, subsequent callbacks go straight to tick. + timeout$1(function() { + if (self.state === STARTED) { + self.state = RUNNING; + self.timer.restart(tick, self.delay, self.time); + tick(elapsed); + } + }); + + // Dispatch the start event. + // Note this must be done before the tween are initialized. + self.state = STARTING; + self.on.call("start", node, node.__data__, self.index, self.group); + if (self.state !== STARTING) return; // interrupted + self.state = STARTED; + + // Initialize the tween, deleting null tween. + tween = new Array(n = self.tween.length); + for (i = 0, j = -1; i < n; ++i) { + if (o = self.tween[i].value.call(node, node.__data__, self.index, self.group)) { + tween[++j] = o; + } + } + tween.length = j + 1; + } + + function tick(elapsed) { + var t = elapsed < self.duration ? self.ease.call(null, elapsed / self.duration) : (self.timer.restart(stop), self.state = ENDING, 1), + i = -1, + n = tween.length; + + while (++i < n) { + tween[i].call(node, t); + } + + // Dispatch the end event. + if (self.state === ENDING) { + self.on.call("end", node, node.__data__, self.index, self.group); + stop(); + } + } + + function stop() { + self.state = ENDED; + self.timer.stop(); + delete schedules[id]; + for (var i in schedules) return; // eslint-disable-line no-unused-vars + delete node.__transition; + } + } + + function interrupt(node, name) { + var schedules = node.__transition, + schedule, + active, + empty = true, + i; + + if (!schedules) return; + + name = name == null ? null : name + ""; + + for (i in schedules) { + if ((schedule = schedules[i]).name !== name) { empty = false; continue; } + active = schedule.state > STARTING && schedule.state < ENDING; + schedule.state = ENDED; + schedule.timer.stop(); + schedule.on.call(active ? "interrupt" : "cancel", node, node.__data__, schedule.index, schedule.group); + delete schedules[i]; + } + + if (empty) delete node.__transition; + } + + function selection_interrupt(name) { + return this.each(function() { + interrupt(this, name); + }); + } + + function tweenRemove(id, name) { + var tween0, tween1; + return function() { + var schedule = set$1(this, id), + tween = schedule.tween; + + // If this node shared tween with the previous node, + // just assign the updated shared tween and we’re done! + // Otherwise, copy-on-write. + if (tween !== tween0) { + tween1 = tween0 = tween; + for (var i = 0, n = tween1.length; i < n; ++i) { + if (tween1[i].name === name) { + tween1 = tween1.slice(); + tween1.splice(i, 1); + break; + } + } + } + + schedule.tween = tween1; + }; + } + + function tweenFunction(id, name, value) { + var tween0, tween1; + if (typeof value !== "function") throw new Error; + return function() { + var schedule = set$1(this, id), + tween = schedule.tween; + + // If this node shared tween with the previous node, + // just assign the updated shared tween and we’re done! + // Otherwise, copy-on-write. + if (tween !== tween0) { + tween1 = (tween0 = tween).slice(); + for (var t = {name: name, value: value}, i = 0, n = tween1.length; i < n; ++i) { + if (tween1[i].name === name) { + tween1[i] = t; + break; + } + } + if (i === n) tween1.push(t); + } + + schedule.tween = tween1; + }; + } + + function transition_tween(name, value) { + var id = this._id; + + name += ""; + + if (arguments.length < 2) { + var tween = get$1(this.node(), id).tween; + for (var i = 0, n = tween.length, t; i < n; ++i) { + if ((t = tween[i]).name === name) { + return t.value; + } + } + return null; + } + + return this.each((value == null ? tweenRemove : tweenFunction)(id, name, value)); + } + + function tweenValue(transition, name, value) { + var id = transition._id; + + transition.each(function() { + var schedule = set$1(this, id); + (schedule.value || (schedule.value = {}))[name] = value.apply(this, arguments); + }); + + return function(node) { + return get$1(node, id).value[name]; + }; + } + + function interpolate(a, b) { + var c; + return (typeof b === "number" ? interpolateNumber + : b instanceof color ? interpolateRgb + : (c = color(b)) ? (b = c, interpolateRgb) + : interpolateString)(a, b); + } + + function attrRemove$1(name) { + return function() { + this.removeAttribute(name); + }; + } + + function attrRemoveNS$1(fullname) { + return function() { + this.removeAttributeNS(fullname.space, fullname.local); + }; + } + + function attrConstant$1(name, interpolate, value1) { + var string00, + string1 = value1 + "", + interpolate0; + return function() { + var string0 = this.getAttribute(name); + return string0 === string1 ? null + : string0 === string00 ? interpolate0 + : interpolate0 = interpolate(string00 = string0, value1); + }; + } + + function attrConstantNS$1(fullname, interpolate, value1) { + var string00, + string1 = value1 + "", + interpolate0; + return function() { + var string0 = this.getAttributeNS(fullname.space, fullname.local); + return string0 === string1 ? null + : string0 === string00 ? interpolate0 + : interpolate0 = interpolate(string00 = string0, value1); + }; + } + + function attrFunction$1(name, interpolate, value) { + var string00, + string10, + interpolate0; + return function() { + var string0, value1 = value(this), string1; + if (value1 == null) return void this.removeAttribute(name); + string0 = this.getAttribute(name); + string1 = value1 + ""; + return string0 === string1 ? null + : string0 === string00 && string1 === string10 ? interpolate0 + : (string10 = string1, interpolate0 = interpolate(string00 = string0, value1)); + }; + } + + function attrFunctionNS$1(fullname, interpolate, value) { + var string00, + string10, + interpolate0; + return function() { + var string0, value1 = value(this), string1; + if (value1 == null) return void this.removeAttributeNS(fullname.space, fullname.local); + string0 = this.getAttributeNS(fullname.space, fullname.local); + string1 = value1 + ""; + return string0 === string1 ? null + : string0 === string00 && string1 === string10 ? interpolate0 + : (string10 = string1, interpolate0 = interpolate(string00 = string0, value1)); + }; + } + + function transition_attr(name, value) { + var fullname = namespace(name), i = fullname === "transform" ? interpolateTransformSvg : interpolate; + return this.attrTween(name, typeof value === "function" + ? (fullname.local ? attrFunctionNS$1 : attrFunction$1)(fullname, i, tweenValue(this, "attr." + name, value)) + : value == null ? (fullname.local ? attrRemoveNS$1 : attrRemove$1)(fullname) + : (fullname.local ? attrConstantNS$1 : attrConstant$1)(fullname, i, value)); + } + + function attrInterpolate(name, i) { + return function(t) { + this.setAttribute(name, i.call(this, t)); + }; + } + + function attrInterpolateNS(fullname, i) { + return function(t) { + this.setAttributeNS(fullname.space, fullname.local, i.call(this, t)); + }; + } + + function attrTweenNS(fullname, value) { + var t0, i0; + function tween() { + var i = value.apply(this, arguments); + if (i !== i0) t0 = (i0 = i) && attrInterpolateNS(fullname, i); + return t0; + } + tween._value = value; + return tween; + } + + function attrTween(name, value) { + var t0, i0; + function tween() { + var i = value.apply(this, arguments); + if (i !== i0) t0 = (i0 = i) && attrInterpolate(name, i); + return t0; + } + tween._value = value; + return tween; + } + + function transition_attrTween(name, value) { + var key = "attr." + name; + if (arguments.length < 2) return (key = this.tween(key)) && key._value; + if (value == null) return this.tween(key, null); + if (typeof value !== "function") throw new Error; + var fullname = namespace(name); + return this.tween(key, (fullname.local ? attrTweenNS : attrTween)(fullname, value)); + } + + function delayFunction(id, value) { + return function() { + init(this, id).delay = +value.apply(this, arguments); + }; + } + + function delayConstant(id, value) { + return value = +value, function() { + init(this, id).delay = value; + }; + } + + function transition_delay(value) { + var id = this._id; + + return arguments.length + ? this.each((typeof value === "function" + ? delayFunction + : delayConstant)(id, value)) + : get$1(this.node(), id).delay; + } + + function durationFunction(id, value) { + return function() { + set$1(this, id).duration = +value.apply(this, arguments); + }; + } + + function durationConstant(id, value) { + return value = +value, function() { + set$1(this, id).duration = value; + }; + } + + function transition_duration(value) { + var id = this._id; + + return arguments.length + ? this.each((typeof value === "function" + ? durationFunction + : durationConstant)(id, value)) + : get$1(this.node(), id).duration; + } + + function easeConstant(id, value) { + if (typeof value !== "function") throw new Error; + return function() { + set$1(this, id).ease = value; + }; + } + + function transition_ease(value) { + var id = this._id; + + return arguments.length + ? this.each(easeConstant(id, value)) + : get$1(this.node(), id).ease; + } + + function transition_filter(match) { + if (typeof match !== "function") match = matcher(match); + + for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) { + if ((node = group[i]) && match.call(node, node.__data__, i, group)) { + subgroup.push(node); + } + } + } + + return new Transition(subgroups, this._parents, this._name, this._id); + } + + function transition_merge(transition) { + if (transition._id !== this._id) throw new Error; + + for (var groups0 = this._groups, groups1 = transition._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) { + for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) { + if (node = group0[i] || group1[i]) { + merge[i] = node; + } + } + } + + for (; j < m0; ++j) { + merges[j] = groups0[j]; + } + + return new Transition(merges, this._parents, this._name, this._id); + } + + function start(name) { + return (name + "").trim().split(/^|\s+/).every(function(t) { + var i = t.indexOf("."); + if (i >= 0) t = t.slice(0, i); + return !t || t === "start"; + }); + } + + function onFunction(id, name, listener) { + var on0, on1, sit = start(name) ? init : set$1; + return function() { + var schedule = sit(this, id), + on = schedule.on; + + // If this node shared a dispatch with the previous node, + // just assign the updated shared dispatch and we’re done! + // Otherwise, copy-on-write. + if (on !== on0) (on1 = (on0 = on).copy()).on(name, listener); + + schedule.on = on1; + }; + } + + function transition_on(name, listener) { + var id = this._id; + + return arguments.length < 2 + ? get$1(this.node(), id).on.on(name) + : this.each(onFunction(id, name, listener)); + } + + function removeFunction(id) { + return function() { + var parent = this.parentNode; + for (var i in this.__transition) if (+i !== id) return; + if (parent) parent.removeChild(this); + }; + } + + function transition_remove() { + return this.on("end.remove", removeFunction(this._id)); + } + + function transition_select(select) { + var name = this._name, + id = this._id; + + if (typeof select !== "function") select = selector(select); + + for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) { + if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) { + if ("__data__" in node) subnode.__data__ = node.__data__; + subgroup[i] = subnode; + schedule(subgroup[i], name, id, i, subgroup, get$1(node, id)); + } + } + } + + return new Transition(subgroups, this._parents, name, id); + } + + function transition_selectAll(select) { + var name = this._name, + id = this._id; + + if (typeof select !== "function") select = selectorAll(select); + + for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { + if (node = group[i]) { + for (var children = select.call(node, node.__data__, i, group), child, inherit = get$1(node, id), k = 0, l = children.length; k < l; ++k) { + if (child = children[k]) { + schedule(child, name, id, k, children, inherit); + } + } + subgroups.push(children); + parents.push(node); + } + } + } + + return new Transition(subgroups, parents, name, id); + } + + var Selection$1 = selection.prototype.constructor; + + function transition_selection() { + return new Selection$1(this._groups, this._parents); + } + + function styleNull(name, interpolate) { + var string00, + string10, + interpolate0; + return function() { + var string0 = styleValue(this, name), + string1 = (this.style.removeProperty(name), styleValue(this, name)); + return string0 === string1 ? null + : string0 === string00 && string1 === string10 ? interpolate0 + : interpolate0 = interpolate(string00 = string0, string10 = string1); + }; + } + + function styleRemove$1(name) { + return function() { + this.style.removeProperty(name); + }; + } + + function styleConstant$1(name, interpolate, value1) { + var string00, + string1 = value1 + "", + interpolate0; + return function() { + var string0 = styleValue(this, name); + return string0 === string1 ? null + : string0 === string00 ? interpolate0 + : interpolate0 = interpolate(string00 = string0, value1); + }; + } + + function styleFunction$1(name, interpolate, value) { + var string00, + string10, + interpolate0; + return function() { + var string0 = styleValue(this, name), + value1 = value(this), + string1 = value1 + ""; + if (value1 == null) string1 = value1 = (this.style.removeProperty(name), styleValue(this, name)); + return string0 === string1 ? null + : string0 === string00 && string1 === string10 ? interpolate0 + : (string10 = string1, interpolate0 = interpolate(string00 = string0, value1)); + }; + } + + function styleMaybeRemove(id, name) { + var on0, on1, listener0, key = "style." + name, event = "end." + key, remove; + return function() { + var schedule = set$1(this, id), + on = schedule.on, + listener = schedule.value[key] == null ? remove || (remove = styleRemove$1(name)) : undefined; + + // If this node shared a dispatch with the previous node, + // just assign the updated shared dispatch and we’re done! + // Otherwise, copy-on-write. + if (on !== on0 || listener0 !== listener) (on1 = (on0 = on).copy()).on(event, listener0 = listener); + + schedule.on = on1; + }; + } + + function transition_style(name, value, priority) { + var i = (name += "") === "transform" ? interpolateTransformCss : interpolate; + return value == null ? this + .styleTween(name, styleNull(name, i)) + .on("end.style." + name, styleRemove$1(name)) + : typeof value === "function" ? this + .styleTween(name, styleFunction$1(name, i, tweenValue(this, "style." + name, value))) + .each(styleMaybeRemove(this._id, name)) + : this + .styleTween(name, styleConstant$1(name, i, value), priority) + .on("end.style." + name, null); + } + + function styleInterpolate(name, i, priority) { + return function(t) { + this.style.setProperty(name, i.call(this, t), priority); + }; + } + + function styleTween(name, value, priority) { + var t, i0; + function tween() { + var i = value.apply(this, arguments); + if (i !== i0) t = (i0 = i) && styleInterpolate(name, i, priority); + return t; + } + tween._value = value; + return tween; + } + + function transition_styleTween(name, value, priority) { + var key = "style." + (name += ""); + if (arguments.length < 2) return (key = this.tween(key)) && key._value; + if (value == null) return this.tween(key, null); + if (typeof value !== "function") throw new Error; + return this.tween(key, styleTween(name, value, priority == null ? "" : priority)); + } + + function textConstant$1(value) { + return function() { + this.textContent = value; + }; + } + + function textFunction$1(value) { + return function() { + var value1 = value(this); + this.textContent = value1 == null ? "" : value1; + }; + } + + function transition_text(value) { + return this.tween("text", typeof value === "function" + ? textFunction$1(tweenValue(this, "text", value)) + : textConstant$1(value == null ? "" : value + "")); + } + + function textInterpolate(i) { + return function(t) { + this.textContent = i.call(this, t); + }; + } + + function textTween(value) { + var t0, i0; + function tween() { + var i = value.apply(this, arguments); + if (i !== i0) t0 = (i0 = i) && textInterpolate(i); + return t0; + } + tween._value = value; + return tween; + } + + function transition_textTween(value) { + var key = "text"; + if (arguments.length < 1) return (key = this.tween(key)) && key._value; + if (value == null) return this.tween(key, null); + if (typeof value !== "function") throw new Error; + return this.tween(key, textTween(value)); + } + + function transition_transition() { + var name = this._name, + id0 = this._id, + id1 = newId(); + + for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { + if (node = group[i]) { + var inherit = get$1(node, id0); + schedule(node, name, id1, i, group, { + time: inherit.time + inherit.delay + inherit.duration, + delay: 0, + duration: inherit.duration, + ease: inherit.ease + }); + } + } + } + + return new Transition(groups, this._parents, name, id1); + } + + function transition_end() { + var on0, on1, that = this, id = that._id, size = that.size(); + return new Promise(function(resolve, reject) { + var cancel = {value: reject}, + end = {value: function() { if (--size === 0) resolve(); }}; + + that.each(function() { + var schedule = set$1(this, id), + on = schedule.on; + + // If this node shared a dispatch with the previous node, + // just assign the updated shared dispatch and we’re done! + // Otherwise, copy-on-write. + if (on !== on0) { + on1 = (on0 = on).copy(); + on1._.cancel.push(cancel); + on1._.interrupt.push(cancel); + on1._.end.push(end); + } + + schedule.on = on1; + }); + }); + } + + var id = 0; + + function Transition(groups, parents, name, id) { + this._groups = groups; + this._parents = parents; + this._name = name; + this._id = id; + } + + function transition(name) { + return selection().transition(name); + } + + function newId() { + return ++id; + } + + var selection_prototype = selection.prototype; + + Transition.prototype = transition.prototype = { + constructor: Transition, + select: transition_select, + selectAll: transition_selectAll, + filter: transition_filter, + merge: transition_merge, + selection: transition_selection, + transition: transition_transition, + call: selection_prototype.call, + nodes: selection_prototype.nodes, + node: selection_prototype.node, + size: selection_prototype.size, + empty: selection_prototype.empty, + each: selection_prototype.each, + on: transition_on, + attr: transition_attr, + attrTween: transition_attrTween, + style: transition_style, + styleTween: transition_styleTween, + text: transition_text, + textTween: transition_textTween, + remove: transition_remove, + tween: transition_tween, + delay: transition_delay, + duration: transition_duration, + ease: transition_ease, + end: transition_end + }; + + function linear$1(t) { + return +t; + } + + function quadIn(t) { + return t * t; + } + + function quadOut(t) { + return t * (2 - t); + } + + function quadInOut(t) { + return ((t *= 2) <= 1 ? t * t : --t * (2 - t) + 1) / 2; + } + + function cubicIn(t) { + return t * t * t; + } + + function cubicOut(t) { + return --t * t * t + 1; + } + + function cubicInOut(t) { + return ((t *= 2) <= 1 ? t * t * t : (t -= 2) * t * t + 2) / 2; + } + + var exponent = 3; + + var polyIn = (function custom(e) { + e = +e; + + function polyIn(t) { + return Math.pow(t, e); + } + + polyIn.exponent = custom; + + return polyIn; + })(exponent); + + var polyOut = (function custom(e) { + e = +e; + + function polyOut(t) { + return 1 - Math.pow(1 - t, e); + } + + polyOut.exponent = custom; + + return polyOut; + })(exponent); + + var polyInOut = (function custom(e) { + e = +e; + + function polyInOut(t) { + return ((t *= 2) <= 1 ? Math.pow(t, e) : 2 - Math.pow(2 - t, e)) / 2; + } + + polyInOut.exponent = custom; + + return polyInOut; + })(exponent); + + var pi = Math.PI, + halfPi = pi / 2; + + function sinIn(t) { + return 1 - Math.cos(t * halfPi); + } + + function sinOut(t) { + return Math.sin(t * halfPi); + } + + function sinInOut(t) { + return (1 - Math.cos(pi * t)) / 2; + } + + function expIn(t) { + return Math.pow(2, 10 * t - 10); + } + + function expOut(t) { + return 1 - Math.pow(2, -10 * t); + } + + function expInOut(t) { + return ((t *= 2) <= 1 ? Math.pow(2, 10 * t - 10) : 2 - Math.pow(2, 10 - 10 * t)) / 2; + } + + function circleIn(t) { + return 1 - Math.sqrt(1 - t * t); + } + + function circleOut(t) { + return Math.sqrt(1 - --t * t); + } + + function circleInOut(t) { + return ((t *= 2) <= 1 ? 1 - Math.sqrt(1 - t * t) : Math.sqrt(1 - (t -= 2) * t) + 1) / 2; + } + + var b1 = 4 / 11, + b2 = 6 / 11, + b3 = 8 / 11, + b4 = 3 / 4, + b5 = 9 / 11, + b6 = 10 / 11, + b7 = 15 / 16, + b8 = 21 / 22, + b9 = 63 / 64, + b0 = 1 / b1 / b1; + + function bounceIn(t) { + return 1 - bounceOut(1 - t); + } + + function bounceOut(t) { + return (t = +t) < b1 ? b0 * t * t : t < b3 ? b0 * (t -= b2) * t + b4 : t < b6 ? b0 * (t -= b5) * t + b7 : b0 * (t -= b8) * t + b9; + } + + function bounceInOut(t) { + return ((t *= 2) <= 1 ? 1 - bounceOut(1 - t) : bounceOut(t - 1) + 1) / 2; + } + + var overshoot = 1.70158; + + var backIn = (function custom(s) { + s = +s; + + function backIn(t) { + return t * t * ((s + 1) * t - s); + } + + backIn.overshoot = custom; + + return backIn; + })(overshoot); + + var backOut = (function custom(s) { + s = +s; + + function backOut(t) { + return --t * t * ((s + 1) * t + s) + 1; + } + + backOut.overshoot = custom; + + return backOut; + })(overshoot); + + var backInOut = (function custom(s) { + s = +s; + + function backInOut(t) { + return ((t *= 2) < 1 ? t * t * ((s + 1) * t - s) : (t -= 2) * t * ((s + 1) * t + s) + 2) / 2; + } + + backInOut.overshoot = custom; + + return backInOut; + })(overshoot); + + var tau = 2 * Math.PI, + amplitude = 1, + period = 0.3; + + var elasticIn = (function custom(a, p) { + var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau); + + function elasticIn(t) { + return a * Math.pow(2, 10 * --t) * Math.sin((s - t) / p); + } + + elasticIn.amplitude = function(a) { return custom(a, p * tau); }; + elasticIn.period = function(p) { return custom(a, p); }; + + return elasticIn; + })(amplitude, period); + + var elasticOut = (function custom(a, p) { + var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau); + + function elasticOut(t) { + return 1 - a * Math.pow(2, -10 * (t = +t)) * Math.sin((t + s) / p); + } + + elasticOut.amplitude = function(a) { return custom(a, p * tau); }; + elasticOut.period = function(p) { return custom(a, p); }; + + return elasticOut; + })(amplitude, period); + + var elasticInOut = (function custom(a, p) { + var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau); + + function elasticInOut(t) { + return ((t = t * 2 - 1) < 0 + ? a * Math.pow(2, 10 * t) * Math.sin((s - t) / p) + : 2 - a * Math.pow(2, -10 * t) * Math.sin((s + t) / p)) / 2; + } + + elasticInOut.amplitude = function(a) { return custom(a, p * tau); }; + elasticInOut.period = function(p) { return custom(a, p); }; + + return elasticInOut; + })(amplitude, period); + + var defaultTiming = { + time: null, // Set on use. + delay: 0, + duration: 250, + ease: cubicInOut + }; + + function inherit(node, id) { + var timing; + while (!(timing = node.__transition) || !(timing = timing[id])) { + if (!(node = node.parentNode)) { + return defaultTiming.time = now(), defaultTiming; + } + } + return timing; + } + + function selection_transition(name) { + var id, + timing; + + if (name instanceof Transition) { + id = name._id, name = name._name; + } else { + id = newId(), (timing = defaultTiming).time = now(), name = name == null ? null : name + ""; + } + + for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) { + for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { + if (node = group[i]) { + schedule(node, name, id, i, group, timing || inherit(node, id)); + } + } + } + + return new Transition(groups, this._parents, name, id); + } + + selection.prototype.interrupt = selection_interrupt; + selection.prototype.transition = selection_transition; + + var root$1 = [null]; + + function active(node, name) { + var schedules = node.__transition, + schedule, + i; + + if (schedules) { + name = name == null ? null : name + ""; + for (i in schedules) { + if ((schedule = schedules[i]).state > SCHEDULED && schedule.name === name) { + return new Transition([[node]], root$1, name, +i); + } + } + } + + return null; + } + + function constant$4(x) { + return function() { + return x; + }; + } + + function BrushEvent(target, type, selection) { + this.target = target; + this.type = type; + this.selection = selection; + } + + function nopropagation$1() { + event.stopImmediatePropagation(); + } + + function noevent$1() { + event.preventDefault(); + event.stopImmediatePropagation(); + } + + var MODE_DRAG = {name: "drag"}, + MODE_SPACE = {name: "space"}, + MODE_HANDLE = {name: "handle"}, + MODE_CENTER = {name: "center"}; + + function number1(e) { + return [+e[0], +e[1]]; + } + + function number2(e) { + return [number1(e[0]), number1(e[1])]; + } + + function toucher(identifier) { + return function(target) { + return touch(target, event.touches, identifier); + }; + } + + var X = { + name: "x", + handles: ["w", "e"].map(type), + input: function(x, e) { return x == null ? null : [[+x[0], e[0][1]], [+x[1], e[1][1]]]; }, + output: function(xy) { return xy && [xy[0][0], xy[1][0]]; } + }; + + var Y = { + name: "y", + handles: ["n", "s"].map(type), + input: function(y, e) { return y == null ? null : [[e[0][0], +y[0]], [e[1][0], +y[1]]]; }, + output: function(xy) { return xy && [xy[0][1], xy[1][1]]; } + }; + + var XY = { + name: "xy", + handles: ["n", "w", "e", "s", "nw", "ne", "sw", "se"].map(type), + input: function(xy) { return xy == null ? null : number2(xy); }, + output: function(xy) { return xy; } + }; + + var cursors = { + overlay: "crosshair", + selection: "move", + n: "ns-resize", + e: "ew-resize", + s: "ns-resize", + w: "ew-resize", + nw: "nwse-resize", + ne: "nesw-resize", + se: "nwse-resize", + sw: "nesw-resize" + }; + + var flipX = { + e: "w", + w: "e", + nw: "ne", + ne: "nw", + se: "sw", + sw: "se" + }; + + var flipY = { + n: "s", + s: "n", + nw: "sw", + ne: "se", + se: "ne", + sw: "nw" + }; + + var signsX = { + overlay: +1, + selection: +1, + n: null, + e: +1, + s: null, + w: -1, + nw: -1, + ne: +1, + se: +1, + sw: -1 + }; + + var signsY = { + overlay: +1, + selection: +1, + n: -1, + e: null, + s: +1, + w: null, + nw: -1, + ne: -1, + se: +1, + sw: +1 + }; + + function type(t) { + return {type: t}; + } + + // Ignore right-click, since that should open the context menu. + function defaultFilter$1() { + return !event.ctrlKey && !event.button; + } + + function defaultExtent() { + var svg = this.ownerSVGElement || this; + if (svg.hasAttribute("viewBox")) { + svg = svg.viewBox.baseVal; + return [[svg.x, svg.y], [svg.x + svg.width, svg.y + svg.height]]; + } + return [[0, 0], [svg.width.baseVal.value, svg.height.baseVal.value]]; + } + + function defaultTouchable$1() { + return navigator.maxTouchPoints || ("ontouchstart" in this); + } + + // Like d3.local, but with the name “__brush” rather than auto-generated. + function local$1(node) { + while (!node.__brush) if (!(node = node.parentNode)) return; + return node.__brush; + } + + function empty$1(extent) { + return extent[0][0] === extent[1][0] + || extent[0][1] === extent[1][1]; + } + + function brushSelection(node) { + var state = node.__brush; + return state ? state.dim.output(state.selection) : null; + } + + function brushX() { + return brush$1(X); + } + + function brushY() { + return brush$1(Y); + } + + function brush() { + return brush$1(XY); + } + + function brush$1(dim) { + var extent = defaultExtent, + filter = defaultFilter$1, + touchable = defaultTouchable$1, + keys = true, + listeners = dispatch("start", "brush", "end"), + handleSize = 6, + touchending; + + function brush(group) { + var overlay = group + .property("__brush", initialize) + .selectAll(".overlay") + .data([type("overlay")]); + + overlay.enter().append("rect") + .attr("class", "overlay") + .attr("pointer-events", "all") + .attr("cursor", cursors.overlay) + .merge(overlay) + .each(function() { + var extent = local$1(this).extent; + select(this) + .attr("x", extent[0][0]) + .attr("y", extent[0][1]) + .attr("width", extent[1][0] - extent[0][0]) + .attr("height", extent[1][1] - extent[0][1]); + }); + + group.selectAll(".selection") + .data([type("selection")]) + .enter().append("rect") + .attr("class", "selection") + .attr("cursor", cursors.selection) + .attr("fill", "#777") + .attr("fill-opacity", 0.3) + .attr("stroke", "#fff") + .attr("shape-rendering", "crispEdges"); + + var handle = group.selectAll(".handle") + .data(dim.handles, function(d) { return d.type; }); + + handle.exit().remove(); + + handle.enter().append("rect") + .attr("class", function(d) { return "handle handle--" + d.type; }) + .attr("cursor", function(d) { return cursors[d.type]; }); + + group + .each(redraw) + .attr("fill", "none") + .attr("pointer-events", "all") + .on("mousedown.brush", started) + .filter(touchable) + .on("touchstart.brush", started) + .on("touchmove.brush", touchmoved) + .on("touchend.brush touchcancel.brush", touchended) + .style("touch-action", "none") + .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)"); + } + + brush.move = function(group, selection) { + if (group.selection) { + group + .on("start.brush", function() { emitter(this, arguments).beforestart().start(); }) + .on("interrupt.brush end.brush", function() { emitter(this, arguments).end(); }) + .tween("brush", function() { + var that = this, + state = that.__brush, + emit = emitter(that, arguments), + selection0 = state.selection, + selection1 = dim.input(typeof selection === "function" ? selection.apply(this, arguments) : selection, state.extent), + i = interpolateValue(selection0, selection1); + + function tween(t) { + state.selection = t === 1 && selection1 === null ? null : i(t); + redraw.call(that); + emit.brush(); + } + + return selection0 !== null && selection1 !== null ? tween : tween(1); + }); + } else { + group + .each(function() { + var that = this, + args = arguments, + state = that.__brush, + selection1 = dim.input(typeof selection === "function" ? selection.apply(that, args) : selection, state.extent), + emit = emitter(that, args).beforestart(); + + interrupt(that); + state.selection = selection1 === null ? null : selection1; + redraw.call(that); + emit.start().brush().end(); + }); + } + }; + + brush.clear = function(group) { + brush.move(group, null); + }; + + function redraw() { + var group = select(this), + selection = local$1(this).selection; + + if (selection) { + group.selectAll(".selection") + .style("display", null) + .attr("x", selection[0][0]) + .attr("y", selection[0][1]) + .attr("width", selection[1][0] - selection[0][0]) + .attr("height", selection[1][1] - selection[0][1]); + + group.selectAll(".handle") + .style("display", null) + .attr("x", function(d) { return d.type[d.type.length - 1] === "e" ? selection[1][0] - handleSize / 2 : selection[0][0] - handleSize / 2; }) + .attr("y", function(d) { return d.type[0] === "s" ? selection[1][1] - handleSize / 2 : selection[0][1] - handleSize / 2; }) + .attr("width", function(d) { return d.type === "n" || d.type === "s" ? selection[1][0] - selection[0][0] + handleSize : handleSize; }) + .attr("height", function(d) { return d.type === "e" || d.type === "w" ? selection[1][1] - selection[0][1] + handleSize : handleSize; }); + } + + else { + group.selectAll(".selection,.handle") + .style("display", "none") + .attr("x", null) + .attr("y", null) + .attr("width", null) + .attr("height", null); + } + } + + function emitter(that, args, clean) { + return (!clean && that.__brush.emitter) || new Emitter(that, args); + } + + function Emitter(that, args) { + this.that = that; + this.args = args; + this.state = that.__brush; + this.active = 0; + } + + Emitter.prototype = { + beforestart: function() { + if (++this.active === 1) this.state.emitter = this, this.starting = true; + return this; + }, + start: function() { + if (this.starting) this.starting = false, this.emit("start"); + else this.emit("brush"); + return this; + }, + brush: function() { + this.emit("brush"); + return this; + }, + end: function() { + if (--this.active === 0) delete this.state.emitter, this.emit("end"); + return this; + }, + emit: function(type) { + customEvent(new BrushEvent(brush, type, dim.output(this.state.selection)), listeners.apply, listeners, [type, this.that, this.args]); + } + }; + + function started() { + if (touchending && !event.touches) return; + if (!filter.apply(this, arguments)) return; + + var that = this, + type = event.target.__data__.type, + mode = (keys && event.metaKey ? type = "overlay" : type) === "selection" ? MODE_DRAG : (keys && event.altKey ? MODE_CENTER : MODE_HANDLE), + signX = dim === Y ? null : signsX[type], + signY = dim === X ? null : signsY[type], + state = local$1(that), + extent = state.extent, + selection = state.selection, + W = extent[0][0], w0, w1, + N = extent[0][1], n0, n1, + E = extent[1][0], e0, e1, + S = extent[1][1], s0, s1, + dx = 0, + dy = 0, + moving, + shifting = signX && signY && keys && event.shiftKey, + lockX, + lockY, + pointer = event.touches ? toucher(event.changedTouches[0].identifier) : mouse, + point0 = pointer(that), + point = point0, + emit = emitter(that, arguments, true).beforestart(); + + if (type === "overlay") { + if (selection) moving = true; + state.selection = selection = [ + [w0 = dim === Y ? W : point0[0], n0 = dim === X ? N : point0[1]], + [e0 = dim === Y ? E : w0, s0 = dim === X ? S : n0] + ]; + } else { + w0 = selection[0][0]; + n0 = selection[0][1]; + e0 = selection[1][0]; + s0 = selection[1][1]; + } + + w1 = w0; + n1 = n0; + e1 = e0; + s1 = s0; + + var group = select(that) + .attr("pointer-events", "none"); + + var overlay = group.selectAll(".overlay") + .attr("cursor", cursors[type]); + + if (event.touches) { + emit.moved = moved; + emit.ended = ended; + } else { + var view = select(event.view) + .on("mousemove.brush", moved, true) + .on("mouseup.brush", ended, true); + if (keys) view + .on("keydown.brush", keydowned, true) + .on("keyup.brush", keyupped, true); + + dragDisable(event.view); + } + + nopropagation$1(); + interrupt(that); + redraw.call(that); + emit.start(); + + function moved() { + var point1 = pointer(that); + if (shifting && !lockX && !lockY) { + if (Math.abs(point1[0] - point[0]) > Math.abs(point1[1] - point[1])) lockY = true; + else lockX = true; + } + point = point1; + moving = true; + noevent$1(); + move(); + } + + function move() { + var t; + + dx = point[0] - point0[0]; + dy = point[1] - point0[1]; + + switch (mode) { + case MODE_SPACE: + case MODE_DRAG: { + if (signX) dx = Math.max(W - w0, Math.min(E - e0, dx)), w1 = w0 + dx, e1 = e0 + dx; + if (signY) dy = Math.max(N - n0, Math.min(S - s0, dy)), n1 = n0 + dy, s1 = s0 + dy; + break; + } + case MODE_HANDLE: { + if (signX < 0) dx = Math.max(W - w0, Math.min(E - w0, dx)), w1 = w0 + dx, e1 = e0; + else if (signX > 0) dx = Math.max(W - e0, Math.min(E - e0, dx)), w1 = w0, e1 = e0 + dx; + if (signY < 0) dy = Math.max(N - n0, Math.min(S - n0, dy)), n1 = n0 + dy, s1 = s0; + else if (signY > 0) dy = Math.max(N - s0, Math.min(S - s0, dy)), n1 = n0, s1 = s0 + dy; + break; + } + case MODE_CENTER: { + if (signX) w1 = Math.max(W, Math.min(E, w0 - dx * signX)), e1 = Math.max(W, Math.min(E, e0 + dx * signX)); + if (signY) n1 = Math.max(N, Math.min(S, n0 - dy * signY)), s1 = Math.max(N, Math.min(S, s0 + dy * signY)); + break; + } + } + + if (e1 < w1) { + signX *= -1; + t = w0, w0 = e0, e0 = t; + t = w1, w1 = e1, e1 = t; + if (type in flipX) overlay.attr("cursor", cursors[type = flipX[type]]); + } + + if (s1 < n1) { + signY *= -1; + t = n0, n0 = s0, s0 = t; + t = n1, n1 = s1, s1 = t; + if (type in flipY) overlay.attr("cursor", cursors[type = flipY[type]]); + } + + if (state.selection) selection = state.selection; // May be set by brush.move! + if (lockX) w1 = selection[0][0], e1 = selection[1][0]; + if (lockY) n1 = selection[0][1], s1 = selection[1][1]; + + if (selection[0][0] !== w1 + || selection[0][1] !== n1 + || selection[1][0] !== e1 + || selection[1][1] !== s1) { + state.selection = [[w1, n1], [e1, s1]]; + redraw.call(that); + emit.brush(); + } + } + + function ended() { + nopropagation$1(); + if (event.touches) { + if (event.touches.length) return; + if (touchending) clearTimeout(touchending); + touchending = setTimeout(function() { touchending = null; }, 500); // Ghost clicks are delayed! + } else { + yesdrag(event.view, moving); + view.on("keydown.brush keyup.brush mousemove.brush mouseup.brush", null); + } + group.attr("pointer-events", "all"); + overlay.attr("cursor", cursors.overlay); + if (state.selection) selection = state.selection; // May be set by brush.move (on start)! + if (empty$1(selection)) state.selection = null, redraw.call(that); + emit.end(); + } + + function keydowned() { + switch (event.keyCode) { + case 16: { // SHIFT + shifting = signX && signY; + break; + } + case 18: { // ALT + if (mode === MODE_HANDLE) { + if (signX) e0 = e1 - dx * signX, w0 = w1 + dx * signX; + if (signY) s0 = s1 - dy * signY, n0 = n1 + dy * signY; + mode = MODE_CENTER; + move(); + } + break; + } + case 32: { // SPACE; takes priority over ALT + if (mode === MODE_HANDLE || mode === MODE_CENTER) { + if (signX < 0) e0 = e1 - dx; else if (signX > 0) w0 = w1 - dx; + if (signY < 0) s0 = s1 - dy; else if (signY > 0) n0 = n1 - dy; + mode = MODE_SPACE; + overlay.attr("cursor", cursors.selection); + move(); + } + break; + } + default: return; + } + noevent$1(); + } + + function keyupped() { + switch (event.keyCode) { + case 16: { // SHIFT + if (shifting) { + lockX = lockY = shifting = false; + move(); + } + break; + } + case 18: { // ALT + if (mode === MODE_CENTER) { + if (signX < 0) e0 = e1; else if (signX > 0) w0 = w1; + if (signY < 0) s0 = s1; else if (signY > 0) n0 = n1; + mode = MODE_HANDLE; + move(); + } + break; + } + case 32: { // SPACE + if (mode === MODE_SPACE) { + if (event.altKey) { + if (signX) e0 = e1 - dx * signX, w0 = w1 + dx * signX; + if (signY) s0 = s1 - dy * signY, n0 = n1 + dy * signY; + mode = MODE_CENTER; + } else { + if (signX < 0) e0 = e1; else if (signX > 0) w0 = w1; + if (signY < 0) s0 = s1; else if (signY > 0) n0 = n1; + mode = MODE_HANDLE; + } + overlay.attr("cursor", cursors[type]); + move(); + } + break; + } + default: return; + } + noevent$1(); + } + } + + function touchmoved() { + emitter(this, arguments).moved(); + } + + function touchended() { + emitter(this, arguments).ended(); + } + + function initialize() { + var state = this.__brush || {selection: null}; + state.extent = number2(extent.apply(this, arguments)); + state.dim = dim; + return state; + } + + brush.extent = function(_) { + return arguments.length ? (extent = typeof _ === "function" ? _ : constant$4(number2(_)), brush) : extent; + }; + + brush.filter = function(_) { + return arguments.length ? (filter = typeof _ === "function" ? _ : constant$4(!!_), brush) : filter; + }; + + brush.touchable = function(_) { + return arguments.length ? (touchable = typeof _ === "function" ? _ : constant$4(!!_), brush) : touchable; + }; + + brush.handleSize = function(_) { + return arguments.length ? (handleSize = +_, brush) : handleSize; + }; + + brush.keyModifiers = function(_) { + return arguments.length ? (keys = !!_, brush) : keys; + }; + + brush.on = function() { + var value = listeners.on.apply(listeners, arguments); + return value === listeners ? brush : value; + }; + + return brush; + } + + var cos = Math.cos; + var sin = Math.sin; + var pi$1 = Math.PI; + var halfPi$1 = pi$1 / 2; + var tau$1 = pi$1 * 2; + var max$1 = Math.max; + + function compareValue(compare) { + return function(a, b) { + return compare( + a.source.value + a.target.value, + b.source.value + b.target.value + ); + }; + } + + function chord() { + var padAngle = 0, + sortGroups = null, + sortSubgroups = null, + sortChords = null; + + function chord(matrix) { + var n = matrix.length, + groupSums = [], + groupIndex = sequence(n), + subgroupIndex = [], + chords = [], + groups = chords.groups = new Array(n), + subgroups = new Array(n * n), + k, + x, + x0, + dx, + i, + j; + + // Compute the sum. + k = 0, i = -1; while (++i < n) { + x = 0, j = -1; while (++j < n) { + x += matrix[i][j]; + } + groupSums.push(x); + subgroupIndex.push(sequence(n)); + k += x; + } + + // Sort groups… + if (sortGroups) groupIndex.sort(function(a, b) { + return sortGroups(groupSums[a], groupSums[b]); + }); + + // Sort subgroups… + if (sortSubgroups) subgroupIndex.forEach(function(d, i) { + d.sort(function(a, b) { + return sortSubgroups(matrix[i][a], matrix[i][b]); + }); + }); + + // Convert the sum to scaling factor for [0, 2pi]. + // TODO Allow start and end angle to be specified? + // TODO Allow padding to be specified as percentage? + k = max$1(0, tau$1 - padAngle * n) / k; + dx = k ? padAngle : tau$1 / n; + + // Compute the start and end angle for each group and subgroup. + // Note: Opera has a bug reordering object literal properties! + x = 0, i = -1; while (++i < n) { + x0 = x, j = -1; while (++j < n) { + var di = groupIndex[i], + dj = subgroupIndex[di][j], + v = matrix[di][dj], + a0 = x, + a1 = x += v * k; + subgroups[dj * n + di] = { + index: di, + subindex: dj, + startAngle: a0, + endAngle: a1, + value: v + }; + } + groups[di] = { + index: di, + startAngle: x0, + endAngle: x, + value: groupSums[di] + }; + x += dx; + } + + // Generate chords for each (non-empty) subgroup-subgroup link. + i = -1; while (++i < n) { + j = i - 1; while (++j < n) { + var source = subgroups[j * n + i], + target = subgroups[i * n + j]; + if (source.value || target.value) { + chords.push(source.value < target.value + ? {source: target, target: source} + : {source: source, target: target}); + } + } + } + + return sortChords ? chords.sort(sortChords) : chords; + } + + chord.padAngle = function(_) { + return arguments.length ? (padAngle = max$1(0, _), chord) : padAngle; + }; + + chord.sortGroups = function(_) { + return arguments.length ? (sortGroups = _, chord) : sortGroups; + }; + + chord.sortSubgroups = function(_) { + return arguments.length ? (sortSubgroups = _, chord) : sortSubgroups; + }; + + chord.sortChords = function(_) { + return arguments.length ? (_ == null ? sortChords = null : (sortChords = compareValue(_))._ = _, chord) : sortChords && sortChords._; + }; + + return chord; + } + + var slice$2 = Array.prototype.slice; + + function constant$5(x) { + return function() { + return x; + }; + } + + var pi$2 = Math.PI, + tau$2 = 2 * pi$2, + epsilon$1 = 1e-6, + tauEpsilon = tau$2 - epsilon$1; + + function Path() { + this._x0 = this._y0 = // start of current subpath + this._x1 = this._y1 = null; // end of current subpath + this._ = ""; + } + + function path() { + return new Path; + } + + Path.prototype = path.prototype = { + constructor: Path, + moveTo: function(x, y) { + this._ += "M" + (this._x0 = this._x1 = +x) + "," + (this._y0 = this._y1 = +y); + }, + closePath: function() { + if (this._x1 !== null) { + this._x1 = this._x0, this._y1 = this._y0; + this._ += "Z"; + } + }, + lineTo: function(x, y) { + this._ += "L" + (this._x1 = +x) + "," + (this._y1 = +y); + }, + quadraticCurveTo: function(x1, y1, x, y) { + this._ += "Q" + (+x1) + "," + (+y1) + "," + (this._x1 = +x) + "," + (this._y1 = +y); + }, + bezierCurveTo: function(x1, y1, x2, y2, x, y) { + this._ += "C" + (+x1) + "," + (+y1) + "," + (+x2) + "," + (+y2) + "," + (this._x1 = +x) + "," + (this._y1 = +y); + }, + arcTo: function(x1, y1, x2, y2, r) { + x1 = +x1, y1 = +y1, x2 = +x2, y2 = +y2, r = +r; + var x0 = this._x1, + y0 = this._y1, + x21 = x2 - x1, + y21 = y2 - y1, + x01 = x0 - x1, + y01 = y0 - y1, + l01_2 = x01 * x01 + y01 * y01; + + // Is the radius negative? Error. + if (r < 0) throw new Error("negative radius: " + r); + + // Is this path empty? Move to (x1,y1). + if (this._x1 === null) { + this._ += "M" + (this._x1 = x1) + "," + (this._y1 = y1); + } + + // Or, is (x1,y1) coincident with (x0,y0)? Do nothing. + else if (!(l01_2 > epsilon$1)); + + // Or, are (x0,y0), (x1,y1) and (x2,y2) collinear? + // Equivalently, is (x1,y1) coincident with (x2,y2)? + // Or, is the radius zero? Line to (x1,y1). + else if (!(Math.abs(y01 * x21 - y21 * x01) > epsilon$1) || !r) { + this._ += "L" + (this._x1 = x1) + "," + (this._y1 = y1); + } + + // Otherwise, draw an arc! + else { + var x20 = x2 - x0, + y20 = y2 - y0, + l21_2 = x21 * x21 + y21 * y21, + l20_2 = x20 * x20 + y20 * y20, + l21 = Math.sqrt(l21_2), + l01 = Math.sqrt(l01_2), + l = r * Math.tan((pi$2 - Math.acos((l21_2 + l01_2 - l20_2) / (2 * l21 * l01))) / 2), + t01 = l / l01, + t21 = l / l21; + + // If the start tangent is not coincident with (x0,y0), line to. + if (Math.abs(t01 - 1) > epsilon$1) { + this._ += "L" + (x1 + t01 * x01) + "," + (y1 + t01 * y01); + } + + this._ += "A" + r + "," + r + ",0,0," + (+(y01 * x20 > x01 * y20)) + "," + (this._x1 = x1 + t21 * x21) + "," + (this._y1 = y1 + t21 * y21); + } + }, + arc: function(x, y, r, a0, a1, ccw) { + x = +x, y = +y, r = +r, ccw = !!ccw; + var dx = r * Math.cos(a0), + dy = r * Math.sin(a0), + x0 = x + dx, + y0 = y + dy, + cw = 1 ^ ccw, + da = ccw ? a0 - a1 : a1 - a0; + + // Is the radius negative? Error. + if (r < 0) throw new Error("negative radius: " + r); + + // Is this path empty? Move to (x0,y0). + if (this._x1 === null) { + this._ += "M" + x0 + "," + y0; + } + + // Or, is (x0,y0) not coincident with the previous point? Line to (x0,y0). + else if (Math.abs(this._x1 - x0) > epsilon$1 || Math.abs(this._y1 - y0) > epsilon$1) { + this._ += "L" + x0 + "," + y0; + } + + // Is this arc empty? We’re done. + if (!r) return; + + // Does the angle go the wrong way? Flip the direction. + if (da < 0) da = da % tau$2 + tau$2; + + // Is this a complete circle? Draw two arcs to complete the circle. + if (da > tauEpsilon) { + this._ += "A" + r + "," + r + ",0,1," + cw + "," + (x - dx) + "," + (y - dy) + "A" + r + "," + r + ",0,1," + cw + "," + (this._x1 = x0) + "," + (this._y1 = y0); + } + + // Is this arc non-empty? Draw an arc! + else if (da > epsilon$1) { + this._ += "A" + r + "," + r + ",0," + (+(da >= pi$2)) + "," + cw + "," + (this._x1 = x + r * Math.cos(a1)) + "," + (this._y1 = y + r * Math.sin(a1)); + } + }, + rect: function(x, y, w, h) { + this._ += "M" + (this._x0 = this._x1 = +x) + "," + (this._y0 = this._y1 = +y) + "h" + (+w) + "v" + (+h) + "h" + (-w) + "Z"; + }, + toString: function() { + return this._; + } + }; + + function defaultSource(d) { + return d.source; + } + + function defaultTarget(d) { + return d.target; + } + + function defaultRadius(d) { + return d.radius; + } + + function defaultStartAngle(d) { + return d.startAngle; + } + + function defaultEndAngle(d) { + return d.endAngle; + } + + function ribbon() { + var source = defaultSource, + target = defaultTarget, + radius = defaultRadius, + startAngle = defaultStartAngle, + endAngle = defaultEndAngle, + context = null; + + function ribbon() { + var buffer, + argv = slice$2.call(arguments), + s = source.apply(this, argv), + t = target.apply(this, argv), + sr = +radius.apply(this, (argv[0] = s, argv)), + sa0 = startAngle.apply(this, argv) - halfPi$1, + sa1 = endAngle.apply(this, argv) - halfPi$1, + sx0 = sr * cos(sa0), + sy0 = sr * sin(sa0), + tr = +radius.apply(this, (argv[0] = t, argv)), + ta0 = startAngle.apply(this, argv) - halfPi$1, + ta1 = endAngle.apply(this, argv) - halfPi$1; + + if (!context) context = buffer = path(); + + context.moveTo(sx0, sy0); + context.arc(0, 0, sr, sa0, sa1); + if (sa0 !== ta0 || sa1 !== ta1) { // TODO sr !== tr? + context.quadraticCurveTo(0, 0, tr * cos(ta0), tr * sin(ta0)); + context.arc(0, 0, tr, ta0, ta1); + } + context.quadraticCurveTo(0, 0, sx0, sy0); + context.closePath(); + + if (buffer) return context = null, buffer + "" || null; + } + + ribbon.radius = function(_) { + return arguments.length ? (radius = typeof _ === "function" ? _ : constant$5(+_), ribbon) : radius; + }; + + ribbon.startAngle = function(_) { + return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$5(+_), ribbon) : startAngle; + }; + + ribbon.endAngle = function(_) { + return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$5(+_), ribbon) : endAngle; + }; + + ribbon.source = function(_) { + return arguments.length ? (source = _, ribbon) : source; + }; + + ribbon.target = function(_) { + return arguments.length ? (target = _, ribbon) : target; + }; + + ribbon.context = function(_) { + return arguments.length ? ((context = _ == null ? null : _), ribbon) : context; + }; + + return ribbon; + } + + var prefix = "$"; + + function Map() {} + + Map.prototype = map$1.prototype = { + constructor: Map, + has: function(key) { + return (prefix + key) in this; + }, + get: function(key) { + return this[prefix + key]; + }, + set: function(key, value) { + this[prefix + key] = value; + return this; + }, + remove: function(key) { + var property = prefix + key; + return property in this && delete this[property]; + }, + clear: function() { + for (var property in this) if (property[0] === prefix) delete this[property]; + }, + keys: function() { + var keys = []; + for (var property in this) if (property[0] === prefix) keys.push(property.slice(1)); + return keys; + }, + values: function() { + var values = []; + for (var property in this) if (property[0] === prefix) values.push(this[property]); + return values; + }, + entries: function() { + var entries = []; + for (var property in this) if (property[0] === prefix) entries.push({key: property.slice(1), value: this[property]}); + return entries; + }, + size: function() { + var size = 0; + for (var property in this) if (property[0] === prefix) ++size; + return size; + }, + empty: function() { + for (var property in this) if (property[0] === prefix) return false; + return true; + }, + each: function(f) { + for (var property in this) if (property[0] === prefix) f(this[property], property.slice(1), this); + } + }; + + function map$1(object, f) { + var map = new Map; + + // Copy constructor. + if (object instanceof Map) object.each(function(value, key) { map.set(key, value); }); + + // Index array by numeric index or specified key function. + else if (Array.isArray(object)) { + var i = -1, + n = object.length, + o; + + if (f == null) while (++i < n) map.set(i, object[i]); + else while (++i < n) map.set(f(o = object[i], i, object), o); + } + + // Convert object to map. + else if (object) for (var key in object) map.set(key, object[key]); + + return map; + } + + function nest() { + var keys = [], + sortKeys = [], + sortValues, + rollup, + nest; + + function apply(array, depth, createResult, setResult) { + if (depth >= keys.length) { + if (sortValues != null) array.sort(sortValues); + return rollup != null ? rollup(array) : array; + } + + var i = -1, + n = array.length, + key = keys[depth++], + keyValue, + value, + valuesByKey = map$1(), + values, + result = createResult(); + + while (++i < n) { + if (values = valuesByKey.get(keyValue = key(value = array[i]) + "")) { + values.push(value); + } else { + valuesByKey.set(keyValue, [value]); + } + } + + valuesByKey.each(function(values, key) { + setResult(result, key, apply(values, depth, createResult, setResult)); + }); + + return result; + } + + function entries(map, depth) { + if (++depth > keys.length) return map; + var array, sortKey = sortKeys[depth - 1]; + if (rollup != null && depth >= keys.length) array = map.entries(); + else array = [], map.each(function(v, k) { array.push({key: k, values: entries(v, depth)}); }); + return sortKey != null ? array.sort(function(a, b) { return sortKey(a.key, b.key); }) : array; + } + + return nest = { + object: function(array) { return apply(array, 0, createObject, setObject); }, + map: function(array) { return apply(array, 0, createMap, setMap); }, + entries: function(array) { return entries(apply(array, 0, createMap, setMap), 0); }, + key: function(d) { keys.push(d); return nest; }, + sortKeys: function(order) { sortKeys[keys.length - 1] = order; return nest; }, + sortValues: function(order) { sortValues = order; return nest; }, + rollup: function(f) { rollup = f; return nest; } + }; + } + + function createObject() { + return {}; + } + + function setObject(object, key, value) { + object[key] = value; + } + + function createMap() { + return map$1(); + } + + function setMap(map, key, value) { + map.set(key, value); + } + + function Set() {} + + var proto = map$1.prototype; + + Set.prototype = set$2.prototype = { + constructor: Set, + has: proto.has, + add: function(value) { + value += ""; + this[prefix + value] = value; + return this; + }, + remove: proto.remove, + clear: proto.clear, + values: proto.keys, + size: proto.size, + empty: proto.empty, + each: proto.each + }; + + function set$2(object, f) { + var set = new Set; + + // Copy constructor. + if (object instanceof Set) object.each(function(value) { set.add(value); }); + + // Otherwise, assume it’s an array. + else if (object) { + var i = -1, n = object.length; + if (f == null) while (++i < n) set.add(object[i]); + else while (++i < n) set.add(f(object[i], i, object)); + } + + return set; + } + + function keys(map) { + var keys = []; + for (var key in map) keys.push(key); + return keys; + } + + function values(map) { + var values = []; + for (var key in map) values.push(map[key]); + return values; + } + + function entries(map) { + var entries = []; + for (var key in map) entries.push({key: key, value: map[key]}); + return entries; + } + + var array$2 = Array.prototype; + + var slice$3 = array$2.slice; + + function ascending$2(a, b) { + return a - b; + } + + function area(ring) { + var i = 0, n = ring.length, area = ring[n - 1][1] * ring[0][0] - ring[n - 1][0] * ring[0][1]; + while (++i < n) area += ring[i - 1][1] * ring[i][0] - ring[i - 1][0] * ring[i][1]; + return area; + } + + function constant$6(x) { + return function() { + return x; + }; + } + + function contains(ring, hole) { + var i = -1, n = hole.length, c; + while (++i < n) if (c = ringContains(ring, hole[i])) return c; + return 0; + } + + function ringContains(ring, point) { + var x = point[0], y = point[1], contains = -1; + for (var i = 0, n = ring.length, j = n - 1; i < n; j = i++) { + var pi = ring[i], xi = pi[0], yi = pi[1], pj = ring[j], xj = pj[0], yj = pj[1]; + if (segmentContains(pi, pj, point)) return 0; + if (((yi > y) !== (yj > y)) && ((x < (xj - xi) * (y - yi) / (yj - yi) + xi))) contains = -contains; + } + return contains; + } + + function segmentContains(a, b, c) { + var i; return collinear(a, b, c) && within(a[i = +(a[0] === b[0])], c[i], b[i]); + } + + function collinear(a, b, c) { + return (b[0] - a[0]) * (c[1] - a[1]) === (c[0] - a[0]) * (b[1] - a[1]); + } + + function within(p, q, r) { + return p <= q && q <= r || r <= q && q <= p; + } + + function noop$1() {} + + var cases = [ + [], + [[[1.0, 1.5], [0.5, 1.0]]], + [[[1.5, 1.0], [1.0, 1.5]]], + [[[1.5, 1.0], [0.5, 1.0]]], + [[[1.0, 0.5], [1.5, 1.0]]], + [[[1.0, 1.5], [0.5, 1.0]], [[1.0, 0.5], [1.5, 1.0]]], + [[[1.0, 0.5], [1.0, 1.5]]], + [[[1.0, 0.5], [0.5, 1.0]]], + [[[0.5, 1.0], [1.0, 0.5]]], + [[[1.0, 1.5], [1.0, 0.5]]], + [[[0.5, 1.0], [1.0, 0.5]], [[1.5, 1.0], [1.0, 1.5]]], + [[[1.5, 1.0], [1.0, 0.5]]], + [[[0.5, 1.0], [1.5, 1.0]]], + [[[1.0, 1.5], [1.5, 1.0]]], + [[[0.5, 1.0], [1.0, 1.5]]], + [] + ]; + + function contours() { + var dx = 1, + dy = 1, + threshold = thresholdSturges, + smooth = smoothLinear; + + function contours(values) { + var tz = threshold(values); + + // Convert number of thresholds into uniform thresholds. + if (!Array.isArray(tz)) { + var domain = extent(values), start = domain[0], stop = domain[1]; + tz = tickStep(start, stop, tz); + tz = sequence(Math.floor(start / tz) * tz, Math.floor(stop / tz) * tz, tz); + } else { + tz = tz.slice().sort(ascending$2); + } + + return tz.map(function(value) { + return contour(values, value); + }); + } + + // Accumulate, smooth contour rings, assign holes to exterior rings. + // Based on https://github.com/mbostock/shapefile/blob/v0.6.2/shp/polygon.js + function contour(values, value) { + var polygons = [], + holes = []; + + isorings(values, value, function(ring) { + smooth(ring, values, value); + if (area(ring) > 0) polygons.push([ring]); + else holes.push(ring); + }); + + holes.forEach(function(hole) { + for (var i = 0, n = polygons.length, polygon; i < n; ++i) { + if (contains((polygon = polygons[i])[0], hole) !== -1) { + polygon.push(hole); + return; + } + } + }); + + return { + type: "MultiPolygon", + value: value, + coordinates: polygons + }; + } + + // Marching squares with isolines stitched into rings. + // Based on https://github.com/topojson/topojson-client/blob/v3.0.0/src/stitch.js + function isorings(values, value, callback) { + var fragmentByStart = new Array, + fragmentByEnd = new Array, + x, y, t0, t1, t2, t3; + + // Special case for the first row (y = -1, t2 = t3 = 0). + x = y = -1; + t1 = values[0] >= value; + cases[t1 << 1].forEach(stitch); + while (++x < dx - 1) { + t0 = t1, t1 = values[x + 1] >= value; + cases[t0 | t1 << 1].forEach(stitch); + } + cases[t1 << 0].forEach(stitch); + + // General case for the intermediate rows. + while (++y < dy - 1) { + x = -1; + t1 = values[y * dx + dx] >= value; + t2 = values[y * dx] >= value; + cases[t1 << 1 | t2 << 2].forEach(stitch); + while (++x < dx - 1) { + t0 = t1, t1 = values[y * dx + dx + x + 1] >= value; + t3 = t2, t2 = values[y * dx + x + 1] >= value; + cases[t0 | t1 << 1 | t2 << 2 | t3 << 3].forEach(stitch); + } + cases[t1 | t2 << 3].forEach(stitch); + } + + // Special case for the last row (y = dy - 1, t0 = t1 = 0). + x = -1; + t2 = values[y * dx] >= value; + cases[t2 << 2].forEach(stitch); + while (++x < dx - 1) { + t3 = t2, t2 = values[y * dx + x + 1] >= value; + cases[t2 << 2 | t3 << 3].forEach(stitch); + } + cases[t2 << 3].forEach(stitch); + + function stitch(line) { + var start = [line[0][0] + x, line[0][1] + y], + end = [line[1][0] + x, line[1][1] + y], + startIndex = index(start), + endIndex = index(end), + f, g; + if (f = fragmentByEnd[startIndex]) { + if (g = fragmentByStart[endIndex]) { + delete fragmentByEnd[f.end]; + delete fragmentByStart[g.start]; + if (f === g) { + f.ring.push(end); + callback(f.ring); + } else { + fragmentByStart[f.start] = fragmentByEnd[g.end] = {start: f.start, end: g.end, ring: f.ring.concat(g.ring)}; + } + } else { + delete fragmentByEnd[f.end]; + f.ring.push(end); + fragmentByEnd[f.end = endIndex] = f; + } + } else if (f = fragmentByStart[endIndex]) { + if (g = fragmentByEnd[startIndex]) { + delete fragmentByStart[f.start]; + delete fragmentByEnd[g.end]; + if (f === g) { + f.ring.push(end); + callback(f.ring); + } else { + fragmentByStart[g.start] = fragmentByEnd[f.end] = {start: g.start, end: f.end, ring: g.ring.concat(f.ring)}; + } + } else { + delete fragmentByStart[f.start]; + f.ring.unshift(start); + fragmentByStart[f.start = startIndex] = f; + } + } else { + fragmentByStart[startIndex] = fragmentByEnd[endIndex] = {start: startIndex, end: endIndex, ring: [start, end]}; + } + } + } + + function index(point) { + return point[0] * 2 + point[1] * (dx + 1) * 4; + } + + function smoothLinear(ring, values, value) { + ring.forEach(function(point) { + var x = point[0], + y = point[1], + xt = x | 0, + yt = y | 0, + v0, + v1 = values[yt * dx + xt]; + if (x > 0 && x < dx && xt === x) { + v0 = values[yt * dx + xt - 1]; + point[0] = x + (value - v0) / (v1 - v0) - 0.5; + } + if (y > 0 && y < dy && yt === y) { + v0 = values[(yt - 1) * dx + xt]; + point[1] = y + (value - v0) / (v1 - v0) - 0.5; + } + }); + } + + contours.contour = contour; + + contours.size = function(_) { + if (!arguments.length) return [dx, dy]; + var _0 = Math.ceil(_[0]), _1 = Math.ceil(_[1]); + if (!(_0 > 0) || !(_1 > 0)) throw new Error("invalid size"); + return dx = _0, dy = _1, contours; + }; + + contours.thresholds = function(_) { + return arguments.length ? (threshold = typeof _ === "function" ? _ : Array.isArray(_) ? constant$6(slice$3.call(_)) : constant$6(_), contours) : threshold; + }; + + contours.smooth = function(_) { + return arguments.length ? (smooth = _ ? smoothLinear : noop$1, contours) : smooth === smoothLinear; + }; + + return contours; + } + + // TODO Optimize edge cases. + // TODO Optimize index calculation. + // TODO Optimize arguments. + function blurX(source, target, r) { + var n = source.width, + m = source.height, + w = (r << 1) + 1; + for (var j = 0; j < m; ++j) { + for (var i = 0, sr = 0; i < n + r; ++i) { + if (i < n) { + sr += source.data[i + j * n]; + } + if (i >= r) { + if (i >= w) { + sr -= source.data[i - w + j * n]; + } + target.data[i - r + j * n] = sr / Math.min(i + 1, n - 1 + w - i, w); + } + } + } + } + + // TODO Optimize edge cases. + // TODO Optimize index calculation. + // TODO Optimize arguments. + function blurY(source, target, r) { + var n = source.width, + m = source.height, + w = (r << 1) + 1; + for (var i = 0; i < n; ++i) { + for (var j = 0, sr = 0; j < m + r; ++j) { + if (j < m) { + sr += source.data[i + j * n]; + } + if (j >= r) { + if (j >= w) { + sr -= source.data[i + (j - w) * n]; + } + target.data[i + (j - r) * n] = sr / Math.min(j + 1, m - 1 + w - j, w); + } + } + } + } + + function defaultX(d) { + return d[0]; + } + + function defaultY(d) { + return d[1]; + } + + function defaultWeight() { + return 1; + } + + function density() { + var x = defaultX, + y = defaultY, + weight = defaultWeight, + dx = 960, + dy = 500, + r = 20, // blur radius + k = 2, // log2(grid cell size) + o = r * 3, // grid offset, to pad for blur + n = (dx + o * 2) >> k, // grid width + m = (dy + o * 2) >> k, // grid height + threshold = constant$6(20); + + function density(data) { + var values0 = new Float32Array(n * m), + values1 = new Float32Array(n * m); + + data.forEach(function(d, i, data) { + var xi = (+x(d, i, data) + o) >> k, + yi = (+y(d, i, data) + o) >> k, + wi = +weight(d, i, data); + if (xi >= 0 && xi < n && yi >= 0 && yi < m) { + values0[xi + yi * n] += wi; + } + }); + + // TODO Optimize. + blurX({width: n, height: m, data: values0}, {width: n, height: m, data: values1}, r >> k); + blurY({width: n, height: m, data: values1}, {width: n, height: m, data: values0}, r >> k); + blurX({width: n, height: m, data: values0}, {width: n, height: m, data: values1}, r >> k); + blurY({width: n, height: m, data: values1}, {width: n, height: m, data: values0}, r >> k); + blurX({width: n, height: m, data: values0}, {width: n, height: m, data: values1}, r >> k); + blurY({width: n, height: m, data: values1}, {width: n, height: m, data: values0}, r >> k); + + var tz = threshold(values0); + + // Convert number of thresholds into uniform thresholds. + if (!Array.isArray(tz)) { + var stop = max(values0); + tz = tickStep(0, stop, tz); + tz = sequence(0, Math.floor(stop / tz) * tz, tz); + tz.shift(); + } + + return contours() + .thresholds(tz) + .size([n, m]) + (values0) + .map(transform); + } + + function transform(geometry) { + geometry.value *= Math.pow(2, -2 * k); // Density in points per square pixel. + geometry.coordinates.forEach(transformPolygon); + return geometry; + } + + function transformPolygon(coordinates) { + coordinates.forEach(transformRing); + } + + function transformRing(coordinates) { + coordinates.forEach(transformPoint); + } + + // TODO Optimize. + function transformPoint(coordinates) { + coordinates[0] = coordinates[0] * Math.pow(2, k) - o; + coordinates[1] = coordinates[1] * Math.pow(2, k) - o; + } + + function resize() { + o = r * 3; + n = (dx + o * 2) >> k; + m = (dy + o * 2) >> k; + return density; + } + + density.x = function(_) { + return arguments.length ? (x = typeof _ === "function" ? _ : constant$6(+_), density) : x; + }; + + density.y = function(_) { + return arguments.length ? (y = typeof _ === "function" ? _ : constant$6(+_), density) : y; + }; + + density.weight = function(_) { + return arguments.length ? (weight = typeof _ === "function" ? _ : constant$6(+_), density) : weight; + }; + + density.size = function(_) { + if (!arguments.length) return [dx, dy]; + var _0 = Math.ceil(_[0]), _1 = Math.ceil(_[1]); + if (!(_0 >= 0) && !(_0 >= 0)) throw new Error("invalid size"); + return dx = _0, dy = _1, resize(); + }; + + density.cellSize = function(_) { + if (!arguments.length) return 1 << k; + if (!((_ = +_) >= 1)) throw new Error("invalid cell size"); + return k = Math.floor(Math.log(_) / Math.LN2), resize(); + }; + + density.thresholds = function(_) { + return arguments.length ? (threshold = typeof _ === "function" ? _ : Array.isArray(_) ? constant$6(slice$3.call(_)) : constant$6(_), density) : threshold; + }; + + density.bandwidth = function(_) { + if (!arguments.length) return Math.sqrt(r * (r + 1)); + if (!((_ = +_) >= 0)) throw new Error("invalid bandwidth"); + return r = Math.round((Math.sqrt(4 * _ * _ + 1) - 1) / 2), resize(); + }; + + return density; + } + + var EOL = {}, + EOF = {}, + QUOTE = 34, + NEWLINE = 10, + RETURN = 13; + + function objectConverter(columns) { + return new Function("d", "return {" + columns.map(function(name, i) { + return JSON.stringify(name) + ": d[" + i + "] || \"\""; + }).join(",") + "}"); + } + + function customConverter(columns, f) { + var object = objectConverter(columns); + return function(row, i) { + return f(object(row), i, columns); + }; + } + + // Compute unique columns in order of discovery. + function inferColumns(rows) { + var columnSet = Object.create(null), + columns = []; + + rows.forEach(function(row) { + for (var column in row) { + if (!(column in columnSet)) { + columns.push(columnSet[column] = column); + } + } + }); + + return columns; + } + + function pad(value, width) { + var s = value + "", length = s.length; + return length < width ? new Array(width - length + 1).join(0) + s : s; + } + + function formatYear(year) { + return year < 0 ? "-" + pad(-year, 6) + : year > 9999 ? "+" + pad(year, 6) + : pad(year, 4); + } + + function formatDate(date) { + var hours = date.getUTCHours(), + minutes = date.getUTCMinutes(), + seconds = date.getUTCSeconds(), + milliseconds = date.getUTCMilliseconds(); + return isNaN(date) ? "Invalid Date" + : formatYear(date.getUTCFullYear()) + "-" + pad(date.getUTCMonth() + 1, 2) + "-" + pad(date.getUTCDate(), 2) + + (milliseconds ? "T" + pad(hours, 2) + ":" + pad(minutes, 2) + ":" + pad(seconds, 2) + "." + pad(milliseconds, 3) + "Z" + : seconds ? "T" + pad(hours, 2) + ":" + pad(minutes, 2) + ":" + pad(seconds, 2) + "Z" + : minutes || hours ? "T" + pad(hours, 2) + ":" + pad(minutes, 2) + "Z" + : ""); + } + + function dsvFormat(delimiter) { + var reFormat = new RegExp("[\"" + delimiter + "\n\r]"), + DELIMITER = delimiter.charCodeAt(0); + + function parse(text, f) { + var convert, columns, rows = parseRows(text, function(row, i) { + if (convert) return convert(row, i - 1); + columns = row, convert = f ? customConverter(row, f) : objectConverter(row); + }); + rows.columns = columns || []; + return rows; + } + + function parseRows(text, f) { + var rows = [], // output rows + N = text.length, + I = 0, // current character index + n = 0, // current line number + t, // current token + eof = N <= 0, // current token followed by EOF? + eol = false; // current token followed by EOL? + + // Strip the trailing newline. + if (text.charCodeAt(N - 1) === NEWLINE) --N; + if (text.charCodeAt(N - 1) === RETURN) --N; + + function token() { + if (eof) return EOF; + if (eol) return eol = false, EOL; + + // Unescape quotes. + var i, j = I, c; + if (text.charCodeAt(j) === QUOTE) { + while (I++ < N && text.charCodeAt(I) !== QUOTE || text.charCodeAt(++I) === QUOTE); + if ((i = I) >= N) eof = true; + else if ((c = text.charCodeAt(I++)) === NEWLINE) eol = true; + else if (c === RETURN) { eol = true; if (text.charCodeAt(I) === NEWLINE) ++I; } + return text.slice(j + 1, i - 1).replace(/""/g, "\""); + } + + // Find next delimiter or newline. + while (I < N) { + if ((c = text.charCodeAt(i = I++)) === NEWLINE) eol = true; + else if (c === RETURN) { eol = true; if (text.charCodeAt(I) === NEWLINE) ++I; } + else if (c !== DELIMITER) continue; + return text.slice(j, i); + } + + // Return last token before EOF. + return eof = true, text.slice(j, N); + } + + while ((t = token()) !== EOF) { + var row = []; + while (t !== EOL && t !== EOF) row.push(t), t = token(); + if (f && (row = f(row, n++)) == null) continue; + rows.push(row); + } + + return rows; + } + + function preformatBody(rows, columns) { + return rows.map(function(row) { + return columns.map(function(column) { + return formatValue(row[column]); + }).join(delimiter); + }); + } + + function format(rows, columns) { + if (columns == null) columns = inferColumns(rows); + return [columns.map(formatValue).join(delimiter)].concat(preformatBody(rows, columns)).join("\n"); + } + + function formatBody(rows, columns) { + if (columns == null) columns = inferColumns(rows); + return preformatBody(rows, columns).join("\n"); + } + + function formatRows(rows) { + return rows.map(formatRow).join("\n"); + } + + function formatRow(row) { + return row.map(formatValue).join(delimiter); + } + + function formatValue(value) { + return value == null ? "" + : value instanceof Date ? formatDate(value) + : reFormat.test(value += "") ? "\"" + value.replace(/"/g, "\"\"") + "\"" + : value; + } + + return { + parse: parse, + parseRows: parseRows, + format: format, + formatBody: formatBody, + formatRows: formatRows, + formatRow: formatRow, + formatValue: formatValue + }; + } + + var csv = dsvFormat(","); + + var csvParse = csv.parse; + var csvParseRows = csv.parseRows; + var csvFormat = csv.format; + var csvFormatBody = csv.formatBody; + var csvFormatRows = csv.formatRows; + var csvFormatRow = csv.formatRow; + var csvFormatValue = csv.formatValue; + + var tsv = dsvFormat("\t"); + + var tsvParse = tsv.parse; + var tsvParseRows = tsv.parseRows; + var tsvFormat = tsv.format; + var tsvFormatBody = tsv.formatBody; + var tsvFormatRows = tsv.formatRows; + var tsvFormatRow = tsv.formatRow; + var tsvFormatValue = tsv.formatValue; + + function autoType(object) { + for (var key in object) { + var value = object[key].trim(), number, m; + if (!value) value = null; + else if (value === "true") value = true; + else if (value === "false") value = false; + else if (value === "NaN") value = NaN; + else if (!isNaN(number = +value)) value = number; + else if (m = value.match(/^([-+]\d{2})?\d{4}(-\d{2}(-\d{2})?)?(T\d{2}:\d{2}(:\d{2}(\.\d{3})?)?(Z|[-+]\d{2}:\d{2})?)?$/)) { + if (fixtz && !!m[4] && !m[7]) value = value.replace(/-/g, "/").replace(/T/, " "); + value = new Date(value); + } + else continue; + object[key] = value; + } + return object; + } + + // https://github.com/d3/d3-dsv/issues/45 + var fixtz = new Date("2019-01-01T00:00").getHours() || new Date("2019-07-01T00:00").getHours(); + + function responseBlob(response) { + if (!response.ok) throw new Error(response.status + " " + response.statusText); + return response.blob(); + } + + function blob(input, init) { + return fetch(input, init).then(responseBlob); + } + + function responseArrayBuffer(response) { + if (!response.ok) throw new Error(response.status + " " + response.statusText); + return response.arrayBuffer(); + } + + function buffer(input, init) { + return fetch(input, init).then(responseArrayBuffer); + } + + function responseText(response) { + if (!response.ok) throw new Error(response.status + " " + response.statusText); + return response.text(); + } + + function text(input, init) { + return fetch(input, init).then(responseText); + } + + function dsvParse(parse) { + return function(input, init, row) { + if (arguments.length === 2 && typeof init === "function") row = init, init = undefined; + return text(input, init).then(function(response) { + return parse(response, row); + }); + }; + } + + function dsv(delimiter, input, init, row) { + if (arguments.length === 3 && typeof init === "function") row = init, init = undefined; + var format = dsvFormat(delimiter); + return text(input, init).then(function(response) { + return format.parse(response, row); + }); + } + + var csv$1 = dsvParse(csvParse); + var tsv$1 = dsvParse(tsvParse); + + function image(input, init) { + return new Promise(function(resolve, reject) { + var image = new Image; + for (var key in init) image[key] = init[key]; + image.onerror = reject; + image.onload = function() { resolve(image); }; + image.src = input; + }); + } + + function responseJson(response) { + if (!response.ok) throw new Error(response.status + " " + response.statusText); + if (response.status === 204 || response.status === 205) return; + return response.json(); + } + + function json(input, init) { + return fetch(input, init).then(responseJson); + } + + function parser(type) { + return function(input, init) { + return text(input, init).then(function(text) { + return (new DOMParser).parseFromString(text, type); + }); + }; + } + + var xml = parser("application/xml"); + + var html = parser("text/html"); + + var svg = parser("image/svg+xml"); + + function center$1(x, y) { + var nodes; + + if (x == null) x = 0; + if (y == null) y = 0; + + function force() { + var i, + n = nodes.length, + node, + sx = 0, + sy = 0; + + for (i = 0; i < n; ++i) { + node = nodes[i], sx += node.x, sy += node.y; + } + + for (sx = sx / n - x, sy = sy / n - y, i = 0; i < n; ++i) { + node = nodes[i], node.x -= sx, node.y -= sy; + } + } + + force.initialize = function(_) { + nodes = _; + }; + + force.x = function(_) { + return arguments.length ? (x = +_, force) : x; + }; + + force.y = function(_) { + return arguments.length ? (y = +_, force) : y; + }; + + return force; + } + + function constant$7(x) { + return function() { + return x; + }; + } + + function jiggle() { + return (Math.random() - 0.5) * 1e-6; + } + + function tree_add(d) { + var x = +this._x.call(null, d), + y = +this._y.call(null, d); + return add(this.cover(x, y), x, y, d); + } + + function add(tree, x, y, d) { + if (isNaN(x) || isNaN(y)) return tree; // ignore invalid points + + var parent, + node = tree._root, + leaf = {data: d}, + x0 = tree._x0, + y0 = tree._y0, + x1 = tree._x1, + y1 = tree._y1, + xm, + ym, + xp, + yp, + right, + bottom, + i, + j; + + // If the tree is empty, initialize the root as a leaf. + if (!node) return tree._root = leaf, tree; + + // Find the existing leaf for the new point, or add it. + while (node.length) { + if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm; + if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym; + if (parent = node, !(node = node[i = bottom << 1 | right])) return parent[i] = leaf, tree; + } + + // Is the new point is exactly coincident with the existing point? + xp = +tree._x.call(null, node.data); + yp = +tree._y.call(null, node.data); + if (x === xp && y === yp) return leaf.next = node, parent ? parent[i] = leaf : tree._root = leaf, tree; + + // Otherwise, split the leaf node until the old and new point are separated. + do { + parent = parent ? parent[i] = new Array(4) : tree._root = new Array(4); + if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm; + if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym; + } while ((i = bottom << 1 | right) === (j = (yp >= ym) << 1 | (xp >= xm))); + return parent[j] = node, parent[i] = leaf, tree; + } + + function addAll(data) { + var d, i, n = data.length, + x, + y, + xz = new Array(n), + yz = new Array(n), + x0 = Infinity, + y0 = Infinity, + x1 = -Infinity, + y1 = -Infinity; + + // Compute the points and their extent. + for (i = 0; i < n; ++i) { + if (isNaN(x = +this._x.call(null, d = data[i])) || isNaN(y = +this._y.call(null, d))) continue; + xz[i] = x; + yz[i] = y; + if (x < x0) x0 = x; + if (x > x1) x1 = x; + if (y < y0) y0 = y; + if (y > y1) y1 = y; + } + + // If there were no (valid) points, abort. + if (x0 > x1 || y0 > y1) return this; + + // Expand the tree to cover the new points. + this.cover(x0, y0).cover(x1, y1); + + // Add the new points. + for (i = 0; i < n; ++i) { + add(this, xz[i], yz[i], data[i]); + } + + return this; + } + + function tree_cover(x, y) { + if (isNaN(x = +x) || isNaN(y = +y)) return this; // ignore invalid points + + var x0 = this._x0, + y0 = this._y0, + x1 = this._x1, + y1 = this._y1; + + // If the quadtree has no extent, initialize them. + // Integer extent are necessary so that if we later double the extent, + // the existing quadrant boundaries don’t change due to floating point error! + if (isNaN(x0)) { + x1 = (x0 = Math.floor(x)) + 1; + y1 = (y0 = Math.floor(y)) + 1; + } + + // Otherwise, double repeatedly to cover. + else { + var z = x1 - x0, + node = this._root, + parent, + i; + + while (x0 > x || x >= x1 || y0 > y || y >= y1) { + i = (y < y0) << 1 | (x < x0); + parent = new Array(4), parent[i] = node, node = parent, z *= 2; + switch (i) { + case 0: x1 = x0 + z, y1 = y0 + z; break; + case 1: x0 = x1 - z, y1 = y0 + z; break; + case 2: x1 = x0 + z, y0 = y1 - z; break; + case 3: x0 = x1 - z, y0 = y1 - z; break; + } + } + + if (this._root && this._root.length) this._root = node; + } + + this._x0 = x0; + this._y0 = y0; + this._x1 = x1; + this._y1 = y1; + return this; + } + + function tree_data() { + var data = []; + this.visit(function(node) { + if (!node.length) do data.push(node.data); while (node = node.next) + }); + return data; + } + + function tree_extent(_) { + return arguments.length + ? this.cover(+_[0][0], +_[0][1]).cover(+_[1][0], +_[1][1]) + : isNaN(this._x0) ? undefined : [[this._x0, this._y0], [this._x1, this._y1]]; + } + + function Quad(node, x0, y0, x1, y1) { + this.node = node; + this.x0 = x0; + this.y0 = y0; + this.x1 = x1; + this.y1 = y1; + } + + function tree_find(x, y, radius) { + var data, + x0 = this._x0, + y0 = this._y0, + x1, + y1, + x2, + y2, + x3 = this._x1, + y3 = this._y1, + quads = [], + node = this._root, + q, + i; + + if (node) quads.push(new Quad(node, x0, y0, x3, y3)); + if (radius == null) radius = Infinity; + else { + x0 = x - radius, y0 = y - radius; + x3 = x + radius, y3 = y + radius; + radius *= radius; + } + + while (q = quads.pop()) { + + // Stop searching if this quadrant can’t contain a closer node. + if (!(node = q.node) + || (x1 = q.x0) > x3 + || (y1 = q.y0) > y3 + || (x2 = q.x1) < x0 + || (y2 = q.y1) < y0) continue; + + // Bisect the current quadrant. + if (node.length) { + var xm = (x1 + x2) / 2, + ym = (y1 + y2) / 2; + + quads.push( + new Quad(node[3], xm, ym, x2, y2), + new Quad(node[2], x1, ym, xm, y2), + new Quad(node[1], xm, y1, x2, ym), + new Quad(node[0], x1, y1, xm, ym) + ); + + // Visit the closest quadrant first. + if (i = (y >= ym) << 1 | (x >= xm)) { + q = quads[quads.length - 1]; + quads[quads.length - 1] = quads[quads.length - 1 - i]; + quads[quads.length - 1 - i] = q; + } + } + + // Visit this point. (Visiting coincident points isn’t necessary!) + else { + var dx = x - +this._x.call(null, node.data), + dy = y - +this._y.call(null, node.data), + d2 = dx * dx + dy * dy; + if (d2 < radius) { + var d = Math.sqrt(radius = d2); + x0 = x - d, y0 = y - d; + x3 = x + d, y3 = y + d; + data = node.data; + } + } + } + + return data; + } + + function tree_remove(d) { + if (isNaN(x = +this._x.call(null, d)) || isNaN(y = +this._y.call(null, d))) return this; // ignore invalid points + + var parent, + node = this._root, + retainer, + previous, + next, + x0 = this._x0, + y0 = this._y0, + x1 = this._x1, + y1 = this._y1, + x, + y, + xm, + ym, + right, + bottom, + i, + j; + + // If the tree is empty, initialize the root as a leaf. + if (!node) return this; + + // Find the leaf node for the point. + // While descending, also retain the deepest parent with a non-removed sibling. + if (node.length) while (true) { + if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm; + if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym; + if (!(parent = node, node = node[i = bottom << 1 | right])) return this; + if (!node.length) break; + if (parent[(i + 1) & 3] || parent[(i + 2) & 3] || parent[(i + 3) & 3]) retainer = parent, j = i; + } + + // Find the point to remove. + while (node.data !== d) if (!(previous = node, node = node.next)) return this; + if (next = node.next) delete node.next; + + // If there are multiple coincident points, remove just the point. + if (previous) return (next ? previous.next = next : delete previous.next), this; + + // If this is the root point, remove it. + if (!parent) return this._root = next, this; + + // Remove this leaf. + next ? parent[i] = next : delete parent[i]; + + // If the parent now contains exactly one leaf, collapse superfluous parents. + if ((node = parent[0] || parent[1] || parent[2] || parent[3]) + && node === (parent[3] || parent[2] || parent[1] || parent[0]) + && !node.length) { + if (retainer) retainer[j] = node; + else this._root = node; + } + + return this; + } + + function removeAll(data) { + for (var i = 0, n = data.length; i < n; ++i) this.remove(data[i]); + return this; + } + + function tree_root() { + return this._root; + } + + function tree_size() { + var size = 0; + this.visit(function(node) { + if (!node.length) do ++size; while (node = node.next) + }); + return size; + } + + function tree_visit(callback) { + var quads = [], q, node = this._root, child, x0, y0, x1, y1; + if (node) quads.push(new Quad(node, this._x0, this._y0, this._x1, this._y1)); + while (q = quads.pop()) { + if (!callback(node = q.node, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1) && node.length) { + var xm = (x0 + x1) / 2, ym = (y0 + y1) / 2; + if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1)); + if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1)); + if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym)); + if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym)); + } + } + return this; + } + + function tree_visitAfter(callback) { + var quads = [], next = [], q; + if (this._root) quads.push(new Quad(this._root, this._x0, this._y0, this._x1, this._y1)); + while (q = quads.pop()) { + var node = q.node; + if (node.length) { + var child, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1, xm = (x0 + x1) / 2, ym = (y0 + y1) / 2; + if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym)); + if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym)); + if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1)); + if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1)); + } + next.push(q); + } + while (q = next.pop()) { + callback(q.node, q.x0, q.y0, q.x1, q.y1); + } + return this; + } + + function defaultX$1(d) { + return d[0]; + } + + function tree_x(_) { + return arguments.length ? (this._x = _, this) : this._x; + } + + function defaultY$1(d) { + return d[1]; + } + + function tree_y(_) { + return arguments.length ? (this._y = _, this) : this._y; + } + + function quadtree(nodes, x, y) { + var tree = new Quadtree(x == null ? defaultX$1 : x, y == null ? defaultY$1 : y, NaN, NaN, NaN, NaN); + return nodes == null ? tree : tree.addAll(nodes); + } + + function Quadtree(x, y, x0, y0, x1, y1) { + this._x = x; + this._y = y; + this._x0 = x0; + this._y0 = y0; + this._x1 = x1; + this._y1 = y1; + this._root = undefined; + } + + function leaf_copy(leaf) { + var copy = {data: leaf.data}, next = copy; + while (leaf = leaf.next) next = next.next = {data: leaf.data}; + return copy; + } + + var treeProto = quadtree.prototype = Quadtree.prototype; + + treeProto.copy = function() { + var copy = new Quadtree(this._x, this._y, this._x0, this._y0, this._x1, this._y1), + node = this._root, + nodes, + child; + + if (!node) return copy; + + if (!node.length) return copy._root = leaf_copy(node), copy; + + nodes = [{source: node, target: copy._root = new Array(4)}]; + while (node = nodes.pop()) { + for (var i = 0; i < 4; ++i) { + if (child = node.source[i]) { + if (child.length) nodes.push({source: child, target: node.target[i] = new Array(4)}); + else node.target[i] = leaf_copy(child); + } + } + } + + return copy; + }; + + treeProto.add = tree_add; + treeProto.addAll = addAll; + treeProto.cover = tree_cover; + treeProto.data = tree_data; + treeProto.extent = tree_extent; + treeProto.find = tree_find; + treeProto.remove = tree_remove; + treeProto.removeAll = removeAll; + treeProto.root = tree_root; + treeProto.size = tree_size; + treeProto.visit = tree_visit; + treeProto.visitAfter = tree_visitAfter; + treeProto.x = tree_x; + treeProto.y = tree_y; + + function x(d) { + return d.x + d.vx; + } + + function y(d) { + return d.y + d.vy; + } + + function collide(radius) { + var nodes, + radii, + strength = 1, + iterations = 1; + + if (typeof radius !== "function") radius = constant$7(radius == null ? 1 : +radius); + + function force() { + var i, n = nodes.length, + tree, + node, + xi, + yi, + ri, + ri2; + + for (var k = 0; k < iterations; ++k) { + tree = quadtree(nodes, x, y).visitAfter(prepare); + for (i = 0; i < n; ++i) { + node = nodes[i]; + ri = radii[node.index], ri2 = ri * ri; + xi = node.x + node.vx; + yi = node.y + node.vy; + tree.visit(apply); + } + } + + function apply(quad, x0, y0, x1, y1) { + var data = quad.data, rj = quad.r, r = ri + rj; + if (data) { + if (data.index > node.index) { + var x = xi - data.x - data.vx, + y = yi - data.y - data.vy, + l = x * x + y * y; + if (l < r * r) { + if (x === 0) x = jiggle(), l += x * x; + if (y === 0) y = jiggle(), l += y * y; + l = (r - (l = Math.sqrt(l))) / l * strength; + node.vx += (x *= l) * (r = (rj *= rj) / (ri2 + rj)); + node.vy += (y *= l) * r; + data.vx -= x * (r = 1 - r); + data.vy -= y * r; + } + } + return; + } + return x0 > xi + r || x1 < xi - r || y0 > yi + r || y1 < yi - r; + } + } + + function prepare(quad) { + if (quad.data) return quad.r = radii[quad.data.index]; + for (var i = quad.r = 0; i < 4; ++i) { + if (quad[i] && quad[i].r > quad.r) { + quad.r = quad[i].r; + } + } + } + + function initialize() { + if (!nodes) return; + var i, n = nodes.length, node; + radii = new Array(n); + for (i = 0; i < n; ++i) node = nodes[i], radii[node.index] = +radius(node, i, nodes); + } + + force.initialize = function(_) { + nodes = _; + initialize(); + }; + + force.iterations = function(_) { + return arguments.length ? (iterations = +_, force) : iterations; + }; + + force.strength = function(_) { + return arguments.length ? (strength = +_, force) : strength; + }; + + force.radius = function(_) { + return arguments.length ? (radius = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : radius; + }; + + return force; + } + + function index(d) { + return d.index; + } + + function find(nodeById, nodeId) { + var node = nodeById.get(nodeId); + if (!node) throw new Error("missing: " + nodeId); + return node; + } + + function link(links) { + var id = index, + strength = defaultStrength, + strengths, + distance = constant$7(30), + distances, + nodes, + count, + bias, + iterations = 1; + + if (links == null) links = []; + + function defaultStrength(link) { + return 1 / Math.min(count[link.source.index], count[link.target.index]); + } + + function force(alpha) { + for (var k = 0, n = links.length; k < iterations; ++k) { + for (var i = 0, link, source, target, x, y, l, b; i < n; ++i) { + link = links[i], source = link.source, target = link.target; + x = target.x + target.vx - source.x - source.vx || jiggle(); + y = target.y + target.vy - source.y - source.vy || jiggle(); + l = Math.sqrt(x * x + y * y); + l = (l - distances[i]) / l * alpha * strengths[i]; + x *= l, y *= l; + target.vx -= x * (b = bias[i]); + target.vy -= y * b; + source.vx += x * (b = 1 - b); + source.vy += y * b; + } + } + } + + function initialize() { + if (!nodes) return; + + var i, + n = nodes.length, + m = links.length, + nodeById = map$1(nodes, id), + link; + + for (i = 0, count = new Array(n); i < m; ++i) { + link = links[i], link.index = i; + if (typeof link.source !== "object") link.source = find(nodeById, link.source); + if (typeof link.target !== "object") link.target = find(nodeById, link.target); + count[link.source.index] = (count[link.source.index] || 0) + 1; + count[link.target.index] = (count[link.target.index] || 0) + 1; + } + + for (i = 0, bias = new Array(m); i < m; ++i) { + link = links[i], bias[i] = count[link.source.index] / (count[link.source.index] + count[link.target.index]); + } + + strengths = new Array(m), initializeStrength(); + distances = new Array(m), initializeDistance(); + } + + function initializeStrength() { + if (!nodes) return; + + for (var i = 0, n = links.length; i < n; ++i) { + strengths[i] = +strength(links[i], i, links); + } + } + + function initializeDistance() { + if (!nodes) return; + + for (var i = 0, n = links.length; i < n; ++i) { + distances[i] = +distance(links[i], i, links); + } + } + + force.initialize = function(_) { + nodes = _; + initialize(); + }; + + force.links = function(_) { + return arguments.length ? (links = _, initialize(), force) : links; + }; + + force.id = function(_) { + return arguments.length ? (id = _, force) : id; + }; + + force.iterations = function(_) { + return arguments.length ? (iterations = +_, force) : iterations; + }; + + force.strength = function(_) { + return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initializeStrength(), force) : strength; + }; + + force.distance = function(_) { + return arguments.length ? (distance = typeof _ === "function" ? _ : constant$7(+_), initializeDistance(), force) : distance; + }; + + return force; + } + + function x$1(d) { + return d.x; + } + + function y$1(d) { + return d.y; + } + + var initialRadius = 10, + initialAngle = Math.PI * (3 - Math.sqrt(5)); + + function simulation(nodes) { + var simulation, + alpha = 1, + alphaMin = 0.001, + alphaDecay = 1 - Math.pow(alphaMin, 1 / 300), + alphaTarget = 0, + velocityDecay = 0.6, + forces = map$1(), + stepper = timer(step), + event = dispatch("tick", "end"); + + if (nodes == null) nodes = []; + + function step() { + tick(); + event.call("tick", simulation); + if (alpha < alphaMin) { + stepper.stop(); + event.call("end", simulation); + } + } + + function tick(iterations) { + var i, n = nodes.length, node; + + if (iterations === undefined) iterations = 1; + + for (var k = 0; k < iterations; ++k) { + alpha += (alphaTarget - alpha) * alphaDecay; + + forces.each(function (force) { + force(alpha); + }); + + for (i = 0; i < n; ++i) { + node = nodes[i]; + if (node.fx == null) node.x += node.vx *= velocityDecay; + else node.x = node.fx, node.vx = 0; + if (node.fy == null) node.y += node.vy *= velocityDecay; + else node.y = node.fy, node.vy = 0; + } + } + + return simulation; + } + + function initializeNodes() { + for (var i = 0, n = nodes.length, node; i < n; ++i) { + node = nodes[i], node.index = i; + if (node.fx != null) node.x = node.fx; + if (node.fy != null) node.y = node.fy; + if (isNaN(node.x) || isNaN(node.y)) { + var radius = initialRadius * Math.sqrt(i), angle = i * initialAngle; + node.x = radius * Math.cos(angle); + node.y = radius * Math.sin(angle); + } + if (isNaN(node.vx) || isNaN(node.vy)) { + node.vx = node.vy = 0; + } + } + } + + function initializeForce(force) { + if (force.initialize) force.initialize(nodes); + return force; + } + + initializeNodes(); + + return simulation = { + tick: tick, + + restart: function() { + return stepper.restart(step), simulation; + }, + + stop: function() { + return stepper.stop(), simulation; + }, + + nodes: function(_) { + return arguments.length ? (nodes = _, initializeNodes(), forces.each(initializeForce), simulation) : nodes; + }, + + alpha: function(_) { + return arguments.length ? (alpha = +_, simulation) : alpha; + }, + + alphaMin: function(_) { + return arguments.length ? (alphaMin = +_, simulation) : alphaMin; + }, + + alphaDecay: function(_) { + return arguments.length ? (alphaDecay = +_, simulation) : +alphaDecay; + }, + + alphaTarget: function(_) { + return arguments.length ? (alphaTarget = +_, simulation) : alphaTarget; + }, + + velocityDecay: function(_) { + return arguments.length ? (velocityDecay = 1 - _, simulation) : 1 - velocityDecay; + }, + + force: function(name, _) { + return arguments.length > 1 ? ((_ == null ? forces.remove(name) : forces.set(name, initializeForce(_))), simulation) : forces.get(name); + }, + + find: function(x, y, radius) { + var i = 0, + n = nodes.length, + dx, + dy, + d2, + node, + closest; + + if (radius == null) radius = Infinity; + else radius *= radius; + + for (i = 0; i < n; ++i) { + node = nodes[i]; + dx = x - node.x; + dy = y - node.y; + d2 = dx * dx + dy * dy; + if (d2 < radius) closest = node, radius = d2; + } + + return closest; + }, + + on: function(name, _) { + return arguments.length > 1 ? (event.on(name, _), simulation) : event.on(name); + } + }; + } + + function manyBody() { + var nodes, + node, + alpha, + strength = constant$7(-30), + strengths, + distanceMin2 = 1, + distanceMax2 = Infinity, + theta2 = 0.81; + + function force(_) { + var i, n = nodes.length, tree = quadtree(nodes, x$1, y$1).visitAfter(accumulate); + for (alpha = _, i = 0; i < n; ++i) node = nodes[i], tree.visit(apply); + } + + function initialize() { + if (!nodes) return; + var i, n = nodes.length, node; + strengths = new Array(n); + for (i = 0; i < n; ++i) node = nodes[i], strengths[node.index] = +strength(node, i, nodes); + } + + function accumulate(quad) { + var strength = 0, q, c, weight = 0, x, y, i; + + // For internal nodes, accumulate forces from child quadrants. + if (quad.length) { + for (x = y = i = 0; i < 4; ++i) { + if ((q = quad[i]) && (c = Math.abs(q.value))) { + strength += q.value, weight += c, x += c * q.x, y += c * q.y; + } + } + quad.x = x / weight; + quad.y = y / weight; + } + + // For leaf nodes, accumulate forces from coincident quadrants. + else { + q = quad; + q.x = q.data.x; + q.y = q.data.y; + do strength += strengths[q.data.index]; + while (q = q.next); + } + + quad.value = strength; + } + + function apply(quad, x1, _, x2) { + if (!quad.value) return true; + + var x = quad.x - node.x, + y = quad.y - node.y, + w = x2 - x1, + l = x * x + y * y; + + // Apply the Barnes-Hut approximation if possible. + // Limit forces for very close nodes; randomize direction if coincident. + if (w * w / theta2 < l) { + if (l < distanceMax2) { + if (x === 0) x = jiggle(), l += x * x; + if (y === 0) y = jiggle(), l += y * y; + if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l); + node.vx += x * quad.value * alpha / l; + node.vy += y * quad.value * alpha / l; + } + return true; + } + + // Otherwise, process points directly. + else if (quad.length || l >= distanceMax2) return; + + // Limit forces for very close nodes; randomize direction if coincident. + if (quad.data !== node || quad.next) { + if (x === 0) x = jiggle(), l += x * x; + if (y === 0) y = jiggle(), l += y * y; + if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l); + } + + do if (quad.data !== node) { + w = strengths[quad.data.index] * alpha / l; + node.vx += x * w; + node.vy += y * w; + } while (quad = quad.next); + } + + force.initialize = function(_) { + nodes = _; + initialize(); + }; + + force.strength = function(_) { + return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : strength; + }; + + force.distanceMin = function(_) { + return arguments.length ? (distanceMin2 = _ * _, force) : Math.sqrt(distanceMin2); + }; + + force.distanceMax = function(_) { + return arguments.length ? (distanceMax2 = _ * _, force) : Math.sqrt(distanceMax2); + }; + + force.theta = function(_) { + return arguments.length ? (theta2 = _ * _, force) : Math.sqrt(theta2); + }; + + return force; + } + + function radial(radius, x, y) { + var nodes, + strength = constant$7(0.1), + strengths, + radiuses; + + if (typeof radius !== "function") radius = constant$7(+radius); + if (x == null) x = 0; + if (y == null) y = 0; + + function force(alpha) { + for (var i = 0, n = nodes.length; i < n; ++i) { + var node = nodes[i], + dx = node.x - x || 1e-6, + dy = node.y - y || 1e-6, + r = Math.sqrt(dx * dx + dy * dy), + k = (radiuses[i] - r) * strengths[i] * alpha / r; + node.vx += dx * k; + node.vy += dy * k; + } + } + + function initialize() { + if (!nodes) return; + var i, n = nodes.length; + strengths = new Array(n); + radiuses = new Array(n); + for (i = 0; i < n; ++i) { + radiuses[i] = +radius(nodes[i], i, nodes); + strengths[i] = isNaN(radiuses[i]) ? 0 : +strength(nodes[i], i, nodes); + } + } + + force.initialize = function(_) { + nodes = _, initialize(); + }; + + force.strength = function(_) { + return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : strength; + }; + + force.radius = function(_) { + return arguments.length ? (radius = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : radius; + }; + + force.x = function(_) { + return arguments.length ? (x = +_, force) : x; + }; + + force.y = function(_) { + return arguments.length ? (y = +_, force) : y; + }; + + return force; + } + + function x$2(x) { + var strength = constant$7(0.1), + nodes, + strengths, + xz; + + if (typeof x !== "function") x = constant$7(x == null ? 0 : +x); + + function force(alpha) { + for (var i = 0, n = nodes.length, node; i < n; ++i) { + node = nodes[i], node.vx += (xz[i] - node.x) * strengths[i] * alpha; + } + } + + function initialize() { + if (!nodes) return; + var i, n = nodes.length; + strengths = new Array(n); + xz = new Array(n); + for (i = 0; i < n; ++i) { + strengths[i] = isNaN(xz[i] = +x(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes); + } + } + + force.initialize = function(_) { + nodes = _; + initialize(); + }; + + force.strength = function(_) { + return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : strength; + }; + + force.x = function(_) { + return arguments.length ? (x = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : x; + }; + + return force; + } + + function y$2(y) { + var strength = constant$7(0.1), + nodes, + strengths, + yz; + + if (typeof y !== "function") y = constant$7(y == null ? 0 : +y); + + function force(alpha) { + for (var i = 0, n = nodes.length, node; i < n; ++i) { + node = nodes[i], node.vy += (yz[i] - node.y) * strengths[i] * alpha; + } + } + + function initialize() { + if (!nodes) return; + var i, n = nodes.length; + strengths = new Array(n); + yz = new Array(n); + for (i = 0; i < n; ++i) { + strengths[i] = isNaN(yz[i] = +y(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes); + } + } + + force.initialize = function(_) { + nodes = _; + initialize(); + }; + + force.strength = function(_) { + return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : strength; + }; + + force.y = function(_) { + return arguments.length ? (y = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : y; + }; + + return force; + } + + // Computes the decimal coefficient and exponent of the specified number x with + // significant digits p, where x is positive and p is in [1, 21] or undefined. + // For example, formatDecimal(1.23) returns ["123", 0]. + function formatDecimal(x, p) { + if ((i = (x = p ? x.toExponential(p - 1) : x.toExponential()).indexOf("e")) < 0) return null; // NaN, ±Infinity + var i, coefficient = x.slice(0, i); + + // The string returned by toExponential either has the form \d\.\d+e[-+]\d+ + // (e.g., 1.2e+3) or the form \de[-+]\d+ (e.g., 1e+3). + return [ + coefficient.length > 1 ? coefficient[0] + coefficient.slice(2) : coefficient, + +x.slice(i + 1) + ]; + } + + function exponent$1(x) { + return x = formatDecimal(Math.abs(x)), x ? x[1] : NaN; + } + + function formatGroup(grouping, thousands) { + return function(value, width) { + var i = value.length, + t = [], + j = 0, + g = grouping[0], + length = 0; + + while (i > 0 && g > 0) { + if (length + g + 1 > width) g = Math.max(1, width - length); + t.push(value.substring(i -= g, i + g)); + if ((length += g + 1) > width) break; + g = grouping[j = (j + 1) % grouping.length]; + } + + return t.reverse().join(thousands); + }; + } + + function formatNumerals(numerals) { + return function(value) { + return value.replace(/[0-9]/g, function(i) { + return numerals[+i]; + }); + }; + } + + // [[fill]align][sign][symbol][0][width][,][.precision][~][type] + var re = /^(?:(.)?([<>=^]))?([+\-( ])?([$#])?(0)?(\d+)?(,)?(\.\d+)?(~)?([a-z%])?$/i; + + function formatSpecifier(specifier) { + if (!(match = re.exec(specifier))) throw new Error("invalid format: " + specifier); + var match; + return new FormatSpecifier({ + fill: match[1], + align: match[2], + sign: match[3], + symbol: match[4], + zero: match[5], + width: match[6], + comma: match[7], + precision: match[8] && match[8].slice(1), + trim: match[9], + type: match[10] + }); + } + + formatSpecifier.prototype = FormatSpecifier.prototype; // instanceof + + function FormatSpecifier(specifier) { + this.fill = specifier.fill === undefined ? " " : specifier.fill + ""; + this.align = specifier.align === undefined ? ">" : specifier.align + ""; + this.sign = specifier.sign === undefined ? "-" : specifier.sign + ""; + this.symbol = specifier.symbol === undefined ? "" : specifier.symbol + ""; + this.zero = !!specifier.zero; + this.width = specifier.width === undefined ? undefined : +specifier.width; + this.comma = !!specifier.comma; + this.precision = specifier.precision === undefined ? undefined : +specifier.precision; + this.trim = !!specifier.trim; + this.type = specifier.type === undefined ? "" : specifier.type + ""; + } + + FormatSpecifier.prototype.toString = function() { + return this.fill + + this.align + + this.sign + + this.symbol + + (this.zero ? "0" : "") + + (this.width === undefined ? "" : Math.max(1, this.width | 0)) + + (this.comma ? "," : "") + + (this.precision === undefined ? "" : "." + Math.max(0, this.precision | 0)) + + (this.trim ? "~" : "") + + this.type; + }; + + // Trims insignificant zeros, e.g., replaces 1.2000k with 1.2k. + function formatTrim(s) { + out: for (var n = s.length, i = 1, i0 = -1, i1; i < n; ++i) { + switch (s[i]) { + case ".": i0 = i1 = i; break; + case "0": if (i0 === 0) i0 = i; i1 = i; break; + default: if (!+s[i]) break out; if (i0 > 0) i0 = 0; break; + } + } + return i0 > 0 ? s.slice(0, i0) + s.slice(i1 + 1) : s; + } + + var prefixExponent; + + function formatPrefixAuto(x, p) { + var d = formatDecimal(x, p); + if (!d) return x + ""; + var coefficient = d[0], + exponent = d[1], + i = exponent - (prefixExponent = Math.max(-8, Math.min(8, Math.floor(exponent / 3))) * 3) + 1, + n = coefficient.length; + return i === n ? coefficient + : i > n ? coefficient + new Array(i - n + 1).join("0") + : i > 0 ? coefficient.slice(0, i) + "." + coefficient.slice(i) + : "0." + new Array(1 - i).join("0") + formatDecimal(x, Math.max(0, p + i - 1))[0]; // less than 1y! + } + + function formatRounded(x, p) { + var d = formatDecimal(x, p); + if (!d) return x + ""; + var coefficient = d[0], + exponent = d[1]; + return exponent < 0 ? "0." + new Array(-exponent).join("0") + coefficient + : coefficient.length > exponent + 1 ? coefficient.slice(0, exponent + 1) + "." + coefficient.slice(exponent + 1) + : coefficient + new Array(exponent - coefficient.length + 2).join("0"); + } + + var formatTypes = { + "%": function(x, p) { return (x * 100).toFixed(p); }, + "b": function(x) { return Math.round(x).toString(2); }, + "c": function(x) { return x + ""; }, + "d": function(x) { return Math.round(x).toString(10); }, + "e": function(x, p) { return x.toExponential(p); }, + "f": function(x, p) { return x.toFixed(p); }, + "g": function(x, p) { return x.toPrecision(p); }, + "o": function(x) { return Math.round(x).toString(8); }, + "p": function(x, p) { return formatRounded(x * 100, p); }, + "r": formatRounded, + "s": formatPrefixAuto, + "X": function(x) { return Math.round(x).toString(16).toUpperCase(); }, + "x": function(x) { return Math.round(x).toString(16); } + }; + + function identity$3(x) { + return x; + } + + var map$2 = Array.prototype.map, + prefixes = ["y","z","a","f","p","n","µ","m","","k","M","G","T","P","E","Z","Y"]; + + function formatLocale(locale) { + var group = locale.grouping === undefined || locale.thousands === undefined ? identity$3 : formatGroup(map$2.call(locale.grouping, Number), locale.thousands + ""), + currencyPrefix = locale.currency === undefined ? "" : locale.currency[0] + "", + currencySuffix = locale.currency === undefined ? "" : locale.currency[1] + "", + decimal = locale.decimal === undefined ? "." : locale.decimal + "", + numerals = locale.numerals === undefined ? identity$3 : formatNumerals(map$2.call(locale.numerals, String)), + percent = locale.percent === undefined ? "%" : locale.percent + "", + minus = locale.minus === undefined ? "-" : locale.minus + "", + nan = locale.nan === undefined ? "NaN" : locale.nan + ""; + + function newFormat(specifier) { + specifier = formatSpecifier(specifier); + + var fill = specifier.fill, + align = specifier.align, + sign = specifier.sign, + symbol = specifier.symbol, + zero = specifier.zero, + width = specifier.width, + comma = specifier.comma, + precision = specifier.precision, + trim = specifier.trim, + type = specifier.type; + + // The "n" type is an alias for ",g". + if (type === "n") comma = true, type = "g"; + + // The "" type, and any invalid type, is an alias for ".12~g". + else if (!formatTypes[type]) precision === undefined && (precision = 12), trim = true, type = "g"; + + // If zero fill is specified, padding goes after sign and before digits. + if (zero || (fill === "0" && align === "=")) zero = true, fill = "0", align = "="; + + // Compute the prefix and suffix. + // For SI-prefix, the suffix is lazily computed. + var prefix = symbol === "$" ? currencyPrefix : symbol === "#" && /[boxX]/.test(type) ? "0" + type.toLowerCase() : "", + suffix = symbol === "$" ? currencySuffix : /[%p]/.test(type) ? percent : ""; + + // What format function should we use? + // Is this an integer type? + // Can this type generate exponential notation? + var formatType = formatTypes[type], + maybeSuffix = /[defgprs%]/.test(type); + + // Set the default precision if not specified, + // or clamp the specified precision to the supported range. + // For significant precision, it must be in [1, 21]. + // For fixed precision, it must be in [0, 20]. + precision = precision === undefined ? 6 + : /[gprs]/.test(type) ? Math.max(1, Math.min(21, precision)) + : Math.max(0, Math.min(20, precision)); + + function format(value) { + var valuePrefix = prefix, + valueSuffix = suffix, + i, n, c; + + if (type === "c") { + valueSuffix = formatType(value) + valueSuffix; + value = ""; + } else { + value = +value; + + // Determine the sign. -0 is not less than 0, but 1 / -0 is! + var valueNegative = value < 0 || 1 / value < 0; + + // Perform the initial formatting. + value = isNaN(value) ? nan : formatType(Math.abs(value), precision); + + // Trim insignificant zeros. + if (trim) value = formatTrim(value); + + // If a negative value rounds to zero after formatting, and no explicit positive sign is requested, hide the sign. + if (valueNegative && +value === 0 && sign !== "+") valueNegative = false; + + // Compute the prefix and suffix. + valuePrefix = (valueNegative ? (sign === "(" ? sign : minus) : sign === "-" || sign === "(" ? "" : sign) + valuePrefix; + valueSuffix = (type === "s" ? prefixes[8 + prefixExponent / 3] : "") + valueSuffix + (valueNegative && sign === "(" ? ")" : ""); + + // Break the formatted value into the integer “value” part that can be + // grouped, and fractional or exponential “suffix” part that is not. + if (maybeSuffix) { + i = -1, n = value.length; + while (++i < n) { + if (c = value.charCodeAt(i), 48 > c || c > 57) { + valueSuffix = (c === 46 ? decimal + value.slice(i + 1) : value.slice(i)) + valueSuffix; + value = value.slice(0, i); + break; + } + } + } + } + + // If the fill character is not "0", grouping is applied before padding. + if (comma && !zero) value = group(value, Infinity); + + // Compute the padding. + var length = valuePrefix.length + value.length + valueSuffix.length, + padding = length < width ? new Array(width - length + 1).join(fill) : ""; + + // If the fill character is "0", grouping is applied after padding. + if (comma && zero) value = group(padding + value, padding.length ? width - valueSuffix.length : Infinity), padding = ""; + + // Reconstruct the final output based on the desired alignment. + switch (align) { + case "<": value = valuePrefix + value + valueSuffix + padding; break; + case "=": value = valuePrefix + padding + value + valueSuffix; break; + case "^": value = padding.slice(0, length = padding.length >> 1) + valuePrefix + value + valueSuffix + padding.slice(length); break; + default: value = padding + valuePrefix + value + valueSuffix; break; + } + + return numerals(value); + } + + format.toString = function() { + return specifier + ""; + }; + + return format; + } + + function formatPrefix(specifier, value) { + var f = newFormat((specifier = formatSpecifier(specifier), specifier.type = "f", specifier)), + e = Math.max(-8, Math.min(8, Math.floor(exponent$1(value) / 3))) * 3, + k = Math.pow(10, -e), + prefix = prefixes[8 + e / 3]; + return function(value) { + return f(k * value) + prefix; + }; + } + + return { + format: newFormat, + formatPrefix: formatPrefix + }; + } + + var locale; + var format; + var formatPrefix; + + defaultLocale({ + decimal: ".", + thousands: ",", + grouping: [3], + currency: ["$", ""], + minus: "-" + }); + + function defaultLocale(definition) { + locale = formatLocale(definition); + format = locale.format; + formatPrefix = locale.formatPrefix; + return locale; + } + + function precisionFixed(step) { + return Math.max(0, -exponent$1(Math.abs(step))); + } + + function precisionPrefix(step, value) { + return Math.max(0, Math.max(-8, Math.min(8, Math.floor(exponent$1(value) / 3))) * 3 - exponent$1(Math.abs(step))); + } + + function precisionRound(step, max) { + step = Math.abs(step), max = Math.abs(max) - step; + return Math.max(0, exponent$1(max) - exponent$1(step)) + 1; + } + + // Adds floating point numbers with twice the normal precision. + // Reference: J. R. Shewchuk, Adaptive Precision Floating-Point Arithmetic and + // Fast Robust Geometric Predicates, Discrete & Computational Geometry 18(3) + // 305–363 (1997). + // Code adapted from GeographicLib by Charles F. F. Karney, + // http://geographiclib.sourceforge.net/ + + function adder() { + return new Adder; + } + + function Adder() { + this.reset(); + } + + Adder.prototype = { + constructor: Adder, + reset: function() { + this.s = // rounded value + this.t = 0; // exact error + }, + add: function(y) { + add$1(temp, y, this.t); + add$1(this, temp.s, this.s); + if (this.s) this.t += temp.t; + else this.s = temp.t; + }, + valueOf: function() { + return this.s; + } + }; + + var temp = new Adder; + + function add$1(adder, a, b) { + var x = adder.s = a + b, + bv = x - a, + av = x - bv; + adder.t = (a - av) + (b - bv); + } + + var epsilon$2 = 1e-6; + var epsilon2$1 = 1e-12; + var pi$3 = Math.PI; + var halfPi$2 = pi$3 / 2; + var quarterPi = pi$3 / 4; + var tau$3 = pi$3 * 2; + + var degrees$1 = 180 / pi$3; + var radians = pi$3 / 180; + + var abs = Math.abs; + var atan = Math.atan; + var atan2 = Math.atan2; + var cos$1 = Math.cos; + var ceil = Math.ceil; + var exp = Math.exp; + var log = Math.log; + var pow = Math.pow; + var sin$1 = Math.sin; + var sign = Math.sign || function(x) { return x > 0 ? 1 : x < 0 ? -1 : 0; }; + var sqrt = Math.sqrt; + var tan = Math.tan; + + function acos(x) { + return x > 1 ? 0 : x < -1 ? pi$3 : Math.acos(x); + } + + function asin(x) { + return x > 1 ? halfPi$2 : x < -1 ? -halfPi$2 : Math.asin(x); + } + + function haversin(x) { + return (x = sin$1(x / 2)) * x; + } + + function noop$2() {} + + function streamGeometry(geometry, stream) { + if (geometry && streamGeometryType.hasOwnProperty(geometry.type)) { + streamGeometryType[geometry.type](geometry, stream); + } + } + + var streamObjectType = { + Feature: function(object, stream) { + streamGeometry(object.geometry, stream); + }, + FeatureCollection: function(object, stream) { + var features = object.features, i = -1, n = features.length; + while (++i < n) streamGeometry(features[i].geometry, stream); + } + }; + + var streamGeometryType = { + Sphere: function(object, stream) { + stream.sphere(); + }, + Point: function(object, stream) { + object = object.coordinates; + stream.point(object[0], object[1], object[2]); + }, + MultiPoint: function(object, stream) { + var coordinates = object.coordinates, i = -1, n = coordinates.length; + while (++i < n) object = coordinates[i], stream.point(object[0], object[1], object[2]); + }, + LineString: function(object, stream) { + streamLine(object.coordinates, stream, 0); + }, + MultiLineString: function(object, stream) { + var coordinates = object.coordinates, i = -1, n = coordinates.length; + while (++i < n) streamLine(coordinates[i], stream, 0); + }, + Polygon: function(object, stream) { + streamPolygon(object.coordinates, stream); + }, + MultiPolygon: function(object, stream) { + var coordinates = object.coordinates, i = -1, n = coordinates.length; + while (++i < n) streamPolygon(coordinates[i], stream); + }, + GeometryCollection: function(object, stream) { + var geometries = object.geometries, i = -1, n = geometries.length; + while (++i < n) streamGeometry(geometries[i], stream); + } + }; + + function streamLine(coordinates, stream, closed) { + var i = -1, n = coordinates.length - closed, coordinate; + stream.lineStart(); + while (++i < n) coordinate = coordinates[i], stream.point(coordinate[0], coordinate[1], coordinate[2]); + stream.lineEnd(); + } + + function streamPolygon(coordinates, stream) { + var i = -1, n = coordinates.length; + stream.polygonStart(); + while (++i < n) streamLine(coordinates[i], stream, 1); + stream.polygonEnd(); + } + + function geoStream(object, stream) { + if (object && streamObjectType.hasOwnProperty(object.type)) { + streamObjectType[object.type](object, stream); + } else { + streamGeometry(object, stream); + } + } + + var areaRingSum = adder(); + + var areaSum = adder(), + lambda00, + phi00, + lambda0, + cosPhi0, + sinPhi0; + + var areaStream = { + point: noop$2, + lineStart: noop$2, + lineEnd: noop$2, + polygonStart: function() { + areaRingSum.reset(); + areaStream.lineStart = areaRingStart; + areaStream.lineEnd = areaRingEnd; + }, + polygonEnd: function() { + var areaRing = +areaRingSum; + areaSum.add(areaRing < 0 ? tau$3 + areaRing : areaRing); + this.lineStart = this.lineEnd = this.point = noop$2; + }, + sphere: function() { + areaSum.add(tau$3); + } + }; + + function areaRingStart() { + areaStream.point = areaPointFirst; + } + + function areaRingEnd() { + areaPoint(lambda00, phi00); + } + + function areaPointFirst(lambda, phi) { + areaStream.point = areaPoint; + lambda00 = lambda, phi00 = phi; + lambda *= radians, phi *= radians; + lambda0 = lambda, cosPhi0 = cos$1(phi = phi / 2 + quarterPi), sinPhi0 = sin$1(phi); + } + + function areaPoint(lambda, phi) { + lambda *= radians, phi *= radians; + phi = phi / 2 + quarterPi; // half the angular distance from south pole + + // Spherical excess E for a spherical triangle with vertices: south pole, + // previous point, current point. Uses a formula derived from Cagnoli’s + // theorem. See Todhunter, Spherical Trig. (1871), Sec. 103, Eq. (2). + var dLambda = lambda - lambda0, + sdLambda = dLambda >= 0 ? 1 : -1, + adLambda = sdLambda * dLambda, + cosPhi = cos$1(phi), + sinPhi = sin$1(phi), + k = sinPhi0 * sinPhi, + u = cosPhi0 * cosPhi + k * cos$1(adLambda), + v = k * sdLambda * sin$1(adLambda); + areaRingSum.add(atan2(v, u)); + + // Advance the previous points. + lambda0 = lambda, cosPhi0 = cosPhi, sinPhi0 = sinPhi; + } + + function area$1(object) { + areaSum.reset(); + geoStream(object, areaStream); + return areaSum * 2; + } + + function spherical(cartesian) { + return [atan2(cartesian[1], cartesian[0]), asin(cartesian[2])]; + } + + function cartesian(spherical) { + var lambda = spherical[0], phi = spherical[1], cosPhi = cos$1(phi); + return [cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi)]; + } + + function cartesianDot(a, b) { + return a[0] * b[0] + a[1] * b[1] + a[2] * b[2]; + } + + function cartesianCross(a, b) { + return [a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0]]; + } + + // TODO return a + function cartesianAddInPlace(a, b) { + a[0] += b[0], a[1] += b[1], a[2] += b[2]; + } + + function cartesianScale(vector, k) { + return [vector[0] * k, vector[1] * k, vector[2] * k]; + } + + // TODO return d + function cartesianNormalizeInPlace(d) { + var l = sqrt(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]); + d[0] /= l, d[1] /= l, d[2] /= l; + } + + var lambda0$1, phi0, lambda1, phi1, // bounds + lambda2, // previous lambda-coordinate + lambda00$1, phi00$1, // first point + p0, // previous 3D point + deltaSum = adder(), + ranges, + range; + + var boundsStream = { + point: boundsPoint, + lineStart: boundsLineStart, + lineEnd: boundsLineEnd, + polygonStart: function() { + boundsStream.point = boundsRingPoint; + boundsStream.lineStart = boundsRingStart; + boundsStream.lineEnd = boundsRingEnd; + deltaSum.reset(); + areaStream.polygonStart(); + }, + polygonEnd: function() { + areaStream.polygonEnd(); + boundsStream.point = boundsPoint; + boundsStream.lineStart = boundsLineStart; + boundsStream.lineEnd = boundsLineEnd; + if (areaRingSum < 0) lambda0$1 = -(lambda1 = 180), phi0 = -(phi1 = 90); + else if (deltaSum > epsilon$2) phi1 = 90; + else if (deltaSum < -epsilon$2) phi0 = -90; + range[0] = lambda0$1, range[1] = lambda1; + }, + sphere: function() { + lambda0$1 = -(lambda1 = 180), phi0 = -(phi1 = 90); + } + }; + + function boundsPoint(lambda, phi) { + ranges.push(range = [lambda0$1 = lambda, lambda1 = lambda]); + if (phi < phi0) phi0 = phi; + if (phi > phi1) phi1 = phi; + } + + function linePoint(lambda, phi) { + var p = cartesian([lambda * radians, phi * radians]); + if (p0) { + var normal = cartesianCross(p0, p), + equatorial = [normal[1], -normal[0], 0], + inflection = cartesianCross(equatorial, normal); + cartesianNormalizeInPlace(inflection); + inflection = spherical(inflection); + var delta = lambda - lambda2, + sign = delta > 0 ? 1 : -1, + lambdai = inflection[0] * degrees$1 * sign, + phii, + antimeridian = abs(delta) > 180; + if (antimeridian ^ (sign * lambda2 < lambdai && lambdai < sign * lambda)) { + phii = inflection[1] * degrees$1; + if (phii > phi1) phi1 = phii; + } else if (lambdai = (lambdai + 360) % 360 - 180, antimeridian ^ (sign * lambda2 < lambdai && lambdai < sign * lambda)) { + phii = -inflection[1] * degrees$1; + if (phii < phi0) phi0 = phii; + } else { + if (phi < phi0) phi0 = phi; + if (phi > phi1) phi1 = phi; + } + if (antimeridian) { + if (lambda < lambda2) { + if (angle(lambda0$1, lambda) > angle(lambda0$1, lambda1)) lambda1 = lambda; + } else { + if (angle(lambda, lambda1) > angle(lambda0$1, lambda1)) lambda0$1 = lambda; + } + } else { + if (lambda1 >= lambda0$1) { + if (lambda < lambda0$1) lambda0$1 = lambda; + if (lambda > lambda1) lambda1 = lambda; + } else { + if (lambda > lambda2) { + if (angle(lambda0$1, lambda) > angle(lambda0$1, lambda1)) lambda1 = lambda; + } else { + if (angle(lambda, lambda1) > angle(lambda0$1, lambda1)) lambda0$1 = lambda; + } + } + } + } else { + ranges.push(range = [lambda0$1 = lambda, lambda1 = lambda]); + } + if (phi < phi0) phi0 = phi; + if (phi > phi1) phi1 = phi; + p0 = p, lambda2 = lambda; + } + + function boundsLineStart() { + boundsStream.point = linePoint; + } + + function boundsLineEnd() { + range[0] = lambda0$1, range[1] = lambda1; + boundsStream.point = boundsPoint; + p0 = null; + } + + function boundsRingPoint(lambda, phi) { + if (p0) { + var delta = lambda - lambda2; + deltaSum.add(abs(delta) > 180 ? delta + (delta > 0 ? 360 : -360) : delta); + } else { + lambda00$1 = lambda, phi00$1 = phi; + } + areaStream.point(lambda, phi); + linePoint(lambda, phi); + } + + function boundsRingStart() { + areaStream.lineStart(); + } + + function boundsRingEnd() { + boundsRingPoint(lambda00$1, phi00$1); + areaStream.lineEnd(); + if (abs(deltaSum) > epsilon$2) lambda0$1 = -(lambda1 = 180); + range[0] = lambda0$1, range[1] = lambda1; + p0 = null; + } + + // Finds the left-right distance between two longitudes. + // This is almost the same as (lambda1 - lambda0 + 360°) % 360°, except that we want + // the distance between ±180° to be 360°. + function angle(lambda0, lambda1) { + return (lambda1 -= lambda0) < 0 ? lambda1 + 360 : lambda1; + } + + function rangeCompare(a, b) { + return a[0] - b[0]; + } + + function rangeContains(range, x) { + return range[0] <= range[1] ? range[0] <= x && x <= range[1] : x < range[0] || range[1] < x; + } + + function bounds(feature) { + var i, n, a, b, merged, deltaMax, delta; + + phi1 = lambda1 = -(lambda0$1 = phi0 = Infinity); + ranges = []; + geoStream(feature, boundsStream); + + // First, sort ranges by their minimum longitudes. + if (n = ranges.length) { + ranges.sort(rangeCompare); + + // Then, merge any ranges that overlap. + for (i = 1, a = ranges[0], merged = [a]; i < n; ++i) { + b = ranges[i]; + if (rangeContains(a, b[0]) || rangeContains(a, b[1])) { + if (angle(a[0], b[1]) > angle(a[0], a[1])) a[1] = b[1]; + if (angle(b[0], a[1]) > angle(a[0], a[1])) a[0] = b[0]; + } else { + merged.push(a = b); + } + } + + // Finally, find the largest gap between the merged ranges. + // The final bounding box will be the inverse of this gap. + for (deltaMax = -Infinity, n = merged.length - 1, i = 0, a = merged[n]; i <= n; a = b, ++i) { + b = merged[i]; + if ((delta = angle(a[1], b[0])) > deltaMax) deltaMax = delta, lambda0$1 = b[0], lambda1 = a[1]; + } + } + + ranges = range = null; + + return lambda0$1 === Infinity || phi0 === Infinity + ? [[NaN, NaN], [NaN, NaN]] + : [[lambda0$1, phi0], [lambda1, phi1]]; + } + + var W0, W1, + X0, Y0, Z0, + X1, Y1, Z1, + X2, Y2, Z2, + lambda00$2, phi00$2, // first point + x0, y0, z0; // previous point + + var centroidStream = { + sphere: noop$2, + point: centroidPoint, + lineStart: centroidLineStart, + lineEnd: centroidLineEnd, + polygonStart: function() { + centroidStream.lineStart = centroidRingStart; + centroidStream.lineEnd = centroidRingEnd; + }, + polygonEnd: function() { + centroidStream.lineStart = centroidLineStart; + centroidStream.lineEnd = centroidLineEnd; + } + }; + + // Arithmetic mean of Cartesian vectors. + function centroidPoint(lambda, phi) { + lambda *= radians, phi *= radians; + var cosPhi = cos$1(phi); + centroidPointCartesian(cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi)); + } + + function centroidPointCartesian(x, y, z) { + ++W0; + X0 += (x - X0) / W0; + Y0 += (y - Y0) / W0; + Z0 += (z - Z0) / W0; + } + + function centroidLineStart() { + centroidStream.point = centroidLinePointFirst; + } + + function centroidLinePointFirst(lambda, phi) { + lambda *= radians, phi *= radians; + var cosPhi = cos$1(phi); + x0 = cosPhi * cos$1(lambda); + y0 = cosPhi * sin$1(lambda); + z0 = sin$1(phi); + centroidStream.point = centroidLinePoint; + centroidPointCartesian(x0, y0, z0); + } + + function centroidLinePoint(lambda, phi) { + lambda *= radians, phi *= radians; + var cosPhi = cos$1(phi), + x = cosPhi * cos$1(lambda), + y = cosPhi * sin$1(lambda), + z = sin$1(phi), + w = atan2(sqrt((w = y0 * z - z0 * y) * w + (w = z0 * x - x0 * z) * w + (w = x0 * y - y0 * x) * w), x0 * x + y0 * y + z0 * z); + W1 += w; + X1 += w * (x0 + (x0 = x)); + Y1 += w * (y0 + (y0 = y)); + Z1 += w * (z0 + (z0 = z)); + centroidPointCartesian(x0, y0, z0); + } + + function centroidLineEnd() { + centroidStream.point = centroidPoint; + } + + // See J. E. Brock, The Inertia Tensor for a Spherical Triangle, + // J. Applied Mechanics 42, 239 (1975). + function centroidRingStart() { + centroidStream.point = centroidRingPointFirst; + } + + function centroidRingEnd() { + centroidRingPoint(lambda00$2, phi00$2); + centroidStream.point = centroidPoint; + } + + function centroidRingPointFirst(lambda, phi) { + lambda00$2 = lambda, phi00$2 = phi; + lambda *= radians, phi *= radians; + centroidStream.point = centroidRingPoint; + var cosPhi = cos$1(phi); + x0 = cosPhi * cos$1(lambda); + y0 = cosPhi * sin$1(lambda); + z0 = sin$1(phi); + centroidPointCartesian(x0, y0, z0); + } + + function centroidRingPoint(lambda, phi) { + lambda *= radians, phi *= radians; + var cosPhi = cos$1(phi), + x = cosPhi * cos$1(lambda), + y = cosPhi * sin$1(lambda), + z = sin$1(phi), + cx = y0 * z - z0 * y, + cy = z0 * x - x0 * z, + cz = x0 * y - y0 * x, + m = sqrt(cx * cx + cy * cy + cz * cz), + w = asin(m), // line weight = angle + v = m && -w / m; // area weight multiplier + X2 += v * cx; + Y2 += v * cy; + Z2 += v * cz; + W1 += w; + X1 += w * (x0 + (x0 = x)); + Y1 += w * (y0 + (y0 = y)); + Z1 += w * (z0 + (z0 = z)); + centroidPointCartesian(x0, y0, z0); + } + + function centroid(object) { + W0 = W1 = + X0 = Y0 = Z0 = + X1 = Y1 = Z1 = + X2 = Y2 = Z2 = 0; + geoStream(object, centroidStream); + + var x = X2, + y = Y2, + z = Z2, + m = x * x + y * y + z * z; + + // If the area-weighted ccentroid is undefined, fall back to length-weighted ccentroid. + if (m < epsilon2$1) { + x = X1, y = Y1, z = Z1; + // If the feature has zero length, fall back to arithmetic mean of point vectors. + if (W1 < epsilon$2) x = X0, y = Y0, z = Z0; + m = x * x + y * y + z * z; + // If the feature still has an undefined ccentroid, then return. + if (m < epsilon2$1) return [NaN, NaN]; + } + + return [atan2(y, x) * degrees$1, asin(z / sqrt(m)) * degrees$1]; + } + + function constant$8(x) { + return function() { + return x; + }; + } + + function compose(a, b) { + + function compose(x, y) { + return x = a(x, y), b(x[0], x[1]); + } + + if (a.invert && b.invert) compose.invert = function(x, y) { + return x = b.invert(x, y), x && a.invert(x[0], x[1]); + }; + + return compose; + } + + function rotationIdentity(lambda, phi) { + return [abs(lambda) > pi$3 ? lambda + Math.round(-lambda / tau$3) * tau$3 : lambda, phi]; + } + + rotationIdentity.invert = rotationIdentity; + + function rotateRadians(deltaLambda, deltaPhi, deltaGamma) { + return (deltaLambda %= tau$3) ? (deltaPhi || deltaGamma ? compose(rotationLambda(deltaLambda), rotationPhiGamma(deltaPhi, deltaGamma)) + : rotationLambda(deltaLambda)) + : (deltaPhi || deltaGamma ? rotationPhiGamma(deltaPhi, deltaGamma) + : rotationIdentity); + } + + function forwardRotationLambda(deltaLambda) { + return function(lambda, phi) { + return lambda += deltaLambda, [lambda > pi$3 ? lambda - tau$3 : lambda < -pi$3 ? lambda + tau$3 : lambda, phi]; + }; + } + + function rotationLambda(deltaLambda) { + var rotation = forwardRotationLambda(deltaLambda); + rotation.invert = forwardRotationLambda(-deltaLambda); + return rotation; + } + + function rotationPhiGamma(deltaPhi, deltaGamma) { + var cosDeltaPhi = cos$1(deltaPhi), + sinDeltaPhi = sin$1(deltaPhi), + cosDeltaGamma = cos$1(deltaGamma), + sinDeltaGamma = sin$1(deltaGamma); + + function rotation(lambda, phi) { + var cosPhi = cos$1(phi), + x = cos$1(lambda) * cosPhi, + y = sin$1(lambda) * cosPhi, + z = sin$1(phi), + k = z * cosDeltaPhi + x * sinDeltaPhi; + return [ + atan2(y * cosDeltaGamma - k * sinDeltaGamma, x * cosDeltaPhi - z * sinDeltaPhi), + asin(k * cosDeltaGamma + y * sinDeltaGamma) + ]; + } + + rotation.invert = function(lambda, phi) { + var cosPhi = cos$1(phi), + x = cos$1(lambda) * cosPhi, + y = sin$1(lambda) * cosPhi, + z = sin$1(phi), + k = z * cosDeltaGamma - y * sinDeltaGamma; + return [ + atan2(y * cosDeltaGamma + z * sinDeltaGamma, x * cosDeltaPhi + k * sinDeltaPhi), + asin(k * cosDeltaPhi - x * sinDeltaPhi) + ]; + }; + + return rotation; + } + + function rotation(rotate) { + rotate = rotateRadians(rotate[0] * radians, rotate[1] * radians, rotate.length > 2 ? rotate[2] * radians : 0); + + function forward(coordinates) { + coordinates = rotate(coordinates[0] * radians, coordinates[1] * radians); + return coordinates[0] *= degrees$1, coordinates[1] *= degrees$1, coordinates; + } + + forward.invert = function(coordinates) { + coordinates = rotate.invert(coordinates[0] * radians, coordinates[1] * radians); + return coordinates[0] *= degrees$1, coordinates[1] *= degrees$1, coordinates; + }; + + return forward; + } + + // Generates a circle centered at [0°, 0°], with a given radius and precision. + function circleStream(stream, radius, delta, direction, t0, t1) { + if (!delta) return; + var cosRadius = cos$1(radius), + sinRadius = sin$1(radius), + step = direction * delta; + if (t0 == null) { + t0 = radius + direction * tau$3; + t1 = radius - step / 2; + } else { + t0 = circleRadius(cosRadius, t0); + t1 = circleRadius(cosRadius, t1); + if (direction > 0 ? t0 < t1 : t0 > t1) t0 += direction * tau$3; + } + for (var point, t = t0; direction > 0 ? t > t1 : t < t1; t -= step) { + point = spherical([cosRadius, -sinRadius * cos$1(t), -sinRadius * sin$1(t)]); + stream.point(point[0], point[1]); + } + } + + // Returns the signed angle of a cartesian point relative to [cosRadius, 0, 0]. + function circleRadius(cosRadius, point) { + point = cartesian(point), point[0] -= cosRadius; + cartesianNormalizeInPlace(point); + var radius = acos(-point[1]); + return ((-point[2] < 0 ? -radius : radius) + tau$3 - epsilon$2) % tau$3; + } + + function circle() { + var center = constant$8([0, 0]), + radius = constant$8(90), + precision = constant$8(6), + ring, + rotate, + stream = {point: point}; + + function point(x, y) { + ring.push(x = rotate(x, y)); + x[0] *= degrees$1, x[1] *= degrees$1; + } + + function circle() { + var c = center.apply(this, arguments), + r = radius.apply(this, arguments) * radians, + p = precision.apply(this, arguments) * radians; + ring = []; + rotate = rotateRadians(-c[0] * radians, -c[1] * radians, 0).invert; + circleStream(stream, r, p, 1); + c = {type: "Polygon", coordinates: [ring]}; + ring = rotate = null; + return c; + } + + circle.center = function(_) { + return arguments.length ? (center = typeof _ === "function" ? _ : constant$8([+_[0], +_[1]]), circle) : center; + }; + + circle.radius = function(_) { + return arguments.length ? (radius = typeof _ === "function" ? _ : constant$8(+_), circle) : radius; + }; + + circle.precision = function(_) { + return arguments.length ? (precision = typeof _ === "function" ? _ : constant$8(+_), circle) : precision; + }; + + return circle; + } + + function clipBuffer() { + var lines = [], + line; + return { + point: function(x, y, m) { + line.push([x, y, m]); + }, + lineStart: function() { + lines.push(line = []); + }, + lineEnd: noop$2, + rejoin: function() { + if (lines.length > 1) lines.push(lines.pop().concat(lines.shift())); + }, + result: function() { + var result = lines; + lines = []; + line = null; + return result; + } + }; + } + + function pointEqual(a, b) { + return abs(a[0] - b[0]) < epsilon$2 && abs(a[1] - b[1]) < epsilon$2; + } + + function Intersection(point, points, other, entry) { + this.x = point; + this.z = points; + this.o = other; // another intersection + this.e = entry; // is an entry? + this.v = false; // visited + this.n = this.p = null; // next & previous + } + + // A generalized polygon clipping algorithm: given a polygon that has been cut + // into its visible line segments, and rejoins the segments by interpolating + // along the clip edge. + function clipRejoin(segments, compareIntersection, startInside, interpolate, stream) { + var subject = [], + clip = [], + i, + n; + + segments.forEach(function(segment) { + if ((n = segment.length - 1) <= 0) return; + var n, p0 = segment[0], p1 = segment[n], x; + + if (pointEqual(p0, p1)) { + if (!p0[2] && !p1[2]) { + stream.lineStart(); + for (i = 0; i < n; ++i) stream.point((p0 = segment[i])[0], p0[1]); + stream.lineEnd(); + return; + } + // handle degenerate cases by moving the point + p1[0] += 2 * epsilon$2; + } + + subject.push(x = new Intersection(p0, segment, null, true)); + clip.push(x.o = new Intersection(p0, null, x, false)); + subject.push(x = new Intersection(p1, segment, null, false)); + clip.push(x.o = new Intersection(p1, null, x, true)); + }); + + if (!subject.length) return; + + clip.sort(compareIntersection); + link$1(subject); + link$1(clip); + + for (i = 0, n = clip.length; i < n; ++i) { + clip[i].e = startInside = !startInside; + } + + var start = subject[0], + points, + point; + + while (1) { + // Find first unvisited intersection. + var current = start, + isSubject = true; + while (current.v) if ((current = current.n) === start) return; + points = current.z; + stream.lineStart(); + do { + current.v = current.o.v = true; + if (current.e) { + if (isSubject) { + for (i = 0, n = points.length; i < n; ++i) stream.point((point = points[i])[0], point[1]); + } else { + interpolate(current.x, current.n.x, 1, stream); + } + current = current.n; + } else { + if (isSubject) { + points = current.p.z; + for (i = points.length - 1; i >= 0; --i) stream.point((point = points[i])[0], point[1]); + } else { + interpolate(current.x, current.p.x, -1, stream); + } + current = current.p; + } + current = current.o; + points = current.z; + isSubject = !isSubject; + } while (!current.v); + stream.lineEnd(); + } + } + + function link$1(array) { + if (!(n = array.length)) return; + var n, + i = 0, + a = array[0], + b; + while (++i < n) { + a.n = b = array[i]; + b.p = a; + a = b; + } + a.n = b = array[0]; + b.p = a; + } + + var sum$1 = adder(); + + function longitude(point) { + if (abs(point[0]) <= pi$3) + return point[0]; + else + return sign(point[0]) * ((abs(point[0]) + pi$3) % tau$3 - pi$3); + } + + function polygonContains(polygon, point) { + var lambda = longitude(point), + phi = point[1], + sinPhi = sin$1(phi), + normal = [sin$1(lambda), -cos$1(lambda), 0], + angle = 0, + winding = 0; + + sum$1.reset(); + + if (sinPhi === 1) phi = halfPi$2 + epsilon$2; + else if (sinPhi === -1) phi = -halfPi$2 - epsilon$2; + + for (var i = 0, n = polygon.length; i < n; ++i) { + if (!(m = (ring = polygon[i]).length)) continue; + var ring, + m, + point0 = ring[m - 1], + lambda0 = longitude(point0), + phi0 = point0[1] / 2 + quarterPi, + sinPhi0 = sin$1(phi0), + cosPhi0 = cos$1(phi0); + + for (var j = 0; j < m; ++j, lambda0 = lambda1, sinPhi0 = sinPhi1, cosPhi0 = cosPhi1, point0 = point1) { + var point1 = ring[j], + lambda1 = longitude(point1), + phi1 = point1[1] / 2 + quarterPi, + sinPhi1 = sin$1(phi1), + cosPhi1 = cos$1(phi1), + delta = lambda1 - lambda0, + sign = delta >= 0 ? 1 : -1, + absDelta = sign * delta, + antimeridian = absDelta > pi$3, + k = sinPhi0 * sinPhi1; + + sum$1.add(atan2(k * sign * sin$1(absDelta), cosPhi0 * cosPhi1 + k * cos$1(absDelta))); + angle += antimeridian ? delta + sign * tau$3 : delta; + + // Are the longitudes either side of the point’s meridian (lambda), + // and are the latitudes smaller than the parallel (phi)? + if (antimeridian ^ lambda0 >= lambda ^ lambda1 >= lambda) { + var arc = cartesianCross(cartesian(point0), cartesian(point1)); + cartesianNormalizeInPlace(arc); + var intersection = cartesianCross(normal, arc); + cartesianNormalizeInPlace(intersection); + var phiArc = (antimeridian ^ delta >= 0 ? -1 : 1) * asin(intersection[2]); + if (phi > phiArc || phi === phiArc && (arc[0] || arc[1])) { + winding += antimeridian ^ delta >= 0 ? 1 : -1; + } + } + } + } + + // First, determine whether the South pole is inside or outside: + // + // It is inside if: + // * the polygon winds around it in a clockwise direction. + // * the polygon does not (cumulatively) wind around it, but has a negative + // (counter-clockwise) area. + // + // Second, count the (signed) number of times a segment crosses a lambda + // from the point to the South pole. If it is zero, then the point is the + // same side as the South pole. + + return (angle < -epsilon$2 || angle < epsilon$2 && sum$1 < -epsilon$2) ^ (winding & 1); + } + + function clip(pointVisible, clipLine, interpolate, start) { + return function(sink) { + var line = clipLine(sink), + ringBuffer = clipBuffer(), + ringSink = clipLine(ringBuffer), + polygonStarted = false, + polygon, + segments, + ring; + + var clip = { + point: point, + lineStart: lineStart, + lineEnd: lineEnd, + polygonStart: function() { + clip.point = pointRing; + clip.lineStart = ringStart; + clip.lineEnd = ringEnd; + segments = []; + polygon = []; + }, + polygonEnd: function() { + clip.point = point; + clip.lineStart = lineStart; + clip.lineEnd = lineEnd; + segments = merge(segments); + var startInside = polygonContains(polygon, start); + if (segments.length) { + if (!polygonStarted) sink.polygonStart(), polygonStarted = true; + clipRejoin(segments, compareIntersection, startInside, interpolate, sink); + } else if (startInside) { + if (!polygonStarted) sink.polygonStart(), polygonStarted = true; + sink.lineStart(); + interpolate(null, null, 1, sink); + sink.lineEnd(); + } + if (polygonStarted) sink.polygonEnd(), polygonStarted = false; + segments = polygon = null; + }, + sphere: function() { + sink.polygonStart(); + sink.lineStart(); + interpolate(null, null, 1, sink); + sink.lineEnd(); + sink.polygonEnd(); + } + }; + + function point(lambda, phi) { + if (pointVisible(lambda, phi)) sink.point(lambda, phi); + } + + function pointLine(lambda, phi) { + line.point(lambda, phi); + } + + function lineStart() { + clip.point = pointLine; + line.lineStart(); + } + + function lineEnd() { + clip.point = point; + line.lineEnd(); + } + + function pointRing(lambda, phi) { + ring.push([lambda, phi]); + ringSink.point(lambda, phi); + } + + function ringStart() { + ringSink.lineStart(); + ring = []; + } + + function ringEnd() { + pointRing(ring[0][0], ring[0][1]); + ringSink.lineEnd(); + + var clean = ringSink.clean(), + ringSegments = ringBuffer.result(), + i, n = ringSegments.length, m, + segment, + point; + + ring.pop(); + polygon.push(ring); + ring = null; + + if (!n) return; + + // No intersections. + if (clean & 1) { + segment = ringSegments[0]; + if ((m = segment.length - 1) > 0) { + if (!polygonStarted) sink.polygonStart(), polygonStarted = true; + sink.lineStart(); + for (i = 0; i < m; ++i) sink.point((point = segment[i])[0], point[1]); + sink.lineEnd(); + } + return; + } + + // Rejoin connected segments. + // TODO reuse ringBuffer.rejoin()? + if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift())); + + segments.push(ringSegments.filter(validSegment)); + } + + return clip; + }; + } + + function validSegment(segment) { + return segment.length > 1; + } + + // Intersections are sorted along the clip edge. For both antimeridian cutting + // and circle clipping, the same comparison is used. + function compareIntersection(a, b) { + return ((a = a.x)[0] < 0 ? a[1] - halfPi$2 - epsilon$2 : halfPi$2 - a[1]) + - ((b = b.x)[0] < 0 ? b[1] - halfPi$2 - epsilon$2 : halfPi$2 - b[1]); + } + + var clipAntimeridian = clip( + function() { return true; }, + clipAntimeridianLine, + clipAntimeridianInterpolate, + [-pi$3, -halfPi$2] + ); + + // Takes a line and cuts into visible segments. Return values: 0 - there were + // intersections or the line was empty; 1 - no intersections; 2 - there were + // intersections, and the first and last segments should be rejoined. + function clipAntimeridianLine(stream) { + var lambda0 = NaN, + phi0 = NaN, + sign0 = NaN, + clean; // no intersections + + return { + lineStart: function() { + stream.lineStart(); + clean = 1; + }, + point: function(lambda1, phi1) { + var sign1 = lambda1 > 0 ? pi$3 : -pi$3, + delta = abs(lambda1 - lambda0); + if (abs(delta - pi$3) < epsilon$2) { // line crosses a pole + stream.point(lambda0, phi0 = (phi0 + phi1) / 2 > 0 ? halfPi$2 : -halfPi$2); + stream.point(sign0, phi0); + stream.lineEnd(); + stream.lineStart(); + stream.point(sign1, phi0); + stream.point(lambda1, phi0); + clean = 0; + } else if (sign0 !== sign1 && delta >= pi$3) { // line crosses antimeridian + if (abs(lambda0 - sign0) < epsilon$2) lambda0 -= sign0 * epsilon$2; // handle degeneracies + if (abs(lambda1 - sign1) < epsilon$2) lambda1 -= sign1 * epsilon$2; + phi0 = clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1); + stream.point(sign0, phi0); + stream.lineEnd(); + stream.lineStart(); + stream.point(sign1, phi0); + clean = 0; + } + stream.point(lambda0 = lambda1, phi0 = phi1); + sign0 = sign1; + }, + lineEnd: function() { + stream.lineEnd(); + lambda0 = phi0 = NaN; + }, + clean: function() { + return 2 - clean; // if intersections, rejoin first and last segments + } + }; + } + + function clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1) { + var cosPhi0, + cosPhi1, + sinLambda0Lambda1 = sin$1(lambda0 - lambda1); + return abs(sinLambda0Lambda1) > epsilon$2 + ? atan((sin$1(phi0) * (cosPhi1 = cos$1(phi1)) * sin$1(lambda1) + - sin$1(phi1) * (cosPhi0 = cos$1(phi0)) * sin$1(lambda0)) + / (cosPhi0 * cosPhi1 * sinLambda0Lambda1)) + : (phi0 + phi1) / 2; + } + + function clipAntimeridianInterpolate(from, to, direction, stream) { + var phi; + if (from == null) { + phi = direction * halfPi$2; + stream.point(-pi$3, phi); + stream.point(0, phi); + stream.point(pi$3, phi); + stream.point(pi$3, 0); + stream.point(pi$3, -phi); + stream.point(0, -phi); + stream.point(-pi$3, -phi); + stream.point(-pi$3, 0); + stream.point(-pi$3, phi); + } else if (abs(from[0] - to[0]) > epsilon$2) { + var lambda = from[0] < to[0] ? pi$3 : -pi$3; + phi = direction * lambda / 2; + stream.point(-lambda, phi); + stream.point(0, phi); + stream.point(lambda, phi); + } else { + stream.point(to[0], to[1]); + } + } + + function clipCircle(radius) { + var cr = cos$1(radius), + delta = 6 * radians, + smallRadius = cr > 0, + notHemisphere = abs(cr) > epsilon$2; // TODO optimise for this common case + + function interpolate(from, to, direction, stream) { + circleStream(stream, radius, delta, direction, from, to); + } + + function visible(lambda, phi) { + return cos$1(lambda) * cos$1(phi) > cr; + } + + // Takes a line and cuts into visible segments. Return values used for polygon + // clipping: 0 - there were intersections or the line was empty; 1 - no + // intersections 2 - there were intersections, and the first and last segments + // should be rejoined. + function clipLine(stream) { + var point0, // previous point + c0, // code for previous point + v0, // visibility of previous point + v00, // visibility of first point + clean; // no intersections + return { + lineStart: function() { + v00 = v0 = false; + clean = 1; + }, + point: function(lambda, phi) { + var point1 = [lambda, phi], + point2, + v = visible(lambda, phi), + c = smallRadius + ? v ? 0 : code(lambda, phi) + : v ? code(lambda + (lambda < 0 ? pi$3 : -pi$3), phi) : 0; + if (!point0 && (v00 = v0 = v)) stream.lineStart(); + if (v !== v0) { + point2 = intersect(point0, point1); + if (!point2 || pointEqual(point0, point2) || pointEqual(point1, point2)) + point1[2] = 1; + } + if (v !== v0) { + clean = 0; + if (v) { + // outside going in + stream.lineStart(); + point2 = intersect(point1, point0); + stream.point(point2[0], point2[1]); + } else { + // inside going out + point2 = intersect(point0, point1); + stream.point(point2[0], point2[1], 2); + stream.lineEnd(); + } + point0 = point2; + } else if (notHemisphere && point0 && smallRadius ^ v) { + var t; + // If the codes for two points are different, or are both zero, + // and there this segment intersects with the small circle. + if (!(c & c0) && (t = intersect(point1, point0, true))) { + clean = 0; + if (smallRadius) { + stream.lineStart(); + stream.point(t[0][0], t[0][1]); + stream.point(t[1][0], t[1][1]); + stream.lineEnd(); + } else { + stream.point(t[1][0], t[1][1]); + stream.lineEnd(); + stream.lineStart(); + stream.point(t[0][0], t[0][1], 3); + } + } + } + if (v && (!point0 || !pointEqual(point0, point1))) { + stream.point(point1[0], point1[1]); + } + point0 = point1, v0 = v, c0 = c; + }, + lineEnd: function() { + if (v0) stream.lineEnd(); + point0 = null; + }, + // Rejoin first and last segments if there were intersections and the first + // and last points were visible. + clean: function() { + return clean | ((v00 && v0) << 1); + } + }; + } + + // Intersects the great circle between a and b with the clip circle. + function intersect(a, b, two) { + var pa = cartesian(a), + pb = cartesian(b); + + // We have two planes, n1.p = d1 and n2.p = d2. + // Find intersection line p(t) = c1 n1 + c2 n2 + t (n1 ⨯ n2). + var n1 = [1, 0, 0], // normal + n2 = cartesianCross(pa, pb), + n2n2 = cartesianDot(n2, n2), + n1n2 = n2[0], // cartesianDot(n1, n2), + determinant = n2n2 - n1n2 * n1n2; + + // Two polar points. + if (!determinant) return !two && a; + + var c1 = cr * n2n2 / determinant, + c2 = -cr * n1n2 / determinant, + n1xn2 = cartesianCross(n1, n2), + A = cartesianScale(n1, c1), + B = cartesianScale(n2, c2); + cartesianAddInPlace(A, B); + + // Solve |p(t)|^2 = 1. + var u = n1xn2, + w = cartesianDot(A, u), + uu = cartesianDot(u, u), + t2 = w * w - uu * (cartesianDot(A, A) - 1); + + if (t2 < 0) return; + + var t = sqrt(t2), + q = cartesianScale(u, (-w - t) / uu); + cartesianAddInPlace(q, A); + q = spherical(q); + + if (!two) return q; + + // Two intersection points. + var lambda0 = a[0], + lambda1 = b[0], + phi0 = a[1], + phi1 = b[1], + z; + + if (lambda1 < lambda0) z = lambda0, lambda0 = lambda1, lambda1 = z; + + var delta = lambda1 - lambda0, + polar = abs(delta - pi$3) < epsilon$2, + meridian = polar || delta < epsilon$2; + + if (!polar && phi1 < phi0) z = phi0, phi0 = phi1, phi1 = z; + + // Check that the first point is between a and b. + if (meridian + ? polar + ? phi0 + phi1 > 0 ^ q[1] < (abs(q[0] - lambda0) < epsilon$2 ? phi0 : phi1) + : phi0 <= q[1] && q[1] <= phi1 + : delta > pi$3 ^ (lambda0 <= q[0] && q[0] <= lambda1)) { + var q1 = cartesianScale(u, (-w + t) / uu); + cartesianAddInPlace(q1, A); + return [q, spherical(q1)]; + } + } + + // Generates a 4-bit vector representing the location of a point relative to + // the small circle's bounding box. + function code(lambda, phi) { + var r = smallRadius ? radius : pi$3 - radius, + code = 0; + if (lambda < -r) code |= 1; // left + else if (lambda > r) code |= 2; // right + if (phi < -r) code |= 4; // below + else if (phi > r) code |= 8; // above + return code; + } + + return clip(visible, clipLine, interpolate, smallRadius ? [0, -radius] : [-pi$3, radius - pi$3]); + } + + function clipLine(a, b, x0, y0, x1, y1) { + var ax = a[0], + ay = a[1], + bx = b[0], + by = b[1], + t0 = 0, + t1 = 1, + dx = bx - ax, + dy = by - ay, + r; + + r = x0 - ax; + if (!dx && r > 0) return; + r /= dx; + if (dx < 0) { + if (r < t0) return; + if (r < t1) t1 = r; + } else if (dx > 0) { + if (r > t1) return; + if (r > t0) t0 = r; + } + + r = x1 - ax; + if (!dx && r < 0) return; + r /= dx; + if (dx < 0) { + if (r > t1) return; + if (r > t0) t0 = r; + } else if (dx > 0) { + if (r < t0) return; + if (r < t1) t1 = r; + } + + r = y0 - ay; + if (!dy && r > 0) return; + r /= dy; + if (dy < 0) { + if (r < t0) return; + if (r < t1) t1 = r; + } else if (dy > 0) { + if (r > t1) return; + if (r > t0) t0 = r; + } + + r = y1 - ay; + if (!dy && r < 0) return; + r /= dy; + if (dy < 0) { + if (r > t1) return; + if (r > t0) t0 = r; + } else if (dy > 0) { + if (r < t0) return; + if (r < t1) t1 = r; + } + + if (t0 > 0) a[0] = ax + t0 * dx, a[1] = ay + t0 * dy; + if (t1 < 1) b[0] = ax + t1 * dx, b[1] = ay + t1 * dy; + return true; + } + + var clipMax = 1e9, clipMin = -clipMax; + + // TODO Use d3-polygon’s polygonContains here for the ring check? + // TODO Eliminate duplicate buffering in clipBuffer and polygon.push? + + function clipRectangle(x0, y0, x1, y1) { + + function visible(x, y) { + return x0 <= x && x <= x1 && y0 <= y && y <= y1; + } + + function interpolate(from, to, direction, stream) { + var a = 0, a1 = 0; + if (from == null + || (a = corner(from, direction)) !== (a1 = corner(to, direction)) + || comparePoint(from, to) < 0 ^ direction > 0) { + do stream.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0); + while ((a = (a + direction + 4) % 4) !== a1); + } else { + stream.point(to[0], to[1]); + } + } + + function corner(p, direction) { + return abs(p[0] - x0) < epsilon$2 ? direction > 0 ? 0 : 3 + : abs(p[0] - x1) < epsilon$2 ? direction > 0 ? 2 : 1 + : abs(p[1] - y0) < epsilon$2 ? direction > 0 ? 1 : 0 + : direction > 0 ? 3 : 2; // abs(p[1] - y1) < epsilon + } + + function compareIntersection(a, b) { + return comparePoint(a.x, b.x); + } + + function comparePoint(a, b) { + var ca = corner(a, 1), + cb = corner(b, 1); + return ca !== cb ? ca - cb + : ca === 0 ? b[1] - a[1] + : ca === 1 ? a[0] - b[0] + : ca === 2 ? a[1] - b[1] + : b[0] - a[0]; + } + + return function(stream) { + var activeStream = stream, + bufferStream = clipBuffer(), + segments, + polygon, + ring, + x__, y__, v__, // first point + x_, y_, v_, // previous point + first, + clean; + + var clipStream = { + point: point, + lineStart: lineStart, + lineEnd: lineEnd, + polygonStart: polygonStart, + polygonEnd: polygonEnd + }; + + function point(x, y) { + if (visible(x, y)) activeStream.point(x, y); + } + + function polygonInside() { + var winding = 0; + + for (var i = 0, n = polygon.length; i < n; ++i) { + for (var ring = polygon[i], j = 1, m = ring.length, point = ring[0], a0, a1, b0 = point[0], b1 = point[1]; j < m; ++j) { + a0 = b0, a1 = b1, point = ring[j], b0 = point[0], b1 = point[1]; + if (a1 <= y1) { if (b1 > y1 && (b0 - a0) * (y1 - a1) > (b1 - a1) * (x0 - a0)) ++winding; } + else { if (b1 <= y1 && (b0 - a0) * (y1 - a1) < (b1 - a1) * (x0 - a0)) --winding; } + } + } + + return winding; + } + + // Buffer geometry within a polygon and then clip it en masse. + function polygonStart() { + activeStream = bufferStream, segments = [], polygon = [], clean = true; + } + + function polygonEnd() { + var startInside = polygonInside(), + cleanInside = clean && startInside, + visible = (segments = merge(segments)).length; + if (cleanInside || visible) { + stream.polygonStart(); + if (cleanInside) { + stream.lineStart(); + interpolate(null, null, 1, stream); + stream.lineEnd(); + } + if (visible) { + clipRejoin(segments, compareIntersection, startInside, interpolate, stream); + } + stream.polygonEnd(); + } + activeStream = stream, segments = polygon = ring = null; + } + + function lineStart() { + clipStream.point = linePoint; + if (polygon) polygon.push(ring = []); + first = true; + v_ = false; + x_ = y_ = NaN; + } + + // TODO rather than special-case polygons, simply handle them separately. + // Ideally, coincident intersection points should be jittered to avoid + // clipping issues. + function lineEnd() { + if (segments) { + linePoint(x__, y__); + if (v__ && v_) bufferStream.rejoin(); + segments.push(bufferStream.result()); + } + clipStream.point = point; + if (v_) activeStream.lineEnd(); + } + + function linePoint(x, y) { + var v = visible(x, y); + if (polygon) ring.push([x, y]); + if (first) { + x__ = x, y__ = y, v__ = v; + first = false; + if (v) { + activeStream.lineStart(); + activeStream.point(x, y); + } + } else { + if (v && v_) activeStream.point(x, y); + else { + var a = [x_ = Math.max(clipMin, Math.min(clipMax, x_)), y_ = Math.max(clipMin, Math.min(clipMax, y_))], + b = [x = Math.max(clipMin, Math.min(clipMax, x)), y = Math.max(clipMin, Math.min(clipMax, y))]; + if (clipLine(a, b, x0, y0, x1, y1)) { + if (!v_) { + activeStream.lineStart(); + activeStream.point(a[0], a[1]); + } + activeStream.point(b[0], b[1]); + if (!v) activeStream.lineEnd(); + clean = false; + } else if (v) { + activeStream.lineStart(); + activeStream.point(x, y); + clean = false; + } + } + } + x_ = x, y_ = y, v_ = v; + } + + return clipStream; + }; + } + + function extent$1() { + var x0 = 0, + y0 = 0, + x1 = 960, + y1 = 500, + cache, + cacheStream, + clip; + + return clip = { + stream: function(stream) { + return cache && cacheStream === stream ? cache : cache = clipRectangle(x0, y0, x1, y1)(cacheStream = stream); + }, + extent: function(_) { + return arguments.length ? (x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1], cache = cacheStream = null, clip) : [[x0, y0], [x1, y1]]; + } + }; + } + + var lengthSum = adder(), + lambda0$2, + sinPhi0$1, + cosPhi0$1; + + var lengthStream = { + sphere: noop$2, + point: noop$2, + lineStart: lengthLineStart, + lineEnd: noop$2, + polygonStart: noop$2, + polygonEnd: noop$2 + }; + + function lengthLineStart() { + lengthStream.point = lengthPointFirst; + lengthStream.lineEnd = lengthLineEnd; + } + + function lengthLineEnd() { + lengthStream.point = lengthStream.lineEnd = noop$2; + } + + function lengthPointFirst(lambda, phi) { + lambda *= radians, phi *= radians; + lambda0$2 = lambda, sinPhi0$1 = sin$1(phi), cosPhi0$1 = cos$1(phi); + lengthStream.point = lengthPoint; + } + + function lengthPoint(lambda, phi) { + lambda *= radians, phi *= radians; + var sinPhi = sin$1(phi), + cosPhi = cos$1(phi), + delta = abs(lambda - lambda0$2), + cosDelta = cos$1(delta), + sinDelta = sin$1(delta), + x = cosPhi * sinDelta, + y = cosPhi0$1 * sinPhi - sinPhi0$1 * cosPhi * cosDelta, + z = sinPhi0$1 * sinPhi + cosPhi0$1 * cosPhi * cosDelta; + lengthSum.add(atan2(sqrt(x * x + y * y), z)); + lambda0$2 = lambda, sinPhi0$1 = sinPhi, cosPhi0$1 = cosPhi; + } + + function length$1(object) { + lengthSum.reset(); + geoStream(object, lengthStream); + return +lengthSum; + } + + var coordinates = [null, null], + object$1 = {type: "LineString", coordinates: coordinates}; + + function distance(a, b) { + coordinates[0] = a; + coordinates[1] = b; + return length$1(object$1); + } + + var containsObjectType = { + Feature: function(object, point) { + return containsGeometry(object.geometry, point); + }, + FeatureCollection: function(object, point) { + var features = object.features, i = -1, n = features.length; + while (++i < n) if (containsGeometry(features[i].geometry, point)) return true; + return false; + } + }; + + var containsGeometryType = { + Sphere: function() { + return true; + }, + Point: function(object, point) { + return containsPoint(object.coordinates, point); + }, + MultiPoint: function(object, point) { + var coordinates = object.coordinates, i = -1, n = coordinates.length; + while (++i < n) if (containsPoint(coordinates[i], point)) return true; + return false; + }, + LineString: function(object, point) { + return containsLine(object.coordinates, point); + }, + MultiLineString: function(object, point) { + var coordinates = object.coordinates, i = -1, n = coordinates.length; + while (++i < n) if (containsLine(coordinates[i], point)) return true; + return false; + }, + Polygon: function(object, point) { + return containsPolygon(object.coordinates, point); + }, + MultiPolygon: function(object, point) { + var coordinates = object.coordinates, i = -1, n = coordinates.length; + while (++i < n) if (containsPolygon(coordinates[i], point)) return true; + return false; + }, + GeometryCollection: function(object, point) { + var geometries = object.geometries, i = -1, n = geometries.length; + while (++i < n) if (containsGeometry(geometries[i], point)) return true; + return false; + } + }; + + function containsGeometry(geometry, point) { + return geometry && containsGeometryType.hasOwnProperty(geometry.type) + ? containsGeometryType[geometry.type](geometry, point) + : false; + } + + function containsPoint(coordinates, point) { + return distance(coordinates, point) === 0; + } + + function containsLine(coordinates, point) { + var ao, bo, ab; + for (var i = 0, n = coordinates.length; i < n; i++) { + bo = distance(coordinates[i], point); + if (bo === 0) return true; + if (i > 0) { + ab = distance(coordinates[i], coordinates[i - 1]); + if ( + ab > 0 && + ao <= ab && + bo <= ab && + (ao + bo - ab) * (1 - Math.pow((ao - bo) / ab, 2)) < epsilon2$1 * ab + ) + return true; + } + ao = bo; + } + return false; + } + + function containsPolygon(coordinates, point) { + return !!polygonContains(coordinates.map(ringRadians), pointRadians(point)); + } + + function ringRadians(ring) { + return ring = ring.map(pointRadians), ring.pop(), ring; + } + + function pointRadians(point) { + return [point[0] * radians, point[1] * radians]; + } + + function contains$1(object, point) { + return (object && containsObjectType.hasOwnProperty(object.type) + ? containsObjectType[object.type] + : containsGeometry)(object, point); + } + + function graticuleX(y0, y1, dy) { + var y = sequence(y0, y1 - epsilon$2, dy).concat(y1); + return function(x) { return y.map(function(y) { return [x, y]; }); }; + } + + function graticuleY(x0, x1, dx) { + var x = sequence(x0, x1 - epsilon$2, dx).concat(x1); + return function(y) { return x.map(function(x) { return [x, y]; }); }; + } + + function graticule() { + var x1, x0, X1, X0, + y1, y0, Y1, Y0, + dx = 10, dy = dx, DX = 90, DY = 360, + x, y, X, Y, + precision = 2.5; + + function graticule() { + return {type: "MultiLineString", coordinates: lines()}; + } + + function lines() { + return sequence(ceil(X0 / DX) * DX, X1, DX).map(X) + .concat(sequence(ceil(Y0 / DY) * DY, Y1, DY).map(Y)) + .concat(sequence(ceil(x0 / dx) * dx, x1, dx).filter(function(x) { return abs(x % DX) > epsilon$2; }).map(x)) + .concat(sequence(ceil(y0 / dy) * dy, y1, dy).filter(function(y) { return abs(y % DY) > epsilon$2; }).map(y)); + } + + graticule.lines = function() { + return lines().map(function(coordinates) { return {type: "LineString", coordinates: coordinates}; }); + }; + + graticule.outline = function() { + return { + type: "Polygon", + coordinates: [ + X(X0).concat( + Y(Y1).slice(1), + X(X1).reverse().slice(1), + Y(Y0).reverse().slice(1)) + ] + }; + }; + + graticule.extent = function(_) { + if (!arguments.length) return graticule.extentMinor(); + return graticule.extentMajor(_).extentMinor(_); + }; + + graticule.extentMajor = function(_) { + if (!arguments.length) return [[X0, Y0], [X1, Y1]]; + X0 = +_[0][0], X1 = +_[1][0]; + Y0 = +_[0][1], Y1 = +_[1][1]; + if (X0 > X1) _ = X0, X0 = X1, X1 = _; + if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _; + return graticule.precision(precision); + }; + + graticule.extentMinor = function(_) { + if (!arguments.length) return [[x0, y0], [x1, y1]]; + x0 = +_[0][0], x1 = +_[1][0]; + y0 = +_[0][1], y1 = +_[1][1]; + if (x0 > x1) _ = x0, x0 = x1, x1 = _; + if (y0 > y1) _ = y0, y0 = y1, y1 = _; + return graticule.precision(precision); + }; + + graticule.step = function(_) { + if (!arguments.length) return graticule.stepMinor(); + return graticule.stepMajor(_).stepMinor(_); + }; + + graticule.stepMajor = function(_) { + if (!arguments.length) return [DX, DY]; + DX = +_[0], DY = +_[1]; + return graticule; + }; + + graticule.stepMinor = function(_) { + if (!arguments.length) return [dx, dy]; + dx = +_[0], dy = +_[1]; + return graticule; + }; + + graticule.precision = function(_) { + if (!arguments.length) return precision; + precision = +_; + x = graticuleX(y0, y1, 90); + y = graticuleY(x0, x1, precision); + X = graticuleX(Y0, Y1, 90); + Y = graticuleY(X0, X1, precision); + return graticule; + }; + + return graticule + .extentMajor([[-180, -90 + epsilon$2], [180, 90 - epsilon$2]]) + .extentMinor([[-180, -80 - epsilon$2], [180, 80 + epsilon$2]]); + } + + function graticule10() { + return graticule()(); + } + + function interpolate$1(a, b) { + var x0 = a[0] * radians, + y0 = a[1] * radians, + x1 = b[0] * radians, + y1 = b[1] * radians, + cy0 = cos$1(y0), + sy0 = sin$1(y0), + cy1 = cos$1(y1), + sy1 = sin$1(y1), + kx0 = cy0 * cos$1(x0), + ky0 = cy0 * sin$1(x0), + kx1 = cy1 * cos$1(x1), + ky1 = cy1 * sin$1(x1), + d = 2 * asin(sqrt(haversin(y1 - y0) + cy0 * cy1 * haversin(x1 - x0))), + k = sin$1(d); + + var interpolate = d ? function(t) { + var B = sin$1(t *= d) / k, + A = sin$1(d - t) / k, + x = A * kx0 + B * kx1, + y = A * ky0 + B * ky1, + z = A * sy0 + B * sy1; + return [ + atan2(y, x) * degrees$1, + atan2(z, sqrt(x * x + y * y)) * degrees$1 + ]; + } : function() { + return [x0 * degrees$1, y0 * degrees$1]; + }; + + interpolate.distance = d; + + return interpolate; + } + + function identity$4(x) { + return x; + } + + var areaSum$1 = adder(), + areaRingSum$1 = adder(), + x00, + y00, + x0$1, + y0$1; + + var areaStream$1 = { + point: noop$2, + lineStart: noop$2, + lineEnd: noop$2, + polygonStart: function() { + areaStream$1.lineStart = areaRingStart$1; + areaStream$1.lineEnd = areaRingEnd$1; + }, + polygonEnd: function() { + areaStream$1.lineStart = areaStream$1.lineEnd = areaStream$1.point = noop$2; + areaSum$1.add(abs(areaRingSum$1)); + areaRingSum$1.reset(); + }, + result: function() { + var area = areaSum$1 / 2; + areaSum$1.reset(); + return area; + } + }; + + function areaRingStart$1() { + areaStream$1.point = areaPointFirst$1; + } + + function areaPointFirst$1(x, y) { + areaStream$1.point = areaPoint$1; + x00 = x0$1 = x, y00 = y0$1 = y; + } + + function areaPoint$1(x, y) { + areaRingSum$1.add(y0$1 * x - x0$1 * y); + x0$1 = x, y0$1 = y; + } + + function areaRingEnd$1() { + areaPoint$1(x00, y00); + } + + var x0$2 = Infinity, + y0$2 = x0$2, + x1 = -x0$2, + y1 = x1; + + var boundsStream$1 = { + point: boundsPoint$1, + lineStart: noop$2, + lineEnd: noop$2, + polygonStart: noop$2, + polygonEnd: noop$2, + result: function() { + var bounds = [[x0$2, y0$2], [x1, y1]]; + x1 = y1 = -(y0$2 = x0$2 = Infinity); + return bounds; + } + }; + + function boundsPoint$1(x, y) { + if (x < x0$2) x0$2 = x; + if (x > x1) x1 = x; + if (y < y0$2) y0$2 = y; + if (y > y1) y1 = y; + } + + // TODO Enforce positive area for exterior, negative area for interior? + + var X0$1 = 0, + Y0$1 = 0, + Z0$1 = 0, + X1$1 = 0, + Y1$1 = 0, + Z1$1 = 0, + X2$1 = 0, + Y2$1 = 0, + Z2$1 = 0, + x00$1, + y00$1, + x0$3, + y0$3; + + var centroidStream$1 = { + point: centroidPoint$1, + lineStart: centroidLineStart$1, + lineEnd: centroidLineEnd$1, + polygonStart: function() { + centroidStream$1.lineStart = centroidRingStart$1; + centroidStream$1.lineEnd = centroidRingEnd$1; + }, + polygonEnd: function() { + centroidStream$1.point = centroidPoint$1; + centroidStream$1.lineStart = centroidLineStart$1; + centroidStream$1.lineEnd = centroidLineEnd$1; + }, + result: function() { + var centroid = Z2$1 ? [X2$1 / Z2$1, Y2$1 / Z2$1] + : Z1$1 ? [X1$1 / Z1$1, Y1$1 / Z1$1] + : Z0$1 ? [X0$1 / Z0$1, Y0$1 / Z0$1] + : [NaN, NaN]; + X0$1 = Y0$1 = Z0$1 = + X1$1 = Y1$1 = Z1$1 = + X2$1 = Y2$1 = Z2$1 = 0; + return centroid; + } + }; + + function centroidPoint$1(x, y) { + X0$1 += x; + Y0$1 += y; + ++Z0$1; + } + + function centroidLineStart$1() { + centroidStream$1.point = centroidPointFirstLine; + } + + function centroidPointFirstLine(x, y) { + centroidStream$1.point = centroidPointLine; + centroidPoint$1(x0$3 = x, y0$3 = y); + } + + function centroidPointLine(x, y) { + var dx = x - x0$3, dy = y - y0$3, z = sqrt(dx * dx + dy * dy); + X1$1 += z * (x0$3 + x) / 2; + Y1$1 += z * (y0$3 + y) / 2; + Z1$1 += z; + centroidPoint$1(x0$3 = x, y0$3 = y); + } + + function centroidLineEnd$1() { + centroidStream$1.point = centroidPoint$1; + } + + function centroidRingStart$1() { + centroidStream$1.point = centroidPointFirstRing; + } + + function centroidRingEnd$1() { + centroidPointRing(x00$1, y00$1); + } + + function centroidPointFirstRing(x, y) { + centroidStream$1.point = centroidPointRing; + centroidPoint$1(x00$1 = x0$3 = x, y00$1 = y0$3 = y); + } + + function centroidPointRing(x, y) { + var dx = x - x0$3, + dy = y - y0$3, + z = sqrt(dx * dx + dy * dy); + + X1$1 += z * (x0$3 + x) / 2; + Y1$1 += z * (y0$3 + y) / 2; + Z1$1 += z; + + z = y0$3 * x - x0$3 * y; + X2$1 += z * (x0$3 + x); + Y2$1 += z * (y0$3 + y); + Z2$1 += z * 3; + centroidPoint$1(x0$3 = x, y0$3 = y); + } + + function PathContext(context) { + this._context = context; + } + + PathContext.prototype = { + _radius: 4.5, + pointRadius: function(_) { + return this._radius = _, this; + }, + polygonStart: function() { + this._line = 0; + }, + polygonEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._point = 0; + }, + lineEnd: function() { + if (this._line === 0) this._context.closePath(); + this._point = NaN; + }, + point: function(x, y) { + switch (this._point) { + case 0: { + this._context.moveTo(x, y); + this._point = 1; + break; + } + case 1: { + this._context.lineTo(x, y); + break; + } + default: { + this._context.moveTo(x + this._radius, y); + this._context.arc(x, y, this._radius, 0, tau$3); + break; + } + } + }, + result: noop$2 + }; + + var lengthSum$1 = adder(), + lengthRing, + x00$2, + y00$2, + x0$4, + y0$4; + + var lengthStream$1 = { + point: noop$2, + lineStart: function() { + lengthStream$1.point = lengthPointFirst$1; + }, + lineEnd: function() { + if (lengthRing) lengthPoint$1(x00$2, y00$2); + lengthStream$1.point = noop$2; + }, + polygonStart: function() { + lengthRing = true; + }, + polygonEnd: function() { + lengthRing = null; + }, + result: function() { + var length = +lengthSum$1; + lengthSum$1.reset(); + return length; + } + }; + + function lengthPointFirst$1(x, y) { + lengthStream$1.point = lengthPoint$1; + x00$2 = x0$4 = x, y00$2 = y0$4 = y; + } + + function lengthPoint$1(x, y) { + x0$4 -= x, y0$4 -= y; + lengthSum$1.add(sqrt(x0$4 * x0$4 + y0$4 * y0$4)); + x0$4 = x, y0$4 = y; + } + + function PathString() { + this._string = []; + } + + PathString.prototype = { + _radius: 4.5, + _circle: circle$1(4.5), + pointRadius: function(_) { + if ((_ = +_) !== this._radius) this._radius = _, this._circle = null; + return this; + }, + polygonStart: function() { + this._line = 0; + }, + polygonEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._point = 0; + }, + lineEnd: function() { + if (this._line === 0) this._string.push("Z"); + this._point = NaN; + }, + point: function(x, y) { + switch (this._point) { + case 0: { + this._string.push("M", x, ",", y); + this._point = 1; + break; + } + case 1: { + this._string.push("L", x, ",", y); + break; + } + default: { + if (this._circle == null) this._circle = circle$1(this._radius); + this._string.push("M", x, ",", y, this._circle); + break; + } + } + }, + result: function() { + if (this._string.length) { + var result = this._string.join(""); + this._string = []; + return result; + } else { + return null; + } + } + }; + + function circle$1(radius) { + return "m0," + radius + + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius + + "a" + radius + "," + radius + " 0 1,1 0," + 2 * radius + + "z"; + } + + function index$1(projection, context) { + var pointRadius = 4.5, + projectionStream, + contextStream; + + function path(object) { + if (object) { + if (typeof pointRadius === "function") contextStream.pointRadius(+pointRadius.apply(this, arguments)); + geoStream(object, projectionStream(contextStream)); + } + return contextStream.result(); + } + + path.area = function(object) { + geoStream(object, projectionStream(areaStream$1)); + return areaStream$1.result(); + }; + + path.measure = function(object) { + geoStream(object, projectionStream(lengthStream$1)); + return lengthStream$1.result(); + }; + + path.bounds = function(object) { + geoStream(object, projectionStream(boundsStream$1)); + return boundsStream$1.result(); + }; + + path.centroid = function(object) { + geoStream(object, projectionStream(centroidStream$1)); + return centroidStream$1.result(); + }; + + path.projection = function(_) { + return arguments.length ? (projectionStream = _ == null ? (projection = null, identity$4) : (projection = _).stream, path) : projection; + }; + + path.context = function(_) { + if (!arguments.length) return context; + contextStream = _ == null ? (context = null, new PathString) : new PathContext(context = _); + if (typeof pointRadius !== "function") contextStream.pointRadius(pointRadius); + return path; + }; + + path.pointRadius = function(_) { + if (!arguments.length) return pointRadius; + pointRadius = typeof _ === "function" ? _ : (contextStream.pointRadius(+_), +_); + return path; + }; + + return path.projection(projection).context(context); + } + + function transform(methods) { + return { + stream: transformer(methods) + }; + } + + function transformer(methods) { + return function(stream) { + var s = new TransformStream; + for (var key in methods) s[key] = methods[key]; + s.stream = stream; + return s; + }; + } + + function TransformStream() {} + + TransformStream.prototype = { + constructor: TransformStream, + point: function(x, y) { this.stream.point(x, y); }, + sphere: function() { this.stream.sphere(); }, + lineStart: function() { this.stream.lineStart(); }, + lineEnd: function() { this.stream.lineEnd(); }, + polygonStart: function() { this.stream.polygonStart(); }, + polygonEnd: function() { this.stream.polygonEnd(); } + }; + + function fit(projection, fitBounds, object) { + var clip = projection.clipExtent && projection.clipExtent(); + projection.scale(150).translate([0, 0]); + if (clip != null) projection.clipExtent(null); + geoStream(object, projection.stream(boundsStream$1)); + fitBounds(boundsStream$1.result()); + if (clip != null) projection.clipExtent(clip); + return projection; + } + + function fitExtent(projection, extent, object) { + return fit(projection, function(b) { + var w = extent[1][0] - extent[0][0], + h = extent[1][1] - extent[0][1], + k = Math.min(w / (b[1][0] - b[0][0]), h / (b[1][1] - b[0][1])), + x = +extent[0][0] + (w - k * (b[1][0] + b[0][0])) / 2, + y = +extent[0][1] + (h - k * (b[1][1] + b[0][1])) / 2; + projection.scale(150 * k).translate([x, y]); + }, object); + } + + function fitSize(projection, size, object) { + return fitExtent(projection, [[0, 0], size], object); + } + + function fitWidth(projection, width, object) { + return fit(projection, function(b) { + var w = +width, + k = w / (b[1][0] - b[0][0]), + x = (w - k * (b[1][0] + b[0][0])) / 2, + y = -k * b[0][1]; + projection.scale(150 * k).translate([x, y]); + }, object); + } + + function fitHeight(projection, height, object) { + return fit(projection, function(b) { + var h = +height, + k = h / (b[1][1] - b[0][1]), + x = -k * b[0][0], + y = (h - k * (b[1][1] + b[0][1])) / 2; + projection.scale(150 * k).translate([x, y]); + }, object); + } + + var maxDepth = 16, // maximum depth of subdivision + cosMinDistance = cos$1(30 * radians); // cos(minimum angular distance) + + function resample(project, delta2) { + return +delta2 ? resample$1(project, delta2) : resampleNone(project); + } + + function resampleNone(project) { + return transformer({ + point: function(x, y) { + x = project(x, y); + this.stream.point(x[0], x[1]); + } + }); + } + + function resample$1(project, delta2) { + + function resampleLineTo(x0, y0, lambda0, a0, b0, c0, x1, y1, lambda1, a1, b1, c1, depth, stream) { + var dx = x1 - x0, + dy = y1 - y0, + d2 = dx * dx + dy * dy; + if (d2 > 4 * delta2 && depth--) { + var a = a0 + a1, + b = b0 + b1, + c = c0 + c1, + m = sqrt(a * a + b * b + c * c), + phi2 = asin(c /= m), + lambda2 = abs(abs(c) - 1) < epsilon$2 || abs(lambda0 - lambda1) < epsilon$2 ? (lambda0 + lambda1) / 2 : atan2(b, a), + p = project(lambda2, phi2), + x2 = p[0], + y2 = p[1], + dx2 = x2 - x0, + dy2 = y2 - y0, + dz = dy * dx2 - dx * dy2; + if (dz * dz / d2 > delta2 // perpendicular projected distance + || abs((dx * dx2 + dy * dy2) / d2 - 0.5) > 0.3 // midpoint close to an end + || a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) { // angular distance + resampleLineTo(x0, y0, lambda0, a0, b0, c0, x2, y2, lambda2, a /= m, b /= m, c, depth, stream); + stream.point(x2, y2); + resampleLineTo(x2, y2, lambda2, a, b, c, x1, y1, lambda1, a1, b1, c1, depth, stream); + } + } + } + return function(stream) { + var lambda00, x00, y00, a00, b00, c00, // first point + lambda0, x0, y0, a0, b0, c0; // previous point + + var resampleStream = { + point: point, + lineStart: lineStart, + lineEnd: lineEnd, + polygonStart: function() { stream.polygonStart(); resampleStream.lineStart = ringStart; }, + polygonEnd: function() { stream.polygonEnd(); resampleStream.lineStart = lineStart; } + }; + + function point(x, y) { + x = project(x, y); + stream.point(x[0], x[1]); + } + + function lineStart() { + x0 = NaN; + resampleStream.point = linePoint; + stream.lineStart(); + } + + function linePoint(lambda, phi) { + var c = cartesian([lambda, phi]), p = project(lambda, phi); + resampleLineTo(x0, y0, lambda0, a0, b0, c0, x0 = p[0], y0 = p[1], lambda0 = lambda, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream); + stream.point(x0, y0); + } + + function lineEnd() { + resampleStream.point = point; + stream.lineEnd(); + } + + function ringStart() { + lineStart(); + resampleStream.point = ringPoint; + resampleStream.lineEnd = ringEnd; + } + + function ringPoint(lambda, phi) { + linePoint(lambda00 = lambda, phi), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0; + resampleStream.point = linePoint; + } + + function ringEnd() { + resampleLineTo(x0, y0, lambda0, a0, b0, c0, x00, y00, lambda00, a00, b00, c00, maxDepth, stream); + resampleStream.lineEnd = lineEnd; + lineEnd(); + } + + return resampleStream; + }; + } + + var transformRadians = transformer({ + point: function(x, y) { + this.stream.point(x * radians, y * radians); + } + }); + + function transformRotate(rotate) { + return transformer({ + point: function(x, y) { + var r = rotate(x, y); + return this.stream.point(r[0], r[1]); + } + }); + } + + function scaleTranslate(k, dx, dy, sx, sy) { + function transform(x, y) { + x *= sx; y *= sy; + return [dx + k * x, dy - k * y]; + } + transform.invert = function(x, y) { + return [(x - dx) / k * sx, (dy - y) / k * sy]; + }; + return transform; + } + + function scaleTranslateRotate(k, dx, dy, sx, sy, alpha) { + var cosAlpha = cos$1(alpha), + sinAlpha = sin$1(alpha), + a = cosAlpha * k, + b = sinAlpha * k, + ai = cosAlpha / k, + bi = sinAlpha / k, + ci = (sinAlpha * dy - cosAlpha * dx) / k, + fi = (sinAlpha * dx + cosAlpha * dy) / k; + function transform(x, y) { + x *= sx; y *= sy; + return [a * x - b * y + dx, dy - b * x - a * y]; + } + transform.invert = function(x, y) { + return [sx * (ai * x - bi * y + ci), sy * (fi - bi * x - ai * y)]; + }; + return transform; + } + + function projection(project) { + return projectionMutator(function() { return project; })(); + } + + function projectionMutator(projectAt) { + var project, + k = 150, // scale + x = 480, y = 250, // translate + lambda = 0, phi = 0, // center + deltaLambda = 0, deltaPhi = 0, deltaGamma = 0, rotate, // pre-rotate + alpha = 0, // post-rotate angle + sx = 1, // reflectX + sy = 1, // reflectX + theta = null, preclip = clipAntimeridian, // pre-clip angle + x0 = null, y0, x1, y1, postclip = identity$4, // post-clip extent + delta2 = 0.5, // precision + projectResample, + projectTransform, + projectRotateTransform, + cache, + cacheStream; + + function projection(point) { + return projectRotateTransform(point[0] * radians, point[1] * radians); + } + + function invert(point) { + point = projectRotateTransform.invert(point[0], point[1]); + return point && [point[0] * degrees$1, point[1] * degrees$1]; + } + + projection.stream = function(stream) { + return cache && cacheStream === stream ? cache : cache = transformRadians(transformRotate(rotate)(preclip(projectResample(postclip(cacheStream = stream))))); + }; + + projection.preclip = function(_) { + return arguments.length ? (preclip = _, theta = undefined, reset()) : preclip; + }; + + projection.postclip = function(_) { + return arguments.length ? (postclip = _, x0 = y0 = x1 = y1 = null, reset()) : postclip; + }; + + projection.clipAngle = function(_) { + return arguments.length ? (preclip = +_ ? clipCircle(theta = _ * radians) : (theta = null, clipAntimeridian), reset()) : theta * degrees$1; + }; + + projection.clipExtent = function(_) { + return arguments.length ? (postclip = _ == null ? (x0 = y0 = x1 = y1 = null, identity$4) : clipRectangle(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]), reset()) : x0 == null ? null : [[x0, y0], [x1, y1]]; + }; + + projection.scale = function(_) { + return arguments.length ? (k = +_, recenter()) : k; + }; + + projection.translate = function(_) { + return arguments.length ? (x = +_[0], y = +_[1], recenter()) : [x, y]; + }; + + projection.center = function(_) { + return arguments.length ? (lambda = _[0] % 360 * radians, phi = _[1] % 360 * radians, recenter()) : [lambda * degrees$1, phi * degrees$1]; + }; + + projection.rotate = function(_) { + return arguments.length ? (deltaLambda = _[0] % 360 * radians, deltaPhi = _[1] % 360 * radians, deltaGamma = _.length > 2 ? _[2] % 360 * radians : 0, recenter()) : [deltaLambda * degrees$1, deltaPhi * degrees$1, deltaGamma * degrees$1]; + }; + + projection.angle = function(_) { + return arguments.length ? (alpha = _ % 360 * radians, recenter()) : alpha * degrees$1; + }; + + projection.reflectX = function(_) { + return arguments.length ? (sx = _ ? -1 : 1, recenter()) : sx < 0; + }; + + projection.reflectY = function(_) { + return arguments.length ? (sy = _ ? -1 : 1, recenter()) : sy < 0; + }; + + projection.precision = function(_) { + return arguments.length ? (projectResample = resample(projectTransform, delta2 = _ * _), reset()) : sqrt(delta2); + }; + + projection.fitExtent = function(extent, object) { + return fitExtent(projection, extent, object); + }; + + projection.fitSize = function(size, object) { + return fitSize(projection, size, object); + }; + + projection.fitWidth = function(width, object) { + return fitWidth(projection, width, object); + }; + + projection.fitHeight = function(height, object) { + return fitHeight(projection, height, object); + }; + + function recenter() { + var center = scaleTranslateRotate(k, 0, 0, sx, sy, alpha).apply(null, project(lambda, phi)), + transform = (alpha ? scaleTranslateRotate : scaleTranslate)(k, x - center[0], y - center[1], sx, sy, alpha); + rotate = rotateRadians(deltaLambda, deltaPhi, deltaGamma); + projectTransform = compose(project, transform); + projectRotateTransform = compose(rotate, projectTransform); + projectResample = resample(projectTransform, delta2); + return reset(); + } + + function reset() { + cache = cacheStream = null; + return projection; + } + + return function() { + project = projectAt.apply(this, arguments); + projection.invert = project.invert && invert; + return recenter(); + }; + } + + function conicProjection(projectAt) { + var phi0 = 0, + phi1 = pi$3 / 3, + m = projectionMutator(projectAt), + p = m(phi0, phi1); + + p.parallels = function(_) { + return arguments.length ? m(phi0 = _[0] * radians, phi1 = _[1] * radians) : [phi0 * degrees$1, phi1 * degrees$1]; + }; + + return p; + } + + function cylindricalEqualAreaRaw(phi0) { + var cosPhi0 = cos$1(phi0); + + function forward(lambda, phi) { + return [lambda * cosPhi0, sin$1(phi) / cosPhi0]; + } + + forward.invert = function(x, y) { + return [x / cosPhi0, asin(y * cosPhi0)]; + }; + + return forward; + } + + function conicEqualAreaRaw(y0, y1) { + var sy0 = sin$1(y0), n = (sy0 + sin$1(y1)) / 2; + + // Are the parallels symmetrical around the Equator? + if (abs(n) < epsilon$2) return cylindricalEqualAreaRaw(y0); + + var c = 1 + sy0 * (2 * n - sy0), r0 = sqrt(c) / n; + + function project(x, y) { + var r = sqrt(c - 2 * n * sin$1(y)) / n; + return [r * sin$1(x *= n), r0 - r * cos$1(x)]; + } + + project.invert = function(x, y) { + var r0y = r0 - y, + l = atan2(x, abs(r0y)) * sign(r0y); + if (r0y * n < 0) + l -= pi$3 * sign(x) * sign(r0y); + return [l / n, asin((c - (x * x + r0y * r0y) * n * n) / (2 * n))]; + }; + + return project; + } + + function conicEqualArea() { + return conicProjection(conicEqualAreaRaw) + .scale(155.424) + .center([0, 33.6442]); + } + + function albers() { + return conicEqualArea() + .parallels([29.5, 45.5]) + .scale(1070) + .translate([480, 250]) + .rotate([96, 0]) + .center([-0.6, 38.7]); + } + + // The projections must have mutually exclusive clip regions on the sphere, + // as this will avoid emitting interleaving lines and polygons. + function multiplex(streams) { + var n = streams.length; + return { + point: function(x, y) { var i = -1; while (++i < n) streams[i].point(x, y); }, + sphere: function() { var i = -1; while (++i < n) streams[i].sphere(); }, + lineStart: function() { var i = -1; while (++i < n) streams[i].lineStart(); }, + lineEnd: function() { var i = -1; while (++i < n) streams[i].lineEnd(); }, + polygonStart: function() { var i = -1; while (++i < n) streams[i].polygonStart(); }, + polygonEnd: function() { var i = -1; while (++i < n) streams[i].polygonEnd(); } + }; + } + + // A composite projection for the United States, configured by default for + // 960×500. The projection also works quite well at 960×600 if you change the + // scale to 1285 and adjust the translate accordingly. The set of standard + // parallels for each region comes from USGS, which is published here: + // http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html#albers + function albersUsa() { + var cache, + cacheStream, + lower48 = albers(), lower48Point, + alaska = conicEqualArea().rotate([154, 0]).center([-2, 58.5]).parallels([55, 65]), alaskaPoint, // EPSG:3338 + hawaii = conicEqualArea().rotate([157, 0]).center([-3, 19.9]).parallels([8, 18]), hawaiiPoint, // ESRI:102007 + point, pointStream = {point: function(x, y) { point = [x, y]; }}; + + function albersUsa(coordinates) { + var x = coordinates[0], y = coordinates[1]; + return point = null, + (lower48Point.point(x, y), point) + || (alaskaPoint.point(x, y), point) + || (hawaiiPoint.point(x, y), point); + } + + albersUsa.invert = function(coordinates) { + var k = lower48.scale(), + t = lower48.translate(), + x = (coordinates[0] - t[0]) / k, + y = (coordinates[1] - t[1]) / k; + return (y >= 0.120 && y < 0.234 && x >= -0.425 && x < -0.214 ? alaska + : y >= 0.166 && y < 0.234 && x >= -0.214 && x < -0.115 ? hawaii + : lower48).invert(coordinates); + }; + + albersUsa.stream = function(stream) { + return cache && cacheStream === stream ? cache : cache = multiplex([lower48.stream(cacheStream = stream), alaska.stream(stream), hawaii.stream(stream)]); + }; + + albersUsa.precision = function(_) { + if (!arguments.length) return lower48.precision(); + lower48.precision(_), alaska.precision(_), hawaii.precision(_); + return reset(); + }; + + albersUsa.scale = function(_) { + if (!arguments.length) return lower48.scale(); + lower48.scale(_), alaska.scale(_ * 0.35), hawaii.scale(_); + return albersUsa.translate(lower48.translate()); + }; + + albersUsa.translate = function(_) { + if (!arguments.length) return lower48.translate(); + var k = lower48.scale(), x = +_[0], y = +_[1]; + + lower48Point = lower48 + .translate(_) + .clipExtent([[x - 0.455 * k, y - 0.238 * k], [x + 0.455 * k, y + 0.238 * k]]) + .stream(pointStream); + + alaskaPoint = alaska + .translate([x - 0.307 * k, y + 0.201 * k]) + .clipExtent([[x - 0.425 * k + epsilon$2, y + 0.120 * k + epsilon$2], [x - 0.214 * k - epsilon$2, y + 0.234 * k - epsilon$2]]) + .stream(pointStream); + + hawaiiPoint = hawaii + .translate([x - 0.205 * k, y + 0.212 * k]) + .clipExtent([[x - 0.214 * k + epsilon$2, y + 0.166 * k + epsilon$2], [x - 0.115 * k - epsilon$2, y + 0.234 * k - epsilon$2]]) + .stream(pointStream); + + return reset(); + }; + + albersUsa.fitExtent = function(extent, object) { + return fitExtent(albersUsa, extent, object); + }; + + albersUsa.fitSize = function(size, object) { + return fitSize(albersUsa, size, object); + }; + + albersUsa.fitWidth = function(width, object) { + return fitWidth(albersUsa, width, object); + }; + + albersUsa.fitHeight = function(height, object) { + return fitHeight(albersUsa, height, object); + }; + + function reset() { + cache = cacheStream = null; + return albersUsa; + } + + return albersUsa.scale(1070); + } + + function azimuthalRaw(scale) { + return function(x, y) { + var cx = cos$1(x), + cy = cos$1(y), + k = scale(cx * cy); + return [ + k * cy * sin$1(x), + k * sin$1(y) + ]; + } + } + + function azimuthalInvert(angle) { + return function(x, y) { + var z = sqrt(x * x + y * y), + c = angle(z), + sc = sin$1(c), + cc = cos$1(c); + return [ + atan2(x * sc, z * cc), + asin(z && y * sc / z) + ]; + } + } + + var azimuthalEqualAreaRaw = azimuthalRaw(function(cxcy) { + return sqrt(2 / (1 + cxcy)); + }); + + azimuthalEqualAreaRaw.invert = azimuthalInvert(function(z) { + return 2 * asin(z / 2); + }); + + function azimuthalEqualArea() { + return projection(azimuthalEqualAreaRaw) + .scale(124.75) + .clipAngle(180 - 1e-3); + } + + var azimuthalEquidistantRaw = azimuthalRaw(function(c) { + return (c = acos(c)) && c / sin$1(c); + }); + + azimuthalEquidistantRaw.invert = azimuthalInvert(function(z) { + return z; + }); + + function azimuthalEquidistant() { + return projection(azimuthalEquidistantRaw) + .scale(79.4188) + .clipAngle(180 - 1e-3); + } + + function mercatorRaw(lambda, phi) { + return [lambda, log(tan((halfPi$2 + phi) / 2))]; + } + + mercatorRaw.invert = function(x, y) { + return [x, 2 * atan(exp(y)) - halfPi$2]; + }; + + function mercator() { + return mercatorProjection(mercatorRaw) + .scale(961 / tau$3); + } + + function mercatorProjection(project) { + var m = projection(project), + center = m.center, + scale = m.scale, + translate = m.translate, + clipExtent = m.clipExtent, + x0 = null, y0, x1, y1; // clip extent + + m.scale = function(_) { + return arguments.length ? (scale(_), reclip()) : scale(); + }; + + m.translate = function(_) { + return arguments.length ? (translate(_), reclip()) : translate(); + }; + + m.center = function(_) { + return arguments.length ? (center(_), reclip()) : center(); + }; + + m.clipExtent = function(_) { + return arguments.length ? ((_ == null ? x0 = y0 = x1 = y1 = null : (x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1])), reclip()) : x0 == null ? null : [[x0, y0], [x1, y1]]; + }; + + function reclip() { + var k = pi$3 * scale(), + t = m(rotation(m.rotate()).invert([0, 0])); + return clipExtent(x0 == null + ? [[t[0] - k, t[1] - k], [t[0] + k, t[1] + k]] : project === mercatorRaw + ? [[Math.max(t[0] - k, x0), y0], [Math.min(t[0] + k, x1), y1]] + : [[x0, Math.max(t[1] - k, y0)], [x1, Math.min(t[1] + k, y1)]]); + } + + return reclip(); + } + + function tany(y) { + return tan((halfPi$2 + y) / 2); + } + + function conicConformalRaw(y0, y1) { + var cy0 = cos$1(y0), + n = y0 === y1 ? sin$1(y0) : log(cy0 / cos$1(y1)) / log(tany(y1) / tany(y0)), + f = cy0 * pow(tany(y0), n) / n; + + if (!n) return mercatorRaw; + + function project(x, y) { + if (f > 0) { if (y < -halfPi$2 + epsilon$2) y = -halfPi$2 + epsilon$2; } + else { if (y > halfPi$2 - epsilon$2) y = halfPi$2 - epsilon$2; } + var r = f / pow(tany(y), n); + return [r * sin$1(n * x), f - r * cos$1(n * x)]; + } + + project.invert = function(x, y) { + var fy = f - y, r = sign(n) * sqrt(x * x + fy * fy), + l = atan2(x, abs(fy)) * sign(fy); + if (fy * n < 0) + l -= pi$3 * sign(x) * sign(fy); + return [l / n, 2 * atan(pow(f / r, 1 / n)) - halfPi$2]; + }; + + return project; + } + + function conicConformal() { + return conicProjection(conicConformalRaw) + .scale(109.5) + .parallels([30, 30]); + } + + function equirectangularRaw(lambda, phi) { + return [lambda, phi]; + } + + equirectangularRaw.invert = equirectangularRaw; + + function equirectangular() { + return projection(equirectangularRaw) + .scale(152.63); + } + + function conicEquidistantRaw(y0, y1) { + var cy0 = cos$1(y0), + n = y0 === y1 ? sin$1(y0) : (cy0 - cos$1(y1)) / (y1 - y0), + g = cy0 / n + y0; + + if (abs(n) < epsilon$2) return equirectangularRaw; + + function project(x, y) { + var gy = g - y, nx = n * x; + return [gy * sin$1(nx), g - gy * cos$1(nx)]; + } + + project.invert = function(x, y) { + var gy = g - y, + l = atan2(x, abs(gy)) * sign(gy); + if (gy * n < 0) + l -= pi$3 * sign(x) * sign(gy); + return [l / n, g - sign(n) * sqrt(x * x + gy * gy)]; + }; + + return project; + } + + function conicEquidistant() { + return conicProjection(conicEquidistantRaw) + .scale(131.154) + .center([0, 13.9389]); + } + + var A1 = 1.340264, + A2 = -0.081106, + A3 = 0.000893, + A4 = 0.003796, + M = sqrt(3) / 2, + iterations = 12; + + function equalEarthRaw(lambda, phi) { + var l = asin(M * sin$1(phi)), l2 = l * l, l6 = l2 * l2 * l2; + return [ + lambda * cos$1(l) / (M * (A1 + 3 * A2 * l2 + l6 * (7 * A3 + 9 * A4 * l2))), + l * (A1 + A2 * l2 + l6 * (A3 + A4 * l2)) + ]; + } + + equalEarthRaw.invert = function(x, y) { + var l = y, l2 = l * l, l6 = l2 * l2 * l2; + for (var i = 0, delta, fy, fpy; i < iterations; ++i) { + fy = l * (A1 + A2 * l2 + l6 * (A3 + A4 * l2)) - y; + fpy = A1 + 3 * A2 * l2 + l6 * (7 * A3 + 9 * A4 * l2); + l -= delta = fy / fpy, l2 = l * l, l6 = l2 * l2 * l2; + if (abs(delta) < epsilon2$1) break; + } + return [ + M * x * (A1 + 3 * A2 * l2 + l6 * (7 * A3 + 9 * A4 * l2)) / cos$1(l), + asin(sin$1(l) / M) + ]; + }; + + function equalEarth() { + return projection(equalEarthRaw) + .scale(177.158); + } + + function gnomonicRaw(x, y) { + var cy = cos$1(y), k = cos$1(x) * cy; + return [cy * sin$1(x) / k, sin$1(y) / k]; + } + + gnomonicRaw.invert = azimuthalInvert(atan); + + function gnomonic() { + return projection(gnomonicRaw) + .scale(144.049) + .clipAngle(60); + } + + function identity$5() { + var k = 1, tx = 0, ty = 0, sx = 1, sy = 1, // scale, translate and reflect + alpha = 0, ca, sa, // angle + x0 = null, y0, x1, y1, // clip extent + kx = 1, ky = 1, + transform = transformer({ + point: function(x, y) { + var p = projection([x, y]); + this.stream.point(p[0], p[1]); + } + }), + postclip = identity$4, + cache, + cacheStream; + + function reset() { + kx = k * sx; + ky = k * sy; + cache = cacheStream = null; + return projection; + } + + function projection (p) { + var x = p[0] * kx, y = p[1] * ky; + if (alpha) { + var t = y * ca - x * sa; + x = x * ca + y * sa; + y = t; + } + return [x + tx, y + ty]; + } + projection.invert = function(p) { + var x = p[0] - tx, y = p[1] - ty; + if (alpha) { + var t = y * ca + x * sa; + x = x * ca - y * sa; + y = t; + } + return [x / kx, y / ky]; + }; + projection.stream = function(stream) { + return cache && cacheStream === stream ? cache : cache = transform(postclip(cacheStream = stream)); + }; + projection.postclip = function(_) { + return arguments.length ? (postclip = _, x0 = y0 = x1 = y1 = null, reset()) : postclip; + }; + projection.clipExtent = function(_) { + return arguments.length ? (postclip = _ == null ? (x0 = y0 = x1 = y1 = null, identity$4) : clipRectangle(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]), reset()) : x0 == null ? null : [[x0, y0], [x1, y1]]; + }; + projection.scale = function(_) { + return arguments.length ? (k = +_, reset()) : k; + }; + projection.translate = function(_) { + return arguments.length ? (tx = +_[0], ty = +_[1], reset()) : [tx, ty]; + }; + projection.angle = function(_) { + return arguments.length ? (alpha = _ % 360 * radians, sa = sin$1(alpha), ca = cos$1(alpha), reset()) : alpha * degrees$1; + }; + projection.reflectX = function(_) { + return arguments.length ? (sx = _ ? -1 : 1, reset()) : sx < 0; + }; + projection.reflectY = function(_) { + return arguments.length ? (sy = _ ? -1 : 1, reset()) : sy < 0; + }; + projection.fitExtent = function(extent, object) { + return fitExtent(projection, extent, object); + }; + projection.fitSize = function(size, object) { + return fitSize(projection, size, object); + }; + projection.fitWidth = function(width, object) { + return fitWidth(projection, width, object); + }; + projection.fitHeight = function(height, object) { + return fitHeight(projection, height, object); + }; + + return projection; + } + + function naturalEarth1Raw(lambda, phi) { + var phi2 = phi * phi, phi4 = phi2 * phi2; + return [ + lambda * (0.8707 - 0.131979 * phi2 + phi4 * (-0.013791 + phi4 * (0.003971 * phi2 - 0.001529 * phi4))), + phi * (1.007226 + phi2 * (0.015085 + phi4 * (-0.044475 + 0.028874 * phi2 - 0.005916 * phi4))) + ]; + } + + naturalEarth1Raw.invert = function(x, y) { + var phi = y, i = 25, delta; + do { + var phi2 = phi * phi, phi4 = phi2 * phi2; + phi -= delta = (phi * (1.007226 + phi2 * (0.015085 + phi4 * (-0.044475 + 0.028874 * phi2 - 0.005916 * phi4))) - y) / + (1.007226 + phi2 * (0.015085 * 3 + phi4 * (-0.044475 * 7 + 0.028874 * 9 * phi2 - 0.005916 * 11 * phi4))); + } while (abs(delta) > epsilon$2 && --i > 0); + return [ + x / (0.8707 + (phi2 = phi * phi) * (-0.131979 + phi2 * (-0.013791 + phi2 * phi2 * phi2 * (0.003971 - 0.001529 * phi2)))), + phi + ]; + }; + + function naturalEarth1() { + return projection(naturalEarth1Raw) + .scale(175.295); + } + + function orthographicRaw(x, y) { + return [cos$1(y) * sin$1(x), sin$1(y)]; + } + + orthographicRaw.invert = azimuthalInvert(asin); + + function orthographic() { + return projection(orthographicRaw) + .scale(249.5) + .clipAngle(90 + epsilon$2); + } + + function stereographicRaw(x, y) { + var cy = cos$1(y), k = 1 + cos$1(x) * cy; + return [cy * sin$1(x) / k, sin$1(y) / k]; + } + + stereographicRaw.invert = azimuthalInvert(function(z) { + return 2 * atan(z); + }); + + function stereographic() { + return projection(stereographicRaw) + .scale(250) + .clipAngle(142); + } + + function transverseMercatorRaw(lambda, phi) { + return [log(tan((halfPi$2 + phi) / 2)), -lambda]; + } + + transverseMercatorRaw.invert = function(x, y) { + return [-y, 2 * atan(exp(x)) - halfPi$2]; + }; + + function transverseMercator() { + var m = mercatorProjection(transverseMercatorRaw), + center = m.center, + rotate = m.rotate; + + m.center = function(_) { + return arguments.length ? center([-_[1], _[0]]) : (_ = center(), [_[1], -_[0]]); + }; + + m.rotate = function(_) { + return arguments.length ? rotate([_[0], _[1], _.length > 2 ? _[2] + 90 : 90]) : (_ = rotate(), [_[0], _[1], _[2] - 90]); + }; + + return rotate([0, 0, 90]) + .scale(159.155); + } + + function defaultSeparation(a, b) { + return a.parent === b.parent ? 1 : 2; + } + + function meanX(children) { + return children.reduce(meanXReduce, 0) / children.length; + } + + function meanXReduce(x, c) { + return x + c.x; + } + + function maxY(children) { + return 1 + children.reduce(maxYReduce, 0); + } + + function maxYReduce(y, c) { + return Math.max(y, c.y); + } + + function leafLeft(node) { + var children; + while (children = node.children) node = children[0]; + return node; + } + + function leafRight(node) { + var children; + while (children = node.children) node = children[children.length - 1]; + return node; + } + + function cluster() { + var separation = defaultSeparation, + dx = 1, + dy = 1, + nodeSize = false; + + function cluster(root) { + var previousNode, + x = 0; + + // First walk, computing the initial x & y values. + root.eachAfter(function(node) { + var children = node.children; + if (children) { + node.x = meanX(children); + node.y = maxY(children); + } else { + node.x = previousNode ? x += separation(node, previousNode) : 0; + node.y = 0; + previousNode = node; + } + }); + + var left = leafLeft(root), + right = leafRight(root), + x0 = left.x - separation(left, right) / 2, + x1 = right.x + separation(right, left) / 2; + + // Second walk, normalizing x & y to the desired size. + return root.eachAfter(nodeSize ? function(node) { + node.x = (node.x - root.x) * dx; + node.y = (root.y - node.y) * dy; + } : function(node) { + node.x = (node.x - x0) / (x1 - x0) * dx; + node.y = (1 - (root.y ? node.y / root.y : 1)) * dy; + }); + } + + cluster.separation = function(x) { + return arguments.length ? (separation = x, cluster) : separation; + }; + + cluster.size = function(x) { + return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], cluster) : (nodeSize ? null : [dx, dy]); + }; + + cluster.nodeSize = function(x) { + return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], cluster) : (nodeSize ? [dx, dy] : null); + }; + + return cluster; + } + + function count(node) { + var sum = 0, + children = node.children, + i = children && children.length; + if (!i) sum = 1; + else while (--i >= 0) sum += children[i].value; + node.value = sum; + } + + function node_count() { + return this.eachAfter(count); + } + + function node_each(callback) { + var node = this, current, next = [node], children, i, n; + do { + current = next.reverse(), next = []; + while (node = current.pop()) { + callback(node), children = node.children; + if (children) for (i = 0, n = children.length; i < n; ++i) { + next.push(children[i]); + } + } + } while (next.length); + return this; + } + + function node_eachBefore(callback) { + var node = this, nodes = [node], children, i; + while (node = nodes.pop()) { + callback(node), children = node.children; + if (children) for (i = children.length - 1; i >= 0; --i) { + nodes.push(children[i]); + } + } + return this; + } + + function node_eachAfter(callback) { + var node = this, nodes = [node], next = [], children, i, n; + while (node = nodes.pop()) { + next.push(node), children = node.children; + if (children) for (i = 0, n = children.length; i < n; ++i) { + nodes.push(children[i]); + } + } + while (node = next.pop()) { + callback(node); + } + return this; + } + + function node_sum(value) { + return this.eachAfter(function(node) { + var sum = +value(node.data) || 0, + children = node.children, + i = children && children.length; + while (--i >= 0) sum += children[i].value; + node.value = sum; + }); + } + + function node_sort(compare) { + return this.eachBefore(function(node) { + if (node.children) { + node.children.sort(compare); + } + }); + } + + function node_path(end) { + var start = this, + ancestor = leastCommonAncestor(start, end), + nodes = [start]; + while (start !== ancestor) { + start = start.parent; + nodes.push(start); + } + var k = nodes.length; + while (end !== ancestor) { + nodes.splice(k, 0, end); + end = end.parent; + } + return nodes; + } + + function leastCommonAncestor(a, b) { + if (a === b) return a; + var aNodes = a.ancestors(), + bNodes = b.ancestors(), + c = null; + a = aNodes.pop(); + b = bNodes.pop(); + while (a === b) { + c = a; + a = aNodes.pop(); + b = bNodes.pop(); + } + return c; + } + + function node_ancestors() { + var node = this, nodes = [node]; + while (node = node.parent) { + nodes.push(node); + } + return nodes; + } + + function node_descendants() { + var nodes = []; + this.each(function(node) { + nodes.push(node); + }); + return nodes; + } + + function node_leaves() { + var leaves = []; + this.eachBefore(function(node) { + if (!node.children) { + leaves.push(node); + } + }); + return leaves; + } + + function node_links() { + var root = this, links = []; + root.each(function(node) { + if (node !== root) { // Don’t include the root’s parent, if any. + links.push({source: node.parent, target: node}); + } + }); + return links; + } + + function hierarchy(data, children) { + var root = new Node(data), + valued = +data.value && (root.value = data.value), + node, + nodes = [root], + child, + childs, + i, + n; + + if (children == null) children = defaultChildren; + + while (node = nodes.pop()) { + if (valued) node.value = +node.data.value; + if ((childs = children(node.data)) && (n = childs.length)) { + node.children = new Array(n); + for (i = n - 1; i >= 0; --i) { + nodes.push(child = node.children[i] = new Node(childs[i])); + child.parent = node; + child.depth = node.depth + 1; + } + } + } + + return root.eachBefore(computeHeight); + } + + function node_copy() { + return hierarchy(this).eachBefore(copyData); + } + + function defaultChildren(d) { + return d.children; + } + + function copyData(node) { + node.data = node.data.data; + } + + function computeHeight(node) { + var height = 0; + do node.height = height; + while ((node = node.parent) && (node.height < ++height)); + } + + function Node(data) { + this.data = data; + this.depth = + this.height = 0; + this.parent = null; + } + + Node.prototype = hierarchy.prototype = { + constructor: Node, + count: node_count, + each: node_each, + eachAfter: node_eachAfter, + eachBefore: node_eachBefore, + sum: node_sum, + sort: node_sort, + path: node_path, + ancestors: node_ancestors, + descendants: node_descendants, + leaves: node_leaves, + links: node_links, + copy: node_copy + }; + + var slice$4 = Array.prototype.slice; + + function shuffle$1(array) { + var m = array.length, + t, + i; + + while (m) { + i = Math.random() * m-- | 0; + t = array[m]; + array[m] = array[i]; + array[i] = t; + } + + return array; + } + + function enclose(circles) { + var i = 0, n = (circles = shuffle$1(slice$4.call(circles))).length, B = [], p, e; + + while (i < n) { + p = circles[i]; + if (e && enclosesWeak(e, p)) ++i; + else e = encloseBasis(B = extendBasis(B, p)), i = 0; + } + + return e; + } + + function extendBasis(B, p) { + var i, j; + + if (enclosesWeakAll(p, B)) return [p]; + + // If we get here then B must have at least one element. + for (i = 0; i < B.length; ++i) { + if (enclosesNot(p, B[i]) + && enclosesWeakAll(encloseBasis2(B[i], p), B)) { + return [B[i], p]; + } + } + + // If we get here then B must have at least two elements. + for (i = 0; i < B.length - 1; ++i) { + for (j = i + 1; j < B.length; ++j) { + if (enclosesNot(encloseBasis2(B[i], B[j]), p) + && enclosesNot(encloseBasis2(B[i], p), B[j]) + && enclosesNot(encloseBasis2(B[j], p), B[i]) + && enclosesWeakAll(encloseBasis3(B[i], B[j], p), B)) { + return [B[i], B[j], p]; + } + } + } + + // If we get here then something is very wrong. + throw new Error; + } + + function enclosesNot(a, b) { + var dr = a.r - b.r, dx = b.x - a.x, dy = b.y - a.y; + return dr < 0 || dr * dr < dx * dx + dy * dy; + } + + function enclosesWeak(a, b) { + var dr = a.r - b.r + 1e-6, dx = b.x - a.x, dy = b.y - a.y; + return dr > 0 && dr * dr > dx * dx + dy * dy; + } + + function enclosesWeakAll(a, B) { + for (var i = 0; i < B.length; ++i) { + if (!enclosesWeak(a, B[i])) { + return false; + } + } + return true; + } + + function encloseBasis(B) { + switch (B.length) { + case 1: return encloseBasis1(B[0]); + case 2: return encloseBasis2(B[0], B[1]); + case 3: return encloseBasis3(B[0], B[1], B[2]); + } + } + + function encloseBasis1(a) { + return { + x: a.x, + y: a.y, + r: a.r + }; + } + + function encloseBasis2(a, b) { + var x1 = a.x, y1 = a.y, r1 = a.r, + x2 = b.x, y2 = b.y, r2 = b.r, + x21 = x2 - x1, y21 = y2 - y1, r21 = r2 - r1, + l = Math.sqrt(x21 * x21 + y21 * y21); + return { + x: (x1 + x2 + x21 / l * r21) / 2, + y: (y1 + y2 + y21 / l * r21) / 2, + r: (l + r1 + r2) / 2 + }; + } + + function encloseBasis3(a, b, c) { + var x1 = a.x, y1 = a.y, r1 = a.r, + x2 = b.x, y2 = b.y, r2 = b.r, + x3 = c.x, y3 = c.y, r3 = c.r, + a2 = x1 - x2, + a3 = x1 - x3, + b2 = y1 - y2, + b3 = y1 - y3, + c2 = r2 - r1, + c3 = r3 - r1, + d1 = x1 * x1 + y1 * y1 - r1 * r1, + d2 = d1 - x2 * x2 - y2 * y2 + r2 * r2, + d3 = d1 - x3 * x3 - y3 * y3 + r3 * r3, + ab = a3 * b2 - a2 * b3, + xa = (b2 * d3 - b3 * d2) / (ab * 2) - x1, + xb = (b3 * c2 - b2 * c3) / ab, + ya = (a3 * d2 - a2 * d3) / (ab * 2) - y1, + yb = (a2 * c3 - a3 * c2) / ab, + A = xb * xb + yb * yb - 1, + B = 2 * (r1 + xa * xb + ya * yb), + C = xa * xa + ya * ya - r1 * r1, + r = -(A ? (B + Math.sqrt(B * B - 4 * A * C)) / (2 * A) : C / B); + return { + x: x1 + xa + xb * r, + y: y1 + ya + yb * r, + r: r + }; + } + + function place(b, a, c) { + var dx = b.x - a.x, x, a2, + dy = b.y - a.y, y, b2, + d2 = dx * dx + dy * dy; + if (d2) { + a2 = a.r + c.r, a2 *= a2; + b2 = b.r + c.r, b2 *= b2; + if (a2 > b2) { + x = (d2 + b2 - a2) / (2 * d2); + y = Math.sqrt(Math.max(0, b2 / d2 - x * x)); + c.x = b.x - x * dx - y * dy; + c.y = b.y - x * dy + y * dx; + } else { + x = (d2 + a2 - b2) / (2 * d2); + y = Math.sqrt(Math.max(0, a2 / d2 - x * x)); + c.x = a.x + x * dx - y * dy; + c.y = a.y + x * dy + y * dx; + } + } else { + c.x = a.x + c.r; + c.y = a.y; + } + } + + function intersects(a, b) { + var dr = a.r + b.r - 1e-6, dx = b.x - a.x, dy = b.y - a.y; + return dr > 0 && dr * dr > dx * dx + dy * dy; + } + + function score(node) { + var a = node._, + b = node.next._, + ab = a.r + b.r, + dx = (a.x * b.r + b.x * a.r) / ab, + dy = (a.y * b.r + b.y * a.r) / ab; + return dx * dx + dy * dy; + } + + function Node$1(circle) { + this._ = circle; + this.next = null; + this.previous = null; + } + + function packEnclose(circles) { + if (!(n = circles.length)) return 0; + + var a, b, c, n, aa, ca, i, j, k, sj, sk; + + // Place the first circle. + a = circles[0], a.x = 0, a.y = 0; + if (!(n > 1)) return a.r; + + // Place the second circle. + b = circles[1], a.x = -b.r, b.x = a.r, b.y = 0; + if (!(n > 2)) return a.r + b.r; + + // Place the third circle. + place(b, a, c = circles[2]); + + // Initialize the front-chain using the first three circles a, b and c. + a = new Node$1(a), b = new Node$1(b), c = new Node$1(c); + a.next = c.previous = b; + b.next = a.previous = c; + c.next = b.previous = a; + + // Attempt to place each remaining circle… + pack: for (i = 3; i < n; ++i) { + place(a._, b._, c = circles[i]), c = new Node$1(c); + + // Find the closest intersecting circle on the front-chain, if any. + // “Closeness” is determined by linear distance along the front-chain. + // “Ahead” or “behind” is likewise determined by linear distance. + j = b.next, k = a.previous, sj = b._.r, sk = a._.r; + do { + if (sj <= sk) { + if (intersects(j._, c._)) { + b = j, a.next = b, b.previous = a, --i; + continue pack; + } + sj += j._.r, j = j.next; + } else { + if (intersects(k._, c._)) { + a = k, a.next = b, b.previous = a, --i; + continue pack; + } + sk += k._.r, k = k.previous; + } + } while (j !== k.next); + + // Success! Insert the new circle c between a and b. + c.previous = a, c.next = b, a.next = b.previous = b = c; + + // Compute the new closest circle pair to the centroid. + aa = score(a); + while ((c = c.next) !== b) { + if ((ca = score(c)) < aa) { + a = c, aa = ca; + } + } + b = a.next; + } + + // Compute the enclosing circle of the front chain. + a = [b._], c = b; while ((c = c.next) !== b) a.push(c._); c = enclose(a); + + // Translate the circles to put the enclosing circle around the origin. + for (i = 0; i < n; ++i) a = circles[i], a.x -= c.x, a.y -= c.y; + + return c.r; + } + + function siblings(circles) { + packEnclose(circles); + return circles; + } + + function optional(f) { + return f == null ? null : required(f); + } + + function required(f) { + if (typeof f !== "function") throw new Error; + return f; + } + + function constantZero() { + return 0; + } + + function constant$9(x) { + return function() { + return x; + }; + } + + function defaultRadius$1(d) { + return Math.sqrt(d.value); + } + + function index$2() { + var radius = null, + dx = 1, + dy = 1, + padding = constantZero; + + function pack(root) { + root.x = dx / 2, root.y = dy / 2; + if (radius) { + root.eachBefore(radiusLeaf(radius)) + .eachAfter(packChildren(padding, 0.5)) + .eachBefore(translateChild(1)); + } else { + root.eachBefore(radiusLeaf(defaultRadius$1)) + .eachAfter(packChildren(constantZero, 1)) + .eachAfter(packChildren(padding, root.r / Math.min(dx, dy))) + .eachBefore(translateChild(Math.min(dx, dy) / (2 * root.r))); + } + return root; + } + + pack.radius = function(x) { + return arguments.length ? (radius = optional(x), pack) : radius; + }; + + pack.size = function(x) { + return arguments.length ? (dx = +x[0], dy = +x[1], pack) : [dx, dy]; + }; + + pack.padding = function(x) { + return arguments.length ? (padding = typeof x === "function" ? x : constant$9(+x), pack) : padding; + }; + + return pack; + } + + function radiusLeaf(radius) { + return function(node) { + if (!node.children) { + node.r = Math.max(0, +radius(node) || 0); + } + }; + } + + function packChildren(padding, k) { + return function(node) { + if (children = node.children) { + var children, + i, + n = children.length, + r = padding(node) * k || 0, + e; + + if (r) for (i = 0; i < n; ++i) children[i].r += r; + e = packEnclose(children); + if (r) for (i = 0; i < n; ++i) children[i].r -= r; + node.r = e + r; + } + }; + } + + function translateChild(k) { + return function(node) { + var parent = node.parent; + node.r *= k; + if (parent) { + node.x = parent.x + k * node.x; + node.y = parent.y + k * node.y; + } + }; + } + + function roundNode(node) { + node.x0 = Math.round(node.x0); + node.y0 = Math.round(node.y0); + node.x1 = Math.round(node.x1); + node.y1 = Math.round(node.y1); + } + + function treemapDice(parent, x0, y0, x1, y1) { + var nodes = parent.children, + node, + i = -1, + n = nodes.length, + k = parent.value && (x1 - x0) / parent.value; + + while (++i < n) { + node = nodes[i], node.y0 = y0, node.y1 = y1; + node.x0 = x0, node.x1 = x0 += node.value * k; + } + } + + function partition() { + var dx = 1, + dy = 1, + padding = 0, + round = false; + + function partition(root) { + var n = root.height + 1; + root.x0 = + root.y0 = padding; + root.x1 = dx; + root.y1 = dy / n; + root.eachBefore(positionNode(dy, n)); + if (round) root.eachBefore(roundNode); + return root; + } + + function positionNode(dy, n) { + return function(node) { + if (node.children) { + treemapDice(node, node.x0, dy * (node.depth + 1) / n, node.x1, dy * (node.depth + 2) / n); + } + var x0 = node.x0, + y0 = node.y0, + x1 = node.x1 - padding, + y1 = node.y1 - padding; + if (x1 < x0) x0 = x1 = (x0 + x1) / 2; + if (y1 < y0) y0 = y1 = (y0 + y1) / 2; + node.x0 = x0; + node.y0 = y0; + node.x1 = x1; + node.y1 = y1; + }; + } + + partition.round = function(x) { + return arguments.length ? (round = !!x, partition) : round; + }; + + partition.size = function(x) { + return arguments.length ? (dx = +x[0], dy = +x[1], partition) : [dx, dy]; + }; + + partition.padding = function(x) { + return arguments.length ? (padding = +x, partition) : padding; + }; + + return partition; + } + + var keyPrefix$1 = "$", // Protect against keys like “__proto__”. + preroot = {depth: -1}, + ambiguous = {}; + + function defaultId(d) { + return d.id; + } + + function defaultParentId(d) { + return d.parentId; + } + + function stratify() { + var id = defaultId, + parentId = defaultParentId; + + function stratify(data) { + var d, + i, + n = data.length, + root, + parent, + node, + nodes = new Array(n), + nodeId, + nodeKey, + nodeByKey = {}; + + for (i = 0; i < n; ++i) { + d = data[i], node = nodes[i] = new Node(d); + if ((nodeId = id(d, i, data)) != null && (nodeId += "")) { + nodeKey = keyPrefix$1 + (node.id = nodeId); + nodeByKey[nodeKey] = nodeKey in nodeByKey ? ambiguous : node; + } + } + + for (i = 0; i < n; ++i) { + node = nodes[i], nodeId = parentId(data[i], i, data); + if (nodeId == null || !(nodeId += "")) { + if (root) throw new Error("multiple roots"); + root = node; + } else { + parent = nodeByKey[keyPrefix$1 + nodeId]; + if (!parent) throw new Error("missing: " + nodeId); + if (parent === ambiguous) throw new Error("ambiguous: " + nodeId); + if (parent.children) parent.children.push(node); + else parent.children = [node]; + node.parent = parent; + } + } + + if (!root) throw new Error("no root"); + root.parent = preroot; + root.eachBefore(function(node) { node.depth = node.parent.depth + 1; --n; }).eachBefore(computeHeight); + root.parent = null; + if (n > 0) throw new Error("cycle"); + + return root; + } + + stratify.id = function(x) { + return arguments.length ? (id = required(x), stratify) : id; + }; + + stratify.parentId = function(x) { + return arguments.length ? (parentId = required(x), stratify) : parentId; + }; + + return stratify; + } + + function defaultSeparation$1(a, b) { + return a.parent === b.parent ? 1 : 2; + } + + // function radialSeparation(a, b) { + // return (a.parent === b.parent ? 1 : 2) / a.depth; + // } + + // This function is used to traverse the left contour of a subtree (or + // subforest). It returns the successor of v on this contour. This successor is + // either given by the leftmost child of v or by the thread of v. The function + // returns null if and only if v is on the highest level of its subtree. + function nextLeft(v) { + var children = v.children; + return children ? children[0] : v.t; + } + + // This function works analogously to nextLeft. + function nextRight(v) { + var children = v.children; + return children ? children[children.length - 1] : v.t; + } + + // Shifts the current subtree rooted at w+. This is done by increasing + // prelim(w+) and mod(w+) by shift. + function moveSubtree(wm, wp, shift) { + var change = shift / (wp.i - wm.i); + wp.c -= change; + wp.s += shift; + wm.c += change; + wp.z += shift; + wp.m += shift; + } + + // All other shifts, applied to the smaller subtrees between w- and w+, are + // performed by this function. To prepare the shifts, we have to adjust + // change(w+), shift(w+), and change(w-). + function executeShifts(v) { + var shift = 0, + change = 0, + children = v.children, + i = children.length, + w; + while (--i >= 0) { + w = children[i]; + w.z += shift; + w.m += shift; + shift += w.s + (change += w.c); + } + } + + // If vi-’s ancestor is a sibling of v, returns vi-’s ancestor. Otherwise, + // returns the specified (default) ancestor. + function nextAncestor(vim, v, ancestor) { + return vim.a.parent === v.parent ? vim.a : ancestor; + } + + function TreeNode(node, i) { + this._ = node; + this.parent = null; + this.children = null; + this.A = null; // default ancestor + this.a = this; // ancestor + this.z = 0; // prelim + this.m = 0; // mod + this.c = 0; // change + this.s = 0; // shift + this.t = null; // thread + this.i = i; // number + } + + TreeNode.prototype = Object.create(Node.prototype); + + function treeRoot(root) { + var tree = new TreeNode(root, 0), + node, + nodes = [tree], + child, + children, + i, + n; + + while (node = nodes.pop()) { + if (children = node._.children) { + node.children = new Array(n = children.length); + for (i = n - 1; i >= 0; --i) { + nodes.push(child = node.children[i] = new TreeNode(children[i], i)); + child.parent = node; + } + } + } + + (tree.parent = new TreeNode(null, 0)).children = [tree]; + return tree; + } + + // Node-link tree diagram using the Reingold-Tilford "tidy" algorithm + function tree() { + var separation = defaultSeparation$1, + dx = 1, + dy = 1, + nodeSize = null; + + function tree(root) { + var t = treeRoot(root); + + // Compute the layout using Buchheim et al.’s algorithm. + t.eachAfter(firstWalk), t.parent.m = -t.z; + t.eachBefore(secondWalk); + + // If a fixed node size is specified, scale x and y. + if (nodeSize) root.eachBefore(sizeNode); + + // If a fixed tree size is specified, scale x and y based on the extent. + // Compute the left-most, right-most, and depth-most nodes for extents. + else { + var left = root, + right = root, + bottom = root; + root.eachBefore(function(node) { + if (node.x < left.x) left = node; + if (node.x > right.x) right = node; + if (node.depth > bottom.depth) bottom = node; + }); + var s = left === right ? 1 : separation(left, right) / 2, + tx = s - left.x, + kx = dx / (right.x + s + tx), + ky = dy / (bottom.depth || 1); + root.eachBefore(function(node) { + node.x = (node.x + tx) * kx; + node.y = node.depth * ky; + }); + } + + return root; + } + + // Computes a preliminary x-coordinate for v. Before that, FIRST WALK is + // applied recursively to the children of v, as well as the function + // APPORTION. After spacing out the children by calling EXECUTE SHIFTS, the + // node v is placed to the midpoint of its outermost children. + function firstWalk(v) { + var children = v.children, + siblings = v.parent.children, + w = v.i ? siblings[v.i - 1] : null; + if (children) { + executeShifts(v); + var midpoint = (children[0].z + children[children.length - 1].z) / 2; + if (w) { + v.z = w.z + separation(v._, w._); + v.m = v.z - midpoint; + } else { + v.z = midpoint; + } + } else if (w) { + v.z = w.z + separation(v._, w._); + } + v.parent.A = apportion(v, w, v.parent.A || siblings[0]); + } + + // Computes all real x-coordinates by summing up the modifiers recursively. + function secondWalk(v) { + v._.x = v.z + v.parent.m; + v.m += v.parent.m; + } + + // The core of the algorithm. Here, a new subtree is combined with the + // previous subtrees. Threads are used to traverse the inside and outside + // contours of the left and right subtree up to the highest common level. The + // vertices used for the traversals are vi+, vi-, vo-, and vo+, where the + // superscript o means outside and i means inside, the subscript - means left + // subtree and + means right subtree. For summing up the modifiers along the + // contour, we use respective variables si+, si-, so-, and so+. Whenever two + // nodes of the inside contours conflict, we compute the left one of the + // greatest uncommon ancestors using the function ANCESTOR and call MOVE + // SUBTREE to shift the subtree and prepare the shifts of smaller subtrees. + // Finally, we add a new thread (if necessary). + function apportion(v, w, ancestor) { + if (w) { + var vip = v, + vop = v, + vim = w, + vom = vip.parent.children[0], + sip = vip.m, + sop = vop.m, + sim = vim.m, + som = vom.m, + shift; + while (vim = nextRight(vim), vip = nextLeft(vip), vim && vip) { + vom = nextLeft(vom); + vop = nextRight(vop); + vop.a = v; + shift = vim.z + sim - vip.z - sip + separation(vim._, vip._); + if (shift > 0) { + moveSubtree(nextAncestor(vim, v, ancestor), v, shift); + sip += shift; + sop += shift; + } + sim += vim.m; + sip += vip.m; + som += vom.m; + sop += vop.m; + } + if (vim && !nextRight(vop)) { + vop.t = vim; + vop.m += sim - sop; + } + if (vip && !nextLeft(vom)) { + vom.t = vip; + vom.m += sip - som; + ancestor = v; + } + } + return ancestor; + } + + function sizeNode(node) { + node.x *= dx; + node.y = node.depth * dy; + } + + tree.separation = function(x) { + return arguments.length ? (separation = x, tree) : separation; + }; + + tree.size = function(x) { + return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], tree) : (nodeSize ? null : [dx, dy]); + }; + + tree.nodeSize = function(x) { + return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], tree) : (nodeSize ? [dx, dy] : null); + }; + + return tree; + } + + function treemapSlice(parent, x0, y0, x1, y1) { + var nodes = parent.children, + node, + i = -1, + n = nodes.length, + k = parent.value && (y1 - y0) / parent.value; + + while (++i < n) { + node = nodes[i], node.x0 = x0, node.x1 = x1; + node.y0 = y0, node.y1 = y0 += node.value * k; + } + } + + var phi = (1 + Math.sqrt(5)) / 2; + + function squarifyRatio(ratio, parent, x0, y0, x1, y1) { + var rows = [], + nodes = parent.children, + row, + nodeValue, + i0 = 0, + i1 = 0, + n = nodes.length, + dx, dy, + value = parent.value, + sumValue, + minValue, + maxValue, + newRatio, + minRatio, + alpha, + beta; + + while (i0 < n) { + dx = x1 - x0, dy = y1 - y0; + + // Find the next non-empty node. + do sumValue = nodes[i1++].value; while (!sumValue && i1 < n); + minValue = maxValue = sumValue; + alpha = Math.max(dy / dx, dx / dy) / (value * ratio); + beta = sumValue * sumValue * alpha; + minRatio = Math.max(maxValue / beta, beta / minValue); + + // Keep adding nodes while the aspect ratio maintains or improves. + for (; i1 < n; ++i1) { + sumValue += nodeValue = nodes[i1].value; + if (nodeValue < minValue) minValue = nodeValue; + if (nodeValue > maxValue) maxValue = nodeValue; + beta = sumValue * sumValue * alpha; + newRatio = Math.max(maxValue / beta, beta / minValue); + if (newRatio > minRatio) { sumValue -= nodeValue; break; } + minRatio = newRatio; + } + + // Position and record the row orientation. + rows.push(row = {value: sumValue, dice: dx < dy, children: nodes.slice(i0, i1)}); + if (row.dice) treemapDice(row, x0, y0, x1, value ? y0 += dy * sumValue / value : y1); + else treemapSlice(row, x0, y0, value ? x0 += dx * sumValue / value : x1, y1); + value -= sumValue, i0 = i1; + } + + return rows; + } + + var squarify = (function custom(ratio) { + + function squarify(parent, x0, y0, x1, y1) { + squarifyRatio(ratio, parent, x0, y0, x1, y1); + } + + squarify.ratio = function(x) { + return custom((x = +x) > 1 ? x : 1); + }; + + return squarify; + })(phi); + + function index$3() { + var tile = squarify, + round = false, + dx = 1, + dy = 1, + paddingStack = [0], + paddingInner = constantZero, + paddingTop = constantZero, + paddingRight = constantZero, + paddingBottom = constantZero, + paddingLeft = constantZero; + + function treemap(root) { + root.x0 = + root.y0 = 0; + root.x1 = dx; + root.y1 = dy; + root.eachBefore(positionNode); + paddingStack = [0]; + if (round) root.eachBefore(roundNode); + return root; + } + + function positionNode(node) { + var p = paddingStack[node.depth], + x0 = node.x0 + p, + y0 = node.y0 + p, + x1 = node.x1 - p, + y1 = node.y1 - p; + if (x1 < x0) x0 = x1 = (x0 + x1) / 2; + if (y1 < y0) y0 = y1 = (y0 + y1) / 2; + node.x0 = x0; + node.y0 = y0; + node.x1 = x1; + node.y1 = y1; + if (node.children) { + p = paddingStack[node.depth + 1] = paddingInner(node) / 2; + x0 += paddingLeft(node) - p; + y0 += paddingTop(node) - p; + x1 -= paddingRight(node) - p; + y1 -= paddingBottom(node) - p; + if (x1 < x0) x0 = x1 = (x0 + x1) / 2; + if (y1 < y0) y0 = y1 = (y0 + y1) / 2; + tile(node, x0, y0, x1, y1); + } + } + + treemap.round = function(x) { + return arguments.length ? (round = !!x, treemap) : round; + }; + + treemap.size = function(x) { + return arguments.length ? (dx = +x[0], dy = +x[1], treemap) : [dx, dy]; + }; + + treemap.tile = function(x) { + return arguments.length ? (tile = required(x), treemap) : tile; + }; + + treemap.padding = function(x) { + return arguments.length ? treemap.paddingInner(x).paddingOuter(x) : treemap.paddingInner(); + }; + + treemap.paddingInner = function(x) { + return arguments.length ? (paddingInner = typeof x === "function" ? x : constant$9(+x), treemap) : paddingInner; + }; + + treemap.paddingOuter = function(x) { + return arguments.length ? treemap.paddingTop(x).paddingRight(x).paddingBottom(x).paddingLeft(x) : treemap.paddingTop(); + }; + + treemap.paddingTop = function(x) { + return arguments.length ? (paddingTop = typeof x === "function" ? x : constant$9(+x), treemap) : paddingTop; + }; + + treemap.paddingRight = function(x) { + return arguments.length ? (paddingRight = typeof x === "function" ? x : constant$9(+x), treemap) : paddingRight; + }; + + treemap.paddingBottom = function(x) { + return arguments.length ? (paddingBottom = typeof x === "function" ? x : constant$9(+x), treemap) : paddingBottom; + }; + + treemap.paddingLeft = function(x) { + return arguments.length ? (paddingLeft = typeof x === "function" ? x : constant$9(+x), treemap) : paddingLeft; + }; + + return treemap; + } + + function binary(parent, x0, y0, x1, y1) { + var nodes = parent.children, + i, n = nodes.length, + sum, sums = new Array(n + 1); + + for (sums[0] = sum = i = 0; i < n; ++i) { + sums[i + 1] = sum += nodes[i].value; + } + + partition(0, n, parent.value, x0, y0, x1, y1); + + function partition(i, j, value, x0, y0, x1, y1) { + if (i >= j - 1) { + var node = nodes[i]; + node.x0 = x0, node.y0 = y0; + node.x1 = x1, node.y1 = y1; + return; + } + + var valueOffset = sums[i], + valueTarget = (value / 2) + valueOffset, + k = i + 1, + hi = j - 1; + + while (k < hi) { + var mid = k + hi >>> 1; + if (sums[mid] < valueTarget) k = mid + 1; + else hi = mid; + } + + if ((valueTarget - sums[k - 1]) < (sums[k] - valueTarget) && i + 1 < k) --k; + + var valueLeft = sums[k] - valueOffset, + valueRight = value - valueLeft; + + if ((x1 - x0) > (y1 - y0)) { + var xk = (x0 * valueRight + x1 * valueLeft) / value; + partition(i, k, valueLeft, x0, y0, xk, y1); + partition(k, j, valueRight, xk, y0, x1, y1); + } else { + var yk = (y0 * valueRight + y1 * valueLeft) / value; + partition(i, k, valueLeft, x0, y0, x1, yk); + partition(k, j, valueRight, x0, yk, x1, y1); + } + } + } + + function sliceDice(parent, x0, y0, x1, y1) { + (parent.depth & 1 ? treemapSlice : treemapDice)(parent, x0, y0, x1, y1); + } + + var resquarify = (function custom(ratio) { + + function resquarify(parent, x0, y0, x1, y1) { + if ((rows = parent._squarify) && (rows.ratio === ratio)) { + var rows, + row, + nodes, + i, + j = -1, + n, + m = rows.length, + value = parent.value; + + while (++j < m) { + row = rows[j], nodes = row.children; + for (i = row.value = 0, n = nodes.length; i < n; ++i) row.value += nodes[i].value; + if (row.dice) treemapDice(row, x0, y0, x1, y0 += (y1 - y0) * row.value / value); + else treemapSlice(row, x0, y0, x0 += (x1 - x0) * row.value / value, y1); + value -= row.value; + } + } else { + parent._squarify = rows = squarifyRatio(ratio, parent, x0, y0, x1, y1); + rows.ratio = ratio; + } + } + + resquarify.ratio = function(x) { + return custom((x = +x) > 1 ? x : 1); + }; + + return resquarify; + })(phi); + + function area$2(polygon) { + var i = -1, + n = polygon.length, + a, + b = polygon[n - 1], + area = 0; + + while (++i < n) { + a = b; + b = polygon[i]; + area += a[1] * b[0] - a[0] * b[1]; + } + + return area / 2; + } + + function centroid$1(polygon) { + var i = -1, + n = polygon.length, + x = 0, + y = 0, + a, + b = polygon[n - 1], + c, + k = 0; + + while (++i < n) { + a = b; + b = polygon[i]; + k += c = a[0] * b[1] - b[0] * a[1]; + x += (a[0] + b[0]) * c; + y += (a[1] + b[1]) * c; + } + + return k *= 3, [x / k, y / k]; + } + + // Returns the 2D cross product of AB and AC vectors, i.e., the z-component of + // the 3D cross product in a quadrant I Cartesian coordinate system (+x is + // right, +y is up). Returns a positive value if ABC is counter-clockwise, + // negative if clockwise, and zero if the points are collinear. + function cross$1(a, b, c) { + return (b[0] - a[0]) * (c[1] - a[1]) - (b[1] - a[1]) * (c[0] - a[0]); + } + + function lexicographicOrder(a, b) { + return a[0] - b[0] || a[1] - b[1]; + } + + // Computes the upper convex hull per the monotone chain algorithm. + // Assumes points.length >= 3, is sorted by x, unique in y. + // Returns an array of indices into points in left-to-right order. + function computeUpperHullIndexes(points) { + var n = points.length, + indexes = [0, 1], + size = 2; + + for (var i = 2; i < n; ++i) { + while (size > 1 && cross$1(points[indexes[size - 2]], points[indexes[size - 1]], points[i]) <= 0) --size; + indexes[size++] = i; + } + + return indexes.slice(0, size); // remove popped points + } + + function hull(points) { + if ((n = points.length) < 3) return null; + + var i, + n, + sortedPoints = new Array(n), + flippedPoints = new Array(n); + + for (i = 0; i < n; ++i) sortedPoints[i] = [+points[i][0], +points[i][1], i]; + sortedPoints.sort(lexicographicOrder); + for (i = 0; i < n; ++i) flippedPoints[i] = [sortedPoints[i][0], -sortedPoints[i][1]]; + + var upperIndexes = computeUpperHullIndexes(sortedPoints), + lowerIndexes = computeUpperHullIndexes(flippedPoints); + + // Construct the hull polygon, removing possible duplicate endpoints. + var skipLeft = lowerIndexes[0] === upperIndexes[0], + skipRight = lowerIndexes[lowerIndexes.length - 1] === upperIndexes[upperIndexes.length - 1], + hull = []; + + // Add upper hull in right-to-l order. + // Then add lower hull in left-to-right order. + for (i = upperIndexes.length - 1; i >= 0; --i) hull.push(points[sortedPoints[upperIndexes[i]][2]]); + for (i = +skipLeft; i < lowerIndexes.length - skipRight; ++i) hull.push(points[sortedPoints[lowerIndexes[i]][2]]); + + return hull; + } + + function contains$2(polygon, point) { + var n = polygon.length, + p = polygon[n - 1], + x = point[0], y = point[1], + x0 = p[0], y0 = p[1], + x1, y1, + inside = false; + + for (var i = 0; i < n; ++i) { + p = polygon[i], x1 = p[0], y1 = p[1]; + if (((y1 > y) !== (y0 > y)) && (x < (x0 - x1) * (y - y1) / (y0 - y1) + x1)) inside = !inside; + x0 = x1, y0 = y1; + } + + return inside; + } + + function length$2(polygon) { + var i = -1, + n = polygon.length, + b = polygon[n - 1], + xa, + ya, + xb = b[0], + yb = b[1], + perimeter = 0; + + while (++i < n) { + xa = xb; + ya = yb; + b = polygon[i]; + xb = b[0]; + yb = b[1]; + xa -= xb; + ya -= yb; + perimeter += Math.sqrt(xa * xa + ya * ya); + } + + return perimeter; + } + + function defaultSource$1() { + return Math.random(); + } + + var uniform = (function sourceRandomUniform(source) { + function randomUniform(min, max) { + min = min == null ? 0 : +min; + max = max == null ? 1 : +max; + if (arguments.length === 1) max = min, min = 0; + else max -= min; + return function() { + return source() * max + min; + }; + } + + randomUniform.source = sourceRandomUniform; + + return randomUniform; + })(defaultSource$1); + + var normal = (function sourceRandomNormal(source) { + function randomNormal(mu, sigma) { + var x, r; + mu = mu == null ? 0 : +mu; + sigma = sigma == null ? 1 : +sigma; + return function() { + var y; + + // If available, use the second previously-generated uniform random. + if (x != null) y = x, x = null; + + // Otherwise, generate a new x and y. + else do { + x = source() * 2 - 1; + y = source() * 2 - 1; + r = x * x + y * y; + } while (!r || r > 1); + + return mu + sigma * y * Math.sqrt(-2 * Math.log(r) / r); + }; + } + + randomNormal.source = sourceRandomNormal; + + return randomNormal; + })(defaultSource$1); + + var logNormal = (function sourceRandomLogNormal(source) { + function randomLogNormal() { + var randomNormal = normal.source(source).apply(this, arguments); + return function() { + return Math.exp(randomNormal()); + }; + } + + randomLogNormal.source = sourceRandomLogNormal; + + return randomLogNormal; + })(defaultSource$1); + + var irwinHall = (function sourceRandomIrwinHall(source) { + function randomIrwinHall(n) { + return function() { + for (var sum = 0, i = 0; i < n; ++i) sum += source(); + return sum; + }; + } + + randomIrwinHall.source = sourceRandomIrwinHall; + + return randomIrwinHall; + })(defaultSource$1); + + var bates = (function sourceRandomBates(source) { + function randomBates(n) { + var randomIrwinHall = irwinHall.source(source)(n); + return function() { + return randomIrwinHall() / n; + }; + } + + randomBates.source = sourceRandomBates; + + return randomBates; + })(defaultSource$1); + + var exponential$1 = (function sourceRandomExponential(source) { + function randomExponential(lambda) { + return function() { + return -Math.log(1 - source()) / lambda; + }; + } + + randomExponential.source = sourceRandomExponential; + + return randomExponential; + })(defaultSource$1); + + function initRange(domain, range) { + switch (arguments.length) { + case 0: break; + case 1: this.range(domain); break; + default: this.range(range).domain(domain); break; + } + return this; + } + + function initInterpolator(domain, interpolator) { + switch (arguments.length) { + case 0: break; + case 1: this.interpolator(domain); break; + default: this.interpolator(interpolator).domain(domain); break; + } + return this; + } + + var array$3 = Array.prototype; + + var map$3 = array$3.map; + var slice$5 = array$3.slice; + + var implicit = {name: "implicit"}; + + function ordinal() { + var index = map$1(), + domain = [], + range = [], + unknown = implicit; + + function scale(d) { + var key = d + "", i = index.get(key); + if (!i) { + if (unknown !== implicit) return unknown; + index.set(key, i = domain.push(d)); + } + return range[(i - 1) % range.length]; + } + + scale.domain = function(_) { + if (!arguments.length) return domain.slice(); + domain = [], index = map$1(); + var i = -1, n = _.length, d, key; + while (++i < n) if (!index.has(key = (d = _[i]) + "")) index.set(key, domain.push(d)); + return scale; + }; + + scale.range = function(_) { + return arguments.length ? (range = slice$5.call(_), scale) : range.slice(); + }; + + scale.unknown = function(_) { + return arguments.length ? (unknown = _, scale) : unknown; + }; + + scale.copy = function() { + return ordinal(domain, range).unknown(unknown); + }; + + initRange.apply(scale, arguments); + + return scale; + } + + function band() { + var scale = ordinal().unknown(undefined), + domain = scale.domain, + ordinalRange = scale.range, + range = [0, 1], + step, + bandwidth, + round = false, + paddingInner = 0, + paddingOuter = 0, + align = 0.5; + + delete scale.unknown; + + function rescale() { + var n = domain().length, + reverse = range[1] < range[0], + start = range[reverse - 0], + stop = range[1 - reverse]; + step = (stop - start) / Math.max(1, n - paddingInner + paddingOuter * 2); + if (round) step = Math.floor(step); + start += (stop - start - step * (n - paddingInner)) * align; + bandwidth = step * (1 - paddingInner); + if (round) start = Math.round(start), bandwidth = Math.round(bandwidth); + var values = sequence(n).map(function(i) { return start + step * i; }); + return ordinalRange(reverse ? values.reverse() : values); + } + + scale.domain = function(_) { + return arguments.length ? (domain(_), rescale()) : domain(); + }; + + scale.range = function(_) { + return arguments.length ? (range = [+_[0], +_[1]], rescale()) : range.slice(); + }; + + scale.rangeRound = function(_) { + return range = [+_[0], +_[1]], round = true, rescale(); + }; + + scale.bandwidth = function() { + return bandwidth; + }; + + scale.step = function() { + return step; + }; + + scale.round = function(_) { + return arguments.length ? (round = !!_, rescale()) : round; + }; + + scale.padding = function(_) { + return arguments.length ? (paddingInner = Math.min(1, paddingOuter = +_), rescale()) : paddingInner; + }; + + scale.paddingInner = function(_) { + return arguments.length ? (paddingInner = Math.min(1, _), rescale()) : paddingInner; + }; + + scale.paddingOuter = function(_) { + return arguments.length ? (paddingOuter = +_, rescale()) : paddingOuter; + }; + + scale.align = function(_) { + return arguments.length ? (align = Math.max(0, Math.min(1, _)), rescale()) : align; + }; + + scale.copy = function() { + return band(domain(), range) + .round(round) + .paddingInner(paddingInner) + .paddingOuter(paddingOuter) + .align(align); + }; + + return initRange.apply(rescale(), arguments); + } + + function pointish(scale) { + var copy = scale.copy; + + scale.padding = scale.paddingOuter; + delete scale.paddingInner; + delete scale.paddingOuter; + + scale.copy = function() { + return pointish(copy()); + }; + + return scale; + } + + function point$1() { + return pointish(band.apply(null, arguments).paddingInner(1)); + } + + function constant$a(x) { + return function() { + return x; + }; + } + + function number$2(x) { + return +x; + } + + var unit = [0, 1]; + + function identity$6(x) { + return x; + } + + function normalize(a, b) { + return (b -= (a = +a)) + ? function(x) { return (x - a) / b; } + : constant$a(isNaN(b) ? NaN : 0.5); + } + + function clamper(domain) { + var a = domain[0], b = domain[domain.length - 1], t; + if (a > b) t = a, a = b, b = t; + return function(x) { return Math.max(a, Math.min(b, x)); }; + } + + // normalize(a, b)(x) takes a domain value x in [a,b] and returns the corresponding parameter t in [0,1]. + // interpolate(a, b)(t) takes a parameter t in [0,1] and returns the corresponding range value x in [a,b]. + function bimap(domain, range, interpolate) { + var d0 = domain[0], d1 = domain[1], r0 = range[0], r1 = range[1]; + if (d1 < d0) d0 = normalize(d1, d0), r0 = interpolate(r1, r0); + else d0 = normalize(d0, d1), r0 = interpolate(r0, r1); + return function(x) { return r0(d0(x)); }; + } + + function polymap(domain, range, interpolate) { + var j = Math.min(domain.length, range.length) - 1, + d = new Array(j), + r = new Array(j), + i = -1; + + // Reverse descending domains. + if (domain[j] < domain[0]) { + domain = domain.slice().reverse(); + range = range.slice().reverse(); + } + + while (++i < j) { + d[i] = normalize(domain[i], domain[i + 1]); + r[i] = interpolate(range[i], range[i + 1]); + } + + return function(x) { + var i = bisectRight(domain, x, 1, j) - 1; + return r[i](d[i](x)); + }; + } + + function copy(source, target) { + return target + .domain(source.domain()) + .range(source.range()) + .interpolate(source.interpolate()) + .clamp(source.clamp()) + .unknown(source.unknown()); + } + + function transformer$1() { + var domain = unit, + range = unit, + interpolate = interpolateValue, + transform, + untransform, + unknown, + clamp = identity$6, + piecewise, + output, + input; + + function rescale() { + piecewise = Math.min(domain.length, range.length) > 2 ? polymap : bimap; + output = input = null; + return scale; + } + + function scale(x) { + return isNaN(x = +x) ? unknown : (output || (output = piecewise(domain.map(transform), range, interpolate)))(transform(clamp(x))); + } + + scale.invert = function(y) { + return clamp(untransform((input || (input = piecewise(range, domain.map(transform), interpolateNumber)))(y))); + }; + + scale.domain = function(_) { + return arguments.length ? (domain = map$3.call(_, number$2), clamp === identity$6 || (clamp = clamper(domain)), rescale()) : domain.slice(); + }; + + scale.range = function(_) { + return arguments.length ? (range = slice$5.call(_), rescale()) : range.slice(); + }; + + scale.rangeRound = function(_) { + return range = slice$5.call(_), interpolate = interpolateRound, rescale(); + }; + + scale.clamp = function(_) { + return arguments.length ? (clamp = _ ? clamper(domain) : identity$6, scale) : clamp !== identity$6; + }; + + scale.interpolate = function(_) { + return arguments.length ? (interpolate = _, rescale()) : interpolate; + }; + + scale.unknown = function(_) { + return arguments.length ? (unknown = _, scale) : unknown; + }; + + return function(t, u) { + transform = t, untransform = u; + return rescale(); + }; + } + + function continuous(transform, untransform) { + return transformer$1()(transform, untransform); + } + + function tickFormat(start, stop, count, specifier) { + var step = tickStep(start, stop, count), + precision; + specifier = formatSpecifier(specifier == null ? ",f" : specifier); + switch (specifier.type) { + case "s": { + var value = Math.max(Math.abs(start), Math.abs(stop)); + if (specifier.precision == null && !isNaN(precision = precisionPrefix(step, value))) specifier.precision = precision; + return formatPrefix(specifier, value); + } + case "": + case "e": + case "g": + case "p": + case "r": { + if (specifier.precision == null && !isNaN(precision = precisionRound(step, Math.max(Math.abs(start), Math.abs(stop))))) specifier.precision = precision - (specifier.type === "e"); + break; + } + case "f": + case "%": { + if (specifier.precision == null && !isNaN(precision = precisionFixed(step))) specifier.precision = precision - (specifier.type === "%") * 2; + break; + } + } + return format(specifier); + } + + function linearish(scale) { + var domain = scale.domain; + + scale.ticks = function(count) { + var d = domain(); + return ticks(d[0], d[d.length - 1], count == null ? 10 : count); + }; + + scale.tickFormat = function(count, specifier) { + var d = domain(); + return tickFormat(d[0], d[d.length - 1], count == null ? 10 : count, specifier); + }; + + scale.nice = function(count) { + if (count == null) count = 10; + + var d = domain(), + i0 = 0, + i1 = d.length - 1, + start = d[i0], + stop = d[i1], + step; + + if (stop < start) { + step = start, start = stop, stop = step; + step = i0, i0 = i1, i1 = step; + } + + step = tickIncrement(start, stop, count); + + if (step > 0) { + start = Math.floor(start / step) * step; + stop = Math.ceil(stop / step) * step; + step = tickIncrement(start, stop, count); + } else if (step < 0) { + start = Math.ceil(start * step) / step; + stop = Math.floor(stop * step) / step; + step = tickIncrement(start, stop, count); + } + + if (step > 0) { + d[i0] = Math.floor(start / step) * step; + d[i1] = Math.ceil(stop / step) * step; + domain(d); + } else if (step < 0) { + d[i0] = Math.ceil(start * step) / step; + d[i1] = Math.floor(stop * step) / step; + domain(d); + } + + return scale; + }; + + return scale; + } + + function linear$2() { + var scale = continuous(identity$6, identity$6); + + scale.copy = function() { + return copy(scale, linear$2()); + }; + + initRange.apply(scale, arguments); + + return linearish(scale); + } + + function identity$7(domain) { + var unknown; + + function scale(x) { + return isNaN(x = +x) ? unknown : x; + } + + scale.invert = scale; + + scale.domain = scale.range = function(_) { + return arguments.length ? (domain = map$3.call(_, number$2), scale) : domain.slice(); + }; + + scale.unknown = function(_) { + return arguments.length ? (unknown = _, scale) : unknown; + }; + + scale.copy = function() { + return identity$7(domain).unknown(unknown); + }; + + domain = arguments.length ? map$3.call(domain, number$2) : [0, 1]; + + return linearish(scale); + } + + function nice(domain, interval) { + domain = domain.slice(); + + var i0 = 0, + i1 = domain.length - 1, + x0 = domain[i0], + x1 = domain[i1], + t; + + if (x1 < x0) { + t = i0, i0 = i1, i1 = t; + t = x0, x0 = x1, x1 = t; + } + + domain[i0] = interval.floor(x0); + domain[i1] = interval.ceil(x1); + return domain; + } + + function transformLog(x) { + return Math.log(x); + } + + function transformExp(x) { + return Math.exp(x); + } + + function transformLogn(x) { + return -Math.log(-x); + } + + function transformExpn(x) { + return -Math.exp(-x); + } + + function pow10(x) { + return isFinite(x) ? +("1e" + x) : x < 0 ? 0 : x; + } + + function powp(base) { + return base === 10 ? pow10 + : base === Math.E ? Math.exp + : function(x) { return Math.pow(base, x); }; + } + + function logp(base) { + return base === Math.E ? Math.log + : base === 10 && Math.log10 + || base === 2 && Math.log2 + || (base = Math.log(base), function(x) { return Math.log(x) / base; }); + } + + function reflect(f) { + return function(x) { + return -f(-x); + }; + } + + function loggish(transform) { + var scale = transform(transformLog, transformExp), + domain = scale.domain, + base = 10, + logs, + pows; + + function rescale() { + logs = logp(base), pows = powp(base); + if (domain()[0] < 0) { + logs = reflect(logs), pows = reflect(pows); + transform(transformLogn, transformExpn); + } else { + transform(transformLog, transformExp); + } + return scale; + } + + scale.base = function(_) { + return arguments.length ? (base = +_, rescale()) : base; + }; + + scale.domain = function(_) { + return arguments.length ? (domain(_), rescale()) : domain(); + }; + + scale.ticks = function(count) { + var d = domain(), + u = d[0], + v = d[d.length - 1], + r; + + if (r = v < u) i = u, u = v, v = i; + + var i = logs(u), + j = logs(v), + p, + k, + t, + n = count == null ? 10 : +count, + z = []; + + if (!(base % 1) && j - i < n) { + i = Math.round(i) - 1, j = Math.round(j) + 1; + if (u > 0) for (; i < j; ++i) { + for (k = 1, p = pows(i); k < base; ++k) { + t = p * k; + if (t < u) continue; + if (t > v) break; + z.push(t); + } + } else for (; i < j; ++i) { + for (k = base - 1, p = pows(i); k >= 1; --k) { + t = p * k; + if (t < u) continue; + if (t > v) break; + z.push(t); + } + } + } else { + z = ticks(i, j, Math.min(j - i, n)).map(pows); + } + + return r ? z.reverse() : z; + }; + + scale.tickFormat = function(count, specifier) { + if (specifier == null) specifier = base === 10 ? ".0e" : ","; + if (typeof specifier !== "function") specifier = format(specifier); + if (count === Infinity) return specifier; + if (count == null) count = 10; + var k = Math.max(1, base * count / scale.ticks().length); // TODO fast estimate? + return function(d) { + var i = d / pows(Math.round(logs(d))); + if (i * base < base - 0.5) i *= base; + return i <= k ? specifier(d) : ""; + }; + }; + + scale.nice = function() { + return domain(nice(domain(), { + floor: function(x) { return pows(Math.floor(logs(x))); }, + ceil: function(x) { return pows(Math.ceil(logs(x))); } + })); + }; + + return scale; + } + + function log$1() { + var scale = loggish(transformer$1()).domain([1, 10]); + + scale.copy = function() { + return copy(scale, log$1()).base(scale.base()); + }; + + initRange.apply(scale, arguments); + + return scale; + } + + function transformSymlog(c) { + return function(x) { + return Math.sign(x) * Math.log1p(Math.abs(x / c)); + }; + } + + function transformSymexp(c) { + return function(x) { + return Math.sign(x) * Math.expm1(Math.abs(x)) * c; + }; + } + + function symlogish(transform) { + var c = 1, scale = transform(transformSymlog(c), transformSymexp(c)); + + scale.constant = function(_) { + return arguments.length ? transform(transformSymlog(c = +_), transformSymexp(c)) : c; + }; + + return linearish(scale); + } + + function symlog() { + var scale = symlogish(transformer$1()); + + scale.copy = function() { + return copy(scale, symlog()).constant(scale.constant()); + }; + + return initRange.apply(scale, arguments); + } + + function transformPow(exponent) { + return function(x) { + return x < 0 ? -Math.pow(-x, exponent) : Math.pow(x, exponent); + }; + } + + function transformSqrt(x) { + return x < 0 ? -Math.sqrt(-x) : Math.sqrt(x); + } + + function transformSquare(x) { + return x < 0 ? -x * x : x * x; + } + + function powish(transform) { + var scale = transform(identity$6, identity$6), + exponent = 1; + + function rescale() { + return exponent === 1 ? transform(identity$6, identity$6) + : exponent === 0.5 ? transform(transformSqrt, transformSquare) + : transform(transformPow(exponent), transformPow(1 / exponent)); + } + + scale.exponent = function(_) { + return arguments.length ? (exponent = +_, rescale()) : exponent; + }; + + return linearish(scale); + } + + function pow$1() { + var scale = powish(transformer$1()); + + scale.copy = function() { + return copy(scale, pow$1()).exponent(scale.exponent()); + }; + + initRange.apply(scale, arguments); + + return scale; + } + + function sqrt$1() { + return pow$1.apply(null, arguments).exponent(0.5); + } + + function quantile() { + var domain = [], + range = [], + thresholds = [], + unknown; + + function rescale() { + var i = 0, n = Math.max(1, range.length); + thresholds = new Array(n - 1); + while (++i < n) thresholds[i - 1] = threshold(domain, i / n); + return scale; + } + + function scale(x) { + return isNaN(x = +x) ? unknown : range[bisectRight(thresholds, x)]; + } + + scale.invertExtent = function(y) { + var i = range.indexOf(y); + return i < 0 ? [NaN, NaN] : [ + i > 0 ? thresholds[i - 1] : domain[0], + i < thresholds.length ? thresholds[i] : domain[domain.length - 1] + ]; + }; + + scale.domain = function(_) { + if (!arguments.length) return domain.slice(); + domain = []; + for (var i = 0, n = _.length, d; i < n; ++i) if (d = _[i], d != null && !isNaN(d = +d)) domain.push(d); + domain.sort(ascending); + return rescale(); + }; + + scale.range = function(_) { + return arguments.length ? (range = slice$5.call(_), rescale()) : range.slice(); + }; + + scale.unknown = function(_) { + return arguments.length ? (unknown = _, scale) : unknown; + }; + + scale.quantiles = function() { + return thresholds.slice(); + }; + + scale.copy = function() { + return quantile() + .domain(domain) + .range(range) + .unknown(unknown); + }; + + return initRange.apply(scale, arguments); + } + + function quantize$1() { + var x0 = 0, + x1 = 1, + n = 1, + domain = [0.5], + range = [0, 1], + unknown; + + function scale(x) { + return x <= x ? range[bisectRight(domain, x, 0, n)] : unknown; + } + + function rescale() { + var i = -1; + domain = new Array(n); + while (++i < n) domain[i] = ((i + 1) * x1 - (i - n) * x0) / (n + 1); + return scale; + } + + scale.domain = function(_) { + return arguments.length ? (x0 = +_[0], x1 = +_[1], rescale()) : [x0, x1]; + }; + + scale.range = function(_) { + return arguments.length ? (n = (range = slice$5.call(_)).length - 1, rescale()) : range.slice(); + }; + + scale.invertExtent = function(y) { + var i = range.indexOf(y); + return i < 0 ? [NaN, NaN] + : i < 1 ? [x0, domain[0]] + : i >= n ? [domain[n - 1], x1] + : [domain[i - 1], domain[i]]; + }; + + scale.unknown = function(_) { + return arguments.length ? (unknown = _, scale) : scale; + }; + + scale.thresholds = function() { + return domain.slice(); + }; + + scale.copy = function() { + return quantize$1() + .domain([x0, x1]) + .range(range) + .unknown(unknown); + }; + + return initRange.apply(linearish(scale), arguments); + } + + function threshold$1() { + var domain = [0.5], + range = [0, 1], + unknown, + n = 1; + + function scale(x) { + return x <= x ? range[bisectRight(domain, x, 0, n)] : unknown; + } + + scale.domain = function(_) { + return arguments.length ? (domain = slice$5.call(_), n = Math.min(domain.length, range.length - 1), scale) : domain.slice(); + }; + + scale.range = function(_) { + return arguments.length ? (range = slice$5.call(_), n = Math.min(domain.length, range.length - 1), scale) : range.slice(); + }; + + scale.invertExtent = function(y) { + var i = range.indexOf(y); + return [domain[i - 1], domain[i]]; + }; + + scale.unknown = function(_) { + return arguments.length ? (unknown = _, scale) : unknown; + }; + + scale.copy = function() { + return threshold$1() + .domain(domain) + .range(range) + .unknown(unknown); + }; + + return initRange.apply(scale, arguments); + } + + var t0$1 = new Date, + t1$1 = new Date; + + function newInterval(floori, offseti, count, field) { + + function interval(date) { + return floori(date = arguments.length === 0 ? new Date : new Date(+date)), date; + } + + interval.floor = function(date) { + return floori(date = new Date(+date)), date; + }; + + interval.ceil = function(date) { + return floori(date = new Date(date - 1)), offseti(date, 1), floori(date), date; + }; + + interval.round = function(date) { + var d0 = interval(date), + d1 = interval.ceil(date); + return date - d0 < d1 - date ? d0 : d1; + }; + + interval.offset = function(date, step) { + return offseti(date = new Date(+date), step == null ? 1 : Math.floor(step)), date; + }; + + interval.range = function(start, stop, step) { + var range = [], previous; + start = interval.ceil(start); + step = step == null ? 1 : Math.floor(step); + if (!(start < stop) || !(step > 0)) return range; // also handles Invalid Date + do range.push(previous = new Date(+start)), offseti(start, step), floori(start); + while (previous < start && start < stop); + return range; + }; + + interval.filter = function(test) { + return newInterval(function(date) { + if (date >= date) while (floori(date), !test(date)) date.setTime(date - 1); + }, function(date, step) { + if (date >= date) { + if (step < 0) while (++step <= 0) { + while (offseti(date, -1), !test(date)) {} // eslint-disable-line no-empty + } else while (--step >= 0) { + while (offseti(date, +1), !test(date)) {} // eslint-disable-line no-empty + } + } + }); + }; + + if (count) { + interval.count = function(start, end) { + t0$1.setTime(+start), t1$1.setTime(+end); + floori(t0$1), floori(t1$1); + return Math.floor(count(t0$1, t1$1)); + }; + + interval.every = function(step) { + step = Math.floor(step); + return !isFinite(step) || !(step > 0) ? null + : !(step > 1) ? interval + : interval.filter(field + ? function(d) { return field(d) % step === 0; } + : function(d) { return interval.count(0, d) % step === 0; }); + }; + } + + return interval; + } + + var millisecond = newInterval(function() { + // noop + }, function(date, step) { + date.setTime(+date + step); + }, function(start, end) { + return end - start; + }); + + // An optimized implementation for this simple case. + millisecond.every = function(k) { + k = Math.floor(k); + if (!isFinite(k) || !(k > 0)) return null; + if (!(k > 1)) return millisecond; + return newInterval(function(date) { + date.setTime(Math.floor(date / k) * k); + }, function(date, step) { + date.setTime(+date + step * k); + }, function(start, end) { + return (end - start) / k; + }); + }; + var milliseconds = millisecond.range; + + var durationSecond = 1e3; + var durationMinute = 6e4; + var durationHour = 36e5; + var durationDay = 864e5; + var durationWeek = 6048e5; + + var second = newInterval(function(date) { + date.setTime(date - date.getMilliseconds()); + }, function(date, step) { + date.setTime(+date + step * durationSecond); + }, function(start, end) { + return (end - start) / durationSecond; + }, function(date) { + return date.getUTCSeconds(); + }); + var seconds = second.range; + + var minute = newInterval(function(date) { + date.setTime(date - date.getMilliseconds() - date.getSeconds() * durationSecond); + }, function(date, step) { + date.setTime(+date + step * durationMinute); + }, function(start, end) { + return (end - start) / durationMinute; + }, function(date) { + return date.getMinutes(); + }); + var minutes = minute.range; + + var hour = newInterval(function(date) { + date.setTime(date - date.getMilliseconds() - date.getSeconds() * durationSecond - date.getMinutes() * durationMinute); + }, function(date, step) { + date.setTime(+date + step * durationHour); + }, function(start, end) { + return (end - start) / durationHour; + }, function(date) { + return date.getHours(); + }); + var hours = hour.range; + + var day = newInterval(function(date) { + date.setHours(0, 0, 0, 0); + }, function(date, step) { + date.setDate(date.getDate() + step); + }, function(start, end) { + return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationDay; + }, function(date) { + return date.getDate() - 1; + }); + var days = day.range; + + function weekday(i) { + return newInterval(function(date) { + date.setDate(date.getDate() - (date.getDay() + 7 - i) % 7); + date.setHours(0, 0, 0, 0); + }, function(date, step) { + date.setDate(date.getDate() + step * 7); + }, function(start, end) { + return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationWeek; + }); + } + + var sunday = weekday(0); + var monday = weekday(1); + var tuesday = weekday(2); + var wednesday = weekday(3); + var thursday = weekday(4); + var friday = weekday(5); + var saturday = weekday(6); + + var sundays = sunday.range; + var mondays = monday.range; + var tuesdays = tuesday.range; + var wednesdays = wednesday.range; + var thursdays = thursday.range; + var fridays = friday.range; + var saturdays = saturday.range; + + var month = newInterval(function(date) { + date.setDate(1); + date.setHours(0, 0, 0, 0); + }, function(date, step) { + date.setMonth(date.getMonth() + step); + }, function(start, end) { + return end.getMonth() - start.getMonth() + (end.getFullYear() - start.getFullYear()) * 12; + }, function(date) { + return date.getMonth(); + }); + var months = month.range; + + var year = newInterval(function(date) { + date.setMonth(0, 1); + date.setHours(0, 0, 0, 0); + }, function(date, step) { + date.setFullYear(date.getFullYear() + step); + }, function(start, end) { + return end.getFullYear() - start.getFullYear(); + }, function(date) { + return date.getFullYear(); + }); + + // An optimized implementation for this simple case. + year.every = function(k) { + return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function(date) { + date.setFullYear(Math.floor(date.getFullYear() / k) * k); + date.setMonth(0, 1); + date.setHours(0, 0, 0, 0); + }, function(date, step) { + date.setFullYear(date.getFullYear() + step * k); + }); + }; + var years = year.range; + + var utcMinute = newInterval(function(date) { + date.setUTCSeconds(0, 0); + }, function(date, step) { + date.setTime(+date + step * durationMinute); + }, function(start, end) { + return (end - start) / durationMinute; + }, function(date) { + return date.getUTCMinutes(); + }); + var utcMinutes = utcMinute.range; + + var utcHour = newInterval(function(date) { + date.setUTCMinutes(0, 0, 0); + }, function(date, step) { + date.setTime(+date + step * durationHour); + }, function(start, end) { + return (end - start) / durationHour; + }, function(date) { + return date.getUTCHours(); + }); + var utcHours = utcHour.range; + + var utcDay = newInterval(function(date) { + date.setUTCHours(0, 0, 0, 0); + }, function(date, step) { + date.setUTCDate(date.getUTCDate() + step); + }, function(start, end) { + return (end - start) / durationDay; + }, function(date) { + return date.getUTCDate() - 1; + }); + var utcDays = utcDay.range; + + function utcWeekday(i) { + return newInterval(function(date) { + date.setUTCDate(date.getUTCDate() - (date.getUTCDay() + 7 - i) % 7); + date.setUTCHours(0, 0, 0, 0); + }, function(date, step) { + date.setUTCDate(date.getUTCDate() + step * 7); + }, function(start, end) { + return (end - start) / durationWeek; + }); + } + + var utcSunday = utcWeekday(0); + var utcMonday = utcWeekday(1); + var utcTuesday = utcWeekday(2); + var utcWednesday = utcWeekday(3); + var utcThursday = utcWeekday(4); + var utcFriday = utcWeekday(5); + var utcSaturday = utcWeekday(6); + + var utcSundays = utcSunday.range; + var utcMondays = utcMonday.range; + var utcTuesdays = utcTuesday.range; + var utcWednesdays = utcWednesday.range; + var utcThursdays = utcThursday.range; + var utcFridays = utcFriday.range; + var utcSaturdays = utcSaturday.range; + + var utcMonth = newInterval(function(date) { + date.setUTCDate(1); + date.setUTCHours(0, 0, 0, 0); + }, function(date, step) { + date.setUTCMonth(date.getUTCMonth() + step); + }, function(start, end) { + return end.getUTCMonth() - start.getUTCMonth() + (end.getUTCFullYear() - start.getUTCFullYear()) * 12; + }, function(date) { + return date.getUTCMonth(); + }); + var utcMonths = utcMonth.range; + + var utcYear = newInterval(function(date) { + date.setUTCMonth(0, 1); + date.setUTCHours(0, 0, 0, 0); + }, function(date, step) { + date.setUTCFullYear(date.getUTCFullYear() + step); + }, function(start, end) { + return end.getUTCFullYear() - start.getUTCFullYear(); + }, function(date) { + return date.getUTCFullYear(); + }); + + // An optimized implementation for this simple case. + utcYear.every = function(k) { + return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function(date) { + date.setUTCFullYear(Math.floor(date.getUTCFullYear() / k) * k); + date.setUTCMonth(0, 1); + date.setUTCHours(0, 0, 0, 0); + }, function(date, step) { + date.setUTCFullYear(date.getUTCFullYear() + step * k); + }); + }; + var utcYears = utcYear.range; + + function localDate(d) { + if (0 <= d.y && d.y < 100) { + var date = new Date(-1, d.m, d.d, d.H, d.M, d.S, d.L); + date.setFullYear(d.y); + return date; + } + return new Date(d.y, d.m, d.d, d.H, d.M, d.S, d.L); + } + + function utcDate(d) { + if (0 <= d.y && d.y < 100) { + var date = new Date(Date.UTC(-1, d.m, d.d, d.H, d.M, d.S, d.L)); + date.setUTCFullYear(d.y); + return date; + } + return new Date(Date.UTC(d.y, d.m, d.d, d.H, d.M, d.S, d.L)); + } + + function newDate(y, m, d) { + return {y: y, m: m, d: d, H: 0, M: 0, S: 0, L: 0}; + } + + function formatLocale$1(locale) { + var locale_dateTime = locale.dateTime, + locale_date = locale.date, + locale_time = locale.time, + locale_periods = locale.periods, + locale_weekdays = locale.days, + locale_shortWeekdays = locale.shortDays, + locale_months = locale.months, + locale_shortMonths = locale.shortMonths; + + var periodRe = formatRe(locale_periods), + periodLookup = formatLookup(locale_periods), + weekdayRe = formatRe(locale_weekdays), + weekdayLookup = formatLookup(locale_weekdays), + shortWeekdayRe = formatRe(locale_shortWeekdays), + shortWeekdayLookup = formatLookup(locale_shortWeekdays), + monthRe = formatRe(locale_months), + monthLookup = formatLookup(locale_months), + shortMonthRe = formatRe(locale_shortMonths), + shortMonthLookup = formatLookup(locale_shortMonths); + + var formats = { + "a": formatShortWeekday, + "A": formatWeekday, + "b": formatShortMonth, + "B": formatMonth, + "c": null, + "d": formatDayOfMonth, + "e": formatDayOfMonth, + "f": formatMicroseconds, + "H": formatHour24, + "I": formatHour12, + "j": formatDayOfYear, + "L": formatMilliseconds, + "m": formatMonthNumber, + "M": formatMinutes, + "p": formatPeriod, + "q": formatQuarter, + "Q": formatUnixTimestamp, + "s": formatUnixTimestampSeconds, + "S": formatSeconds, + "u": formatWeekdayNumberMonday, + "U": formatWeekNumberSunday, + "V": formatWeekNumberISO, + "w": formatWeekdayNumberSunday, + "W": formatWeekNumberMonday, + "x": null, + "X": null, + "y": formatYear$1, + "Y": formatFullYear, + "Z": formatZone, + "%": formatLiteralPercent + }; + + var utcFormats = { + "a": formatUTCShortWeekday, + "A": formatUTCWeekday, + "b": formatUTCShortMonth, + "B": formatUTCMonth, + "c": null, + "d": formatUTCDayOfMonth, + "e": formatUTCDayOfMonth, + "f": formatUTCMicroseconds, + "H": formatUTCHour24, + "I": formatUTCHour12, + "j": formatUTCDayOfYear, + "L": formatUTCMilliseconds, + "m": formatUTCMonthNumber, + "M": formatUTCMinutes, + "p": formatUTCPeriod, + "q": formatUTCQuarter, + "Q": formatUnixTimestamp, + "s": formatUnixTimestampSeconds, + "S": formatUTCSeconds, + "u": formatUTCWeekdayNumberMonday, + "U": formatUTCWeekNumberSunday, + "V": formatUTCWeekNumberISO, + "w": formatUTCWeekdayNumberSunday, + "W": formatUTCWeekNumberMonday, + "x": null, + "X": null, + "y": formatUTCYear, + "Y": formatUTCFullYear, + "Z": formatUTCZone, + "%": formatLiteralPercent + }; + + var parses = { + "a": parseShortWeekday, + "A": parseWeekday, + "b": parseShortMonth, + "B": parseMonth, + "c": parseLocaleDateTime, + "d": parseDayOfMonth, + "e": parseDayOfMonth, + "f": parseMicroseconds, + "H": parseHour24, + "I": parseHour24, + "j": parseDayOfYear, + "L": parseMilliseconds, + "m": parseMonthNumber, + "M": parseMinutes, + "p": parsePeriod, + "q": parseQuarter, + "Q": parseUnixTimestamp, + "s": parseUnixTimestampSeconds, + "S": parseSeconds, + "u": parseWeekdayNumberMonday, + "U": parseWeekNumberSunday, + "V": parseWeekNumberISO, + "w": parseWeekdayNumberSunday, + "W": parseWeekNumberMonday, + "x": parseLocaleDate, + "X": parseLocaleTime, + "y": parseYear, + "Y": parseFullYear, + "Z": parseZone, + "%": parseLiteralPercent + }; + + // These recursive directive definitions must be deferred. + formats.x = newFormat(locale_date, formats); + formats.X = newFormat(locale_time, formats); + formats.c = newFormat(locale_dateTime, formats); + utcFormats.x = newFormat(locale_date, utcFormats); + utcFormats.X = newFormat(locale_time, utcFormats); + utcFormats.c = newFormat(locale_dateTime, utcFormats); + + function newFormat(specifier, formats) { + return function(date) { + var string = [], + i = -1, + j = 0, + n = specifier.length, + c, + pad, + format; + + if (!(date instanceof Date)) date = new Date(+date); + + while (++i < n) { + if (specifier.charCodeAt(i) === 37) { + string.push(specifier.slice(j, i)); + if ((pad = pads[c = specifier.charAt(++i)]) != null) c = specifier.charAt(++i); + else pad = c === "e" ? " " : "0"; + if (format = formats[c]) c = format(date, pad); + string.push(c); + j = i + 1; + } + } + + string.push(specifier.slice(j, i)); + return string.join(""); + }; + } + + function newParse(specifier, Z) { + return function(string) { + var d = newDate(1900, undefined, 1), + i = parseSpecifier(d, specifier, string += "", 0), + week, day$1; + if (i != string.length) return null; + + // If a UNIX timestamp is specified, return it. + if ("Q" in d) return new Date(d.Q); + if ("s" in d) return new Date(d.s * 1000 + ("L" in d ? d.L : 0)); + + // If this is utcParse, never use the local timezone. + if (Z && !("Z" in d)) d.Z = 0; + + // The am-pm flag is 0 for AM, and 1 for PM. + if ("p" in d) d.H = d.H % 12 + d.p * 12; + + // If the month was not specified, inherit from the quarter. + if (d.m === undefined) d.m = "q" in d ? d.q : 0; + + // Convert day-of-week and week-of-year to day-of-year. + if ("V" in d) { + if (d.V < 1 || d.V > 53) return null; + if (!("w" in d)) d.w = 1; + if ("Z" in d) { + week = utcDate(newDate(d.y, 0, 1)), day$1 = week.getUTCDay(); + week = day$1 > 4 || day$1 === 0 ? utcMonday.ceil(week) : utcMonday(week); + week = utcDay.offset(week, (d.V - 1) * 7); + d.y = week.getUTCFullYear(); + d.m = week.getUTCMonth(); + d.d = week.getUTCDate() + (d.w + 6) % 7; + } else { + week = localDate(newDate(d.y, 0, 1)), day$1 = week.getDay(); + week = day$1 > 4 || day$1 === 0 ? monday.ceil(week) : monday(week); + week = day.offset(week, (d.V - 1) * 7); + d.y = week.getFullYear(); + d.m = week.getMonth(); + d.d = week.getDate() + (d.w + 6) % 7; + } + } else if ("W" in d || "U" in d) { + if (!("w" in d)) d.w = "u" in d ? d.u % 7 : "W" in d ? 1 : 0; + day$1 = "Z" in d ? utcDate(newDate(d.y, 0, 1)).getUTCDay() : localDate(newDate(d.y, 0, 1)).getDay(); + d.m = 0; + d.d = "W" in d ? (d.w + 6) % 7 + d.W * 7 - (day$1 + 5) % 7 : d.w + d.U * 7 - (day$1 + 6) % 7; + } + + // If a time zone is specified, all fields are interpreted as UTC and then + // offset according to the specified time zone. + if ("Z" in d) { + d.H += d.Z / 100 | 0; + d.M += d.Z % 100; + return utcDate(d); + } + + // Otherwise, all fields are in local time. + return localDate(d); + }; + } + + function parseSpecifier(d, specifier, string, j) { + var i = 0, + n = specifier.length, + m = string.length, + c, + parse; + + while (i < n) { + if (j >= m) return -1; + c = specifier.charCodeAt(i++); + if (c === 37) { + c = specifier.charAt(i++); + parse = parses[c in pads ? specifier.charAt(i++) : c]; + if (!parse || ((j = parse(d, string, j)) < 0)) return -1; + } else if (c != string.charCodeAt(j++)) { + return -1; + } + } + + return j; + } + + function parsePeriod(d, string, i) { + var n = periodRe.exec(string.slice(i)); + return n ? (d.p = periodLookup[n[0].toLowerCase()], i + n[0].length) : -1; + } + + function parseShortWeekday(d, string, i) { + var n = shortWeekdayRe.exec(string.slice(i)); + return n ? (d.w = shortWeekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1; + } + + function parseWeekday(d, string, i) { + var n = weekdayRe.exec(string.slice(i)); + return n ? (d.w = weekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1; + } + + function parseShortMonth(d, string, i) { + var n = shortMonthRe.exec(string.slice(i)); + return n ? (d.m = shortMonthLookup[n[0].toLowerCase()], i + n[0].length) : -1; + } + + function parseMonth(d, string, i) { + var n = monthRe.exec(string.slice(i)); + return n ? (d.m = monthLookup[n[0].toLowerCase()], i + n[0].length) : -1; + } + + function parseLocaleDateTime(d, string, i) { + return parseSpecifier(d, locale_dateTime, string, i); + } + + function parseLocaleDate(d, string, i) { + return parseSpecifier(d, locale_date, string, i); + } + + function parseLocaleTime(d, string, i) { + return parseSpecifier(d, locale_time, string, i); + } + + function formatShortWeekday(d) { + return locale_shortWeekdays[d.getDay()]; + } + + function formatWeekday(d) { + return locale_weekdays[d.getDay()]; + } + + function formatShortMonth(d) { + return locale_shortMonths[d.getMonth()]; + } + + function formatMonth(d) { + return locale_months[d.getMonth()]; + } + + function formatPeriod(d) { + return locale_periods[+(d.getHours() >= 12)]; + } + + function formatQuarter(d) { + return 1 + ~~(d.getMonth() / 3); + } + + function formatUTCShortWeekday(d) { + return locale_shortWeekdays[d.getUTCDay()]; + } + + function formatUTCWeekday(d) { + return locale_weekdays[d.getUTCDay()]; + } + + function formatUTCShortMonth(d) { + return locale_shortMonths[d.getUTCMonth()]; + } + + function formatUTCMonth(d) { + return locale_months[d.getUTCMonth()]; + } + + function formatUTCPeriod(d) { + return locale_periods[+(d.getUTCHours() >= 12)]; + } + + function formatUTCQuarter(d) { + return 1 + ~~(d.getUTCMonth() / 3); + } + + return { + format: function(specifier) { + var f = newFormat(specifier += "", formats); + f.toString = function() { return specifier; }; + return f; + }, + parse: function(specifier) { + var p = newParse(specifier += "", false); + p.toString = function() { return specifier; }; + return p; + }, + utcFormat: function(specifier) { + var f = newFormat(specifier += "", utcFormats); + f.toString = function() { return specifier; }; + return f; + }, + utcParse: function(specifier) { + var p = newParse(specifier += "", true); + p.toString = function() { return specifier; }; + return p; + } + }; + } + + var pads = {"-": "", "_": " ", "0": "0"}, + numberRe = /^\s*\d+/, // note: ignores next directive + percentRe = /^%/, + requoteRe = /[\\^$*+?|[\]().{}]/g; + + function pad$1(value, fill, width) { + var sign = value < 0 ? "-" : "", + string = (sign ? -value : value) + "", + length = string.length; + return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string); + } + + function requote(s) { + return s.replace(requoteRe, "\\$&"); + } + + function formatRe(names) { + return new RegExp("^(?:" + names.map(requote).join("|") + ")", "i"); + } + + function formatLookup(names) { + var map = {}, i = -1, n = names.length; + while (++i < n) map[names[i].toLowerCase()] = i; + return map; + } + + function parseWeekdayNumberSunday(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 1)); + return n ? (d.w = +n[0], i + n[0].length) : -1; + } + + function parseWeekdayNumberMonday(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 1)); + return n ? (d.u = +n[0], i + n[0].length) : -1; + } + + function parseWeekNumberSunday(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 2)); + return n ? (d.U = +n[0], i + n[0].length) : -1; + } + + function parseWeekNumberISO(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 2)); + return n ? (d.V = +n[0], i + n[0].length) : -1; + } + + function parseWeekNumberMonday(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 2)); + return n ? (d.W = +n[0], i + n[0].length) : -1; + } + + function parseFullYear(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 4)); + return n ? (d.y = +n[0], i + n[0].length) : -1; + } + + function parseYear(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 2)); + return n ? (d.y = +n[0] + (+n[0] > 68 ? 1900 : 2000), i + n[0].length) : -1; + } + + function parseZone(d, string, i) { + var n = /^(Z)|([+-]\d\d)(?::?(\d\d))?/.exec(string.slice(i, i + 6)); + return n ? (d.Z = n[1] ? 0 : -(n[2] + (n[3] || "00")), i + n[0].length) : -1; + } + + function parseQuarter(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 1)); + return n ? (d.q = n[0] * 3 - 3, i + n[0].length) : -1; + } + + function parseMonthNumber(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 2)); + return n ? (d.m = n[0] - 1, i + n[0].length) : -1; + } + + function parseDayOfMonth(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 2)); + return n ? (d.d = +n[0], i + n[0].length) : -1; + } + + function parseDayOfYear(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 3)); + return n ? (d.m = 0, d.d = +n[0], i + n[0].length) : -1; + } + + function parseHour24(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 2)); + return n ? (d.H = +n[0], i + n[0].length) : -1; + } + + function parseMinutes(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 2)); + return n ? (d.M = +n[0], i + n[0].length) : -1; + } + + function parseSeconds(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 2)); + return n ? (d.S = +n[0], i + n[0].length) : -1; + } + + function parseMilliseconds(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 3)); + return n ? (d.L = +n[0], i + n[0].length) : -1; + } + + function parseMicroseconds(d, string, i) { + var n = numberRe.exec(string.slice(i, i + 6)); + return n ? (d.L = Math.floor(n[0] / 1000), i + n[0].length) : -1; + } + + function parseLiteralPercent(d, string, i) { + var n = percentRe.exec(string.slice(i, i + 1)); + return n ? i + n[0].length : -1; + } + + function parseUnixTimestamp(d, string, i) { + var n = numberRe.exec(string.slice(i)); + return n ? (d.Q = +n[0], i + n[0].length) : -1; + } + + function parseUnixTimestampSeconds(d, string, i) { + var n = numberRe.exec(string.slice(i)); + return n ? (d.s = +n[0], i + n[0].length) : -1; + } + + function formatDayOfMonth(d, p) { + return pad$1(d.getDate(), p, 2); + } + + function formatHour24(d, p) { + return pad$1(d.getHours(), p, 2); + } + + function formatHour12(d, p) { + return pad$1(d.getHours() % 12 || 12, p, 2); + } + + function formatDayOfYear(d, p) { + return pad$1(1 + day.count(year(d), d), p, 3); + } + + function formatMilliseconds(d, p) { + return pad$1(d.getMilliseconds(), p, 3); + } + + function formatMicroseconds(d, p) { + return formatMilliseconds(d, p) + "000"; + } + + function formatMonthNumber(d, p) { + return pad$1(d.getMonth() + 1, p, 2); + } + + function formatMinutes(d, p) { + return pad$1(d.getMinutes(), p, 2); + } + + function formatSeconds(d, p) { + return pad$1(d.getSeconds(), p, 2); + } + + function formatWeekdayNumberMonday(d) { + var day = d.getDay(); + return day === 0 ? 7 : day; + } + + function formatWeekNumberSunday(d, p) { + return pad$1(sunday.count(year(d) - 1, d), p, 2); + } + + function formatWeekNumberISO(d, p) { + var day = d.getDay(); + d = (day >= 4 || day === 0) ? thursday(d) : thursday.ceil(d); + return pad$1(thursday.count(year(d), d) + (year(d).getDay() === 4), p, 2); + } + + function formatWeekdayNumberSunday(d) { + return d.getDay(); + } + + function formatWeekNumberMonday(d, p) { + return pad$1(monday.count(year(d) - 1, d), p, 2); + } + + function formatYear$1(d, p) { + return pad$1(d.getFullYear() % 100, p, 2); + } + + function formatFullYear(d, p) { + return pad$1(d.getFullYear() % 10000, p, 4); + } + + function formatZone(d) { + var z = d.getTimezoneOffset(); + return (z > 0 ? "-" : (z *= -1, "+")) + + pad$1(z / 60 | 0, "0", 2) + + pad$1(z % 60, "0", 2); + } + + function formatUTCDayOfMonth(d, p) { + return pad$1(d.getUTCDate(), p, 2); + } + + function formatUTCHour24(d, p) { + return pad$1(d.getUTCHours(), p, 2); + } + + function formatUTCHour12(d, p) { + return pad$1(d.getUTCHours() % 12 || 12, p, 2); + } + + function formatUTCDayOfYear(d, p) { + return pad$1(1 + utcDay.count(utcYear(d), d), p, 3); + } + + function formatUTCMilliseconds(d, p) { + return pad$1(d.getUTCMilliseconds(), p, 3); + } + + function formatUTCMicroseconds(d, p) { + return formatUTCMilliseconds(d, p) + "000"; + } + + function formatUTCMonthNumber(d, p) { + return pad$1(d.getUTCMonth() + 1, p, 2); + } + + function formatUTCMinutes(d, p) { + return pad$1(d.getUTCMinutes(), p, 2); + } + + function formatUTCSeconds(d, p) { + return pad$1(d.getUTCSeconds(), p, 2); + } + + function formatUTCWeekdayNumberMonday(d) { + var dow = d.getUTCDay(); + return dow === 0 ? 7 : dow; + } + + function formatUTCWeekNumberSunday(d, p) { + return pad$1(utcSunday.count(utcYear(d) - 1, d), p, 2); + } + + function formatUTCWeekNumberISO(d, p) { + var day = d.getUTCDay(); + d = (day >= 4 || day === 0) ? utcThursday(d) : utcThursday.ceil(d); + return pad$1(utcThursday.count(utcYear(d), d) + (utcYear(d).getUTCDay() === 4), p, 2); + } + + function formatUTCWeekdayNumberSunday(d) { + return d.getUTCDay(); + } + + function formatUTCWeekNumberMonday(d, p) { + return pad$1(utcMonday.count(utcYear(d) - 1, d), p, 2); + } + + function formatUTCYear(d, p) { + return pad$1(d.getUTCFullYear() % 100, p, 2); + } + + function formatUTCFullYear(d, p) { + return pad$1(d.getUTCFullYear() % 10000, p, 4); + } + + function formatUTCZone() { + return "+0000"; + } + + function formatLiteralPercent() { + return "%"; + } + + function formatUnixTimestamp(d) { + return +d; + } + + function formatUnixTimestampSeconds(d) { + return Math.floor(+d / 1000); + } + + var locale$1; + var timeFormat; + var timeParse; + var utcFormat; + var utcParse; + + defaultLocale$1({ + dateTime: "%x, %X", + date: "%-m/%-d/%Y", + time: "%-I:%M:%S %p", + periods: ["AM", "PM"], + days: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"], + shortDays: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"], + months: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"], + shortMonths: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"] + }); + + function defaultLocale$1(definition) { + locale$1 = formatLocale$1(definition); + timeFormat = locale$1.format; + timeParse = locale$1.parse; + utcFormat = locale$1.utcFormat; + utcParse = locale$1.utcParse; + return locale$1; + } + + var isoSpecifier = "%Y-%m-%dT%H:%M:%S.%LZ"; + + function formatIsoNative(date) { + return date.toISOString(); + } + + var formatIso = Date.prototype.toISOString + ? formatIsoNative + : utcFormat(isoSpecifier); + + function parseIsoNative(string) { + var date = new Date(string); + return isNaN(date) ? null : date; + } + + var parseIso = +new Date("2000-01-01T00:00:00.000Z") + ? parseIsoNative + : utcParse(isoSpecifier); + + var durationSecond$1 = 1000, + durationMinute$1 = durationSecond$1 * 60, + durationHour$1 = durationMinute$1 * 60, + durationDay$1 = durationHour$1 * 24, + durationWeek$1 = durationDay$1 * 7, + durationMonth = durationDay$1 * 30, + durationYear = durationDay$1 * 365; + + function date$1(t) { + return new Date(t); + } + + function number$3(t) { + return t instanceof Date ? +t : +new Date(+t); + } + + function calendar(year, month, week, day, hour, minute, second, millisecond, format) { + var scale = continuous(identity$6, identity$6), + invert = scale.invert, + domain = scale.domain; + + var formatMillisecond = format(".%L"), + formatSecond = format(":%S"), + formatMinute = format("%I:%M"), + formatHour = format("%I %p"), + formatDay = format("%a %d"), + formatWeek = format("%b %d"), + formatMonth = format("%B"), + formatYear = format("%Y"); + + var tickIntervals = [ + [second, 1, durationSecond$1], + [second, 5, 5 * durationSecond$1], + [second, 15, 15 * durationSecond$1], + [second, 30, 30 * durationSecond$1], + [minute, 1, durationMinute$1], + [minute, 5, 5 * durationMinute$1], + [minute, 15, 15 * durationMinute$1], + [minute, 30, 30 * durationMinute$1], + [ hour, 1, durationHour$1 ], + [ hour, 3, 3 * durationHour$1 ], + [ hour, 6, 6 * durationHour$1 ], + [ hour, 12, 12 * durationHour$1 ], + [ day, 1, durationDay$1 ], + [ day, 2, 2 * durationDay$1 ], + [ week, 1, durationWeek$1 ], + [ month, 1, durationMonth ], + [ month, 3, 3 * durationMonth ], + [ year, 1, durationYear ] + ]; + + function tickFormat(date) { + return (second(date) < date ? formatMillisecond + : minute(date) < date ? formatSecond + : hour(date) < date ? formatMinute + : day(date) < date ? formatHour + : month(date) < date ? (week(date) < date ? formatDay : formatWeek) + : year(date) < date ? formatMonth + : formatYear)(date); + } + + function tickInterval(interval, start, stop, step) { + if (interval == null) interval = 10; + + // If a desired tick count is specified, pick a reasonable tick interval + // based on the extent of the domain and a rough estimate of tick size. + // Otherwise, assume interval is already a time interval and use it. + if (typeof interval === "number") { + var target = Math.abs(stop - start) / interval, + i = bisector(function(i) { return i[2]; }).right(tickIntervals, target); + if (i === tickIntervals.length) { + step = tickStep(start / durationYear, stop / durationYear, interval); + interval = year; + } else if (i) { + i = tickIntervals[target / tickIntervals[i - 1][2] < tickIntervals[i][2] / target ? i - 1 : i]; + step = i[1]; + interval = i[0]; + } else { + step = Math.max(tickStep(start, stop, interval), 1); + interval = millisecond; + } + } + + return step == null ? interval : interval.every(step); + } + + scale.invert = function(y) { + return new Date(invert(y)); + }; + + scale.domain = function(_) { + return arguments.length ? domain(map$3.call(_, number$3)) : domain().map(date$1); + }; + + scale.ticks = function(interval, step) { + var d = domain(), + t0 = d[0], + t1 = d[d.length - 1], + r = t1 < t0, + t; + if (r) t = t0, t0 = t1, t1 = t; + t = tickInterval(interval, t0, t1, step); + t = t ? t.range(t0, t1 + 1) : []; // inclusive stop + return r ? t.reverse() : t; + }; + + scale.tickFormat = function(count, specifier) { + return specifier == null ? tickFormat : format(specifier); + }; + + scale.nice = function(interval, step) { + var d = domain(); + return (interval = tickInterval(interval, d[0], d[d.length - 1], step)) + ? domain(nice(d, interval)) + : scale; + }; + + scale.copy = function() { + return copy(scale, calendar(year, month, week, day, hour, minute, second, millisecond, format)); + }; + + return scale; + } + + function time() { + return initRange.apply(calendar(year, month, sunday, day, hour, minute, second, millisecond, timeFormat).domain([new Date(2000, 0, 1), new Date(2000, 0, 2)]), arguments); + } + + function utcTime() { + return initRange.apply(calendar(utcYear, utcMonth, utcSunday, utcDay, utcHour, utcMinute, second, millisecond, utcFormat).domain([Date.UTC(2000, 0, 1), Date.UTC(2000, 0, 2)]), arguments); + } + + function transformer$2() { + var x0 = 0, + x1 = 1, + t0, + t1, + k10, + transform, + interpolator = identity$6, + clamp = false, + unknown; + + function scale(x) { + return isNaN(x = +x) ? unknown : interpolator(k10 === 0 ? 0.5 : (x = (transform(x) - t0) * k10, clamp ? Math.max(0, Math.min(1, x)) : x)); + } + + scale.domain = function(_) { + return arguments.length ? (t0 = transform(x0 = +_[0]), t1 = transform(x1 = +_[1]), k10 = t0 === t1 ? 0 : 1 / (t1 - t0), scale) : [x0, x1]; + }; + + scale.clamp = function(_) { + return arguments.length ? (clamp = !!_, scale) : clamp; + }; + + scale.interpolator = function(_) { + return arguments.length ? (interpolator = _, scale) : interpolator; + }; + + scale.unknown = function(_) { + return arguments.length ? (unknown = _, scale) : unknown; + }; + + return function(t) { + transform = t, t0 = t(x0), t1 = t(x1), k10 = t0 === t1 ? 0 : 1 / (t1 - t0); + return scale; + }; + } + + function copy$1(source, target) { + return target + .domain(source.domain()) + .interpolator(source.interpolator()) + .clamp(source.clamp()) + .unknown(source.unknown()); + } + + function sequential() { + var scale = linearish(transformer$2()(identity$6)); + + scale.copy = function() { + return copy$1(scale, sequential()); + }; + + return initInterpolator.apply(scale, arguments); + } + + function sequentialLog() { + var scale = loggish(transformer$2()).domain([1, 10]); + + scale.copy = function() { + return copy$1(scale, sequentialLog()).base(scale.base()); + }; + + return initInterpolator.apply(scale, arguments); + } + + function sequentialSymlog() { + var scale = symlogish(transformer$2()); + + scale.copy = function() { + return copy$1(scale, sequentialSymlog()).constant(scale.constant()); + }; + + return initInterpolator.apply(scale, arguments); + } + + function sequentialPow() { + var scale = powish(transformer$2()); + + scale.copy = function() { + return copy$1(scale, sequentialPow()).exponent(scale.exponent()); + }; + + return initInterpolator.apply(scale, arguments); + } + + function sequentialSqrt() { + return sequentialPow.apply(null, arguments).exponent(0.5); + } + + function sequentialQuantile() { + var domain = [], + interpolator = identity$6; + + function scale(x) { + if (!isNaN(x = +x)) return interpolator((bisectRight(domain, x) - 1) / (domain.length - 1)); + } + + scale.domain = function(_) { + if (!arguments.length) return domain.slice(); + domain = []; + for (var i = 0, n = _.length, d; i < n; ++i) if (d = _[i], d != null && !isNaN(d = +d)) domain.push(d); + domain.sort(ascending); + return scale; + }; + + scale.interpolator = function(_) { + return arguments.length ? (interpolator = _, scale) : interpolator; + }; + + scale.copy = function() { + return sequentialQuantile(interpolator).domain(domain); + }; + + return initInterpolator.apply(scale, arguments); + } + + function transformer$3() { + var x0 = 0, + x1 = 0.5, + x2 = 1, + t0, + t1, + t2, + k10, + k21, + interpolator = identity$6, + transform, + clamp = false, + unknown; + + function scale(x) { + return isNaN(x = +x) ? unknown : (x = 0.5 + ((x = +transform(x)) - t1) * (x < t1 ? k10 : k21), interpolator(clamp ? Math.max(0, Math.min(1, x)) : x)); + } + + scale.domain = function(_) { + return arguments.length ? (t0 = transform(x0 = +_[0]), t1 = transform(x1 = +_[1]), t2 = transform(x2 = +_[2]), k10 = t0 === t1 ? 0 : 0.5 / (t1 - t0), k21 = t1 === t2 ? 0 : 0.5 / (t2 - t1), scale) : [x0, x1, x2]; + }; + + scale.clamp = function(_) { + return arguments.length ? (clamp = !!_, scale) : clamp; + }; + + scale.interpolator = function(_) { + return arguments.length ? (interpolator = _, scale) : interpolator; + }; + + scale.unknown = function(_) { + return arguments.length ? (unknown = _, scale) : unknown; + }; + + return function(t) { + transform = t, t0 = t(x0), t1 = t(x1), t2 = t(x2), k10 = t0 === t1 ? 0 : 0.5 / (t1 - t0), k21 = t1 === t2 ? 0 : 0.5 / (t2 - t1); + return scale; + }; + } + + function diverging() { + var scale = linearish(transformer$3()(identity$6)); + + scale.copy = function() { + return copy$1(scale, diverging()); + }; + + return initInterpolator.apply(scale, arguments); + } + + function divergingLog() { + var scale = loggish(transformer$3()).domain([0.1, 1, 10]); + + scale.copy = function() { + return copy$1(scale, divergingLog()).base(scale.base()); + }; + + return initInterpolator.apply(scale, arguments); + } + + function divergingSymlog() { + var scale = symlogish(transformer$3()); + + scale.copy = function() { + return copy$1(scale, divergingSymlog()).constant(scale.constant()); + }; + + return initInterpolator.apply(scale, arguments); + } + + function divergingPow() { + var scale = powish(transformer$3()); + + scale.copy = function() { + return copy$1(scale, divergingPow()).exponent(scale.exponent()); + }; + + return initInterpolator.apply(scale, arguments); + } + + function divergingSqrt() { + return divergingPow.apply(null, arguments).exponent(0.5); + } + + function colors(specifier) { + var n = specifier.length / 6 | 0, colors = new Array(n), i = 0; + while (i < n) colors[i] = "#" + specifier.slice(i * 6, ++i * 6); + return colors; + } + + var category10 = colors("1f77b4ff7f0e2ca02cd627289467bd8c564be377c27f7f7fbcbd2217becf"); + + var Accent = colors("7fc97fbeaed4fdc086ffff99386cb0f0027fbf5b17666666"); + + var Dark2 = colors("1b9e77d95f027570b3e7298a66a61ee6ab02a6761d666666"); + + var Paired = colors("a6cee31f78b4b2df8a33a02cfb9a99e31a1cfdbf6fff7f00cab2d66a3d9affff99b15928"); + + var Pastel1 = colors("fbb4aeb3cde3ccebc5decbe4fed9a6ffffcce5d8bdfddaecf2f2f2"); + + var Pastel2 = colors("b3e2cdfdcdaccbd5e8f4cae4e6f5c9fff2aef1e2cccccccc"); + + var Set1 = colors("e41a1c377eb84daf4a984ea3ff7f00ffff33a65628f781bf999999"); + + var Set2 = colors("66c2a5fc8d628da0cbe78ac3a6d854ffd92fe5c494b3b3b3"); + + var Set3 = colors("8dd3c7ffffb3bebadafb807280b1d3fdb462b3de69fccde5d9d9d9bc80bdccebc5ffed6f"); + + var Tableau10 = colors("4e79a7f28e2ce1575976b7b259a14fedc949af7aa1ff9da79c755fbab0ab"); + + function ramp(scheme) { + return rgbBasis(scheme[scheme.length - 1]); + } + + var scheme = new Array(3).concat( + "d8b365f5f5f55ab4ac", + "a6611adfc27d80cdc1018571", + "a6611adfc27df5f5f580cdc1018571", + "8c510ad8b365f6e8c3c7eae55ab4ac01665e", + "8c510ad8b365f6e8c3f5f5f5c7eae55ab4ac01665e", + "8c510abf812ddfc27df6e8c3c7eae580cdc135978f01665e", + "8c510abf812ddfc27df6e8c3f5f5f5c7eae580cdc135978f01665e", + "5430058c510abf812ddfc27df6e8c3c7eae580cdc135978f01665e003c30", + "5430058c510abf812ddfc27df6e8c3f5f5f5c7eae580cdc135978f01665e003c30" + ).map(colors); + + var BrBG = ramp(scheme); + + var scheme$1 = new Array(3).concat( + "af8dc3f7f7f77fbf7b", + "7b3294c2a5cfa6dba0008837", + "7b3294c2a5cff7f7f7a6dba0008837", + "762a83af8dc3e7d4e8d9f0d37fbf7b1b7837", + "762a83af8dc3e7d4e8f7f7f7d9f0d37fbf7b1b7837", + "762a839970abc2a5cfe7d4e8d9f0d3a6dba05aae611b7837", + "762a839970abc2a5cfe7d4e8f7f7f7d9f0d3a6dba05aae611b7837", + "40004b762a839970abc2a5cfe7d4e8d9f0d3a6dba05aae611b783700441b", + "40004b762a839970abc2a5cfe7d4e8f7f7f7d9f0d3a6dba05aae611b783700441b" + ).map(colors); + + var PRGn = ramp(scheme$1); + + var scheme$2 = new Array(3).concat( + "e9a3c9f7f7f7a1d76a", + "d01c8bf1b6dab8e1864dac26", + "d01c8bf1b6daf7f7f7b8e1864dac26", + "c51b7de9a3c9fde0efe6f5d0a1d76a4d9221", + "c51b7de9a3c9fde0eff7f7f7e6f5d0a1d76a4d9221", + "c51b7dde77aef1b6dafde0efe6f5d0b8e1867fbc414d9221", + "c51b7dde77aef1b6dafde0eff7f7f7e6f5d0b8e1867fbc414d9221", + "8e0152c51b7dde77aef1b6dafde0efe6f5d0b8e1867fbc414d9221276419", + "8e0152c51b7dde77aef1b6dafde0eff7f7f7e6f5d0b8e1867fbc414d9221276419" + ).map(colors); + + var PiYG = ramp(scheme$2); + + var scheme$3 = new Array(3).concat( + "998ec3f7f7f7f1a340", + "5e3c99b2abd2fdb863e66101", + "5e3c99b2abd2f7f7f7fdb863e66101", + "542788998ec3d8daebfee0b6f1a340b35806", + "542788998ec3d8daebf7f7f7fee0b6f1a340b35806", + "5427888073acb2abd2d8daebfee0b6fdb863e08214b35806", + "5427888073acb2abd2d8daebf7f7f7fee0b6fdb863e08214b35806", + "2d004b5427888073acb2abd2d8daebfee0b6fdb863e08214b358067f3b08", + "2d004b5427888073acb2abd2d8daebf7f7f7fee0b6fdb863e08214b358067f3b08" + ).map(colors); + + var PuOr = ramp(scheme$3); + + var scheme$4 = new Array(3).concat( + "ef8a62f7f7f767a9cf", + "ca0020f4a58292c5de0571b0", + "ca0020f4a582f7f7f792c5de0571b0", + "b2182bef8a62fddbc7d1e5f067a9cf2166ac", + "b2182bef8a62fddbc7f7f7f7d1e5f067a9cf2166ac", + "b2182bd6604df4a582fddbc7d1e5f092c5de4393c32166ac", + "b2182bd6604df4a582fddbc7f7f7f7d1e5f092c5de4393c32166ac", + "67001fb2182bd6604df4a582fddbc7d1e5f092c5de4393c32166ac053061", + "67001fb2182bd6604df4a582fddbc7f7f7f7d1e5f092c5de4393c32166ac053061" + ).map(colors); + + var RdBu = ramp(scheme$4); + + var scheme$5 = new Array(3).concat( + "ef8a62ffffff999999", + "ca0020f4a582bababa404040", + "ca0020f4a582ffffffbababa404040", + "b2182bef8a62fddbc7e0e0e09999994d4d4d", + "b2182bef8a62fddbc7ffffffe0e0e09999994d4d4d", + "b2182bd6604df4a582fddbc7e0e0e0bababa8787874d4d4d", + "b2182bd6604df4a582fddbc7ffffffe0e0e0bababa8787874d4d4d", + "67001fb2182bd6604df4a582fddbc7e0e0e0bababa8787874d4d4d1a1a1a", + "67001fb2182bd6604df4a582fddbc7ffffffe0e0e0bababa8787874d4d4d1a1a1a" + ).map(colors); + + var RdGy = ramp(scheme$5); + + var scheme$6 = new Array(3).concat( + "fc8d59ffffbf91bfdb", + "d7191cfdae61abd9e92c7bb6", + "d7191cfdae61ffffbfabd9e92c7bb6", + "d73027fc8d59fee090e0f3f891bfdb4575b4", + "d73027fc8d59fee090ffffbfe0f3f891bfdb4575b4", + "d73027f46d43fdae61fee090e0f3f8abd9e974add14575b4", + "d73027f46d43fdae61fee090ffffbfe0f3f8abd9e974add14575b4", + "a50026d73027f46d43fdae61fee090e0f3f8abd9e974add14575b4313695", + "a50026d73027f46d43fdae61fee090ffffbfe0f3f8abd9e974add14575b4313695" + ).map(colors); + + var RdYlBu = ramp(scheme$6); + + var scheme$7 = new Array(3).concat( + "fc8d59ffffbf91cf60", + "d7191cfdae61a6d96a1a9641", + "d7191cfdae61ffffbfa6d96a1a9641", + "d73027fc8d59fee08bd9ef8b91cf601a9850", + "d73027fc8d59fee08bffffbfd9ef8b91cf601a9850", + "d73027f46d43fdae61fee08bd9ef8ba6d96a66bd631a9850", + "d73027f46d43fdae61fee08bffffbfd9ef8ba6d96a66bd631a9850", + "a50026d73027f46d43fdae61fee08bd9ef8ba6d96a66bd631a9850006837", + "a50026d73027f46d43fdae61fee08bffffbfd9ef8ba6d96a66bd631a9850006837" + ).map(colors); + + var RdYlGn = ramp(scheme$7); + + var scheme$8 = new Array(3).concat( + "fc8d59ffffbf99d594", + "d7191cfdae61abdda42b83ba", + "d7191cfdae61ffffbfabdda42b83ba", + "d53e4ffc8d59fee08be6f59899d5943288bd", + "d53e4ffc8d59fee08bffffbfe6f59899d5943288bd", + "d53e4ff46d43fdae61fee08be6f598abdda466c2a53288bd", + "d53e4ff46d43fdae61fee08bffffbfe6f598abdda466c2a53288bd", + "9e0142d53e4ff46d43fdae61fee08be6f598abdda466c2a53288bd5e4fa2", + "9e0142d53e4ff46d43fdae61fee08bffffbfe6f598abdda466c2a53288bd5e4fa2" + ).map(colors); + + var Spectral = ramp(scheme$8); + + var scheme$9 = new Array(3).concat( + "e5f5f999d8c92ca25f", + "edf8fbb2e2e266c2a4238b45", + "edf8fbb2e2e266c2a42ca25f006d2c", + "edf8fbccece699d8c966c2a42ca25f006d2c", + "edf8fbccece699d8c966c2a441ae76238b45005824", + "f7fcfde5f5f9ccece699d8c966c2a441ae76238b45005824", + "f7fcfde5f5f9ccece699d8c966c2a441ae76238b45006d2c00441b" + ).map(colors); + + var BuGn = ramp(scheme$9); + + var scheme$a = new Array(3).concat( + "e0ecf49ebcda8856a7", + "edf8fbb3cde38c96c688419d", + "edf8fbb3cde38c96c68856a7810f7c", + "edf8fbbfd3e69ebcda8c96c68856a7810f7c", + "edf8fbbfd3e69ebcda8c96c68c6bb188419d6e016b", + "f7fcfde0ecf4bfd3e69ebcda8c96c68c6bb188419d6e016b", + "f7fcfde0ecf4bfd3e69ebcda8c96c68c6bb188419d810f7c4d004b" + ).map(colors); + + var BuPu = ramp(scheme$a); + + var scheme$b = new Array(3).concat( + "e0f3dba8ddb543a2ca", + "f0f9e8bae4bc7bccc42b8cbe", + "f0f9e8bae4bc7bccc443a2ca0868ac", + "f0f9e8ccebc5a8ddb57bccc443a2ca0868ac", + "f0f9e8ccebc5a8ddb57bccc44eb3d32b8cbe08589e", + "f7fcf0e0f3dbccebc5a8ddb57bccc44eb3d32b8cbe08589e", + "f7fcf0e0f3dbccebc5a8ddb57bccc44eb3d32b8cbe0868ac084081" + ).map(colors); + + var GnBu = ramp(scheme$b); + + var scheme$c = new Array(3).concat( + "fee8c8fdbb84e34a33", + "fef0d9fdcc8afc8d59d7301f", + "fef0d9fdcc8afc8d59e34a33b30000", + "fef0d9fdd49efdbb84fc8d59e34a33b30000", + "fef0d9fdd49efdbb84fc8d59ef6548d7301f990000", + "fff7ecfee8c8fdd49efdbb84fc8d59ef6548d7301f990000", + "fff7ecfee8c8fdd49efdbb84fc8d59ef6548d7301fb300007f0000" + ).map(colors); + + var OrRd = ramp(scheme$c); + + var scheme$d = new Array(3).concat( + "ece2f0a6bddb1c9099", + "f6eff7bdc9e167a9cf02818a", + "f6eff7bdc9e167a9cf1c9099016c59", + "f6eff7d0d1e6a6bddb67a9cf1c9099016c59", + "f6eff7d0d1e6a6bddb67a9cf3690c002818a016450", + "fff7fbece2f0d0d1e6a6bddb67a9cf3690c002818a016450", + "fff7fbece2f0d0d1e6a6bddb67a9cf3690c002818a016c59014636" + ).map(colors); + + var PuBuGn = ramp(scheme$d); + + var scheme$e = new Array(3).concat( + "ece7f2a6bddb2b8cbe", + "f1eef6bdc9e174a9cf0570b0", + "f1eef6bdc9e174a9cf2b8cbe045a8d", + "f1eef6d0d1e6a6bddb74a9cf2b8cbe045a8d", + "f1eef6d0d1e6a6bddb74a9cf3690c00570b0034e7b", + "fff7fbece7f2d0d1e6a6bddb74a9cf3690c00570b0034e7b", + "fff7fbece7f2d0d1e6a6bddb74a9cf3690c00570b0045a8d023858" + ).map(colors); + + var PuBu = ramp(scheme$e); + + var scheme$f = new Array(3).concat( + "e7e1efc994c7dd1c77", + "f1eef6d7b5d8df65b0ce1256", + "f1eef6d7b5d8df65b0dd1c77980043", + "f1eef6d4b9dac994c7df65b0dd1c77980043", + "f1eef6d4b9dac994c7df65b0e7298ace125691003f", + "f7f4f9e7e1efd4b9dac994c7df65b0e7298ace125691003f", + "f7f4f9e7e1efd4b9dac994c7df65b0e7298ace125698004367001f" + ).map(colors); + + var PuRd = ramp(scheme$f); + + var scheme$g = new Array(3).concat( + "fde0ddfa9fb5c51b8a", + "feebe2fbb4b9f768a1ae017e", + "feebe2fbb4b9f768a1c51b8a7a0177", + "feebe2fcc5c0fa9fb5f768a1c51b8a7a0177", + "feebe2fcc5c0fa9fb5f768a1dd3497ae017e7a0177", + "fff7f3fde0ddfcc5c0fa9fb5f768a1dd3497ae017e7a0177", + "fff7f3fde0ddfcc5c0fa9fb5f768a1dd3497ae017e7a017749006a" + ).map(colors); + + var RdPu = ramp(scheme$g); + + var scheme$h = new Array(3).concat( + "edf8b17fcdbb2c7fb8", + "ffffcca1dab441b6c4225ea8", + "ffffcca1dab441b6c42c7fb8253494", + "ffffccc7e9b47fcdbb41b6c42c7fb8253494", + "ffffccc7e9b47fcdbb41b6c41d91c0225ea80c2c84", + "ffffd9edf8b1c7e9b47fcdbb41b6c41d91c0225ea80c2c84", + "ffffd9edf8b1c7e9b47fcdbb41b6c41d91c0225ea8253494081d58" + ).map(colors); + + var YlGnBu = ramp(scheme$h); + + var scheme$i = new Array(3).concat( + "f7fcb9addd8e31a354", + "ffffccc2e69978c679238443", + "ffffccc2e69978c67931a354006837", + "ffffccd9f0a3addd8e78c67931a354006837", + "ffffccd9f0a3addd8e78c67941ab5d238443005a32", + "ffffe5f7fcb9d9f0a3addd8e78c67941ab5d238443005a32", + "ffffe5f7fcb9d9f0a3addd8e78c67941ab5d238443006837004529" + ).map(colors); + + var YlGn = ramp(scheme$i); + + var scheme$j = new Array(3).concat( + "fff7bcfec44fd95f0e", + "ffffd4fed98efe9929cc4c02", + "ffffd4fed98efe9929d95f0e993404", + "ffffd4fee391fec44ffe9929d95f0e993404", + "ffffd4fee391fec44ffe9929ec7014cc4c028c2d04", + "ffffe5fff7bcfee391fec44ffe9929ec7014cc4c028c2d04", + "ffffe5fff7bcfee391fec44ffe9929ec7014cc4c02993404662506" + ).map(colors); + + var YlOrBr = ramp(scheme$j); + + var scheme$k = new Array(3).concat( + "ffeda0feb24cf03b20", + "ffffb2fecc5cfd8d3ce31a1c", + "ffffb2fecc5cfd8d3cf03b20bd0026", + "ffffb2fed976feb24cfd8d3cf03b20bd0026", + "ffffb2fed976feb24cfd8d3cfc4e2ae31a1cb10026", + "ffffccffeda0fed976feb24cfd8d3cfc4e2ae31a1cb10026", + "ffffccffeda0fed976feb24cfd8d3cfc4e2ae31a1cbd0026800026" + ).map(colors); + + var YlOrRd = ramp(scheme$k); + + var scheme$l = new Array(3).concat( + "deebf79ecae13182bd", + "eff3ffbdd7e76baed62171b5", + "eff3ffbdd7e76baed63182bd08519c", + "eff3ffc6dbef9ecae16baed63182bd08519c", + "eff3ffc6dbef9ecae16baed64292c62171b5084594", + "f7fbffdeebf7c6dbef9ecae16baed64292c62171b5084594", + "f7fbffdeebf7c6dbef9ecae16baed64292c62171b508519c08306b" + ).map(colors); + + var Blues = ramp(scheme$l); + + var scheme$m = new Array(3).concat( + "e5f5e0a1d99b31a354", + "edf8e9bae4b374c476238b45", + "edf8e9bae4b374c47631a354006d2c", + "edf8e9c7e9c0a1d99b74c47631a354006d2c", + "edf8e9c7e9c0a1d99b74c47641ab5d238b45005a32", + "f7fcf5e5f5e0c7e9c0a1d99b74c47641ab5d238b45005a32", + "f7fcf5e5f5e0c7e9c0a1d99b74c47641ab5d238b45006d2c00441b" + ).map(colors); + + var Greens = ramp(scheme$m); + + var scheme$n = new Array(3).concat( + "f0f0f0bdbdbd636363", + "f7f7f7cccccc969696525252", + "f7f7f7cccccc969696636363252525", + "f7f7f7d9d9d9bdbdbd969696636363252525", + "f7f7f7d9d9d9bdbdbd969696737373525252252525", + "fffffff0f0f0d9d9d9bdbdbd969696737373525252252525", + "fffffff0f0f0d9d9d9bdbdbd969696737373525252252525000000" + ).map(colors); + + var Greys = ramp(scheme$n); + + var scheme$o = new Array(3).concat( + "efedf5bcbddc756bb1", + "f2f0f7cbc9e29e9ac86a51a3", + "f2f0f7cbc9e29e9ac8756bb154278f", + "f2f0f7dadaebbcbddc9e9ac8756bb154278f", + "f2f0f7dadaebbcbddc9e9ac8807dba6a51a34a1486", + "fcfbfdefedf5dadaebbcbddc9e9ac8807dba6a51a34a1486", + "fcfbfdefedf5dadaebbcbddc9e9ac8807dba6a51a354278f3f007d" + ).map(colors); + + var Purples = ramp(scheme$o); + + var scheme$p = new Array(3).concat( + "fee0d2fc9272de2d26", + "fee5d9fcae91fb6a4acb181d", + "fee5d9fcae91fb6a4ade2d26a50f15", + "fee5d9fcbba1fc9272fb6a4ade2d26a50f15", + "fee5d9fcbba1fc9272fb6a4aef3b2ccb181d99000d", + "fff5f0fee0d2fcbba1fc9272fb6a4aef3b2ccb181d99000d", + "fff5f0fee0d2fcbba1fc9272fb6a4aef3b2ccb181da50f1567000d" + ).map(colors); + + var Reds = ramp(scheme$p); + + var scheme$q = new Array(3).concat( + "fee6cefdae6be6550d", + "feeddefdbe85fd8d3cd94701", + "feeddefdbe85fd8d3ce6550da63603", + "feeddefdd0a2fdae6bfd8d3ce6550da63603", + "feeddefdd0a2fdae6bfd8d3cf16913d948018c2d04", + "fff5ebfee6cefdd0a2fdae6bfd8d3cf16913d948018c2d04", + "fff5ebfee6cefdd0a2fdae6bfd8d3cf16913d94801a636037f2704" + ).map(colors); + + var Oranges = ramp(scheme$q); + + function cividis(t) { + t = Math.max(0, Math.min(1, t)); + return "rgb(" + + Math.max(0, Math.min(255, Math.round(-4.54 - t * (35.34 - t * (2381.73 - t * (6402.7 - t * (7024.72 - t * 2710.57))))))) + ", " + + Math.max(0, Math.min(255, Math.round(32.49 + t * (170.73 + t * (52.82 - t * (131.46 - t * (176.58 - t * 67.37))))))) + ", " + + Math.max(0, Math.min(255, Math.round(81.24 + t * (442.36 - t * (2482.43 - t * (6167.24 - t * (6614.94 - t * 2475.67))))))) + + ")"; + } + + var cubehelix$3 = cubehelixLong(cubehelix(300, 0.5, 0.0), cubehelix(-240, 0.5, 1.0)); + + var warm = cubehelixLong(cubehelix(-100, 0.75, 0.35), cubehelix(80, 1.50, 0.8)); + + var cool = cubehelixLong(cubehelix(260, 0.75, 0.35), cubehelix(80, 1.50, 0.8)); + + var c = cubehelix(); + + function rainbow(t) { + if (t < 0 || t > 1) t -= Math.floor(t); + var ts = Math.abs(t - 0.5); + c.h = 360 * t - 100; + c.s = 1.5 - 1.5 * ts; + c.l = 0.8 - 0.9 * ts; + return c + ""; + } + + var c$1 = rgb(), + pi_1_3 = Math.PI / 3, + pi_2_3 = Math.PI * 2 / 3; + + function sinebow(t) { + var x; + t = (0.5 - t) * Math.PI; + c$1.r = 255 * (x = Math.sin(t)) * x; + c$1.g = 255 * (x = Math.sin(t + pi_1_3)) * x; + c$1.b = 255 * (x = Math.sin(t + pi_2_3)) * x; + return c$1 + ""; + } + + function turbo(t) { + t = Math.max(0, Math.min(1, t)); + return "rgb(" + + Math.max(0, Math.min(255, Math.round(34.61 + t * (1172.33 - t * (10793.56 - t * (33300.12 - t * (38394.49 - t * 14825.05))))))) + ", " + + Math.max(0, Math.min(255, Math.round(23.31 + t * (557.33 + t * (1225.33 - t * (3574.96 - t * (1073.77 + t * 707.56))))))) + ", " + + Math.max(0, Math.min(255, Math.round(27.2 + t * (3211.1 - t * (15327.97 - t * (27814 - t * (22569.18 - t * 6838.66))))))) + + ")"; + } + + function ramp$1(range) { + var n = range.length; + return function(t) { + return range[Math.max(0, Math.min(n - 1, Math.floor(t * n)))]; + }; + } + + var viridis = ramp$1(colors("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")); + + var magma = ramp$1(colors("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")); + + var inferno = ramp$1(colors("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")); + + var plasma = ramp$1(colors("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")); + + function constant$b(x) { + return function constant() { + return x; + }; + } + + var abs$1 = Math.abs; + var atan2$1 = Math.atan2; + var cos$2 = Math.cos; + var max$2 = Math.max; + var min$1 = Math.min; + var sin$2 = Math.sin; + var sqrt$2 = Math.sqrt; + + var epsilon$3 = 1e-12; + var pi$4 = Math.PI; + var halfPi$3 = pi$4 / 2; + var tau$4 = 2 * pi$4; + + function acos$1(x) { + return x > 1 ? 0 : x < -1 ? pi$4 : Math.acos(x); + } + + function asin$1(x) { + return x >= 1 ? halfPi$3 : x <= -1 ? -halfPi$3 : Math.asin(x); + } + + function arcInnerRadius(d) { + return d.innerRadius; + } + + function arcOuterRadius(d) { + return d.outerRadius; + } + + function arcStartAngle(d) { + return d.startAngle; + } + + function arcEndAngle(d) { + return d.endAngle; + } + + function arcPadAngle(d) { + return d && d.padAngle; // Note: optional! + } + + function intersect(x0, y0, x1, y1, x2, y2, x3, y3) { + var x10 = x1 - x0, y10 = y1 - y0, + x32 = x3 - x2, y32 = y3 - y2, + t = y32 * x10 - x32 * y10; + if (t * t < epsilon$3) return; + t = (x32 * (y0 - y2) - y32 * (x0 - x2)) / t; + return [x0 + t * x10, y0 + t * y10]; + } + + // Compute perpendicular offset line of length rc. + // http://mathworld.wolfram.com/Circle-LineIntersection.html + function cornerTangents(x0, y0, x1, y1, r1, rc, cw) { + var x01 = x0 - x1, + y01 = y0 - y1, + lo = (cw ? rc : -rc) / sqrt$2(x01 * x01 + y01 * y01), + ox = lo * y01, + oy = -lo * x01, + x11 = x0 + ox, + y11 = y0 + oy, + x10 = x1 + ox, + y10 = y1 + oy, + x00 = (x11 + x10) / 2, + y00 = (y11 + y10) / 2, + dx = x10 - x11, + dy = y10 - y11, + d2 = dx * dx + dy * dy, + r = r1 - rc, + D = x11 * y10 - x10 * y11, + d = (dy < 0 ? -1 : 1) * sqrt$2(max$2(0, r * r * d2 - D * D)), + cx0 = (D * dy - dx * d) / d2, + cy0 = (-D * dx - dy * d) / d2, + cx1 = (D * dy + dx * d) / d2, + cy1 = (-D * dx + dy * d) / d2, + dx0 = cx0 - x00, + dy0 = cy0 - y00, + dx1 = cx1 - x00, + dy1 = cy1 - y00; + + // Pick the closer of the two intersection points. + // TODO Is there a faster way to determine which intersection to use? + if (dx0 * dx0 + dy0 * dy0 > dx1 * dx1 + dy1 * dy1) cx0 = cx1, cy0 = cy1; + + return { + cx: cx0, + cy: cy0, + x01: -ox, + y01: -oy, + x11: cx0 * (r1 / r - 1), + y11: cy0 * (r1 / r - 1) + }; + } + + function arc() { + var innerRadius = arcInnerRadius, + outerRadius = arcOuterRadius, + cornerRadius = constant$b(0), + padRadius = null, + startAngle = arcStartAngle, + endAngle = arcEndAngle, + padAngle = arcPadAngle, + context = null; + + function arc() { + var buffer, + r, + r0 = +innerRadius.apply(this, arguments), + r1 = +outerRadius.apply(this, arguments), + a0 = startAngle.apply(this, arguments) - halfPi$3, + a1 = endAngle.apply(this, arguments) - halfPi$3, + da = abs$1(a1 - a0), + cw = a1 > a0; + + if (!context) context = buffer = path(); + + // Ensure that the outer radius is always larger than the inner radius. + if (r1 < r0) r = r1, r1 = r0, r0 = r; + + // Is it a point? + if (!(r1 > epsilon$3)) context.moveTo(0, 0); + + // Or is it a circle or annulus? + else if (da > tau$4 - epsilon$3) { + context.moveTo(r1 * cos$2(a0), r1 * sin$2(a0)); + context.arc(0, 0, r1, a0, a1, !cw); + if (r0 > epsilon$3) { + context.moveTo(r0 * cos$2(a1), r0 * sin$2(a1)); + context.arc(0, 0, r0, a1, a0, cw); + } + } + + // Or is it a circular or annular sector? + else { + var a01 = a0, + a11 = a1, + a00 = a0, + a10 = a1, + da0 = da, + da1 = da, + ap = padAngle.apply(this, arguments) / 2, + rp = (ap > epsilon$3) && (padRadius ? +padRadius.apply(this, arguments) : sqrt$2(r0 * r0 + r1 * r1)), + rc = min$1(abs$1(r1 - r0) / 2, +cornerRadius.apply(this, arguments)), + rc0 = rc, + rc1 = rc, + t0, + t1; + + // Apply padding? Note that since r1 ≥ r0, da1 ≥ da0. + if (rp > epsilon$3) { + var p0 = asin$1(rp / r0 * sin$2(ap)), + p1 = asin$1(rp / r1 * sin$2(ap)); + if ((da0 -= p0 * 2) > epsilon$3) p0 *= (cw ? 1 : -1), a00 += p0, a10 -= p0; + else da0 = 0, a00 = a10 = (a0 + a1) / 2; + if ((da1 -= p1 * 2) > epsilon$3) p1 *= (cw ? 1 : -1), a01 += p1, a11 -= p1; + else da1 = 0, a01 = a11 = (a0 + a1) / 2; + } + + var x01 = r1 * cos$2(a01), + y01 = r1 * sin$2(a01), + x10 = r0 * cos$2(a10), + y10 = r0 * sin$2(a10); + + // Apply rounded corners? + if (rc > epsilon$3) { + var x11 = r1 * cos$2(a11), + y11 = r1 * sin$2(a11), + x00 = r0 * cos$2(a00), + y00 = r0 * sin$2(a00), + oc; + + // Restrict the corner radius according to the sector angle. + if (da < pi$4 && (oc = intersect(x01, y01, x00, y00, x11, y11, x10, y10))) { + var ax = x01 - oc[0], + ay = y01 - oc[1], + bx = x11 - oc[0], + by = y11 - oc[1], + kc = 1 / sin$2(acos$1((ax * bx + ay * by) / (sqrt$2(ax * ax + ay * ay) * sqrt$2(bx * bx + by * by))) / 2), + lc = sqrt$2(oc[0] * oc[0] + oc[1] * oc[1]); + rc0 = min$1(rc, (r0 - lc) / (kc - 1)); + rc1 = min$1(rc, (r1 - lc) / (kc + 1)); + } + } + + // Is the sector collapsed to a line? + if (!(da1 > epsilon$3)) context.moveTo(x01, y01); + + // Does the sector’s outer ring have rounded corners? + else if (rc1 > epsilon$3) { + t0 = cornerTangents(x00, y00, x01, y01, r1, rc1, cw); + t1 = cornerTangents(x11, y11, x10, y10, r1, rc1, cw); + + context.moveTo(t0.cx + t0.x01, t0.cy + t0.y01); + + // Have the corners merged? + if (rc1 < rc) context.arc(t0.cx, t0.cy, rc1, atan2$1(t0.y01, t0.x01), atan2$1(t1.y01, t1.x01), !cw); + + // Otherwise, draw the two corners and the ring. + else { + context.arc(t0.cx, t0.cy, rc1, atan2$1(t0.y01, t0.x01), atan2$1(t0.y11, t0.x11), !cw); + context.arc(0, 0, r1, atan2$1(t0.cy + t0.y11, t0.cx + t0.x11), atan2$1(t1.cy + t1.y11, t1.cx + t1.x11), !cw); + context.arc(t1.cx, t1.cy, rc1, atan2$1(t1.y11, t1.x11), atan2$1(t1.y01, t1.x01), !cw); + } + } + + // Or is the outer ring just a circular arc? + else context.moveTo(x01, y01), context.arc(0, 0, r1, a01, a11, !cw); + + // Is there no inner ring, and it’s a circular sector? + // Or perhaps it’s an annular sector collapsed due to padding? + if (!(r0 > epsilon$3) || !(da0 > epsilon$3)) context.lineTo(x10, y10); + + // Does the sector’s inner ring (or point) have rounded corners? + else if (rc0 > epsilon$3) { + t0 = cornerTangents(x10, y10, x11, y11, r0, -rc0, cw); + t1 = cornerTangents(x01, y01, x00, y00, r0, -rc0, cw); + + context.lineTo(t0.cx + t0.x01, t0.cy + t0.y01); + + // Have the corners merged? + if (rc0 < rc) context.arc(t0.cx, t0.cy, rc0, atan2$1(t0.y01, t0.x01), atan2$1(t1.y01, t1.x01), !cw); + + // Otherwise, draw the two corners and the ring. + else { + context.arc(t0.cx, t0.cy, rc0, atan2$1(t0.y01, t0.x01), atan2$1(t0.y11, t0.x11), !cw); + context.arc(0, 0, r0, atan2$1(t0.cy + t0.y11, t0.cx + t0.x11), atan2$1(t1.cy + t1.y11, t1.cx + t1.x11), cw); + context.arc(t1.cx, t1.cy, rc0, atan2$1(t1.y11, t1.x11), atan2$1(t1.y01, t1.x01), !cw); + } + } + + // Or is the inner ring just a circular arc? + else context.arc(0, 0, r0, a10, a00, cw); + } + + context.closePath(); + + if (buffer) return context = null, buffer + "" || null; + } + + arc.centroid = function() { + var r = (+innerRadius.apply(this, arguments) + +outerRadius.apply(this, arguments)) / 2, + a = (+startAngle.apply(this, arguments) + +endAngle.apply(this, arguments)) / 2 - pi$4 / 2; + return [cos$2(a) * r, sin$2(a) * r]; + }; + + arc.innerRadius = function(_) { + return arguments.length ? (innerRadius = typeof _ === "function" ? _ : constant$b(+_), arc) : innerRadius; + }; + + arc.outerRadius = function(_) { + return arguments.length ? (outerRadius = typeof _ === "function" ? _ : constant$b(+_), arc) : outerRadius; + }; + + arc.cornerRadius = function(_) { + return arguments.length ? (cornerRadius = typeof _ === "function" ? _ : constant$b(+_), arc) : cornerRadius; + }; + + arc.padRadius = function(_) { + return arguments.length ? (padRadius = _ == null ? null : typeof _ === "function" ? _ : constant$b(+_), arc) : padRadius; + }; + + arc.startAngle = function(_) { + return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$b(+_), arc) : startAngle; + }; + + arc.endAngle = function(_) { + return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$b(+_), arc) : endAngle; + }; + + arc.padAngle = function(_) { + return arguments.length ? (padAngle = typeof _ === "function" ? _ : constant$b(+_), arc) : padAngle; + }; + + arc.context = function(_) { + return arguments.length ? ((context = _ == null ? null : _), arc) : context; + }; + + return arc; + } + + function Linear(context) { + this._context = context; + } + + Linear.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._point = 0; + }, + lineEnd: function() { + if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; + case 1: this._point = 2; // proceed + default: this._context.lineTo(x, y); break; + } + } + }; + + function curveLinear(context) { + return new Linear(context); + } + + function x$3(p) { + return p[0]; + } + + function y$3(p) { + return p[1]; + } + + function line() { + var x = x$3, + y = y$3, + defined = constant$b(true), + context = null, + curve = curveLinear, + output = null; + + function line(data) { + var i, + n = data.length, + d, + defined0 = false, + buffer; + + if (context == null) output = curve(buffer = path()); + + for (i = 0; i <= n; ++i) { + if (!(i < n && defined(d = data[i], i, data)) === defined0) { + if (defined0 = !defined0) output.lineStart(); + else output.lineEnd(); + } + if (defined0) output.point(+x(d, i, data), +y(d, i, data)); + } + + if (buffer) return output = null, buffer + "" || null; + } + + line.x = function(_) { + return arguments.length ? (x = typeof _ === "function" ? _ : constant$b(+_), line) : x; + }; + + line.y = function(_) { + return arguments.length ? (y = typeof _ === "function" ? _ : constant$b(+_), line) : y; + }; + + line.defined = function(_) { + return arguments.length ? (defined = typeof _ === "function" ? _ : constant$b(!!_), line) : defined; + }; + + line.curve = function(_) { + return arguments.length ? (curve = _, context != null && (output = curve(context)), line) : curve; + }; + + line.context = function(_) { + return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), line) : context; + }; + + return line; + } + + function area$3() { + var x0 = x$3, + x1 = null, + y0 = constant$b(0), + y1 = y$3, + defined = constant$b(true), + context = null, + curve = curveLinear, + output = null; + + function area(data) { + var i, + j, + k, + n = data.length, + d, + defined0 = false, + buffer, + x0z = new Array(n), + y0z = new Array(n); + + if (context == null) output = curve(buffer = path()); + + for (i = 0; i <= n; ++i) { + if (!(i < n && defined(d = data[i], i, data)) === defined0) { + if (defined0 = !defined0) { + j = i; + output.areaStart(); + output.lineStart(); + } else { + output.lineEnd(); + output.lineStart(); + for (k = i - 1; k >= j; --k) { + output.point(x0z[k], y0z[k]); + } + output.lineEnd(); + output.areaEnd(); + } + } + if (defined0) { + x0z[i] = +x0(d, i, data), y0z[i] = +y0(d, i, data); + output.point(x1 ? +x1(d, i, data) : x0z[i], y1 ? +y1(d, i, data) : y0z[i]); + } + } + + if (buffer) return output = null, buffer + "" || null; + } + + function arealine() { + return line().defined(defined).curve(curve).context(context); + } + + area.x = function(_) { + return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$b(+_), x1 = null, area) : x0; + }; + + area.x0 = function(_) { + return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$b(+_), area) : x0; + }; + + area.x1 = function(_) { + return arguments.length ? (x1 = _ == null ? null : typeof _ === "function" ? _ : constant$b(+_), area) : x1; + }; + + area.y = function(_) { + return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$b(+_), y1 = null, area) : y0; + }; + + area.y0 = function(_) { + return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$b(+_), area) : y0; + }; + + area.y1 = function(_) { + return arguments.length ? (y1 = _ == null ? null : typeof _ === "function" ? _ : constant$b(+_), area) : y1; + }; + + area.lineX0 = + area.lineY0 = function() { + return arealine().x(x0).y(y0); + }; + + area.lineY1 = function() { + return arealine().x(x0).y(y1); + }; + + area.lineX1 = function() { + return arealine().x(x1).y(y0); + }; + + area.defined = function(_) { + return arguments.length ? (defined = typeof _ === "function" ? _ : constant$b(!!_), area) : defined; + }; + + area.curve = function(_) { + return arguments.length ? (curve = _, context != null && (output = curve(context)), area) : curve; + }; + + area.context = function(_) { + return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), area) : context; + }; + + return area; + } + + function descending$1(a, b) { + return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN; + } + + function identity$8(d) { + return d; + } + + function pie() { + var value = identity$8, + sortValues = descending$1, + sort = null, + startAngle = constant$b(0), + endAngle = constant$b(tau$4), + padAngle = constant$b(0); + + function pie(data) { + var i, + n = data.length, + j, + k, + sum = 0, + index = new Array(n), + arcs = new Array(n), + a0 = +startAngle.apply(this, arguments), + da = Math.min(tau$4, Math.max(-tau$4, endAngle.apply(this, arguments) - a0)), + a1, + p = Math.min(Math.abs(da) / n, padAngle.apply(this, arguments)), + pa = p * (da < 0 ? -1 : 1), + v; + + for (i = 0; i < n; ++i) { + if ((v = arcs[index[i] = i] = +value(data[i], i, data)) > 0) { + sum += v; + } + } + + // Optionally sort the arcs by previously-computed values or by data. + if (sortValues != null) index.sort(function(i, j) { return sortValues(arcs[i], arcs[j]); }); + else if (sort != null) index.sort(function(i, j) { return sort(data[i], data[j]); }); + + // Compute the arcs! They are stored in the original data's order. + for (i = 0, k = sum ? (da - n * pa) / sum : 0; i < n; ++i, a0 = a1) { + j = index[i], v = arcs[j], a1 = a0 + (v > 0 ? v * k : 0) + pa, arcs[j] = { + data: data[j], + index: i, + value: v, + startAngle: a0, + endAngle: a1, + padAngle: p + }; + } + + return arcs; + } + + pie.value = function(_) { + return arguments.length ? (value = typeof _ === "function" ? _ : constant$b(+_), pie) : value; + }; + + pie.sortValues = function(_) { + return arguments.length ? (sortValues = _, sort = null, pie) : sortValues; + }; + + pie.sort = function(_) { + return arguments.length ? (sort = _, sortValues = null, pie) : sort; + }; + + pie.startAngle = function(_) { + return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$b(+_), pie) : startAngle; + }; + + pie.endAngle = function(_) { + return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$b(+_), pie) : endAngle; + }; + + pie.padAngle = function(_) { + return arguments.length ? (padAngle = typeof _ === "function" ? _ : constant$b(+_), pie) : padAngle; + }; + + return pie; + } + + var curveRadialLinear = curveRadial(curveLinear); + + function Radial(curve) { + this._curve = curve; + } + + Radial.prototype = { + areaStart: function() { + this._curve.areaStart(); + }, + areaEnd: function() { + this._curve.areaEnd(); + }, + lineStart: function() { + this._curve.lineStart(); + }, + lineEnd: function() { + this._curve.lineEnd(); + }, + point: function(a, r) { + this._curve.point(r * Math.sin(a), r * -Math.cos(a)); + } + }; + + function curveRadial(curve) { + + function radial(context) { + return new Radial(curve(context)); + } + + radial._curve = curve; + + return radial; + } + + function lineRadial(l) { + var c = l.curve; + + l.angle = l.x, delete l.x; + l.radius = l.y, delete l.y; + + l.curve = function(_) { + return arguments.length ? c(curveRadial(_)) : c()._curve; + }; + + return l; + } + + function lineRadial$1() { + return lineRadial(line().curve(curveRadialLinear)); + } + + function areaRadial() { + var a = area$3().curve(curveRadialLinear), + c = a.curve, + x0 = a.lineX0, + x1 = a.lineX1, + y0 = a.lineY0, + y1 = a.lineY1; + + a.angle = a.x, delete a.x; + a.startAngle = a.x0, delete a.x0; + a.endAngle = a.x1, delete a.x1; + a.radius = a.y, delete a.y; + a.innerRadius = a.y0, delete a.y0; + a.outerRadius = a.y1, delete a.y1; + a.lineStartAngle = function() { return lineRadial(x0()); }, delete a.lineX0; + a.lineEndAngle = function() { return lineRadial(x1()); }, delete a.lineX1; + a.lineInnerRadius = function() { return lineRadial(y0()); }, delete a.lineY0; + a.lineOuterRadius = function() { return lineRadial(y1()); }, delete a.lineY1; + + a.curve = function(_) { + return arguments.length ? c(curveRadial(_)) : c()._curve; + }; + + return a; + } + + function pointRadial(x, y) { + return [(y = +y) * Math.cos(x -= Math.PI / 2), y * Math.sin(x)]; + } + + var slice$6 = Array.prototype.slice; + + function linkSource(d) { + return d.source; + } + + function linkTarget(d) { + return d.target; + } + + function link$2(curve) { + var source = linkSource, + target = linkTarget, + x = x$3, + y = y$3, + context = null; + + function link() { + var buffer, argv = slice$6.call(arguments), s = source.apply(this, argv), t = target.apply(this, argv); + if (!context) context = buffer = path(); + curve(context, +x.apply(this, (argv[0] = s, argv)), +y.apply(this, argv), +x.apply(this, (argv[0] = t, argv)), +y.apply(this, argv)); + if (buffer) return context = null, buffer + "" || null; + } + + link.source = function(_) { + return arguments.length ? (source = _, link) : source; + }; + + link.target = function(_) { + return arguments.length ? (target = _, link) : target; + }; + + link.x = function(_) { + return arguments.length ? (x = typeof _ === "function" ? _ : constant$b(+_), link) : x; + }; + + link.y = function(_) { + return arguments.length ? (y = typeof _ === "function" ? _ : constant$b(+_), link) : y; + }; + + link.context = function(_) { + return arguments.length ? ((context = _ == null ? null : _), link) : context; + }; + + return link; + } + + function curveHorizontal(context, x0, y0, x1, y1) { + context.moveTo(x0, y0); + context.bezierCurveTo(x0 = (x0 + x1) / 2, y0, x0, y1, x1, y1); + } + + function curveVertical(context, x0, y0, x1, y1) { + context.moveTo(x0, y0); + context.bezierCurveTo(x0, y0 = (y0 + y1) / 2, x1, y0, x1, y1); + } + + function curveRadial$1(context, x0, y0, x1, y1) { + var p0 = pointRadial(x0, y0), + p1 = pointRadial(x0, y0 = (y0 + y1) / 2), + p2 = pointRadial(x1, y0), + p3 = pointRadial(x1, y1); + context.moveTo(p0[0], p0[1]); + context.bezierCurveTo(p1[0], p1[1], p2[0], p2[1], p3[0], p3[1]); + } + + function linkHorizontal() { + return link$2(curveHorizontal); + } + + function linkVertical() { + return link$2(curveVertical); + } + + function linkRadial() { + var l = link$2(curveRadial$1); + l.angle = l.x, delete l.x; + l.radius = l.y, delete l.y; + return l; + } + + var circle$2 = { + draw: function(context, size) { + var r = Math.sqrt(size / pi$4); + context.moveTo(r, 0); + context.arc(0, 0, r, 0, tau$4); + } + }; + + var cross$2 = { + draw: function(context, size) { + var r = Math.sqrt(size / 5) / 2; + context.moveTo(-3 * r, -r); + context.lineTo(-r, -r); + context.lineTo(-r, -3 * r); + context.lineTo(r, -3 * r); + context.lineTo(r, -r); + context.lineTo(3 * r, -r); + context.lineTo(3 * r, r); + context.lineTo(r, r); + context.lineTo(r, 3 * r); + context.lineTo(-r, 3 * r); + context.lineTo(-r, r); + context.lineTo(-3 * r, r); + context.closePath(); + } + }; + + var tan30 = Math.sqrt(1 / 3), + tan30_2 = tan30 * 2; + + var diamond = { + draw: function(context, size) { + var y = Math.sqrt(size / tan30_2), + x = y * tan30; + context.moveTo(0, -y); + context.lineTo(x, 0); + context.lineTo(0, y); + context.lineTo(-x, 0); + context.closePath(); + } + }; + + var ka = 0.89081309152928522810, + kr = Math.sin(pi$4 / 10) / Math.sin(7 * pi$4 / 10), + kx = Math.sin(tau$4 / 10) * kr, + ky = -Math.cos(tau$4 / 10) * kr; + + var star = { + draw: function(context, size) { + var r = Math.sqrt(size * ka), + x = kx * r, + y = ky * r; + context.moveTo(0, -r); + context.lineTo(x, y); + for (var i = 1; i < 5; ++i) { + var a = tau$4 * i / 5, + c = Math.cos(a), + s = Math.sin(a); + context.lineTo(s * r, -c * r); + context.lineTo(c * x - s * y, s * x + c * y); + } + context.closePath(); + } + }; + + var square = { + draw: function(context, size) { + var w = Math.sqrt(size), + x = -w / 2; + context.rect(x, x, w, w); + } + }; + + var sqrt3 = Math.sqrt(3); + + var triangle = { + draw: function(context, size) { + var y = -Math.sqrt(size / (sqrt3 * 3)); + context.moveTo(0, y * 2); + context.lineTo(-sqrt3 * y, -y); + context.lineTo(sqrt3 * y, -y); + context.closePath(); + } + }; + + var c$2 = -0.5, + s = Math.sqrt(3) / 2, + k = 1 / Math.sqrt(12), + a = (k / 2 + 1) * 3; + + var wye = { + draw: function(context, size) { + var r = Math.sqrt(size / a), + x0 = r / 2, + y0 = r * k, + x1 = x0, + y1 = r * k + r, + x2 = -x1, + y2 = y1; + context.moveTo(x0, y0); + context.lineTo(x1, y1); + context.lineTo(x2, y2); + context.lineTo(c$2 * x0 - s * y0, s * x0 + c$2 * y0); + context.lineTo(c$2 * x1 - s * y1, s * x1 + c$2 * y1); + context.lineTo(c$2 * x2 - s * y2, s * x2 + c$2 * y2); + context.lineTo(c$2 * x0 + s * y0, c$2 * y0 - s * x0); + context.lineTo(c$2 * x1 + s * y1, c$2 * y1 - s * x1); + context.lineTo(c$2 * x2 + s * y2, c$2 * y2 - s * x2); + context.closePath(); + } + }; + + var symbols = [ + circle$2, + cross$2, + diamond, + square, + star, + triangle, + wye + ]; + + function symbol() { + var type = constant$b(circle$2), + size = constant$b(64), + context = null; + + function symbol() { + var buffer; + if (!context) context = buffer = path(); + type.apply(this, arguments).draw(context, +size.apply(this, arguments)); + if (buffer) return context = null, buffer + "" || null; + } + + symbol.type = function(_) { + return arguments.length ? (type = typeof _ === "function" ? _ : constant$b(_), symbol) : type; + }; + + symbol.size = function(_) { + return arguments.length ? (size = typeof _ === "function" ? _ : constant$b(+_), symbol) : size; + }; + + symbol.context = function(_) { + return arguments.length ? (context = _ == null ? null : _, symbol) : context; + }; + + return symbol; + } + + function noop$3() {} + + function point$2(that, x, y) { + that._context.bezierCurveTo( + (2 * that._x0 + that._x1) / 3, + (2 * that._y0 + that._y1) / 3, + (that._x0 + 2 * that._x1) / 3, + (that._y0 + 2 * that._y1) / 3, + (that._x0 + 4 * that._x1 + x) / 6, + (that._y0 + 4 * that._y1 + y) / 6 + ); + } + + function Basis(context) { + this._context = context; + } + + Basis.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x0 = this._x1 = + this._y0 = this._y1 = NaN; + this._point = 0; + }, + lineEnd: function() { + switch (this._point) { + case 3: point$2(this, this._x1, this._y1); // proceed + case 2: this._context.lineTo(this._x1, this._y1); break; + } + if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; + case 1: this._point = 2; break; + case 2: this._point = 3; this._context.lineTo((5 * this._x0 + this._x1) / 6, (5 * this._y0 + this._y1) / 6); // proceed + default: point$2(this, x, y); break; + } + this._x0 = this._x1, this._x1 = x; + this._y0 = this._y1, this._y1 = y; + } + }; + + function basis$2(context) { + return new Basis(context); + } + + function BasisClosed(context) { + this._context = context; + } + + BasisClosed.prototype = { + areaStart: noop$3, + areaEnd: noop$3, + lineStart: function() { + this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = + this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = NaN; + this._point = 0; + }, + lineEnd: function() { + switch (this._point) { + case 1: { + this._context.moveTo(this._x2, this._y2); + this._context.closePath(); + break; + } + case 2: { + this._context.moveTo((this._x2 + 2 * this._x3) / 3, (this._y2 + 2 * this._y3) / 3); + this._context.lineTo((this._x3 + 2 * this._x2) / 3, (this._y3 + 2 * this._y2) / 3); + this._context.closePath(); + break; + } + case 3: { + this.point(this._x2, this._y2); + this.point(this._x3, this._y3); + this.point(this._x4, this._y4); + break; + } + } + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; this._x2 = x, this._y2 = y; break; + case 1: this._point = 2; this._x3 = x, this._y3 = y; break; + case 2: this._point = 3; this._x4 = x, this._y4 = y; this._context.moveTo((this._x0 + 4 * this._x1 + x) / 6, (this._y0 + 4 * this._y1 + y) / 6); break; + default: point$2(this, x, y); break; + } + this._x0 = this._x1, this._x1 = x; + this._y0 = this._y1, this._y1 = y; + } + }; + + function basisClosed$1(context) { + return new BasisClosed(context); + } + + function BasisOpen(context) { + this._context = context; + } + + BasisOpen.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x0 = this._x1 = + this._y0 = this._y1 = NaN; + this._point = 0; + }, + lineEnd: function() { + if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; break; + case 1: this._point = 2; break; + case 2: this._point = 3; var x0 = (this._x0 + 4 * this._x1 + x) / 6, y0 = (this._y0 + 4 * this._y1 + y) / 6; this._line ? this._context.lineTo(x0, y0) : this._context.moveTo(x0, y0); break; + case 3: this._point = 4; // proceed + default: point$2(this, x, y); break; + } + this._x0 = this._x1, this._x1 = x; + this._y0 = this._y1, this._y1 = y; + } + }; + + function basisOpen(context) { + return new BasisOpen(context); + } + + function Bundle(context, beta) { + this._basis = new Basis(context); + this._beta = beta; + } + + Bundle.prototype = { + lineStart: function() { + this._x = []; + this._y = []; + this._basis.lineStart(); + }, + lineEnd: function() { + var x = this._x, + y = this._y, + j = x.length - 1; + + if (j > 0) { + var x0 = x[0], + y0 = y[0], + dx = x[j] - x0, + dy = y[j] - y0, + i = -1, + t; + + while (++i <= j) { + t = i / j; + this._basis.point( + this._beta * x[i] + (1 - this._beta) * (x0 + t * dx), + this._beta * y[i] + (1 - this._beta) * (y0 + t * dy) + ); + } + } + + this._x = this._y = null; + this._basis.lineEnd(); + }, + point: function(x, y) { + this._x.push(+x); + this._y.push(+y); + } + }; + + var bundle = (function custom(beta) { + + function bundle(context) { + return beta === 1 ? new Basis(context) : new Bundle(context, beta); + } + + bundle.beta = function(beta) { + return custom(+beta); + }; + + return bundle; + })(0.85); + + function point$3(that, x, y) { + that._context.bezierCurveTo( + that._x1 + that._k * (that._x2 - that._x0), + that._y1 + that._k * (that._y2 - that._y0), + that._x2 + that._k * (that._x1 - x), + that._y2 + that._k * (that._y1 - y), + that._x2, + that._y2 + ); + } + + function Cardinal(context, tension) { + this._context = context; + this._k = (1 - tension) / 6; + } + + Cardinal.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x0 = this._x1 = this._x2 = + this._y0 = this._y1 = this._y2 = NaN; + this._point = 0; + }, + lineEnd: function() { + switch (this._point) { + case 2: this._context.lineTo(this._x2, this._y2); break; + case 3: point$3(this, this._x1, this._y1); break; + } + if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; + case 1: this._point = 2; this._x1 = x, this._y1 = y; break; + case 2: this._point = 3; // proceed + default: point$3(this, x, y); break; + } + this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; + this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; + } + }; + + var cardinal = (function custom(tension) { + + function cardinal(context) { + return new Cardinal(context, tension); + } + + cardinal.tension = function(tension) { + return custom(+tension); + }; + + return cardinal; + })(0); + + function CardinalClosed(context, tension) { + this._context = context; + this._k = (1 - tension) / 6; + } + + CardinalClosed.prototype = { + areaStart: noop$3, + areaEnd: noop$3, + lineStart: function() { + this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 = + this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN; + this._point = 0; + }, + lineEnd: function() { + switch (this._point) { + case 1: { + this._context.moveTo(this._x3, this._y3); + this._context.closePath(); + break; + } + case 2: { + this._context.lineTo(this._x3, this._y3); + this._context.closePath(); + break; + } + case 3: { + this.point(this._x3, this._y3); + this.point(this._x4, this._y4); + this.point(this._x5, this._y5); + break; + } + } + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; this._x3 = x, this._y3 = y; break; + case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break; + case 2: this._point = 3; this._x5 = x, this._y5 = y; break; + default: point$3(this, x, y); break; + } + this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; + this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; + } + }; + + var cardinalClosed = (function custom(tension) { + + function cardinal(context) { + return new CardinalClosed(context, tension); + } + + cardinal.tension = function(tension) { + return custom(+tension); + }; + + return cardinal; + })(0); + + function CardinalOpen(context, tension) { + this._context = context; + this._k = (1 - tension) / 6; + } + + CardinalOpen.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x0 = this._x1 = this._x2 = + this._y0 = this._y1 = this._y2 = NaN; + this._point = 0; + }, + lineEnd: function() { + if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; break; + case 1: this._point = 2; break; + case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break; + case 3: this._point = 4; // proceed + default: point$3(this, x, y); break; + } + this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; + this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; + } + }; + + var cardinalOpen = (function custom(tension) { + + function cardinal(context) { + return new CardinalOpen(context, tension); + } + + cardinal.tension = function(tension) { + return custom(+tension); + }; + + return cardinal; + })(0); + + function point$4(that, x, y) { + var x1 = that._x1, + y1 = that._y1, + x2 = that._x2, + y2 = that._y2; + + if (that._l01_a > epsilon$3) { + var a = 2 * that._l01_2a + 3 * that._l01_a * that._l12_a + that._l12_2a, + n = 3 * that._l01_a * (that._l01_a + that._l12_a); + x1 = (x1 * a - that._x0 * that._l12_2a + that._x2 * that._l01_2a) / n; + y1 = (y1 * a - that._y0 * that._l12_2a + that._y2 * that._l01_2a) / n; + } + + if (that._l23_a > epsilon$3) { + var b = 2 * that._l23_2a + 3 * that._l23_a * that._l12_a + that._l12_2a, + m = 3 * that._l23_a * (that._l23_a + that._l12_a); + x2 = (x2 * b + that._x1 * that._l23_2a - x * that._l12_2a) / m; + y2 = (y2 * b + that._y1 * that._l23_2a - y * that._l12_2a) / m; + } + + that._context.bezierCurveTo(x1, y1, x2, y2, that._x2, that._y2); + } + + function CatmullRom(context, alpha) { + this._context = context; + this._alpha = alpha; + } + + CatmullRom.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x0 = this._x1 = this._x2 = + this._y0 = this._y1 = this._y2 = NaN; + this._l01_a = this._l12_a = this._l23_a = + this._l01_2a = this._l12_2a = this._l23_2a = + this._point = 0; + }, + lineEnd: function() { + switch (this._point) { + case 2: this._context.lineTo(this._x2, this._y2); break; + case 3: this.point(this._x2, this._y2); break; + } + if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; + + if (this._point) { + var x23 = this._x2 - x, + y23 = this._y2 - y; + this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha)); + } + + switch (this._point) { + case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; + case 1: this._point = 2; break; + case 2: this._point = 3; // proceed + default: point$4(this, x, y); break; + } + + this._l01_a = this._l12_a, this._l12_a = this._l23_a; + this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a; + this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; + this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; + } + }; + + var catmullRom = (function custom(alpha) { + + function catmullRom(context) { + return alpha ? new CatmullRom(context, alpha) : new Cardinal(context, 0); + } + + catmullRom.alpha = function(alpha) { + return custom(+alpha); + }; + + return catmullRom; + })(0.5); + + function CatmullRomClosed(context, alpha) { + this._context = context; + this._alpha = alpha; + } + + CatmullRomClosed.prototype = { + areaStart: noop$3, + areaEnd: noop$3, + lineStart: function() { + this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 = + this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN; + this._l01_a = this._l12_a = this._l23_a = + this._l01_2a = this._l12_2a = this._l23_2a = + this._point = 0; + }, + lineEnd: function() { + switch (this._point) { + case 1: { + this._context.moveTo(this._x3, this._y3); + this._context.closePath(); + break; + } + case 2: { + this._context.lineTo(this._x3, this._y3); + this._context.closePath(); + break; + } + case 3: { + this.point(this._x3, this._y3); + this.point(this._x4, this._y4); + this.point(this._x5, this._y5); + break; + } + } + }, + point: function(x, y) { + x = +x, y = +y; + + if (this._point) { + var x23 = this._x2 - x, + y23 = this._y2 - y; + this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha)); + } + + switch (this._point) { + case 0: this._point = 1; this._x3 = x, this._y3 = y; break; + case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break; + case 2: this._point = 3; this._x5 = x, this._y5 = y; break; + default: point$4(this, x, y); break; + } + + this._l01_a = this._l12_a, this._l12_a = this._l23_a; + this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a; + this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; + this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; + } + }; + + var catmullRomClosed = (function custom(alpha) { + + function catmullRom(context) { + return alpha ? new CatmullRomClosed(context, alpha) : new CardinalClosed(context, 0); + } + + catmullRom.alpha = function(alpha) { + return custom(+alpha); + }; + + return catmullRom; + })(0.5); + + function CatmullRomOpen(context, alpha) { + this._context = context; + this._alpha = alpha; + } + + CatmullRomOpen.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x0 = this._x1 = this._x2 = + this._y0 = this._y1 = this._y2 = NaN; + this._l01_a = this._l12_a = this._l23_a = + this._l01_2a = this._l12_2a = this._l23_2a = + this._point = 0; + }, + lineEnd: function() { + if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; + + if (this._point) { + var x23 = this._x2 - x, + y23 = this._y2 - y; + this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha)); + } + + switch (this._point) { + case 0: this._point = 1; break; + case 1: this._point = 2; break; + case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break; + case 3: this._point = 4; // proceed + default: point$4(this, x, y); break; + } + + this._l01_a = this._l12_a, this._l12_a = this._l23_a; + this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a; + this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; + this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; + } + }; + + var catmullRomOpen = (function custom(alpha) { + + function catmullRom(context) { + return alpha ? new CatmullRomOpen(context, alpha) : new CardinalOpen(context, 0); + } + + catmullRom.alpha = function(alpha) { + return custom(+alpha); + }; + + return catmullRom; + })(0.5); + + function LinearClosed(context) { + this._context = context; + } + + LinearClosed.prototype = { + areaStart: noop$3, + areaEnd: noop$3, + lineStart: function() { + this._point = 0; + }, + lineEnd: function() { + if (this._point) this._context.closePath(); + }, + point: function(x, y) { + x = +x, y = +y; + if (this._point) this._context.lineTo(x, y); + else this._point = 1, this._context.moveTo(x, y); + } + }; + + function linearClosed(context) { + return new LinearClosed(context); + } + + function sign$1(x) { + return x < 0 ? -1 : 1; + } + + // Calculate the slopes of the tangents (Hermite-type interpolation) based on + // the following paper: Steffen, M. 1990. A Simple Method for Monotonic + // Interpolation in One Dimension. Astronomy and Astrophysics, Vol. 239, NO. + // NOV(II), P. 443, 1990. + function slope3(that, x2, y2) { + var h0 = that._x1 - that._x0, + h1 = x2 - that._x1, + s0 = (that._y1 - that._y0) / (h0 || h1 < 0 && -0), + s1 = (y2 - that._y1) / (h1 || h0 < 0 && -0), + p = (s0 * h1 + s1 * h0) / (h0 + h1); + return (sign$1(s0) + sign$1(s1)) * Math.min(Math.abs(s0), Math.abs(s1), 0.5 * Math.abs(p)) || 0; + } + + // Calculate a one-sided slope. + function slope2(that, t) { + var h = that._x1 - that._x0; + return h ? (3 * (that._y1 - that._y0) / h - t) / 2 : t; + } + + // According to https://en.wikipedia.org/wiki/Cubic_Hermite_spline#Representations + // "you can express cubic Hermite interpolation in terms of cubic Bézier curves + // with respect to the four values p0, p0 + m0 / 3, p1 - m1 / 3, p1". + function point$5(that, t0, t1) { + var x0 = that._x0, + y0 = that._y0, + x1 = that._x1, + y1 = that._y1, + dx = (x1 - x0) / 3; + that._context.bezierCurveTo(x0 + dx, y0 + dx * t0, x1 - dx, y1 - dx * t1, x1, y1); + } + + function MonotoneX(context) { + this._context = context; + } + + MonotoneX.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x0 = this._x1 = + this._y0 = this._y1 = + this._t0 = NaN; + this._point = 0; + }, + lineEnd: function() { + switch (this._point) { + case 2: this._context.lineTo(this._x1, this._y1); break; + case 3: point$5(this, this._t0, slope2(this, this._t0)); break; + } + if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); + this._line = 1 - this._line; + }, + point: function(x, y) { + var t1 = NaN; + + x = +x, y = +y; + if (x === this._x1 && y === this._y1) return; // Ignore coincident points. + switch (this._point) { + case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; + case 1: this._point = 2; break; + case 2: this._point = 3; point$5(this, slope2(this, t1 = slope3(this, x, y)), t1); break; + default: point$5(this, this._t0, t1 = slope3(this, x, y)); break; + } + + this._x0 = this._x1, this._x1 = x; + this._y0 = this._y1, this._y1 = y; + this._t0 = t1; + } + }; + + function MonotoneY(context) { + this._context = new ReflectContext(context); + } + + (MonotoneY.prototype = Object.create(MonotoneX.prototype)).point = function(x, y) { + MonotoneX.prototype.point.call(this, y, x); + }; + + function ReflectContext(context) { + this._context = context; + } + + ReflectContext.prototype = { + moveTo: function(x, y) { this._context.moveTo(y, x); }, + closePath: function() { this._context.closePath(); }, + lineTo: function(x, y) { this._context.lineTo(y, x); }, + bezierCurveTo: function(x1, y1, x2, y2, x, y) { this._context.bezierCurveTo(y1, x1, y2, x2, y, x); } + }; + + function monotoneX(context) { + return new MonotoneX(context); + } + + function monotoneY(context) { + return new MonotoneY(context); + } + + function Natural(context) { + this._context = context; + } + + Natural.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x = []; + this._y = []; + }, + lineEnd: function() { + var x = this._x, + y = this._y, + n = x.length; + + if (n) { + this._line ? this._context.lineTo(x[0], y[0]) : this._context.moveTo(x[0], y[0]); + if (n === 2) { + this._context.lineTo(x[1], y[1]); + } else { + var px = controlPoints(x), + py = controlPoints(y); + for (var i0 = 0, i1 = 1; i1 < n; ++i0, ++i1) { + this._context.bezierCurveTo(px[0][i0], py[0][i0], px[1][i0], py[1][i0], x[i1], y[i1]); + } + } + } + + if (this._line || (this._line !== 0 && n === 1)) this._context.closePath(); + this._line = 1 - this._line; + this._x = this._y = null; + }, + point: function(x, y) { + this._x.push(+x); + this._y.push(+y); + } + }; + + // See https://www.particleincell.com/2012/bezier-splines/ for derivation. + function controlPoints(x) { + var i, + n = x.length - 1, + m, + a = new Array(n), + b = new Array(n), + r = new Array(n); + a[0] = 0, b[0] = 2, r[0] = x[0] + 2 * x[1]; + for (i = 1; i < n - 1; ++i) a[i] = 1, b[i] = 4, r[i] = 4 * x[i] + 2 * x[i + 1]; + a[n - 1] = 2, b[n - 1] = 7, r[n - 1] = 8 * x[n - 1] + x[n]; + for (i = 1; i < n; ++i) m = a[i] / b[i - 1], b[i] -= m, r[i] -= m * r[i - 1]; + a[n - 1] = r[n - 1] / b[n - 1]; + for (i = n - 2; i >= 0; --i) a[i] = (r[i] - a[i + 1]) / b[i]; + b[n - 1] = (x[n] + a[n - 1]) / 2; + for (i = 0; i < n - 1; ++i) b[i] = 2 * x[i + 1] - a[i + 1]; + return [a, b]; + } + + function natural(context) { + return new Natural(context); + } + + function Step(context, t) { + this._context = context; + this._t = t; + } + + Step.prototype = { + areaStart: function() { + this._line = 0; + }, + areaEnd: function() { + this._line = NaN; + }, + lineStart: function() { + this._x = this._y = NaN; + this._point = 0; + }, + lineEnd: function() { + if (0 < this._t && this._t < 1 && this._point === 2) this._context.lineTo(this._x, this._y); + if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); + if (this._line >= 0) this._t = 1 - this._t, this._line = 1 - this._line; + }, + point: function(x, y) { + x = +x, y = +y; + switch (this._point) { + case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; + case 1: this._point = 2; // proceed + default: { + if (this._t <= 0) { + this._context.lineTo(this._x, y); + this._context.lineTo(x, y); + } else { + var x1 = this._x * (1 - this._t) + x * this._t; + this._context.lineTo(x1, this._y); + this._context.lineTo(x1, y); + } + break; + } + } + this._x = x, this._y = y; + } + }; + + function step(context) { + return new Step(context, 0.5); + } + + function stepBefore(context) { + return new Step(context, 0); + } + + function stepAfter(context) { + return new Step(context, 1); + } + + function none$1(series, order) { + if (!((n = series.length) > 1)) return; + for (var i = 1, j, s0, s1 = series[order[0]], n, m = s1.length; i < n; ++i) { + s0 = s1, s1 = series[order[i]]; + for (j = 0; j < m; ++j) { + s1[j][1] += s1[j][0] = isNaN(s0[j][1]) ? s0[j][0] : s0[j][1]; + } + } + } + + function none$2(series) { + var n = series.length, o = new Array(n); + while (--n >= 0) o[n] = n; + return o; + } + + function stackValue(d, key) { + return d[key]; + } + + function stack() { + var keys = constant$b([]), + order = none$2, + offset = none$1, + value = stackValue; + + function stack(data) { + var kz = keys.apply(this, arguments), + i, + m = data.length, + n = kz.length, + sz = new Array(n), + oz; + + for (i = 0; i < n; ++i) { + for (var ki = kz[i], si = sz[i] = new Array(m), j = 0, sij; j < m; ++j) { + si[j] = sij = [0, +value(data[j], ki, j, data)]; + sij.data = data[j]; + } + si.key = ki; + } + + for (i = 0, oz = order(sz); i < n; ++i) { + sz[oz[i]].index = i; + } + + offset(sz, oz); + return sz; + } + + stack.keys = function(_) { + return arguments.length ? (keys = typeof _ === "function" ? _ : constant$b(slice$6.call(_)), stack) : keys; + }; + + stack.value = function(_) { + return arguments.length ? (value = typeof _ === "function" ? _ : constant$b(+_), stack) : value; + }; + + stack.order = function(_) { + return arguments.length ? (order = _ == null ? none$2 : typeof _ === "function" ? _ : constant$b(slice$6.call(_)), stack) : order; + }; + + stack.offset = function(_) { + return arguments.length ? (offset = _ == null ? none$1 : _, stack) : offset; + }; + + return stack; + } + + function expand(series, order) { + if (!((n = series.length) > 0)) return; + for (var i, n, j = 0, m = series[0].length, y; j < m; ++j) { + for (y = i = 0; i < n; ++i) y += series[i][j][1] || 0; + if (y) for (i = 0; i < n; ++i) series[i][j][1] /= y; + } + none$1(series, order); + } + + function diverging$1(series, order) { + if (!((n = series.length) > 0)) return; + for (var i, j = 0, d, dy, yp, yn, n, m = series[order[0]].length; j < m; ++j) { + for (yp = yn = 0, i = 0; i < n; ++i) { + if ((dy = (d = series[order[i]][j])[1] - d[0]) > 0) { + d[0] = yp, d[1] = yp += dy; + } else if (dy < 0) { + d[1] = yn, d[0] = yn += dy; + } else { + d[0] = 0, d[1] = dy; + } + } + } + } + + function silhouette(series, order) { + if (!((n = series.length) > 0)) return; + for (var j = 0, s0 = series[order[0]], n, m = s0.length; j < m; ++j) { + for (var i = 0, y = 0; i < n; ++i) y += series[i][j][1] || 0; + s0[j][1] += s0[j][0] = -y / 2; + } + none$1(series, order); + } + + function wiggle(series, order) { + if (!((n = series.length) > 0) || !((m = (s0 = series[order[0]]).length) > 0)) return; + for (var y = 0, j = 1, s0, m, n; j < m; ++j) { + for (var i = 0, s1 = 0, s2 = 0; i < n; ++i) { + var si = series[order[i]], + sij0 = si[j][1] || 0, + sij1 = si[j - 1][1] || 0, + s3 = (sij0 - sij1) / 2; + for (var k = 0; k < i; ++k) { + var sk = series[order[k]], + skj0 = sk[j][1] || 0, + skj1 = sk[j - 1][1] || 0; + s3 += skj0 - skj1; + } + s1 += sij0, s2 += s3 * sij0; + } + s0[j - 1][1] += s0[j - 1][0] = y; + if (s1) y -= s2 / s1; + } + s0[j - 1][1] += s0[j - 1][0] = y; + none$1(series, order); + } + + function appearance(series) { + var peaks = series.map(peak); + return none$2(series).sort(function(a, b) { return peaks[a] - peaks[b]; }); + } + + function peak(series) { + var i = -1, j = 0, n = series.length, vi, vj = -Infinity; + while (++i < n) if ((vi = +series[i][1]) > vj) vj = vi, j = i; + return j; + } + + function ascending$3(series) { + var sums = series.map(sum$2); + return none$2(series).sort(function(a, b) { return sums[a] - sums[b]; }); + } + + function sum$2(series) { + var s = 0, i = -1, n = series.length, v; + while (++i < n) if (v = +series[i][1]) s += v; + return s; + } + + function descending$2(series) { + return ascending$3(series).reverse(); + } + + function insideOut(series) { + var n = series.length, + i, + j, + sums = series.map(sum$2), + order = appearance(series), + top = 0, + bottom = 0, + tops = [], + bottoms = []; + + for (i = 0; i < n; ++i) { + j = order[i]; + if (top < bottom) { + top += sums[j]; + tops.push(j); + } else { + bottom += sums[j]; + bottoms.push(j); + } + } + + return bottoms.reverse().concat(tops); + } + + function reverse(series) { + return none$2(series).reverse(); + } + + function constant$c(x) { + return function() { + return x; + }; + } + + function x$4(d) { + return d[0]; + } + + function y$4(d) { + return d[1]; + } + + function RedBlackTree() { + this._ = null; // root node + } + + function RedBlackNode(node) { + node.U = // parent node + node.C = // color - true for red, false for black + node.L = // left node + node.R = // right node + node.P = // previous node + node.N = null; // next node + } + + RedBlackTree.prototype = { + constructor: RedBlackTree, + + insert: function(after, node) { + var parent, grandpa, uncle; + + if (after) { + node.P = after; + node.N = after.N; + if (after.N) after.N.P = node; + after.N = node; + if (after.R) { + after = after.R; + while (after.L) after = after.L; + after.L = node; + } else { + after.R = node; + } + parent = after; + } else if (this._) { + after = RedBlackFirst(this._); + node.P = null; + node.N = after; + after.P = after.L = node; + parent = after; + } else { + node.P = node.N = null; + this._ = node; + parent = null; + } + node.L = node.R = null; + node.U = parent; + node.C = true; + + after = node; + while (parent && parent.C) { + grandpa = parent.U; + if (parent === grandpa.L) { + uncle = grandpa.R; + if (uncle && uncle.C) { + parent.C = uncle.C = false; + grandpa.C = true; + after = grandpa; + } else { + if (after === parent.R) { + RedBlackRotateLeft(this, parent); + after = parent; + parent = after.U; + } + parent.C = false; + grandpa.C = true; + RedBlackRotateRight(this, grandpa); + } + } else { + uncle = grandpa.L; + if (uncle && uncle.C) { + parent.C = uncle.C = false; + grandpa.C = true; + after = grandpa; + } else { + if (after === parent.L) { + RedBlackRotateRight(this, parent); + after = parent; + parent = after.U; + } + parent.C = false; + grandpa.C = true; + RedBlackRotateLeft(this, grandpa); + } + } + parent = after.U; + } + this._.C = false; + }, + + remove: function(node) { + if (node.N) node.N.P = node.P; + if (node.P) node.P.N = node.N; + node.N = node.P = null; + + var parent = node.U, + sibling, + left = node.L, + right = node.R, + next, + red; + + if (!left) next = right; + else if (!right) next = left; + else next = RedBlackFirst(right); + + if (parent) { + if (parent.L === node) parent.L = next; + else parent.R = next; + } else { + this._ = next; + } + + if (left && right) { + red = next.C; + next.C = node.C; + next.L = left; + left.U = next; + if (next !== right) { + parent = next.U; + next.U = node.U; + node = next.R; + parent.L = node; + next.R = right; + right.U = next; + } else { + next.U = parent; + parent = next; + node = next.R; + } + } else { + red = node.C; + node = next; + } + + if (node) node.U = parent; + if (red) return; + if (node && node.C) { node.C = false; return; } + + do { + if (node === this._) break; + if (node === parent.L) { + sibling = parent.R; + if (sibling.C) { + sibling.C = false; + parent.C = true; + RedBlackRotateLeft(this, parent); + sibling = parent.R; + } + if ((sibling.L && sibling.L.C) + || (sibling.R && sibling.R.C)) { + if (!sibling.R || !sibling.R.C) { + sibling.L.C = false; + sibling.C = true; + RedBlackRotateRight(this, sibling); + sibling = parent.R; + } + sibling.C = parent.C; + parent.C = sibling.R.C = false; + RedBlackRotateLeft(this, parent); + node = this._; + break; + } + } else { + sibling = parent.L; + if (sibling.C) { + sibling.C = false; + parent.C = true; + RedBlackRotateRight(this, parent); + sibling = parent.L; + } + if ((sibling.L && sibling.L.C) + || (sibling.R && sibling.R.C)) { + if (!sibling.L || !sibling.L.C) { + sibling.R.C = false; + sibling.C = true; + RedBlackRotateLeft(this, sibling); + sibling = parent.L; + } + sibling.C = parent.C; + parent.C = sibling.L.C = false; + RedBlackRotateRight(this, parent); + node = this._; + break; + } + } + sibling.C = true; + node = parent; + parent = parent.U; + } while (!node.C); + + if (node) node.C = false; + } + }; + + function RedBlackRotateLeft(tree, node) { + var p = node, + q = node.R, + parent = p.U; + + if (parent) { + if (parent.L === p) parent.L = q; + else parent.R = q; + } else { + tree._ = q; + } + + q.U = parent; + p.U = q; + p.R = q.L; + if (p.R) p.R.U = p; + q.L = p; + } + + function RedBlackRotateRight(tree, node) { + var p = node, + q = node.L, + parent = p.U; + + if (parent) { + if (parent.L === p) parent.L = q; + else parent.R = q; + } else { + tree._ = q; + } + + q.U = parent; + p.U = q; + p.L = q.R; + if (p.L) p.L.U = p; + q.R = p; + } + + function RedBlackFirst(node) { + while (node.L) node = node.L; + return node; + } + + function createEdge(left, right, v0, v1) { + var edge = [null, null], + index = edges.push(edge) - 1; + edge.left = left; + edge.right = right; + if (v0) setEdgeEnd(edge, left, right, v0); + if (v1) setEdgeEnd(edge, right, left, v1); + cells[left.index].halfedges.push(index); + cells[right.index].halfedges.push(index); + return edge; + } + + function createBorderEdge(left, v0, v1) { + var edge = [v0, v1]; + edge.left = left; + return edge; + } + + function setEdgeEnd(edge, left, right, vertex) { + if (!edge[0] && !edge[1]) { + edge[0] = vertex; + edge.left = left; + edge.right = right; + } else if (edge.left === right) { + edge[1] = vertex; + } else { + edge[0] = vertex; + } + } + + // Liang–Barsky line clipping. + function clipEdge(edge, x0, y0, x1, y1) { + var a = edge[0], + b = edge[1], + ax = a[0], + ay = a[1], + bx = b[0], + by = b[1], + t0 = 0, + t1 = 1, + dx = bx - ax, + dy = by - ay, + r; + + r = x0 - ax; + if (!dx && r > 0) return; + r /= dx; + if (dx < 0) { + if (r < t0) return; + if (r < t1) t1 = r; + } else if (dx > 0) { + if (r > t1) return; + if (r > t0) t0 = r; + } + + r = x1 - ax; + if (!dx && r < 0) return; + r /= dx; + if (dx < 0) { + if (r > t1) return; + if (r > t0) t0 = r; + } else if (dx > 0) { + if (r < t0) return; + if (r < t1) t1 = r; + } + + r = y0 - ay; + if (!dy && r > 0) return; + r /= dy; + if (dy < 0) { + if (r < t0) return; + if (r < t1) t1 = r; + } else if (dy > 0) { + if (r > t1) return; + if (r > t0) t0 = r; + } + + r = y1 - ay; + if (!dy && r < 0) return; + r /= dy; + if (dy < 0) { + if (r > t1) return; + if (r > t0) t0 = r; + } else if (dy > 0) { + if (r < t0) return; + if (r < t1) t1 = r; + } + + if (!(t0 > 0) && !(t1 < 1)) return true; // TODO Better check? + + if (t0 > 0) edge[0] = [ax + t0 * dx, ay + t0 * dy]; + if (t1 < 1) edge[1] = [ax + t1 * dx, ay + t1 * dy]; + return true; + } + + function connectEdge(edge, x0, y0, x1, y1) { + var v1 = edge[1]; + if (v1) return true; + + var v0 = edge[0], + left = edge.left, + right = edge.right, + lx = left[0], + ly = left[1], + rx = right[0], + ry = right[1], + fx = (lx + rx) / 2, + fy = (ly + ry) / 2, + fm, + fb; + + if (ry === ly) { + if (fx < x0 || fx >= x1) return; + if (lx > rx) { + if (!v0) v0 = [fx, y0]; + else if (v0[1] >= y1) return; + v1 = [fx, y1]; + } else { + if (!v0) v0 = [fx, y1]; + else if (v0[1] < y0) return; + v1 = [fx, y0]; + } + } else { + fm = (lx - rx) / (ry - ly); + fb = fy - fm * fx; + if (fm < -1 || fm > 1) { + if (lx > rx) { + if (!v0) v0 = [(y0 - fb) / fm, y0]; + else if (v0[1] >= y1) return; + v1 = [(y1 - fb) / fm, y1]; + } else { + if (!v0) v0 = [(y1 - fb) / fm, y1]; + else if (v0[1] < y0) return; + v1 = [(y0 - fb) / fm, y0]; + } + } else { + if (ly < ry) { + if (!v0) v0 = [x0, fm * x0 + fb]; + else if (v0[0] >= x1) return; + v1 = [x1, fm * x1 + fb]; + } else { + if (!v0) v0 = [x1, fm * x1 + fb]; + else if (v0[0] < x0) return; + v1 = [x0, fm * x0 + fb]; + } + } + } + + edge[0] = v0; + edge[1] = v1; + return true; + } + + function clipEdges(x0, y0, x1, y1) { + var i = edges.length, + edge; + + while (i--) { + if (!connectEdge(edge = edges[i], x0, y0, x1, y1) + || !clipEdge(edge, x0, y0, x1, y1) + || !(Math.abs(edge[0][0] - edge[1][0]) > epsilon$4 + || Math.abs(edge[0][1] - edge[1][1]) > epsilon$4)) { + delete edges[i]; + } + } + } + + function createCell(site) { + return cells[site.index] = { + site: site, + halfedges: [] + }; + } + + function cellHalfedgeAngle(cell, edge) { + var site = cell.site, + va = edge.left, + vb = edge.right; + if (site === vb) vb = va, va = site; + if (vb) return Math.atan2(vb[1] - va[1], vb[0] - va[0]); + if (site === va) va = edge[1], vb = edge[0]; + else va = edge[0], vb = edge[1]; + return Math.atan2(va[0] - vb[0], vb[1] - va[1]); + } + + function cellHalfedgeStart(cell, edge) { + return edge[+(edge.left !== cell.site)]; + } + + function cellHalfedgeEnd(cell, edge) { + return edge[+(edge.left === cell.site)]; + } + + function sortCellHalfedges() { + for (var i = 0, n = cells.length, cell, halfedges, j, m; i < n; ++i) { + if ((cell = cells[i]) && (m = (halfedges = cell.halfedges).length)) { + var index = new Array(m), + array = new Array(m); + for (j = 0; j < m; ++j) index[j] = j, array[j] = cellHalfedgeAngle(cell, edges[halfedges[j]]); + index.sort(function(i, j) { return array[j] - array[i]; }); + for (j = 0; j < m; ++j) array[j] = halfedges[index[j]]; + for (j = 0; j < m; ++j) halfedges[j] = array[j]; + } + } + } + + function clipCells(x0, y0, x1, y1) { + var nCells = cells.length, + iCell, + cell, + site, + iHalfedge, + halfedges, + nHalfedges, + start, + startX, + startY, + end, + endX, + endY, + cover = true; + + for (iCell = 0; iCell < nCells; ++iCell) { + if (cell = cells[iCell]) { + site = cell.site; + halfedges = cell.halfedges; + iHalfedge = halfedges.length; + + // Remove any dangling clipped edges. + while (iHalfedge--) { + if (!edges[halfedges[iHalfedge]]) { + halfedges.splice(iHalfedge, 1); + } + } + + // Insert any border edges as necessary. + iHalfedge = 0, nHalfedges = halfedges.length; + while (iHalfedge < nHalfedges) { + end = cellHalfedgeEnd(cell, edges[halfedges[iHalfedge]]), endX = end[0], endY = end[1]; + start = cellHalfedgeStart(cell, edges[halfedges[++iHalfedge % nHalfedges]]), startX = start[0], startY = start[1]; + if (Math.abs(endX - startX) > epsilon$4 || Math.abs(endY - startY) > epsilon$4) { + halfedges.splice(iHalfedge, 0, edges.push(createBorderEdge(site, end, + Math.abs(endX - x0) < epsilon$4 && y1 - endY > epsilon$4 ? [x0, Math.abs(startX - x0) < epsilon$4 ? startY : y1] + : Math.abs(endY - y1) < epsilon$4 && x1 - endX > epsilon$4 ? [Math.abs(startY - y1) < epsilon$4 ? startX : x1, y1] + : Math.abs(endX - x1) < epsilon$4 && endY - y0 > epsilon$4 ? [x1, Math.abs(startX - x1) < epsilon$4 ? startY : y0] + : Math.abs(endY - y0) < epsilon$4 && endX - x0 > epsilon$4 ? [Math.abs(startY - y0) < epsilon$4 ? startX : x0, y0] + : null)) - 1); + ++nHalfedges; + } + } + + if (nHalfedges) cover = false; + } + } + + // If there weren’t any edges, have the closest site cover the extent. + // It doesn’t matter which corner of the extent we measure! + if (cover) { + var dx, dy, d2, dc = Infinity; + + for (iCell = 0, cover = null; iCell < nCells; ++iCell) { + if (cell = cells[iCell]) { + site = cell.site; + dx = site[0] - x0; + dy = site[1] - y0; + d2 = dx * dx + dy * dy; + if (d2 < dc) dc = d2, cover = cell; + } + } + + if (cover) { + var v00 = [x0, y0], v01 = [x0, y1], v11 = [x1, y1], v10 = [x1, y0]; + cover.halfedges.push( + edges.push(createBorderEdge(site = cover.site, v00, v01)) - 1, + edges.push(createBorderEdge(site, v01, v11)) - 1, + edges.push(createBorderEdge(site, v11, v10)) - 1, + edges.push(createBorderEdge(site, v10, v00)) - 1 + ); + } + } + + // Lastly delete any cells with no edges; these were entirely clipped. + for (iCell = 0; iCell < nCells; ++iCell) { + if (cell = cells[iCell]) { + if (!cell.halfedges.length) { + delete cells[iCell]; + } + } + } + } + + var circlePool = []; + + var firstCircle; + + function Circle() { + RedBlackNode(this); + this.x = + this.y = + this.arc = + this.site = + this.cy = null; + } + + function attachCircle(arc) { + var lArc = arc.P, + rArc = arc.N; + + if (!lArc || !rArc) return; + + var lSite = lArc.site, + cSite = arc.site, + rSite = rArc.site; + + if (lSite === rSite) return; + + var bx = cSite[0], + by = cSite[1], + ax = lSite[0] - bx, + ay = lSite[1] - by, + cx = rSite[0] - bx, + cy = rSite[1] - by; + + var d = 2 * (ax * cy - ay * cx); + if (d >= -epsilon2$2) return; + + var ha = ax * ax + ay * ay, + hc = cx * cx + cy * cy, + x = (cy * ha - ay * hc) / d, + y = (ax * hc - cx * ha) / d; + + var circle = circlePool.pop() || new Circle; + circle.arc = arc; + circle.site = cSite; + circle.x = x + bx; + circle.y = (circle.cy = y + by) + Math.sqrt(x * x + y * y); // y bottom + + arc.circle = circle; + + var before = null, + node = circles._; + + while (node) { + if (circle.y < node.y || (circle.y === node.y && circle.x <= node.x)) { + if (node.L) node = node.L; + else { before = node.P; break; } + } else { + if (node.R) node = node.R; + else { before = node; break; } + } + } + + circles.insert(before, circle); + if (!before) firstCircle = circle; + } + + function detachCircle(arc) { + var circle = arc.circle; + if (circle) { + if (!circle.P) firstCircle = circle.N; + circles.remove(circle); + circlePool.push(circle); + RedBlackNode(circle); + arc.circle = null; + } + } + + var beachPool = []; + + function Beach() { + RedBlackNode(this); + this.edge = + this.site = + this.circle = null; + } + + function createBeach(site) { + var beach = beachPool.pop() || new Beach; + beach.site = site; + return beach; + } + + function detachBeach(beach) { + detachCircle(beach); + beaches.remove(beach); + beachPool.push(beach); + RedBlackNode(beach); + } + + function removeBeach(beach) { + var circle = beach.circle, + x = circle.x, + y = circle.cy, + vertex = [x, y], + previous = beach.P, + next = beach.N, + disappearing = [beach]; + + detachBeach(beach); + + var lArc = previous; + while (lArc.circle + && Math.abs(x - lArc.circle.x) < epsilon$4 + && Math.abs(y - lArc.circle.cy) < epsilon$4) { + previous = lArc.P; + disappearing.unshift(lArc); + detachBeach(lArc); + lArc = previous; + } + + disappearing.unshift(lArc); + detachCircle(lArc); + + var rArc = next; + while (rArc.circle + && Math.abs(x - rArc.circle.x) < epsilon$4 + && Math.abs(y - rArc.circle.cy) < epsilon$4) { + next = rArc.N; + disappearing.push(rArc); + detachBeach(rArc); + rArc = next; + } + + disappearing.push(rArc); + detachCircle(rArc); + + var nArcs = disappearing.length, + iArc; + for (iArc = 1; iArc < nArcs; ++iArc) { + rArc = disappearing[iArc]; + lArc = disappearing[iArc - 1]; + setEdgeEnd(rArc.edge, lArc.site, rArc.site, vertex); + } + + lArc = disappearing[0]; + rArc = disappearing[nArcs - 1]; + rArc.edge = createEdge(lArc.site, rArc.site, null, vertex); + + attachCircle(lArc); + attachCircle(rArc); + } + + function addBeach(site) { + var x = site[0], + directrix = site[1], + lArc, + rArc, + dxl, + dxr, + node = beaches._; + + while (node) { + dxl = leftBreakPoint(node, directrix) - x; + if (dxl > epsilon$4) node = node.L; else { + dxr = x - rightBreakPoint(node, directrix); + if (dxr > epsilon$4) { + if (!node.R) { + lArc = node; + break; + } + node = node.R; + } else { + if (dxl > -epsilon$4) { + lArc = node.P; + rArc = node; + } else if (dxr > -epsilon$4) { + lArc = node; + rArc = node.N; + } else { + lArc = rArc = node; + } + break; + } + } + } + + createCell(site); + var newArc = createBeach(site); + beaches.insert(lArc, newArc); + + if (!lArc && !rArc) return; + + if (lArc === rArc) { + detachCircle(lArc); + rArc = createBeach(lArc.site); + beaches.insert(newArc, rArc); + newArc.edge = rArc.edge = createEdge(lArc.site, newArc.site); + attachCircle(lArc); + attachCircle(rArc); + return; + } + + if (!rArc) { // && lArc + newArc.edge = createEdge(lArc.site, newArc.site); + return; + } + + // else lArc !== rArc + detachCircle(lArc); + detachCircle(rArc); + + var lSite = lArc.site, + ax = lSite[0], + ay = lSite[1], + bx = site[0] - ax, + by = site[1] - ay, + rSite = rArc.site, + cx = rSite[0] - ax, + cy = rSite[1] - ay, + d = 2 * (bx * cy - by * cx), + hb = bx * bx + by * by, + hc = cx * cx + cy * cy, + vertex = [(cy * hb - by * hc) / d + ax, (bx * hc - cx * hb) / d + ay]; + + setEdgeEnd(rArc.edge, lSite, rSite, vertex); + newArc.edge = createEdge(lSite, site, null, vertex); + rArc.edge = createEdge(site, rSite, null, vertex); + attachCircle(lArc); + attachCircle(rArc); + } + + function leftBreakPoint(arc, directrix) { + var site = arc.site, + rfocx = site[0], + rfocy = site[1], + pby2 = rfocy - directrix; + + if (!pby2) return rfocx; + + var lArc = arc.P; + if (!lArc) return -Infinity; + + site = lArc.site; + var lfocx = site[0], + lfocy = site[1], + plby2 = lfocy - directrix; + + if (!plby2) return lfocx; + + var hl = lfocx - rfocx, + aby2 = 1 / pby2 - 1 / plby2, + b = hl / plby2; + + if (aby2) return (-b + Math.sqrt(b * b - 2 * aby2 * (hl * hl / (-2 * plby2) - lfocy + plby2 / 2 + rfocy - pby2 / 2))) / aby2 + rfocx; + + return (rfocx + lfocx) / 2; + } + + function rightBreakPoint(arc, directrix) { + var rArc = arc.N; + if (rArc) return leftBreakPoint(rArc, directrix); + var site = arc.site; + return site[1] === directrix ? site[0] : Infinity; + } + + var epsilon$4 = 1e-6; + var epsilon2$2 = 1e-12; + var beaches; + var cells; + var circles; + var edges; + + function triangleArea(a, b, c) { + return (a[0] - c[0]) * (b[1] - a[1]) - (a[0] - b[0]) * (c[1] - a[1]); + } + + function lexicographic(a, b) { + return b[1] - a[1] + || b[0] - a[0]; + } + + function Diagram(sites, extent) { + var site = sites.sort(lexicographic).pop(), + x, + y, + circle; + + edges = []; + cells = new Array(sites.length); + beaches = new RedBlackTree; + circles = new RedBlackTree; + + while (true) { + circle = firstCircle; + if (site && (!circle || site[1] < circle.y || (site[1] === circle.y && site[0] < circle.x))) { + if (site[0] !== x || site[1] !== y) { + addBeach(site); + x = site[0], y = site[1]; + } + site = sites.pop(); + } else if (circle) { + removeBeach(circle.arc); + } else { + break; + } + } + + sortCellHalfedges(); + + if (extent) { + var x0 = +extent[0][0], + y0 = +extent[0][1], + x1 = +extent[1][0], + y1 = +extent[1][1]; + clipEdges(x0, y0, x1, y1); + clipCells(x0, y0, x1, y1); + } + + this.edges = edges; + this.cells = cells; + + beaches = + circles = + edges = + cells = null; + } + + Diagram.prototype = { + constructor: Diagram, + + polygons: function() { + var edges = this.edges; + + return this.cells.map(function(cell) { + var polygon = cell.halfedges.map(function(i) { return cellHalfedgeStart(cell, edges[i]); }); + polygon.data = cell.site.data; + return polygon; + }); + }, + + triangles: function() { + var triangles = [], + edges = this.edges; + + this.cells.forEach(function(cell, i) { + if (!(m = (halfedges = cell.halfedges).length)) return; + var site = cell.site, + halfedges, + j = -1, + m, + s0, + e1 = edges[halfedges[m - 1]], + s1 = e1.left === site ? e1.right : e1.left; + + while (++j < m) { + s0 = s1; + e1 = edges[halfedges[j]]; + s1 = e1.left === site ? e1.right : e1.left; + if (s0 && s1 && i < s0.index && i < s1.index && triangleArea(site, s0, s1) < 0) { + triangles.push([site.data, s0.data, s1.data]); + } + } + }); + + return triangles; + }, + + links: function() { + return this.edges.filter(function(edge) { + return edge.right; + }).map(function(edge) { + return { + source: edge.left.data, + target: edge.right.data + }; + }); + }, + + find: function(x, y, radius) { + var that = this, i0, i1 = that._found || 0, n = that.cells.length, cell; + + // Use the previously-found cell, or start with an arbitrary one. + while (!(cell = that.cells[i1])) if (++i1 >= n) return null; + var dx = x - cell.site[0], dy = y - cell.site[1], d2 = dx * dx + dy * dy; + + // Traverse the half-edges to find a closer cell, if any. + do { + cell = that.cells[i0 = i1], i1 = null; + cell.halfedges.forEach(function(e) { + var edge = that.edges[e], v = edge.left; + if ((v === cell.site || !v) && !(v = edge.right)) return; + var vx = x - v[0], vy = y - v[1], v2 = vx * vx + vy * vy; + if (v2 < d2) d2 = v2, i1 = v.index; + }); + } while (i1 !== null); + + that._found = i0; + + return radius == null || d2 <= radius * radius ? cell.site : null; + } + }; + + function voronoi() { + var x = x$4, + y = y$4, + extent = null; + + function voronoi(data) { + return new Diagram(data.map(function(d, i) { + var s = [Math.round(x(d, i, data) / epsilon$4) * epsilon$4, Math.round(y(d, i, data) / epsilon$4) * epsilon$4]; + s.index = i; + s.data = d; + return s; + }), extent); + } + + voronoi.polygons = function(data) { + return voronoi(data).polygons(); + }; + + voronoi.links = function(data) { + return voronoi(data).links(); + }; + + voronoi.triangles = function(data) { + return voronoi(data).triangles(); + }; + + voronoi.x = function(_) { + return arguments.length ? (x = typeof _ === "function" ? _ : constant$c(+_), voronoi) : x; + }; + + voronoi.y = function(_) { + return arguments.length ? (y = typeof _ === "function" ? _ : constant$c(+_), voronoi) : y; + }; + + voronoi.extent = function(_) { + return arguments.length ? (extent = _ == null ? null : [[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]], voronoi) : extent && [[extent[0][0], extent[0][1]], [extent[1][0], extent[1][1]]]; + }; + + voronoi.size = function(_) { + return arguments.length ? (extent = _ == null ? null : [[0, 0], [+_[0], +_[1]]], voronoi) : extent && [extent[1][0] - extent[0][0], extent[1][1] - extent[0][1]]; + }; + + return voronoi; + } + + function constant$d(x) { + return function() { + return x; + }; + } + + function ZoomEvent(target, type, transform) { + this.target = target; + this.type = type; + this.transform = transform; + } + + function Transform(k, x, y) { + this.k = k; + this.x = x; + this.y = y; + } + + Transform.prototype = { + constructor: Transform, + scale: function(k) { + return k === 1 ? this : new Transform(this.k * k, this.x, this.y); + }, + translate: function(x, y) { + return x === 0 & y === 0 ? this : new Transform(this.k, this.x + this.k * x, this.y + this.k * y); + }, + apply: function(point) { + return [point[0] * this.k + this.x, point[1] * this.k + this.y]; + }, + applyX: function(x) { + return x * this.k + this.x; + }, + applyY: function(y) { + return y * this.k + this.y; + }, + invert: function(location) { + return [(location[0] - this.x) / this.k, (location[1] - this.y) / this.k]; + }, + invertX: function(x) { + return (x - this.x) / this.k; + }, + invertY: function(y) { + return (y - this.y) / this.k; + }, + rescaleX: function(x) { + return x.copy().domain(x.range().map(this.invertX, this).map(x.invert, x)); + }, + rescaleY: function(y) { + return y.copy().domain(y.range().map(this.invertY, this).map(y.invert, y)); + }, + toString: function() { + return "translate(" + this.x + "," + this.y + ") scale(" + this.k + ")"; + } + }; + + var identity$9 = new Transform(1, 0, 0); + + transform$1.prototype = Transform.prototype; + + function transform$1(node) { + while (!node.__zoom) if (!(node = node.parentNode)) return identity$9; + return node.__zoom; + } + + function nopropagation$2() { + event.stopImmediatePropagation(); + } + + function noevent$2() { + event.preventDefault(); + event.stopImmediatePropagation(); + } + + // Ignore right-click, since that should open the context menu. + function defaultFilter$2() { + return !event.ctrlKey && !event.button; + } + + function defaultExtent$1() { + var e = this; + if (e instanceof SVGElement) { + e = e.ownerSVGElement || e; + if (e.hasAttribute("viewBox")) { + e = e.viewBox.baseVal; + return [[e.x, e.y], [e.x + e.width, e.y + e.height]]; + } + return [[0, 0], [e.width.baseVal.value, e.height.baseVal.value]]; + } + return [[0, 0], [e.clientWidth, e.clientHeight]]; + } + + function defaultTransform() { + return this.__zoom || identity$9; + } + + function defaultWheelDelta() { + return -event.deltaY * (event.deltaMode === 1 ? 0.05 : event.deltaMode ? 1 : 0.002); + } + + function defaultTouchable$2() { + return navigator.maxTouchPoints || ("ontouchstart" in this); + } + + function defaultConstrain(transform, extent, translateExtent) { + var dx0 = transform.invertX(extent[0][0]) - translateExtent[0][0], + dx1 = transform.invertX(extent[1][0]) - translateExtent[1][0], + dy0 = transform.invertY(extent[0][1]) - translateExtent[0][1], + dy1 = transform.invertY(extent[1][1]) - translateExtent[1][1]; + return transform.translate( + dx1 > dx0 ? (dx0 + dx1) / 2 : Math.min(0, dx0) || Math.max(0, dx1), + dy1 > dy0 ? (dy0 + dy1) / 2 : Math.min(0, dy0) || Math.max(0, dy1) + ); + } + + function zoom() { + var filter = defaultFilter$2, + extent = defaultExtent$1, + constrain = defaultConstrain, + wheelDelta = defaultWheelDelta, + touchable = defaultTouchable$2, + scaleExtent = [0, Infinity], + translateExtent = [[-Infinity, -Infinity], [Infinity, Infinity]], + duration = 250, + interpolate = interpolateZoom, + listeners = dispatch("start", "zoom", "end"), + touchstarting, + touchending, + touchDelay = 500, + wheelDelay = 150, + clickDistance2 = 0; + + function zoom(selection) { + selection + .property("__zoom", defaultTransform) + .on("wheel.zoom", wheeled) + .on("mousedown.zoom", mousedowned) + .on("dblclick.zoom", dblclicked) + .filter(touchable) + .on("touchstart.zoom", touchstarted) + .on("touchmove.zoom", touchmoved) + .on("touchend.zoom touchcancel.zoom", touchended) + .style("touch-action", "none") + .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)"); + } + + zoom.transform = function(collection, transform, point) { + var selection = collection.selection ? collection.selection() : collection; + selection.property("__zoom", defaultTransform); + if (collection !== selection) { + schedule(collection, transform, point); + } else { + selection.interrupt().each(function() { + gesture(this, arguments) + .start() + .zoom(null, typeof transform === "function" ? transform.apply(this, arguments) : transform) + .end(); + }); + } + }; + + zoom.scaleBy = function(selection, k, p) { + zoom.scaleTo(selection, function() { + var k0 = this.__zoom.k, + k1 = typeof k === "function" ? k.apply(this, arguments) : k; + return k0 * k1; + }, p); + }; + + zoom.scaleTo = function(selection, k, p) { + zoom.transform(selection, function() { + var e = extent.apply(this, arguments), + t0 = this.__zoom, + p0 = p == null ? centroid(e) : typeof p === "function" ? p.apply(this, arguments) : p, + p1 = t0.invert(p0), + k1 = typeof k === "function" ? k.apply(this, arguments) : k; + return constrain(translate(scale(t0, k1), p0, p1), e, translateExtent); + }, p); + }; + + zoom.translateBy = function(selection, x, y) { + zoom.transform(selection, function() { + return constrain(this.__zoom.translate( + typeof x === "function" ? x.apply(this, arguments) : x, + typeof y === "function" ? y.apply(this, arguments) : y + ), extent.apply(this, arguments), translateExtent); + }); + }; + + zoom.translateTo = function(selection, x, y, p) { + zoom.transform(selection, function() { + var e = extent.apply(this, arguments), + t = this.__zoom, + p0 = p == null ? centroid(e) : typeof p === "function" ? p.apply(this, arguments) : p; + return constrain(identity$9.translate(p0[0], p0[1]).scale(t.k).translate( + typeof x === "function" ? -x.apply(this, arguments) : -x, + typeof y === "function" ? -y.apply(this, arguments) : -y + ), e, translateExtent); + }, p); + }; + + function scale(transform, k) { + k = Math.max(scaleExtent[0], Math.min(scaleExtent[1], k)); + return k === transform.k ? transform : new Transform(k, transform.x, transform.y); + } + + function translate(transform, p0, p1) { + var x = p0[0] - p1[0] * transform.k, y = p0[1] - p1[1] * transform.k; + return x === transform.x && y === transform.y ? transform : new Transform(transform.k, x, y); + } + + function centroid(extent) { + return [(+extent[0][0] + +extent[1][0]) / 2, (+extent[0][1] + +extent[1][1]) / 2]; + } + + function schedule(transition, transform, point) { + transition + .on("start.zoom", function() { gesture(this, arguments).start(); }) + .on("interrupt.zoom end.zoom", function() { gesture(this, arguments).end(); }) + .tween("zoom", function() { + var that = this, + args = arguments, + g = gesture(that, args), + e = extent.apply(that, args), + p = point == null ? centroid(e) : typeof point === "function" ? point.apply(that, args) : point, + w = Math.max(e[1][0] - e[0][0], e[1][1] - e[0][1]), + a = that.__zoom, + b = typeof transform === "function" ? transform.apply(that, args) : transform, + i = interpolate(a.invert(p).concat(w / a.k), b.invert(p).concat(w / b.k)); + return function(t) { + if (t === 1) t = b; // Avoid rounding error on end. + else { var l = i(t), k = w / l[2]; t = new Transform(k, p[0] - l[0] * k, p[1] - l[1] * k); } + g.zoom(null, t); + }; + }); + } + + function gesture(that, args, clean) { + return (!clean && that.__zooming) || new Gesture(that, args); + } + + function Gesture(that, args) { + this.that = that; + this.args = args; + this.active = 0; + this.extent = extent.apply(that, args); + this.taps = 0; + } + + Gesture.prototype = { + start: function() { + if (++this.active === 1) { + this.that.__zooming = this; + this.emit("start"); + } + return this; + }, + zoom: function(key, transform) { + if (this.mouse && key !== "mouse") this.mouse[1] = transform.invert(this.mouse[0]); + if (this.touch0 && key !== "touch") this.touch0[1] = transform.invert(this.touch0[0]); + if (this.touch1 && key !== "touch") this.touch1[1] = transform.invert(this.touch1[0]); + this.that.__zoom = transform; + this.emit("zoom"); + return this; + }, + end: function() { + if (--this.active === 0) { + delete this.that.__zooming; + this.emit("end"); + } + return this; + }, + emit: function(type) { + customEvent(new ZoomEvent(zoom, type, this.that.__zoom), listeners.apply, listeners, [type, this.that, this.args]); + } + }; + + function wheeled() { + if (!filter.apply(this, arguments)) return; + var g = gesture(this, arguments), + t = this.__zoom, + k = Math.max(scaleExtent[0], Math.min(scaleExtent[1], t.k * Math.pow(2, wheelDelta.apply(this, arguments)))), + p = mouse(this); + + // If the mouse is in the same location as before, reuse it. + // If there were recent wheel events, reset the wheel idle timeout. + if (g.wheel) { + if (g.mouse[0][0] !== p[0] || g.mouse[0][1] !== p[1]) { + g.mouse[1] = t.invert(g.mouse[0] = p); + } + clearTimeout(g.wheel); + } + + // If this wheel event won’t trigger a transform change, ignore it. + else if (t.k === k) return; + + // Otherwise, capture the mouse point and location at the start. + else { + g.mouse = [p, t.invert(p)]; + interrupt(this); + g.start(); + } + + noevent$2(); + g.wheel = setTimeout(wheelidled, wheelDelay); + g.zoom("mouse", constrain(translate(scale(t, k), g.mouse[0], g.mouse[1]), g.extent, translateExtent)); + + function wheelidled() { + g.wheel = null; + g.end(); + } + } + + function mousedowned() { + if (touchending || !filter.apply(this, arguments)) return; + var g = gesture(this, arguments, true), + v = select(event.view).on("mousemove.zoom", mousemoved, true).on("mouseup.zoom", mouseupped, true), + p = mouse(this), + x0 = event.clientX, + y0 = event.clientY; + + dragDisable(event.view); + nopropagation$2(); + g.mouse = [p, this.__zoom.invert(p)]; + interrupt(this); + g.start(); + + function mousemoved() { + noevent$2(); + if (!g.moved) { + var dx = event.clientX - x0, dy = event.clientY - y0; + g.moved = dx * dx + dy * dy > clickDistance2; + } + g.zoom("mouse", constrain(translate(g.that.__zoom, g.mouse[0] = mouse(g.that), g.mouse[1]), g.extent, translateExtent)); + } + + function mouseupped() { + v.on("mousemove.zoom mouseup.zoom", null); + yesdrag(event.view, g.moved); + noevent$2(); + g.end(); + } + } + + function dblclicked() { + if (!filter.apply(this, arguments)) return; + var t0 = this.__zoom, + p0 = mouse(this), + p1 = t0.invert(p0), + k1 = t0.k * (event.shiftKey ? 0.5 : 2), + t1 = constrain(translate(scale(t0, k1), p0, p1), extent.apply(this, arguments), translateExtent); + + noevent$2(); + if (duration > 0) select(this).transition().duration(duration).call(schedule, t1, p0); + else select(this).call(zoom.transform, t1); + } + + function touchstarted() { + if (!filter.apply(this, arguments)) return; + var touches = event.touches, + n = touches.length, + g = gesture(this, arguments, event.changedTouches.length === n), + started, i, t, p; + + nopropagation$2(); + for (i = 0; i < n; ++i) { + t = touches[i], p = touch(this, touches, t.identifier); + p = [p, this.__zoom.invert(p), t.identifier]; + if (!g.touch0) g.touch0 = p, started = true, g.taps = 1 + !!touchstarting; + else if (!g.touch1 && g.touch0[2] !== p[2]) g.touch1 = p, g.taps = 0; + } + + if (touchstarting) touchstarting = clearTimeout(touchstarting); + + if (started) { + if (g.taps < 2) touchstarting = setTimeout(function() { touchstarting = null; }, touchDelay); + interrupt(this); + g.start(); + } + } + + function touchmoved() { + if (!this.__zooming) return; + var g = gesture(this, arguments), + touches = event.changedTouches, + n = touches.length, i, t, p, l; + + noevent$2(); + if (touchstarting) touchstarting = clearTimeout(touchstarting); + g.taps = 0; + for (i = 0; i < n; ++i) { + t = touches[i], p = touch(this, touches, t.identifier); + if (g.touch0 && g.touch0[2] === t.identifier) g.touch0[0] = p; + else if (g.touch1 && g.touch1[2] === t.identifier) g.touch1[0] = p; + } + t = g.that.__zoom; + if (g.touch1) { + var p0 = g.touch0[0], l0 = g.touch0[1], + p1 = g.touch1[0], l1 = g.touch1[1], + dp = (dp = p1[0] - p0[0]) * dp + (dp = p1[1] - p0[1]) * dp, + dl = (dl = l1[0] - l0[0]) * dl + (dl = l1[1] - l0[1]) * dl; + t = scale(t, Math.sqrt(dp / dl)); + p = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2]; + l = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2]; + } + else if (g.touch0) p = g.touch0[0], l = g.touch0[1]; + else return; + g.zoom("touch", constrain(translate(t, p, l), g.extent, translateExtent)); + } + + function touchended() { + if (!this.__zooming) return; + var g = gesture(this, arguments), + touches = event.changedTouches, + n = touches.length, i, t; + + nopropagation$2(); + if (touchending) clearTimeout(touchending); + touchending = setTimeout(function() { touchending = null; }, touchDelay); + for (i = 0; i < n; ++i) { + t = touches[i]; + if (g.touch0 && g.touch0[2] === t.identifier) delete g.touch0; + else if (g.touch1 && g.touch1[2] === t.identifier) delete g.touch1; + } + if (g.touch1 && !g.touch0) g.touch0 = g.touch1, delete g.touch1; + if (g.touch0) g.touch0[1] = this.__zoom.invert(g.touch0[0]); + else { + g.end(); + // If this was a dbltap, reroute to the (optional) dblclick.zoom handler. + if (g.taps === 2) { + var p = select(this).on("dblclick.zoom"); + if (p) p.apply(this, arguments); + } + } + } + + zoom.wheelDelta = function(_) { + return arguments.length ? (wheelDelta = typeof _ === "function" ? _ : constant$d(+_), zoom) : wheelDelta; + }; + + zoom.filter = function(_) { + return arguments.length ? (filter = typeof _ === "function" ? _ : constant$d(!!_), zoom) : filter; + }; + + zoom.touchable = function(_) { + return arguments.length ? (touchable = typeof _ === "function" ? _ : constant$d(!!_), zoom) : touchable; + }; + + zoom.extent = function(_) { + return arguments.length ? (extent = typeof _ === "function" ? _ : constant$d([[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]]), zoom) : extent; + }; + + zoom.scaleExtent = function(_) { + return arguments.length ? (scaleExtent[0] = +_[0], scaleExtent[1] = +_[1], zoom) : [scaleExtent[0], scaleExtent[1]]; + }; + + zoom.translateExtent = function(_) { + return arguments.length ? (translateExtent[0][0] = +_[0][0], translateExtent[1][0] = +_[1][0], translateExtent[0][1] = +_[0][1], translateExtent[1][1] = +_[1][1], zoom) : [[translateExtent[0][0], translateExtent[0][1]], [translateExtent[1][0], translateExtent[1][1]]]; + }; + + zoom.constrain = function(_) { + return arguments.length ? (constrain = _, zoom) : constrain; + }; + + zoom.duration = function(_) { + return arguments.length ? (duration = +_, zoom) : duration; + }; + + zoom.interpolate = function(_) { + return arguments.length ? (interpolate = _, zoom) : interpolate; + }; + + zoom.on = function() { + var value = listeners.on.apply(listeners, arguments); + return value === listeners ? zoom : value; + }; + + zoom.clickDistance = function(_) { + return arguments.length ? (clickDistance2 = (_ = +_) * _, zoom) : Math.sqrt(clickDistance2); + }; + + return zoom; + } + + var d3 = /*#__PURE__*/Object.freeze({ + __proto__: null, + version: version, + bisect: bisectRight, + bisectRight: bisectRight, + bisectLeft: bisectLeft, + ascending: ascending, + bisector: bisector, + cross: cross, + descending: descending, + deviation: deviation, + extent: extent, + histogram: histogram, + thresholdFreedmanDiaconis: freedmanDiaconis, + thresholdScott: scott, + thresholdSturges: thresholdSturges, + max: max, + mean: mean, + median: median, + merge: merge, + min: min, + pairs: pairs, + permute: permute, + quantile: threshold, + range: sequence, + scan: scan, + shuffle: shuffle, + sum: sum, + ticks: ticks, + tickIncrement: tickIncrement, + tickStep: tickStep, + transpose: transpose, + variance: variance, + zip: zip, + axisTop: axisTop, + axisRight: axisRight, + axisBottom: axisBottom, + axisLeft: axisLeft, + brush: brush, + brushX: brushX, + brushY: brushY, + brushSelection: brushSelection, + chord: chord, + ribbon: ribbon, + nest: nest, + set: set$2, + map: map$1, + keys: keys, + values: values, + entries: entries, + color: color, + rgb: rgb, + hsl: hsl, + lab: lab, + hcl: hcl, + lch: lch, + gray: gray, + cubehelix: cubehelix, + contours: contours, + contourDensity: density, + dispatch: dispatch, + drag: drag, + dragDisable: dragDisable, + dragEnable: yesdrag, + dsvFormat: dsvFormat, + csvParse: csvParse, + csvParseRows: csvParseRows, + csvFormat: csvFormat, + csvFormatBody: csvFormatBody, + csvFormatRows: csvFormatRows, + csvFormatRow: csvFormatRow, + csvFormatValue: csvFormatValue, + tsvParse: tsvParse, + tsvParseRows: tsvParseRows, + tsvFormat: tsvFormat, + tsvFormatBody: tsvFormatBody, + tsvFormatRows: tsvFormatRows, + tsvFormatRow: tsvFormatRow, + tsvFormatValue: tsvFormatValue, + autoType: autoType, + easeLinear: linear$1, + easeQuad: quadInOut, + easeQuadIn: quadIn, + easeQuadOut: quadOut, + easeQuadInOut: quadInOut, + easeCubic: cubicInOut, + easeCubicIn: cubicIn, + easeCubicOut: cubicOut, + easeCubicInOut: cubicInOut, + easePoly: polyInOut, + easePolyIn: polyIn, + easePolyOut: polyOut, + easePolyInOut: polyInOut, + easeSin: sinInOut, + easeSinIn: sinIn, + easeSinOut: sinOut, + easeSinInOut: sinInOut, + easeExp: expInOut, + easeExpIn: expIn, + easeExpOut: expOut, + easeExpInOut: expInOut, + easeCircle: circleInOut, + easeCircleIn: circleIn, + easeCircleOut: circleOut, + easeCircleInOut: circleInOut, + easeBounce: bounceOut, + easeBounceIn: bounceIn, + easeBounceOut: bounceOut, + easeBounceInOut: bounceInOut, + easeBack: backInOut, + easeBackIn: backIn, + easeBackOut: backOut, + easeBackInOut: backInOut, + easeElastic: elasticOut, + easeElasticIn: elasticIn, + easeElasticOut: elasticOut, + easeElasticInOut: elasticInOut, + blob: blob, + buffer: buffer, + dsv: dsv, + csv: csv$1, + tsv: tsv$1, + image: image, + json: json, + text: text, + xml: xml, + html: html, + svg: svg, + forceCenter: center$1, + forceCollide: collide, + forceLink: link, + forceManyBody: manyBody, + forceRadial: radial, + forceSimulation: simulation, + forceX: x$2, + forceY: y$2, + formatDefaultLocale: defaultLocale, + get format () { return format; }, + get formatPrefix () { return formatPrefix; }, + formatLocale: formatLocale, + formatSpecifier: formatSpecifier, + FormatSpecifier: FormatSpecifier, + precisionFixed: precisionFixed, + precisionPrefix: precisionPrefix, + precisionRound: precisionRound, + geoArea: area$1, + geoBounds: bounds, + geoCentroid: centroid, + geoCircle: circle, + geoClipAntimeridian: clipAntimeridian, + geoClipCircle: clipCircle, + geoClipExtent: extent$1, + geoClipRectangle: clipRectangle, + geoContains: contains$1, + geoDistance: distance, + geoGraticule: graticule, + geoGraticule10: graticule10, + geoInterpolate: interpolate$1, + geoLength: length$1, + geoPath: index$1, + geoAlbers: albers, + geoAlbersUsa: albersUsa, + geoAzimuthalEqualArea: azimuthalEqualArea, + geoAzimuthalEqualAreaRaw: azimuthalEqualAreaRaw, + geoAzimuthalEquidistant: azimuthalEquidistant, + geoAzimuthalEquidistantRaw: azimuthalEquidistantRaw, + geoConicConformal: conicConformal, + geoConicConformalRaw: conicConformalRaw, + geoConicEqualArea: conicEqualArea, + geoConicEqualAreaRaw: conicEqualAreaRaw, + geoConicEquidistant: conicEquidistant, + geoConicEquidistantRaw: conicEquidistantRaw, + geoEqualEarth: equalEarth, + geoEqualEarthRaw: equalEarthRaw, + geoEquirectangular: equirectangular, + geoEquirectangularRaw: equirectangularRaw, + geoGnomonic: gnomonic, + geoGnomonicRaw: gnomonicRaw, + geoIdentity: identity$5, + geoProjection: projection, + geoProjectionMutator: projectionMutator, + geoMercator: mercator, + geoMercatorRaw: mercatorRaw, + geoNaturalEarth1: naturalEarth1, + geoNaturalEarth1Raw: naturalEarth1Raw, + geoOrthographic: orthographic, + geoOrthographicRaw: orthographicRaw, + geoStereographic: stereographic, + geoStereographicRaw: stereographicRaw, + geoTransverseMercator: transverseMercator, + geoTransverseMercatorRaw: transverseMercatorRaw, + geoRotation: rotation, + geoStream: geoStream, + geoTransform: transform, + cluster: cluster, + hierarchy: hierarchy, + pack: index$2, + packSiblings: siblings, + packEnclose: enclose, + partition: partition, + stratify: stratify, + tree: tree, + treemap: index$3, + treemapBinary: binary, + treemapDice: treemapDice, + treemapSlice: treemapSlice, + treemapSliceDice: sliceDice, + treemapSquarify: squarify, + treemapResquarify: resquarify, + interpolate: interpolateValue, + interpolateArray: array$1, + interpolateBasis: basis$1, + interpolateBasisClosed: basisClosed, + interpolateDate: date, + interpolateDiscrete: discrete, + interpolateHue: hue$1, + interpolateNumber: interpolateNumber, + interpolateNumberArray: numberArray, + interpolateObject: object, + interpolateRound: interpolateRound, + interpolateString: interpolateString, + interpolateTransformCss: interpolateTransformCss, + interpolateTransformSvg: interpolateTransformSvg, + interpolateZoom: interpolateZoom, + interpolateRgb: interpolateRgb, + interpolateRgbBasis: rgbBasis, + interpolateRgbBasisClosed: rgbBasisClosed, + interpolateHsl: hsl$2, + interpolateHslLong: hslLong, + interpolateLab: lab$1, + interpolateHcl: hcl$2, + interpolateHclLong: hclLong, + interpolateCubehelix: cubehelix$2, + interpolateCubehelixLong: cubehelixLong, + piecewise: piecewise, + quantize: quantize, + path: path, + polygonArea: area$2, + polygonCentroid: centroid$1, + polygonHull: hull, + polygonContains: contains$2, + polygonLength: length$2, + quadtree: quadtree, + randomUniform: uniform, + randomNormal: normal, + randomLogNormal: logNormal, + randomBates: bates, + randomIrwinHall: irwinHall, + randomExponential: exponential$1, + scaleBand: band, + scalePoint: point$1, + scaleIdentity: identity$7, + scaleLinear: linear$2, + scaleLog: log$1, + scaleSymlog: symlog, + scaleOrdinal: ordinal, + scaleImplicit: implicit, + scalePow: pow$1, + scaleSqrt: sqrt$1, + scaleQuantile: quantile, + scaleQuantize: quantize$1, + scaleThreshold: threshold$1, + scaleTime: time, + scaleUtc: utcTime, + scaleSequential: sequential, + scaleSequentialLog: sequentialLog, + scaleSequentialPow: sequentialPow, + scaleSequentialSqrt: sequentialSqrt, + scaleSequentialSymlog: sequentialSymlog, + scaleSequentialQuantile: sequentialQuantile, + scaleDiverging: diverging, + scaleDivergingLog: divergingLog, + scaleDivergingPow: divergingPow, + scaleDivergingSqrt: divergingSqrt, + scaleDivergingSymlog: divergingSymlog, + tickFormat: tickFormat, + schemeCategory10: category10, + schemeAccent: Accent, + schemeDark2: Dark2, + schemePaired: Paired, + schemePastel1: Pastel1, + schemePastel2: Pastel2, + schemeSet1: Set1, + schemeSet2: Set2, + schemeSet3: Set3, + schemeTableau10: Tableau10, + interpolateBrBG: BrBG, + schemeBrBG: scheme, + interpolatePRGn: PRGn, + schemePRGn: scheme$1, + interpolatePiYG: PiYG, + schemePiYG: scheme$2, + interpolatePuOr: PuOr, + schemePuOr: scheme$3, + interpolateRdBu: RdBu, + schemeRdBu: scheme$4, + interpolateRdGy: RdGy, + schemeRdGy: scheme$5, + interpolateRdYlBu: RdYlBu, + schemeRdYlBu: scheme$6, + interpolateRdYlGn: RdYlGn, + schemeRdYlGn: scheme$7, + interpolateSpectral: Spectral, + schemeSpectral: scheme$8, + interpolateBuGn: BuGn, + schemeBuGn: scheme$9, + interpolateBuPu: BuPu, + schemeBuPu: scheme$a, + interpolateGnBu: GnBu, + schemeGnBu: scheme$b, + interpolateOrRd: OrRd, + schemeOrRd: scheme$c, + interpolatePuBuGn: PuBuGn, + schemePuBuGn: scheme$d, + interpolatePuBu: PuBu, + schemePuBu: scheme$e, + interpolatePuRd: PuRd, + schemePuRd: scheme$f, + interpolateRdPu: RdPu, + schemeRdPu: scheme$g, + interpolateYlGnBu: YlGnBu, + schemeYlGnBu: scheme$h, + interpolateYlGn: YlGn, + schemeYlGn: scheme$i, + interpolateYlOrBr: YlOrBr, + schemeYlOrBr: scheme$j, + interpolateYlOrRd: YlOrRd, + schemeYlOrRd: scheme$k, + interpolateBlues: Blues, + schemeBlues: scheme$l, + interpolateGreens: Greens, + schemeGreens: scheme$m, + interpolateGreys: Greys, + schemeGreys: scheme$n, + interpolatePurples: Purples, + schemePurples: scheme$o, + interpolateReds: Reds, + schemeReds: scheme$p, + interpolateOranges: Oranges, + schemeOranges: scheme$q, + interpolateCividis: cividis, + interpolateCubehelixDefault: cubehelix$3, + interpolateRainbow: rainbow, + interpolateWarm: warm, + interpolateCool: cool, + interpolateSinebow: sinebow, + interpolateTurbo: turbo, + interpolateViridis: viridis, + interpolateMagma: magma, + interpolateInferno: inferno, + interpolatePlasma: plasma, + create: create, + creator: creator, + local: local, + matcher: matcher, + mouse: mouse, + namespace: namespace, + namespaces: namespaces, + clientPoint: point, + select: select, + selectAll: selectAll, + selection: selection, + selector: selector, + selectorAll: selectorAll, + style: styleValue, + touch: touch, + touches: touches, + window: defaultView, + get event () { return event; }, + customEvent: customEvent, + arc: arc, + area: area$3, + line: line, + pie: pie, + areaRadial: areaRadial, + radialArea: areaRadial, + lineRadial: lineRadial$1, + radialLine: lineRadial$1, + pointRadial: pointRadial, + linkHorizontal: linkHorizontal, + linkVertical: linkVertical, + linkRadial: linkRadial, + symbol: symbol, + symbols: symbols, + symbolCircle: circle$2, + symbolCross: cross$2, + symbolDiamond: diamond, + symbolSquare: square, + symbolStar: star, + symbolTriangle: triangle, + symbolWye: wye, + curveBasisClosed: basisClosed$1, + curveBasisOpen: basisOpen, + curveBasis: basis$2, + curveBundle: bundle, + curveCardinalClosed: cardinalClosed, + curveCardinalOpen: cardinalOpen, + curveCardinal: cardinal, + curveCatmullRomClosed: catmullRomClosed, + curveCatmullRomOpen: catmullRomOpen, + curveCatmullRom: catmullRom, + curveLinearClosed: linearClosed, + curveLinear: curveLinear, + curveMonotoneX: monotoneX, + curveMonotoneY: monotoneY, + curveNatural: natural, + curveStep: step, + curveStepAfter: stepAfter, + curveStepBefore: stepBefore, + stack: stack, + stackOffsetExpand: expand, + stackOffsetDiverging: diverging$1, + stackOffsetNone: none$1, + stackOffsetSilhouette: silhouette, + stackOffsetWiggle: wiggle, + stackOrderAppearance: appearance, + stackOrderAscending: ascending$3, + stackOrderDescending: descending$2, + stackOrderInsideOut: insideOut, + stackOrderNone: none$2, + stackOrderReverse: reverse, + timeInterval: newInterval, + timeMillisecond: millisecond, + timeMilliseconds: milliseconds, + utcMillisecond: millisecond, + utcMilliseconds: milliseconds, + timeSecond: second, + timeSeconds: seconds, + utcSecond: second, + utcSeconds: seconds, + timeMinute: minute, + timeMinutes: minutes, + timeHour: hour, + timeHours: hours, + timeDay: day, + timeDays: days, + timeWeek: sunday, + timeWeeks: sundays, + timeSunday: sunday, + timeSundays: sundays, + timeMonday: monday, + timeMondays: mondays, + timeTuesday: tuesday, + timeTuesdays: tuesdays, + timeWednesday: wednesday, + timeWednesdays: wednesdays, + timeThursday: thursday, + timeThursdays: thursdays, + timeFriday: friday, + timeFridays: fridays, + timeSaturday: saturday, + timeSaturdays: saturdays, + timeMonth: month, + timeMonths: months, + timeYear: year, + timeYears: years, + utcMinute: utcMinute, + utcMinutes: utcMinutes, + utcHour: utcHour, + utcHours: utcHours, + utcDay: utcDay, + utcDays: utcDays, + utcWeek: utcSunday, + utcWeeks: utcSundays, + utcSunday: utcSunday, + utcSundays: utcSundays, + utcMonday: utcMonday, + utcMondays: utcMondays, + utcTuesday: utcTuesday, + utcTuesdays: utcTuesdays, + utcWednesday: utcWednesday, + utcWednesdays: utcWednesdays, + utcThursday: utcThursday, + utcThursdays: utcThursdays, + utcFriday: utcFriday, + utcFridays: utcFridays, + utcSaturday: utcSaturday, + utcSaturdays: utcSaturdays, + utcMonth: utcMonth, + utcMonths: utcMonths, + utcYear: utcYear, + utcYears: utcYears, + timeFormatDefaultLocale: defaultLocale$1, + get timeFormat () { return timeFormat; }, + get timeParse () { return timeParse; }, + get utcFormat () { return utcFormat; }, + get utcParse () { return utcParse; }, + timeFormatLocale: formatLocale$1, + isoFormat: formatIso, + isoParse: parseIso, + now: now, + timer: timer, + timerFlush: timerFlush, + timeout: timeout$1, + interval: interval$1, + transition: transition, + active: active, + interrupt: interrupt, + voronoi: voronoi, + zoom: zoom, + zoomTransform: transform$1, + zoomIdentity: identity$9 + }); + + var version$1 = "2.1.1"; + + const defaults = Object.freeze({ + children: data => data.children, + nodeSize: node => node.data.size, + spacing: 0, + }); + + // Create a layout function with customizable options. Per D3-style, the + // options can be set at any time using setter methods. The layout function + // will compute the tree node positions based on the options in effect at the + // time it is called. + function flextree(options) { + const opts = Object.assign({}, defaults, options); + function accessor(name) { + const opt = opts[name]; + return typeof opt === 'function' ? opt : () => opt; + } + + function layout(tree) { + const wtree = wrap(getWrapper(), tree, node=>node.children); + wtree.update(); + return wtree.data; + } + + function getFlexNode() { + const nodeSize = accessor('nodeSize'); + const spacing = accessor('spacing'); + return class FlexNode extends hierarchy.prototype.constructor { + constructor(data) { + super(data); + } + copy() { + const c = wrap(this.constructor, this, node=>node.children); + c.each(node => node.data = node.data.data); + return c; + } + get size() { return nodeSize(this); } + spacing(oNode) { return spacing(this, oNode); } + get nodes() { return this.descendants(); } + get xSize() { return this.size[0]; } + get ySize() { return this.size[1]; } + get top() { return this.y; } + get bottom() { return this.y + this.ySize; } + get left() { return this.x - this.xSize / 2; } + get right() { return this.x + this.xSize / 2; } + get root() { + const ancs = this.ancestors(); + return ancs[ancs.length - 1]; + } + get numChildren() { + return this.hasChildren ? this.children.length : 0; + } + get hasChildren() { return !this.noChildren; } + get noChildren() { return this.children === null; } + get firstChild() { + return this.hasChildren ? this.children[0] : null; + } + get lastChild() { + return this.hasChildren ? this.children[this.numChildren - 1] : null; + } + get extents() { + return (this.children || []).reduce( + (acc, kid) => FlexNode.maxExtents(acc, kid.extents), + this.nodeExtents); + } + get nodeExtents() { + return { + top: this.top, + bottom: this.bottom, + left: this.left, + right: this.right, + }; + } + static maxExtents(e0, e1) { + return { + top: Math.min(e0.top, e1.top), + bottom: Math.max(e0.bottom, e1.bottom), + left: Math.min(e0.left, e1.left), + right: Math.max(e0.right, e1.right), + }; + } + }; + } + + function getWrapper() { + const FlexNode = getFlexNode(); + const nodeSize = accessor('nodeSize'); + const spacing = accessor('spacing'); + return class extends FlexNode { + constructor(data) { + super(data); + Object.assign(this, { + x: 0, y: 0, + relX: 0, prelim: 0, shift: 0, change: 0, + lExt: this, lExtRelX: 0, lThr: null, + rExt: this, rExtRelX: 0, rThr: null, + }); + } + get size() { return nodeSize(this.data); } + spacing(oNode) { return spacing(this.data, oNode.data); } + get x() { return this.data.x; } + set x(v) { this.data.x = v; } + get y() { return this.data.y; } + set y(v) { this.data.y = v; } + update() { + layoutChildren(this); + resolveX(this); + return this; + } + }; + } + + function wrap(FlexClass, treeData, children) { + const _wrap = (data, parent) => { + const node = new FlexClass(data); + Object.assign(node, { + parent, + depth: parent === null ? 0 : parent.depth + 1, + height: 0, + length: 1, + }); + const kidsData = children(data) || []; + node.children = kidsData.length === 0 ? null + : kidsData.map(kd => _wrap(kd, node)); + if (node.children) { + Object.assign(node, node.children.reduce( + (hl, kid) => ({ + height: Math.max(hl.height, kid.height + 1), + length: hl.length + kid.length, + }), node + )); + } + return node; + }; + return _wrap(treeData, null); + } + + + Object.assign(layout, { + nodeSize(arg) { + return arguments.length ? (opts.nodeSize = arg, layout) : opts.nodeSize; + }, + spacing(arg) { + return arguments.length ? (opts.spacing = arg, layout) : opts.spacing; + }, + children(arg) { + return arguments.length ? (opts.children = arg, layout) : opts.children; + }, + hierarchy(treeData, children) { + const kids = typeof children === 'undefined' ? opts.children : children; + return wrap(getFlexNode(), treeData, kids); + }, + dump(tree) { + const nodeSize = accessor('nodeSize'); + const _dump = i0 => node => { + const i1 = i0 + ' '; + const i2 = i0 + ' '; + const {x, y} = node; + const size = nodeSize(node); + const kids = (node.children || []); + const kdumps = (kids.length === 0) ? ' ' : + `,${i1}children: [${i2}${kids.map(_dump(i2)).join(i2)}${i1}],${i0}`; + return `{ size: [${size.join(', ')}],${i1}x: ${x}, y: ${y}${kdumps}},`; + }; + return _dump('\n')(tree); + }, + }); + return layout; + } + flextree.version = version$1; + + const layoutChildren = (w, y = 0) => { + w.y = y; + (w.children || []).reduce((acc, kid) => { + const [i, lastLows] = acc; + layoutChildren(kid, w.y + w.ySize); + // The lowest vertical coordinate while extreme nodes still point + // in current subtree. + const lowY = (i === 0 ? kid.lExt : kid.rExt).bottom; + if (i !== 0) separate(w, i, lastLows); + const lows = updateLows(lowY, i, lastLows); + return [i + 1, lows]; + }, [0, null]); + shiftChange(w); + positionRoot(w); + return w; + }; + + // Resolves the relative coordinate properties - relX and prelim -- + // to set the final, absolute x coordinate for each node. This also sets + // `prelim` to 0, so that `relX` for each node is its x-coordinate relative + // to its parent. + const resolveX = (w, prevSum, parentX) => { + // A call to resolveX without arguments is assumed to be for the root of + // the tree. This will set the root's x-coord to zero. + if (typeof prevSum === 'undefined') { + prevSum = -w.relX - w.prelim; + parentX = 0; + } + const sum = prevSum + w.relX; + w.relX = sum + w.prelim - parentX; + w.prelim = 0; + w.x = parentX + w.relX; + (w.children || []).forEach(k => resolveX(k, sum, w.x)); + return w; + }; + + // Process shift and change for all children, to add intermediate spacing to + // each child's modifier. + const shiftChange = w => { + (w.children || []).reduce((acc, child) => { + const [lastShiftSum, lastChangeSum] = acc; + const shiftSum = lastShiftSum + child.shift; + const changeSum = lastChangeSum + shiftSum + child.change; + child.relX += changeSum; + return [shiftSum, changeSum]; + }, [0, 0]); + }; + + // Separates the latest child from its previous sibling + /* eslint-disable complexity */ + const separate = (w, i, lows) => { + const lSib = w.children[i - 1]; + const curSubtree = w.children[i]; + let rContour = lSib; + let rSumMods = lSib.relX; + let lContour = curSubtree; + let lSumMods = curSubtree.relX; + let isFirst = true; + while (rContour && lContour) { + if (rContour.bottom > lows.lowY) lows = lows.next; + // How far to the left of the right side of rContour is the left side + // of lContour? First compute the center-to-center distance, then add + // the "spacing" + const dist = + (rSumMods + rContour.prelim) - (lSumMods + lContour.prelim) + + rContour.xSize / 2 + lContour.xSize / 2 + + rContour.spacing(lContour); + if (dist > 0 || (dist < 0 && isFirst)) { + lSumMods += dist; + // Move subtree by changing relX. + moveSubtree$1(curSubtree, dist); + distributeExtra(w, i, lows.index, dist); + } + isFirst = false; + // Advance highest node(s) and sum(s) of modifiers + const rightBottom = rContour.bottom; + const leftBottom = lContour.bottom; + if (rightBottom <= leftBottom) { + rContour = nextRContour(rContour); + if (rContour) rSumMods += rContour.relX; + } + if (rightBottom >= leftBottom) { + lContour = nextLContour(lContour); + if (lContour) lSumMods += lContour.relX; + } + } + // Set threads and update extreme nodes. In the first case, the + // current subtree is taller than the left siblings. + if (!rContour && lContour) setLThr(w, i, lContour, lSumMods); + // In the next case, the left siblings are taller than the current subtree + else if (rContour && !lContour) setRThr(w, i, rContour, rSumMods); + }; + /* eslint-enable complexity */ + + // Move subtree by changing relX. + const moveSubtree$1 = (subtree, distance) => { + subtree.relX += distance; + subtree.lExtRelX += distance; + subtree.rExtRelX += distance; + }; + + const distributeExtra = (w, curSubtreeI, leftSibI, dist) => { + const curSubtree = w.children[curSubtreeI]; + const n = curSubtreeI - leftSibI; + // Are there intermediate children? + if (n > 1) { + const delta = dist / n; + w.children[leftSibI + 1].shift += delta; + curSubtree.shift -= delta; + curSubtree.change -= dist - delta; + } + }; + + const nextLContour = w => { + return w.hasChildren ? w.firstChild : w.lThr; + }; + + const nextRContour = w => { + return w.hasChildren ? w.lastChild : w.rThr; + }; + + const setLThr = (w, i, lContour, lSumMods) => { + const firstChild = w.firstChild; + const lExt = firstChild.lExt; + const curSubtree = w.children[i]; + lExt.lThr = lContour; + // Change relX so that the sum of modifier after following thread is correct. + const diff = lSumMods - lContour.relX - firstChild.lExtRelX; + lExt.relX += diff; + // Change preliminary x coordinate so that the node does not move. + lExt.prelim -= diff; + // Update extreme node and its sum of modifiers. + firstChild.lExt = curSubtree.lExt; + firstChild.lExtRelX = curSubtree.lExtRelX; + }; + + // Mirror image of setLThr. + const setRThr = (w, i, rContour, rSumMods) => { + const curSubtree = w.children[i]; + const rExt = curSubtree.rExt; + const lSib = w.children[i - 1]; + rExt.rThr = rContour; + const diff = rSumMods - rContour.relX - curSubtree.rExtRelX; + rExt.relX += diff; + rExt.prelim -= diff; + curSubtree.rExt = lSib.rExt; + curSubtree.rExtRelX = lSib.rExtRelX; + }; + + // Position root between children, taking into account their modifiers + const positionRoot = w => { + if (w.hasChildren) { + const k0 = w.firstChild; + const kf = w.lastChild; + const prelim = (k0.prelim + k0.relX - k0.xSize / 2 + + kf.relX + kf.prelim + kf.xSize / 2 ) / 2; + Object.assign(w, { + prelim, + lExt: k0.lExt, lExtRelX: k0.lExtRelX, + rExt: kf.rExt, rExtRelX: kf.rExtRelX, + }); + } + }; + + // Make/maintain a linked list of the indexes of left siblings and their + // lowest vertical coordinate. + const updateLows = (lowY, index, lastLows) => { + // Remove siblings that are hidden by the new subtree. + while (lastLows !== null && lowY >= lastLows.lowY) + lastLows = lastLows.next; + // Prepend the new subtree. + return { + lowY, + index, + next: lastLows, + }; + }; + + var d3Flextree = /*#__PURE__*/Object.freeze({ + __proto__: null, + flextree: flextree + }); + + var base = createCommonjsModule(function (module, exports) { + + exports.__esModule = true; + exports.getId = getId; + exports.noop = noop; + exports.walkTree = walkTree; + exports.arrayFrom = arrayFrom; + exports.flatMap = flatMap; + exports.addClass = addClass; + exports.childSelector = childSelector; + const uniqId = Math.random().toString(36).slice(2, 8); + let globalIndex = 0; + + function getId() { + globalIndex += 1; + return `mm-${uniqId}-${globalIndex}`; + } + + function noop() {// noop + } + + function walkTree(tree, callback, key = 'c') { + const walk = (item, parent) => callback(item, () => { + var _item$key; + + (_item$key = item[key]) == null ? void 0 : _item$key.forEach(child => { + walk(child, item); + }); + }, parent); + + walk(tree); + } + + function arrayFrom(arrayLike) { + if (Array.from) return Array.from(arrayLike); + const array = []; + + for (let i = 0; i < arrayLike.length; i += 1) { + array.push(arrayLike[i]); + } + + return array; + } + + function flatMap(arrayLike, callback) { + if (arrayLike.flatMap) return arrayLike.flatMap(callback); + const array = []; + + for (let i = 0; i < arrayLike.length; i += 1) { + const result = callback(arrayLike[i], i, arrayLike); + if (Array.isArray(result)) array.push(...result);else array.push(result); + } + + return array; + } + + function addClass(className, ...rest) { + const classList = (className || '').split(' ').filter(Boolean); + rest.forEach(item => { + if (item && classList.indexOf(item) < 0) classList.push(item); + }); + return classList.join(' '); + } + + function childSelector(filter) { + if (typeof filter === 'string') { + const tagName = filter; + + filter = el => el.tagName === tagName; + } + + const filterFn = filter; + return function selector() { + let nodes = arrayFrom(this.childNodes); + if (filterFn) nodes = nodes.filter(node => filterFn(node)); + return nodes; + }; + } + }); + + var html$1 = createCommonjsModule(function (module, exports) { + + exports.__esModule = true; + exports.escapeHtml = escapeHtml; + exports.escapeScript = escapeScript; + exports.htmlOpen = htmlOpen; + exports.htmlClose = htmlClose; + exports.wrapHtml = wrapHtml; + exports.wrapStyle = wrapStyle; + + function escapeHtml(html) { + return html.replace(/[&<"]/g, m => ({ + '&': '&', + '<': '<', + '"': '"' + })[m]); + } + + function escapeScript(content) { + return content.replace(/<(\/script>)/g, '\\x3c$2'); + } + + function htmlOpen(tagName, attrs) { + const attrStr = attrs ? Object.entries(attrs).map(([key, value]) => { + if (value == null || value === false) return; + key = ` ${escapeHtml(key)}`; + if (value === true) return key; + return `${key}="${escapeHtml(value)}"`; + }).filter(Boolean).join('') : ''; + return `<${tagName}${attrStr}>`; + } + + function htmlClose(tagName) { + return ``; + } + + function wrapHtml(tagName, content, attrs) { + if (content == null) return htmlOpen(tagName, attrs); + return htmlOpen(tagName, attrs) + (content || '') + htmlClose(tagName); + } + + function wrapStyle(text, style) { + if (style.code) text = wrapHtml('code', text); + if (style.del) text = wrapHtml('del', text); + if (style.em) text = wrapHtml('em', text); + if (style.strong) text = wrapHtml('strong', text); + return text; + } + }); + + var loader = createCommonjsModule(function (module, exports) { + + exports.__esModule = true; + exports.buildCode = buildCode; + exports.memoize = memoize; + exports.loadJS = loadJS; + exports.loadCSS = loadCSS; + exports.initializePlugins = initializePlugins; + exports.persistJS = persistJS; + exports.persistCSS = persistCSS; + + + + function buildCode(fn, ...args) { + const params = args.map(arg => { + if (typeof arg === 'function') return arg.toString(); + return JSON.stringify(arg != null ? arg : null); + }).join(','); + return `(${fn.toString()})(${params})`; + } + + function memoize(fn) { + const cache = {}; + return function memoized(...args) { + const key = `${args[0]}`; + let data = cache[key]; + + if (!data) { + data = { + value: fn(...args) + }; + cache[key] = data; + } + + return data.value; + }; + } + + function createElement(tagName, props, attrs) { + const el = document.createElement(tagName); + + if (props) { + Object.entries(props).forEach(([key, value]) => { + el[key] = value; + }); + } + + if (attrs) { + Object.entries(attrs).forEach(([key, value]) => { + el.setAttribute(key, value); + }); + } + + return el; + } + + const memoizedPreloadJS = memoize(url => { + document.head.append(createElement('link', { + rel: 'preload', + as: 'script', + href: url + })); + }); + + function loadJSItem(item, context) { + if (item.type === 'script') { + return new Promise((resolve, reject) => { + document.head.append(createElement('script', Object.assign(Object.assign({}, item.data), {}, { + onload: resolve, + onerror: reject + }))); + }); + } else if (item.type === 'iife') { + const { + fn, + getParams + } = item.data; + fn(...((getParams == null ? void 0 : getParams(context)) || [])); + } + } + + function loadCSSItem(item) { + if (item.type === 'style') { + document.head.append(createElement('style', { + textContent: item.data + })); + } else if (item.type === 'stylesheet') { + document.head.append(createElement('link', Object.assign({ + rel: 'stylesheet' + }, item.data))); + } + } + + async function loadJS(items, options) { + const needPreload = items.filter(item => item.type === 'script'); + if (needPreload.length > 1) needPreload.forEach(item => memoizedPreloadJS(item.data.src)); + + for (const item of items) { + await loadJSItem(item, options); + } + } + + function loadCSS(items) { + for (const item of items) { + loadCSSItem(item); + } + } + + async function initializePlugins(Markmap, plugins, options) { + options = Object.assign({}, options); + await Promise.all(plugins.map(plugin => { + loadCSS(plugin.styles); + return loadJS(plugin.scripts, options); + })); + + for (const { + initialize + } of plugins) { + if (initialize) initialize(Markmap, options); + } + } + + function persistJS(items, context) { + return items.map(item => { + if (item.type === 'script') return (0, html$1.wrapHtml)('script', '', item.data); + + if (item.type === 'iife') { + const { + fn, + getParams + } = item.data; + return (0, html$1.wrapHtml)('script', (0, html$1.escapeScript)(buildCode(fn, ...((getParams == null ? void 0 : getParams(context)) || [])))); + } + }); + } + + function persistCSS(items) { + return items.map(item => { + if (item.type === 'stylesheet') { + return (0, html$1.wrapHtml)('link', null, Object.assign({ + rel: 'stylesheet' + }, item.data)); + } + /* else if (item.type === 'style') */ + + + return (0, html$1.wrapHtml)('style', item.data); + }); + } + }); + + var util = createCommonjsModule(function (module, exports) { + + exports.__esModule = true; + + + + Object.keys(base).forEach(function (key) { + if (key === "default" || key === "__esModule") return; + exports[key] = base[key]; + }); + + + + Object.keys(html$1).forEach(function (key) { + if (key === "default" || key === "__esModule") return; + exports[key] = html$1[key]; + }); + + + + Object.keys(loader).forEach(function (key) { + if (key === "default" || key === "__esModule") return; + exports[key] = loader[key]; + }); + }); + + var mathjax = createCommonjsModule(function (module, exports) { + + exports.__esModule = true; + exports.plugin = void 0; + const styles = []; + const scripts = [{ + type: 'iife', + data: { + fn: mathJax => { + mathJax.options = Object.assign({ + skipHtmlTags: { + '[-]': ['code', 'pre'] + } + }, mathJax.options); + mathJax.startup = Object.assign({ + typeset: false + }, mathJax.startup); + window.MathJax = mathJax; + }, + getParams: context => [Object.assign({}, context.mathJax)] + } + }, { + type: 'script', + data: { + src: 'https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-svg.js' + } + }]; + + function initialize(Markmap, options) { + Markmap.transformHtml.tap((mm, nodes) => { + var _MathJax$typeset, _MathJax; + + (_MathJax$typeset = (_MathJax = window.MathJax).typeset) == null ? void 0 : _MathJax$typeset.call(_MathJax, nodes); + }); + } + + const plugin = { + styles, + scripts, + initialize + }; + exports.plugin = plugin; + }); + + var prism = createCommonjsModule(function (module, exports) { + + exports.__esModule = true; + exports.plugin = void 0; + + + + const errors = {}; + const styles = [{ + type: 'stylesheet', + data: { + href: 'https://cdn.jsdelivr.net/npm/prismjs@1/themes/prism.css' + } + }]; + const scripts = [{ + type: 'iife', + data: { + fn: () => { + window.Prism = { + manual: true + }; + } + } + }, { + type: 'script', + data: { + src: 'https://cdn.jsdelivr.net/npm/prismjs@1/components/prism-core.min.js' + } + }, // components will be added by paths relative to path of autoloader + { + type: 'script', + data: { + src: 'https://cdn.jsdelivr.net/npm/prismjs@1/plugins/autoloader/prism-autoloader.min.js' + } + }]; + + function initialize(Markmap, options) { + Markmap.transformHtml.tap((mm, nodes) => { + const { + Prism + } = window; + const langs = (0, util.flatMap)(nodes, node => (0, util.arrayFrom)(node.querySelectorAll('code[class*=language-]'))).map(code => { + const lang = code.className.match(/(?:^|\s)language-(\S+)|$/)[1]; + + if (Prism.languages[lang]) { + Prism.highlightElement(code); + } else if (!errors[lang]) { + return lang; + } + }).filter(Boolean); + loadLanguagesAndRender(mm, langs); + }); + } + + async function loadLanguagesAndRender(mm, langs) { + if (!langs.length) return; + const { + Prism + } = window; + + try { + await new Promise((resolve, reject) => { + Prism.plugins.autoloader.loadLanguages(langs, resolve, reject); + }); + } catch (err) { + errors[err] = true; + } + + mm.setData(); + mm.fit(); + } + + const plugin = { + styles, + scripts, + initialize + }; + exports.plugin = plugin; + }); + + var plugins = createCommonjsModule(function (module, exports) { + + exports.__esModule = true; + exports.prism = exports.mathJax = void 0; + + + + exports.mathJax = mathjax.plugin; + + + + exports.prism = prism.plugin; + }); + + var hook = createCommonjsModule(function (module, exports) { + + exports.__esModule = true; + exports.Hook = void 0; + + class Hook { + constructor() { + this.listeners = []; + } + + tap(fn) { + this.listeners.push(fn); + } + + call(...args) { + for (const fn of this.listeners) { + fn(...args); + } + } + + } + + exports.Hook = Hook; + }); + + var view = createCommonjsModule(function (module, exports) { + + + + exports.__esModule = true; + exports.markmap = markmap; + exports.loadPlugins = loadPlugins; + exports.plugins = exports.Markmap = void 0; + + var d3$1 = interopRequireWildcard(d3); + + + + + + var plugins$1 = interopRequireWildcard(plugins); + + exports.plugins = plugins$1; + + + + function linkWidth(nodeData) { + const data = nodeData.data; + return Math.max(6 - 2 * data.d, 1.5); + } + + function adjustSpacing(tree, spacing) { + (0, util.walkTree)(tree, (d, next) => { + d.ySizeInner = d.ySize - spacing; + d.y += spacing; + next(); + }, 'children'); + } + + class Markmap { + constructor(svg, opts) { + this.options = void 0; + this.state = void 0; + this.svg = void 0; + this.styleNode = void 0; + this.g = void 0; + this.zoom = void 0; + ['handleZoom', 'handleClick'].forEach(key => { + this[key] = this[key].bind(this); + }); + this.svg = svg.datum ? svg : d3$1.select(svg); + this.styleNode = this.svg.append('style'); + this.zoom = d3$1.zoom().on('zoom', this.handleZoom); + this.options = Object.assign({ + duration: 500, + nodeFont: '300 16px/20px sans-serif', + nodeMinHeight: 16, + spacingVertical: 5, + spacingHorizontal: 80, + autoFit: false, + fitRatio: 0.95, + color: (colorFn => node => colorFn(node.p.i))(d3$1.scaleOrdinal(d3$1.schemeCategory10)), + paddingX: 8 + }, opts); + this.state = { + id: this.options.id || (0, util.getId)() + }; + this.g = this.svg.append('g').attr('class', `${this.state.id}-g`); + this.updateStyle(); + this.svg.call(this.zoom); + } + + getStyleContent() { + const { + style, + nodeFont + } = this.options; + const { + id + } = this.state; + const extraStyle = typeof style === 'function' ? style(id) : ''; + const styleText = `\ +.${id} a { color: #0097e6; } +.${id} a:hover { color: #00a8ff; } +.${id}-g > path { fill: none; } +.${id}-fo > div { font: ${nodeFont}; white-space: nowrap; } +.${id}-fo code { padding: .2em .4em; font-size: calc(1em - 2px); color: #555; background-color: #f0f0f0; border-radius: 2px; } +.${id}-fo del { text-decoration: line-through; } +.${id}-fo em { font-style: italic; } +.${id}-fo strong { font-weight: 600; } +.${id}-fo pre { margin: 0; } +.${id}-fo pre[class*=language-] { padding: 0; } +.${id}-g > g { cursor: pointer; } +${extraStyle} +`; + return styleText; + } + + updateStyle() { + this.svg.attr('class', (0, util.addClass)(this.svg.attr('class'), this.state.id)); + this.styleNode.text(this.getStyleContent()); + } + + handleZoom() { + const { + transform + } = d3$1.event; + this.g.attr('transform', transform); + } + + handleClick(d) { + var _data$p; + + const { + data + } = d; + data.p = Object.assign(Object.assign({}, data.p), {}, { + f: !((_data$p = data.p) == null ? void 0 : _data$p.f) + }); + this.renderData(d.data); + } + + initializeData(node) { + let i = 0; + const { + nodeFont, + color, + nodeMinHeight + } = this.options; + const { + id + } = this.state; + const container = document.createElement('div'); + const containerClass = `${id}-container`; + container.className = (0, util.addClass)(container.className, `${id}-fo`, containerClass); + const style = document.createElement('style'); + style.textContent = ` +${this.getStyleContent()} +.${containerClass} { + position: absolute; + width: 0; + height: 0; + top: -100px; + left: -100px; + overflow: hidden; + font: ${nodeFont}; +} +.${containerClass} > div { + display: inline-block; +} +`; + document.body.append(style, container); + (0, util.walkTree)(node, (item, next) => { + var _item$c; + + item.c = (_item$c = item.c) == null ? void 0 : _item$c.map(child => Object.assign({}, child)); + i += 1; + const el = document.createElement('div'); + el.innerHTML = item.v; + container.append(el); + item.p = Object.assign(Object.assign({}, item.p), {}, { + // unique ID + i, + el + }); + color(item); // preload colors + + next(); + }); + const nodes = (0, util.arrayFrom)(container.childNodes); + this.constructor.transformHtml.call(this, nodes); + (0, util.walkTree)(node, (item, next, parent) => { + var _parent$p; + + const rect = item.p.el.getBoundingClientRect(); + item.v = item.p.el.innerHTML; + item.p.s = [Math.ceil(rect.width), Math.max(Math.ceil(rect.height), nodeMinHeight)]; // TODO keep keys for unchanged objects + // unique key, should be based on content + + item.p.k = `${(parent == null ? void 0 : (_parent$p = parent.p) == null ? void 0 : _parent$p.i) || ''}.${item.p.i}:${item.v}`; + next(); + }); + container.remove(); + style.remove(); + } + + setOptions(opts) { + Object.assign(this.options, opts); + } + + setData(data, opts) { + if (!data) data = Object.assign({}, this.state.data); + this.state.data = data; + this.initializeData(data); + if (opts) this.setOptions(opts); + this.renderData(); + } + + renderData(originData) { + var _origin$data$p$x, _origin$data$p$y; + + if (!this.state.data) return; + const { + spacingHorizontal, + paddingX, + spacingVertical, + autoFit, + color + } = this.options; + const { + id + } = this.state; + const layout = (0, d3Flextree.flextree)().children(d => { + var _d$p; + + return !((_d$p = d.p) == null ? void 0 : _d$p.f) && d.c; + }).nodeSize(d => { + const [width, height] = d.data.p.s; + return [height, width + (width ? paddingX * 2 : 0) + spacingHorizontal]; + }).spacing((a, b) => { + return a.parent === b.parent ? spacingVertical : spacingVertical * 2; + }); + const tree = layout.hierarchy(this.state.data); + layout(tree); + adjustSpacing(tree, spacingHorizontal); + const descendants = tree.descendants().reverse(); + const links = tree.links(); + const linkShape = d3$1.linkHorizontal(); + const minX = d3$1.min(descendants, d => d.x - d.xSize / 2); + const maxX = d3$1.max(descendants, d => d.x + d.xSize / 2); + const minY = d3$1.min(descendants, d => d.y); + const maxY = d3$1.max(descendants, d => d.y + d.ySizeInner); + Object.assign(this.state, { + minX, + maxX, + minY, + maxY + }); + if (autoFit) this.fit(); + const origin = originData && descendants.find(item => item.data === originData) || tree; + const x0 = (_origin$data$p$x = origin.data.p.x0) != null ? _origin$data$p$x : origin.x; + const y0 = (_origin$data$p$y = origin.data.p.y0) != null ? _origin$data$p$y : origin.y; // Update the nodes + + const node = this.g.selectAll((0, util.childSelector)('g')).data(descendants, d => d.data.p.k); + const nodeEnter = node.enter().append('g').attr('transform', d => `translate(${y0 + origin.ySizeInner - d.ySizeInner},${x0 + origin.xSize / 2 - d.xSize})`).on('click', this.handleClick); + const nodeExit = this.transition(node.exit()); + nodeExit.select('rect').attr('width', 0).attr('x', d => d.ySizeInner); + nodeExit.select('foreignObject').style('opacity', 0); + nodeExit.attr('transform', d => `translate(${origin.y + origin.ySizeInner - d.ySizeInner},${origin.x + origin.xSize / 2 - d.xSize})`).remove(); + const nodeMerge = node.merge(nodeEnter); + this.transition(nodeMerge).attr('transform', d => `translate(${d.y},${d.x - d.xSize / 2})`); + const rect = nodeMerge.selectAll((0, util.childSelector)('rect')).data(d => [d], d => d.data.p.k).join(enter => { + return enter.append('rect').attr('x', d => d.ySizeInner).attr('y', d => d.xSize - linkWidth(d) / 2).attr('width', 0).attr('height', linkWidth); + }, update => update, exit => exit.remove()); + this.transition(rect).attr('x', -1).attr('width', d => d.ySizeInner + 2).attr('fill', d => color(d.data)); + const circle = nodeMerge.selectAll((0, util.childSelector)('circle')).data(d => d.data.c ? [d] : [], d => d.data.p.k).join(enter => { + return enter.append('circle').attr('stroke-width', '1.5').attr('cx', d => d.ySizeInner).attr('cy', d => d.xSize).attr('r', 0); + }, update => update, exit => exit.remove()); + this.transition(circle).attr('r', 6).attr('stroke', d => color(d.data)).attr('fill', d => { + var _d$data$p; + + return ((_d$data$p = d.data.p) == null ? void 0 : _d$data$p.f) ? color(d.data) : '#fff'; + }); + const foreignObject = nodeMerge.selectAll((0, util.childSelector)('foreignObject')).data(d => [d], d => d.data.p.k).join(enter => { + const fo = enter.append('foreignObject').attr('class', `${id}-fo`).attr('x', paddingX).attr('y', 0).style('opacity', 0).attr('height', d => d.xSize); + fo.append('xhtml:div').select(function (d) { + const node = d.data.p.el.cloneNode(true); + this.replaceWith(node); + return node; + }).attr('xmlns', 'http://www.w3.org/1999/xhtml'); + return fo; + }, update => update, exit => exit.remove()).attr('width', d => Math.max(0, d.ySizeInner - paddingX * 2)); + this.transition(foreignObject).style('opacity', 1); // Update the links + + const path = this.g.selectAll((0, util.childSelector)('path')).data(links, d => d.target.data.p.k).join(enter => { + const source = [y0 + origin.ySizeInner, x0 + origin.xSize / 2]; + return enter.insert('path', 'g').attr('d', linkShape({ + source, + target: source + })); + }, update => update, exit => { + const source = [origin.y + origin.ySizeInner, origin.x + origin.xSize / 2]; + return this.transition(exit).attr('d', linkShape({ + source, + target: source + })).remove(); + }); + this.transition(path).attr('stroke', d => color(d.target.data)).attr('stroke-width', d => linkWidth(d.target)).attr('d', d => { + const source = [d.source.y + d.source.ySizeInner, d.source.x + d.source.xSize / 2]; + const target = [d.target.y, d.target.x + d.target.xSize / 2]; + return linkShape({ + source, + target + }); + }); + descendants.forEach(d => { + d.data.p.x0 = d.x; + d.data.p.y0 = d.y; + }); + } + + transition(sel) { + const { + duration + } = this.options; + return sel.transition().duration(duration); + } + + fit() { + const svgNode = this.svg.node(); + const { + width: offsetWidth, + height: offsetHeight + } = svgNode.getBoundingClientRect(); + const { + fitRatio + } = this.options; + const { + minX, + maxX, + minY, + maxY + } = this.state; + const naturalWidth = maxY - minY; + const naturalHeight = maxX - minX; + const scale = Math.min(offsetWidth / naturalWidth * fitRatio, offsetHeight / naturalHeight * fitRatio, 2); + const initialZoom = d3$1.zoomIdentity.translate((offsetWidth - naturalWidth * scale) / 2 - minY * scale, (offsetHeight - naturalHeight * scale) / 2 - minX * scale).scale(scale); + return this.transition(this.svg).call(this.zoom.transform, initialZoom).end().catch(util.noop); + } + + rescale(scale) { + const svgNode = this.svg.node(); + const { + width: offsetWidth, + height: offsetHeight + } = svgNode.getBoundingClientRect(); + const halfWidth = offsetWidth / 2; + const halfHeight = offsetHeight / 2; + const transform = d3$1.zoomTransform(svgNode); + const newTransform = transform.translate((halfWidth - transform.x) * (1 - scale) / transform.k, (halfHeight - transform.y) * (1 - scale) / transform.k).scale(scale); + return this.transition(this.svg).call(this.zoom.transform, newTransform).end().catch(util.noop); + } + + static create(svg, opts, data) { + const mm = new Markmap(svg, opts); + + if (data) { + mm.setData(data); + mm.fit(); // always fit for the first render + } + + return mm; + } + + } + + exports.Markmap = Markmap; + Markmap.transformHtml = new hook.Hook(); + + function markmap(svg, data, opts) { + return Markmap.create(svg, opts, data); + } + + async function loadPlugins(items, options) { + items = items.map(item => { + if (typeof item === 'string') { + const name = item; + item = plugins$1[name]; + + if (!item) { + console.warn(`[markmap] Unknown plugin: ${name}`); + } + } + + return item; + }).filter(Boolean); + return (0, util.initializePlugins)(Markmap, items, options); + } + }); + + var view$1 = /*@__PURE__*/unwrapExports(view); + + return view$1; + +}))); diff --git a/www/common/diffMarked.js b/www/common/diffMarked.js index 86f99aa42..3f53c1c64 100644 --- a/www/common/diffMarked.js +++ b/www/common/diffMarked.js @@ -10,10 +10,12 @@ define([ '/common/media-tag.js', '/common/highlight/highlight.pack.js', '/customize/messages.js', + '/code/markmap/markmap-lib.transform.bundle.js', + '/code/markmap/markmap-lib.view.bundle.js', '/bower_components/diff-dom/diffDOM.js', '/bower_components/tweetnacl/nacl-fast.min.js', 'css!/common/highlight/styles/github.css' -],function ($, ApiConfig, Marked, MathJax, Hash, Util, h, MT, MediaTag, Highlight, Messages) { +],function ($, ApiConfig, Marked, MathJax, Hash, Util, h, MT, MediaTag, Highlight, Messages, transform, Markmap) { var DiffMd = {}; var DiffDOM = window.diffDOM; @@ -24,6 +26,7 @@ define([ init: function () {} }; + var MathJax = window.MathJax; var mermaidThemeCSS = //".node rect { fill: #DDD; stroke: #AAA; } " + @@ -98,7 +101,14 @@ define([ renderer.code = function (code, language) { if (language === 'mermaid' && code.match(/^(graph|pie|gantt|sequenceDiagram|classDiagram|gitGraph)/)) { return '
    '+Util.fixHTML(code)+'
    '; - } else if (language === 'mathjax') { + } else if (language === 'markdown markmap') { + return '
    '+Util.fixHTML(code)+'
    '; + /* + var data = transform.transform(code); + var svgEl = document.createElement("svg"); + return '
    '+ svgEl.outerHTML +'
    '; + */ + } else if (language === 'mathjax') { var svg = MathJax.tex2svg(code, {display: true}) return '
    '+ svg.innerHTML.replace(/xlink:href/g, "href") +'
    '; } else { @@ -328,6 +338,13 @@ define([ removeMermaidClickables($el); }; + var renderMarkmap = function ($el) { + var data = transform.transform($el[0].getAttribute("markmap-source")); + $el[0].innerHTML = "" + Markmap.markmap($el[0].firstChild, data) + removeMermaidClickables($el); + } + DiffMd.apply = function (newHtml, $content, common) { var contextMenu = common.importMediaTagMenu(); @@ -351,6 +368,8 @@ define([ var mermaid_source = []; var mermaid_cache = {}; + var markmap_source = []; + var markmap_cache = {}; var canonicalizeMermaidSource = function (src) { // ignore changes to empty lines, since that won't affect @@ -367,6 +386,15 @@ define([ } }); + // iterate over the unrendered mermaid inputs, caching their source as you go + $(newDomFixed).find('pre.markmap').each(function (index, el) { + if (el.childNodes.length === 1 && el.childNodes[0].nodeType === 3) { + var src = canonicalizeMermaidSource(el.childNodes[0].wholeText); + el.setAttribute('markmap-source', src); + markmap_source[index] = src; + } + }); + // remember the previous scroll position var $parent = $content.parent(); var scrollTop = $parent.scrollTop(); @@ -394,11 +422,37 @@ define([ } }); + + // iterate over rendered markmap charts + $content.find('pre.markmap:not([processed="true"])').each(function (index, el) { + // retrieve the attached source code which it was drawn + var src = el.getAttribute('markmap-source'); + +/* The new source might have syntax errors that will prevent rendering. + It might be preferable to keep the existing state instead of removing it + if you don't have something better to display. Ideally we should display + the cause of the syntax error so that the user knows what to correct. */ + //if (!Mermaid.parse(src)) { } // TODO + + // check if that source exists in the set of charts which are about to be rendered + if (markmap_source.indexOf(src) === -1) { + // if it's not, then you can remove it + if (el.parentNode && el.parentNode.children.length) { + el.parentNode.removeChild(el); + } + } else if (el.childNodes.length === 1 && el.childNodes[0].nodeType !== 3) { + // otherwise, confirm that the content of the rendered chart is not a text node + // and keep a copy of it + markmap_cache[src] = el.childNodes[0]; + } + }); + + var oldDom = domFromHTML($content[0].outerHTML); var onPreview = function ($mt) { return function () { - var isSvg = $mt.is('pre.mermaid'); + var isSvg = $mt.is('pre.mermaid') || $mt.is('pre.markmap'); var mts = []; $content.find('media-tag, pre.mermaid').each(function (i, el) { if (el.nodeName.toLowerCase() === "pre") { @@ -420,6 +474,27 @@ define([ }); }); + $content.find('media-tag, pre.markmap').each(function (i, el) { + if (el.nodeName.toLowerCase() === "pre") { + var clone = el.cloneNode(); + return void mts.push({ + svg: clone, + render: function () { + var $el = $(clone); + $el.text(clone.getAttribute('markmap-source')); + $el.attr('data-processed', ''); + renderMermaid($el); + } + }); + } + var $el = $(el); + mts.push({ + src: $el.attr('src'), + key: $el.attr('data-crypto-key') + }); + }); + + // Find initial position var idx = -1; mts.some(function (obj, i) { @@ -427,13 +502,17 @@ define([ idx = i; return true; } + if (isSvg && $mt.attr('markmap-source') === $(obj.svg).attr('markmap-source')) { + idx = i; + return true; + } if (!isSvg && obj.src === $mt.attr('src')) { idx = i; return true; } }); if (idx === -1) { - if (isSvg) { + if (isSvg && $mt.attr('mermaid-source')) { var clone = $mt[0].cloneNode(); mts.unshift({ svg: clone, @@ -444,6 +523,17 @@ define([ renderMermaid($el); } }); + } else if (isSvg && $mt.attr('markmap-source')) { + var clone = $mt[0].cloneNode(); + mts.unshift({ + svg: clone, + render: function () { + var $el = $(clone); + $el.text(clone.getAttribute('markmap-source')); + $el.attr('data-processed', ''); + renderMarkmap($el); + } + }); } else { mts.unshift({ src: $mt.attr('src'), @@ -556,6 +646,50 @@ define([ // and set a flag indicating that this graph need not be reprocessed el.setAttribute('data-processed', true); }); + + // loop over markmap elements in the rendered content + $content.find('pre.markmap').each(function (index, el) { + var $el = $(el); + $el.off('contextmenu').on('contextmenu', function (e) { + e.preventDefault(); + $(contextMenu.menu).data('mediatag', $el); + $(contextMenu.menu).find('li:not(.cp-svg)').hide(); + contextMenu.show(e); + }); + $el.off('dblclick click preview'); + $el.on('preview', onPreview($el)); + $el.on('dblclick click', function () { + $el.trigger('preview'); + }); + + // since you've simply drawn the content that was supplied via markdown + // you can assume that the index of your rendered charts matches that + // of those in the markdown source. + var src = markmap_source[index]; + el.setAttribute('markmap-source', src); + var cached = markmap_cache[src]; + + // check if you had cached a pre-rendered instance of the supplied source + if (typeof(cached) !== 'object') { + try { + renderMarkmap($el); + } catch (e) { console.error(e); } + return; + } + + // if there's a cached rendering, empty out the contained source code + // which would otherwise be drawn again. + // apparently this is the fastest way to empty out an element + while (el.firstChild) { el.removeChild(el.firstChild); } //el.innerHTML = ''; + // insert the cached graph + el.appendChild(cached); + // and set a flag indicating that this graph need not be reprocessed + el.setAttribute('data-processed', true); + }); + + + + } // recover the previous scroll position to avoid jank $parent.scrollTop(scrollTop); From 93ce3f5a834d8e319045e8e48939c77ecde3ac1c Mon Sep 17 00:00:00 2001 From: yflory Date: Thu, 2 Jul 2020 15:04:54 +0200 Subject: [PATCH 3/8] Deduplicate code and fix preview modal --- .../src/less2/include/markdown.less | 8 +- .../src/less2/include/modals-ui-elements.less | 10 + www/common/diffMarked.js | 286 ++++++++---------- www/common/inner/common-mediatag.js | 2 +- www/lib/markmap/transform.min.js | 2 + www/lib/markmap/view.min.js | 2 + 6 files changed, 140 insertions(+), 170 deletions(-) create mode 100644 www/lib/markmap/transform.min.js create mode 100644 www/lib/markmap/view.min.js diff --git a/customize.dist/src/less2/include/markdown.less b/customize.dist/src/less2/include/markdown.less index 7a8fc0ddf..b07fc9477 100644 --- a/customize.dist/src/less2/include/markdown.less +++ b/customize.dist/src/less2/include/markdown.less @@ -93,7 +93,13 @@ border: 1px solid #BBB; } - pre.mermaid { + pre.markmap { + border: 1px solid #ddd; + svg { + height: 400px; + } + } + pre[data-plugin] { svg { max-width: 100%; cursor: pointer; diff --git a/customize.dist/src/less2/include/modals-ui-elements.less b/customize.dist/src/less2/include/modals-ui-elements.less index c407c8523..e8282f6e8 100644 --- a/customize.dist/src/less2/include/modals-ui-elements.less +++ b/customize.dist/src/less2/include/modals-ui-elements.less @@ -150,6 +150,16 @@ overflow: unset; margin-bottom: 0; } + pre.markmap { + margin-bottom: 0; + max-height: 100%; + overflow: hidden; + display: flex; + flex-flow: column; + svg { + flex: 1; + } + } .cp-spinner { border-color: @colortheme_logo-1; border-top-color: transparent; diff --git a/www/common/diffMarked.js b/www/common/diffMarked.js index 3f53c1c64..e25be2c9d 100644 --- a/www/common/diffMarked.js +++ b/www/common/diffMarked.js @@ -2,7 +2,6 @@ define([ 'jquery', '/api/config', '/bower_components/marked/marked.min.js', - '/bower_components/MathJax/es5/tex-svg.js', '/common/common-hash.js', '/common/common-util.js', '/common/hyperscript.js', @@ -10,14 +9,17 @@ define([ '/common/media-tag.js', '/common/highlight/highlight.pack.js', '/customize/messages.js', - '/code/markmap/markmap-lib.transform.bundle.js', - '/code/markmap/markmap-lib.view.bundle.js', + '/lib/markmap/transform.min.js', + '/lib/markmap/view.min.js', + '/bower_components/MathJax/es5/tex-svg.js', '/bower_components/diff-dom/diffDOM.js', '/bower_components/tweetnacl/nacl-fast.min.js', 'css!/common/highlight/styles/github.css' -],function ($, ApiConfig, Marked, MathJax, Hash, Util, h, MT, MediaTag, Highlight, Messages, transform, Markmap) { +],function ($, ApiConfig, Marked, Hash, Util, h, MT, MediaTag, Highlight, Messages, + MarkMapTransform, Markmap) { var DiffMd = {}; + var MathJax = window.MathJax; var DiffDOM = window.diffDOM; var renderer = new Marked.Renderer(); var restrictedRenderer = new Marked.Renderer(); @@ -26,9 +28,6 @@ define([ init: function () {} }; - - var MathJax = window.MathJax; - var mermaidThemeCSS = //".node rect { fill: #DDD; stroke: #AAA; } " + "rect.task, rect.task0, rect.task2 { stroke-width: 1 !important; rx: 0 !important; } " + "g.grid g.tick line { opacity: 0.25; }" + @@ -100,15 +99,10 @@ define([ var defaultCode = renderer.code; renderer.code = function (code, language) { if (language === 'mermaid' && code.match(/^(graph|pie|gantt|sequenceDiagram|classDiagram|gitGraph)/)) { - return '
    '+Util.fixHTML(code)+'
    '; - } else if (language === 'markdown markmap') { - return '
    '+Util.fixHTML(code)+'
    '; - /* - var data = transform.transform(code); - var svgEl = document.createElement("svg"); - return '
    '+ svgEl.outerHTML +'
    '; - */ - } else if (language === 'mathjax') { + return '
    '+Util.fixHTML(code)+'
    '; + } else if (language === 'markmap') { + return '
    '+Util.fixHTML(code)+'
    '; + } else if (language === 'mathjax') { var svg = MathJax.tex2svg(code, {display: true}) return '
    '+ svg.innerHTML.replace(/xlink:href/g, "href") +'
    '; } else { @@ -313,6 +307,8 @@ define([ return patch; }; + var plugins = {}; + var removeMermaidClickables = function ($el) { // find all links in the tree and do the following for each one $el.find('a').each(function (index, a) { @@ -329,24 +325,74 @@ define([ // finally, find all 'clickable' items and remove the class $el.find('.clickable').removeClass('clickable'); }; - var renderMermaid = function ($el) { - Mermaid.init(undefined, $el); - // clickable elements in mermaid don't work well with our sandboxing setup - // the function below strips clickable elements but still leaves behind some artifacts - // tippy tooltips might still be useful, so they're not removed. It would be - // preferable to just support links, but this covers up a rough edge in the meantime - removeMermaidClickables($el); + + plugins.mermaid = { + name: 'mermaid', + attr: 'mermaid-source', + render: function ($el) { + Mermaid.init(undefined, $el); + // clickable elements in mermaid don't work well with our sandboxing setup + // the function below strips clickable elements but still leaves behind some artifacts + // tippy tooltips might still be useful, so they're not removed. It would be + // preferable to just support links, but this covers up a rough edge in the meantime + removeMermaidClickables($el); + } }; - var renderMarkmap = function ($el) { - var data = transform.transform($el[0].getAttribute("markmap-source")); - $el[0].innerHTML = "" - Markmap.markmap($el[0].firstChild, data) - removeMermaidClickables($el); - } + var sfCommon; + var fixMathjaxClickables = function ($svg) { + // find all links in the tree and do the following for each one + var onClick = function (e) { + e.preventDefault(); + e.stopImmediatePropagation(); + var $el = $(e.target); + // Open links only from the preview modal + if (!sfCommon) { return void console.error('No sfCommon'); } + + var href = $el.attr('href'); + if (!href || !/^(https?:\/\/|\/)/.test(href)) { return; } + + if (/^http/.test(href)) { + sfCommon.openUnsafeURL(href); + return; + } + sfCommon.openURL(href); + }; + $svg.find('a').click(onClick); + // make sure the links added later by collapsing/expading the map are also safe + var observer = new MutationObserver(function(mutations) { + mutations.forEach(function(mutation) { + if (mutation.type === 'childList') { + var n, $a; + for (var i = 0; i < mutation.addedNodes.length; i++) { + n = mutation.addedNodes[i]; + if (n.nodeName === "A") { return void n.addEventListener('click', onClick); } + $(n).find('a').click(onClick); + } + } + }); + }); + observer.observe($svg[0], { + childList: true, + subtree: true + }); + }; + + plugins.markmap = { + name: 'markmap', + attr: 'markmap-source', + render: function ($el) { + var data = MarkMapTransform.transform($el[0].getAttribute("markmap-source")); + $el[0].innerHTML = "" + Markmap.markmap($el[0].firstChild, data) + fixMathjaxClickables($el); + } + }; DiffMd.apply = function (newHtml, $content, common) { + if (!sfCommon) { sfCommon = common; } + var contextMenu = common.importMediaTagMenu(); var id = $content.attr('id'); if (!id) { throw new Error("The element must have a valid id"); } @@ -366,10 +412,10 @@ define([ var Dom = domFromHTML($('
    ').append($div).html()); $content[0].normalize(); - var mermaid_source = []; - var mermaid_cache = {}; - var markmap_source = []; - var markmap_cache = {}; + Object.keys(plugins).forEach(function (id) { + plugins[id].source = []; + plugins[id].cache = {}; + }); var canonicalizeMermaidSource = function (src) { // ignore changes to empty lines, since that won't affect @@ -377,21 +423,15 @@ define([ return src.replace(/\n[ \t]*\n*[ \t]*\n/g, '\n'); }; - // iterate over the unrendered mermaid inputs, caching their source as you go - $(newDomFixed).find('pre.mermaid').each(function (index, el) { + // iterate over the unrendered mermaid and markmap inputs, + // caching their source as you go + $(newDomFixed).find('pre[data-plugin]').each(function (index, el) { if (el.childNodes.length === 1 && el.childNodes[0].nodeType === 3) { + var plugin = plugins[el.getAttribute('data-plugin')]; + if (!plugin) { return; } var src = canonicalizeMermaidSource(el.childNodes[0].wholeText); - el.setAttribute('mermaid-source', src); - mermaid_source[index] = src; - } - }); - - // iterate over the unrendered mermaid inputs, caching their source as you go - $(newDomFixed).find('pre.markmap').each(function (index, el) { - if (el.childNodes.length === 1 && el.childNodes[0].nodeType === 3) { - var src = canonicalizeMermaidSource(el.childNodes[0].wholeText); - el.setAttribute('markmap-source', src); - markmap_source[index] = src; + el.setAttribute(plugin.attr, src); + plugin.source[index] = src; } }); @@ -399,43 +439,21 @@ define([ var $parent = $content.parent(); var scrollTop = $parent.scrollTop(); // iterate over rendered mermaid charts - $content.find('pre.mermaid:not([processed="true"])').each(function (index, el) { - // retrieve the attached source code which it was drawn - var src = el.getAttribute('mermaid-source'); + $content.find('pre[data-plugin]:not([processed="true"])').each(function (index, el) { + var plugin = plugins[el.getAttribute('data-plugin')]; + if (!plugin) { return; } -/* The new source might have syntax errors that will prevent rendering. - It might be preferable to keep the existing state instead of removing it - if you don't have something better to display. Ideally we should display - the cause of the syntax error so that the user knows what to correct. */ - //if (!Mermaid.parse(src)) { } // TODO - - // check if that source exists in the set of charts which are about to be rendered - if (mermaid_source.indexOf(src) === -1) { - // if it's not, then you can remove it - if (el.parentNode && el.parentNode.children.length) { - el.parentNode.removeChild(el); - } - } else if (el.childNodes.length === 1 && el.childNodes[0].nodeType !== 3) { - // otherwise, confirm that the content of the rendered chart is not a text node - // and keep a copy of it - mermaid_cache[src] = el.childNodes[0]; - } - }); - - - // iterate over rendered markmap charts - $content.find('pre.markmap:not([processed="true"])').each(function (index, el) { // retrieve the attached source code which it was drawn - var src = el.getAttribute('markmap-source'); + var src = el.getAttribute(plugin.attr); /* The new source might have syntax errors that will prevent rendering. It might be preferable to keep the existing state instead of removing it if you don't have something better to display. Ideally we should display the cause of the syntax error so that the user knows what to correct. */ - //if (!Mermaid.parse(src)) { } // TODO + //if (plugin.name === "mermaid" && !Mermaid.parse(src)) { } // TODO // check if that source exists in the set of charts which are about to be rendered - if (markmap_source.indexOf(src) === -1) { + if (plugin.source.indexOf(src) === -1) { // if it's not, then you can remove it if (el.parentNode && el.parentNode.children.length) { el.parentNode.removeChild(el); @@ -443,47 +461,29 @@ define([ } else if (el.childNodes.length === 1 && el.childNodes[0].nodeType !== 3) { // otherwise, confirm that the content of the rendered chart is not a text node // and keep a copy of it - markmap_cache[src] = el.childNodes[0]; + plugin.cache[src] = el.childNodes[0]; } }); - var oldDom = domFromHTML($content[0].outerHTML); var onPreview = function ($mt) { return function () { - var isSvg = $mt.is('pre.mermaid') || $mt.is('pre.markmap'); var mts = []; - $content.find('media-tag, pre.mermaid').each(function (i, el) { + // Get all previewable elements from the doc + $content.find('media-tag, pre[data-plugin]').each(function (i, el) { if (el.nodeName.toLowerCase() === "pre") { var clone = el.cloneNode(); - return void mts.push({ - svg: clone, - render: function () { - var $el = $(clone); - $el.text(clone.getAttribute('mermaid-source')); - $el.attr('data-processed', ''); - renderMermaid($el); - } - }); - } - var $el = $(el); - mts.push({ - src: $el.attr('src'), - key: $el.attr('data-crypto-key') - }); - }); + var plugin = plugins[el.getAttribute('data-plugin')]; + if (!plugin) { return; } - $content.find('media-tag, pre.markmap').each(function (i, el) { - if (el.nodeName.toLowerCase() === "pre") { - var clone = el.cloneNode(); return void mts.push({ svg: clone, render: function () { var $el = $(clone); - $el.text(clone.getAttribute('markmap-source')); + $el.text(clone.getAttribute(plugin.attr)); $el.attr('data-processed', ''); - renderMermaid($el); + plugin.render($el); } }); } @@ -494,44 +494,36 @@ define([ }); }); - // Find initial position + + // If the element is a mermaid or markmap svg, get the corresponding attribute + var isSvg = $mt.is('pre[data-plugin]'); + var plugin = isSvg && plugins[$mt.attr('data-plugin')]; + console.log(plugin); + + // Get initial idx var idx = -1; mts.some(function (obj, i) { - if (isSvg && $mt.attr('mermaid-source') === $(obj.svg).attr('mermaid-source')) { + if (isSvg && $mt.attr(plugin.attr) === $(obj.svg).attr(plugin.attr)) { idx = i; return true; } - if (isSvg && $mt.attr('markmap-source') === $(obj.svg).attr('markmap-source')) { - idx = i; - return true; - } if (!isSvg && obj.src === $mt.attr('src')) { idx = i; return true; } }); + // Not found, re-render if (idx === -1) { - if (isSvg && $mt.attr('mermaid-source')) { - var clone = $mt[0].cloneNode(); - mts.unshift({ - svg: clone, - render: function () { - var $el = $(clone); - $el.text(clone.getAttribute('mermaid-source')); - $el.attr('data-processed', ''); - renderMermaid($el); - } - }); - } else if (isSvg && $mt.attr('markmap-source')) { + if (isSvg && $mt.attr(plugin.attr)) { var clone = $mt[0].cloneNode(); mts.unshift({ svg: clone, render: function () { var $el = $(clone); - $el.text(clone.getAttribute('markmap-source')); + $el.text(clone.getAttribute(plugin.attr)); $el.attr('data-processed', ''); - renderMarkmap($el); + plugin.render($el); } }); } else { @@ -608,47 +600,9 @@ define([ }); // loop over mermaid elements in the rendered content - $content.find('pre.mermaid').each(function (index, el) { - var $el = $(el); - $el.off('contextmenu').on('contextmenu', function (e) { - e.preventDefault(); - $(contextMenu.menu).data('mediatag', $el); - $(contextMenu.menu).find('li:not(.cp-svg)').hide(); - contextMenu.show(e); - }); - $el.off('dblclick click preview'); - $el.on('preview', onPreview($el)); - $el.on('dblclick click', function () { - $el.trigger('preview'); - }); - - // since you've simply drawn the content that was supplied via markdown - // you can assume that the index of your rendered charts matches that - // of those in the markdown source. - var src = mermaid_source[index]; - el.setAttribute('mermaid-source', src); - var cached = mermaid_cache[src]; - - // check if you had cached a pre-rendered instance of the supplied source - if (typeof(cached) !== 'object') { - try { - renderMermaid($el); - } catch (e) { console.error(e); } - return; - } - - // if there's a cached rendering, empty out the contained source code - // which would otherwise be drawn again. - // apparently this is the fastest way to empty out an element - while (el.firstChild) { el.removeChild(el.firstChild); } //el.innerHTML = ''; - // insert the cached graph - el.appendChild(cached); - // and set a flag indicating that this graph need not be reprocessed - el.setAttribute('data-processed', true); - }); - - // loop over markmap elements in the rendered content - $content.find('pre.markmap').each(function (index, el) { + $content.find('pre[data-plugin]').each(function (index, el) { + var plugin = plugins[el.getAttribute('data-plugin')]; + if (!plugin) { return; } var $el = $(el); $el.off('contextmenu').on('contextmenu', function (e) { e.preventDefault(); @@ -665,14 +619,14 @@ define([ // since you've simply drawn the content that was supplied via markdown // you can assume that the index of your rendered charts matches that // of those in the markdown source. - var src = markmap_source[index]; - el.setAttribute('markmap-source', src); - var cached = markmap_cache[src]; + var src = plugin.source[index]; + el.setAttribute(plugin.attr, src); + var cached = plugin.cache[src]; // check if you had cached a pre-rendered instance of the supplied source if (typeof(cached) !== 'object') { try { - renderMarkmap($el); + plugin.render($el); } catch (e) { console.error(e); } return; } @@ -686,10 +640,6 @@ define([ // and set a flag indicating that this graph need not be reprocessed el.setAttribute('data-processed', true); }); - - - - } // recover the previous scroll position to avoid jank $parent.scrollTop(scrollTop); diff --git a/www/common/inner/common-mediatag.js b/www/common/inner/common-mediatag.js index 9009d2557..0fc35c1c3 100644 --- a/www/common/inner/common-mediatag.js +++ b/www/common/inner/common-mediatag.js @@ -256,7 +256,7 @@ define([ } // Reset modal - $inner.find('media-tag, pre.mermaid').detach(); + $inner.find('media-tag, pre[data-plugin]').detach(); $spinner.show(); // Check src and cryptkey diff --git a/www/lib/markmap/transform.min.js b/www/lib/markmap/transform.min.js new file mode 100644 index 000000000..dea3b437b --- /dev/null +++ b/www/lib/markmap/transform.min.js @@ -0,0 +1,2 @@ +/*! markmap-lib v0.7.11 | MIT License */ +define(["exports"],(function(e){"use strict";var r={Aacute:"Á",aacute:"á",Abreve:"Ă",abreve:"ă",ac:"∾",acd:"∿",acE:"∾̳",Acirc:"Â",acirc:"â",acute:"´",Acy:"А",acy:"а",AElig:"Æ",aelig:"æ",af:"⁡",Afr:"𝔄",afr:"𝔞",Agrave:"À",agrave:"à",alefsym:"ℵ",aleph:"ℵ",Alpha:"Α",alpha:"α",Amacr:"Ā",amacr:"ā",amalg:"⨿",AMP:"&",amp:"&",And:"⩓",and:"∧",andand:"⩕",andd:"⩜",andslope:"⩘",andv:"⩚",ang:"∠",ange:"⦤",angle:"∠",angmsd:"∡",angmsdaa:"⦨",angmsdab:"⦩",angmsdac:"⦪",angmsdad:"⦫",angmsdae:"⦬",angmsdaf:"⦭",angmsdag:"⦮",angmsdah:"⦯",angrt:"∟",angrtvb:"⊾",angrtvbd:"⦝",angsph:"∢",angst:"Å",angzarr:"⍼",Aogon:"Ą",aogon:"ą",Aopf:"𝔸",aopf:"𝕒",ap:"≈",apacir:"⩯",apE:"⩰",ape:"≊",apid:"≋",apos:"'",ApplyFunction:"⁡",approx:"≈",approxeq:"≊",Aring:"Å",aring:"å",Ascr:"𝒜",ascr:"𝒶",Assign:"≔",ast:"*",asymp:"≈",asympeq:"≍",Atilde:"Ã",atilde:"ã",Auml:"Ä",auml:"ä",awconint:"∳",awint:"⨑",backcong:"≌",backepsilon:"϶",backprime:"‵",backsim:"∽",backsimeq:"⋍",Backslash:"∖",Barv:"⫧",barvee:"⊽",Barwed:"⌆",barwed:"⌅",barwedge:"⌅",bbrk:"⎵",bbrktbrk:"⎶",bcong:"≌",Bcy:"Б",bcy:"б",bdquo:"„",becaus:"∵",Because:"∵",because:"∵",bemptyv:"⦰",bepsi:"϶",bernou:"ℬ",Bernoullis:"ℬ",Beta:"Β",beta:"β",beth:"ℶ",between:"≬",Bfr:"𝔅",bfr:"𝔟",bigcap:"⋂",bigcirc:"◯",bigcup:"⋃",bigodot:"⨀",bigoplus:"⨁",bigotimes:"⨂",bigsqcup:"⨆",bigstar:"★",bigtriangledown:"▽",bigtriangleup:"△",biguplus:"⨄",bigvee:"⋁",bigwedge:"⋀",bkarow:"⤍",blacklozenge:"⧫",blacksquare:"▪",blacktriangle:"▴",blacktriangledown:"▾",blacktriangleleft:"◂",blacktriangleright:"▸",blank:"␣",blk12:"▒",blk14:"░",blk34:"▓",block:"█",bne:"=⃥",bnequiv:"≡⃥",bNot:"⫭",bnot:"⌐",Bopf:"𝔹",bopf:"𝕓",bot:"⊥",bottom:"⊥",bowtie:"⋈",boxbox:"⧉",boxDL:"╗",boxDl:"╖",boxdL:"╕",boxdl:"┐",boxDR:"╔",boxDr:"╓",boxdR:"╒",boxdr:"┌",boxH:"═",boxh:"─",boxHD:"╦",boxHd:"╤",boxhD:"╥",boxhd:"┬",boxHU:"╩",boxHu:"╧",boxhU:"╨",boxhu:"┴",boxminus:"⊟",boxplus:"⊞",boxtimes:"⊠",boxUL:"╝",boxUl:"╜",boxuL:"╛",boxul:"┘",boxUR:"╚",boxUr:"╙",boxuR:"╘",boxur:"└",boxV:"║",boxv:"│",boxVH:"╬",boxVh:"╫",boxvH:"╪",boxvh:"┼",boxVL:"╣",boxVl:"╢",boxvL:"╡",boxvl:"┤",boxVR:"╠",boxVr:"╟",boxvR:"╞",boxvr:"├",bprime:"‵",Breve:"˘",breve:"˘",brvbar:"¦",Bscr:"ℬ",bscr:"𝒷",bsemi:"⁏",bsim:"∽",bsime:"⋍",bsol:"\\",bsolb:"⧅",bsolhsub:"⟈",bull:"•",bullet:"•",bump:"≎",bumpE:"⪮",bumpe:"≏",Bumpeq:"≎",bumpeq:"≏",Cacute:"Ć",cacute:"ć",Cap:"⋒",cap:"∩",capand:"⩄",capbrcup:"⩉",capcap:"⩋",capcup:"⩇",capdot:"⩀",CapitalDifferentialD:"ⅅ",caps:"∩︀",caret:"⁁",caron:"ˇ",Cayleys:"ℭ",ccaps:"⩍",Ccaron:"Č",ccaron:"č",Ccedil:"Ç",ccedil:"ç",Ccirc:"Ĉ",ccirc:"ĉ",Cconint:"∰",ccups:"⩌",ccupssm:"⩐",Cdot:"Ċ",cdot:"ċ",cedil:"¸",Cedilla:"¸",cemptyv:"⦲",cent:"¢",CenterDot:"·",centerdot:"·",Cfr:"ℭ",cfr:"𝔠",CHcy:"Ч",chcy:"ч",check:"✓",checkmark:"✓",Chi:"Χ",chi:"χ",cir:"○",circ:"ˆ",circeq:"≗",circlearrowleft:"↺",circlearrowright:"↻",circledast:"⊛",circledcirc:"⊚",circleddash:"⊝",CircleDot:"⊙",circledR:"®",circledS:"Ⓢ",CircleMinus:"⊖",CirclePlus:"⊕",CircleTimes:"⊗",cirE:"⧃",cire:"≗",cirfnint:"⨐",cirmid:"⫯",cirscir:"⧂",ClockwiseContourIntegral:"∲",CloseCurlyDoubleQuote:"”",CloseCurlyQuote:"’",clubs:"♣",clubsuit:"♣",Colon:"∷",colon:":",Colone:"⩴",colone:"≔",coloneq:"≔",comma:",",commat:"@",comp:"∁",compfn:"∘",complement:"∁",complexes:"ℂ",cong:"≅",congdot:"⩭",Congruent:"≡",Conint:"∯",conint:"∮",ContourIntegral:"∮",Copf:"ℂ",copf:"𝕔",coprod:"∐",Coproduct:"∐",COPY:"©",copy:"©",copysr:"℗",CounterClockwiseContourIntegral:"∳",crarr:"↵",Cross:"⨯",cross:"✗",Cscr:"𝒞",cscr:"𝒸",csub:"⫏",csube:"⫑",csup:"⫐",csupe:"⫒",ctdot:"⋯",cudarrl:"⤸",cudarrr:"⤵",cuepr:"⋞",cuesc:"⋟",cularr:"↶",cularrp:"⤽",Cup:"⋓",cup:"∪",cupbrcap:"⩈",CupCap:"≍",cupcap:"⩆",cupcup:"⩊",cupdot:"⊍",cupor:"⩅",cups:"∪︀",curarr:"↷",curarrm:"⤼",curlyeqprec:"⋞",curlyeqsucc:"⋟",curlyvee:"⋎",curlywedge:"⋏",curren:"¤",curvearrowleft:"↶",curvearrowright:"↷",cuvee:"⋎",cuwed:"⋏",cwconint:"∲",cwint:"∱",cylcty:"⌭",Dagger:"‡",dagger:"†",daleth:"ℸ",Darr:"↡",dArr:"⇓",darr:"↓",dash:"‐",Dashv:"⫤",dashv:"⊣",dbkarow:"⤏",dblac:"˝",Dcaron:"Ď",dcaron:"ď",Dcy:"Д",dcy:"д",DD:"ⅅ",dd:"ⅆ",ddagger:"‡",ddarr:"⇊",DDotrahd:"⤑",ddotseq:"⩷",deg:"°",Del:"∇",Delta:"Δ",delta:"δ",demptyv:"⦱",dfisht:"⥿",Dfr:"𝔇",dfr:"𝔡",dHar:"⥥",dharl:"⇃",dharr:"⇂",DiacriticalAcute:"´",DiacriticalDot:"˙",DiacriticalDoubleAcute:"˝",DiacriticalGrave:"`",DiacriticalTilde:"˜",diam:"⋄",Diamond:"⋄",diamond:"⋄",diamondsuit:"♦",diams:"♦",die:"¨",DifferentialD:"ⅆ",digamma:"ϝ",disin:"⋲",div:"÷",divide:"÷",divideontimes:"⋇",divonx:"⋇",DJcy:"Ђ",djcy:"ђ",dlcorn:"⌞",dlcrop:"⌍",dollar:"$",Dopf:"𝔻",dopf:"𝕕",Dot:"¨",dot:"˙",DotDot:"⃜",doteq:"≐",doteqdot:"≑",DotEqual:"≐",dotminus:"∸",dotplus:"∔",dotsquare:"⊡",doublebarwedge:"⌆",DoubleContourIntegral:"∯",DoubleDot:"¨",DoubleDownArrow:"⇓",DoubleLeftArrow:"⇐",DoubleLeftRightArrow:"⇔",DoubleLeftTee:"⫤",DoubleLongLeftArrow:"⟸",DoubleLongLeftRightArrow:"⟺",DoubleLongRightArrow:"⟹",DoubleRightArrow:"⇒",DoubleRightTee:"⊨",DoubleUpArrow:"⇑",DoubleUpDownArrow:"⇕",DoubleVerticalBar:"∥",DownArrow:"↓",Downarrow:"⇓",downarrow:"↓",DownArrowBar:"⤓",DownArrowUpArrow:"⇵",DownBreve:"̑",downdownarrows:"⇊",downharpoonleft:"⇃",downharpoonright:"⇂",DownLeftRightVector:"⥐",DownLeftTeeVector:"⥞",DownLeftVector:"↽",DownLeftVectorBar:"⥖",DownRightTeeVector:"⥟",DownRightVector:"⇁",DownRightVectorBar:"⥗",DownTee:"⊤",DownTeeArrow:"↧",drbkarow:"⤐",drcorn:"⌟",drcrop:"⌌",Dscr:"𝒟",dscr:"𝒹",DScy:"Ѕ",dscy:"ѕ",dsol:"⧶",Dstrok:"Đ",dstrok:"đ",dtdot:"⋱",dtri:"▿",dtrif:"▾",duarr:"⇵",duhar:"⥯",dwangle:"⦦",DZcy:"Џ",dzcy:"џ",dzigrarr:"⟿",Eacute:"É",eacute:"é",easter:"⩮",Ecaron:"Ě",ecaron:"ě",ecir:"≖",Ecirc:"Ê",ecirc:"ê",ecolon:"≕",Ecy:"Э",ecy:"э",eDDot:"⩷",Edot:"Ė",eDot:"≑",edot:"ė",ee:"ⅇ",efDot:"≒",Efr:"𝔈",efr:"𝔢",eg:"⪚",Egrave:"È",egrave:"è",egs:"⪖",egsdot:"⪘",el:"⪙",Element:"∈",elinters:"⏧",ell:"ℓ",els:"⪕",elsdot:"⪗",Emacr:"Ē",emacr:"ē",empty:"∅",emptyset:"∅",EmptySmallSquare:"◻",emptyv:"∅",EmptyVerySmallSquare:"▫",emsp:" ",emsp13:" ",emsp14:" ",ENG:"Ŋ",eng:"ŋ",ensp:" ",Eogon:"Ę",eogon:"ę",Eopf:"𝔼",eopf:"𝕖",epar:"⋕",eparsl:"⧣",eplus:"⩱",epsi:"ε",Epsilon:"Ε",epsilon:"ε",epsiv:"ϵ",eqcirc:"≖",eqcolon:"≕",eqsim:"≂",eqslantgtr:"⪖",eqslantless:"⪕",Equal:"⩵",equals:"=",EqualTilde:"≂",equest:"≟",Equilibrium:"⇌",equiv:"≡",equivDD:"⩸",eqvparsl:"⧥",erarr:"⥱",erDot:"≓",Escr:"ℰ",escr:"ℯ",esdot:"≐",Esim:"⩳",esim:"≂",Eta:"Η",eta:"η",ETH:"Ð",eth:"ð",Euml:"Ë",euml:"ë",euro:"€",excl:"!",exist:"∃",Exists:"∃",expectation:"ℰ",ExponentialE:"ⅇ",exponentiale:"ⅇ",fallingdotseq:"≒",Fcy:"Ф",fcy:"ф",female:"♀",ffilig:"ffi",fflig:"ff",ffllig:"ffl",Ffr:"𝔉",ffr:"𝔣",filig:"fi",FilledSmallSquare:"◼",FilledVerySmallSquare:"▪",fjlig:"fj",flat:"♭",fllig:"fl",fltns:"▱",fnof:"ƒ",Fopf:"𝔽",fopf:"𝕗",ForAll:"∀",forall:"∀",fork:"⋔",forkv:"⫙",Fouriertrf:"ℱ",fpartint:"⨍",frac12:"½",frac13:"⅓",frac14:"¼",frac15:"⅕",frac16:"⅙",frac18:"⅛",frac23:"⅔",frac25:"⅖",frac34:"¾",frac35:"⅗",frac38:"⅜",frac45:"⅘",frac56:"⅚",frac58:"⅝",frac78:"⅞",frasl:"⁄",frown:"⌢",Fscr:"ℱ",fscr:"𝒻",gacute:"ǵ",Gamma:"Γ",gamma:"γ",Gammad:"Ϝ",gammad:"ϝ",gap:"⪆",Gbreve:"Ğ",gbreve:"ğ",Gcedil:"Ģ",Gcirc:"Ĝ",gcirc:"ĝ",Gcy:"Г",gcy:"г",Gdot:"Ġ",gdot:"ġ",gE:"≧",ge:"≥",gEl:"⪌",gel:"⋛",geq:"≥",geqq:"≧",geqslant:"⩾",ges:"⩾",gescc:"⪩",gesdot:"⪀",gesdoto:"⪂",gesdotol:"⪄",gesl:"⋛︀",gesles:"⪔",Gfr:"𝔊",gfr:"𝔤",Gg:"⋙",gg:"≫",ggg:"⋙",gimel:"ℷ",GJcy:"Ѓ",gjcy:"ѓ",gl:"≷",gla:"⪥",glE:"⪒",glj:"⪤",gnap:"⪊",gnapprox:"⪊",gnE:"≩",gne:"⪈",gneq:"⪈",gneqq:"≩",gnsim:"⋧",Gopf:"𝔾",gopf:"𝕘",grave:"`",GreaterEqual:"≥",GreaterEqualLess:"⋛",GreaterFullEqual:"≧",GreaterGreater:"⪢",GreaterLess:"≷",GreaterSlantEqual:"⩾",GreaterTilde:"≳",Gscr:"𝒢",gscr:"ℊ",gsim:"≳",gsime:"⪎",gsiml:"⪐",GT:">",Gt:"≫",gt:">",gtcc:"⪧",gtcir:"⩺",gtdot:"⋗",gtlPar:"⦕",gtquest:"⩼",gtrapprox:"⪆",gtrarr:"⥸",gtrdot:"⋗",gtreqless:"⋛",gtreqqless:"⪌",gtrless:"≷",gtrsim:"≳",gvertneqq:"≩︀",gvnE:"≩︀",Hacek:"ˇ",hairsp:" ",half:"½",hamilt:"ℋ",HARDcy:"Ъ",hardcy:"ъ",hArr:"⇔",harr:"↔",harrcir:"⥈",harrw:"↭",Hat:"^",hbar:"ℏ",Hcirc:"Ĥ",hcirc:"ĥ",hearts:"♥",heartsuit:"♥",hellip:"…",hercon:"⊹",Hfr:"ℌ",hfr:"𝔥",HilbertSpace:"ℋ",hksearow:"⤥",hkswarow:"⤦",hoarr:"⇿",homtht:"∻",hookleftarrow:"↩",hookrightarrow:"↪",Hopf:"ℍ",hopf:"𝕙",horbar:"―",HorizontalLine:"─",Hscr:"ℋ",hscr:"𝒽",hslash:"ℏ",Hstrok:"Ħ",hstrok:"ħ",HumpDownHump:"≎",HumpEqual:"≏",hybull:"⁃",hyphen:"‐",Iacute:"Í",iacute:"í",ic:"⁣",Icirc:"Î",icirc:"î",Icy:"И",icy:"и",Idot:"İ",IEcy:"Е",iecy:"е",iexcl:"¡",iff:"⇔",Ifr:"ℑ",ifr:"𝔦",Igrave:"Ì",igrave:"ì",ii:"ⅈ",iiiint:"⨌",iiint:"∭",iinfin:"⧜",iiota:"℩",IJlig:"IJ",ijlig:"ij",Im:"ℑ",Imacr:"Ī",imacr:"ī",image:"ℑ",ImaginaryI:"ⅈ",imagline:"ℐ",imagpart:"ℑ",imath:"ı",imof:"⊷",imped:"Ƶ",Implies:"⇒",in:"∈",incare:"℅",infin:"∞",infintie:"⧝",inodot:"ı",Int:"∬",int:"∫",intcal:"⊺",integers:"ℤ",Integral:"∫",intercal:"⊺",Intersection:"⋂",intlarhk:"⨗",intprod:"⨼",InvisibleComma:"⁣",InvisibleTimes:"⁢",IOcy:"Ё",iocy:"ё",Iogon:"Į",iogon:"į",Iopf:"𝕀",iopf:"𝕚",Iota:"Ι",iota:"ι",iprod:"⨼",iquest:"¿",Iscr:"ℐ",iscr:"𝒾",isin:"∈",isindot:"⋵",isinE:"⋹",isins:"⋴",isinsv:"⋳",isinv:"∈",it:"⁢",Itilde:"Ĩ",itilde:"ĩ",Iukcy:"І",iukcy:"і",Iuml:"Ï",iuml:"ï",Jcirc:"Ĵ",jcirc:"ĵ",Jcy:"Й",jcy:"й",Jfr:"𝔍",jfr:"𝔧",jmath:"ȷ",Jopf:"𝕁",jopf:"𝕛",Jscr:"𝒥",jscr:"𝒿",Jsercy:"Ј",jsercy:"ј",Jukcy:"Є",jukcy:"є",Kappa:"Κ",kappa:"κ",kappav:"ϰ",Kcedil:"Ķ",kcedil:"ķ",Kcy:"К",kcy:"к",Kfr:"𝔎",kfr:"𝔨",kgreen:"ĸ",KHcy:"Х",khcy:"х",KJcy:"Ќ",kjcy:"ќ",Kopf:"𝕂",kopf:"𝕜",Kscr:"𝒦",kscr:"𝓀",lAarr:"⇚",Lacute:"Ĺ",lacute:"ĺ",laemptyv:"⦴",lagran:"ℒ",Lambda:"Λ",lambda:"λ",Lang:"⟪",lang:"⟨",langd:"⦑",langle:"⟨",lap:"⪅",Laplacetrf:"ℒ",laquo:"«",Larr:"↞",lArr:"⇐",larr:"←",larrb:"⇤",larrbfs:"⤟",larrfs:"⤝",larrhk:"↩",larrlp:"↫",larrpl:"⤹",larrsim:"⥳",larrtl:"↢",lat:"⪫",lAtail:"⤛",latail:"⤙",late:"⪭",lates:"⪭︀",lBarr:"⤎",lbarr:"⤌",lbbrk:"❲",lbrace:"{",lbrack:"[",lbrke:"⦋",lbrksld:"⦏",lbrkslu:"⦍",Lcaron:"Ľ",lcaron:"ľ",Lcedil:"Ļ",lcedil:"ļ",lceil:"⌈",lcub:"{",Lcy:"Л",lcy:"л",ldca:"⤶",ldquo:"“",ldquor:"„",ldrdhar:"⥧",ldrushar:"⥋",ldsh:"↲",lE:"≦",le:"≤",LeftAngleBracket:"⟨",LeftArrow:"←",Leftarrow:"⇐",leftarrow:"←",LeftArrowBar:"⇤",LeftArrowRightArrow:"⇆",leftarrowtail:"↢",LeftCeiling:"⌈",LeftDoubleBracket:"⟦",LeftDownTeeVector:"⥡",LeftDownVector:"⇃",LeftDownVectorBar:"⥙",LeftFloor:"⌊",leftharpoondown:"↽",leftharpoonup:"↼",leftleftarrows:"⇇",LeftRightArrow:"↔",Leftrightarrow:"⇔",leftrightarrow:"↔",leftrightarrows:"⇆",leftrightharpoons:"⇋",leftrightsquigarrow:"↭",LeftRightVector:"⥎",LeftTee:"⊣",LeftTeeArrow:"↤",LeftTeeVector:"⥚",leftthreetimes:"⋋",LeftTriangle:"⊲",LeftTriangleBar:"⧏",LeftTriangleEqual:"⊴",LeftUpDownVector:"⥑",LeftUpTeeVector:"⥠",LeftUpVector:"↿",LeftUpVectorBar:"⥘",LeftVector:"↼",LeftVectorBar:"⥒",lEg:"⪋",leg:"⋚",leq:"≤",leqq:"≦",leqslant:"⩽",les:"⩽",lescc:"⪨",lesdot:"⩿",lesdoto:"⪁",lesdotor:"⪃",lesg:"⋚︀",lesges:"⪓",lessapprox:"⪅",lessdot:"⋖",lesseqgtr:"⋚",lesseqqgtr:"⪋",LessEqualGreater:"⋚",LessFullEqual:"≦",LessGreater:"≶",lessgtr:"≶",LessLess:"⪡",lesssim:"≲",LessSlantEqual:"⩽",LessTilde:"≲",lfisht:"⥼",lfloor:"⌊",Lfr:"𝔏",lfr:"𝔩",lg:"≶",lgE:"⪑",lHar:"⥢",lhard:"↽",lharu:"↼",lharul:"⥪",lhblk:"▄",LJcy:"Љ",ljcy:"љ",Ll:"⋘",ll:"≪",llarr:"⇇",llcorner:"⌞",Lleftarrow:"⇚",llhard:"⥫",lltri:"◺",Lmidot:"Ŀ",lmidot:"ŀ",lmoust:"⎰",lmoustache:"⎰",lnap:"⪉",lnapprox:"⪉",lnE:"≨",lne:"⪇",lneq:"⪇",lneqq:"≨",lnsim:"⋦",loang:"⟬",loarr:"⇽",lobrk:"⟦",LongLeftArrow:"⟵",Longleftarrow:"⟸",longleftarrow:"⟵",LongLeftRightArrow:"⟷",Longleftrightarrow:"⟺",longleftrightarrow:"⟷",longmapsto:"⟼",LongRightArrow:"⟶",Longrightarrow:"⟹",longrightarrow:"⟶",looparrowleft:"↫",looparrowright:"↬",lopar:"⦅",Lopf:"𝕃",lopf:"𝕝",loplus:"⨭",lotimes:"⨴",lowast:"∗",lowbar:"_",LowerLeftArrow:"↙",LowerRightArrow:"↘",loz:"◊",lozenge:"◊",lozf:"⧫",lpar:"(",lparlt:"⦓",lrarr:"⇆",lrcorner:"⌟",lrhar:"⇋",lrhard:"⥭",lrm:"‎",lrtri:"⊿",lsaquo:"‹",Lscr:"ℒ",lscr:"𝓁",Lsh:"↰",lsh:"↰",lsim:"≲",lsime:"⪍",lsimg:"⪏",lsqb:"[",lsquo:"‘",lsquor:"‚",Lstrok:"Ł",lstrok:"ł",LT:"<",Lt:"≪",lt:"<",ltcc:"⪦",ltcir:"⩹",ltdot:"⋖",lthree:"⋋",ltimes:"⋉",ltlarr:"⥶",ltquest:"⩻",ltri:"◃",ltrie:"⊴",ltrif:"◂",ltrPar:"⦖",lurdshar:"⥊",luruhar:"⥦",lvertneqq:"≨︀",lvnE:"≨︀",macr:"¯",male:"♂",malt:"✠",maltese:"✠",Map:"⤅",map:"↦",mapsto:"↦",mapstodown:"↧",mapstoleft:"↤",mapstoup:"↥",marker:"▮",mcomma:"⨩",Mcy:"М",mcy:"м",mdash:"—",mDDot:"∺",measuredangle:"∡",MediumSpace:" ",Mellintrf:"ℳ",Mfr:"𝔐",mfr:"𝔪",mho:"℧",micro:"µ",mid:"∣",midast:"*",midcir:"⫰",middot:"·",minus:"−",minusb:"⊟",minusd:"∸",minusdu:"⨪",MinusPlus:"∓",mlcp:"⫛",mldr:"…",mnplus:"∓",models:"⊧",Mopf:"𝕄",mopf:"𝕞",mp:"∓",Mscr:"ℳ",mscr:"𝓂",mstpos:"∾",Mu:"Μ",mu:"μ",multimap:"⊸",mumap:"⊸",nabla:"∇",Nacute:"Ń",nacute:"ń",nang:"∠⃒",nap:"≉",napE:"⩰̸",napid:"≋̸",napos:"ʼn",napprox:"≉",natur:"♮",natural:"♮",naturals:"ℕ",nbsp:" ",nbump:"≎̸",nbumpe:"≏̸",ncap:"⩃",Ncaron:"Ň",ncaron:"ň",Ncedil:"Ņ",ncedil:"ņ",ncong:"≇",ncongdot:"⩭̸",ncup:"⩂",Ncy:"Н",ncy:"н",ndash:"–",ne:"≠",nearhk:"⤤",neArr:"⇗",nearr:"↗",nearrow:"↗",nedot:"≐̸",NegativeMediumSpace:"​",NegativeThickSpace:"​",NegativeThinSpace:"​",NegativeVeryThinSpace:"​",nequiv:"≢",nesear:"⤨",nesim:"≂̸",NestedGreaterGreater:"≫",NestedLessLess:"≪",NewLine:"\n",nexist:"∄",nexists:"∄",Nfr:"𝔑",nfr:"𝔫",ngE:"≧̸",nge:"≱",ngeq:"≱",ngeqq:"≧̸",ngeqslant:"⩾̸",nges:"⩾̸",nGg:"⋙̸",ngsim:"≵",nGt:"≫⃒",ngt:"≯",ngtr:"≯",nGtv:"≫̸",nhArr:"⇎",nharr:"↮",nhpar:"⫲",ni:"∋",nis:"⋼",nisd:"⋺",niv:"∋",NJcy:"Њ",njcy:"њ",nlArr:"⇍",nlarr:"↚",nldr:"‥",nlE:"≦̸",nle:"≰",nLeftarrow:"⇍",nleftarrow:"↚",nLeftrightarrow:"⇎",nleftrightarrow:"↮",nleq:"≰",nleqq:"≦̸",nleqslant:"⩽̸",nles:"⩽̸",nless:"≮",nLl:"⋘̸",nlsim:"≴",nLt:"≪⃒",nlt:"≮",nltri:"⋪",nltrie:"⋬",nLtv:"≪̸",nmid:"∤",NoBreak:"⁠",NonBreakingSpace:" ",Nopf:"ℕ",nopf:"𝕟",Not:"⫬",not:"¬",NotCongruent:"≢",NotCupCap:"≭",NotDoubleVerticalBar:"∦",NotElement:"∉",NotEqual:"≠",NotEqualTilde:"≂̸",NotExists:"∄",NotGreater:"≯",NotGreaterEqual:"≱",NotGreaterFullEqual:"≧̸",NotGreaterGreater:"≫̸",NotGreaterLess:"≹",NotGreaterSlantEqual:"⩾̸",NotGreaterTilde:"≵",NotHumpDownHump:"≎̸",NotHumpEqual:"≏̸",notin:"∉",notindot:"⋵̸",notinE:"⋹̸",notinva:"∉",notinvb:"⋷",notinvc:"⋶",NotLeftTriangle:"⋪",NotLeftTriangleBar:"⧏̸",NotLeftTriangleEqual:"⋬",NotLess:"≮",NotLessEqual:"≰",NotLessGreater:"≸",NotLessLess:"≪̸",NotLessSlantEqual:"⩽̸",NotLessTilde:"≴",NotNestedGreaterGreater:"⪢̸",NotNestedLessLess:"⪡̸",notni:"∌",notniva:"∌",notnivb:"⋾",notnivc:"⋽",NotPrecedes:"⊀",NotPrecedesEqual:"⪯̸",NotPrecedesSlantEqual:"⋠",NotReverseElement:"∌",NotRightTriangle:"⋫",NotRightTriangleBar:"⧐̸",NotRightTriangleEqual:"⋭",NotSquareSubset:"⊏̸",NotSquareSubsetEqual:"⋢",NotSquareSuperset:"⊐̸",NotSquareSupersetEqual:"⋣",NotSubset:"⊂⃒",NotSubsetEqual:"⊈",NotSucceeds:"⊁",NotSucceedsEqual:"⪰̸",NotSucceedsSlantEqual:"⋡",NotSucceedsTilde:"≿̸",NotSuperset:"⊃⃒",NotSupersetEqual:"⊉",NotTilde:"≁",NotTildeEqual:"≄",NotTildeFullEqual:"≇",NotTildeTilde:"≉",NotVerticalBar:"∤",npar:"∦",nparallel:"∦",nparsl:"⫽⃥",npart:"∂̸",npolint:"⨔",npr:"⊀",nprcue:"⋠",npre:"⪯̸",nprec:"⊀",npreceq:"⪯̸",nrArr:"⇏",nrarr:"↛",nrarrc:"⤳̸",nrarrw:"↝̸",nRightarrow:"⇏",nrightarrow:"↛",nrtri:"⋫",nrtrie:"⋭",nsc:"⊁",nsccue:"⋡",nsce:"⪰̸",Nscr:"𝒩",nscr:"𝓃",nshortmid:"∤",nshortparallel:"∦",nsim:"≁",nsime:"≄",nsimeq:"≄",nsmid:"∤",nspar:"∦",nsqsube:"⋢",nsqsupe:"⋣",nsub:"⊄",nsubE:"⫅̸",nsube:"⊈",nsubset:"⊂⃒",nsubseteq:"⊈",nsubseteqq:"⫅̸",nsucc:"⊁",nsucceq:"⪰̸",nsup:"⊅",nsupE:"⫆̸",nsupe:"⊉",nsupset:"⊃⃒",nsupseteq:"⊉",nsupseteqq:"⫆̸",ntgl:"≹",Ntilde:"Ñ",ntilde:"ñ",ntlg:"≸",ntriangleleft:"⋪",ntrianglelefteq:"⋬",ntriangleright:"⋫",ntrianglerighteq:"⋭",Nu:"Ν",nu:"ν",num:"#",numero:"№",numsp:" ",nvap:"≍⃒",nVDash:"⊯",nVdash:"⊮",nvDash:"⊭",nvdash:"⊬",nvge:"≥⃒",nvgt:">⃒",nvHarr:"⤄",nvinfin:"⧞",nvlArr:"⤂",nvle:"≤⃒",nvlt:"<⃒",nvltrie:"⊴⃒",nvrArr:"⤃",nvrtrie:"⊵⃒",nvsim:"∼⃒",nwarhk:"⤣",nwArr:"⇖",nwarr:"↖",nwarrow:"↖",nwnear:"⤧",Oacute:"Ó",oacute:"ó",oast:"⊛",ocir:"⊚",Ocirc:"Ô",ocirc:"ô",Ocy:"О",ocy:"о",odash:"⊝",Odblac:"Ő",odblac:"ő",odiv:"⨸",odot:"⊙",odsold:"⦼",OElig:"Œ",oelig:"œ",ofcir:"⦿",Ofr:"𝔒",ofr:"𝔬",ogon:"˛",Ograve:"Ò",ograve:"ò",ogt:"⧁",ohbar:"⦵",ohm:"Ω",oint:"∮",olarr:"↺",olcir:"⦾",olcross:"⦻",oline:"‾",olt:"⧀",Omacr:"Ō",omacr:"ō",Omega:"Ω",omega:"ω",Omicron:"Ο",omicron:"ο",omid:"⦶",ominus:"⊖",Oopf:"𝕆",oopf:"𝕠",opar:"⦷",OpenCurlyDoubleQuote:"“",OpenCurlyQuote:"‘",operp:"⦹",oplus:"⊕",Or:"⩔",or:"∨",orarr:"↻",ord:"⩝",order:"ℴ",orderof:"ℴ",ordf:"ª",ordm:"º",origof:"⊶",oror:"⩖",orslope:"⩗",orv:"⩛",oS:"Ⓢ",Oscr:"𝒪",oscr:"ℴ",Oslash:"Ø",oslash:"ø",osol:"⊘",Otilde:"Õ",otilde:"õ",Otimes:"⨷",otimes:"⊗",otimesas:"⨶",Ouml:"Ö",ouml:"ö",ovbar:"⌽",OverBar:"‾",OverBrace:"⏞",OverBracket:"⎴",OverParenthesis:"⏜",par:"∥",para:"¶",parallel:"∥",parsim:"⫳",parsl:"⫽",part:"∂",PartialD:"∂",Pcy:"П",pcy:"п",percnt:"%",period:".",permil:"‰",perp:"⊥",pertenk:"‱",Pfr:"𝔓",pfr:"𝔭",Phi:"Φ",phi:"φ",phiv:"ϕ",phmmat:"ℳ",phone:"☎",Pi:"Π",pi:"π",pitchfork:"⋔",piv:"ϖ",planck:"ℏ",planckh:"ℎ",plankv:"ℏ",plus:"+",plusacir:"⨣",plusb:"⊞",pluscir:"⨢",plusdo:"∔",plusdu:"⨥",pluse:"⩲",PlusMinus:"±",plusmn:"±",plussim:"⨦",plustwo:"⨧",pm:"±",Poincareplane:"ℌ",pointint:"⨕",Popf:"ℙ",popf:"𝕡",pound:"£",Pr:"⪻",pr:"≺",prap:"⪷",prcue:"≼",prE:"⪳",pre:"⪯",prec:"≺",precapprox:"⪷",preccurlyeq:"≼",Precedes:"≺",PrecedesEqual:"⪯",PrecedesSlantEqual:"≼",PrecedesTilde:"≾",preceq:"⪯",precnapprox:"⪹",precneqq:"⪵",precnsim:"⋨",precsim:"≾",Prime:"″",prime:"′",primes:"ℙ",prnap:"⪹",prnE:"⪵",prnsim:"⋨",prod:"∏",Product:"∏",profalar:"⌮",profline:"⌒",profsurf:"⌓",prop:"∝",Proportion:"∷",Proportional:"∝",propto:"∝",prsim:"≾",prurel:"⊰",Pscr:"𝒫",pscr:"𝓅",Psi:"Ψ",psi:"ψ",puncsp:" ",Qfr:"𝔔",qfr:"𝔮",qint:"⨌",Qopf:"ℚ",qopf:"𝕢",qprime:"⁗",Qscr:"𝒬",qscr:"𝓆",quaternions:"ℍ",quatint:"⨖",quest:"?",questeq:"≟",QUOT:'"',quot:'"',rAarr:"⇛",race:"∽̱",Racute:"Ŕ",racute:"ŕ",radic:"√",raemptyv:"⦳",Rang:"⟫",rang:"⟩",rangd:"⦒",range:"⦥",rangle:"⟩",raquo:"»",Rarr:"↠",rArr:"⇒",rarr:"→",rarrap:"⥵",rarrb:"⇥",rarrbfs:"⤠",rarrc:"⤳",rarrfs:"⤞",rarrhk:"↪",rarrlp:"↬",rarrpl:"⥅",rarrsim:"⥴",Rarrtl:"⤖",rarrtl:"↣",rarrw:"↝",rAtail:"⤜",ratail:"⤚",ratio:"∶",rationals:"ℚ",RBarr:"⤐",rBarr:"⤏",rbarr:"⤍",rbbrk:"❳",rbrace:"}",rbrack:"]",rbrke:"⦌",rbrksld:"⦎",rbrkslu:"⦐",Rcaron:"Ř",rcaron:"ř",Rcedil:"Ŗ",rcedil:"ŗ",rceil:"⌉",rcub:"}",Rcy:"Р",rcy:"р",rdca:"⤷",rdldhar:"⥩",rdquo:"”",rdquor:"”",rdsh:"↳",Re:"ℜ",real:"ℜ",realine:"ℛ",realpart:"ℜ",reals:"ℝ",rect:"▭",REG:"®",reg:"®",ReverseElement:"∋",ReverseEquilibrium:"⇋",ReverseUpEquilibrium:"⥯",rfisht:"⥽",rfloor:"⌋",Rfr:"ℜ",rfr:"𝔯",rHar:"⥤",rhard:"⇁",rharu:"⇀",rharul:"⥬",Rho:"Ρ",rho:"ρ",rhov:"ϱ",RightAngleBracket:"⟩",RightArrow:"→",Rightarrow:"⇒",rightarrow:"→",RightArrowBar:"⇥",RightArrowLeftArrow:"⇄",rightarrowtail:"↣",RightCeiling:"⌉",RightDoubleBracket:"⟧",RightDownTeeVector:"⥝",RightDownVector:"⇂",RightDownVectorBar:"⥕",RightFloor:"⌋",rightharpoondown:"⇁",rightharpoonup:"⇀",rightleftarrows:"⇄",rightleftharpoons:"⇌",rightrightarrows:"⇉",rightsquigarrow:"↝",RightTee:"⊢",RightTeeArrow:"↦",RightTeeVector:"⥛",rightthreetimes:"⋌",RightTriangle:"⊳",RightTriangleBar:"⧐",RightTriangleEqual:"⊵",RightUpDownVector:"⥏",RightUpTeeVector:"⥜",RightUpVector:"↾",RightUpVectorBar:"⥔",RightVector:"⇀",RightVectorBar:"⥓",ring:"˚",risingdotseq:"≓",rlarr:"⇄",rlhar:"⇌",rlm:"‏",rmoust:"⎱",rmoustache:"⎱",rnmid:"⫮",roang:"⟭",roarr:"⇾",robrk:"⟧",ropar:"⦆",Ropf:"ℝ",ropf:"𝕣",roplus:"⨮",rotimes:"⨵",RoundImplies:"⥰",rpar:")",rpargt:"⦔",rppolint:"⨒",rrarr:"⇉",Rrightarrow:"⇛",rsaquo:"›",Rscr:"ℛ",rscr:"𝓇",Rsh:"↱",rsh:"↱",rsqb:"]",rsquo:"’",rsquor:"’",rthree:"⋌",rtimes:"⋊",rtri:"▹",rtrie:"⊵",rtrif:"▸",rtriltri:"⧎",RuleDelayed:"⧴",ruluhar:"⥨",rx:"℞",Sacute:"Ś",sacute:"ś",sbquo:"‚",Sc:"⪼",sc:"≻",scap:"⪸",Scaron:"Š",scaron:"š",sccue:"≽",scE:"⪴",sce:"⪰",Scedil:"Ş",scedil:"ş",Scirc:"Ŝ",scirc:"ŝ",scnap:"⪺",scnE:"⪶",scnsim:"⋩",scpolint:"⨓",scsim:"≿",Scy:"С",scy:"с",sdot:"⋅",sdotb:"⊡",sdote:"⩦",searhk:"⤥",seArr:"⇘",searr:"↘",searrow:"↘",sect:"§",semi:";",seswar:"⤩",setminus:"∖",setmn:"∖",sext:"✶",Sfr:"𝔖",sfr:"𝔰",sfrown:"⌢",sharp:"♯",SHCHcy:"Щ",shchcy:"щ",SHcy:"Ш",shcy:"ш",ShortDownArrow:"↓",ShortLeftArrow:"←",shortmid:"∣",shortparallel:"∥",ShortRightArrow:"→",ShortUpArrow:"↑",shy:"­",Sigma:"Σ",sigma:"σ",sigmaf:"ς",sigmav:"ς",sim:"∼",simdot:"⩪",sime:"≃",simeq:"≃",simg:"⪞",simgE:"⪠",siml:"⪝",simlE:"⪟",simne:"≆",simplus:"⨤",simrarr:"⥲",slarr:"←",SmallCircle:"∘",smallsetminus:"∖",smashp:"⨳",smeparsl:"⧤",smid:"∣",smile:"⌣",smt:"⪪",smte:"⪬",smtes:"⪬︀",SOFTcy:"Ь",softcy:"ь",sol:"/",solb:"⧄",solbar:"⌿",Sopf:"𝕊",sopf:"𝕤",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t=this.svg.node(),{width:n,height:e}=t.getBoundingClientRect(),{fitRatio:r}=this.options,{minX:i,maxX:o,minY:a,maxY:s}=this.state,u=s-a,l=o-i,c=Math.min(n/u*r,e/l*r,2),h=ar.translate((n-u*c)/2-a*c,(e-l*c)/2-i*c).scale(c);return this.transition(this.svg).call(this.zoom.transform,h).end().catch(Cr)}rescale(t){const n=this.svg.node(),{width:e,height:r}=n.getBoundingClientRect(),i=e/2,o=r/2,a=sr(n),s=a.translate((i-a.x)*(1-t)/a.k,(o-a.y)*(1-t)/a.k).scale(t);return this.transition(this.svg).call(this.zoom.transform,s).end().catch(Cr)}static create(t,n,e){const r=new Gr(t,n);return e&&(r.setData(e),r.fit()),r}}Gr.transformHtml=new class{constructor(){this.listeners=[]}tap(t){this.listeners.push(t)}call(...t){for(const n of this.listeners)n(...t)}},t.Markmap=Gr,t.loadPlugins=async function(t,n){return t=t.map(t=>{if("string"==typeof t){const n=t;(t=Ur[n])||console.warn("[markmap] Unknown plugin: "+n)}return t}).filter(Boolean),Dr(Gr,t,n)},t.markmap=function(t,n,e){return Gr.create(t,e,n)},t.plugins=Ur})); From bacd0c18d5103f6a17c1cf786ad2f9235b17c76f Mon Sep 17 00:00:00 2001 From: yflory Date: Thu, 2 Jul 2020 15:30:03 +0200 Subject: [PATCH 4/8] Make mathjax and markmap non-blocking --- www/common/diffMarked.js | 29 +++++++++++++++++++++++------ 1 file changed, 23 insertions(+), 6 deletions(-) diff --git a/www/common/diffMarked.js b/www/common/diffMarked.js index e25be2c9d..eba8156b7 100644 --- a/www/common/diffMarked.js +++ b/www/common/diffMarked.js @@ -9,9 +9,6 @@ define([ '/common/media-tag.js', '/common/highlight/highlight.pack.js', '/customize/messages.js', - '/lib/markmap/transform.min.js', - '/lib/markmap/view.min.js', - '/bower_components/MathJax/es5/tex-svg.js', '/bower_components/diff-dom/diffDOM.js', '/bower_components/tweetnacl/nacl-fast.min.js', 'css!/common/highlight/styles/github.css' @@ -19,7 +16,6 @@ define([ MarkMapTransform, Markmap) { var DiffMd = {}; - var MathJax = window.MathJax; var DiffDOM = window.diffDOM; var renderer = new Marked.Renderer(); var restrictedRenderer = new Marked.Renderer(); @@ -27,13 +23,33 @@ define([ var Mermaid = { init: function () {} }; + var MarkMapTransform = { + transform: function () {} + }; + var Markmap = { + markmap: function () {} + }; + var Mathjax = { + tex2svg: function () {} + }; var mermaidThemeCSS = //".node rect { fill: #DDD; stroke: #AAA; } " + "rect.task, rect.task0, rect.task2 { stroke-width: 1 !important; rx: 0 !important; } " + "g.grid g.tick line { opacity: 0.25; }" + "g.today line { stroke: red; stroke-width: 1; stroke-dasharray: 3; opacity: 0.5; }"; - require(['mermaid', 'css!/code/mermaid-new.css'], function (_Mermaid) { + require([ + 'mermaid', + '/lib/markmap/transform.min.js', + '/lib/markmap/view.min.js', + '/bower_components/MathJax/es5/tex-svg.js', + 'css!/code/mermaid-new.css' + ], function (_Mermaid, _Transform, _View) { + Mathjax = window.MathJax; + + MarkMapTransform = _Transform; + Markmap = _View; + Mermaid = _Mermaid; Mermaid.initialize({ gantt: { axisFormat: '%m-%d', }, @@ -103,7 +119,8 @@ define([ } else if (language === 'markmap') { return '
    '+Util.fixHTML(code)+'
    '; } else if (language === 'mathjax') { - var svg = MathJax.tex2svg(code, {display: true}) + var svg = Mathjax.tex2svg(code, {display: true}) + if (!svg) { return ''; } return '
    '+ svg.innerHTML.replace(/xlink:href/g, "href") +'
    '; } else { return defaultCode.apply(renderer, arguments); From 81cb7d2bb3fc2f679d36aeef3d5e88ebdee49175 Mon Sep 17 00:00:00 2001 From: yflory Date: Thu, 2 Jul 2020 16:06:20 +0200 Subject: [PATCH 5/8] lint compliance --- .jshintignore | 1 + .../markmap/markmap-lib.transform.bundle.js | 5689 ----- www/code/markmap/markmap-lib.view.bundle.js | 19876 ---------------- www/common/diffMarked.js | 12 +- 4 files changed, 6 insertions(+), 25572 deletions(-) delete mode 100644 www/code/markmap/markmap-lib.transform.bundle.js delete mode 100644 www/code/markmap/markmap-lib.view.bundle.js diff --git a/.jshintignore b/.jshintignore index f118c685c..ca83cd332 100644 --- a/.jshintignore +++ b/.jshintignore @@ -15,6 +15,7 @@ www/common/onlyoffice/v2* server.js www/common/old-media-tag.js www/scratch +www/lib www/common/toolbar.js www/common/hyperscript.js diff --git a/www/code/markmap/markmap-lib.transform.bundle.js b/www/code/markmap/markmap-lib.transform.bundle.js deleted file mode 100644 index ecfb9aee2..000000000 --- a/www/code/markmap/markmap-lib.transform.bundle.js +++ /dev/null @@ -1,5689 +0,0 @@ -(function (global, factory) { - typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : - typeof define === 'function' && define.amd ? define(factory) : - (global = global || self, global.transform = factory()); -}(this, (function () { 'use strict'; - - function unwrapExports (x) { - return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x; - } - - function createCommonjsModule(fn, basedir, module) { - return module = { - path: basedir, - exports: {}, - require: function (path, base) { - return commonjsRequire(path, (base === undefined || base === null) ? module.path : base); - } - }, fn(module, module.exports), module.exports; - } - - function commonjsRequire () { - throw new Error('Dynamic requires are not currently supported by @rollup/plugin-commonjs'); - } - - var textarea; - - function decodeEntity(name) { - textarea = textarea || document.createElement('textarea'); - textarea.innerHTML = '&' + name + ';'; - return textarea.value; - } - - /** - * Utility functions - */ - - function typeOf(obj) { - return Object.prototype.toString.call(obj); - } - - function isString(obj) { - return typeOf(obj) === '[object String]'; - } - - var hasOwn = Object.prototype.hasOwnProperty; - - function has(object, key) { - return object - ? hasOwn.call(object, key) - : false; - } - - // Extend objects - // - function assign(obj /*from1, from2, from3, ...*/) { - var sources = [].slice.call(arguments, 1); - - sources.forEach(function (source) { - if (!source) { return; } - - if (typeof source !== 'object') { - throw new TypeError(source + 'must be object'); - } - - Object.keys(source).forEach(function (key) { - obj[key] = source[key]; - }); - }); - - return obj; - } - - //////////////////////////////////////////////////////////////////////////////// - - var UNESCAPE_MD_RE = /\\([\\!"#$%&'()*+,.\/:;<=>?@[\]^_`{|}~-])/g; - - function unescapeMd(str) { - if (str.indexOf('\\') < 0) { return str; } - return str.replace(UNESCAPE_MD_RE, '$1'); - } - - //////////////////////////////////////////////////////////////////////////////// - - function isValidEntityCode(c) { - /*eslint no-bitwise:0*/ - // broken sequence - if (c >= 0xD800 && c <= 0xDFFF) { return false; } - // never used - if (c >= 0xFDD0 && c <= 0xFDEF) { return false; } - if ((c & 0xFFFF) === 0xFFFF || (c & 0xFFFF) === 0xFFFE) { return false; } - // control codes - if (c >= 0x00 && c <= 0x08) { return false; } - if (c === 0x0B) { return false; } - if (c >= 0x0E && c <= 0x1F) { return false; } - if (c >= 0x7F && c <= 0x9F) { return false; } - // out of range - if (c > 0x10FFFF) { return false; } - return true; - } - - function fromCodePoint(c) { - /*eslint no-bitwise:0*/ - if (c > 0xffff) { - c -= 0x10000; - var surrogate1 = 0xd800 + (c >> 10), - surrogate2 = 0xdc00 + (c & 0x3ff); - - return String.fromCharCode(surrogate1, surrogate2); - } - return String.fromCharCode(c); - } - - var NAMED_ENTITY_RE = /&([a-z#][a-z0-9]{1,31});/gi; - var DIGITAL_ENTITY_TEST_RE = /^#((?:x[a-f0-9]{1,8}|[0-9]{1,8}))/i; - - function replaceEntityPattern(match, name) { - var code = 0; - var decoded = decodeEntity(name); - - if (name !== decoded) { - return decoded; - } else if (name.charCodeAt(0) === 0x23/* # */ && DIGITAL_ENTITY_TEST_RE.test(name)) { - code = name[1].toLowerCase() === 'x' ? - parseInt(name.slice(2), 16) - : - parseInt(name.slice(1), 10); - if (isValidEntityCode(code)) { - return fromCodePoint(code); - } - } - return match; - } - - function replaceEntities(str) { - if (str.indexOf('&') < 0) { return str; } - - return str.replace(NAMED_ENTITY_RE, replaceEntityPattern); - } - - //////////////////////////////////////////////////////////////////////////////// - - var HTML_ESCAPE_TEST_RE = /[&<>"]/; - var HTML_ESCAPE_REPLACE_RE = /[&<>"]/g; - var HTML_REPLACEMENTS = { - '&': '&', - '<': '<', - '>': '>', - '"': '"' - }; - - function replaceUnsafeChar(ch) { - return HTML_REPLACEMENTS[ch]; - } - - function escapeHtml(str) { - if (HTML_ESCAPE_TEST_RE.test(str)) { - return str.replace(HTML_ESCAPE_REPLACE_RE, replaceUnsafeChar); - } - return str; - } - - var utils = /*#__PURE__*/Object.freeze({ - isString: isString, - has: has, - assign: assign, - unescapeMd: unescapeMd, - isValidEntityCode: isValidEntityCode, - fromCodePoint: fromCodePoint, - replaceEntities: replaceEntities, - escapeHtml: escapeHtml - }); - - /** - * Renderer rules cache - */ - - var rules = {}; - - /** - * Blockquotes - */ - - rules.blockquote_open = function(/* tokens, idx, options, env */) { - return '
    \n'; - }; - - rules.blockquote_close = function(tokens, idx /*, options, env */) { - return '
    ' + getBreak(tokens, idx); - }; - - /** - * Code - */ - - rules.code = function(tokens, idx /*, options, env */) { - if (tokens[idx].block) { - return '
    ' + escapeHtml(tokens[idx].content) + '
    ' + getBreak(tokens, idx); - } - return '' + escapeHtml(tokens[idx].content) + ''; - }; - - /** - * Fenced code blocks - */ - - rules.fence = function(tokens, idx, options, env, instance) { - var token = tokens[idx]; - var langClass = ''; - var langPrefix = options.langPrefix; - var langName = '', fences, fenceName; - var highlighted; - - if (token.params) { - - // - // ```foo bar - // - // Try custom renderer "foo" first. That will simplify overwrite - // for diagrams, latex, and any other fenced block with custom look - // - - fences = token.params.split(/\s+/g); - fenceName = fences.join(' '); - - if (has(instance.rules.fence_custom, fences[0])) { - return instance.rules.fence_custom[fences[0]](tokens, idx, options, env, instance); - } - - langName = escapeHtml(replaceEntities(unescapeMd(fenceName))); - langClass = ' class="' + langPrefix + langName + '"'; - } - - if (options.highlight) { - highlighted = options.highlight.apply(options.highlight, [ token.content ].concat(fences)) - || escapeHtml(token.content); - } else { - highlighted = escapeHtml(token.content); - } - - return '
    '
-	        + highlighted
-	        + '
    ' - + getBreak(tokens, idx); - }; - - rules.fence_custom = {}; - - /** - * Headings - */ - - rules.heading_open = function(tokens, idx /*, options, env */) { - return ''; - }; - rules.heading_close = function(tokens, idx /*, options, env */) { - return '\n'; - }; - - /** - * Horizontal rules - */ - - rules.hr = function(tokens, idx, options /*, env */) { - return (options.xhtmlOut ? '
    ' : '
    ') + getBreak(tokens, idx); - }; - - /** - * Bullets - */ - - rules.bullet_list_open = function(/* tokens, idx, options, env */) { - return '
      \n'; - }; - rules.bullet_list_close = function(tokens, idx /*, options, env */) { - return '
    ' + getBreak(tokens, idx); - }; - - /** - * List items - */ - - rules.list_item_open = function(/* tokens, idx, options, env */) { - return '
  • '; - }; - rules.list_item_close = function(/* tokens, idx, options, env */) { - return '
    • \n'; - }; - - /** - * Ordered list items - */ - - rules.ordered_list_open = function(tokens, idx /*, options, env */) { - var token = tokens[idx]; - var order = token.order > 1 ? ' start="' + token.order + '"' : ''; - return '\n'; - }; - rules.ordered_list_close = function(tokens, idx /*, options, env */) { - return '' + getBreak(tokens, idx); - }; - - /** - * Paragraphs - */ - - rules.paragraph_open = function(tokens, idx /*, options, env */) { - return tokens[idx].tight ? '' : '

    '; - }; - rules.paragraph_close = function(tokens, idx /*, options, env */) { - var addBreak = !(tokens[idx].tight && idx && tokens[idx - 1].type === 'inline' && !tokens[idx - 1].content); - return (tokens[idx].tight ? '' : '

    ') + (addBreak ? getBreak(tokens, idx) : ''); - }; - - /** - * Links - */ - - rules.link_open = function(tokens, idx, options /* env */) { - var title = tokens[idx].title ? (' title="' + escapeHtml(replaceEntities(tokens[idx].title)) + '"') : ''; - var target = options.linkTarget ? (' target="' + options.linkTarget + '"') : ''; - return ''; - }; - rules.link_close = function(/* tokens, idx, options, env */) { - return ''; - }; - - /** - * Images - */ - - rules.image = function(tokens, idx, options /*, env */) { - var src = ' src="' + escapeHtml(tokens[idx].src) + '"'; - var title = tokens[idx].title ? (' title="' + escapeHtml(replaceEntities(tokens[idx].title)) + '"') : ''; - var alt = ' alt="' + (tokens[idx].alt ? escapeHtml(replaceEntities(unescapeMd(tokens[idx].alt))) : '') + '"'; - var suffix = options.xhtmlOut ? ' /' : ''; - return ''; - }; - - /** - * Tables - */ - - rules.table_open = function(/* tokens, idx, options, env */) { - return '\n'; - }; - rules.table_close = function(/* tokens, idx, options, env */) { - return '
    \n'; - }; - rules.thead_open = function(/* tokens, idx, options, env */) { - return '\n'; - }; - rules.thead_close = function(/* tokens, idx, options, env */) { - return '\n'; - }; - rules.tbody_open = function(/* tokens, idx, options, env */) { - return '\n'; - }; - rules.tbody_close = function(/* tokens, idx, options, env */) { - return '\n'; - }; - rules.tr_open = function(/* tokens, idx, options, env */) { - return ''; - }; - rules.tr_close = function(/* tokens, idx, options, env */) { - return '\n'; - }; - rules.th_open = function(tokens, idx /*, options, env */) { - var token = tokens[idx]; - return ''; - }; - rules.th_close = function(/* tokens, idx, options, env */) { - return ''; - }; - rules.td_open = function(tokens, idx /*, options, env */) { - var token = tokens[idx]; - return ''; - }; - rules.td_close = function(/* tokens, idx, options, env */) { - return ''; - }; - - /** - * Bold - */ - - rules.strong_open = function(/* tokens, idx, options, env */) { - return ''; - }; - rules.strong_close = function(/* tokens, idx, options, env */) { - return ''; - }; - - /** - * Italicize - */ - - rules.em_open = function(/* tokens, idx, options, env */) { - return ''; - }; - rules.em_close = function(/* tokens, idx, options, env */) { - return ''; - }; - - /** - * Strikethrough - */ - - rules.del_open = function(/* tokens, idx, options, env */) { - return ''; - }; - rules.del_close = function(/* tokens, idx, options, env */) { - return ''; - }; - - /** - * Insert - */ - - rules.ins_open = function(/* tokens, idx, options, env */) { - return ''; - }; - rules.ins_close = function(/* tokens, idx, options, env */) { - return ''; - }; - - /** - * Highlight - */ - - rules.mark_open = function(/* tokens, idx, options, env */) { - return ''; - }; - rules.mark_close = function(/* tokens, idx, options, env */) { - return ''; - }; - - /** - * Super- and sub-script - */ - - rules.sub = function(tokens, idx /*, options, env */) { - return '' + escapeHtml(tokens[idx].content) + ''; - }; - rules.sup = function(tokens, idx /*, options, env */) { - return '' + escapeHtml(tokens[idx].content) + ''; - }; - - /** - * Breaks - */ - - rules.hardbreak = function(tokens, idx, options /*, env */) { - return options.xhtmlOut ? '
    \n' : '
    \n'; - }; - rules.softbreak = function(tokens, idx, options /*, env */) { - return options.breaks ? (options.xhtmlOut ? '
    \n' : '
    \n') : '\n'; - }; - - /** - * Text - */ - - rules.text = function(tokens, idx /*, options, env */) { - return escapeHtml(tokens[idx].content); - }; - - /** - * Content - */ - - rules.htmlblock = function(tokens, idx /*, options, env */) { - return tokens[idx].content; - }; - rules.htmltag = function(tokens, idx /*, options, env */) { - return tokens[idx].content; - }; - - /** - * Abbreviations, initialism - */ - - rules.abbr_open = function(tokens, idx /*, options, env */) { - return ''; - }; - rules.abbr_close = function(/* tokens, idx, options, env */) { - return ''; - }; - - /** - * Footnotes - */ - - rules.footnote_ref = function(tokens, idx) { - var n = Number(tokens[idx].id + 1).toString(); - var id = 'fnref' + n; - if (tokens[idx].subId > 0) { - id += ':' + tokens[idx].subId; - } - return '[' + n + ']'; - }; - rules.footnote_block_open = function(tokens, idx, options) { - var hr = options.xhtmlOut - ? '
    \n' - : '
    \n'; - return hr + '
    \n
      \n'; - }; - rules.footnote_block_close = function() { - return '
    \n
    \n'; - }; - rules.footnote_open = function(tokens, idx) { - var id = Number(tokens[idx].id + 1).toString(); - return '
  • '; - }; - rules.footnote_close = function() { - return '
    • \n'; - }; - rules.footnote_anchor = function(tokens, idx) { - var n = Number(tokens[idx].id + 1).toString(); - var id = 'fnref' + n; - if (tokens[idx].subId > 0) { - id += ':' + tokens[idx].subId; - } - return ' ↩'; - }; - - /** - * Definition lists - */ - - rules.dl_open = function() { - return '
    \n'; - }; - rules.dt_open = function() { - return '
    '; - }; - rules.dd_open = function() { - return '
    '; - }; - rules.dl_close = function() { - return '
    \n'; - }; - rules.dt_close = function() { - return '\n'; - }; - rules.dd_close = function() { - return '\n'; - }; - - /** - * Helper functions - */ - - function nextToken(tokens, idx) { - if (++idx >= tokens.length - 2) { - return idx; - } - if ((tokens[idx].type === 'paragraph_open' && tokens[idx].tight) && - (tokens[idx + 1].type === 'inline' && tokens[idx + 1].content.length === 0) && - (tokens[idx + 2].type === 'paragraph_close' && tokens[idx + 2].tight)) { - return nextToken(tokens, idx + 2); - } - return idx; - } - - /** - * Check to see if `\n` is needed before the next token. - * - * @param {Array} `tokens` - * @param {Number} `idx` - * @return {String} Empty string or newline - * @api private - */ - - var getBreak = rules.getBreak = function getBreak(tokens, idx) { - idx = nextToken(tokens, idx); - if (idx < tokens.length && tokens[idx].type === 'list_item_close') { - return ''; - } - return '\n'; - }; - - /** - * Renderer class. Renders HTML and exposes `rules` to allow - * local modifications. - */ - - function Renderer() { - this.rules = assign({}, rules); - - // exported helper, for custom rules only - this.getBreak = rules.getBreak; - } - - /** - * Render a string of inline HTML with the given `tokens` and - * `options`. - * - * @param {Array} `tokens` - * @param {Object} `options` - * @param {Object} `env` - * @return {String} - * @api public - */ - - Renderer.prototype.renderInline = function (tokens, options, env) { - var _rules = this.rules; - var len = tokens.length, i = 0; - var result = ''; - - while (len--) { - result += _rules[tokens[i].type](tokens, i++, options, env, this); - } - - return result; - }; - - /** - * Render a string of HTML with the given `tokens` and - * `options`. - * - * @param {Array} `tokens` - * @param {Object} `options` - * @param {Object} `env` - * @return {String} - * @api public - */ - - Renderer.prototype.render = function (tokens, options, env) { - var _rules = this.rules; - var len = tokens.length, i = -1; - var result = ''; - - while (++i < len) { - if (tokens[i].type === 'inline') { - result += this.renderInline(tokens[i].children, options, env); - } else { - result += _rules[tokens[i].type](tokens, i, options, env, this); - } - } - return result; - }; - - /** - * Ruler is a helper class for building responsibility chains from - * parse rules. It allows: - * - * - easy stack rules chains - * - getting main chain and named chains content (as arrays of functions) - * - * Helper methods, should not be used directly. - * @api private - */ - - function Ruler() { - // List of added rules. Each element is: - // - // { name: XXX, - // enabled: Boolean, - // fn: Function(), - // alt: [ name2, name3 ] } - // - this.__rules__ = []; - - // Cached rule chains. - // - // First level - chain name, '' for default. - // Second level - digital anchor for fast filtering by charcodes. - // - this.__cache__ = null; - } - - /** - * Find the index of a rule by `name`. - * - * @param {String} `name` - * @return {Number} Index of the given `name` - * @api private - */ - - Ruler.prototype.__find__ = function (name) { - var len = this.__rules__.length; - var i = -1; - - while (len--) { - if (this.__rules__[++i].name === name) { - return i; - } - } - return -1; - }; - - /** - * Build the rules lookup cache - * - * @api private - */ - - Ruler.prototype.__compile__ = function () { - var self = this; - var chains = [ '' ]; - - // collect unique names - self.__rules__.forEach(function (rule) { - if (!rule.enabled) { - return; - } - - rule.alt.forEach(function (altName) { - if (chains.indexOf(altName) < 0) { - chains.push(altName); - } - }); - }); - - self.__cache__ = {}; - - chains.forEach(function (chain) { - self.__cache__[chain] = []; - self.__rules__.forEach(function (rule) { - if (!rule.enabled) { - return; - } - - if (chain && rule.alt.indexOf(chain) < 0) { - return; - } - self.__cache__[chain].push(rule.fn); - }); - }); - }; - - /** - * Ruler public methods - * ------------------------------------------------ - */ - - /** - * Replace rule function - * - * @param {String} `name` Rule name - * @param {Function `fn` - * @param {Object} `options` - * @api private - */ - - Ruler.prototype.at = function (name, fn, options) { - var idx = this.__find__(name); - var opt = options || {}; - - if (idx === -1) { - throw new Error('Parser rule not found: ' + name); - } - - this.__rules__[idx].fn = fn; - this.__rules__[idx].alt = opt.alt || []; - this.__cache__ = null; - }; - - /** - * Add a rule to the chain before given the `ruleName`. - * - * @param {String} `beforeName` - * @param {String} `ruleName` - * @param {Function} `fn` - * @param {Object} `options` - * @api private - */ - - Ruler.prototype.before = function (beforeName, ruleName, fn, options) { - var idx = this.__find__(beforeName); - var opt = options || {}; - - if (idx === -1) { - throw new Error('Parser rule not found: ' + beforeName); - } - - this.__rules__.splice(idx, 0, { - name: ruleName, - enabled: true, - fn: fn, - alt: opt.alt || [] - }); - - this.__cache__ = null; - }; - - /** - * Add a rule to the chain after the given `ruleName`. - * - * @param {String} `afterName` - * @param {String} `ruleName` - * @param {Function} `fn` - * @param {Object} `options` - * @api private - */ - - Ruler.prototype.after = function (afterName, ruleName, fn, options) { - var idx = this.__find__(afterName); - var opt = options || {}; - - if (idx === -1) { - throw new Error('Parser rule not found: ' + afterName); - } - - this.__rules__.splice(idx + 1, 0, { - name: ruleName, - enabled: true, - fn: fn, - alt: opt.alt || [] - }); - - this.__cache__ = null; - }; - - /** - * Add a rule to the end of chain. - * - * @param {String} `ruleName` - * @param {Function} `fn` - * @param {Object} `options` - * @return {String} - */ - - Ruler.prototype.push = function (ruleName, fn, options) { - var opt = options || {}; - - this.__rules__.push({ - name: ruleName, - enabled: true, - fn: fn, - alt: opt.alt || [] - }); - - this.__cache__ = null; - }; - - /** - * Enable a rule or list of rules. - * - * @param {String|Array} `list` Name or array of rule names to enable - * @param {Boolean} `strict` If `true`, all non listed rules will be disabled. - * @api private - */ - - Ruler.prototype.enable = function (list, strict) { - list = !Array.isArray(list) - ? [ list ] - : list; - - // In strict mode disable all existing rules first - if (strict) { - this.__rules__.forEach(function (rule) { - rule.enabled = false; - }); - } - - // Search by name and enable - list.forEach(function (name) { - var idx = this.__find__(name); - if (idx < 0) { - throw new Error('Rules manager: invalid rule name ' + name); - } - this.__rules__[idx].enabled = true; - }, this); - - this.__cache__ = null; - }; - - - /** - * Disable a rule or list of rules. - * - * @param {String|Array} `list` Name or array of rule names to disable - * @api private - */ - - Ruler.prototype.disable = function (list) { - list = !Array.isArray(list) - ? [ list ] - : list; - - // Search by name and disable - list.forEach(function (name) { - var idx = this.__find__(name); - if (idx < 0) { - throw new Error('Rules manager: invalid rule name ' + name); - } - this.__rules__[idx].enabled = false; - }, this); - - this.__cache__ = null; - }; - - /** - * Get a rules list as an array of functions. - * - * @param {String} `chainName` - * @return {Object} - * @api private - */ - - Ruler.prototype.getRules = function (chainName) { - if (this.__cache__ === null) { - this.__compile__(); - } - return this.__cache__[chainName] || []; - }; - - function block(state) { - - if (state.inlineMode) { - state.tokens.push({ - type: 'inline', - content: state.src.replace(/\n/g, ' ').trim(), - level: 0, - lines: [ 0, 1 ], - children: [] - }); - - } else { - state.block.parse(state.src, state.options, state.env, state.tokens); - } - } - - // Inline parser state - - function StateInline(src, parserInline, options, env, outTokens) { - this.src = src; - this.env = env; - this.options = options; - this.parser = parserInline; - this.tokens = outTokens; - this.pos = 0; - this.posMax = this.src.length; - this.level = 0; - this.pending = ''; - this.pendingLevel = 0; - - this.cache = []; // Stores { start: end } pairs. Useful for backtrack - // optimization of pairs parse (emphasis, strikes). - - // Link parser state vars - - this.isInLabel = false; // Set true when seek link label - we should disable - // "paired" rules (emphasis, strikes) to not skip - // tailing `]` - - this.linkLevel = 0; // Increment for each nesting link. Used to prevent - // nesting in definitions - - this.linkContent = ''; // Temporary storage for link url - - this.labelUnmatchedScopes = 0; // Track unpaired `[` for link labels - // (backtrack optimization) - } - - // Flush pending text - // - StateInline.prototype.pushPending = function () { - this.tokens.push({ - type: 'text', - content: this.pending, - level: this.pendingLevel - }); - this.pending = ''; - }; - - // Push new token to "stream". - // If pending text exists - flush it as text token - // - StateInline.prototype.push = function (token) { - if (this.pending) { - this.pushPending(); - } - - this.tokens.push(token); - this.pendingLevel = this.level; - }; - - // Store value to cache. - // !!! Implementation has parser-specific optimizations - // !!! keys MUST be integer, >= 0; values MUST be integer, > 0 - // - StateInline.prototype.cacheSet = function (key, val) { - for (var i = this.cache.length; i <= key; i++) { - this.cache.push(0); - } - - this.cache[key] = val; - }; - - // Get cache value - // - StateInline.prototype.cacheGet = function (key) { - return key < this.cache.length ? this.cache[key] : 0; - }; - - /** - * Parse link labels - * - * This function assumes that first character (`[`) already matches; - * returns the end of the label. - * - * @param {Object} state - * @param {Number} start - * @api private - */ - - function parseLinkLabel(state, start) { - var level, found, marker, - labelEnd = -1, - max = state.posMax, - oldPos = state.pos, - oldFlag = state.isInLabel; - - if (state.isInLabel) { return -1; } - - if (state.labelUnmatchedScopes) { - state.labelUnmatchedScopes--; - return -1; - } - - state.pos = start + 1; - state.isInLabel = true; - level = 1; - - while (state.pos < max) { - marker = state.src.charCodeAt(state.pos); - if (marker === 0x5B /* [ */) { - level++; - } else if (marker === 0x5D /* ] */) { - level--; - if (level === 0) { - found = true; - break; - } - } - - state.parser.skipToken(state); - } - - if (found) { - labelEnd = state.pos; - state.labelUnmatchedScopes = 0; - } else { - state.labelUnmatchedScopes = level - 1; - } - - // restore old state - state.pos = oldPos; - state.isInLabel = oldFlag; - - return labelEnd; - } - - // Parse abbreviation definitions, i.e. `*[abbr]: description` - - - function parseAbbr(str, parserInline, options, env) { - var state, labelEnd, pos, max, label, title; - - if (str.charCodeAt(0) !== 0x2A/* * */) { return -1; } - if (str.charCodeAt(1) !== 0x5B/* [ */) { return -1; } - - if (str.indexOf(']:') === -1) { return -1; } - - state = new StateInline(str, parserInline, options, env, []); - labelEnd = parseLinkLabel(state, 1); - - if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 0x3A/* : */) { return -1; } - - max = state.posMax; - - // abbr title is always one line, so looking for ending "\n" here - for (pos = labelEnd + 2; pos < max; pos++) { - if (state.src.charCodeAt(pos) === 0x0A) { break; } - } - - label = str.slice(2, labelEnd); - title = str.slice(labelEnd + 2, pos).trim(); - if (title.length === 0) { return -1; } - if (!env.abbreviations) { env.abbreviations = {}; } - // prepend ':' to avoid conflict with Object.prototype members - if (typeof env.abbreviations[':' + label] === 'undefined') { - env.abbreviations[':' + label] = title; - } - - return pos; - } - - function abbr(state) { - var tokens = state.tokens, i, l, content, pos; - - if (state.inlineMode) { - return; - } - - // Parse inlines - for (i = 1, l = tokens.length - 1; i < l; i++) { - if (tokens[i - 1].type === 'paragraph_open' && - tokens[i].type === 'inline' && - tokens[i + 1].type === 'paragraph_close') { - - content = tokens[i].content; - while (content.length) { - pos = parseAbbr(content, state.inline, state.options, state.env); - if (pos < 0) { break; } - content = content.slice(pos).trim(); - } - - tokens[i].content = content; - if (!content.length) { - tokens[i - 1].tight = true; - tokens[i + 1].tight = true; - } - } - } - } - - function normalizeLink(url) { - var normalized = replaceEntities(url); - // We shouldn't care about the result of malformed URIs, - // and should not throw an exception. - try { - normalized = decodeURI(normalized); - } catch (err) {} - return encodeURI(normalized); - } - - /** - * Parse link destination - * - * - on success it returns a string and updates state.pos; - * - on failure it returns null - * - * @param {Object} state - * @param {Number} pos - * @api private - */ - - function parseLinkDestination(state, pos) { - var code, level, link, - start = pos, - max = state.posMax; - - if (state.src.charCodeAt(pos) === 0x3C /* < */) { - pos++; - while (pos < max) { - code = state.src.charCodeAt(pos); - if (code === 0x0A /* \n */) { return false; } - if (code === 0x3E /* > */) { - link = normalizeLink(unescapeMd(state.src.slice(start + 1, pos))); - if (!state.parser.validateLink(link)) { return false; } - state.pos = pos + 1; - state.linkContent = link; - return true; - } - if (code === 0x5C /* \ */ && pos + 1 < max) { - pos += 2; - continue; - } - - pos++; - } - - // no closing '>' - return false; - } - - // this should be ... } else { ... branch - - level = 0; - while (pos < max) { - code = state.src.charCodeAt(pos); - - if (code === 0x20) { break; } - - // ascii control chars - if (code < 0x20 || code === 0x7F) { break; } - - if (code === 0x5C /* \ */ && pos + 1 < max) { - pos += 2; - continue; - } - - if (code === 0x28 /* ( */) { - level++; - if (level > 1) { break; } - } - - if (code === 0x29 /* ) */) { - level--; - if (level < 0) { break; } - } - - pos++; - } - - if (start === pos) { return false; } - - link = unescapeMd(state.src.slice(start, pos)); - if (!state.parser.validateLink(link)) { return false; } - - state.linkContent = link; - state.pos = pos; - return true; - } - - /** - * Parse link title - * - * - on success it returns a string and updates state.pos; - * - on failure it returns null - * - * @param {Object} state - * @param {Number} pos - * @api private - */ - - function parseLinkTitle(state, pos) { - var code, - start = pos, - max = state.posMax, - marker = state.src.charCodeAt(pos); - - if (marker !== 0x22 /* " */ && marker !== 0x27 /* ' */ && marker !== 0x28 /* ( */) { return false; } - - pos++; - - // if opening marker is "(", switch it to closing marker ")" - if (marker === 0x28) { marker = 0x29; } - - while (pos < max) { - code = state.src.charCodeAt(pos); - if (code === marker) { - state.pos = pos + 1; - state.linkContent = unescapeMd(state.src.slice(start + 1, pos)); - return true; - } - if (code === 0x5C /* \ */ && pos + 1 < max) { - pos += 2; - continue; - } - - pos++; - } - - return false; - } - - function normalizeReference(str) { - // use .toUpperCase() instead of .toLowerCase() - // here to avoid a conflict with Object.prototype - // members (most notably, `__proto__`) - return str.trim().replace(/\s+/g, ' ').toUpperCase(); - } - - function parseReference(str, parser, options, env) { - var state, labelEnd, pos, max, code, start, href, title, label; - - if (str.charCodeAt(0) !== 0x5B/* [ */) { return -1; } - - if (str.indexOf(']:') === -1) { return -1; } - - state = new StateInline(str, parser, options, env, []); - labelEnd = parseLinkLabel(state, 0); - - if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 0x3A/* : */) { return -1; } - - max = state.posMax; - - // [label]: destination 'title' - // ^^^ skip optional whitespace here - for (pos = labelEnd + 2; pos < max; pos++) { - code = state.src.charCodeAt(pos); - if (code !== 0x20 && code !== 0x0A) { break; } - } - - // [label]: destination 'title' - // ^^^^^^^^^^^ parse this - if (!parseLinkDestination(state, pos)) { return -1; } - href = state.linkContent; - pos = state.pos; - - // [label]: destination 'title' - // ^^^ skipping those spaces - start = pos; - for (pos = pos + 1; pos < max; pos++) { - code = state.src.charCodeAt(pos); - if (code !== 0x20 && code !== 0x0A) { break; } - } - - // [label]: destination 'title' - // ^^^^^^^ parse this - if (pos < max && start !== pos && parseLinkTitle(state, pos)) { - title = state.linkContent; - pos = state.pos; - } else { - title = ''; - pos = start; - } - - // ensure that the end of the line is empty - while (pos < max && state.src.charCodeAt(pos) === 0x20/* space */) { pos++; } - if (pos < max && state.src.charCodeAt(pos) !== 0x0A) { return -1; } - - label = normalizeReference(str.slice(1, labelEnd)); - if (typeof env.references[label] === 'undefined') { - env.references[label] = { title: title, href: href }; - } - - return pos; - } - - - function references(state) { - var tokens = state.tokens, i, l, content, pos; - - state.env.references = state.env.references || {}; - - if (state.inlineMode) { - return; - } - - // Scan definitions in paragraph inlines - for (i = 1, l = tokens.length - 1; i < l; i++) { - if (tokens[i].type === 'inline' && - tokens[i - 1].type === 'paragraph_open' && - tokens[i + 1].type === 'paragraph_close') { - - content = tokens[i].content; - while (content.length) { - pos = parseReference(content, state.inline, state.options, state.env); - if (pos < 0) { break; } - content = content.slice(pos).trim(); - } - - tokens[i].content = content; - if (!content.length) { - tokens[i - 1].tight = true; - tokens[i + 1].tight = true; - } - } - } - } - - function inline(state) { - var tokens = state.tokens, tok, i, l; - - // Parse inlines - for (i = 0, l = tokens.length; i < l; i++) { - tok = tokens[i]; - if (tok.type === 'inline') { - state.inline.parse(tok.content, state.options, state.env, tok.children); - } - } - } - - function footnote_block(state) { - var i, l, j, t, lastParagraph, list, tokens, current, currentLabel, - level = 0, - insideRef = false, - refTokens = {}; - - if (!state.env.footnotes) { return; } - - state.tokens = state.tokens.filter(function(tok) { - if (tok.type === 'footnote_reference_open') { - insideRef = true; - current = []; - currentLabel = tok.label; - return false; - } - if (tok.type === 'footnote_reference_close') { - insideRef = false; - // prepend ':' to avoid conflict with Object.prototype members - refTokens[':' + currentLabel] = current; - return false; - } - if (insideRef) { current.push(tok); } - return !insideRef; - }); - - if (!state.env.footnotes.list) { return; } - list = state.env.footnotes.list; - - state.tokens.push({ - type: 'footnote_block_open', - level: level++ - }); - for (i = 0, l = list.length; i < l; i++) { - state.tokens.push({ - type: 'footnote_open', - id: i, - level: level++ - }); - - if (list[i].tokens) { - tokens = []; - tokens.push({ - type: 'paragraph_open', - tight: false, - level: level++ - }); - tokens.push({ - type: 'inline', - content: '', - level: level, - children: list[i].tokens - }); - tokens.push({ - type: 'paragraph_close', - tight: false, - level: --level - }); - } else if (list[i].label) { - tokens = refTokens[':' + list[i].label]; - } - - state.tokens = state.tokens.concat(tokens); - if (state.tokens[state.tokens.length - 1].type === 'paragraph_close') { - lastParagraph = state.tokens.pop(); - } else { - lastParagraph = null; - } - - t = list[i].count > 0 ? list[i].count : 1; - for (j = 0; j < t; j++) { - state.tokens.push({ - type: 'footnote_anchor', - id: i, - subId: j, - level: level - }); - } - - if (lastParagraph) { - state.tokens.push(lastParagraph); - } - - state.tokens.push({ - type: 'footnote_close', - level: --level - }); - } - state.tokens.push({ - type: 'footnote_block_close', - level: --level - }); - } - - // Enclose abbreviations in tags - // - - var PUNCT_CHARS = ' \n()[]\'".,!?-'; - - - // from Google closure library - // http://closure-library.googlecode.com/git-history/docs/local_closure_goog_string_string.js.source.html#line1021 - function regEscape(s) { - return s.replace(/([-()\[\]{}+?*.$\^|,:#= 0; i--) { - token = tokens[i]; - if (token.type !== 'text') { continue; } - - pos = 0; - text = token.content; - reg.lastIndex = 0; - level = token.level; - nodes = []; - - while ((m = reg.exec(text))) { - if (reg.lastIndex > pos) { - nodes.push({ - type: 'text', - content: text.slice(pos, m.index + m[1].length), - level: level - }); - } - - nodes.push({ - type: 'abbr_open', - title: state.env.abbreviations[':' + m[2]], - level: level++ - }); - nodes.push({ - type: 'text', - content: m[2], - level: level - }); - nodes.push({ - type: 'abbr_close', - level: --level - }); - pos = reg.lastIndex - m[3].length; - } - - if (!nodes.length) { continue; } - - if (pos < text.length) { - nodes.push({ - type: 'text', - content: text.slice(pos), - level: level - }); - } - - // replace current node - blockTokens[j].children = tokens = [].concat(tokens.slice(0, i), nodes, tokens.slice(i + 1)); - } - } - } - - // Simple typographical replacements - // - // TODO: - // - fractionals 1/2, 1/4, 3/4 -> ½, ¼, ¾ - // - miltiplication 2 x 4 -> 2 × 4 - - var RARE_RE = /\+-|\.\.|\?\?\?\?|!!!!|,,|--/; - - var SCOPED_ABBR_RE = /\((c|tm|r|p)\)/ig; - var SCOPED_ABBR = { - 'c': '©', - 'r': '®', - 'p': '§', - 'tm': '™' - }; - - function replaceScopedAbbr(str) { - if (str.indexOf('(') < 0) { return str; } - - return str.replace(SCOPED_ABBR_RE, function(match, name) { - return SCOPED_ABBR[name.toLowerCase()]; - }); - } - - - function replace(state) { - var i, token, text, inlineTokens, blkIdx; - - if (!state.options.typographer) { return; } - - for (blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) { - - if (state.tokens[blkIdx].type !== 'inline') { continue; } - - inlineTokens = state.tokens[blkIdx].children; - - for (i = inlineTokens.length - 1; i >= 0; i--) { - token = inlineTokens[i]; - if (token.type === 'text') { - text = token.content; - - text = replaceScopedAbbr(text); - - if (RARE_RE.test(text)) { - text = text - .replace(/\+-/g, '±') - // .., ..., ....... -> … - // but ?..... & !..... -> ?.. & !.. - .replace(/\.{2,}/g, '…').replace(/([?!])…/g, '$1..') - .replace(/([?!]){4,}/g, '$1$1$1').replace(/,{2,}/g, ',') - // em-dash - .replace(/(^|[^-])---([^-]|$)/mg, '$1\u2014$2') - // en-dash - .replace(/(^|\s)--(\s|$)/mg, '$1\u2013$2') - .replace(/(^|[^-\s])--([^-\s]|$)/mg, '$1\u2013$2'); - } - - token.content = text; - } - } - } - } - - // Convert straight quotation marks to typographic ones - // - - var QUOTE_TEST_RE = /['"]/; - var QUOTE_RE = /['"]/g; - var PUNCT_RE = /[-\s()\[\]]/; - var APOSTROPHE = '’'; - - // This function returns true if the character at `pos` - // could be inside a word. - function isLetter(str, pos) { - if (pos < 0 || pos >= str.length) { return false; } - return !PUNCT_RE.test(str[pos]); - } - - - function replaceAt(str, index, ch) { - return str.substr(0, index) + ch + str.substr(index + 1); - } - - - function smartquotes(state) { - /*eslint max-depth:0*/ - var i, token, text, t, pos, max, thisLevel, lastSpace, nextSpace, item, - canOpen, canClose, j, isSingle, blkIdx, tokens, - stack; - - if (!state.options.typographer) { return; } - - stack = []; - - for (blkIdx = state.tokens.length - 1; blkIdx >= 0; blkIdx--) { - - if (state.tokens[blkIdx].type !== 'inline') { continue; } - - tokens = state.tokens[blkIdx].children; - stack.length = 0; - - for (i = 0; i < tokens.length; i++) { - token = tokens[i]; - - if (token.type !== 'text' || QUOTE_TEST_RE.test(token.text)) { continue; } - - thisLevel = tokens[i].level; - - for (j = stack.length - 1; j >= 0; j--) { - if (stack[j].level <= thisLevel) { break; } - } - stack.length = j + 1; - - text = token.content; - pos = 0; - max = text.length; - - /*eslint no-labels:0,block-scoped-var:0*/ - OUTER: - while (pos < max) { - QUOTE_RE.lastIndex = pos; - t = QUOTE_RE.exec(text); - if (!t) { break; } - - lastSpace = !isLetter(text, t.index - 1); - pos = t.index + 1; - isSingle = (t[0] === "'"); - nextSpace = !isLetter(text, pos); - - if (!nextSpace && !lastSpace) { - // middle of word - if (isSingle) { - token.content = replaceAt(token.content, t.index, APOSTROPHE); - } - continue; - } - - canOpen = !nextSpace; - canClose = !lastSpace; - - if (canClose) { - // this could be a closing quote, rewind the stack to get a match - for (j = stack.length - 1; j >= 0; j--) { - item = stack[j]; - if (stack[j].level < thisLevel) { break; } - if (item.single === isSingle && stack[j].level === thisLevel) { - item = stack[j]; - if (isSingle) { - tokens[item.token].content = replaceAt(tokens[item.token].content, item.pos, state.options.quotes[2]); - token.content = replaceAt(token.content, t.index, state.options.quotes[3]); - } else { - tokens[item.token].content = replaceAt(tokens[item.token].content, item.pos, state.options.quotes[0]); - token.content = replaceAt(token.content, t.index, state.options.quotes[1]); - } - stack.length = j; - continue OUTER; - } - } - } - - if (canOpen) { - stack.push({ - token: i, - pos: t.index, - single: isSingle, - level: thisLevel - }); - } else if (canClose && isSingle) { - token.content = replaceAt(token.content, t.index, APOSTROPHE); - } - } - } - } - } - - /** - * Core parser `rules` - */ - - var _rules = [ - [ 'block', block ], - [ 'abbr', abbr ], - [ 'references', references ], - [ 'inline', inline ], - [ 'footnote_tail', footnote_block ], - [ 'abbr2', abbr2 ], - [ 'replacements', replace ], - [ 'smartquotes', smartquotes ], - ]; - - /** - * Class for top level (`core`) parser rules - * - * @api private - */ - - function Core() { - this.options = {}; - this.ruler = new Ruler(); - for (var i = 0; i < _rules.length; i++) { - this.ruler.push(_rules[i][0], _rules[i][1]); - } - } - - /** - * Process rules with the given `state` - * - * @param {Object} `state` - * @api private - */ - - Core.prototype.process = function (state) { - var i, l, rules; - rules = this.ruler.getRules(''); - for (i = 0, l = rules.length; i < l; i++) { - rules[i](state); - } - }; - - // Parser state class - - function StateBlock(src, parser, options, env, tokens) { - var ch, s, start, pos, len, indent, indent_found; - - this.src = src; - - // Shortcuts to simplify nested calls - this.parser = parser; - - this.options = options; - - this.env = env; - - // - // Internal state vartiables - // - - this.tokens = tokens; - - this.bMarks = []; // line begin offsets for fast jumps - this.eMarks = []; // line end offsets for fast jumps - this.tShift = []; // indent for each line - - // block parser variables - this.blkIndent = 0; // required block content indent - // (for example, if we are in list) - this.line = 0; // line index in src - this.lineMax = 0; // lines count - this.tight = false; // loose/tight mode for lists - this.parentType = 'root'; // if `list`, block parser stops on two newlines - this.ddIndent = -1; // indent of the current dd block (-1 if there isn't any) - - this.level = 0; - - // renderer - this.result = ''; - - // Create caches - // Generate markers. - s = this.src; - indent = 0; - indent_found = false; - - for (start = pos = indent = 0, len = s.length; pos < len; pos++) { - ch = s.charCodeAt(pos); - - if (!indent_found) { - if (ch === 0x20/* space */) { - indent++; - continue; - } else { - indent_found = true; - } - } - - if (ch === 0x0A || pos === len - 1) { - if (ch !== 0x0A) { pos++; } - this.bMarks.push(start); - this.eMarks.push(pos); - this.tShift.push(indent); - - indent_found = false; - indent = 0; - start = pos + 1; - } - } - - // Push fake entry to simplify cache bounds checks - this.bMarks.push(s.length); - this.eMarks.push(s.length); - this.tShift.push(0); - - this.lineMax = this.bMarks.length - 1; // don't count last fake line - } - - StateBlock.prototype.isEmpty = function isEmpty(line) { - return this.bMarks[line] + this.tShift[line] >= this.eMarks[line]; - }; - - StateBlock.prototype.skipEmptyLines = function skipEmptyLines(from) { - for (var max = this.lineMax; from < max; from++) { - if (this.bMarks[from] + this.tShift[from] < this.eMarks[from]) { - break; - } - } - return from; - }; - - // Skip spaces from given position. - StateBlock.prototype.skipSpaces = function skipSpaces(pos) { - for (var max = this.src.length; pos < max; pos++) { - if (this.src.charCodeAt(pos) !== 0x20/* space */) { break; } - } - return pos; - }; - - // Skip char codes from given position - StateBlock.prototype.skipChars = function skipChars(pos, code) { - for (var max = this.src.length; pos < max; pos++) { - if (this.src.charCodeAt(pos) !== code) { break; } - } - return pos; - }; - - // Skip char codes reverse from given position - 1 - StateBlock.prototype.skipCharsBack = function skipCharsBack(pos, code, min) { - if (pos <= min) { return pos; } - - while (pos > min) { - if (code !== this.src.charCodeAt(--pos)) { return pos + 1; } - } - return pos; - }; - - // cut lines range from source. - StateBlock.prototype.getLines = function getLines(begin, end, indent, keepLastLF) { - var i, first, last, queue, shift, - line = begin; - - if (begin >= end) { - return ''; - } - - // Opt: don't use push queue for single line; - if (line + 1 === end) { - first = this.bMarks[line] + Math.min(this.tShift[line], indent); - last = keepLastLF ? this.eMarks[line] + 1 : this.eMarks[line]; - return this.src.slice(first, last); - } - - queue = new Array(end - begin); - - for (i = 0; line < end; line++, i++) { - shift = this.tShift[line]; - if (shift > indent) { shift = indent; } - if (shift < 0) { shift = 0; } - - first = this.bMarks[line] + shift; - - if (line + 1 < end || keepLastLF) { - // No need for bounds check because we have fake entry on tail. - last = this.eMarks[line] + 1; - } else { - last = this.eMarks[line]; - } - - queue[i] = this.src.slice(first, last); - } - - return queue.join(''); - }; - - // Code block (4 spaces padded) - - function code(state, startLine, endLine/*, silent*/) { - var nextLine, last; - - if (state.tShift[startLine] - state.blkIndent < 4) { return false; } - - last = nextLine = startLine + 1; - - while (nextLine < endLine) { - if (state.isEmpty(nextLine)) { - nextLine++; - continue; - } - if (state.tShift[nextLine] - state.blkIndent >= 4) { - nextLine++; - last = nextLine; - continue; - } - break; - } - - state.line = nextLine; - state.tokens.push({ - type: 'code', - content: state.getLines(startLine, last, 4 + state.blkIndent, true), - block: true, - lines: [ startLine, state.line ], - level: state.level - }); - - return true; - } - - // fences (``` lang, ~~~ lang) - - function fences(state, startLine, endLine, silent) { - var marker, len, params, nextLine, mem, - haveEndMarker = false, - pos = state.bMarks[startLine] + state.tShift[startLine], - max = state.eMarks[startLine]; - - if (pos + 3 > max) { return false; } - - marker = state.src.charCodeAt(pos); - - if (marker !== 0x7E/* ~ */ && marker !== 0x60 /* ` */) { - return false; - } - - // scan marker length - mem = pos; - pos = state.skipChars(pos, marker); - - len = pos - mem; - - if (len < 3) { return false; } - - params = state.src.slice(pos, max).trim(); - - if (params.indexOf('`') >= 0) { return false; } - - // Since start is found, we can report success here in validation mode - if (silent) { return true; } - - // search end of block - nextLine = startLine; - - for (;;) { - nextLine++; - if (nextLine >= endLine) { - // unclosed block should be autoclosed by end of document. - // also block seems to be autoclosed by end of parent - break; - } - - pos = mem = state.bMarks[nextLine] + state.tShift[nextLine]; - max = state.eMarks[nextLine]; - - if (pos < max && state.tShift[nextLine] < state.blkIndent) { - // non-empty line with negative indent should stop the list: - // - ``` - // test - break; - } - - if (state.src.charCodeAt(pos) !== marker) { continue; } - - if (state.tShift[nextLine] - state.blkIndent >= 4) { - // closing fence should be indented less than 4 spaces - continue; - } - - pos = state.skipChars(pos, marker); - - // closing code fence must be at least as long as the opening one - if (pos - mem < len) { continue; } - - // make sure tail has spaces only - pos = state.skipSpaces(pos); - - if (pos < max) { continue; } - - haveEndMarker = true; - // found! - break; - } - - // If a fence has heading spaces, they should be removed from its inner block - len = state.tShift[startLine]; - - state.line = nextLine + (haveEndMarker ? 1 : 0); - state.tokens.push({ - type: 'fence', - params: params, - content: state.getLines(startLine + 1, nextLine, len, true), - lines: [ startLine, state.line ], - level: state.level - }); - - return true; - } - - // Block quotes - - function blockquote(state, startLine, endLine, silent) { - var nextLine, lastLineEmpty, oldTShift, oldBMarks, oldIndent, oldParentType, lines, - terminatorRules, - i, l, terminate, - pos = state.bMarks[startLine] + state.tShift[startLine], - max = state.eMarks[startLine]; - - if (pos > max) { return false; } - - // check the block quote marker - if (state.src.charCodeAt(pos++) !== 0x3E/* > */) { return false; } - - if (state.level >= state.options.maxNesting) { return false; } - - // we know that it's going to be a valid blockquote, - // so no point trying to find the end of it in silent mode - if (silent) { return true; } - - // skip one optional space after '>' - if (state.src.charCodeAt(pos) === 0x20) { pos++; } - - oldIndent = state.blkIndent; - state.blkIndent = 0; - - oldBMarks = [ state.bMarks[startLine] ]; - state.bMarks[startLine] = pos; - - // check if we have an empty blockquote - pos = pos < max ? state.skipSpaces(pos) : pos; - lastLineEmpty = pos >= max; - - oldTShift = [ state.tShift[startLine] ]; - state.tShift[startLine] = pos - state.bMarks[startLine]; - - terminatorRules = state.parser.ruler.getRules('blockquote'); - - // Search the end of the block - // - // Block ends with either: - // 1. an empty line outside: - // ``` - // > test - // - // ``` - // 2. an empty line inside: - // ``` - // > - // test - // ``` - // 3. another tag - // ``` - // > test - // - - - - // ``` - for (nextLine = startLine + 1; nextLine < endLine; nextLine++) { - pos = state.bMarks[nextLine] + state.tShift[nextLine]; - max = state.eMarks[nextLine]; - - if (pos >= max) { - // Case 1: line is not inside the blockquote, and this line is empty. - break; - } - - if (state.src.charCodeAt(pos++) === 0x3E/* > */) { - // This line is inside the blockquote. - - // skip one optional space after '>' - if (state.src.charCodeAt(pos) === 0x20) { pos++; } - - oldBMarks.push(state.bMarks[nextLine]); - state.bMarks[nextLine] = pos; - - pos = pos < max ? state.skipSpaces(pos) : pos; - lastLineEmpty = pos >= max; - - oldTShift.push(state.tShift[nextLine]); - state.tShift[nextLine] = pos - state.bMarks[nextLine]; - continue; - } - - // Case 2: line is not inside the blockquote, and the last line was empty. - if (lastLineEmpty) { break; } - - // Case 3: another tag found. - terminate = false; - for (i = 0, l = terminatorRules.length; i < l; i++) { - if (terminatorRules[i](state, nextLine, endLine, true)) { - terminate = true; - break; - } - } - if (terminate) { break; } - - oldBMarks.push(state.bMarks[nextLine]); - oldTShift.push(state.tShift[nextLine]); - - // A negative number means that this is a paragraph continuation; - // - // Any negative number will do the job here, but it's better for it - // to be large enough to make any bugs obvious. - state.tShift[nextLine] = -1337; - } - - oldParentType = state.parentType; - state.parentType = 'blockquote'; - state.tokens.push({ - type: 'blockquote_open', - lines: lines = [ startLine, 0 ], - level: state.level++ - }); - state.parser.tokenize(state, startLine, nextLine); - state.tokens.push({ - type: 'blockquote_close', - level: --state.level - }); - state.parentType = oldParentType; - lines[1] = state.line; - - // Restore original tShift; this might not be necessary since the parser - // has already been here, but just to make sure we can do that. - for (i = 0; i < oldTShift.length; i++) { - state.bMarks[i + startLine] = oldBMarks[i]; - state.tShift[i + startLine] = oldTShift[i]; - } - state.blkIndent = oldIndent; - - return true; - } - - // Horizontal rule - - function hr(state, startLine, endLine, silent) { - var marker, cnt, ch, - pos = state.bMarks[startLine], - max = state.eMarks[startLine]; - - pos += state.tShift[startLine]; - - if (pos > max) { return false; } - - marker = state.src.charCodeAt(pos++); - - // Check hr marker - if (marker !== 0x2A/* * */ && - marker !== 0x2D/* - */ && - marker !== 0x5F/* _ */) { - return false; - } - - // markers can be mixed with spaces, but there should be at least 3 one - - cnt = 1; - while (pos < max) { - ch = state.src.charCodeAt(pos++); - if (ch !== marker && ch !== 0x20/* space */) { return false; } - if (ch === marker) { cnt++; } - } - - if (cnt < 3) { return false; } - - if (silent) { return true; } - - state.line = startLine + 1; - state.tokens.push({ - type: 'hr', - lines: [ startLine, state.line ], - level: state.level - }); - - return true; - } - - // Lists - - // Search `[-+*][\n ]`, returns next pos arter marker on success - // or -1 on fail. - function skipBulletListMarker(state, startLine) { - var marker, pos, max; - - pos = state.bMarks[startLine] + state.tShift[startLine]; - max = state.eMarks[startLine]; - - if (pos >= max) { return -1; } - - marker = state.src.charCodeAt(pos++); - // Check bullet - if (marker !== 0x2A/* * */ && - marker !== 0x2D/* - */ && - marker !== 0x2B/* + */) { - return -1; - } - - if (pos < max && state.src.charCodeAt(pos) !== 0x20) { - // " 1.test " - is not a list item - return -1; - } - - return pos; - } - - // Search `\d+[.)][\n ]`, returns next pos arter marker on success - // or -1 on fail. - function skipOrderedListMarker(state, startLine) { - var ch, - pos = state.bMarks[startLine] + state.tShift[startLine], - max = state.eMarks[startLine]; - - if (pos + 1 >= max) { return -1; } - - ch = state.src.charCodeAt(pos++); - - if (ch < 0x30/* 0 */ || ch > 0x39/* 9 */) { return -1; } - - for (;;) { - // EOL -> fail - if (pos >= max) { return -1; } - - ch = state.src.charCodeAt(pos++); - - if (ch >= 0x30/* 0 */ && ch <= 0x39/* 9 */) { - continue; - } - - // found valid marker - if (ch === 0x29/* ) */ || ch === 0x2e/* . */) { - break; - } - - return -1; - } - - - if (pos < max && state.src.charCodeAt(pos) !== 0x20/* space */) { - // " 1.test " - is not a list item - return -1; - } - return pos; - } - - function markTightParagraphs(state, idx) { - var i, l, - level = state.level + 2; - - for (i = idx + 2, l = state.tokens.length - 2; i < l; i++) { - if (state.tokens[i].level === level && state.tokens[i].type === 'paragraph_open') { - state.tokens[i + 2].tight = true; - state.tokens[i].tight = true; - i += 2; - } - } - } - - - function list(state, startLine, endLine, silent) { - var nextLine, - indent, - oldTShift, - oldIndent, - oldTight, - oldParentType, - start, - posAfterMarker, - max, - indentAfterMarker, - markerValue, - markerCharCode, - isOrdered, - contentStart, - listTokIdx, - prevEmptyEnd, - listLines, - itemLines, - tight = true, - terminatorRules, - i, l, terminate; - - // Detect list type and position after marker - if ((posAfterMarker = skipOrderedListMarker(state, startLine)) >= 0) { - isOrdered = true; - } else if ((posAfterMarker = skipBulletListMarker(state, startLine)) >= 0) { - isOrdered = false; - } else { - return false; - } - - if (state.level >= state.options.maxNesting) { return false; } - - // We should terminate list on style change. Remember first one to compare. - markerCharCode = state.src.charCodeAt(posAfterMarker - 1); - - // For validation mode we can terminate immediately - if (silent) { return true; } - - // Start list - listTokIdx = state.tokens.length; - - if (isOrdered) { - start = state.bMarks[startLine] + state.tShift[startLine]; - markerValue = Number(state.src.substr(start, posAfterMarker - start - 1)); - - state.tokens.push({ - type: 'ordered_list_open', - order: markerValue, - lines: listLines = [ startLine, 0 ], - level: state.level++ - }); - - } else { - state.tokens.push({ - type: 'bullet_list_open', - lines: listLines = [ startLine, 0 ], - level: state.level++ - }); - } - - // - // Iterate list items - // - - nextLine = startLine; - prevEmptyEnd = false; - terminatorRules = state.parser.ruler.getRules('list'); - - while (nextLine < endLine) { - contentStart = state.skipSpaces(posAfterMarker); - max = state.eMarks[nextLine]; - - if (contentStart >= max) { - // trimming space in "- \n 3" case, indent is 1 here - indentAfterMarker = 1; - } else { - indentAfterMarker = contentStart - posAfterMarker; - } - - // If we have more than 4 spaces, the indent is 1 - // (the rest is just indented code block) - if (indentAfterMarker > 4) { indentAfterMarker = 1; } - - // If indent is less than 1, assume that it's one, example: - // "-\n test" - if (indentAfterMarker < 1) { indentAfterMarker = 1; } - - // " - test" - // ^^^^^ - calculating total length of this thing - indent = (posAfterMarker - state.bMarks[nextLine]) + indentAfterMarker; - - // Run subparser & write tokens - state.tokens.push({ - type: 'list_item_open', - lines: itemLines = [ startLine, 0 ], - level: state.level++ - }); - - oldIndent = state.blkIndent; - oldTight = state.tight; - oldTShift = state.tShift[startLine]; - oldParentType = state.parentType; - state.tShift[startLine] = contentStart - state.bMarks[startLine]; - state.blkIndent = indent; - state.tight = true; - state.parentType = 'list'; - - state.parser.tokenize(state, startLine, endLine, true); - - // If any of list item is tight, mark list as tight - if (!state.tight || prevEmptyEnd) { - tight = false; - } - // Item become loose if finish with empty line, - // but we should filter last element, because it means list finish - prevEmptyEnd = (state.line - startLine) > 1 && state.isEmpty(state.line - 1); - - state.blkIndent = oldIndent; - state.tShift[startLine] = oldTShift; - state.tight = oldTight; - state.parentType = oldParentType; - - state.tokens.push({ - type: 'list_item_close', - level: --state.level - }); - - nextLine = startLine = state.line; - itemLines[1] = nextLine; - contentStart = state.bMarks[startLine]; - - if (nextLine >= endLine) { break; } - - if (state.isEmpty(nextLine)) { - break; - } - - // - // Try to check if list is terminated or continued. - // - if (state.tShift[nextLine] < state.blkIndent) { break; } - - // fail if terminating block found - terminate = false; - for (i = 0, l = terminatorRules.length; i < l; i++) { - if (terminatorRules[i](state, nextLine, endLine, true)) { - terminate = true; - break; - } - } - if (terminate) { break; } - - // fail if list has another type - if (isOrdered) { - posAfterMarker = skipOrderedListMarker(state, nextLine); - if (posAfterMarker < 0) { break; } - } else { - posAfterMarker = skipBulletListMarker(state, nextLine); - if (posAfterMarker < 0) { break; } - } - - if (markerCharCode !== state.src.charCodeAt(posAfterMarker - 1)) { break; } - } - - // Finilize list - state.tokens.push({ - type: isOrdered ? 'ordered_list_close' : 'bullet_list_close', - level: --state.level - }); - listLines[1] = nextLine; - - state.line = nextLine; - - // mark paragraphs tight if needed - if (tight) { - markTightParagraphs(state, listTokIdx); - } - - return true; - } - - // Process footnote reference list - - function footnote(state, startLine, endLine, silent) { - var oldBMark, oldTShift, oldParentType, pos, label, - start = state.bMarks[startLine] + state.tShift[startLine], - max = state.eMarks[startLine]; - - // line should be at least 5 chars - "[^x]:" - if (start + 4 > max) { return false; } - - if (state.src.charCodeAt(start) !== 0x5B/* [ */) { return false; } - if (state.src.charCodeAt(start + 1) !== 0x5E/* ^ */) { return false; } - if (state.level >= state.options.maxNesting) { return false; } - - for (pos = start + 2; pos < max; pos++) { - if (state.src.charCodeAt(pos) === 0x20) { return false; } - if (state.src.charCodeAt(pos) === 0x5D /* ] */) { - break; - } - } - - if (pos === start + 2) { return false; } // no empty footnote labels - if (pos + 1 >= max || state.src.charCodeAt(++pos) !== 0x3A /* : */) { return false; } - if (silent) { return true; } - pos++; - - if (!state.env.footnotes) { state.env.footnotes = {}; } - if (!state.env.footnotes.refs) { state.env.footnotes.refs = {}; } - label = state.src.slice(start + 2, pos - 2); - state.env.footnotes.refs[':' + label] = -1; - - state.tokens.push({ - type: 'footnote_reference_open', - label: label, - level: state.level++ - }); - - oldBMark = state.bMarks[startLine]; - oldTShift = state.tShift[startLine]; - oldParentType = state.parentType; - state.tShift[startLine] = state.skipSpaces(pos) - pos; - state.bMarks[startLine] = pos; - state.blkIndent += 4; - state.parentType = 'footnote'; - - if (state.tShift[startLine] < state.blkIndent) { - state.tShift[startLine] += state.blkIndent; - state.bMarks[startLine] -= state.blkIndent; - } - - state.parser.tokenize(state, startLine, endLine, true); - - state.parentType = oldParentType; - state.blkIndent -= 4; - state.tShift[startLine] = oldTShift; - state.bMarks[startLine] = oldBMark; - - state.tokens.push({ - type: 'footnote_reference_close', - level: --state.level - }); - - return true; - } - - // heading (#, ##, ...) - - function heading(state, startLine, endLine, silent) { - var ch, level, tmp, - pos = state.bMarks[startLine] + state.tShift[startLine], - max = state.eMarks[startLine]; - - if (pos >= max) { return false; } - - ch = state.src.charCodeAt(pos); - - if (ch !== 0x23/* # */ || pos >= max) { return false; } - - // count heading level - level = 1; - ch = state.src.charCodeAt(++pos); - while (ch === 0x23/* # */ && pos < max && level <= 6) { - level++; - ch = state.src.charCodeAt(++pos); - } - - if (level > 6 || (pos < max && ch !== 0x20/* space */)) { return false; } - - if (silent) { return true; } - - // Let's cut tails like ' ### ' from the end of string - - max = state.skipCharsBack(max, 0x20, pos); // space - tmp = state.skipCharsBack(max, 0x23, pos); // # - if (tmp > pos && state.src.charCodeAt(tmp - 1) === 0x20/* space */) { - max = tmp; - } - - state.line = startLine + 1; - - state.tokens.push({ type: 'heading_open', - hLevel: level, - lines: [ startLine, state.line ], - level: state.level - }); - - // only if header is not empty - if (pos < max) { - state.tokens.push({ - type: 'inline', - content: state.src.slice(pos, max).trim(), - level: state.level + 1, - lines: [ startLine, state.line ], - children: [] - }); - } - state.tokens.push({ type: 'heading_close', hLevel: level, level: state.level }); - - return true; - } - - // lheading (---, ===) - - function lheading(state, startLine, endLine/*, silent*/) { - var marker, pos, max, - next = startLine + 1; - - if (next >= endLine) { return false; } - if (state.tShift[next] < state.blkIndent) { return false; } - - // Scan next line - - if (state.tShift[next] - state.blkIndent > 3) { return false; } - - pos = state.bMarks[next] + state.tShift[next]; - max = state.eMarks[next]; - - if (pos >= max) { return false; } - - marker = state.src.charCodeAt(pos); - - if (marker !== 0x2D/* - */ && marker !== 0x3D/* = */) { return false; } - - pos = state.skipChars(pos, marker); - - pos = state.skipSpaces(pos); - - if (pos < max) { return false; } - - pos = state.bMarks[startLine] + state.tShift[startLine]; - - state.line = next + 1; - state.tokens.push({ - type: 'heading_open', - hLevel: marker === 0x3D/* = */ ? 1 : 2, - lines: [ startLine, state.line ], - level: state.level - }); - state.tokens.push({ - type: 'inline', - content: state.src.slice(pos, state.eMarks[startLine]).trim(), - level: state.level + 1, - lines: [ startLine, state.line - 1 ], - children: [] - }); - state.tokens.push({ - type: 'heading_close', - hLevel: marker === 0x3D/* = */ ? 1 : 2, - level: state.level - }); - - return true; - } - - // List of valid html blocks names, accorting to commonmark spec - // http://jgm.github.io/CommonMark/spec.html#html-blocks - - var html_blocks = {}; - - [ - 'article', - 'aside', - 'button', - 'blockquote', - 'body', - 'canvas', - 'caption', - 'col', - 'colgroup', - 'dd', - 'div', - 'dl', - 'dt', - 'embed', - 'fieldset', - 'figcaption', - 'figure', - 'footer', - 'form', - 'h1', - 'h2', - 'h3', - 'h4', - 'h5', - 'h6', - 'header', - 'hgroup', - 'hr', - 'iframe', - 'li', - 'map', - 'object', - 'ol', - 'output', - 'p', - 'pre', - 'progress', - 'script', - 'section', - 'style', - 'table', - 'tbody', - 'td', - 'textarea', - 'tfoot', - 'th', - 'tr', - 'thead', - 'ul', - 'video' - ].forEach(function (name) { html_blocks[name] = true; }); - - // HTML block - - - var HTML_TAG_OPEN_RE = /^<([a-zA-Z]{1,15})[\s\/>]/; - var HTML_TAG_CLOSE_RE = /^<\/([a-zA-Z]{1,15})[\s>]/; - - function isLetter$1(ch) { - /*eslint no-bitwise:0*/ - var lc = ch | 0x20; // to lower case - return (lc >= 0x61/* a */) && (lc <= 0x7a/* z */); - } - - function htmlblock(state, startLine, endLine, silent) { - var ch, match, nextLine, - pos = state.bMarks[startLine], - max = state.eMarks[startLine], - shift = state.tShift[startLine]; - - pos += shift; - - if (!state.options.html) { return false; } - - if (shift > 3 || pos + 2 >= max) { return false; } - - if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false; } - - ch = state.src.charCodeAt(pos + 1); - - if (ch === 0x21/* ! */ || ch === 0x3F/* ? */) { - // Directive start / comment start / processing instruction start - if (silent) { return true; } - - } else if (ch === 0x2F/* / */ || isLetter$1(ch)) { - - // Probably start or end of tag - if (ch === 0x2F/* \ */) { - // closing tag - match = state.src.slice(pos, max).match(HTML_TAG_CLOSE_RE); - if (!match) { return false; } - } else { - // opening tag - match = state.src.slice(pos, max).match(HTML_TAG_OPEN_RE); - if (!match) { return false; } - } - // Make sure tag name is valid - if (html_blocks[match[1].toLowerCase()] !== true) { return false; } - if (silent) { return true; } - - } else { - return false; - } - - // If we are here - we detected HTML block. - // Let's roll down till empty line (block end). - nextLine = startLine + 1; - while (nextLine < state.lineMax && !state.isEmpty(nextLine)) { - nextLine++; - } - - state.line = nextLine; - state.tokens.push({ - type: 'htmlblock', - level: state.level, - lines: [ startLine, state.line ], - content: state.getLines(startLine, nextLine, 0, true) - }); - - return true; - } - - // GFM table, non-standard - - function getLine(state, line) { - var pos = state.bMarks[line] + state.blkIndent, - max = state.eMarks[line]; - - return state.src.substr(pos, max - pos); - } - - function table(state, startLine, endLine, silent) { - var ch, lineText, pos, i, nextLine, rows, cell, - aligns, t, tableLines, tbodyLines; - - // should have at least three lines - if (startLine + 2 > endLine) { return false; } - - nextLine = startLine + 1; - - if (state.tShift[nextLine] < state.blkIndent) { return false; } - - // first character of the second line should be '|' or '-' - - pos = state.bMarks[nextLine] + state.tShift[nextLine]; - if (pos >= state.eMarks[nextLine]) { return false; } - - ch = state.src.charCodeAt(pos); - if (ch !== 0x7C/* | */ && ch !== 0x2D/* - */ && ch !== 0x3A/* : */) { return false; } - - lineText = getLine(state, startLine + 1); - if (!/^[-:| ]+$/.test(lineText)) { return false; } - - rows = lineText.split('|'); - if (rows <= 2) { return false; } - aligns = []; - for (i = 0; i < rows.length; i++) { - t = rows[i].trim(); - if (!t) { - // allow empty columns before and after table, but not in between columns; - // e.g. allow ` |---| `, disallow ` ---||--- ` - if (i === 0 || i === rows.length - 1) { - continue; - } else { - return false; - } - } - - if (!/^:?-+:?$/.test(t)) { return false; } - if (t.charCodeAt(t.length - 1) === 0x3A/* : */) { - aligns.push(t.charCodeAt(0) === 0x3A/* : */ ? 'center' : 'right'); - } else if (t.charCodeAt(0) === 0x3A/* : */) { - aligns.push('left'); - } else { - aligns.push(''); - } - } - - lineText = getLine(state, startLine).trim(); - if (lineText.indexOf('|') === -1) { return false; } - rows = lineText.replace(/^\||\|$/g, '').split('|'); - if (aligns.length !== rows.length) { return false; } - if (silent) { return true; } - - state.tokens.push({ - type: 'table_open', - lines: tableLines = [ startLine, 0 ], - level: state.level++ - }); - state.tokens.push({ - type: 'thead_open', - lines: [ startLine, startLine + 1 ], - level: state.level++ - }); - - state.tokens.push({ - type: 'tr_open', - lines: [ startLine, startLine + 1 ], - level: state.level++ - }); - for (i = 0; i < rows.length; i++) { - state.tokens.push({ - type: 'th_open', - align: aligns[i], - lines: [ startLine, startLine + 1 ], - level: state.level++ - }); - state.tokens.push({ - type: 'inline', - content: rows[i].trim(), - lines: [ startLine, startLine + 1 ], - level: state.level, - children: [] - }); - state.tokens.push({ type: 'th_close', level: --state.level }); - } - state.tokens.push({ type: 'tr_close', level: --state.level }); - state.tokens.push({ type: 'thead_close', level: --state.level }); - - state.tokens.push({ - type: 'tbody_open', - lines: tbodyLines = [ startLine + 2, 0 ], - level: state.level++ - }); - - for (nextLine = startLine + 2; nextLine < endLine; nextLine++) { - if (state.tShift[nextLine] < state.blkIndent) { break; } - - lineText = getLine(state, nextLine).trim(); - if (lineText.indexOf('|') === -1) { break; } - rows = lineText.replace(/^\||\|$/g, '').split('|'); - - state.tokens.push({ type: 'tr_open', level: state.level++ }); - for (i = 0; i < rows.length; i++) { - state.tokens.push({ type: 'td_open', align: aligns[i], level: state.level++ }); - // 0x7c === '|' - cell = rows[i].substring( - rows[i].charCodeAt(0) === 0x7c ? 1 : 0, - rows[i].charCodeAt(rows[i].length - 1) === 0x7c ? rows[i].length - 1 : rows[i].length - ).trim(); - state.tokens.push({ - type: 'inline', - content: cell, - level: state.level, - children: [] - }); - state.tokens.push({ type: 'td_close', level: --state.level }); - } - state.tokens.push({ type: 'tr_close', level: --state.level }); - } - state.tokens.push({ type: 'tbody_close', level: --state.level }); - state.tokens.push({ type: 'table_close', level: --state.level }); - - tableLines[1] = tbodyLines[1] = nextLine; - state.line = nextLine; - return true; - } - - // Definition lists - - // Search `[:~][\n ]`, returns next pos after marker on success - // or -1 on fail. - function skipMarker(state, line) { - var pos, marker, - start = state.bMarks[line] + state.tShift[line], - max = state.eMarks[line]; - - if (start >= max) { return -1; } - - // Check bullet - marker = state.src.charCodeAt(start++); - if (marker !== 0x7E/* ~ */ && marker !== 0x3A/* : */) { return -1; } - - pos = state.skipSpaces(start); - - // require space after ":" - if (start === pos) { return -1; } - - // no empty definitions, e.g. " : " - if (pos >= max) { return -1; } - - return pos; - } - - function markTightParagraphs$1(state, idx) { - var i, l, - level = state.level + 2; - - for (i = idx + 2, l = state.tokens.length - 2; i < l; i++) { - if (state.tokens[i].level === level && state.tokens[i].type === 'paragraph_open') { - state.tokens[i + 2].tight = true; - state.tokens[i].tight = true; - i += 2; - } - } - } - - function deflist(state, startLine, endLine, silent) { - var contentStart, - ddLine, - dtLine, - itemLines, - listLines, - listTokIdx, - nextLine, - oldIndent, - oldDDIndent, - oldParentType, - oldTShift, - oldTight, - prevEmptyEnd, - tight; - - if (silent) { - // quirk: validation mode validates a dd block only, not a whole deflist - if (state.ddIndent < 0) { return false; } - return skipMarker(state, startLine) >= 0; - } - - nextLine = startLine + 1; - if (state.isEmpty(nextLine)) { - if (++nextLine > endLine) { return false; } - } - - if (state.tShift[nextLine] < state.blkIndent) { return false; } - contentStart = skipMarker(state, nextLine); - if (contentStart < 0) { return false; } - - if (state.level >= state.options.maxNesting) { return false; } - - // Start list - listTokIdx = state.tokens.length; - - state.tokens.push({ - type: 'dl_open', - lines: listLines = [ startLine, 0 ], - level: state.level++ - }); - - // - // Iterate list items - // - - dtLine = startLine; - ddLine = nextLine; - - // One definition list can contain multiple DTs, - // and one DT can be followed by multiple DDs. - // - // Thus, there is two loops here, and label is - // needed to break out of the second one - // - /*eslint no-labels:0,block-scoped-var:0*/ - OUTER: - for (;;) { - tight = true; - prevEmptyEnd = false; - - state.tokens.push({ - type: 'dt_open', - lines: [ dtLine, dtLine ], - level: state.level++ - }); - state.tokens.push({ - type: 'inline', - content: state.getLines(dtLine, dtLine + 1, state.blkIndent, false).trim(), - level: state.level + 1, - lines: [ dtLine, dtLine ], - children: [] - }); - state.tokens.push({ - type: 'dt_close', - level: --state.level - }); - - for (;;) { - state.tokens.push({ - type: 'dd_open', - lines: itemLines = [ nextLine, 0 ], - level: state.level++ - }); - - oldTight = state.tight; - oldDDIndent = state.ddIndent; - oldIndent = state.blkIndent; - oldTShift = state.tShift[ddLine]; - oldParentType = state.parentType; - state.blkIndent = state.ddIndent = state.tShift[ddLine] + 2; - state.tShift[ddLine] = contentStart - state.bMarks[ddLine]; - state.tight = true; - state.parentType = 'deflist'; - - state.parser.tokenize(state, ddLine, endLine, true); - - // If any of list item is tight, mark list as tight - if (!state.tight || prevEmptyEnd) { - tight = false; - } - // Item become loose if finish with empty line, - // but we should filter last element, because it means list finish - prevEmptyEnd = (state.line - ddLine) > 1 && state.isEmpty(state.line - 1); - - state.tShift[ddLine] = oldTShift; - state.tight = oldTight; - state.parentType = oldParentType; - state.blkIndent = oldIndent; - state.ddIndent = oldDDIndent; - - state.tokens.push({ - type: 'dd_close', - level: --state.level - }); - - itemLines[1] = nextLine = state.line; - - if (nextLine >= endLine) { break OUTER; } - - if (state.tShift[nextLine] < state.blkIndent) { break OUTER; } - contentStart = skipMarker(state, nextLine); - if (contentStart < 0) { break; } - - ddLine = nextLine; - - // go to the next loop iteration: - // insert DD tag and repeat checking - } - - if (nextLine >= endLine) { break; } - dtLine = nextLine; - - if (state.isEmpty(dtLine)) { break; } - if (state.tShift[dtLine] < state.blkIndent) { break; } - - ddLine = dtLine + 1; - if (ddLine >= endLine) { break; } - if (state.isEmpty(ddLine)) { ddLine++; } - if (ddLine >= endLine) { break; } - - if (state.tShift[ddLine] < state.blkIndent) { break; } - contentStart = skipMarker(state, ddLine); - if (contentStart < 0) { break; } - - // go to the next loop iteration: - // insert DT and DD tags and repeat checking - } - - // Finilize list - state.tokens.push({ - type: 'dl_close', - level: --state.level - }); - listLines[1] = nextLine; - - state.line = nextLine; - - // mark paragraphs tight if needed - if (tight) { - markTightParagraphs$1(state, listTokIdx); - } - - return true; - } - - // Paragraph - - function paragraph(state, startLine/*, endLine*/) { - var endLine, content, terminate, i, l, - nextLine = startLine + 1, - terminatorRules; - - endLine = state.lineMax; - - // jump line-by-line until empty one or EOF - if (nextLine < endLine && !state.isEmpty(nextLine)) { - terminatorRules = state.parser.ruler.getRules('paragraph'); - - for (; nextLine < endLine && !state.isEmpty(nextLine); nextLine++) { - // this would be a code block normally, but after paragraph - // it's considered a lazy continuation regardless of what's there - if (state.tShift[nextLine] - state.blkIndent > 3) { continue; } - - // Some tags can terminate paragraph without empty line. - terminate = false; - for (i = 0, l = terminatorRules.length; i < l; i++) { - if (terminatorRules[i](state, nextLine, endLine, true)) { - terminate = true; - break; - } - } - if (terminate) { break; } - } - } - - content = state.getLines(startLine, nextLine, state.blkIndent, false).trim(); - - state.line = nextLine; - if (content.length) { - state.tokens.push({ - type: 'paragraph_open', - tight: false, - lines: [ startLine, state.line ], - level: state.level - }); - state.tokens.push({ - type: 'inline', - content: content, - level: state.level + 1, - lines: [ startLine, state.line ], - children: [] - }); - state.tokens.push({ - type: 'paragraph_close', - tight: false, - level: state.level - }); - } - - return true; - } - - /** - * Parser rules - */ - - var _rules$1 = [ - [ 'code', code ], - [ 'fences', fences, [ 'paragraph', 'blockquote', 'list' ] ], - [ 'blockquote', blockquote, [ 'paragraph', 'blockquote', 'list' ] ], - [ 'hr', hr, [ 'paragraph', 'blockquote', 'list' ] ], - [ 'list', list, [ 'paragraph', 'blockquote' ] ], - [ 'footnote', footnote, [ 'paragraph' ] ], - [ 'heading', heading, [ 'paragraph', 'blockquote' ] ], - [ 'lheading', lheading ], - [ 'htmlblock', htmlblock, [ 'paragraph', 'blockquote' ] ], - [ 'table', table, [ 'paragraph' ] ], - [ 'deflist', deflist, [ 'paragraph' ] ], - [ 'paragraph', paragraph ] - ]; - - /** - * Block Parser class - * - * @api private - */ - - function ParserBlock() { - this.ruler = new Ruler(); - for (var i = 0; i < _rules$1.length; i++) { - this.ruler.push(_rules$1[i][0], _rules$1[i][1], { - alt: (_rules$1[i][2] || []).slice() - }); - } - } - - /** - * Generate tokens for the given input range. - * - * @param {Object} `state` Has properties like `src`, `parser`, `options` etc - * @param {Number} `startLine` - * @param {Number} `endLine` - * @api private - */ - - ParserBlock.prototype.tokenize = function (state, startLine, endLine) { - var rules = this.ruler.getRules(''); - var len = rules.length; - var line = startLine; - var hasEmptyLines = false; - var ok, i; - - while (line < endLine) { - state.line = line = state.skipEmptyLines(line); - if (line >= endLine) { - break; - } - - // Termination condition for nested calls. - // Nested calls currently used for blockquotes & lists - if (state.tShift[line] < state.blkIndent) { - break; - } - - // Try all possible rules. - // On success, rule should: - // - // - update `state.line` - // - update `state.tokens` - // - return true - - for (i = 0; i < len; i++) { - ok = rules[i](state, line, endLine, false); - if (ok) { - break; - } - } - - // set state.tight iff we had an empty line before current tag - // i.e. latest empty line should not count - state.tight = !hasEmptyLines; - - // paragraph might "eat" one newline after it in nested lists - if (state.isEmpty(state.line - 1)) { - hasEmptyLines = true; - } - - line = state.line; - - if (line < endLine && state.isEmpty(line)) { - hasEmptyLines = true; - line++; - - // two empty lines should stop the parser in list mode - if (line < endLine && state.parentType === 'list' && state.isEmpty(line)) { break; } - state.line = line; - } - } - }; - - var TABS_SCAN_RE = /[\n\t]/g; - var NEWLINES_RE = /\r[\n\u0085]|[\u2424\u2028\u0085]/g; - var SPACES_RE = /\u00a0/g; - - /** - * Tokenize the given `str`. - * - * @param {String} `str` Source string - * @param {Object} `options` - * @param {Object} `env` - * @param {Array} `outTokens` - * @api private - */ - - ParserBlock.prototype.parse = function (str, options, env, outTokens) { - var state, lineStart = 0, lastTabPos = 0; - if (!str) { return []; } - - // Normalize spaces - str = str.replace(SPACES_RE, ' '); - - // Normalize newlines - str = str.replace(NEWLINES_RE, '\n'); - - // Replace tabs with proper number of spaces (1..4) - if (str.indexOf('\t') >= 0) { - str = str.replace(TABS_SCAN_RE, function (match, offset) { - var result; - if (str.charCodeAt(offset) === 0x0A) { - lineStart = offset + 1; - lastTabPos = 0; - return match; - } - result = ' '.slice((offset - lineStart - lastTabPos) % 4); - lastTabPos = offset - lineStart + 1; - return result; - }); - } - - state = new StateBlock(str, this, options, env, outTokens); - this.tokenize(state, state.line, state.lineMax); - }; - - // Skip text characters for text token, place those to pending buffer - // and increment current pos - - // Rule to skip pure text - // '{}$%@~+=:' reserved for extentions - - function isTerminatorChar(ch) { - switch (ch) { - case 0x0A/* \n */: - case 0x5C/* \ */: - case 0x60/* ` */: - case 0x2A/* * */: - case 0x5F/* _ */: - case 0x5E/* ^ */: - case 0x5B/* [ */: - case 0x5D/* ] */: - case 0x21/* ! */: - case 0x26/* & */: - case 0x3C/* < */: - case 0x3E/* > */: - case 0x7B/* { */: - case 0x7D/* } */: - case 0x24/* $ */: - case 0x25/* % */: - case 0x40/* @ */: - case 0x7E/* ~ */: - case 0x2B/* + */: - case 0x3D/* = */: - case 0x3A/* : */: - return true; - default: - return false; - } - } - - function text(state, silent) { - var pos = state.pos; - - while (pos < state.posMax && !isTerminatorChar(state.src.charCodeAt(pos))) { - pos++; - } - - if (pos === state.pos) { return false; } - - if (!silent) { state.pending += state.src.slice(state.pos, pos); } - - state.pos = pos; - - return true; - } - - // Proceess '\n' - - function newline(state, silent) { - var pmax, max, pos = state.pos; - - if (state.src.charCodeAt(pos) !== 0x0A/* \n */) { return false; } - - pmax = state.pending.length - 1; - max = state.posMax; - - // ' \n' -> hardbreak - // Lookup in pending chars is bad practice! Don't copy to other rules! - // Pending string is stored in concat mode, indexed lookups will cause - // convertion to flat mode. - if (!silent) { - if (pmax >= 0 && state.pending.charCodeAt(pmax) === 0x20) { - if (pmax >= 1 && state.pending.charCodeAt(pmax - 1) === 0x20) { - // Strip out all trailing spaces on this line. - for (var i = pmax - 2; i >= 0; i--) { - if (state.pending.charCodeAt(i) !== 0x20) { - state.pending = state.pending.substring(0, i + 1); - break; - } - } - state.push({ - type: 'hardbreak', - level: state.level - }); - } else { - state.pending = state.pending.slice(0, -1); - state.push({ - type: 'softbreak', - level: state.level - }); - } - - } else { - state.push({ - type: 'softbreak', - level: state.level - }); - } - } - - pos++; - - // skip heading spaces for next line - while (pos < max && state.src.charCodeAt(pos) === 0x20) { pos++; } - - state.pos = pos; - return true; - } - - // Proceess escaped chars and hardbreaks - - var ESCAPED = []; - - for (var i = 0; i < 256; i++) { ESCAPED.push(0); } - - '\\!"#$%&\'()*+,./:;<=>?@[]^_`{|}~-' - .split('').forEach(function(ch) { ESCAPED[ch.charCodeAt(0)] = 1; }); - - - function escape(state, silent) { - var ch, pos = state.pos, max = state.posMax; - - if (state.src.charCodeAt(pos) !== 0x5C/* \ */) { return false; } - - pos++; - - if (pos < max) { - ch = state.src.charCodeAt(pos); - - if (ch < 256 && ESCAPED[ch] !== 0) { - if (!silent) { state.pending += state.src[pos]; } - state.pos += 2; - return true; - } - - if (ch === 0x0A) { - if (!silent) { - state.push({ - type: 'hardbreak', - level: state.level - }); - } - - pos++; - // skip leading whitespaces from next line - while (pos < max && state.src.charCodeAt(pos) === 0x20) { pos++; } - - state.pos = pos; - return true; - } - } - - if (!silent) { state.pending += '\\'; } - state.pos++; - return true; - } - - // Parse backticks - - function backticks(state, silent) { - var start, max, marker, matchStart, matchEnd, - pos = state.pos, - ch = state.src.charCodeAt(pos); - - if (ch !== 0x60/* ` */) { return false; } - - start = pos; - pos++; - max = state.posMax; - - while (pos < max && state.src.charCodeAt(pos) === 0x60/* ` */) { pos++; } - - marker = state.src.slice(start, pos); - - matchStart = matchEnd = pos; - - while ((matchStart = state.src.indexOf('`', matchEnd)) !== -1) { - matchEnd = matchStart + 1; - - while (matchEnd < max && state.src.charCodeAt(matchEnd) === 0x60/* ` */) { matchEnd++; } - - if (matchEnd - matchStart === marker.length) { - if (!silent) { - state.push({ - type: 'code', - content: state.src.slice(pos, matchStart) - .replace(/[ \n]+/g, ' ') - .trim(), - block: false, - level: state.level - }); - } - state.pos = matchEnd; - return true; - } - } - - if (!silent) { state.pending += marker; } - state.pos += marker.length; - return true; - } - - // Process ~~deleted text~~ - - function del(state, silent) { - var found, - pos, - stack, - max = state.posMax, - start = state.pos, - lastChar, - nextChar; - - if (state.src.charCodeAt(start) !== 0x7E/* ~ */) { return false; } - if (silent) { return false; } // don't run any pairs in validation mode - if (start + 4 >= max) { return false; } - if (state.src.charCodeAt(start + 1) !== 0x7E/* ~ */) { return false; } - if (state.level >= state.options.maxNesting) { return false; } - - lastChar = start > 0 ? state.src.charCodeAt(start - 1) : -1; - nextChar = state.src.charCodeAt(start + 2); - - if (lastChar === 0x7E/* ~ */) { return false; } - if (nextChar === 0x7E/* ~ */) { return false; } - if (nextChar === 0x20 || nextChar === 0x0A) { return false; } - - pos = start + 2; - while (pos < max && state.src.charCodeAt(pos) === 0x7E/* ~ */) { pos++; } - if (pos > start + 3) { - // sequence of 4+ markers taking as literal, same as in a emphasis - state.pos += pos - start; - if (!silent) { state.pending += state.src.slice(start, pos); } - return true; - } - - state.pos = start + 2; - stack = 1; - - while (state.pos + 1 < max) { - if (state.src.charCodeAt(state.pos) === 0x7E/* ~ */) { - if (state.src.charCodeAt(state.pos + 1) === 0x7E/* ~ */) { - lastChar = state.src.charCodeAt(state.pos - 1); - nextChar = state.pos + 2 < max ? state.src.charCodeAt(state.pos + 2) : -1; - if (nextChar !== 0x7E/* ~ */ && lastChar !== 0x7E/* ~ */) { - if (lastChar !== 0x20 && lastChar !== 0x0A) { - // closing '~~' - stack--; - } else if (nextChar !== 0x20 && nextChar !== 0x0A) { - // opening '~~' - stack++; - } // else { - // // standalone ' ~~ ' indented with spaces - // } - if (stack <= 0) { - found = true; - break; - } - } - } - } - - state.parser.skipToken(state); - } - - if (!found) { - // parser failed to find ending tag, so it's not valid emphasis - state.pos = start; - return false; - } - - // found! - state.posMax = state.pos; - state.pos = start + 2; - - if (!silent) { - state.push({ type: 'del_open', level: state.level++ }); - state.parser.tokenize(state); - state.push({ type: 'del_close', level: --state.level }); - } - - state.pos = state.posMax + 2; - state.posMax = max; - return true; - } - - // Process ++inserted text++ - - function ins(state, silent) { - var found, - pos, - stack, - max = state.posMax, - start = state.pos, - lastChar, - nextChar; - - if (state.src.charCodeAt(start) !== 0x2B/* + */) { return false; } - if (silent) { return false; } // don't run any pairs in validation mode - if (start + 4 >= max) { return false; } - if (state.src.charCodeAt(start + 1) !== 0x2B/* + */) { return false; } - if (state.level >= state.options.maxNesting) { return false; } - - lastChar = start > 0 ? state.src.charCodeAt(start - 1) : -1; - nextChar = state.src.charCodeAt(start + 2); - - if (lastChar === 0x2B/* + */) { return false; } - if (nextChar === 0x2B/* + */) { return false; } - if (nextChar === 0x20 || nextChar === 0x0A) { return false; } - - pos = start + 2; - while (pos < max && state.src.charCodeAt(pos) === 0x2B/* + */) { pos++; } - if (pos !== start + 2) { - // sequence of 3+ markers taking as literal, same as in a emphasis - state.pos += pos - start; - if (!silent) { state.pending += state.src.slice(start, pos); } - return true; - } - - state.pos = start + 2; - stack = 1; - - while (state.pos + 1 < max) { - if (state.src.charCodeAt(state.pos) === 0x2B/* + */) { - if (state.src.charCodeAt(state.pos + 1) === 0x2B/* + */) { - lastChar = state.src.charCodeAt(state.pos - 1); - nextChar = state.pos + 2 < max ? state.src.charCodeAt(state.pos + 2) : -1; - if (nextChar !== 0x2B/* + */ && lastChar !== 0x2B/* + */) { - if (lastChar !== 0x20 && lastChar !== 0x0A) { - // closing '++' - stack--; - } else if (nextChar !== 0x20 && nextChar !== 0x0A) { - // opening '++' - stack++; - } // else { - // // standalone ' ++ ' indented with spaces - // } - if (stack <= 0) { - found = true; - break; - } - } - } - } - - state.parser.skipToken(state); - } - - if (!found) { - // parser failed to find ending tag, so it's not valid emphasis - state.pos = start; - return false; - } - - // found! - state.posMax = state.pos; - state.pos = start + 2; - - if (!silent) { - state.push({ type: 'ins_open', level: state.level++ }); - state.parser.tokenize(state); - state.push({ type: 'ins_close', level: --state.level }); - } - - state.pos = state.posMax + 2; - state.posMax = max; - return true; - } - - // Process ==highlighted text== - - function mark(state, silent) { - var found, - pos, - stack, - max = state.posMax, - start = state.pos, - lastChar, - nextChar; - - if (state.src.charCodeAt(start) !== 0x3D/* = */) { return false; } - if (silent) { return false; } // don't run any pairs in validation mode - if (start + 4 >= max) { return false; } - if (state.src.charCodeAt(start + 1) !== 0x3D/* = */) { return false; } - if (state.level >= state.options.maxNesting) { return false; } - - lastChar = start > 0 ? state.src.charCodeAt(start - 1) : -1; - nextChar = state.src.charCodeAt(start + 2); - - if (lastChar === 0x3D/* = */) { return false; } - if (nextChar === 0x3D/* = */) { return false; } - if (nextChar === 0x20 || nextChar === 0x0A) { return false; } - - pos = start + 2; - while (pos < max && state.src.charCodeAt(pos) === 0x3D/* = */) { pos++; } - if (pos !== start + 2) { - // sequence of 3+ markers taking as literal, same as in a emphasis - state.pos += pos - start; - if (!silent) { state.pending += state.src.slice(start, pos); } - return true; - } - - state.pos = start + 2; - stack = 1; - - while (state.pos + 1 < max) { - if (state.src.charCodeAt(state.pos) === 0x3D/* = */) { - if (state.src.charCodeAt(state.pos + 1) === 0x3D/* = */) { - lastChar = state.src.charCodeAt(state.pos - 1); - nextChar = state.pos + 2 < max ? state.src.charCodeAt(state.pos + 2) : -1; - if (nextChar !== 0x3D/* = */ && lastChar !== 0x3D/* = */) { - if (lastChar !== 0x20 && lastChar !== 0x0A) { - // closing '==' - stack--; - } else if (nextChar !== 0x20 && nextChar !== 0x0A) { - // opening '==' - stack++; - } // else { - // // standalone ' == ' indented with spaces - // } - if (stack <= 0) { - found = true; - break; - } - } - } - } - - state.parser.skipToken(state); - } - - if (!found) { - // parser failed to find ending tag, so it's not valid emphasis - state.pos = start; - return false; - } - - // found! - state.posMax = state.pos; - state.pos = start + 2; - - if (!silent) { - state.push({ type: 'mark_open', level: state.level++ }); - state.parser.tokenize(state); - state.push({ type: 'mark_close', level: --state.level }); - } - - state.pos = state.posMax + 2; - state.posMax = max; - return true; - } - - // Process *this* and _that_ - - function isAlphaNum(code) { - return (code >= 0x30 /* 0 */ && code <= 0x39 /* 9 */) || - (code >= 0x41 /* A */ && code <= 0x5A /* Z */) || - (code >= 0x61 /* a */ && code <= 0x7A /* z */); - } - - // parse sequence of emphasis markers, - // "start" should point at a valid marker - function scanDelims(state, start) { - var pos = start, lastChar, nextChar, count, - can_open = true, - can_close = true, - max = state.posMax, - marker = state.src.charCodeAt(start); - - lastChar = start > 0 ? state.src.charCodeAt(start - 1) : -1; - - while (pos < max && state.src.charCodeAt(pos) === marker) { pos++; } - if (pos >= max) { can_open = false; } - count = pos - start; - - if (count >= 4) { - // sequence of four or more unescaped markers can't start/end an emphasis - can_open = can_close = false; - } else { - nextChar = pos < max ? state.src.charCodeAt(pos) : -1; - - // check whitespace conditions - if (nextChar === 0x20 || nextChar === 0x0A) { can_open = false; } - if (lastChar === 0x20 || lastChar === 0x0A) { can_close = false; } - - if (marker === 0x5F /* _ */) { - // check if we aren't inside the word - if (isAlphaNum(lastChar)) { can_open = false; } - if (isAlphaNum(nextChar)) { can_close = false; } - } - } - - return { - can_open: can_open, - can_close: can_close, - delims: count - }; - } - - function emphasis(state, silent) { - var startCount, - count, - found, - oldCount, - newCount, - stack, - res, - max = state.posMax, - start = state.pos, - marker = state.src.charCodeAt(start); - - if (marker !== 0x5F/* _ */ && marker !== 0x2A /* * */) { return false; } - if (silent) { return false; } // don't run any pairs in validation mode - - res = scanDelims(state, start); - startCount = res.delims; - if (!res.can_open) { - state.pos += startCount; - if (!silent) { state.pending += state.src.slice(start, state.pos); } - return true; - } - - if (state.level >= state.options.maxNesting) { return false; } - - state.pos = start + startCount; - stack = [ startCount ]; - - while (state.pos < max) { - if (state.src.charCodeAt(state.pos) === marker) { - res = scanDelims(state, state.pos); - count = res.delims; - if (res.can_close) { - oldCount = stack.pop(); - newCount = count; - - while (oldCount !== newCount) { - if (newCount < oldCount) { - stack.push(oldCount - newCount); - break; - } - - // assert(newCount > oldCount) - newCount -= oldCount; - - if (stack.length === 0) { break; } - state.pos += oldCount; - oldCount = stack.pop(); - } - - if (stack.length === 0) { - startCount = oldCount; - found = true; - break; - } - state.pos += count; - continue; - } - - if (res.can_open) { stack.push(count); } - state.pos += count; - continue; - } - - state.parser.skipToken(state); - } - - if (!found) { - // parser failed to find ending tag, so it's not valid emphasis - state.pos = start; - return false; - } - - // found! - state.posMax = state.pos; - state.pos = start + startCount; - - if (!silent) { - if (startCount === 2 || startCount === 3) { - state.push({ type: 'strong_open', level: state.level++ }); - } - if (startCount === 1 || startCount === 3) { - state.push({ type: 'em_open', level: state.level++ }); - } - - state.parser.tokenize(state); - - if (startCount === 1 || startCount === 3) { - state.push({ type: 'em_close', level: --state.level }); - } - if (startCount === 2 || startCount === 3) { - state.push({ type: 'strong_close', level: --state.level }); - } - } - - state.pos = state.posMax + startCount; - state.posMax = max; - return true; - } - - // Process ~subscript~ - - // same as UNESCAPE_MD_RE plus a space - var UNESCAPE_RE = /\\([ \\!"#$%&'()*+,.\/:;<=>?@[\]^_`{|}~-])/g; - - function sub(state, silent) { - var found, - content, - max = state.posMax, - start = state.pos; - - if (state.src.charCodeAt(start) !== 0x7E/* ~ */) { return false; } - if (silent) { return false; } // don't run any pairs in validation mode - if (start + 2 >= max) { return false; } - if (state.level >= state.options.maxNesting) { return false; } - - state.pos = start + 1; - - while (state.pos < max) { - if (state.src.charCodeAt(state.pos) === 0x7E/* ~ */) { - found = true; - break; - } - - state.parser.skipToken(state); - } - - if (!found || start + 1 === state.pos) { - state.pos = start; - return false; - } - - content = state.src.slice(start + 1, state.pos); - - // don't allow unescaped spaces/newlines inside - if (content.match(/(^|[^\\])(\\\\)*\s/)) { - state.pos = start; - return false; - } - - // found! - state.posMax = state.pos; - state.pos = start + 1; - - if (!silent) { - state.push({ - type: 'sub', - level: state.level, - content: content.replace(UNESCAPE_RE, '$1') - }); - } - - state.pos = state.posMax + 1; - state.posMax = max; - return true; - } - - // Process ^superscript^ - - // same as UNESCAPE_MD_RE plus a space - var UNESCAPE_RE$1 = /\\([ \\!"#$%&'()*+,.\/:;<=>?@[\]^_`{|}~-])/g; - - function sup(state, silent) { - var found, - content, - max = state.posMax, - start = state.pos; - - if (state.src.charCodeAt(start) !== 0x5E/* ^ */) { return false; } - if (silent) { return false; } // don't run any pairs in validation mode - if (start + 2 >= max) { return false; } - if (state.level >= state.options.maxNesting) { return false; } - - state.pos = start + 1; - - while (state.pos < max) { - if (state.src.charCodeAt(state.pos) === 0x5E/* ^ */) { - found = true; - break; - } - - state.parser.skipToken(state); - } - - if (!found || start + 1 === state.pos) { - state.pos = start; - return false; - } - - content = state.src.slice(start + 1, state.pos); - - // don't allow unescaped spaces/newlines inside - if (content.match(/(^|[^\\])(\\\\)*\s/)) { - state.pos = start; - return false; - } - - // found! - state.posMax = state.pos; - state.pos = start + 1; - - if (!silent) { - state.push({ - type: 'sup', - level: state.level, - content: content.replace(UNESCAPE_RE$1, '$1') - }); - } - - state.pos = state.posMax + 1; - state.posMax = max; - return true; - } - - // Process [links]( "stuff") - - - function links(state, silent) { - var labelStart, - labelEnd, - label, - href, - title, - pos, - ref, - code, - isImage = false, - oldPos = state.pos, - max = state.posMax, - start = state.pos, - marker = state.src.charCodeAt(start); - - if (marker === 0x21/* ! */) { - isImage = true; - marker = state.src.charCodeAt(++start); - } - - if (marker !== 0x5B/* [ */) { return false; } - if (state.level >= state.options.maxNesting) { return false; } - - labelStart = start + 1; - labelEnd = parseLinkLabel(state, start); - - // parser failed to find ']', so it's not a valid link - if (labelEnd < 0) { return false; } - - pos = labelEnd + 1; - if (pos < max && state.src.charCodeAt(pos) === 0x28/* ( */) { - // - // Inline link - // - - // [link]( "title" ) - // ^^ skipping these spaces - pos++; - for (; pos < max; pos++) { - code = state.src.charCodeAt(pos); - if (code !== 0x20 && code !== 0x0A) { break; } - } - if (pos >= max) { return false; } - - // [link]( "title" ) - // ^^^^^^ parsing link destination - start = pos; - if (parseLinkDestination(state, pos)) { - href = state.linkContent; - pos = state.pos; - } else { - href = ''; - } - - // [link]( "title" ) - // ^^ skipping these spaces - start = pos; - for (; pos < max; pos++) { - code = state.src.charCodeAt(pos); - if (code !== 0x20 && code !== 0x0A) { break; } - } - - // [link]( "title" ) - // ^^^^^^^ parsing link title - if (pos < max && start !== pos && parseLinkTitle(state, pos)) { - title = state.linkContent; - pos = state.pos; - - // [link]( "title" ) - // ^^ skipping these spaces - for (; pos < max; pos++) { - code = state.src.charCodeAt(pos); - if (code !== 0x20 && code !== 0x0A) { break; } - } - } else { - title = ''; - } - - if (pos >= max || state.src.charCodeAt(pos) !== 0x29/* ) */) { - state.pos = oldPos; - return false; - } - pos++; - } else { - // - // Link reference - // - - // do not allow nested reference links - if (state.linkLevel > 0) { return false; } - - // [foo] [bar] - // ^^ optional whitespace (can include newlines) - for (; pos < max; pos++) { - code = state.src.charCodeAt(pos); - if (code !== 0x20 && code !== 0x0A) { break; } - } - - if (pos < max && state.src.charCodeAt(pos) === 0x5B/* [ */) { - start = pos + 1; - pos = parseLinkLabel(state, pos); - if (pos >= 0) { - label = state.src.slice(start, pos++); - } else { - pos = start - 1; - } - } - - // covers label === '' and label === undefined - // (collapsed reference link and shortcut reference link respectively) - if (!label) { - if (typeof label === 'undefined') { - pos = labelEnd + 1; - } - label = state.src.slice(labelStart, labelEnd); - } - - ref = state.env.references[normalizeReference(label)]; - if (!ref) { - state.pos = oldPos; - return false; - } - href = ref.href; - title = ref.title; - } - - // - // We found the end of the link, and know for a fact it's a valid link; - // so all that's left to do is to call tokenizer. - // - if (!silent) { - state.pos = labelStart; - state.posMax = labelEnd; - - if (isImage) { - state.push({ - type: 'image', - src: href, - title: title, - alt: state.src.substr(labelStart, labelEnd - labelStart), - level: state.level - }); - } else { - state.push({ - type: 'link_open', - href: href, - title: title, - level: state.level++ - }); - state.linkLevel++; - state.parser.tokenize(state); - state.linkLevel--; - state.push({ type: 'link_close', level: --state.level }); - } - } - - state.pos = pos; - state.posMax = max; - return true; - } - - // Process inline footnotes (^[...]) - - - function footnote_inline(state, silent) { - var labelStart, - labelEnd, - footnoteId, - oldLength, - max = state.posMax, - start = state.pos; - - if (start + 2 >= max) { return false; } - if (state.src.charCodeAt(start) !== 0x5E/* ^ */) { return false; } - if (state.src.charCodeAt(start + 1) !== 0x5B/* [ */) { return false; } - if (state.level >= state.options.maxNesting) { return false; } - - labelStart = start + 2; - labelEnd = parseLinkLabel(state, start + 1); - - // parser failed to find ']', so it's not a valid note - if (labelEnd < 0) { return false; } - - // We found the end of the link, and know for a fact it's a valid link; - // so all that's left to do is to call tokenizer. - // - if (!silent) { - if (!state.env.footnotes) { state.env.footnotes = {}; } - if (!state.env.footnotes.list) { state.env.footnotes.list = []; } - footnoteId = state.env.footnotes.list.length; - - state.pos = labelStart; - state.posMax = labelEnd; - - state.push({ - type: 'footnote_ref', - id: footnoteId, - level: state.level - }); - state.linkLevel++; - oldLength = state.tokens.length; - state.parser.tokenize(state); - state.env.footnotes.list[footnoteId] = { tokens: state.tokens.splice(oldLength) }; - state.linkLevel--; - } - - state.pos = labelEnd + 1; - state.posMax = max; - return true; - } - - // Process footnote references ([^...]) - - function footnote_ref(state, silent) { - var label, - pos, - footnoteId, - footnoteSubId, - max = state.posMax, - start = state.pos; - - // should be at least 4 chars - "[^x]" - if (start + 3 > max) { return false; } - - if (!state.env.footnotes || !state.env.footnotes.refs) { return false; } - if (state.src.charCodeAt(start) !== 0x5B/* [ */) { return false; } - if (state.src.charCodeAt(start + 1) !== 0x5E/* ^ */) { return false; } - if (state.level >= state.options.maxNesting) { return false; } - - for (pos = start + 2; pos < max; pos++) { - if (state.src.charCodeAt(pos) === 0x20) { return false; } - if (state.src.charCodeAt(pos) === 0x0A) { return false; } - if (state.src.charCodeAt(pos) === 0x5D /* ] */) { - break; - } - } - - if (pos === start + 2) { return false; } // no empty footnote labels - if (pos >= max) { return false; } - pos++; - - label = state.src.slice(start + 2, pos - 1); - if (typeof state.env.footnotes.refs[':' + label] === 'undefined') { return false; } - - if (!silent) { - if (!state.env.footnotes.list) { state.env.footnotes.list = []; } - - if (state.env.footnotes.refs[':' + label] < 0) { - footnoteId = state.env.footnotes.list.length; - state.env.footnotes.list[footnoteId] = { label: label, count: 0 }; - state.env.footnotes.refs[':' + label] = footnoteId; - } else { - footnoteId = state.env.footnotes.refs[':' + label]; - } - - footnoteSubId = state.env.footnotes.list[footnoteId].count; - state.env.footnotes.list[footnoteId].count++; - - state.push({ - type: 'footnote_ref', - id: footnoteId, - subId: footnoteSubId, - level: state.level - }); - } - - state.pos = pos; - state.posMax = max; - return true; - } - - // List of valid url schemas, accorting to commonmark spec - // http://jgm.github.io/CommonMark/spec.html#autolinks - - var url_schemas = [ - 'coap', - 'doi', - 'javascript', - 'aaa', - 'aaas', - 'about', - 'acap', - 'cap', - 'cid', - 'crid', - 'data', - 'dav', - 'dict', - 'dns', - 'file', - 'ftp', - 'geo', - 'go', - 'gopher', - 'h323', - 'http', - 'https', - 'iax', - 'icap', - 'im', - 'imap', - 'info', - 'ipp', - 'iris', - 'iris.beep', - 'iris.xpc', - 'iris.xpcs', - 'iris.lwz', - 'ldap', - 'mailto', - 'mid', - 'msrp', - 'msrps', - 'mtqp', - 'mupdate', - 'news', - 'nfs', - 'ni', - 'nih', - 'nntp', - 'opaquelocktoken', - 'pop', - 'pres', - 'rtsp', - 'service', - 'session', - 'shttp', - 'sieve', - 'sip', - 'sips', - 'sms', - 'snmp', - 'soap.beep', - 'soap.beeps', - 'tag', - 'tel', - 'telnet', - 'tftp', - 'thismessage', - 'tn3270', - 'tip', - 'tv', - 'urn', - 'vemmi', - 'ws', - 'wss', - 'xcon', - 'xcon-userid', - 'xmlrpc.beep', - 'xmlrpc.beeps', - 'xmpp', - 'z39.50r', - 'z39.50s', - 'adiumxtra', - 'afp', - 'afs', - 'aim', - 'apt', - 'attachment', - 'aw', - 'beshare', - 'bitcoin', - 'bolo', - 'callto', - 'chrome', - 'chrome-extension', - 'com-eventbrite-attendee', - 'content', - 'cvs', - 'dlna-playsingle', - 'dlna-playcontainer', - 'dtn', - 'dvb', - 'ed2k', - 'facetime', - 'feed', - 'finger', - 'fish', - 'gg', - 'git', - 'gizmoproject', - 'gtalk', - 'hcp', - 'icon', - 'ipn', - 'irc', - 'irc6', - 'ircs', - 'itms', - 'jar', - 'jms', - 'keyparc', - 'lastfm', - 'ldaps', - 'magnet', - 'maps', - 'market', - 'message', - 'mms', - 'ms-help', - 'msnim', - 'mumble', - 'mvn', - 'notes', - 'oid', - 'palm', - 'paparazzi', - 'platform', - 'proxy', - 'psyc', - 'query', - 'res', - 'resource', - 'rmi', - 'rsync', - 'rtmp', - 'secondlife', - 'sftp', - 'sgn', - 'skype', - 'smb', - 'soldat', - 'spotify', - 'ssh', - 'steam', - 'svn', - 'teamspeak', - 'things', - 'udp', - 'unreal', - 'ut2004', - 'ventrilo', - 'view-source', - 'webcal', - 'wtai', - 'wyciwyg', - 'xfire', - 'xri', - 'ymsgr' - ]; - - // Process autolinks '' - - - /*eslint max-len:0*/ - var EMAIL_RE = /^<([a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)>/; - var AUTOLINK_RE = /^<([a-zA-Z.\-]{1,25}):([^<>\x00-\x20]*)>/; - - - function autolink(state, silent) { - var tail, linkMatch, emailMatch, url, fullUrl, pos = state.pos; - - if (state.src.charCodeAt(pos) !== 0x3C/* < */) { return false; } - - tail = state.src.slice(pos); - - if (tail.indexOf('>') < 0) { return false; } - - linkMatch = tail.match(AUTOLINK_RE); - - if (linkMatch) { - if (url_schemas.indexOf(linkMatch[1].toLowerCase()) < 0) { return false; } - - url = linkMatch[0].slice(1, -1); - fullUrl = normalizeLink(url); - if (!state.parser.validateLink(url)) { return false; } - - if (!silent) { - state.push({ - type: 'link_open', - href: fullUrl, - level: state.level - }); - state.push({ - type: 'text', - content: url, - level: state.level + 1 - }); - state.push({ type: 'link_close', level: state.level }); - } - - state.pos += linkMatch[0].length; - return true; - } - - emailMatch = tail.match(EMAIL_RE); - - if (emailMatch) { - - url = emailMatch[0].slice(1, -1); - - fullUrl = normalizeLink('mailto:' + url); - if (!state.parser.validateLink(fullUrl)) { return false; } - - if (!silent) { - state.push({ - type: 'link_open', - href: fullUrl, - level: state.level - }); - state.push({ - type: 'text', - content: url, - level: state.level + 1 - }); - state.push({ type: 'link_close', level: state.level }); - } - - state.pos += emailMatch[0].length; - return true; - } - - return false; - } - - // Regexps to match html elements - - function replace$1(regex, options) { - regex = regex.source; - options = options || ''; - - return function self(name, val) { - if (!name) { - return new RegExp(regex, options); - } - val = val.source || val; - regex = regex.replace(name, val); - return self; - }; - } - - - var attr_name = /[a-zA-Z_:][a-zA-Z0-9:._-]*/; - - var unquoted = /[^"'=<>`\x00-\x20]+/; - var single_quoted = /'[^']*'/; - var double_quoted = /"[^"]*"/; - - /*eslint no-spaced-func:0*/ - var attr_value = replace$1(/(?:unquoted|single_quoted|double_quoted)/) - ('unquoted', unquoted) - ('single_quoted', single_quoted) - ('double_quoted', double_quoted) - (); - - var attribute = replace$1(/(?:\s+attr_name(?:\s*=\s*attr_value)?)/) - ('attr_name', attr_name) - ('attr_value', attr_value) - (); - - var open_tag = replace$1(/<[A-Za-z][A-Za-z0-9]*attribute*\s*\/?>/) - ('attribute', attribute) - (); - - var close_tag = /<\/[A-Za-z][A-Za-z0-9]*\s*>/; - var comment = /|/; - var processing = /<[?].*?[?]>/; - var declaration = /]*>/; - var cdata = //; - - var HTML_TAG_RE = replace$1(/^(?:open_tag|close_tag|comment|processing|declaration|cdata)/) - ('open_tag', open_tag) - ('close_tag', close_tag) - ('comment', comment) - ('processing', processing) - ('declaration', declaration) - ('cdata', cdata) - (); - - // Process html tags - - - function isLetter$2(ch) { - /*eslint no-bitwise:0*/ - var lc = ch | 0x20; // to lower case - return (lc >= 0x61/* a */) && (lc <= 0x7a/* z */); - } - - - function htmltag(state, silent) { - var ch, match, max, pos = state.pos; - - if (!state.options.html) { return false; } - - // Check start - max = state.posMax; - if (state.src.charCodeAt(pos) !== 0x3C/* < */ || - pos + 2 >= max) { - return false; - } - - // Quick fail on second char - ch = state.src.charCodeAt(pos + 1); - if (ch !== 0x21/* ! */ && - ch !== 0x3F/* ? */ && - ch !== 0x2F/* / */ && - !isLetter$2(ch)) { - return false; - } - - match = state.src.slice(pos).match(HTML_TAG_RE); - if (!match) { return false; } - - if (!silent) { - state.push({ - type: 'htmltag', - content: state.src.slice(pos, pos + match[0].length), - level: state.level - }); - } - state.pos += match[0].length; - return true; - } - - // Process html entity - {, ¯, ", ... - - - var DIGITAL_RE = /^&#((?:x[a-f0-9]{1,8}|[0-9]{1,8}));/i; - var NAMED_RE = /^&([a-z][a-z0-9]{1,31});/i; - - - function entity(state, silent) { - var ch, code, match, pos = state.pos, max = state.posMax; - - if (state.src.charCodeAt(pos) !== 0x26/* & */) { return false; } - - if (pos + 1 < max) { - ch = state.src.charCodeAt(pos + 1); - - if (ch === 0x23 /* # */) { - match = state.src.slice(pos).match(DIGITAL_RE); - if (match) { - if (!silent) { - code = match[1][0].toLowerCase() === 'x' ? parseInt(match[1].slice(1), 16) : parseInt(match[1], 10); - state.pending += isValidEntityCode(code) ? fromCodePoint(code) : fromCodePoint(0xFFFD); - } - state.pos += match[0].length; - return true; - } - } else { - match = state.src.slice(pos).match(NAMED_RE); - if (match) { - var decoded = decodeEntity(match[1]); - if (match[1] !== decoded) { - if (!silent) { state.pending += decoded; } - state.pos += match[0].length; - return true; - } - } - } - } - - if (!silent) { state.pending += '&'; } - state.pos++; - return true; - } - - /** - * Inline Parser `rules` - */ - - var _rules$2 = [ - [ 'text', text ], - [ 'newline', newline ], - [ 'escape', escape ], - [ 'backticks', backticks ], - [ 'del', del ], - [ 'ins', ins ], - [ 'mark', mark ], - [ 'emphasis', emphasis ], - [ 'sub', sub ], - [ 'sup', sup ], - [ 'links', links ], - [ 'footnote_inline', footnote_inline ], - [ 'footnote_ref', footnote_ref ], - [ 'autolink', autolink ], - [ 'htmltag', htmltag ], - [ 'entity', entity ] - ]; - - /** - * Inline Parser class. Note that link validation is stricter - * in Remarkable than what is specified by CommonMark. If you - * want to change this you can use a custom validator. - * - * @api private - */ - - function ParserInline() { - this.ruler = new Ruler(); - for (var i = 0; i < _rules$2.length; i++) { - this.ruler.push(_rules$2[i][0], _rules$2[i][1]); - } - - // Can be overridden with a custom validator - this.validateLink = validateLink; - } - - /** - * Skip a single token by running all rules in validation mode. - * Returns `true` if any rule reports success. - * - * @param {Object} `state` - * @api privage - */ - - ParserInline.prototype.skipToken = function (state) { - var rules = this.ruler.getRules(''); - var len = rules.length; - var pos = state.pos; - var i, cached_pos; - - if ((cached_pos = state.cacheGet(pos)) > 0) { - state.pos = cached_pos; - return; - } - - for (i = 0; i < len; i++) { - if (rules[i](state, true)) { - state.cacheSet(pos, state.pos); - return; - } - } - - state.pos++; - state.cacheSet(pos, state.pos); - }; - - /** - * Generate tokens for the given input range. - * - * @param {Object} `state` - * @api private - */ - - ParserInline.prototype.tokenize = function (state) { - var rules = this.ruler.getRules(''); - var len = rules.length; - var end = state.posMax; - var ok, i; - - while (state.pos < end) { - - // Try all possible rules. - // On success, the rule should: - // - // - update `state.pos` - // - update `state.tokens` - // - return true - for (i = 0; i < len; i++) { - ok = rules[i](state, false); - - if (ok) { - break; - } - } - - if (ok) { - if (state.pos >= end) { break; } - continue; - } - - state.pending += state.src[state.pos++]; - } - - if (state.pending) { - state.pushPending(); - } - }; - - /** - * Parse the given input string. - * - * @param {String} `str` - * @param {Object} `options` - * @param {Object} `env` - * @param {Array} `outTokens` - * @api private - */ - - ParserInline.prototype.parse = function (str, options, env, outTokens) { - var state = new StateInline(str, this, options, env, outTokens); - this.tokenize(state); - }; - - /** - * Validate the given `url` by checking for bad protocols. - * - * @param {String} `url` - * @return {Boolean} - */ - - function validateLink(url) { - var BAD_PROTOCOLS = [ 'vbscript', 'javascript', 'file', 'data' ]; - var str = url.trim().toLowerCase(); - // Care about digital entities "javascript:alert(1)" - str = replaceEntities(str); - if (str.indexOf(':') !== -1 && BAD_PROTOCOLS.indexOf(str.split(':')[0]) !== -1) { - return false; - } - return true; - } - - // Remarkable default options - - var defaultConfig = { - options: { - html: false, // Enable HTML tags in source - xhtmlOut: false, // Use '/' to close single tags (
    ) - breaks: false, // Convert '\n' in paragraphs into
    - langPrefix: 'language-', // CSS language prefix for fenced blocks - linkTarget: '', // set target to open link in - - // Enable some language-neutral replacements + quotes beautification - typographer: false, - - // Double + single quotes replacement pairs, when typographer enabled, - // and smartquotes on. Set doubles to '«»' for Russian, '„“' for German. - quotes: '“”‘’', - - // Highlighter function. Should return escaped HTML, - // or '' if input not changed - // - // function (/*str, lang*/) { return ''; } - // - highlight: null, - - maxNesting: 20 // Internal protection, recursion limit - }, - - components: { - - core: { - rules: [ - 'block', - 'inline', - 'references', - 'replacements', - 'smartquotes', - 'references', - 'abbr2', - 'footnote_tail' - ] - }, - - block: { - rules: [ - 'blockquote', - 'code', - 'fences', - 'footnote', - 'heading', - 'hr', - 'htmlblock', - 'lheading', - 'list', - 'paragraph', - 'table' - ] - }, - - inline: { - rules: [ - 'autolink', - 'backticks', - 'del', - 'emphasis', - 'entity', - 'escape', - 'footnote_ref', - 'htmltag', - 'links', - 'newline', - 'text' - ] - } - } - }; - - // Remarkable default options - - var fullConfig = { - options: { - html: false, // Enable HTML tags in source - xhtmlOut: false, // Use '/' to close single tags (
    ) - breaks: false, // Convert '\n' in paragraphs into
    - langPrefix: 'language-', // CSS language prefix for fenced blocks - linkTarget: '', // set target to open link in - - // Enable some language-neutral replacements + quotes beautification - typographer: false, - - // Double + single quotes replacement pairs, when typographer enabled, - // and smartquotes on. Set doubles to '«»' for Russian, '„“' for German. - quotes: '“”‘’', - - // Highlighter function. Should return escaped HTML, - // or '' if input not changed - // - // function (/*str, lang*/) { return ''; } - // - highlight: null, - - maxNesting: 20 // Internal protection, recursion limit - }, - - components: { - // Don't restrict core/block/inline rules - core: {}, - block: {}, - inline: {} - } - }; - - // Commonmark default options - - var commonmarkConfig = { - options: { - html: true, // Enable HTML tags in source - xhtmlOut: true, // Use '/' to close single tags (
    ) - breaks: false, // Convert '\n' in paragraphs into
    - langPrefix: 'language-', // CSS language prefix for fenced blocks - linkTarget: '', // set target to open link in - - // Enable some language-neutral replacements + quotes beautification - typographer: false, - - // Double + single quotes replacement pairs, when typographer enabled, - // and smartquotes on. Set doubles to '«»' for Russian, '„“' for German. - quotes: '“”‘’', - - // Highlighter function. Should return escaped HTML, - // or '' if input not changed - // - // function (/*str, lang*/) { return ''; } - // - highlight: null, - - maxNesting: 20 // Internal protection, recursion limit - }, - - components: { - - core: { - rules: [ - 'block', - 'inline', - 'references', - 'abbr2' - ] - }, - - block: { - rules: [ - 'blockquote', - 'code', - 'fences', - 'heading', - 'hr', - 'htmlblock', - 'lheading', - 'list', - 'paragraph' - ] - }, - - inline: { - rules: [ - 'autolink', - 'backticks', - 'emphasis', - 'entity', - 'escape', - 'htmltag', - 'links', - 'newline', - 'text' - ] - } - } - }; - - /** - * Preset configs - */ - - var config = { - 'default': defaultConfig, - 'full': fullConfig, - 'commonmark': commonmarkConfig - }; - - /** - * The `StateCore` class manages state. - * - * @param {Object} `instance` Remarkable instance - * @param {String} `str` Markdown string - * @param {Object} `env` - */ - - function StateCore(instance, str, env) { - this.src = str; - this.env = env; - this.options = instance.options; - this.tokens = []; - this.inlineMode = false; - - this.inline = instance.inline; - this.block = instance.block; - this.renderer = instance.renderer; - this.typographer = instance.typographer; - } - - /** - * The main `Remarkable` class. Create an instance of - * `Remarkable` with a `preset` and/or `options`. - * - * @param {String} `preset` If no preset is given, `default` is used. - * @param {Object} `options` - */ - - function Remarkable(preset, options) { - if (typeof preset !== 'string') { - options = preset; - preset = 'default'; - } - - if (options && options.linkify != null) { - console.warn( - 'linkify option is removed. Use linkify plugin instead:\n\n' + - 'import Remarkable from \'remarkable\';\n' + - 'import linkify from \'remarkable/linkify\';\n' + - 'new Remarkable().use(linkify)\n' - ); - } - - this.inline = new ParserInline(); - this.block = new ParserBlock(); - this.core = new Core(); - this.renderer = new Renderer(); - this.ruler = new Ruler(); - - this.options = {}; - this.configure(config[preset]); - this.set(options || {}); - } - - /** - * Set options as an alternative to passing them - * to the constructor. - * - * ```js - * md.set({typographer: true}); - * ``` - * @param {Object} `options` - * @api public - */ - - Remarkable.prototype.set = function (options) { - assign(this.options, options); - }; - - /** - * Batch loader for components rules states, and options - * - * @param {Object} `presets` - */ - - Remarkable.prototype.configure = function (presets) { - var self = this; - - if (!presets) { throw new Error('Wrong `remarkable` preset, check name/content'); } - if (presets.options) { self.set(presets.options); } - if (presets.components) { - Object.keys(presets.components).forEach(function (name) { - if (presets.components[name].rules) { - self[name].ruler.enable(presets.components[name].rules, true); - } - }); - } - }; - - /** - * Use a plugin. - * - * ```js - * var md = new Remarkable(); - * - * md.use(plugin1) - * .use(plugin2, opts) - * .use(plugin3); - * ``` - * - * @param {Function} `plugin` - * @param {Object} `options` - * @return {Object} `Remarkable` for chaining - */ - - Remarkable.prototype.use = function (plugin, options) { - plugin(this, options); - return this; - }; - - - /** - * Parse the input `string` and return a tokens array. - * Modifies `env` with definitions data. - * - * @param {String} `string` - * @param {Object} `env` - * @return {Array} Array of tokens - */ - - Remarkable.prototype.parse = function (str, env) { - var state = new StateCore(this, str, env); - this.core.process(state); - return state.tokens; - }; - - /** - * The main `.render()` method that does all the magic :) - * - * @param {String} `string` - * @param {Object} `env` - * @return {String} Rendered HTML. - */ - - Remarkable.prototype.render = function (str, env) { - env = env || {}; - return this.renderer.render(this.parse(str, env), this.options, env); - }; - - /** - * Parse the given content `string` as a single string. - * - * @param {String} `string` - * @param {Object} `env` - * @return {Array} Array of tokens - */ - - Remarkable.prototype.parseInline = function (str, env) { - var state = new StateCore(this, str, env); - state.inlineMode = true; - this.core.process(state); - return state.tokens; - }; - - /** - * Render a single content `string`, without wrapping it - * to paragraphs - * - * @param {String} `str` - * @param {Object} `env` - * @return {String} - */ - - Remarkable.prototype.renderInline = function (str, env) { - env = env || {}; - return this.renderer.render(this.parseInline(str, env), this.options, env); - }; - - var index_browser = /*#__PURE__*/Object.freeze({ - __proto__: null, - Remarkable: Remarkable, - utils: utils - }); - - var base = createCommonjsModule(function (module, exports) { - - exports.__esModule = true; - exports.getId = getId; - exports.noop = noop; - exports.walkTree = walkTree; - exports.arrayFrom = arrayFrom; - exports.flatMap = flatMap; - exports.addClass = addClass; - exports.childSelector = childSelector; - const uniqId = Math.random().toString(36).slice(2, 8); - let globalIndex = 0; - - function getId() { - globalIndex += 1; - return `mm-${uniqId}-${globalIndex}`; - } - - function noop() {// noop - } - - function walkTree(tree, callback, key = 'c') { - const walk = (item, parent) => callback(item, () => { - var _item$key; - - (_item$key = item[key]) == null ? void 0 : _item$key.forEach(child => { - walk(child, item); - }); - }, parent); - - walk(tree); - } - - function arrayFrom(arrayLike) { - if (Array.from) return Array.from(arrayLike); - const array = []; - - for (let i = 0; i < arrayLike.length; i += 1) { - array.push(arrayLike[i]); - } - - return array; - } - - function flatMap(arrayLike, callback) { - if (arrayLike.flatMap) return arrayLike.flatMap(callback); - const array = []; - - for (let i = 0; i < arrayLike.length; i += 1) { - const result = callback(arrayLike[i], i, arrayLike); - if (Array.isArray(result)) array.push(...result);else array.push(result); - } - - return array; - } - - function addClass(className, ...rest) { - const classList = (className || '').split(' ').filter(Boolean); - rest.forEach(item => { - if (item && classList.indexOf(item) < 0) classList.push(item); - }); - return classList.join(' '); - } - - function childSelector(filter) { - if (typeof filter === 'string') { - const tagName = filter; - - filter = el => el.tagName === tagName; - } - - const filterFn = filter; - return function selector() { - let nodes = arrayFrom(this.childNodes); - if (filterFn) nodes = nodes.filter(node => filterFn(node)); - return nodes; - }; - } - }); - - var html = createCommonjsModule(function (module, exports) { - - exports.__esModule = true; - exports.escapeHtml = escapeHtml; - exports.escapeScript = escapeScript; - exports.htmlOpen = htmlOpen; - exports.htmlClose = htmlClose; - exports.wrapHtml = wrapHtml; - exports.wrapStyle = wrapStyle; - - function escapeHtml(html) { - return html.replace(/[&<"]/g, m => ({ - '&': '&', - '<': '<', - '"': '"' - })[m]); - } - - function escapeScript(content) { - return content.replace(/<(\/script>)/g, '\\x3c$2'); - } - - function htmlOpen(tagName, attrs) { - const attrStr = attrs ? Object.entries(attrs).map(([key, value]) => { - if (value == null || value === false) return; - key = ` ${escapeHtml(key)}`; - if (value === true) return key; - return `${key}="${escapeHtml(value)}"`; - }).filter(Boolean).join('') : ''; - return `<${tagName}${attrStr}>`; - } - - function htmlClose(tagName) { - return ``; - } - - function wrapHtml(tagName, content, attrs) { - if (content == null) return htmlOpen(tagName, attrs); - return htmlOpen(tagName, attrs) + (content || '') + htmlClose(tagName); - } - - function wrapStyle(text, style) { - if (style.code) text = wrapHtml('code', text); - if (style.del) text = wrapHtml('del', text); - if (style.em) text = wrapHtml('em', text); - if (style.strong) text = wrapHtml('strong', text); - return text; - } - }); - - var loader = createCommonjsModule(function (module, exports) { - - exports.__esModule = true; - exports.buildCode = buildCode; - exports.memoize = memoize; - exports.loadJS = loadJS; - exports.loadCSS = loadCSS; - exports.initializePlugins = initializePlugins; - exports.persistJS = persistJS; - exports.persistCSS = persistCSS; - - - - function buildCode(fn, ...args) { - const params = args.map(arg => { - if (typeof arg === 'function') return arg.toString(); - return JSON.stringify(arg != null ? arg : null); - }).join(','); - return `(${fn.toString()})(${params})`; - } - - function memoize(fn) { - const cache = {}; - return function memoized(...args) { - const key = `${args[0]}`; - let data = cache[key]; - - if (!data) { - data = { - value: fn(...args) - }; - cache[key] = data; - } - - return data.value; - }; - } - - function createElement(tagName, props, attrs) { - const el = document.createElement(tagName); - - if (props) { - Object.entries(props).forEach(([key, value]) => { - el[key] = value; - }); - } - - if (attrs) { - Object.entries(attrs).forEach(([key, value]) => { - el.setAttribute(key, value); - }); - } - - return el; - } - - const memoizedPreloadJS = memoize(url => { - document.head.append(createElement('link', { - rel: 'preload', - as: 'script', - href: url - })); - }); - - function loadJSItem(item, context) { - if (item.type === 'script') { - return new Promise((resolve, reject) => { - document.head.append(createElement('script', Object.assign(Object.assign({}, item.data), {}, { - onload: resolve, - onerror: reject - }))); - }); - } else if (item.type === 'iife') { - const { - fn, - getParams - } = item.data; - fn(...((getParams == null ? void 0 : getParams(context)) || [])); - } - } - - function loadCSSItem(item) { - if (item.type === 'style') { - document.head.append(createElement('style', { - textContent: item.data - })); - } else if (item.type === 'stylesheet') { - document.head.append(createElement('link', Object.assign({ - rel: 'stylesheet' - }, item.data))); - } - } - - async function loadJS(items, options) { - const needPreload = items.filter(item => item.type === 'script'); - if (needPreload.length > 1) needPreload.forEach(item => memoizedPreloadJS(item.data.src)); - - for (const item of items) { - await loadJSItem(item, options); - } - } - - function loadCSS(items) { - for (const item of items) { - loadCSSItem(item); - } - } - - async function initializePlugins(Markmap, plugins, options) { - options = Object.assign({}, options); - await Promise.all(plugins.map(plugin => { - loadCSS(plugin.styles); - return loadJS(plugin.scripts, options); - })); - - for (const { - initialize - } of plugins) { - if (initialize) initialize(Markmap, options); - } - } - - function persistJS(items, context) { - return items.map(item => { - if (item.type === 'script') return (0, html.wrapHtml)('script', '', item.data); - - if (item.type === 'iife') { - const { - fn, - getParams - } = item.data; - return (0, html.wrapHtml)('script', (0, html.escapeScript)(buildCode(fn, ...((getParams == null ? void 0 : getParams(context)) || [])))); - } - }); - } - - function persistCSS(items) { - return items.map(item => { - if (item.type === 'stylesheet') { - return (0, html.wrapHtml)('link', null, Object.assign({ - rel: 'stylesheet' - }, item.data)); - } - /* else if (item.type === 'style') */ - - - return (0, html.wrapHtml)('style', item.data); - }); - } - }); - - var util = createCommonjsModule(function (module, exports) { - - exports.__esModule = true; - - - - Object.keys(base).forEach(function (key) { - if (key === "default" || key === "__esModule") return; - exports[key] = base[key]; - }); - - - - Object.keys(html).forEach(function (key) { - if (key === "default" || key === "__esModule") return; - exports[key] = html[key]; - }); - - - - Object.keys(loader).forEach(function (key) { - if (key === "default" || key === "__esModule") return; - exports[key] = loader[key]; - }); - }); - - var transform_1 = createCommonjsModule(function (module, exports) { - - exports.__esModule = true; - exports.buildTree = buildTree; - exports.transform = transform; - - - - - - const md = new index_browser.Remarkable(); - md.block.ruler.enable(['deflist']); - - function extractInline(token) { - const html = []; - let style = {}; - - for (const child of token.children) { - if (child.type === 'text') { - html.push((0, util.wrapStyle)((0, util.escapeHtml)(child.content), style)); - } else if (child.type === 'code') { - html.push((0, util.wrapHtml)('code', (0, util.wrapStyle)((0, util.escapeHtml)(child.content), style))); - } else if (child.type === 'softbreak') { - html.push('
    '); - } else if (child.type.endsWith('_open')) { - const type = child.type.slice(0, -5); - - if (type === 'link') { - html.push((0, util.htmlOpen)('a', { - href: child.href, - title: child.title, - target: '_blank', - rel: 'noopener noreferrer' - })); - } else { - style = Object.assign(Object.assign({}, style), {}, { - [type]: true - }); - } - } else if (child.type.endsWith('_close')) { - const type = child.type.slice(0, -6); - - if (type === 'link') { - html.push((0, util.htmlClose)('a')); - } else { - style = Object.assign(Object.assign({}, style), {}, { - [type]: false - }); - } - } - } - - return html.join(''); - } - - function cleanNode(node, depth = 0) { - if (node.t === 'heading') { - // drop all paragraphs - node.c = node.c.filter(item => item.t !== 'paragraph'); - } else if (node.t === 'list_item') { - var _node$p; - - // keep first paragraph as content of list_item, drop others - node.c = node.c.filter(item => { - if (['paragraph', 'fence'].includes(item.t)) { - if (!node.v) node.v = item.v; - return false; - } - - return true; - }); - - if (((_node$p = node.p) == null ? void 0 : _node$p.index) != null) { - node.v = `${node.p.index}. ${node.v}`; - } - } else if (node.t === 'ordered_list') { - var _node$p$start, _node$p2; - - let index = (_node$p$start = (_node$p2 = node.p) == null ? void 0 : _node$p2.start) != null ? _node$p$start : 1; - node.c.forEach(item => { - if (item.t === 'list_item') { - item.p = Object.assign(Object.assign({}, item.p), {}, { - index: index - }); - index += 1; - } - }); - } - - if (node.c.length === 0) { - delete node.c; - } else { - if (node.c.length === 1 && !node.c[0].v) { - node.c = node.c[0].c; - } - - node.c.forEach(child => cleanNode(child, depth + 1)); - } - - node.d = depth; - delete node.p; - } - - function buildTree(tokens) { - // TODO deal with
    - const root = { - t: 'root', - d: 0, - v: '', - c: [] - }; - const stack = [root]; - let depth = 0; - - for (const token of tokens) { - let current = stack[stack.length - 1]; - - if (token.type.endsWith('_open')) { - const type = token.type.slice(0, -5); - const payload = {}; - - if (type === 'heading') { - depth = token.hLevel; - - while (((_current = current) == null ? void 0 : _current.d) >= depth) { - var _current; - - stack.pop(); - current = stack[stack.length - 1]; - } - } else { - var _current2; - - depth = Math.max(depth, ((_current2 = current) == null ? void 0 : _current2.d) || 0) + 1; - - if (type === 'ordered_list') { - payload.start = token.order; - } - } - - const item = { - t: type, - d: depth, - p: payload, - v: '', - c: [] - }; - current.c.push(item); - stack.push(item); - } else if (!current) { - continue; - } else if (token.type === `${current.t}_close`) { - if (current.t === 'heading') { - depth = current.d; - } else { - stack.pop(); - depth = 0; - } - } else if (token.type === 'inline') { - current.v = `${current.v || ''}${extractInline(token)}`; - } else if (token.type === 'fence') { - current.c.push({ - t: token.type, - d: depth + 1, - v: `
    ${(0, util.escapeHtml)(token.content)}
    `, - c: [] - }); - } - } - - return root; - } - - function transform(content) { - var _root$c; - - const tokens = md.parse(content || '', {}); - let root = buildTree(tokens); - cleanNode(root); - if (((_root$c = root.c) == null ? void 0 : _root$c.length) === 1) root = root.c[0]; - return root; - } - }); - - var transform = /*@__PURE__*/unwrapExports(transform_1); - - return transform; - -}))); diff --git a/www/code/markmap/markmap-lib.view.bundle.js b/www/code/markmap/markmap-lib.view.bundle.js deleted file mode 100644 index 0663de23c..000000000 --- a/www/code/markmap/markmap-lib.view.bundle.js +++ /dev/null @@ -1,19876 +0,0 @@ -(function (global, factory) { - typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : - typeof define === 'function' && define.amd ? define(factory) : - (global = global || self, global.view = factory()); -}(this, (function () { 'use strict'; - - function unwrapExports (x) { - return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x; - } - - function createCommonjsModule(fn, basedir, module) { - return module = { - path: basedir, - exports: {}, - require: function (path, base) { - return commonjsRequire(path, (base === undefined || base === null) ? module.path : base); - } - }, fn(module, module.exports), module.exports; - } - - function commonjsRequire () { - throw new Error('Dynamic requires are not currently supported by @rollup/plugin-commonjs'); - } - - var _typeof_1 = createCommonjsModule(function (module) { - function _typeof(obj) { - "@babel/helpers - typeof"; - - if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { - module.exports = _typeof = function _typeof(obj) { - return typeof obj; - }; - } else { - module.exports = _typeof = function _typeof(obj) { - return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; - }; - } - - return _typeof(obj); - } - - module.exports = _typeof; - }); - - var interopRequireWildcard = createCommonjsModule(function (module) { - function _getRequireWildcardCache() { - if (typeof WeakMap !== "function") return null; - var cache = new WeakMap(); - - _getRequireWildcardCache = function _getRequireWildcardCache() { - return cache; - }; - - return cache; - } - - function _interopRequireWildcard(obj) { - if (obj && obj.__esModule) { - return obj; - } - - if (obj === null || _typeof_1(obj) !== "object" && typeof obj !== "function") { - return { - "default": obj - }; - } - - var cache = _getRequireWildcardCache(); - - if (cache && cache.has(obj)) { - return cache.get(obj); - } - - var newObj = {}; - var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; - - for (var key in obj) { - if (Object.prototype.hasOwnProperty.call(obj, key)) { - var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; - - if (desc && (desc.get || desc.set)) { - Object.defineProperty(newObj, key, desc); - } else { - newObj[key] = obj[key]; - } - } - } - - newObj["default"] = obj; - - if (cache) { - cache.set(obj, newObj); - } - - return newObj; - } - - module.exports = _interopRequireWildcard; - }); - - var version = "5.16.0"; - - function ascending(a, b) { - return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN; - } - - function bisector(compare) { - if (compare.length === 1) compare = ascendingComparator(compare); - return { - left: function(a, x, lo, hi) { - if (lo == null) lo = 0; - if (hi == null) hi = a.length; - while (lo < hi) { - var mid = lo + hi >>> 1; - if (compare(a[mid], x) < 0) lo = mid + 1; - else hi = mid; - } - return lo; - }, - right: function(a, x, lo, hi) { - if (lo == null) lo = 0; - if (hi == null) hi = a.length; - while (lo < hi) { - var mid = lo + hi >>> 1; - if (compare(a[mid], x) > 0) hi = mid; - else lo = mid + 1; - } - return lo; - } - }; - } - - function ascendingComparator(f) { - return function(d, x) { - return ascending(f(d), x); - }; - } - - var ascendingBisect = bisector(ascending); - var bisectRight = ascendingBisect.right; - var bisectLeft = ascendingBisect.left; - - function pairs(array, f) { - if (f == null) f = pair; - var i = 0, n = array.length - 1, p = array[0], pairs = new Array(n < 0 ? 0 : n); - while (i < n) pairs[i] = f(p, p = array[++i]); - return pairs; - } - - function pair(a, b) { - return [a, b]; - } - - function cross(values0, values1, reduce) { - var n0 = values0.length, - n1 = values1.length, - values = new Array(n0 * n1), - i0, - i1, - i, - value0; - - if (reduce == null) reduce = pair; - - for (i0 = i = 0; i0 < n0; ++i0) { - for (value0 = values0[i0], i1 = 0; i1 < n1; ++i1, ++i) { - values[i] = reduce(value0, values1[i1]); - } - } - - return values; - } - - function descending(a, b) { - return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN; - } - - function number(x) { - return x === null ? NaN : +x; - } - - function variance(values, valueof) { - var n = values.length, - m = 0, - i = -1, - mean = 0, - value, - delta, - sum = 0; - - if (valueof == null) { - while (++i < n) { - if (!isNaN(value = number(values[i]))) { - delta = value - mean; - mean += delta / ++m; - sum += delta * (value - mean); - } - } - } - - else { - while (++i < n) { - if (!isNaN(value = number(valueof(values[i], i, values)))) { - delta = value - mean; - mean += delta / ++m; - sum += delta * (value - mean); - } - } - } - - if (m > 1) return sum / (m - 1); - } - - function deviation(array, f) { - var v = variance(array, f); - return v ? Math.sqrt(v) : v; - } - - function extent(values, valueof) { - var n = values.length, - i = -1, - value, - min, - max; - - if (valueof == null) { - while (++i < n) { // Find the first comparable value. - if ((value = values[i]) != null && value >= value) { - min = max = value; - while (++i < n) { // Compare the remaining values. - if ((value = values[i]) != null) { - if (min > value) min = value; - if (max < value) max = value; - } - } - } - } - } - - else { - while (++i < n) { // Find the first comparable value. - if ((value = valueof(values[i], i, values)) != null && value >= value) { - min = max = value; - while (++i < n) { // Compare the remaining values. - if ((value = valueof(values[i], i, values)) != null) { - if (min > value) min = value; - if (max < value) max = value; - } - } - } - } - } - - return [min, max]; - } - - var array = Array.prototype; - - var slice = array.slice; - var map = array.map; - - function constant(x) { - return function() { - return x; - }; - } - - function identity(x) { - return x; - } - - function sequence(start, stop, step) { - start = +start, stop = +stop, step = (n = arguments.length) < 2 ? (stop = start, start = 0, 1) : n < 3 ? 1 : +step; - - var i = -1, - n = Math.max(0, Math.ceil((stop - start) / step)) | 0, - range = new Array(n); - - while (++i < n) { - range[i] = start + i * step; - } - - return range; - } - - var e10 = Math.sqrt(50), - e5 = Math.sqrt(10), - e2 = Math.sqrt(2); - - function ticks(start, stop, count) { - var reverse, - i = -1, - n, - ticks, - step; - - stop = +stop, start = +start, count = +count; - if (start === stop && count > 0) return [start]; - if (reverse = stop < start) n = start, start = stop, stop = n; - if ((step = tickIncrement(start, stop, count)) === 0 || !isFinite(step)) return []; - - if (step > 0) { - start = Math.ceil(start / step); - stop = Math.floor(stop / step); - ticks = new Array(n = Math.ceil(stop - start + 1)); - while (++i < n) ticks[i] = (start + i) * step; - } else { - start = Math.floor(start * step); - stop = Math.ceil(stop * step); - ticks = new Array(n = Math.ceil(start - stop + 1)); - while (++i < n) ticks[i] = (start - i) / step; - } - - if (reverse) ticks.reverse(); - - return ticks; - } - - function tickIncrement(start, stop, count) { - var step = (stop - start) / Math.max(0, count), - power = Math.floor(Math.log(step) / Math.LN10), - error = step / Math.pow(10, power); - return power >= 0 - ? (error >= e10 ? 10 : error >= e5 ? 5 : error >= e2 ? 2 : 1) * Math.pow(10, power) - : -Math.pow(10, -power) / (error >= e10 ? 10 : error >= e5 ? 5 : error >= e2 ? 2 : 1); - } - - function tickStep(start, stop, count) { - var step0 = Math.abs(stop - start) / Math.max(0, count), - step1 = Math.pow(10, Math.floor(Math.log(step0) / Math.LN10)), - error = step0 / step1; - if (error >= e10) step1 *= 10; - else if (error >= e5) step1 *= 5; - else if (error >= e2) step1 *= 2; - return stop < start ? -step1 : step1; - } - - function thresholdSturges(values) { - return Math.ceil(Math.log(values.length) / Math.LN2) + 1; - } - - function histogram() { - var value = identity, - domain = extent, - threshold = thresholdSturges; - - function histogram(data) { - var i, - n = data.length, - x, - values = new Array(n); - - for (i = 0; i < n; ++i) { - values[i] = value(data[i], i, data); - } - - var xz = domain(values), - x0 = xz[0], - x1 = xz[1], - tz = threshold(values, x0, x1); - - // Convert number of thresholds into uniform thresholds. - if (!Array.isArray(tz)) { - tz = tickStep(x0, x1, tz); - tz = sequence(Math.ceil(x0 / tz) * tz, x1, tz); // exclusive - } - - // Remove any thresholds outside the domain. - var m = tz.length; - while (tz[0] <= x0) tz.shift(), --m; - while (tz[m - 1] > x1) tz.pop(), --m; - - var bins = new Array(m + 1), - bin; - - // Initialize bins. - for (i = 0; i <= m; ++i) { - bin = bins[i] = []; - bin.x0 = i > 0 ? tz[i - 1] : x0; - bin.x1 = i < m ? tz[i] : x1; - } - - // Assign data to bins by value, ignoring any outside the domain. - for (i = 0; i < n; ++i) { - x = values[i]; - if (x0 <= x && x <= x1) { - bins[bisectRight(tz, x, 0, m)].push(data[i]); - } - } - - return bins; - } - - histogram.value = function(_) { - return arguments.length ? (value = typeof _ === "function" ? _ : constant(_), histogram) : value; - }; - - histogram.domain = function(_) { - return arguments.length ? (domain = typeof _ === "function" ? _ : constant([_[0], _[1]]), histogram) : domain; - }; - - histogram.thresholds = function(_) { - return arguments.length ? (threshold = typeof _ === "function" ? _ : Array.isArray(_) ? constant(slice.call(_)) : constant(_), histogram) : threshold; - }; - - return histogram; - } - - function threshold(values, p, valueof) { - if (valueof == null) valueof = number; - if (!(n = values.length)) return; - if ((p = +p) <= 0 || n < 2) return +valueof(values[0], 0, values); - if (p >= 1) return +valueof(values[n - 1], n - 1, values); - var n, - i = (n - 1) * p, - i0 = Math.floor(i), - value0 = +valueof(values[i0], i0, values), - value1 = +valueof(values[i0 + 1], i0 + 1, values); - return value0 + (value1 - value0) * (i - i0); - } - - function freedmanDiaconis(values, min, max) { - values = map.call(values, number).sort(ascending); - return Math.ceil((max - min) / (2 * (threshold(values, 0.75) - threshold(values, 0.25)) * Math.pow(values.length, -1 / 3))); - } - - function scott(values, min, max) { - return Math.ceil((max - min) / (3.5 * deviation(values) * Math.pow(values.length, -1 / 3))); - } - - function max(values, valueof) { - var n = values.length, - i = -1, - value, - max; - - if (valueof == null) { - while (++i < n) { // Find the first comparable value. - if ((value = values[i]) != null && value >= value) { - max = value; - while (++i < n) { // Compare the remaining values. - if ((value = values[i]) != null && value > max) { - max = value; - } - } - } - } - } - - else { - while (++i < n) { // Find the first comparable value. - if ((value = valueof(values[i], i, values)) != null && value >= value) { - max = value; - while (++i < n) { // Compare the remaining values. - if ((value = valueof(values[i], i, values)) != null && value > max) { - max = value; - } - } - } - } - } - - return max; - } - - function mean(values, valueof) { - var n = values.length, - m = n, - i = -1, - value, - sum = 0; - - if (valueof == null) { - while (++i < n) { - if (!isNaN(value = number(values[i]))) sum += value; - else --m; - } - } - - else { - while (++i < n) { - if (!isNaN(value = number(valueof(values[i], i, values)))) sum += value; - else --m; - } - } - - if (m) return sum / m; - } - - function median(values, valueof) { - var n = values.length, - i = -1, - value, - numbers = []; - - if (valueof == null) { - while (++i < n) { - if (!isNaN(value = number(values[i]))) { - numbers.push(value); - } - } - } - - else { - while (++i < n) { - if (!isNaN(value = number(valueof(values[i], i, values)))) { - numbers.push(value); - } - } - } - - return threshold(numbers.sort(ascending), 0.5); - } - - function merge(arrays) { - var n = arrays.length, - m, - i = -1, - j = 0, - merged, - array; - - while (++i < n) j += arrays[i].length; - merged = new Array(j); - - while (--n >= 0) { - array = arrays[n]; - m = array.length; - while (--m >= 0) { - merged[--j] = array[m]; - } - } - - return merged; - } - - function min(values, valueof) { - var n = values.length, - i = -1, - value, - min; - - if (valueof == null) { - while (++i < n) { // Find the first comparable value. - if ((value = values[i]) != null && value >= value) { - min = value; - while (++i < n) { // Compare the remaining values. - if ((value = values[i]) != null && min > value) { - min = value; - } - } - } - } - } - - else { - while (++i < n) { // Find the first comparable value. - if ((value = valueof(values[i], i, values)) != null && value >= value) { - min = value; - while (++i < n) { // Compare the remaining values. - if ((value = valueof(values[i], i, values)) != null && min > value) { - min = value; - } - } - } - } - } - - return min; - } - - function permute(array, indexes) { - var i = indexes.length, permutes = new Array(i); - while (i--) permutes[i] = array[indexes[i]]; - return permutes; - } - - function scan(values, compare) { - if (!(n = values.length)) return; - var n, - i = 0, - j = 0, - xi, - xj = values[j]; - - if (compare == null) compare = ascending; - - while (++i < n) { - if (compare(xi = values[i], xj) < 0 || compare(xj, xj) !== 0) { - xj = xi, j = i; - } - } - - if (compare(xj, xj) === 0) return j; - } - - function shuffle(array, i0, i1) { - var m = (i1 == null ? array.length : i1) - (i0 = i0 == null ? 0 : +i0), - t, - i; - - while (m) { - i = Math.random() * m-- | 0; - t = array[m + i0]; - array[m + i0] = array[i + i0]; - array[i + i0] = t; - } - - return array; - } - - function sum(values, valueof) { - var n = values.length, - i = -1, - value, - sum = 0; - - if (valueof == null) { - while (++i < n) { - if (value = +values[i]) sum += value; // Note: zero and null are equivalent. - } - } - - else { - while (++i < n) { - if (value = +valueof(values[i], i, values)) sum += value; - } - } - - return sum; - } - - function transpose(matrix) { - if (!(n = matrix.length)) return []; - for (var i = -1, m = min(matrix, length), transpose = new Array(m); ++i < m;) { - for (var j = -1, n, row = transpose[i] = new Array(n); ++j < n;) { - row[j] = matrix[j][i]; - } - } - return transpose; - } - - function length(d) { - return d.length; - } - - function zip() { - return transpose(arguments); - } - - var slice$1 = Array.prototype.slice; - - function identity$1(x) { - return x; - } - - var top = 1, - right = 2, - bottom = 3, - left = 4, - epsilon = 1e-6; - - function translateX(x) { - return "translate(" + (x + 0.5) + ",0)"; - } - - function translateY(y) { - return "translate(0," + (y + 0.5) + ")"; - } - - function number$1(scale) { - return function(d) { - return +scale(d); - }; - } - - function center(scale) { - var offset = Math.max(0, scale.bandwidth() - 1) / 2; // Adjust for 0.5px offset. - if (scale.round()) offset = Math.round(offset); - return function(d) { - return +scale(d) + offset; - }; - } - - function entering() { - return !this.__axis; - } - - function axis(orient, scale) { - var tickArguments = [], - tickValues = null, - tickFormat = null, - tickSizeInner = 6, - tickSizeOuter = 6, - tickPadding = 3, - k = orient === top || orient === left ? -1 : 1, - x = orient === left || orient === right ? "x" : "y", - transform = orient === top || orient === bottom ? translateX : translateY; - - function axis(context) { - var values = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments) : scale.domain()) : tickValues, - format = tickFormat == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments) : identity$1) : tickFormat, - spacing = Math.max(tickSizeInner, 0) + tickPadding, - range = scale.range(), - range0 = +range[0] + 0.5, - range1 = +range[range.length - 1] + 0.5, - position = (scale.bandwidth ? center : number$1)(scale.copy()), - selection = context.selection ? context.selection() : context, - path = selection.selectAll(".domain").data([null]), - tick = selection.selectAll(".tick").data(values, scale).order(), - tickExit = tick.exit(), - tickEnter = tick.enter().append("g").attr("class", "tick"), - line = tick.select("line"), - text = tick.select("text"); - - path = path.merge(path.enter().insert("path", ".tick") - .attr("class", "domain") - .attr("stroke", "currentColor")); - - tick = tick.merge(tickEnter); - - line = line.merge(tickEnter.append("line") - .attr("stroke", "currentColor") - .attr(x + "2", k * tickSizeInner)); - - text = text.merge(tickEnter.append("text") - .attr("fill", "currentColor") - .attr(x, k * spacing) - .attr("dy", orient === top ? "0em" : orient === bottom ? "0.71em" : "0.32em")); - - if (context !== selection) { - path = path.transition(context); - tick = tick.transition(context); - line = line.transition(context); - text = text.transition(context); - - tickExit = tickExit.transition(context) - .attr("opacity", epsilon) - .attr("transform", function(d) { return isFinite(d = position(d)) ? transform(d) : this.getAttribute("transform"); }); - - tickEnter - .attr("opacity", epsilon) - .attr("transform", function(d) { var p = this.parentNode.__axis; return transform(p && isFinite(p = p(d)) ? p : position(d)); }); - } - - tickExit.remove(); - - path - .attr("d", orient === left || orient == right - ? (tickSizeOuter ? "M" + k * tickSizeOuter + "," + range0 + "H0.5V" + range1 + "H" + k * tickSizeOuter : "M0.5," + range0 + "V" + range1) - : (tickSizeOuter ? "M" + range0 + "," + k * tickSizeOuter + "V0.5H" + range1 + "V" + k * tickSizeOuter : "M" + range0 + ",0.5H" + range1)); - - tick - .attr("opacity", 1) - .attr("transform", function(d) { return transform(position(d)); }); - - line - .attr(x + "2", k * tickSizeInner); - - text - .attr(x, k * spacing) - .text(format); - - selection.filter(entering) - .attr("fill", "none") - .attr("font-size", 10) - .attr("font-family", "sans-serif") - .attr("text-anchor", orient === right ? "start" : orient === left ? "end" : "middle"); - - selection - .each(function() { this.__axis = position; }); - } - - axis.scale = function(_) { - return arguments.length ? (scale = _, axis) : scale; - }; - - axis.ticks = function() { - return tickArguments = slice$1.call(arguments), axis; - }; - - axis.tickArguments = function(_) { - return arguments.length ? (tickArguments = _ == null ? [] : slice$1.call(_), axis) : tickArguments.slice(); - }; - - axis.tickValues = function(_) { - return arguments.length ? (tickValues = _ == null ? null : slice$1.call(_), axis) : tickValues && tickValues.slice(); - }; - - axis.tickFormat = function(_) { - return arguments.length ? (tickFormat = _, axis) : tickFormat; - }; - - axis.tickSize = function(_) { - return arguments.length ? (tickSizeInner = tickSizeOuter = +_, axis) : tickSizeInner; - }; - - axis.tickSizeInner = function(_) { - return arguments.length ? (tickSizeInner = +_, axis) : tickSizeInner; - }; - - axis.tickSizeOuter = function(_) { - return arguments.length ? (tickSizeOuter = +_, axis) : tickSizeOuter; - }; - - axis.tickPadding = function(_) { - return arguments.length ? (tickPadding = +_, axis) : tickPadding; - }; - - return axis; - } - - function axisTop(scale) { - return axis(top, scale); - } - - function axisRight(scale) { - return axis(right, scale); - } - - function axisBottom(scale) { - return axis(bottom, scale); - } - - function axisLeft(scale) { - return axis(left, scale); - } - - var noop = {value: function() {}}; - - function dispatch() { - for (var i = 0, n = arguments.length, _ = {}, t; i < n; ++i) { - if (!(t = arguments[i] + "") || (t in _) || /[\s.]/.test(t)) throw new Error("illegal type: " + t); - _[t] = []; - } - return new Dispatch(_); - } - - function Dispatch(_) { - this._ = _; - } - - function parseTypenames(typenames, types) { - return typenames.trim().split(/^|\s+/).map(function(t) { - var name = "", i = t.indexOf("."); - if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i); - if (t && !types.hasOwnProperty(t)) throw new Error("unknown type: " + t); - return {type: t, name: name}; - }); - } - - Dispatch.prototype = dispatch.prototype = { - constructor: Dispatch, - on: function(typename, callback) { - var _ = this._, - T = parseTypenames(typename + "", _), - t, - i = -1, - n = T.length; - - // If no callback was specified, return the callback of the given type and name. - if (arguments.length < 2) { - while (++i < n) if ((t = (typename = T[i]).type) && (t = get(_[t], typename.name))) return t; - return; - } - - // If a type was specified, set the callback for the given type and name. - // Otherwise, if a null callback was specified, remove callbacks of the given name. - if (callback != null && typeof callback !== "function") throw new Error("invalid callback: " + callback); - while (++i < n) { - if (t = (typename = T[i]).type) _[t] = set(_[t], typename.name, callback); - else if (callback == null) for (t in _) _[t] = set(_[t], typename.name, null); - } - - return this; - }, - copy: function() { - var copy = {}, _ = this._; - for (var t in _) copy[t] = _[t].slice(); - return new Dispatch(copy); - }, - call: function(type, that) { - if ((n = arguments.length - 2) > 0) for (var args = new Array(n), i = 0, n, t; i < n; ++i) args[i] = arguments[i + 2]; - if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type); - for (t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args); - }, - apply: function(type, that, args) { - if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type); - for (var t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args); - } - }; - - function get(type, name) { - for (var i = 0, n = type.length, c; i < n; ++i) { - if ((c = type[i]).name === name) { - return c.value; - } - } - } - - function set(type, name, callback) { - for (var i = 0, n = type.length; i < n; ++i) { - if (type[i].name === name) { - type[i] = noop, type = type.slice(0, i).concat(type.slice(i + 1)); - break; - } - } - if (callback != null) type.push({name: name, value: callback}); - return type; - } - - var xhtml = "http://www.w3.org/1999/xhtml"; - - var namespaces = { - svg: "http://www.w3.org/2000/svg", - xhtml: xhtml, - xlink: "http://www.w3.org/1999/xlink", - xml: "http://www.w3.org/XML/1998/namespace", - xmlns: "http://www.w3.org/2000/xmlns/" - }; - - function namespace(name) { - var prefix = name += "", i = prefix.indexOf(":"); - if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1); - return namespaces.hasOwnProperty(prefix) ? {space: namespaces[prefix], local: name} : name; - } - - function creatorInherit(name) { - return function() { - var document = this.ownerDocument, - uri = this.namespaceURI; - return uri === xhtml && document.documentElement.namespaceURI === xhtml - ? document.createElement(name) - : document.createElementNS(uri, name); - }; - } - - function creatorFixed(fullname) { - return function() { - return this.ownerDocument.createElementNS(fullname.space, fullname.local); - }; - } - - function creator(name) { - var fullname = namespace(name); - return (fullname.local - ? creatorFixed - : creatorInherit)(fullname); - } - - function none() {} - - function selector(selector) { - return selector == null ? none : function() { - return this.querySelector(selector); - }; - } - - function selection_select(select) { - if (typeof select !== "function") select = selector(select); - - for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) { - if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) { - if ("__data__" in node) subnode.__data__ = node.__data__; - subgroup[i] = subnode; - } - } - } - - return new Selection(subgroups, this._parents); - } - - function empty() { - return []; - } - - function selectorAll(selector) { - return selector == null ? empty : function() { - return this.querySelectorAll(selector); - }; - } - - function selection_selectAll(select) { - if (typeof select !== "function") select = selectorAll(select); - - for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { - if (node = group[i]) { - subgroups.push(select.call(node, node.__data__, i, group)); - parents.push(node); - } - } - } - - return new Selection(subgroups, parents); - } - - function matcher(selector) { - return function() { - return this.matches(selector); - }; - } - - function selection_filter(match) { - if (typeof match !== "function") match = matcher(match); - - for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) { - if ((node = group[i]) && match.call(node, node.__data__, i, group)) { - subgroup.push(node); - } - } - } - - return new Selection(subgroups, this._parents); - } - - function sparse(update) { - return new Array(update.length); - } - - function selection_enter() { - return new Selection(this._enter || this._groups.map(sparse), this._parents); - } - - function EnterNode(parent, datum) { - this.ownerDocument = parent.ownerDocument; - this.namespaceURI = parent.namespaceURI; - this._next = null; - this._parent = parent; - this.__data__ = datum; - } - - EnterNode.prototype = { - constructor: EnterNode, - appendChild: function(child) { return this._parent.insertBefore(child, this._next); }, - insertBefore: function(child, next) { return this._parent.insertBefore(child, next); }, - querySelector: function(selector) { return this._parent.querySelector(selector); }, - querySelectorAll: function(selector) { return this._parent.querySelectorAll(selector); } - }; - - function constant$1(x) { - return function() { - return x; - }; - } - - var keyPrefix = "$"; // Protect against keys like “__proto__”. - - function bindIndex(parent, group, enter, update, exit, data) { - var i = 0, - node, - groupLength = group.length, - dataLength = data.length; - - // Put any non-null nodes that fit into update. - // Put any null nodes into enter. - // Put any remaining data into enter. - for (; i < dataLength; ++i) { - if (node = group[i]) { - node.__data__ = data[i]; - update[i] = node; - } else { - enter[i] = new EnterNode(parent, data[i]); - } - } - - // Put any non-null nodes that don’t fit into exit. - for (; i < groupLength; ++i) { - if (node = group[i]) { - exit[i] = node; - } - } - } - - function bindKey(parent, group, enter, update, exit, data, key) { - var i, - node, - nodeByKeyValue = {}, - groupLength = group.length, - dataLength = data.length, - keyValues = new Array(groupLength), - keyValue; - - // Compute the key for each node. - // If multiple nodes have the same key, the duplicates are added to exit. - for (i = 0; i < groupLength; ++i) { - if (node = group[i]) { - keyValues[i] = keyValue = keyPrefix + key.call(node, node.__data__, i, group); - if (keyValue in nodeByKeyValue) { - exit[i] = node; - } else { - nodeByKeyValue[keyValue] = node; - } - } - } - - // Compute the key for each datum. - // If there a node associated with this key, join and add it to update. - // If there is not (or the key is a duplicate), add it to enter. - for (i = 0; i < dataLength; ++i) { - keyValue = keyPrefix + key.call(parent, data[i], i, data); - if (node = nodeByKeyValue[keyValue]) { - update[i] = node; - node.__data__ = data[i]; - nodeByKeyValue[keyValue] = null; - } else { - enter[i] = new EnterNode(parent, data[i]); - } - } - - // Add any remaining nodes that were not bound to data to exit. - for (i = 0; i < groupLength; ++i) { - if ((node = group[i]) && (nodeByKeyValue[keyValues[i]] === node)) { - exit[i] = node; - } - } - } - - function selection_data(value, key) { - if (!value) { - data = new Array(this.size()), j = -1; - this.each(function(d) { data[++j] = d; }); - return data; - } - - var bind = key ? bindKey : bindIndex, - parents = this._parents, - groups = this._groups; - - if (typeof value !== "function") value = constant$1(value); - - for (var m = groups.length, update = new Array(m), enter = new Array(m), exit = new Array(m), j = 0; j < m; ++j) { - var parent = parents[j], - group = groups[j], - groupLength = group.length, - data = value.call(parent, parent && parent.__data__, j, parents), - dataLength = data.length, - enterGroup = enter[j] = new Array(dataLength), - updateGroup = update[j] = new Array(dataLength), - exitGroup = exit[j] = new Array(groupLength); - - bind(parent, group, enterGroup, updateGroup, exitGroup, data, key); - - // Now connect the enter nodes to their following update node, such that - // appendChild can insert the materialized enter node before this node, - // rather than at the end of the parent node. - for (var i0 = 0, i1 = 0, previous, next; i0 < dataLength; ++i0) { - if (previous = enterGroup[i0]) { - if (i0 >= i1) i1 = i0 + 1; - while (!(next = updateGroup[i1]) && ++i1 < dataLength); - previous._next = next || null; - } - } - } - - update = new Selection(update, parents); - update._enter = enter; - update._exit = exit; - return update; - } - - function selection_exit() { - return new Selection(this._exit || this._groups.map(sparse), this._parents); - } - - function selection_join(onenter, onupdate, onexit) { - var enter = this.enter(), update = this, exit = this.exit(); - enter = typeof onenter === "function" ? onenter(enter) : enter.append(onenter + ""); - if (onupdate != null) update = onupdate(update); - if (onexit == null) exit.remove(); else onexit(exit); - return enter && update ? enter.merge(update).order() : update; - } - - function selection_merge(selection) { - - for (var groups0 = this._groups, groups1 = selection._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) { - for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) { - if (node = group0[i] || group1[i]) { - merge[i] = node; - } - } - } - - for (; j < m0; ++j) { - merges[j] = groups0[j]; - } - - return new Selection(merges, this._parents); - } - - function selection_order() { - - for (var groups = this._groups, j = -1, m = groups.length; ++j < m;) { - for (var group = groups[j], i = group.length - 1, next = group[i], node; --i >= 0;) { - if (node = group[i]) { - if (next && node.compareDocumentPosition(next) ^ 4) next.parentNode.insertBefore(node, next); - next = node; - } - } - } - - return this; - } - - function selection_sort(compare) { - if (!compare) compare = ascending$1; - - function compareNode(a, b) { - return a && b ? compare(a.__data__, b.__data__) : !a - !b; - } - - for (var groups = this._groups, m = groups.length, sortgroups = new Array(m), j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, sortgroup = sortgroups[j] = new Array(n), node, i = 0; i < n; ++i) { - if (node = group[i]) { - sortgroup[i] = node; - } - } - sortgroup.sort(compareNode); - } - - return new Selection(sortgroups, this._parents).order(); - } - - function ascending$1(a, b) { - return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN; - } - - function selection_call() { - var callback = arguments[0]; - arguments[0] = this; - callback.apply(null, arguments); - return this; - } - - function selection_nodes() { - var nodes = new Array(this.size()), i = -1; - this.each(function() { nodes[++i] = this; }); - return nodes; - } - - function selection_node() { - - for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) { - for (var group = groups[j], i = 0, n = group.length; i < n; ++i) { - var node = group[i]; - if (node) return node; - } - } - - return null; - } - - function selection_size() { - var size = 0; - this.each(function() { ++size; }); - return size; - } - - function selection_empty() { - return !this.node(); - } - - function selection_each(callback) { - - for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) { - for (var group = groups[j], i = 0, n = group.length, node; i < n; ++i) { - if (node = group[i]) callback.call(node, node.__data__, i, group); - } - } - - return this; - } - - function attrRemove(name) { - return function() { - this.removeAttribute(name); - }; - } - - function attrRemoveNS(fullname) { - return function() { - this.removeAttributeNS(fullname.space, fullname.local); - }; - } - - function attrConstant(name, value) { - return function() { - this.setAttribute(name, value); - }; - } - - function attrConstantNS(fullname, value) { - return function() { - this.setAttributeNS(fullname.space, fullname.local, value); - }; - } - - function attrFunction(name, value) { - return function() { - var v = value.apply(this, arguments); - if (v == null) this.removeAttribute(name); - else this.setAttribute(name, v); - }; - } - - function attrFunctionNS(fullname, value) { - return function() { - var v = value.apply(this, arguments); - if (v == null) this.removeAttributeNS(fullname.space, fullname.local); - else this.setAttributeNS(fullname.space, fullname.local, v); - }; - } - - function selection_attr(name, value) { - var fullname = namespace(name); - - if (arguments.length < 2) { - var node = this.node(); - return fullname.local - ? node.getAttributeNS(fullname.space, fullname.local) - : node.getAttribute(fullname); - } - - return this.each((value == null - ? (fullname.local ? attrRemoveNS : attrRemove) : (typeof value === "function" - ? (fullname.local ? attrFunctionNS : attrFunction) - : (fullname.local ? attrConstantNS : attrConstant)))(fullname, value)); - } - - function defaultView(node) { - return (node.ownerDocument && node.ownerDocument.defaultView) // node is a Node - || (node.document && node) // node is a Window - || node.defaultView; // node is a Document - } - - function styleRemove(name) { - return function() { - this.style.removeProperty(name); - }; - } - - function styleConstant(name, value, priority) { - return function() { - this.style.setProperty(name, value, priority); - }; - } - - function styleFunction(name, value, priority) { - return function() { - var v = value.apply(this, arguments); - if (v == null) this.style.removeProperty(name); - else this.style.setProperty(name, v, priority); - }; - } - - function selection_style(name, value, priority) { - return arguments.length > 1 - ? this.each((value == null - ? styleRemove : typeof value === "function" - ? styleFunction - : styleConstant)(name, value, priority == null ? "" : priority)) - : styleValue(this.node(), name); - } - - function styleValue(node, name) { - return node.style.getPropertyValue(name) - || defaultView(node).getComputedStyle(node, null).getPropertyValue(name); - } - - function propertyRemove(name) { - return function() { - delete this[name]; - }; - } - - function propertyConstant(name, value) { - return function() { - this[name] = value; - }; - } - - function propertyFunction(name, value) { - return function() { - var v = value.apply(this, arguments); - if (v == null) delete this[name]; - else this[name] = v; - }; - } - - function selection_property(name, value) { - return arguments.length > 1 - ? this.each((value == null - ? propertyRemove : typeof value === "function" - ? propertyFunction - : propertyConstant)(name, value)) - : this.node()[name]; - } - - function classArray(string) { - return string.trim().split(/^|\s+/); - } - - function classList(node) { - return node.classList || new ClassList(node); - } - - function ClassList(node) { - this._node = node; - this._names = classArray(node.getAttribute("class") || ""); - } - - ClassList.prototype = { - add: function(name) { - var i = this._names.indexOf(name); - if (i < 0) { - this._names.push(name); - this._node.setAttribute("class", this._names.join(" ")); - } - }, - remove: function(name) { - var i = this._names.indexOf(name); - if (i >= 0) { - this._names.splice(i, 1); - this._node.setAttribute("class", this._names.join(" ")); - } - }, - contains: function(name) { - return this._names.indexOf(name) >= 0; - } - }; - - function classedAdd(node, names) { - var list = classList(node), i = -1, n = names.length; - while (++i < n) list.add(names[i]); - } - - function classedRemove(node, names) { - var list = classList(node), i = -1, n = names.length; - while (++i < n) list.remove(names[i]); - } - - function classedTrue(names) { - return function() { - classedAdd(this, names); - }; - } - - function classedFalse(names) { - return function() { - classedRemove(this, names); - }; - } - - function classedFunction(names, value) { - return function() { - (value.apply(this, arguments) ? classedAdd : classedRemove)(this, names); - }; - } - - function selection_classed(name, value) { - var names = classArray(name + ""); - - if (arguments.length < 2) { - var list = classList(this.node()), i = -1, n = names.length; - while (++i < n) if (!list.contains(names[i])) return false; - return true; - } - - return this.each((typeof value === "function" - ? classedFunction : value - ? classedTrue - : classedFalse)(names, value)); - } - - function textRemove() { - this.textContent = ""; - } - - function textConstant(value) { - return function() { - this.textContent = value; - }; - } - - function textFunction(value) { - return function() { - var v = value.apply(this, arguments); - this.textContent = v == null ? "" : v; - }; - } - - function selection_text(value) { - return arguments.length - ? this.each(value == null - ? textRemove : (typeof value === "function" - ? textFunction - : textConstant)(value)) - : this.node().textContent; - } - - function htmlRemove() { - this.innerHTML = ""; - } - - function htmlConstant(value) { - return function() { - this.innerHTML = value; - }; - } - - function htmlFunction(value) { - return function() { - var v = value.apply(this, arguments); - this.innerHTML = v == null ? "" : v; - }; - } - - function selection_html(value) { - return arguments.length - ? this.each(value == null - ? htmlRemove : (typeof value === "function" - ? htmlFunction - : htmlConstant)(value)) - : this.node().innerHTML; - } - - function raise() { - if (this.nextSibling) this.parentNode.appendChild(this); - } - - function selection_raise() { - return this.each(raise); - } - - function lower() { - if (this.previousSibling) this.parentNode.insertBefore(this, this.parentNode.firstChild); - } - - function selection_lower() { - return this.each(lower); - } - - function selection_append(name) { - var create = typeof name === "function" ? name : creator(name); - return this.select(function() { - return this.appendChild(create.apply(this, arguments)); - }); - } - - function constantNull() { - return null; - } - - function selection_insert(name, before) { - var create = typeof name === "function" ? name : creator(name), - select = before == null ? constantNull : typeof before === "function" ? before : selector(before); - return this.select(function() { - return this.insertBefore(create.apply(this, arguments), select.apply(this, arguments) || null); - }); - } - - function remove() { - var parent = this.parentNode; - if (parent) parent.removeChild(this); - } - - function selection_remove() { - return this.each(remove); - } - - function selection_cloneShallow() { - var clone = this.cloneNode(false), parent = this.parentNode; - return parent ? parent.insertBefore(clone, this.nextSibling) : clone; - } - - function selection_cloneDeep() { - var clone = this.cloneNode(true), parent = this.parentNode; - return parent ? parent.insertBefore(clone, this.nextSibling) : clone; - } - - function selection_clone(deep) { - return this.select(deep ? selection_cloneDeep : selection_cloneShallow); - } - - function selection_datum(value) { - return arguments.length - ? this.property("__data__", value) - : this.node().__data__; - } - - var filterEvents = {}; - - var event = null; - - if (typeof document !== "undefined") { - var element = document.documentElement; - if (!("onmouseenter" in element)) { - filterEvents = {mouseenter: "mouseover", mouseleave: "mouseout"}; - } - } - - function filterContextListener(listener, index, group) { - listener = contextListener(listener, index, group); - return function(event) { - var related = event.relatedTarget; - if (!related || (related !== this && !(related.compareDocumentPosition(this) & 8))) { - listener.call(this, event); - } - }; - } - - function contextListener(listener, index, group) { - return function(event1) { - var event0 = event; // Events can be reentrant (e.g., focus). - event = event1; - try { - listener.call(this, this.__data__, index, group); - } finally { - event = event0; - } - }; - } - - function parseTypenames$1(typenames) { - return typenames.trim().split(/^|\s+/).map(function(t) { - var name = "", i = t.indexOf("."); - if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i); - return {type: t, name: name}; - }); - } - - function onRemove(typename) { - return function() { - var on = this.__on; - if (!on) return; - for (var j = 0, i = -1, m = on.length, o; j < m; ++j) { - if (o = on[j], (!typename.type || o.type === typename.type) && o.name === typename.name) { - this.removeEventListener(o.type, o.listener, o.capture); - } else { - on[++i] = o; - } - } - if (++i) on.length = i; - else delete this.__on; - }; - } - - function onAdd(typename, value, capture) { - var wrap = filterEvents.hasOwnProperty(typename.type) ? filterContextListener : contextListener; - return function(d, i, group) { - var on = this.__on, o, listener = wrap(value, i, group); - if (on) for (var j = 0, m = on.length; j < m; ++j) { - if ((o = on[j]).type === typename.type && o.name === typename.name) { - this.removeEventListener(o.type, o.listener, o.capture); - this.addEventListener(o.type, o.listener = listener, o.capture = capture); - o.value = value; - return; - } - } - this.addEventListener(typename.type, listener, capture); - o = {type: typename.type, name: typename.name, value: value, listener: listener, capture: capture}; - if (!on) this.__on = [o]; - else on.push(o); - }; - } - - function selection_on(typename, value, capture) { - var typenames = parseTypenames$1(typename + ""), i, n = typenames.length, t; - - if (arguments.length < 2) { - var on = this.node().__on; - if (on) for (var j = 0, m = on.length, o; j < m; ++j) { - for (i = 0, o = on[j]; i < n; ++i) { - if ((t = typenames[i]).type === o.type && t.name === o.name) { - return o.value; - } - } - } - return; - } - - on = value ? onAdd : onRemove; - if (capture == null) capture = false; - for (i = 0; i < n; ++i) this.each(on(typenames[i], value, capture)); - return this; - } - - function customEvent(event1, listener, that, args) { - var event0 = event; - event1.sourceEvent = event; - event = event1; - try { - return listener.apply(that, args); - } finally { - event = event0; - } - } - - function dispatchEvent(node, type, params) { - var window = defaultView(node), - event = window.CustomEvent; - - if (typeof event === "function") { - event = new event(type, params); - } else { - event = window.document.createEvent("Event"); - if (params) event.initEvent(type, params.bubbles, params.cancelable), event.detail = params.detail; - else event.initEvent(type, false, false); - } - - node.dispatchEvent(event); - } - - function dispatchConstant(type, params) { - return function() { - return dispatchEvent(this, type, params); - }; - } - - function dispatchFunction(type, params) { - return function() { - return dispatchEvent(this, type, params.apply(this, arguments)); - }; - } - - function selection_dispatch(type, params) { - return this.each((typeof params === "function" - ? dispatchFunction - : dispatchConstant)(type, params)); - } - - var root = [null]; - - function Selection(groups, parents) { - this._groups = groups; - this._parents = parents; - } - - function selection() { - return new Selection([[document.documentElement]], root); - } - - Selection.prototype = selection.prototype = { - constructor: Selection, - select: selection_select, - selectAll: selection_selectAll, - filter: selection_filter, - data: selection_data, - enter: selection_enter, - exit: selection_exit, - join: selection_join, - merge: selection_merge, - order: selection_order, - sort: selection_sort, - call: selection_call, - nodes: selection_nodes, - node: selection_node, - size: selection_size, - empty: selection_empty, - each: selection_each, - attr: selection_attr, - style: selection_style, - property: selection_property, - classed: selection_classed, - text: selection_text, - html: selection_html, - raise: selection_raise, - lower: selection_lower, - append: selection_append, - insert: selection_insert, - remove: selection_remove, - clone: selection_clone, - datum: selection_datum, - on: selection_on, - dispatch: selection_dispatch - }; - - function select(selector) { - return typeof selector === "string" - ? new Selection([[document.querySelector(selector)]], [document.documentElement]) - : new Selection([[selector]], root); - } - - function create(name) { - return select(creator(name).call(document.documentElement)); - } - - var nextId = 0; - - function local() { - return new Local; - } - - function Local() { - this._ = "@" + (++nextId).toString(36); - } - - Local.prototype = local.prototype = { - constructor: Local, - get: function(node) { - var id = this._; - while (!(id in node)) if (!(node = node.parentNode)) return; - return node[id]; - }, - set: function(node, value) { - return node[this._] = value; - }, - remove: function(node) { - return this._ in node && delete node[this._]; - }, - toString: function() { - return this._; - } - }; - - function sourceEvent() { - var current = event, source; - while (source = current.sourceEvent) current = source; - return current; - } - - function point(node, event) { - var svg = node.ownerSVGElement || node; - - if (svg.createSVGPoint) { - var point = svg.createSVGPoint(); - point.x = event.clientX, point.y = event.clientY; - point = point.matrixTransform(node.getScreenCTM().inverse()); - return [point.x, point.y]; - } - - var rect = node.getBoundingClientRect(); - return [event.clientX - rect.left - node.clientLeft, event.clientY - rect.top - node.clientTop]; - } - - function mouse(node) { - var event = sourceEvent(); - if (event.changedTouches) event = event.changedTouches[0]; - return point(node, event); - } - - function selectAll(selector) { - return typeof selector === "string" - ? new Selection([document.querySelectorAll(selector)], [document.documentElement]) - : new Selection([selector == null ? [] : selector], root); - } - - function touch(node, touches, identifier) { - if (arguments.length < 3) identifier = touches, touches = sourceEvent().changedTouches; - - for (var i = 0, n = touches ? touches.length : 0, touch; i < n; ++i) { - if ((touch = touches[i]).identifier === identifier) { - return point(node, touch); - } - } - - return null; - } - - function touches(node, touches) { - if (touches == null) touches = sourceEvent().touches; - - for (var i = 0, n = touches ? touches.length : 0, points = new Array(n); i < n; ++i) { - points[i] = point(node, touches[i]); - } - - return points; - } - - function nopropagation() { - event.stopImmediatePropagation(); - } - - function noevent() { - event.preventDefault(); - event.stopImmediatePropagation(); - } - - function dragDisable(view) { - var root = view.document.documentElement, - selection = select(view).on("dragstart.drag", noevent, true); - if ("onselectstart" in root) { - selection.on("selectstart.drag", noevent, true); - } else { - root.__noselect = root.style.MozUserSelect; - root.style.MozUserSelect = "none"; - } - } - - function yesdrag(view, noclick) { - var root = view.document.documentElement, - selection = select(view).on("dragstart.drag", null); - if (noclick) { - selection.on("click.drag", noevent, true); - setTimeout(function() { selection.on("click.drag", null); }, 0); - } - if ("onselectstart" in root) { - selection.on("selectstart.drag", null); - } else { - root.style.MozUserSelect = root.__noselect; - delete root.__noselect; - } - } - - function constant$2(x) { - return function() { - return x; - }; - } - - function DragEvent(target, type, subject, id, active, x, y, dx, dy, dispatch) { - this.target = target; - this.type = type; - this.subject = subject; - this.identifier = id; - this.active = active; - this.x = x; - this.y = y; - this.dx = dx; - this.dy = dy; - this._ = dispatch; - } - - DragEvent.prototype.on = function() { - var value = this._.on.apply(this._, arguments); - return value === this._ ? this : value; - }; - - // Ignore right-click, since that should open the context menu. - function defaultFilter() { - return !event.ctrlKey && !event.button; - } - - function defaultContainer() { - return this.parentNode; - } - - function defaultSubject(d) { - return d == null ? {x: event.x, y: event.y} : d; - } - - function defaultTouchable() { - return navigator.maxTouchPoints || ("ontouchstart" in this); - } - - function drag() { - var filter = defaultFilter, - container = defaultContainer, - subject = defaultSubject, - touchable = defaultTouchable, - gestures = {}, - listeners = dispatch("start", "drag", "end"), - active = 0, - mousedownx, - mousedowny, - mousemoving, - touchending, - clickDistance2 = 0; - - function drag(selection) { - selection - .on("mousedown.drag", mousedowned) - .filter(touchable) - .on("touchstart.drag", touchstarted) - .on("touchmove.drag", touchmoved) - .on("touchend.drag touchcancel.drag", touchended) - .style("touch-action", "none") - .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)"); - } - - function mousedowned() { - if (touchending || !filter.apply(this, arguments)) return; - var gesture = beforestart("mouse", container.apply(this, arguments), mouse, this, arguments); - if (!gesture) return; - select(event.view).on("mousemove.drag", mousemoved, true).on("mouseup.drag", mouseupped, true); - dragDisable(event.view); - nopropagation(); - mousemoving = false; - mousedownx = event.clientX; - mousedowny = event.clientY; - gesture("start"); - } - - function mousemoved() { - noevent(); - if (!mousemoving) { - var dx = event.clientX - mousedownx, dy = event.clientY - mousedowny; - mousemoving = dx * dx + dy * dy > clickDistance2; - } - gestures.mouse("drag"); - } - - function mouseupped() { - select(event.view).on("mousemove.drag mouseup.drag", null); - yesdrag(event.view, mousemoving); - noevent(); - gestures.mouse("end"); - } - - function touchstarted() { - if (!filter.apply(this, arguments)) return; - var touches = event.changedTouches, - c = container.apply(this, arguments), - n = touches.length, i, gesture; - - for (i = 0; i < n; ++i) { - if (gesture = beforestart(touches[i].identifier, c, touch, this, arguments)) { - nopropagation(); - gesture("start"); - } - } - } - - function touchmoved() { - var touches = event.changedTouches, - n = touches.length, i, gesture; - - for (i = 0; i < n; ++i) { - if (gesture = gestures[touches[i].identifier]) { - noevent(); - gesture("drag"); - } - } - } - - function touchended() { - var touches = event.changedTouches, - n = touches.length, i, gesture; - - if (touchending) clearTimeout(touchending); - touchending = setTimeout(function() { touchending = null; }, 500); // Ghost clicks are delayed! - for (i = 0; i < n; ++i) { - if (gesture = gestures[touches[i].identifier]) { - nopropagation(); - gesture("end"); - } - } - } - - function beforestart(id, container, point, that, args) { - var p = point(container, id), s, dx, dy, - sublisteners = listeners.copy(); - - if (!customEvent(new DragEvent(drag, "beforestart", s, id, active, p[0], p[1], 0, 0, sublisteners), function() { - if ((event.subject = s = subject.apply(that, args)) == null) return false; - dx = s.x - p[0] || 0; - dy = s.y - p[1] || 0; - return true; - })) return; - - return function gesture(type) { - var p0 = p, n; - switch (type) { - case "start": gestures[id] = gesture, n = active++; break; - case "end": delete gestures[id], --active; // nobreak - case "drag": p = point(container, id), n = active; break; - } - customEvent(new DragEvent(drag, type, s, id, n, p[0] + dx, p[1] + dy, p[0] - p0[0], p[1] - p0[1], sublisteners), sublisteners.apply, sublisteners, [type, that, args]); - }; - } - - drag.filter = function(_) { - return arguments.length ? (filter = typeof _ === "function" ? _ : constant$2(!!_), drag) : filter; - }; - - drag.container = function(_) { - return arguments.length ? (container = typeof _ === "function" ? _ : constant$2(_), drag) : container; - }; - - drag.subject = function(_) { - return arguments.length ? (subject = typeof _ === "function" ? _ : constant$2(_), drag) : subject; - }; - - drag.touchable = function(_) { - return arguments.length ? (touchable = typeof _ === "function" ? _ : constant$2(!!_), drag) : touchable; - }; - - drag.on = function() { - var value = listeners.on.apply(listeners, arguments); - return value === listeners ? drag : value; - }; - - drag.clickDistance = function(_) { - return arguments.length ? (clickDistance2 = (_ = +_) * _, drag) : Math.sqrt(clickDistance2); - }; - - return drag; - } - - function define(constructor, factory, prototype) { - constructor.prototype = factory.prototype = prototype; - prototype.constructor = constructor; - } - - function extend(parent, definition) { - var prototype = Object.create(parent.prototype); - for (var key in definition) prototype[key] = definition[key]; - return prototype; - } - - function Color() {} - - var darker = 0.7; - var brighter = 1 / darker; - - var reI = "\\s*([+-]?\\d+)\\s*", - reN = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)\\s*", - reP = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)%\\s*", - reHex = /^#([0-9a-f]{3,8})$/, - reRgbInteger = new RegExp("^rgb\\(" + [reI, reI, reI] + "\\)$"), - reRgbPercent = new RegExp("^rgb\\(" + [reP, reP, reP] + "\\)$"), - reRgbaInteger = new RegExp("^rgba\\(" + [reI, reI, reI, reN] + "\\)$"), - reRgbaPercent = new RegExp("^rgba\\(" + [reP, reP, reP, reN] + "\\)$"), - reHslPercent = new RegExp("^hsl\\(" + [reN, reP, reP] + "\\)$"), - reHslaPercent = new RegExp("^hsla\\(" + [reN, reP, reP, reN] + "\\)$"); - - var named = { - aliceblue: 0xf0f8ff, - antiquewhite: 0xfaebd7, - aqua: 0x00ffff, - aquamarine: 0x7fffd4, - azure: 0xf0ffff, - beige: 0xf5f5dc, - bisque: 0xffe4c4, - black: 0x000000, - blanchedalmond: 0xffebcd, - blue: 0x0000ff, - blueviolet: 0x8a2be2, - brown: 0xa52a2a, - burlywood: 0xdeb887, - cadetblue: 0x5f9ea0, - chartreuse: 0x7fff00, - chocolate: 0xd2691e, - coral: 0xff7f50, - cornflowerblue: 0x6495ed, - cornsilk: 0xfff8dc, - crimson: 0xdc143c, - cyan: 0x00ffff, - darkblue: 0x00008b, - darkcyan: 0x008b8b, - darkgoldenrod: 0xb8860b, - darkgray: 0xa9a9a9, - darkgreen: 0x006400, - darkgrey: 0xa9a9a9, - darkkhaki: 0xbdb76b, - darkmagenta: 0x8b008b, - darkolivegreen: 0x556b2f, - darkorange: 0xff8c00, - darkorchid: 0x9932cc, - darkred: 0x8b0000, - darksalmon: 0xe9967a, - darkseagreen: 0x8fbc8f, - darkslateblue: 0x483d8b, - darkslategray: 0x2f4f4f, - darkslategrey: 0x2f4f4f, - darkturquoise: 0x00ced1, - darkviolet: 0x9400d3, - deeppink: 0xff1493, - deepskyblue: 0x00bfff, - dimgray: 0x696969, - dimgrey: 0x696969, - dodgerblue: 0x1e90ff, - firebrick: 0xb22222, - floralwhite: 0xfffaf0, - forestgreen: 0x228b22, - fuchsia: 0xff00ff, - gainsboro: 0xdcdcdc, - ghostwhite: 0xf8f8ff, - gold: 0xffd700, - goldenrod: 0xdaa520, - gray: 0x808080, - green: 0x008000, - greenyellow: 0xadff2f, - grey: 0x808080, - honeydew: 0xf0fff0, - hotpink: 0xff69b4, - indianred: 0xcd5c5c, - indigo: 0x4b0082, - ivory: 0xfffff0, - khaki: 0xf0e68c, - lavender: 0xe6e6fa, - lavenderblush: 0xfff0f5, - lawngreen: 0x7cfc00, - lemonchiffon: 0xfffacd, - lightblue: 0xadd8e6, - lightcoral: 0xf08080, - lightcyan: 0xe0ffff, - lightgoldenrodyellow: 0xfafad2, - lightgray: 0xd3d3d3, - lightgreen: 0x90ee90, - lightgrey: 0xd3d3d3, - lightpink: 0xffb6c1, - lightsalmon: 0xffa07a, - lightseagreen: 0x20b2aa, - lightskyblue: 0x87cefa, - lightslategray: 0x778899, - lightslategrey: 0x778899, - lightsteelblue: 0xb0c4de, - lightyellow: 0xffffe0, - lime: 0x00ff00, - limegreen: 0x32cd32, - linen: 0xfaf0e6, - magenta: 0xff00ff, - maroon: 0x800000, - mediumaquamarine: 0x66cdaa, - mediumblue: 0x0000cd, - mediumorchid: 0xba55d3, - mediumpurple: 0x9370db, - mediumseagreen: 0x3cb371, - mediumslateblue: 0x7b68ee, - mediumspringgreen: 0x00fa9a, - mediumturquoise: 0x48d1cc, - mediumvioletred: 0xc71585, - midnightblue: 0x191970, - mintcream: 0xf5fffa, - mistyrose: 0xffe4e1, - moccasin: 0xffe4b5, - navajowhite: 0xffdead, - navy: 0x000080, - oldlace: 0xfdf5e6, - olive: 0x808000, - olivedrab: 0x6b8e23, - orange: 0xffa500, - orangered: 0xff4500, - orchid: 0xda70d6, - palegoldenrod: 0xeee8aa, - palegreen: 0x98fb98, - paleturquoise: 0xafeeee, - palevioletred: 0xdb7093, - papayawhip: 0xffefd5, - peachpuff: 0xffdab9, - peru: 0xcd853f, - pink: 0xffc0cb, - plum: 0xdda0dd, - powderblue: 0xb0e0e6, - purple: 0x800080, - rebeccapurple: 0x663399, - red: 0xff0000, - rosybrown: 0xbc8f8f, - royalblue: 0x4169e1, - saddlebrown: 0x8b4513, - salmon: 0xfa8072, - sandybrown: 0xf4a460, - seagreen: 0x2e8b57, - seashell: 0xfff5ee, - sienna: 0xa0522d, - silver: 0xc0c0c0, - skyblue: 0x87ceeb, - slateblue: 0x6a5acd, - slategray: 0x708090, - slategrey: 0x708090, - snow: 0xfffafa, - springgreen: 0x00ff7f, - steelblue: 0x4682b4, - tan: 0xd2b48c, - teal: 0x008080, - thistle: 0xd8bfd8, - tomato: 0xff6347, - turquoise: 0x40e0d0, - violet: 0xee82ee, - wheat: 0xf5deb3, - white: 0xffffff, - whitesmoke: 0xf5f5f5, - yellow: 0xffff00, - yellowgreen: 0x9acd32 - }; - - define(Color, color, { - copy: function(channels) { - return Object.assign(new this.constructor, this, channels); - }, - displayable: function() { - return this.rgb().displayable(); - }, - hex: color_formatHex, // Deprecated! Use color.formatHex. - formatHex: color_formatHex, - formatHsl: color_formatHsl, - formatRgb: color_formatRgb, - toString: color_formatRgb - }); - - function color_formatHex() { - return this.rgb().formatHex(); - } - - function color_formatHsl() { - return hslConvert(this).formatHsl(); - } - - function color_formatRgb() { - return this.rgb().formatRgb(); - } - - function color(format) { - var m, l; - format = (format + "").trim().toLowerCase(); - return (m = reHex.exec(format)) ? (l = m[1].length, m = parseInt(m[1], 16), l === 6 ? rgbn(m) // #ff0000 - : l === 3 ? new Rgb((m >> 8 & 0xf) | (m >> 4 & 0xf0), (m >> 4 & 0xf) | (m & 0xf0), ((m & 0xf) << 4) | (m & 0xf), 1) // #f00 - : l === 8 ? rgba(m >> 24 & 0xff, m >> 16 & 0xff, m >> 8 & 0xff, (m & 0xff) / 0xff) // #ff000000 - : l === 4 ? rgba((m >> 12 & 0xf) | (m >> 8 & 0xf0), (m >> 8 & 0xf) | (m >> 4 & 0xf0), (m >> 4 & 0xf) | (m & 0xf0), (((m & 0xf) << 4) | (m & 0xf)) / 0xff) // #f000 - : null) // invalid hex - : (m = reRgbInteger.exec(format)) ? new Rgb(m[1], m[2], m[3], 1) // rgb(255, 0, 0) - : (m = reRgbPercent.exec(format)) ? new Rgb(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, 1) // rgb(100%, 0%, 0%) - : (m = reRgbaInteger.exec(format)) ? rgba(m[1], m[2], m[3], m[4]) // rgba(255, 0, 0, 1) - : (m = reRgbaPercent.exec(format)) ? rgba(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, m[4]) // rgb(100%, 0%, 0%, 1) - : (m = reHslPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, 1) // hsl(120, 50%, 50%) - : (m = reHslaPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, m[4]) // hsla(120, 50%, 50%, 1) - : named.hasOwnProperty(format) ? rgbn(named[format]) // eslint-disable-line no-prototype-builtins - : format === "transparent" ? new Rgb(NaN, NaN, NaN, 0) - : null; - } - - function rgbn(n) { - return new Rgb(n >> 16 & 0xff, n >> 8 & 0xff, n & 0xff, 1); - } - - function rgba(r, g, b, a) { - if (a <= 0) r = g = b = NaN; - return new Rgb(r, g, b, a); - } - - function rgbConvert(o) { - if (!(o instanceof Color)) o = color(o); - if (!o) return new Rgb; - o = o.rgb(); - return new Rgb(o.r, o.g, o.b, o.opacity); - } - - function rgb(r, g, b, opacity) { - return arguments.length === 1 ? rgbConvert(r) : new Rgb(r, g, b, opacity == null ? 1 : opacity); - } - - function Rgb(r, g, b, opacity) { - this.r = +r; - this.g = +g; - this.b = +b; - this.opacity = +opacity; - } - - define(Rgb, rgb, extend(Color, { - brighter: function(k) { - k = k == null ? brighter : Math.pow(brighter, k); - return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity); - }, - darker: function(k) { - k = k == null ? darker : Math.pow(darker, k); - return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity); - }, - rgb: function() { - return this; - }, - displayable: function() { - return (-0.5 <= this.r && this.r < 255.5) - && (-0.5 <= this.g && this.g < 255.5) - && (-0.5 <= this.b && this.b < 255.5) - && (0 <= this.opacity && this.opacity <= 1); - }, - hex: rgb_formatHex, // Deprecated! Use color.formatHex. - formatHex: rgb_formatHex, - formatRgb: rgb_formatRgb, - toString: rgb_formatRgb - })); - - function rgb_formatHex() { - return "#" + hex(this.r) + hex(this.g) + hex(this.b); - } - - function rgb_formatRgb() { - var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a)); - return (a === 1 ? "rgb(" : "rgba(") - + Math.max(0, Math.min(255, Math.round(this.r) || 0)) + ", " - + Math.max(0, Math.min(255, Math.round(this.g) || 0)) + ", " - + Math.max(0, Math.min(255, Math.round(this.b) || 0)) - + (a === 1 ? ")" : ", " + a + ")"); - } - - function hex(value) { - value = Math.max(0, Math.min(255, Math.round(value) || 0)); - return (value < 16 ? "0" : "") + value.toString(16); - } - - function hsla(h, s, l, a) { - if (a <= 0) h = s = l = NaN; - else if (l <= 0 || l >= 1) h = s = NaN; - else if (s <= 0) h = NaN; - return new Hsl(h, s, l, a); - } - - function hslConvert(o) { - if (o instanceof Hsl) return new Hsl(o.h, o.s, o.l, o.opacity); - if (!(o instanceof Color)) o = color(o); - if (!o) return new Hsl; - if (o instanceof Hsl) return o; - o = o.rgb(); - var r = o.r / 255, - g = o.g / 255, - b = o.b / 255, - min = Math.min(r, g, b), - max = Math.max(r, g, b), - h = NaN, - s = max - min, - l = (max + min) / 2; - if (s) { - if (r === max) h = (g - b) / s + (g < b) * 6; - else if (g === max) h = (b - r) / s + 2; - else h = (r - g) / s + 4; - s /= l < 0.5 ? max + min : 2 - max - min; - h *= 60; - } else { - s = l > 0 && l < 1 ? 0 : h; - } - return new Hsl(h, s, l, o.opacity); - } - - function hsl(h, s, l, opacity) { - return arguments.length === 1 ? hslConvert(h) : new Hsl(h, s, l, opacity == null ? 1 : opacity); - } - - function Hsl(h, s, l, opacity) { - this.h = +h; - this.s = +s; - this.l = +l; - this.opacity = +opacity; - } - - define(Hsl, hsl, extend(Color, { - brighter: function(k) { - k = k == null ? brighter : Math.pow(brighter, k); - return new Hsl(this.h, this.s, this.l * k, this.opacity); - }, - darker: function(k) { - k = k == null ? darker : Math.pow(darker, k); - return new Hsl(this.h, this.s, this.l * k, this.opacity); - }, - rgb: function() { - var h = this.h % 360 + (this.h < 0) * 360, - s = isNaN(h) || isNaN(this.s) ? 0 : this.s, - l = this.l, - m2 = l + (l < 0.5 ? l : 1 - l) * s, - m1 = 2 * l - m2; - return new Rgb( - hsl2rgb(h >= 240 ? h - 240 : h + 120, m1, m2), - hsl2rgb(h, m1, m2), - hsl2rgb(h < 120 ? h + 240 : h - 120, m1, m2), - this.opacity - ); - }, - displayable: function() { - return (0 <= this.s && this.s <= 1 || isNaN(this.s)) - && (0 <= this.l && this.l <= 1) - && (0 <= this.opacity && this.opacity <= 1); - }, - formatHsl: function() { - var a = this.opacity; a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a)); - return (a === 1 ? "hsl(" : "hsla(") - + (this.h || 0) + ", " - + (this.s || 0) * 100 + "%, " - + (this.l || 0) * 100 + "%" - + (a === 1 ? ")" : ", " + a + ")"); - } - })); - - /* From FvD 13.37, CSS Color Module Level 3 */ - function hsl2rgb(h, m1, m2) { - return (h < 60 ? m1 + (m2 - m1) * h / 60 - : h < 180 ? m2 - : h < 240 ? m1 + (m2 - m1) * (240 - h) / 60 - : m1) * 255; - } - - var deg2rad = Math.PI / 180; - var rad2deg = 180 / Math.PI; - - // https://observablehq.com/@mbostock/lab-and-rgb - var K = 18, - Xn = 0.96422, - Yn = 1, - Zn = 0.82521, - t0 = 4 / 29, - t1 = 6 / 29, - t2 = 3 * t1 * t1, - t3 = t1 * t1 * t1; - - function labConvert(o) { - if (o instanceof Lab) return new Lab(o.l, o.a, o.b, o.opacity); - if (o instanceof Hcl) return hcl2lab(o); - if (!(o instanceof Rgb)) o = rgbConvert(o); - var r = rgb2lrgb(o.r), - g = rgb2lrgb(o.g), - b = rgb2lrgb(o.b), - y = xyz2lab((0.2225045 * r + 0.7168786 * g + 0.0606169 * b) / Yn), x, z; - if (r === g && g === b) x = z = y; else { - x = xyz2lab((0.4360747 * r + 0.3850649 * g + 0.1430804 * b) / Xn); - z = xyz2lab((0.0139322 * r + 0.0971045 * g + 0.7141733 * b) / Zn); - } - return new Lab(116 * y - 16, 500 * (x - y), 200 * (y - z), o.opacity); - } - - function gray(l, opacity) { - return new Lab(l, 0, 0, opacity == null ? 1 : opacity); - } - - function lab(l, a, b, opacity) { - return arguments.length === 1 ? labConvert(l) : new Lab(l, a, b, opacity == null ? 1 : opacity); - } - - function Lab(l, a, b, opacity) { - this.l = +l; - this.a = +a; - this.b = +b; - this.opacity = +opacity; - } - - define(Lab, lab, extend(Color, { - brighter: function(k) { - return new Lab(this.l + K * (k == null ? 1 : k), this.a, this.b, this.opacity); - }, - darker: function(k) { - return new Lab(this.l - K * (k == null ? 1 : k), this.a, this.b, this.opacity); - }, - rgb: function() { - var y = (this.l + 16) / 116, - x = isNaN(this.a) ? y : y + this.a / 500, - z = isNaN(this.b) ? y : y - this.b / 200; - x = Xn * lab2xyz(x); - y = Yn * lab2xyz(y); - z = Zn * lab2xyz(z); - return new Rgb( - lrgb2rgb( 3.1338561 * x - 1.6168667 * y - 0.4906146 * z), - lrgb2rgb(-0.9787684 * x + 1.9161415 * y + 0.0334540 * z), - lrgb2rgb( 0.0719453 * x - 0.2289914 * y + 1.4052427 * z), - this.opacity - ); - } - })); - - function xyz2lab(t) { - return t > t3 ? Math.pow(t, 1 / 3) : t / t2 + t0; - } - - function lab2xyz(t) { - return t > t1 ? t * t * t : t2 * (t - t0); - } - - function lrgb2rgb(x) { - return 255 * (x <= 0.0031308 ? 12.92 * x : 1.055 * Math.pow(x, 1 / 2.4) - 0.055); - } - - function rgb2lrgb(x) { - return (x /= 255) <= 0.04045 ? x / 12.92 : Math.pow((x + 0.055) / 1.055, 2.4); - } - - function hclConvert(o) { - if (o instanceof Hcl) return new Hcl(o.h, o.c, o.l, o.opacity); - if (!(o instanceof Lab)) o = labConvert(o); - if (o.a === 0 && o.b === 0) return new Hcl(NaN, 0 < o.l && o.l < 100 ? 0 : NaN, o.l, o.opacity); - var h = Math.atan2(o.b, o.a) * rad2deg; - return new Hcl(h < 0 ? h + 360 : h, Math.sqrt(o.a * o.a + o.b * o.b), o.l, o.opacity); - } - - function lch(l, c, h, opacity) { - return arguments.length === 1 ? hclConvert(l) : new Hcl(h, c, l, opacity == null ? 1 : opacity); - } - - function hcl(h, c, l, opacity) { - return arguments.length === 1 ? hclConvert(h) : new Hcl(h, c, l, opacity == null ? 1 : opacity); - } - - function Hcl(h, c, l, opacity) { - this.h = +h; - this.c = +c; - this.l = +l; - this.opacity = +opacity; - } - - function hcl2lab(o) { - if (isNaN(o.h)) return new Lab(o.l, 0, 0, o.opacity); - var h = o.h * deg2rad; - return new Lab(o.l, Math.cos(h) * o.c, Math.sin(h) * o.c, o.opacity); - } - - define(Hcl, hcl, extend(Color, { - brighter: function(k) { - return new Hcl(this.h, this.c, this.l + K * (k == null ? 1 : k), this.opacity); - }, - darker: function(k) { - return new Hcl(this.h, this.c, this.l - K * (k == null ? 1 : k), this.opacity); - }, - rgb: function() { - return hcl2lab(this).rgb(); - } - })); - - var A = -0.14861, - B = +1.78277, - C = -0.29227, - D = -0.90649, - E = +1.97294, - ED = E * D, - EB = E * B, - BC_DA = B * C - D * A; - - function cubehelixConvert(o) { - if (o instanceof Cubehelix) return new Cubehelix(o.h, o.s, o.l, o.opacity); - if (!(o instanceof Rgb)) o = rgbConvert(o); - var r = o.r / 255, - g = o.g / 255, - b = o.b / 255, - l = (BC_DA * b + ED * r - EB * g) / (BC_DA + ED - EB), - bl = b - l, - k = (E * (g - l) - C * bl) / D, - s = Math.sqrt(k * k + bl * bl) / (E * l * (1 - l)), // NaN if l=0 or l=1 - h = s ? Math.atan2(k, bl) * rad2deg - 120 : NaN; - return new Cubehelix(h < 0 ? h + 360 : h, s, l, o.opacity); - } - - function cubehelix(h, s, l, opacity) { - return arguments.length === 1 ? cubehelixConvert(h) : new Cubehelix(h, s, l, opacity == null ? 1 : opacity); - } - - function Cubehelix(h, s, l, opacity) { - this.h = +h; - this.s = +s; - this.l = +l; - this.opacity = +opacity; - } - - define(Cubehelix, cubehelix, extend(Color, { - brighter: function(k) { - k = k == null ? brighter : Math.pow(brighter, k); - return new Cubehelix(this.h, this.s, this.l * k, this.opacity); - }, - darker: function(k) { - k = k == null ? darker : Math.pow(darker, k); - return new Cubehelix(this.h, this.s, this.l * k, this.opacity); - }, - rgb: function() { - var h = isNaN(this.h) ? 0 : (this.h + 120) * deg2rad, - l = +this.l, - a = isNaN(this.s) ? 0 : this.s * l * (1 - l), - cosh = Math.cos(h), - sinh = Math.sin(h); - return new Rgb( - 255 * (l + a * (A * cosh + B * sinh)), - 255 * (l + a * (C * cosh + D * sinh)), - 255 * (l + a * (E * cosh)), - this.opacity - ); - } - })); - - function basis(t1, v0, v1, v2, v3) { - var t2 = t1 * t1, t3 = t2 * t1; - return ((1 - 3 * t1 + 3 * t2 - t3) * v0 - + (4 - 6 * t2 + 3 * t3) * v1 - + (1 + 3 * t1 + 3 * t2 - 3 * t3) * v2 - + t3 * v3) / 6; - } - - function basis$1(values) { - var n = values.length - 1; - return function(t) { - var i = t <= 0 ? (t = 0) : t >= 1 ? (t = 1, n - 1) : Math.floor(t * n), - v1 = values[i], - v2 = values[i + 1], - v0 = i > 0 ? values[i - 1] : 2 * v1 - v2, - v3 = i < n - 1 ? values[i + 2] : 2 * v2 - v1; - return basis((t - i / n) * n, v0, v1, v2, v3); - }; - } - - function basisClosed(values) { - var n = values.length; - return function(t) { - var i = Math.floor(((t %= 1) < 0 ? ++t : t) * n), - v0 = values[(i + n - 1) % n], - v1 = values[i % n], - v2 = values[(i + 1) % n], - v3 = values[(i + 2) % n]; - return basis((t - i / n) * n, v0, v1, v2, v3); - }; - } - - function constant$3(x) { - return function() { - return x; - }; - } - - function linear(a, d) { - return function(t) { - return a + t * d; - }; - } - - function exponential(a, b, y) { - return a = Math.pow(a, y), b = Math.pow(b, y) - a, y = 1 / y, function(t) { - return Math.pow(a + t * b, y); - }; - } - - function hue(a, b) { - var d = b - a; - return d ? linear(a, d > 180 || d < -180 ? d - 360 * Math.round(d / 360) : d) : constant$3(isNaN(a) ? b : a); - } - - function gamma(y) { - return (y = +y) === 1 ? nogamma : function(a, b) { - return b - a ? exponential(a, b, y) : constant$3(isNaN(a) ? b : a); - }; - } - - function nogamma(a, b) { - var d = b - a; - return d ? linear(a, d) : constant$3(isNaN(a) ? b : a); - } - - var interpolateRgb = (function rgbGamma(y) { - var color = gamma(y); - - function rgb$1(start, end) { - var r = color((start = rgb(start)).r, (end = rgb(end)).r), - g = color(start.g, end.g), - b = color(start.b, end.b), - opacity = nogamma(start.opacity, end.opacity); - return function(t) { - start.r = r(t); - start.g = g(t); - start.b = b(t); - start.opacity = opacity(t); - return start + ""; - }; - } - - rgb$1.gamma = rgbGamma; - - return rgb$1; - })(1); - - function rgbSpline(spline) { - return function(colors) { - var n = colors.length, - r = new Array(n), - g = new Array(n), - b = new Array(n), - i, color; - for (i = 0; i < n; ++i) { - color = rgb(colors[i]); - r[i] = color.r || 0; - g[i] = color.g || 0; - b[i] = color.b || 0; - } - r = spline(r); - g = spline(g); - b = spline(b); - color.opacity = 1; - return function(t) { - color.r = r(t); - color.g = g(t); - color.b = b(t); - return color + ""; - }; - }; - } - - var rgbBasis = rgbSpline(basis$1); - var rgbBasisClosed = rgbSpline(basisClosed); - - function numberArray(a, b) { - if (!b) b = []; - var n = a ? Math.min(b.length, a.length) : 0, - c = b.slice(), - i; - return function(t) { - for (i = 0; i < n; ++i) c[i] = a[i] * (1 - t) + b[i] * t; - return c; - }; - } - - function isNumberArray(x) { - return ArrayBuffer.isView(x) && !(x instanceof DataView); - } - - function array$1(a, b) { - return (isNumberArray(b) ? numberArray : genericArray)(a, b); - } - - function genericArray(a, b) { - var nb = b ? b.length : 0, - na = a ? Math.min(nb, a.length) : 0, - x = new Array(na), - c = new Array(nb), - i; - - for (i = 0; i < na; ++i) x[i] = interpolateValue(a[i], b[i]); - for (; i < nb; ++i) c[i] = b[i]; - - return function(t) { - for (i = 0; i < na; ++i) c[i] = x[i](t); - return c; - }; - } - - function date(a, b) { - var d = new Date; - return a = +a, b = +b, function(t) { - return d.setTime(a * (1 - t) + b * t), d; - }; - } - - function interpolateNumber(a, b) { - return a = +a, b = +b, function(t) { - return a * (1 - t) + b * t; - }; - } - - function object(a, b) { - var i = {}, - c = {}, - k; - - if (a === null || typeof a !== "object") a = {}; - if (b === null || typeof b !== "object") b = {}; - - for (k in b) { - if (k in a) { - i[k] = interpolateValue(a[k], b[k]); - } else { - c[k] = b[k]; - } - } - - return function(t) { - for (k in i) c[k] = i[k](t); - return c; - }; - } - - var reA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g, - reB = new RegExp(reA.source, "g"); - - function zero(b) { - return function() { - return b; - }; - } - - function one(b) { - return function(t) { - return b(t) + ""; - }; - } - - function interpolateString(a, b) { - var bi = reA.lastIndex = reB.lastIndex = 0, // scan index for next number in b - am, // current match in a - bm, // current match in b - bs, // string preceding current number in b, if any - i = -1, // index in s - s = [], // string constants and placeholders - q = []; // number interpolators - - // Coerce inputs to strings. - a = a + "", b = b + ""; - - // Interpolate pairs of numbers in a & b. - while ((am = reA.exec(a)) - && (bm = reB.exec(b))) { - if ((bs = bm.index) > bi) { // a string precedes the next number in b - bs = b.slice(bi, bs); - if (s[i]) s[i] += bs; // coalesce with previous string - else s[++i] = bs; - } - if ((am = am[0]) === (bm = bm[0])) { // numbers in a & b match - if (s[i]) s[i] += bm; // coalesce with previous string - else s[++i] = bm; - } else { // interpolate non-matching numbers - s[++i] = null; - q.push({i: i, x: interpolateNumber(am, bm)}); - } - bi = reB.lastIndex; - } - - // Add remains of b. - if (bi < b.length) { - bs = b.slice(bi); - if (s[i]) s[i] += bs; // coalesce with previous string - else s[++i] = bs; - } - - // Special optimization for only a single match. - // Otherwise, interpolate each of the numbers and rejoin the string. - return s.length < 2 ? (q[0] - ? one(q[0].x) - : zero(b)) - : (b = q.length, function(t) { - for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t); - return s.join(""); - }); - } - - function interpolateValue(a, b) { - var t = typeof b, c; - return b == null || t === "boolean" ? constant$3(b) - : (t === "number" ? interpolateNumber - : t === "string" ? ((c = color(b)) ? (b = c, interpolateRgb) : interpolateString) - : b instanceof color ? interpolateRgb - : b instanceof Date ? date - : isNumberArray(b) ? numberArray - : Array.isArray(b) ? genericArray - : typeof b.valueOf !== "function" && typeof b.toString !== "function" || isNaN(b) ? object - : interpolateNumber)(a, b); - } - - function discrete(range) { - var n = range.length; - return function(t) { - return range[Math.max(0, Math.min(n - 1, Math.floor(t * n)))]; - }; - } - - function hue$1(a, b) { - var i = hue(+a, +b); - return function(t) { - var x = i(t); - return x - 360 * Math.floor(x / 360); - }; - } - - function interpolateRound(a, b) { - return a = +a, b = +b, function(t) { - return Math.round(a * (1 - t) + b * t); - }; - } - - var degrees = 180 / Math.PI; - - var identity$2 = { - translateX: 0, - translateY: 0, - rotate: 0, - skewX: 0, - scaleX: 1, - scaleY: 1 - }; - - function decompose(a, b, c, d, e, f) { - var scaleX, scaleY, skewX; - if (scaleX = Math.sqrt(a * a + b * b)) a /= scaleX, b /= scaleX; - if (skewX = a * c + b * d) c -= a * skewX, d -= b * skewX; - if (scaleY = Math.sqrt(c * c + d * d)) c /= scaleY, d /= scaleY, skewX /= scaleY; - if (a * d < b * c) a = -a, b = -b, skewX = -skewX, scaleX = -scaleX; - return { - translateX: e, - translateY: f, - rotate: Math.atan2(b, a) * degrees, - skewX: Math.atan(skewX) * degrees, - scaleX: scaleX, - scaleY: scaleY - }; - } - - var cssNode, - cssRoot, - cssView, - svgNode; - - function parseCss(value) { - if (value === "none") return identity$2; - if (!cssNode) cssNode = document.createElement("DIV"), cssRoot = document.documentElement, cssView = document.defaultView; - cssNode.style.transform = value; - value = cssView.getComputedStyle(cssRoot.appendChild(cssNode), null).getPropertyValue("transform"); - cssRoot.removeChild(cssNode); - value = value.slice(7, -1).split(","); - return decompose(+value[0], +value[1], +value[2], +value[3], +value[4], +value[5]); - } - - function parseSvg(value) { - if (value == null) return identity$2; - if (!svgNode) svgNode = document.createElementNS("http://www.w3.org/2000/svg", "g"); - svgNode.setAttribute("transform", value); - if (!(value = svgNode.transform.baseVal.consolidate())) return identity$2; - value = value.matrix; - return decompose(value.a, value.b, value.c, value.d, value.e, value.f); - } - - function interpolateTransform(parse, pxComma, pxParen, degParen) { - - function pop(s) { - return s.length ? s.pop() + " " : ""; - } - - function translate(xa, ya, xb, yb, s, q) { - if (xa !== xb || ya !== yb) { - var i = s.push("translate(", null, pxComma, null, pxParen); - q.push({i: i - 4, x: interpolateNumber(xa, xb)}, {i: i - 2, x: interpolateNumber(ya, yb)}); - } else if (xb || yb) { - s.push("translate(" + xb + pxComma + yb + pxParen); - } - } - - function rotate(a, b, s, q) { - if (a !== b) { - if (a - b > 180) b += 360; else if (b - a > 180) a += 360; // shortest path - q.push({i: s.push(pop(s) + "rotate(", null, degParen) - 2, x: interpolateNumber(a, b)}); - } else if (b) { - s.push(pop(s) + "rotate(" + b + degParen); - } - } - - function skewX(a, b, s, q) { - if (a !== b) { - q.push({i: s.push(pop(s) + "skewX(", null, degParen) - 2, x: interpolateNumber(a, b)}); - } else if (b) { - s.push(pop(s) + "skewX(" + b + degParen); - } - } - - function scale(xa, ya, xb, yb, s, q) { - if (xa !== xb || ya !== yb) { - var i = s.push(pop(s) + "scale(", null, ",", null, ")"); - q.push({i: i - 4, x: interpolateNumber(xa, xb)}, {i: i - 2, x: interpolateNumber(ya, yb)}); - } else if (xb !== 1 || yb !== 1) { - s.push(pop(s) + "scale(" + xb + "," + yb + ")"); - } - } - - return function(a, b) { - var s = [], // string constants and placeholders - q = []; // number interpolators - a = parse(a), b = parse(b); - translate(a.translateX, a.translateY, b.translateX, b.translateY, s, q); - rotate(a.rotate, b.rotate, s, q); - skewX(a.skewX, b.skewX, s, q); - scale(a.scaleX, a.scaleY, b.scaleX, b.scaleY, s, q); - a = b = null; // gc - return function(t) { - var i = -1, n = q.length, o; - while (++i < n) s[(o = q[i]).i] = o.x(t); - return s.join(""); - }; - }; - } - - var interpolateTransformCss = interpolateTransform(parseCss, "px, ", "px)", "deg)"); - var interpolateTransformSvg = interpolateTransform(parseSvg, ", ", ")", ")"); - - var rho = Math.SQRT2, - rho2 = 2, - rho4 = 4, - epsilon2 = 1e-12; - - function cosh(x) { - return ((x = Math.exp(x)) + 1 / x) / 2; - } - - function sinh(x) { - return ((x = Math.exp(x)) - 1 / x) / 2; - } - - function tanh(x) { - return ((x = Math.exp(2 * x)) - 1) / (x + 1); - } - - // p0 = [ux0, uy0, w0] - // p1 = [ux1, uy1, w1] - function interpolateZoom(p0, p1) { - var ux0 = p0[0], uy0 = p0[1], w0 = p0[2], - ux1 = p1[0], uy1 = p1[1], w1 = p1[2], - dx = ux1 - ux0, - dy = uy1 - uy0, - d2 = dx * dx + dy * dy, - i, - S; - - // Special case for u0 ≅ u1. - if (d2 < epsilon2) { - S = Math.log(w1 / w0) / rho; - i = function(t) { - return [ - ux0 + t * dx, - uy0 + t * dy, - w0 * Math.exp(rho * t * S) - ]; - }; - } - - // General case. - else { - var d1 = Math.sqrt(d2), - b0 = (w1 * w1 - w0 * w0 + rho4 * d2) / (2 * w0 * rho2 * d1), - b1 = (w1 * w1 - w0 * w0 - rho4 * d2) / (2 * w1 * rho2 * d1), - r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0), - r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1); - S = (r1 - r0) / rho; - i = function(t) { - var s = t * S, - coshr0 = cosh(r0), - u = w0 / (rho2 * d1) * (coshr0 * tanh(rho * s + r0) - sinh(r0)); - return [ - ux0 + u * dx, - uy0 + u * dy, - w0 * coshr0 / cosh(rho * s + r0) - ]; - }; - } - - i.duration = S * 1000; - - return i; - } - - function hsl$1(hue) { - return function(start, end) { - var h = hue((start = hsl(start)).h, (end = hsl(end)).h), - s = nogamma(start.s, end.s), - l = nogamma(start.l, end.l), - opacity = nogamma(start.opacity, end.opacity); - return function(t) { - start.h = h(t); - start.s = s(t); - start.l = l(t); - start.opacity = opacity(t); - return start + ""; - }; - } - } - - var hsl$2 = hsl$1(hue); - var hslLong = hsl$1(nogamma); - - function lab$1(start, end) { - var l = nogamma((start = lab(start)).l, (end = lab(end)).l), - a = nogamma(start.a, end.a), - b = nogamma(start.b, end.b), - opacity = nogamma(start.opacity, end.opacity); - return function(t) { - start.l = l(t); - start.a = a(t); - start.b = b(t); - start.opacity = opacity(t); - return start + ""; - }; - } - - function hcl$1(hue) { - return function(start, end) { - var h = hue((start = hcl(start)).h, (end = hcl(end)).h), - c = nogamma(start.c, end.c), - l = nogamma(start.l, end.l), - opacity = nogamma(start.opacity, end.opacity); - return function(t) { - start.h = h(t); - start.c = c(t); - start.l = l(t); - start.opacity = opacity(t); - return start + ""; - }; - } - } - - var hcl$2 = hcl$1(hue); - var hclLong = hcl$1(nogamma); - - function cubehelix$1(hue) { - return (function cubehelixGamma(y) { - y = +y; - - function cubehelix$1(start, end) { - var h = hue((start = cubehelix(start)).h, (end = cubehelix(end)).h), - s = nogamma(start.s, end.s), - l = nogamma(start.l, end.l), - opacity = nogamma(start.opacity, end.opacity); - return function(t) { - start.h = h(t); - start.s = s(t); - start.l = l(Math.pow(t, y)); - start.opacity = opacity(t); - return start + ""; - }; - } - - cubehelix$1.gamma = cubehelixGamma; - - return cubehelix$1; - })(1); - } - - var cubehelix$2 = cubehelix$1(hue); - var cubehelixLong = cubehelix$1(nogamma); - - function piecewise(interpolate, values) { - var i = 0, n = values.length - 1, v = values[0], I = new Array(n < 0 ? 0 : n); - while (i < n) I[i] = interpolate(v, v = values[++i]); - return function(t) { - var i = Math.max(0, Math.min(n - 1, Math.floor(t *= n))); - return I[i](t - i); - }; - } - - function quantize(interpolator, n) { - var samples = new Array(n); - for (var i = 0; i < n; ++i) samples[i] = interpolator(i / (n - 1)); - return samples; - } - - var frame = 0, // is an animation frame pending? - timeout = 0, // is a timeout pending? - interval = 0, // are any timers active? - pokeDelay = 1000, // how frequently we check for clock skew - taskHead, - taskTail, - clockLast = 0, - clockNow = 0, - clockSkew = 0, - clock = typeof performance === "object" && performance.now ? performance : Date, - setFrame = typeof window === "object" && window.requestAnimationFrame ? window.requestAnimationFrame.bind(window) : function(f) { setTimeout(f, 17); }; - - function now() { - return clockNow || (setFrame(clearNow), clockNow = clock.now() + clockSkew); - } - - function clearNow() { - clockNow = 0; - } - - function Timer() { - this._call = - this._time = - this._next = null; - } - - Timer.prototype = timer.prototype = { - constructor: Timer, - restart: function(callback, delay, time) { - if (typeof callback !== "function") throw new TypeError("callback is not a function"); - time = (time == null ? now() : +time) + (delay == null ? 0 : +delay); - if (!this._next && taskTail !== this) { - if (taskTail) taskTail._next = this; - else taskHead = this; - taskTail = this; - } - this._call = callback; - this._time = time; - sleep(); - }, - stop: function() { - if (this._call) { - this._call = null; - this._time = Infinity; - sleep(); - } - } - }; - - function timer(callback, delay, time) { - var t = new Timer; - t.restart(callback, delay, time); - return t; - } - - function timerFlush() { - now(); // Get the current time, if not already set. - ++frame; // Pretend we’ve set an alarm, if we haven’t already. - var t = taskHead, e; - while (t) { - if ((e = clockNow - t._time) >= 0) t._call.call(null, e); - t = t._next; - } - --frame; - } - - function wake() { - clockNow = (clockLast = clock.now()) + clockSkew; - frame = timeout = 0; - try { - timerFlush(); - } finally { - frame = 0; - nap(); - clockNow = 0; - } - } - - function poke() { - var now = clock.now(), delay = now - clockLast; - if (delay > pokeDelay) clockSkew -= delay, clockLast = now; - } - - function nap() { - var t0, t1 = taskHead, t2, time = Infinity; - while (t1) { - if (t1._call) { - if (time > t1._time) time = t1._time; - t0 = t1, t1 = t1._next; - } else { - t2 = t1._next, t1._next = null; - t1 = t0 ? t0._next = t2 : taskHead = t2; - } - } - taskTail = t0; - sleep(time); - } - - function sleep(time) { - if (frame) return; // Soonest alarm already set, or will be. - if (timeout) timeout = clearTimeout(timeout); - var delay = time - clockNow; // Strictly less than if we recomputed clockNow. - if (delay > 24) { - if (time < Infinity) timeout = setTimeout(wake, time - clock.now() - clockSkew); - if (interval) interval = clearInterval(interval); - } else { - if (!interval) clockLast = clock.now(), interval = setInterval(poke, pokeDelay); - frame = 1, setFrame(wake); - } - } - - function timeout$1(callback, delay, time) { - var t = new Timer; - delay = delay == null ? 0 : +delay; - t.restart(function(elapsed) { - t.stop(); - callback(elapsed + delay); - }, delay, time); - return t; - } - - function interval$1(callback, delay, time) { - var t = new Timer, total = delay; - if (delay == null) return t.restart(callback, delay, time), t; - delay = +delay, time = time == null ? now() : +time; - t.restart(function tick(elapsed) { - elapsed += total; - t.restart(tick, total += delay, time); - callback(elapsed); - }, delay, time); - return t; - } - - var emptyOn = dispatch("start", "end", "cancel", "interrupt"); - var emptyTween = []; - - var CREATED = 0; - var SCHEDULED = 1; - var STARTING = 2; - var STARTED = 3; - var RUNNING = 4; - var ENDING = 5; - var ENDED = 6; - - function schedule(node, name, id, index, group, timing) { - var schedules = node.__transition; - if (!schedules) node.__transition = {}; - else if (id in schedules) return; - create$1(node, id, { - name: name, - index: index, // For context during callback. - group: group, // For context during callback. - on: emptyOn, - tween: emptyTween, - time: timing.time, - delay: timing.delay, - duration: timing.duration, - ease: timing.ease, - timer: null, - state: CREATED - }); - } - - function init(node, id) { - var schedule = get$1(node, id); - if (schedule.state > CREATED) throw new Error("too late; already scheduled"); - return schedule; - } - - function set$1(node, id) { - var schedule = get$1(node, id); - if (schedule.state > STARTED) throw new Error("too late; already running"); - return schedule; - } - - function get$1(node, id) { - var schedule = node.__transition; - if (!schedule || !(schedule = schedule[id])) throw new Error("transition not found"); - return schedule; - } - - function create$1(node, id, self) { - var schedules = node.__transition, - tween; - - // Initialize the self timer when the transition is created. - // Note the actual delay is not known until the first callback! - schedules[id] = self; - self.timer = timer(schedule, 0, self.time); - - function schedule(elapsed) { - self.state = SCHEDULED; - self.timer.restart(start, self.delay, self.time); - - // If the elapsed delay is less than our first sleep, start immediately. - if (self.delay <= elapsed) start(elapsed - self.delay); - } - - function start(elapsed) { - var i, j, n, o; - - // If the state is not SCHEDULED, then we previously errored on start. - if (self.state !== SCHEDULED) return stop(); - - for (i in schedules) { - o = schedules[i]; - if (o.name !== self.name) continue; - - // While this element already has a starting transition during this frame, - // defer starting an interrupting transition until that transition has a - // chance to tick (and possibly end); see d3/d3-transition#54! - if (o.state === STARTED) return timeout$1(start); - - // Interrupt the active transition, if any. - if (o.state === RUNNING) { - o.state = ENDED; - o.timer.stop(); - o.on.call("interrupt", node, node.__data__, o.index, o.group); - delete schedules[i]; - } - - // Cancel any pre-empted transitions. - else if (+i < id) { - o.state = ENDED; - o.timer.stop(); - o.on.call("cancel", node, node.__data__, o.index, o.group); - delete schedules[i]; - } - } - - // Defer the first tick to end of the current frame; see d3/d3#1576. - // Note the transition may be canceled after start and before the first tick! - // Note this must be scheduled before the start event; see d3/d3-transition#16! - // Assuming this is successful, subsequent callbacks go straight to tick. - timeout$1(function() { - if (self.state === STARTED) { - self.state = RUNNING; - self.timer.restart(tick, self.delay, self.time); - tick(elapsed); - } - }); - - // Dispatch the start event. - // Note this must be done before the tween are initialized. - self.state = STARTING; - self.on.call("start", node, node.__data__, self.index, self.group); - if (self.state !== STARTING) return; // interrupted - self.state = STARTED; - - // Initialize the tween, deleting null tween. - tween = new Array(n = self.tween.length); - for (i = 0, j = -1; i < n; ++i) { - if (o = self.tween[i].value.call(node, node.__data__, self.index, self.group)) { - tween[++j] = o; - } - } - tween.length = j + 1; - } - - function tick(elapsed) { - var t = elapsed < self.duration ? self.ease.call(null, elapsed / self.duration) : (self.timer.restart(stop), self.state = ENDING, 1), - i = -1, - n = tween.length; - - while (++i < n) { - tween[i].call(node, t); - } - - // Dispatch the end event. - if (self.state === ENDING) { - self.on.call("end", node, node.__data__, self.index, self.group); - stop(); - } - } - - function stop() { - self.state = ENDED; - self.timer.stop(); - delete schedules[id]; - for (var i in schedules) return; // eslint-disable-line no-unused-vars - delete node.__transition; - } - } - - function interrupt(node, name) { - var schedules = node.__transition, - schedule, - active, - empty = true, - i; - - if (!schedules) return; - - name = name == null ? null : name + ""; - - for (i in schedules) { - if ((schedule = schedules[i]).name !== name) { empty = false; continue; } - active = schedule.state > STARTING && schedule.state < ENDING; - schedule.state = ENDED; - schedule.timer.stop(); - schedule.on.call(active ? "interrupt" : "cancel", node, node.__data__, schedule.index, schedule.group); - delete schedules[i]; - } - - if (empty) delete node.__transition; - } - - function selection_interrupt(name) { - return this.each(function() { - interrupt(this, name); - }); - } - - function tweenRemove(id, name) { - var tween0, tween1; - return function() { - var schedule = set$1(this, id), - tween = schedule.tween; - - // If this node shared tween with the previous node, - // just assign the updated shared tween and we’re done! - // Otherwise, copy-on-write. - if (tween !== tween0) { - tween1 = tween0 = tween; - for (var i = 0, n = tween1.length; i < n; ++i) { - if (tween1[i].name === name) { - tween1 = tween1.slice(); - tween1.splice(i, 1); - break; - } - } - } - - schedule.tween = tween1; - }; - } - - function tweenFunction(id, name, value) { - var tween0, tween1; - if (typeof value !== "function") throw new Error; - return function() { - var schedule = set$1(this, id), - tween = schedule.tween; - - // If this node shared tween with the previous node, - // just assign the updated shared tween and we’re done! - // Otherwise, copy-on-write. - if (tween !== tween0) { - tween1 = (tween0 = tween).slice(); - for (var t = {name: name, value: value}, i = 0, n = tween1.length; i < n; ++i) { - if (tween1[i].name === name) { - tween1[i] = t; - break; - } - } - if (i === n) tween1.push(t); - } - - schedule.tween = tween1; - }; - } - - function transition_tween(name, value) { - var id = this._id; - - name += ""; - - if (arguments.length < 2) { - var tween = get$1(this.node(), id).tween; - for (var i = 0, n = tween.length, t; i < n; ++i) { - if ((t = tween[i]).name === name) { - return t.value; - } - } - return null; - } - - return this.each((value == null ? tweenRemove : tweenFunction)(id, name, value)); - } - - function tweenValue(transition, name, value) { - var id = transition._id; - - transition.each(function() { - var schedule = set$1(this, id); - (schedule.value || (schedule.value = {}))[name] = value.apply(this, arguments); - }); - - return function(node) { - return get$1(node, id).value[name]; - }; - } - - function interpolate(a, b) { - var c; - return (typeof b === "number" ? interpolateNumber - : b instanceof color ? interpolateRgb - : (c = color(b)) ? (b = c, interpolateRgb) - : interpolateString)(a, b); - } - - function attrRemove$1(name) { - return function() { - this.removeAttribute(name); - }; - } - - function attrRemoveNS$1(fullname) { - return function() { - this.removeAttributeNS(fullname.space, fullname.local); - }; - } - - function attrConstant$1(name, interpolate, value1) { - var string00, - string1 = value1 + "", - interpolate0; - return function() { - var string0 = this.getAttribute(name); - return string0 === string1 ? null - : string0 === string00 ? interpolate0 - : interpolate0 = interpolate(string00 = string0, value1); - }; - } - - function attrConstantNS$1(fullname, interpolate, value1) { - var string00, - string1 = value1 + "", - interpolate0; - return function() { - var string0 = this.getAttributeNS(fullname.space, fullname.local); - return string0 === string1 ? null - : string0 === string00 ? interpolate0 - : interpolate0 = interpolate(string00 = string0, value1); - }; - } - - function attrFunction$1(name, interpolate, value) { - var string00, - string10, - interpolate0; - return function() { - var string0, value1 = value(this), string1; - if (value1 == null) return void this.removeAttribute(name); - string0 = this.getAttribute(name); - string1 = value1 + ""; - return string0 === string1 ? null - : string0 === string00 && string1 === string10 ? interpolate0 - : (string10 = string1, interpolate0 = interpolate(string00 = string0, value1)); - }; - } - - function attrFunctionNS$1(fullname, interpolate, value) { - var string00, - string10, - interpolate0; - return function() { - var string0, value1 = value(this), string1; - if (value1 == null) return void this.removeAttributeNS(fullname.space, fullname.local); - string0 = this.getAttributeNS(fullname.space, fullname.local); - string1 = value1 + ""; - return string0 === string1 ? null - : string0 === string00 && string1 === string10 ? interpolate0 - : (string10 = string1, interpolate0 = interpolate(string00 = string0, value1)); - }; - } - - function transition_attr(name, value) { - var fullname = namespace(name), i = fullname === "transform" ? interpolateTransformSvg : interpolate; - return this.attrTween(name, typeof value === "function" - ? (fullname.local ? attrFunctionNS$1 : attrFunction$1)(fullname, i, tweenValue(this, "attr." + name, value)) - : value == null ? (fullname.local ? attrRemoveNS$1 : attrRemove$1)(fullname) - : (fullname.local ? attrConstantNS$1 : attrConstant$1)(fullname, i, value)); - } - - function attrInterpolate(name, i) { - return function(t) { - this.setAttribute(name, i.call(this, t)); - }; - } - - function attrInterpolateNS(fullname, i) { - return function(t) { - this.setAttributeNS(fullname.space, fullname.local, i.call(this, t)); - }; - } - - function attrTweenNS(fullname, value) { - var t0, i0; - function tween() { - var i = value.apply(this, arguments); - if (i !== i0) t0 = (i0 = i) && attrInterpolateNS(fullname, i); - return t0; - } - tween._value = value; - return tween; - } - - function attrTween(name, value) { - var t0, i0; - function tween() { - var i = value.apply(this, arguments); - if (i !== i0) t0 = (i0 = i) && attrInterpolate(name, i); - return t0; - } - tween._value = value; - return tween; - } - - function transition_attrTween(name, value) { - var key = "attr." + name; - if (arguments.length < 2) return (key = this.tween(key)) && key._value; - if (value == null) return this.tween(key, null); - if (typeof value !== "function") throw new Error; - var fullname = namespace(name); - return this.tween(key, (fullname.local ? attrTweenNS : attrTween)(fullname, value)); - } - - function delayFunction(id, value) { - return function() { - init(this, id).delay = +value.apply(this, arguments); - }; - } - - function delayConstant(id, value) { - return value = +value, function() { - init(this, id).delay = value; - }; - } - - function transition_delay(value) { - var id = this._id; - - return arguments.length - ? this.each((typeof value === "function" - ? delayFunction - : delayConstant)(id, value)) - : get$1(this.node(), id).delay; - } - - function durationFunction(id, value) { - return function() { - set$1(this, id).duration = +value.apply(this, arguments); - }; - } - - function durationConstant(id, value) { - return value = +value, function() { - set$1(this, id).duration = value; - }; - } - - function transition_duration(value) { - var id = this._id; - - return arguments.length - ? this.each((typeof value === "function" - ? durationFunction - : durationConstant)(id, value)) - : get$1(this.node(), id).duration; - } - - function easeConstant(id, value) { - if (typeof value !== "function") throw new Error; - return function() { - set$1(this, id).ease = value; - }; - } - - function transition_ease(value) { - var id = this._id; - - return arguments.length - ? this.each(easeConstant(id, value)) - : get$1(this.node(), id).ease; - } - - function transition_filter(match) { - if (typeof match !== "function") match = matcher(match); - - for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) { - if ((node = group[i]) && match.call(node, node.__data__, i, group)) { - subgroup.push(node); - } - } - } - - return new Transition(subgroups, this._parents, this._name, this._id); - } - - function transition_merge(transition) { - if (transition._id !== this._id) throw new Error; - - for (var groups0 = this._groups, groups1 = transition._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) { - for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) { - if (node = group0[i] || group1[i]) { - merge[i] = node; - } - } - } - - for (; j < m0; ++j) { - merges[j] = groups0[j]; - } - - return new Transition(merges, this._parents, this._name, this._id); - } - - function start(name) { - return (name + "").trim().split(/^|\s+/).every(function(t) { - var i = t.indexOf("."); - if (i >= 0) t = t.slice(0, i); - return !t || t === "start"; - }); - } - - function onFunction(id, name, listener) { - var on0, on1, sit = start(name) ? init : set$1; - return function() { - var schedule = sit(this, id), - on = schedule.on; - - // If this node shared a dispatch with the previous node, - // just assign the updated shared dispatch and we’re done! - // Otherwise, copy-on-write. - if (on !== on0) (on1 = (on0 = on).copy()).on(name, listener); - - schedule.on = on1; - }; - } - - function transition_on(name, listener) { - var id = this._id; - - return arguments.length < 2 - ? get$1(this.node(), id).on.on(name) - : this.each(onFunction(id, name, listener)); - } - - function removeFunction(id) { - return function() { - var parent = this.parentNode; - for (var i in this.__transition) if (+i !== id) return; - if (parent) parent.removeChild(this); - }; - } - - function transition_remove() { - return this.on("end.remove", removeFunction(this._id)); - } - - function transition_select(select) { - var name = this._name, - id = this._id; - - if (typeof select !== "function") select = selector(select); - - for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) { - if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) { - if ("__data__" in node) subnode.__data__ = node.__data__; - subgroup[i] = subnode; - schedule(subgroup[i], name, id, i, subgroup, get$1(node, id)); - } - } - } - - return new Transition(subgroups, this._parents, name, id); - } - - function transition_selectAll(select) { - var name = this._name, - id = this._id; - - if (typeof select !== "function") select = selectorAll(select); - - for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { - if (node = group[i]) { - for (var children = select.call(node, node.__data__, i, group), child, inherit = get$1(node, id), k = 0, l = children.length; k < l; ++k) { - if (child = children[k]) { - schedule(child, name, id, k, children, inherit); - } - } - subgroups.push(children); - parents.push(node); - } - } - } - - return new Transition(subgroups, parents, name, id); - } - - var Selection$1 = selection.prototype.constructor; - - function transition_selection() { - return new Selection$1(this._groups, this._parents); - } - - function styleNull(name, interpolate) { - var string00, - string10, - interpolate0; - return function() { - var string0 = styleValue(this, name), - string1 = (this.style.removeProperty(name), styleValue(this, name)); - return string0 === string1 ? null - : string0 === string00 && string1 === string10 ? interpolate0 - : interpolate0 = interpolate(string00 = string0, string10 = string1); - }; - } - - function styleRemove$1(name) { - return function() { - this.style.removeProperty(name); - }; - } - - function styleConstant$1(name, interpolate, value1) { - var string00, - string1 = value1 + "", - interpolate0; - return function() { - var string0 = styleValue(this, name); - return string0 === string1 ? null - : string0 === string00 ? interpolate0 - : interpolate0 = interpolate(string00 = string0, value1); - }; - } - - function styleFunction$1(name, interpolate, value) { - var string00, - string10, - interpolate0; - return function() { - var string0 = styleValue(this, name), - value1 = value(this), - string1 = value1 + ""; - if (value1 == null) string1 = value1 = (this.style.removeProperty(name), styleValue(this, name)); - return string0 === string1 ? null - : string0 === string00 && string1 === string10 ? interpolate0 - : (string10 = string1, interpolate0 = interpolate(string00 = string0, value1)); - }; - } - - function styleMaybeRemove(id, name) { - var on0, on1, listener0, key = "style." + name, event = "end." + key, remove; - return function() { - var schedule = set$1(this, id), - on = schedule.on, - listener = schedule.value[key] == null ? remove || (remove = styleRemove$1(name)) : undefined; - - // If this node shared a dispatch with the previous node, - // just assign the updated shared dispatch and we’re done! - // Otherwise, copy-on-write. - if (on !== on0 || listener0 !== listener) (on1 = (on0 = on).copy()).on(event, listener0 = listener); - - schedule.on = on1; - }; - } - - function transition_style(name, value, priority) { - var i = (name += "") === "transform" ? interpolateTransformCss : interpolate; - return value == null ? this - .styleTween(name, styleNull(name, i)) - .on("end.style." + name, styleRemove$1(name)) - : typeof value === "function" ? this - .styleTween(name, styleFunction$1(name, i, tweenValue(this, "style." + name, value))) - .each(styleMaybeRemove(this._id, name)) - : this - .styleTween(name, styleConstant$1(name, i, value), priority) - .on("end.style." + name, null); - } - - function styleInterpolate(name, i, priority) { - return function(t) { - this.style.setProperty(name, i.call(this, t), priority); - }; - } - - function styleTween(name, value, priority) { - var t, i0; - function tween() { - var i = value.apply(this, arguments); - if (i !== i0) t = (i0 = i) && styleInterpolate(name, i, priority); - return t; - } - tween._value = value; - return tween; - } - - function transition_styleTween(name, value, priority) { - var key = "style." + (name += ""); - if (arguments.length < 2) return (key = this.tween(key)) && key._value; - if (value == null) return this.tween(key, null); - if (typeof value !== "function") throw new Error; - return this.tween(key, styleTween(name, value, priority == null ? "" : priority)); - } - - function textConstant$1(value) { - return function() { - this.textContent = value; - }; - } - - function textFunction$1(value) { - return function() { - var value1 = value(this); - this.textContent = value1 == null ? "" : value1; - }; - } - - function transition_text(value) { - return this.tween("text", typeof value === "function" - ? textFunction$1(tweenValue(this, "text", value)) - : textConstant$1(value == null ? "" : value + "")); - } - - function textInterpolate(i) { - return function(t) { - this.textContent = i.call(this, t); - }; - } - - function textTween(value) { - var t0, i0; - function tween() { - var i = value.apply(this, arguments); - if (i !== i0) t0 = (i0 = i) && textInterpolate(i); - return t0; - } - tween._value = value; - return tween; - } - - function transition_textTween(value) { - var key = "text"; - if (arguments.length < 1) return (key = this.tween(key)) && key._value; - if (value == null) return this.tween(key, null); - if (typeof value !== "function") throw new Error; - return this.tween(key, textTween(value)); - } - - function transition_transition() { - var name = this._name, - id0 = this._id, - id1 = newId(); - - for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { - if (node = group[i]) { - var inherit = get$1(node, id0); - schedule(node, name, id1, i, group, { - time: inherit.time + inherit.delay + inherit.duration, - delay: 0, - duration: inherit.duration, - ease: inherit.ease - }); - } - } - } - - return new Transition(groups, this._parents, name, id1); - } - - function transition_end() { - var on0, on1, that = this, id = that._id, size = that.size(); - return new Promise(function(resolve, reject) { - var cancel = {value: reject}, - end = {value: function() { if (--size === 0) resolve(); }}; - - that.each(function() { - var schedule = set$1(this, id), - on = schedule.on; - - // If this node shared a dispatch with the previous node, - // just assign the updated shared dispatch and we’re done! - // Otherwise, copy-on-write. - if (on !== on0) { - on1 = (on0 = on).copy(); - on1._.cancel.push(cancel); - on1._.interrupt.push(cancel); - on1._.end.push(end); - } - - schedule.on = on1; - }); - }); - } - - var id = 0; - - function Transition(groups, parents, name, id) { - this._groups = groups; - this._parents = parents; - this._name = name; - this._id = id; - } - - function transition(name) { - return selection().transition(name); - } - - function newId() { - return ++id; - } - - var selection_prototype = selection.prototype; - - Transition.prototype = transition.prototype = { - constructor: Transition, - select: transition_select, - selectAll: transition_selectAll, - filter: transition_filter, - merge: transition_merge, - selection: transition_selection, - transition: transition_transition, - call: selection_prototype.call, - nodes: selection_prototype.nodes, - node: selection_prototype.node, - size: selection_prototype.size, - empty: selection_prototype.empty, - each: selection_prototype.each, - on: transition_on, - attr: transition_attr, - attrTween: transition_attrTween, - style: transition_style, - styleTween: transition_styleTween, - text: transition_text, - textTween: transition_textTween, - remove: transition_remove, - tween: transition_tween, - delay: transition_delay, - duration: transition_duration, - ease: transition_ease, - end: transition_end - }; - - function linear$1(t) { - return +t; - } - - function quadIn(t) { - return t * t; - } - - function quadOut(t) { - return t * (2 - t); - } - - function quadInOut(t) { - return ((t *= 2) <= 1 ? t * t : --t * (2 - t) + 1) / 2; - } - - function cubicIn(t) { - return t * t * t; - } - - function cubicOut(t) { - return --t * t * t + 1; - } - - function cubicInOut(t) { - return ((t *= 2) <= 1 ? t * t * t : (t -= 2) * t * t + 2) / 2; - } - - var exponent = 3; - - var polyIn = (function custom(e) { - e = +e; - - function polyIn(t) { - return Math.pow(t, e); - } - - polyIn.exponent = custom; - - return polyIn; - })(exponent); - - var polyOut = (function custom(e) { - e = +e; - - function polyOut(t) { - return 1 - Math.pow(1 - t, e); - } - - polyOut.exponent = custom; - - return polyOut; - })(exponent); - - var polyInOut = (function custom(e) { - e = +e; - - function polyInOut(t) { - return ((t *= 2) <= 1 ? Math.pow(t, e) : 2 - Math.pow(2 - t, e)) / 2; - } - - polyInOut.exponent = custom; - - return polyInOut; - })(exponent); - - var pi = Math.PI, - halfPi = pi / 2; - - function sinIn(t) { - return 1 - Math.cos(t * halfPi); - } - - function sinOut(t) { - return Math.sin(t * halfPi); - } - - function sinInOut(t) { - return (1 - Math.cos(pi * t)) / 2; - } - - function expIn(t) { - return Math.pow(2, 10 * t - 10); - } - - function expOut(t) { - return 1 - Math.pow(2, -10 * t); - } - - function expInOut(t) { - return ((t *= 2) <= 1 ? Math.pow(2, 10 * t - 10) : 2 - Math.pow(2, 10 - 10 * t)) / 2; - } - - function circleIn(t) { - return 1 - Math.sqrt(1 - t * t); - } - - function circleOut(t) { - return Math.sqrt(1 - --t * t); - } - - function circleInOut(t) { - return ((t *= 2) <= 1 ? 1 - Math.sqrt(1 - t * t) : Math.sqrt(1 - (t -= 2) * t) + 1) / 2; - } - - var b1 = 4 / 11, - b2 = 6 / 11, - b3 = 8 / 11, - b4 = 3 / 4, - b5 = 9 / 11, - b6 = 10 / 11, - b7 = 15 / 16, - b8 = 21 / 22, - b9 = 63 / 64, - b0 = 1 / b1 / b1; - - function bounceIn(t) { - return 1 - bounceOut(1 - t); - } - - function bounceOut(t) { - return (t = +t) < b1 ? b0 * t * t : t < b3 ? b0 * (t -= b2) * t + b4 : t < b6 ? b0 * (t -= b5) * t + b7 : b0 * (t -= b8) * t + b9; - } - - function bounceInOut(t) { - return ((t *= 2) <= 1 ? 1 - bounceOut(1 - t) : bounceOut(t - 1) + 1) / 2; - } - - var overshoot = 1.70158; - - var backIn = (function custom(s) { - s = +s; - - function backIn(t) { - return t * t * ((s + 1) * t - s); - } - - backIn.overshoot = custom; - - return backIn; - })(overshoot); - - var backOut = (function custom(s) { - s = +s; - - function backOut(t) { - return --t * t * ((s + 1) * t + s) + 1; - } - - backOut.overshoot = custom; - - return backOut; - })(overshoot); - - var backInOut = (function custom(s) { - s = +s; - - function backInOut(t) { - return ((t *= 2) < 1 ? t * t * ((s + 1) * t - s) : (t -= 2) * t * ((s + 1) * t + s) + 2) / 2; - } - - backInOut.overshoot = custom; - - return backInOut; - })(overshoot); - - var tau = 2 * Math.PI, - amplitude = 1, - period = 0.3; - - var elasticIn = (function custom(a, p) { - var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau); - - function elasticIn(t) { - return a * Math.pow(2, 10 * --t) * Math.sin((s - t) / p); - } - - elasticIn.amplitude = function(a) { return custom(a, p * tau); }; - elasticIn.period = function(p) { return custom(a, p); }; - - return elasticIn; - })(amplitude, period); - - var elasticOut = (function custom(a, p) { - var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau); - - function elasticOut(t) { - return 1 - a * Math.pow(2, -10 * (t = +t)) * Math.sin((t + s) / p); - } - - elasticOut.amplitude = function(a) { return custom(a, p * tau); }; - elasticOut.period = function(p) { return custom(a, p); }; - - return elasticOut; - })(amplitude, period); - - var elasticInOut = (function custom(a, p) { - var s = Math.asin(1 / (a = Math.max(1, a))) * (p /= tau); - - function elasticInOut(t) { - return ((t = t * 2 - 1) < 0 - ? a * Math.pow(2, 10 * t) * Math.sin((s - t) / p) - : 2 - a * Math.pow(2, -10 * t) * Math.sin((s + t) / p)) / 2; - } - - elasticInOut.amplitude = function(a) { return custom(a, p * tau); }; - elasticInOut.period = function(p) { return custom(a, p); }; - - return elasticInOut; - })(amplitude, period); - - var defaultTiming = { - time: null, // Set on use. - delay: 0, - duration: 250, - ease: cubicInOut - }; - - function inherit(node, id) { - var timing; - while (!(timing = node.__transition) || !(timing = timing[id])) { - if (!(node = node.parentNode)) { - return defaultTiming.time = now(), defaultTiming; - } - } - return timing; - } - - function selection_transition(name) { - var id, - timing; - - if (name instanceof Transition) { - id = name._id, name = name._name; - } else { - id = newId(), (timing = defaultTiming).time = now(), name = name == null ? null : name + ""; - } - - for (var groups = this._groups, m = groups.length, j = 0; j < m; ++j) { - for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) { - if (node = group[i]) { - schedule(node, name, id, i, group, timing || inherit(node, id)); - } - } - } - - return new Transition(groups, this._parents, name, id); - } - - selection.prototype.interrupt = selection_interrupt; - selection.prototype.transition = selection_transition; - - var root$1 = [null]; - - function active(node, name) { - var schedules = node.__transition, - schedule, - i; - - if (schedules) { - name = name == null ? null : name + ""; - for (i in schedules) { - if ((schedule = schedules[i]).state > SCHEDULED && schedule.name === name) { - return new Transition([[node]], root$1, name, +i); - } - } - } - - return null; - } - - function constant$4(x) { - return function() { - return x; - }; - } - - function BrushEvent(target, type, selection) { - this.target = target; - this.type = type; - this.selection = selection; - } - - function nopropagation$1() { - event.stopImmediatePropagation(); - } - - function noevent$1() { - event.preventDefault(); - event.stopImmediatePropagation(); - } - - var MODE_DRAG = {name: "drag"}, - MODE_SPACE = {name: "space"}, - MODE_HANDLE = {name: "handle"}, - MODE_CENTER = {name: "center"}; - - function number1(e) { - return [+e[0], +e[1]]; - } - - function number2(e) { - return [number1(e[0]), number1(e[1])]; - } - - function toucher(identifier) { - return function(target) { - return touch(target, event.touches, identifier); - }; - } - - var X = { - name: "x", - handles: ["w", "e"].map(type), - input: function(x, e) { return x == null ? null : [[+x[0], e[0][1]], [+x[1], e[1][1]]]; }, - output: function(xy) { return xy && [xy[0][0], xy[1][0]]; } - }; - - var Y = { - name: "y", - handles: ["n", "s"].map(type), - input: function(y, e) { return y == null ? null : [[e[0][0], +y[0]], [e[1][0], +y[1]]]; }, - output: function(xy) { return xy && [xy[0][1], xy[1][1]]; } - }; - - var XY = { - name: "xy", - handles: ["n", "w", "e", "s", "nw", "ne", "sw", "se"].map(type), - input: function(xy) { return xy == null ? null : number2(xy); }, - output: function(xy) { return xy; } - }; - - var cursors = { - overlay: "crosshair", - selection: "move", - n: "ns-resize", - e: "ew-resize", - s: "ns-resize", - w: "ew-resize", - nw: "nwse-resize", - ne: "nesw-resize", - se: "nwse-resize", - sw: "nesw-resize" - }; - - var flipX = { - e: "w", - w: "e", - nw: "ne", - ne: "nw", - se: "sw", - sw: "se" - }; - - var flipY = { - n: "s", - s: "n", - nw: "sw", - ne: "se", - se: "ne", - sw: "nw" - }; - - var signsX = { - overlay: +1, - selection: +1, - n: null, - e: +1, - s: null, - w: -1, - nw: -1, - ne: +1, - se: +1, - sw: -1 - }; - - var signsY = { - overlay: +1, - selection: +1, - n: -1, - e: null, - s: +1, - w: null, - nw: -1, - ne: -1, - se: +1, - sw: +1 - }; - - function type(t) { - return {type: t}; - } - - // Ignore right-click, since that should open the context menu. - function defaultFilter$1() { - return !event.ctrlKey && !event.button; - } - - function defaultExtent() { - var svg = this.ownerSVGElement || this; - if (svg.hasAttribute("viewBox")) { - svg = svg.viewBox.baseVal; - return [[svg.x, svg.y], [svg.x + svg.width, svg.y + svg.height]]; - } - return [[0, 0], [svg.width.baseVal.value, svg.height.baseVal.value]]; - } - - function defaultTouchable$1() { - return navigator.maxTouchPoints || ("ontouchstart" in this); - } - - // Like d3.local, but with the name “__brush” rather than auto-generated. - function local$1(node) { - while (!node.__brush) if (!(node = node.parentNode)) return; - return node.__brush; - } - - function empty$1(extent) { - return extent[0][0] === extent[1][0] - || extent[0][1] === extent[1][1]; - } - - function brushSelection(node) { - var state = node.__brush; - return state ? state.dim.output(state.selection) : null; - } - - function brushX() { - return brush$1(X); - } - - function brushY() { - return brush$1(Y); - } - - function brush() { - return brush$1(XY); - } - - function brush$1(dim) { - var extent = defaultExtent, - filter = defaultFilter$1, - touchable = defaultTouchable$1, - keys = true, - listeners = dispatch("start", "brush", "end"), - handleSize = 6, - touchending; - - function brush(group) { - var overlay = group - .property("__brush", initialize) - .selectAll(".overlay") - .data([type("overlay")]); - - overlay.enter().append("rect") - .attr("class", "overlay") - .attr("pointer-events", "all") - .attr("cursor", cursors.overlay) - .merge(overlay) - .each(function() { - var extent = local$1(this).extent; - select(this) - .attr("x", extent[0][0]) - .attr("y", extent[0][1]) - .attr("width", extent[1][0] - extent[0][0]) - .attr("height", extent[1][1] - extent[0][1]); - }); - - group.selectAll(".selection") - .data([type("selection")]) - .enter().append("rect") - .attr("class", "selection") - .attr("cursor", cursors.selection) - .attr("fill", "#777") - .attr("fill-opacity", 0.3) - .attr("stroke", "#fff") - .attr("shape-rendering", "crispEdges"); - - var handle = group.selectAll(".handle") - .data(dim.handles, function(d) { return d.type; }); - - handle.exit().remove(); - - handle.enter().append("rect") - .attr("class", function(d) { return "handle handle--" + d.type; }) - .attr("cursor", function(d) { return cursors[d.type]; }); - - group - .each(redraw) - .attr("fill", "none") - .attr("pointer-events", "all") - .on("mousedown.brush", started) - .filter(touchable) - .on("touchstart.brush", started) - .on("touchmove.brush", touchmoved) - .on("touchend.brush touchcancel.brush", touchended) - .style("touch-action", "none") - .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)"); - } - - brush.move = function(group, selection) { - if (group.selection) { - group - .on("start.brush", function() { emitter(this, arguments).beforestart().start(); }) - .on("interrupt.brush end.brush", function() { emitter(this, arguments).end(); }) - .tween("brush", function() { - var that = this, - state = that.__brush, - emit = emitter(that, arguments), - selection0 = state.selection, - selection1 = dim.input(typeof selection === "function" ? selection.apply(this, arguments) : selection, state.extent), - i = interpolateValue(selection0, selection1); - - function tween(t) { - state.selection = t === 1 && selection1 === null ? null : i(t); - redraw.call(that); - emit.brush(); - } - - return selection0 !== null && selection1 !== null ? tween : tween(1); - }); - } else { - group - .each(function() { - var that = this, - args = arguments, - state = that.__brush, - selection1 = dim.input(typeof selection === "function" ? selection.apply(that, args) : selection, state.extent), - emit = emitter(that, args).beforestart(); - - interrupt(that); - state.selection = selection1 === null ? null : selection1; - redraw.call(that); - emit.start().brush().end(); - }); - } - }; - - brush.clear = function(group) { - brush.move(group, null); - }; - - function redraw() { - var group = select(this), - selection = local$1(this).selection; - - if (selection) { - group.selectAll(".selection") - .style("display", null) - .attr("x", selection[0][0]) - .attr("y", selection[0][1]) - .attr("width", selection[1][0] - selection[0][0]) - .attr("height", selection[1][1] - selection[0][1]); - - group.selectAll(".handle") - .style("display", null) - .attr("x", function(d) { return d.type[d.type.length - 1] === "e" ? selection[1][0] - handleSize / 2 : selection[0][0] - handleSize / 2; }) - .attr("y", function(d) { return d.type[0] === "s" ? selection[1][1] - handleSize / 2 : selection[0][1] - handleSize / 2; }) - .attr("width", function(d) { return d.type === "n" || d.type === "s" ? selection[1][0] - selection[0][0] + handleSize : handleSize; }) - .attr("height", function(d) { return d.type === "e" || d.type === "w" ? selection[1][1] - selection[0][1] + handleSize : handleSize; }); - } - - else { - group.selectAll(".selection,.handle") - .style("display", "none") - .attr("x", null) - .attr("y", null) - .attr("width", null) - .attr("height", null); - } - } - - function emitter(that, args, clean) { - return (!clean && that.__brush.emitter) || new Emitter(that, args); - } - - function Emitter(that, args) { - this.that = that; - this.args = args; - this.state = that.__brush; - this.active = 0; - } - - Emitter.prototype = { - beforestart: function() { - if (++this.active === 1) this.state.emitter = this, this.starting = true; - return this; - }, - start: function() { - if (this.starting) this.starting = false, this.emit("start"); - else this.emit("brush"); - return this; - }, - brush: function() { - this.emit("brush"); - return this; - }, - end: function() { - if (--this.active === 0) delete this.state.emitter, this.emit("end"); - return this; - }, - emit: function(type) { - customEvent(new BrushEvent(brush, type, dim.output(this.state.selection)), listeners.apply, listeners, [type, this.that, this.args]); - } - }; - - function started() { - if (touchending && !event.touches) return; - if (!filter.apply(this, arguments)) return; - - var that = this, - type = event.target.__data__.type, - mode = (keys && event.metaKey ? type = "overlay" : type) === "selection" ? MODE_DRAG : (keys && event.altKey ? MODE_CENTER : MODE_HANDLE), - signX = dim === Y ? null : signsX[type], - signY = dim === X ? null : signsY[type], - state = local$1(that), - extent = state.extent, - selection = state.selection, - W = extent[0][0], w0, w1, - N = extent[0][1], n0, n1, - E = extent[1][0], e0, e1, - S = extent[1][1], s0, s1, - dx = 0, - dy = 0, - moving, - shifting = signX && signY && keys && event.shiftKey, - lockX, - lockY, - pointer = event.touches ? toucher(event.changedTouches[0].identifier) : mouse, - point0 = pointer(that), - point = point0, - emit = emitter(that, arguments, true).beforestart(); - - if (type === "overlay") { - if (selection) moving = true; - state.selection = selection = [ - [w0 = dim === Y ? W : point0[0], n0 = dim === X ? N : point0[1]], - [e0 = dim === Y ? E : w0, s0 = dim === X ? S : n0] - ]; - } else { - w0 = selection[0][0]; - n0 = selection[0][1]; - e0 = selection[1][0]; - s0 = selection[1][1]; - } - - w1 = w0; - n1 = n0; - e1 = e0; - s1 = s0; - - var group = select(that) - .attr("pointer-events", "none"); - - var overlay = group.selectAll(".overlay") - .attr("cursor", cursors[type]); - - if (event.touches) { - emit.moved = moved; - emit.ended = ended; - } else { - var view = select(event.view) - .on("mousemove.brush", moved, true) - .on("mouseup.brush", ended, true); - if (keys) view - .on("keydown.brush", keydowned, true) - .on("keyup.brush", keyupped, true); - - dragDisable(event.view); - } - - nopropagation$1(); - interrupt(that); - redraw.call(that); - emit.start(); - - function moved() { - var point1 = pointer(that); - if (shifting && !lockX && !lockY) { - if (Math.abs(point1[0] - point[0]) > Math.abs(point1[1] - point[1])) lockY = true; - else lockX = true; - } - point = point1; - moving = true; - noevent$1(); - move(); - } - - function move() { - var t; - - dx = point[0] - point0[0]; - dy = point[1] - point0[1]; - - switch (mode) { - case MODE_SPACE: - case MODE_DRAG: { - if (signX) dx = Math.max(W - w0, Math.min(E - e0, dx)), w1 = w0 + dx, e1 = e0 + dx; - if (signY) dy = Math.max(N - n0, Math.min(S - s0, dy)), n1 = n0 + dy, s1 = s0 + dy; - break; - } - case MODE_HANDLE: { - if (signX < 0) dx = Math.max(W - w0, Math.min(E - w0, dx)), w1 = w0 + dx, e1 = e0; - else if (signX > 0) dx = Math.max(W - e0, Math.min(E - e0, dx)), w1 = w0, e1 = e0 + dx; - if (signY < 0) dy = Math.max(N - n0, Math.min(S - n0, dy)), n1 = n0 + dy, s1 = s0; - else if (signY > 0) dy = Math.max(N - s0, Math.min(S - s0, dy)), n1 = n0, s1 = s0 + dy; - break; - } - case MODE_CENTER: { - if (signX) w1 = Math.max(W, Math.min(E, w0 - dx * signX)), e1 = Math.max(W, Math.min(E, e0 + dx * signX)); - if (signY) n1 = Math.max(N, Math.min(S, n0 - dy * signY)), s1 = Math.max(N, Math.min(S, s0 + dy * signY)); - break; - } - } - - if (e1 < w1) { - signX *= -1; - t = w0, w0 = e0, e0 = t; - t = w1, w1 = e1, e1 = t; - if (type in flipX) overlay.attr("cursor", cursors[type = flipX[type]]); - } - - if (s1 < n1) { - signY *= -1; - t = n0, n0 = s0, s0 = t; - t = n1, n1 = s1, s1 = t; - if (type in flipY) overlay.attr("cursor", cursors[type = flipY[type]]); - } - - if (state.selection) selection = state.selection; // May be set by brush.move! - if (lockX) w1 = selection[0][0], e1 = selection[1][0]; - if (lockY) n1 = selection[0][1], s1 = selection[1][1]; - - if (selection[0][0] !== w1 - || selection[0][1] !== n1 - || selection[1][0] !== e1 - || selection[1][1] !== s1) { - state.selection = [[w1, n1], [e1, s1]]; - redraw.call(that); - emit.brush(); - } - } - - function ended() { - nopropagation$1(); - if (event.touches) { - if (event.touches.length) return; - if (touchending) clearTimeout(touchending); - touchending = setTimeout(function() { touchending = null; }, 500); // Ghost clicks are delayed! - } else { - yesdrag(event.view, moving); - view.on("keydown.brush keyup.brush mousemove.brush mouseup.brush", null); - } - group.attr("pointer-events", "all"); - overlay.attr("cursor", cursors.overlay); - if (state.selection) selection = state.selection; // May be set by brush.move (on start)! - if (empty$1(selection)) state.selection = null, redraw.call(that); - emit.end(); - } - - function keydowned() { - switch (event.keyCode) { - case 16: { // SHIFT - shifting = signX && signY; - break; - } - case 18: { // ALT - if (mode === MODE_HANDLE) { - if (signX) e0 = e1 - dx * signX, w0 = w1 + dx * signX; - if (signY) s0 = s1 - dy * signY, n0 = n1 + dy * signY; - mode = MODE_CENTER; - move(); - } - break; - } - case 32: { // SPACE; takes priority over ALT - if (mode === MODE_HANDLE || mode === MODE_CENTER) { - if (signX < 0) e0 = e1 - dx; else if (signX > 0) w0 = w1 - dx; - if (signY < 0) s0 = s1 - dy; else if (signY > 0) n0 = n1 - dy; - mode = MODE_SPACE; - overlay.attr("cursor", cursors.selection); - move(); - } - break; - } - default: return; - } - noevent$1(); - } - - function keyupped() { - switch (event.keyCode) { - case 16: { // SHIFT - if (shifting) { - lockX = lockY = shifting = false; - move(); - } - break; - } - case 18: { // ALT - if (mode === MODE_CENTER) { - if (signX < 0) e0 = e1; else if (signX > 0) w0 = w1; - if (signY < 0) s0 = s1; else if (signY > 0) n0 = n1; - mode = MODE_HANDLE; - move(); - } - break; - } - case 32: { // SPACE - if (mode === MODE_SPACE) { - if (event.altKey) { - if (signX) e0 = e1 - dx * signX, w0 = w1 + dx * signX; - if (signY) s0 = s1 - dy * signY, n0 = n1 + dy * signY; - mode = MODE_CENTER; - } else { - if (signX < 0) e0 = e1; else if (signX > 0) w0 = w1; - if (signY < 0) s0 = s1; else if (signY > 0) n0 = n1; - mode = MODE_HANDLE; - } - overlay.attr("cursor", cursors[type]); - move(); - } - break; - } - default: return; - } - noevent$1(); - } - } - - function touchmoved() { - emitter(this, arguments).moved(); - } - - function touchended() { - emitter(this, arguments).ended(); - } - - function initialize() { - var state = this.__brush || {selection: null}; - state.extent = number2(extent.apply(this, arguments)); - state.dim = dim; - return state; - } - - brush.extent = function(_) { - return arguments.length ? (extent = typeof _ === "function" ? _ : constant$4(number2(_)), brush) : extent; - }; - - brush.filter = function(_) { - return arguments.length ? (filter = typeof _ === "function" ? _ : constant$4(!!_), brush) : filter; - }; - - brush.touchable = function(_) { - return arguments.length ? (touchable = typeof _ === "function" ? _ : constant$4(!!_), brush) : touchable; - }; - - brush.handleSize = function(_) { - return arguments.length ? (handleSize = +_, brush) : handleSize; - }; - - brush.keyModifiers = function(_) { - return arguments.length ? (keys = !!_, brush) : keys; - }; - - brush.on = function() { - var value = listeners.on.apply(listeners, arguments); - return value === listeners ? brush : value; - }; - - return brush; - } - - var cos = Math.cos; - var sin = Math.sin; - var pi$1 = Math.PI; - var halfPi$1 = pi$1 / 2; - var tau$1 = pi$1 * 2; - var max$1 = Math.max; - - function compareValue(compare) { - return function(a, b) { - return compare( - a.source.value + a.target.value, - b.source.value + b.target.value - ); - }; - } - - function chord() { - var padAngle = 0, - sortGroups = null, - sortSubgroups = null, - sortChords = null; - - function chord(matrix) { - var n = matrix.length, - groupSums = [], - groupIndex = sequence(n), - subgroupIndex = [], - chords = [], - groups = chords.groups = new Array(n), - subgroups = new Array(n * n), - k, - x, - x0, - dx, - i, - j; - - // Compute the sum. - k = 0, i = -1; while (++i < n) { - x = 0, j = -1; while (++j < n) { - x += matrix[i][j]; - } - groupSums.push(x); - subgroupIndex.push(sequence(n)); - k += x; - } - - // Sort groups… - if (sortGroups) groupIndex.sort(function(a, b) { - return sortGroups(groupSums[a], groupSums[b]); - }); - - // Sort subgroups… - if (sortSubgroups) subgroupIndex.forEach(function(d, i) { - d.sort(function(a, b) { - return sortSubgroups(matrix[i][a], matrix[i][b]); - }); - }); - - // Convert the sum to scaling factor for [0, 2pi]. - // TODO Allow start and end angle to be specified? - // TODO Allow padding to be specified as percentage? - k = max$1(0, tau$1 - padAngle * n) / k; - dx = k ? padAngle : tau$1 / n; - - // Compute the start and end angle for each group and subgroup. - // Note: Opera has a bug reordering object literal properties! - x = 0, i = -1; while (++i < n) { - x0 = x, j = -1; while (++j < n) { - var di = groupIndex[i], - dj = subgroupIndex[di][j], - v = matrix[di][dj], - a0 = x, - a1 = x += v * k; - subgroups[dj * n + di] = { - index: di, - subindex: dj, - startAngle: a0, - endAngle: a1, - value: v - }; - } - groups[di] = { - index: di, - startAngle: x0, - endAngle: x, - value: groupSums[di] - }; - x += dx; - } - - // Generate chords for each (non-empty) subgroup-subgroup link. - i = -1; while (++i < n) { - j = i - 1; while (++j < n) { - var source = subgroups[j * n + i], - target = subgroups[i * n + j]; - if (source.value || target.value) { - chords.push(source.value < target.value - ? {source: target, target: source} - : {source: source, target: target}); - } - } - } - - return sortChords ? chords.sort(sortChords) : chords; - } - - chord.padAngle = function(_) { - return arguments.length ? (padAngle = max$1(0, _), chord) : padAngle; - }; - - chord.sortGroups = function(_) { - return arguments.length ? (sortGroups = _, chord) : sortGroups; - }; - - chord.sortSubgroups = function(_) { - return arguments.length ? (sortSubgroups = _, chord) : sortSubgroups; - }; - - chord.sortChords = function(_) { - return arguments.length ? (_ == null ? sortChords = null : (sortChords = compareValue(_))._ = _, chord) : sortChords && sortChords._; - }; - - return chord; - } - - var slice$2 = Array.prototype.slice; - - function constant$5(x) { - return function() { - return x; - }; - } - - var pi$2 = Math.PI, - tau$2 = 2 * pi$2, - epsilon$1 = 1e-6, - tauEpsilon = tau$2 - epsilon$1; - - function Path() { - this._x0 = this._y0 = // start of current subpath - this._x1 = this._y1 = null; // end of current subpath - this._ = ""; - } - - function path() { - return new Path; - } - - Path.prototype = path.prototype = { - constructor: Path, - moveTo: function(x, y) { - this._ += "M" + (this._x0 = this._x1 = +x) + "," + (this._y0 = this._y1 = +y); - }, - closePath: function() { - if (this._x1 !== null) { - this._x1 = this._x0, this._y1 = this._y0; - this._ += "Z"; - } - }, - lineTo: function(x, y) { - this._ += "L" + (this._x1 = +x) + "," + (this._y1 = +y); - }, - quadraticCurveTo: function(x1, y1, x, y) { - this._ += "Q" + (+x1) + "," + (+y1) + "," + (this._x1 = +x) + "," + (this._y1 = +y); - }, - bezierCurveTo: function(x1, y1, x2, y2, x, y) { - this._ += "C" + (+x1) + "," + (+y1) + "," + (+x2) + "," + (+y2) + "," + (this._x1 = +x) + "," + (this._y1 = +y); - }, - arcTo: function(x1, y1, x2, y2, r) { - x1 = +x1, y1 = +y1, x2 = +x2, y2 = +y2, r = +r; - var x0 = this._x1, - y0 = this._y1, - x21 = x2 - x1, - y21 = y2 - y1, - x01 = x0 - x1, - y01 = y0 - y1, - l01_2 = x01 * x01 + y01 * y01; - - // Is the radius negative? Error. - if (r < 0) throw new Error("negative radius: " + r); - - // Is this path empty? Move to (x1,y1). - if (this._x1 === null) { - this._ += "M" + (this._x1 = x1) + "," + (this._y1 = y1); - } - - // Or, is (x1,y1) coincident with (x0,y0)? Do nothing. - else if (!(l01_2 > epsilon$1)); - - // Or, are (x0,y0), (x1,y1) and (x2,y2) collinear? - // Equivalently, is (x1,y1) coincident with (x2,y2)? - // Or, is the radius zero? Line to (x1,y1). - else if (!(Math.abs(y01 * x21 - y21 * x01) > epsilon$1) || !r) { - this._ += "L" + (this._x1 = x1) + "," + (this._y1 = y1); - } - - // Otherwise, draw an arc! - else { - var x20 = x2 - x0, - y20 = y2 - y0, - l21_2 = x21 * x21 + y21 * y21, - l20_2 = x20 * x20 + y20 * y20, - l21 = Math.sqrt(l21_2), - l01 = Math.sqrt(l01_2), - l = r * Math.tan((pi$2 - Math.acos((l21_2 + l01_2 - l20_2) / (2 * l21 * l01))) / 2), - t01 = l / l01, - t21 = l / l21; - - // If the start tangent is not coincident with (x0,y0), line to. - if (Math.abs(t01 - 1) > epsilon$1) { - this._ += "L" + (x1 + t01 * x01) + "," + (y1 + t01 * y01); - } - - this._ += "A" + r + "," + r + ",0,0," + (+(y01 * x20 > x01 * y20)) + "," + (this._x1 = x1 + t21 * x21) + "," + (this._y1 = y1 + t21 * y21); - } - }, - arc: function(x, y, r, a0, a1, ccw) { - x = +x, y = +y, r = +r, ccw = !!ccw; - var dx = r * Math.cos(a0), - dy = r * Math.sin(a0), - x0 = x + dx, - y0 = y + dy, - cw = 1 ^ ccw, - da = ccw ? a0 - a1 : a1 - a0; - - // Is the radius negative? Error. - if (r < 0) throw new Error("negative radius: " + r); - - // Is this path empty? Move to (x0,y0). - if (this._x1 === null) { - this._ += "M" + x0 + "," + y0; - } - - // Or, is (x0,y0) not coincident with the previous point? Line to (x0,y0). - else if (Math.abs(this._x1 - x0) > epsilon$1 || Math.abs(this._y1 - y0) > epsilon$1) { - this._ += "L" + x0 + "," + y0; - } - - // Is this arc empty? We’re done. - if (!r) return; - - // Does the angle go the wrong way? Flip the direction. - if (da < 0) da = da % tau$2 + tau$2; - - // Is this a complete circle? Draw two arcs to complete the circle. - if (da > tauEpsilon) { - this._ += "A" + r + "," + r + ",0,1," + cw + "," + (x - dx) + "," + (y - dy) + "A" + r + "," + r + ",0,1," + cw + "," + (this._x1 = x0) + "," + (this._y1 = y0); - } - - // Is this arc non-empty? Draw an arc! - else if (da > epsilon$1) { - this._ += "A" + r + "," + r + ",0," + (+(da >= pi$2)) + "," + cw + "," + (this._x1 = x + r * Math.cos(a1)) + "," + (this._y1 = y + r * Math.sin(a1)); - } - }, - rect: function(x, y, w, h) { - this._ += "M" + (this._x0 = this._x1 = +x) + "," + (this._y0 = this._y1 = +y) + "h" + (+w) + "v" + (+h) + "h" + (-w) + "Z"; - }, - toString: function() { - return this._; - } - }; - - function defaultSource(d) { - return d.source; - } - - function defaultTarget(d) { - return d.target; - } - - function defaultRadius(d) { - return d.radius; - } - - function defaultStartAngle(d) { - return d.startAngle; - } - - function defaultEndAngle(d) { - return d.endAngle; - } - - function ribbon() { - var source = defaultSource, - target = defaultTarget, - radius = defaultRadius, - startAngle = defaultStartAngle, - endAngle = defaultEndAngle, - context = null; - - function ribbon() { - var buffer, - argv = slice$2.call(arguments), - s = source.apply(this, argv), - t = target.apply(this, argv), - sr = +radius.apply(this, (argv[0] = s, argv)), - sa0 = startAngle.apply(this, argv) - halfPi$1, - sa1 = endAngle.apply(this, argv) - halfPi$1, - sx0 = sr * cos(sa0), - sy0 = sr * sin(sa0), - tr = +radius.apply(this, (argv[0] = t, argv)), - ta0 = startAngle.apply(this, argv) - halfPi$1, - ta1 = endAngle.apply(this, argv) - halfPi$1; - - if (!context) context = buffer = path(); - - context.moveTo(sx0, sy0); - context.arc(0, 0, sr, sa0, sa1); - if (sa0 !== ta0 || sa1 !== ta1) { // TODO sr !== tr? - context.quadraticCurveTo(0, 0, tr * cos(ta0), tr * sin(ta0)); - context.arc(0, 0, tr, ta0, ta1); - } - context.quadraticCurveTo(0, 0, sx0, sy0); - context.closePath(); - - if (buffer) return context = null, buffer + "" || null; - } - - ribbon.radius = function(_) { - return arguments.length ? (radius = typeof _ === "function" ? _ : constant$5(+_), ribbon) : radius; - }; - - ribbon.startAngle = function(_) { - return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$5(+_), ribbon) : startAngle; - }; - - ribbon.endAngle = function(_) { - return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$5(+_), ribbon) : endAngle; - }; - - ribbon.source = function(_) { - return arguments.length ? (source = _, ribbon) : source; - }; - - ribbon.target = function(_) { - return arguments.length ? (target = _, ribbon) : target; - }; - - ribbon.context = function(_) { - return arguments.length ? ((context = _ == null ? null : _), ribbon) : context; - }; - - return ribbon; - } - - var prefix = "$"; - - function Map() {} - - Map.prototype = map$1.prototype = { - constructor: Map, - has: function(key) { - return (prefix + key) in this; - }, - get: function(key) { - return this[prefix + key]; - }, - set: function(key, value) { - this[prefix + key] = value; - return this; - }, - remove: function(key) { - var property = prefix + key; - return property in this && delete this[property]; - }, - clear: function() { - for (var property in this) if (property[0] === prefix) delete this[property]; - }, - keys: function() { - var keys = []; - for (var property in this) if (property[0] === prefix) keys.push(property.slice(1)); - return keys; - }, - values: function() { - var values = []; - for (var property in this) if (property[0] === prefix) values.push(this[property]); - return values; - }, - entries: function() { - var entries = []; - for (var property in this) if (property[0] === prefix) entries.push({key: property.slice(1), value: this[property]}); - return entries; - }, - size: function() { - var size = 0; - for (var property in this) if (property[0] === prefix) ++size; - return size; - }, - empty: function() { - for (var property in this) if (property[0] === prefix) return false; - return true; - }, - each: function(f) { - for (var property in this) if (property[0] === prefix) f(this[property], property.slice(1), this); - } - }; - - function map$1(object, f) { - var map = new Map; - - // Copy constructor. - if (object instanceof Map) object.each(function(value, key) { map.set(key, value); }); - - // Index array by numeric index or specified key function. - else if (Array.isArray(object)) { - var i = -1, - n = object.length, - o; - - if (f == null) while (++i < n) map.set(i, object[i]); - else while (++i < n) map.set(f(o = object[i], i, object), o); - } - - // Convert object to map. - else if (object) for (var key in object) map.set(key, object[key]); - - return map; - } - - function nest() { - var keys = [], - sortKeys = [], - sortValues, - rollup, - nest; - - function apply(array, depth, createResult, setResult) { - if (depth >= keys.length) { - if (sortValues != null) array.sort(sortValues); - return rollup != null ? rollup(array) : array; - } - - var i = -1, - n = array.length, - key = keys[depth++], - keyValue, - value, - valuesByKey = map$1(), - values, - result = createResult(); - - while (++i < n) { - if (values = valuesByKey.get(keyValue = key(value = array[i]) + "")) { - values.push(value); - } else { - valuesByKey.set(keyValue, [value]); - } - } - - valuesByKey.each(function(values, key) { - setResult(result, key, apply(values, depth, createResult, setResult)); - }); - - return result; - } - - function entries(map, depth) { - if (++depth > keys.length) return map; - var array, sortKey = sortKeys[depth - 1]; - if (rollup != null && depth >= keys.length) array = map.entries(); - else array = [], map.each(function(v, k) { array.push({key: k, values: entries(v, depth)}); }); - return sortKey != null ? array.sort(function(a, b) { return sortKey(a.key, b.key); }) : array; - } - - return nest = { - object: function(array) { return apply(array, 0, createObject, setObject); }, - map: function(array) { return apply(array, 0, createMap, setMap); }, - entries: function(array) { return entries(apply(array, 0, createMap, setMap), 0); }, - key: function(d) { keys.push(d); return nest; }, - sortKeys: function(order) { sortKeys[keys.length - 1] = order; return nest; }, - sortValues: function(order) { sortValues = order; return nest; }, - rollup: function(f) { rollup = f; return nest; } - }; - } - - function createObject() { - return {}; - } - - function setObject(object, key, value) { - object[key] = value; - } - - function createMap() { - return map$1(); - } - - function setMap(map, key, value) { - map.set(key, value); - } - - function Set() {} - - var proto = map$1.prototype; - - Set.prototype = set$2.prototype = { - constructor: Set, - has: proto.has, - add: function(value) { - value += ""; - this[prefix + value] = value; - return this; - }, - remove: proto.remove, - clear: proto.clear, - values: proto.keys, - size: proto.size, - empty: proto.empty, - each: proto.each - }; - - function set$2(object, f) { - var set = new Set; - - // Copy constructor. - if (object instanceof Set) object.each(function(value) { set.add(value); }); - - // Otherwise, assume it’s an array. - else if (object) { - var i = -1, n = object.length; - if (f == null) while (++i < n) set.add(object[i]); - else while (++i < n) set.add(f(object[i], i, object)); - } - - return set; - } - - function keys(map) { - var keys = []; - for (var key in map) keys.push(key); - return keys; - } - - function values(map) { - var values = []; - for (var key in map) values.push(map[key]); - return values; - } - - function entries(map) { - var entries = []; - for (var key in map) entries.push({key: key, value: map[key]}); - return entries; - } - - var array$2 = Array.prototype; - - var slice$3 = array$2.slice; - - function ascending$2(a, b) { - return a - b; - } - - function area(ring) { - var i = 0, n = ring.length, area = ring[n - 1][1] * ring[0][0] - ring[n - 1][0] * ring[0][1]; - while (++i < n) area += ring[i - 1][1] * ring[i][0] - ring[i - 1][0] * ring[i][1]; - return area; - } - - function constant$6(x) { - return function() { - return x; - }; - } - - function contains(ring, hole) { - var i = -1, n = hole.length, c; - while (++i < n) if (c = ringContains(ring, hole[i])) return c; - return 0; - } - - function ringContains(ring, point) { - var x = point[0], y = point[1], contains = -1; - for (var i = 0, n = ring.length, j = n - 1; i < n; j = i++) { - var pi = ring[i], xi = pi[0], yi = pi[1], pj = ring[j], xj = pj[0], yj = pj[1]; - if (segmentContains(pi, pj, point)) return 0; - if (((yi > y) !== (yj > y)) && ((x < (xj - xi) * (y - yi) / (yj - yi) + xi))) contains = -contains; - } - return contains; - } - - function segmentContains(a, b, c) { - var i; return collinear(a, b, c) && within(a[i = +(a[0] === b[0])], c[i], b[i]); - } - - function collinear(a, b, c) { - return (b[0] - a[0]) * (c[1] - a[1]) === (c[0] - a[0]) * (b[1] - a[1]); - } - - function within(p, q, r) { - return p <= q && q <= r || r <= q && q <= p; - } - - function noop$1() {} - - var cases = [ - [], - [[[1.0, 1.5], [0.5, 1.0]]], - [[[1.5, 1.0], [1.0, 1.5]]], - [[[1.5, 1.0], [0.5, 1.0]]], - [[[1.0, 0.5], [1.5, 1.0]]], - [[[1.0, 1.5], [0.5, 1.0]], [[1.0, 0.5], [1.5, 1.0]]], - [[[1.0, 0.5], [1.0, 1.5]]], - [[[1.0, 0.5], [0.5, 1.0]]], - [[[0.5, 1.0], [1.0, 0.5]]], - [[[1.0, 1.5], [1.0, 0.5]]], - [[[0.5, 1.0], [1.0, 0.5]], [[1.5, 1.0], [1.0, 1.5]]], - [[[1.5, 1.0], [1.0, 0.5]]], - [[[0.5, 1.0], [1.5, 1.0]]], - [[[1.0, 1.5], [1.5, 1.0]]], - [[[0.5, 1.0], [1.0, 1.5]]], - [] - ]; - - function contours() { - var dx = 1, - dy = 1, - threshold = thresholdSturges, - smooth = smoothLinear; - - function contours(values) { - var tz = threshold(values); - - // Convert number of thresholds into uniform thresholds. - if (!Array.isArray(tz)) { - var domain = extent(values), start = domain[0], stop = domain[1]; - tz = tickStep(start, stop, tz); - tz = sequence(Math.floor(start / tz) * tz, Math.floor(stop / tz) * tz, tz); - } else { - tz = tz.slice().sort(ascending$2); - } - - return tz.map(function(value) { - return contour(values, value); - }); - } - - // Accumulate, smooth contour rings, assign holes to exterior rings. - // Based on https://github.com/mbostock/shapefile/blob/v0.6.2/shp/polygon.js - function contour(values, value) { - var polygons = [], - holes = []; - - isorings(values, value, function(ring) { - smooth(ring, values, value); - if (area(ring) > 0) polygons.push([ring]); - else holes.push(ring); - }); - - holes.forEach(function(hole) { - for (var i = 0, n = polygons.length, polygon; i < n; ++i) { - if (contains((polygon = polygons[i])[0], hole) !== -1) { - polygon.push(hole); - return; - } - } - }); - - return { - type: "MultiPolygon", - value: value, - coordinates: polygons - }; - } - - // Marching squares with isolines stitched into rings. - // Based on https://github.com/topojson/topojson-client/blob/v3.0.0/src/stitch.js - function isorings(values, value, callback) { - var fragmentByStart = new Array, - fragmentByEnd = new Array, - x, y, t0, t1, t2, t3; - - // Special case for the first row (y = -1, t2 = t3 = 0). - x = y = -1; - t1 = values[0] >= value; - cases[t1 << 1].forEach(stitch); - while (++x < dx - 1) { - t0 = t1, t1 = values[x + 1] >= value; - cases[t0 | t1 << 1].forEach(stitch); - } - cases[t1 << 0].forEach(stitch); - - // General case for the intermediate rows. - while (++y < dy - 1) { - x = -1; - t1 = values[y * dx + dx] >= value; - t2 = values[y * dx] >= value; - cases[t1 << 1 | t2 << 2].forEach(stitch); - while (++x < dx - 1) { - t0 = t1, t1 = values[y * dx + dx + x + 1] >= value; - t3 = t2, t2 = values[y * dx + x + 1] >= value; - cases[t0 | t1 << 1 | t2 << 2 | t3 << 3].forEach(stitch); - } - cases[t1 | t2 << 3].forEach(stitch); - } - - // Special case for the last row (y = dy - 1, t0 = t1 = 0). - x = -1; - t2 = values[y * dx] >= value; - cases[t2 << 2].forEach(stitch); - while (++x < dx - 1) { - t3 = t2, t2 = values[y * dx + x + 1] >= value; - cases[t2 << 2 | t3 << 3].forEach(stitch); - } - cases[t2 << 3].forEach(stitch); - - function stitch(line) { - var start = [line[0][0] + x, line[0][1] + y], - end = [line[1][0] + x, line[1][1] + y], - startIndex = index(start), - endIndex = index(end), - f, g; - if (f = fragmentByEnd[startIndex]) { - if (g = fragmentByStart[endIndex]) { - delete fragmentByEnd[f.end]; - delete fragmentByStart[g.start]; - if (f === g) { - f.ring.push(end); - callback(f.ring); - } else { - fragmentByStart[f.start] = fragmentByEnd[g.end] = {start: f.start, end: g.end, ring: f.ring.concat(g.ring)}; - } - } else { - delete fragmentByEnd[f.end]; - f.ring.push(end); - fragmentByEnd[f.end = endIndex] = f; - } - } else if (f = fragmentByStart[endIndex]) { - if (g = fragmentByEnd[startIndex]) { - delete fragmentByStart[f.start]; - delete fragmentByEnd[g.end]; - if (f === g) { - f.ring.push(end); - callback(f.ring); - } else { - fragmentByStart[g.start] = fragmentByEnd[f.end] = {start: g.start, end: f.end, ring: g.ring.concat(f.ring)}; - } - } else { - delete fragmentByStart[f.start]; - f.ring.unshift(start); - fragmentByStart[f.start = startIndex] = f; - } - } else { - fragmentByStart[startIndex] = fragmentByEnd[endIndex] = {start: startIndex, end: endIndex, ring: [start, end]}; - } - } - } - - function index(point) { - return point[0] * 2 + point[1] * (dx + 1) * 4; - } - - function smoothLinear(ring, values, value) { - ring.forEach(function(point) { - var x = point[0], - y = point[1], - xt = x | 0, - yt = y | 0, - v0, - v1 = values[yt * dx + xt]; - if (x > 0 && x < dx && xt === x) { - v0 = values[yt * dx + xt - 1]; - point[0] = x + (value - v0) / (v1 - v0) - 0.5; - } - if (y > 0 && y < dy && yt === y) { - v0 = values[(yt - 1) * dx + xt]; - point[1] = y + (value - v0) / (v1 - v0) - 0.5; - } - }); - } - - contours.contour = contour; - - contours.size = function(_) { - if (!arguments.length) return [dx, dy]; - var _0 = Math.ceil(_[0]), _1 = Math.ceil(_[1]); - if (!(_0 > 0) || !(_1 > 0)) throw new Error("invalid size"); - return dx = _0, dy = _1, contours; - }; - - contours.thresholds = function(_) { - return arguments.length ? (threshold = typeof _ === "function" ? _ : Array.isArray(_) ? constant$6(slice$3.call(_)) : constant$6(_), contours) : threshold; - }; - - contours.smooth = function(_) { - return arguments.length ? (smooth = _ ? smoothLinear : noop$1, contours) : smooth === smoothLinear; - }; - - return contours; - } - - // TODO Optimize edge cases. - // TODO Optimize index calculation. - // TODO Optimize arguments. - function blurX(source, target, r) { - var n = source.width, - m = source.height, - w = (r << 1) + 1; - for (var j = 0; j < m; ++j) { - for (var i = 0, sr = 0; i < n + r; ++i) { - if (i < n) { - sr += source.data[i + j * n]; - } - if (i >= r) { - if (i >= w) { - sr -= source.data[i - w + j * n]; - } - target.data[i - r + j * n] = sr / Math.min(i + 1, n - 1 + w - i, w); - } - } - } - } - - // TODO Optimize edge cases. - // TODO Optimize index calculation. - // TODO Optimize arguments. - function blurY(source, target, r) { - var n = source.width, - m = source.height, - w = (r << 1) + 1; - for (var i = 0; i < n; ++i) { - for (var j = 0, sr = 0; j < m + r; ++j) { - if (j < m) { - sr += source.data[i + j * n]; - } - if (j >= r) { - if (j >= w) { - sr -= source.data[i + (j - w) * n]; - } - target.data[i + (j - r) * n] = sr / Math.min(j + 1, m - 1 + w - j, w); - } - } - } - } - - function defaultX(d) { - return d[0]; - } - - function defaultY(d) { - return d[1]; - } - - function defaultWeight() { - return 1; - } - - function density() { - var x = defaultX, - y = defaultY, - weight = defaultWeight, - dx = 960, - dy = 500, - r = 20, // blur radius - k = 2, // log2(grid cell size) - o = r * 3, // grid offset, to pad for blur - n = (dx + o * 2) >> k, // grid width - m = (dy + o * 2) >> k, // grid height - threshold = constant$6(20); - - function density(data) { - var values0 = new Float32Array(n * m), - values1 = new Float32Array(n * m); - - data.forEach(function(d, i, data) { - var xi = (+x(d, i, data) + o) >> k, - yi = (+y(d, i, data) + o) >> k, - wi = +weight(d, i, data); - if (xi >= 0 && xi < n && yi >= 0 && yi < m) { - values0[xi + yi * n] += wi; - } - }); - - // TODO Optimize. - blurX({width: n, height: m, data: values0}, {width: n, height: m, data: values1}, r >> k); - blurY({width: n, height: m, data: values1}, {width: n, height: m, data: values0}, r >> k); - blurX({width: n, height: m, data: values0}, {width: n, height: m, data: values1}, r >> k); - blurY({width: n, height: m, data: values1}, {width: n, height: m, data: values0}, r >> k); - blurX({width: n, height: m, data: values0}, {width: n, height: m, data: values1}, r >> k); - blurY({width: n, height: m, data: values1}, {width: n, height: m, data: values0}, r >> k); - - var tz = threshold(values0); - - // Convert number of thresholds into uniform thresholds. - if (!Array.isArray(tz)) { - var stop = max(values0); - tz = tickStep(0, stop, tz); - tz = sequence(0, Math.floor(stop / tz) * tz, tz); - tz.shift(); - } - - return contours() - .thresholds(tz) - .size([n, m]) - (values0) - .map(transform); - } - - function transform(geometry) { - geometry.value *= Math.pow(2, -2 * k); // Density in points per square pixel. - geometry.coordinates.forEach(transformPolygon); - return geometry; - } - - function transformPolygon(coordinates) { - coordinates.forEach(transformRing); - } - - function transformRing(coordinates) { - coordinates.forEach(transformPoint); - } - - // TODO Optimize. - function transformPoint(coordinates) { - coordinates[0] = coordinates[0] * Math.pow(2, k) - o; - coordinates[1] = coordinates[1] * Math.pow(2, k) - o; - } - - function resize() { - o = r * 3; - n = (dx + o * 2) >> k; - m = (dy + o * 2) >> k; - return density; - } - - density.x = function(_) { - return arguments.length ? (x = typeof _ === "function" ? _ : constant$6(+_), density) : x; - }; - - density.y = function(_) { - return arguments.length ? (y = typeof _ === "function" ? _ : constant$6(+_), density) : y; - }; - - density.weight = function(_) { - return arguments.length ? (weight = typeof _ === "function" ? _ : constant$6(+_), density) : weight; - }; - - density.size = function(_) { - if (!arguments.length) return [dx, dy]; - var _0 = Math.ceil(_[0]), _1 = Math.ceil(_[1]); - if (!(_0 >= 0) && !(_0 >= 0)) throw new Error("invalid size"); - return dx = _0, dy = _1, resize(); - }; - - density.cellSize = function(_) { - if (!arguments.length) return 1 << k; - if (!((_ = +_) >= 1)) throw new Error("invalid cell size"); - return k = Math.floor(Math.log(_) / Math.LN2), resize(); - }; - - density.thresholds = function(_) { - return arguments.length ? (threshold = typeof _ === "function" ? _ : Array.isArray(_) ? constant$6(slice$3.call(_)) : constant$6(_), density) : threshold; - }; - - density.bandwidth = function(_) { - if (!arguments.length) return Math.sqrt(r * (r + 1)); - if (!((_ = +_) >= 0)) throw new Error("invalid bandwidth"); - return r = Math.round((Math.sqrt(4 * _ * _ + 1) - 1) / 2), resize(); - }; - - return density; - } - - var EOL = {}, - EOF = {}, - QUOTE = 34, - NEWLINE = 10, - RETURN = 13; - - function objectConverter(columns) { - return new Function("d", "return {" + columns.map(function(name, i) { - return JSON.stringify(name) + ": d[" + i + "] || \"\""; - }).join(",") + "}"); - } - - function customConverter(columns, f) { - var object = objectConverter(columns); - return function(row, i) { - return f(object(row), i, columns); - }; - } - - // Compute unique columns in order of discovery. - function inferColumns(rows) { - var columnSet = Object.create(null), - columns = []; - - rows.forEach(function(row) { - for (var column in row) { - if (!(column in columnSet)) { - columns.push(columnSet[column] = column); - } - } - }); - - return columns; - } - - function pad(value, width) { - var s = value + "", length = s.length; - return length < width ? new Array(width - length + 1).join(0) + s : s; - } - - function formatYear(year) { - return year < 0 ? "-" + pad(-year, 6) - : year > 9999 ? "+" + pad(year, 6) - : pad(year, 4); - } - - function formatDate(date) { - var hours = date.getUTCHours(), - minutes = date.getUTCMinutes(), - seconds = date.getUTCSeconds(), - milliseconds = date.getUTCMilliseconds(); - return isNaN(date) ? "Invalid Date" - : formatYear(date.getUTCFullYear()) + "-" + pad(date.getUTCMonth() + 1, 2) + "-" + pad(date.getUTCDate(), 2) - + (milliseconds ? "T" + pad(hours, 2) + ":" + pad(minutes, 2) + ":" + pad(seconds, 2) + "." + pad(milliseconds, 3) + "Z" - : seconds ? "T" + pad(hours, 2) + ":" + pad(minutes, 2) + ":" + pad(seconds, 2) + "Z" - : minutes || hours ? "T" + pad(hours, 2) + ":" + pad(minutes, 2) + "Z" - : ""); - } - - function dsvFormat(delimiter) { - var reFormat = new RegExp("[\"" + delimiter + "\n\r]"), - DELIMITER = delimiter.charCodeAt(0); - - function parse(text, f) { - var convert, columns, rows = parseRows(text, function(row, i) { - if (convert) return convert(row, i - 1); - columns = row, convert = f ? customConverter(row, f) : objectConverter(row); - }); - rows.columns = columns || []; - return rows; - } - - function parseRows(text, f) { - var rows = [], // output rows - N = text.length, - I = 0, // current character index - n = 0, // current line number - t, // current token - eof = N <= 0, // current token followed by EOF? - eol = false; // current token followed by EOL? - - // Strip the trailing newline. - if (text.charCodeAt(N - 1) === NEWLINE) --N; - if (text.charCodeAt(N - 1) === RETURN) --N; - - function token() { - if (eof) return EOF; - if (eol) return eol = false, EOL; - - // Unescape quotes. - var i, j = I, c; - if (text.charCodeAt(j) === QUOTE) { - while (I++ < N && text.charCodeAt(I) !== QUOTE || text.charCodeAt(++I) === QUOTE); - if ((i = I) >= N) eof = true; - else if ((c = text.charCodeAt(I++)) === NEWLINE) eol = true; - else if (c === RETURN) { eol = true; if (text.charCodeAt(I) === NEWLINE) ++I; } - return text.slice(j + 1, i - 1).replace(/""/g, "\""); - } - - // Find next delimiter or newline. - while (I < N) { - if ((c = text.charCodeAt(i = I++)) === NEWLINE) eol = true; - else if (c === RETURN) { eol = true; if (text.charCodeAt(I) === NEWLINE) ++I; } - else if (c !== DELIMITER) continue; - return text.slice(j, i); - } - - // Return last token before EOF. - return eof = true, text.slice(j, N); - } - - while ((t = token()) !== EOF) { - var row = []; - while (t !== EOL && t !== EOF) row.push(t), t = token(); - if (f && (row = f(row, n++)) == null) continue; - rows.push(row); - } - - return rows; - } - - function preformatBody(rows, columns) { - return rows.map(function(row) { - return columns.map(function(column) { - return formatValue(row[column]); - }).join(delimiter); - }); - } - - function format(rows, columns) { - if (columns == null) columns = inferColumns(rows); - return [columns.map(formatValue).join(delimiter)].concat(preformatBody(rows, columns)).join("\n"); - } - - function formatBody(rows, columns) { - if (columns == null) columns = inferColumns(rows); - return preformatBody(rows, columns).join("\n"); - } - - function formatRows(rows) { - return rows.map(formatRow).join("\n"); - } - - function formatRow(row) { - return row.map(formatValue).join(delimiter); - } - - function formatValue(value) { - return value == null ? "" - : value instanceof Date ? formatDate(value) - : reFormat.test(value += "") ? "\"" + value.replace(/"/g, "\"\"") + "\"" - : value; - } - - return { - parse: parse, - parseRows: parseRows, - format: format, - formatBody: formatBody, - formatRows: formatRows, - formatRow: formatRow, - formatValue: formatValue - }; - } - - var csv = dsvFormat(","); - - var csvParse = csv.parse; - var csvParseRows = csv.parseRows; - var csvFormat = csv.format; - var csvFormatBody = csv.formatBody; - var csvFormatRows = csv.formatRows; - var csvFormatRow = csv.formatRow; - var csvFormatValue = csv.formatValue; - - var tsv = dsvFormat("\t"); - - var tsvParse = tsv.parse; - var tsvParseRows = tsv.parseRows; - var tsvFormat = tsv.format; - var tsvFormatBody = tsv.formatBody; - var tsvFormatRows = tsv.formatRows; - var tsvFormatRow = tsv.formatRow; - var tsvFormatValue = tsv.formatValue; - - function autoType(object) { - for (var key in object) { - var value = object[key].trim(), number, m; - if (!value) value = null; - else if (value === "true") value = true; - else if (value === "false") value = false; - else if (value === "NaN") value = NaN; - else if (!isNaN(number = +value)) value = number; - else if (m = value.match(/^([-+]\d{2})?\d{4}(-\d{2}(-\d{2})?)?(T\d{2}:\d{2}(:\d{2}(\.\d{3})?)?(Z|[-+]\d{2}:\d{2})?)?$/)) { - if (fixtz && !!m[4] && !m[7]) value = value.replace(/-/g, "/").replace(/T/, " "); - value = new Date(value); - } - else continue; - object[key] = value; - } - return object; - } - - // https://github.com/d3/d3-dsv/issues/45 - var fixtz = new Date("2019-01-01T00:00").getHours() || new Date("2019-07-01T00:00").getHours(); - - function responseBlob(response) { - if (!response.ok) throw new Error(response.status + " " + response.statusText); - return response.blob(); - } - - function blob(input, init) { - return fetch(input, init).then(responseBlob); - } - - function responseArrayBuffer(response) { - if (!response.ok) throw new Error(response.status + " " + response.statusText); - return response.arrayBuffer(); - } - - function buffer(input, init) { - return fetch(input, init).then(responseArrayBuffer); - } - - function responseText(response) { - if (!response.ok) throw new Error(response.status + " " + response.statusText); - return response.text(); - } - - function text(input, init) { - return fetch(input, init).then(responseText); - } - - function dsvParse(parse) { - return function(input, init, row) { - if (arguments.length === 2 && typeof init === "function") row = init, init = undefined; - return text(input, init).then(function(response) { - return parse(response, row); - }); - }; - } - - function dsv(delimiter, input, init, row) { - if (arguments.length === 3 && typeof init === "function") row = init, init = undefined; - var format = dsvFormat(delimiter); - return text(input, init).then(function(response) { - return format.parse(response, row); - }); - } - - var csv$1 = dsvParse(csvParse); - var tsv$1 = dsvParse(tsvParse); - - function image(input, init) { - return new Promise(function(resolve, reject) { - var image = new Image; - for (var key in init) image[key] = init[key]; - image.onerror = reject; - image.onload = function() { resolve(image); }; - image.src = input; - }); - } - - function responseJson(response) { - if (!response.ok) throw new Error(response.status + " " + response.statusText); - if (response.status === 204 || response.status === 205) return; - return response.json(); - } - - function json(input, init) { - return fetch(input, init).then(responseJson); - } - - function parser(type) { - return function(input, init) { - return text(input, init).then(function(text) { - return (new DOMParser).parseFromString(text, type); - }); - }; - } - - var xml = parser("application/xml"); - - var html = parser("text/html"); - - var svg = parser("image/svg+xml"); - - function center$1(x, y) { - var nodes; - - if (x == null) x = 0; - if (y == null) y = 0; - - function force() { - var i, - n = nodes.length, - node, - sx = 0, - sy = 0; - - for (i = 0; i < n; ++i) { - node = nodes[i], sx += node.x, sy += node.y; - } - - for (sx = sx / n - x, sy = sy / n - y, i = 0; i < n; ++i) { - node = nodes[i], node.x -= sx, node.y -= sy; - } - } - - force.initialize = function(_) { - nodes = _; - }; - - force.x = function(_) { - return arguments.length ? (x = +_, force) : x; - }; - - force.y = function(_) { - return arguments.length ? (y = +_, force) : y; - }; - - return force; - } - - function constant$7(x) { - return function() { - return x; - }; - } - - function jiggle() { - return (Math.random() - 0.5) * 1e-6; - } - - function tree_add(d) { - var x = +this._x.call(null, d), - y = +this._y.call(null, d); - return add(this.cover(x, y), x, y, d); - } - - function add(tree, x, y, d) { - if (isNaN(x) || isNaN(y)) return tree; // ignore invalid points - - var parent, - node = tree._root, - leaf = {data: d}, - x0 = tree._x0, - y0 = tree._y0, - x1 = tree._x1, - y1 = tree._y1, - xm, - ym, - xp, - yp, - right, - bottom, - i, - j; - - // If the tree is empty, initialize the root as a leaf. - if (!node) return tree._root = leaf, tree; - - // Find the existing leaf for the new point, or add it. - while (node.length) { - if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm; - if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym; - if (parent = node, !(node = node[i = bottom << 1 | right])) return parent[i] = leaf, tree; - } - - // Is the new point is exactly coincident with the existing point? - xp = +tree._x.call(null, node.data); - yp = +tree._y.call(null, node.data); - if (x === xp && y === yp) return leaf.next = node, parent ? parent[i] = leaf : tree._root = leaf, tree; - - // Otherwise, split the leaf node until the old and new point are separated. - do { - parent = parent ? parent[i] = new Array(4) : tree._root = new Array(4); - if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm; - if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym; - } while ((i = bottom << 1 | right) === (j = (yp >= ym) << 1 | (xp >= xm))); - return parent[j] = node, parent[i] = leaf, tree; - } - - function addAll(data) { - var d, i, n = data.length, - x, - y, - xz = new Array(n), - yz = new Array(n), - x0 = Infinity, - y0 = Infinity, - x1 = -Infinity, - y1 = -Infinity; - - // Compute the points and their extent. - for (i = 0; i < n; ++i) { - if (isNaN(x = +this._x.call(null, d = data[i])) || isNaN(y = +this._y.call(null, d))) continue; - xz[i] = x; - yz[i] = y; - if (x < x0) x0 = x; - if (x > x1) x1 = x; - if (y < y0) y0 = y; - if (y > y1) y1 = y; - } - - // If there were no (valid) points, abort. - if (x0 > x1 || y0 > y1) return this; - - // Expand the tree to cover the new points. - this.cover(x0, y0).cover(x1, y1); - - // Add the new points. - for (i = 0; i < n; ++i) { - add(this, xz[i], yz[i], data[i]); - } - - return this; - } - - function tree_cover(x, y) { - if (isNaN(x = +x) || isNaN(y = +y)) return this; // ignore invalid points - - var x0 = this._x0, - y0 = this._y0, - x1 = this._x1, - y1 = this._y1; - - // If the quadtree has no extent, initialize them. - // Integer extent are necessary so that if we later double the extent, - // the existing quadrant boundaries don’t change due to floating point error! - if (isNaN(x0)) { - x1 = (x0 = Math.floor(x)) + 1; - y1 = (y0 = Math.floor(y)) + 1; - } - - // Otherwise, double repeatedly to cover. - else { - var z = x1 - x0, - node = this._root, - parent, - i; - - while (x0 > x || x >= x1 || y0 > y || y >= y1) { - i = (y < y0) << 1 | (x < x0); - parent = new Array(4), parent[i] = node, node = parent, z *= 2; - switch (i) { - case 0: x1 = x0 + z, y1 = y0 + z; break; - case 1: x0 = x1 - z, y1 = y0 + z; break; - case 2: x1 = x0 + z, y0 = y1 - z; break; - case 3: x0 = x1 - z, y0 = y1 - z; break; - } - } - - if (this._root && this._root.length) this._root = node; - } - - this._x0 = x0; - this._y0 = y0; - this._x1 = x1; - this._y1 = y1; - return this; - } - - function tree_data() { - var data = []; - this.visit(function(node) { - if (!node.length) do data.push(node.data); while (node = node.next) - }); - return data; - } - - function tree_extent(_) { - return arguments.length - ? this.cover(+_[0][0], +_[0][1]).cover(+_[1][0], +_[1][1]) - : isNaN(this._x0) ? undefined : [[this._x0, this._y0], [this._x1, this._y1]]; - } - - function Quad(node, x0, y0, x1, y1) { - this.node = node; - this.x0 = x0; - this.y0 = y0; - this.x1 = x1; - this.y1 = y1; - } - - function tree_find(x, y, radius) { - var data, - x0 = this._x0, - y0 = this._y0, - x1, - y1, - x2, - y2, - x3 = this._x1, - y3 = this._y1, - quads = [], - node = this._root, - q, - i; - - if (node) quads.push(new Quad(node, x0, y0, x3, y3)); - if (radius == null) radius = Infinity; - else { - x0 = x - radius, y0 = y - radius; - x3 = x + radius, y3 = y + radius; - radius *= radius; - } - - while (q = quads.pop()) { - - // Stop searching if this quadrant can’t contain a closer node. - if (!(node = q.node) - || (x1 = q.x0) > x3 - || (y1 = q.y0) > y3 - || (x2 = q.x1) < x0 - || (y2 = q.y1) < y0) continue; - - // Bisect the current quadrant. - if (node.length) { - var xm = (x1 + x2) / 2, - ym = (y1 + y2) / 2; - - quads.push( - new Quad(node[3], xm, ym, x2, y2), - new Quad(node[2], x1, ym, xm, y2), - new Quad(node[1], xm, y1, x2, ym), - new Quad(node[0], x1, y1, xm, ym) - ); - - // Visit the closest quadrant first. - if (i = (y >= ym) << 1 | (x >= xm)) { - q = quads[quads.length - 1]; - quads[quads.length - 1] = quads[quads.length - 1 - i]; - quads[quads.length - 1 - i] = q; - } - } - - // Visit this point. (Visiting coincident points isn’t necessary!) - else { - var dx = x - +this._x.call(null, node.data), - dy = y - +this._y.call(null, node.data), - d2 = dx * dx + dy * dy; - if (d2 < radius) { - var d = Math.sqrt(radius = d2); - x0 = x - d, y0 = y - d; - x3 = x + d, y3 = y + d; - data = node.data; - } - } - } - - return data; - } - - function tree_remove(d) { - if (isNaN(x = +this._x.call(null, d)) || isNaN(y = +this._y.call(null, d))) return this; // ignore invalid points - - var parent, - node = this._root, - retainer, - previous, - next, - x0 = this._x0, - y0 = this._y0, - x1 = this._x1, - y1 = this._y1, - x, - y, - xm, - ym, - right, - bottom, - i, - j; - - // If the tree is empty, initialize the root as a leaf. - if (!node) return this; - - // Find the leaf node for the point. - // While descending, also retain the deepest parent with a non-removed sibling. - if (node.length) while (true) { - if (right = x >= (xm = (x0 + x1) / 2)) x0 = xm; else x1 = xm; - if (bottom = y >= (ym = (y0 + y1) / 2)) y0 = ym; else y1 = ym; - if (!(parent = node, node = node[i = bottom << 1 | right])) return this; - if (!node.length) break; - if (parent[(i + 1) & 3] || parent[(i + 2) & 3] || parent[(i + 3) & 3]) retainer = parent, j = i; - } - - // Find the point to remove. - while (node.data !== d) if (!(previous = node, node = node.next)) return this; - if (next = node.next) delete node.next; - - // If there are multiple coincident points, remove just the point. - if (previous) return (next ? previous.next = next : delete previous.next), this; - - // If this is the root point, remove it. - if (!parent) return this._root = next, this; - - // Remove this leaf. - next ? parent[i] = next : delete parent[i]; - - // If the parent now contains exactly one leaf, collapse superfluous parents. - if ((node = parent[0] || parent[1] || parent[2] || parent[3]) - && node === (parent[3] || parent[2] || parent[1] || parent[0]) - && !node.length) { - if (retainer) retainer[j] = node; - else this._root = node; - } - - return this; - } - - function removeAll(data) { - for (var i = 0, n = data.length; i < n; ++i) this.remove(data[i]); - return this; - } - - function tree_root() { - return this._root; - } - - function tree_size() { - var size = 0; - this.visit(function(node) { - if (!node.length) do ++size; while (node = node.next) - }); - return size; - } - - function tree_visit(callback) { - var quads = [], q, node = this._root, child, x0, y0, x1, y1; - if (node) quads.push(new Quad(node, this._x0, this._y0, this._x1, this._y1)); - while (q = quads.pop()) { - if (!callback(node = q.node, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1) && node.length) { - var xm = (x0 + x1) / 2, ym = (y0 + y1) / 2; - if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1)); - if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1)); - if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym)); - if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym)); - } - } - return this; - } - - function tree_visitAfter(callback) { - var quads = [], next = [], q; - if (this._root) quads.push(new Quad(this._root, this._x0, this._y0, this._x1, this._y1)); - while (q = quads.pop()) { - var node = q.node; - if (node.length) { - var child, x0 = q.x0, y0 = q.y0, x1 = q.x1, y1 = q.y1, xm = (x0 + x1) / 2, ym = (y0 + y1) / 2; - if (child = node[0]) quads.push(new Quad(child, x0, y0, xm, ym)); - if (child = node[1]) quads.push(new Quad(child, xm, y0, x1, ym)); - if (child = node[2]) quads.push(new Quad(child, x0, ym, xm, y1)); - if (child = node[3]) quads.push(new Quad(child, xm, ym, x1, y1)); - } - next.push(q); - } - while (q = next.pop()) { - callback(q.node, q.x0, q.y0, q.x1, q.y1); - } - return this; - } - - function defaultX$1(d) { - return d[0]; - } - - function tree_x(_) { - return arguments.length ? (this._x = _, this) : this._x; - } - - function defaultY$1(d) { - return d[1]; - } - - function tree_y(_) { - return arguments.length ? (this._y = _, this) : this._y; - } - - function quadtree(nodes, x, y) { - var tree = new Quadtree(x == null ? defaultX$1 : x, y == null ? defaultY$1 : y, NaN, NaN, NaN, NaN); - return nodes == null ? tree : tree.addAll(nodes); - } - - function Quadtree(x, y, x0, y0, x1, y1) { - this._x = x; - this._y = y; - this._x0 = x0; - this._y0 = y0; - this._x1 = x1; - this._y1 = y1; - this._root = undefined; - } - - function leaf_copy(leaf) { - var copy = {data: leaf.data}, next = copy; - while (leaf = leaf.next) next = next.next = {data: leaf.data}; - return copy; - } - - var treeProto = quadtree.prototype = Quadtree.prototype; - - treeProto.copy = function() { - var copy = new Quadtree(this._x, this._y, this._x0, this._y0, this._x1, this._y1), - node = this._root, - nodes, - child; - - if (!node) return copy; - - if (!node.length) return copy._root = leaf_copy(node), copy; - - nodes = [{source: node, target: copy._root = new Array(4)}]; - while (node = nodes.pop()) { - for (var i = 0; i < 4; ++i) { - if (child = node.source[i]) { - if (child.length) nodes.push({source: child, target: node.target[i] = new Array(4)}); - else node.target[i] = leaf_copy(child); - } - } - } - - return copy; - }; - - treeProto.add = tree_add; - treeProto.addAll = addAll; - treeProto.cover = tree_cover; - treeProto.data = tree_data; - treeProto.extent = tree_extent; - treeProto.find = tree_find; - treeProto.remove = tree_remove; - treeProto.removeAll = removeAll; - treeProto.root = tree_root; - treeProto.size = tree_size; - treeProto.visit = tree_visit; - treeProto.visitAfter = tree_visitAfter; - treeProto.x = tree_x; - treeProto.y = tree_y; - - function x(d) { - return d.x + d.vx; - } - - function y(d) { - return d.y + d.vy; - } - - function collide(radius) { - var nodes, - radii, - strength = 1, - iterations = 1; - - if (typeof radius !== "function") radius = constant$7(radius == null ? 1 : +radius); - - function force() { - var i, n = nodes.length, - tree, - node, - xi, - yi, - ri, - ri2; - - for (var k = 0; k < iterations; ++k) { - tree = quadtree(nodes, x, y).visitAfter(prepare); - for (i = 0; i < n; ++i) { - node = nodes[i]; - ri = radii[node.index], ri2 = ri * ri; - xi = node.x + node.vx; - yi = node.y + node.vy; - tree.visit(apply); - } - } - - function apply(quad, x0, y0, x1, y1) { - var data = quad.data, rj = quad.r, r = ri + rj; - if (data) { - if (data.index > node.index) { - var x = xi - data.x - data.vx, - y = yi - data.y - data.vy, - l = x * x + y * y; - if (l < r * r) { - if (x === 0) x = jiggle(), l += x * x; - if (y === 0) y = jiggle(), l += y * y; - l = (r - (l = Math.sqrt(l))) / l * strength; - node.vx += (x *= l) * (r = (rj *= rj) / (ri2 + rj)); - node.vy += (y *= l) * r; - data.vx -= x * (r = 1 - r); - data.vy -= y * r; - } - } - return; - } - return x0 > xi + r || x1 < xi - r || y0 > yi + r || y1 < yi - r; - } - } - - function prepare(quad) { - if (quad.data) return quad.r = radii[quad.data.index]; - for (var i = quad.r = 0; i < 4; ++i) { - if (quad[i] && quad[i].r > quad.r) { - quad.r = quad[i].r; - } - } - } - - function initialize() { - if (!nodes) return; - var i, n = nodes.length, node; - radii = new Array(n); - for (i = 0; i < n; ++i) node = nodes[i], radii[node.index] = +radius(node, i, nodes); - } - - force.initialize = function(_) { - nodes = _; - initialize(); - }; - - force.iterations = function(_) { - return arguments.length ? (iterations = +_, force) : iterations; - }; - - force.strength = function(_) { - return arguments.length ? (strength = +_, force) : strength; - }; - - force.radius = function(_) { - return arguments.length ? (radius = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : radius; - }; - - return force; - } - - function index(d) { - return d.index; - } - - function find(nodeById, nodeId) { - var node = nodeById.get(nodeId); - if (!node) throw new Error("missing: " + nodeId); - return node; - } - - function link(links) { - var id = index, - strength = defaultStrength, - strengths, - distance = constant$7(30), - distances, - nodes, - count, - bias, - iterations = 1; - - if (links == null) links = []; - - function defaultStrength(link) { - return 1 / Math.min(count[link.source.index], count[link.target.index]); - } - - function force(alpha) { - for (var k = 0, n = links.length; k < iterations; ++k) { - for (var i = 0, link, source, target, x, y, l, b; i < n; ++i) { - link = links[i], source = link.source, target = link.target; - x = target.x + target.vx - source.x - source.vx || jiggle(); - y = target.y + target.vy - source.y - source.vy || jiggle(); - l = Math.sqrt(x * x + y * y); - l = (l - distances[i]) / l * alpha * strengths[i]; - x *= l, y *= l; - target.vx -= x * (b = bias[i]); - target.vy -= y * b; - source.vx += x * (b = 1 - b); - source.vy += y * b; - } - } - } - - function initialize() { - if (!nodes) return; - - var i, - n = nodes.length, - m = links.length, - nodeById = map$1(nodes, id), - link; - - for (i = 0, count = new Array(n); i < m; ++i) { - link = links[i], link.index = i; - if (typeof link.source !== "object") link.source = find(nodeById, link.source); - if (typeof link.target !== "object") link.target = find(nodeById, link.target); - count[link.source.index] = (count[link.source.index] || 0) + 1; - count[link.target.index] = (count[link.target.index] || 0) + 1; - } - - for (i = 0, bias = new Array(m); i < m; ++i) { - link = links[i], bias[i] = count[link.source.index] / (count[link.source.index] + count[link.target.index]); - } - - strengths = new Array(m), initializeStrength(); - distances = new Array(m), initializeDistance(); - } - - function initializeStrength() { - if (!nodes) return; - - for (var i = 0, n = links.length; i < n; ++i) { - strengths[i] = +strength(links[i], i, links); - } - } - - function initializeDistance() { - if (!nodes) return; - - for (var i = 0, n = links.length; i < n; ++i) { - distances[i] = +distance(links[i], i, links); - } - } - - force.initialize = function(_) { - nodes = _; - initialize(); - }; - - force.links = function(_) { - return arguments.length ? (links = _, initialize(), force) : links; - }; - - force.id = function(_) { - return arguments.length ? (id = _, force) : id; - }; - - force.iterations = function(_) { - return arguments.length ? (iterations = +_, force) : iterations; - }; - - force.strength = function(_) { - return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initializeStrength(), force) : strength; - }; - - force.distance = function(_) { - return arguments.length ? (distance = typeof _ === "function" ? _ : constant$7(+_), initializeDistance(), force) : distance; - }; - - return force; - } - - function x$1(d) { - return d.x; - } - - function y$1(d) { - return d.y; - } - - var initialRadius = 10, - initialAngle = Math.PI * (3 - Math.sqrt(5)); - - function simulation(nodes) { - var simulation, - alpha = 1, - alphaMin = 0.001, - alphaDecay = 1 - Math.pow(alphaMin, 1 / 300), - alphaTarget = 0, - velocityDecay = 0.6, - forces = map$1(), - stepper = timer(step), - event = dispatch("tick", "end"); - - if (nodes == null) nodes = []; - - function step() { - tick(); - event.call("tick", simulation); - if (alpha < alphaMin) { - stepper.stop(); - event.call("end", simulation); - } - } - - function tick(iterations) { - var i, n = nodes.length, node; - - if (iterations === undefined) iterations = 1; - - for (var k = 0; k < iterations; ++k) { - alpha += (alphaTarget - alpha) * alphaDecay; - - forces.each(function (force) { - force(alpha); - }); - - for (i = 0; i < n; ++i) { - node = nodes[i]; - if (node.fx == null) node.x += node.vx *= velocityDecay; - else node.x = node.fx, node.vx = 0; - if (node.fy == null) node.y += node.vy *= velocityDecay; - else node.y = node.fy, node.vy = 0; - } - } - - return simulation; - } - - function initializeNodes() { - for (var i = 0, n = nodes.length, node; i < n; ++i) { - node = nodes[i], node.index = i; - if (node.fx != null) node.x = node.fx; - if (node.fy != null) node.y = node.fy; - if (isNaN(node.x) || isNaN(node.y)) { - var radius = initialRadius * Math.sqrt(i), angle = i * initialAngle; - node.x = radius * Math.cos(angle); - node.y = radius * Math.sin(angle); - } - if (isNaN(node.vx) || isNaN(node.vy)) { - node.vx = node.vy = 0; - } - } - } - - function initializeForce(force) { - if (force.initialize) force.initialize(nodes); - return force; - } - - initializeNodes(); - - return simulation = { - tick: tick, - - restart: function() { - return stepper.restart(step), simulation; - }, - - stop: function() { - return stepper.stop(), simulation; - }, - - nodes: function(_) { - return arguments.length ? (nodes = _, initializeNodes(), forces.each(initializeForce), simulation) : nodes; - }, - - alpha: function(_) { - return arguments.length ? (alpha = +_, simulation) : alpha; - }, - - alphaMin: function(_) { - return arguments.length ? (alphaMin = +_, simulation) : alphaMin; - }, - - alphaDecay: function(_) { - return arguments.length ? (alphaDecay = +_, simulation) : +alphaDecay; - }, - - alphaTarget: function(_) { - return arguments.length ? (alphaTarget = +_, simulation) : alphaTarget; - }, - - velocityDecay: function(_) { - return arguments.length ? (velocityDecay = 1 - _, simulation) : 1 - velocityDecay; - }, - - force: function(name, _) { - return arguments.length > 1 ? ((_ == null ? forces.remove(name) : forces.set(name, initializeForce(_))), simulation) : forces.get(name); - }, - - find: function(x, y, radius) { - var i = 0, - n = nodes.length, - dx, - dy, - d2, - node, - closest; - - if (radius == null) radius = Infinity; - else radius *= radius; - - for (i = 0; i < n; ++i) { - node = nodes[i]; - dx = x - node.x; - dy = y - node.y; - d2 = dx * dx + dy * dy; - if (d2 < radius) closest = node, radius = d2; - } - - return closest; - }, - - on: function(name, _) { - return arguments.length > 1 ? (event.on(name, _), simulation) : event.on(name); - } - }; - } - - function manyBody() { - var nodes, - node, - alpha, - strength = constant$7(-30), - strengths, - distanceMin2 = 1, - distanceMax2 = Infinity, - theta2 = 0.81; - - function force(_) { - var i, n = nodes.length, tree = quadtree(nodes, x$1, y$1).visitAfter(accumulate); - for (alpha = _, i = 0; i < n; ++i) node = nodes[i], tree.visit(apply); - } - - function initialize() { - if (!nodes) return; - var i, n = nodes.length, node; - strengths = new Array(n); - for (i = 0; i < n; ++i) node = nodes[i], strengths[node.index] = +strength(node, i, nodes); - } - - function accumulate(quad) { - var strength = 0, q, c, weight = 0, x, y, i; - - // For internal nodes, accumulate forces from child quadrants. - if (quad.length) { - for (x = y = i = 0; i < 4; ++i) { - if ((q = quad[i]) && (c = Math.abs(q.value))) { - strength += q.value, weight += c, x += c * q.x, y += c * q.y; - } - } - quad.x = x / weight; - quad.y = y / weight; - } - - // For leaf nodes, accumulate forces from coincident quadrants. - else { - q = quad; - q.x = q.data.x; - q.y = q.data.y; - do strength += strengths[q.data.index]; - while (q = q.next); - } - - quad.value = strength; - } - - function apply(quad, x1, _, x2) { - if (!quad.value) return true; - - var x = quad.x - node.x, - y = quad.y - node.y, - w = x2 - x1, - l = x * x + y * y; - - // Apply the Barnes-Hut approximation if possible. - // Limit forces for very close nodes; randomize direction if coincident. - if (w * w / theta2 < l) { - if (l < distanceMax2) { - if (x === 0) x = jiggle(), l += x * x; - if (y === 0) y = jiggle(), l += y * y; - if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l); - node.vx += x * quad.value * alpha / l; - node.vy += y * quad.value * alpha / l; - } - return true; - } - - // Otherwise, process points directly. - else if (quad.length || l >= distanceMax2) return; - - // Limit forces for very close nodes; randomize direction if coincident. - if (quad.data !== node || quad.next) { - if (x === 0) x = jiggle(), l += x * x; - if (y === 0) y = jiggle(), l += y * y; - if (l < distanceMin2) l = Math.sqrt(distanceMin2 * l); - } - - do if (quad.data !== node) { - w = strengths[quad.data.index] * alpha / l; - node.vx += x * w; - node.vy += y * w; - } while (quad = quad.next); - } - - force.initialize = function(_) { - nodes = _; - initialize(); - }; - - force.strength = function(_) { - return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : strength; - }; - - force.distanceMin = function(_) { - return arguments.length ? (distanceMin2 = _ * _, force) : Math.sqrt(distanceMin2); - }; - - force.distanceMax = function(_) { - return arguments.length ? (distanceMax2 = _ * _, force) : Math.sqrt(distanceMax2); - }; - - force.theta = function(_) { - return arguments.length ? (theta2 = _ * _, force) : Math.sqrt(theta2); - }; - - return force; - } - - function radial(radius, x, y) { - var nodes, - strength = constant$7(0.1), - strengths, - radiuses; - - if (typeof radius !== "function") radius = constant$7(+radius); - if (x == null) x = 0; - if (y == null) y = 0; - - function force(alpha) { - for (var i = 0, n = nodes.length; i < n; ++i) { - var node = nodes[i], - dx = node.x - x || 1e-6, - dy = node.y - y || 1e-6, - r = Math.sqrt(dx * dx + dy * dy), - k = (radiuses[i] - r) * strengths[i] * alpha / r; - node.vx += dx * k; - node.vy += dy * k; - } - } - - function initialize() { - if (!nodes) return; - var i, n = nodes.length; - strengths = new Array(n); - radiuses = new Array(n); - for (i = 0; i < n; ++i) { - radiuses[i] = +radius(nodes[i], i, nodes); - strengths[i] = isNaN(radiuses[i]) ? 0 : +strength(nodes[i], i, nodes); - } - } - - force.initialize = function(_) { - nodes = _, initialize(); - }; - - force.strength = function(_) { - return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : strength; - }; - - force.radius = function(_) { - return arguments.length ? (radius = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : radius; - }; - - force.x = function(_) { - return arguments.length ? (x = +_, force) : x; - }; - - force.y = function(_) { - return arguments.length ? (y = +_, force) : y; - }; - - return force; - } - - function x$2(x) { - var strength = constant$7(0.1), - nodes, - strengths, - xz; - - if (typeof x !== "function") x = constant$7(x == null ? 0 : +x); - - function force(alpha) { - for (var i = 0, n = nodes.length, node; i < n; ++i) { - node = nodes[i], node.vx += (xz[i] - node.x) * strengths[i] * alpha; - } - } - - function initialize() { - if (!nodes) return; - var i, n = nodes.length; - strengths = new Array(n); - xz = new Array(n); - for (i = 0; i < n; ++i) { - strengths[i] = isNaN(xz[i] = +x(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes); - } - } - - force.initialize = function(_) { - nodes = _; - initialize(); - }; - - force.strength = function(_) { - return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : strength; - }; - - force.x = function(_) { - return arguments.length ? (x = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : x; - }; - - return force; - } - - function y$2(y) { - var strength = constant$7(0.1), - nodes, - strengths, - yz; - - if (typeof y !== "function") y = constant$7(y == null ? 0 : +y); - - function force(alpha) { - for (var i = 0, n = nodes.length, node; i < n; ++i) { - node = nodes[i], node.vy += (yz[i] - node.y) * strengths[i] * alpha; - } - } - - function initialize() { - if (!nodes) return; - var i, n = nodes.length; - strengths = new Array(n); - yz = new Array(n); - for (i = 0; i < n; ++i) { - strengths[i] = isNaN(yz[i] = +y(nodes[i], i, nodes)) ? 0 : +strength(nodes[i], i, nodes); - } - } - - force.initialize = function(_) { - nodes = _; - initialize(); - }; - - force.strength = function(_) { - return arguments.length ? (strength = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : strength; - }; - - force.y = function(_) { - return arguments.length ? (y = typeof _ === "function" ? _ : constant$7(+_), initialize(), force) : y; - }; - - return force; - } - - // Computes the decimal coefficient and exponent of the specified number x with - // significant digits p, where x is positive and p is in [1, 21] or undefined. - // For example, formatDecimal(1.23) returns ["123", 0]. - function formatDecimal(x, p) { - if ((i = (x = p ? x.toExponential(p - 1) : x.toExponential()).indexOf("e")) < 0) return null; // NaN, ±Infinity - var i, coefficient = x.slice(0, i); - - // The string returned by toExponential either has the form \d\.\d+e[-+]\d+ - // (e.g., 1.2e+3) or the form \de[-+]\d+ (e.g., 1e+3). - return [ - coefficient.length > 1 ? coefficient[0] + coefficient.slice(2) : coefficient, - +x.slice(i + 1) - ]; - } - - function exponent$1(x) { - return x = formatDecimal(Math.abs(x)), x ? x[1] : NaN; - } - - function formatGroup(grouping, thousands) { - return function(value, width) { - var i = value.length, - t = [], - j = 0, - g = grouping[0], - length = 0; - - while (i > 0 && g > 0) { - if (length + g + 1 > width) g = Math.max(1, width - length); - t.push(value.substring(i -= g, i + g)); - if ((length += g + 1) > width) break; - g = grouping[j = (j + 1) % grouping.length]; - } - - return t.reverse().join(thousands); - }; - } - - function formatNumerals(numerals) { - return function(value) { - return value.replace(/[0-9]/g, function(i) { - return numerals[+i]; - }); - }; - } - - // [[fill]align][sign][symbol][0][width][,][.precision][~][type] - var re = /^(?:(.)?([<>=^]))?([+\-( ])?([$#])?(0)?(\d+)?(,)?(\.\d+)?(~)?([a-z%])?$/i; - - function formatSpecifier(specifier) { - if (!(match = re.exec(specifier))) throw new Error("invalid format: " + specifier); - var match; - return new FormatSpecifier({ - fill: match[1], - align: match[2], - sign: match[3], - symbol: match[4], - zero: match[5], - width: match[6], - comma: match[7], - precision: match[8] && match[8].slice(1), - trim: match[9], - type: match[10] - }); - } - - formatSpecifier.prototype = FormatSpecifier.prototype; // instanceof - - function FormatSpecifier(specifier) { - this.fill = specifier.fill === undefined ? " " : specifier.fill + ""; - this.align = specifier.align === undefined ? ">" : specifier.align + ""; - this.sign = specifier.sign === undefined ? "-" : specifier.sign + ""; - this.symbol = specifier.symbol === undefined ? "" : specifier.symbol + ""; - this.zero = !!specifier.zero; - this.width = specifier.width === undefined ? undefined : +specifier.width; - this.comma = !!specifier.comma; - this.precision = specifier.precision === undefined ? undefined : +specifier.precision; - this.trim = !!specifier.trim; - this.type = specifier.type === undefined ? "" : specifier.type + ""; - } - - FormatSpecifier.prototype.toString = function() { - return this.fill - + this.align - + this.sign - + this.symbol - + (this.zero ? "0" : "") - + (this.width === undefined ? "" : Math.max(1, this.width | 0)) - + (this.comma ? "," : "") - + (this.precision === undefined ? "" : "." + Math.max(0, this.precision | 0)) - + (this.trim ? "~" : "") - + this.type; - }; - - // Trims insignificant zeros, e.g., replaces 1.2000k with 1.2k. - function formatTrim(s) { - out: for (var n = s.length, i = 1, i0 = -1, i1; i < n; ++i) { - switch (s[i]) { - case ".": i0 = i1 = i; break; - case "0": if (i0 === 0) i0 = i; i1 = i; break; - default: if (!+s[i]) break out; if (i0 > 0) i0 = 0; break; - } - } - return i0 > 0 ? s.slice(0, i0) + s.slice(i1 + 1) : s; - } - - var prefixExponent; - - function formatPrefixAuto(x, p) { - var d = formatDecimal(x, p); - if (!d) return x + ""; - var coefficient = d[0], - exponent = d[1], - i = exponent - (prefixExponent = Math.max(-8, Math.min(8, Math.floor(exponent / 3))) * 3) + 1, - n = coefficient.length; - return i === n ? coefficient - : i > n ? coefficient + new Array(i - n + 1).join("0") - : i > 0 ? coefficient.slice(0, i) + "." + coefficient.slice(i) - : "0." + new Array(1 - i).join("0") + formatDecimal(x, Math.max(0, p + i - 1))[0]; // less than 1y! - } - - function formatRounded(x, p) { - var d = formatDecimal(x, p); - if (!d) return x + ""; - var coefficient = d[0], - exponent = d[1]; - return exponent < 0 ? "0." + new Array(-exponent).join("0") + coefficient - : coefficient.length > exponent + 1 ? coefficient.slice(0, exponent + 1) + "." + coefficient.slice(exponent + 1) - : coefficient + new Array(exponent - coefficient.length + 2).join("0"); - } - - var formatTypes = { - "%": function(x, p) { return (x * 100).toFixed(p); }, - "b": function(x) { return Math.round(x).toString(2); }, - "c": function(x) { return x + ""; }, - "d": function(x) { return Math.round(x).toString(10); }, - "e": function(x, p) { return x.toExponential(p); }, - "f": function(x, p) { return x.toFixed(p); }, - "g": function(x, p) { return x.toPrecision(p); }, - "o": function(x) { return Math.round(x).toString(8); }, - "p": function(x, p) { return formatRounded(x * 100, p); }, - "r": formatRounded, - "s": formatPrefixAuto, - "X": function(x) { return Math.round(x).toString(16).toUpperCase(); }, - "x": function(x) { return Math.round(x).toString(16); } - }; - - function identity$3(x) { - return x; - } - - var map$2 = Array.prototype.map, - prefixes = ["y","z","a","f","p","n","µ","m","","k","M","G","T","P","E","Z","Y"]; - - function formatLocale(locale) { - var group = locale.grouping === undefined || locale.thousands === undefined ? identity$3 : formatGroup(map$2.call(locale.grouping, Number), locale.thousands + ""), - currencyPrefix = locale.currency === undefined ? "" : locale.currency[0] + "", - currencySuffix = locale.currency === undefined ? "" : locale.currency[1] + "", - decimal = locale.decimal === undefined ? "." : locale.decimal + "", - numerals = locale.numerals === undefined ? identity$3 : formatNumerals(map$2.call(locale.numerals, String)), - percent = locale.percent === undefined ? "%" : locale.percent + "", - minus = locale.minus === undefined ? "-" : locale.minus + "", - nan = locale.nan === undefined ? "NaN" : locale.nan + ""; - - function newFormat(specifier) { - specifier = formatSpecifier(specifier); - - var fill = specifier.fill, - align = specifier.align, - sign = specifier.sign, - symbol = specifier.symbol, - zero = specifier.zero, - width = specifier.width, - comma = specifier.comma, - precision = specifier.precision, - trim = specifier.trim, - type = specifier.type; - - // The "n" type is an alias for ",g". - if (type === "n") comma = true, type = "g"; - - // The "" type, and any invalid type, is an alias for ".12~g". - else if (!formatTypes[type]) precision === undefined && (precision = 12), trim = true, type = "g"; - - // If zero fill is specified, padding goes after sign and before digits. - if (zero || (fill === "0" && align === "=")) zero = true, fill = "0", align = "="; - - // Compute the prefix and suffix. - // For SI-prefix, the suffix is lazily computed. - var prefix = symbol === "$" ? currencyPrefix : symbol === "#" && /[boxX]/.test(type) ? "0" + type.toLowerCase() : "", - suffix = symbol === "$" ? currencySuffix : /[%p]/.test(type) ? percent : ""; - - // What format function should we use? - // Is this an integer type? - // Can this type generate exponential notation? - var formatType = formatTypes[type], - maybeSuffix = /[defgprs%]/.test(type); - - // Set the default precision if not specified, - // or clamp the specified precision to the supported range. - // For significant precision, it must be in [1, 21]. - // For fixed precision, it must be in [0, 20]. - precision = precision === undefined ? 6 - : /[gprs]/.test(type) ? Math.max(1, Math.min(21, precision)) - : Math.max(0, Math.min(20, precision)); - - function format(value) { - var valuePrefix = prefix, - valueSuffix = suffix, - i, n, c; - - if (type === "c") { - valueSuffix = formatType(value) + valueSuffix; - value = ""; - } else { - value = +value; - - // Determine the sign. -0 is not less than 0, but 1 / -0 is! - var valueNegative = value < 0 || 1 / value < 0; - - // Perform the initial formatting. - value = isNaN(value) ? nan : formatType(Math.abs(value), precision); - - // Trim insignificant zeros. - if (trim) value = formatTrim(value); - - // If a negative value rounds to zero after formatting, and no explicit positive sign is requested, hide the sign. - if (valueNegative && +value === 0 && sign !== "+") valueNegative = false; - - // Compute the prefix and suffix. - valuePrefix = (valueNegative ? (sign === "(" ? sign : minus) : sign === "-" || sign === "(" ? "" : sign) + valuePrefix; - valueSuffix = (type === "s" ? prefixes[8 + prefixExponent / 3] : "") + valueSuffix + (valueNegative && sign === "(" ? ")" : ""); - - // Break the formatted value into the integer “value” part that can be - // grouped, and fractional or exponential “suffix” part that is not. - if (maybeSuffix) { - i = -1, n = value.length; - while (++i < n) { - if (c = value.charCodeAt(i), 48 > c || c > 57) { - valueSuffix = (c === 46 ? decimal + value.slice(i + 1) : value.slice(i)) + valueSuffix; - value = value.slice(0, i); - break; - } - } - } - } - - // If the fill character is not "0", grouping is applied before padding. - if (comma && !zero) value = group(value, Infinity); - - // Compute the padding. - var length = valuePrefix.length + value.length + valueSuffix.length, - padding = length < width ? new Array(width - length + 1).join(fill) : ""; - - // If the fill character is "0", grouping is applied after padding. - if (comma && zero) value = group(padding + value, padding.length ? width - valueSuffix.length : Infinity), padding = ""; - - // Reconstruct the final output based on the desired alignment. - switch (align) { - case "<": value = valuePrefix + value + valueSuffix + padding; break; - case "=": value = valuePrefix + padding + value + valueSuffix; break; - case "^": value = padding.slice(0, length = padding.length >> 1) + valuePrefix + value + valueSuffix + padding.slice(length); break; - default: value = padding + valuePrefix + value + valueSuffix; break; - } - - return numerals(value); - } - - format.toString = function() { - return specifier + ""; - }; - - return format; - } - - function formatPrefix(specifier, value) { - var f = newFormat((specifier = formatSpecifier(specifier), specifier.type = "f", specifier)), - e = Math.max(-8, Math.min(8, Math.floor(exponent$1(value) / 3))) * 3, - k = Math.pow(10, -e), - prefix = prefixes[8 + e / 3]; - return function(value) { - return f(k * value) + prefix; - }; - } - - return { - format: newFormat, - formatPrefix: formatPrefix - }; - } - - var locale; - var format; - var formatPrefix; - - defaultLocale({ - decimal: ".", - thousands: ",", - grouping: [3], - currency: ["$", ""], - minus: "-" - }); - - function defaultLocale(definition) { - locale = formatLocale(definition); - format = locale.format; - formatPrefix = locale.formatPrefix; - return locale; - } - - function precisionFixed(step) { - return Math.max(0, -exponent$1(Math.abs(step))); - } - - function precisionPrefix(step, value) { - return Math.max(0, Math.max(-8, Math.min(8, Math.floor(exponent$1(value) / 3))) * 3 - exponent$1(Math.abs(step))); - } - - function precisionRound(step, max) { - step = Math.abs(step), max = Math.abs(max) - step; - return Math.max(0, exponent$1(max) - exponent$1(step)) + 1; - } - - // Adds floating point numbers with twice the normal precision. - // Reference: J. R. Shewchuk, Adaptive Precision Floating-Point Arithmetic and - // Fast Robust Geometric Predicates, Discrete & Computational Geometry 18(3) - // 305–363 (1997). - // Code adapted from GeographicLib by Charles F. F. Karney, - // http://geographiclib.sourceforge.net/ - - function adder() { - return new Adder; - } - - function Adder() { - this.reset(); - } - - Adder.prototype = { - constructor: Adder, - reset: function() { - this.s = // rounded value - this.t = 0; // exact error - }, - add: function(y) { - add$1(temp, y, this.t); - add$1(this, temp.s, this.s); - if (this.s) this.t += temp.t; - else this.s = temp.t; - }, - valueOf: function() { - return this.s; - } - }; - - var temp = new Adder; - - function add$1(adder, a, b) { - var x = adder.s = a + b, - bv = x - a, - av = x - bv; - adder.t = (a - av) + (b - bv); - } - - var epsilon$2 = 1e-6; - var epsilon2$1 = 1e-12; - var pi$3 = Math.PI; - var halfPi$2 = pi$3 / 2; - var quarterPi = pi$3 / 4; - var tau$3 = pi$3 * 2; - - var degrees$1 = 180 / pi$3; - var radians = pi$3 / 180; - - var abs = Math.abs; - var atan = Math.atan; - var atan2 = Math.atan2; - var cos$1 = Math.cos; - var ceil = Math.ceil; - var exp = Math.exp; - var log = Math.log; - var pow = Math.pow; - var sin$1 = Math.sin; - var sign = Math.sign || function(x) { return x > 0 ? 1 : x < 0 ? -1 : 0; }; - var sqrt = Math.sqrt; - var tan = Math.tan; - - function acos(x) { - return x > 1 ? 0 : x < -1 ? pi$3 : Math.acos(x); - } - - function asin(x) { - return x > 1 ? halfPi$2 : x < -1 ? -halfPi$2 : Math.asin(x); - } - - function haversin(x) { - return (x = sin$1(x / 2)) * x; - } - - function noop$2() {} - - function streamGeometry(geometry, stream) { - if (geometry && streamGeometryType.hasOwnProperty(geometry.type)) { - streamGeometryType[geometry.type](geometry, stream); - } - } - - var streamObjectType = { - Feature: function(object, stream) { - streamGeometry(object.geometry, stream); - }, - FeatureCollection: function(object, stream) { - var features = object.features, i = -1, n = features.length; - while (++i < n) streamGeometry(features[i].geometry, stream); - } - }; - - var streamGeometryType = { - Sphere: function(object, stream) { - stream.sphere(); - }, - Point: function(object, stream) { - object = object.coordinates; - stream.point(object[0], object[1], object[2]); - }, - MultiPoint: function(object, stream) { - var coordinates = object.coordinates, i = -1, n = coordinates.length; - while (++i < n) object = coordinates[i], stream.point(object[0], object[1], object[2]); - }, - LineString: function(object, stream) { - streamLine(object.coordinates, stream, 0); - }, - MultiLineString: function(object, stream) { - var coordinates = object.coordinates, i = -1, n = coordinates.length; - while (++i < n) streamLine(coordinates[i], stream, 0); - }, - Polygon: function(object, stream) { - streamPolygon(object.coordinates, stream); - }, - MultiPolygon: function(object, stream) { - var coordinates = object.coordinates, i = -1, n = coordinates.length; - while (++i < n) streamPolygon(coordinates[i], stream); - }, - GeometryCollection: function(object, stream) { - var geometries = object.geometries, i = -1, n = geometries.length; - while (++i < n) streamGeometry(geometries[i], stream); - } - }; - - function streamLine(coordinates, stream, closed) { - var i = -1, n = coordinates.length - closed, coordinate; - stream.lineStart(); - while (++i < n) coordinate = coordinates[i], stream.point(coordinate[0], coordinate[1], coordinate[2]); - stream.lineEnd(); - } - - function streamPolygon(coordinates, stream) { - var i = -1, n = coordinates.length; - stream.polygonStart(); - while (++i < n) streamLine(coordinates[i], stream, 1); - stream.polygonEnd(); - } - - function geoStream(object, stream) { - if (object && streamObjectType.hasOwnProperty(object.type)) { - streamObjectType[object.type](object, stream); - } else { - streamGeometry(object, stream); - } - } - - var areaRingSum = adder(); - - var areaSum = adder(), - lambda00, - phi00, - lambda0, - cosPhi0, - sinPhi0; - - var areaStream = { - point: noop$2, - lineStart: noop$2, - lineEnd: noop$2, - polygonStart: function() { - areaRingSum.reset(); - areaStream.lineStart = areaRingStart; - areaStream.lineEnd = areaRingEnd; - }, - polygonEnd: function() { - var areaRing = +areaRingSum; - areaSum.add(areaRing < 0 ? tau$3 + areaRing : areaRing); - this.lineStart = this.lineEnd = this.point = noop$2; - }, - sphere: function() { - areaSum.add(tau$3); - } - }; - - function areaRingStart() { - areaStream.point = areaPointFirst; - } - - function areaRingEnd() { - areaPoint(lambda00, phi00); - } - - function areaPointFirst(lambda, phi) { - areaStream.point = areaPoint; - lambda00 = lambda, phi00 = phi; - lambda *= radians, phi *= radians; - lambda0 = lambda, cosPhi0 = cos$1(phi = phi / 2 + quarterPi), sinPhi0 = sin$1(phi); - } - - function areaPoint(lambda, phi) { - lambda *= radians, phi *= radians; - phi = phi / 2 + quarterPi; // half the angular distance from south pole - - // Spherical excess E for a spherical triangle with vertices: south pole, - // previous point, current point. Uses a formula derived from Cagnoli’s - // theorem. See Todhunter, Spherical Trig. (1871), Sec. 103, Eq. (2). - var dLambda = lambda - lambda0, - sdLambda = dLambda >= 0 ? 1 : -1, - adLambda = sdLambda * dLambda, - cosPhi = cos$1(phi), - sinPhi = sin$1(phi), - k = sinPhi0 * sinPhi, - u = cosPhi0 * cosPhi + k * cos$1(adLambda), - v = k * sdLambda * sin$1(adLambda); - areaRingSum.add(atan2(v, u)); - - // Advance the previous points. - lambda0 = lambda, cosPhi0 = cosPhi, sinPhi0 = sinPhi; - } - - function area$1(object) { - areaSum.reset(); - geoStream(object, areaStream); - return areaSum * 2; - } - - function spherical(cartesian) { - return [atan2(cartesian[1], cartesian[0]), asin(cartesian[2])]; - } - - function cartesian(spherical) { - var lambda = spherical[0], phi = spherical[1], cosPhi = cos$1(phi); - return [cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi)]; - } - - function cartesianDot(a, b) { - return a[0] * b[0] + a[1] * b[1] + a[2] * b[2]; - } - - function cartesianCross(a, b) { - return [a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0]]; - } - - // TODO return a - function cartesianAddInPlace(a, b) { - a[0] += b[0], a[1] += b[1], a[2] += b[2]; - } - - function cartesianScale(vector, k) { - return [vector[0] * k, vector[1] * k, vector[2] * k]; - } - - // TODO return d - function cartesianNormalizeInPlace(d) { - var l = sqrt(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]); - d[0] /= l, d[1] /= l, d[2] /= l; - } - - var lambda0$1, phi0, lambda1, phi1, // bounds - lambda2, // previous lambda-coordinate - lambda00$1, phi00$1, // first point - p0, // previous 3D point - deltaSum = adder(), - ranges, - range; - - var boundsStream = { - point: boundsPoint, - lineStart: boundsLineStart, - lineEnd: boundsLineEnd, - polygonStart: function() { - boundsStream.point = boundsRingPoint; - boundsStream.lineStart = boundsRingStart; - boundsStream.lineEnd = boundsRingEnd; - deltaSum.reset(); - areaStream.polygonStart(); - }, - polygonEnd: function() { - areaStream.polygonEnd(); - boundsStream.point = boundsPoint; - boundsStream.lineStart = boundsLineStart; - boundsStream.lineEnd = boundsLineEnd; - if (areaRingSum < 0) lambda0$1 = -(lambda1 = 180), phi0 = -(phi1 = 90); - else if (deltaSum > epsilon$2) phi1 = 90; - else if (deltaSum < -epsilon$2) phi0 = -90; - range[0] = lambda0$1, range[1] = lambda1; - }, - sphere: function() { - lambda0$1 = -(lambda1 = 180), phi0 = -(phi1 = 90); - } - }; - - function boundsPoint(lambda, phi) { - ranges.push(range = [lambda0$1 = lambda, lambda1 = lambda]); - if (phi < phi0) phi0 = phi; - if (phi > phi1) phi1 = phi; - } - - function linePoint(lambda, phi) { - var p = cartesian([lambda * radians, phi * radians]); - if (p0) { - var normal = cartesianCross(p0, p), - equatorial = [normal[1], -normal[0], 0], - inflection = cartesianCross(equatorial, normal); - cartesianNormalizeInPlace(inflection); - inflection = spherical(inflection); - var delta = lambda - lambda2, - sign = delta > 0 ? 1 : -1, - lambdai = inflection[0] * degrees$1 * sign, - phii, - antimeridian = abs(delta) > 180; - if (antimeridian ^ (sign * lambda2 < lambdai && lambdai < sign * lambda)) { - phii = inflection[1] * degrees$1; - if (phii > phi1) phi1 = phii; - } else if (lambdai = (lambdai + 360) % 360 - 180, antimeridian ^ (sign * lambda2 < lambdai && lambdai < sign * lambda)) { - phii = -inflection[1] * degrees$1; - if (phii < phi0) phi0 = phii; - } else { - if (phi < phi0) phi0 = phi; - if (phi > phi1) phi1 = phi; - } - if (antimeridian) { - if (lambda < lambda2) { - if (angle(lambda0$1, lambda) > angle(lambda0$1, lambda1)) lambda1 = lambda; - } else { - if (angle(lambda, lambda1) > angle(lambda0$1, lambda1)) lambda0$1 = lambda; - } - } else { - if (lambda1 >= lambda0$1) { - if (lambda < lambda0$1) lambda0$1 = lambda; - if (lambda > lambda1) lambda1 = lambda; - } else { - if (lambda > lambda2) { - if (angle(lambda0$1, lambda) > angle(lambda0$1, lambda1)) lambda1 = lambda; - } else { - if (angle(lambda, lambda1) > angle(lambda0$1, lambda1)) lambda0$1 = lambda; - } - } - } - } else { - ranges.push(range = [lambda0$1 = lambda, lambda1 = lambda]); - } - if (phi < phi0) phi0 = phi; - if (phi > phi1) phi1 = phi; - p0 = p, lambda2 = lambda; - } - - function boundsLineStart() { - boundsStream.point = linePoint; - } - - function boundsLineEnd() { - range[0] = lambda0$1, range[1] = lambda1; - boundsStream.point = boundsPoint; - p0 = null; - } - - function boundsRingPoint(lambda, phi) { - if (p0) { - var delta = lambda - lambda2; - deltaSum.add(abs(delta) > 180 ? delta + (delta > 0 ? 360 : -360) : delta); - } else { - lambda00$1 = lambda, phi00$1 = phi; - } - areaStream.point(lambda, phi); - linePoint(lambda, phi); - } - - function boundsRingStart() { - areaStream.lineStart(); - } - - function boundsRingEnd() { - boundsRingPoint(lambda00$1, phi00$1); - areaStream.lineEnd(); - if (abs(deltaSum) > epsilon$2) lambda0$1 = -(lambda1 = 180); - range[0] = lambda0$1, range[1] = lambda1; - p0 = null; - } - - // Finds the left-right distance between two longitudes. - // This is almost the same as (lambda1 - lambda0 + 360°) % 360°, except that we want - // the distance between ±180° to be 360°. - function angle(lambda0, lambda1) { - return (lambda1 -= lambda0) < 0 ? lambda1 + 360 : lambda1; - } - - function rangeCompare(a, b) { - return a[0] - b[0]; - } - - function rangeContains(range, x) { - return range[0] <= range[1] ? range[0] <= x && x <= range[1] : x < range[0] || range[1] < x; - } - - function bounds(feature) { - var i, n, a, b, merged, deltaMax, delta; - - phi1 = lambda1 = -(lambda0$1 = phi0 = Infinity); - ranges = []; - geoStream(feature, boundsStream); - - // First, sort ranges by their minimum longitudes. - if (n = ranges.length) { - ranges.sort(rangeCompare); - - // Then, merge any ranges that overlap. - for (i = 1, a = ranges[0], merged = [a]; i < n; ++i) { - b = ranges[i]; - if (rangeContains(a, b[0]) || rangeContains(a, b[1])) { - if (angle(a[0], b[1]) > angle(a[0], a[1])) a[1] = b[1]; - if (angle(b[0], a[1]) > angle(a[0], a[1])) a[0] = b[0]; - } else { - merged.push(a = b); - } - } - - // Finally, find the largest gap between the merged ranges. - // The final bounding box will be the inverse of this gap. - for (deltaMax = -Infinity, n = merged.length - 1, i = 0, a = merged[n]; i <= n; a = b, ++i) { - b = merged[i]; - if ((delta = angle(a[1], b[0])) > deltaMax) deltaMax = delta, lambda0$1 = b[0], lambda1 = a[1]; - } - } - - ranges = range = null; - - return lambda0$1 === Infinity || phi0 === Infinity - ? [[NaN, NaN], [NaN, NaN]] - : [[lambda0$1, phi0], [lambda1, phi1]]; - } - - var W0, W1, - X0, Y0, Z0, - X1, Y1, Z1, - X2, Y2, Z2, - lambda00$2, phi00$2, // first point - x0, y0, z0; // previous point - - var centroidStream = { - sphere: noop$2, - point: centroidPoint, - lineStart: centroidLineStart, - lineEnd: centroidLineEnd, - polygonStart: function() { - centroidStream.lineStart = centroidRingStart; - centroidStream.lineEnd = centroidRingEnd; - }, - polygonEnd: function() { - centroidStream.lineStart = centroidLineStart; - centroidStream.lineEnd = centroidLineEnd; - } - }; - - // Arithmetic mean of Cartesian vectors. - function centroidPoint(lambda, phi) { - lambda *= radians, phi *= radians; - var cosPhi = cos$1(phi); - centroidPointCartesian(cosPhi * cos$1(lambda), cosPhi * sin$1(lambda), sin$1(phi)); - } - - function centroidPointCartesian(x, y, z) { - ++W0; - X0 += (x - X0) / W0; - Y0 += (y - Y0) / W0; - Z0 += (z - Z0) / W0; - } - - function centroidLineStart() { - centroidStream.point = centroidLinePointFirst; - } - - function centroidLinePointFirst(lambda, phi) { - lambda *= radians, phi *= radians; - var cosPhi = cos$1(phi); - x0 = cosPhi * cos$1(lambda); - y0 = cosPhi * sin$1(lambda); - z0 = sin$1(phi); - centroidStream.point = centroidLinePoint; - centroidPointCartesian(x0, y0, z0); - } - - function centroidLinePoint(lambda, phi) { - lambda *= radians, phi *= radians; - var cosPhi = cos$1(phi), - x = cosPhi * cos$1(lambda), - y = cosPhi * sin$1(lambda), - z = sin$1(phi), - w = atan2(sqrt((w = y0 * z - z0 * y) * w + (w = z0 * x - x0 * z) * w + (w = x0 * y - y0 * x) * w), x0 * x + y0 * y + z0 * z); - W1 += w; - X1 += w * (x0 + (x0 = x)); - Y1 += w * (y0 + (y0 = y)); - Z1 += w * (z0 + (z0 = z)); - centroidPointCartesian(x0, y0, z0); - } - - function centroidLineEnd() { - centroidStream.point = centroidPoint; - } - - // See J. E. Brock, The Inertia Tensor for a Spherical Triangle, - // J. Applied Mechanics 42, 239 (1975). - function centroidRingStart() { - centroidStream.point = centroidRingPointFirst; - } - - function centroidRingEnd() { - centroidRingPoint(lambda00$2, phi00$2); - centroidStream.point = centroidPoint; - } - - function centroidRingPointFirst(lambda, phi) { - lambda00$2 = lambda, phi00$2 = phi; - lambda *= radians, phi *= radians; - centroidStream.point = centroidRingPoint; - var cosPhi = cos$1(phi); - x0 = cosPhi * cos$1(lambda); - y0 = cosPhi * sin$1(lambda); - z0 = sin$1(phi); - centroidPointCartesian(x0, y0, z0); - } - - function centroidRingPoint(lambda, phi) { - lambda *= radians, phi *= radians; - var cosPhi = cos$1(phi), - x = cosPhi * cos$1(lambda), - y = cosPhi * sin$1(lambda), - z = sin$1(phi), - cx = y0 * z - z0 * y, - cy = z0 * x - x0 * z, - cz = x0 * y - y0 * x, - m = sqrt(cx * cx + cy * cy + cz * cz), - w = asin(m), // line weight = angle - v = m && -w / m; // area weight multiplier - X2 += v * cx; - Y2 += v * cy; - Z2 += v * cz; - W1 += w; - X1 += w * (x0 + (x0 = x)); - Y1 += w * (y0 + (y0 = y)); - Z1 += w * (z0 + (z0 = z)); - centroidPointCartesian(x0, y0, z0); - } - - function centroid(object) { - W0 = W1 = - X0 = Y0 = Z0 = - X1 = Y1 = Z1 = - X2 = Y2 = Z2 = 0; - geoStream(object, centroidStream); - - var x = X2, - y = Y2, - z = Z2, - m = x * x + y * y + z * z; - - // If the area-weighted ccentroid is undefined, fall back to length-weighted ccentroid. - if (m < epsilon2$1) { - x = X1, y = Y1, z = Z1; - // If the feature has zero length, fall back to arithmetic mean of point vectors. - if (W1 < epsilon$2) x = X0, y = Y0, z = Z0; - m = x * x + y * y + z * z; - // If the feature still has an undefined ccentroid, then return. - if (m < epsilon2$1) return [NaN, NaN]; - } - - return [atan2(y, x) * degrees$1, asin(z / sqrt(m)) * degrees$1]; - } - - function constant$8(x) { - return function() { - return x; - }; - } - - function compose(a, b) { - - function compose(x, y) { - return x = a(x, y), b(x[0], x[1]); - } - - if (a.invert && b.invert) compose.invert = function(x, y) { - return x = b.invert(x, y), x && a.invert(x[0], x[1]); - }; - - return compose; - } - - function rotationIdentity(lambda, phi) { - return [abs(lambda) > pi$3 ? lambda + Math.round(-lambda / tau$3) * tau$3 : lambda, phi]; - } - - rotationIdentity.invert = rotationIdentity; - - function rotateRadians(deltaLambda, deltaPhi, deltaGamma) { - return (deltaLambda %= tau$3) ? (deltaPhi || deltaGamma ? compose(rotationLambda(deltaLambda), rotationPhiGamma(deltaPhi, deltaGamma)) - : rotationLambda(deltaLambda)) - : (deltaPhi || deltaGamma ? rotationPhiGamma(deltaPhi, deltaGamma) - : rotationIdentity); - } - - function forwardRotationLambda(deltaLambda) { - return function(lambda, phi) { - return lambda += deltaLambda, [lambda > pi$3 ? lambda - tau$3 : lambda < -pi$3 ? lambda + tau$3 : lambda, phi]; - }; - } - - function rotationLambda(deltaLambda) { - var rotation = forwardRotationLambda(deltaLambda); - rotation.invert = forwardRotationLambda(-deltaLambda); - return rotation; - } - - function rotationPhiGamma(deltaPhi, deltaGamma) { - var cosDeltaPhi = cos$1(deltaPhi), - sinDeltaPhi = sin$1(deltaPhi), - cosDeltaGamma = cos$1(deltaGamma), - sinDeltaGamma = sin$1(deltaGamma); - - function rotation(lambda, phi) { - var cosPhi = cos$1(phi), - x = cos$1(lambda) * cosPhi, - y = sin$1(lambda) * cosPhi, - z = sin$1(phi), - k = z * cosDeltaPhi + x * sinDeltaPhi; - return [ - atan2(y * cosDeltaGamma - k * sinDeltaGamma, x * cosDeltaPhi - z * sinDeltaPhi), - asin(k * cosDeltaGamma + y * sinDeltaGamma) - ]; - } - - rotation.invert = function(lambda, phi) { - var cosPhi = cos$1(phi), - x = cos$1(lambda) * cosPhi, - y = sin$1(lambda) * cosPhi, - z = sin$1(phi), - k = z * cosDeltaGamma - y * sinDeltaGamma; - return [ - atan2(y * cosDeltaGamma + z * sinDeltaGamma, x * cosDeltaPhi + k * sinDeltaPhi), - asin(k * cosDeltaPhi - x * sinDeltaPhi) - ]; - }; - - return rotation; - } - - function rotation(rotate) { - rotate = rotateRadians(rotate[0] * radians, rotate[1] * radians, rotate.length > 2 ? rotate[2] * radians : 0); - - function forward(coordinates) { - coordinates = rotate(coordinates[0] * radians, coordinates[1] * radians); - return coordinates[0] *= degrees$1, coordinates[1] *= degrees$1, coordinates; - } - - forward.invert = function(coordinates) { - coordinates = rotate.invert(coordinates[0] * radians, coordinates[1] * radians); - return coordinates[0] *= degrees$1, coordinates[1] *= degrees$1, coordinates; - }; - - return forward; - } - - // Generates a circle centered at [0°, 0°], with a given radius and precision. - function circleStream(stream, radius, delta, direction, t0, t1) { - if (!delta) return; - var cosRadius = cos$1(radius), - sinRadius = sin$1(radius), - step = direction * delta; - if (t0 == null) { - t0 = radius + direction * tau$3; - t1 = radius - step / 2; - } else { - t0 = circleRadius(cosRadius, t0); - t1 = circleRadius(cosRadius, t1); - if (direction > 0 ? t0 < t1 : t0 > t1) t0 += direction * tau$3; - } - for (var point, t = t0; direction > 0 ? t > t1 : t < t1; t -= step) { - point = spherical([cosRadius, -sinRadius * cos$1(t), -sinRadius * sin$1(t)]); - stream.point(point[0], point[1]); - } - } - - // Returns the signed angle of a cartesian point relative to [cosRadius, 0, 0]. - function circleRadius(cosRadius, point) { - point = cartesian(point), point[0] -= cosRadius; - cartesianNormalizeInPlace(point); - var radius = acos(-point[1]); - return ((-point[2] < 0 ? -radius : radius) + tau$3 - epsilon$2) % tau$3; - } - - function circle() { - var center = constant$8([0, 0]), - radius = constant$8(90), - precision = constant$8(6), - ring, - rotate, - stream = {point: point}; - - function point(x, y) { - ring.push(x = rotate(x, y)); - x[0] *= degrees$1, x[1] *= degrees$1; - } - - function circle() { - var c = center.apply(this, arguments), - r = radius.apply(this, arguments) * radians, - p = precision.apply(this, arguments) * radians; - ring = []; - rotate = rotateRadians(-c[0] * radians, -c[1] * radians, 0).invert; - circleStream(stream, r, p, 1); - c = {type: "Polygon", coordinates: [ring]}; - ring = rotate = null; - return c; - } - - circle.center = function(_) { - return arguments.length ? (center = typeof _ === "function" ? _ : constant$8([+_[0], +_[1]]), circle) : center; - }; - - circle.radius = function(_) { - return arguments.length ? (radius = typeof _ === "function" ? _ : constant$8(+_), circle) : radius; - }; - - circle.precision = function(_) { - return arguments.length ? (precision = typeof _ === "function" ? _ : constant$8(+_), circle) : precision; - }; - - return circle; - } - - function clipBuffer() { - var lines = [], - line; - return { - point: function(x, y, m) { - line.push([x, y, m]); - }, - lineStart: function() { - lines.push(line = []); - }, - lineEnd: noop$2, - rejoin: function() { - if (lines.length > 1) lines.push(lines.pop().concat(lines.shift())); - }, - result: function() { - var result = lines; - lines = []; - line = null; - return result; - } - }; - } - - function pointEqual(a, b) { - return abs(a[0] - b[0]) < epsilon$2 && abs(a[1] - b[1]) < epsilon$2; - } - - function Intersection(point, points, other, entry) { - this.x = point; - this.z = points; - this.o = other; // another intersection - this.e = entry; // is an entry? - this.v = false; // visited - this.n = this.p = null; // next & previous - } - - // A generalized polygon clipping algorithm: given a polygon that has been cut - // into its visible line segments, and rejoins the segments by interpolating - // along the clip edge. - function clipRejoin(segments, compareIntersection, startInside, interpolate, stream) { - var subject = [], - clip = [], - i, - n; - - segments.forEach(function(segment) { - if ((n = segment.length - 1) <= 0) return; - var n, p0 = segment[0], p1 = segment[n], x; - - if (pointEqual(p0, p1)) { - if (!p0[2] && !p1[2]) { - stream.lineStart(); - for (i = 0; i < n; ++i) stream.point((p0 = segment[i])[0], p0[1]); - stream.lineEnd(); - return; - } - // handle degenerate cases by moving the point - p1[0] += 2 * epsilon$2; - } - - subject.push(x = new Intersection(p0, segment, null, true)); - clip.push(x.o = new Intersection(p0, null, x, false)); - subject.push(x = new Intersection(p1, segment, null, false)); - clip.push(x.o = new Intersection(p1, null, x, true)); - }); - - if (!subject.length) return; - - clip.sort(compareIntersection); - link$1(subject); - link$1(clip); - - for (i = 0, n = clip.length; i < n; ++i) { - clip[i].e = startInside = !startInside; - } - - var start = subject[0], - points, - point; - - while (1) { - // Find first unvisited intersection. - var current = start, - isSubject = true; - while (current.v) if ((current = current.n) === start) return; - points = current.z; - stream.lineStart(); - do { - current.v = current.o.v = true; - if (current.e) { - if (isSubject) { - for (i = 0, n = points.length; i < n; ++i) stream.point((point = points[i])[0], point[1]); - } else { - interpolate(current.x, current.n.x, 1, stream); - } - current = current.n; - } else { - if (isSubject) { - points = current.p.z; - for (i = points.length - 1; i >= 0; --i) stream.point((point = points[i])[0], point[1]); - } else { - interpolate(current.x, current.p.x, -1, stream); - } - current = current.p; - } - current = current.o; - points = current.z; - isSubject = !isSubject; - } while (!current.v); - stream.lineEnd(); - } - } - - function link$1(array) { - if (!(n = array.length)) return; - var n, - i = 0, - a = array[0], - b; - while (++i < n) { - a.n = b = array[i]; - b.p = a; - a = b; - } - a.n = b = array[0]; - b.p = a; - } - - var sum$1 = adder(); - - function longitude(point) { - if (abs(point[0]) <= pi$3) - return point[0]; - else - return sign(point[0]) * ((abs(point[0]) + pi$3) % tau$3 - pi$3); - } - - function polygonContains(polygon, point) { - var lambda = longitude(point), - phi = point[1], - sinPhi = sin$1(phi), - normal = [sin$1(lambda), -cos$1(lambda), 0], - angle = 0, - winding = 0; - - sum$1.reset(); - - if (sinPhi === 1) phi = halfPi$2 + epsilon$2; - else if (sinPhi === -1) phi = -halfPi$2 - epsilon$2; - - for (var i = 0, n = polygon.length; i < n; ++i) { - if (!(m = (ring = polygon[i]).length)) continue; - var ring, - m, - point0 = ring[m - 1], - lambda0 = longitude(point0), - phi0 = point0[1] / 2 + quarterPi, - sinPhi0 = sin$1(phi0), - cosPhi0 = cos$1(phi0); - - for (var j = 0; j < m; ++j, lambda0 = lambda1, sinPhi0 = sinPhi1, cosPhi0 = cosPhi1, point0 = point1) { - var point1 = ring[j], - lambda1 = longitude(point1), - phi1 = point1[1] / 2 + quarterPi, - sinPhi1 = sin$1(phi1), - cosPhi1 = cos$1(phi1), - delta = lambda1 - lambda0, - sign = delta >= 0 ? 1 : -1, - absDelta = sign * delta, - antimeridian = absDelta > pi$3, - k = sinPhi0 * sinPhi1; - - sum$1.add(atan2(k * sign * sin$1(absDelta), cosPhi0 * cosPhi1 + k * cos$1(absDelta))); - angle += antimeridian ? delta + sign * tau$3 : delta; - - // Are the longitudes either side of the point’s meridian (lambda), - // and are the latitudes smaller than the parallel (phi)? - if (antimeridian ^ lambda0 >= lambda ^ lambda1 >= lambda) { - var arc = cartesianCross(cartesian(point0), cartesian(point1)); - cartesianNormalizeInPlace(arc); - var intersection = cartesianCross(normal, arc); - cartesianNormalizeInPlace(intersection); - var phiArc = (antimeridian ^ delta >= 0 ? -1 : 1) * asin(intersection[2]); - if (phi > phiArc || phi === phiArc && (arc[0] || arc[1])) { - winding += antimeridian ^ delta >= 0 ? 1 : -1; - } - } - } - } - - // First, determine whether the South pole is inside or outside: - // - // It is inside if: - // * the polygon winds around it in a clockwise direction. - // * the polygon does not (cumulatively) wind around it, but has a negative - // (counter-clockwise) area. - // - // Second, count the (signed) number of times a segment crosses a lambda - // from the point to the South pole. If it is zero, then the point is the - // same side as the South pole. - - return (angle < -epsilon$2 || angle < epsilon$2 && sum$1 < -epsilon$2) ^ (winding & 1); - } - - function clip(pointVisible, clipLine, interpolate, start) { - return function(sink) { - var line = clipLine(sink), - ringBuffer = clipBuffer(), - ringSink = clipLine(ringBuffer), - polygonStarted = false, - polygon, - segments, - ring; - - var clip = { - point: point, - lineStart: lineStart, - lineEnd: lineEnd, - polygonStart: function() { - clip.point = pointRing; - clip.lineStart = ringStart; - clip.lineEnd = ringEnd; - segments = []; - polygon = []; - }, - polygonEnd: function() { - clip.point = point; - clip.lineStart = lineStart; - clip.lineEnd = lineEnd; - segments = merge(segments); - var startInside = polygonContains(polygon, start); - if (segments.length) { - if (!polygonStarted) sink.polygonStart(), polygonStarted = true; - clipRejoin(segments, compareIntersection, startInside, interpolate, sink); - } else if (startInside) { - if (!polygonStarted) sink.polygonStart(), polygonStarted = true; - sink.lineStart(); - interpolate(null, null, 1, sink); - sink.lineEnd(); - } - if (polygonStarted) sink.polygonEnd(), polygonStarted = false; - segments = polygon = null; - }, - sphere: function() { - sink.polygonStart(); - sink.lineStart(); - interpolate(null, null, 1, sink); - sink.lineEnd(); - sink.polygonEnd(); - } - }; - - function point(lambda, phi) { - if (pointVisible(lambda, phi)) sink.point(lambda, phi); - } - - function pointLine(lambda, phi) { - line.point(lambda, phi); - } - - function lineStart() { - clip.point = pointLine; - line.lineStart(); - } - - function lineEnd() { - clip.point = point; - line.lineEnd(); - } - - function pointRing(lambda, phi) { - ring.push([lambda, phi]); - ringSink.point(lambda, phi); - } - - function ringStart() { - ringSink.lineStart(); - ring = []; - } - - function ringEnd() { - pointRing(ring[0][0], ring[0][1]); - ringSink.lineEnd(); - - var clean = ringSink.clean(), - ringSegments = ringBuffer.result(), - i, n = ringSegments.length, m, - segment, - point; - - ring.pop(); - polygon.push(ring); - ring = null; - - if (!n) return; - - // No intersections. - if (clean & 1) { - segment = ringSegments[0]; - if ((m = segment.length - 1) > 0) { - if (!polygonStarted) sink.polygonStart(), polygonStarted = true; - sink.lineStart(); - for (i = 0; i < m; ++i) sink.point((point = segment[i])[0], point[1]); - sink.lineEnd(); - } - return; - } - - // Rejoin connected segments. - // TODO reuse ringBuffer.rejoin()? - if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift())); - - segments.push(ringSegments.filter(validSegment)); - } - - return clip; - }; - } - - function validSegment(segment) { - return segment.length > 1; - } - - // Intersections are sorted along the clip edge. For both antimeridian cutting - // and circle clipping, the same comparison is used. - function compareIntersection(a, b) { - return ((a = a.x)[0] < 0 ? a[1] - halfPi$2 - epsilon$2 : halfPi$2 - a[1]) - - ((b = b.x)[0] < 0 ? b[1] - halfPi$2 - epsilon$2 : halfPi$2 - b[1]); - } - - var clipAntimeridian = clip( - function() { return true; }, - clipAntimeridianLine, - clipAntimeridianInterpolate, - [-pi$3, -halfPi$2] - ); - - // Takes a line and cuts into visible segments. Return values: 0 - there were - // intersections or the line was empty; 1 - no intersections; 2 - there were - // intersections, and the first and last segments should be rejoined. - function clipAntimeridianLine(stream) { - var lambda0 = NaN, - phi0 = NaN, - sign0 = NaN, - clean; // no intersections - - return { - lineStart: function() { - stream.lineStart(); - clean = 1; - }, - point: function(lambda1, phi1) { - var sign1 = lambda1 > 0 ? pi$3 : -pi$3, - delta = abs(lambda1 - lambda0); - if (abs(delta - pi$3) < epsilon$2) { // line crosses a pole - stream.point(lambda0, phi0 = (phi0 + phi1) / 2 > 0 ? halfPi$2 : -halfPi$2); - stream.point(sign0, phi0); - stream.lineEnd(); - stream.lineStart(); - stream.point(sign1, phi0); - stream.point(lambda1, phi0); - clean = 0; - } else if (sign0 !== sign1 && delta >= pi$3) { // line crosses antimeridian - if (abs(lambda0 - sign0) < epsilon$2) lambda0 -= sign0 * epsilon$2; // handle degeneracies - if (abs(lambda1 - sign1) < epsilon$2) lambda1 -= sign1 * epsilon$2; - phi0 = clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1); - stream.point(sign0, phi0); - stream.lineEnd(); - stream.lineStart(); - stream.point(sign1, phi0); - clean = 0; - } - stream.point(lambda0 = lambda1, phi0 = phi1); - sign0 = sign1; - }, - lineEnd: function() { - stream.lineEnd(); - lambda0 = phi0 = NaN; - }, - clean: function() { - return 2 - clean; // if intersections, rejoin first and last segments - } - }; - } - - function clipAntimeridianIntersect(lambda0, phi0, lambda1, phi1) { - var cosPhi0, - cosPhi1, - sinLambda0Lambda1 = sin$1(lambda0 - lambda1); - return abs(sinLambda0Lambda1) > epsilon$2 - ? atan((sin$1(phi0) * (cosPhi1 = cos$1(phi1)) * sin$1(lambda1) - - sin$1(phi1) * (cosPhi0 = cos$1(phi0)) * sin$1(lambda0)) - / (cosPhi0 * cosPhi1 * sinLambda0Lambda1)) - : (phi0 + phi1) / 2; - } - - function clipAntimeridianInterpolate(from, to, direction, stream) { - var phi; - if (from == null) { - phi = direction * halfPi$2; - stream.point(-pi$3, phi); - stream.point(0, phi); - stream.point(pi$3, phi); - stream.point(pi$3, 0); - stream.point(pi$3, -phi); - stream.point(0, -phi); - stream.point(-pi$3, -phi); - stream.point(-pi$3, 0); - stream.point(-pi$3, phi); - } else if (abs(from[0] - to[0]) > epsilon$2) { - var lambda = from[0] < to[0] ? pi$3 : -pi$3; - phi = direction * lambda / 2; - stream.point(-lambda, phi); - stream.point(0, phi); - stream.point(lambda, phi); - } else { - stream.point(to[0], to[1]); - } - } - - function clipCircle(radius) { - var cr = cos$1(radius), - delta = 6 * radians, - smallRadius = cr > 0, - notHemisphere = abs(cr) > epsilon$2; // TODO optimise for this common case - - function interpolate(from, to, direction, stream) { - circleStream(stream, radius, delta, direction, from, to); - } - - function visible(lambda, phi) { - return cos$1(lambda) * cos$1(phi) > cr; - } - - // Takes a line and cuts into visible segments. Return values used for polygon - // clipping: 0 - there were intersections or the line was empty; 1 - no - // intersections 2 - there were intersections, and the first and last segments - // should be rejoined. - function clipLine(stream) { - var point0, // previous point - c0, // code for previous point - v0, // visibility of previous point - v00, // visibility of first point - clean; // no intersections - return { - lineStart: function() { - v00 = v0 = false; - clean = 1; - }, - point: function(lambda, phi) { - var point1 = [lambda, phi], - point2, - v = visible(lambda, phi), - c = smallRadius - ? v ? 0 : code(lambda, phi) - : v ? code(lambda + (lambda < 0 ? pi$3 : -pi$3), phi) : 0; - if (!point0 && (v00 = v0 = v)) stream.lineStart(); - if (v !== v0) { - point2 = intersect(point0, point1); - if (!point2 || pointEqual(point0, point2) || pointEqual(point1, point2)) - point1[2] = 1; - } - if (v !== v0) { - clean = 0; - if (v) { - // outside going in - stream.lineStart(); - point2 = intersect(point1, point0); - stream.point(point2[0], point2[1]); - } else { - // inside going out - point2 = intersect(point0, point1); - stream.point(point2[0], point2[1], 2); - stream.lineEnd(); - } - point0 = point2; - } else if (notHemisphere && point0 && smallRadius ^ v) { - var t; - // If the codes for two points are different, or are both zero, - // and there this segment intersects with the small circle. - if (!(c & c0) && (t = intersect(point1, point0, true))) { - clean = 0; - if (smallRadius) { - stream.lineStart(); - stream.point(t[0][0], t[0][1]); - stream.point(t[1][0], t[1][1]); - stream.lineEnd(); - } else { - stream.point(t[1][0], t[1][1]); - stream.lineEnd(); - stream.lineStart(); - stream.point(t[0][0], t[0][1], 3); - } - } - } - if (v && (!point0 || !pointEqual(point0, point1))) { - stream.point(point1[0], point1[1]); - } - point0 = point1, v0 = v, c0 = c; - }, - lineEnd: function() { - if (v0) stream.lineEnd(); - point0 = null; - }, - // Rejoin first and last segments if there were intersections and the first - // and last points were visible. - clean: function() { - return clean | ((v00 && v0) << 1); - } - }; - } - - // Intersects the great circle between a and b with the clip circle. - function intersect(a, b, two) { - var pa = cartesian(a), - pb = cartesian(b); - - // We have two planes, n1.p = d1 and n2.p = d2. - // Find intersection line p(t) = c1 n1 + c2 n2 + t (n1 ⨯ n2). - var n1 = [1, 0, 0], // normal - n2 = cartesianCross(pa, pb), - n2n2 = cartesianDot(n2, n2), - n1n2 = n2[0], // cartesianDot(n1, n2), - determinant = n2n2 - n1n2 * n1n2; - - // Two polar points. - if (!determinant) return !two && a; - - var c1 = cr * n2n2 / determinant, - c2 = -cr * n1n2 / determinant, - n1xn2 = cartesianCross(n1, n2), - A = cartesianScale(n1, c1), - B = cartesianScale(n2, c2); - cartesianAddInPlace(A, B); - - // Solve |p(t)|^2 = 1. - var u = n1xn2, - w = cartesianDot(A, u), - uu = cartesianDot(u, u), - t2 = w * w - uu * (cartesianDot(A, A) - 1); - - if (t2 < 0) return; - - var t = sqrt(t2), - q = cartesianScale(u, (-w - t) / uu); - cartesianAddInPlace(q, A); - q = spherical(q); - - if (!two) return q; - - // Two intersection points. - var lambda0 = a[0], - lambda1 = b[0], - phi0 = a[1], - phi1 = b[1], - z; - - if (lambda1 < lambda0) z = lambda0, lambda0 = lambda1, lambda1 = z; - - var delta = lambda1 - lambda0, - polar = abs(delta - pi$3) < epsilon$2, - meridian = polar || delta < epsilon$2; - - if (!polar && phi1 < phi0) z = phi0, phi0 = phi1, phi1 = z; - - // Check that the first point is between a and b. - if (meridian - ? polar - ? phi0 + phi1 > 0 ^ q[1] < (abs(q[0] - lambda0) < epsilon$2 ? phi0 : phi1) - : phi0 <= q[1] && q[1] <= phi1 - : delta > pi$3 ^ (lambda0 <= q[0] && q[0] <= lambda1)) { - var q1 = cartesianScale(u, (-w + t) / uu); - cartesianAddInPlace(q1, A); - return [q, spherical(q1)]; - } - } - - // Generates a 4-bit vector representing the location of a point relative to - // the small circle's bounding box. - function code(lambda, phi) { - var r = smallRadius ? radius : pi$3 - radius, - code = 0; - if (lambda < -r) code |= 1; // left - else if (lambda > r) code |= 2; // right - if (phi < -r) code |= 4; // below - else if (phi > r) code |= 8; // above - return code; - } - - return clip(visible, clipLine, interpolate, smallRadius ? [0, -radius] : [-pi$3, radius - pi$3]); - } - - function clipLine(a, b, x0, y0, x1, y1) { - var ax = a[0], - ay = a[1], - bx = b[0], - by = b[1], - t0 = 0, - t1 = 1, - dx = bx - ax, - dy = by - ay, - r; - - r = x0 - ax; - if (!dx && r > 0) return; - r /= dx; - if (dx < 0) { - if (r < t0) return; - if (r < t1) t1 = r; - } else if (dx > 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } - - r = x1 - ax; - if (!dx && r < 0) return; - r /= dx; - if (dx < 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } else if (dx > 0) { - if (r < t0) return; - if (r < t1) t1 = r; - } - - r = y0 - ay; - if (!dy && r > 0) return; - r /= dy; - if (dy < 0) { - if (r < t0) return; - if (r < t1) t1 = r; - } else if (dy > 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } - - r = y1 - ay; - if (!dy && r < 0) return; - r /= dy; - if (dy < 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } else if (dy > 0) { - if (r < t0) return; - if (r < t1) t1 = r; - } - - if (t0 > 0) a[0] = ax + t0 * dx, a[1] = ay + t0 * dy; - if (t1 < 1) b[0] = ax + t1 * dx, b[1] = ay + t1 * dy; - return true; - } - - var clipMax = 1e9, clipMin = -clipMax; - - // TODO Use d3-polygon’s polygonContains here for the ring check? - // TODO Eliminate duplicate buffering in clipBuffer and polygon.push? - - function clipRectangle(x0, y0, x1, y1) { - - function visible(x, y) { - return x0 <= x && x <= x1 && y0 <= y && y <= y1; - } - - function interpolate(from, to, direction, stream) { - var a = 0, a1 = 0; - if (from == null - || (a = corner(from, direction)) !== (a1 = corner(to, direction)) - || comparePoint(from, to) < 0 ^ direction > 0) { - do stream.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0); - while ((a = (a + direction + 4) % 4) !== a1); - } else { - stream.point(to[0], to[1]); - } - } - - function corner(p, direction) { - return abs(p[0] - x0) < epsilon$2 ? direction > 0 ? 0 : 3 - : abs(p[0] - x1) < epsilon$2 ? direction > 0 ? 2 : 1 - : abs(p[1] - y0) < epsilon$2 ? direction > 0 ? 1 : 0 - : direction > 0 ? 3 : 2; // abs(p[1] - y1) < epsilon - } - - function compareIntersection(a, b) { - return comparePoint(a.x, b.x); - } - - function comparePoint(a, b) { - var ca = corner(a, 1), - cb = corner(b, 1); - return ca !== cb ? ca - cb - : ca === 0 ? b[1] - a[1] - : ca === 1 ? a[0] - b[0] - : ca === 2 ? a[1] - b[1] - : b[0] - a[0]; - } - - return function(stream) { - var activeStream = stream, - bufferStream = clipBuffer(), - segments, - polygon, - ring, - x__, y__, v__, // first point - x_, y_, v_, // previous point - first, - clean; - - var clipStream = { - point: point, - lineStart: lineStart, - lineEnd: lineEnd, - polygonStart: polygonStart, - polygonEnd: polygonEnd - }; - - function point(x, y) { - if (visible(x, y)) activeStream.point(x, y); - } - - function polygonInside() { - var winding = 0; - - for (var i = 0, n = polygon.length; i < n; ++i) { - for (var ring = polygon[i], j = 1, m = ring.length, point = ring[0], a0, a1, b0 = point[0], b1 = point[1]; j < m; ++j) { - a0 = b0, a1 = b1, point = ring[j], b0 = point[0], b1 = point[1]; - if (a1 <= y1) { if (b1 > y1 && (b0 - a0) * (y1 - a1) > (b1 - a1) * (x0 - a0)) ++winding; } - else { if (b1 <= y1 && (b0 - a0) * (y1 - a1) < (b1 - a1) * (x0 - a0)) --winding; } - } - } - - return winding; - } - - // Buffer geometry within a polygon and then clip it en masse. - function polygonStart() { - activeStream = bufferStream, segments = [], polygon = [], clean = true; - } - - function polygonEnd() { - var startInside = polygonInside(), - cleanInside = clean && startInside, - visible = (segments = merge(segments)).length; - if (cleanInside || visible) { - stream.polygonStart(); - if (cleanInside) { - stream.lineStart(); - interpolate(null, null, 1, stream); - stream.lineEnd(); - } - if (visible) { - clipRejoin(segments, compareIntersection, startInside, interpolate, stream); - } - stream.polygonEnd(); - } - activeStream = stream, segments = polygon = ring = null; - } - - function lineStart() { - clipStream.point = linePoint; - if (polygon) polygon.push(ring = []); - first = true; - v_ = false; - x_ = y_ = NaN; - } - - // TODO rather than special-case polygons, simply handle them separately. - // Ideally, coincident intersection points should be jittered to avoid - // clipping issues. - function lineEnd() { - if (segments) { - linePoint(x__, y__); - if (v__ && v_) bufferStream.rejoin(); - segments.push(bufferStream.result()); - } - clipStream.point = point; - if (v_) activeStream.lineEnd(); - } - - function linePoint(x, y) { - var v = visible(x, y); - if (polygon) ring.push([x, y]); - if (first) { - x__ = x, y__ = y, v__ = v; - first = false; - if (v) { - activeStream.lineStart(); - activeStream.point(x, y); - } - } else { - if (v && v_) activeStream.point(x, y); - else { - var a = [x_ = Math.max(clipMin, Math.min(clipMax, x_)), y_ = Math.max(clipMin, Math.min(clipMax, y_))], - b = [x = Math.max(clipMin, Math.min(clipMax, x)), y = Math.max(clipMin, Math.min(clipMax, y))]; - if (clipLine(a, b, x0, y0, x1, y1)) { - if (!v_) { - activeStream.lineStart(); - activeStream.point(a[0], a[1]); - } - activeStream.point(b[0], b[1]); - if (!v) activeStream.lineEnd(); - clean = false; - } else if (v) { - activeStream.lineStart(); - activeStream.point(x, y); - clean = false; - } - } - } - x_ = x, y_ = y, v_ = v; - } - - return clipStream; - }; - } - - function extent$1() { - var x0 = 0, - y0 = 0, - x1 = 960, - y1 = 500, - cache, - cacheStream, - clip; - - return clip = { - stream: function(stream) { - return cache && cacheStream === stream ? cache : cache = clipRectangle(x0, y0, x1, y1)(cacheStream = stream); - }, - extent: function(_) { - return arguments.length ? (x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1], cache = cacheStream = null, clip) : [[x0, y0], [x1, y1]]; - } - }; - } - - var lengthSum = adder(), - lambda0$2, - sinPhi0$1, - cosPhi0$1; - - var lengthStream = { - sphere: noop$2, - point: noop$2, - lineStart: lengthLineStart, - lineEnd: noop$2, - polygonStart: noop$2, - polygonEnd: noop$2 - }; - - function lengthLineStart() { - lengthStream.point = lengthPointFirst; - lengthStream.lineEnd = lengthLineEnd; - } - - function lengthLineEnd() { - lengthStream.point = lengthStream.lineEnd = noop$2; - } - - function lengthPointFirst(lambda, phi) { - lambda *= radians, phi *= radians; - lambda0$2 = lambda, sinPhi0$1 = sin$1(phi), cosPhi0$1 = cos$1(phi); - lengthStream.point = lengthPoint; - } - - function lengthPoint(lambda, phi) { - lambda *= radians, phi *= radians; - var sinPhi = sin$1(phi), - cosPhi = cos$1(phi), - delta = abs(lambda - lambda0$2), - cosDelta = cos$1(delta), - sinDelta = sin$1(delta), - x = cosPhi * sinDelta, - y = cosPhi0$1 * sinPhi - sinPhi0$1 * cosPhi * cosDelta, - z = sinPhi0$1 * sinPhi + cosPhi0$1 * cosPhi * cosDelta; - lengthSum.add(atan2(sqrt(x * x + y * y), z)); - lambda0$2 = lambda, sinPhi0$1 = sinPhi, cosPhi0$1 = cosPhi; - } - - function length$1(object) { - lengthSum.reset(); - geoStream(object, lengthStream); - return +lengthSum; - } - - var coordinates = [null, null], - object$1 = {type: "LineString", coordinates: coordinates}; - - function distance(a, b) { - coordinates[0] = a; - coordinates[1] = b; - return length$1(object$1); - } - - var containsObjectType = { - Feature: function(object, point) { - return containsGeometry(object.geometry, point); - }, - FeatureCollection: function(object, point) { - var features = object.features, i = -1, n = features.length; - while (++i < n) if (containsGeometry(features[i].geometry, point)) return true; - return false; - } - }; - - var containsGeometryType = { - Sphere: function() { - return true; - }, - Point: function(object, point) { - return containsPoint(object.coordinates, point); - }, - MultiPoint: function(object, point) { - var coordinates = object.coordinates, i = -1, n = coordinates.length; - while (++i < n) if (containsPoint(coordinates[i], point)) return true; - return false; - }, - LineString: function(object, point) { - return containsLine(object.coordinates, point); - }, - MultiLineString: function(object, point) { - var coordinates = object.coordinates, i = -1, n = coordinates.length; - while (++i < n) if (containsLine(coordinates[i], point)) return true; - return false; - }, - Polygon: function(object, point) { - return containsPolygon(object.coordinates, point); - }, - MultiPolygon: function(object, point) { - var coordinates = object.coordinates, i = -1, n = coordinates.length; - while (++i < n) if (containsPolygon(coordinates[i], point)) return true; - return false; - }, - GeometryCollection: function(object, point) { - var geometries = object.geometries, i = -1, n = geometries.length; - while (++i < n) if (containsGeometry(geometries[i], point)) return true; - return false; - } - }; - - function containsGeometry(geometry, point) { - return geometry && containsGeometryType.hasOwnProperty(geometry.type) - ? containsGeometryType[geometry.type](geometry, point) - : false; - } - - function containsPoint(coordinates, point) { - return distance(coordinates, point) === 0; - } - - function containsLine(coordinates, point) { - var ao, bo, ab; - for (var i = 0, n = coordinates.length; i < n; i++) { - bo = distance(coordinates[i], point); - if (bo === 0) return true; - if (i > 0) { - ab = distance(coordinates[i], coordinates[i - 1]); - if ( - ab > 0 && - ao <= ab && - bo <= ab && - (ao + bo - ab) * (1 - Math.pow((ao - bo) / ab, 2)) < epsilon2$1 * ab - ) - return true; - } - ao = bo; - } - return false; - } - - function containsPolygon(coordinates, point) { - return !!polygonContains(coordinates.map(ringRadians), pointRadians(point)); - } - - function ringRadians(ring) { - return ring = ring.map(pointRadians), ring.pop(), ring; - } - - function pointRadians(point) { - return [point[0] * radians, point[1] * radians]; - } - - function contains$1(object, point) { - return (object && containsObjectType.hasOwnProperty(object.type) - ? containsObjectType[object.type] - : containsGeometry)(object, point); - } - - function graticuleX(y0, y1, dy) { - var y = sequence(y0, y1 - epsilon$2, dy).concat(y1); - return function(x) { return y.map(function(y) { return [x, y]; }); }; - } - - function graticuleY(x0, x1, dx) { - var x = sequence(x0, x1 - epsilon$2, dx).concat(x1); - return function(y) { return x.map(function(x) { return [x, y]; }); }; - } - - function graticule() { - var x1, x0, X1, X0, - y1, y0, Y1, Y0, - dx = 10, dy = dx, DX = 90, DY = 360, - x, y, X, Y, - precision = 2.5; - - function graticule() { - return {type: "MultiLineString", coordinates: lines()}; - } - - function lines() { - return sequence(ceil(X0 / DX) * DX, X1, DX).map(X) - .concat(sequence(ceil(Y0 / DY) * DY, Y1, DY).map(Y)) - .concat(sequence(ceil(x0 / dx) * dx, x1, dx).filter(function(x) { return abs(x % DX) > epsilon$2; }).map(x)) - .concat(sequence(ceil(y0 / dy) * dy, y1, dy).filter(function(y) { return abs(y % DY) > epsilon$2; }).map(y)); - } - - graticule.lines = function() { - return lines().map(function(coordinates) { return {type: "LineString", coordinates: coordinates}; }); - }; - - graticule.outline = function() { - return { - type: "Polygon", - coordinates: [ - X(X0).concat( - Y(Y1).slice(1), - X(X1).reverse().slice(1), - Y(Y0).reverse().slice(1)) - ] - }; - }; - - graticule.extent = function(_) { - if (!arguments.length) return graticule.extentMinor(); - return graticule.extentMajor(_).extentMinor(_); - }; - - graticule.extentMajor = function(_) { - if (!arguments.length) return [[X0, Y0], [X1, Y1]]; - X0 = +_[0][0], X1 = +_[1][0]; - Y0 = +_[0][1], Y1 = +_[1][1]; - if (X0 > X1) _ = X0, X0 = X1, X1 = _; - if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _; - return graticule.precision(precision); - }; - - graticule.extentMinor = function(_) { - if (!arguments.length) return [[x0, y0], [x1, y1]]; - x0 = +_[0][0], x1 = +_[1][0]; - y0 = +_[0][1], y1 = +_[1][1]; - if (x0 > x1) _ = x0, x0 = x1, x1 = _; - if (y0 > y1) _ = y0, y0 = y1, y1 = _; - return graticule.precision(precision); - }; - - graticule.step = function(_) { - if (!arguments.length) return graticule.stepMinor(); - return graticule.stepMajor(_).stepMinor(_); - }; - - graticule.stepMajor = function(_) { - if (!arguments.length) return [DX, DY]; - DX = +_[0], DY = +_[1]; - return graticule; - }; - - graticule.stepMinor = function(_) { - if (!arguments.length) return [dx, dy]; - dx = +_[0], dy = +_[1]; - return graticule; - }; - - graticule.precision = function(_) { - if (!arguments.length) return precision; - precision = +_; - x = graticuleX(y0, y1, 90); - y = graticuleY(x0, x1, precision); - X = graticuleX(Y0, Y1, 90); - Y = graticuleY(X0, X1, precision); - return graticule; - }; - - return graticule - .extentMajor([[-180, -90 + epsilon$2], [180, 90 - epsilon$2]]) - .extentMinor([[-180, -80 - epsilon$2], [180, 80 + epsilon$2]]); - } - - function graticule10() { - return graticule()(); - } - - function interpolate$1(a, b) { - var x0 = a[0] * radians, - y0 = a[1] * radians, - x1 = b[0] * radians, - y1 = b[1] * radians, - cy0 = cos$1(y0), - sy0 = sin$1(y0), - cy1 = cos$1(y1), - sy1 = sin$1(y1), - kx0 = cy0 * cos$1(x0), - ky0 = cy0 * sin$1(x0), - kx1 = cy1 * cos$1(x1), - ky1 = cy1 * sin$1(x1), - d = 2 * asin(sqrt(haversin(y1 - y0) + cy0 * cy1 * haversin(x1 - x0))), - k = sin$1(d); - - var interpolate = d ? function(t) { - var B = sin$1(t *= d) / k, - A = sin$1(d - t) / k, - x = A * kx0 + B * kx1, - y = A * ky0 + B * ky1, - z = A * sy0 + B * sy1; - return [ - atan2(y, x) * degrees$1, - atan2(z, sqrt(x * x + y * y)) * degrees$1 - ]; - } : function() { - return [x0 * degrees$1, y0 * degrees$1]; - }; - - interpolate.distance = d; - - return interpolate; - } - - function identity$4(x) { - return x; - } - - var areaSum$1 = adder(), - areaRingSum$1 = adder(), - x00, - y00, - x0$1, - y0$1; - - var areaStream$1 = { - point: noop$2, - lineStart: noop$2, - lineEnd: noop$2, - polygonStart: function() { - areaStream$1.lineStart = areaRingStart$1; - areaStream$1.lineEnd = areaRingEnd$1; - }, - polygonEnd: function() { - areaStream$1.lineStart = areaStream$1.lineEnd = areaStream$1.point = noop$2; - areaSum$1.add(abs(areaRingSum$1)); - areaRingSum$1.reset(); - }, - result: function() { - var area = areaSum$1 / 2; - areaSum$1.reset(); - return area; - } - }; - - function areaRingStart$1() { - areaStream$1.point = areaPointFirst$1; - } - - function areaPointFirst$1(x, y) { - areaStream$1.point = areaPoint$1; - x00 = x0$1 = x, y00 = y0$1 = y; - } - - function areaPoint$1(x, y) { - areaRingSum$1.add(y0$1 * x - x0$1 * y); - x0$1 = x, y0$1 = y; - } - - function areaRingEnd$1() { - areaPoint$1(x00, y00); - } - - var x0$2 = Infinity, - y0$2 = x0$2, - x1 = -x0$2, - y1 = x1; - - var boundsStream$1 = { - point: boundsPoint$1, - lineStart: noop$2, - lineEnd: noop$2, - polygonStart: noop$2, - polygonEnd: noop$2, - result: function() { - var bounds = [[x0$2, y0$2], [x1, y1]]; - x1 = y1 = -(y0$2 = x0$2 = Infinity); - return bounds; - } - }; - - function boundsPoint$1(x, y) { - if (x < x0$2) x0$2 = x; - if (x > x1) x1 = x; - if (y < y0$2) y0$2 = y; - if (y > y1) y1 = y; - } - - // TODO Enforce positive area for exterior, negative area for interior? - - var X0$1 = 0, - Y0$1 = 0, - Z0$1 = 0, - X1$1 = 0, - Y1$1 = 0, - Z1$1 = 0, - X2$1 = 0, - Y2$1 = 0, - Z2$1 = 0, - x00$1, - y00$1, - x0$3, - y0$3; - - var centroidStream$1 = { - point: centroidPoint$1, - lineStart: centroidLineStart$1, - lineEnd: centroidLineEnd$1, - polygonStart: function() { - centroidStream$1.lineStart = centroidRingStart$1; - centroidStream$1.lineEnd = centroidRingEnd$1; - }, - polygonEnd: function() { - centroidStream$1.point = centroidPoint$1; - centroidStream$1.lineStart = centroidLineStart$1; - centroidStream$1.lineEnd = centroidLineEnd$1; - }, - result: function() { - var centroid = Z2$1 ? [X2$1 / Z2$1, Y2$1 / Z2$1] - : Z1$1 ? [X1$1 / Z1$1, Y1$1 / Z1$1] - : Z0$1 ? [X0$1 / Z0$1, Y0$1 / Z0$1] - : [NaN, NaN]; - X0$1 = Y0$1 = Z0$1 = - X1$1 = Y1$1 = Z1$1 = - X2$1 = Y2$1 = Z2$1 = 0; - return centroid; - } - }; - - function centroidPoint$1(x, y) { - X0$1 += x; - Y0$1 += y; - ++Z0$1; - } - - function centroidLineStart$1() { - centroidStream$1.point = centroidPointFirstLine; - } - - function centroidPointFirstLine(x, y) { - centroidStream$1.point = centroidPointLine; - centroidPoint$1(x0$3 = x, y0$3 = y); - } - - function centroidPointLine(x, y) { - var dx = x - x0$3, dy = y - y0$3, z = sqrt(dx * dx + dy * dy); - X1$1 += z * (x0$3 + x) / 2; - Y1$1 += z * (y0$3 + y) / 2; - Z1$1 += z; - centroidPoint$1(x0$3 = x, y0$3 = y); - } - - function centroidLineEnd$1() { - centroidStream$1.point = centroidPoint$1; - } - - function centroidRingStart$1() { - centroidStream$1.point = centroidPointFirstRing; - } - - function centroidRingEnd$1() { - centroidPointRing(x00$1, y00$1); - } - - function centroidPointFirstRing(x, y) { - centroidStream$1.point = centroidPointRing; - centroidPoint$1(x00$1 = x0$3 = x, y00$1 = y0$3 = y); - } - - function centroidPointRing(x, y) { - var dx = x - x0$3, - dy = y - y0$3, - z = sqrt(dx * dx + dy * dy); - - X1$1 += z * (x0$3 + x) / 2; - Y1$1 += z * (y0$3 + y) / 2; - Z1$1 += z; - - z = y0$3 * x - x0$3 * y; - X2$1 += z * (x0$3 + x); - Y2$1 += z * (y0$3 + y); - Z2$1 += z * 3; - centroidPoint$1(x0$3 = x, y0$3 = y); - } - - function PathContext(context) { - this._context = context; - } - - PathContext.prototype = { - _radius: 4.5, - pointRadius: function(_) { - return this._radius = _, this; - }, - polygonStart: function() { - this._line = 0; - }, - polygonEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._point = 0; - }, - lineEnd: function() { - if (this._line === 0) this._context.closePath(); - this._point = NaN; - }, - point: function(x, y) { - switch (this._point) { - case 0: { - this._context.moveTo(x, y); - this._point = 1; - break; - } - case 1: { - this._context.lineTo(x, y); - break; - } - default: { - this._context.moveTo(x + this._radius, y); - this._context.arc(x, y, this._radius, 0, tau$3); - break; - } - } - }, - result: noop$2 - }; - - var lengthSum$1 = adder(), - lengthRing, - x00$2, - y00$2, - x0$4, - y0$4; - - var lengthStream$1 = { - point: noop$2, - lineStart: function() { - lengthStream$1.point = lengthPointFirst$1; - }, - lineEnd: function() { - if (lengthRing) lengthPoint$1(x00$2, y00$2); - lengthStream$1.point = noop$2; - }, - polygonStart: function() { - lengthRing = true; - }, - polygonEnd: function() { - lengthRing = null; - }, - result: function() { - var length = +lengthSum$1; - lengthSum$1.reset(); - return length; - } - }; - - function lengthPointFirst$1(x, y) { - lengthStream$1.point = lengthPoint$1; - x00$2 = x0$4 = x, y00$2 = y0$4 = y; - } - - function lengthPoint$1(x, y) { - x0$4 -= x, y0$4 -= y; - lengthSum$1.add(sqrt(x0$4 * x0$4 + y0$4 * y0$4)); - x0$4 = x, y0$4 = y; - } - - function PathString() { - this._string = []; - } - - PathString.prototype = { - _radius: 4.5, - _circle: circle$1(4.5), - pointRadius: function(_) { - if ((_ = +_) !== this._radius) this._radius = _, this._circle = null; - return this; - }, - polygonStart: function() { - this._line = 0; - }, - polygonEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._point = 0; - }, - lineEnd: function() { - if (this._line === 0) this._string.push("Z"); - this._point = NaN; - }, - point: function(x, y) { - switch (this._point) { - case 0: { - this._string.push("M", x, ",", y); - this._point = 1; - break; - } - case 1: { - this._string.push("L", x, ",", y); - break; - } - default: { - if (this._circle == null) this._circle = circle$1(this._radius); - this._string.push("M", x, ",", y, this._circle); - break; - } - } - }, - result: function() { - if (this._string.length) { - var result = this._string.join(""); - this._string = []; - return result; - } else { - return null; - } - } - }; - - function circle$1(radius) { - return "m0," + radius - + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius - + "a" + radius + "," + radius + " 0 1,1 0," + 2 * radius - + "z"; - } - - function index$1(projection, context) { - var pointRadius = 4.5, - projectionStream, - contextStream; - - function path(object) { - if (object) { - if (typeof pointRadius === "function") contextStream.pointRadius(+pointRadius.apply(this, arguments)); - geoStream(object, projectionStream(contextStream)); - } - return contextStream.result(); - } - - path.area = function(object) { - geoStream(object, projectionStream(areaStream$1)); - return areaStream$1.result(); - }; - - path.measure = function(object) { - geoStream(object, projectionStream(lengthStream$1)); - return lengthStream$1.result(); - }; - - path.bounds = function(object) { - geoStream(object, projectionStream(boundsStream$1)); - return boundsStream$1.result(); - }; - - path.centroid = function(object) { - geoStream(object, projectionStream(centroidStream$1)); - return centroidStream$1.result(); - }; - - path.projection = function(_) { - return arguments.length ? (projectionStream = _ == null ? (projection = null, identity$4) : (projection = _).stream, path) : projection; - }; - - path.context = function(_) { - if (!arguments.length) return context; - contextStream = _ == null ? (context = null, new PathString) : new PathContext(context = _); - if (typeof pointRadius !== "function") contextStream.pointRadius(pointRadius); - return path; - }; - - path.pointRadius = function(_) { - if (!arguments.length) return pointRadius; - pointRadius = typeof _ === "function" ? _ : (contextStream.pointRadius(+_), +_); - return path; - }; - - return path.projection(projection).context(context); - } - - function transform(methods) { - return { - stream: transformer(methods) - }; - } - - function transformer(methods) { - return function(stream) { - var s = new TransformStream; - for (var key in methods) s[key] = methods[key]; - s.stream = stream; - return s; - }; - } - - function TransformStream() {} - - TransformStream.prototype = { - constructor: TransformStream, - point: function(x, y) { this.stream.point(x, y); }, - sphere: function() { this.stream.sphere(); }, - lineStart: function() { this.stream.lineStart(); }, - lineEnd: function() { this.stream.lineEnd(); }, - polygonStart: function() { this.stream.polygonStart(); }, - polygonEnd: function() { this.stream.polygonEnd(); } - }; - - function fit(projection, fitBounds, object) { - var clip = projection.clipExtent && projection.clipExtent(); - projection.scale(150).translate([0, 0]); - if (clip != null) projection.clipExtent(null); - geoStream(object, projection.stream(boundsStream$1)); - fitBounds(boundsStream$1.result()); - if (clip != null) projection.clipExtent(clip); - return projection; - } - - function fitExtent(projection, extent, object) { - return fit(projection, function(b) { - var w = extent[1][0] - extent[0][0], - h = extent[1][1] - extent[0][1], - k = Math.min(w / (b[1][0] - b[0][0]), h / (b[1][1] - b[0][1])), - x = +extent[0][0] + (w - k * (b[1][0] + b[0][0])) / 2, - y = +extent[0][1] + (h - k * (b[1][1] + b[0][1])) / 2; - projection.scale(150 * k).translate([x, y]); - }, object); - } - - function fitSize(projection, size, object) { - return fitExtent(projection, [[0, 0], size], object); - } - - function fitWidth(projection, width, object) { - return fit(projection, function(b) { - var w = +width, - k = w / (b[1][0] - b[0][0]), - x = (w - k * (b[1][0] + b[0][0])) / 2, - y = -k * b[0][1]; - projection.scale(150 * k).translate([x, y]); - }, object); - } - - function fitHeight(projection, height, object) { - return fit(projection, function(b) { - var h = +height, - k = h / (b[1][1] - b[0][1]), - x = -k * b[0][0], - y = (h - k * (b[1][1] + b[0][1])) / 2; - projection.scale(150 * k).translate([x, y]); - }, object); - } - - var maxDepth = 16, // maximum depth of subdivision - cosMinDistance = cos$1(30 * radians); // cos(minimum angular distance) - - function resample(project, delta2) { - return +delta2 ? resample$1(project, delta2) : resampleNone(project); - } - - function resampleNone(project) { - return transformer({ - point: function(x, y) { - x = project(x, y); - this.stream.point(x[0], x[1]); - } - }); - } - - function resample$1(project, delta2) { - - function resampleLineTo(x0, y0, lambda0, a0, b0, c0, x1, y1, lambda1, a1, b1, c1, depth, stream) { - var dx = x1 - x0, - dy = y1 - y0, - d2 = dx * dx + dy * dy; - if (d2 > 4 * delta2 && depth--) { - var a = a0 + a1, - b = b0 + b1, - c = c0 + c1, - m = sqrt(a * a + b * b + c * c), - phi2 = asin(c /= m), - lambda2 = abs(abs(c) - 1) < epsilon$2 || abs(lambda0 - lambda1) < epsilon$2 ? (lambda0 + lambda1) / 2 : atan2(b, a), - p = project(lambda2, phi2), - x2 = p[0], - y2 = p[1], - dx2 = x2 - x0, - dy2 = y2 - y0, - dz = dy * dx2 - dx * dy2; - if (dz * dz / d2 > delta2 // perpendicular projected distance - || abs((dx * dx2 + dy * dy2) / d2 - 0.5) > 0.3 // midpoint close to an end - || a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) { // angular distance - resampleLineTo(x0, y0, lambda0, a0, b0, c0, x2, y2, lambda2, a /= m, b /= m, c, depth, stream); - stream.point(x2, y2); - resampleLineTo(x2, y2, lambda2, a, b, c, x1, y1, lambda1, a1, b1, c1, depth, stream); - } - } - } - return function(stream) { - var lambda00, x00, y00, a00, b00, c00, // first point - lambda0, x0, y0, a0, b0, c0; // previous point - - var resampleStream = { - point: point, - lineStart: lineStart, - lineEnd: lineEnd, - polygonStart: function() { stream.polygonStart(); resampleStream.lineStart = ringStart; }, - polygonEnd: function() { stream.polygonEnd(); resampleStream.lineStart = lineStart; } - }; - - function point(x, y) { - x = project(x, y); - stream.point(x[0], x[1]); - } - - function lineStart() { - x0 = NaN; - resampleStream.point = linePoint; - stream.lineStart(); - } - - function linePoint(lambda, phi) { - var c = cartesian([lambda, phi]), p = project(lambda, phi); - resampleLineTo(x0, y0, lambda0, a0, b0, c0, x0 = p[0], y0 = p[1], lambda0 = lambda, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream); - stream.point(x0, y0); - } - - function lineEnd() { - resampleStream.point = point; - stream.lineEnd(); - } - - function ringStart() { - lineStart(); - resampleStream.point = ringPoint; - resampleStream.lineEnd = ringEnd; - } - - function ringPoint(lambda, phi) { - linePoint(lambda00 = lambda, phi), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0; - resampleStream.point = linePoint; - } - - function ringEnd() { - resampleLineTo(x0, y0, lambda0, a0, b0, c0, x00, y00, lambda00, a00, b00, c00, maxDepth, stream); - resampleStream.lineEnd = lineEnd; - lineEnd(); - } - - return resampleStream; - }; - } - - var transformRadians = transformer({ - point: function(x, y) { - this.stream.point(x * radians, y * radians); - } - }); - - function transformRotate(rotate) { - return transformer({ - point: function(x, y) { - var r = rotate(x, y); - return this.stream.point(r[0], r[1]); - } - }); - } - - function scaleTranslate(k, dx, dy, sx, sy) { - function transform(x, y) { - x *= sx; y *= sy; - return [dx + k * x, dy - k * y]; - } - transform.invert = function(x, y) { - return [(x - dx) / k * sx, (dy - y) / k * sy]; - }; - return transform; - } - - function scaleTranslateRotate(k, dx, dy, sx, sy, alpha) { - var cosAlpha = cos$1(alpha), - sinAlpha = sin$1(alpha), - a = cosAlpha * k, - b = sinAlpha * k, - ai = cosAlpha / k, - bi = sinAlpha / k, - ci = (sinAlpha * dy - cosAlpha * dx) / k, - fi = (sinAlpha * dx + cosAlpha * dy) / k; - function transform(x, y) { - x *= sx; y *= sy; - return [a * x - b * y + dx, dy - b * x - a * y]; - } - transform.invert = function(x, y) { - return [sx * (ai * x - bi * y + ci), sy * (fi - bi * x - ai * y)]; - }; - return transform; - } - - function projection(project) { - return projectionMutator(function() { return project; })(); - } - - function projectionMutator(projectAt) { - var project, - k = 150, // scale - x = 480, y = 250, // translate - lambda = 0, phi = 0, // center - deltaLambda = 0, deltaPhi = 0, deltaGamma = 0, rotate, // pre-rotate - alpha = 0, // post-rotate angle - sx = 1, // reflectX - sy = 1, // reflectX - theta = null, preclip = clipAntimeridian, // pre-clip angle - x0 = null, y0, x1, y1, postclip = identity$4, // post-clip extent - delta2 = 0.5, // precision - projectResample, - projectTransform, - projectRotateTransform, - cache, - cacheStream; - - function projection(point) { - return projectRotateTransform(point[0] * radians, point[1] * radians); - } - - function invert(point) { - point = projectRotateTransform.invert(point[0], point[1]); - return point && [point[0] * degrees$1, point[1] * degrees$1]; - } - - projection.stream = function(stream) { - return cache && cacheStream === stream ? cache : cache = transformRadians(transformRotate(rotate)(preclip(projectResample(postclip(cacheStream = stream))))); - }; - - projection.preclip = function(_) { - return arguments.length ? (preclip = _, theta = undefined, reset()) : preclip; - }; - - projection.postclip = function(_) { - return arguments.length ? (postclip = _, x0 = y0 = x1 = y1 = null, reset()) : postclip; - }; - - projection.clipAngle = function(_) { - return arguments.length ? (preclip = +_ ? clipCircle(theta = _ * radians) : (theta = null, clipAntimeridian), reset()) : theta * degrees$1; - }; - - projection.clipExtent = function(_) { - return arguments.length ? (postclip = _ == null ? (x0 = y0 = x1 = y1 = null, identity$4) : clipRectangle(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]), reset()) : x0 == null ? null : [[x0, y0], [x1, y1]]; - }; - - projection.scale = function(_) { - return arguments.length ? (k = +_, recenter()) : k; - }; - - projection.translate = function(_) { - return arguments.length ? (x = +_[0], y = +_[1], recenter()) : [x, y]; - }; - - projection.center = function(_) { - return arguments.length ? (lambda = _[0] % 360 * radians, phi = _[1] % 360 * radians, recenter()) : [lambda * degrees$1, phi * degrees$1]; - }; - - projection.rotate = function(_) { - return arguments.length ? (deltaLambda = _[0] % 360 * radians, deltaPhi = _[1] % 360 * radians, deltaGamma = _.length > 2 ? _[2] % 360 * radians : 0, recenter()) : [deltaLambda * degrees$1, deltaPhi * degrees$1, deltaGamma * degrees$1]; - }; - - projection.angle = function(_) { - return arguments.length ? (alpha = _ % 360 * radians, recenter()) : alpha * degrees$1; - }; - - projection.reflectX = function(_) { - return arguments.length ? (sx = _ ? -1 : 1, recenter()) : sx < 0; - }; - - projection.reflectY = function(_) { - return arguments.length ? (sy = _ ? -1 : 1, recenter()) : sy < 0; - }; - - projection.precision = function(_) { - return arguments.length ? (projectResample = resample(projectTransform, delta2 = _ * _), reset()) : sqrt(delta2); - }; - - projection.fitExtent = function(extent, object) { - return fitExtent(projection, extent, object); - }; - - projection.fitSize = function(size, object) { - return fitSize(projection, size, object); - }; - - projection.fitWidth = function(width, object) { - return fitWidth(projection, width, object); - }; - - projection.fitHeight = function(height, object) { - return fitHeight(projection, height, object); - }; - - function recenter() { - var center = scaleTranslateRotate(k, 0, 0, sx, sy, alpha).apply(null, project(lambda, phi)), - transform = (alpha ? scaleTranslateRotate : scaleTranslate)(k, x - center[0], y - center[1], sx, sy, alpha); - rotate = rotateRadians(deltaLambda, deltaPhi, deltaGamma); - projectTransform = compose(project, transform); - projectRotateTransform = compose(rotate, projectTransform); - projectResample = resample(projectTransform, delta2); - return reset(); - } - - function reset() { - cache = cacheStream = null; - return projection; - } - - return function() { - project = projectAt.apply(this, arguments); - projection.invert = project.invert && invert; - return recenter(); - }; - } - - function conicProjection(projectAt) { - var phi0 = 0, - phi1 = pi$3 / 3, - m = projectionMutator(projectAt), - p = m(phi0, phi1); - - p.parallels = function(_) { - return arguments.length ? m(phi0 = _[0] * radians, phi1 = _[1] * radians) : [phi0 * degrees$1, phi1 * degrees$1]; - }; - - return p; - } - - function cylindricalEqualAreaRaw(phi0) { - var cosPhi0 = cos$1(phi0); - - function forward(lambda, phi) { - return [lambda * cosPhi0, sin$1(phi) / cosPhi0]; - } - - forward.invert = function(x, y) { - return [x / cosPhi0, asin(y * cosPhi0)]; - }; - - return forward; - } - - function conicEqualAreaRaw(y0, y1) { - var sy0 = sin$1(y0), n = (sy0 + sin$1(y1)) / 2; - - // Are the parallels symmetrical around the Equator? - if (abs(n) < epsilon$2) return cylindricalEqualAreaRaw(y0); - - var c = 1 + sy0 * (2 * n - sy0), r0 = sqrt(c) / n; - - function project(x, y) { - var r = sqrt(c - 2 * n * sin$1(y)) / n; - return [r * sin$1(x *= n), r0 - r * cos$1(x)]; - } - - project.invert = function(x, y) { - var r0y = r0 - y, - l = atan2(x, abs(r0y)) * sign(r0y); - if (r0y * n < 0) - l -= pi$3 * sign(x) * sign(r0y); - return [l / n, asin((c - (x * x + r0y * r0y) * n * n) / (2 * n))]; - }; - - return project; - } - - function conicEqualArea() { - return conicProjection(conicEqualAreaRaw) - .scale(155.424) - .center([0, 33.6442]); - } - - function albers() { - return conicEqualArea() - .parallels([29.5, 45.5]) - .scale(1070) - .translate([480, 250]) - .rotate([96, 0]) - .center([-0.6, 38.7]); - } - - // The projections must have mutually exclusive clip regions on the sphere, - // as this will avoid emitting interleaving lines and polygons. - function multiplex(streams) { - var n = streams.length; - return { - point: function(x, y) { var i = -1; while (++i < n) streams[i].point(x, y); }, - sphere: function() { var i = -1; while (++i < n) streams[i].sphere(); }, - lineStart: function() { var i = -1; while (++i < n) streams[i].lineStart(); }, - lineEnd: function() { var i = -1; while (++i < n) streams[i].lineEnd(); }, - polygonStart: function() { var i = -1; while (++i < n) streams[i].polygonStart(); }, - polygonEnd: function() { var i = -1; while (++i < n) streams[i].polygonEnd(); } - }; - } - - // A composite projection for the United States, configured by default for - // 960×500. The projection also works quite well at 960×600 if you change the - // scale to 1285 and adjust the translate accordingly. The set of standard - // parallels for each region comes from USGS, which is published here: - // http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html#albers - function albersUsa() { - var cache, - cacheStream, - lower48 = albers(), lower48Point, - alaska = conicEqualArea().rotate([154, 0]).center([-2, 58.5]).parallels([55, 65]), alaskaPoint, // EPSG:3338 - hawaii = conicEqualArea().rotate([157, 0]).center([-3, 19.9]).parallels([8, 18]), hawaiiPoint, // ESRI:102007 - point, pointStream = {point: function(x, y) { point = [x, y]; }}; - - function albersUsa(coordinates) { - var x = coordinates[0], y = coordinates[1]; - return point = null, - (lower48Point.point(x, y), point) - || (alaskaPoint.point(x, y), point) - || (hawaiiPoint.point(x, y), point); - } - - albersUsa.invert = function(coordinates) { - var k = lower48.scale(), - t = lower48.translate(), - x = (coordinates[0] - t[0]) / k, - y = (coordinates[1] - t[1]) / k; - return (y >= 0.120 && y < 0.234 && x >= -0.425 && x < -0.214 ? alaska - : y >= 0.166 && y < 0.234 && x >= -0.214 && x < -0.115 ? hawaii - : lower48).invert(coordinates); - }; - - albersUsa.stream = function(stream) { - return cache && cacheStream === stream ? cache : cache = multiplex([lower48.stream(cacheStream = stream), alaska.stream(stream), hawaii.stream(stream)]); - }; - - albersUsa.precision = function(_) { - if (!arguments.length) return lower48.precision(); - lower48.precision(_), alaska.precision(_), hawaii.precision(_); - return reset(); - }; - - albersUsa.scale = function(_) { - if (!arguments.length) return lower48.scale(); - lower48.scale(_), alaska.scale(_ * 0.35), hawaii.scale(_); - return albersUsa.translate(lower48.translate()); - }; - - albersUsa.translate = function(_) { - if (!arguments.length) return lower48.translate(); - var k = lower48.scale(), x = +_[0], y = +_[1]; - - lower48Point = lower48 - .translate(_) - .clipExtent([[x - 0.455 * k, y - 0.238 * k], [x + 0.455 * k, y + 0.238 * k]]) - .stream(pointStream); - - alaskaPoint = alaska - .translate([x - 0.307 * k, y + 0.201 * k]) - .clipExtent([[x - 0.425 * k + epsilon$2, y + 0.120 * k + epsilon$2], [x - 0.214 * k - epsilon$2, y + 0.234 * k - epsilon$2]]) - .stream(pointStream); - - hawaiiPoint = hawaii - .translate([x - 0.205 * k, y + 0.212 * k]) - .clipExtent([[x - 0.214 * k + epsilon$2, y + 0.166 * k + epsilon$2], [x - 0.115 * k - epsilon$2, y + 0.234 * k - epsilon$2]]) - .stream(pointStream); - - return reset(); - }; - - albersUsa.fitExtent = function(extent, object) { - return fitExtent(albersUsa, extent, object); - }; - - albersUsa.fitSize = function(size, object) { - return fitSize(albersUsa, size, object); - }; - - albersUsa.fitWidth = function(width, object) { - return fitWidth(albersUsa, width, object); - }; - - albersUsa.fitHeight = function(height, object) { - return fitHeight(albersUsa, height, object); - }; - - function reset() { - cache = cacheStream = null; - return albersUsa; - } - - return albersUsa.scale(1070); - } - - function azimuthalRaw(scale) { - return function(x, y) { - var cx = cos$1(x), - cy = cos$1(y), - k = scale(cx * cy); - return [ - k * cy * sin$1(x), - k * sin$1(y) - ]; - } - } - - function azimuthalInvert(angle) { - return function(x, y) { - var z = sqrt(x * x + y * y), - c = angle(z), - sc = sin$1(c), - cc = cos$1(c); - return [ - atan2(x * sc, z * cc), - asin(z && y * sc / z) - ]; - } - } - - var azimuthalEqualAreaRaw = azimuthalRaw(function(cxcy) { - return sqrt(2 / (1 + cxcy)); - }); - - azimuthalEqualAreaRaw.invert = azimuthalInvert(function(z) { - return 2 * asin(z / 2); - }); - - function azimuthalEqualArea() { - return projection(azimuthalEqualAreaRaw) - .scale(124.75) - .clipAngle(180 - 1e-3); - } - - var azimuthalEquidistantRaw = azimuthalRaw(function(c) { - return (c = acos(c)) && c / sin$1(c); - }); - - azimuthalEquidistantRaw.invert = azimuthalInvert(function(z) { - return z; - }); - - function azimuthalEquidistant() { - return projection(azimuthalEquidistantRaw) - .scale(79.4188) - .clipAngle(180 - 1e-3); - } - - function mercatorRaw(lambda, phi) { - return [lambda, log(tan((halfPi$2 + phi) / 2))]; - } - - mercatorRaw.invert = function(x, y) { - return [x, 2 * atan(exp(y)) - halfPi$2]; - }; - - function mercator() { - return mercatorProjection(mercatorRaw) - .scale(961 / tau$3); - } - - function mercatorProjection(project) { - var m = projection(project), - center = m.center, - scale = m.scale, - translate = m.translate, - clipExtent = m.clipExtent, - x0 = null, y0, x1, y1; // clip extent - - m.scale = function(_) { - return arguments.length ? (scale(_), reclip()) : scale(); - }; - - m.translate = function(_) { - return arguments.length ? (translate(_), reclip()) : translate(); - }; - - m.center = function(_) { - return arguments.length ? (center(_), reclip()) : center(); - }; - - m.clipExtent = function(_) { - return arguments.length ? ((_ == null ? x0 = y0 = x1 = y1 = null : (x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1])), reclip()) : x0 == null ? null : [[x0, y0], [x1, y1]]; - }; - - function reclip() { - var k = pi$3 * scale(), - t = m(rotation(m.rotate()).invert([0, 0])); - return clipExtent(x0 == null - ? [[t[0] - k, t[1] - k], [t[0] + k, t[1] + k]] : project === mercatorRaw - ? [[Math.max(t[0] - k, x0), y0], [Math.min(t[0] + k, x1), y1]] - : [[x0, Math.max(t[1] - k, y0)], [x1, Math.min(t[1] + k, y1)]]); - } - - return reclip(); - } - - function tany(y) { - return tan((halfPi$2 + y) / 2); - } - - function conicConformalRaw(y0, y1) { - var cy0 = cos$1(y0), - n = y0 === y1 ? sin$1(y0) : log(cy0 / cos$1(y1)) / log(tany(y1) / tany(y0)), - f = cy0 * pow(tany(y0), n) / n; - - if (!n) return mercatorRaw; - - function project(x, y) { - if (f > 0) { if (y < -halfPi$2 + epsilon$2) y = -halfPi$2 + epsilon$2; } - else { if (y > halfPi$2 - epsilon$2) y = halfPi$2 - epsilon$2; } - var r = f / pow(tany(y), n); - return [r * sin$1(n * x), f - r * cos$1(n * x)]; - } - - project.invert = function(x, y) { - var fy = f - y, r = sign(n) * sqrt(x * x + fy * fy), - l = atan2(x, abs(fy)) * sign(fy); - if (fy * n < 0) - l -= pi$3 * sign(x) * sign(fy); - return [l / n, 2 * atan(pow(f / r, 1 / n)) - halfPi$2]; - }; - - return project; - } - - function conicConformal() { - return conicProjection(conicConformalRaw) - .scale(109.5) - .parallels([30, 30]); - } - - function equirectangularRaw(lambda, phi) { - return [lambda, phi]; - } - - equirectangularRaw.invert = equirectangularRaw; - - function equirectangular() { - return projection(equirectangularRaw) - .scale(152.63); - } - - function conicEquidistantRaw(y0, y1) { - var cy0 = cos$1(y0), - n = y0 === y1 ? sin$1(y0) : (cy0 - cos$1(y1)) / (y1 - y0), - g = cy0 / n + y0; - - if (abs(n) < epsilon$2) return equirectangularRaw; - - function project(x, y) { - var gy = g - y, nx = n * x; - return [gy * sin$1(nx), g - gy * cos$1(nx)]; - } - - project.invert = function(x, y) { - var gy = g - y, - l = atan2(x, abs(gy)) * sign(gy); - if (gy * n < 0) - l -= pi$3 * sign(x) * sign(gy); - return [l / n, g - sign(n) * sqrt(x * x + gy * gy)]; - }; - - return project; - } - - function conicEquidistant() { - return conicProjection(conicEquidistantRaw) - .scale(131.154) - .center([0, 13.9389]); - } - - var A1 = 1.340264, - A2 = -0.081106, - A3 = 0.000893, - A4 = 0.003796, - M = sqrt(3) / 2, - iterations = 12; - - function equalEarthRaw(lambda, phi) { - var l = asin(M * sin$1(phi)), l2 = l * l, l6 = l2 * l2 * l2; - return [ - lambda * cos$1(l) / (M * (A1 + 3 * A2 * l2 + l6 * (7 * A3 + 9 * A4 * l2))), - l * (A1 + A2 * l2 + l6 * (A3 + A4 * l2)) - ]; - } - - equalEarthRaw.invert = function(x, y) { - var l = y, l2 = l * l, l6 = l2 * l2 * l2; - for (var i = 0, delta, fy, fpy; i < iterations; ++i) { - fy = l * (A1 + A2 * l2 + l6 * (A3 + A4 * l2)) - y; - fpy = A1 + 3 * A2 * l2 + l6 * (7 * A3 + 9 * A4 * l2); - l -= delta = fy / fpy, l2 = l * l, l6 = l2 * l2 * l2; - if (abs(delta) < epsilon2$1) break; - } - return [ - M * x * (A1 + 3 * A2 * l2 + l6 * (7 * A3 + 9 * A4 * l2)) / cos$1(l), - asin(sin$1(l) / M) - ]; - }; - - function equalEarth() { - return projection(equalEarthRaw) - .scale(177.158); - } - - function gnomonicRaw(x, y) { - var cy = cos$1(y), k = cos$1(x) * cy; - return [cy * sin$1(x) / k, sin$1(y) / k]; - } - - gnomonicRaw.invert = azimuthalInvert(atan); - - function gnomonic() { - return projection(gnomonicRaw) - .scale(144.049) - .clipAngle(60); - } - - function identity$5() { - var k = 1, tx = 0, ty = 0, sx = 1, sy = 1, // scale, translate and reflect - alpha = 0, ca, sa, // angle - x0 = null, y0, x1, y1, // clip extent - kx = 1, ky = 1, - transform = transformer({ - point: function(x, y) { - var p = projection([x, y]); - this.stream.point(p[0], p[1]); - } - }), - postclip = identity$4, - cache, - cacheStream; - - function reset() { - kx = k * sx; - ky = k * sy; - cache = cacheStream = null; - return projection; - } - - function projection (p) { - var x = p[0] * kx, y = p[1] * ky; - if (alpha) { - var t = y * ca - x * sa; - x = x * ca + y * sa; - y = t; - } - return [x + tx, y + ty]; - } - projection.invert = function(p) { - var x = p[0] - tx, y = p[1] - ty; - if (alpha) { - var t = y * ca + x * sa; - x = x * ca - y * sa; - y = t; - } - return [x / kx, y / ky]; - }; - projection.stream = function(stream) { - return cache && cacheStream === stream ? cache : cache = transform(postclip(cacheStream = stream)); - }; - projection.postclip = function(_) { - return arguments.length ? (postclip = _, x0 = y0 = x1 = y1 = null, reset()) : postclip; - }; - projection.clipExtent = function(_) { - return arguments.length ? (postclip = _ == null ? (x0 = y0 = x1 = y1 = null, identity$4) : clipRectangle(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]), reset()) : x0 == null ? null : [[x0, y0], [x1, y1]]; - }; - projection.scale = function(_) { - return arguments.length ? (k = +_, reset()) : k; - }; - projection.translate = function(_) { - return arguments.length ? (tx = +_[0], ty = +_[1], reset()) : [tx, ty]; - }; - projection.angle = function(_) { - return arguments.length ? (alpha = _ % 360 * radians, sa = sin$1(alpha), ca = cos$1(alpha), reset()) : alpha * degrees$1; - }; - projection.reflectX = function(_) { - return arguments.length ? (sx = _ ? -1 : 1, reset()) : sx < 0; - }; - projection.reflectY = function(_) { - return arguments.length ? (sy = _ ? -1 : 1, reset()) : sy < 0; - }; - projection.fitExtent = function(extent, object) { - return fitExtent(projection, extent, object); - }; - projection.fitSize = function(size, object) { - return fitSize(projection, size, object); - }; - projection.fitWidth = function(width, object) { - return fitWidth(projection, width, object); - }; - projection.fitHeight = function(height, object) { - return fitHeight(projection, height, object); - }; - - return projection; - } - - function naturalEarth1Raw(lambda, phi) { - var phi2 = phi * phi, phi4 = phi2 * phi2; - return [ - lambda * (0.8707 - 0.131979 * phi2 + phi4 * (-0.013791 + phi4 * (0.003971 * phi2 - 0.001529 * phi4))), - phi * (1.007226 + phi2 * (0.015085 + phi4 * (-0.044475 + 0.028874 * phi2 - 0.005916 * phi4))) - ]; - } - - naturalEarth1Raw.invert = function(x, y) { - var phi = y, i = 25, delta; - do { - var phi2 = phi * phi, phi4 = phi2 * phi2; - phi -= delta = (phi * (1.007226 + phi2 * (0.015085 + phi4 * (-0.044475 + 0.028874 * phi2 - 0.005916 * phi4))) - y) / - (1.007226 + phi2 * (0.015085 * 3 + phi4 * (-0.044475 * 7 + 0.028874 * 9 * phi2 - 0.005916 * 11 * phi4))); - } while (abs(delta) > epsilon$2 && --i > 0); - return [ - x / (0.8707 + (phi2 = phi * phi) * (-0.131979 + phi2 * (-0.013791 + phi2 * phi2 * phi2 * (0.003971 - 0.001529 * phi2)))), - phi - ]; - }; - - function naturalEarth1() { - return projection(naturalEarth1Raw) - .scale(175.295); - } - - function orthographicRaw(x, y) { - return [cos$1(y) * sin$1(x), sin$1(y)]; - } - - orthographicRaw.invert = azimuthalInvert(asin); - - function orthographic() { - return projection(orthographicRaw) - .scale(249.5) - .clipAngle(90 + epsilon$2); - } - - function stereographicRaw(x, y) { - var cy = cos$1(y), k = 1 + cos$1(x) * cy; - return [cy * sin$1(x) / k, sin$1(y) / k]; - } - - stereographicRaw.invert = azimuthalInvert(function(z) { - return 2 * atan(z); - }); - - function stereographic() { - return projection(stereographicRaw) - .scale(250) - .clipAngle(142); - } - - function transverseMercatorRaw(lambda, phi) { - return [log(tan((halfPi$2 + phi) / 2)), -lambda]; - } - - transverseMercatorRaw.invert = function(x, y) { - return [-y, 2 * atan(exp(x)) - halfPi$2]; - }; - - function transverseMercator() { - var m = mercatorProjection(transverseMercatorRaw), - center = m.center, - rotate = m.rotate; - - m.center = function(_) { - return arguments.length ? center([-_[1], _[0]]) : (_ = center(), [_[1], -_[0]]); - }; - - m.rotate = function(_) { - return arguments.length ? rotate([_[0], _[1], _.length > 2 ? _[2] + 90 : 90]) : (_ = rotate(), [_[0], _[1], _[2] - 90]); - }; - - return rotate([0, 0, 90]) - .scale(159.155); - } - - function defaultSeparation(a, b) { - return a.parent === b.parent ? 1 : 2; - } - - function meanX(children) { - return children.reduce(meanXReduce, 0) / children.length; - } - - function meanXReduce(x, c) { - return x + c.x; - } - - function maxY(children) { - return 1 + children.reduce(maxYReduce, 0); - } - - function maxYReduce(y, c) { - return Math.max(y, c.y); - } - - function leafLeft(node) { - var children; - while (children = node.children) node = children[0]; - return node; - } - - function leafRight(node) { - var children; - while (children = node.children) node = children[children.length - 1]; - return node; - } - - function cluster() { - var separation = defaultSeparation, - dx = 1, - dy = 1, - nodeSize = false; - - function cluster(root) { - var previousNode, - x = 0; - - // First walk, computing the initial x & y values. - root.eachAfter(function(node) { - var children = node.children; - if (children) { - node.x = meanX(children); - node.y = maxY(children); - } else { - node.x = previousNode ? x += separation(node, previousNode) : 0; - node.y = 0; - previousNode = node; - } - }); - - var left = leafLeft(root), - right = leafRight(root), - x0 = left.x - separation(left, right) / 2, - x1 = right.x + separation(right, left) / 2; - - // Second walk, normalizing x & y to the desired size. - return root.eachAfter(nodeSize ? function(node) { - node.x = (node.x - root.x) * dx; - node.y = (root.y - node.y) * dy; - } : function(node) { - node.x = (node.x - x0) / (x1 - x0) * dx; - node.y = (1 - (root.y ? node.y / root.y : 1)) * dy; - }); - } - - cluster.separation = function(x) { - return arguments.length ? (separation = x, cluster) : separation; - }; - - cluster.size = function(x) { - return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], cluster) : (nodeSize ? null : [dx, dy]); - }; - - cluster.nodeSize = function(x) { - return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], cluster) : (nodeSize ? [dx, dy] : null); - }; - - return cluster; - } - - function count(node) { - var sum = 0, - children = node.children, - i = children && children.length; - if (!i) sum = 1; - else while (--i >= 0) sum += children[i].value; - node.value = sum; - } - - function node_count() { - return this.eachAfter(count); - } - - function node_each(callback) { - var node = this, current, next = [node], children, i, n; - do { - current = next.reverse(), next = []; - while (node = current.pop()) { - callback(node), children = node.children; - if (children) for (i = 0, n = children.length; i < n; ++i) { - next.push(children[i]); - } - } - } while (next.length); - return this; - } - - function node_eachBefore(callback) { - var node = this, nodes = [node], children, i; - while (node = nodes.pop()) { - callback(node), children = node.children; - if (children) for (i = children.length - 1; i >= 0; --i) { - nodes.push(children[i]); - } - } - return this; - } - - function node_eachAfter(callback) { - var node = this, nodes = [node], next = [], children, i, n; - while (node = nodes.pop()) { - next.push(node), children = node.children; - if (children) for (i = 0, n = children.length; i < n; ++i) { - nodes.push(children[i]); - } - } - while (node = next.pop()) { - callback(node); - } - return this; - } - - function node_sum(value) { - return this.eachAfter(function(node) { - var sum = +value(node.data) || 0, - children = node.children, - i = children && children.length; - while (--i >= 0) sum += children[i].value; - node.value = sum; - }); - } - - function node_sort(compare) { - return this.eachBefore(function(node) { - if (node.children) { - node.children.sort(compare); - } - }); - } - - function node_path(end) { - var start = this, - ancestor = leastCommonAncestor(start, end), - nodes = [start]; - while (start !== ancestor) { - start = start.parent; - nodes.push(start); - } - var k = nodes.length; - while (end !== ancestor) { - nodes.splice(k, 0, end); - end = end.parent; - } - return nodes; - } - - function leastCommonAncestor(a, b) { - if (a === b) return a; - var aNodes = a.ancestors(), - bNodes = b.ancestors(), - c = null; - a = aNodes.pop(); - b = bNodes.pop(); - while (a === b) { - c = a; - a = aNodes.pop(); - b = bNodes.pop(); - } - return c; - } - - function node_ancestors() { - var node = this, nodes = [node]; - while (node = node.parent) { - nodes.push(node); - } - return nodes; - } - - function node_descendants() { - var nodes = []; - this.each(function(node) { - nodes.push(node); - }); - return nodes; - } - - function node_leaves() { - var leaves = []; - this.eachBefore(function(node) { - if (!node.children) { - leaves.push(node); - } - }); - return leaves; - } - - function node_links() { - var root = this, links = []; - root.each(function(node) { - if (node !== root) { // Don’t include the root’s parent, if any. - links.push({source: node.parent, target: node}); - } - }); - return links; - } - - function hierarchy(data, children) { - var root = new Node(data), - valued = +data.value && (root.value = data.value), - node, - nodes = [root], - child, - childs, - i, - n; - - if (children == null) children = defaultChildren; - - while (node = nodes.pop()) { - if (valued) node.value = +node.data.value; - if ((childs = children(node.data)) && (n = childs.length)) { - node.children = new Array(n); - for (i = n - 1; i >= 0; --i) { - nodes.push(child = node.children[i] = new Node(childs[i])); - child.parent = node; - child.depth = node.depth + 1; - } - } - } - - return root.eachBefore(computeHeight); - } - - function node_copy() { - return hierarchy(this).eachBefore(copyData); - } - - function defaultChildren(d) { - return d.children; - } - - function copyData(node) { - node.data = node.data.data; - } - - function computeHeight(node) { - var height = 0; - do node.height = height; - while ((node = node.parent) && (node.height < ++height)); - } - - function Node(data) { - this.data = data; - this.depth = - this.height = 0; - this.parent = null; - } - - Node.prototype = hierarchy.prototype = { - constructor: Node, - count: node_count, - each: node_each, - eachAfter: node_eachAfter, - eachBefore: node_eachBefore, - sum: node_sum, - sort: node_sort, - path: node_path, - ancestors: node_ancestors, - descendants: node_descendants, - leaves: node_leaves, - links: node_links, - copy: node_copy - }; - - var slice$4 = Array.prototype.slice; - - function shuffle$1(array) { - var m = array.length, - t, - i; - - while (m) { - i = Math.random() * m-- | 0; - t = array[m]; - array[m] = array[i]; - array[i] = t; - } - - return array; - } - - function enclose(circles) { - var i = 0, n = (circles = shuffle$1(slice$4.call(circles))).length, B = [], p, e; - - while (i < n) { - p = circles[i]; - if (e && enclosesWeak(e, p)) ++i; - else e = encloseBasis(B = extendBasis(B, p)), i = 0; - } - - return e; - } - - function extendBasis(B, p) { - var i, j; - - if (enclosesWeakAll(p, B)) return [p]; - - // If we get here then B must have at least one element. - for (i = 0; i < B.length; ++i) { - if (enclosesNot(p, B[i]) - && enclosesWeakAll(encloseBasis2(B[i], p), B)) { - return [B[i], p]; - } - } - - // If we get here then B must have at least two elements. - for (i = 0; i < B.length - 1; ++i) { - for (j = i + 1; j < B.length; ++j) { - if (enclosesNot(encloseBasis2(B[i], B[j]), p) - && enclosesNot(encloseBasis2(B[i], p), B[j]) - && enclosesNot(encloseBasis2(B[j], p), B[i]) - && enclosesWeakAll(encloseBasis3(B[i], B[j], p), B)) { - return [B[i], B[j], p]; - } - } - } - - // If we get here then something is very wrong. - throw new Error; - } - - function enclosesNot(a, b) { - var dr = a.r - b.r, dx = b.x - a.x, dy = b.y - a.y; - return dr < 0 || dr * dr < dx * dx + dy * dy; - } - - function enclosesWeak(a, b) { - var dr = a.r - b.r + 1e-6, dx = b.x - a.x, dy = b.y - a.y; - return dr > 0 && dr * dr > dx * dx + dy * dy; - } - - function enclosesWeakAll(a, B) { - for (var i = 0; i < B.length; ++i) { - if (!enclosesWeak(a, B[i])) { - return false; - } - } - return true; - } - - function encloseBasis(B) { - switch (B.length) { - case 1: return encloseBasis1(B[0]); - case 2: return encloseBasis2(B[0], B[1]); - case 3: return encloseBasis3(B[0], B[1], B[2]); - } - } - - function encloseBasis1(a) { - return { - x: a.x, - y: a.y, - r: a.r - }; - } - - function encloseBasis2(a, b) { - var x1 = a.x, y1 = a.y, r1 = a.r, - x2 = b.x, y2 = b.y, r2 = b.r, - x21 = x2 - x1, y21 = y2 - y1, r21 = r2 - r1, - l = Math.sqrt(x21 * x21 + y21 * y21); - return { - x: (x1 + x2 + x21 / l * r21) / 2, - y: (y1 + y2 + y21 / l * r21) / 2, - r: (l + r1 + r2) / 2 - }; - } - - function encloseBasis3(a, b, c) { - var x1 = a.x, y1 = a.y, r1 = a.r, - x2 = b.x, y2 = b.y, r2 = b.r, - x3 = c.x, y3 = c.y, r3 = c.r, - a2 = x1 - x2, - a3 = x1 - x3, - b2 = y1 - y2, - b3 = y1 - y3, - c2 = r2 - r1, - c3 = r3 - r1, - d1 = x1 * x1 + y1 * y1 - r1 * r1, - d2 = d1 - x2 * x2 - y2 * y2 + r2 * r2, - d3 = d1 - x3 * x3 - y3 * y3 + r3 * r3, - ab = a3 * b2 - a2 * b3, - xa = (b2 * d3 - b3 * d2) / (ab * 2) - x1, - xb = (b3 * c2 - b2 * c3) / ab, - ya = (a3 * d2 - a2 * d3) / (ab * 2) - y1, - yb = (a2 * c3 - a3 * c2) / ab, - A = xb * xb + yb * yb - 1, - B = 2 * (r1 + xa * xb + ya * yb), - C = xa * xa + ya * ya - r1 * r1, - r = -(A ? (B + Math.sqrt(B * B - 4 * A * C)) / (2 * A) : C / B); - return { - x: x1 + xa + xb * r, - y: y1 + ya + yb * r, - r: r - }; - } - - function place(b, a, c) { - var dx = b.x - a.x, x, a2, - dy = b.y - a.y, y, b2, - d2 = dx * dx + dy * dy; - if (d2) { - a2 = a.r + c.r, a2 *= a2; - b2 = b.r + c.r, b2 *= b2; - if (a2 > b2) { - x = (d2 + b2 - a2) / (2 * d2); - y = Math.sqrt(Math.max(0, b2 / d2 - x * x)); - c.x = b.x - x * dx - y * dy; - c.y = b.y - x * dy + y * dx; - } else { - x = (d2 + a2 - b2) / (2 * d2); - y = Math.sqrt(Math.max(0, a2 / d2 - x * x)); - c.x = a.x + x * dx - y * dy; - c.y = a.y + x * dy + y * dx; - } - } else { - c.x = a.x + c.r; - c.y = a.y; - } - } - - function intersects(a, b) { - var dr = a.r + b.r - 1e-6, dx = b.x - a.x, dy = b.y - a.y; - return dr > 0 && dr * dr > dx * dx + dy * dy; - } - - function score(node) { - var a = node._, - b = node.next._, - ab = a.r + b.r, - dx = (a.x * b.r + b.x * a.r) / ab, - dy = (a.y * b.r + b.y * a.r) / ab; - return dx * dx + dy * dy; - } - - function Node$1(circle) { - this._ = circle; - this.next = null; - this.previous = null; - } - - function packEnclose(circles) { - if (!(n = circles.length)) return 0; - - var a, b, c, n, aa, ca, i, j, k, sj, sk; - - // Place the first circle. - a = circles[0], a.x = 0, a.y = 0; - if (!(n > 1)) return a.r; - - // Place the second circle. - b = circles[1], a.x = -b.r, b.x = a.r, b.y = 0; - if (!(n > 2)) return a.r + b.r; - - // Place the third circle. - place(b, a, c = circles[2]); - - // Initialize the front-chain using the first three circles a, b and c. - a = new Node$1(a), b = new Node$1(b), c = new Node$1(c); - a.next = c.previous = b; - b.next = a.previous = c; - c.next = b.previous = a; - - // Attempt to place each remaining circle… - pack: for (i = 3; i < n; ++i) { - place(a._, b._, c = circles[i]), c = new Node$1(c); - - // Find the closest intersecting circle on the front-chain, if any. - // “Closeness” is determined by linear distance along the front-chain. - // “Ahead” or “behind” is likewise determined by linear distance. - j = b.next, k = a.previous, sj = b._.r, sk = a._.r; - do { - if (sj <= sk) { - if (intersects(j._, c._)) { - b = j, a.next = b, b.previous = a, --i; - continue pack; - } - sj += j._.r, j = j.next; - } else { - if (intersects(k._, c._)) { - a = k, a.next = b, b.previous = a, --i; - continue pack; - } - sk += k._.r, k = k.previous; - } - } while (j !== k.next); - - // Success! Insert the new circle c between a and b. - c.previous = a, c.next = b, a.next = b.previous = b = c; - - // Compute the new closest circle pair to the centroid. - aa = score(a); - while ((c = c.next) !== b) { - if ((ca = score(c)) < aa) { - a = c, aa = ca; - } - } - b = a.next; - } - - // Compute the enclosing circle of the front chain. - a = [b._], c = b; while ((c = c.next) !== b) a.push(c._); c = enclose(a); - - // Translate the circles to put the enclosing circle around the origin. - for (i = 0; i < n; ++i) a = circles[i], a.x -= c.x, a.y -= c.y; - - return c.r; - } - - function siblings(circles) { - packEnclose(circles); - return circles; - } - - function optional(f) { - return f == null ? null : required(f); - } - - function required(f) { - if (typeof f !== "function") throw new Error; - return f; - } - - function constantZero() { - return 0; - } - - function constant$9(x) { - return function() { - return x; - }; - } - - function defaultRadius$1(d) { - return Math.sqrt(d.value); - } - - function index$2() { - var radius = null, - dx = 1, - dy = 1, - padding = constantZero; - - function pack(root) { - root.x = dx / 2, root.y = dy / 2; - if (radius) { - root.eachBefore(radiusLeaf(radius)) - .eachAfter(packChildren(padding, 0.5)) - .eachBefore(translateChild(1)); - } else { - root.eachBefore(radiusLeaf(defaultRadius$1)) - .eachAfter(packChildren(constantZero, 1)) - .eachAfter(packChildren(padding, root.r / Math.min(dx, dy))) - .eachBefore(translateChild(Math.min(dx, dy) / (2 * root.r))); - } - return root; - } - - pack.radius = function(x) { - return arguments.length ? (radius = optional(x), pack) : radius; - }; - - pack.size = function(x) { - return arguments.length ? (dx = +x[0], dy = +x[1], pack) : [dx, dy]; - }; - - pack.padding = function(x) { - return arguments.length ? (padding = typeof x === "function" ? x : constant$9(+x), pack) : padding; - }; - - return pack; - } - - function radiusLeaf(radius) { - return function(node) { - if (!node.children) { - node.r = Math.max(0, +radius(node) || 0); - } - }; - } - - function packChildren(padding, k) { - return function(node) { - if (children = node.children) { - var children, - i, - n = children.length, - r = padding(node) * k || 0, - e; - - if (r) for (i = 0; i < n; ++i) children[i].r += r; - e = packEnclose(children); - if (r) for (i = 0; i < n; ++i) children[i].r -= r; - node.r = e + r; - } - }; - } - - function translateChild(k) { - return function(node) { - var parent = node.parent; - node.r *= k; - if (parent) { - node.x = parent.x + k * node.x; - node.y = parent.y + k * node.y; - } - }; - } - - function roundNode(node) { - node.x0 = Math.round(node.x0); - node.y0 = Math.round(node.y0); - node.x1 = Math.round(node.x1); - node.y1 = Math.round(node.y1); - } - - function treemapDice(parent, x0, y0, x1, y1) { - var nodes = parent.children, - node, - i = -1, - n = nodes.length, - k = parent.value && (x1 - x0) / parent.value; - - while (++i < n) { - node = nodes[i], node.y0 = y0, node.y1 = y1; - node.x0 = x0, node.x1 = x0 += node.value * k; - } - } - - function partition() { - var dx = 1, - dy = 1, - padding = 0, - round = false; - - function partition(root) { - var n = root.height + 1; - root.x0 = - root.y0 = padding; - root.x1 = dx; - root.y1 = dy / n; - root.eachBefore(positionNode(dy, n)); - if (round) root.eachBefore(roundNode); - return root; - } - - function positionNode(dy, n) { - return function(node) { - if (node.children) { - treemapDice(node, node.x0, dy * (node.depth + 1) / n, node.x1, dy * (node.depth + 2) / n); - } - var x0 = node.x0, - y0 = node.y0, - x1 = node.x1 - padding, - y1 = node.y1 - padding; - if (x1 < x0) x0 = x1 = (x0 + x1) / 2; - if (y1 < y0) y0 = y1 = (y0 + y1) / 2; - node.x0 = x0; - node.y0 = y0; - node.x1 = x1; - node.y1 = y1; - }; - } - - partition.round = function(x) { - return arguments.length ? (round = !!x, partition) : round; - }; - - partition.size = function(x) { - return arguments.length ? (dx = +x[0], dy = +x[1], partition) : [dx, dy]; - }; - - partition.padding = function(x) { - return arguments.length ? (padding = +x, partition) : padding; - }; - - return partition; - } - - var keyPrefix$1 = "$", // Protect against keys like “__proto__”. - preroot = {depth: -1}, - ambiguous = {}; - - function defaultId(d) { - return d.id; - } - - function defaultParentId(d) { - return d.parentId; - } - - function stratify() { - var id = defaultId, - parentId = defaultParentId; - - function stratify(data) { - var d, - i, - n = data.length, - root, - parent, - node, - nodes = new Array(n), - nodeId, - nodeKey, - nodeByKey = {}; - - for (i = 0; i < n; ++i) { - d = data[i], node = nodes[i] = new Node(d); - if ((nodeId = id(d, i, data)) != null && (nodeId += "")) { - nodeKey = keyPrefix$1 + (node.id = nodeId); - nodeByKey[nodeKey] = nodeKey in nodeByKey ? ambiguous : node; - } - } - - for (i = 0; i < n; ++i) { - node = nodes[i], nodeId = parentId(data[i], i, data); - if (nodeId == null || !(nodeId += "")) { - if (root) throw new Error("multiple roots"); - root = node; - } else { - parent = nodeByKey[keyPrefix$1 + nodeId]; - if (!parent) throw new Error("missing: " + nodeId); - if (parent === ambiguous) throw new Error("ambiguous: " + nodeId); - if (parent.children) parent.children.push(node); - else parent.children = [node]; - node.parent = parent; - } - } - - if (!root) throw new Error("no root"); - root.parent = preroot; - root.eachBefore(function(node) { node.depth = node.parent.depth + 1; --n; }).eachBefore(computeHeight); - root.parent = null; - if (n > 0) throw new Error("cycle"); - - return root; - } - - stratify.id = function(x) { - return arguments.length ? (id = required(x), stratify) : id; - }; - - stratify.parentId = function(x) { - return arguments.length ? (parentId = required(x), stratify) : parentId; - }; - - return stratify; - } - - function defaultSeparation$1(a, b) { - return a.parent === b.parent ? 1 : 2; - } - - // function radialSeparation(a, b) { - // return (a.parent === b.parent ? 1 : 2) / a.depth; - // } - - // This function is used to traverse the left contour of a subtree (or - // subforest). It returns the successor of v on this contour. This successor is - // either given by the leftmost child of v or by the thread of v. The function - // returns null if and only if v is on the highest level of its subtree. - function nextLeft(v) { - var children = v.children; - return children ? children[0] : v.t; - } - - // This function works analogously to nextLeft. - function nextRight(v) { - var children = v.children; - return children ? children[children.length - 1] : v.t; - } - - // Shifts the current subtree rooted at w+. This is done by increasing - // prelim(w+) and mod(w+) by shift. - function moveSubtree(wm, wp, shift) { - var change = shift / (wp.i - wm.i); - wp.c -= change; - wp.s += shift; - wm.c += change; - wp.z += shift; - wp.m += shift; - } - - // All other shifts, applied to the smaller subtrees between w- and w+, are - // performed by this function. To prepare the shifts, we have to adjust - // change(w+), shift(w+), and change(w-). - function executeShifts(v) { - var shift = 0, - change = 0, - children = v.children, - i = children.length, - w; - while (--i >= 0) { - w = children[i]; - w.z += shift; - w.m += shift; - shift += w.s + (change += w.c); - } - } - - // If vi-’s ancestor is a sibling of v, returns vi-’s ancestor. Otherwise, - // returns the specified (default) ancestor. - function nextAncestor(vim, v, ancestor) { - return vim.a.parent === v.parent ? vim.a : ancestor; - } - - function TreeNode(node, i) { - this._ = node; - this.parent = null; - this.children = null; - this.A = null; // default ancestor - this.a = this; // ancestor - this.z = 0; // prelim - this.m = 0; // mod - this.c = 0; // change - this.s = 0; // shift - this.t = null; // thread - this.i = i; // number - } - - TreeNode.prototype = Object.create(Node.prototype); - - function treeRoot(root) { - var tree = new TreeNode(root, 0), - node, - nodes = [tree], - child, - children, - i, - n; - - while (node = nodes.pop()) { - if (children = node._.children) { - node.children = new Array(n = children.length); - for (i = n - 1; i >= 0; --i) { - nodes.push(child = node.children[i] = new TreeNode(children[i], i)); - child.parent = node; - } - } - } - - (tree.parent = new TreeNode(null, 0)).children = [tree]; - return tree; - } - - // Node-link tree diagram using the Reingold-Tilford "tidy" algorithm - function tree() { - var separation = defaultSeparation$1, - dx = 1, - dy = 1, - nodeSize = null; - - function tree(root) { - var t = treeRoot(root); - - // Compute the layout using Buchheim et al.’s algorithm. - t.eachAfter(firstWalk), t.parent.m = -t.z; - t.eachBefore(secondWalk); - - // If a fixed node size is specified, scale x and y. - if (nodeSize) root.eachBefore(sizeNode); - - // If a fixed tree size is specified, scale x and y based on the extent. - // Compute the left-most, right-most, and depth-most nodes for extents. - else { - var left = root, - right = root, - bottom = root; - root.eachBefore(function(node) { - if (node.x < left.x) left = node; - if (node.x > right.x) right = node; - if (node.depth > bottom.depth) bottom = node; - }); - var s = left === right ? 1 : separation(left, right) / 2, - tx = s - left.x, - kx = dx / (right.x + s + tx), - ky = dy / (bottom.depth || 1); - root.eachBefore(function(node) { - node.x = (node.x + tx) * kx; - node.y = node.depth * ky; - }); - } - - return root; - } - - // Computes a preliminary x-coordinate for v. Before that, FIRST WALK is - // applied recursively to the children of v, as well as the function - // APPORTION. After spacing out the children by calling EXECUTE SHIFTS, the - // node v is placed to the midpoint of its outermost children. - function firstWalk(v) { - var children = v.children, - siblings = v.parent.children, - w = v.i ? siblings[v.i - 1] : null; - if (children) { - executeShifts(v); - var midpoint = (children[0].z + children[children.length - 1].z) / 2; - if (w) { - v.z = w.z + separation(v._, w._); - v.m = v.z - midpoint; - } else { - v.z = midpoint; - } - } else if (w) { - v.z = w.z + separation(v._, w._); - } - v.parent.A = apportion(v, w, v.parent.A || siblings[0]); - } - - // Computes all real x-coordinates by summing up the modifiers recursively. - function secondWalk(v) { - v._.x = v.z + v.parent.m; - v.m += v.parent.m; - } - - // The core of the algorithm. Here, a new subtree is combined with the - // previous subtrees. Threads are used to traverse the inside and outside - // contours of the left and right subtree up to the highest common level. The - // vertices used for the traversals are vi+, vi-, vo-, and vo+, where the - // superscript o means outside and i means inside, the subscript - means left - // subtree and + means right subtree. For summing up the modifiers along the - // contour, we use respective variables si+, si-, so-, and so+. Whenever two - // nodes of the inside contours conflict, we compute the left one of the - // greatest uncommon ancestors using the function ANCESTOR and call MOVE - // SUBTREE to shift the subtree and prepare the shifts of smaller subtrees. - // Finally, we add a new thread (if necessary). - function apportion(v, w, ancestor) { - if (w) { - var vip = v, - vop = v, - vim = w, - vom = vip.parent.children[0], - sip = vip.m, - sop = vop.m, - sim = vim.m, - som = vom.m, - shift; - while (vim = nextRight(vim), vip = nextLeft(vip), vim && vip) { - vom = nextLeft(vom); - vop = nextRight(vop); - vop.a = v; - shift = vim.z + sim - vip.z - sip + separation(vim._, vip._); - if (shift > 0) { - moveSubtree(nextAncestor(vim, v, ancestor), v, shift); - sip += shift; - sop += shift; - } - sim += vim.m; - sip += vip.m; - som += vom.m; - sop += vop.m; - } - if (vim && !nextRight(vop)) { - vop.t = vim; - vop.m += sim - sop; - } - if (vip && !nextLeft(vom)) { - vom.t = vip; - vom.m += sip - som; - ancestor = v; - } - } - return ancestor; - } - - function sizeNode(node) { - node.x *= dx; - node.y = node.depth * dy; - } - - tree.separation = function(x) { - return arguments.length ? (separation = x, tree) : separation; - }; - - tree.size = function(x) { - return arguments.length ? (nodeSize = false, dx = +x[0], dy = +x[1], tree) : (nodeSize ? null : [dx, dy]); - }; - - tree.nodeSize = function(x) { - return arguments.length ? (nodeSize = true, dx = +x[0], dy = +x[1], tree) : (nodeSize ? [dx, dy] : null); - }; - - return tree; - } - - function treemapSlice(parent, x0, y0, x1, y1) { - var nodes = parent.children, - node, - i = -1, - n = nodes.length, - k = parent.value && (y1 - y0) / parent.value; - - while (++i < n) { - node = nodes[i], node.x0 = x0, node.x1 = x1; - node.y0 = y0, node.y1 = y0 += node.value * k; - } - } - - var phi = (1 + Math.sqrt(5)) / 2; - - function squarifyRatio(ratio, parent, x0, y0, x1, y1) { - var rows = [], - nodes = parent.children, - row, - nodeValue, - i0 = 0, - i1 = 0, - n = nodes.length, - dx, dy, - value = parent.value, - sumValue, - minValue, - maxValue, - newRatio, - minRatio, - alpha, - beta; - - while (i0 < n) { - dx = x1 - x0, dy = y1 - y0; - - // Find the next non-empty node. - do sumValue = nodes[i1++].value; while (!sumValue && i1 < n); - minValue = maxValue = sumValue; - alpha = Math.max(dy / dx, dx / dy) / (value * ratio); - beta = sumValue * sumValue * alpha; - minRatio = Math.max(maxValue / beta, beta / minValue); - - // Keep adding nodes while the aspect ratio maintains or improves. - for (; i1 < n; ++i1) { - sumValue += nodeValue = nodes[i1].value; - if (nodeValue < minValue) minValue = nodeValue; - if (nodeValue > maxValue) maxValue = nodeValue; - beta = sumValue * sumValue * alpha; - newRatio = Math.max(maxValue / beta, beta / minValue); - if (newRatio > minRatio) { sumValue -= nodeValue; break; } - minRatio = newRatio; - } - - // Position and record the row orientation. - rows.push(row = {value: sumValue, dice: dx < dy, children: nodes.slice(i0, i1)}); - if (row.dice) treemapDice(row, x0, y0, x1, value ? y0 += dy * sumValue / value : y1); - else treemapSlice(row, x0, y0, value ? x0 += dx * sumValue / value : x1, y1); - value -= sumValue, i0 = i1; - } - - return rows; - } - - var squarify = (function custom(ratio) { - - function squarify(parent, x0, y0, x1, y1) { - squarifyRatio(ratio, parent, x0, y0, x1, y1); - } - - squarify.ratio = function(x) { - return custom((x = +x) > 1 ? x : 1); - }; - - return squarify; - })(phi); - - function index$3() { - var tile = squarify, - round = false, - dx = 1, - dy = 1, - paddingStack = [0], - paddingInner = constantZero, - paddingTop = constantZero, - paddingRight = constantZero, - paddingBottom = constantZero, - paddingLeft = constantZero; - - function treemap(root) { - root.x0 = - root.y0 = 0; - root.x1 = dx; - root.y1 = dy; - root.eachBefore(positionNode); - paddingStack = [0]; - if (round) root.eachBefore(roundNode); - return root; - } - - function positionNode(node) { - var p = paddingStack[node.depth], - x0 = node.x0 + p, - y0 = node.y0 + p, - x1 = node.x1 - p, - y1 = node.y1 - p; - if (x1 < x0) x0 = x1 = (x0 + x1) / 2; - if (y1 < y0) y0 = y1 = (y0 + y1) / 2; - node.x0 = x0; - node.y0 = y0; - node.x1 = x1; - node.y1 = y1; - if (node.children) { - p = paddingStack[node.depth + 1] = paddingInner(node) / 2; - x0 += paddingLeft(node) - p; - y0 += paddingTop(node) - p; - x1 -= paddingRight(node) - p; - y1 -= paddingBottom(node) - p; - if (x1 < x0) x0 = x1 = (x0 + x1) / 2; - if (y1 < y0) y0 = y1 = (y0 + y1) / 2; - tile(node, x0, y0, x1, y1); - } - } - - treemap.round = function(x) { - return arguments.length ? (round = !!x, treemap) : round; - }; - - treemap.size = function(x) { - return arguments.length ? (dx = +x[0], dy = +x[1], treemap) : [dx, dy]; - }; - - treemap.tile = function(x) { - return arguments.length ? (tile = required(x), treemap) : tile; - }; - - treemap.padding = function(x) { - return arguments.length ? treemap.paddingInner(x).paddingOuter(x) : treemap.paddingInner(); - }; - - treemap.paddingInner = function(x) { - return arguments.length ? (paddingInner = typeof x === "function" ? x : constant$9(+x), treemap) : paddingInner; - }; - - treemap.paddingOuter = function(x) { - return arguments.length ? treemap.paddingTop(x).paddingRight(x).paddingBottom(x).paddingLeft(x) : treemap.paddingTop(); - }; - - treemap.paddingTop = function(x) { - return arguments.length ? (paddingTop = typeof x === "function" ? x : constant$9(+x), treemap) : paddingTop; - }; - - treemap.paddingRight = function(x) { - return arguments.length ? (paddingRight = typeof x === "function" ? x : constant$9(+x), treemap) : paddingRight; - }; - - treemap.paddingBottom = function(x) { - return arguments.length ? (paddingBottom = typeof x === "function" ? x : constant$9(+x), treemap) : paddingBottom; - }; - - treemap.paddingLeft = function(x) { - return arguments.length ? (paddingLeft = typeof x === "function" ? x : constant$9(+x), treemap) : paddingLeft; - }; - - return treemap; - } - - function binary(parent, x0, y0, x1, y1) { - var nodes = parent.children, - i, n = nodes.length, - sum, sums = new Array(n + 1); - - for (sums[0] = sum = i = 0; i < n; ++i) { - sums[i + 1] = sum += nodes[i].value; - } - - partition(0, n, parent.value, x0, y0, x1, y1); - - function partition(i, j, value, x0, y0, x1, y1) { - if (i >= j - 1) { - var node = nodes[i]; - node.x0 = x0, node.y0 = y0; - node.x1 = x1, node.y1 = y1; - return; - } - - var valueOffset = sums[i], - valueTarget = (value / 2) + valueOffset, - k = i + 1, - hi = j - 1; - - while (k < hi) { - var mid = k + hi >>> 1; - if (sums[mid] < valueTarget) k = mid + 1; - else hi = mid; - } - - if ((valueTarget - sums[k - 1]) < (sums[k] - valueTarget) && i + 1 < k) --k; - - var valueLeft = sums[k] - valueOffset, - valueRight = value - valueLeft; - - if ((x1 - x0) > (y1 - y0)) { - var xk = (x0 * valueRight + x1 * valueLeft) / value; - partition(i, k, valueLeft, x0, y0, xk, y1); - partition(k, j, valueRight, xk, y0, x1, y1); - } else { - var yk = (y0 * valueRight + y1 * valueLeft) / value; - partition(i, k, valueLeft, x0, y0, x1, yk); - partition(k, j, valueRight, x0, yk, x1, y1); - } - } - } - - function sliceDice(parent, x0, y0, x1, y1) { - (parent.depth & 1 ? treemapSlice : treemapDice)(parent, x0, y0, x1, y1); - } - - var resquarify = (function custom(ratio) { - - function resquarify(parent, x0, y0, x1, y1) { - if ((rows = parent._squarify) && (rows.ratio === ratio)) { - var rows, - row, - nodes, - i, - j = -1, - n, - m = rows.length, - value = parent.value; - - while (++j < m) { - row = rows[j], nodes = row.children; - for (i = row.value = 0, n = nodes.length; i < n; ++i) row.value += nodes[i].value; - if (row.dice) treemapDice(row, x0, y0, x1, y0 += (y1 - y0) * row.value / value); - else treemapSlice(row, x0, y0, x0 += (x1 - x0) * row.value / value, y1); - value -= row.value; - } - } else { - parent._squarify = rows = squarifyRatio(ratio, parent, x0, y0, x1, y1); - rows.ratio = ratio; - } - } - - resquarify.ratio = function(x) { - return custom((x = +x) > 1 ? x : 1); - }; - - return resquarify; - })(phi); - - function area$2(polygon) { - var i = -1, - n = polygon.length, - a, - b = polygon[n - 1], - area = 0; - - while (++i < n) { - a = b; - b = polygon[i]; - area += a[1] * b[0] - a[0] * b[1]; - } - - return area / 2; - } - - function centroid$1(polygon) { - var i = -1, - n = polygon.length, - x = 0, - y = 0, - a, - b = polygon[n - 1], - c, - k = 0; - - while (++i < n) { - a = b; - b = polygon[i]; - k += c = a[0] * b[1] - b[0] * a[1]; - x += (a[0] + b[0]) * c; - y += (a[1] + b[1]) * c; - } - - return k *= 3, [x / k, y / k]; - } - - // Returns the 2D cross product of AB and AC vectors, i.e., the z-component of - // the 3D cross product in a quadrant I Cartesian coordinate system (+x is - // right, +y is up). Returns a positive value if ABC is counter-clockwise, - // negative if clockwise, and zero if the points are collinear. - function cross$1(a, b, c) { - return (b[0] - a[0]) * (c[1] - a[1]) - (b[1] - a[1]) * (c[0] - a[0]); - } - - function lexicographicOrder(a, b) { - return a[0] - b[0] || a[1] - b[1]; - } - - // Computes the upper convex hull per the monotone chain algorithm. - // Assumes points.length >= 3, is sorted by x, unique in y. - // Returns an array of indices into points in left-to-right order. - function computeUpperHullIndexes(points) { - var n = points.length, - indexes = [0, 1], - size = 2; - - for (var i = 2; i < n; ++i) { - while (size > 1 && cross$1(points[indexes[size - 2]], points[indexes[size - 1]], points[i]) <= 0) --size; - indexes[size++] = i; - } - - return indexes.slice(0, size); // remove popped points - } - - function hull(points) { - if ((n = points.length) < 3) return null; - - var i, - n, - sortedPoints = new Array(n), - flippedPoints = new Array(n); - - for (i = 0; i < n; ++i) sortedPoints[i] = [+points[i][0], +points[i][1], i]; - sortedPoints.sort(lexicographicOrder); - for (i = 0; i < n; ++i) flippedPoints[i] = [sortedPoints[i][0], -sortedPoints[i][1]]; - - var upperIndexes = computeUpperHullIndexes(sortedPoints), - lowerIndexes = computeUpperHullIndexes(flippedPoints); - - // Construct the hull polygon, removing possible duplicate endpoints. - var skipLeft = lowerIndexes[0] === upperIndexes[0], - skipRight = lowerIndexes[lowerIndexes.length - 1] === upperIndexes[upperIndexes.length - 1], - hull = []; - - // Add upper hull in right-to-l order. - // Then add lower hull in left-to-right order. - for (i = upperIndexes.length - 1; i >= 0; --i) hull.push(points[sortedPoints[upperIndexes[i]][2]]); - for (i = +skipLeft; i < lowerIndexes.length - skipRight; ++i) hull.push(points[sortedPoints[lowerIndexes[i]][2]]); - - return hull; - } - - function contains$2(polygon, point) { - var n = polygon.length, - p = polygon[n - 1], - x = point[0], y = point[1], - x0 = p[0], y0 = p[1], - x1, y1, - inside = false; - - for (var i = 0; i < n; ++i) { - p = polygon[i], x1 = p[0], y1 = p[1]; - if (((y1 > y) !== (y0 > y)) && (x < (x0 - x1) * (y - y1) / (y0 - y1) + x1)) inside = !inside; - x0 = x1, y0 = y1; - } - - return inside; - } - - function length$2(polygon) { - var i = -1, - n = polygon.length, - b = polygon[n - 1], - xa, - ya, - xb = b[0], - yb = b[1], - perimeter = 0; - - while (++i < n) { - xa = xb; - ya = yb; - b = polygon[i]; - xb = b[0]; - yb = b[1]; - xa -= xb; - ya -= yb; - perimeter += Math.sqrt(xa * xa + ya * ya); - } - - return perimeter; - } - - function defaultSource$1() { - return Math.random(); - } - - var uniform = (function sourceRandomUniform(source) { - function randomUniform(min, max) { - min = min == null ? 0 : +min; - max = max == null ? 1 : +max; - if (arguments.length === 1) max = min, min = 0; - else max -= min; - return function() { - return source() * max + min; - }; - } - - randomUniform.source = sourceRandomUniform; - - return randomUniform; - })(defaultSource$1); - - var normal = (function sourceRandomNormal(source) { - function randomNormal(mu, sigma) { - var x, r; - mu = mu == null ? 0 : +mu; - sigma = sigma == null ? 1 : +sigma; - return function() { - var y; - - // If available, use the second previously-generated uniform random. - if (x != null) y = x, x = null; - - // Otherwise, generate a new x and y. - else do { - x = source() * 2 - 1; - y = source() * 2 - 1; - r = x * x + y * y; - } while (!r || r > 1); - - return mu + sigma * y * Math.sqrt(-2 * Math.log(r) / r); - }; - } - - randomNormal.source = sourceRandomNormal; - - return randomNormal; - })(defaultSource$1); - - var logNormal = (function sourceRandomLogNormal(source) { - function randomLogNormal() { - var randomNormal = normal.source(source).apply(this, arguments); - return function() { - return Math.exp(randomNormal()); - }; - } - - randomLogNormal.source = sourceRandomLogNormal; - - return randomLogNormal; - })(defaultSource$1); - - var irwinHall = (function sourceRandomIrwinHall(source) { - function randomIrwinHall(n) { - return function() { - for (var sum = 0, i = 0; i < n; ++i) sum += source(); - return sum; - }; - } - - randomIrwinHall.source = sourceRandomIrwinHall; - - return randomIrwinHall; - })(defaultSource$1); - - var bates = (function sourceRandomBates(source) { - function randomBates(n) { - var randomIrwinHall = irwinHall.source(source)(n); - return function() { - return randomIrwinHall() / n; - }; - } - - randomBates.source = sourceRandomBates; - - return randomBates; - })(defaultSource$1); - - var exponential$1 = (function sourceRandomExponential(source) { - function randomExponential(lambda) { - return function() { - return -Math.log(1 - source()) / lambda; - }; - } - - randomExponential.source = sourceRandomExponential; - - return randomExponential; - })(defaultSource$1); - - function initRange(domain, range) { - switch (arguments.length) { - case 0: break; - case 1: this.range(domain); break; - default: this.range(range).domain(domain); break; - } - return this; - } - - function initInterpolator(domain, interpolator) { - switch (arguments.length) { - case 0: break; - case 1: this.interpolator(domain); break; - default: this.interpolator(interpolator).domain(domain); break; - } - return this; - } - - var array$3 = Array.prototype; - - var map$3 = array$3.map; - var slice$5 = array$3.slice; - - var implicit = {name: "implicit"}; - - function ordinal() { - var index = map$1(), - domain = [], - range = [], - unknown = implicit; - - function scale(d) { - var key = d + "", i = index.get(key); - if (!i) { - if (unknown !== implicit) return unknown; - index.set(key, i = domain.push(d)); - } - return range[(i - 1) % range.length]; - } - - scale.domain = function(_) { - if (!arguments.length) return domain.slice(); - domain = [], index = map$1(); - var i = -1, n = _.length, d, key; - while (++i < n) if (!index.has(key = (d = _[i]) + "")) index.set(key, domain.push(d)); - return scale; - }; - - scale.range = function(_) { - return arguments.length ? (range = slice$5.call(_), scale) : range.slice(); - }; - - scale.unknown = function(_) { - return arguments.length ? (unknown = _, scale) : unknown; - }; - - scale.copy = function() { - return ordinal(domain, range).unknown(unknown); - }; - - initRange.apply(scale, arguments); - - return scale; - } - - function band() { - var scale = ordinal().unknown(undefined), - domain = scale.domain, - ordinalRange = scale.range, - range = [0, 1], - step, - bandwidth, - round = false, - paddingInner = 0, - paddingOuter = 0, - align = 0.5; - - delete scale.unknown; - - function rescale() { - var n = domain().length, - reverse = range[1] < range[0], - start = range[reverse - 0], - stop = range[1 - reverse]; - step = (stop - start) / Math.max(1, n - paddingInner + paddingOuter * 2); - if (round) step = Math.floor(step); - start += (stop - start - step * (n - paddingInner)) * align; - bandwidth = step * (1 - paddingInner); - if (round) start = Math.round(start), bandwidth = Math.round(bandwidth); - var values = sequence(n).map(function(i) { return start + step * i; }); - return ordinalRange(reverse ? values.reverse() : values); - } - - scale.domain = function(_) { - return arguments.length ? (domain(_), rescale()) : domain(); - }; - - scale.range = function(_) { - return arguments.length ? (range = [+_[0], +_[1]], rescale()) : range.slice(); - }; - - scale.rangeRound = function(_) { - return range = [+_[0], +_[1]], round = true, rescale(); - }; - - scale.bandwidth = function() { - return bandwidth; - }; - - scale.step = function() { - return step; - }; - - scale.round = function(_) { - return arguments.length ? (round = !!_, rescale()) : round; - }; - - scale.padding = function(_) { - return arguments.length ? (paddingInner = Math.min(1, paddingOuter = +_), rescale()) : paddingInner; - }; - - scale.paddingInner = function(_) { - return arguments.length ? (paddingInner = Math.min(1, _), rescale()) : paddingInner; - }; - - scale.paddingOuter = function(_) { - return arguments.length ? (paddingOuter = +_, rescale()) : paddingOuter; - }; - - scale.align = function(_) { - return arguments.length ? (align = Math.max(0, Math.min(1, _)), rescale()) : align; - }; - - scale.copy = function() { - return band(domain(), range) - .round(round) - .paddingInner(paddingInner) - .paddingOuter(paddingOuter) - .align(align); - }; - - return initRange.apply(rescale(), arguments); - } - - function pointish(scale) { - var copy = scale.copy; - - scale.padding = scale.paddingOuter; - delete scale.paddingInner; - delete scale.paddingOuter; - - scale.copy = function() { - return pointish(copy()); - }; - - return scale; - } - - function point$1() { - return pointish(band.apply(null, arguments).paddingInner(1)); - } - - function constant$a(x) { - return function() { - return x; - }; - } - - function number$2(x) { - return +x; - } - - var unit = [0, 1]; - - function identity$6(x) { - return x; - } - - function normalize(a, b) { - return (b -= (a = +a)) - ? function(x) { return (x - a) / b; } - : constant$a(isNaN(b) ? NaN : 0.5); - } - - function clamper(domain) { - var a = domain[0], b = domain[domain.length - 1], t; - if (a > b) t = a, a = b, b = t; - return function(x) { return Math.max(a, Math.min(b, x)); }; - } - - // normalize(a, b)(x) takes a domain value x in [a,b] and returns the corresponding parameter t in [0,1]. - // interpolate(a, b)(t) takes a parameter t in [0,1] and returns the corresponding range value x in [a,b]. - function bimap(domain, range, interpolate) { - var d0 = domain[0], d1 = domain[1], r0 = range[0], r1 = range[1]; - if (d1 < d0) d0 = normalize(d1, d0), r0 = interpolate(r1, r0); - else d0 = normalize(d0, d1), r0 = interpolate(r0, r1); - return function(x) { return r0(d0(x)); }; - } - - function polymap(domain, range, interpolate) { - var j = Math.min(domain.length, range.length) - 1, - d = new Array(j), - r = new Array(j), - i = -1; - - // Reverse descending domains. - if (domain[j] < domain[0]) { - domain = domain.slice().reverse(); - range = range.slice().reverse(); - } - - while (++i < j) { - d[i] = normalize(domain[i], domain[i + 1]); - r[i] = interpolate(range[i], range[i + 1]); - } - - return function(x) { - var i = bisectRight(domain, x, 1, j) - 1; - return r[i](d[i](x)); - }; - } - - function copy(source, target) { - return target - .domain(source.domain()) - .range(source.range()) - .interpolate(source.interpolate()) - .clamp(source.clamp()) - .unknown(source.unknown()); - } - - function transformer$1() { - var domain = unit, - range = unit, - interpolate = interpolateValue, - transform, - untransform, - unknown, - clamp = identity$6, - piecewise, - output, - input; - - function rescale() { - piecewise = Math.min(domain.length, range.length) > 2 ? polymap : bimap; - output = input = null; - return scale; - } - - function scale(x) { - return isNaN(x = +x) ? unknown : (output || (output = piecewise(domain.map(transform), range, interpolate)))(transform(clamp(x))); - } - - scale.invert = function(y) { - return clamp(untransform((input || (input = piecewise(range, domain.map(transform), interpolateNumber)))(y))); - }; - - scale.domain = function(_) { - return arguments.length ? (domain = map$3.call(_, number$2), clamp === identity$6 || (clamp = clamper(domain)), rescale()) : domain.slice(); - }; - - scale.range = function(_) { - return arguments.length ? (range = slice$5.call(_), rescale()) : range.slice(); - }; - - scale.rangeRound = function(_) { - return range = slice$5.call(_), interpolate = interpolateRound, rescale(); - }; - - scale.clamp = function(_) { - return arguments.length ? (clamp = _ ? clamper(domain) : identity$6, scale) : clamp !== identity$6; - }; - - scale.interpolate = function(_) { - return arguments.length ? (interpolate = _, rescale()) : interpolate; - }; - - scale.unknown = function(_) { - return arguments.length ? (unknown = _, scale) : unknown; - }; - - return function(t, u) { - transform = t, untransform = u; - return rescale(); - }; - } - - function continuous(transform, untransform) { - return transformer$1()(transform, untransform); - } - - function tickFormat(start, stop, count, specifier) { - var step = tickStep(start, stop, count), - precision; - specifier = formatSpecifier(specifier == null ? ",f" : specifier); - switch (specifier.type) { - case "s": { - var value = Math.max(Math.abs(start), Math.abs(stop)); - if (specifier.precision == null && !isNaN(precision = precisionPrefix(step, value))) specifier.precision = precision; - return formatPrefix(specifier, value); - } - case "": - case "e": - case "g": - case "p": - case "r": { - if (specifier.precision == null && !isNaN(precision = precisionRound(step, Math.max(Math.abs(start), Math.abs(stop))))) specifier.precision = precision - (specifier.type === "e"); - break; - } - case "f": - case "%": { - if (specifier.precision == null && !isNaN(precision = precisionFixed(step))) specifier.precision = precision - (specifier.type === "%") * 2; - break; - } - } - return format(specifier); - } - - function linearish(scale) { - var domain = scale.domain; - - scale.ticks = function(count) { - var d = domain(); - return ticks(d[0], d[d.length - 1], count == null ? 10 : count); - }; - - scale.tickFormat = function(count, specifier) { - var d = domain(); - return tickFormat(d[0], d[d.length - 1], count == null ? 10 : count, specifier); - }; - - scale.nice = function(count) { - if (count == null) count = 10; - - var d = domain(), - i0 = 0, - i1 = d.length - 1, - start = d[i0], - stop = d[i1], - step; - - if (stop < start) { - step = start, start = stop, stop = step; - step = i0, i0 = i1, i1 = step; - } - - step = tickIncrement(start, stop, count); - - if (step > 0) { - start = Math.floor(start / step) * step; - stop = Math.ceil(stop / step) * step; - step = tickIncrement(start, stop, count); - } else if (step < 0) { - start = Math.ceil(start * step) / step; - stop = Math.floor(stop * step) / step; - step = tickIncrement(start, stop, count); - } - - if (step > 0) { - d[i0] = Math.floor(start / step) * step; - d[i1] = Math.ceil(stop / step) * step; - domain(d); - } else if (step < 0) { - d[i0] = Math.ceil(start * step) / step; - d[i1] = Math.floor(stop * step) / step; - domain(d); - } - - return scale; - }; - - return scale; - } - - function linear$2() { - var scale = continuous(identity$6, identity$6); - - scale.copy = function() { - return copy(scale, linear$2()); - }; - - initRange.apply(scale, arguments); - - return linearish(scale); - } - - function identity$7(domain) { - var unknown; - - function scale(x) { - return isNaN(x = +x) ? unknown : x; - } - - scale.invert = scale; - - scale.domain = scale.range = function(_) { - return arguments.length ? (domain = map$3.call(_, number$2), scale) : domain.slice(); - }; - - scale.unknown = function(_) { - return arguments.length ? (unknown = _, scale) : unknown; - }; - - scale.copy = function() { - return identity$7(domain).unknown(unknown); - }; - - domain = arguments.length ? map$3.call(domain, number$2) : [0, 1]; - - return linearish(scale); - } - - function nice(domain, interval) { - domain = domain.slice(); - - var i0 = 0, - i1 = domain.length - 1, - x0 = domain[i0], - x1 = domain[i1], - t; - - if (x1 < x0) { - t = i0, i0 = i1, i1 = t; - t = x0, x0 = x1, x1 = t; - } - - domain[i0] = interval.floor(x0); - domain[i1] = interval.ceil(x1); - return domain; - } - - function transformLog(x) { - return Math.log(x); - } - - function transformExp(x) { - return Math.exp(x); - } - - function transformLogn(x) { - return -Math.log(-x); - } - - function transformExpn(x) { - return -Math.exp(-x); - } - - function pow10(x) { - return isFinite(x) ? +("1e" + x) : x < 0 ? 0 : x; - } - - function powp(base) { - return base === 10 ? pow10 - : base === Math.E ? Math.exp - : function(x) { return Math.pow(base, x); }; - } - - function logp(base) { - return base === Math.E ? Math.log - : base === 10 && Math.log10 - || base === 2 && Math.log2 - || (base = Math.log(base), function(x) { return Math.log(x) / base; }); - } - - function reflect(f) { - return function(x) { - return -f(-x); - }; - } - - function loggish(transform) { - var scale = transform(transformLog, transformExp), - domain = scale.domain, - base = 10, - logs, - pows; - - function rescale() { - logs = logp(base), pows = powp(base); - if (domain()[0] < 0) { - logs = reflect(logs), pows = reflect(pows); - transform(transformLogn, transformExpn); - } else { - transform(transformLog, transformExp); - } - return scale; - } - - scale.base = function(_) { - return arguments.length ? (base = +_, rescale()) : base; - }; - - scale.domain = function(_) { - return arguments.length ? (domain(_), rescale()) : domain(); - }; - - scale.ticks = function(count) { - var d = domain(), - u = d[0], - v = d[d.length - 1], - r; - - if (r = v < u) i = u, u = v, v = i; - - var i = logs(u), - j = logs(v), - p, - k, - t, - n = count == null ? 10 : +count, - z = []; - - if (!(base % 1) && j - i < n) { - i = Math.round(i) - 1, j = Math.round(j) + 1; - if (u > 0) for (; i < j; ++i) { - for (k = 1, p = pows(i); k < base; ++k) { - t = p * k; - if (t < u) continue; - if (t > v) break; - z.push(t); - } - } else for (; i < j; ++i) { - for (k = base - 1, p = pows(i); k >= 1; --k) { - t = p * k; - if (t < u) continue; - if (t > v) break; - z.push(t); - } - } - } else { - z = ticks(i, j, Math.min(j - i, n)).map(pows); - } - - return r ? z.reverse() : z; - }; - - scale.tickFormat = function(count, specifier) { - if (specifier == null) specifier = base === 10 ? ".0e" : ","; - if (typeof specifier !== "function") specifier = format(specifier); - if (count === Infinity) return specifier; - if (count == null) count = 10; - var k = Math.max(1, base * count / scale.ticks().length); // TODO fast estimate? - return function(d) { - var i = d / pows(Math.round(logs(d))); - if (i * base < base - 0.5) i *= base; - return i <= k ? specifier(d) : ""; - }; - }; - - scale.nice = function() { - return domain(nice(domain(), { - floor: function(x) { return pows(Math.floor(logs(x))); }, - ceil: function(x) { return pows(Math.ceil(logs(x))); } - })); - }; - - return scale; - } - - function log$1() { - var scale = loggish(transformer$1()).domain([1, 10]); - - scale.copy = function() { - return copy(scale, log$1()).base(scale.base()); - }; - - initRange.apply(scale, arguments); - - return scale; - } - - function transformSymlog(c) { - return function(x) { - return Math.sign(x) * Math.log1p(Math.abs(x / c)); - }; - } - - function transformSymexp(c) { - return function(x) { - return Math.sign(x) * Math.expm1(Math.abs(x)) * c; - }; - } - - function symlogish(transform) { - var c = 1, scale = transform(transformSymlog(c), transformSymexp(c)); - - scale.constant = function(_) { - return arguments.length ? transform(transformSymlog(c = +_), transformSymexp(c)) : c; - }; - - return linearish(scale); - } - - function symlog() { - var scale = symlogish(transformer$1()); - - scale.copy = function() { - return copy(scale, symlog()).constant(scale.constant()); - }; - - return initRange.apply(scale, arguments); - } - - function transformPow(exponent) { - return function(x) { - return x < 0 ? -Math.pow(-x, exponent) : Math.pow(x, exponent); - }; - } - - function transformSqrt(x) { - return x < 0 ? -Math.sqrt(-x) : Math.sqrt(x); - } - - function transformSquare(x) { - return x < 0 ? -x * x : x * x; - } - - function powish(transform) { - var scale = transform(identity$6, identity$6), - exponent = 1; - - function rescale() { - return exponent === 1 ? transform(identity$6, identity$6) - : exponent === 0.5 ? transform(transformSqrt, transformSquare) - : transform(transformPow(exponent), transformPow(1 / exponent)); - } - - scale.exponent = function(_) { - return arguments.length ? (exponent = +_, rescale()) : exponent; - }; - - return linearish(scale); - } - - function pow$1() { - var scale = powish(transformer$1()); - - scale.copy = function() { - return copy(scale, pow$1()).exponent(scale.exponent()); - }; - - initRange.apply(scale, arguments); - - return scale; - } - - function sqrt$1() { - return pow$1.apply(null, arguments).exponent(0.5); - } - - function quantile() { - var domain = [], - range = [], - thresholds = [], - unknown; - - function rescale() { - var i = 0, n = Math.max(1, range.length); - thresholds = new Array(n - 1); - while (++i < n) thresholds[i - 1] = threshold(domain, i / n); - return scale; - } - - function scale(x) { - return isNaN(x = +x) ? unknown : range[bisectRight(thresholds, x)]; - } - - scale.invertExtent = function(y) { - var i = range.indexOf(y); - return i < 0 ? [NaN, NaN] : [ - i > 0 ? thresholds[i - 1] : domain[0], - i < thresholds.length ? thresholds[i] : domain[domain.length - 1] - ]; - }; - - scale.domain = function(_) { - if (!arguments.length) return domain.slice(); - domain = []; - for (var i = 0, n = _.length, d; i < n; ++i) if (d = _[i], d != null && !isNaN(d = +d)) domain.push(d); - domain.sort(ascending); - return rescale(); - }; - - scale.range = function(_) { - return arguments.length ? (range = slice$5.call(_), rescale()) : range.slice(); - }; - - scale.unknown = function(_) { - return arguments.length ? (unknown = _, scale) : unknown; - }; - - scale.quantiles = function() { - return thresholds.slice(); - }; - - scale.copy = function() { - return quantile() - .domain(domain) - .range(range) - .unknown(unknown); - }; - - return initRange.apply(scale, arguments); - } - - function quantize$1() { - var x0 = 0, - x1 = 1, - n = 1, - domain = [0.5], - range = [0, 1], - unknown; - - function scale(x) { - return x <= x ? range[bisectRight(domain, x, 0, n)] : unknown; - } - - function rescale() { - var i = -1; - domain = new Array(n); - while (++i < n) domain[i] = ((i + 1) * x1 - (i - n) * x0) / (n + 1); - return scale; - } - - scale.domain = function(_) { - return arguments.length ? (x0 = +_[0], x1 = +_[1], rescale()) : [x0, x1]; - }; - - scale.range = function(_) { - return arguments.length ? (n = (range = slice$5.call(_)).length - 1, rescale()) : range.slice(); - }; - - scale.invertExtent = function(y) { - var i = range.indexOf(y); - return i < 0 ? [NaN, NaN] - : i < 1 ? [x0, domain[0]] - : i >= n ? [domain[n - 1], x1] - : [domain[i - 1], domain[i]]; - }; - - scale.unknown = function(_) { - return arguments.length ? (unknown = _, scale) : scale; - }; - - scale.thresholds = function() { - return domain.slice(); - }; - - scale.copy = function() { - return quantize$1() - .domain([x0, x1]) - .range(range) - .unknown(unknown); - }; - - return initRange.apply(linearish(scale), arguments); - } - - function threshold$1() { - var domain = [0.5], - range = [0, 1], - unknown, - n = 1; - - function scale(x) { - return x <= x ? range[bisectRight(domain, x, 0, n)] : unknown; - } - - scale.domain = function(_) { - return arguments.length ? (domain = slice$5.call(_), n = Math.min(domain.length, range.length - 1), scale) : domain.slice(); - }; - - scale.range = function(_) { - return arguments.length ? (range = slice$5.call(_), n = Math.min(domain.length, range.length - 1), scale) : range.slice(); - }; - - scale.invertExtent = function(y) { - var i = range.indexOf(y); - return [domain[i - 1], domain[i]]; - }; - - scale.unknown = function(_) { - return arguments.length ? (unknown = _, scale) : unknown; - }; - - scale.copy = function() { - return threshold$1() - .domain(domain) - .range(range) - .unknown(unknown); - }; - - return initRange.apply(scale, arguments); - } - - var t0$1 = new Date, - t1$1 = new Date; - - function newInterval(floori, offseti, count, field) { - - function interval(date) { - return floori(date = arguments.length === 0 ? new Date : new Date(+date)), date; - } - - interval.floor = function(date) { - return floori(date = new Date(+date)), date; - }; - - interval.ceil = function(date) { - return floori(date = new Date(date - 1)), offseti(date, 1), floori(date), date; - }; - - interval.round = function(date) { - var d0 = interval(date), - d1 = interval.ceil(date); - return date - d0 < d1 - date ? d0 : d1; - }; - - interval.offset = function(date, step) { - return offseti(date = new Date(+date), step == null ? 1 : Math.floor(step)), date; - }; - - interval.range = function(start, stop, step) { - var range = [], previous; - start = interval.ceil(start); - step = step == null ? 1 : Math.floor(step); - if (!(start < stop) || !(step > 0)) return range; // also handles Invalid Date - do range.push(previous = new Date(+start)), offseti(start, step), floori(start); - while (previous < start && start < stop); - return range; - }; - - interval.filter = function(test) { - return newInterval(function(date) { - if (date >= date) while (floori(date), !test(date)) date.setTime(date - 1); - }, function(date, step) { - if (date >= date) { - if (step < 0) while (++step <= 0) { - while (offseti(date, -1), !test(date)) {} // eslint-disable-line no-empty - } else while (--step >= 0) { - while (offseti(date, +1), !test(date)) {} // eslint-disable-line no-empty - } - } - }); - }; - - if (count) { - interval.count = function(start, end) { - t0$1.setTime(+start), t1$1.setTime(+end); - floori(t0$1), floori(t1$1); - return Math.floor(count(t0$1, t1$1)); - }; - - interval.every = function(step) { - step = Math.floor(step); - return !isFinite(step) || !(step > 0) ? null - : !(step > 1) ? interval - : interval.filter(field - ? function(d) { return field(d) % step === 0; } - : function(d) { return interval.count(0, d) % step === 0; }); - }; - } - - return interval; - } - - var millisecond = newInterval(function() { - // noop - }, function(date, step) { - date.setTime(+date + step); - }, function(start, end) { - return end - start; - }); - - // An optimized implementation for this simple case. - millisecond.every = function(k) { - k = Math.floor(k); - if (!isFinite(k) || !(k > 0)) return null; - if (!(k > 1)) return millisecond; - return newInterval(function(date) { - date.setTime(Math.floor(date / k) * k); - }, function(date, step) { - date.setTime(+date + step * k); - }, function(start, end) { - return (end - start) / k; - }); - }; - var milliseconds = millisecond.range; - - var durationSecond = 1e3; - var durationMinute = 6e4; - var durationHour = 36e5; - var durationDay = 864e5; - var durationWeek = 6048e5; - - var second = newInterval(function(date) { - date.setTime(date - date.getMilliseconds()); - }, function(date, step) { - date.setTime(+date + step * durationSecond); - }, function(start, end) { - return (end - start) / durationSecond; - }, function(date) { - return date.getUTCSeconds(); - }); - var seconds = second.range; - - var minute = newInterval(function(date) { - date.setTime(date - date.getMilliseconds() - date.getSeconds() * durationSecond); - }, function(date, step) { - date.setTime(+date + step * durationMinute); - }, function(start, end) { - return (end - start) / durationMinute; - }, function(date) { - return date.getMinutes(); - }); - var minutes = minute.range; - - var hour = newInterval(function(date) { - date.setTime(date - date.getMilliseconds() - date.getSeconds() * durationSecond - date.getMinutes() * durationMinute); - }, function(date, step) { - date.setTime(+date + step * durationHour); - }, function(start, end) { - return (end - start) / durationHour; - }, function(date) { - return date.getHours(); - }); - var hours = hour.range; - - var day = newInterval(function(date) { - date.setHours(0, 0, 0, 0); - }, function(date, step) { - date.setDate(date.getDate() + step); - }, function(start, end) { - return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationDay; - }, function(date) { - return date.getDate() - 1; - }); - var days = day.range; - - function weekday(i) { - return newInterval(function(date) { - date.setDate(date.getDate() - (date.getDay() + 7 - i) % 7); - date.setHours(0, 0, 0, 0); - }, function(date, step) { - date.setDate(date.getDate() + step * 7); - }, function(start, end) { - return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationWeek; - }); - } - - var sunday = weekday(0); - var monday = weekday(1); - var tuesday = weekday(2); - var wednesday = weekday(3); - var thursday = weekday(4); - var friday = weekday(5); - var saturday = weekday(6); - - var sundays = sunday.range; - var mondays = monday.range; - var tuesdays = tuesday.range; - var wednesdays = wednesday.range; - var thursdays = thursday.range; - var fridays = friday.range; - var saturdays = saturday.range; - - var month = newInterval(function(date) { - date.setDate(1); - date.setHours(0, 0, 0, 0); - }, function(date, step) { - date.setMonth(date.getMonth() + step); - }, function(start, end) { - return end.getMonth() - start.getMonth() + (end.getFullYear() - start.getFullYear()) * 12; - }, function(date) { - return date.getMonth(); - }); - var months = month.range; - - var year = newInterval(function(date) { - date.setMonth(0, 1); - date.setHours(0, 0, 0, 0); - }, function(date, step) { - date.setFullYear(date.getFullYear() + step); - }, function(start, end) { - return end.getFullYear() - start.getFullYear(); - }, function(date) { - return date.getFullYear(); - }); - - // An optimized implementation for this simple case. - year.every = function(k) { - return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function(date) { - date.setFullYear(Math.floor(date.getFullYear() / k) * k); - date.setMonth(0, 1); - date.setHours(0, 0, 0, 0); - }, function(date, step) { - date.setFullYear(date.getFullYear() + step * k); - }); - }; - var years = year.range; - - var utcMinute = newInterval(function(date) { - date.setUTCSeconds(0, 0); - }, function(date, step) { - date.setTime(+date + step * durationMinute); - }, function(start, end) { - return (end - start) / durationMinute; - }, function(date) { - return date.getUTCMinutes(); - }); - var utcMinutes = utcMinute.range; - - var utcHour = newInterval(function(date) { - date.setUTCMinutes(0, 0, 0); - }, function(date, step) { - date.setTime(+date + step * durationHour); - }, function(start, end) { - return (end - start) / durationHour; - }, function(date) { - return date.getUTCHours(); - }); - var utcHours = utcHour.range; - - var utcDay = newInterval(function(date) { - date.setUTCHours(0, 0, 0, 0); - }, function(date, step) { - date.setUTCDate(date.getUTCDate() + step); - }, function(start, end) { - return (end - start) / durationDay; - }, function(date) { - return date.getUTCDate() - 1; - }); - var utcDays = utcDay.range; - - function utcWeekday(i) { - return newInterval(function(date) { - date.setUTCDate(date.getUTCDate() - (date.getUTCDay() + 7 - i) % 7); - date.setUTCHours(0, 0, 0, 0); - }, function(date, step) { - date.setUTCDate(date.getUTCDate() + step * 7); - }, function(start, end) { - return (end - start) / durationWeek; - }); - } - - var utcSunday = utcWeekday(0); - var utcMonday = utcWeekday(1); - var utcTuesday = utcWeekday(2); - var utcWednesday = utcWeekday(3); - var utcThursday = utcWeekday(4); - var utcFriday = utcWeekday(5); - var utcSaturday = utcWeekday(6); - - var utcSundays = utcSunday.range; - var utcMondays = utcMonday.range; - var utcTuesdays = utcTuesday.range; - var utcWednesdays = utcWednesday.range; - var utcThursdays = utcThursday.range; - var utcFridays = utcFriday.range; - var utcSaturdays = utcSaturday.range; - - var utcMonth = newInterval(function(date) { - date.setUTCDate(1); - date.setUTCHours(0, 0, 0, 0); - }, function(date, step) { - date.setUTCMonth(date.getUTCMonth() + step); - }, function(start, end) { - return end.getUTCMonth() - start.getUTCMonth() + (end.getUTCFullYear() - start.getUTCFullYear()) * 12; - }, function(date) { - return date.getUTCMonth(); - }); - var utcMonths = utcMonth.range; - - var utcYear = newInterval(function(date) { - date.setUTCMonth(0, 1); - date.setUTCHours(0, 0, 0, 0); - }, function(date, step) { - date.setUTCFullYear(date.getUTCFullYear() + step); - }, function(start, end) { - return end.getUTCFullYear() - start.getUTCFullYear(); - }, function(date) { - return date.getUTCFullYear(); - }); - - // An optimized implementation for this simple case. - utcYear.every = function(k) { - return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function(date) { - date.setUTCFullYear(Math.floor(date.getUTCFullYear() / k) * k); - date.setUTCMonth(0, 1); - date.setUTCHours(0, 0, 0, 0); - }, function(date, step) { - date.setUTCFullYear(date.getUTCFullYear() + step * k); - }); - }; - var utcYears = utcYear.range; - - function localDate(d) { - if (0 <= d.y && d.y < 100) { - var date = new Date(-1, d.m, d.d, d.H, d.M, d.S, d.L); - date.setFullYear(d.y); - return date; - } - return new Date(d.y, d.m, d.d, d.H, d.M, d.S, d.L); - } - - function utcDate(d) { - if (0 <= d.y && d.y < 100) { - var date = new Date(Date.UTC(-1, d.m, d.d, d.H, d.M, d.S, d.L)); - date.setUTCFullYear(d.y); - return date; - } - return new Date(Date.UTC(d.y, d.m, d.d, d.H, d.M, d.S, d.L)); - } - - function newDate(y, m, d) { - return {y: y, m: m, d: d, H: 0, M: 0, S: 0, L: 0}; - } - - function formatLocale$1(locale) { - var locale_dateTime = locale.dateTime, - locale_date = locale.date, - locale_time = locale.time, - locale_periods = locale.periods, - locale_weekdays = locale.days, - locale_shortWeekdays = locale.shortDays, - locale_months = locale.months, - locale_shortMonths = locale.shortMonths; - - var periodRe = formatRe(locale_periods), - periodLookup = formatLookup(locale_periods), - weekdayRe = formatRe(locale_weekdays), - weekdayLookup = formatLookup(locale_weekdays), - shortWeekdayRe = formatRe(locale_shortWeekdays), - shortWeekdayLookup = formatLookup(locale_shortWeekdays), - monthRe = formatRe(locale_months), - monthLookup = formatLookup(locale_months), - shortMonthRe = formatRe(locale_shortMonths), - shortMonthLookup = formatLookup(locale_shortMonths); - - var formats = { - "a": formatShortWeekday, - "A": formatWeekday, - "b": formatShortMonth, - "B": formatMonth, - "c": null, - "d": formatDayOfMonth, - "e": formatDayOfMonth, - "f": formatMicroseconds, - "H": formatHour24, - "I": formatHour12, - "j": formatDayOfYear, - "L": formatMilliseconds, - "m": formatMonthNumber, - "M": formatMinutes, - "p": formatPeriod, - "q": formatQuarter, - "Q": formatUnixTimestamp, - "s": formatUnixTimestampSeconds, - "S": formatSeconds, - "u": formatWeekdayNumberMonday, - "U": formatWeekNumberSunday, - "V": formatWeekNumberISO, - "w": formatWeekdayNumberSunday, - "W": formatWeekNumberMonday, - "x": null, - "X": null, - "y": formatYear$1, - "Y": formatFullYear, - "Z": formatZone, - "%": formatLiteralPercent - }; - - var utcFormats = { - "a": formatUTCShortWeekday, - "A": formatUTCWeekday, - "b": formatUTCShortMonth, - "B": formatUTCMonth, - "c": null, - "d": formatUTCDayOfMonth, - "e": formatUTCDayOfMonth, - "f": formatUTCMicroseconds, - "H": formatUTCHour24, - "I": formatUTCHour12, - "j": formatUTCDayOfYear, - "L": formatUTCMilliseconds, - "m": formatUTCMonthNumber, - "M": formatUTCMinutes, - "p": formatUTCPeriod, - "q": formatUTCQuarter, - "Q": formatUnixTimestamp, - "s": formatUnixTimestampSeconds, - "S": formatUTCSeconds, - "u": formatUTCWeekdayNumberMonday, - "U": formatUTCWeekNumberSunday, - "V": formatUTCWeekNumberISO, - "w": formatUTCWeekdayNumberSunday, - "W": formatUTCWeekNumberMonday, - "x": null, - "X": null, - "y": formatUTCYear, - "Y": formatUTCFullYear, - "Z": formatUTCZone, - "%": formatLiteralPercent - }; - - var parses = { - "a": parseShortWeekday, - "A": parseWeekday, - "b": parseShortMonth, - "B": parseMonth, - "c": parseLocaleDateTime, - "d": parseDayOfMonth, - "e": parseDayOfMonth, - "f": parseMicroseconds, - "H": parseHour24, - "I": parseHour24, - "j": parseDayOfYear, - "L": parseMilliseconds, - "m": parseMonthNumber, - "M": parseMinutes, - "p": parsePeriod, - "q": parseQuarter, - "Q": parseUnixTimestamp, - "s": parseUnixTimestampSeconds, - "S": parseSeconds, - "u": parseWeekdayNumberMonday, - "U": parseWeekNumberSunday, - "V": parseWeekNumberISO, - "w": parseWeekdayNumberSunday, - "W": parseWeekNumberMonday, - "x": parseLocaleDate, - "X": parseLocaleTime, - "y": parseYear, - "Y": parseFullYear, - "Z": parseZone, - "%": parseLiteralPercent - }; - - // These recursive directive definitions must be deferred. - formats.x = newFormat(locale_date, formats); - formats.X = newFormat(locale_time, formats); - formats.c = newFormat(locale_dateTime, formats); - utcFormats.x = newFormat(locale_date, utcFormats); - utcFormats.X = newFormat(locale_time, utcFormats); - utcFormats.c = newFormat(locale_dateTime, utcFormats); - - function newFormat(specifier, formats) { - return function(date) { - var string = [], - i = -1, - j = 0, - n = specifier.length, - c, - pad, - format; - - if (!(date instanceof Date)) date = new Date(+date); - - while (++i < n) { - if (specifier.charCodeAt(i) === 37) { - string.push(specifier.slice(j, i)); - if ((pad = pads[c = specifier.charAt(++i)]) != null) c = specifier.charAt(++i); - else pad = c === "e" ? " " : "0"; - if (format = formats[c]) c = format(date, pad); - string.push(c); - j = i + 1; - } - } - - string.push(specifier.slice(j, i)); - return string.join(""); - }; - } - - function newParse(specifier, Z) { - return function(string) { - var d = newDate(1900, undefined, 1), - i = parseSpecifier(d, specifier, string += "", 0), - week, day$1; - if (i != string.length) return null; - - // If a UNIX timestamp is specified, return it. - if ("Q" in d) return new Date(d.Q); - if ("s" in d) return new Date(d.s * 1000 + ("L" in d ? d.L : 0)); - - // If this is utcParse, never use the local timezone. - if (Z && !("Z" in d)) d.Z = 0; - - // The am-pm flag is 0 for AM, and 1 for PM. - if ("p" in d) d.H = d.H % 12 + d.p * 12; - - // If the month was not specified, inherit from the quarter. - if (d.m === undefined) d.m = "q" in d ? d.q : 0; - - // Convert day-of-week and week-of-year to day-of-year. - if ("V" in d) { - if (d.V < 1 || d.V > 53) return null; - if (!("w" in d)) d.w = 1; - if ("Z" in d) { - week = utcDate(newDate(d.y, 0, 1)), day$1 = week.getUTCDay(); - week = day$1 > 4 || day$1 === 0 ? utcMonday.ceil(week) : utcMonday(week); - week = utcDay.offset(week, (d.V - 1) * 7); - d.y = week.getUTCFullYear(); - d.m = week.getUTCMonth(); - d.d = week.getUTCDate() + (d.w + 6) % 7; - } else { - week = localDate(newDate(d.y, 0, 1)), day$1 = week.getDay(); - week = day$1 > 4 || day$1 === 0 ? monday.ceil(week) : monday(week); - week = day.offset(week, (d.V - 1) * 7); - d.y = week.getFullYear(); - d.m = week.getMonth(); - d.d = week.getDate() + (d.w + 6) % 7; - } - } else if ("W" in d || "U" in d) { - if (!("w" in d)) d.w = "u" in d ? d.u % 7 : "W" in d ? 1 : 0; - day$1 = "Z" in d ? utcDate(newDate(d.y, 0, 1)).getUTCDay() : localDate(newDate(d.y, 0, 1)).getDay(); - d.m = 0; - d.d = "W" in d ? (d.w + 6) % 7 + d.W * 7 - (day$1 + 5) % 7 : d.w + d.U * 7 - (day$1 + 6) % 7; - } - - // If a time zone is specified, all fields are interpreted as UTC and then - // offset according to the specified time zone. - if ("Z" in d) { - d.H += d.Z / 100 | 0; - d.M += d.Z % 100; - return utcDate(d); - } - - // Otherwise, all fields are in local time. - return localDate(d); - }; - } - - function parseSpecifier(d, specifier, string, j) { - var i = 0, - n = specifier.length, - m = string.length, - c, - parse; - - while (i < n) { - if (j >= m) return -1; - c = specifier.charCodeAt(i++); - if (c === 37) { - c = specifier.charAt(i++); - parse = parses[c in pads ? specifier.charAt(i++) : c]; - if (!parse || ((j = parse(d, string, j)) < 0)) return -1; - } else if (c != string.charCodeAt(j++)) { - return -1; - } - } - - return j; - } - - function parsePeriod(d, string, i) { - var n = periodRe.exec(string.slice(i)); - return n ? (d.p = periodLookup[n[0].toLowerCase()], i + n[0].length) : -1; - } - - function parseShortWeekday(d, string, i) { - var n = shortWeekdayRe.exec(string.slice(i)); - return n ? (d.w = shortWeekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1; - } - - function parseWeekday(d, string, i) { - var n = weekdayRe.exec(string.slice(i)); - return n ? (d.w = weekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1; - } - - function parseShortMonth(d, string, i) { - var n = shortMonthRe.exec(string.slice(i)); - return n ? (d.m = shortMonthLookup[n[0].toLowerCase()], i + n[0].length) : -1; - } - - function parseMonth(d, string, i) { - var n = monthRe.exec(string.slice(i)); - return n ? (d.m = monthLookup[n[0].toLowerCase()], i + n[0].length) : -1; - } - - function parseLocaleDateTime(d, string, i) { - return parseSpecifier(d, locale_dateTime, string, i); - } - - function parseLocaleDate(d, string, i) { - return parseSpecifier(d, locale_date, string, i); - } - - function parseLocaleTime(d, string, i) { - return parseSpecifier(d, locale_time, string, i); - } - - function formatShortWeekday(d) { - return locale_shortWeekdays[d.getDay()]; - } - - function formatWeekday(d) { - return locale_weekdays[d.getDay()]; - } - - function formatShortMonth(d) { - return locale_shortMonths[d.getMonth()]; - } - - function formatMonth(d) { - return locale_months[d.getMonth()]; - } - - function formatPeriod(d) { - return locale_periods[+(d.getHours() >= 12)]; - } - - function formatQuarter(d) { - return 1 + ~~(d.getMonth() / 3); - } - - function formatUTCShortWeekday(d) { - return locale_shortWeekdays[d.getUTCDay()]; - } - - function formatUTCWeekday(d) { - return locale_weekdays[d.getUTCDay()]; - } - - function formatUTCShortMonth(d) { - return locale_shortMonths[d.getUTCMonth()]; - } - - function formatUTCMonth(d) { - return locale_months[d.getUTCMonth()]; - } - - function formatUTCPeriod(d) { - return locale_periods[+(d.getUTCHours() >= 12)]; - } - - function formatUTCQuarter(d) { - return 1 + ~~(d.getUTCMonth() / 3); - } - - return { - format: function(specifier) { - var f = newFormat(specifier += "", formats); - f.toString = function() { return specifier; }; - return f; - }, - parse: function(specifier) { - var p = newParse(specifier += "", false); - p.toString = function() { return specifier; }; - return p; - }, - utcFormat: function(specifier) { - var f = newFormat(specifier += "", utcFormats); - f.toString = function() { return specifier; }; - return f; - }, - utcParse: function(specifier) { - var p = newParse(specifier += "", true); - p.toString = function() { return specifier; }; - return p; - } - }; - } - - var pads = {"-": "", "_": " ", "0": "0"}, - numberRe = /^\s*\d+/, // note: ignores next directive - percentRe = /^%/, - requoteRe = /[\\^$*+?|[\]().{}]/g; - - function pad$1(value, fill, width) { - var sign = value < 0 ? "-" : "", - string = (sign ? -value : value) + "", - length = string.length; - return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string); - } - - function requote(s) { - return s.replace(requoteRe, "\\$&"); - } - - function formatRe(names) { - return new RegExp("^(?:" + names.map(requote).join("|") + ")", "i"); - } - - function formatLookup(names) { - var map = {}, i = -1, n = names.length; - while (++i < n) map[names[i].toLowerCase()] = i; - return map; - } - - function parseWeekdayNumberSunday(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 1)); - return n ? (d.w = +n[0], i + n[0].length) : -1; - } - - function parseWeekdayNumberMonday(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 1)); - return n ? (d.u = +n[0], i + n[0].length) : -1; - } - - function parseWeekNumberSunday(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 2)); - return n ? (d.U = +n[0], i + n[0].length) : -1; - } - - function parseWeekNumberISO(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 2)); - return n ? (d.V = +n[0], i + n[0].length) : -1; - } - - function parseWeekNumberMonday(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 2)); - return n ? (d.W = +n[0], i + n[0].length) : -1; - } - - function parseFullYear(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 4)); - return n ? (d.y = +n[0], i + n[0].length) : -1; - } - - function parseYear(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 2)); - return n ? (d.y = +n[0] + (+n[0] > 68 ? 1900 : 2000), i + n[0].length) : -1; - } - - function parseZone(d, string, i) { - var n = /^(Z)|([+-]\d\d)(?::?(\d\d))?/.exec(string.slice(i, i + 6)); - return n ? (d.Z = n[1] ? 0 : -(n[2] + (n[3] || "00")), i + n[0].length) : -1; - } - - function parseQuarter(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 1)); - return n ? (d.q = n[0] * 3 - 3, i + n[0].length) : -1; - } - - function parseMonthNumber(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 2)); - return n ? (d.m = n[0] - 1, i + n[0].length) : -1; - } - - function parseDayOfMonth(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 2)); - return n ? (d.d = +n[0], i + n[0].length) : -1; - } - - function parseDayOfYear(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 3)); - return n ? (d.m = 0, d.d = +n[0], i + n[0].length) : -1; - } - - function parseHour24(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 2)); - return n ? (d.H = +n[0], i + n[0].length) : -1; - } - - function parseMinutes(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 2)); - return n ? (d.M = +n[0], i + n[0].length) : -1; - } - - function parseSeconds(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 2)); - return n ? (d.S = +n[0], i + n[0].length) : -1; - } - - function parseMilliseconds(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 3)); - return n ? (d.L = +n[0], i + n[0].length) : -1; - } - - function parseMicroseconds(d, string, i) { - var n = numberRe.exec(string.slice(i, i + 6)); - return n ? (d.L = Math.floor(n[0] / 1000), i + n[0].length) : -1; - } - - function parseLiteralPercent(d, string, i) { - var n = percentRe.exec(string.slice(i, i + 1)); - return n ? i + n[0].length : -1; - } - - function parseUnixTimestamp(d, string, i) { - var n = numberRe.exec(string.slice(i)); - return n ? (d.Q = +n[0], i + n[0].length) : -1; - } - - function parseUnixTimestampSeconds(d, string, i) { - var n = numberRe.exec(string.slice(i)); - return n ? (d.s = +n[0], i + n[0].length) : -1; - } - - function formatDayOfMonth(d, p) { - return pad$1(d.getDate(), p, 2); - } - - function formatHour24(d, p) { - return pad$1(d.getHours(), p, 2); - } - - function formatHour12(d, p) { - return pad$1(d.getHours() % 12 || 12, p, 2); - } - - function formatDayOfYear(d, p) { - return pad$1(1 + day.count(year(d), d), p, 3); - } - - function formatMilliseconds(d, p) { - return pad$1(d.getMilliseconds(), p, 3); - } - - function formatMicroseconds(d, p) { - return formatMilliseconds(d, p) + "000"; - } - - function formatMonthNumber(d, p) { - return pad$1(d.getMonth() + 1, p, 2); - } - - function formatMinutes(d, p) { - return pad$1(d.getMinutes(), p, 2); - } - - function formatSeconds(d, p) { - return pad$1(d.getSeconds(), p, 2); - } - - function formatWeekdayNumberMonday(d) { - var day = d.getDay(); - return day === 0 ? 7 : day; - } - - function formatWeekNumberSunday(d, p) { - return pad$1(sunday.count(year(d) - 1, d), p, 2); - } - - function formatWeekNumberISO(d, p) { - var day = d.getDay(); - d = (day >= 4 || day === 0) ? thursday(d) : thursday.ceil(d); - return pad$1(thursday.count(year(d), d) + (year(d).getDay() === 4), p, 2); - } - - function formatWeekdayNumberSunday(d) { - return d.getDay(); - } - - function formatWeekNumberMonday(d, p) { - return pad$1(monday.count(year(d) - 1, d), p, 2); - } - - function formatYear$1(d, p) { - return pad$1(d.getFullYear() % 100, p, 2); - } - - function formatFullYear(d, p) { - return pad$1(d.getFullYear() % 10000, p, 4); - } - - function formatZone(d) { - var z = d.getTimezoneOffset(); - return (z > 0 ? "-" : (z *= -1, "+")) - + pad$1(z / 60 | 0, "0", 2) - + pad$1(z % 60, "0", 2); - } - - function formatUTCDayOfMonth(d, p) { - return pad$1(d.getUTCDate(), p, 2); - } - - function formatUTCHour24(d, p) { - return pad$1(d.getUTCHours(), p, 2); - } - - function formatUTCHour12(d, p) { - return pad$1(d.getUTCHours() % 12 || 12, p, 2); - } - - function formatUTCDayOfYear(d, p) { - return pad$1(1 + utcDay.count(utcYear(d), d), p, 3); - } - - function formatUTCMilliseconds(d, p) { - return pad$1(d.getUTCMilliseconds(), p, 3); - } - - function formatUTCMicroseconds(d, p) { - return formatUTCMilliseconds(d, p) + "000"; - } - - function formatUTCMonthNumber(d, p) { - return pad$1(d.getUTCMonth() + 1, p, 2); - } - - function formatUTCMinutes(d, p) { - return pad$1(d.getUTCMinutes(), p, 2); - } - - function formatUTCSeconds(d, p) { - return pad$1(d.getUTCSeconds(), p, 2); - } - - function formatUTCWeekdayNumberMonday(d) { - var dow = d.getUTCDay(); - return dow === 0 ? 7 : dow; - } - - function formatUTCWeekNumberSunday(d, p) { - return pad$1(utcSunday.count(utcYear(d) - 1, d), p, 2); - } - - function formatUTCWeekNumberISO(d, p) { - var day = d.getUTCDay(); - d = (day >= 4 || day === 0) ? utcThursday(d) : utcThursday.ceil(d); - return pad$1(utcThursday.count(utcYear(d), d) + (utcYear(d).getUTCDay() === 4), p, 2); - } - - function formatUTCWeekdayNumberSunday(d) { - return d.getUTCDay(); - } - - function formatUTCWeekNumberMonday(d, p) { - return pad$1(utcMonday.count(utcYear(d) - 1, d), p, 2); - } - - function formatUTCYear(d, p) { - return pad$1(d.getUTCFullYear() % 100, p, 2); - } - - function formatUTCFullYear(d, p) { - return pad$1(d.getUTCFullYear() % 10000, p, 4); - } - - function formatUTCZone() { - return "+0000"; - } - - function formatLiteralPercent() { - return "%"; - } - - function formatUnixTimestamp(d) { - return +d; - } - - function formatUnixTimestampSeconds(d) { - return Math.floor(+d / 1000); - } - - var locale$1; - var timeFormat; - var timeParse; - var utcFormat; - var utcParse; - - defaultLocale$1({ - dateTime: "%x, %X", - date: "%-m/%-d/%Y", - time: "%-I:%M:%S %p", - periods: ["AM", "PM"], - days: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"], - shortDays: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"], - months: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"], - shortMonths: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"] - }); - - function defaultLocale$1(definition) { - locale$1 = formatLocale$1(definition); - timeFormat = locale$1.format; - timeParse = locale$1.parse; - utcFormat = locale$1.utcFormat; - utcParse = locale$1.utcParse; - return locale$1; - } - - var isoSpecifier = "%Y-%m-%dT%H:%M:%S.%LZ"; - - function formatIsoNative(date) { - return date.toISOString(); - } - - var formatIso = Date.prototype.toISOString - ? formatIsoNative - : utcFormat(isoSpecifier); - - function parseIsoNative(string) { - var date = new Date(string); - return isNaN(date) ? null : date; - } - - var parseIso = +new Date("2000-01-01T00:00:00.000Z") - ? parseIsoNative - : utcParse(isoSpecifier); - - var durationSecond$1 = 1000, - durationMinute$1 = durationSecond$1 * 60, - durationHour$1 = durationMinute$1 * 60, - durationDay$1 = durationHour$1 * 24, - durationWeek$1 = durationDay$1 * 7, - durationMonth = durationDay$1 * 30, - durationYear = durationDay$1 * 365; - - function date$1(t) { - return new Date(t); - } - - function number$3(t) { - return t instanceof Date ? +t : +new Date(+t); - } - - function calendar(year, month, week, day, hour, minute, second, millisecond, format) { - var scale = continuous(identity$6, identity$6), - invert = scale.invert, - domain = scale.domain; - - var formatMillisecond = format(".%L"), - formatSecond = format(":%S"), - formatMinute = format("%I:%M"), - formatHour = format("%I %p"), - formatDay = format("%a %d"), - formatWeek = format("%b %d"), - formatMonth = format("%B"), - formatYear = format("%Y"); - - var tickIntervals = [ - [second, 1, durationSecond$1], - [second, 5, 5 * durationSecond$1], - [second, 15, 15 * durationSecond$1], - [second, 30, 30 * durationSecond$1], - [minute, 1, durationMinute$1], - [minute, 5, 5 * durationMinute$1], - [minute, 15, 15 * durationMinute$1], - [minute, 30, 30 * durationMinute$1], - [ hour, 1, durationHour$1 ], - [ hour, 3, 3 * durationHour$1 ], - [ hour, 6, 6 * durationHour$1 ], - [ hour, 12, 12 * durationHour$1 ], - [ day, 1, durationDay$1 ], - [ day, 2, 2 * durationDay$1 ], - [ week, 1, durationWeek$1 ], - [ month, 1, durationMonth ], - [ month, 3, 3 * durationMonth ], - [ year, 1, durationYear ] - ]; - - function tickFormat(date) { - return (second(date) < date ? formatMillisecond - : minute(date) < date ? formatSecond - : hour(date) < date ? formatMinute - : day(date) < date ? formatHour - : month(date) < date ? (week(date) < date ? formatDay : formatWeek) - : year(date) < date ? formatMonth - : formatYear)(date); - } - - function tickInterval(interval, start, stop, step) { - if (interval == null) interval = 10; - - // If a desired tick count is specified, pick a reasonable tick interval - // based on the extent of the domain and a rough estimate of tick size. - // Otherwise, assume interval is already a time interval and use it. - if (typeof interval === "number") { - var target = Math.abs(stop - start) / interval, - i = bisector(function(i) { return i[2]; }).right(tickIntervals, target); - if (i === tickIntervals.length) { - step = tickStep(start / durationYear, stop / durationYear, interval); - interval = year; - } else if (i) { - i = tickIntervals[target / tickIntervals[i - 1][2] < tickIntervals[i][2] / target ? i - 1 : i]; - step = i[1]; - interval = i[0]; - } else { - step = Math.max(tickStep(start, stop, interval), 1); - interval = millisecond; - } - } - - return step == null ? interval : interval.every(step); - } - - scale.invert = function(y) { - return new Date(invert(y)); - }; - - scale.domain = function(_) { - return arguments.length ? domain(map$3.call(_, number$3)) : domain().map(date$1); - }; - - scale.ticks = function(interval, step) { - var d = domain(), - t0 = d[0], - t1 = d[d.length - 1], - r = t1 < t0, - t; - if (r) t = t0, t0 = t1, t1 = t; - t = tickInterval(interval, t0, t1, step); - t = t ? t.range(t0, t1 + 1) : []; // inclusive stop - return r ? t.reverse() : t; - }; - - scale.tickFormat = function(count, specifier) { - return specifier == null ? tickFormat : format(specifier); - }; - - scale.nice = function(interval, step) { - var d = domain(); - return (interval = tickInterval(interval, d[0], d[d.length - 1], step)) - ? domain(nice(d, interval)) - : scale; - }; - - scale.copy = function() { - return copy(scale, calendar(year, month, week, day, hour, minute, second, millisecond, format)); - }; - - return scale; - } - - function time() { - return initRange.apply(calendar(year, month, sunday, day, hour, minute, second, millisecond, timeFormat).domain([new Date(2000, 0, 1), new Date(2000, 0, 2)]), arguments); - } - - function utcTime() { - return initRange.apply(calendar(utcYear, utcMonth, utcSunday, utcDay, utcHour, utcMinute, second, millisecond, utcFormat).domain([Date.UTC(2000, 0, 1), Date.UTC(2000, 0, 2)]), arguments); - } - - function transformer$2() { - var x0 = 0, - x1 = 1, - t0, - t1, - k10, - transform, - interpolator = identity$6, - clamp = false, - unknown; - - function scale(x) { - return isNaN(x = +x) ? unknown : interpolator(k10 === 0 ? 0.5 : (x = (transform(x) - t0) * k10, clamp ? Math.max(0, Math.min(1, x)) : x)); - } - - scale.domain = function(_) { - return arguments.length ? (t0 = transform(x0 = +_[0]), t1 = transform(x1 = +_[1]), k10 = t0 === t1 ? 0 : 1 / (t1 - t0), scale) : [x0, x1]; - }; - - scale.clamp = function(_) { - return arguments.length ? (clamp = !!_, scale) : clamp; - }; - - scale.interpolator = function(_) { - return arguments.length ? (interpolator = _, scale) : interpolator; - }; - - scale.unknown = function(_) { - return arguments.length ? (unknown = _, scale) : unknown; - }; - - return function(t) { - transform = t, t0 = t(x0), t1 = t(x1), k10 = t0 === t1 ? 0 : 1 / (t1 - t0); - return scale; - }; - } - - function copy$1(source, target) { - return target - .domain(source.domain()) - .interpolator(source.interpolator()) - .clamp(source.clamp()) - .unknown(source.unknown()); - } - - function sequential() { - var scale = linearish(transformer$2()(identity$6)); - - scale.copy = function() { - return copy$1(scale, sequential()); - }; - - return initInterpolator.apply(scale, arguments); - } - - function sequentialLog() { - var scale = loggish(transformer$2()).domain([1, 10]); - - scale.copy = function() { - return copy$1(scale, sequentialLog()).base(scale.base()); - }; - - return initInterpolator.apply(scale, arguments); - } - - function sequentialSymlog() { - var scale = symlogish(transformer$2()); - - scale.copy = function() { - return copy$1(scale, sequentialSymlog()).constant(scale.constant()); - }; - - return initInterpolator.apply(scale, arguments); - } - - function sequentialPow() { - var scale = powish(transformer$2()); - - scale.copy = function() { - return copy$1(scale, sequentialPow()).exponent(scale.exponent()); - }; - - return initInterpolator.apply(scale, arguments); - } - - function sequentialSqrt() { - return sequentialPow.apply(null, arguments).exponent(0.5); - } - - function sequentialQuantile() { - var domain = [], - interpolator = identity$6; - - function scale(x) { - if (!isNaN(x = +x)) return interpolator((bisectRight(domain, x) - 1) / (domain.length - 1)); - } - - scale.domain = function(_) { - if (!arguments.length) return domain.slice(); - domain = []; - for (var i = 0, n = _.length, d; i < n; ++i) if (d = _[i], d != null && !isNaN(d = +d)) domain.push(d); - domain.sort(ascending); - return scale; - }; - - scale.interpolator = function(_) { - return arguments.length ? (interpolator = _, scale) : interpolator; - }; - - scale.copy = function() { - return sequentialQuantile(interpolator).domain(domain); - }; - - return initInterpolator.apply(scale, arguments); - } - - function transformer$3() { - var x0 = 0, - x1 = 0.5, - x2 = 1, - t0, - t1, - t2, - k10, - k21, - interpolator = identity$6, - transform, - clamp = false, - unknown; - - function scale(x) { - return isNaN(x = +x) ? unknown : (x = 0.5 + ((x = +transform(x)) - t1) * (x < t1 ? k10 : k21), interpolator(clamp ? Math.max(0, Math.min(1, x)) : x)); - } - - scale.domain = function(_) { - return arguments.length ? (t0 = transform(x0 = +_[0]), t1 = transform(x1 = +_[1]), t2 = transform(x2 = +_[2]), k10 = t0 === t1 ? 0 : 0.5 / (t1 - t0), k21 = t1 === t2 ? 0 : 0.5 / (t2 - t1), scale) : [x0, x1, x2]; - }; - - scale.clamp = function(_) { - return arguments.length ? (clamp = !!_, scale) : clamp; - }; - - scale.interpolator = function(_) { - return arguments.length ? (interpolator = _, scale) : interpolator; - }; - - scale.unknown = function(_) { - return arguments.length ? (unknown = _, scale) : unknown; - }; - - return function(t) { - transform = t, t0 = t(x0), t1 = t(x1), t2 = t(x2), k10 = t0 === t1 ? 0 : 0.5 / (t1 - t0), k21 = t1 === t2 ? 0 : 0.5 / (t2 - t1); - return scale; - }; - } - - function diverging() { - var scale = linearish(transformer$3()(identity$6)); - - scale.copy = function() { - return copy$1(scale, diverging()); - }; - - return initInterpolator.apply(scale, arguments); - } - - function divergingLog() { - var scale = loggish(transformer$3()).domain([0.1, 1, 10]); - - scale.copy = function() { - return copy$1(scale, divergingLog()).base(scale.base()); - }; - - return initInterpolator.apply(scale, arguments); - } - - function divergingSymlog() { - var scale = symlogish(transformer$3()); - - scale.copy = function() { - return copy$1(scale, divergingSymlog()).constant(scale.constant()); - }; - - return initInterpolator.apply(scale, arguments); - } - - function divergingPow() { - var scale = powish(transformer$3()); - - scale.copy = function() { - return copy$1(scale, divergingPow()).exponent(scale.exponent()); - }; - - return initInterpolator.apply(scale, arguments); - } - - function divergingSqrt() { - return divergingPow.apply(null, arguments).exponent(0.5); - } - - function colors(specifier) { - var n = specifier.length / 6 | 0, colors = new Array(n), i = 0; - while (i < n) colors[i] = "#" + specifier.slice(i * 6, ++i * 6); - return colors; - } - - var category10 = colors("1f77b4ff7f0e2ca02cd627289467bd8c564be377c27f7f7fbcbd2217becf"); - - var Accent = colors("7fc97fbeaed4fdc086ffff99386cb0f0027fbf5b17666666"); - - var Dark2 = colors("1b9e77d95f027570b3e7298a66a61ee6ab02a6761d666666"); - - var Paired = colors("a6cee31f78b4b2df8a33a02cfb9a99e31a1cfdbf6fff7f00cab2d66a3d9affff99b15928"); - - var Pastel1 = colors("fbb4aeb3cde3ccebc5decbe4fed9a6ffffcce5d8bdfddaecf2f2f2"); - - var Pastel2 = colors("b3e2cdfdcdaccbd5e8f4cae4e6f5c9fff2aef1e2cccccccc"); - - var Set1 = colors("e41a1c377eb84daf4a984ea3ff7f00ffff33a65628f781bf999999"); - - var Set2 = colors("66c2a5fc8d628da0cbe78ac3a6d854ffd92fe5c494b3b3b3"); - - var Set3 = colors("8dd3c7ffffb3bebadafb807280b1d3fdb462b3de69fccde5d9d9d9bc80bdccebc5ffed6f"); - - var Tableau10 = colors("4e79a7f28e2ce1575976b7b259a14fedc949af7aa1ff9da79c755fbab0ab"); - - function ramp(scheme) { - return rgbBasis(scheme[scheme.length - 1]); - } - - var scheme = new Array(3).concat( - "d8b365f5f5f55ab4ac", - "a6611adfc27d80cdc1018571", - "a6611adfc27df5f5f580cdc1018571", - "8c510ad8b365f6e8c3c7eae55ab4ac01665e", - "8c510ad8b365f6e8c3f5f5f5c7eae55ab4ac01665e", - "8c510abf812ddfc27df6e8c3c7eae580cdc135978f01665e", - "8c510abf812ddfc27df6e8c3f5f5f5c7eae580cdc135978f01665e", - "5430058c510abf812ddfc27df6e8c3c7eae580cdc135978f01665e003c30", - "5430058c510abf812ddfc27df6e8c3f5f5f5c7eae580cdc135978f01665e003c30" - ).map(colors); - - var BrBG = ramp(scheme); - - var scheme$1 = new Array(3).concat( - "af8dc3f7f7f77fbf7b", - "7b3294c2a5cfa6dba0008837", - "7b3294c2a5cff7f7f7a6dba0008837", - "762a83af8dc3e7d4e8d9f0d37fbf7b1b7837", - "762a83af8dc3e7d4e8f7f7f7d9f0d37fbf7b1b7837", - "762a839970abc2a5cfe7d4e8d9f0d3a6dba05aae611b7837", - "762a839970abc2a5cfe7d4e8f7f7f7d9f0d3a6dba05aae611b7837", - "40004b762a839970abc2a5cfe7d4e8d9f0d3a6dba05aae611b783700441b", - "40004b762a839970abc2a5cfe7d4e8f7f7f7d9f0d3a6dba05aae611b783700441b" - ).map(colors); - - var PRGn = ramp(scheme$1); - - var scheme$2 = new Array(3).concat( - "e9a3c9f7f7f7a1d76a", - "d01c8bf1b6dab8e1864dac26", - "d01c8bf1b6daf7f7f7b8e1864dac26", - "c51b7de9a3c9fde0efe6f5d0a1d76a4d9221", - "c51b7de9a3c9fde0eff7f7f7e6f5d0a1d76a4d9221", - "c51b7dde77aef1b6dafde0efe6f5d0b8e1867fbc414d9221", - "c51b7dde77aef1b6dafde0eff7f7f7e6f5d0b8e1867fbc414d9221", - "8e0152c51b7dde77aef1b6dafde0efe6f5d0b8e1867fbc414d9221276419", - "8e0152c51b7dde77aef1b6dafde0eff7f7f7e6f5d0b8e1867fbc414d9221276419" - ).map(colors); - - var PiYG = ramp(scheme$2); - - var scheme$3 = new Array(3).concat( - "998ec3f7f7f7f1a340", - "5e3c99b2abd2fdb863e66101", - "5e3c99b2abd2f7f7f7fdb863e66101", - "542788998ec3d8daebfee0b6f1a340b35806", - "542788998ec3d8daebf7f7f7fee0b6f1a340b35806", - "5427888073acb2abd2d8daebfee0b6fdb863e08214b35806", - "5427888073acb2abd2d8daebf7f7f7fee0b6fdb863e08214b35806", - "2d004b5427888073acb2abd2d8daebfee0b6fdb863e08214b358067f3b08", - "2d004b5427888073acb2abd2d8daebf7f7f7fee0b6fdb863e08214b358067f3b08" - ).map(colors); - - var PuOr = ramp(scheme$3); - - var scheme$4 = new Array(3).concat( - "ef8a62f7f7f767a9cf", - "ca0020f4a58292c5de0571b0", - "ca0020f4a582f7f7f792c5de0571b0", - "b2182bef8a62fddbc7d1e5f067a9cf2166ac", - "b2182bef8a62fddbc7f7f7f7d1e5f067a9cf2166ac", - "b2182bd6604df4a582fddbc7d1e5f092c5de4393c32166ac", - "b2182bd6604df4a582fddbc7f7f7f7d1e5f092c5de4393c32166ac", - "67001fb2182bd6604df4a582fddbc7d1e5f092c5de4393c32166ac053061", - "67001fb2182bd6604df4a582fddbc7f7f7f7d1e5f092c5de4393c32166ac053061" - ).map(colors); - - var RdBu = ramp(scheme$4); - - var scheme$5 = new Array(3).concat( - "ef8a62ffffff999999", - "ca0020f4a582bababa404040", - "ca0020f4a582ffffffbababa404040", - "b2182bef8a62fddbc7e0e0e09999994d4d4d", - "b2182bef8a62fddbc7ffffffe0e0e09999994d4d4d", - "b2182bd6604df4a582fddbc7e0e0e0bababa8787874d4d4d", - "b2182bd6604df4a582fddbc7ffffffe0e0e0bababa8787874d4d4d", - "67001fb2182bd6604df4a582fddbc7e0e0e0bababa8787874d4d4d1a1a1a", - "67001fb2182bd6604df4a582fddbc7ffffffe0e0e0bababa8787874d4d4d1a1a1a" - ).map(colors); - - var RdGy = ramp(scheme$5); - - var scheme$6 = new Array(3).concat( - "fc8d59ffffbf91bfdb", - "d7191cfdae61abd9e92c7bb6", - "d7191cfdae61ffffbfabd9e92c7bb6", - "d73027fc8d59fee090e0f3f891bfdb4575b4", - "d73027fc8d59fee090ffffbfe0f3f891bfdb4575b4", - "d73027f46d43fdae61fee090e0f3f8abd9e974add14575b4", - "d73027f46d43fdae61fee090ffffbfe0f3f8abd9e974add14575b4", - "a50026d73027f46d43fdae61fee090e0f3f8abd9e974add14575b4313695", - "a50026d73027f46d43fdae61fee090ffffbfe0f3f8abd9e974add14575b4313695" - ).map(colors); - - var RdYlBu = ramp(scheme$6); - - var scheme$7 = new Array(3).concat( - "fc8d59ffffbf91cf60", - "d7191cfdae61a6d96a1a9641", - "d7191cfdae61ffffbfa6d96a1a9641", - "d73027fc8d59fee08bd9ef8b91cf601a9850", - "d73027fc8d59fee08bffffbfd9ef8b91cf601a9850", - "d73027f46d43fdae61fee08bd9ef8ba6d96a66bd631a9850", - "d73027f46d43fdae61fee08bffffbfd9ef8ba6d96a66bd631a9850", - "a50026d73027f46d43fdae61fee08bd9ef8ba6d96a66bd631a9850006837", - "a50026d73027f46d43fdae61fee08bffffbfd9ef8ba6d96a66bd631a9850006837" - ).map(colors); - - var RdYlGn = ramp(scheme$7); - - var scheme$8 = new Array(3).concat( - "fc8d59ffffbf99d594", - "d7191cfdae61abdda42b83ba", - "d7191cfdae61ffffbfabdda42b83ba", - "d53e4ffc8d59fee08be6f59899d5943288bd", - "d53e4ffc8d59fee08bffffbfe6f59899d5943288bd", - "d53e4ff46d43fdae61fee08be6f598abdda466c2a53288bd", - "d53e4ff46d43fdae61fee08bffffbfe6f598abdda466c2a53288bd", - "9e0142d53e4ff46d43fdae61fee08be6f598abdda466c2a53288bd5e4fa2", - "9e0142d53e4ff46d43fdae61fee08bffffbfe6f598abdda466c2a53288bd5e4fa2" - ).map(colors); - - var Spectral = ramp(scheme$8); - - var scheme$9 = new Array(3).concat( - "e5f5f999d8c92ca25f", - "edf8fbb2e2e266c2a4238b45", - "edf8fbb2e2e266c2a42ca25f006d2c", - "edf8fbccece699d8c966c2a42ca25f006d2c", - "edf8fbccece699d8c966c2a441ae76238b45005824", - "f7fcfde5f5f9ccece699d8c966c2a441ae76238b45005824", - "f7fcfde5f5f9ccece699d8c966c2a441ae76238b45006d2c00441b" - ).map(colors); - - var BuGn = ramp(scheme$9); - - var scheme$a = new Array(3).concat( - "e0ecf49ebcda8856a7", - "edf8fbb3cde38c96c688419d", - "edf8fbb3cde38c96c68856a7810f7c", - "edf8fbbfd3e69ebcda8c96c68856a7810f7c", - "edf8fbbfd3e69ebcda8c96c68c6bb188419d6e016b", - "f7fcfde0ecf4bfd3e69ebcda8c96c68c6bb188419d6e016b", - "f7fcfde0ecf4bfd3e69ebcda8c96c68c6bb188419d810f7c4d004b" - ).map(colors); - - var BuPu = ramp(scheme$a); - - var scheme$b = new Array(3).concat( - "e0f3dba8ddb543a2ca", - "f0f9e8bae4bc7bccc42b8cbe", - "f0f9e8bae4bc7bccc443a2ca0868ac", - "f0f9e8ccebc5a8ddb57bccc443a2ca0868ac", - "f0f9e8ccebc5a8ddb57bccc44eb3d32b8cbe08589e", - "f7fcf0e0f3dbccebc5a8ddb57bccc44eb3d32b8cbe08589e", - "f7fcf0e0f3dbccebc5a8ddb57bccc44eb3d32b8cbe0868ac084081" - ).map(colors); - - var GnBu = ramp(scheme$b); - - var scheme$c = new Array(3).concat( - "fee8c8fdbb84e34a33", - "fef0d9fdcc8afc8d59d7301f", - "fef0d9fdcc8afc8d59e34a33b30000", - "fef0d9fdd49efdbb84fc8d59e34a33b30000", - "fef0d9fdd49efdbb84fc8d59ef6548d7301f990000", - "fff7ecfee8c8fdd49efdbb84fc8d59ef6548d7301f990000", - "fff7ecfee8c8fdd49efdbb84fc8d59ef6548d7301fb300007f0000" - ).map(colors); - - var OrRd = ramp(scheme$c); - - var scheme$d = new Array(3).concat( - "ece2f0a6bddb1c9099", - "f6eff7bdc9e167a9cf02818a", - "f6eff7bdc9e167a9cf1c9099016c59", - "f6eff7d0d1e6a6bddb67a9cf1c9099016c59", - "f6eff7d0d1e6a6bddb67a9cf3690c002818a016450", - "fff7fbece2f0d0d1e6a6bddb67a9cf3690c002818a016450", - "fff7fbece2f0d0d1e6a6bddb67a9cf3690c002818a016c59014636" - ).map(colors); - - var PuBuGn = ramp(scheme$d); - - var scheme$e = new Array(3).concat( - "ece7f2a6bddb2b8cbe", - "f1eef6bdc9e174a9cf0570b0", - "f1eef6bdc9e174a9cf2b8cbe045a8d", - "f1eef6d0d1e6a6bddb74a9cf2b8cbe045a8d", - "f1eef6d0d1e6a6bddb74a9cf3690c00570b0034e7b", - "fff7fbece7f2d0d1e6a6bddb74a9cf3690c00570b0034e7b", - "fff7fbece7f2d0d1e6a6bddb74a9cf3690c00570b0045a8d023858" - ).map(colors); - - var PuBu = ramp(scheme$e); - - var scheme$f = new Array(3).concat( - "e7e1efc994c7dd1c77", - "f1eef6d7b5d8df65b0ce1256", - "f1eef6d7b5d8df65b0dd1c77980043", - "f1eef6d4b9dac994c7df65b0dd1c77980043", - "f1eef6d4b9dac994c7df65b0e7298ace125691003f", - "f7f4f9e7e1efd4b9dac994c7df65b0e7298ace125691003f", - "f7f4f9e7e1efd4b9dac994c7df65b0e7298ace125698004367001f" - ).map(colors); - - var PuRd = ramp(scheme$f); - - var scheme$g = new Array(3).concat( - "fde0ddfa9fb5c51b8a", - "feebe2fbb4b9f768a1ae017e", - "feebe2fbb4b9f768a1c51b8a7a0177", - "feebe2fcc5c0fa9fb5f768a1c51b8a7a0177", - "feebe2fcc5c0fa9fb5f768a1dd3497ae017e7a0177", - "fff7f3fde0ddfcc5c0fa9fb5f768a1dd3497ae017e7a0177", - "fff7f3fde0ddfcc5c0fa9fb5f768a1dd3497ae017e7a017749006a" - ).map(colors); - - var RdPu = ramp(scheme$g); - - var scheme$h = new Array(3).concat( - "edf8b17fcdbb2c7fb8", - "ffffcca1dab441b6c4225ea8", - "ffffcca1dab441b6c42c7fb8253494", - "ffffccc7e9b47fcdbb41b6c42c7fb8253494", - "ffffccc7e9b47fcdbb41b6c41d91c0225ea80c2c84", - "ffffd9edf8b1c7e9b47fcdbb41b6c41d91c0225ea80c2c84", - "ffffd9edf8b1c7e9b47fcdbb41b6c41d91c0225ea8253494081d58" - ).map(colors); - - var YlGnBu = ramp(scheme$h); - - var scheme$i = new Array(3).concat( - "f7fcb9addd8e31a354", - "ffffccc2e69978c679238443", - "ffffccc2e69978c67931a354006837", - "ffffccd9f0a3addd8e78c67931a354006837", - "ffffccd9f0a3addd8e78c67941ab5d238443005a32", - "ffffe5f7fcb9d9f0a3addd8e78c67941ab5d238443005a32", - "ffffe5f7fcb9d9f0a3addd8e78c67941ab5d238443006837004529" - ).map(colors); - - var YlGn = ramp(scheme$i); - - var scheme$j = new Array(3).concat( - "fff7bcfec44fd95f0e", - "ffffd4fed98efe9929cc4c02", - "ffffd4fed98efe9929d95f0e993404", - "ffffd4fee391fec44ffe9929d95f0e993404", - "ffffd4fee391fec44ffe9929ec7014cc4c028c2d04", - "ffffe5fff7bcfee391fec44ffe9929ec7014cc4c028c2d04", - "ffffe5fff7bcfee391fec44ffe9929ec7014cc4c02993404662506" - ).map(colors); - - var YlOrBr = ramp(scheme$j); - - var scheme$k = new Array(3).concat( - "ffeda0feb24cf03b20", - "ffffb2fecc5cfd8d3ce31a1c", - "ffffb2fecc5cfd8d3cf03b20bd0026", - "ffffb2fed976feb24cfd8d3cf03b20bd0026", - "ffffb2fed976feb24cfd8d3cfc4e2ae31a1cb10026", - "ffffccffeda0fed976feb24cfd8d3cfc4e2ae31a1cb10026", - "ffffccffeda0fed976feb24cfd8d3cfc4e2ae31a1cbd0026800026" - ).map(colors); - - var YlOrRd = ramp(scheme$k); - - var scheme$l = new Array(3).concat( - "deebf79ecae13182bd", - "eff3ffbdd7e76baed62171b5", - "eff3ffbdd7e76baed63182bd08519c", - "eff3ffc6dbef9ecae16baed63182bd08519c", - "eff3ffc6dbef9ecae16baed64292c62171b5084594", - "f7fbffdeebf7c6dbef9ecae16baed64292c62171b5084594", - "f7fbffdeebf7c6dbef9ecae16baed64292c62171b508519c08306b" - ).map(colors); - - var Blues = ramp(scheme$l); - - var scheme$m = new Array(3).concat( - "e5f5e0a1d99b31a354", - "edf8e9bae4b374c476238b45", - "edf8e9bae4b374c47631a354006d2c", - "edf8e9c7e9c0a1d99b74c47631a354006d2c", - "edf8e9c7e9c0a1d99b74c47641ab5d238b45005a32", - "f7fcf5e5f5e0c7e9c0a1d99b74c47641ab5d238b45005a32", - "f7fcf5e5f5e0c7e9c0a1d99b74c47641ab5d238b45006d2c00441b" - ).map(colors); - - var Greens = ramp(scheme$m); - - var scheme$n = new Array(3).concat( - "f0f0f0bdbdbd636363", - "f7f7f7cccccc969696525252", - "f7f7f7cccccc969696636363252525", - "f7f7f7d9d9d9bdbdbd969696636363252525", - "f7f7f7d9d9d9bdbdbd969696737373525252252525", - "fffffff0f0f0d9d9d9bdbdbd969696737373525252252525", - "fffffff0f0f0d9d9d9bdbdbd969696737373525252252525000000" - ).map(colors); - - var Greys = ramp(scheme$n); - - var scheme$o = new Array(3).concat( - "efedf5bcbddc756bb1", - "f2f0f7cbc9e29e9ac86a51a3", - "f2f0f7cbc9e29e9ac8756bb154278f", - "f2f0f7dadaebbcbddc9e9ac8756bb154278f", - "f2f0f7dadaebbcbddc9e9ac8807dba6a51a34a1486", - "fcfbfdefedf5dadaebbcbddc9e9ac8807dba6a51a34a1486", - "fcfbfdefedf5dadaebbcbddc9e9ac8807dba6a51a354278f3f007d" - ).map(colors); - - var Purples = ramp(scheme$o); - - var scheme$p = new Array(3).concat( - "fee0d2fc9272de2d26", - "fee5d9fcae91fb6a4acb181d", - "fee5d9fcae91fb6a4ade2d26a50f15", - "fee5d9fcbba1fc9272fb6a4ade2d26a50f15", - "fee5d9fcbba1fc9272fb6a4aef3b2ccb181d99000d", - "fff5f0fee0d2fcbba1fc9272fb6a4aef3b2ccb181d99000d", - "fff5f0fee0d2fcbba1fc9272fb6a4aef3b2ccb181da50f1567000d" - ).map(colors); - - var Reds = ramp(scheme$p); - - var scheme$q = new Array(3).concat( - "fee6cefdae6be6550d", - "feeddefdbe85fd8d3cd94701", - "feeddefdbe85fd8d3ce6550da63603", - "feeddefdd0a2fdae6bfd8d3ce6550da63603", - "feeddefdd0a2fdae6bfd8d3cf16913d948018c2d04", - "fff5ebfee6cefdd0a2fdae6bfd8d3cf16913d948018c2d04", - "fff5ebfee6cefdd0a2fdae6bfd8d3cf16913d94801a636037f2704" - ).map(colors); - - var Oranges = ramp(scheme$q); - - function cividis(t) { - t = Math.max(0, Math.min(1, t)); - return "rgb(" - + Math.max(0, Math.min(255, Math.round(-4.54 - t * (35.34 - t * (2381.73 - t * (6402.7 - t * (7024.72 - t * 2710.57))))))) + ", " - + Math.max(0, Math.min(255, Math.round(32.49 + t * (170.73 + t * (52.82 - t * (131.46 - t * (176.58 - t * 67.37))))))) + ", " - + Math.max(0, Math.min(255, Math.round(81.24 + t * (442.36 - t * (2482.43 - t * (6167.24 - t * (6614.94 - t * 2475.67))))))) - + ")"; - } - - var cubehelix$3 = cubehelixLong(cubehelix(300, 0.5, 0.0), cubehelix(-240, 0.5, 1.0)); - - var warm = cubehelixLong(cubehelix(-100, 0.75, 0.35), cubehelix(80, 1.50, 0.8)); - - var cool = cubehelixLong(cubehelix(260, 0.75, 0.35), cubehelix(80, 1.50, 0.8)); - - var c = cubehelix(); - - function rainbow(t) { - if (t < 0 || t > 1) t -= Math.floor(t); - var ts = Math.abs(t - 0.5); - c.h = 360 * t - 100; - c.s = 1.5 - 1.5 * ts; - c.l = 0.8 - 0.9 * ts; - return c + ""; - } - - var c$1 = rgb(), - pi_1_3 = Math.PI / 3, - pi_2_3 = Math.PI * 2 / 3; - - function sinebow(t) { - var x; - t = (0.5 - t) * Math.PI; - c$1.r = 255 * (x = Math.sin(t)) * x; - c$1.g = 255 * (x = Math.sin(t + pi_1_3)) * x; - c$1.b = 255 * (x = Math.sin(t + pi_2_3)) * x; - return c$1 + ""; - } - - function turbo(t) { - t = Math.max(0, Math.min(1, t)); - return "rgb(" - + Math.max(0, Math.min(255, Math.round(34.61 + t * (1172.33 - t * (10793.56 - t * (33300.12 - t * (38394.49 - t * 14825.05))))))) + ", " - + Math.max(0, Math.min(255, Math.round(23.31 + t * (557.33 + t * (1225.33 - t * (3574.96 - t * (1073.77 + t * 707.56))))))) + ", " - + Math.max(0, Math.min(255, Math.round(27.2 + t * (3211.1 - t * (15327.97 - t * (27814 - t * (22569.18 - t * 6838.66))))))) - + ")"; - } - - function ramp$1(range) { - var n = range.length; - return function(t) { - return range[Math.max(0, Math.min(n - 1, Math.floor(t * n)))]; - }; - } - - var viridis = ramp$1(colors("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")); - - var magma = ramp$1(colors("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")); - - var inferno = ramp$1(colors("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")); - - var plasma = ramp$1(colors("0d088710078813078916078a19068c1b068d1d068e20068f2206902406912605912805922a05932c05942e05952f059631059733059735049837049938049a3a049a3c049b3e049c3f049c41049d43039e44039e46039f48039f4903a04b03a14c02a14e02a25002a25102a35302a35502a45601a45801a45901a55b01a55c01a65e01a66001a66100a76300a76400a76600a76700a86900a86a00a86c00a86e00a86f00a87100a87201a87401a87501a87701a87801a87a02a87b02a87d03a87e03a88004a88104a78305a78405a78606a68707a68808a68a09a58b0aa58d0ba58e0ca48f0da4910ea3920fa39410a29511a19613a19814a099159f9a169f9c179e9d189d9e199da01a9ca11b9ba21d9aa31e9aa51f99a62098a72197a82296aa2395ab2494ac2694ad2793ae2892b02991b12a90b22b8fb32c8eb42e8db52f8cb6308bb7318ab83289ba3388bb3488bc3587bd3786be3885bf3984c03a83c13b82c23c81c33d80c43e7fc5407ec6417dc7427cc8437bc9447aca457acb4679cc4778cc4977cd4a76ce4b75cf4c74d04d73d14e72d24f71d35171d45270d5536fd5546ed6556dd7566cd8576bd9586ada5a6ada5b69db5c68dc5d67dd5e66de5f65de6164df6263e06363e16462e26561e26660e3685fe4695ee56a5de56b5de66c5ce76e5be76f5ae87059e97158e97257ea7457eb7556eb7655ec7754ed7953ed7a52ee7b51ef7c51ef7e50f07f4ff0804ef1814df1834cf2844bf3854bf3874af48849f48948f58b47f58c46f68d45f68f44f79044f79143f79342f89441f89540f9973ff9983ef99a3efa9b3dfa9c3cfa9e3bfb9f3afba139fba238fca338fca537fca636fca835fca934fdab33fdac33fdae32fdaf31fdb130fdb22ffdb42ffdb52efeb72dfeb82cfeba2cfebb2bfebd2afebe2afec029fdc229fdc328fdc527fdc627fdc827fdca26fdcb26fccd25fcce25fcd025fcd225fbd324fbd524fbd724fad824fada24f9dc24f9dd25f8df25f8e125f7e225f7e425f6e626f6e826f5e926f5eb27f4ed27f3ee27f3f027f2f227f1f426f1f525f0f724f0f921")); - - function constant$b(x) { - return function constant() { - return x; - }; - } - - var abs$1 = Math.abs; - var atan2$1 = Math.atan2; - var cos$2 = Math.cos; - var max$2 = Math.max; - var min$1 = Math.min; - var sin$2 = Math.sin; - var sqrt$2 = Math.sqrt; - - var epsilon$3 = 1e-12; - var pi$4 = Math.PI; - var halfPi$3 = pi$4 / 2; - var tau$4 = 2 * pi$4; - - function acos$1(x) { - return x > 1 ? 0 : x < -1 ? pi$4 : Math.acos(x); - } - - function asin$1(x) { - return x >= 1 ? halfPi$3 : x <= -1 ? -halfPi$3 : Math.asin(x); - } - - function arcInnerRadius(d) { - return d.innerRadius; - } - - function arcOuterRadius(d) { - return d.outerRadius; - } - - function arcStartAngle(d) { - return d.startAngle; - } - - function arcEndAngle(d) { - return d.endAngle; - } - - function arcPadAngle(d) { - return d && d.padAngle; // Note: optional! - } - - function intersect(x0, y0, x1, y1, x2, y2, x3, y3) { - var x10 = x1 - x0, y10 = y1 - y0, - x32 = x3 - x2, y32 = y3 - y2, - t = y32 * x10 - x32 * y10; - if (t * t < epsilon$3) return; - t = (x32 * (y0 - y2) - y32 * (x0 - x2)) / t; - return [x0 + t * x10, y0 + t * y10]; - } - - // Compute perpendicular offset line of length rc. - // http://mathworld.wolfram.com/Circle-LineIntersection.html - function cornerTangents(x0, y0, x1, y1, r1, rc, cw) { - var x01 = x0 - x1, - y01 = y0 - y1, - lo = (cw ? rc : -rc) / sqrt$2(x01 * x01 + y01 * y01), - ox = lo * y01, - oy = -lo * x01, - x11 = x0 + ox, - y11 = y0 + oy, - x10 = x1 + ox, - y10 = y1 + oy, - x00 = (x11 + x10) / 2, - y00 = (y11 + y10) / 2, - dx = x10 - x11, - dy = y10 - y11, - d2 = dx * dx + dy * dy, - r = r1 - rc, - D = x11 * y10 - x10 * y11, - d = (dy < 0 ? -1 : 1) * sqrt$2(max$2(0, r * r * d2 - D * D)), - cx0 = (D * dy - dx * d) / d2, - cy0 = (-D * dx - dy * d) / d2, - cx1 = (D * dy + dx * d) / d2, - cy1 = (-D * dx + dy * d) / d2, - dx0 = cx0 - x00, - dy0 = cy0 - y00, - dx1 = cx1 - x00, - dy1 = cy1 - y00; - - // Pick the closer of the two intersection points. - // TODO Is there a faster way to determine which intersection to use? - if (dx0 * dx0 + dy0 * dy0 > dx1 * dx1 + dy1 * dy1) cx0 = cx1, cy0 = cy1; - - return { - cx: cx0, - cy: cy0, - x01: -ox, - y01: -oy, - x11: cx0 * (r1 / r - 1), - y11: cy0 * (r1 / r - 1) - }; - } - - function arc() { - var innerRadius = arcInnerRadius, - outerRadius = arcOuterRadius, - cornerRadius = constant$b(0), - padRadius = null, - startAngle = arcStartAngle, - endAngle = arcEndAngle, - padAngle = arcPadAngle, - context = null; - - function arc() { - var buffer, - r, - r0 = +innerRadius.apply(this, arguments), - r1 = +outerRadius.apply(this, arguments), - a0 = startAngle.apply(this, arguments) - halfPi$3, - a1 = endAngle.apply(this, arguments) - halfPi$3, - da = abs$1(a1 - a0), - cw = a1 > a0; - - if (!context) context = buffer = path(); - - // Ensure that the outer radius is always larger than the inner radius. - if (r1 < r0) r = r1, r1 = r0, r0 = r; - - // Is it a point? - if (!(r1 > epsilon$3)) context.moveTo(0, 0); - - // Or is it a circle or annulus? - else if (da > tau$4 - epsilon$3) { - context.moveTo(r1 * cos$2(a0), r1 * sin$2(a0)); - context.arc(0, 0, r1, a0, a1, !cw); - if (r0 > epsilon$3) { - context.moveTo(r0 * cos$2(a1), r0 * sin$2(a1)); - context.arc(0, 0, r0, a1, a0, cw); - } - } - - // Or is it a circular or annular sector? - else { - var a01 = a0, - a11 = a1, - a00 = a0, - a10 = a1, - da0 = da, - da1 = da, - ap = padAngle.apply(this, arguments) / 2, - rp = (ap > epsilon$3) && (padRadius ? +padRadius.apply(this, arguments) : sqrt$2(r0 * r0 + r1 * r1)), - rc = min$1(abs$1(r1 - r0) / 2, +cornerRadius.apply(this, arguments)), - rc0 = rc, - rc1 = rc, - t0, - t1; - - // Apply padding? Note that since r1 ≥ r0, da1 ≥ da0. - if (rp > epsilon$3) { - var p0 = asin$1(rp / r0 * sin$2(ap)), - p1 = asin$1(rp / r1 * sin$2(ap)); - if ((da0 -= p0 * 2) > epsilon$3) p0 *= (cw ? 1 : -1), a00 += p0, a10 -= p0; - else da0 = 0, a00 = a10 = (a0 + a1) / 2; - if ((da1 -= p1 * 2) > epsilon$3) p1 *= (cw ? 1 : -1), a01 += p1, a11 -= p1; - else da1 = 0, a01 = a11 = (a0 + a1) / 2; - } - - var x01 = r1 * cos$2(a01), - y01 = r1 * sin$2(a01), - x10 = r0 * cos$2(a10), - y10 = r0 * sin$2(a10); - - // Apply rounded corners? - if (rc > epsilon$3) { - var x11 = r1 * cos$2(a11), - y11 = r1 * sin$2(a11), - x00 = r0 * cos$2(a00), - y00 = r0 * sin$2(a00), - oc; - - // Restrict the corner radius according to the sector angle. - if (da < pi$4 && (oc = intersect(x01, y01, x00, y00, x11, y11, x10, y10))) { - var ax = x01 - oc[0], - ay = y01 - oc[1], - bx = x11 - oc[0], - by = y11 - oc[1], - kc = 1 / sin$2(acos$1((ax * bx + ay * by) / (sqrt$2(ax * ax + ay * ay) * sqrt$2(bx * bx + by * by))) / 2), - lc = sqrt$2(oc[0] * oc[0] + oc[1] * oc[1]); - rc0 = min$1(rc, (r0 - lc) / (kc - 1)); - rc1 = min$1(rc, (r1 - lc) / (kc + 1)); - } - } - - // Is the sector collapsed to a line? - if (!(da1 > epsilon$3)) context.moveTo(x01, y01); - - // Does the sector’s outer ring have rounded corners? - else if (rc1 > epsilon$3) { - t0 = cornerTangents(x00, y00, x01, y01, r1, rc1, cw); - t1 = cornerTangents(x11, y11, x10, y10, r1, rc1, cw); - - context.moveTo(t0.cx + t0.x01, t0.cy + t0.y01); - - // Have the corners merged? - if (rc1 < rc) context.arc(t0.cx, t0.cy, rc1, atan2$1(t0.y01, t0.x01), atan2$1(t1.y01, t1.x01), !cw); - - // Otherwise, draw the two corners and the ring. - else { - context.arc(t0.cx, t0.cy, rc1, atan2$1(t0.y01, t0.x01), atan2$1(t0.y11, t0.x11), !cw); - context.arc(0, 0, r1, atan2$1(t0.cy + t0.y11, t0.cx + t0.x11), atan2$1(t1.cy + t1.y11, t1.cx + t1.x11), !cw); - context.arc(t1.cx, t1.cy, rc1, atan2$1(t1.y11, t1.x11), atan2$1(t1.y01, t1.x01), !cw); - } - } - - // Or is the outer ring just a circular arc? - else context.moveTo(x01, y01), context.arc(0, 0, r1, a01, a11, !cw); - - // Is there no inner ring, and it’s a circular sector? - // Or perhaps it’s an annular sector collapsed due to padding? - if (!(r0 > epsilon$3) || !(da0 > epsilon$3)) context.lineTo(x10, y10); - - // Does the sector’s inner ring (or point) have rounded corners? - else if (rc0 > epsilon$3) { - t0 = cornerTangents(x10, y10, x11, y11, r0, -rc0, cw); - t1 = cornerTangents(x01, y01, x00, y00, r0, -rc0, cw); - - context.lineTo(t0.cx + t0.x01, t0.cy + t0.y01); - - // Have the corners merged? - if (rc0 < rc) context.arc(t0.cx, t0.cy, rc0, atan2$1(t0.y01, t0.x01), atan2$1(t1.y01, t1.x01), !cw); - - // Otherwise, draw the two corners and the ring. - else { - context.arc(t0.cx, t0.cy, rc0, atan2$1(t0.y01, t0.x01), atan2$1(t0.y11, t0.x11), !cw); - context.arc(0, 0, r0, atan2$1(t0.cy + t0.y11, t0.cx + t0.x11), atan2$1(t1.cy + t1.y11, t1.cx + t1.x11), cw); - context.arc(t1.cx, t1.cy, rc0, atan2$1(t1.y11, t1.x11), atan2$1(t1.y01, t1.x01), !cw); - } - } - - // Or is the inner ring just a circular arc? - else context.arc(0, 0, r0, a10, a00, cw); - } - - context.closePath(); - - if (buffer) return context = null, buffer + "" || null; - } - - arc.centroid = function() { - var r = (+innerRadius.apply(this, arguments) + +outerRadius.apply(this, arguments)) / 2, - a = (+startAngle.apply(this, arguments) + +endAngle.apply(this, arguments)) / 2 - pi$4 / 2; - return [cos$2(a) * r, sin$2(a) * r]; - }; - - arc.innerRadius = function(_) { - return arguments.length ? (innerRadius = typeof _ === "function" ? _ : constant$b(+_), arc) : innerRadius; - }; - - arc.outerRadius = function(_) { - return arguments.length ? (outerRadius = typeof _ === "function" ? _ : constant$b(+_), arc) : outerRadius; - }; - - arc.cornerRadius = function(_) { - return arguments.length ? (cornerRadius = typeof _ === "function" ? _ : constant$b(+_), arc) : cornerRadius; - }; - - arc.padRadius = function(_) { - return arguments.length ? (padRadius = _ == null ? null : typeof _ === "function" ? _ : constant$b(+_), arc) : padRadius; - }; - - arc.startAngle = function(_) { - return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$b(+_), arc) : startAngle; - }; - - arc.endAngle = function(_) { - return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$b(+_), arc) : endAngle; - }; - - arc.padAngle = function(_) { - return arguments.length ? (padAngle = typeof _ === "function" ? _ : constant$b(+_), arc) : padAngle; - }; - - arc.context = function(_) { - return arguments.length ? ((context = _ == null ? null : _), arc) : context; - }; - - return arc; - } - - function Linear(context) { - this._context = context; - } - - Linear.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._point = 0; - }, - lineEnd: function() { - if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; - case 1: this._point = 2; // proceed - default: this._context.lineTo(x, y); break; - } - } - }; - - function curveLinear(context) { - return new Linear(context); - } - - function x$3(p) { - return p[0]; - } - - function y$3(p) { - return p[1]; - } - - function line() { - var x = x$3, - y = y$3, - defined = constant$b(true), - context = null, - curve = curveLinear, - output = null; - - function line(data) { - var i, - n = data.length, - d, - defined0 = false, - buffer; - - if (context == null) output = curve(buffer = path()); - - for (i = 0; i <= n; ++i) { - if (!(i < n && defined(d = data[i], i, data)) === defined0) { - if (defined0 = !defined0) output.lineStart(); - else output.lineEnd(); - } - if (defined0) output.point(+x(d, i, data), +y(d, i, data)); - } - - if (buffer) return output = null, buffer + "" || null; - } - - line.x = function(_) { - return arguments.length ? (x = typeof _ === "function" ? _ : constant$b(+_), line) : x; - }; - - line.y = function(_) { - return arguments.length ? (y = typeof _ === "function" ? _ : constant$b(+_), line) : y; - }; - - line.defined = function(_) { - return arguments.length ? (defined = typeof _ === "function" ? _ : constant$b(!!_), line) : defined; - }; - - line.curve = function(_) { - return arguments.length ? (curve = _, context != null && (output = curve(context)), line) : curve; - }; - - line.context = function(_) { - return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), line) : context; - }; - - return line; - } - - function area$3() { - var x0 = x$3, - x1 = null, - y0 = constant$b(0), - y1 = y$3, - defined = constant$b(true), - context = null, - curve = curveLinear, - output = null; - - function area(data) { - var i, - j, - k, - n = data.length, - d, - defined0 = false, - buffer, - x0z = new Array(n), - y0z = new Array(n); - - if (context == null) output = curve(buffer = path()); - - for (i = 0; i <= n; ++i) { - if (!(i < n && defined(d = data[i], i, data)) === defined0) { - if (defined0 = !defined0) { - j = i; - output.areaStart(); - output.lineStart(); - } else { - output.lineEnd(); - output.lineStart(); - for (k = i - 1; k >= j; --k) { - output.point(x0z[k], y0z[k]); - } - output.lineEnd(); - output.areaEnd(); - } - } - if (defined0) { - x0z[i] = +x0(d, i, data), y0z[i] = +y0(d, i, data); - output.point(x1 ? +x1(d, i, data) : x0z[i], y1 ? +y1(d, i, data) : y0z[i]); - } - } - - if (buffer) return output = null, buffer + "" || null; - } - - function arealine() { - return line().defined(defined).curve(curve).context(context); - } - - area.x = function(_) { - return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$b(+_), x1 = null, area) : x0; - }; - - area.x0 = function(_) { - return arguments.length ? (x0 = typeof _ === "function" ? _ : constant$b(+_), area) : x0; - }; - - area.x1 = function(_) { - return arguments.length ? (x1 = _ == null ? null : typeof _ === "function" ? _ : constant$b(+_), area) : x1; - }; - - area.y = function(_) { - return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$b(+_), y1 = null, area) : y0; - }; - - area.y0 = function(_) { - return arguments.length ? (y0 = typeof _ === "function" ? _ : constant$b(+_), area) : y0; - }; - - area.y1 = function(_) { - return arguments.length ? (y1 = _ == null ? null : typeof _ === "function" ? _ : constant$b(+_), area) : y1; - }; - - area.lineX0 = - area.lineY0 = function() { - return arealine().x(x0).y(y0); - }; - - area.lineY1 = function() { - return arealine().x(x0).y(y1); - }; - - area.lineX1 = function() { - return arealine().x(x1).y(y0); - }; - - area.defined = function(_) { - return arguments.length ? (defined = typeof _ === "function" ? _ : constant$b(!!_), area) : defined; - }; - - area.curve = function(_) { - return arguments.length ? (curve = _, context != null && (output = curve(context)), area) : curve; - }; - - area.context = function(_) { - return arguments.length ? (_ == null ? context = output = null : output = curve(context = _), area) : context; - }; - - return area; - } - - function descending$1(a, b) { - return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN; - } - - function identity$8(d) { - return d; - } - - function pie() { - var value = identity$8, - sortValues = descending$1, - sort = null, - startAngle = constant$b(0), - endAngle = constant$b(tau$4), - padAngle = constant$b(0); - - function pie(data) { - var i, - n = data.length, - j, - k, - sum = 0, - index = new Array(n), - arcs = new Array(n), - a0 = +startAngle.apply(this, arguments), - da = Math.min(tau$4, Math.max(-tau$4, endAngle.apply(this, arguments) - a0)), - a1, - p = Math.min(Math.abs(da) / n, padAngle.apply(this, arguments)), - pa = p * (da < 0 ? -1 : 1), - v; - - for (i = 0; i < n; ++i) { - if ((v = arcs[index[i] = i] = +value(data[i], i, data)) > 0) { - sum += v; - } - } - - // Optionally sort the arcs by previously-computed values or by data. - if (sortValues != null) index.sort(function(i, j) { return sortValues(arcs[i], arcs[j]); }); - else if (sort != null) index.sort(function(i, j) { return sort(data[i], data[j]); }); - - // Compute the arcs! They are stored in the original data's order. - for (i = 0, k = sum ? (da - n * pa) / sum : 0; i < n; ++i, a0 = a1) { - j = index[i], v = arcs[j], a1 = a0 + (v > 0 ? v * k : 0) + pa, arcs[j] = { - data: data[j], - index: i, - value: v, - startAngle: a0, - endAngle: a1, - padAngle: p - }; - } - - return arcs; - } - - pie.value = function(_) { - return arguments.length ? (value = typeof _ === "function" ? _ : constant$b(+_), pie) : value; - }; - - pie.sortValues = function(_) { - return arguments.length ? (sortValues = _, sort = null, pie) : sortValues; - }; - - pie.sort = function(_) { - return arguments.length ? (sort = _, sortValues = null, pie) : sort; - }; - - pie.startAngle = function(_) { - return arguments.length ? (startAngle = typeof _ === "function" ? _ : constant$b(+_), pie) : startAngle; - }; - - pie.endAngle = function(_) { - return arguments.length ? (endAngle = typeof _ === "function" ? _ : constant$b(+_), pie) : endAngle; - }; - - pie.padAngle = function(_) { - return arguments.length ? (padAngle = typeof _ === "function" ? _ : constant$b(+_), pie) : padAngle; - }; - - return pie; - } - - var curveRadialLinear = curveRadial(curveLinear); - - function Radial(curve) { - this._curve = curve; - } - - Radial.prototype = { - areaStart: function() { - this._curve.areaStart(); - }, - areaEnd: function() { - this._curve.areaEnd(); - }, - lineStart: function() { - this._curve.lineStart(); - }, - lineEnd: function() { - this._curve.lineEnd(); - }, - point: function(a, r) { - this._curve.point(r * Math.sin(a), r * -Math.cos(a)); - } - }; - - function curveRadial(curve) { - - function radial(context) { - return new Radial(curve(context)); - } - - radial._curve = curve; - - return radial; - } - - function lineRadial(l) { - var c = l.curve; - - l.angle = l.x, delete l.x; - l.radius = l.y, delete l.y; - - l.curve = function(_) { - return arguments.length ? c(curveRadial(_)) : c()._curve; - }; - - return l; - } - - function lineRadial$1() { - return lineRadial(line().curve(curveRadialLinear)); - } - - function areaRadial() { - var a = area$3().curve(curveRadialLinear), - c = a.curve, - x0 = a.lineX0, - x1 = a.lineX1, - y0 = a.lineY0, - y1 = a.lineY1; - - a.angle = a.x, delete a.x; - a.startAngle = a.x0, delete a.x0; - a.endAngle = a.x1, delete a.x1; - a.radius = a.y, delete a.y; - a.innerRadius = a.y0, delete a.y0; - a.outerRadius = a.y1, delete a.y1; - a.lineStartAngle = function() { return lineRadial(x0()); }, delete a.lineX0; - a.lineEndAngle = function() { return lineRadial(x1()); }, delete a.lineX1; - a.lineInnerRadius = function() { return lineRadial(y0()); }, delete a.lineY0; - a.lineOuterRadius = function() { return lineRadial(y1()); }, delete a.lineY1; - - a.curve = function(_) { - return arguments.length ? c(curveRadial(_)) : c()._curve; - }; - - return a; - } - - function pointRadial(x, y) { - return [(y = +y) * Math.cos(x -= Math.PI / 2), y * Math.sin(x)]; - } - - var slice$6 = Array.prototype.slice; - - function linkSource(d) { - return d.source; - } - - function linkTarget(d) { - return d.target; - } - - function link$2(curve) { - var source = linkSource, - target = linkTarget, - x = x$3, - y = y$3, - context = null; - - function link() { - var buffer, argv = slice$6.call(arguments), s = source.apply(this, argv), t = target.apply(this, argv); - if (!context) context = buffer = path(); - curve(context, +x.apply(this, (argv[0] = s, argv)), +y.apply(this, argv), +x.apply(this, (argv[0] = t, argv)), +y.apply(this, argv)); - if (buffer) return context = null, buffer + "" || null; - } - - link.source = function(_) { - return arguments.length ? (source = _, link) : source; - }; - - link.target = function(_) { - return arguments.length ? (target = _, link) : target; - }; - - link.x = function(_) { - return arguments.length ? (x = typeof _ === "function" ? _ : constant$b(+_), link) : x; - }; - - link.y = function(_) { - return arguments.length ? (y = typeof _ === "function" ? _ : constant$b(+_), link) : y; - }; - - link.context = function(_) { - return arguments.length ? ((context = _ == null ? null : _), link) : context; - }; - - return link; - } - - function curveHorizontal(context, x0, y0, x1, y1) { - context.moveTo(x0, y0); - context.bezierCurveTo(x0 = (x0 + x1) / 2, y0, x0, y1, x1, y1); - } - - function curveVertical(context, x0, y0, x1, y1) { - context.moveTo(x0, y0); - context.bezierCurveTo(x0, y0 = (y0 + y1) / 2, x1, y0, x1, y1); - } - - function curveRadial$1(context, x0, y0, x1, y1) { - var p0 = pointRadial(x0, y0), - p1 = pointRadial(x0, y0 = (y0 + y1) / 2), - p2 = pointRadial(x1, y0), - p3 = pointRadial(x1, y1); - context.moveTo(p0[0], p0[1]); - context.bezierCurveTo(p1[0], p1[1], p2[0], p2[1], p3[0], p3[1]); - } - - function linkHorizontal() { - return link$2(curveHorizontal); - } - - function linkVertical() { - return link$2(curveVertical); - } - - function linkRadial() { - var l = link$2(curveRadial$1); - l.angle = l.x, delete l.x; - l.radius = l.y, delete l.y; - return l; - } - - var circle$2 = { - draw: function(context, size) { - var r = Math.sqrt(size / pi$4); - context.moveTo(r, 0); - context.arc(0, 0, r, 0, tau$4); - } - }; - - var cross$2 = { - draw: function(context, size) { - var r = Math.sqrt(size / 5) / 2; - context.moveTo(-3 * r, -r); - context.lineTo(-r, -r); - context.lineTo(-r, -3 * r); - context.lineTo(r, -3 * r); - context.lineTo(r, -r); - context.lineTo(3 * r, -r); - context.lineTo(3 * r, r); - context.lineTo(r, r); - context.lineTo(r, 3 * r); - context.lineTo(-r, 3 * r); - context.lineTo(-r, r); - context.lineTo(-3 * r, r); - context.closePath(); - } - }; - - var tan30 = Math.sqrt(1 / 3), - tan30_2 = tan30 * 2; - - var diamond = { - draw: function(context, size) { - var y = Math.sqrt(size / tan30_2), - x = y * tan30; - context.moveTo(0, -y); - context.lineTo(x, 0); - context.lineTo(0, y); - context.lineTo(-x, 0); - context.closePath(); - } - }; - - var ka = 0.89081309152928522810, - kr = Math.sin(pi$4 / 10) / Math.sin(7 * pi$4 / 10), - kx = Math.sin(tau$4 / 10) * kr, - ky = -Math.cos(tau$4 / 10) * kr; - - var star = { - draw: function(context, size) { - var r = Math.sqrt(size * ka), - x = kx * r, - y = ky * r; - context.moveTo(0, -r); - context.lineTo(x, y); - for (var i = 1; i < 5; ++i) { - var a = tau$4 * i / 5, - c = Math.cos(a), - s = Math.sin(a); - context.lineTo(s * r, -c * r); - context.lineTo(c * x - s * y, s * x + c * y); - } - context.closePath(); - } - }; - - var square = { - draw: function(context, size) { - var w = Math.sqrt(size), - x = -w / 2; - context.rect(x, x, w, w); - } - }; - - var sqrt3 = Math.sqrt(3); - - var triangle = { - draw: function(context, size) { - var y = -Math.sqrt(size / (sqrt3 * 3)); - context.moveTo(0, y * 2); - context.lineTo(-sqrt3 * y, -y); - context.lineTo(sqrt3 * y, -y); - context.closePath(); - } - }; - - var c$2 = -0.5, - s = Math.sqrt(3) / 2, - k = 1 / Math.sqrt(12), - a = (k / 2 + 1) * 3; - - var wye = { - draw: function(context, size) { - var r = Math.sqrt(size / a), - x0 = r / 2, - y0 = r * k, - x1 = x0, - y1 = r * k + r, - x2 = -x1, - y2 = y1; - context.moveTo(x0, y0); - context.lineTo(x1, y1); - context.lineTo(x2, y2); - context.lineTo(c$2 * x0 - s * y0, s * x0 + c$2 * y0); - context.lineTo(c$2 * x1 - s * y1, s * x1 + c$2 * y1); - context.lineTo(c$2 * x2 - s * y2, s * x2 + c$2 * y2); - context.lineTo(c$2 * x0 + s * y0, c$2 * y0 - s * x0); - context.lineTo(c$2 * x1 + s * y1, c$2 * y1 - s * x1); - context.lineTo(c$2 * x2 + s * y2, c$2 * y2 - s * x2); - context.closePath(); - } - }; - - var symbols = [ - circle$2, - cross$2, - diamond, - square, - star, - triangle, - wye - ]; - - function symbol() { - var type = constant$b(circle$2), - size = constant$b(64), - context = null; - - function symbol() { - var buffer; - if (!context) context = buffer = path(); - type.apply(this, arguments).draw(context, +size.apply(this, arguments)); - if (buffer) return context = null, buffer + "" || null; - } - - symbol.type = function(_) { - return arguments.length ? (type = typeof _ === "function" ? _ : constant$b(_), symbol) : type; - }; - - symbol.size = function(_) { - return arguments.length ? (size = typeof _ === "function" ? _ : constant$b(+_), symbol) : size; - }; - - symbol.context = function(_) { - return arguments.length ? (context = _ == null ? null : _, symbol) : context; - }; - - return symbol; - } - - function noop$3() {} - - function point$2(that, x, y) { - that._context.bezierCurveTo( - (2 * that._x0 + that._x1) / 3, - (2 * that._y0 + that._y1) / 3, - (that._x0 + 2 * that._x1) / 3, - (that._y0 + 2 * that._y1) / 3, - (that._x0 + 4 * that._x1 + x) / 6, - (that._y0 + 4 * that._y1 + y) / 6 - ); - } - - function Basis(context) { - this._context = context; - } - - Basis.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x0 = this._x1 = - this._y0 = this._y1 = NaN; - this._point = 0; - }, - lineEnd: function() { - switch (this._point) { - case 3: point$2(this, this._x1, this._y1); // proceed - case 2: this._context.lineTo(this._x1, this._y1); break; - } - if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; - case 1: this._point = 2; break; - case 2: this._point = 3; this._context.lineTo((5 * this._x0 + this._x1) / 6, (5 * this._y0 + this._y1) / 6); // proceed - default: point$2(this, x, y); break; - } - this._x0 = this._x1, this._x1 = x; - this._y0 = this._y1, this._y1 = y; - } - }; - - function basis$2(context) { - return new Basis(context); - } - - function BasisClosed(context) { - this._context = context; - } - - BasisClosed.prototype = { - areaStart: noop$3, - areaEnd: noop$3, - lineStart: function() { - this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = - this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = NaN; - this._point = 0; - }, - lineEnd: function() { - switch (this._point) { - case 1: { - this._context.moveTo(this._x2, this._y2); - this._context.closePath(); - break; - } - case 2: { - this._context.moveTo((this._x2 + 2 * this._x3) / 3, (this._y2 + 2 * this._y3) / 3); - this._context.lineTo((this._x3 + 2 * this._x2) / 3, (this._y3 + 2 * this._y2) / 3); - this._context.closePath(); - break; - } - case 3: { - this.point(this._x2, this._y2); - this.point(this._x3, this._y3); - this.point(this._x4, this._y4); - break; - } - } - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; this._x2 = x, this._y2 = y; break; - case 1: this._point = 2; this._x3 = x, this._y3 = y; break; - case 2: this._point = 3; this._x4 = x, this._y4 = y; this._context.moveTo((this._x0 + 4 * this._x1 + x) / 6, (this._y0 + 4 * this._y1 + y) / 6); break; - default: point$2(this, x, y); break; - } - this._x0 = this._x1, this._x1 = x; - this._y0 = this._y1, this._y1 = y; - } - }; - - function basisClosed$1(context) { - return new BasisClosed(context); - } - - function BasisOpen(context) { - this._context = context; - } - - BasisOpen.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x0 = this._x1 = - this._y0 = this._y1 = NaN; - this._point = 0; - }, - lineEnd: function() { - if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; break; - case 1: this._point = 2; break; - case 2: this._point = 3; var x0 = (this._x0 + 4 * this._x1 + x) / 6, y0 = (this._y0 + 4 * this._y1 + y) / 6; this._line ? this._context.lineTo(x0, y0) : this._context.moveTo(x0, y0); break; - case 3: this._point = 4; // proceed - default: point$2(this, x, y); break; - } - this._x0 = this._x1, this._x1 = x; - this._y0 = this._y1, this._y1 = y; - } - }; - - function basisOpen(context) { - return new BasisOpen(context); - } - - function Bundle(context, beta) { - this._basis = new Basis(context); - this._beta = beta; - } - - Bundle.prototype = { - lineStart: function() { - this._x = []; - this._y = []; - this._basis.lineStart(); - }, - lineEnd: function() { - var x = this._x, - y = this._y, - j = x.length - 1; - - if (j > 0) { - var x0 = x[0], - y0 = y[0], - dx = x[j] - x0, - dy = y[j] - y0, - i = -1, - t; - - while (++i <= j) { - t = i / j; - this._basis.point( - this._beta * x[i] + (1 - this._beta) * (x0 + t * dx), - this._beta * y[i] + (1 - this._beta) * (y0 + t * dy) - ); - } - } - - this._x = this._y = null; - this._basis.lineEnd(); - }, - point: function(x, y) { - this._x.push(+x); - this._y.push(+y); - } - }; - - var bundle = (function custom(beta) { - - function bundle(context) { - return beta === 1 ? new Basis(context) : new Bundle(context, beta); - } - - bundle.beta = function(beta) { - return custom(+beta); - }; - - return bundle; - })(0.85); - - function point$3(that, x, y) { - that._context.bezierCurveTo( - that._x1 + that._k * (that._x2 - that._x0), - that._y1 + that._k * (that._y2 - that._y0), - that._x2 + that._k * (that._x1 - x), - that._y2 + that._k * (that._y1 - y), - that._x2, - that._y2 - ); - } - - function Cardinal(context, tension) { - this._context = context; - this._k = (1 - tension) / 6; - } - - Cardinal.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x0 = this._x1 = this._x2 = - this._y0 = this._y1 = this._y2 = NaN; - this._point = 0; - }, - lineEnd: function() { - switch (this._point) { - case 2: this._context.lineTo(this._x2, this._y2); break; - case 3: point$3(this, this._x1, this._y1); break; - } - if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; - case 1: this._point = 2; this._x1 = x, this._y1 = y; break; - case 2: this._point = 3; // proceed - default: point$3(this, x, y); break; - } - this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; - this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; - } - }; - - var cardinal = (function custom(tension) { - - function cardinal(context) { - return new Cardinal(context, tension); - } - - cardinal.tension = function(tension) { - return custom(+tension); - }; - - return cardinal; - })(0); - - function CardinalClosed(context, tension) { - this._context = context; - this._k = (1 - tension) / 6; - } - - CardinalClosed.prototype = { - areaStart: noop$3, - areaEnd: noop$3, - lineStart: function() { - this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 = - this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN; - this._point = 0; - }, - lineEnd: function() { - switch (this._point) { - case 1: { - this._context.moveTo(this._x3, this._y3); - this._context.closePath(); - break; - } - case 2: { - this._context.lineTo(this._x3, this._y3); - this._context.closePath(); - break; - } - case 3: { - this.point(this._x3, this._y3); - this.point(this._x4, this._y4); - this.point(this._x5, this._y5); - break; - } - } - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; this._x3 = x, this._y3 = y; break; - case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break; - case 2: this._point = 3; this._x5 = x, this._y5 = y; break; - default: point$3(this, x, y); break; - } - this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; - this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; - } - }; - - var cardinalClosed = (function custom(tension) { - - function cardinal(context) { - return new CardinalClosed(context, tension); - } - - cardinal.tension = function(tension) { - return custom(+tension); - }; - - return cardinal; - })(0); - - function CardinalOpen(context, tension) { - this._context = context; - this._k = (1 - tension) / 6; - } - - CardinalOpen.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x0 = this._x1 = this._x2 = - this._y0 = this._y1 = this._y2 = NaN; - this._point = 0; - }, - lineEnd: function() { - if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; break; - case 1: this._point = 2; break; - case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break; - case 3: this._point = 4; // proceed - default: point$3(this, x, y); break; - } - this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; - this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; - } - }; - - var cardinalOpen = (function custom(tension) { - - function cardinal(context) { - return new CardinalOpen(context, tension); - } - - cardinal.tension = function(tension) { - return custom(+tension); - }; - - return cardinal; - })(0); - - function point$4(that, x, y) { - var x1 = that._x1, - y1 = that._y1, - x2 = that._x2, - y2 = that._y2; - - if (that._l01_a > epsilon$3) { - var a = 2 * that._l01_2a + 3 * that._l01_a * that._l12_a + that._l12_2a, - n = 3 * that._l01_a * (that._l01_a + that._l12_a); - x1 = (x1 * a - that._x0 * that._l12_2a + that._x2 * that._l01_2a) / n; - y1 = (y1 * a - that._y0 * that._l12_2a + that._y2 * that._l01_2a) / n; - } - - if (that._l23_a > epsilon$3) { - var b = 2 * that._l23_2a + 3 * that._l23_a * that._l12_a + that._l12_2a, - m = 3 * that._l23_a * (that._l23_a + that._l12_a); - x2 = (x2 * b + that._x1 * that._l23_2a - x * that._l12_2a) / m; - y2 = (y2 * b + that._y1 * that._l23_2a - y * that._l12_2a) / m; - } - - that._context.bezierCurveTo(x1, y1, x2, y2, that._x2, that._y2); - } - - function CatmullRom(context, alpha) { - this._context = context; - this._alpha = alpha; - } - - CatmullRom.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x0 = this._x1 = this._x2 = - this._y0 = this._y1 = this._y2 = NaN; - this._l01_a = this._l12_a = this._l23_a = - this._l01_2a = this._l12_2a = this._l23_2a = - this._point = 0; - }, - lineEnd: function() { - switch (this._point) { - case 2: this._context.lineTo(this._x2, this._y2); break; - case 3: this.point(this._x2, this._y2); break; - } - if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; - - if (this._point) { - var x23 = this._x2 - x, - y23 = this._y2 - y; - this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha)); - } - - switch (this._point) { - case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; - case 1: this._point = 2; break; - case 2: this._point = 3; // proceed - default: point$4(this, x, y); break; - } - - this._l01_a = this._l12_a, this._l12_a = this._l23_a; - this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a; - this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; - this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; - } - }; - - var catmullRom = (function custom(alpha) { - - function catmullRom(context) { - return alpha ? new CatmullRom(context, alpha) : new Cardinal(context, 0); - } - - catmullRom.alpha = function(alpha) { - return custom(+alpha); - }; - - return catmullRom; - })(0.5); - - function CatmullRomClosed(context, alpha) { - this._context = context; - this._alpha = alpha; - } - - CatmullRomClosed.prototype = { - areaStart: noop$3, - areaEnd: noop$3, - lineStart: function() { - this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 = - this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN; - this._l01_a = this._l12_a = this._l23_a = - this._l01_2a = this._l12_2a = this._l23_2a = - this._point = 0; - }, - lineEnd: function() { - switch (this._point) { - case 1: { - this._context.moveTo(this._x3, this._y3); - this._context.closePath(); - break; - } - case 2: { - this._context.lineTo(this._x3, this._y3); - this._context.closePath(); - break; - } - case 3: { - this.point(this._x3, this._y3); - this.point(this._x4, this._y4); - this.point(this._x5, this._y5); - break; - } - } - }, - point: function(x, y) { - x = +x, y = +y; - - if (this._point) { - var x23 = this._x2 - x, - y23 = this._y2 - y; - this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha)); - } - - switch (this._point) { - case 0: this._point = 1; this._x3 = x, this._y3 = y; break; - case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break; - case 2: this._point = 3; this._x5 = x, this._y5 = y; break; - default: point$4(this, x, y); break; - } - - this._l01_a = this._l12_a, this._l12_a = this._l23_a; - this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a; - this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; - this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; - } - }; - - var catmullRomClosed = (function custom(alpha) { - - function catmullRom(context) { - return alpha ? new CatmullRomClosed(context, alpha) : new CardinalClosed(context, 0); - } - - catmullRom.alpha = function(alpha) { - return custom(+alpha); - }; - - return catmullRom; - })(0.5); - - function CatmullRomOpen(context, alpha) { - this._context = context; - this._alpha = alpha; - } - - CatmullRomOpen.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x0 = this._x1 = this._x2 = - this._y0 = this._y1 = this._y2 = NaN; - this._l01_a = this._l12_a = this._l23_a = - this._l01_2a = this._l12_2a = this._l23_2a = - this._point = 0; - }, - lineEnd: function() { - if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; - - if (this._point) { - var x23 = this._x2 - x, - y23 = this._y2 - y; - this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha)); - } - - switch (this._point) { - case 0: this._point = 1; break; - case 1: this._point = 2; break; - case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break; - case 3: this._point = 4; // proceed - default: point$4(this, x, y); break; - } - - this._l01_a = this._l12_a, this._l12_a = this._l23_a; - this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a; - this._x0 = this._x1, this._x1 = this._x2, this._x2 = x; - this._y0 = this._y1, this._y1 = this._y2, this._y2 = y; - } - }; - - var catmullRomOpen = (function custom(alpha) { - - function catmullRom(context) { - return alpha ? new CatmullRomOpen(context, alpha) : new CardinalOpen(context, 0); - } - - catmullRom.alpha = function(alpha) { - return custom(+alpha); - }; - - return catmullRom; - })(0.5); - - function LinearClosed(context) { - this._context = context; - } - - LinearClosed.prototype = { - areaStart: noop$3, - areaEnd: noop$3, - lineStart: function() { - this._point = 0; - }, - lineEnd: function() { - if (this._point) this._context.closePath(); - }, - point: function(x, y) { - x = +x, y = +y; - if (this._point) this._context.lineTo(x, y); - else this._point = 1, this._context.moveTo(x, y); - } - }; - - function linearClosed(context) { - return new LinearClosed(context); - } - - function sign$1(x) { - return x < 0 ? -1 : 1; - } - - // Calculate the slopes of the tangents (Hermite-type interpolation) based on - // the following paper: Steffen, M. 1990. A Simple Method for Monotonic - // Interpolation in One Dimension. Astronomy and Astrophysics, Vol. 239, NO. - // NOV(II), P. 443, 1990. - function slope3(that, x2, y2) { - var h0 = that._x1 - that._x0, - h1 = x2 - that._x1, - s0 = (that._y1 - that._y0) / (h0 || h1 < 0 && -0), - s1 = (y2 - that._y1) / (h1 || h0 < 0 && -0), - p = (s0 * h1 + s1 * h0) / (h0 + h1); - return (sign$1(s0) + sign$1(s1)) * Math.min(Math.abs(s0), Math.abs(s1), 0.5 * Math.abs(p)) || 0; - } - - // Calculate a one-sided slope. - function slope2(that, t) { - var h = that._x1 - that._x0; - return h ? (3 * (that._y1 - that._y0) / h - t) / 2 : t; - } - - // According to https://en.wikipedia.org/wiki/Cubic_Hermite_spline#Representations - // "you can express cubic Hermite interpolation in terms of cubic Bézier curves - // with respect to the four values p0, p0 + m0 / 3, p1 - m1 / 3, p1". - function point$5(that, t0, t1) { - var x0 = that._x0, - y0 = that._y0, - x1 = that._x1, - y1 = that._y1, - dx = (x1 - x0) / 3; - that._context.bezierCurveTo(x0 + dx, y0 + dx * t0, x1 - dx, y1 - dx * t1, x1, y1); - } - - function MonotoneX(context) { - this._context = context; - } - - MonotoneX.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x0 = this._x1 = - this._y0 = this._y1 = - this._t0 = NaN; - this._point = 0; - }, - lineEnd: function() { - switch (this._point) { - case 2: this._context.lineTo(this._x1, this._y1); break; - case 3: point$5(this, this._t0, slope2(this, this._t0)); break; - } - if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); - this._line = 1 - this._line; - }, - point: function(x, y) { - var t1 = NaN; - - x = +x, y = +y; - if (x === this._x1 && y === this._y1) return; // Ignore coincident points. - switch (this._point) { - case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; - case 1: this._point = 2; break; - case 2: this._point = 3; point$5(this, slope2(this, t1 = slope3(this, x, y)), t1); break; - default: point$5(this, this._t0, t1 = slope3(this, x, y)); break; - } - - this._x0 = this._x1, this._x1 = x; - this._y0 = this._y1, this._y1 = y; - this._t0 = t1; - } - }; - - function MonotoneY(context) { - this._context = new ReflectContext(context); - } - - (MonotoneY.prototype = Object.create(MonotoneX.prototype)).point = function(x, y) { - MonotoneX.prototype.point.call(this, y, x); - }; - - function ReflectContext(context) { - this._context = context; - } - - ReflectContext.prototype = { - moveTo: function(x, y) { this._context.moveTo(y, x); }, - closePath: function() { this._context.closePath(); }, - lineTo: function(x, y) { this._context.lineTo(y, x); }, - bezierCurveTo: function(x1, y1, x2, y2, x, y) { this._context.bezierCurveTo(y1, x1, y2, x2, y, x); } - }; - - function monotoneX(context) { - return new MonotoneX(context); - } - - function monotoneY(context) { - return new MonotoneY(context); - } - - function Natural(context) { - this._context = context; - } - - Natural.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x = []; - this._y = []; - }, - lineEnd: function() { - var x = this._x, - y = this._y, - n = x.length; - - if (n) { - this._line ? this._context.lineTo(x[0], y[0]) : this._context.moveTo(x[0], y[0]); - if (n === 2) { - this._context.lineTo(x[1], y[1]); - } else { - var px = controlPoints(x), - py = controlPoints(y); - for (var i0 = 0, i1 = 1; i1 < n; ++i0, ++i1) { - this._context.bezierCurveTo(px[0][i0], py[0][i0], px[1][i0], py[1][i0], x[i1], y[i1]); - } - } - } - - if (this._line || (this._line !== 0 && n === 1)) this._context.closePath(); - this._line = 1 - this._line; - this._x = this._y = null; - }, - point: function(x, y) { - this._x.push(+x); - this._y.push(+y); - } - }; - - // See https://www.particleincell.com/2012/bezier-splines/ for derivation. - function controlPoints(x) { - var i, - n = x.length - 1, - m, - a = new Array(n), - b = new Array(n), - r = new Array(n); - a[0] = 0, b[0] = 2, r[0] = x[0] + 2 * x[1]; - for (i = 1; i < n - 1; ++i) a[i] = 1, b[i] = 4, r[i] = 4 * x[i] + 2 * x[i + 1]; - a[n - 1] = 2, b[n - 1] = 7, r[n - 1] = 8 * x[n - 1] + x[n]; - for (i = 1; i < n; ++i) m = a[i] / b[i - 1], b[i] -= m, r[i] -= m * r[i - 1]; - a[n - 1] = r[n - 1] / b[n - 1]; - for (i = n - 2; i >= 0; --i) a[i] = (r[i] - a[i + 1]) / b[i]; - b[n - 1] = (x[n] + a[n - 1]) / 2; - for (i = 0; i < n - 1; ++i) b[i] = 2 * x[i + 1] - a[i + 1]; - return [a, b]; - } - - function natural(context) { - return new Natural(context); - } - - function Step(context, t) { - this._context = context; - this._t = t; - } - - Step.prototype = { - areaStart: function() { - this._line = 0; - }, - areaEnd: function() { - this._line = NaN; - }, - lineStart: function() { - this._x = this._y = NaN; - this._point = 0; - }, - lineEnd: function() { - if (0 < this._t && this._t < 1 && this._point === 2) this._context.lineTo(this._x, this._y); - if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath(); - if (this._line >= 0) this._t = 1 - this._t, this._line = 1 - this._line; - }, - point: function(x, y) { - x = +x, y = +y; - switch (this._point) { - case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break; - case 1: this._point = 2; // proceed - default: { - if (this._t <= 0) { - this._context.lineTo(this._x, y); - this._context.lineTo(x, y); - } else { - var x1 = this._x * (1 - this._t) + x * this._t; - this._context.lineTo(x1, this._y); - this._context.lineTo(x1, y); - } - break; - } - } - this._x = x, this._y = y; - } - }; - - function step(context) { - return new Step(context, 0.5); - } - - function stepBefore(context) { - return new Step(context, 0); - } - - function stepAfter(context) { - return new Step(context, 1); - } - - function none$1(series, order) { - if (!((n = series.length) > 1)) return; - for (var i = 1, j, s0, s1 = series[order[0]], n, m = s1.length; i < n; ++i) { - s0 = s1, s1 = series[order[i]]; - for (j = 0; j < m; ++j) { - s1[j][1] += s1[j][0] = isNaN(s0[j][1]) ? s0[j][0] : s0[j][1]; - } - } - } - - function none$2(series) { - var n = series.length, o = new Array(n); - while (--n >= 0) o[n] = n; - return o; - } - - function stackValue(d, key) { - return d[key]; - } - - function stack() { - var keys = constant$b([]), - order = none$2, - offset = none$1, - value = stackValue; - - function stack(data) { - var kz = keys.apply(this, arguments), - i, - m = data.length, - n = kz.length, - sz = new Array(n), - oz; - - for (i = 0; i < n; ++i) { - for (var ki = kz[i], si = sz[i] = new Array(m), j = 0, sij; j < m; ++j) { - si[j] = sij = [0, +value(data[j], ki, j, data)]; - sij.data = data[j]; - } - si.key = ki; - } - - for (i = 0, oz = order(sz); i < n; ++i) { - sz[oz[i]].index = i; - } - - offset(sz, oz); - return sz; - } - - stack.keys = function(_) { - return arguments.length ? (keys = typeof _ === "function" ? _ : constant$b(slice$6.call(_)), stack) : keys; - }; - - stack.value = function(_) { - return arguments.length ? (value = typeof _ === "function" ? _ : constant$b(+_), stack) : value; - }; - - stack.order = function(_) { - return arguments.length ? (order = _ == null ? none$2 : typeof _ === "function" ? _ : constant$b(slice$6.call(_)), stack) : order; - }; - - stack.offset = function(_) { - return arguments.length ? (offset = _ == null ? none$1 : _, stack) : offset; - }; - - return stack; - } - - function expand(series, order) { - if (!((n = series.length) > 0)) return; - for (var i, n, j = 0, m = series[0].length, y; j < m; ++j) { - for (y = i = 0; i < n; ++i) y += series[i][j][1] || 0; - if (y) for (i = 0; i < n; ++i) series[i][j][1] /= y; - } - none$1(series, order); - } - - function diverging$1(series, order) { - if (!((n = series.length) > 0)) return; - for (var i, j = 0, d, dy, yp, yn, n, m = series[order[0]].length; j < m; ++j) { - for (yp = yn = 0, i = 0; i < n; ++i) { - if ((dy = (d = series[order[i]][j])[1] - d[0]) > 0) { - d[0] = yp, d[1] = yp += dy; - } else if (dy < 0) { - d[1] = yn, d[0] = yn += dy; - } else { - d[0] = 0, d[1] = dy; - } - } - } - } - - function silhouette(series, order) { - if (!((n = series.length) > 0)) return; - for (var j = 0, s0 = series[order[0]], n, m = s0.length; j < m; ++j) { - for (var i = 0, y = 0; i < n; ++i) y += series[i][j][1] || 0; - s0[j][1] += s0[j][0] = -y / 2; - } - none$1(series, order); - } - - function wiggle(series, order) { - if (!((n = series.length) > 0) || !((m = (s0 = series[order[0]]).length) > 0)) return; - for (var y = 0, j = 1, s0, m, n; j < m; ++j) { - for (var i = 0, s1 = 0, s2 = 0; i < n; ++i) { - var si = series[order[i]], - sij0 = si[j][1] || 0, - sij1 = si[j - 1][1] || 0, - s3 = (sij0 - sij1) / 2; - for (var k = 0; k < i; ++k) { - var sk = series[order[k]], - skj0 = sk[j][1] || 0, - skj1 = sk[j - 1][1] || 0; - s3 += skj0 - skj1; - } - s1 += sij0, s2 += s3 * sij0; - } - s0[j - 1][1] += s0[j - 1][0] = y; - if (s1) y -= s2 / s1; - } - s0[j - 1][1] += s0[j - 1][0] = y; - none$1(series, order); - } - - function appearance(series) { - var peaks = series.map(peak); - return none$2(series).sort(function(a, b) { return peaks[a] - peaks[b]; }); - } - - function peak(series) { - var i = -1, j = 0, n = series.length, vi, vj = -Infinity; - while (++i < n) if ((vi = +series[i][1]) > vj) vj = vi, j = i; - return j; - } - - function ascending$3(series) { - var sums = series.map(sum$2); - return none$2(series).sort(function(a, b) { return sums[a] - sums[b]; }); - } - - function sum$2(series) { - var s = 0, i = -1, n = series.length, v; - while (++i < n) if (v = +series[i][1]) s += v; - return s; - } - - function descending$2(series) { - return ascending$3(series).reverse(); - } - - function insideOut(series) { - var n = series.length, - i, - j, - sums = series.map(sum$2), - order = appearance(series), - top = 0, - bottom = 0, - tops = [], - bottoms = []; - - for (i = 0; i < n; ++i) { - j = order[i]; - if (top < bottom) { - top += sums[j]; - tops.push(j); - } else { - bottom += sums[j]; - bottoms.push(j); - } - } - - return bottoms.reverse().concat(tops); - } - - function reverse(series) { - return none$2(series).reverse(); - } - - function constant$c(x) { - return function() { - return x; - }; - } - - function x$4(d) { - return d[0]; - } - - function y$4(d) { - return d[1]; - } - - function RedBlackTree() { - this._ = null; // root node - } - - function RedBlackNode(node) { - node.U = // parent node - node.C = // color - true for red, false for black - node.L = // left node - node.R = // right node - node.P = // previous node - node.N = null; // next node - } - - RedBlackTree.prototype = { - constructor: RedBlackTree, - - insert: function(after, node) { - var parent, grandpa, uncle; - - if (after) { - node.P = after; - node.N = after.N; - if (after.N) after.N.P = node; - after.N = node; - if (after.R) { - after = after.R; - while (after.L) after = after.L; - after.L = node; - } else { - after.R = node; - } - parent = after; - } else if (this._) { - after = RedBlackFirst(this._); - node.P = null; - node.N = after; - after.P = after.L = node; - parent = after; - } else { - node.P = node.N = null; - this._ = node; - parent = null; - } - node.L = node.R = null; - node.U = parent; - node.C = true; - - after = node; - while (parent && parent.C) { - grandpa = parent.U; - if (parent === grandpa.L) { - uncle = grandpa.R; - if (uncle && uncle.C) { - parent.C = uncle.C = false; - grandpa.C = true; - after = grandpa; - } else { - if (after === parent.R) { - RedBlackRotateLeft(this, parent); - after = parent; - parent = after.U; - } - parent.C = false; - grandpa.C = true; - RedBlackRotateRight(this, grandpa); - } - } else { - uncle = grandpa.L; - if (uncle && uncle.C) { - parent.C = uncle.C = false; - grandpa.C = true; - after = grandpa; - } else { - if (after === parent.L) { - RedBlackRotateRight(this, parent); - after = parent; - parent = after.U; - } - parent.C = false; - grandpa.C = true; - RedBlackRotateLeft(this, grandpa); - } - } - parent = after.U; - } - this._.C = false; - }, - - remove: function(node) { - if (node.N) node.N.P = node.P; - if (node.P) node.P.N = node.N; - node.N = node.P = null; - - var parent = node.U, - sibling, - left = node.L, - right = node.R, - next, - red; - - if (!left) next = right; - else if (!right) next = left; - else next = RedBlackFirst(right); - - if (parent) { - if (parent.L === node) parent.L = next; - else parent.R = next; - } else { - this._ = next; - } - - if (left && right) { - red = next.C; - next.C = node.C; - next.L = left; - left.U = next; - if (next !== right) { - parent = next.U; - next.U = node.U; - node = next.R; - parent.L = node; - next.R = right; - right.U = next; - } else { - next.U = parent; - parent = next; - node = next.R; - } - } else { - red = node.C; - node = next; - } - - if (node) node.U = parent; - if (red) return; - if (node && node.C) { node.C = false; return; } - - do { - if (node === this._) break; - if (node === parent.L) { - sibling = parent.R; - if (sibling.C) { - sibling.C = false; - parent.C = true; - RedBlackRotateLeft(this, parent); - sibling = parent.R; - } - if ((sibling.L && sibling.L.C) - || (sibling.R && sibling.R.C)) { - if (!sibling.R || !sibling.R.C) { - sibling.L.C = false; - sibling.C = true; - RedBlackRotateRight(this, sibling); - sibling = parent.R; - } - sibling.C = parent.C; - parent.C = sibling.R.C = false; - RedBlackRotateLeft(this, parent); - node = this._; - break; - } - } else { - sibling = parent.L; - if (sibling.C) { - sibling.C = false; - parent.C = true; - RedBlackRotateRight(this, parent); - sibling = parent.L; - } - if ((sibling.L && sibling.L.C) - || (sibling.R && sibling.R.C)) { - if (!sibling.L || !sibling.L.C) { - sibling.R.C = false; - sibling.C = true; - RedBlackRotateLeft(this, sibling); - sibling = parent.L; - } - sibling.C = parent.C; - parent.C = sibling.L.C = false; - RedBlackRotateRight(this, parent); - node = this._; - break; - } - } - sibling.C = true; - node = parent; - parent = parent.U; - } while (!node.C); - - if (node) node.C = false; - } - }; - - function RedBlackRotateLeft(tree, node) { - var p = node, - q = node.R, - parent = p.U; - - if (parent) { - if (parent.L === p) parent.L = q; - else parent.R = q; - } else { - tree._ = q; - } - - q.U = parent; - p.U = q; - p.R = q.L; - if (p.R) p.R.U = p; - q.L = p; - } - - function RedBlackRotateRight(tree, node) { - var p = node, - q = node.L, - parent = p.U; - - if (parent) { - if (parent.L === p) parent.L = q; - else parent.R = q; - } else { - tree._ = q; - } - - q.U = parent; - p.U = q; - p.L = q.R; - if (p.L) p.L.U = p; - q.R = p; - } - - function RedBlackFirst(node) { - while (node.L) node = node.L; - return node; - } - - function createEdge(left, right, v0, v1) { - var edge = [null, null], - index = edges.push(edge) - 1; - edge.left = left; - edge.right = right; - if (v0) setEdgeEnd(edge, left, right, v0); - if (v1) setEdgeEnd(edge, right, left, v1); - cells[left.index].halfedges.push(index); - cells[right.index].halfedges.push(index); - return edge; - } - - function createBorderEdge(left, v0, v1) { - var edge = [v0, v1]; - edge.left = left; - return edge; - } - - function setEdgeEnd(edge, left, right, vertex) { - if (!edge[0] && !edge[1]) { - edge[0] = vertex; - edge.left = left; - edge.right = right; - } else if (edge.left === right) { - edge[1] = vertex; - } else { - edge[0] = vertex; - } - } - - // Liang–Barsky line clipping. - function clipEdge(edge, x0, y0, x1, y1) { - var a = edge[0], - b = edge[1], - ax = a[0], - ay = a[1], - bx = b[0], - by = b[1], - t0 = 0, - t1 = 1, - dx = bx - ax, - dy = by - ay, - r; - - r = x0 - ax; - if (!dx && r > 0) return; - r /= dx; - if (dx < 0) { - if (r < t0) return; - if (r < t1) t1 = r; - } else if (dx > 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } - - r = x1 - ax; - if (!dx && r < 0) return; - r /= dx; - if (dx < 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } else if (dx > 0) { - if (r < t0) return; - if (r < t1) t1 = r; - } - - r = y0 - ay; - if (!dy && r > 0) return; - r /= dy; - if (dy < 0) { - if (r < t0) return; - if (r < t1) t1 = r; - } else if (dy > 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } - - r = y1 - ay; - if (!dy && r < 0) return; - r /= dy; - if (dy < 0) { - if (r > t1) return; - if (r > t0) t0 = r; - } else if (dy > 0) { - if (r < t0) return; - if (r < t1) t1 = r; - } - - if (!(t0 > 0) && !(t1 < 1)) return true; // TODO Better check? - - if (t0 > 0) edge[0] = [ax + t0 * dx, ay + t0 * dy]; - if (t1 < 1) edge[1] = [ax + t1 * dx, ay + t1 * dy]; - return true; - } - - function connectEdge(edge, x0, y0, x1, y1) { - var v1 = edge[1]; - if (v1) return true; - - var v0 = edge[0], - left = edge.left, - right = edge.right, - lx = left[0], - ly = left[1], - rx = right[0], - ry = right[1], - fx = (lx + rx) / 2, - fy = (ly + ry) / 2, - fm, - fb; - - if (ry === ly) { - if (fx < x0 || fx >= x1) return; - if (lx > rx) { - if (!v0) v0 = [fx, y0]; - else if (v0[1] >= y1) return; - v1 = [fx, y1]; - } else { - if (!v0) v0 = [fx, y1]; - else if (v0[1] < y0) return; - v1 = [fx, y0]; - } - } else { - fm = (lx - rx) / (ry - ly); - fb = fy - fm * fx; - if (fm < -1 || fm > 1) { - if (lx > rx) { - if (!v0) v0 = [(y0 - fb) / fm, y0]; - else if (v0[1] >= y1) return; - v1 = [(y1 - fb) / fm, y1]; - } else { - if (!v0) v0 = [(y1 - fb) / fm, y1]; - else if (v0[1] < y0) return; - v1 = [(y0 - fb) / fm, y0]; - } - } else { - if (ly < ry) { - if (!v0) v0 = [x0, fm * x0 + fb]; - else if (v0[0] >= x1) return; - v1 = [x1, fm * x1 + fb]; - } else { - if (!v0) v0 = [x1, fm * x1 + fb]; - else if (v0[0] < x0) return; - v1 = [x0, fm * x0 + fb]; - } - } - } - - edge[0] = v0; - edge[1] = v1; - return true; - } - - function clipEdges(x0, y0, x1, y1) { - var i = edges.length, - edge; - - while (i--) { - if (!connectEdge(edge = edges[i], x0, y0, x1, y1) - || !clipEdge(edge, x0, y0, x1, y1) - || !(Math.abs(edge[0][0] - edge[1][0]) > epsilon$4 - || Math.abs(edge[0][1] - edge[1][1]) > epsilon$4)) { - delete edges[i]; - } - } - } - - function createCell(site) { - return cells[site.index] = { - site: site, - halfedges: [] - }; - } - - function cellHalfedgeAngle(cell, edge) { - var site = cell.site, - va = edge.left, - vb = edge.right; - if (site === vb) vb = va, va = site; - if (vb) return Math.atan2(vb[1] - va[1], vb[0] - va[0]); - if (site === va) va = edge[1], vb = edge[0]; - else va = edge[0], vb = edge[1]; - return Math.atan2(va[0] - vb[0], vb[1] - va[1]); - } - - function cellHalfedgeStart(cell, edge) { - return edge[+(edge.left !== cell.site)]; - } - - function cellHalfedgeEnd(cell, edge) { - return edge[+(edge.left === cell.site)]; - } - - function sortCellHalfedges() { - for (var i = 0, n = cells.length, cell, halfedges, j, m; i < n; ++i) { - if ((cell = cells[i]) && (m = (halfedges = cell.halfedges).length)) { - var index = new Array(m), - array = new Array(m); - for (j = 0; j < m; ++j) index[j] = j, array[j] = cellHalfedgeAngle(cell, edges[halfedges[j]]); - index.sort(function(i, j) { return array[j] - array[i]; }); - for (j = 0; j < m; ++j) array[j] = halfedges[index[j]]; - for (j = 0; j < m; ++j) halfedges[j] = array[j]; - } - } - } - - function clipCells(x0, y0, x1, y1) { - var nCells = cells.length, - iCell, - cell, - site, - iHalfedge, - halfedges, - nHalfedges, - start, - startX, - startY, - end, - endX, - endY, - cover = true; - - for (iCell = 0; iCell < nCells; ++iCell) { - if (cell = cells[iCell]) { - site = cell.site; - halfedges = cell.halfedges; - iHalfedge = halfedges.length; - - // Remove any dangling clipped edges. - while (iHalfedge--) { - if (!edges[halfedges[iHalfedge]]) { - halfedges.splice(iHalfedge, 1); - } - } - - // Insert any border edges as necessary. - iHalfedge = 0, nHalfedges = halfedges.length; - while (iHalfedge < nHalfedges) { - end = cellHalfedgeEnd(cell, edges[halfedges[iHalfedge]]), endX = end[0], endY = end[1]; - start = cellHalfedgeStart(cell, edges[halfedges[++iHalfedge % nHalfedges]]), startX = start[0], startY = start[1]; - if (Math.abs(endX - startX) > epsilon$4 || Math.abs(endY - startY) > epsilon$4) { - halfedges.splice(iHalfedge, 0, edges.push(createBorderEdge(site, end, - Math.abs(endX - x0) < epsilon$4 && y1 - endY > epsilon$4 ? [x0, Math.abs(startX - x0) < epsilon$4 ? startY : y1] - : Math.abs(endY - y1) < epsilon$4 && x1 - endX > epsilon$4 ? [Math.abs(startY - y1) < epsilon$4 ? startX : x1, y1] - : Math.abs(endX - x1) < epsilon$4 && endY - y0 > epsilon$4 ? [x1, Math.abs(startX - x1) < epsilon$4 ? startY : y0] - : Math.abs(endY - y0) < epsilon$4 && endX - x0 > epsilon$4 ? [Math.abs(startY - y0) < epsilon$4 ? startX : x0, y0] - : null)) - 1); - ++nHalfedges; - } - } - - if (nHalfedges) cover = false; - } - } - - // If there weren’t any edges, have the closest site cover the extent. - // It doesn’t matter which corner of the extent we measure! - if (cover) { - var dx, dy, d2, dc = Infinity; - - for (iCell = 0, cover = null; iCell < nCells; ++iCell) { - if (cell = cells[iCell]) { - site = cell.site; - dx = site[0] - x0; - dy = site[1] - y0; - d2 = dx * dx + dy * dy; - if (d2 < dc) dc = d2, cover = cell; - } - } - - if (cover) { - var v00 = [x0, y0], v01 = [x0, y1], v11 = [x1, y1], v10 = [x1, y0]; - cover.halfedges.push( - edges.push(createBorderEdge(site = cover.site, v00, v01)) - 1, - edges.push(createBorderEdge(site, v01, v11)) - 1, - edges.push(createBorderEdge(site, v11, v10)) - 1, - edges.push(createBorderEdge(site, v10, v00)) - 1 - ); - } - } - - // Lastly delete any cells with no edges; these were entirely clipped. - for (iCell = 0; iCell < nCells; ++iCell) { - if (cell = cells[iCell]) { - if (!cell.halfedges.length) { - delete cells[iCell]; - } - } - } - } - - var circlePool = []; - - var firstCircle; - - function Circle() { - RedBlackNode(this); - this.x = - this.y = - this.arc = - this.site = - this.cy = null; - } - - function attachCircle(arc) { - var lArc = arc.P, - rArc = arc.N; - - if (!lArc || !rArc) return; - - var lSite = lArc.site, - cSite = arc.site, - rSite = rArc.site; - - if (lSite === rSite) return; - - var bx = cSite[0], - by = cSite[1], - ax = lSite[0] - bx, - ay = lSite[1] - by, - cx = rSite[0] - bx, - cy = rSite[1] - by; - - var d = 2 * (ax * cy - ay * cx); - if (d >= -epsilon2$2) return; - - var ha = ax * ax + ay * ay, - hc = cx * cx + cy * cy, - x = (cy * ha - ay * hc) / d, - y = (ax * hc - cx * ha) / d; - - var circle = circlePool.pop() || new Circle; - circle.arc = arc; - circle.site = cSite; - circle.x = x + bx; - circle.y = (circle.cy = y + by) + Math.sqrt(x * x + y * y); // y bottom - - arc.circle = circle; - - var before = null, - node = circles._; - - while (node) { - if (circle.y < node.y || (circle.y === node.y && circle.x <= node.x)) { - if (node.L) node = node.L; - else { before = node.P; break; } - } else { - if (node.R) node = node.R; - else { before = node; break; } - } - } - - circles.insert(before, circle); - if (!before) firstCircle = circle; - } - - function detachCircle(arc) { - var circle = arc.circle; - if (circle) { - if (!circle.P) firstCircle = circle.N; - circles.remove(circle); - circlePool.push(circle); - RedBlackNode(circle); - arc.circle = null; - } - } - - var beachPool = []; - - function Beach() { - RedBlackNode(this); - this.edge = - this.site = - this.circle = null; - } - - function createBeach(site) { - var beach = beachPool.pop() || new Beach; - beach.site = site; - return beach; - } - - function detachBeach(beach) { - detachCircle(beach); - beaches.remove(beach); - beachPool.push(beach); - RedBlackNode(beach); - } - - function removeBeach(beach) { - var circle = beach.circle, - x = circle.x, - y = circle.cy, - vertex = [x, y], - previous = beach.P, - next = beach.N, - disappearing = [beach]; - - detachBeach(beach); - - var lArc = previous; - while (lArc.circle - && Math.abs(x - lArc.circle.x) < epsilon$4 - && Math.abs(y - lArc.circle.cy) < epsilon$4) { - previous = lArc.P; - disappearing.unshift(lArc); - detachBeach(lArc); - lArc = previous; - } - - disappearing.unshift(lArc); - detachCircle(lArc); - - var rArc = next; - while (rArc.circle - && Math.abs(x - rArc.circle.x) < epsilon$4 - && Math.abs(y - rArc.circle.cy) < epsilon$4) { - next = rArc.N; - disappearing.push(rArc); - detachBeach(rArc); - rArc = next; - } - - disappearing.push(rArc); - detachCircle(rArc); - - var nArcs = disappearing.length, - iArc; - for (iArc = 1; iArc < nArcs; ++iArc) { - rArc = disappearing[iArc]; - lArc = disappearing[iArc - 1]; - setEdgeEnd(rArc.edge, lArc.site, rArc.site, vertex); - } - - lArc = disappearing[0]; - rArc = disappearing[nArcs - 1]; - rArc.edge = createEdge(lArc.site, rArc.site, null, vertex); - - attachCircle(lArc); - attachCircle(rArc); - } - - function addBeach(site) { - var x = site[0], - directrix = site[1], - lArc, - rArc, - dxl, - dxr, - node = beaches._; - - while (node) { - dxl = leftBreakPoint(node, directrix) - x; - if (dxl > epsilon$4) node = node.L; else { - dxr = x - rightBreakPoint(node, directrix); - if (dxr > epsilon$4) { - if (!node.R) { - lArc = node; - break; - } - node = node.R; - } else { - if (dxl > -epsilon$4) { - lArc = node.P; - rArc = node; - } else if (dxr > -epsilon$4) { - lArc = node; - rArc = node.N; - } else { - lArc = rArc = node; - } - break; - } - } - } - - createCell(site); - var newArc = createBeach(site); - beaches.insert(lArc, newArc); - - if (!lArc && !rArc) return; - - if (lArc === rArc) { - detachCircle(lArc); - rArc = createBeach(lArc.site); - beaches.insert(newArc, rArc); - newArc.edge = rArc.edge = createEdge(lArc.site, newArc.site); - attachCircle(lArc); - attachCircle(rArc); - return; - } - - if (!rArc) { // && lArc - newArc.edge = createEdge(lArc.site, newArc.site); - return; - } - - // else lArc !== rArc - detachCircle(lArc); - detachCircle(rArc); - - var lSite = lArc.site, - ax = lSite[0], - ay = lSite[1], - bx = site[0] - ax, - by = site[1] - ay, - rSite = rArc.site, - cx = rSite[0] - ax, - cy = rSite[1] - ay, - d = 2 * (bx * cy - by * cx), - hb = bx * bx + by * by, - hc = cx * cx + cy * cy, - vertex = [(cy * hb - by * hc) / d + ax, (bx * hc - cx * hb) / d + ay]; - - setEdgeEnd(rArc.edge, lSite, rSite, vertex); - newArc.edge = createEdge(lSite, site, null, vertex); - rArc.edge = createEdge(site, rSite, null, vertex); - attachCircle(lArc); - attachCircle(rArc); - } - - function leftBreakPoint(arc, directrix) { - var site = arc.site, - rfocx = site[0], - rfocy = site[1], - pby2 = rfocy - directrix; - - if (!pby2) return rfocx; - - var lArc = arc.P; - if (!lArc) return -Infinity; - - site = lArc.site; - var lfocx = site[0], - lfocy = site[1], - plby2 = lfocy - directrix; - - if (!plby2) return lfocx; - - var hl = lfocx - rfocx, - aby2 = 1 / pby2 - 1 / plby2, - b = hl / plby2; - - if (aby2) return (-b + Math.sqrt(b * b - 2 * aby2 * (hl * hl / (-2 * plby2) - lfocy + plby2 / 2 + rfocy - pby2 / 2))) / aby2 + rfocx; - - return (rfocx + lfocx) / 2; - } - - function rightBreakPoint(arc, directrix) { - var rArc = arc.N; - if (rArc) return leftBreakPoint(rArc, directrix); - var site = arc.site; - return site[1] === directrix ? site[0] : Infinity; - } - - var epsilon$4 = 1e-6; - var epsilon2$2 = 1e-12; - var beaches; - var cells; - var circles; - var edges; - - function triangleArea(a, b, c) { - return (a[0] - c[0]) * (b[1] - a[1]) - (a[0] - b[0]) * (c[1] - a[1]); - } - - function lexicographic(a, b) { - return b[1] - a[1] - || b[0] - a[0]; - } - - function Diagram(sites, extent) { - var site = sites.sort(lexicographic).pop(), - x, - y, - circle; - - edges = []; - cells = new Array(sites.length); - beaches = new RedBlackTree; - circles = new RedBlackTree; - - while (true) { - circle = firstCircle; - if (site && (!circle || site[1] < circle.y || (site[1] === circle.y && site[0] < circle.x))) { - if (site[0] !== x || site[1] !== y) { - addBeach(site); - x = site[0], y = site[1]; - } - site = sites.pop(); - } else if (circle) { - removeBeach(circle.arc); - } else { - break; - } - } - - sortCellHalfedges(); - - if (extent) { - var x0 = +extent[0][0], - y0 = +extent[0][1], - x1 = +extent[1][0], - y1 = +extent[1][1]; - clipEdges(x0, y0, x1, y1); - clipCells(x0, y0, x1, y1); - } - - this.edges = edges; - this.cells = cells; - - beaches = - circles = - edges = - cells = null; - } - - Diagram.prototype = { - constructor: Diagram, - - polygons: function() { - var edges = this.edges; - - return this.cells.map(function(cell) { - var polygon = cell.halfedges.map(function(i) { return cellHalfedgeStart(cell, edges[i]); }); - polygon.data = cell.site.data; - return polygon; - }); - }, - - triangles: function() { - var triangles = [], - edges = this.edges; - - this.cells.forEach(function(cell, i) { - if (!(m = (halfedges = cell.halfedges).length)) return; - var site = cell.site, - halfedges, - j = -1, - m, - s0, - e1 = edges[halfedges[m - 1]], - s1 = e1.left === site ? e1.right : e1.left; - - while (++j < m) { - s0 = s1; - e1 = edges[halfedges[j]]; - s1 = e1.left === site ? e1.right : e1.left; - if (s0 && s1 && i < s0.index && i < s1.index && triangleArea(site, s0, s1) < 0) { - triangles.push([site.data, s0.data, s1.data]); - } - } - }); - - return triangles; - }, - - links: function() { - return this.edges.filter(function(edge) { - return edge.right; - }).map(function(edge) { - return { - source: edge.left.data, - target: edge.right.data - }; - }); - }, - - find: function(x, y, radius) { - var that = this, i0, i1 = that._found || 0, n = that.cells.length, cell; - - // Use the previously-found cell, or start with an arbitrary one. - while (!(cell = that.cells[i1])) if (++i1 >= n) return null; - var dx = x - cell.site[0], dy = y - cell.site[1], d2 = dx * dx + dy * dy; - - // Traverse the half-edges to find a closer cell, if any. - do { - cell = that.cells[i0 = i1], i1 = null; - cell.halfedges.forEach(function(e) { - var edge = that.edges[e], v = edge.left; - if ((v === cell.site || !v) && !(v = edge.right)) return; - var vx = x - v[0], vy = y - v[1], v2 = vx * vx + vy * vy; - if (v2 < d2) d2 = v2, i1 = v.index; - }); - } while (i1 !== null); - - that._found = i0; - - return radius == null || d2 <= radius * radius ? cell.site : null; - } - }; - - function voronoi() { - var x = x$4, - y = y$4, - extent = null; - - function voronoi(data) { - return new Diagram(data.map(function(d, i) { - var s = [Math.round(x(d, i, data) / epsilon$4) * epsilon$4, Math.round(y(d, i, data) / epsilon$4) * epsilon$4]; - s.index = i; - s.data = d; - return s; - }), extent); - } - - voronoi.polygons = function(data) { - return voronoi(data).polygons(); - }; - - voronoi.links = function(data) { - return voronoi(data).links(); - }; - - voronoi.triangles = function(data) { - return voronoi(data).triangles(); - }; - - voronoi.x = function(_) { - return arguments.length ? (x = typeof _ === "function" ? _ : constant$c(+_), voronoi) : x; - }; - - voronoi.y = function(_) { - return arguments.length ? (y = typeof _ === "function" ? _ : constant$c(+_), voronoi) : y; - }; - - voronoi.extent = function(_) { - return arguments.length ? (extent = _ == null ? null : [[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]], voronoi) : extent && [[extent[0][0], extent[0][1]], [extent[1][0], extent[1][1]]]; - }; - - voronoi.size = function(_) { - return arguments.length ? (extent = _ == null ? null : [[0, 0], [+_[0], +_[1]]], voronoi) : extent && [extent[1][0] - extent[0][0], extent[1][1] - extent[0][1]]; - }; - - return voronoi; - } - - function constant$d(x) { - return function() { - return x; - }; - } - - function ZoomEvent(target, type, transform) { - this.target = target; - this.type = type; - this.transform = transform; - } - - function Transform(k, x, y) { - this.k = k; - this.x = x; - this.y = y; - } - - Transform.prototype = { - constructor: Transform, - scale: function(k) { - return k === 1 ? this : new Transform(this.k * k, this.x, this.y); - }, - translate: function(x, y) { - return x === 0 & y === 0 ? this : new Transform(this.k, this.x + this.k * x, this.y + this.k * y); - }, - apply: function(point) { - return [point[0] * this.k + this.x, point[1] * this.k + this.y]; - }, - applyX: function(x) { - return x * this.k + this.x; - }, - applyY: function(y) { - return y * this.k + this.y; - }, - invert: function(location) { - return [(location[0] - this.x) / this.k, (location[1] - this.y) / this.k]; - }, - invertX: function(x) { - return (x - this.x) / this.k; - }, - invertY: function(y) { - return (y - this.y) / this.k; - }, - rescaleX: function(x) { - return x.copy().domain(x.range().map(this.invertX, this).map(x.invert, x)); - }, - rescaleY: function(y) { - return y.copy().domain(y.range().map(this.invertY, this).map(y.invert, y)); - }, - toString: function() { - return "translate(" + this.x + "," + this.y + ") scale(" + this.k + ")"; - } - }; - - var identity$9 = new Transform(1, 0, 0); - - transform$1.prototype = Transform.prototype; - - function transform$1(node) { - while (!node.__zoom) if (!(node = node.parentNode)) return identity$9; - return node.__zoom; - } - - function nopropagation$2() { - event.stopImmediatePropagation(); - } - - function noevent$2() { - event.preventDefault(); - event.stopImmediatePropagation(); - } - - // Ignore right-click, since that should open the context menu. - function defaultFilter$2() { - return !event.ctrlKey && !event.button; - } - - function defaultExtent$1() { - var e = this; - if (e instanceof SVGElement) { - e = e.ownerSVGElement || e; - if (e.hasAttribute("viewBox")) { - e = e.viewBox.baseVal; - return [[e.x, e.y], [e.x + e.width, e.y + e.height]]; - } - return [[0, 0], [e.width.baseVal.value, e.height.baseVal.value]]; - } - return [[0, 0], [e.clientWidth, e.clientHeight]]; - } - - function defaultTransform() { - return this.__zoom || identity$9; - } - - function defaultWheelDelta() { - return -event.deltaY * (event.deltaMode === 1 ? 0.05 : event.deltaMode ? 1 : 0.002); - } - - function defaultTouchable$2() { - return navigator.maxTouchPoints || ("ontouchstart" in this); - } - - function defaultConstrain(transform, extent, translateExtent) { - var dx0 = transform.invertX(extent[0][0]) - translateExtent[0][0], - dx1 = transform.invertX(extent[1][0]) - translateExtent[1][0], - dy0 = transform.invertY(extent[0][1]) - translateExtent[0][1], - dy1 = transform.invertY(extent[1][1]) - translateExtent[1][1]; - return transform.translate( - dx1 > dx0 ? (dx0 + dx1) / 2 : Math.min(0, dx0) || Math.max(0, dx1), - dy1 > dy0 ? (dy0 + dy1) / 2 : Math.min(0, dy0) || Math.max(0, dy1) - ); - } - - function zoom() { - var filter = defaultFilter$2, - extent = defaultExtent$1, - constrain = defaultConstrain, - wheelDelta = defaultWheelDelta, - touchable = defaultTouchable$2, - scaleExtent = [0, Infinity], - translateExtent = [[-Infinity, -Infinity], [Infinity, Infinity]], - duration = 250, - interpolate = interpolateZoom, - listeners = dispatch("start", "zoom", "end"), - touchstarting, - touchending, - touchDelay = 500, - wheelDelay = 150, - clickDistance2 = 0; - - function zoom(selection) { - selection - .property("__zoom", defaultTransform) - .on("wheel.zoom", wheeled) - .on("mousedown.zoom", mousedowned) - .on("dblclick.zoom", dblclicked) - .filter(touchable) - .on("touchstart.zoom", touchstarted) - .on("touchmove.zoom", touchmoved) - .on("touchend.zoom touchcancel.zoom", touchended) - .style("touch-action", "none") - .style("-webkit-tap-highlight-color", "rgba(0,0,0,0)"); - } - - zoom.transform = function(collection, transform, point) { - var selection = collection.selection ? collection.selection() : collection; - selection.property("__zoom", defaultTransform); - if (collection !== selection) { - schedule(collection, transform, point); - } else { - selection.interrupt().each(function() { - gesture(this, arguments) - .start() - .zoom(null, typeof transform === "function" ? transform.apply(this, arguments) : transform) - .end(); - }); - } - }; - - zoom.scaleBy = function(selection, k, p) { - zoom.scaleTo(selection, function() { - var k0 = this.__zoom.k, - k1 = typeof k === "function" ? k.apply(this, arguments) : k; - return k0 * k1; - }, p); - }; - - zoom.scaleTo = function(selection, k, p) { - zoom.transform(selection, function() { - var e = extent.apply(this, arguments), - t0 = this.__zoom, - p0 = p == null ? centroid(e) : typeof p === "function" ? p.apply(this, arguments) : p, - p1 = t0.invert(p0), - k1 = typeof k === "function" ? k.apply(this, arguments) : k; - return constrain(translate(scale(t0, k1), p0, p1), e, translateExtent); - }, p); - }; - - zoom.translateBy = function(selection, x, y) { - zoom.transform(selection, function() { - return constrain(this.__zoom.translate( - typeof x === "function" ? x.apply(this, arguments) : x, - typeof y === "function" ? y.apply(this, arguments) : y - ), extent.apply(this, arguments), translateExtent); - }); - }; - - zoom.translateTo = function(selection, x, y, p) { - zoom.transform(selection, function() { - var e = extent.apply(this, arguments), - t = this.__zoom, - p0 = p == null ? centroid(e) : typeof p === "function" ? p.apply(this, arguments) : p; - return constrain(identity$9.translate(p0[0], p0[1]).scale(t.k).translate( - typeof x === "function" ? -x.apply(this, arguments) : -x, - typeof y === "function" ? -y.apply(this, arguments) : -y - ), e, translateExtent); - }, p); - }; - - function scale(transform, k) { - k = Math.max(scaleExtent[0], Math.min(scaleExtent[1], k)); - return k === transform.k ? transform : new Transform(k, transform.x, transform.y); - } - - function translate(transform, p0, p1) { - var x = p0[0] - p1[0] * transform.k, y = p0[1] - p1[1] * transform.k; - return x === transform.x && y === transform.y ? transform : new Transform(transform.k, x, y); - } - - function centroid(extent) { - return [(+extent[0][0] + +extent[1][0]) / 2, (+extent[0][1] + +extent[1][1]) / 2]; - } - - function schedule(transition, transform, point) { - transition - .on("start.zoom", function() { gesture(this, arguments).start(); }) - .on("interrupt.zoom end.zoom", function() { gesture(this, arguments).end(); }) - .tween("zoom", function() { - var that = this, - args = arguments, - g = gesture(that, args), - e = extent.apply(that, args), - p = point == null ? centroid(e) : typeof point === "function" ? point.apply(that, args) : point, - w = Math.max(e[1][0] - e[0][0], e[1][1] - e[0][1]), - a = that.__zoom, - b = typeof transform === "function" ? transform.apply(that, args) : transform, - i = interpolate(a.invert(p).concat(w / a.k), b.invert(p).concat(w / b.k)); - return function(t) { - if (t === 1) t = b; // Avoid rounding error on end. - else { var l = i(t), k = w / l[2]; t = new Transform(k, p[0] - l[0] * k, p[1] - l[1] * k); } - g.zoom(null, t); - }; - }); - } - - function gesture(that, args, clean) { - return (!clean && that.__zooming) || new Gesture(that, args); - } - - function Gesture(that, args) { - this.that = that; - this.args = args; - this.active = 0; - this.extent = extent.apply(that, args); - this.taps = 0; - } - - Gesture.prototype = { - start: function() { - if (++this.active === 1) { - this.that.__zooming = this; - this.emit("start"); - } - return this; - }, - zoom: function(key, transform) { - if (this.mouse && key !== "mouse") this.mouse[1] = transform.invert(this.mouse[0]); - if (this.touch0 && key !== "touch") this.touch0[1] = transform.invert(this.touch0[0]); - if (this.touch1 && key !== "touch") this.touch1[1] = transform.invert(this.touch1[0]); - this.that.__zoom = transform; - this.emit("zoom"); - return this; - }, - end: function() { - if (--this.active === 0) { - delete this.that.__zooming; - this.emit("end"); - } - return this; - }, - emit: function(type) { - customEvent(new ZoomEvent(zoom, type, this.that.__zoom), listeners.apply, listeners, [type, this.that, this.args]); - } - }; - - function wheeled() { - if (!filter.apply(this, arguments)) return; - var g = gesture(this, arguments), - t = this.__zoom, - k = Math.max(scaleExtent[0], Math.min(scaleExtent[1], t.k * Math.pow(2, wheelDelta.apply(this, arguments)))), - p = mouse(this); - - // If the mouse is in the same location as before, reuse it. - // If there were recent wheel events, reset the wheel idle timeout. - if (g.wheel) { - if (g.mouse[0][0] !== p[0] || g.mouse[0][1] !== p[1]) { - g.mouse[1] = t.invert(g.mouse[0] = p); - } - clearTimeout(g.wheel); - } - - // If this wheel event won’t trigger a transform change, ignore it. - else if (t.k === k) return; - - // Otherwise, capture the mouse point and location at the start. - else { - g.mouse = [p, t.invert(p)]; - interrupt(this); - g.start(); - } - - noevent$2(); - g.wheel = setTimeout(wheelidled, wheelDelay); - g.zoom("mouse", constrain(translate(scale(t, k), g.mouse[0], g.mouse[1]), g.extent, translateExtent)); - - function wheelidled() { - g.wheel = null; - g.end(); - } - } - - function mousedowned() { - if (touchending || !filter.apply(this, arguments)) return; - var g = gesture(this, arguments, true), - v = select(event.view).on("mousemove.zoom", mousemoved, true).on("mouseup.zoom", mouseupped, true), - p = mouse(this), - x0 = event.clientX, - y0 = event.clientY; - - dragDisable(event.view); - nopropagation$2(); - g.mouse = [p, this.__zoom.invert(p)]; - interrupt(this); - g.start(); - - function mousemoved() { - noevent$2(); - if (!g.moved) { - var dx = event.clientX - x0, dy = event.clientY - y0; - g.moved = dx * dx + dy * dy > clickDistance2; - } - g.zoom("mouse", constrain(translate(g.that.__zoom, g.mouse[0] = mouse(g.that), g.mouse[1]), g.extent, translateExtent)); - } - - function mouseupped() { - v.on("mousemove.zoom mouseup.zoom", null); - yesdrag(event.view, g.moved); - noevent$2(); - g.end(); - } - } - - function dblclicked() { - if (!filter.apply(this, arguments)) return; - var t0 = this.__zoom, - p0 = mouse(this), - p1 = t0.invert(p0), - k1 = t0.k * (event.shiftKey ? 0.5 : 2), - t1 = constrain(translate(scale(t0, k1), p0, p1), extent.apply(this, arguments), translateExtent); - - noevent$2(); - if (duration > 0) select(this).transition().duration(duration).call(schedule, t1, p0); - else select(this).call(zoom.transform, t1); - } - - function touchstarted() { - if (!filter.apply(this, arguments)) return; - var touches = event.touches, - n = touches.length, - g = gesture(this, arguments, event.changedTouches.length === n), - started, i, t, p; - - nopropagation$2(); - for (i = 0; i < n; ++i) { - t = touches[i], p = touch(this, touches, t.identifier); - p = [p, this.__zoom.invert(p), t.identifier]; - if (!g.touch0) g.touch0 = p, started = true, g.taps = 1 + !!touchstarting; - else if (!g.touch1 && g.touch0[2] !== p[2]) g.touch1 = p, g.taps = 0; - } - - if (touchstarting) touchstarting = clearTimeout(touchstarting); - - if (started) { - if (g.taps < 2) touchstarting = setTimeout(function() { touchstarting = null; }, touchDelay); - interrupt(this); - g.start(); - } - } - - function touchmoved() { - if (!this.__zooming) return; - var g = gesture(this, arguments), - touches = event.changedTouches, - n = touches.length, i, t, p, l; - - noevent$2(); - if (touchstarting) touchstarting = clearTimeout(touchstarting); - g.taps = 0; - for (i = 0; i < n; ++i) { - t = touches[i], p = touch(this, touches, t.identifier); - if (g.touch0 && g.touch0[2] === t.identifier) g.touch0[0] = p; - else if (g.touch1 && g.touch1[2] === t.identifier) g.touch1[0] = p; - } - t = g.that.__zoom; - if (g.touch1) { - var p0 = g.touch0[0], l0 = g.touch0[1], - p1 = g.touch1[0], l1 = g.touch1[1], - dp = (dp = p1[0] - p0[0]) * dp + (dp = p1[1] - p0[1]) * dp, - dl = (dl = l1[0] - l0[0]) * dl + (dl = l1[1] - l0[1]) * dl; - t = scale(t, Math.sqrt(dp / dl)); - p = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2]; - l = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2]; - } - else if (g.touch0) p = g.touch0[0], l = g.touch0[1]; - else return; - g.zoom("touch", constrain(translate(t, p, l), g.extent, translateExtent)); - } - - function touchended() { - if (!this.__zooming) return; - var g = gesture(this, arguments), - touches = event.changedTouches, - n = touches.length, i, t; - - nopropagation$2(); - if (touchending) clearTimeout(touchending); - touchending = setTimeout(function() { touchending = null; }, touchDelay); - for (i = 0; i < n; ++i) { - t = touches[i]; - if (g.touch0 && g.touch0[2] === t.identifier) delete g.touch0; - else if (g.touch1 && g.touch1[2] === t.identifier) delete g.touch1; - } - if (g.touch1 && !g.touch0) g.touch0 = g.touch1, delete g.touch1; - if (g.touch0) g.touch0[1] = this.__zoom.invert(g.touch0[0]); - else { - g.end(); - // If this was a dbltap, reroute to the (optional) dblclick.zoom handler. - if (g.taps === 2) { - var p = select(this).on("dblclick.zoom"); - if (p) p.apply(this, arguments); - } - } - } - - zoom.wheelDelta = function(_) { - return arguments.length ? (wheelDelta = typeof _ === "function" ? _ : constant$d(+_), zoom) : wheelDelta; - }; - - zoom.filter = function(_) { - return arguments.length ? (filter = typeof _ === "function" ? _ : constant$d(!!_), zoom) : filter; - }; - - zoom.touchable = function(_) { - return arguments.length ? (touchable = typeof _ === "function" ? _ : constant$d(!!_), zoom) : touchable; - }; - - zoom.extent = function(_) { - return arguments.length ? (extent = typeof _ === "function" ? _ : constant$d([[+_[0][0], +_[0][1]], [+_[1][0], +_[1][1]]]), zoom) : extent; - }; - - zoom.scaleExtent = function(_) { - return arguments.length ? (scaleExtent[0] = +_[0], scaleExtent[1] = +_[1], zoom) : [scaleExtent[0], scaleExtent[1]]; - }; - - zoom.translateExtent = function(_) { - return arguments.length ? (translateExtent[0][0] = +_[0][0], translateExtent[1][0] = +_[1][0], translateExtent[0][1] = +_[0][1], translateExtent[1][1] = +_[1][1], zoom) : [[translateExtent[0][0], translateExtent[0][1]], [translateExtent[1][0], translateExtent[1][1]]]; - }; - - zoom.constrain = function(_) { - return arguments.length ? (constrain = _, zoom) : constrain; - }; - - zoom.duration = function(_) { - return arguments.length ? (duration = +_, zoom) : duration; - }; - - zoom.interpolate = function(_) { - return arguments.length ? (interpolate = _, zoom) : interpolate; - }; - - zoom.on = function() { - var value = listeners.on.apply(listeners, arguments); - return value === listeners ? zoom : value; - }; - - zoom.clickDistance = function(_) { - return arguments.length ? (clickDistance2 = (_ = +_) * _, zoom) : Math.sqrt(clickDistance2); - }; - - return zoom; - } - - var d3 = /*#__PURE__*/Object.freeze({ - __proto__: null, - version: version, - bisect: bisectRight, - bisectRight: bisectRight, - bisectLeft: bisectLeft, - ascending: ascending, - bisector: bisector, - cross: cross, - descending: descending, - deviation: deviation, - extent: extent, - histogram: histogram, - thresholdFreedmanDiaconis: freedmanDiaconis, - thresholdScott: scott, - thresholdSturges: thresholdSturges, - max: max, - mean: mean, - median: median, - merge: merge, - min: min, - pairs: pairs, - permute: permute, - quantile: threshold, - range: sequence, - scan: scan, - shuffle: shuffle, - sum: sum, - ticks: ticks, - tickIncrement: tickIncrement, - tickStep: tickStep, - transpose: transpose, - variance: variance, - zip: zip, - axisTop: axisTop, - axisRight: axisRight, - axisBottom: axisBottom, - axisLeft: axisLeft, - brush: brush, - brushX: brushX, - brushY: brushY, - brushSelection: brushSelection, - chord: chord, - ribbon: ribbon, - nest: nest, - set: set$2, - map: map$1, - keys: keys, - values: values, - entries: entries, - color: color, - rgb: rgb, - hsl: hsl, - lab: lab, - hcl: hcl, - lch: lch, - gray: gray, - cubehelix: cubehelix, - contours: contours, - contourDensity: density, - dispatch: dispatch, - drag: drag, - dragDisable: dragDisable, - dragEnable: yesdrag, - dsvFormat: dsvFormat, - csvParse: csvParse, - csvParseRows: csvParseRows, - csvFormat: csvFormat, - csvFormatBody: csvFormatBody, - csvFormatRows: csvFormatRows, - csvFormatRow: csvFormatRow, - csvFormatValue: csvFormatValue, - tsvParse: tsvParse, - tsvParseRows: tsvParseRows, - tsvFormat: tsvFormat, - tsvFormatBody: tsvFormatBody, - tsvFormatRows: tsvFormatRows, - tsvFormatRow: tsvFormatRow, - tsvFormatValue: tsvFormatValue, - autoType: autoType, - easeLinear: linear$1, - easeQuad: quadInOut, - easeQuadIn: quadIn, - easeQuadOut: quadOut, - easeQuadInOut: quadInOut, - easeCubic: cubicInOut, - easeCubicIn: cubicIn, - easeCubicOut: cubicOut, - easeCubicInOut: cubicInOut, - easePoly: polyInOut, - easePolyIn: polyIn, - easePolyOut: polyOut, - easePolyInOut: polyInOut, - easeSin: sinInOut, - easeSinIn: sinIn, - easeSinOut: sinOut, - easeSinInOut: sinInOut, - easeExp: expInOut, - easeExpIn: expIn, - easeExpOut: expOut, - easeExpInOut: expInOut, - easeCircle: circleInOut, - easeCircleIn: circleIn, - easeCircleOut: circleOut, - easeCircleInOut: circleInOut, - easeBounce: bounceOut, - easeBounceIn: bounceIn, - easeBounceOut: bounceOut, - easeBounceInOut: bounceInOut, - easeBack: backInOut, - easeBackIn: backIn, - easeBackOut: backOut, - easeBackInOut: backInOut, - easeElastic: elasticOut, - easeElasticIn: elasticIn, - easeElasticOut: elasticOut, - easeElasticInOut: elasticInOut, - blob: blob, - buffer: buffer, - dsv: dsv, - csv: csv$1, - tsv: tsv$1, - image: image, - json: json, - text: text, - xml: xml, - html: html, - svg: svg, - forceCenter: center$1, - forceCollide: collide, - forceLink: link, - forceManyBody: manyBody, - forceRadial: radial, - forceSimulation: simulation, - forceX: x$2, - forceY: y$2, - formatDefaultLocale: defaultLocale, - get format () { return format; }, - get formatPrefix () { return formatPrefix; }, - formatLocale: formatLocale, - formatSpecifier: formatSpecifier, - FormatSpecifier: FormatSpecifier, - precisionFixed: precisionFixed, - precisionPrefix: precisionPrefix, - precisionRound: precisionRound, - geoArea: area$1, - geoBounds: bounds, - geoCentroid: centroid, - geoCircle: circle, - geoClipAntimeridian: clipAntimeridian, - geoClipCircle: clipCircle, - geoClipExtent: extent$1, - geoClipRectangle: clipRectangle, - geoContains: contains$1, - geoDistance: distance, - geoGraticule: graticule, - geoGraticule10: graticule10, - geoInterpolate: interpolate$1, - geoLength: length$1, - geoPath: index$1, - geoAlbers: albers, - geoAlbersUsa: albersUsa, - geoAzimuthalEqualArea: azimuthalEqualArea, - geoAzimuthalEqualAreaRaw: azimuthalEqualAreaRaw, - geoAzimuthalEquidistant: azimuthalEquidistant, - geoAzimuthalEquidistantRaw: azimuthalEquidistantRaw, - geoConicConformal: conicConformal, - geoConicConformalRaw: conicConformalRaw, - geoConicEqualArea: conicEqualArea, - geoConicEqualAreaRaw: conicEqualAreaRaw, - geoConicEquidistant: conicEquidistant, - geoConicEquidistantRaw: conicEquidistantRaw, - geoEqualEarth: equalEarth, - geoEqualEarthRaw: equalEarthRaw, - geoEquirectangular: equirectangular, - geoEquirectangularRaw: equirectangularRaw, - geoGnomonic: gnomonic, - geoGnomonicRaw: gnomonicRaw, - geoIdentity: identity$5, - geoProjection: projection, - geoProjectionMutator: projectionMutator, - geoMercator: mercator, - geoMercatorRaw: mercatorRaw, - geoNaturalEarth1: naturalEarth1, - geoNaturalEarth1Raw: naturalEarth1Raw, - geoOrthographic: orthographic, - geoOrthographicRaw: orthographicRaw, - geoStereographic: stereographic, - geoStereographicRaw: stereographicRaw, - geoTransverseMercator: transverseMercator, - geoTransverseMercatorRaw: transverseMercatorRaw, - geoRotation: rotation, - geoStream: geoStream, - geoTransform: transform, - cluster: cluster, - hierarchy: hierarchy, - pack: index$2, - packSiblings: siblings, - packEnclose: enclose, - partition: partition, - stratify: stratify, - tree: tree, - treemap: index$3, - treemapBinary: binary, - treemapDice: treemapDice, - treemapSlice: treemapSlice, - treemapSliceDice: sliceDice, - treemapSquarify: squarify, - treemapResquarify: resquarify, - interpolate: interpolateValue, - interpolateArray: array$1, - interpolateBasis: basis$1, - interpolateBasisClosed: basisClosed, - interpolateDate: date, - interpolateDiscrete: discrete, - interpolateHue: hue$1, - interpolateNumber: interpolateNumber, - interpolateNumberArray: numberArray, - interpolateObject: object, - interpolateRound: interpolateRound, - interpolateString: interpolateString, - interpolateTransformCss: interpolateTransformCss, - interpolateTransformSvg: interpolateTransformSvg, - interpolateZoom: interpolateZoom, - interpolateRgb: interpolateRgb, - interpolateRgbBasis: rgbBasis, - interpolateRgbBasisClosed: rgbBasisClosed, - interpolateHsl: hsl$2, - interpolateHslLong: hslLong, - interpolateLab: lab$1, - interpolateHcl: hcl$2, - interpolateHclLong: hclLong, - interpolateCubehelix: cubehelix$2, - interpolateCubehelixLong: cubehelixLong, - piecewise: piecewise, - quantize: quantize, - path: path, - polygonArea: area$2, - polygonCentroid: centroid$1, - polygonHull: hull, - polygonContains: contains$2, - polygonLength: length$2, - quadtree: quadtree, - randomUniform: uniform, - randomNormal: normal, - randomLogNormal: logNormal, - randomBates: bates, - randomIrwinHall: irwinHall, - randomExponential: exponential$1, - scaleBand: band, - scalePoint: point$1, - scaleIdentity: identity$7, - scaleLinear: linear$2, - scaleLog: log$1, - scaleSymlog: symlog, - scaleOrdinal: ordinal, - scaleImplicit: implicit, - scalePow: pow$1, - scaleSqrt: sqrt$1, - scaleQuantile: quantile, - scaleQuantize: quantize$1, - scaleThreshold: threshold$1, - scaleTime: time, - scaleUtc: utcTime, - scaleSequential: sequential, - scaleSequentialLog: sequentialLog, - scaleSequentialPow: sequentialPow, - scaleSequentialSqrt: sequentialSqrt, - scaleSequentialSymlog: sequentialSymlog, - scaleSequentialQuantile: sequentialQuantile, - scaleDiverging: diverging, - scaleDivergingLog: divergingLog, - scaleDivergingPow: divergingPow, - scaleDivergingSqrt: divergingSqrt, - scaleDivergingSymlog: divergingSymlog, - tickFormat: tickFormat, - schemeCategory10: category10, - schemeAccent: Accent, - schemeDark2: Dark2, - schemePaired: Paired, - schemePastel1: Pastel1, - schemePastel2: Pastel2, - schemeSet1: Set1, - schemeSet2: Set2, - schemeSet3: Set3, - schemeTableau10: Tableau10, - interpolateBrBG: BrBG, - schemeBrBG: scheme, - interpolatePRGn: PRGn, - schemePRGn: scheme$1, - interpolatePiYG: PiYG, - schemePiYG: scheme$2, - interpolatePuOr: PuOr, - schemePuOr: scheme$3, - interpolateRdBu: RdBu, - schemeRdBu: scheme$4, - interpolateRdGy: RdGy, - schemeRdGy: scheme$5, - interpolateRdYlBu: RdYlBu, - schemeRdYlBu: scheme$6, - interpolateRdYlGn: RdYlGn, - schemeRdYlGn: scheme$7, - interpolateSpectral: Spectral, - schemeSpectral: scheme$8, - interpolateBuGn: BuGn, - schemeBuGn: scheme$9, - interpolateBuPu: BuPu, - schemeBuPu: scheme$a, - interpolateGnBu: GnBu, - schemeGnBu: scheme$b, - interpolateOrRd: OrRd, - schemeOrRd: scheme$c, - interpolatePuBuGn: PuBuGn, - schemePuBuGn: scheme$d, - interpolatePuBu: PuBu, - schemePuBu: scheme$e, - interpolatePuRd: PuRd, - schemePuRd: scheme$f, - interpolateRdPu: RdPu, - schemeRdPu: scheme$g, - interpolateYlGnBu: YlGnBu, - schemeYlGnBu: scheme$h, - interpolateYlGn: YlGn, - schemeYlGn: scheme$i, - interpolateYlOrBr: YlOrBr, - schemeYlOrBr: scheme$j, - interpolateYlOrRd: YlOrRd, - schemeYlOrRd: scheme$k, - interpolateBlues: Blues, - schemeBlues: scheme$l, - interpolateGreens: Greens, - schemeGreens: scheme$m, - interpolateGreys: Greys, - schemeGreys: scheme$n, - interpolatePurples: Purples, - schemePurples: scheme$o, - interpolateReds: Reds, - schemeReds: scheme$p, - interpolateOranges: Oranges, - schemeOranges: scheme$q, - interpolateCividis: cividis, - interpolateCubehelixDefault: cubehelix$3, - interpolateRainbow: rainbow, - interpolateWarm: warm, - interpolateCool: cool, - interpolateSinebow: sinebow, - interpolateTurbo: turbo, - interpolateViridis: viridis, - interpolateMagma: magma, - interpolateInferno: inferno, - interpolatePlasma: plasma, - create: create, - creator: creator, - local: local, - matcher: matcher, - mouse: mouse, - namespace: namespace, - namespaces: namespaces, - clientPoint: point, - select: select, - selectAll: selectAll, - selection: selection, - selector: selector, - selectorAll: selectorAll, - style: styleValue, - touch: touch, - touches: touches, - window: defaultView, - get event () { return event; }, - customEvent: customEvent, - arc: arc, - area: area$3, - line: line, - pie: pie, - areaRadial: areaRadial, - radialArea: areaRadial, - lineRadial: lineRadial$1, - radialLine: lineRadial$1, - pointRadial: pointRadial, - linkHorizontal: linkHorizontal, - linkVertical: linkVertical, - linkRadial: linkRadial, - symbol: symbol, - symbols: symbols, - symbolCircle: circle$2, - symbolCross: cross$2, - symbolDiamond: diamond, - symbolSquare: square, - symbolStar: star, - symbolTriangle: triangle, - symbolWye: wye, - curveBasisClosed: basisClosed$1, - curveBasisOpen: basisOpen, - curveBasis: basis$2, - curveBundle: bundle, - curveCardinalClosed: cardinalClosed, - curveCardinalOpen: cardinalOpen, - curveCardinal: cardinal, - curveCatmullRomClosed: catmullRomClosed, - curveCatmullRomOpen: catmullRomOpen, - curveCatmullRom: catmullRom, - curveLinearClosed: linearClosed, - curveLinear: curveLinear, - curveMonotoneX: monotoneX, - curveMonotoneY: monotoneY, - curveNatural: natural, - curveStep: step, - curveStepAfter: stepAfter, - curveStepBefore: stepBefore, - stack: stack, - stackOffsetExpand: expand, - stackOffsetDiverging: diverging$1, - stackOffsetNone: none$1, - stackOffsetSilhouette: silhouette, - stackOffsetWiggle: wiggle, - stackOrderAppearance: appearance, - stackOrderAscending: ascending$3, - stackOrderDescending: descending$2, - stackOrderInsideOut: insideOut, - stackOrderNone: none$2, - stackOrderReverse: reverse, - timeInterval: newInterval, - timeMillisecond: millisecond, - timeMilliseconds: milliseconds, - utcMillisecond: millisecond, - utcMilliseconds: milliseconds, - timeSecond: second, - timeSeconds: seconds, - utcSecond: second, - utcSeconds: seconds, - timeMinute: minute, - timeMinutes: minutes, - timeHour: hour, - timeHours: hours, - timeDay: day, - timeDays: days, - timeWeek: sunday, - timeWeeks: sundays, - timeSunday: sunday, - timeSundays: sundays, - timeMonday: monday, - timeMondays: mondays, - timeTuesday: tuesday, - timeTuesdays: tuesdays, - timeWednesday: wednesday, - timeWednesdays: wednesdays, - timeThursday: thursday, - timeThursdays: thursdays, - timeFriday: friday, - timeFridays: fridays, - timeSaturday: saturday, - timeSaturdays: saturdays, - timeMonth: month, - timeMonths: months, - timeYear: year, - timeYears: years, - utcMinute: utcMinute, - utcMinutes: utcMinutes, - utcHour: utcHour, - utcHours: utcHours, - utcDay: utcDay, - utcDays: utcDays, - utcWeek: utcSunday, - utcWeeks: utcSundays, - utcSunday: utcSunday, - utcSundays: utcSundays, - utcMonday: utcMonday, - utcMondays: utcMondays, - utcTuesday: utcTuesday, - utcTuesdays: utcTuesdays, - utcWednesday: utcWednesday, - utcWednesdays: utcWednesdays, - utcThursday: utcThursday, - utcThursdays: utcThursdays, - utcFriday: utcFriday, - utcFridays: utcFridays, - utcSaturday: utcSaturday, - utcSaturdays: utcSaturdays, - utcMonth: utcMonth, - utcMonths: utcMonths, - utcYear: utcYear, - utcYears: utcYears, - timeFormatDefaultLocale: defaultLocale$1, - get timeFormat () { return timeFormat; }, - get timeParse () { return timeParse; }, - get utcFormat () { return utcFormat; }, - get utcParse () { return utcParse; }, - timeFormatLocale: formatLocale$1, - isoFormat: formatIso, - isoParse: parseIso, - now: now, - timer: timer, - timerFlush: timerFlush, - timeout: timeout$1, - interval: interval$1, - transition: transition, - active: active, - interrupt: interrupt, - voronoi: voronoi, - zoom: zoom, - zoomTransform: transform$1, - zoomIdentity: identity$9 - }); - - var version$1 = "2.1.1"; - - const defaults = Object.freeze({ - children: data => data.children, - nodeSize: node => node.data.size, - spacing: 0, - }); - - // Create a layout function with customizable options. Per D3-style, the - // options can be set at any time using setter methods. The layout function - // will compute the tree node positions based on the options in effect at the - // time it is called. - function flextree(options) { - const opts = Object.assign({}, defaults, options); - function accessor(name) { - const opt = opts[name]; - return typeof opt === 'function' ? opt : () => opt; - } - - function layout(tree) { - const wtree = wrap(getWrapper(), tree, node=>node.children); - wtree.update(); - return wtree.data; - } - - function getFlexNode() { - const nodeSize = accessor('nodeSize'); - const spacing = accessor('spacing'); - return class FlexNode extends hierarchy.prototype.constructor { - constructor(data) { - super(data); - } - copy() { - const c = wrap(this.constructor, this, node=>node.children); - c.each(node => node.data = node.data.data); - return c; - } - get size() { return nodeSize(this); } - spacing(oNode) { return spacing(this, oNode); } - get nodes() { return this.descendants(); } - get xSize() { return this.size[0]; } - get ySize() { return this.size[1]; } - get top() { return this.y; } - get bottom() { return this.y + this.ySize; } - get left() { return this.x - this.xSize / 2; } - get right() { return this.x + this.xSize / 2; } - get root() { - const ancs = this.ancestors(); - return ancs[ancs.length - 1]; - } - get numChildren() { - return this.hasChildren ? this.children.length : 0; - } - get hasChildren() { return !this.noChildren; } - get noChildren() { return this.children === null; } - get firstChild() { - return this.hasChildren ? this.children[0] : null; - } - get lastChild() { - return this.hasChildren ? this.children[this.numChildren - 1] : null; - } - get extents() { - return (this.children || []).reduce( - (acc, kid) => FlexNode.maxExtents(acc, kid.extents), - this.nodeExtents); - } - get nodeExtents() { - return { - top: this.top, - bottom: this.bottom, - left: this.left, - right: this.right, - }; - } - static maxExtents(e0, e1) { - return { - top: Math.min(e0.top, e1.top), - bottom: Math.max(e0.bottom, e1.bottom), - left: Math.min(e0.left, e1.left), - right: Math.max(e0.right, e1.right), - }; - } - }; - } - - function getWrapper() { - const FlexNode = getFlexNode(); - const nodeSize = accessor('nodeSize'); - const spacing = accessor('spacing'); - return class extends FlexNode { - constructor(data) { - super(data); - Object.assign(this, { - x: 0, y: 0, - relX: 0, prelim: 0, shift: 0, change: 0, - lExt: this, lExtRelX: 0, lThr: null, - rExt: this, rExtRelX: 0, rThr: null, - }); - } - get size() { return nodeSize(this.data); } - spacing(oNode) { return spacing(this.data, oNode.data); } - get x() { return this.data.x; } - set x(v) { this.data.x = v; } - get y() { return this.data.y; } - set y(v) { this.data.y = v; } - update() { - layoutChildren(this); - resolveX(this); - return this; - } - }; - } - - function wrap(FlexClass, treeData, children) { - const _wrap = (data, parent) => { - const node = new FlexClass(data); - Object.assign(node, { - parent, - depth: parent === null ? 0 : parent.depth + 1, - height: 0, - length: 1, - }); - const kidsData = children(data) || []; - node.children = kidsData.length === 0 ? null - : kidsData.map(kd => _wrap(kd, node)); - if (node.children) { - Object.assign(node, node.children.reduce( - (hl, kid) => ({ - height: Math.max(hl.height, kid.height + 1), - length: hl.length + kid.length, - }), node - )); - } - return node; - }; - return _wrap(treeData, null); - } - - - Object.assign(layout, { - nodeSize(arg) { - return arguments.length ? (opts.nodeSize = arg, layout) : opts.nodeSize; - }, - spacing(arg) { - return arguments.length ? (opts.spacing = arg, layout) : opts.spacing; - }, - children(arg) { - return arguments.length ? (opts.children = arg, layout) : opts.children; - }, - hierarchy(treeData, children) { - const kids = typeof children === 'undefined' ? opts.children : children; - return wrap(getFlexNode(), treeData, kids); - }, - dump(tree) { - const nodeSize = accessor('nodeSize'); - const _dump = i0 => node => { - const i1 = i0 + ' '; - const i2 = i0 + ' '; - const {x, y} = node; - const size = nodeSize(node); - const kids = (node.children || []); - const kdumps = (kids.length === 0) ? ' ' : - `,${i1}children: [${i2}${kids.map(_dump(i2)).join(i2)}${i1}],${i0}`; - return `{ size: [${size.join(', ')}],${i1}x: ${x}, y: ${y}${kdumps}},`; - }; - return _dump('\n')(tree); - }, - }); - return layout; - } - flextree.version = version$1; - - const layoutChildren = (w, y = 0) => { - w.y = y; - (w.children || []).reduce((acc, kid) => { - const [i, lastLows] = acc; - layoutChildren(kid, w.y + w.ySize); - // The lowest vertical coordinate while extreme nodes still point - // in current subtree. - const lowY = (i === 0 ? kid.lExt : kid.rExt).bottom; - if (i !== 0) separate(w, i, lastLows); - const lows = updateLows(lowY, i, lastLows); - return [i + 1, lows]; - }, [0, null]); - shiftChange(w); - positionRoot(w); - return w; - }; - - // Resolves the relative coordinate properties - relX and prelim -- - // to set the final, absolute x coordinate for each node. This also sets - // `prelim` to 0, so that `relX` for each node is its x-coordinate relative - // to its parent. - const resolveX = (w, prevSum, parentX) => { - // A call to resolveX without arguments is assumed to be for the root of - // the tree. This will set the root's x-coord to zero. - if (typeof prevSum === 'undefined') { - prevSum = -w.relX - w.prelim; - parentX = 0; - } - const sum = prevSum + w.relX; - w.relX = sum + w.prelim - parentX; - w.prelim = 0; - w.x = parentX + w.relX; - (w.children || []).forEach(k => resolveX(k, sum, w.x)); - return w; - }; - - // Process shift and change for all children, to add intermediate spacing to - // each child's modifier. - const shiftChange = w => { - (w.children || []).reduce((acc, child) => { - const [lastShiftSum, lastChangeSum] = acc; - const shiftSum = lastShiftSum + child.shift; - const changeSum = lastChangeSum + shiftSum + child.change; - child.relX += changeSum; - return [shiftSum, changeSum]; - }, [0, 0]); - }; - - // Separates the latest child from its previous sibling - /* eslint-disable complexity */ - const separate = (w, i, lows) => { - const lSib = w.children[i - 1]; - const curSubtree = w.children[i]; - let rContour = lSib; - let rSumMods = lSib.relX; - let lContour = curSubtree; - let lSumMods = curSubtree.relX; - let isFirst = true; - while (rContour && lContour) { - if (rContour.bottom > lows.lowY) lows = lows.next; - // How far to the left of the right side of rContour is the left side - // of lContour? First compute the center-to-center distance, then add - // the "spacing" - const dist = - (rSumMods + rContour.prelim) - (lSumMods + lContour.prelim) + - rContour.xSize / 2 + lContour.xSize / 2 + - rContour.spacing(lContour); - if (dist > 0 || (dist < 0 && isFirst)) { - lSumMods += dist; - // Move subtree by changing relX. - moveSubtree$1(curSubtree, dist); - distributeExtra(w, i, lows.index, dist); - } - isFirst = false; - // Advance highest node(s) and sum(s) of modifiers - const rightBottom = rContour.bottom; - const leftBottom = lContour.bottom; - if (rightBottom <= leftBottom) { - rContour = nextRContour(rContour); - if (rContour) rSumMods += rContour.relX; - } - if (rightBottom >= leftBottom) { - lContour = nextLContour(lContour); - if (lContour) lSumMods += lContour.relX; - } - } - // Set threads and update extreme nodes. In the first case, the - // current subtree is taller than the left siblings. - if (!rContour && lContour) setLThr(w, i, lContour, lSumMods); - // In the next case, the left siblings are taller than the current subtree - else if (rContour && !lContour) setRThr(w, i, rContour, rSumMods); - }; - /* eslint-enable complexity */ - - // Move subtree by changing relX. - const moveSubtree$1 = (subtree, distance) => { - subtree.relX += distance; - subtree.lExtRelX += distance; - subtree.rExtRelX += distance; - }; - - const distributeExtra = (w, curSubtreeI, leftSibI, dist) => { - const curSubtree = w.children[curSubtreeI]; - const n = curSubtreeI - leftSibI; - // Are there intermediate children? - if (n > 1) { - const delta = dist / n; - w.children[leftSibI + 1].shift += delta; - curSubtree.shift -= delta; - curSubtree.change -= dist - delta; - } - }; - - const nextLContour = w => { - return w.hasChildren ? w.firstChild : w.lThr; - }; - - const nextRContour = w => { - return w.hasChildren ? w.lastChild : w.rThr; - }; - - const setLThr = (w, i, lContour, lSumMods) => { - const firstChild = w.firstChild; - const lExt = firstChild.lExt; - const curSubtree = w.children[i]; - lExt.lThr = lContour; - // Change relX so that the sum of modifier after following thread is correct. - const diff = lSumMods - lContour.relX - firstChild.lExtRelX; - lExt.relX += diff; - // Change preliminary x coordinate so that the node does not move. - lExt.prelim -= diff; - // Update extreme node and its sum of modifiers. - firstChild.lExt = curSubtree.lExt; - firstChild.lExtRelX = curSubtree.lExtRelX; - }; - - // Mirror image of setLThr. - const setRThr = (w, i, rContour, rSumMods) => { - const curSubtree = w.children[i]; - const rExt = curSubtree.rExt; - const lSib = w.children[i - 1]; - rExt.rThr = rContour; - const diff = rSumMods - rContour.relX - curSubtree.rExtRelX; - rExt.relX += diff; - rExt.prelim -= diff; - curSubtree.rExt = lSib.rExt; - curSubtree.rExtRelX = lSib.rExtRelX; - }; - - // Position root between children, taking into account their modifiers - const positionRoot = w => { - if (w.hasChildren) { - const k0 = w.firstChild; - const kf = w.lastChild; - const prelim = (k0.prelim + k0.relX - k0.xSize / 2 + - kf.relX + kf.prelim + kf.xSize / 2 ) / 2; - Object.assign(w, { - prelim, - lExt: k0.lExt, lExtRelX: k0.lExtRelX, - rExt: kf.rExt, rExtRelX: kf.rExtRelX, - }); - } - }; - - // Make/maintain a linked list of the indexes of left siblings and their - // lowest vertical coordinate. - const updateLows = (lowY, index, lastLows) => { - // Remove siblings that are hidden by the new subtree. - while (lastLows !== null && lowY >= lastLows.lowY) - lastLows = lastLows.next; - // Prepend the new subtree. - return { - lowY, - index, - next: lastLows, - }; - }; - - var d3Flextree = /*#__PURE__*/Object.freeze({ - __proto__: null, - flextree: flextree - }); - - var base = createCommonjsModule(function (module, exports) { - - exports.__esModule = true; - exports.getId = getId; - exports.noop = noop; - exports.walkTree = walkTree; - exports.arrayFrom = arrayFrom; - exports.flatMap = flatMap; - exports.addClass = addClass; - exports.childSelector = childSelector; - const uniqId = Math.random().toString(36).slice(2, 8); - let globalIndex = 0; - - function getId() { - globalIndex += 1; - return `mm-${uniqId}-${globalIndex}`; - } - - function noop() {// noop - } - - function walkTree(tree, callback, key = 'c') { - const walk = (item, parent) => callback(item, () => { - var _item$key; - - (_item$key = item[key]) == null ? void 0 : _item$key.forEach(child => { - walk(child, item); - }); - }, parent); - - walk(tree); - } - - function arrayFrom(arrayLike) { - if (Array.from) return Array.from(arrayLike); - const array = []; - - for (let i = 0; i < arrayLike.length; i += 1) { - array.push(arrayLike[i]); - } - - return array; - } - - function flatMap(arrayLike, callback) { - if (arrayLike.flatMap) return arrayLike.flatMap(callback); - const array = []; - - for (let i = 0; i < arrayLike.length; i += 1) { - const result = callback(arrayLike[i], i, arrayLike); - if (Array.isArray(result)) array.push(...result);else array.push(result); - } - - return array; - } - - function addClass(className, ...rest) { - const classList = (className || '').split(' ').filter(Boolean); - rest.forEach(item => { - if (item && classList.indexOf(item) < 0) classList.push(item); - }); - return classList.join(' '); - } - - function childSelector(filter) { - if (typeof filter === 'string') { - const tagName = filter; - - filter = el => el.tagName === tagName; - } - - const filterFn = filter; - return function selector() { - let nodes = arrayFrom(this.childNodes); - if (filterFn) nodes = nodes.filter(node => filterFn(node)); - return nodes; - }; - } - }); - - var html$1 = createCommonjsModule(function (module, exports) { - - exports.__esModule = true; - exports.escapeHtml = escapeHtml; - exports.escapeScript = escapeScript; - exports.htmlOpen = htmlOpen; - exports.htmlClose = htmlClose; - exports.wrapHtml = wrapHtml; - exports.wrapStyle = wrapStyle; - - function escapeHtml(html) { - return html.replace(/[&<"]/g, m => ({ - '&': '&', - '<': '<', - '"': '"' - })[m]); - } - - function escapeScript(content) { - return content.replace(/<(\/script>)/g, '\\x3c$2'); - } - - function htmlOpen(tagName, attrs) { - const attrStr = attrs ? Object.entries(attrs).map(([key, value]) => { - if (value == null || value === false) return; - key = ` ${escapeHtml(key)}`; - if (value === true) return key; - return `${key}="${escapeHtml(value)}"`; - }).filter(Boolean).join('') : ''; - return `<${tagName}${attrStr}>`; - } - - function htmlClose(tagName) { - return ``; - } - - function wrapHtml(tagName, content, attrs) { - if (content == null) return htmlOpen(tagName, attrs); - return htmlOpen(tagName, attrs) + (content || '') + htmlClose(tagName); - } - - function wrapStyle(text, style) { - if (style.code) text = wrapHtml('code', text); - if (style.del) text = wrapHtml('del', text); - if (style.em) text = wrapHtml('em', text); - if (style.strong) text = wrapHtml('strong', text); - return text; - } - }); - - var loader = createCommonjsModule(function (module, exports) { - - exports.__esModule = true; - exports.buildCode = buildCode; - exports.memoize = memoize; - exports.loadJS = loadJS; - exports.loadCSS = loadCSS; - exports.initializePlugins = initializePlugins; - exports.persistJS = persistJS; - exports.persistCSS = persistCSS; - - - - function buildCode(fn, ...args) { - const params = args.map(arg => { - if (typeof arg === 'function') return arg.toString(); - return JSON.stringify(arg != null ? arg : null); - }).join(','); - return `(${fn.toString()})(${params})`; - } - - function memoize(fn) { - const cache = {}; - return function memoized(...args) { - const key = `${args[0]}`; - let data = cache[key]; - - if (!data) { - data = { - value: fn(...args) - }; - cache[key] = data; - } - - return data.value; - }; - } - - function createElement(tagName, props, attrs) { - const el = document.createElement(tagName); - - if (props) { - Object.entries(props).forEach(([key, value]) => { - el[key] = value; - }); - } - - if (attrs) { - Object.entries(attrs).forEach(([key, value]) => { - el.setAttribute(key, value); - }); - } - - return el; - } - - const memoizedPreloadJS = memoize(url => { - document.head.append(createElement('link', { - rel: 'preload', - as: 'script', - href: url - })); - }); - - function loadJSItem(item, context) { - if (item.type === 'script') { - return new Promise((resolve, reject) => { - document.head.append(createElement('script', Object.assign(Object.assign({}, item.data), {}, { - onload: resolve, - onerror: reject - }))); - }); - } else if (item.type === 'iife') { - const { - fn, - getParams - } = item.data; - fn(...((getParams == null ? void 0 : getParams(context)) || [])); - } - } - - function loadCSSItem(item) { - if (item.type === 'style') { - document.head.append(createElement('style', { - textContent: item.data - })); - } else if (item.type === 'stylesheet') { - document.head.append(createElement('link', Object.assign({ - rel: 'stylesheet' - }, item.data))); - } - } - - async function loadJS(items, options) { - const needPreload = items.filter(item => item.type === 'script'); - if (needPreload.length > 1) needPreload.forEach(item => memoizedPreloadJS(item.data.src)); - - for (const item of items) { - await loadJSItem(item, options); - } - } - - function loadCSS(items) { - for (const item of items) { - loadCSSItem(item); - } - } - - async function initializePlugins(Markmap, plugins, options) { - options = Object.assign({}, options); - await Promise.all(plugins.map(plugin => { - loadCSS(plugin.styles); - return loadJS(plugin.scripts, options); - })); - - for (const { - initialize - } of plugins) { - if (initialize) initialize(Markmap, options); - } - } - - function persistJS(items, context) { - return items.map(item => { - if (item.type === 'script') return (0, html$1.wrapHtml)('script', '', item.data); - - if (item.type === 'iife') { - const { - fn, - getParams - } = item.data; - return (0, html$1.wrapHtml)('script', (0, html$1.escapeScript)(buildCode(fn, ...((getParams == null ? void 0 : getParams(context)) || [])))); - } - }); - } - - function persistCSS(items) { - return items.map(item => { - if (item.type === 'stylesheet') { - return (0, html$1.wrapHtml)('link', null, Object.assign({ - rel: 'stylesheet' - }, item.data)); - } - /* else if (item.type === 'style') */ - - - return (0, html$1.wrapHtml)('style', item.data); - }); - } - }); - - var util = createCommonjsModule(function (module, exports) { - - exports.__esModule = true; - - - - Object.keys(base).forEach(function (key) { - if (key === "default" || key === "__esModule") return; - exports[key] = base[key]; - }); - - - - Object.keys(html$1).forEach(function (key) { - if (key === "default" || key === "__esModule") return; - exports[key] = html$1[key]; - }); - - - - Object.keys(loader).forEach(function (key) { - if (key === "default" || key === "__esModule") return; - exports[key] = loader[key]; - }); - }); - - var mathjax = createCommonjsModule(function (module, exports) { - - exports.__esModule = true; - exports.plugin = void 0; - const styles = []; - const scripts = [{ - type: 'iife', - data: { - fn: mathJax => { - mathJax.options = Object.assign({ - skipHtmlTags: { - '[-]': ['code', 'pre'] - } - }, mathJax.options); - mathJax.startup = Object.assign({ - typeset: false - }, mathJax.startup); - window.MathJax = mathJax; - }, - getParams: context => [Object.assign({}, context.mathJax)] - } - }, { - type: 'script', - data: { - src: 'https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-svg.js' - } - }]; - - function initialize(Markmap, options) { - Markmap.transformHtml.tap((mm, nodes) => { - var _MathJax$typeset, _MathJax; - - (_MathJax$typeset = (_MathJax = window.MathJax).typeset) == null ? void 0 : _MathJax$typeset.call(_MathJax, nodes); - }); - } - - const plugin = { - styles, - scripts, - initialize - }; - exports.plugin = plugin; - }); - - var prism = createCommonjsModule(function (module, exports) { - - exports.__esModule = true; - exports.plugin = void 0; - - - - const errors = {}; - const styles = [{ - type: 'stylesheet', - data: { - href: 'https://cdn.jsdelivr.net/npm/prismjs@1/themes/prism.css' - } - }]; - const scripts = [{ - type: 'iife', - data: { - fn: () => { - window.Prism = { - manual: true - }; - } - } - }, { - type: 'script', - data: { - src: 'https://cdn.jsdelivr.net/npm/prismjs@1/components/prism-core.min.js' - } - }, // components will be added by paths relative to path of autoloader - { - type: 'script', - data: { - src: 'https://cdn.jsdelivr.net/npm/prismjs@1/plugins/autoloader/prism-autoloader.min.js' - } - }]; - - function initialize(Markmap, options) { - Markmap.transformHtml.tap((mm, nodes) => { - const { - Prism - } = window; - const langs = (0, util.flatMap)(nodes, node => (0, util.arrayFrom)(node.querySelectorAll('code[class*=language-]'))).map(code => { - const lang = code.className.match(/(?:^|\s)language-(\S+)|$/)[1]; - - if (Prism.languages[lang]) { - Prism.highlightElement(code); - } else if (!errors[lang]) { - return lang; - } - }).filter(Boolean); - loadLanguagesAndRender(mm, langs); - }); - } - - async function loadLanguagesAndRender(mm, langs) { - if (!langs.length) return; - const { - Prism - } = window; - - try { - await new Promise((resolve, reject) => { - Prism.plugins.autoloader.loadLanguages(langs, resolve, reject); - }); - } catch (err) { - errors[err] = true; - } - - mm.setData(); - mm.fit(); - } - - const plugin = { - styles, - scripts, - initialize - }; - exports.plugin = plugin; - }); - - var plugins = createCommonjsModule(function (module, exports) { - - exports.__esModule = true; - exports.prism = exports.mathJax = void 0; - - - - exports.mathJax = mathjax.plugin; - - - - exports.prism = prism.plugin; - }); - - var hook = createCommonjsModule(function (module, exports) { - - exports.__esModule = true; - exports.Hook = void 0; - - class Hook { - constructor() { - this.listeners = []; - } - - tap(fn) { - this.listeners.push(fn); - } - - call(...args) { - for (const fn of this.listeners) { - fn(...args); - } - } - - } - - exports.Hook = Hook; - }); - - var view = createCommonjsModule(function (module, exports) { - - - - exports.__esModule = true; - exports.markmap = markmap; - exports.loadPlugins = loadPlugins; - exports.plugins = exports.Markmap = void 0; - - var d3$1 = interopRequireWildcard(d3); - - - - - - var plugins$1 = interopRequireWildcard(plugins); - - exports.plugins = plugins$1; - - - - function linkWidth(nodeData) { - const data = nodeData.data; - return Math.max(6 - 2 * data.d, 1.5); - } - - function adjustSpacing(tree, spacing) { - (0, util.walkTree)(tree, (d, next) => { - d.ySizeInner = d.ySize - spacing; - d.y += spacing; - next(); - }, 'children'); - } - - class Markmap { - constructor(svg, opts) { - this.options = void 0; - this.state = void 0; - this.svg = void 0; - this.styleNode = void 0; - this.g = void 0; - this.zoom = void 0; - ['handleZoom', 'handleClick'].forEach(key => { - this[key] = this[key].bind(this); - }); - this.svg = svg.datum ? svg : d3$1.select(svg); - this.styleNode = this.svg.append('style'); - this.zoom = d3$1.zoom().on('zoom', this.handleZoom); - this.options = Object.assign({ - duration: 500, - nodeFont: '300 16px/20px sans-serif', - nodeMinHeight: 16, - spacingVertical: 5, - spacingHorizontal: 80, - autoFit: false, - fitRatio: 0.95, - color: (colorFn => node => colorFn(node.p.i))(d3$1.scaleOrdinal(d3$1.schemeCategory10)), - paddingX: 8 - }, opts); - this.state = { - id: this.options.id || (0, util.getId)() - }; - this.g = this.svg.append('g').attr('class', `${this.state.id}-g`); - this.updateStyle(); - this.svg.call(this.zoom); - } - - getStyleContent() { - const { - style, - nodeFont - } = this.options; - const { - id - } = this.state; - const extraStyle = typeof style === 'function' ? style(id) : ''; - const styleText = `\ -.${id} a { color: #0097e6; } -.${id} a:hover { color: #00a8ff; } -.${id}-g > path { fill: none; } -.${id}-fo > div { font: ${nodeFont}; white-space: nowrap; } -.${id}-fo code { padding: .2em .4em; font-size: calc(1em - 2px); color: #555; background-color: #f0f0f0; border-radius: 2px; } -.${id}-fo del { text-decoration: line-through; } -.${id}-fo em { font-style: italic; } -.${id}-fo strong { font-weight: 600; } -.${id}-fo pre { margin: 0; } -.${id}-fo pre[class*=language-] { padding: 0; } -.${id}-g > g { cursor: pointer; } -${extraStyle} -`; - return styleText; - } - - updateStyle() { - this.svg.attr('class', (0, util.addClass)(this.svg.attr('class'), this.state.id)); - this.styleNode.text(this.getStyleContent()); - } - - handleZoom() { - const { - transform - } = d3$1.event; - this.g.attr('transform', transform); - } - - handleClick(d) { - var _data$p; - - const { - data - } = d; - data.p = Object.assign(Object.assign({}, data.p), {}, { - f: !((_data$p = data.p) == null ? void 0 : _data$p.f) - }); - this.renderData(d.data); - } - - initializeData(node) { - let i = 0; - const { - nodeFont, - color, - nodeMinHeight - } = this.options; - const { - id - } = this.state; - const container = document.createElement('div'); - const containerClass = `${id}-container`; - container.className = (0, util.addClass)(container.className, `${id}-fo`, containerClass); - const style = document.createElement('style'); - style.textContent = ` -${this.getStyleContent()} -.${containerClass} { - position: absolute; - width: 0; - height: 0; - top: -100px; - left: -100px; - overflow: hidden; - font: ${nodeFont}; -} -.${containerClass} > div { - display: inline-block; -} -`; - document.body.append(style, container); - (0, util.walkTree)(node, (item, next) => { - var _item$c; - - item.c = (_item$c = item.c) == null ? void 0 : _item$c.map(child => Object.assign({}, child)); - i += 1; - const el = document.createElement('div'); - el.innerHTML = item.v; - container.append(el); - item.p = Object.assign(Object.assign({}, item.p), {}, { - // unique ID - i, - el - }); - color(item); // preload colors - - next(); - }); - const nodes = (0, util.arrayFrom)(container.childNodes); - this.constructor.transformHtml.call(this, nodes); - (0, util.walkTree)(node, (item, next, parent) => { - var _parent$p; - - const rect = item.p.el.getBoundingClientRect(); - item.v = item.p.el.innerHTML; - item.p.s = [Math.ceil(rect.width), Math.max(Math.ceil(rect.height), nodeMinHeight)]; // TODO keep keys for unchanged objects - // unique key, should be based on content - - item.p.k = `${(parent == null ? void 0 : (_parent$p = parent.p) == null ? void 0 : _parent$p.i) || ''}.${item.p.i}:${item.v}`; - next(); - }); - container.remove(); - style.remove(); - } - - setOptions(opts) { - Object.assign(this.options, opts); - } - - setData(data, opts) { - if (!data) data = Object.assign({}, this.state.data); - this.state.data = data; - this.initializeData(data); - if (opts) this.setOptions(opts); - this.renderData(); - } - - renderData(originData) { - var _origin$data$p$x, _origin$data$p$y; - - if (!this.state.data) return; - const { - spacingHorizontal, - paddingX, - spacingVertical, - autoFit, - color - } = this.options; - const { - id - } = this.state; - const layout = (0, d3Flextree.flextree)().children(d => { - var _d$p; - - return !((_d$p = d.p) == null ? void 0 : _d$p.f) && d.c; - }).nodeSize(d => { - const [width, height] = d.data.p.s; - return [height, width + (width ? paddingX * 2 : 0) + spacingHorizontal]; - }).spacing((a, b) => { - return a.parent === b.parent ? spacingVertical : spacingVertical * 2; - }); - const tree = layout.hierarchy(this.state.data); - layout(tree); - adjustSpacing(tree, spacingHorizontal); - const descendants = tree.descendants().reverse(); - const links = tree.links(); - const linkShape = d3$1.linkHorizontal(); - const minX = d3$1.min(descendants, d => d.x - d.xSize / 2); - const maxX = d3$1.max(descendants, d => d.x + d.xSize / 2); - const minY = d3$1.min(descendants, d => d.y); - const maxY = d3$1.max(descendants, d => d.y + d.ySizeInner); - Object.assign(this.state, { - minX, - maxX, - minY, - maxY - }); - if (autoFit) this.fit(); - const origin = originData && descendants.find(item => item.data === originData) || tree; - const x0 = (_origin$data$p$x = origin.data.p.x0) != null ? _origin$data$p$x : origin.x; - const y0 = (_origin$data$p$y = origin.data.p.y0) != null ? _origin$data$p$y : origin.y; // Update the nodes - - const node = this.g.selectAll((0, util.childSelector)('g')).data(descendants, d => d.data.p.k); - const nodeEnter = node.enter().append('g').attr('transform', d => `translate(${y0 + origin.ySizeInner - d.ySizeInner},${x0 + origin.xSize / 2 - d.xSize})`).on('click', this.handleClick); - const nodeExit = this.transition(node.exit()); - nodeExit.select('rect').attr('width', 0).attr('x', d => d.ySizeInner); - nodeExit.select('foreignObject').style('opacity', 0); - nodeExit.attr('transform', d => `translate(${origin.y + origin.ySizeInner - d.ySizeInner},${origin.x + origin.xSize / 2 - d.xSize})`).remove(); - const nodeMerge = node.merge(nodeEnter); - this.transition(nodeMerge).attr('transform', d => `translate(${d.y},${d.x - d.xSize / 2})`); - const rect = nodeMerge.selectAll((0, util.childSelector)('rect')).data(d => [d], d => d.data.p.k).join(enter => { - return enter.append('rect').attr('x', d => d.ySizeInner).attr('y', d => d.xSize - linkWidth(d) / 2).attr('width', 0).attr('height', linkWidth); - }, update => update, exit => exit.remove()); - this.transition(rect).attr('x', -1).attr('width', d => d.ySizeInner + 2).attr('fill', d => color(d.data)); - const circle = nodeMerge.selectAll((0, util.childSelector)('circle')).data(d => d.data.c ? [d] : [], d => d.data.p.k).join(enter => { - return enter.append('circle').attr('stroke-width', '1.5').attr('cx', d => d.ySizeInner).attr('cy', d => d.xSize).attr('r', 0); - }, update => update, exit => exit.remove()); - this.transition(circle).attr('r', 6).attr('stroke', d => color(d.data)).attr('fill', d => { - var _d$data$p; - - return ((_d$data$p = d.data.p) == null ? void 0 : _d$data$p.f) ? color(d.data) : '#fff'; - }); - const foreignObject = nodeMerge.selectAll((0, util.childSelector)('foreignObject')).data(d => [d], d => d.data.p.k).join(enter => { - const fo = enter.append('foreignObject').attr('class', `${id}-fo`).attr('x', paddingX).attr('y', 0).style('opacity', 0).attr('height', d => d.xSize); - fo.append('xhtml:div').select(function (d) { - const node = d.data.p.el.cloneNode(true); - this.replaceWith(node); - return node; - }).attr('xmlns', 'http://www.w3.org/1999/xhtml'); - return fo; - }, update => update, exit => exit.remove()).attr('width', d => Math.max(0, d.ySizeInner - paddingX * 2)); - this.transition(foreignObject).style('opacity', 1); // Update the links - - const path = this.g.selectAll((0, util.childSelector)('path')).data(links, d => d.target.data.p.k).join(enter => { - const source = [y0 + origin.ySizeInner, x0 + origin.xSize / 2]; - return enter.insert('path', 'g').attr('d', linkShape({ - source, - target: source - })); - }, update => update, exit => { - const source = [origin.y + origin.ySizeInner, origin.x + origin.xSize / 2]; - return this.transition(exit).attr('d', linkShape({ - source, - target: source - })).remove(); - }); - this.transition(path).attr('stroke', d => color(d.target.data)).attr('stroke-width', d => linkWidth(d.target)).attr('d', d => { - const source = [d.source.y + d.source.ySizeInner, d.source.x + d.source.xSize / 2]; - const target = [d.target.y, d.target.x + d.target.xSize / 2]; - return linkShape({ - source, - target - }); - }); - descendants.forEach(d => { - d.data.p.x0 = d.x; - d.data.p.y0 = d.y; - }); - } - - transition(sel) { - const { - duration - } = this.options; - return sel.transition().duration(duration); - } - - fit() { - const svgNode = this.svg.node(); - const { - width: offsetWidth, - height: offsetHeight - } = svgNode.getBoundingClientRect(); - const { - fitRatio - } = this.options; - const { - minX, - maxX, - minY, - maxY - } = this.state; - const naturalWidth = maxY - minY; - const naturalHeight = maxX - minX; - const scale = Math.min(offsetWidth / naturalWidth * fitRatio, offsetHeight / naturalHeight * fitRatio, 2); - const initialZoom = d3$1.zoomIdentity.translate((offsetWidth - naturalWidth * scale) / 2 - minY * scale, (offsetHeight - naturalHeight * scale) / 2 - minX * scale).scale(scale); - return this.transition(this.svg).call(this.zoom.transform, initialZoom).end().catch(util.noop); - } - - rescale(scale) { - const svgNode = this.svg.node(); - const { - width: offsetWidth, - height: offsetHeight - } = svgNode.getBoundingClientRect(); - const halfWidth = offsetWidth / 2; - const halfHeight = offsetHeight / 2; - const transform = d3$1.zoomTransform(svgNode); - const newTransform = transform.translate((halfWidth - transform.x) * (1 - scale) / transform.k, (halfHeight - transform.y) * (1 - scale) / transform.k).scale(scale); - return this.transition(this.svg).call(this.zoom.transform, newTransform).end().catch(util.noop); - } - - static create(svg, opts, data) { - const mm = new Markmap(svg, opts); - - if (data) { - mm.setData(data); - mm.fit(); // always fit for the first render - } - - return mm; - } - - } - - exports.Markmap = Markmap; - Markmap.transformHtml = new hook.Hook(); - - function markmap(svg, data, opts) { - return Markmap.create(svg, opts, data); - } - - async function loadPlugins(items, options) { - items = items.map(item => { - if (typeof item === 'string') { - const name = item; - item = plugins$1[name]; - - if (!item) { - console.warn(`[markmap] Unknown plugin: ${name}`); - } - } - - return item; - }).filter(Boolean); - return (0, util.initializePlugins)(Markmap, items, options); - } - }); - - var view$1 = /*@__PURE__*/unwrapExports(view); - - return view$1; - -}))); diff --git a/www/common/diffMarked.js b/www/common/diffMarked.js index eba8156b7..0a29ca872 100644 --- a/www/common/diffMarked.js +++ b/www/common/diffMarked.js @@ -12,8 +12,7 @@ define([ '/bower_components/diff-dom/diffDOM.js', '/bower_components/tweetnacl/nacl-fast.min.js', 'css!/common/highlight/styles/github.css' -],function ($, ApiConfig, Marked, Hash, Util, h, MT, MediaTag, Highlight, Messages, - MarkMapTransform, Markmap) { +],function ($, ApiConfig, Marked, Hash, Util, h, MT, MediaTag, Highlight, Messages) { var DiffMd = {}; var DiffDOM = window.diffDOM; @@ -119,7 +118,7 @@ define([ } else if (language === 'markmap') { return '
    '+Util.fixHTML(code)+'
    '; } else if (language === 'mathjax') { - var svg = Mathjax.tex2svg(code, {display: true}) + var svg = Mathjax.tex2svg(code, {display: true}); if (!svg) { return ''; } return '
    '+ svg.innerHTML.replace(/xlink:href/g, "href") +'
    '; } else { @@ -380,7 +379,7 @@ define([ var observer = new MutationObserver(function(mutations) { mutations.forEach(function(mutation) { if (mutation.type === 'childList') { - var n, $a; + var n; for (var i = 0; i < mutation.addedNodes.length; i++) { n = mutation.addedNodes[i]; if (n.nodeName === "A") { return void n.addEventListener('click', onClick); } @@ -400,8 +399,8 @@ define([ attr: 'markmap-source', render: function ($el) { var data = MarkMapTransform.transform($el[0].getAttribute("markmap-source")); - $el[0].innerHTML = "" - Markmap.markmap($el[0].firstChild, data) + $el[0].innerHTML = ""; + Markmap.markmap($el[0].firstChild, data); fixMathjaxClickables($el); } }; @@ -516,7 +515,6 @@ define([ // If the element is a mermaid or markmap svg, get the corresponding attribute var isSvg = $mt.is('pre[data-plugin]'); var plugin = isSvg && plugins[$mt.attr('data-plugin')]; - console.log(plugin); // Get initial idx var idx = -1; From a528d857a74e9d057fbc9a2b26e979971fb4231f Mon Sep 17 00:00:00 2001 From: ansuz Date: Fri, 3 Jul 2020 15:04:34 -0400 Subject: [PATCH 6/8] lazily load assets for mermaid, mathjax, and markmap --- www/common/diffMarked.js | 185 +++++++++++++++++++++++---------------- 1 file changed, 110 insertions(+), 75 deletions(-) diff --git a/www/common/diffMarked.js b/www/common/diffMarked.js index 0a29ca872..848a33c36 100644 --- a/www/common/diffMarked.js +++ b/www/common/diffMarked.js @@ -19,42 +19,120 @@ define([ var renderer = new Marked.Renderer(); var restrictedRenderer = new Marked.Renderer(); - var Mermaid = { - init: function () {} - }; - var MarkMapTransform = { - transform: function () {} - }; - var Markmap = { - markmap: function () {} - }; - var Mathjax = { - tex2svg: function () {} - }; + var argsMap = {}; var mermaidThemeCSS = //".node rect { fill: #DDD; stroke: #AAA; } " + "rect.task, rect.task0, rect.task2 { stroke-width: 1 !important; rx: 0 !important; } " + "g.grid g.tick line { opacity: 0.25; }" + "g.today line { stroke: red; stroke-width: 1; stroke-dasharray: 3; opacity: 0.5; }"; - require([ - 'mermaid', - '/lib/markmap/transform.min.js', - '/lib/markmap/view.min.js', - '/bower_components/MathJax/es5/tex-svg.js', - 'css!/code/mermaid-new.css' - ], function (_Mermaid, _Transform, _View) { - Mathjax = window.MathJax; - - MarkMapTransform = _Transform; - Markmap = _View; - - Mermaid = _Mermaid; - Mermaid.initialize({ - gantt: { axisFormat: '%m-%d', }, - "themeCSS": mermaidThemeCSS, + var Mermaid = { + init: function () { + argsMap.mermaid = Util.slice(arguments); + require([ + 'mermaid', + 'css!/code/mermaid-new.css' + ], function (_Mermaid) { + console.debug("loaded mermaid"); + Mermaid = _Mermaid; + Mermaid.initialize({ + gantt: { axisFormat: '%m-%d', }, + "themeCSS": mermaidThemeCSS, + }); + Mermaid.init.call(argsMap.mermaid); + delete argsMap.mermaid; + }); + } + }; + + var Mathjax = { + tex2svg: function () { + argsMap.Mathjax = Util.slice(arguments); + require([ + '/bower_components/MathJax/es5/tex-svg.js', + ], function () { + console.debug("Loaded mathjax"); + Mathjax = window.MathJax; + if (!argsMap.Mathjax) { return; } + Mathjax.tex2svg(argsMap.Mathjax[0], argsMap.Mathjax[1]); + delete argsMap.Mathjax; + }); + } + }; + + var drawMarkmap; + var MarkMapTransform; + var Markmap; + + var markmapLoaded = false; + var loadMarkmap = function () { + require([ + '/lib/markmap/transform.min.js', + '/lib/markmap/view.min.js', + ], function (_Transform, _View) { + console.debug("Loaded markmap"); + MarkMapTransform = _Transform; + Markmap = _View; + + markmapLoaded = true; + drawMarkmap(argsMap.markmap); + delete argsMap.markmap; }); - }); + }; + + var sfCommon; + var fixMathjaxClickables = function ($svg) { + // find all links in the tree and do the following for each one + var onClick = function (e) { + e.preventDefault(); + e.stopImmediatePropagation(); + var $el = $(e.target); + // Open links only from the preview modal + if (!sfCommon) { return void console.error('No sfCommon'); } + + var href = $el.attr('href'); + if (!href || !/^(https?:\/\/|\/)/.test(href)) { return; } + + if (/^http/.test(href)) { + sfCommon.openUnsafeURL(href); + return; + } + sfCommon.openURL(href); + }; + $svg.find('a').click(onClick); + // make sure the links added later by collapsing/expading the map are also safe + var observer = new MutationObserver(function(mutations) { + mutations.forEach(function(mutation) { + if (mutation.type === 'childList') { + var n; + for (var i = 0; i < mutation.addedNodes.length; i++) { + n = mutation.addedNodes[i]; + if (n.nodeName === "A") { return void n.addEventListener('click', onClick); } + $(n).find('a').click(onClick); + } + } + }); + }); + observer.observe($svg[0], { + childList: true, + subtree: true + }); + }; + + drawMarkmap = function ($el) { + if (!markmapLoaded) { + argsMap.markmap = $el; //Util.slice(arguments); + loadMarkmap(); + return; + } + + if (!$el) { return console.error("no element provided"); } + + var data = MarkMapTransform.transform($el[0].getAttribute("markmap-source")); + $el[0].innerHTML = ""; + Markmap.markmap($el[0].firstChild, data); + fixMathjaxClickables($el); + }; var highlighter = function () { return function(code, lang) { @@ -225,7 +303,6 @@ define([ return renderParagraph(p); }; - var MutationObserver = window.MutationObserver; var forbiddenTags = [ 'SCRIPT', 'IFRAME', @@ -270,7 +347,7 @@ define([ parent.removeChild(node); }; - var removeForbiddenTags = function (root) { + var removeForbiddenTags = function (root) { // YYY if (!root) { return; } if (forbiddenTags.indexOf(root.nodeName.toUpperCase()) !== -1) { removeNode(root); } slice(root.children).forEach(removeForbiddenTags); @@ -355,57 +432,14 @@ define([ } }; - var sfCommon; - var fixMathjaxClickables = function ($svg) { - // find all links in the tree and do the following for each one - var onClick = function (e) { - e.preventDefault(); - e.stopImmediatePropagation(); - var $el = $(e.target); - // Open links only from the preview modal - if (!sfCommon) { return void console.error('No sfCommon'); } - - var href = $el.attr('href'); - if (!href || !/^(https?:\/\/|\/)/.test(href)) { return; } - - if (/^http/.test(href)) { - sfCommon.openUnsafeURL(href); - return; - } - sfCommon.openURL(href); - }; - $svg.find('a').click(onClick); - // make sure the links added later by collapsing/expading the map are also safe - var observer = new MutationObserver(function(mutations) { - mutations.forEach(function(mutation) { - if (mutation.type === 'childList') { - var n; - for (var i = 0; i < mutation.addedNodes.length; i++) { - n = mutation.addedNodes[i]; - if (n.nodeName === "A") { return void n.addEventListener('click', onClick); } - $(n).find('a').click(onClick); - } - } - }); - }); - observer.observe($svg[0], { - childList: true, - subtree: true - }); - }; - plugins.markmap = { name: 'markmap', attr: 'markmap-source', render: function ($el) { - var data = MarkMapTransform.transform($el[0].getAttribute("markmap-source")); - $el[0].innerHTML = ""; - Markmap.markmap($el[0].firstChild, data); - fixMathjaxClickables($el); + drawMarkmap($el); } }; - DiffMd.apply = function (newHtml, $content, common) { if (!sfCommon) { sfCommon = common; } @@ -483,6 +517,7 @@ define([ var oldDom = domFromHTML($content[0].outerHTML); + var MutationObserver = window.MutationObserver; var onPreview = function ($mt) { return function () { var mts = []; From f7529d2908477e5d60e303b6fe8d6a8a236c5f61 Mon Sep 17 00:00:00 2001 From: ansuz Date: Fri, 3 Jul 2020 15:35:49 -0400 Subject: [PATCH 7/8] address some race conditions when rendering multiple elements --- www/common/diffMarked.js | 62 +++++++++++++++++++--------------------- 1 file changed, 30 insertions(+), 32 deletions(-) diff --git a/www/common/diffMarked.js b/www/common/diffMarked.js index 848a33c36..d6f317b7b 100644 --- a/www/common/diffMarked.js +++ b/www/common/diffMarked.js @@ -19,43 +19,45 @@ define([ var renderer = new Marked.Renderer(); var restrictedRenderer = new Marked.Renderer(); - var argsMap = {}; - var mermaidThemeCSS = //".node rect { fill: #DDD; stroke: #AAA; } " + "rect.task, rect.task0, rect.task2 { stroke-width: 1 !important; rx: 0 !important; } " + "g.grid g.tick line { opacity: 0.25; }" + "g.today line { stroke: red; stroke-width: 1; stroke-dasharray: 3; opacity: 0.5; }"; var Mermaid = { + __stubbed: true, init: function () { - argsMap.mermaid = Util.slice(arguments); + var args = Util.slice(arguments); require([ 'mermaid', 'css!/code/mermaid-new.css' ], function (_Mermaid) { console.debug("loaded mermaid"); - Mermaid = _Mermaid; - Mermaid.initialize({ - gantt: { axisFormat: '%m-%d', }, - "themeCSS": mermaidThemeCSS, - }); - Mermaid.init.call(argsMap.mermaid); - delete argsMap.mermaid; + if (Mermaid.__stubbed) { + Mermaid = _Mermaid; + Mermaid.initialize({ + gantt: { axisFormat: '%m-%d', }, + "themeCSS": mermaidThemeCSS, + }); + } + + Mermaid.init.call(args); }); } }; var Mathjax = { - tex2svg: function () { - argsMap.Mathjax = Util.slice(arguments); + __stubbed: true, + tex2svg: function (a, b) { + var args = Util.slice(arguments); require([ '/bower_components/MathJax/es5/tex-svg.js', ], function () { console.debug("Loaded mathjax"); - Mathjax = window.MathJax; - if (!argsMap.Mathjax) { return; } - Mathjax.tex2svg(argsMap.Mathjax[0], argsMap.Mathjax[1]); - delete argsMap.Mathjax; + if (Mathjax.__stubbed) { + Mathjax = window.MathJax; + } + Mathjax.tex2svg(a, b); //args[0], args[1]); }); } }; @@ -65,18 +67,18 @@ define([ var Markmap; var markmapLoaded = false; - var loadMarkmap = function () { + var loadMarkmap = function ($el) { require([ '/lib/markmap/transform.min.js', '/lib/markmap/view.min.js', ], function (_Transform, _View) { - console.debug("Loaded markmap"); - MarkMapTransform = _Transform; - Markmap = _View; - - markmapLoaded = true; - drawMarkmap(argsMap.markmap); - delete argsMap.markmap; + if (!markmapLoaded) { + console.debug("Loaded markmap"); + MarkMapTransform = _Transform; + Markmap = _View; + markmapLoaded = true; + } + drawMarkmap($el); }); }; @@ -120,14 +122,8 @@ define([ }; drawMarkmap = function ($el) { - if (!markmapLoaded) { - argsMap.markmap = $el; //Util.slice(arguments); - loadMarkmap(); - return; - } - + if (!markmapLoaded) { return void loadMarkmap($el); } if (!$el) { return console.error("no element provided"); } - var data = MarkMapTransform.transform($el[0].getAttribute("markmap-source")); $el[0].innerHTML = ""; Markmap.markmap($el[0].firstChild, data); @@ -197,7 +193,9 @@ define([ return '
    '+Util.fixHTML(code)+'
    '; } else if (language === 'mathjax') { var svg = Mathjax.tex2svg(code, {display: true}); - if (!svg) { return ''; } + if (!svg) { + return defaultCode.apply(renderer, arguments); + } return '
    '+ svg.innerHTML.replace(/xlink:href/g, "href") +'
    '; } else { return defaultCode.apply(renderer, arguments); From b5a18e8e098339786c6284fe69f5ee5031bf2f49 Mon Sep 17 00:00:00 2001 From: ansuz Date: Fri, 3 Jul 2020 17:38:00 -0400 Subject: [PATCH 8/8] force redraw for asynchronously rendered plugin content --- www/code/inner.js | 2 ++ www/common/diffMarked.js | 13 +++++++++---- 2 files changed, 11 insertions(+), 4 deletions(-) diff --git a/www/code/inner.js b/www/code/inner.js index de91714c4..7f304e6bc 100644 --- a/www/code/inner.js +++ b/www/code/inner.js @@ -297,6 +297,8 @@ define([ } }); + DiffMd.onPluginLoaded(drawPreview); + return { forceDraw: forceDrawPreview, draw: drawPreview, diff --git a/www/common/diffMarked.js b/www/common/diffMarked.js index d6f317b7b..25d66187d 100644 --- a/www/common/diffMarked.js +++ b/www/common/diffMarked.js @@ -19,6 +19,9 @@ define([ var renderer = new Marked.Renderer(); var restrictedRenderer = new Marked.Renderer(); + var pluginLoaded = Util.mkEvent(); + DiffMd.onPluginLoaded = pluginLoaded.reg; + var mermaidThemeCSS = //".node rect { fill: #DDD; stroke: #AAA; } " + "rect.task, rect.task0, rect.task2 { stroke-width: 1 !important; rx: 0 !important; } " + "g.grid g.tick line { opacity: 0.25; }" + @@ -42,6 +45,7 @@ define([ } Mermaid.init.call(args); + pluginLoaded.fire(); }); } }; @@ -49,7 +53,6 @@ define([ var Mathjax = { __stubbed: true, tex2svg: function (a, b) { - var args = Util.slice(arguments); require([ '/bower_components/MathJax/es5/tex-svg.js', ], function () { @@ -57,7 +60,8 @@ define([ if (Mathjax.__stubbed) { Mathjax = window.MathJax; } - Mathjax.tex2svg(a, b); //args[0], args[1]); + Mathjax.tex2svg(a, b); + pluginLoaded.fire(); }); } }; @@ -79,6 +83,7 @@ define([ markmapLoaded = true; } drawMarkmap($el); + pluginLoaded.fire(); }); }; @@ -194,7 +199,7 @@ define([ } else if (language === 'mathjax') { var svg = Mathjax.tex2svg(code, {display: true}); if (!svg) { - return defaultCode.apply(renderer, arguments); + return defaultCode.apply(renderer, arguments); } return '
    '+ svg.innerHTML.replace(/xlink:href/g, "href") +'
    '; } else { @@ -345,7 +350,7 @@ define([ parent.removeChild(node); }; - var removeForbiddenTags = function (root) { // YYY + var removeForbiddenTags = function (root) { if (!root) { return; } if (forbiddenTags.indexOf(root.nodeName.toUpperCase()) !== -1) { removeNode(root); } slice(root.children).forEach(removeForbiddenTags);