@carbon/charts
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Carbon Charts component library
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{"version":3,"file":"choropleth-CKAPopp2.mjs","sources":["../../../node_modules/lodash-es/_arrayReduce.js","../../../node_modules/lodash-es/_basePropertyOf.js","../../../node_modules/lodash-es/_deburrLetter.js","../../../node_modules/lodash-es/deburr.js","../../../node_modules/lodash-es/_asciiWords.js","../../../node_modules/lodash-es/_hasUnicodeWord.js","../../../node_modules/lodash-es/_unicodeWords.js","../../../node_modules/lodash-es/words.js","../../../node_modules/lodash-es/_createCompounder.js","../../../node_modules/lodash-es/_baseClamp.js","../../../node_modules/lodash-es/clamp.js","../../../node_modules/lodash-es/_baseDelay.js","../../../node_modules/lodash-es/delay.js","../../../node_modules/lodash-es/_baseMap.js","../../../node_modules/lodash-es/map.js","../../../node_modules/lodash-es/flatMapDeep.js","../../../node_modules/lodash-es/isEqual.js","../../../node_modules/lodash-es/kebabCase.js","../../../node_modules/lodash-es/_baseSome.js","../../../node_modules/lodash-es/some.js","../../../node_modules/d3-array/src/fsum.js","../../../node_modules/d3-array/src/merge.js","../../../node_modules/d3-axis/src/identity.js","../../../node_modules/d3-axis/src/axis.js","../../../node_modules/d3-drag/src/noevent.js","../../../node_modules/d3-drag/src/nodrag.js","../../../node_modules/d3-interpolate/src/quantize.js","../../../node_modules/d3-ease/src/linear.js","../../../node_modules/d3-brush/src/constant.js","../../../node_modules/d3-brush/src/event.js","../../../node_modules/d3-brush/src/noevent.js","../../../node_modules/d3-brush/src/brush.js","../../../node_modules/d3-path/src/path.js","../../../node_modules/d3-geo/src/math.js","../../../node_modules/d3-geo/src/noop.js","../../../node_modules/d3-geo/src/stream.js","../../../node_modules/d3-geo/src/cartesian.js","../../../node_modules/d3-geo/src/compose.js","../../../node_modules/d3-geo/src/rotation.js","../../../node_modules/d3-geo/src/circle.js","../../../node_modules/d3-geo/src/clip/buffer.js","../../../node_modules/d3-geo/src/pointEqual.js","../../../node_modules/d3-geo/src/clip/rejoin.js","../../../node_modules/d3-geo/src/polygonContains.js","../../../node_modules/d3-geo/src/clip/index.js","../../../node_modules/d3-geo/src/clip/antimeridian.js","../../../node_modules/d3-geo/src/clip/circle.js","../../../node_modules/d3-geo/src/clip/line.js","../../../node_modules/d3-geo/src/clip/rectangle.js","../../../node_modules/d3-geo/src/identity.js","../../../node_modules/d3-geo/src/path/area.js","../../../node_modules/d3-geo/src/path/bounds.js","../../../node_modules/d3-geo/src/path/centroid.js","../../../node_modules/d3-geo/src/path/context.js","../../../node_modules/d3-geo/src/path/measure.js","../../../node_modules/d3-geo/src/path/string.js","../../../node_modules/d3-geo/src/path/index.js","../../../node_modules/d3-geo/src/transform.js","../../../node_modules/d3-geo/src/projection/fit.js","../../../node_modules/d3-geo/src/projection/resample.js","../../../node_modules/d3-geo/src/projection/index.js","../../../node_modules/d3-geo/src/projection/conic.js","../../../node_modules/d3-geo/src/projection/cylindricalEqualArea.js","../../../node_modules/d3-geo/src/projection/conicEqualArea.js","../../../node_modules/d3-geo/src/projection/albers.js","../../../node_modules/d3-geo/src/projection/mercator.js","../../../node_modules/d3-geo/src/projection/equirectangular.js","../../../node_modules/d3-geo/src/projection/conicEquidistant.js","../../../node_modules/d3-geo/src/projection/equalEarth.js","../../../node_modules/d3-geo/src/projection/naturalEarth1.js","../../../node_modules/d3-hierarchy/src/cluster.js","../../../node_modules/d3-hierarchy/src/hierarchy/count.js","../../../node_modules/d3-hierarchy/src/hierarchy/each.js","../../../node_modules/d3-hierarchy/src/hierarchy/eachBefore.js","../../../node_modules/d3-hierarchy/src/hierarchy/eachAfter.js","../../../node_modules/d3-hierarchy/src/hierarchy/find.js","../../../node_modules/d3-hierarchy/src/hierarchy/sum.js","../../../node_modules/d3-hierarchy/src/hierarchy/sort.js","../../../node_modules/d3-hierarchy/src/hierarchy/path.js","../../../node_modules/d3-hierarchy/src/hierarchy/ancestors.js","../../../node_modules/d3-hierarchy/src/hierarchy/descendants.js","../../../node_modules/d3-hierarchy/src/hierarchy/leaves.js","../../../node_modules/d3-hierarchy/src/hierarchy/links.js","../../../node_modules/d3-hierarchy/src/hierarchy/iterator.js","../../../node_modules/d3-hierarchy/src/hierarchy/index.js","../../../node_modules/d3-hierarchy/src/accessors.js","../../../node_modules/d3-hierarchy/src/constant.js","../../../node_modules/d3-hierarchy/src/lcg.js","../../../node_modules/d3-hierarchy/src/array.js","../../../node_modules/d3-hierarchy/src/pack/enclose.js","../../../node_modules/d3-hierarchy/src/pack/siblings.js","../../../node_modules/d3-hierarchy/src/pack/index.js","../../../node_modules/d3-hierarchy/src/treemap/round.js","../../../node_modules/d3-hierarchy/src/treemap/dice.js","../../../node_modules/d3-hierarchy/src/tree.js","../../../node_modules/d3-hierarchy/src/treemap/slice.js","../../../node_modules/d3-hierarchy/src/treemap/squarify.js","../../../node_modules/d3-hierarchy/src/treemap/index.js","../../../node_modules/d3/node_modules/d3-shape/src/path.js","../../../node_modules/d3/node_modules/d3-shape/src/arc.js","../../../node_modules/d3/node_modules/d3-shape/src/point.js","../../../node_modules/d3/node_modules/d3-shape/src/line.js","../../../node_modules/d3/node_modules/d3-shape/src/area.js","../../../node_modules/d3/node_modules/d3-shape/src/descending.js","../../../node_modules/d3/node_modules/d3-shape/src/identity.js","../../../node_modules/d3/node_modules/d3-shape/src/pie.js","../../../node_modules/d3/node_modules/d3-shape/src/curve/radial.js","../../../node_modules/d3/node_modules/d3-shape/src/lineRadial.js","../../../node_modules/d3/node_modules/d3-shape/src/curve/bump.js","../../../node_modules/d3/node_modules/d3-shape/src/link.js","../src/components/component.ts","../../../node_modules/dompurify/dist/purify.es.mjs","../src/utils/sanitizeHtml.ts","../src/components/axes/toolbar.ts","../src/components/layout/layout.ts","../src/components/layout/spacer.ts","../src/components/essentials/modal.ts","../src/components/essentials/title.ts","../src/components/essentials/legend.ts","../src/components/axes/chart-clip.ts","../src/components/essentials/canvas-chart-clip.ts","../../../node_modules/@carbon/utils-position/index.js","../src/components/essentials/tooltip.ts","../src/components/axes/grid-brush.ts","../src/components/axes/zoom-bar.ts","../src/components/essentials/threshold.ts","../src/components/essentials/highlights.ts","../src/components/essentials/tooltip-axis.ts","../../../node_modules/d3-sankey/node_modules/d3-array/src/max.js","../../../node_modules/d3-sankey/node_modules/d3-array/src/min.js","../../../node_modules/d3-sankey/node_modules/d3-array/src/sum.js","../../../node_modules/d3-sankey/src/align.js","../../../node_modules/d3-sankey/src/constant.js","../../../node_modules/d3-sankey/src/sankey.js","../../../node_modules/d3-shape/node_modules/d3-path/src/path.js","../../../node_modules/d3-shape/src/constant.js","../../../node_modules/d3-shape/src/point.js","../../../node_modules/d3-shape/src/array.js","../../../node_modules/d3-shape/src/link/index.js","../../../node_modules/d3-sankey/src/sankeyLinkHorizontal.js","../src/components/graphs/alluvial.ts","../src/components/axes/grid.ts","../src/components/graphs/area.ts","../src/components/graphs/line.ts","../src/components/axes/ruler.ts","../src/components/graphs/scatter.ts","../src/components/axes/axis.ts","../src/components/axes/hover-axis.ts","../src/components/axes/two-dimensional-axes.ts","../src/components/graphs/skeleton.ts","../src/components/graphs/boxplot.ts","../src/components/axes/zero-line.ts","../src/components/graphs/bubble.ts","../src/components/graphs/bullet.ts","../../../node_modules/topojson-client/src/identity.js","../../../node_modules/topojson-client/src/transform.js","../../../node_modules/topojson-client/src/reverse.js","../../../node_modules/topojson-client/src/feature.js","../../../node_modules/topojson-client/src/stitch.js","../../../node_modules/topojson-client/src/merge.js","../src/components/axes/ruler-binned.ts","../src/components/axes/ruler-stacked.ts","../src/components/diagrams/buildPaths.ts","../src/components/diagrams/markerDefinitions.ts","../src/components/essentials/color-scale-legend.ts","../src/components/essentials/title-meter.ts","../src/components/graphs/bar.ts","../src/components/graphs/circle-pack.ts","../src/components/graphs/pie.ts","../src/components/graphs/donut.ts","../src/components/graphs/gauge.ts","../src/components/graphs/bar-grouped.ts","../src/components/graphs/heatmap.ts","../src/components/graphs/histogram.ts","../src/components/graphs/lollipop.ts","../src/components/graphs/meter.ts","../src/components/graphs/radar.ts","../src/components/graphs/bar-simple.ts","../src/components/graphs/skeleton-lines.ts","../src/components/graphs/area-stacked.ts","../src/components/graphs/bar-stacked.ts","../src/components/graphs/scatter-stacked.ts","../src/components/graphs/tree.ts","../../../node_modules/@carbon/colors/es/index.js","../src/components/graphs/treemap.ts","../../../node_modules/d3-cloud/node_modules/d3-dispatch/src/dispatch.js","../../../node_modules/d3-cloud/index.js","../src/components/graphs/wordcloud.ts","../src/components/essentials/geo-projection.ts","../src/components/graphs/choropleth.ts"],"sourcesContent":["/**\n * A specialized version of `_.reduce` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the first element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\nfunction arrayReduce(array, iteratee, accumulator, initAccum) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n if (initAccum && length) {\n accumulator = array[++index];\n }\n while (++index < length) {\n accumulator = iteratee(accumulator, array[index], index, array);\n }\n return accumulator;\n}\n\nexport default arrayReduce;\n","/**\n * The base implementation of `_.propertyOf` without support for deep paths.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Function} Returns the new accessor function.\n */\nfunction basePropertyOf(object) {\n return function(key) {\n return object == null ? undefined : object[key];\n };\n}\n\nexport default basePropertyOf;\n","import basePropertyOf from './_basePropertyOf.js';\n\n/** Used to map Latin Unicode letters to basic Latin letters. */\nvar deburredLetters = {\n // Latin-1 Supplement block.\n '\\xc0': 'A', '\\xc1': 'A', '\\xc2': 'A', '\\xc3': 'A', '\\xc4': 'A', '\\xc5': 'A',\n '\\xe0': 'a', '\\xe1': 'a', '\\xe2': 'a', '\\xe3': 'a', '\\xe4': 'a', '\\xe5': 'a',\n '\\xc7': 'C', '\\xe7': 'c',\n '\\xd0': 'D', '\\xf0': 'd',\n '\\xc8': 'E', '\\xc9': 'E', '\\xca': 'E', '\\xcb': 'E',\n '\\xe8': 'e', '\\xe9': 'e', '\\xea': 'e', '\\xeb': 'e',\n '\\xcc': 'I', '\\xcd': 'I', '\\xce': 'I', '\\xcf': 'I',\n '\\xec': 'i', '\\xed': 'i', '\\xee': 'i', '\\xef': 'i',\n '\\xd1': 'N', '\\xf1': 'n',\n '\\xd2': 'O', '\\xd3': 'O', '\\xd4': 'O', '\\xd5': 'O', '\\xd6': 'O', '\\xd8': 'O',\n '\\xf2': 'o', '\\xf3': 'o', '\\xf4': 'o', '\\xf5': 'o', '\\xf6': 'o', '\\xf8': 'o',\n '\\xd9': 'U', '\\xda': 'U', '\\xdb': 'U', '\\xdc': 'U',\n '\\xf9': 'u', '\\xfa': 'u', '\\xfb': 'u', '\\xfc': 'u',\n '\\xdd': 'Y', '\\xfd': 'y', '\\xff': 'y',\n '\\xc6': 'Ae', '\\xe6': 'ae',\n '\\xde': 'Th', '\\xfe': 'th',\n '\\xdf': 'ss',\n // Latin Extended-A block.\n '\\u0100': 'A', '\\u0102': 'A', '\\u0104': 'A',\n '\\u0101': 'a', '\\u0103': 'a', '\\u0105': 'a',\n '\\u0106': 'C', '\\u0108': 'C', '\\u010a': 'C', '\\u010c': 'C',\n '\\u0107': 'c', '\\u0109': 'c', '\\u010b': 'c', '\\u010d': 'c',\n '\\u010e': 'D', '\\u0110': 'D', '\\u010f': 'd', '\\u0111': 'd',\n '\\u0112': 'E', '\\u0114': 'E', '\\u0116': 'E', '\\u0118': 'E', '\\u011a': 'E',\n '\\u0113': 'e', '\\u0115': 'e', '\\u0117': 'e', '\\u0119': 'e', '\\u011b': 'e',\n '\\u011c': 'G', '\\u011e': 'G', '\\u0120': 'G', '\\u0122': 'G',\n '\\u011d': 'g', '\\u011f': 'g', '\\u0121': 'g', '\\u0123': 'g',\n '\\u0124': 'H', '\\u0126': 'H', '\\u0125': 'h', '\\u0127': 'h',\n '\\u0128': 'I', '\\u012a': 'I', '\\u012c': 'I', '\\u012e': 'I', '\\u0130': 'I',\n '\\u0129': 'i', '\\u012b': 'i', '\\u012d': 'i', '\\u012f': 'i', '\\u0131': 'i',\n '\\u0134': 'J', '\\u0135': 'j',\n '\\u0136': 'K', '\\u0137': 'k', '\\u0138': 'k',\n '\\u0139': 'L', '\\u013b': 'L', '\\u013d': 'L', '\\u013f': 'L', '\\u0141': 'L',\n '\\u013a': 'l', '\\u013c': 'l', '\\u013e': 'l', '\\u0140': 'l', '\\u0142': 'l',\n '\\u0143': 'N', '\\u0145': 'N', '\\u0147': 'N', '\\u014a': 'N',\n '\\u0144': 'n', '\\u0146': 'n', '\\u0148': 'n', '\\u014b': 'n',\n '\\u014c': 'O', '\\u014e': 'O', '\\u0150': 'O',\n '\\u014d': 'o', '\\u014f': 'o', '\\u0151': 'o',\n '\\u0154': 'R', '\\u0156': 'R', '\\u0158': 'R',\n '\\u0155': 'r', '\\u0157': 'r', '\\u0159': 'r',\n '\\u015a': 'S', '\\u015c': 'S', '\\u015e': 'S', '\\u0160': 'S',\n '\\u015b': 's', '\\u015d': 's', '\\u015f': 's', '\\u0161': 's',\n '\\u0162': 'T', '\\u0164': 'T', '\\u0166': 'T',\n '\\u0163': 't', '\\u0165': 't', '\\u0167': 't',\n '\\u0168': 'U', '\\u016a': 'U', '\\u016c': 'U', '\\u016e': 'U', '\\u0170': 'U', '\\u0172': 'U',\n '\\u0169': 'u', '\\u016b': 'u', '\\u016d': 'u', '\\u016f': 'u', '\\u0171': 'u', '\\u0173': 'u',\n '\\u0174': 'W', '\\u0175': 'w',\n '\\u0176': 'Y', '\\u0177': 'y', '\\u0178': 'Y',\n '\\u0179': 'Z', '\\u017b': 'Z', '\\u017d': 'Z',\n '\\u017a': 'z', '\\u017c': 'z', '\\u017e': 'z',\n '\\u0132': 'IJ', '\\u0133': 'ij',\n '\\u0152': 'Oe', '\\u0153': 'oe',\n '\\u0149': \"'n\", '\\u017f': 's'\n};\n\n/**\n * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A\n * letters to basic Latin letters.\n *\n * @private\n * @param {string} letter The matched letter to deburr.\n * @returns {string} Returns the deburred letter.\n */\nvar deburrLetter = basePropertyOf(deburredLetters);\n\nexport default deburrLetter;\n","import deburrLetter from './_deburrLetter.js';\nimport toString from './toString.js';\n\n/** Used to match Latin Unicode letters (excluding mathematical operators). */\nvar reLatin = /[\\xc0-\\xd6\\xd8-\\xf6\\xf8-\\xff\\u0100-\\u017f]/g;\n\n/** Used to compose unicode character classes. */\nvar rsComboMarksRange = '\\\\u0300-\\\\u036f',\n reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange;\n\n/** Used to compose unicode capture groups. */\nvar rsCombo = '[' + rsComboRange + ']';\n\n/**\n * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and\n * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).\n */\nvar reComboMark = RegExp(rsCombo, 'g');\n\n/**\n * Deburrs `string` by converting\n * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)\n * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)\n * letters to basic Latin letters and removing\n * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to deburr.\n * @returns {string} Returns the deburred string.\n * @example\n *\n * _.deburr('déjà vu');\n * // => 'deja vu'\n */\nfunction deburr(string) {\n string = toString(string);\n return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');\n}\n\nexport default deburr;\n","/** Used to match words composed of alphanumeric characters. */\nvar reAsciiWord = /[^\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\x7f]+/g;\n\n/**\n * Splits an ASCII `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\nfunction asciiWords(string) {\n return string.match(reAsciiWord) || [];\n}\n\nexport default asciiWords;\n","/** Used to detect strings that need a more robust regexp to match words. */\nvar reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;\n\n/**\n * Checks if `string` contains a word composed of Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a word is found, else `false`.\n */\nfunction hasUnicodeWord(string) {\n return reHasUnicodeWord.test(string);\n}\n\nexport default hasUnicodeWord;\n","/** Used to compose unicode character classes. */\nvar rsAstralRange = '\\\\ud800-\\\\udfff',\n rsComboMarksRange = '\\\\u0300-\\\\u036f',\n reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n rsDingbatRange = '\\\\u2700-\\\\u27bf',\n rsLowerRange = 'a-z\\\\xdf-\\\\xf6\\\\xf8-\\\\xff',\n rsMathOpRange = '\\\\xac\\\\xb1\\\\xd7\\\\xf7',\n rsNonCharRange = '\\\\x00-\\\\x2f\\\\x3a-\\\\x40\\\\x5b-\\\\x60\\\\x7b-\\\\xbf',\n rsPunctuationRange = '\\\\u2000-\\\\u206f',\n rsSpaceRange = ' \\\\t\\\\x0b\\\\f\\\\xa0\\\\ufeff\\\\n\\\\r\\\\u2028\\\\u2029\\\\u1680\\\\u180e\\\\u2000\\\\u2001\\\\u2002\\\\u2003\\\\u2004\\\\u2005\\\\u2006\\\\u2007\\\\u2008\\\\u2009\\\\u200a\\\\u202f\\\\u205f\\\\u3000',\n rsUpperRange = 'A-Z\\\\xc0-\\\\xd6\\\\xd8-\\\\xde',\n rsVarRange = '\\\\ufe0e\\\\ufe0f',\n rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;\n\n/** Used to compose unicode capture groups. */\nvar rsApos = \"['\\u2019]\",\n rsBreak = '[' + rsBreakRange + ']',\n rsCombo = '[' + rsComboRange + ']',\n rsDigits = '\\\\d+',\n rsDingbat = '[' + rsDingbatRange + ']',\n rsLower = '[' + rsLowerRange + ']',\n rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',\n rsFitz = '\\\\ud83c[\\\\udffb-\\\\udfff]',\n rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',\n rsNonAstral = '[^' + rsAstralRange + ']',\n rsRegional = '(?:\\\\ud83c[\\\\udde6-\\\\uddff]){2}',\n rsSurrPair = '[\\\\ud800-\\\\udbff][\\\\udc00-\\\\udfff]',\n rsUpper = '[' + rsUpperRange + ']',\n rsZWJ = '\\\\u200d';\n\n/** Used to compose unicode regexes. */\nvar rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',\n rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',\n rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',\n rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',\n reOptMod = rsModifier + '?',\n rsOptVar = '[' + rsVarRange + ']?',\n rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',\n rsOrdLower = '\\\\d*(?:1st|2nd|3rd|(?![123])\\\\dth)(?=\\\\b|[A-Z_])',\n rsOrdUpper = '\\\\d*(?:1ST|2ND|3RD|(?![123])\\\\dTH)(?=\\\\b|[a-z_])',\n rsSeq = rsOptVar + reOptMod + rsOptJoin,\n rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq;\n\n/** Used to match complex or compound words. */\nvar reUnicodeWord = RegExp([\n rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',\n rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',\n rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,\n rsUpper + '+' + rsOptContrUpper,\n rsOrdUpper,\n rsOrdLower,\n rsDigits,\n rsEmoji\n].join('|'), 'g');\n\n/**\n * Splits a Unicode `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\nfunction unicodeWords(string) {\n return string.match(reUnicodeWord) || [];\n}\n\nexport default unicodeWords;\n","import asciiWords from './_asciiWords.js';\nimport hasUnicodeWord from './_hasUnicodeWord.js';\nimport toString from './toString.js';\nimport unicodeWords from './_unicodeWords.js';\n\n/**\n * Splits `string` into an array of its words.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {RegExp|string} [pattern] The pattern to match words.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the words of `string`.\n * @example\n *\n * _.words('fred, barney, & pebbles');\n * // => ['fred', 'barney', 'pebbles']\n *\n * _.words('fred, barney, & pebbles', /[^, ]+/g);\n * // => ['fred', 'barney', '&', 'pebbles']\n */\nfunction words(string, pattern, guard) {\n string = toString(string);\n pattern = guard ? undefined : pattern;\n\n if (pattern === undefined) {\n return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string);\n }\n return string.match(pattern) || [];\n}\n\nexport default words;\n","import arrayReduce from './_arrayReduce.js';\nimport deburr from './deburr.js';\nimport words from './words.js';\n\n/** Used to compose unicode capture groups. */\nvar rsApos = \"['\\u2019]\";\n\n/** Used to match apostrophes. */\nvar reApos = RegExp(rsApos, 'g');\n\n/**\n * Creates a function like `_.camelCase`.\n *\n * @private\n * @param {Function} callback The function to combine each word.\n * @returns {Function} Returns the new compounder function.\n */\nfunction createCompounder(callback) {\n return function(string) {\n return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');\n };\n}\n\nexport default createCompounder;\n","/**\n * The base implementation of `_.clamp` which doesn't coerce arguments.\n *\n * @private\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n */\nfunction baseClamp(number, lower, upper) {\n if (number === number) {\n if (upper !== undefined) {\n number = number <= upper ? number : upper;\n }\n if (lower !== undefined) {\n number = number >= lower ? number : lower;\n }\n }\n return number;\n}\n\nexport default baseClamp;\n","import baseClamp from './_baseClamp.js';\nimport toNumber from './toNumber.js';\n\n/**\n * Clamps `number` within the inclusive `lower` and `upper` bounds.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Number\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n * @example\n *\n * _.clamp(-10, -5, 5);\n * // => -5\n *\n * _.clamp(10, -5, 5);\n * // => 5\n */\nfunction clamp(number, lower, upper) {\n if (upper === undefined) {\n upper = lower;\n lower = undefined;\n }\n if (upper !== undefined) {\n upper = toNumber(upper);\n upper = upper === upper ? upper : 0;\n }\n if (lower !== undefined) {\n lower = toNumber(lower);\n lower = lower === lower ? lower : 0;\n }\n return baseClamp(toNumber(number), lower, upper);\n}\n\nexport default clamp;\n","/** Error message constants. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/**\n * The base implementation of `_.delay` and `_.defer` which accepts `args`\n * to provide to `func`.\n *\n * @private\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {Array} args The arguments to provide to `func`.\n * @returns {number|Object} Returns the timer id or timeout object.\n */\nfunction baseDelay(func, wait, args) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n return setTimeout(function() { func.apply(undefined, args); }, wait);\n}\n\nexport default baseDelay;\n","import baseDelay from './_baseDelay.js';\nimport baseRest from './_baseRest.js';\nimport toNumber from './toNumber.js';\n\n/**\n * Invokes `func` after `wait` milliseconds. Any additional arguments are\n * provided to `func` when it's invoked.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {...*} [args] The arguments to invoke `func` with.\n * @returns {number} Returns the timer id.\n * @example\n *\n * _.delay(function(text) {\n * console.log(text);\n * }, 1000, 'later');\n * // => Logs 'later' after one second.\n */\nvar delay = baseRest(function(func, wait, args) {\n return baseDelay(func, toNumber(wait) || 0, args);\n});\n\nexport default delay;\n","import baseEach from './_baseEach.js';\nimport isArrayLike from './isArrayLike.js';\n\n/**\n * The base implementation of `_.map` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\nfunction baseMap(collection, iteratee) {\n var index = -1,\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value, key, collection) {\n result[++index] = iteratee(value, key, collection);\n });\n return result;\n}\n\nexport default baseMap;\n","import arrayMap from './_arrayMap.js';\nimport baseIteratee from './_baseIteratee.js';\nimport baseMap from './_baseMap.js';\nimport isArray from './isArray.js';\n\n/**\n * Creates an array of values by running each element in `collection` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.\n *\n * The guarded methods are:\n * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,\n * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,\n * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,\n * `template`, `trim`, `trimEnd`, `trimStart`, and `words`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * _.map([4, 8], square);\n * // => [16, 64]\n *\n * _.map({ 'a': 4, 'b': 8 }, square);\n * // => [16, 64] (iteration order is not guaranteed)\n *\n * var users = [\n * { 'user': 'barney' },\n * { 'user': 'fred' }\n * ];\n *\n * // The `_.property` iteratee shorthand.\n * _.map(users, 'user');\n * // => ['barney', 'fred']\n */\nfunction map(collection, iteratee) {\n var func = isArray(collection) ? arrayMap : baseMap;\n return func(collection, baseIteratee(iteratee, 3));\n}\n\nexport default map;\n","import baseFlatten from './_baseFlatten.js';\nimport map from './map.js';\n\n/** Used as references for various `Number` constants. */\nvar INFINITY = 1 / 0;\n\n/**\n * This method is like `_.flatMap` except that it recursively flattens the\n * mapped results.\n *\n * @static\n * @memberOf _\n * @since 4.7.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [[[n, n]]];\n * }\n *\n * _.flatMapDeep([1, 2], duplicate);\n * // => [1, 1, 2, 2]\n */\nfunction flatMapDeep(collection, iteratee) {\n return baseFlatten(map(collection, iteratee), INFINITY);\n}\n\nexport default flatMapDeep;\n","import baseIsEqual from './_baseIsEqual.js';\n\n/**\n * Performs a deep comparison between two values to determine if they are\n * equivalent.\n *\n * **Note:** This method supports comparing arrays, array buffers, booleans,\n * date objects, error objects, maps, numbers, `Object` objects, regexes,\n * sets, strings, symbols, and typed arrays. `Object` objects are compared\n * by their own, not inherited, enumerable properties. Functions and DOM\n * nodes are compared by strict equality, i.e. `===`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.isEqual(object, other);\n * // => true\n *\n * object === other;\n * // => false\n */\nfunction isEqual(value, other) {\n return baseIsEqual(value, other);\n}\n\nexport default isEqual;\n","import createCompounder from './_createCompounder.js';\n\n/**\n * Converts `string` to\n * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the kebab cased string.\n * @example\n *\n * _.kebabCase('Foo Bar');\n * // => 'foo-bar'\n *\n * _.kebabCase('fooBar');\n * // => 'foo-bar'\n *\n * _.kebabCase('__FOO_BAR__');\n * // => 'foo-bar'\n */\nvar kebabCase = createCompounder(function(result, word, index) {\n return result + (index ? '-' : '') + word.toLowerCase();\n});\n\nexport default kebabCase;\n","import baseEach from './_baseEach.js';\n\n/**\n * The base implementation of `_.some` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\nfunction baseSome(collection, predicate) {\n var result;\n\n baseEach(collection, function(value, index, collection) {\n result = predicate(value, index, collection);\n return !result;\n });\n return !!result;\n}\n\nexport default baseSome;\n","import arraySome from './_arraySome.js';\nimport baseIteratee from './_baseIteratee.js';\nimport baseSome from './_baseSome.js';\nimport isArray from './isArray.js';\nimport isIterateeCall from './_isIterateeCall.js';\n\n/**\n * Checks if `predicate` returns truthy for **any** element of `collection`.\n * Iteration is stopped once `predicate` returns truthy. The predicate is\n * invoked with three arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n * @example\n *\n * _.some([null, 0, 'yes', false], Boolean);\n * // => true\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false }\n * ];\n *\n * // The `_.matches` iteratee shorthand.\n * _.some(users, { 'user': 'barney', 'active': false });\n * // => false\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.some(users, ['active', false]);\n * // => true\n *\n * // The `_.property` iteratee shorthand.\n * _.some(users, 'active');\n * // => true\n */\nfunction some(collection, predicate, guard) {\n var func = isArray(collection) ? arraySome : baseSome;\n if (guard && isIterateeCall(collection, predicate, guard)) {\n predicate = undefined;\n }\n return func(collection, baseIteratee(predicate, 3));\n}\n\nexport default some;\n","// https://github.com/python/cpython/blob/a74eea238f5baba15797e2e8b570d153bc8690a7/Modules/mathmodule.c#L1423\nexport class Adder {\n constructor() {\n this._partials = new Float64Array(32);\n this._n = 0;\n }\n add(x) {\n const p = this._partials;\n let i = 0;\n for (let j = 0; j < this._n && j < 32; j++) {\n const y = p[j],\n hi = x + y,\n lo = Math.abs(x) < Math.abs(y) ? x - (hi - y) : y - (hi - x);\n if (lo) p[i++] = lo;\n x = hi;\n }\n p[i] = x;\n this._n = i + 1;\n return this;\n }\n valueOf() {\n const p = this._partials;\n let n = this._n, x, y, lo, hi = 0;\n if (n > 0) {\n hi = p[--n];\n while (n > 0) {\n x = hi;\n y = p[--n];\n hi = x + y;\n lo = y - (hi - x);\n if (lo) break;\n }\n if (n > 0 && ((lo < 0 && p[n - 1] < 0) || (lo > 0 && p[n - 1] > 0))) {\n y = lo * 2;\n x = hi + y;\n if (y == x - hi) hi = x;\n }\n }\n return hi;\n }\n}\n\nexport function fsum(values, valueof) {\n const adder = new Adder();\n if (valueof === undefined) {\n for (let value of values) {\n if (value = +value) {\n adder.add(value);\n }\n }\n } else {\n let index = -1;\n for (let value of values) {\n if (value = +valueof(value, ++index, values)) {\n adder.add(value);\n }\n }\n }\n return +adder;\n}\n\nexport function fcumsum(values, valueof) {\n const adder = new Adder();\n let index = -1;\n return Float64Array.from(values, valueof === undefined\n ? v => adder.add(+v || 0)\n : v => adder.add(+valueof(v, ++index, values) || 0)\n );\n}\n","function* flatten(arrays) {\n for (const array of arrays) {\n yield* array;\n }\n}\n\nexport default function merge(arrays) {\n return Array.from(flatten(arrays));\n}\n","export default function(x) {\n return x;\n}\n","import identity from \"./identity.js\";\n\nvar top = 1,\n right = 2,\n bottom = 3,\n left = 4,\n epsilon = 1e-6;\n\nfunction translateX(x) {\n return \"translate(\" + x + \",0)\";\n}\n\nfunction translateY(y) {\n return \"translate(0,\" + y + \")\";\n}\n\nfunction number(scale) {\n return d => +scale(d);\n}\n\nfunction center(scale, offset) {\n offset = Math.max(0, scale.bandwidth() - offset * 2) / 2;\n if (scale.round()) offset = Math.round(offset);\n return d => +scale(d) + offset;\n}\n\nfunction entering() {\n return !this.__axis;\n}\n\nfunction axis(orient, scale) {\n var tickArguments = [],\n tickValues = null,\n tickFormat = null,\n tickSizeInner = 6,\n tickSizeOuter = 6,\n tickPadding = 3,\n offset = typeof window !== \"undefined\" && window.devicePixelRatio > 1 ? 0 : 0.5,\n k = orient === top || orient === left ? -1 : 1,\n x = orient === left || orient === right ? \"x\" : \"y\",\n transform = orient === top || orient === bottom ? translateX : translateY;\n\n function axis(context) {\n var values = tickValues == null ? (scale.ticks ? scale.ticks.apply(scale, tickArguments) : scale.domain()) : tickValues,\n format = tickFormat == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments) : identity) : tickFormat,\n spacing = Math.max(tickSizeInner, 0) + tickPadding,\n range = scale.range(),\n range0 = +range[0] + offset,\n range1 = +range[range.length - 1] + offset,\n position = (scale.bandwidth ? center : number)(scale.copy(), offset),\n selection = context.selection ? context.selection() : context,\n path = selection.selectAll(\".domain\").data([null]),\n tick = selection.selectAll(\".tick\").data(values, scale).order(),\n tickExit = tick.exit(),\n tickEnter = tick.enter().append(\"g\").attr(\"class\", \"tick\"),\n line = tick.select(\"line\"),\n text = tick.select(\"text\");\n\n path = path.merge(path.enter().insert(\"path\", \".tick\")\n .attr(\"class\", \"domain\")\n .attr(\"stroke\", \"currentColor\"));\n\n tick = tick.merge(tickEnter);\n\n line = line.merge(tickEnter.append(\"line\")\n .attr(\"stroke\", \"currentColor\")\n .attr(x + \"2\", k * tickSizeInner));\n\n text = text.merge(tickEnter.append(\"text\")\n .attr(\"fill\", \"currentColor\")\n .attr(x, k * spacing)\n .attr(\"dy\", orient === top ? \"0em\" : orient === bottom ? \"0.71em\" : \"0.32em\"));\n\n if (context !== selection) {\n path = path.transition(context);\n tick = tick.transition(context);\n line = line.transition(context);\n text = text.transition(context);\n\n tickExit = tickExit.transition(context)\n .attr(\"opacity\", epsilon)\n .attr(\"transform\", function(d) { return isFinite(d = position(d)) ? transform(d + offset) : this.getAttribute(\"transform\"); });\n\n tickEnter\n .attr(\"opacity\", epsilon)\n .attr(\"transform\", function(d) { var p = this.parentNode.__axis; return transform((p && isFinite(p = p(d)) ? p : position(d)) + offset); });\n }\n\n tickExit.remove();\n\n path\n .attr(\"d\", orient === left || orient === right\n ? (tickSizeOuter ? \"M\" + k * tickSizeOuter + \",\" + range0 + \"H\" + offset + \"V\" + range1 + \"H\" + k * tickSizeOuter : \"M\" + offset + \",\" + range0 + \"V\" + range1)\n : (tickSizeOuter ? \"M\" + range0 + \",\" + k * tickSizeOuter + \"V\" + offset + \"H\" + range1 + \"V\" + k * tickSizeOuter : \"M\" + range0 + \",\" + offset + \"H\" + range1));\n\n tick\n .attr(\"opacity\", 1)\n .attr(\"transform\", function(d) { return transform(position(d) + offset); });\n\n line\n .attr(x + \"2\", k * tickSizeInner);\n\n text\n .attr(x, k * spacing)\n .text(format);\n\n selection.filter(entering)\n .attr(\"fill\", \"none\")\n .attr(\"font-size\", 10)\n .attr(\"font-family\", \"sans-serif\")\n .attr(\"text-anchor\", orient === right ? \"start\" : orient === left ? \"end\" : \"middle\");\n\n selection\n .each(function() { this.__axis = position; });\n }\n\n axis.scale = function(_) {\n return arguments.length ? (scale = _, axis) : scale;\n };\n\n axis.ticks = function() {\n return tickArguments = Array.from(arguments), axis;\n };\n\n axis.tickArguments = function(_) {\n return arguments.length ? (tickArguments = _ == null ? [] : Array.from(_), axis) : tickArguments.slice();\n };\n\n axis.tickValues = function(_) {\n return arguments.length ? (tickValues = _ == null ? null : Array.from(_), axis) : tickValues && tickValues.slice();\n };\n\n axis.tickFormat = function(_) {\n return arguments.length ? (tickFormat = _, axis) : tickFormat;\n };\n\n axis.tickSize = function(_) {\n return arguments.length ? (tickSizeInner = tickSizeOuter = +_, axis) : tickSizeInner;\n };\n\n axis.tickSizeInner = function(_) {\n return arguments.length ? (tickSizeInner = +_, axis) : tickSizeInner;\n };\n\n axis.tickSizeOuter = function(_) {\n return arguments.length ? (tickSizeOuter = +_, axis) : tickSizeOuter;\n };\n\n axis.tickPadding = function(_) {\n return arguments.length ? (tickPadding = +_, axis) : tickPadding;\n };\n\n axis.offset = function(_) {\n return arguments.length ? (offset = +_, axis) : offset;\n };\n\n return axis;\n}\n\nexport function axisTop(scale) {\n return axis(top, scale);\n}\n\nexport function axisRight(scale) {\n return axis(right, scale);\n}\n\nexport function axisBottom(scale) {\n return axis(bottom, scale);\n}\n\nexport function axisLeft(scale) {\n return axis(left, scale);\n}\n","// These are typically used in conjunction with noevent to ensure that we can\n// preventDefault on the event.\nexport const nonpassive = {passive: false};\nexport const nonpassivecapture = {capture: true, passive: false};\n\nexport function nopropagation(event) {\n event.stopImmediatePropagation();\n}\n\nexport default function(event) {\n event.preventDefault();\n event.stopImmediatePropagation();\n}\n","import {select} from \"d3-selection\";\nimport noevent, {nonpassivecapture} from \"./noevent.js\";\n\nexport default function(view) {\n var root = view.document.documentElement,\n selection = select(view).on(\"dragstart.drag\", noevent, nonpassivecapture);\n if (\"onselectstart\" in root) {\n selection.on(\"selectstart.drag\", noevent, nonpassivecapture);\n } else {\n root.__noselect = root.style.MozUserSelect;\n root.style.MozUserSelect = \"none\";\n }\n}\n\nexport function yesdrag(view, noclick) {\n var root = view.document.documentElement,\n selection = select(view).on(\"dragstart.drag\", null);\n if (noclick) {\n selection.on(\"click.drag\", noevent, nonpassivecapture);\n setTimeout(function() { selection.on(\"click.drag\", null); }, 0);\n }\n if (\"onselectstart\" in root) {\n selection.on(\"selectstart.drag\", null);\n } else {\n root.style.MozUserSelect = root.__noselect;\n delete root.__noselect;\n }\n}\n","export default function(interpolator, n) {\n var samples = new Array(n);\n for (var i = 0; i < n; ++i) samples[i] = interpolator(i / (n - 1));\n return samples;\n}\n","export const linear = t => +t;\n","export default x => () => x;\n","export default function BrushEvent(type, {\n sourceEvent,\n target,\n selection,\n mode,\n dispatch\n}) {\n Object.defineProperties(this, {\n type: {value: type, enumerable: true, configurable: true},\n sourceEvent: {value: sourceEvent, enumerable: true, configurable: true},\n target: {value: target, enumerable: true, configurable: true},\n selection: {value: selection, enumerable: true, configurable: true},\n mode: {value: mode, enumerable: true, configurable: true},\n _: {value: dispatch}\n });\n}\n","export function nopropagation(event) {\n event.stopImmediatePropagation();\n}\n\nexport default function(event) {\n event.preventDefault();\n event.stopImmediatePropagation();\n}\n","import {dispatch} from \"d3-dispatch\";\nimport {dragDisable, dragEnable} from \"d3-drag\";\nimport {interpolate} from \"d3-interpolate\";\nimport {pointer, select} from \"d3-selection\";\nimport {interrupt} from \"d3-transition\";\nimport constant from \"./constant.js\";\nimport BrushEvent from \"./event.js\";\nimport noevent, {nopropagation} from \"./noevent.js\";\n\nvar MODE_DRAG = {name: \"drag\"},\n MODE_SPACE = {name: \"space\"},\n MODE_HANDLE = {name: \"handle\"},\n MODE_CENTER = {name: \"center\"};\n\nconst {abs, max, min} = Math;\n\nfunction number1(e) {\n return [+e[0], +e[1]];\n}\n\nfunction number2(e) {\n return [number1(e[0]), number1(e[1])];\n}\n\nvar X = {\n name: \"x\",\n handles: [\"w\", \"e\"].map(type),\n input: function(x, e) { return x == null ? null : [[+x[0], e[0][1]], [+x[1], e[1][1]]]; },\n output: function(xy) { return xy && [xy[0][0], xy[1][0]]; }\n};\n\nvar Y = {\n name: \"y\",\n handles: [\"n\", \"s\"].map(type),\n input: function(y, e) { return y == null ? null : [[e[0][0], +y[0]], [e[1][0], +y[1]]]; },\n output: function(xy) { return xy && [xy[0][1], xy[1][1]]; }\n};\n\nvar XY = {\n name: \"xy\",\n handles: [\"n\", \"w\", \"e\", \"s\", \"nw\", \"ne\", \"sw\", \"se\"].map(type),\n input: function(xy) { return xy == null ? null : number2(xy); },\n output: function(xy) { return xy; }\n};\n\nvar cursors = {\n overlay: \"crosshair\",\n selection: \"move\",\n n: \"ns-resize\",\n e: \"ew-resize\",\n s: \"ns-resize\",\n w: \"ew-resize\",\n nw: \"nwse-resize\",\n ne: \"nesw-resize\",\n se: \"nwse-resize\",\n sw: \"nesw-resize\"\n};\n\nvar flipX = {\n e: \"w\",\n w: \"e\",\n nw: \"ne\",\n ne: \"nw\",\n se: \"sw\",\n sw: \"se\"\n};\n\nvar flipY = {\n n: \"s\",\n s: \"n\",\n nw: \"sw\",\n ne: \"se\",\n se: \"ne\",\n sw: \"nw\"\n};\n\nvar signsX = {\n overlay: +1,\n selection: +1,\n n: null,\n e: +1,\n s: null,\n w: -1,\n nw: -1,\n ne: +1,\n se: +1,\n sw: -1\n};\n\nvar signsY = {\n overlay: +1,\n selection: +1,\n n: -1,\n e: null,\n s: +1,\n w: null,\n nw: -1,\n ne: -1,\n se: +1,\n sw: +1\n};\n\nfunction type(t) {\n return {type: t};\n}\n\n// Ignore right-click, since that should open the context menu.\nfunction defaultFilter(event) {\n return !event.ctrlKey && !event.button;\n}\n\nfunction defaultExtent() {\n var svg = this.ownerSVGElement || this;\n if (svg.hasAttribute(\"viewBox\")) {\n svg = svg.viewBox.baseVal;\n return [[svg.x, svg.y], [svg.x + svg.width, svg.y + svg.height]];\n }\n return [[0, 0], [svg.width.baseVal.value, svg.height.baseVal.value]];\n}\n\nfunction defaultTouchable() {\n return navigator.maxTouchPoints || (\"ontouchstart\" in this);\n}\n\n// Like d3.local, but with the name “__brush” rather than auto-generated.\nfunction local(node) {\n while (!node.__brush) if (!(node = node.parentNode)) return;\n return node.__brush;\n}\n\nfunction empty(extent) {\n return extent[0][0] === extent[1][0]\n || extent[0][1] === extent[1][1];\n}\n\nexport function brushSelection(node) {\n var state = node.__brush;\n return state ? state.dim.output(state.selection) : null;\n}\n\nexport function brushX() {\n return brush(X);\n}\n\nexport function brushY() {\n return brush(Y);\n}\n\nexport default function() {\n return brush(XY);\n}\n\nfunction brush(dim) {\n var extent = defaultExtent,\n filter = defaultFilter,\n touchable = defaultTouchable,\n keys = true,\n listeners = dispatch(\"start\", \"brush\", \"end\"),\n handleSize = 6,\n touchending;\n\n function brush(group) {\n var overlay = group\n .property(\"__brush\", initialize)\n .selectAll(\".overlay\")\n .data([type(\"overlay\")]);\n\n overlay.enter().append(\"rect\")\n .attr(\"class\", \"overlay\")\n .attr(\"pointer-events\", \"all\")\n .attr(\"cursor\", cursors.overlay)\n .merge(overlay)\n .each(function() {\n var extent = local(this).extent;\n select(this)\n .attr(\"x\", extent[0][0])\n .attr(\"y\", extent[0][1])\n .attr(\"width\", extent[1][0] - extent[0][0])\n .attr(\"height\", extent[1][1] - extent[0][1]);\n });\n\n group.selectAll(\".selection\")\n .data([type(\"selection\")])\n .enter().append(\"rect\")\n .attr(\"class\", \"selection\")\n .attr(\"cursor\", cursors.selection)\n .attr(\"fill\", \"#777\")\n .attr(\"fill-opacity\", 0.3)\n .attr(\"stroke\", \"#fff\")\n .attr(\"shape-rendering\", \"crispEdges\");\n\n var handle = group.selectAll(\".handle\")\n .data(dim.handles, function(d) { return d.type; });\n\n handle.exit().remove();\n\n handle.enter().append(\"rect\")\n .attr(\"class\", function(d) { return \"handle handle--\" + d.type; })\n .attr(\"cursor\", function(d) { return cursors[d.type]; });\n\n group\n .each(redraw)\n .attr(\"fill\", \"none\")\n .attr(\"pointer-events\", \"all\")\n .on(\"mousedown.brush\", started)\n .filter(touchable)\n .on(\"touchstart.brush\", started)\n .on(\"touchmove.brush\", touchmoved)\n .on(\"touchend.brush touchcancel.brush\", touchended)\n .style(\"touch-action\", \"none\")\n .style(\"-webkit-tap-highlight-color\", \"rgba(0,0,0,0)\");\n }\n\n brush.move = function(group, selection, event) {\n if (group.tween) {\n group\n .on(\"start.brush\", function(event) { emitter(this, arguments).beforestart().start(event); })\n .on(\"interrupt.brush end.brush\", function(event) { emitter(this, arguments).end(event); })\n .tween(\"brush\", function() {\n var that = this,\n state = that.__brush,\n emit = emitter(that, arguments),\n selection0 = state.selection,\n selection1 = dim.input(typeof selection === \"function\" ? selection.apply(this, arguments) : selection, state.extent),\n i = interpolate(selection0, selection1);\n\n function tween(t) {\n state.selection = t === 1 && selection1 === null ? null : i(t);\n redraw.call(that);\n emit.brush();\n }\n\n return selection0 !== null && selection1 !== null ? tween : tween(1);\n });\n } else {\n group\n .each(function() {\n var that = this,\n args = arguments,\n state = that.__brush,\n selection1 = dim.input(typeof selection === \"function\" ? selection.apply(that, args) : selection, state.extent),\n emit = emitter(that, args).beforestart();\n\n interrupt(that);\n state.selection = selection1 === null ? null : selection1;\n redraw.call(that);\n emit.start(event).brush(event).end(event);\n });\n }\n };\n\n brush.clear = function(group, event) {\n brush.move(group, null, event);\n };\n\n function redraw() {\n var group = select(this),\n selection = local(this).selection;\n\n if (selection) {\n group.selectAll(\".selection\")\n .style(\"display\", null)\n .attr(\"x\", selection[0][0])\n .attr(\"y\", selection[0][1])\n .attr(\"width\", selection[1][0] - selection[0][0])\n .attr(\"height\", selection[1][1] - selection[0][1]);\n\n group.selectAll(\".handle\")\n .style(\"display\", null)\n .attr(\"x\", function(d) { return d.type[d.type.length - 1] === \"e\" ? selection[1][0] - handleSize / 2 : selection[0][0] - handleSize / 2; })\n .attr(\"y\", function(d) { return d.type[0] === \"s\" ? selection[1][