/** * chroma.js - JavaScript library for color conversions * * Copyright (c) 2011-2019, 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: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. 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. * * 3. 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. * * ------------------------------------------------------- * * chroma.js includes colors from colorbrewer2.org, which are released under * the following license: * * 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. * * ------------------------------------------------------ * * Named colors are taken from X11 Color Names. * http://www.w3.org/TR/css3-color/#svg-color * * @preserve */ !function(r,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):r.chroma=e()}(this,function(){"use strict";for(var t=function(r,e,t){return void 0===e&&(e=0),void 0===t&&(t=1),r>16,e>>8&255,255&e,1]}if(r.match(fr)){9===r.length&&(r=r.substr(1));var t=parseInt(r,16);return[t>>24&255,t>>16&255,t>>8&255,Math.round((255&t)/255*100)/100]}throw new Error("unknown hex color: "+r)},ur=o.type;A.prototype.hex=function(r){return nr(this._rgb,r)},N.hex=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];return new(Function.prototype.bind.apply(A,[null].concat(r,["hex"])))},b.format.hex=or,b.autodetect.push({p:4,test:function(r){for(var e=[],t=arguments.length-1;0>16,r>>8&255,255&r,1];throw new Error("unknown num color: "+r)},xe=o.type;A.prototype.num=function(){return Me(this._rgb)},N.num=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];return new(Function.prototype.bind.apply(A,[null].concat(r,["num"])))},b.format.num=_e,b.autodetect.push({p:5,test:function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];if(1===r.length&&"number"===xe(r[0])&&0<=r[0]&&r[0]<=16777215)return"num"}});var Ae=o.unpack,Ee=o.type,Pe=Math.round;A.prototype.rgb=function(r){return void 0===r&&(r=!0),!1===r?this._rgb.slice(0,3):this._rgb.slice(0,3).map(Pe)},A.prototype.rgba=function(t){return void 0===t&&(t=!0),this._rgb.slice(0,4).map(function(r,e){return e<3?!1===t?r:Pe(r):r})},N.rgb=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];return new(Function.prototype.bind.apply(A,[null].concat(r,["rgb"])))},b.format.rgb=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];var t=Ae(r,"rgba");return void 0===t[3]&&(t[3]=1),t},b.autodetect.push({p:3,test:function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];if(r=Ae(r,"rgba"),"array"===Ee(r)&&(3===r.length||4===r.length&&"number"==Ee(r[3])&&0<=r[3]&&r[3]<=1))return"rgb"}});var Fe=Math.log,Oe=function(r){var e,t,n,a=r/100;return n=a<66?(e=255,t=-155.25485562709179-.44596950469579133*(t=a-2)+104.49216199393888*Fe(t),a<20?0:.8274096064007395*(n=a-10)-254.76935184120902+115.67994401066147*Fe(n)):(e=351.97690566805693+.114206453784165*(e=a-55)-40.25366309332127*Fe(e),t=325.4494125711974+.07943456536662342*(t=a-50)-28.0852963507957*Fe(t),255),[e,t,n,1]},je=o.unpack,Ge=Math.round,qe=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];for(var t,n=je(r,"rgb"),a=n[0],f=n[2],o=1e3,u=4e4;.4=f/a?u=t:o=t}return Ge(t)};A.prototype.temp=A.prototype.kelvin=A.prototype.temperature=function(){return qe(this._rgb)},N.temp=N.kelvin=N.temperature=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];return new(Function.prototype.bind.apply(A,[null].concat(r,["temp"])))},b.format.temp=b.format.kelvin=b.format.temperature=Oe;var Le=o.type;A.prototype.alpha=function(r,e){return void 0===e&&(e=!1),void 0!==r&&"number"===Le(r)?e?(this._rgb[3]=r,this):new A([this._rgb[0],this._rgb[1],this._rgb[2],r],"rgb"):this._rgb[3]},A.prototype.clipped=function(){return this._rgb._clipped||!1},A.prototype.darken=function(r){void 0===r&&(r=1);var e=this.lab();return e[0]-=qr*r,new A(e,"lab").alpha(this.alpha(),!0)},A.prototype.brighten=function(r){return void 0===r&&(r=1),this.darken(-r)},A.prototype.darker=A.prototype.darken,A.prototype.brighter=A.prototype.brighten,A.prototype.get=function(r){var e=r.split("."),t=e[0],n=e[1],a=this[t]();if(n){var f=t.indexOf(n);if(-1=s[t];)t++;return t-1}(r)/(s.length-2):g!==p?(r-p)/(g-p):1;e||(n=w(n)),1!==y&&(n=tt(n,y)),n=d[0]+n*(1-d[0]-d[1]),n=Math.min(1,Math.max(0,n));var a=Math.floor(1e4*n);if(m&&v[a])t=v[a];else{if("array"===et(b))for(var f=0;ft.max&&(t.max=r),t.count+=1)}),t.domain=[t.min,t.max],t.limits=function(r,e){return Mt(t,r,e)},t},Mt=function(r,e,t){void 0===e&&(e="equal"),void 0===t&&(t=7),"array"==Y(r)&&(r=kt(r));var n=r.min,a=r.max,f=r.values.sort(function(r,e){return r-e});if(1===t)return[n,a];var o=[];if("c"===e.substr(0,1)&&(o.push(n),o.push(a)),"e"===e.substr(0,1)){o.push(n);for(var u=1;u 0");var c=Math.LOG10E*vt(n),i=Math.LOG10E*vt(a);o.push(n);for(var l=1;l