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Diffstat (limited to 'libs/bower_components/chroma-js/chroma.js')
| -rw-r--r-- | libs/bower_components/chroma-js/chroma.js | 1863 |
1 files changed, 0 insertions, 1863 deletions
diff --git a/libs/bower_components/chroma-js/chroma.js b/libs/bower_components/chroma-js/chroma.js deleted file mode 100644 index 7433eaae41..0000000000 --- a/libs/bower_components/chroma-js/chroma.js +++ /dev/null @@ -1,1863 +0,0 @@ -// Generated by CoffeeScript 1.6.2 -/** echo * @license echo * while read i do echo * done echo -*/ - - -(function() { - var Color, K, PITHIRD, TWOPI, X, Y, Z, bezier, brewer, chroma, clip_rgb, colors, cos, css2rgb, hex2rgb, hsi2rgb, hsl2rgb, hsv2rgb, lab2lch, lab2rgb, lab_xyz, lch2lab, lch2rgb, limit, luminance, luminance_x, rgb2hex, rgb2hsi, rgb2hsl, rgb2hsv, rgb2lab, rgb2lch, rgb_xyz, root, type, unpack, xyz_lab, xyz_rgb, _ref; - - chroma = function(x, y, z, m) { - return new Color(x, y, z, m); - }; - - if ((typeof module !== "undefined" && module !== null) && (module.exports != null)) { - module.exports = chroma; - } - - if (typeof define === 'function' && define.amd) { - define([], function() { - return chroma; - }); - } else { - root = typeof exports !== "undefined" && exports !== null ? exports : this; - root.chroma = chroma; - } - - chroma.color = function(x, y, z, m) { - return new Color(x, y, z, m); - }; - - chroma.hsl = function(h, s, l, a) { - return new Color(h, s, l, a, 'hsl'); - }; - - chroma.hsv = function(h, s, v, a) { - return new Color(h, s, v, a, 'hsv'); - }; - - chroma.rgb = function(r, g, b, a) { - return new Color(r, g, b, a, 'rgb'); - }; - - chroma.hex = function(x) { - return new Color(x); - }; - - chroma.css = function(x) { - return new Color(x); - }; - - chroma.lab = function(l, a, b) { - return new Color(l, a, b, 'lab'); - }; - - chroma.lch = function(l, c, h) { - return new Color(l, c, h, 'lch'); - }; - - chroma.hsi = function(h, s, i) { - return new Color(h, s, i, 'hsi'); - }; - - chroma.gl = function(r, g, b, a) { - return new Color(r * 255, g * 255, b * 255, a, 'gl'); - }; - - chroma.interpolate = function(a, b, f, m) { - if ((a == null) || (b == null)) { - return '#000'; - } - if (type(a) === 'string') { - a = new Color(a); - } - if (type(b) === 'string') { - b = new Color(b); - } - return a.interpolate(f, b, m); - }; - - chroma.mix = chroma.interpolate; - - chroma.contrast = function(a, b) { - var l1, l2; - - if (type(a) === 'string') { - a = new Color(a); - } - if (type(b) === 'string') { - b = new Color(b); - } - l1 = a.luminance(); - l2 = b.luminance(); - if (l1 > l2) { - return (l1 + 0.05) / (l2 + 0.05); - } else { - return (l2 + 0.05) / (l1 + 0.05); - } - }; - - chroma.luminance = function(color) { - return chroma(color).luminance(); - }; - - chroma._Color = Color; - - /** - chroma.js - - Copyright (c) 2011-2013, Gregor Aisch - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - * Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. - - * Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - - * The name Gregor Aisch may not be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - DISCLAIMED. IN NO EVENT SHALL GREGOR AISCH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - - @source: https://github.com/gka/chroma.js - */ - - - Color = (function() { - function Color() { - var a, arg, args, m, me, me_rgb, x, y, z, _i, _len, _ref, _ref1, _ref2, _ref3, _ref4; - - me = this; - args = []; - for (_i = 0, _len = arguments.length; _i < _len; _i++) { - arg = arguments[_i]; - if (arg != null) { - args.push(arg); - } - } - if (args.length === 0) { - _ref = [255, 0, 255, 1, 'rgb'], x = _ref[0], y = _ref[1], z = _ref[2], a = _ref[3], m = _ref[4]; - } else if (type(args[0]) === "array") { - if (args[0].length === 3) { - _ref1 = args[0], x = _ref1[0], y = _ref1[1], z = _ref1[2]; - a = 1; - } else if (args[0].length === 4) { - _ref2 = args[0], x = _ref2[0], y = _ref2[1], z = _ref2[2], a = _ref2[3]; - } else { - throw 'unknown input argument'; - } - m = (_ref3 = args[1]) != null ? _ref3 : 'rgb'; - } else if (type(args[0]) === "string") { - x = args[0]; - m = 'hex'; - } else if (type(args[0]) === "object") { - _ref4 = args[0]._rgb, x = _ref4[0], y = _ref4[1], z = _ref4[2], a = _ref4[3]; - m = 'rgb'; - } else if (args.length >= 3) { - x = args[0]; - y = args[1]; - z = args[2]; - } - if (args.length === 3) { - m = 'rgb'; - a = 1; - } else if (args.length === 4) { - if (type(args[3]) === "string") { - m = args[3]; - a = 1; - } else if (type(args[3]) === "number") { - m = 'rgb'; - a = args[3]; - } - } else if (args.length === 5) { - a = args[3]; - m = args[4]; - } - if (a == null) { - a = 1; - } - if (m === 'rgb') { - me._rgb = [x, y, z, a]; - } else if (m === 'gl') { - me._rgb = [x * 255, y * 255, z * 255, a]; - } else if (m === 'hsl') { - me._rgb = hsl2rgb(x, y, z); - me._rgb[3] = a; - } else if (m === 'hsv') { - me._rgb = hsv2rgb(x, y, z); - me._rgb[3] = a; - } else if (m === 'hex') { - me._rgb = hex2rgb(x); - } else if (m === 'lab') { - me._rgb = lab2rgb(x, y, z); - me._rgb[3] = a; - } else if (m === 'lch') { - me._rgb = lch2rgb(x, y, z); - me._rgb[3] = a; - } else if (m === 'hsi') { - me._rgb = hsi2rgb(x, y, z); - me._rgb[3] = a; - } - me_rgb = clip_rgb(me._rgb); - } - - Color.prototype.rgb = function() { - return this._rgb.slice(0, 3); - }; - - Color.prototype.rgba = function() { - return this._rgb; - }; - - Color.prototype.hex = function() { - return rgb2hex(this._rgb); - }; - - Color.prototype.toString = function() { - return this.name(); - }; - - Color.prototype.hsl = function() { - return rgb2hsl(this._rgb); - }; - - Color.prototype.hsv = function() { - return rgb2hsv(this._rgb); - }; - - Color.prototype.lab = function() { - return rgb2lab(this._rgb); - }; - - Color.prototype.lch = function() { - return rgb2lch(this._rgb); - }; - - Color.prototype.hsi = function() { - return rgb2hsi(this._rgb); - }; - - Color.prototype.gl = function() { - return [this._rgb[0] / 255, this._rgb[1] / 255, this._rgb[2] / 255, this._rgb[3]]; - }; - - Color.prototype.luminance = function() { - return luminance(this._rgb); - }; - - Color.prototype.name = function() { - var h, k; - - h = this.hex(); - for (k in chroma.colors) { - if (h === chroma.colors[k]) { - return k; - } - } - return h; - }; - - Color.prototype.alpha = function(alpha) { - if (arguments.length) { - this._rgb[3] = alpha; - return this; - } - return this._rgb[3]; - }; - - Color.prototype.css = function(mode) { - var hsl, me, rgb, rnd; - - if (mode == null) { - mode = 'rgb'; - } - me = this; - rgb = me._rgb; - if (mode.length === 3 && rgb[3] < 1) { - mode += 'a'; - } - if (mode === 'rgb') { - return mode + '(' + rgb.slice(0, 3).map(Math.round).join(',') + ')'; - } else if (mode === 'rgba') { - return mode + '(' + rgb.slice(0, 3).map(Math.round).join(',') + ',' + rgb[3] + ')'; - } else if (mode === 'hsl' || mode === 'hsla') { - hsl = me.hsl(); - rnd = function(a) { - return Math.round(a * 100) / 100; - }; - hsl[0] = rnd(hsl[0]); - hsl[1] = rnd(hsl[1] * 100) + '%'; - hsl[2] = rnd(hsl[2] * 100) + '%'; - if (mode.length === 4) { - hsl[3] = rgb[3]; - } - return mode + '(' + hsl.join(',') + ')'; - } - }; - - Color.prototype.interpolate = function(f, col, m) { - /* - interpolates between colors - f = 0 --> me - f = 1 --> col - */ - - var dh, hue, hue0, hue1, lbv, lbv0, lbv1, me, res, sat, sat0, sat1, xyz0, xyz1; - - me = this; - if (m == null) { - m = 'rgb'; - } - if (type(col) === "string") { - col = new Color(col); - } - if (m === 'hsl' || m === 'hsv' || m === 'lch' || m === 'hsi') { - if (m === 'hsl') { - xyz0 = me.hsl(); - xyz1 = col.hsl(); - } else if (m === 'hsv') { - xyz0 = me.hsv(); - xyz1 = col.hsv(); - } else if (m === 'hsi') { - xyz0 = me.hsi(); - xyz1 = col.hsi(); - } else if (m === 'lch') { - xyz0 = me.lch(); - xyz1 = col.lch(); - } - if (m.substr(0, 1) === 'h') { - hue0 = xyz0[0], sat0 = xyz0[1], lbv0 = xyz0[2]; - hue1 = xyz1[0], sat1 = xyz1[1], lbv1 = xyz1[2]; - } else { - lbv0 = xyz0[0], sat0 = xyz0[1], hue0 = xyz0[2]; - lbv1 = xyz1[0], sat1 = xyz1[1], hue1 = xyz1[2]; - } - if (!isNaN(hue0) && !isNaN(hue1)) { - if (hue1 > hue0 && hue1 - hue0 > 180) { - dh = hue1 - (hue0 + 360); - } else if (hue1 < hue0 && hue0 - hue1 > 180) { - dh = hue1 + 360 - hue0; - } else { - dh = hue1 - hue0; - } - hue = hue0 + f * dh; - } else if (!isNaN(hue0)) { - hue = hue0; - if ((lbv1 === 1 || lbv1 === 0) && m !== 'hsv') { - sat = sat0; - } - } else if (!isNaN(hue1)) { - hue = hue1; - if ((lbv0 === 1 || lbv0 === 0) && m !== 'hsv') { - sat = sat1; - } - } else { - hue = Number.NaN; - } - if (sat == null) { - sat = sat0 + f * (sat1 - sat0); - } - lbv = lbv0 + f * (lbv1 - lbv0); - if (m.substr(0, 1) === 'h') { - res = new Color(hue, sat, lbv, m); - } else { - res = new Color(lbv, sat, hue, m); - } - } else if (m === 'rgb') { - xyz0 = me._rgb; - xyz1 = col._rgb; - res = new Color(xyz0[0] + f * (xyz1[0] - xyz0[0]), xyz0[1] + f * (xyz1[1] - xyz0[1]), xyz0[2] + f * (xyz1[2] - xyz0[2]), m); - } else if (m === 'lab') { - xyz0 = me.lab(); - xyz1 = col.lab(); - res = new Color(xyz0[0] + f * (xyz1[0] - xyz0[0]), xyz0[1] + f * (xyz1[1] - xyz0[1]), xyz0[2] + f * (xyz1[2] - xyz0[2]), m); - } else { - throw "color mode " + m + " is not supported"; - } - res.alpha(me.alpha() + f * (col.alpha() - me.alpha())); - return res; - }; - - Color.prototype.premultiply = function() { - var a, rgb; - - rgb = this.rgb(); - a = this.alpha(); - return chroma(rgb[0] * a, rgb[1] * a, rgb[2] * a, a); - }; - - Color.prototype.darken = function(amount) { - var lch, me; - - if (amount == null) { - amount = 20; - } - me = this; - lch = me.lch(); - lch[0] -= amount; - return chroma.lch(lch).alpha(me.alpha()); - }; - - Color.prototype.darker = function(amount) { - return this.darken(amount); - }; - - Color.prototype.brighten = function(amount) { - if (amount == null) { - amount = 20; - } - return this.darken(-amount); - }; - - Color.prototype.brighter = function(amount) { - return this.brighten(amount); - }; - - Color.prototype.saturate = function(amount) { - var lch, me; - - if (amount == null) { - amount = 20; - } - me = this; - lch = me.lch(); - lch[1] += amount; - return chroma.lch(lch).alpha(me.alpha()); - }; - - Color.prototype.desaturate = function(amount) { - if (amount == null) { - amount = 20; - } - return this.saturate(-amount); - }; - - return Color; - - })(); - - clip_rgb = function(rgb) { - var i; - - for (i in rgb) { - if (i < 3) { - if (rgb[i] < 0) { - rgb[i] = 0; - } - if (rgb[i] > 255) { - rgb[i] = 255; - } - } else if (i === 3) { - if (rgb[i] < 0) { - rgb[i] = 0; - } - if (rgb[i] > 1) { - rgb[i] = 1; - } - } - } - return rgb; - }; - - css2rgb = function(css) { - var hsl, i, m, rgb, _i, _j, _k, _l; - - css = css.toLowerCase(); - if ((chroma.colors != null) && chroma.colors[css]) { - return hex2rgb(chroma.colors[css]); - } - if (m = css.match(/rgb\(\s*(\-?\d+),\s*(\-?\d+)\s*,\s*(\-?\d+)\s*\)/)) { - rgb = m.slice(1, 4); - for (i = _i = 0; _i <= 2; i = ++_i) { - rgb[i] = +rgb[i]; - } - rgb[3] = 1; - } else if (m = css.match(/rgba\(\s*(\-?\d+),\s*(\-?\d+)\s*,\s*(\-?\d+)\s*,\s*([01]|[01]?\.\d+)\)/)) { - rgb = m.slice(1, 5); - for (i = _j = 0; _j <= 3; i = ++_j) { - rgb[i] = +rgb[i]; - } - } else if (m = css.match(/rgb\(\s*(\-?\d+(?:\.\d+)?)%,\s*(\-?\d+(?:\.\d+)?)%\s*,\s*(\-?\d+(?:\.\d+)?)%\s*\)/)) { - rgb = m.slice(1, 4); - for (i = _k = 0; _k <= 2; i = ++_k) { - rgb[i] = Math.round(rgb[i] * 2.55); - } - rgb[3] = 1; - } else if (m = css.match(/rgba\(\s*(\-?\d+(?:\.\d+)?)%,\s*(\-?\d+(?:\.\d+)?)%\s*,\s*(\-?\d+(?:\.\d+)?)%\s*,\s*([01]|[01]?\.\d+)\)/)) { - rgb = m.slice(1, 5); - for (i = _l = 0; _l <= 2; i = ++_l) { - rgb[i] = Math.round(rgb[i] * 2.55); - } - rgb[3] = +rgb[3]; - } else if (m = css.match(/hsl\(\s*(\-?\d+(?:\.\d+)?),\s*(\-?\d+(?:\.\d+)?)%\s*,\s*(\-?\d+(?:\.\d+)?)%\s*\)/)) { - hsl = m.slice(1, 4); - hsl[1] *= 0.01; - hsl[2] *= 0.01; - rgb = hsl2rgb(hsl); - rgb[3] = 1; - } else if (m = css.match(/hsla\(\s*(\-?\d+(?:\.\d+)?),\s*(\-?\d+(?:\.\d+)?)%\s*,\s*(\-?\d+(?:\.\d+)?)%\s*,\s*([01]|[01]?\.\d+)\)/)) { - hsl = m.slice(1, 4); - hsl[1] *= 0.01; - hsl[2] *= 0.01; - rgb = hsl2rgb(hsl); - rgb[3] = +m[4]; - } - return rgb; - }; - - hex2rgb = function(hex) { - var a, b, g, r, rgb, u; - - if (hex.match(/^#?([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$/)) { - if (hex.length === 4 || hex.length === 7) { - hex = hex.substr(1); - } - if (hex.length === 3) { - hex = hex.split(""); - hex = hex[0] + hex[0] + hex[1] + hex[1] + hex[2] + hex[2]; - } - u = parseInt(hex, 16); - r = u >> 16; - g = u >> 8 & 0xFF; - b = u & 0xFF; - return [r, g, b, 1]; - } - if (hex.match(/^#?([A-Fa-f0-9]{8})$/)) { - if (hex.length === 9) { - hex = hex.substr(1); - } - u = parseInt(hex, 16); - r = u >> 24 & 0xFF; - g = u >> 16 & 0xFF; - b = u >> 8 & 0xFF; - a = u & 0xFF; - return [r, g, b, a]; - } - if (rgb = css2rgb(hex)) { - return rgb; - } - throw "unknown color: " + hex; - }; - - hsi2rgb = function(h, s, i) { - /* - borrowed from here: - http://hummer.stanford.edu/museinfo/doc/examples/humdrum/keyscape2/hsi2rgb.cpp - */ - - var b, g, r, _ref; - - _ref = unpack(arguments), h = _ref[0], s = _ref[1], i = _ref[2]; - h /= 360; - if (h < 1 / 3) { - b = (1 - s) / 3; - r = (1 + s * cos(TWOPI * h) / cos(PITHIRD - TWOPI * h)) / 3; - g = 1 - (b + r); - } else if (h < 2 / 3) { - h -= 1 / 3; - r = (1 - s) / 3; - g = (1 + s * cos(TWOPI * h) / cos(PITHIRD - TWOPI * h)) / 3; - b = 1 - (r + g); - } else { - h -= 2 / 3; - g = (1 - s) / 3; - b = (1 + s * cos(TWOPI * h) / cos(PITHIRD - TWOPI * h)) / 3; - r = 1 - (g + b); - } - r = limit(i * r * 3); - g = limit(i * g * 3); - b = limit(i * b * 3); - return [r * 255, g * 255, b * 255]; - }; - - hsl2rgb = function() { - var b, c, g, h, i, l, r, s, t1, t2, t3, _i, _ref, _ref1; - - _ref = unpack(arguments), h = _ref[0], s = _ref[1], l = _ref[2]; - if (s === 0) { - r = g = b = l * 255; - } else { - t3 = [0, 0, 0]; - c = [0, 0, 0]; - t2 = l < 0.5 ? l * (1 + s) : l + s - l * s; - t1 = 2 * l - t2; - h /= 360; - t3[0] = h + 1 / 3; - t3[1] = h; - t3[2] = h - 1 / 3; - for (i = _i = 0; _i <= 2; i = ++_i) { - if (t3[i] < 0) { - t3[i] += 1; - } - if (t3[i] > 1) { - t3[i] -= 1; - } - if (6 * t3[i] < 1) { - c[i] = t1 + (t2 - t1) * 6 * t3[i]; - } else if (2 * t3[i] < 1) { - c[i] = t2; - } else if (3 * t3[i] < 2) { - c[i] = t1 + (t2 - t1) * ((2 / 3) - t3[i]) * 6; - } else { - c[i] = t1; - } - } - _ref1 = [Math.round(c[0] * 255), Math.round(c[1] * 255), Math.round(c[2] * 255)], r = _ref1[0], g = _ref1[1], b = _ref1[2]; - } - return [r, g, b]; - }; - - hsv2rgb = function() { - var b, f, g, h, i, p, q, r, s, t, v, _ref, _ref1, _ref2, _ref3, _ref4, _ref5, _ref6; - - _ref = unpack(arguments), h = _ref[0], s = _ref[1], v = _ref[2]; - v *= 255; - if (s === 0) { - r = g = b = v; - } else { - if (h === 360) { - h = 0; - } - if (h > 360) { - h -= 360; - } - if (h < 0) { - h += 360; - } - h /= 60; - i = Math.floor(h); - f = h - i; - p = v * (1 - s); - q = v * (1 - s * f); - t = v * (1 - s * (1 - f)); - switch (i) { - case 0: - _ref1 = [v, t, p], r = _ref1[0], g = _ref1[1], b = _ref1[2]; - break; - case 1: - _ref2 = [q, v, p], r = _ref2[0], g = _ref2[1], b = _ref2[2]; - break; - case 2: - _ref3 = [p, v, t], r = _ref3[0], g = _ref3[1], b = _ref3[2]; - break; - case 3: - _ref4 = [p, q, v], r = _ref4[0], g = _ref4[1], b = _ref4[2]; - break; - case 4: - _ref5 = [t, p, v], r = _ref5[0], g = _ref5[1], b = _ref5[2]; - break; - case 5: - _ref6 = [v, p, q], r = _ref6[0], g = _ref6[1], b = _ref6[2]; - } - } - r = Math.round(r); - g = Math.round(g); - b = Math.round(b); - return [r, g, b]; - }; - - K = 18; - - X = 0.950470; - - Y = 1; - - Z = 1.088830; - - lab2lch = function() { - var a, b, c, h, l, _ref; - - _ref = unpack(arguments), l = _ref[0], a = _ref[1], b = _ref[2]; - c = Math.sqrt(a * a + b * b); - h = Math.atan2(b, a) / Math.PI * 180; - return [l, c, h]; - }; - - lab2rgb = function(l, a, b) { - /* - adapted to match d3 implementation - */ - - var g, r, x, y, z, _ref, _ref1; - - if (l !== void 0 && l.length === 3) { - _ref = l, l = _ref[0], a = _ref[1], b = _ref[2]; - } - if (l !== void 0 && l.length === 3) { - _ref1 = l, l = _ref1[0], a = _ref1[1], b = _ref1[2]; - } - y = (l + 16) / 116; - x = y + a / 500; - z = y - b / 200; - x = lab_xyz(x) * X; - y = lab_xyz(y) * Y; - z = lab_xyz(z) * Z; - r = xyz_rgb(3.2404542 * x - 1.5371385 * y - 0.4985314 * z); - g = xyz_rgb(-0.9692660 * x + 1.8760108 * y + 0.0415560 * z); - b = xyz_rgb(0.0556434 * x - 0.2040259 * y + 1.0572252 * z); - return [limit(r, 0, 255), limit(g, 0, 255), limit(b, 0, 255), 1]; - }; - - lab_xyz = function(x) { - if (x > 0.206893034) { - return x * x * x; - } else { - return (x - 4 / 29) / 7.787037; - } - }; - - xyz_rgb = function(r) { - return Math.round(255 * (r <= 0.00304 ? 12.92 * r : 1.055 * Math.pow(r, 1 / 2.4) - 0.055)); - }; - - lch2lab = function() { - /* - Convert from a qualitative parameter h and a quantitative parameter l to a 24-bit pixel. These formulas were invented by David Dalrymple to obtain maximum contrast without going out of gamut if the parameters are in the range 0-1. - A saturation multiplier was added by Gregor Aisch - */ - - var c, h, l, _ref; - - _ref = unpack(arguments), l = _ref[0], c = _ref[1], h = _ref[2]; - h = h * Math.PI / 180; - return [l, Math.cos(h) * c, Math.sin(h) * c]; - }; - - lch2rgb = function(l, c, h) { - var L, a, b, g, r, _ref, _ref1; - - _ref = lch2lab(l, c, h), L = _ref[0], a = _ref[1], b = _ref[2]; - _ref1 = lab2rgb(L, a, b), r = _ref1[0], g = _ref1[1], b = _ref1[2]; - return [limit(r, 0, 255), limit(g, 0, 255), limit(b, 0, 255)]; - }; - - luminance = function(r, g, b) { - var _ref; - - _ref = unpack(arguments), r = _ref[0], g = _ref[1], b = _ref[2]; - r = luminance_x(r); - g = luminance_x(g); - b = luminance_x(b); - return 0.2126 * r + 0.7152 * g + 0.0722 * b; - }; - - luminance_x = function(x) { - x /= 255; - if (x <= 0.03928) { - return x / 12.92; - } else { - return Math.pow((x + 0.055) / 1.055, 2.4); - } - }; - - rgb2hex = function() { - var b, g, r, str, u, _ref; - - _ref = unpack(arguments), r = _ref[0], g = _ref[1], b = _ref[2]; - u = r << 16 | g << 8 | b; - str = "000000" + u.toString(16); - return "#" + str.substr(str.length - 6); - }; - - rgb2hsi = function() { - /* - borrowed from here: - http://hummer.stanford.edu/museinfo/doc/examples/humdrum/keyscape2/rgb2hsi.cpp - */ - - var TWOPI, b, g, h, i, min, r, s, _ref; - - _ref = unpack(arguments), r = _ref[0], g = _ref[1], b = _ref[2]; - TWOPI = Math.PI * 2; - r /= 255; - g /= 255; - b /= 255; - min = Math.min(r, g, b); - i = (r + g + b) / 3; - s = 1 - min / i; - if (s === 0) { - h = 0; - } else { - h = ((r - g) + (r - b)) / 2; - h /= Math.sqrt((r - g) * (r - g) + (r - b) * (g - b)); - h = Math.acos(h); - if (b > g) { - h = TWOPI - h; - } - h /= TWOPI; - } - return [h * 360, s, i]; - }; - - rgb2hsl = function(r, g, b) { - var h, l, max, min, s, _ref; - - if (r !== void 0 && r.length >= 3) { - _ref = r, r = _ref[0], g = _ref[1], b = _ref[2]; - } - r /= 255; - g /= 255; - b /= 255; - min = Math.min(r, g, b); - max = Math.max(r, g, b); - l = (max + min) / 2; - if (max === min) { - s = 0; - h = Number.NaN; - } else { - s = l < 0.5 ? (max - min) / (max + min) : (max - min) / (2 - max - min); - } - if (r === max) { - h = (g - b) / (max - min); - } else if (g === max) { - h = 2 + (b - r) / (max - min); - } else if (b === max) { - h = 4 + (r - g) / (max - min); - } - h *= 60; - if (h < 0) { - h += 360; - } - return [h, s, l]; - }; - - rgb2hsv = function() { - var b, delta, g, h, max, min, r, s, v, _ref; - - _ref = unpack(arguments), r = _ref[0], g = _ref[1], b = _ref[2]; - min = Math.min(r, g, b); - max = Math.max(r, g, b); - delta = max - min; - v = max / 255.0; - if (max === 0) { - h = Number.NaN; - s = 0; - } else { - s = delta / max; - if (r === max) { - h = (g - b) / delta; - } - if (g === max) { - h = 2 + (b - r) / delta; - } - if (b === max) { - h = 4 + (r - g) / delta; - } - h *= 60; - if (h < 0) { - h += 360; - } - } - return [h, s, v]; - }; - - rgb2lab = function() { - var b, g, r, x, y, z, _ref; - - _ref = unpack(arguments), r = _ref[0], g = _ref[1], b = _ref[2]; - r = rgb_xyz(r); - g = rgb_xyz(g); - b = rgb_xyz(b); - x = xyz_lab((0.4124564 * r + 0.3575761 * g + 0.1804375 * b) / X); - y = xyz_lab((0.2126729 * r + 0.7151522 * g + 0.0721750 * b) / Y); - z = xyz_lab((0.0193339 * r + 0.1191920 * g + 0.9503041 * b) / Z); - return [116 * y - 16, 500 * (x - y), 200 * (y - z)]; - }; - - rgb_xyz = function(r) { - if ((r /= 255) <= 0.04045) { - return r / 12.92; - } else { - return Math.pow((r + 0.055) / 1.055, 2.4); - } - }; - - xyz_lab = function(x) { - if (x > 0.008856) { - return Math.pow(x, 1 / 3); - } else { - return 7.787037 * x + 4 / 29; - } - }; - - rgb2lch = function() { - var a, b, g, l, r, _ref, _ref1; - - _ref = unpack(arguments), r = _ref[0], g = _ref[1], b = _ref[2]; - _ref1 = rgb2lab(r, g, b), l = _ref1[0], a = _ref1[1], b = _ref1[2]; - return lab2lch(l, a, b); - }; - - /* - chroma.js - - Copyright (c) 2011-2013, Gregor Aisch - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - * Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. - - * Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - - * The name Gregor Aisch may not be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - DISCLAIMED. IN NO EVENT SHALL GREGOR AISCH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - - @source: https://github.com/gka/chroma.js - */ - - - chroma.scale = function(colors, positions) { - var classifyValue, f, getClass, getColor, resetCache, setColors, setDomain, tmap, _colorCache, _colors, _correctLightness, _domain, _fixed, _max, _min, _mode, _nacol, _numClasses, _out, _pos, _spread; - - _mode = 'rgb'; - _nacol = chroma('#ccc'); - _spread = 0; - _fixed = false; - _domain = [0, 1]; - _colors = []; - _out = false; - _pos = []; - _min = 0; - _max = 1; - _correctLightness = false; - _numClasses = 0; - _colorCache = {}; - setColors = function(colors, positions) { - var c, col, _i, _j, _ref, _ref1, _ref2; - - if (colors == null) { - colors = ['#ddd', '#222']; - } - if ((colors != null) && type(colors) === 'string' && (((_ref = chroma.brewer) != null ? _ref[colors] : void 0) != null)) { - colors = chroma.brewer[colors]; - } - if (type(colors) === 'array') { - colors = colors.slice(0); - for (c = _i = 0, _ref1 = colors.length - 1; 0 <= _ref1 ? _i <= _ref1 : _i >= _ref1; c = 0 <= _ref1 ? ++_i : --_i) { - col = colors[c]; - if (type(col) === "string") { - colors[c] = chroma(col); - } - } - if (positions != null) { - _pos = positions; - } else { - _pos = []; - for (c = _j = 0, _ref2 = colors.length - 1; 0 <= _ref2 ? _j <= _ref2 : _j >= _ref2; c = 0 <= _ref2 ? ++_j : --_j) { - _pos.push(c / (colors.length - 1)); - } - } - } - resetCache(); - return _colors = colors; - }; - setDomain = function(domain) { - if (domain == null) { - domain = []; - } - /* - # use this if you want to display a limited number of data classes - # possible methods are "equalinterval", "quantiles", "custom" - */ - - _domain = domain; - _min = domain[0]; - _max = domain[domain.length - 1]; - resetCache(); - if (domain.length === 2) { - return _numClasses = 0; - } else { - return _numClasses = domain.length - 1; - } - }; - getClass = function(value) { - var i, n; - - if (_domain != null) { - n = _domain.length - 1; - i = 0; - while (i < n && value >= _domain[i]) { - i++; - } - return i - 1; - } - return 0; - }; - tmap = function(t) { - return t; - }; - classifyValue = function(value) { - var i, maxc, minc, n, val; - - val = value; - if (_domain.length > 2) { - n = _domain.length - 1; - i = getClass(value); - minc = _domain[0] + (_domain[1] - _domain[0]) * (0 + _spread * 0.5); - maxc = _domain[n - 1] + (_domain[n] - _domain[n - 1]) * (1 - _spread * 0.5); - val = _min + ((_domain[i] + (_domain[i + 1] - _domain[i]) * 0.5 - minc) / (maxc - minc)) * (_max - _min); - } - return val; - }; - getColor = function(val, bypassMap) { - var c, col, f0, i, k, p, t, _i, _ref; - - if (bypassMap == null) { - bypassMap = false; - } - if (isNaN(val)) { - return _nacol; - } - if (!bypassMap) { - if (_domain.length > 2) { - c = getClass(val); - t = c / (_numClasses - 1); - } else { - t = f0 = (val - _min) / (_max - _min); - t = Math.min(1, Math.max(0, t)); - } - } else { - t = val; - } - if (!bypassMap) { - t = tmap(t); - } - k = Math.floor(t * 10000); - if (_colorCache[k]) { - col = _colorCache[k]; - } else { - if (type(_colors) === 'array') { - for (i = _i = 0, _ref = _pos.length - 1; 0 <= _ref ? _i <= _ref : _i >= _ref; i = 0 <= _ref ? ++_i : --_i) { - p = _pos[i]; - if (t <= p) { - col = _colors[i]; - break; - } - if (t >= p && i === _pos.length - 1) { - col = _colors[i]; - break; - } - if (t > p && t < _pos[i + 1]) { - t = (t - p) / (_pos[i + 1] - p); - col = chroma.interpolate(_colors[i], _colors[i + 1], t, _mode); - break; - } - } - } else if (type(_colors) === 'function') { - col = _colors(t); - } - _colorCache[k] = col; - } - return col; - }; - resetCache = function() { - return _colorCache = {}; - }; - setColors(colors, positions); - f = function(v) { - var c; - - c = getColor(v); - if (_out && c[_out]) { - return c[_out](); - } else { - return c; - } - }; - f.domain = function(domain, classes, mode, key) { - var d; - - if (mode == null) { - mode = 'e'; - } - if (!arguments.length) { - return _domain; - } - if (classes != null) { - d = chroma.analyze(domain, key); - if (classes === 0) { - domain = [d.min, d.max]; - } else { - domain = chroma.limits(d, mode, classes); - } - } - setDomain(domain); - return f; - }; - f.mode = function(_m) { - if (!arguments.length) { - return _mode; - } - _mode = _m; - resetCache(); - return f; - }; - f.range = function(colors, _pos) { - setColors(colors, _pos); - return f; - }; - f.out = function(_o) { - _out = _o; - return f; - }; - f.spread = function(val) { - if (!arguments.length) { - return _spread; - } - _spread = val; - return f; - }; - f.correctLightness = function(v) { - if (!arguments.length) { - return _correctLightness; - } - _correctLightness = v; - resetCache(); - if (_correctLightness) { - tmap = function(t) { - var L0, L1, L_actual, L_diff, L_ideal, max_iter, pol, t0, t1; - - L0 = getColor(0, true).lab()[0]; - L1 = getColor(1, true).lab()[0]; - pol = L0 > L1; - L_actual = getColor(t, true).lab()[0]; - L_ideal = L0 + (L1 - L0) * t; - L_diff = L_actual - L_ideal; - t0 = 0; - t1 = 1; - max_iter = 20; - while (Math.abs(L_diff) > 1e-2 && max_iter-- > 0) { - (function() { - if (pol) { - L_diff *= -1; - } - if (L_diff < 0) { - t0 = t; - t += (t1 - t) * 0.5; - } else { - t1 = t; - t += (t0 - t) * 0.5; - } - L_actual = getColor(t, true).lab()[0]; - return L_diff = L_actual - L_ideal; - })(); - } - return t; - }; - } else { - tmap = function(t) { - return t; - }; - } - return f; - }; - f.colors = function(out) { - var i, samples, _i, _j, _len, _ref; - - if (out == null) { - out = 'hex'; - } - colors = []; - samples = []; - if (_domain.length > 2) { - for (i = _i = 1, _ref = _domain.length; 1 <= _ref ? _i < _ref : _i > _ref; i = 1 <= _ref ? ++_i : --_i) { - samples.push((_domain[i - 1] + _domain[i]) * 0.5); - } - } else { - samples = _domain; - } - for (_j = 0, _len = samples.length; _j < _len; _j++) { - i = samples[_j]; - colors.push(f(i)[out]()); - } - return colors; - }; - return f; - }; - - if ((_ref = chroma.scales) == null) { - chroma.scales = {}; - } - - chroma.scales.cool = function() { - return chroma.scale([chroma.hsl(180, 1, .9), chroma.hsl(250, .7, .4)]); - }; - - chroma.scales.hot = function() { - return chroma.scale(['#000', '#f00', '#ff0', '#fff'], [0, .25, .75, 1]).mode('rgb'); - }; - - /* - chroma.js - - Copyright (c) 2011-2013, Gregor Aisch - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - * Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. - - * Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - - * The name Gregor Aisch may not be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - DISCLAIMED. IN NO EVENT SHALL GREGOR AISCH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - - @source: https://github.com/gka/chroma.js - */ - - - chroma.analyze = function(data, key, filter) { - var add, k, r, val, visit, _i, _len; - - r = { - min: Number.MAX_VALUE, - max: Number.MAX_VALUE * -1, - sum: 0, - values: [], - count: 0 - }; - if (filter == null) { - filter = function() { - return true; - }; - } - add = function(val) { - if ((val != null) && !isNaN(val)) { - r.values.push(val); - r.sum += val; - if (val < r.min) { - r.min = val; - } - if (val > r.max) { - r.max = val; - } - r.count += 1; - } - }; - visit = function(val, k) { - if (filter(val, k)) { - if ((key != null) && type(key) === 'function') { - return add(key(val)); - } else if ((key != null) && type(key) === 'string' || type(key) === 'number') { - return add(val[key]); - } else { - return add(val); - } - } - }; - if (type(data) === 'array') { - for (_i = 0, _len = data.length; _i < _len; _i++) { - val = data[_i]; - visit(val); - } - } else { - for (k in data) { - val = data[k]; - visit(val, k); - } - } - r.domain = [r.min, r.max]; - r.limits = function(mode, num) { - return chroma.limits(r, mode, num); - }; - return r; - }; - - chroma.limits = function(data, mode, num) { - var assignments, best, centroids, cluster, clusterSizes, dist, i, j, kClusters, limits, max, max_log, min, min_log, mindist, n, nb_iters, newCentroids, p, pb, pr, repeat, sum, tmpKMeansBreaks, value, values, _i, _j, _k, _l, _m, _n, _o, _p, _q, _r, _ref1, _ref10, _ref11, _ref12, _ref13, _ref14, _ref15, _ref2, _ref3, _ref4, _ref5, _ref6, _ref7, _ref8, _ref9, _s, _t, _u, _v, _w; - - if (mode == null) { - mode = 'equal'; - } - if (num == null) { - num = 7; - } - if (type(data) === 'array') { - data = chroma.analyze(data); - } - min = data.min; - max = data.max; - sum = data.sum; - values = data.values.sort(function(a, b) { - return a - b; - }); - limits = []; - if (mode.substr(0, 1) === 'c') { - limits.push(min); - limits.push(max); - } - if (mode.substr(0, 1) === 'e') { - limits.push(min); - for (i = _i = 1, _ref1 = num - 1; 1 <= _ref1 ? _i <= _ref1 : _i >= _ref1; i = 1 <= _ref1 ? ++_i : --_i) { - limits.push(min + (i / num) * (max - min)); - } - limits.push(max); - } else if (mode.substr(0, 1) === 'l') { - if (min <= 0) { - throw 'Logarithmic scales are only possible for values > 0'; - } - min_log = Math.LOG10E * Math.log(min); - max_log = Math.LOG10E * Math.log(max); - limits.push(min); - for (i = _j = 1, _ref2 = num - 1; 1 <= _ref2 ? _j <= _ref2 : _j >= _ref2; i = 1 <= _ref2 ? ++_j : --_j) { - limits.push(Math.pow(10, min_log + (i / num) * (max_log - min_log))); - } - limits.push(max); - } else if (mode.substr(0, 1) === 'q') { - limits.push(min); - for (i = _k = 1, _ref3 = num - 1; 1 <= _ref3 ? _k <= _ref3 : _k >= _ref3; i = 1 <= _ref3 ? ++_k : --_k) { - p = values.length * i / num; - pb = Math.floor(p); - if (pb === p) { - limits.push(values[pb]); - } else { - pr = p - pb; - limits.push(values[pb] * pr + values[pb + 1] * (1 - pr)); - } - } - limits.push(max); - } else if (mode.substr(0, 1) === 'k') { - /* - implementation based on - http://code.google.com/p/figue/source/browse/trunk/figue.js#336 - simplified for 1-d input values - */ - - n = values.length; - assignments = new Array(n); - clusterSizes = new Array(num); - repeat = true; - nb_iters = 0; - centroids = null; - centroids = []; - centroids.push(min); - for (i = _l = 1, _ref4 = num - 1; 1 <= _ref4 ? _l <= _ref4 : _l >= _ref4; i = 1 <= _ref4 ? ++_l : --_l) { - centroids.push(min + (i / num) * (max - min)); - } - centroids.push(max); - while (repeat) { - for (j = _m = 0, _ref5 = num - 1; 0 <= _ref5 ? _m <= _ref5 : _m >= _ref5; j = 0 <= _ref5 ? ++_m : --_m) { - clusterSizes[j] = 0; - } - for (i = _n = 0, _ref6 = n - 1; 0 <= _ref6 ? _n <= _ref6 : _n >= _ref6; i = 0 <= _ref6 ? ++_n : --_n) { - value = values[i]; - mindist = Number.MAX_VALUE; - for (j = _o = 0, _ref7 = num - 1; 0 <= _ref7 ? _o <= _ref7 : _o >= _ref7; j = 0 <= _ref7 ? ++_o : --_o) { - dist = Math.abs(centroids[j] - value); - if (dist < mindist) { - mindist = dist; - best = j; - } - } - clusterSizes[best]++; - assignments[i] = best; - } - newCentroids = new Array(num); - for (j = _p = 0, _ref8 = num - 1; 0 <= _ref8 ? _p <= _ref8 : _p >= _ref8; j = 0 <= _ref8 ? ++_p : --_p) { - newCentroids[j] = null; - } - for (i = _q = 0, _ref9 = n - 1; 0 <= _ref9 ? _q <= _ref9 : _q >= _ref9; i = 0 <= _ref9 ? ++_q : --_q) { - cluster = assignments[i]; - if (newCentroids[cluster] === null) { - newCentroids[cluster] = values[i]; - } else { - newCentroids[cluster] += values[i]; - } - } - for (j = _r = 0, _ref10 = num - 1; 0 <= _ref10 ? _r <= _ref10 : _r >= _ref10; j = 0 <= _ref10 ? ++_r : --_r) { - newCentroids[j] *= 1 / clusterSizes[j]; - } - repeat = false; - for (j = _s = 0, _ref11 = num - 1; 0 <= _ref11 ? _s <= _ref11 : _s >= _ref11; j = 0 <= _ref11 ? ++_s : --_s) { - if (newCentroids[j] !== centroids[i]) { - repeat = true; - break; - } - } - centroids = newCentroids; - nb_iters++; - if (nb_iters > 200) { - repeat = false; - } - } - kClusters = {}; - for (j = _t = 0, _ref12 = num - 1; 0 <= _ref12 ? _t <= _ref12 : _t >= _ref12; j = 0 <= _ref12 ? ++_t : --_t) { - kClusters[j] = []; - } - for (i = _u = 0, _ref13 = n - 1; 0 <= _ref13 ? _u <= _ref13 : _u >= _ref13; i = 0 <= _ref13 ? ++_u : --_u) { - cluster = assignments[i]; - kClusters[cluster].push(values[i]); - } - tmpKMeansBreaks = []; - for (j = _v = 0, _ref14 = num - 1; 0 <= _ref14 ? _v <= _ref14 : _v >= _ref14; j = 0 <= _ref14 ? ++_v : --_v) { - tmpKMeansBreaks.push(kClusters[j][0]); - tmpKMeansBreaks.push(kClusters[j][kClusters[j].length - 1]); - } - tmpKMeansBreaks = tmpKMeansBreaks.sort(function(a, b) { - return a - b; - }); - limits.push(tmpKMeansBreaks[0]); - for (i = _w = 1, _ref15 = tmpKMeansBreaks.length - 1; _w <= _ref15; i = _w += 2) { - if (!isNaN(tmpKMeansBreaks[i])) { - limits.push(tmpKMeansBreaks[i]); - } - } - } - return limits; - }; - - /** - ColorBrewer colors for chroma.js - - Copyright (c) 2002 Cynthia Brewer, Mark Harrower, and The - Pennsylvania State University. - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software distributed - under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR - CONDITIONS OF ANY KIND, either express or implied. See the License for the - specific language governing permissions and limitations under the License. - - @preserve - */ - - - chroma.brewer = brewer = { - OrRd: ['#fff7ec', '#fee8c8', '#fdd49e', '#fdbb84', '#fc8d59', '#ef6548', '#d7301f', '#b30000', '#7f0000'], - PuBu: ['#fff7fb', '#ece7f2', '#d0d1e6', '#a6bddb', '#74a9cf', '#3690c0', '#0570b0', '#045a8d', '#023858'], - BuPu: ['#f7fcfd', '#e0ecf4', '#bfd3e6', '#9ebcda', '#8c96c6', '#8c6bb1', '#88419d', '#810f7c', '#4d004b'], - Oranges: ['#fff5eb', '#fee6ce', '#fdd0a2', '#fdae6b', '#fd8d3c', '#f16913', '#d94801', '#a63603', '#7f2704'], - BuGn: ['#f7fcfd', '#e5f5f9', '#ccece6', '#99d8c9', '#66c2a4', '#41ae76', '#238b45', '#006d2c', '#00441b'], - YlOrBr: ['#ffffe5', '#fff7bc', '#fee391', '#fec44f', '#fe9929', '#ec7014', '#cc4c02', '#993404', '#662506'], - YlGn: ['#ffffe5', '#f7fcb9', '#d9f0a3', '#addd8e', '#78c679', '#41ab5d', '#238443', '#006837', '#004529'], - Reds: ['#fff5f0', '#fee0d2', '#fcbba1', '#fc9272', '#fb6a4a', '#ef3b2c', '#cb181d', '#a50f15', '#67000d'], - RdPu: ['#fff7f3', '#fde0dd', '#fcc5c0', '#fa9fb5', '#f768a1', '#dd3497', '#ae017e', '#7a0177', '#49006a'], - Greens: ['#f7fcf5', '#e5f5e0', '#c7e9c0', '#a1d99b', '#74c476', '#41ab5d', '#238b45', '#006d2c', '#00441b'], - YlGnBu: ['#ffffd9', '#edf8b1', '#c7e9b4', '#7fcdbb', '#41b6c4', '#1d91c0', '#225ea8', '#253494', '#081d58'], - Purples: ['#fcfbfd', '#efedf5', '#dadaeb', '#bcbddc', '#9e9ac8', '#807dba', '#6a51a3', '#54278f', '#3f007d'], - GnBu: ['#f7fcf0', '#e0f3db', '#ccebc5', '#a8ddb5', '#7bccc4', '#4eb3d3', '#2b8cbe', '#0868ac', '#084081'], - Greys: ['#ffffff', '#f0f0f0', '#d9d9d9', '#bdbdbd', '#969696', '#737373', '#525252', '#252525', '#000000'], - YlOrRd: ['#ffffcc', '#ffeda0', '#fed976', '#feb24c', '#fd8d3c', '#fc4e2a', '#e31a1c', '#bd0026', '#800026'], - PuRd: ['#f7f4f9', '#e7e1ef', '#d4b9da', '#c994c7', '#df65b0', '#e7298a', '#ce1256', '#980043', '#67001f'], - Blues: ['#f7fbff', '#deebf7', '#c6dbef', '#9ecae1', '#6baed6', '#4292c6', '#2171b5', '#08519c', '#08306b'], - PuBuGn: ['#fff7fb', '#ece2f0', '#d0d1e6', '#a6bddb', '#67a9cf', '#3690c0', '#02818a', '#016c59', '#014636'], - Spectral: ['#9e0142', '#d53e4f', '#f46d43', '#fdae61', '#fee08b', '#ffffbf', '#e6f598', '#abdda4', '#66c2a5', '#3288bd', '#5e4fa2'], - RdYlGn: ['#a50026', '#d73027', '#f46d43', '#fdae61', '#fee08b', '#ffffbf', '#d9ef8b', '#a6d96a', '#66bd63', '#1a9850', '#006837'], - RdBu: ['#67001f', '#b2182b', '#d6604d', '#f4a582', '#fddbc7', '#f7f7f7', '#d1e5f0', '#92c5de', '#4393c3', '#2166ac', '#053061'], - PiYG: ['#8e0152', '#c51b7d', '#de77ae', '#f1b6da', '#fde0ef', '#f7f7f7', '#e6f5d0', '#b8e186', '#7fbc41', '#4d9221', '#276419'], - PRGn: ['#40004b', '#762a83', '#9970ab', '#c2a5cf', '#e7d4e8', '#f7f7f7', '#d9f0d3', '#a6dba0', '#5aae61', '#1b7837', '#00441b'], - RdYlBu: ['#a50026', '#d73027', '#f46d43', '#fdae61', '#fee090', '#ffffbf', '#e0f3f8', '#abd9e9', '#74add1', '#4575b4', '#313695'], - BrBG: ['#543005', '#8c510a', '#bf812d', '#dfc27d', '#f6e8c3', '#f5f5f5', '#c7eae5', '#80cdc1', '#35978f', '#01665e', '#003c30'], - RdGy: ['#67001f', '#b2182b', '#d6604d', '#f4a582', '#fddbc7', '#ffffff', '#e0e0e0', '#bababa', '#878787', '#4d4d4d', '#1a1a1a'], - PuOr: ['#7f3b08', '#b35806', '#e08214', '#fdb863', '#fee0b6', '#f7f7f7', '#d8daeb', '#b2abd2', '#8073ac', '#542788', '#2d004b'], - Set2: ['#66c2a5', '#fc8d62', '#8da0cb', '#e78ac3', '#a6d854', '#ffd92f', '#e5c494', '#b3b3b3'], - Accent: ['#7fc97f', '#beaed4', '#fdc086', '#ffff99', '#386cb0', '#f0027f', '#bf5b17', '#666666'], - Set1: ['#e41a1c', '#377eb8', '#4daf4a', '#984ea3', '#ff7f00', '#ffff33', '#a65628', '#f781bf', '#999999'], - Set3: ['#8dd3c7', '#ffffb3', '#bebada', '#fb8072', '#80b1d3', '#fdb462', '#b3de69', '#fccde5', '#d9d9d9', '#bc80bd', '#ccebc5', '#ffed6f'], - Dark2: ['#1b9e77', '#d95f02', '#7570b3', '#e7298a', '#66a61e', '#e6ab02', '#a6761d', '#666666'], - Paired: ['#a6cee3', '#1f78b4', '#b2df8a', '#33a02c', '#fb9a99', '#e31a1c', '#fdbf6f', '#ff7f00', '#cab2d6', '#6a3d9a', '#ffff99', '#b15928'], - Pastel2: ['#b3e2cd', '#fdcdac', '#cbd5e8', '#f4cae4', '#e6f5c9', '#fff2ae', '#f1e2cc', '#cccccc'], - Pastel1: ['#fbb4ae', '#b3cde3', '#ccebc5', '#decbe4', '#fed9a6', '#ffffcc', '#e5d8bd', '#fddaec', '#f2f2f2'] - }; - - /** - X11 color names - - http://www.w3.org/TR/css3-color/#svg-color - */ - - - chroma.colors = colors = { - indigo: "#4b0082", - gold: "#ffd700", - hotpink: "#ff69b4", - firebrick: "#b22222", - indianred: "#cd5c5c", - yellow: "#ffff00", - mistyrose: "#ffe4e1", - darkolivegreen: "#556b2f", - olive: "#808000", - darkseagreen: "#8fbc8f", - pink: "#ffc0cb", - tomato: "#ff6347", - lightcoral: "#f08080", - orangered: "#ff4500", - navajowhite: "#ffdead", - lime: "#00ff00", - palegreen: "#98fb98", - darkslategrey: "#2f4f4f", - greenyellow: "#adff2f", - burlywood: "#deb887", - seashell: "#fff5ee", - mediumspringgreen: "#00fa9a", - fuchsia: "#ff00ff", - papayawhip: "#ffefd5", - blanchedalmond: "#ffebcd", - chartreuse: "#7fff00", - dimgray: "#696969", - black: "#000000", - peachpuff: "#ffdab9", - springgreen: "#00ff7f", - aquamarine: "#7fffd4", - white: "#ffffff", - orange: "#ffa500", - lightsalmon: "#ffa07a", - darkslategray: "#2f4f4f", - brown: "#a52a2a", - ivory: "#fffff0", - dodgerblue: "#1e90ff", - peru: "#cd853f", - lawngreen: "#7cfc00", - chocolate: "#d2691e", - crimson: "#dc143c", - forestgreen: "#228b22", - darkgrey: "#a9a9a9", - lightseagreen: "#20b2aa", - cyan: "#00ffff", - mintcream: "#f5fffa", - silver: "#c0c0c0", - antiquewhite: "#faebd7", - mediumorchid: "#ba55d3", - skyblue: "#87ceeb", - gray: "#808080", - darkturquoise: "#00ced1", - goldenrod: "#daa520", - darkgreen: "#006400", - floralwhite: "#fffaf0", - darkviolet: "#9400d3", - darkgray: "#a9a9a9", - moccasin: "#ffe4b5", - saddlebrown: "#8b4513", - grey: "#808080", - darkslateblue: "#483d8b", - lightskyblue: "#87cefa", - lightpink: "#ffb6c1", - mediumvioletred: "#c71585", - slategrey: "#708090", - red: "#ff0000", - deeppink: "#ff1493", - limegreen: "#32cd32", - darkmagenta: "#8b008b", - palegoldenrod: "#eee8aa", - plum: "#dda0dd", - turquoise: "#40e0d0", - lightgrey: "#d3d3d3", - lightgoldenrodyellow: "#fafad2", - darkgoldenrod: "#b8860b", - lavender: "#e6e6fa", - maroon: "#800000", - yellowgreen: "#9acd32", - sandybrown: "#f4a460", - thistle: "#d8bfd8", - violet: "#ee82ee", - navy: "#000080", - magenta: "#ff00ff", - dimgrey: "#696969", - tan: "#d2b48c", - rosybrown: "#bc8f8f", - olivedrab: "#6b8e23", - blue: "#0000ff", - lightblue: "#add8e6", - ghostwhite: "#f8f8ff", - honeydew: "#f0fff0", - cornflowerblue: "#6495ed", - slateblue: "#6a5acd", - linen: "#faf0e6", - darkblue: "#00008b", - powderblue: "#b0e0e6", - seagreen: "#2e8b57", - darkkhaki: "#bdb76b", - snow: "#fffafa", - sienna: "#a0522d", - mediumblue: "#0000cd", - royalblue: "#4169e1", - lightcyan: "#e0ffff", - green: "#008000", - mediumpurple: "#9370db", - midnightblue: "#191970", - cornsilk: "#fff8dc", - paleturquoise: "#afeeee", - bisque: "#ffe4c4", - slategray: "#708090", - darkcyan: "#008b8b", - khaki: "#f0e68c", - wheat: "#f5deb3", - teal: "#008080", - darkorchid: "#9932cc", - deepskyblue: "#00bfff", - salmon: "#fa8072", - darkred: "#8b0000", - steelblue: "#4682b4", - palevioletred: "#db7093", - lightslategray: "#778899", - aliceblue: "#f0f8ff", - lightslategrey: "#778899", - lightgreen: "#90ee90", - orchid: "#da70d6", - gainsboro: "#dcdcdc", - mediumseagreen: "#3cb371", - lightgray: "#d3d3d3", - mediumturquoise: "#48d1cc", - lemonchiffon: "#fffacd", - cadetblue: "#5f9ea0", - lightyellow: "#ffffe0", - lavenderblush: "#fff0f5", - coral: "#ff7f50", - purple: "#800080", - aqua: "#00ffff", - whitesmoke: "#f5f5f5", - mediumslateblue: "#7b68ee", - darkorange: "#ff8c00", - mediumaquamarine: "#66cdaa", - darksalmon: "#e9967a", - beige: "#f5f5dc", - blueviolet: "#8a2be2", - azure: "#f0ffff", - lightsteelblue: "#b0c4de", - oldlace: "#fdf5e6" - }; - - /* - chroma.js - - Copyright (c) 2011-2013, Gregor Aisch - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - * Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. - - * Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - - * The name Gregor Aisch may not be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - DISCLAIMED. IN NO EVENT SHALL GREGOR AISCH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - - @source: https://github.com/gka/chroma.js - */ - - - type = (function() { - /* - for browser-safe type checking+ - ported from jQuery's $.type - */ - - var classToType, name, _i, _len, _ref1; - - classToType = {}; - _ref1 = "Boolean Number String Function Array Date RegExp Undefined Null".split(" "); - for (_i = 0, _len = _ref1.length; _i < _len; _i++) { - name = _ref1[_i]; - classToType["[object " + name + "]"] = name.toLowerCase(); - } - return function(obj) { - var strType; - - strType = Object.prototype.toString.call(obj); - return classToType[strType] || "object"; - }; - })(); - - limit = function(x, min, max) { - if (min == null) { - min = 0; - } - if (max == null) { - max = 1; - } - if (x < min) { - x = min; - } - if (x > max) { - x = max; - } - return x; - }; - - unpack = function(args) { - if (args.length >= 3) { - return args; - } else { - return args[0]; - } - }; - - TWOPI = Math.PI * 2; - - PITHIRD = Math.PI / 3; - - cos = Math.cos; - - /* - interpolates between a set of colors uzing a bezier spline - */ - - - bezier = function(colors) { - var I, I0, I1, c, lab0, lab1, lab2, lab3, _ref1, _ref2, _ref3; - - colors = (function() { - var _i, _len, _results; - - _results = []; - for (_i = 0, _len = colors.length; _i < _len; _i++) { - c = colors[_i]; - _results.push(chroma(c)); - } - return _results; - })(); - if (colors.length === 2) { - _ref1 = (function() { - var _i, _len, _results; - - _results = []; - for (_i = 0, _len = colors.length; _i < _len; _i++) { - c = colors[_i]; - _results.push(c.lab()); - } - return _results; - })(), lab0 = _ref1[0], lab1 = _ref1[1]; - I = function(t) { - var i, lab; - - lab = (function() { - var _i, _results; - - _results = []; - for (i = _i = 0; _i <= 2; i = ++_i) { - _results.push(lab0[i] + t * (lab1[i] - lab0[i])); - } - return _results; - })(); - return chroma.lab.apply(chroma, lab); - }; - } else if (colors.length === 3) { - _ref2 = (function() { - var _i, _len, _results; - - _results = []; - for (_i = 0, _len = colors.length; _i < _len; _i++) { - c = colors[_i]; - _results.push(c.lab()); - } - return _results; - })(), lab0 = _ref2[0], lab1 = _ref2[1], lab2 = _ref2[2]; - I = function(t) { - var i, lab; - - lab = (function() { - var _i, _results; - - _results = []; - for (i = _i = 0; _i <= 2; i = ++_i) { - _results.push((1 - t) * (1 - t) * lab0[i] + 2 * (1 - t) * t * lab1[i] + t * t * lab2[i]); - } - return _results; - })(); - return chroma.lab.apply(chroma, lab); - }; - } else if (colors.length === 4) { - _ref3 = (function() { - var _i, _len, _results; - - _results = []; - for (_i = 0, _len = colors.length; _i < _len; _i++) { - c = colors[_i]; - _results.push(c.lab()); - } - return _results; - })(), lab0 = _ref3[0], lab1 = _ref3[1], lab2 = _ref3[2], lab3 = _ref3[3]; - I = function(t) { - var i, lab; - - lab = (function() { - var _i, _results; - - _results = []; - for (i = _i = 0; _i <= 2; i = ++_i) { - _results.push((1 - t) * (1 - t) * (1 - t) * lab0[i] + 3 * (1 - t) * (1 - t) * t * lab1[i] + 3 * (1 - t) * t * t * lab2[i] + t * t * t * lab3[i]); - } - return _results; - })(); - return chroma.lab.apply(chroma, lab); - }; - } else if (colors.length === 5) { - I0 = bezier(colors.slice(0, 3)); - I1 = bezier(colors.slice(2, 5)); - I = function(t) { - if (t < 0.5) { - return I0(t * 2); - } else { - return I1((t - 0.5) * 2); - } - }; - } - return I; - }; - - chroma.interpolate.bezier = bezier; - -}).call(this); |