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e=t.oklab(),a=r.oklab();return new b(e[0]+n*(a[0]-e[0]),e[1]+n*(a[1]-e[1]),e[2]+n*(a[2]-e[2]),"oklab")},Object.assign(y,{Color:b,valid:function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];try{return new(Function.prototype.bind.apply(b,[null].concat(t))),!0}catch(t){return!1}},css:ft,hex:pt,hsl:vt,lab:bt,oklab:yt,rgb:Mt,mix:xt,interpolate:xt}),y})); diff --git a/dist/chroma.cjs b/dist/chroma.cjs index 0769b043..5e914159 100644 --- a/dist/chroma.cjs +++ b/dist/chroma.cjs @@ -61,11 +61,14 @@ (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.chroma = factory()); })(this, (function () { 'use strict'; + var min$4 = Math.min; + var max$4 = Math.max; + function limit (x, low, high) { if ( low === void 0 ) low = 0; if ( high === void 0 ) high = 1; - return min$3(max$3(low, x), high); + return min$4(max$4(low, x), high); } function clip_rgb (rgb) { @@ -84,7 +87,7 @@ // ported from jQuery's $.type var classToType = {}; - for (var i$1 = 0, list$1 = [ + for (var i = 0, list = [ 'Boolean', 'Number', 'String', @@ -94,8 +97,8 @@ 'RegExp', 'Undefined', 'Null' - ]; i$1 < list$1.length; i$1 += 1) { - var name = list$1[i$1]; + ]; i < list.length; i += 1) { + var name = list[i]; classToType[("[object " + name + "]")] = name.toLowerCase(); } @@ -3858,12 +3861,21 @@ Pastel1: ['#fbb4ae', '#b3cde3', '#ccebc5', '#decbe4', '#fed9a6', '#ffffcc', '#e5d8bd', '#fddaec', '#f2f2f2'] }; - // add lowercase aliases for case-insensitive matches - for (var i = 0, list = Object.keys(colorbrewer); i < list.length; i += 1) { - var key = list[i]; + var colorbrewerTypes = Object.keys(colorbrewer); + var typeMap = new Map(colorbrewerTypes.map(function (key) { return [key.toLowerCase(), key]; })); - colorbrewer[key.toLowerCase()] = colorbrewer[key]; - } + // use Proxy to allow case-insensitive access to palettes + var colorbrewerProxy = typeof Proxy === 'function' ? new Proxy(colorbrewer, { + get: function get(target, prop) { + var lower = prop.toLowerCase(); + if (typeMap.has(lower)) { + return target[typeMap.get(lower)]; + } + }, + getOwnPropertyNames: function getOwnPropertyNames() { + return Object.getOwnPropertyNames(colorbrewerTypes); + } + }) : colorbrewer; // feel free to comment out anything to rollup // a smaller chroma.js bundle @@ -3873,7 +3885,7 @@ average: average, bezier: bezier$1, blend: blend, - brewer: colorbrewer, + brewer: colorbrewerProxy, Color: Color, colors: w3cx11, contrast: contrast, diff --git a/dist/chroma.min.cjs b/dist/chroma.min.cjs index 4fa5f456..f9397b5e 100644 --- a/dist/chroma.min.cjs +++ b/dist/chroma.min.cjs @@ -55,4 +55,4 @@ * @preserve */ -!function(r,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(r="undefined"!=typeof globalThis?globalThis:r||self).chroma=t()}(this,(function(){"use strict";function r(r,t,n){return void 0===t&&(t=0),void 0===n&&(n=1),l(s(t,r),n)}function t(t){t._clipped=!1,t._unclipped=t.slice(0);for(var 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new(Function.prototype.bind.apply(k,[null].concat(r,["lch"])))},Wr=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];return new(Function.prototype.bind.apply(k,[null].concat(r,["hcl"])))};Object.assign(M,{lch:Sr,hcl:Wr}),w.format.lch=H,w.format.hcl=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];var e=i(r,"hcl").reverse();return H.apply(void 0,e)},["lch","hcl"].forEach((function(r){return w.autodetect.push({p:2,test:function(){for(var t=[],e=arguments.length;e--;)t[e]=arguments[e];if("array"===c(t=i(t,r))&&3===t.length)return r}})}));k.prototype.num=function(){return function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];var e=i(r,"rgb");return(e[0]<<16)+(e[1]<<8)+e[2]}(this._rgb)};var Ir=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];return new(Function.prototype.bind.apply(k,[null].concat(r,["num"])))};Object.assign(M,{num:Ir}),w.format.num=function(r){if("number"==c(r)&&r>=0&&r<=16777215)return[r>>16,r>>8&255,255&r,1];throw new Error("unknown num color: "+r)},w.autodetect.push({p:5,test:function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];if(1===r.length&&"number"===c(r[0])&&r[0]>=0&&r[0]<=16777215)return"num"}});var Kr=Math.round;k.prototype.rgb=function(r){return void 0===r&&(r=!0),!1===r?this._rgb.slice(0,3):this._rgb.slice(0,3).map(Kr)},k.prototype.rgba=function(r){return void 0===r&&(r=!0),this._rgb.slice(0,4).map((function(t,e){return e<3?!1===r?t:Kr(t):t}))};var zr=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];return new(Function.prototype.bind.apply(k,[null].concat(r,["rgb"])))};Object.assign(M,{rgb:zr}),w.format.rgb=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];var e=i(r,"rgba");return void 0===e[3]&&(e[3]=1),e},w.autodetect.push({p:3,test:function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];if("array"===c(r=i(r,"rgba"))&&(3===r.length||4===r.length&&"number"==c(r[3])&&r[3]>=0&&r[3]<=1))return"rgb"}});var Ur=Math.log,Vr=function(r){var t,e,n,a=r/100;return a<66?(t=255,e=a<6?0:-155.25485562709179-.44596950469579133*(e=a-2)+104.49216199393888*Ur(e),n=a<20?0:.8274096064007395*(n=a-10)-254.76935184120902+115.67994401066147*Ur(n)):(t=351.97690566805693+.114206453784165*(t=a-55)-40.25366309332127*Ur(t),e=325.4494125711974+.07943456536662342*(e=a-50)-28.0852963507957*Ur(e),n=255),[t,e,n,1]},Dr=Math.round;k.prototype.temp=k.prototype.kelvin=k.prototype.temperature=function(){return function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];for(var e,n=i(r,"rgb"),a=n[0],f=n[2],o=1e3,u=4e4;u-o>.4;){var c=Vr(e=.5*(u+o));c[2]/c[0]>=f/a?u=e:o=e}return Dr(e)}(this._rgb)};var Tr=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];return new(Function.prototype.bind.apply(k,[null].concat(r,["temp"])))};Object.assign(M,{temp:Tr,kelvin:Tr,temperature:Tr}),w.format.temp=w.format.kelvin=w.format.temperature=Vr,k.prototype.oklab=function(){return X(this._rgb)};var Hr=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];return new(Function.prototype.bind.apply(k,[null].concat(r,["oklab"])))};Object.assign(M,{oklab:Hr}),w.format.oklab=J,w.autodetect.push({p:2,test:function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];if("array"===c(r=i(r,"oklab"))&&3===r.length)return"oklab"}}),k.prototype.oklch=function(){return C(this._rgb)};var Jr=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];return new(Function.prototype.bind.apply(k,[null].concat(r,["oklch"])))};Object.assign(M,{oklch:Jr}),w.format.oklch=Q,w.autodetect.push({p:2,test:function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];if("array"===c(r=i(r,"oklch"))&&3===r.length)return"oklch"}});var Qr={aliceblue:"#f0f8ff",antiquewhite:"#faebd7",aqua:"#00ffff",aquamarine:"#7fffd4",azure:"#f0ffff",beige:"#f5f5dc",bisque:"#ffe4c4",black:"#000000",blanchedalmond:"#ffebcd",blue:"#0000ff",blueviolet:"#8a2be2",brown:"#a52a2a",burlywood:"#deb887",cadetblue:"#5f9ea0",chartreuse:"#7fff00",chocolate:"#d2691e",coral:"#ff7f50",cornflowerblue:"#6495ed",cornsilk:"#fff8dc",crimson:"#dc143c",cyan:"#00ffff",darkblue:"#00008b",darkcyan:"#008b8b",darkgoldenrod:"#b8860b",darkgray:"#a9a9a9",darkgreen:"#006400",darkgrey:"#a9a9a9",darkkhaki:"#bdb76b",darkmagenta:"#8b008b",darkolivegreen:"#556b2f",darkorange:"#ff8c00",darkorchid:"#9932cc",darkred:"#8b0000",darksalmon:"#e9967a",darkseagreen:"#8fbc8f",darkslateblue:"#483d8b",darkslategray:"#2f4f4f",darkslategrey:"#2f4f4f",darkturquoise:"#00ced1",darkviolet:"#9400d3",deeppink:"#ff1493",deepskyblue:"#00bfff",dimgray:"#696969",dimgrey:"#696969",dodgerblue:"#1e90ff",firebrick:"#b22222",floralwhite:"#fffaf0",forestgreen:"#228b22",fuchsia:"#ff00ff",gainsboro:"#dcdcdc",ghostwhite:"#f8f8ff",gold:"#ffd700",goldenrod:"#daa520",gray:"#808080",green:"#008000",greenyellow:"#adff2f",grey:"#808080",honeydew:"#f0fff0",hotpink:"#ff69b4",indianred:"#cd5c5c",indigo:"#4b0082",ivory:"#fffff0",khaki:"#f0e68c",laserlemon:"#ffff54",lavender:"#e6e6fa",lavenderblush:"#fff0f5",lawngreen:"#7cfc00",lemonchiffon:"#fffacd",lightblue:"#add8e6",lightcoral:"#f08080",lightcyan:"#e0ffff",lightgoldenrod:"#fafad2",lightgoldenrodyellow:"#fafad2",lightgray:"#d3d3d3",lightgreen:"#90ee90",lightgrey:"#d3d3d3",lightpink:"#ffb6c1",lightsalmon:"#ffa07a",lightseagreen:"#20b2aa",lightskyblue:"#87cefa",lightslategray:"#778899",lightslategrey:"#778899",lightsteelblue:"#b0c4de",lightyellow:"#ffffe0",lime:"#00ff00",limegreen:"#32cd32",linen:"#faf0e6",magenta:"#ff00ff",maroon:"#800000",maroon2:"#7f0000",maroon3:"#b03060",mediumaquamarine:"#66cdaa",mediumblue:"#0000cd",mediumorchid:"#ba55d3",mediumpurple:"#9370db",mediumseagreen:"#3cb371",mediumslateblue:"#7b68ee",mediumspringgreen:"#00fa9a",mediumturquoise:"#48d1cc",mediumvioletred:"#c71585",midnightblue:"#191970",mintcream:"#f5fffa",mistyrose:"#ffe4e1",moccasin:"#ffe4b5",navajowhite:"#ffdead",navy:"#000080",oldlace:"#fdf5e6",olive:"#808000",olivedrab:"#6b8e23",orange:"#ffa500",orangered:"#ff4500",orchid:"#da70d6",palegoldenrod:"#eee8aa",palegreen:"#98fb98",paleturquoise:"#afeeee",palevioletred:"#db7093",papayawhip:"#ffefd5",peachpuff:"#ffdab9",peru:"#cd853f",pink:"#ffc0cb",plum:"#dda0dd",powderblue:"#b0e0e6",purple:"#800080",purple2:"#7f007f",purple3:"#a020f0",rebeccapurple:"#663399",red:"#ff0000",rosybrown:"#bc8f8f",royalblue:"#4169e1",saddlebrown:"#8b4513",salmon:"#fa8072",sandybrown:"#f4a460",seagreen:"#2e8b57",seashell:"#fff5ee",sienna:"#a0522d",silver:"#c0c0c0",skyblue:"#87ceeb",slateblue:"#6a5acd",slategray:"#708090",slategrey:"#708090",snow:"#fffafa",springgreen:"#00ff7f",steelblue:"#4682b4",tan:"#d2b48c",teal:"#008080",thistle:"#d8bfd8",tomato:"#ff6347",turquoise:"#40e0d0",violet:"#ee82ee",wheat:"#f5deb3",white:"#ffffff",whitesmoke:"#f5f5f5",yellow:"#ffff00",yellowgreen:"#9acd32"};k.prototype.name=function(){for(var r=Or(this._rgb,"rgb"),t=0,e=Object.keys(Qr);t0;)t[e]=arguments[e+1];if(!t.length&&"string"===c(r)&&Qr[r.toLowerCase()])return"named"}}),k.prototype.alpha=function(r,t){return void 0===t&&(t=!1),void 0!==r&&"number"===c(r)?t?(this._rgb[3]=r,this):new k([this._rgb[0],this._rgb[1],this._rgb[2],r],"rgb"):this._rgb[3]},k.prototype.clipped=function(){return this._rgb._clipped||!1},k.prototype.darken=function(r){void 0===r&&(r=1);var t=this.lab();return t[0]-=A.Kn*r,new k(t,"lab").alpha(this.alpha(),!0)},k.prototype.brighten=function(r){return void 0===r&&(r=1),this.darken(-r)},k.prototype.darker=k.prototype.darken,k.prototype.brighter=k.prototype.brighten,k.prototype.get=function(r){var t=r.split("."),e=t[0],n=t[1],a=this[e]();if(n){var f=e.indexOf(n)-("ok"===e.substr(0,2)?2:0);if(f>-1)return a[f];throw new Error("unknown channel "+n+" in mode "+e)}return a};var rt=Math.pow;k.prototype.luminance=function(r,t){if(void 0===t&&(t="rgb"),void 0!==r&&"number"===c(r)){if(0===r)return new k([0,0,0,this._rgb[3]],"rgb");if(1===r)return new k([255,255,255,this._rgb[3]],"rgb");var e=this.luminance(),n=20,a=function(e,f){var o=e.interpolate(f,.5,t),u=o.luminance();return Math.abs(r-u)<1e-7||!n--?o:u>r?a(e,o):a(o,f)},f=(e>r?a(new k([0,0,0]),this):a(this,new k([255,255,255]))).rgb();return new k(f.concat([this._rgb[3]]))}return tt.apply(void 0,this._rgb.slice(0,3))};var tt=function(r,t,e){return.2126*(r=et(r))+.7152*(t=et(t))+.0722*(e=et(e))},et=function(r){return(r/=255)<=.03928?r/12.92:rt((r+.055)/1.055,2.4)},nt={};function at(r,t,e){void 0===e&&(e=.5);for(var n=[],a=arguments.length-3;a-- >0;)n[a]=arguments[a+3];var f=n[0]||"lrgb";if(nt[f]||n.length||(f=Object.keys(nt)[0]),!nt[f])throw new Error("interpolation mode "+f+" is not defined");return"object"!==c(r)&&(r=new k(r)),"object"!==c(t)&&(t=new k(t)),nt[f](r,t,e).alpha(r.alpha()+e*(t.alpha()-r.alpha()))}k.prototype.mix=k.prototype.interpolate=function(r,t){void 0===t&&(t=.5);for(var e=[],n=arguments.length-2;n-- >0;)e[n]=arguments[n+2];return at.apply(void 0,[this,r,t].concat(e))},k.prototype.premultiply=function(r){void 0===r&&(r=!1);var t=this._rgb,e=t[3];return r?(this._rgb=[t[0]*e,t[1]*e,t[2]*e,e],this):new k([t[0]*e,t[1]*e,t[2]*e,e],"rgb")},k.prototype.saturate=function(r){void 0===r&&(r=1);var t=this.lch();return t[1]+=A.Kn*r,t[1]<0&&(t[1]=0),new k(t,"lch").alpha(this.alpha(),!0)},k.prototype.desaturate=function(r){return void 0===r&&(r=1),this.saturate(-r)},k.prototype.set=function(r,t,e){void 0===e&&(e=!1);var n=r.split("."),a=n[0],f=n[1],o=this[a]();if(f){var u=a.indexOf(f)-("ok"===a.substr(0,2)?2:0);if(u>-1){if("string"==c(t))switch(t.charAt(0)){case"+":case"-":o[u]+=+t;break;case"*":o[u]*=+t.substr(1);break;case"/":o[u]/=+t.substr(1);break;default:o[u]=+t}else{if("number"!==c(t))throw new Error("unsupported value for Color.set");o[u]=t}var i=new k(o,a);return e?(this._rgb=i._rgb,this):i}throw new Error("unknown channel "+f+" in mode "+a)}return o},k.prototype.tint=function(r){void 0===r&&(r=.5);for(var t=[],e=arguments.length-1;e-- >0;)t[e]=arguments[e+1];return at.apply(void 0,[this,"white",r].concat(t))},k.prototype.shade=function(r){void 0===r&&(r=.5);for(var t=[],e=arguments.length-1;e-- >0;)t[e]=arguments[e+1];return at.apply(void 0,[this,"black",r].concat(t))};nt.rgb=function(r,t,e){var n=r._rgb,a=t._rgb;return new k(n[0]+e*(a[0]-n[0]),n[1]+e*(a[1]-n[1]),n[2]+e*(a[2]-n[2]),"rgb")};var ft=Math.sqrt,ot=Math.pow;nt.lrgb=function(r,t,e){var n=r._rgb,a=n[0],f=n[1],o=n[2],u=t._rgb,c=u[0],i=u[1],l=u[2];return new k(ft(ot(a,2)*(1-e)+ot(c,2)*e),ft(ot(f,2)*(1-e)+ot(i,2)*e),ft(ot(o,2)*(1-e)+ot(l,2)*e),"rgb")};function ut(r,t,e,n){var a,f,o,u,c,i,l,s,h,d,b,g,v;return"hsl"===n?(o=r.hsl(),u=t.hsl()):"hsv"===n?(o=r.hsv(),u=t.hsv()):"hcg"===n?(o=r.hcg(),u=t.hcg()):"hsi"===n?(o=r.hsi(),u=t.hsi()):"lch"===n||"hcl"===n?(n="hcl",o=r.hcl(),u=t.hcl()):"oklch"===n&&(o=r.oklch().reverse(),u=t.oklch().reverse()),"h"!==n.substr(0,1)&&"oklch"!==n||(c=(a=o)[0],l=a[1],h=a[2],i=(f=u)[0],s=f[1],d=f[2]),isNaN(c)||isNaN(i)?isNaN(c)?isNaN(i)?g=Number.NaN:(g=i,1!=h&&0!=h||"hsv"==n||(b=s)):(g=c,1!=d&&0!=d||"hsv"==n||(b=l)):g=c+e*(i>c&&i-c>180?i-(c+360):i180?i+360-c:i-c),void 0===b&&(b=l+e*(s-l)),v=h+e*(d-h),new k("oklch"===n?[v,b,g]:[g,b,v],n)}nt.lab=function(r,t,e){var n=r.lab(),a=t.lab();return new k(n[0]+e*(a[0]-n[0]),n[1]+e*(a[1]-n[1]),n[2]+e*(a[2]-n[2]),"lab")};var ct=function(r,t,e){return ut(r,t,e,"lch")};nt.lch=ct,nt.hcl=ct;nt.num=function(r,t,e){var n=r.num(),a=t.num();return new k(n+e*(a-n),"num")};nt.hcg=function(r,t,e){return ut(r,t,e,"hcg")};nt.hsi=function(r,t,e){return ut(r,t,e,"hsi")};nt.hsl=function(r,t,e){return ut(r,t,e,"hsl")};nt.hsv=function(r,t,e){return ut(r,t,e,"hsv")};nt.oklab=function(r,t,e){var n=r.oklab(),a=t.oklab();return new k(n[0]+e*(a[0]-n[0]),n[1]+e*(a[1]-n[1]),n[2]+e*(a[2]-n[2]),"oklab")};nt.oklch=function(r,t,e){return ut(r,t,e,"oklch")};var it=Math.pow,lt=Math.sqrt,st=Math.PI,ht=Math.cos,dt=Math.sin,bt=Math.atan2;var gt=function(r,t){for(var e=r.length,a=[0,0,0,0],f=0;f.9999999&&(a[3]=1),new k(n(a))},vt=Math.pow;function pt(r){var t="rgb",n=M("#ccc"),a=0,f=[0,1],o=[],u=[0,0],i=!1,l=[],s=!1,h=0,d=1,b=!1,g={},v=!0,p=1,m=function(r){if((r=r||["#fff","#000"])&&"string"===c(r)&&M.brewer&&M.brewer[r.toLowerCase()]&&(r=M.brewer[r.toLowerCase()]),"array"===c(r)){1===r.length&&(r=[r[0],r[0]]),r=r.slice(0);for(var t=0;t2){var b=function(r){if(null!=i){for(var t=i.length-1,e=0;e=i[e];)e++;return e-1}return 0}(r);s=b/(i.length-2)}else s=d!==h?(r-h)/(d-h):1;s=w(s),a||(s=y(s)),1!==p&&(s=vt(s,p)),s=e(s=u[0]+s*(1-u[0]-u[1]),0,1);var 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100644 --- a/docs/index.html +++ b/docs/index.html @@ -277,9 +277,26 @@

(color1, color2, Kl=1, Kc=1, Kh=1)

chroma.brewer

-

chroma.brewer is an map of ColorBrewer scales that are included in chroma.js for convenience. chroma.scale uses the colors to construct.

+

chroma.brewer is an map of ColorBrewer palettes that are included in chroma.js for convenience. chroma.scale uses the colors to construct. 

chroma.brewer.OrRd
+

Note that chroma.js only includes the 9-step versions of the palettes (11 steps for the diverging palettes). So, for instance, if you use chroma.js to construct a 5-color palette, they will be different from the "official" 5-color palettes in ColorBrewer (which have lower contrast).

+
chroma.scale('RdBu').colors(5);
+// offical 5-color RdBu:
+['#ca0020', '#f4a582', '#f7f7f7', '#92c5de', '#0571b0']
+
+

One way to compensate for this would be to "slice off" the extreme colors:

+
chroma
+    .scale(chroma.brewer.RdBu.slice(1,-1))
+    .colors(5);
+
+

Of course you can also just construct the scale from the official 5-step colors that you can copy and paste from colorbrewer2.org:

+
chroma.scale(['#ca0020', '#f4a582', '#f7f7f7', '#92c5de', '#0571b0'])
+
+

You can access a list of all available palettes via Object.keys(chroma.brewer):

+
Object.keys(chroma.brewer)
+// ['OrRd', 'PuBu', 'BuPu', 'Oranges', 'BuGn', 'YlOrBr', 'YlGn', 'Reds', 'RdPu', 'Greens', 'YlGnBu', 'Purples', 'GnBu', 'Greys', 'YlOrRd', 'PuRd', 'Blues', 'PuBuGn', 'Viridis', 'Spectral', 'RdYlGn', 'RdBu', 'PiYG', 'PRGn', 'RdYlBu', 'BrBG', 'RdGy', 'PuOr', 'Set2', 'Accent', 'Set1', 'Set3', 'Dark2', 'Paired', 'Pastel2', 'Pastel1']
+

chroma.limits

(data, mode, n)

A helper function that computes class breaks for you, based on data. It supports the modes equidistant (e), quantile (q), logarithmic (l), and k-means (k). Let's take a few numbers as sample data.

diff --git a/docs/libs/chroma-light.cjs b/docs/libs/chroma-light.cjs index bb58b840..595258b4 100644 --- a/docs/libs/chroma-light.cjs +++ b/docs/libs/chroma-light.cjs @@ -61,10 +61,13 @@ (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.chroma = factory()); })(this, (function () { 'use strict'; + var min$1 = Math.min; + var max$1 = Math.max; + function limit (x, low, high) { if ( high === void 0 ) high = 1; - return min(max(low, x), high); + return min$1(max$1(low, x), high); } function clip_rgb (rgb) { diff --git a/docs/libs/chroma-light.min.cjs b/docs/libs/chroma-light.min.cjs index 1e876062..ddc330ad 100644 --- a/docs/libs/chroma-light.min.cjs +++ b/docs/libs/chroma-light.min.cjs @@ -55,4 +55,4 @@ * @preserve */ -!function(t,r){"object"==typeof exports&&"undefined"!=typeof module?module.exports=r():"function"==typeof define&&define.amd?define(r):(t="undefined"!=typeof globalThis?globalThis:t||self).chroma=r()}(this,(function(){"use strict";function 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f=O(h),d=0;d<3;d++)f[d]=st(f[d]);return f[3]=1,f}if((r=t.match(rt))||(r=t.match(nt))){var g=r.slice(1,4);g[1]*=.01,g[2]*=.01;for(var m=O(g),p=0;p<3;p++)m[p]=st(m[p]);return m[3]=+r[4],m}if(r=t.match(et)){var b=r.slice(1,4);b[0]=lt(b[0],0,100),b[1]=lt(b[1],-125,125,!0),b[2]=lt(b[2],-125,125,!0);var y=_();x("d50");var w=ut(R(b));return x(y),w[3]=void 0!==r[4]?+r[4]:1,w}if(r=t.match(at)){var M=r.slice(1,4);M[0]=lt(M[0],0,100),M[1]=lt(ct(M[1],0),0,150,!1),M[2]=+ct(M[2].replace("deg",""),0);var k=_();x("d50");var A=ut(function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];var n=(t=u(t,"lch"))[0],e=t[1],a=t[2],o=P(n,e,a),i=o[0],s=o[1],l=o[2],c=R(i,s,l);return[c[0],c[1],c[2],t.length>3?t[3]:1]}(M));return x(k),A[3]=void 0!==r[4]?+r[4]:1,A}if(r=t.match(ot)){var j=r.slice(1,4);j[0]=lt(j[0],0,1),j[1]=lt(j[1],-.4,.4,!0),j[2]=lt(j[2],-.4,.4,!0);var $=ut(S(j));return $[3]=void 0!==r[4]?+r[4]:1,$}if(r=t.match(it)){var F=r.slice(1,4);F[0]=lt(F[0],0,1),F[1]=lt(ct(F[1],0),0,.4,!1),F[2]=+ct(F[2].replace("deg",""),0);var X=ut(function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];var n=(t=u(t,"lch"))[0],e=t[1],a=t[2],o=t.slice(3),i=P(n,e,a),s=i[0],l=i[1],c=i[2],h=S(s,l,c);return[h[0],h[1],h[2]].concat(o.length>0&&o[0]<1?[o[0]]:[])}(F));return X[3]=void 0!==r[4]?+r[4]:1,X}};ht.test=function(t){return q.test(t)||D.test(t)||z.test(t)||J.test(t)||V.test(t)||rt.test(t)||et.test(t)||at.test(t)||ot.test(t)||it.test(t)||T.test(t)||U.test(t)||H.test(t)||Q.test(t)||tt.test(t)||nt.test(t)},b.prototype.css=function(t){return C(this._rgb,t)};var ft=function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];return new(Function.prototype.bind.apply(b,[null].concat(t,["css"])))};y.css=ft,v.format.css=ht,v.autodetect.push({p:5,test:function(t){for(var r=[],n=arguments.length-1;n-- >0;)r[n]=arguments[n+1];if(!r.length&&"string"===s(t)&&ht.test(t))return"css"}});var dt=/^#?([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$/,gt=/^#?([A-Fa-f0-9]{8}|[A-Fa-f0-9]{4})$/,mt=Math.round;b.prototype.hex=function(t){return function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];var n=u(t,"rgba"),e=n[0],a=n[1],o=n[2],i=n[3],s=l(t)||"auto";void 0===i&&(i=1),"auto"===s&&(s=i<1?"rgba":"rgb");var c="000000"+((e=mt(e))<<16|(a=mt(a))<<8|(o=mt(o))).toString(16);c=c.substr(c.length-6);var h="0"+mt(255*i).toString(16);switch(h=h.substr(h.length-2),s.toLowerCase()){case"rgba":return"#"+c+h;case"argb":return"#"+h+c;default:return"#"+c}}(this._rgb,t)};var pt=function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];return new(Function.prototype.bind.apply(b,[null].concat(t,["hex"])))};y.hex=pt,v.format.hex=function(t){if(t.match(dt)){4!==t.length&&7!==t.length||(t=t.substr(1)),3===t.length&&(t=(t=t.split(""))[0]+t[0]+t[1]+t[1]+t[2]+t[2]);var r=parseInt(t,16);return[r>>16,r>>8&255,255&r,1]}if(t.match(gt)){5!==t.length&&9!==t.length||(t=t.substr(1)),4===t.length&&(t=(t=t.split(""))[0]+t[0]+t[1]+t[1]+t[2]+t[2]+t[3]+t[3]);var n=parseInt(t,16);return[n>>24&255,n>>16&255,n>>8&255,Math.round((255&n)/255*100)/100]}throw new Error("unknown hex color: "+t)},v.autodetect.push({p:4,test:function(t){for(var r=[],n=arguments.length-1;n-- >0;)r[n]=arguments[n+1];if(!r.length&&"string"===s(t)&&[3,4,5,6,7,8,9].indexOf(t.length)>=0)return"hex"}}),b.prototype.hsl=function(){return w(this._rgb)};var vt=function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];return new(Function.prototype.bind.apply(b,[null].concat(t,["hsl"])))};y.hsl=vt,v.format.hsl=O,v.autodetect.push({p:2,test:function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];if("array"===s(t=u(t,"hsl"))&&3===t.length)return"hsl"}}),b.prototype.lab=function(){return A(this._rgb)};var bt=function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];return new(Function.prototype.bind.apply(b,[null].concat(t,["lab"])))};Object.assign(y,{lab:bt,getLabWhitePoint:_,setLabWhitePoint:x}),v.format.lab=R,v.autodetect.push({p:2,test:function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];if("array"===s(t=u(t,"lab"))&&3===t.length)return"lab"}}),b.prototype.oklab=function(){return N(this._rgb)};var yt=function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];return new(Function.prototype.bind.apply(b,[null].concat(t,["oklab"])))};Object.assign(y,{oklab:yt}),v.format.oklab=S,v.autodetect.push({p:2,test:function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];if("array"===s(t=u(t,"oklab"))&&3===t.length)return"oklab"}});var wt=Math.round;b.prototype.rgb=function(t){return void 0===t&&(t=!0),!1===t?this._rgb.slice(0,3):this._rgb.slice(0,3).map(wt)},b.prototype.rgba=function(t){return void 0===t&&(t=!0),this._rgb.slice(0,4).map((function(r,n){return n<3?!1===t?r:wt(r):r}))};var Mt=function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];return new(Function.prototype.bind.apply(b,[null].concat(t,["rgb"])))};Object.assign(y,{rgb:Mt}),v.format.rgb=function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];var n=u(t,"rgba");return void 0===n[3]&&(n[3]=1),n},v.autodetect.push({p:3,test:function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];if("array"===s(t=u(t,"rgba"))&&(3===t.length||4===t.length&&"number"==s(t[3])&&t[3]>=0&&t[3]<=1))return"rgb"}}),b.prototype.alpha=function(t,r){return void 0===r&&(r=!1),void 0!==t&&"number"===s(t)?r?(this._rgb[3]=t,this):new b([this._rgb[0],this._rgb[1],this._rgb[2],t],"rgb"):this._rgb[3]},b.prototype.darken=function(t){void 0===t&&(t=1);var r=this.lab();return r[0]-=M.Kn*t,new b(r,"lab").alpha(this.alpha(),!0)},b.prototype.brighten=function(t){return void 0===t&&(t=1),this.darken(-t)},b.prototype.darker=b.prototype.darken,b.prototype.brighter=b.prototype.brighten,b.prototype.get=function(t){var r=t.split("."),n=r[0],e=r[1],a=this[n]();if(e){var o=n.indexOf(e)-("ok"===n.substr(0,2)?2:0);if(o>-1)return a[o];throw new Error("unknown channel "+e+" in mode "+n)}return a};var kt={};function xt(t,r,n){void 0===n&&(n=.5);for(var e=[],a=arguments.length-3;a-- >0;)e[a]=arguments[a+3];var o=e[0]||"lrgb";if(kt[o]||e.length||(o=Object.keys(kt)[0]),!kt[o])throw new Error("interpolation mode "+o+" is not defined");return"object"!==s(t)&&(t=new b(t)),"object"!==s(r)&&(r=new b(r)),kt[o](t,r,n).alpha(t.alpha()+n*(r.alpha()-t.alpha()))}b.prototype.mix=b.prototype.interpolate=function(t,r){void 0===r&&(r=.5);for(var n=[],e=arguments.length-2;e-- >0;)n[e]=arguments[e+2];return xt.apply(void 0,[this,t,r].concat(n))},b.prototype.set=function(t,r,n){void 0===n&&(n=!1);var e=t.split("."),a=e[0],o=e[1],i=this[a]();if(o){var u=a.indexOf(o)-("ok"===a.substr(0,2)?2:0);if(u>-1){if("string"==s(r))switch(r.charAt(0)){case"+":case"-":i[u]+=+r;break;case"*":i[u]*=+r.substr(1);break;case"/":i[u]/=+r.substr(1);break;default:i[u]=+r}else{if("number"!==s(r))throw new Error("unsupported value for Color.set");i[u]=r}var l=new b(i,a);return n?(this._rgb=l._rgb,this):l}throw new Error("unknown channel "+o+" in mode "+a)}return i},b.prototype.tint=function(t){void 0===t&&(t=.5);for(var r=[],n=arguments.length-1;n-- >0;)r[n]=arguments[n+1];return xt.apply(void 0,[this,"white",t].concat(r))},b.prototype.shade=function(t){void 0===t&&(t=.5);for(var r=[],n=arguments.length-1;n-- >0;)r[n]=arguments[n+1];return xt.apply(void 0,[this,"black",t].concat(r))};var _t=Math.sqrt,At=Math.pow;kt.lrgb=function(t,r,n){var e=t._rgb,a=e[0],o=e[1],i=e[2],s=r._rgb,u=s[0],l=s[1],c=s[2];return new b(_t(At(a,2)*(1-n)+At(u,2)*n),_t(At(o,2)*(1-n)+At(l,2)*n),_t(At(i,2)*(1-n)+At(c,2)*n),"rgb")};return kt.oklab=function(t,r,n){var e=t.oklab(),a=r.oklab();return new b(e[0]+n*(a[0]-e[0]),e[1]+n*(a[1]-e[1]),e[2]+n*(a[2]-e[2]),"oklab")},Object.assign(y,{Color:b,valid:function(){for(var t=[],r=arguments.length;r--;)t[r]=arguments[r];try{return new(Function.prototype.bind.apply(b,[null].concat(t))),!0}catch(t){return!1}},css:ft,hex:pt,hsl:vt,lab:bt,oklab:yt,rgb:Mt,mix:xt,interpolate:xt}),y})); diff --git a/docs/libs/chroma.cjs b/docs/libs/chroma.cjs index 0769b043..5e914159 100644 --- a/docs/libs/chroma.cjs +++ b/docs/libs/chroma.cjs @@ -61,11 +61,14 @@ (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.chroma = factory()); })(this, (function () { 'use strict'; + var min$4 = Math.min; + var max$4 = Math.max; + function limit (x, low, high) { if ( low === void 0 ) low = 0; if ( high === void 0 ) high = 1; - return min$3(max$3(low, x), high); + return min$4(max$4(low, x), high); } function clip_rgb (rgb) { @@ -84,7 +87,7 @@ // ported from jQuery's $.type var classToType = {}; - for (var i$1 = 0, list$1 = [ + for (var i = 0, list = [ 'Boolean', 'Number', 'String', @@ -94,8 +97,8 @@ 'RegExp', 'Undefined', 'Null' - ]; i$1 < list$1.length; i$1 += 1) { - var name = list$1[i$1]; + ]; i < list.length; i += 1) { + var name = list[i]; classToType[("[object " + name + "]")] = name.toLowerCase(); } @@ -3858,12 +3861,21 @@ Pastel1: ['#fbb4ae', '#b3cde3', '#ccebc5', '#decbe4', '#fed9a6', '#ffffcc', '#e5d8bd', '#fddaec', '#f2f2f2'] }; - // add lowercase aliases for case-insensitive matches - for (var i = 0, list = Object.keys(colorbrewer); i < list.length; i += 1) { - var key = list[i]; + var colorbrewerTypes = Object.keys(colorbrewer); + var typeMap = new Map(colorbrewerTypes.map(function (key) { return [key.toLowerCase(), key]; })); - colorbrewer[key.toLowerCase()] = colorbrewer[key]; - } + // use Proxy to allow case-insensitive access to palettes + var colorbrewerProxy = typeof Proxy === 'function' ? new Proxy(colorbrewer, { + get: function get(target, prop) { + var lower = prop.toLowerCase(); + if (typeMap.has(lower)) { + return target[typeMap.get(lower)]; + } + }, + getOwnPropertyNames: function getOwnPropertyNames() { + return Object.getOwnPropertyNames(colorbrewerTypes); + } + }) : colorbrewer; // feel free to comment out anything to rollup // a smaller chroma.js bundle @@ -3873,7 +3885,7 @@ average: average, bezier: bezier$1, blend: blend, - brewer: colorbrewer, + brewer: colorbrewerProxy, Color: Color, colors: w3cx11, contrast: contrast, diff --git a/docs/libs/chroma.min.cjs b/docs/libs/chroma.min.cjs index 4fa5f456..f9397b5e 100644 --- a/docs/libs/chroma.min.cjs +++ b/docs/libs/chroma.min.cjs @@ -55,4 +55,4 @@ * @preserve */ -!function(r,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(r="undefined"!=typeof globalThis?globalThis:r||self).chroma=t()}(this,(function(){"use strict";function r(r,t,n){return void 0===t&&(t=0),void 0===n&&(n=1),l(s(t,r),n)}function 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new(Function.prototype.bind.apply(k,[null].concat(r,["lch"])))},Wr=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];return new(Function.prototype.bind.apply(k,[null].concat(r,["hcl"])))};Object.assign(M,{lch:Sr,hcl:Wr}),w.format.lch=H,w.format.hcl=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];var e=i(r,"hcl").reverse();return H.apply(void 0,e)},["lch","hcl"].forEach((function(r){return w.autodetect.push({p:2,test:function(){for(var t=[],e=arguments.length;e--;)t[e]=arguments[e];if("array"===c(t=i(t,r))&&3===t.length)return r}})}));k.prototype.num=function(){return function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];var e=i(r,"rgb");return(e[0]<<16)+(e[1]<<8)+e[2]}(this._rgb)};var Ir=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];return new(Function.prototype.bind.apply(k,[null].concat(r,["num"])))};Object.assign(M,{num:Ir}),w.format.num=function(r){if("number"==c(r)&&r>=0&&r<=16777215)return[r>>16,r>>8&255,255&r,1];throw new Error("unknown num color: "+r)},w.autodetect.push({p:5,test:function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];if(1===r.length&&"number"===c(r[0])&&r[0]>=0&&r[0]<=16777215)return"num"}});var Kr=Math.round;k.prototype.rgb=function(r){return void 0===r&&(r=!0),!1===r?this._rgb.slice(0,3):this._rgb.slice(0,3).map(Kr)},k.prototype.rgba=function(r){return void 0===r&&(r=!0),this._rgb.slice(0,4).map((function(t,e){return e<3?!1===r?t:Kr(t):t}))};var zr=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];return new(Function.prototype.bind.apply(k,[null].concat(r,["rgb"])))};Object.assign(M,{rgb:zr}),w.format.rgb=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];var e=i(r,"rgba");return void 0===e[3]&&(e[3]=1),e},w.autodetect.push({p:3,test:function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];if("array"===c(r=i(r,"rgba"))&&(3===r.length||4===r.length&&"number"==c(r[3])&&r[3]>=0&&r[3]<=1))return"rgb"}});var Ur=Math.log,Vr=function(r){var t,e,n,a=r/100;return a<66?(t=255,e=a<6?0:-155.25485562709179-.44596950469579133*(e=a-2)+104.49216199393888*Ur(e),n=a<20?0:.8274096064007395*(n=a-10)-254.76935184120902+115.67994401066147*Ur(n)):(t=351.97690566805693+.114206453784165*(t=a-55)-40.25366309332127*Ur(t),e=325.4494125711974+.07943456536662342*(e=a-50)-28.0852963507957*Ur(e),n=255),[t,e,n,1]},Dr=Math.round;k.prototype.temp=k.prototype.kelvin=k.prototype.temperature=function(){return function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];for(var e,n=i(r,"rgb"),a=n[0],f=n[2],o=1e3,u=4e4;u-o>.4;){var c=Vr(e=.5*(u+o));c[2]/c[0]>=f/a?u=e:o=e}return Dr(e)}(this._rgb)};var Tr=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];return new(Function.prototype.bind.apply(k,[null].concat(r,["temp"])))};Object.assign(M,{temp:Tr,kelvin:Tr,temperature:Tr}),w.format.temp=w.format.kelvin=w.format.temperature=Vr,k.prototype.oklab=function(){return X(this._rgb)};var Hr=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];return new(Function.prototype.bind.apply(k,[null].concat(r,["oklab"])))};Object.assign(M,{oklab:Hr}),w.format.oklab=J,w.autodetect.push({p:2,test:function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];if("array"===c(r=i(r,"oklab"))&&3===r.length)return"oklab"}}),k.prototype.oklch=function(){return C(this._rgb)};var Jr=function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];return new(Function.prototype.bind.apply(k,[null].concat(r,["oklch"])))};Object.assign(M,{oklch:Jr}),w.format.oklch=Q,w.autodetect.push({p:2,test:function(){for(var r=[],t=arguments.length;t--;)r[t]=arguments[t];if("array"===c(r=i(r,"oklch"))&&3===r.length)return"oklch"}});var Qr={aliceblue:"#f0f8ff",antiquewhite:"#faebd7",aqua:"#00ffff",aquamarine:"#7fffd4",azure:"#f0ffff",beige:"#f5f5dc",bisque:"#ffe4c4",black:"#000000",blanchedalmond:"#ffebcd",blue:"#0000ff",blueviolet:"#8a2be2",brown:"#a52a2a",burlywood:"#deb887",cadetblue:"#5f9ea0",chartreuse:"#7fff00",chocolate:"#d2691e",coral:"#ff7f50",cornflowerblue:"#6495ed",cornsilk:"#fff8dc",crimson:"#dc143c",cyan:"#00ffff",darkblue:"#00008b",darkcyan:"#008b8b",darkgoldenrod:"#b8860b",darkgray:"#a9a9a9",darkgreen:"#006400",darkgrey:"#a9a9a9",darkkhaki:"#bdb76b",darkmagenta:"#8b008b",darkolivegreen:"#556b2f",darkorange:"#ff8c00",darkorchid:"#9932cc",darkred:"#8b0000",darksalmon:"#e9967a",darkseagreen:"#8fbc8f",darkslateblue:"#483d8b",darkslategray:"#2f4f4f",darkslategrey:"#2f4f4f",darkturquoise:"#00ced1",darkviolet:"#9400d3",deeppink:"#ff1493",deepskyblue:"#00bfff",dimgray:"#696969",dimgrey:"#696969",dodgerblue:"#1e90ff",firebrick:"#b22222",floralwhite:"#fffaf0",forestgreen:"#228b22",fuchsia:"#ff00ff",gainsboro:"#dcdcdc",ghostwhite:"#f8f8ff",gold:"#ffd700",goldenrod:"#daa520",gray:"#808080",green:"#008000",greenyellow:"#adff2f",grey:"#808080",honeydew:"#f0fff0",hotpink:"#ff69b4",indianred:"#cd5c5c",indigo:"#4b0082",ivory:"#fffff0",khaki:"#f0e68c",laserlemon:"#ffff54",lavender:"#e6e6fa",lavenderblush:"#fff0f5",lawngreen:"#7cfc00",lemonchiffon:"#fffacd",lightblue:"#add8e6",lightcoral:"#f08080",lightcyan:"#e0ffff",lightgoldenrod:"#fafad2",lightgoldenrodyellow:"#fafad2",lightgray:"#d3d3d3",lightgreen:"#90ee90",lightgrey:"#d3d3d3",lightpink:"#ffb6c1",lightsalmon:"#ffa07a",lightseagreen:"#20b2aa",lightskyblue:"#87cefa",lightslategray:"#778899",lightslategrey:"#778899",lightsteelblue:"#b0c4de",lightyellow:"#ffffe0",lime:"#00ff00",limegreen:"#32cd32",linen:"#faf0e6",magenta:"#ff00ff",maroon:"#800000",maroon2:"#7f0000",maroon3:"#b03060",mediumaquamarine:"#66cdaa",mediumblue:"#0000cd",mediumorchid:"#ba55d3",mediumpurple:"#9370db",mediumseagreen:"#3cb371",mediumslateblue:"#7b68ee",mediumspringgreen:"#00fa9a",mediumturquoise:"#48d1cc",mediumvioletred:"#c71585",midnightblue:"#191970",mintcream:"#f5fffa",mistyrose:"#ffe4e1",moccasin:"#ffe4b5",navajowhite:"#ffdead",navy:"#000080",oldlace:"#fdf5e6",olive:"#808000",olivedrab:"#6b8e23",orange:"#ffa500",orangered:"#ff4500",orchid:"#da70d6",palegoldenrod:"#eee8aa",palegreen:"#98fb98",paleturquoise:"#afeeee",palevioletred:"#db7093",papayawhip:"#ffefd5",peachpuff:"#ffdab9",peru:"#cd853f",pink:"#ffc0cb",plum:"#dda0dd",powderblue:"#b0e0e6",purple:"#800080",purple2:"#7f007f",purple3:"#a020f0",rebeccapurple:"#663399",red:"#ff0000",rosybrown:"#bc8f8f",royalblue:"#4169e1",saddlebrown:"#8b4513",salmon:"#fa8072",sandybrown:"#f4a460",seagreen:"#2e8b57",seashell:"#fff5ee",sienna:"#a0522d",silver:"#c0c0c0",skyblue:"#87ceeb",slateblue:"#6a5acd",slategray:"#708090",slategrey:"#708090",snow:"#fffafa",springgreen:"#00ff7f",steelblue:"#4682b4",tan:"#d2b48c",teal:"#008080",thistle:"#d8bfd8",tomato:"#ff6347",turquoise:"#40e0d0",violet:"#ee82ee",wheat:"#f5deb3",white:"#ffffff",whitesmoke:"#f5f5f5",yellow:"#ffff00",yellowgreen:"#9acd32"};k.prototype.name=function(){for(var r=Or(this._rgb,"rgb"),t=0,e=Object.keys(Qr);t0;)t[e]=arguments[e+1];if(!t.length&&"string"===c(r)&&Qr[r.toLowerCase()])return"named"}}),k.prototype.alpha=function(r,t){return void 0===t&&(t=!1),void 0!==r&&"number"===c(r)?t?(this._rgb[3]=r,this):new k([this._rgb[0],this._rgb[1],this._rgb[2],r],"rgb"):this._rgb[3]},k.prototype.clipped=function(){return this._rgb._clipped||!1},k.prototype.darken=function(r){void 0===r&&(r=1);var t=this.lab();return t[0]-=A.Kn*r,new k(t,"lab").alpha(this.alpha(),!0)},k.prototype.brighten=function(r){return void 0===r&&(r=1),this.darken(-r)},k.prototype.darker=k.prototype.darken,k.prototype.brighter=k.prototype.brighten,k.prototype.get=function(r){var t=r.split("."),e=t[0],n=t[1],a=this[e]();if(n){var f=e.indexOf(n)-("ok"===e.substr(0,2)?2:0);if(f>-1)return a[f];throw new Error("unknown channel "+n+" in mode "+e)}return a};var rt=Math.pow;k.prototype.luminance=function(r,t){if(void 0===t&&(t="rgb"),void 0!==r&&"number"===c(r)){if(0===r)return new k([0,0,0,this._rgb[3]],"rgb");if(1===r)return new k([255,255,255,this._rgb[3]],"rgb");var e=this.luminance(),n=20,a=function(e,f){var o=e.interpolate(f,.5,t),u=o.luminance();return Math.abs(r-u)<1e-7||!n--?o:u>r?a(e,o):a(o,f)},f=(e>r?a(new k([0,0,0]),this):a(this,new k([255,255,255]))).rgb();return new k(f.concat([this._rgb[3]]))}return tt.apply(void 0,this._rgb.slice(0,3))};var tt=function(r,t,e){return.2126*(r=et(r))+.7152*(t=et(t))+.0722*(e=et(e))},et=function(r){return(r/=255)<=.03928?r/12.92:rt((r+.055)/1.055,2.4)},nt={};function at(r,t,e){void 0===e&&(e=.5);for(var n=[],a=arguments.length-3;a-- >0;)n[a]=arguments[a+3];var f=n[0]||"lrgb";if(nt[f]||n.length||(f=Object.keys(nt)[0]),!nt[f])throw new Error("interpolation mode "+f+" is not defined");return"object"!==c(r)&&(r=new k(r)),"object"!==c(t)&&(t=new k(t)),nt[f](r,t,e).alpha(r.alpha()+e*(t.alpha()-r.alpha()))}k.prototype.mix=k.prototype.interpolate=function(r,t){void 0===t&&(t=.5);for(var e=[],n=arguments.length-2;n-- 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0===r&&(r=.5);for(var t=[],e=arguments.length-1;e-- >0;)t[e]=arguments[e+1];return at.apply(void 0,[this,"white",r].concat(t))},k.prototype.shade=function(r){void 0===r&&(r=.5);for(var t=[],e=arguments.length-1;e-- >0;)t[e]=arguments[e+1];return at.apply(void 0,[this,"black",r].concat(t))};nt.rgb=function(r,t,e){var n=r._rgb,a=t._rgb;return new k(n[0]+e*(a[0]-n[0]),n[1]+e*(a[1]-n[1]),n[2]+e*(a[2]-n[2]),"rgb")};var ft=Math.sqrt,ot=Math.pow;nt.lrgb=function(r,t,e){var n=r._rgb,a=n[0],f=n[1],o=n[2],u=t._rgb,c=u[0],i=u[1],l=u[2];return new k(ft(ot(a,2)*(1-e)+ot(c,2)*e),ft(ot(f,2)*(1-e)+ot(i,2)*e),ft(ot(o,2)*(1-e)+ot(l,2)*e),"rgb")};function ut(r,t,e,n){var a,f,o,u,c,i,l,s,h,d,b,g,v;return"hsl"===n?(o=r.hsl(),u=t.hsl()):"hsv"===n?(o=r.hsv(),u=t.hsv()):"hcg"===n?(o=r.hcg(),u=t.hcg()):"hsi"===n?(o=r.hsi(),u=t.hsi()):"lch"===n||"hcl"===n?(n="hcl",o=r.hcl(),u=t.hcl()):"oklch"===n&&(o=r.oklch().reverse(),u=t.oklch().reverse()),"h"!==n.substr(0,1)&&"oklch"!==n||(c=(a=o)[0],l=a[1],h=a[2],i=(f=u)[0],s=f[1],d=f[2]),isNaN(c)||isNaN(i)?isNaN(c)?isNaN(i)?g=Number.NaN:(g=i,1!=h&&0!=h||"hsv"==n||(b=s)):(g=c,1!=d&&0!=d||"hsv"==n||(b=l)):g=c+e*(i>c&&i-c>180?i-(c+360):i180?i+360-c:i-c),void 0===b&&(b=l+e*(s-l)),v=h+e*(d-h),new k("oklch"===n?[v,b,g]:[g,b,v],n)}nt.lab=function(r,t,e){var n=r.lab(),a=t.lab();return new k(n[0]+e*(a[0]-n[0]),n[1]+e*(a[1]-n[1]),n[2]+e*(a[2]-n[2]),"lab")};var ct=function(r,t,e){return ut(r,t,e,"lch")};nt.lch=ct,nt.hcl=ct;nt.num=function(r,t,e){var n=r.num(),a=t.num();return new k(n+e*(a-n),"num")};nt.hcg=function(r,t,e){return ut(r,t,e,"hcg")};nt.hsi=function(r,t,e){return ut(r,t,e,"hsi")};nt.hsl=function(r,t,e){return ut(r,t,e,"hsl")};nt.hsv=function(r,t,e){return ut(r,t,e,"hsv")};nt.oklab=function(r,t,e){var n=r.oklab(),a=t.oklab();return new k(n[0]+e*(a[0]-n[0]),n[1]+e*(a[1]-n[1]),n[2]+e*(a[2]-n[2]),"oklab")};nt.oklch=function(r,t,e){return ut(r,t,e,"oklch")};var it=Math.pow,lt=Math.sqrt,st=Math.PI,ht=Math.cos,dt=Math.sin,bt=Math.atan2;var gt=function(r,t){for(var e=r.length,a=[0,0,0,0],f=0;f.9999999&&(a[3]=1),new k(n(a))},vt=Math.pow;function pt(r){var t="rgb",n=M("#ccc"),a=0,f=[0,1],o=[],u=[0,0],i=!1,l=[],s=!1,h=0,d=1,b=!1,g={},v=!0,p=1,m=function(r){if((r=r||["#fff","#000"])&&"string"===c(r)&&M.brewer&&M.brewer[r.toLowerCase()]&&(r=M.brewer[r.toLowerCase()]),"array"===c(r)){1===r.length&&(r=[r[0],r[0]]),r=r.slice(0);for(var t=0;t2){var b=function(r){if(null!=i){for(var t=i.length-1,e=0;e=i[e];)e++;return e-1}return 0}(r);s=b/(i.length-2)}else s=d!==h?(r-h)/(d-h):1;s=w(s),a||(s=y(s)),1!==p&&(s=vt(s,p)),s=e(s=u[0]+s*(1-u[0]-u[1]),0,1);var m=Math.floor(1e4*s);if(v&&g[m])f=g[m];else{if("array"===c(l))for(var k=0;k=N&&k===o.length-1){f=l[k];break}if(s>N&&s2){var c=r.map((function(t,e){return e/(r.length-1)})),i=r.map((function(r){return(r-h)/(d-h)}));i.every((function(r,t){return c[t]===r}))||(w=function(r){if(r<=0||r>=1)return r;for(var t=0;r>=i[t+1];)t++;var e=(r-i[t])/(i[t+1]-i[t]);return c[t]+e*(c[t+1]-c[t])})}}return f=[h,d],_},_.mode=function(r){return arguments.length?(t=r,N(),_):t},_.range=function(r,t){return m(r),_},_.out=function(r){return s=r,_},_.spread=function(r){return arguments.length?(a=r,_):a},_.correctLightness=function(r){return null==r&&(r=!0),b=r,N(),y=b?function(r){for(var t=k(0,!0).lab()[0],e=k(1,!0).lab()[0],n=t>e,a=k(r,!0).lab()[0],f=t+(e-t)*r,o=a-f,u=0,c=1,i=20;Math.abs(o)>.01&&i-- >0;)n&&(o*=-1),o<0?(u=r,r+=.5*(c-r)):(c=r,r+=.5*(u-r)),a=k(r,!0).lab()[0],o=a-f;return r}:function(r){return r},_},_.padding=function(r){return null!=r?("number"===c(r)&&(r=[r,r]),u=r,_):u},_.colors=function(t,e){arguments.length<2&&(e="hex");var n=[];if(0===arguments.length)n=l.slice(0);else if(1===t)n=[_(.5)];else if(t>1){var a=f[0],o=f[1]-a;n=function(r,t){for(var e=[],n=ra;n?f++:f--)e.push(f);return e}(0,t).map((function(r){return _(a+r/(t-1)*o)}))}else{r=[];var u=[];if(i&&i.length>2)for(var c=1,s=i.length,h=1<=s;h?cs;h?c++:c--)u.push(.5*(i[c-1]+i[c]));else u=f;n=u.map((function(r){return _(r)}))}return M[e]&&(n=n.map((function(r){return r[e]()}))),n},_.cache=function(r){return null!=r?(v=r,_):v},_.gamma=function(r){return null!=r?(p=r,_):p},_.nodata=function(r){return null!=r?(n=M(r),_):n},_}var mt=function(r,t,e){if(!mt[e])throw new Error("unknown blend mode "+e);return mt[e](r,t)},yt=function(r){return function(t,e){var n=M(e).rgb(),a=M(t).rgb();return M.rgb(r(n,a))}},wt=function(r){return function(t,e){var n=[];return n[0]=r(t[0],e[0]),n[1]=r(t[1],e[1]),n[2]=r(t[2],e[2]),n}};mt.normal=yt(wt((function(r){return 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82655771..12a1c9a7 100644 --- a/docs/src/index.md +++ b/docs/src/index.md @@ -378,12 +378,41 @@ chroma.deltaE('#000000', '#ffffff'); ### chroma.brewer -chroma.brewer is an map of [ColorBrewer scales](http://colorbrewer2.org/) that are included in chroma.js for convenience. chroma.scale uses the colors to construct. +chroma.brewer is an map of [ColorBrewer palettes](http://colorbrewer2.org/) that are included in chroma.js for convenience. chroma.scale uses the colors to construct. ```js chroma.brewer.OrRd ``` +Note that chroma.js only includes the 9-step versions of the palettes (11 steps for the diverging palettes). So, for instance, if you use chroma.js to construct a 5-color palette, they will be different from the "official" 5-color palettes in ColorBrewer (which have lower contrast). + +```js +chroma.scale('RdBu').colors(5); +// offical 5-color RdBu: +['#ca0020', '#f4a582', '#f7f7f7', '#92c5de', '#0571b0'] +``` + +One way to compensate for this would be to "slice off" the extreme colors: + +```js +chroma + .scale(chroma.brewer.RdBu.slice(1,-1)) + .colors(5); +``` + +Of course you can also just construct the scale from the official 5-step colors that you can copy and paste from [colorbrewer2.org](https://colorbrewer2.org/#type=diverging&scheme=RdBu&n=5): + +```js +chroma.scale(['#ca0020', '#f4a582', '#f7f7f7', '#92c5de', '#0571b0']) +``` + +You can access a list of all available palettes via `Object.keys(chroma.brewer)`: + +```js +Object.keys(chroma.brewer) +// ['OrRd', 'PuBu', 'BuPu', 'Oranges', 'BuGn', 'YlOrBr', 'YlGn', 'Reds', 'RdPu', 'Greens', 'YlGnBu', 'Purples', 'GnBu', 'Greys', 'YlOrRd', 'PuRd', 'Blues', 'PuBuGn', 'Viridis', 'Spectral', 'RdYlGn', 'RdBu', 'PiYG', 'PRGn', 'RdYlBu', 'BrBG', 'RdGy', 'PuOr', 'Set2', 'Accent', 'Set1', 'Set3', 'Dark2', 'Paired', 'Pastel2', 'Pastel1'] +``` + ### chroma.limits #### (data, mode, n) diff --git a/src/colors/colorbrewer.js b/src/colors/colorbrewer.js index ba62998c..eaeb9e1f 100644 --- a/src/colors/colorbrewer.js +++ b/src/colors/colorbrewer.js @@ -59,9 +59,23 @@ const colorbrewer = { Pastel1: ['#fbb4ae', '#b3cde3', '#ccebc5', '#decbe4', '#fed9a6', '#ffffcc', '#e5d8bd', '#fddaec', '#f2f2f2'] }; -// add lowercase aliases for case-insensitive matches -for (let key of Object.keys(colorbrewer)) { - colorbrewer[key.toLowerCase()] = colorbrewer[key]; -} +const colorbrewerTypes = Object.keys(colorbrewer); +const typeMap = new Map(colorbrewerTypes.map((key) => [key.toLowerCase(), key])); -export default colorbrewer; +// use Proxy to allow case-insensitive access to palettes +const colorbrewerProxy = + typeof Proxy === 'function' + ? new Proxy(colorbrewer, { + get(target, prop) { + const lower = prop.toLowerCase(); + if (typeMap.has(lower)) { + return target[typeMap.get(lower)]; + } + }, + getOwnPropertyNames() { + return Object.getOwnPropertyNames(colorbrewerTypes); + } + }) + : colorbrewer; + +export default colorbrewerProxy; diff --git a/src/utils/limit.js b/src/utils/limit.js index 2c7550bc..1d9b5314 100644 --- a/src/utils/limit.js +++ b/src/utils/limit.js @@ -1,4 +1,4 @@ -import { min, max } from './index.js'; +const { min, max } = Math; export default (x, low = 0, high = 1) => { return min(max(low, x), high); diff --git a/test/colorbrewer.test.js b/test/colorbrewer.test.js new file mode 100644 index 00000000..6f1fcb6e --- /dev/null +++ b/test/colorbrewer.test.js @@ -0,0 +1,24 @@ +import { describe, it, expect } from 'vitest'; +import chroma from 'chroma-js'; + +describe('ColorBrewer palettes', () => { + it('should have all palettes', () => { + expect(chroma.brewer).toBeDefined(); + expect(Object.keys(chroma.brewer).length).toBe(36); + }); + + it('brewer keys are camel-cased', () => { + expect(Object.keys(chroma.brewer)[0]).toBe('OrRd'); + expect(Object.keys(chroma.brewer)[1]).toBe('PuBu'); + }); + + it('supports case-insensitive access to palettes', () => { + expect(chroma.brewer.RdYlBu).toBeDefined(); + expect(chroma.brewer.rdylbu).toBeDefined(); + expect(chroma.brewer.RdylBU).toBeDefined(); + }); + + it('non existing palettes are still undefined', () => { + expect(chroma.brewer.notHere).toBeUndefined(); + }); +}); diff --git a/test/scales.test.js b/test/scales.test.js index d8d9e2df..80338913 100644 --- a/test/scales.test.js +++ b/test/scales.test.js @@ -126,6 +126,10 @@ describe('Some tests for scale()', () => { it('ends black', () => { expect(f(100).hex()).toBe('#006837'); }); + + it('returns domain', () => { + expect(f.domain()).toEqual([0, 100]); + }); }); describe('colorbrewer scale - lowercase', () => {