git.pond.sub.org Git - eow/blob - static/dojo-release-1.1.1/dojox/color/Colorspace.js

   1 if(!dojo._hasResource["dojox.color.Colorspace"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
   2 dojo._hasResource["dojox.color.Colorspace"] = true;
   3 dojo.provide("dojox.color.Colorspace");
   4 dojo.require("dojox.math.matrix");
   5
   6 dojox.color.Colorspace=new (function(){
   7         var dxc=dojox.color;
   8         var dxm=dojox.math.matrix;
   9         var self=this;
  10         var wpMap={
  11                 "2":{
  12                         "E":    { x:1/3,     y:1/3,     t:5400 },
  13                         "D50":  { x:0.34567, y:0.3585,  t:5000 },
  14                         "D55":  { x:0.33242, y:0.34743, t:5500 },
  15                         "D65":  { x:0.31271, y:0.32902, t:6500 },
  16                         "D75":  { x:0.29902, y:0.31485, t:7500 },
  17                         "A":    { x:0.44757, y:0.40745, t:2856 },
  18                         "B":    { x:0.34842, y:0.35161, t:4874 },
  19                         "C":    { x:0.31006, y:0.31616, t:6774 },
  20                         "9300": { x:0.2848,  y:0.2932,  t:9300 },
  21                         "F2":   { x:0.37207, y:0.37512, t:4200 },
  22                         "F7":   { x:0.31285, y:0.32918, t:6500 },
  23                         "F11":  { x:0.38054, y:0.37691, t:4000 }
  24                 },
  25                 "10":{
  26                         "E":    { x:1/3,     y:1/3,     t:5400 },
  27                         "D50":  { x:0.34773, y:0.35952, t:5000 },
  28                         "D55":  { x:0.33411, y:0.34877, t:5500 },
  29                         "D65":  { x:0.31382, y:0.331,   t:6500 },
  30                         "D75":  { x:0.29968, y:0.3174,  t:7500 },
  31                         "A":    { x:0.45117, y:0.40594, t:2856 },
  32                         "B":    { x:0.3498,  y:0.3527,  t:4874 },
  33                         "C":    { x:0.31039, y:0.31905, t:6774 },
  34                         "F2":   { x:0.37928, y:0.36723, t:4200 },
  35                         "F7":   { x:0.31565, y:0.32951, t:6500 },
  36                         "F11":  { x:0.38543, y:0.3711,  t:4000 }
  37                 }
  38         };
  39
  40         var profiles={
  41                 "Adobe RGB 98":[2.2, "D65", 0.64, 0.33, 0.297361, 0.21, 0.71, 0.627355, 0.15, 0.06, 0.075285],
  42                 "Apple RGB":[1.8, "D65", 0.625, 0.34, 0.244634, 0.28, 0.595, 0.672034, 0.155, 0.07, 0.083332],
  43                 "Best RGB":[2.2, "D50", 0.7347, 0.2653, 0.228457, 0.215, 0.775, 0.737352, 0.13, 0.035, 0.034191],
  44                 "Beta RGB":[2.2, "D50", 0.6888, 0.3112, 0.303273, 0.1986, 0.7551, 0.663786, 0.1265, 0.0352, 0.032941],
  45                 "Bruce RGB":[2.2, "D65", 0.64, 0.33, 0.240995, 0.28, 0.65, 0.683554, 0.15, 0.06, 0.075452],
  46                 "CIE RGB":[2.2, "E", 0.735, 0.265, 0.176204, 0.274, 0.717, 0.812985, 0.167, 0.009, 0.010811],
  47                 "ColorMatch RGB":[1.8, "D50", 0.63, 0.34, 0.274884, 0.295, 0.605, 0.658132, 0.15, 0.075, 0.066985],
  48                 "DON RGB 4":[2.2, "D50", 0.696, 0.3, 0.27835, 0.215, 0.765, 0.68797, 0.13, 0.035, 0.03368],
  49                 "ECI RGB":[1.8, "D50", 0.67, 0.33, 0.32025, 0.21, 0.71, 0.602071, 0.14, 0.08, 0.077679],
  50                 "EktaSpace PS5":[2.2, "D50", 0.695, 0.305, 0.260629, 0.26, 0.7, 0.734946, 0.11, 0.005, 0.004425],
  51                 "NTSC RGB":[2.2, "C", 0.67, 0.33, 0.298839, 0.21, 0.71, 0.586811, 0.14, 0.08, 0.11435],
  52                 "PAL/SECAM RGB":[2.2, "D65", 0.64, 0.33, 0.222021, 0.29, 0.6, 0.706645, 0.15, 0.06, 0.071334],
  53                 "Pro Photo RGB":[1.8, "D50", 0.7347, 0.2653, 0.28804, 0.1596, 0.8404, 0.711874, 0.0366, 0.0001, 0.000086],
  54                 "SMPTE/C RGB":[2.2, "D65", 0.63, 0.34, 0.212395, 0.31, 0.595, 0.701049, 0.155, 0.07, 0.086556],
  55                 "sRGB":[2.2, "D65", 0.64, 0.33, 0.212656, 0.3, 0.6, 0.715158, 0.15, 0.06, 0.072186],
  56                 "Wide Gamut RGB":[2.2, "D50", 0.735, 0.265, 0.258187, 0.115, 0.826, 0.724938, 0.157, 0.018, 0.016875]
  57         };
  58
  59         var adaptors={
  60                 "XYZ scaling":{
  61                         ma:  [[1,0,0], [0,1,0], [0,0,1]],
  62                         mai: [[1,0,0], [0,1,0], [0,0,1]]
  63                 },
  64                 "Bradford":{
  65                         ma:  [[0.8951, -0.7502, 0.0389], [0.2664, 1.7135, -0.0685], [-0.1614, 0.0367, 1.0296]],
  66                         mai: [[0.986993, 0.432305, -0.008529], [-0.147054, 0.51836, 0.040043], [0.159963, 0.049291, 0.968487]]
  67                 },
  68                 "Von Kries":{
  69                         ma:  [[0.40024, -0.2263, 0], [0.7076, 1.16532, 0], [-0.08081, 0.0457, 0.91822]],
  70                         mai: [[1.859936, 0.361191, 0], [-1.129382, 0.638812, 0], [0.219897, -0.000006, 1.089064]]
  71                 }
  72         };
  73
  74         var cMaps={
  75                 "XYZ":{
  76                         "xyY":function(xyz, kwArgs){
  77                                 kwArgs=dojo.mixin({
  78                                         whitepoint:"D65",
  79                                         observer:"10",
  80                                         useApproximation:true
  81                                 }, kwArgs||{});
  82                                 var wp=self.whitepoint(kwArgs.whitepoint, kwArgs.observer);
  83                                 var sum=xyz.X+xyz.Y+xyz.Z;
  84                                 if(sum==0){ var x=wp.x, y=wp.y; }
  85                                 else{ var x=xyz.X/sum, y=xyz.Y/sum; }
  86                                 return { x:x, y:y, Y:xyz.Y };
  87                         },
  88                         "Lab":function(xyz, kwArgs){
  89                                 kwArgs=dojo.mixin({
  90                                         whitepoint:"D65",
  91                                         observer:"10",
  92                                         useApproximation:true
  93                                 }, kwArgs||{});
  94
  95                                 var kappa=self.kappa(kwArgs.useApproximation), epsilon=self.epsilon(kwArgs.useApproximation);
  96                                 var wp=self.whitepoint(kwArgs.whitepoint, kwArgs.observer);
  97                                 var xr=xyz.X/wp.x, yr=xyz.Y/wp.y, zr=xyz.z/wp.z;
  98                                 var fx=(xr>epsilon)?Math.pow(xr,1/3):(kappa*xr+16)/116;
  99                                 var fy=(yr>epsilon)?Math.pow(yr,1/3):(kappa*yr+16)/116;
 100                                 var fz=(zr>epsilon)?Math.pow(zr,1/3):(kappa*zr+16)/116;
 101                                 var L=116*fy-16, a=500*(fx-fy), b=200*(fy-fz);
 102                                 return { L:L, a:a, b:b };
 103                         },
 104                         "Luv": function(xyz, kwArgs){
 105                                 kwArgs=dojo.mixin({
 106                                         whitepoint:"D65",
 107                                         observer:"10",
 108                                         useApproximation:true
 109                                 }, kwArgs||{});
 110
 111                                 var kappa=self.kappa(kwArgs.useApproximation), epsilon=self.epsilon(kwArgs.useApproximation);
 112                                 var wp=self.whitepoint(kwArgs.whitepoint, kwArgs.observer);
 113                                 var ud=(4*xyz.X)/(xyz.X+15*xyz.Y+3*xyz.Z);
 114                                 var vd=(9*xyz.Y)/(xyz.X+15*xyz.Y+3*xyz.Z);
 115                                 var udr=(4*wp.x)/(wp.x+15*wp.y+3*wp.z);
 116                                 var vdr=(9*wp.y)/(wp.x+15*wp.y+3*wp.z);
 117                                 var yr=xyz.Y/wp.y;
 118                                 var L=(yr>epsilon)?116*Math.pow(yr, 1/3)-16:kappa*yr;
 119                                 var u=13*L*(ud-udr);
 120                                 var v=13*L*(vd-vdr);
 121                                 return { L:L, u:u, v:v };
 122                         }
 123                 },
 124                 "xyY":{
 125                         "XYZ":function(xyY){
 126                                 if(xyY.y==0){ var X=0, Y=0, Z=0; }
 127                                 else{
 128                                         var X=(xyY.x*xyY.Y)/xyY.y;
 129                                         var Y=xyY.Y;
 130                                         var Z=((1-xyY.x-xyY.y)*xyY.Y)/xyY.y;
 131                                 }
 132                                 return { X:X, Y:Y, Z:Z };
 133                         }
 134                 },
 135                 "Lab":{
 136                         "XYZ": function(lab, kwArgs){
 137                                 kwArgs=dojo.mixin({
 138                                         whitepoint:"D65",
 139                                         observer:"10",
 140                                         useApproximation:true
 141                                 }, kwArgs||{});
 142
 143                                 var b=kwArgs.useApproximation, kappa=self.kappa(b), epsilon=self.epsilon(b);
 144                                 var wp=self.whitepoint(kwArgs.whitepoint, kwArgs.observer);
 145                                 var yr=(lab.L>(kappa*epsilon))?Math.pow((lab.L+16)/116, 3):lab.L/kappa;
 146                                 var fy=(yr>epsilon)?(lab.L+16)/116:(kappa*yr+16)/116;
 147                                 var fx=(lab.a/500)+fy;
 148                                 var fz=fy-(lab.b/200);
 149                                 var fxcube=Math.pow(fx, 3), fzcube=Math.pow(fz, 3);
 150                                 var xr=(fxcube>epsilon)?fxcube:(116*fx-16)/kappa;
 151                                 var zr=(fzcube>epsilon)?fzcube:(116*fz-16)/kappa;
 152                                 return { X: xr*wp.x, Y: yr*wp.y, Z: zr*wp.z };
 153                         },
 154                         "LCHab": function(lab){
 155                                 var L=lab.L, C=Math.pow(lab.a*lab.a+lab.b*lab.b, 0.5), H=Math.atan(lab.b, lab.a)*(180/Math.PI);
 156                                 if(H<0){ H+=360; }
 157                                 if(H<360){ H-=360; }
 158                                 return { L:L, C:C, H:H };
 159                         }
 160                 },
 161                 "LCHab":{
 162                         "Lab":function(lch){
 163                                 var hRad=lch.H*(Math.PI/180), L=lch.L, a=lch.C/Math.pow(Math.pow(Math.tan(hRad),2)+1, 0.5);
 164                                 if(90<lchH && lch.H<270){ a = -a; }
 165                                 var b=Math.pow(Math.pow(lch.C,2)-Math.pow(a, 2), 0.5);
 166                                 if(lch.H>180){ b = -b; }
 167                                 return { L: L, a:a, b:b };
 168                         }
 169                 },
 170                 "Luv":{
 171                         "XYZ": function(Luv, kwArgs){
 172                                 kwArgs=dojo.mixin({
 173                                         whitepoint:"D65",
 174                                         observer:"10",
 175                                         useApproximation:true
 176                                 }, kwArgs||{});
 177
 178                                 var b=kwArgs.useApproximation, kappa=self.kappa(b), epsilon=self.epsilon(b);
 179                                 var wp=self.whitepoint(kwArgs.whitepoint, kwArgs.observer);
 180                                 var uz=(4*wp.x)/(wp.x+15*wp.y+3*wp.z);
 181                                 var vz=(9*wp.y)/(wp.x+15*wp.y+3*wp.z);
 182                                 var Y=(Luv.L>kappa*epsilon)?Math.pow((Luv.L+16)/116, 3):Luv.L/kappa;
 183                                 var a=(1/3)*(((52*Luv.L)/(Luv.u+13*Luv.L*uz))-1);
 184                                 var b=-5*Y, c=-(1/3), d=Y*(((39*Luv.L)/(Luv.v+13*Luv.L*vz))-5);
 185                                 var X=(d-b)/(a-c), Z=X*a+b;
 186                                 return { X:X, Y:Y, Z:Z };
 187                         },
 188                         "LCHuv": function(Luv){
 189                                 var L=Luv.L, C=Math.pow(Luv.u*Luv.u+Luv.v*Luv*v, 0.5), H=Math.atan(Luv.v, Luv.u)*(180/Math.PI);
 190                                 if(H<0){ H+=360; }
 191                                 if(H>360){ H-=360; }
 192                                 return { L:L, C:C, H:H };
 193                         }
 194                 },
 195                 "LCHuv":{
 196                         "Luv": function(LCH){
 197                                 var hRad=LCH.H*(Math.PI/180);
 198                                 var L=LCH.L, u=LCH.C/Math.pow(Math.pow(Math.tan(hRad),2)+1, 0.5);
 199                                 var v=Math.pow(LCH.C*LCH.C-u*u, 0.5);
 200                                 if(90<LCH.H && LCH.H>270){ u*=-1; }
 201                                 if(LCH.H>180){ v*=-1; }
 202                                 return { L:L, u:u, v:v };
 203                         }
 204                 }
 205         };
 206         var converters={
 207                 "CMY":{
 208                         "CMYK":function(obj, kwArgs){ return dxc.fromCmy(obj).toCmyk(); },
 209                         "HSL":function(obj, kwArgs){ return dxc.fromCmy(obj).toHsl(); },
 210                         "HSV":function(obj, kwArgs){ return dxc.fromCmy(obj).toHsv(); },
 211                         "Lab":function(obj, kwArgs){ return cMaps["XYZ"]["Lab"](dxc.fromCmy(obj).toXYZ(kwArgs)); },
 212                         "LCHab":function(obj, kwArgs){ return cMaps["Lab"]["LCHab"](converters["CMY"]["Lab"](obj)); },
 213                         "LCHuv":function(obj, kwArgs){ return cMaps["LCHuv"]["Luv"](cMaps["Luv"]["XYZ"](dxc.fromCmy(obj).toXYZ(kwArgs))); },
 214                         "Luv":function(obj, kwArgs){ return cMaps["Luv"]["XYZ"](dxc.fromCmy(obj).toXYZ(kwArgs)); },
 215                         "RGB":function(obj, kwArgs){ return dxc.fromCmy(obj); },
 216                         "XYZ":function(obj, kwArgs){ return dxc.fromCmy(obj).toXYZ(kwArgs); },
 217                         "xyY":function(obj, kwArgs){ return cMaps["XYZ"]["xyY"](dxc.fromCmy(obj).toXYZ(kwArgs)); }
 218                 },
 219                 "CMYK":{
 220                         "CMY":function(obj, kwArgs){ return dxc.fromCmyk(obj).toCmy(); },
 221                         "HSL":function(obj, kwArgs){ return dxc.fromCmyk(obj).toHsl(); },
 222                         "HSV":function(obj, kwArgs){ return dxc.fromCmyk(obj).toHsv(); },
 223                         "Lab":function(obj, kwArgs){ return cMaps["XYZ"]["Lab"](dxc.fromCmyk(obj).toXYZ(kwArgs)); },
 224                         "LCHab":function(obj, kwArgs){ return cMaps["Lab"]["LCHab"](converters["CMYK"]["Lab"](obj)); },
 225                         "LCHuv":function(obj, kwArgs){ return cMaps["LCHuv"]["Luv"](cMaps["Luv"]["XYZ"](dxc.fromCmyk(obj).toXYZ(kwArgs))); },
 226                         "Luv":function(obj, kwArgs){ return cMaps["Luv"]["XYZ"](dxc.fromCmyk(obj).toXYZ(kwArgs)); },
 227                         "RGB":function(obj, kwArgs){ return dxc.fromCmyk(obj); },
 228                         "XYZ":function(obj, kwArgs){ return dxc.fromCmyk(obj).toXYZ(kwArgs); },
 229                         "xyY":function(obj, kwArgs){ return cMaps["XYZ"]["xyY"](dxc.fromCmyk(obj).toXYZ(kwArgs)); }
 230                 },
 231                 "HSL":{
 232                         "CMY":function(obj, kwArgs){ return dxc.fromHsl(obj).toCmy(); },
 233                         "CMYK":function(obj, kwArgs){ return dxc.fromHsl(obj).toCmyk(); },
 234                         "HSV":function(obj, kwArgs){ return dxc.fromHsl(obj).toHsv(); },
 235                         "Lab":function(obj, kwArgs){ return cMaps["XYZ"]["Lab"](dxc.fromHsl(obj).toXYZ(kwArgs)); },
 236                         "LCHab":function(obj, kwArgs){ return cMaps["Lab"]["LCHab"](converters["CMYK"]["Lab"](obj)); },
 237                         "LCHuv":function(obj, kwArgs){ return cMaps["LCHuv"]["Luv"](cMaps["Luv"]["XYZ"](dxc.fromHsl(obj).toXYZ(kwArgs))); },
 238                         "Luv":function(obj, kwArgs){ return cMaps["Luv"]["XYZ"](dxc.fromHsl(obj).toXYZ(kwArgs)); },
 239                         "RGB":function(obj, kwArgs){ return dxc.fromHsl(obj); },
 240                         "XYZ":function(obj, kwArgs){ return dxc.fromHsl(obj).toXYZ(kwArgs); },
 241                         "xyY":function(obj, kwArgs){ return cMaps["XYZ"]["xyY"](dxc.fromHsl(obj).toXYZ(kwArgs)); }
 242                 },
 243                 "HSV":{
 244                         "CMY":function(obj, kwArgs){ return dxc.fromHsv(obj).toCmy(); },
 245                         "CMYK":function(obj, kwArgs){ return dxc.fromHsv(obj).toCmyk(); },
 246                         "HSL":function(obj, kwArgs){ return dxc.fromHsv(obj).toHsl(); },
 247                         "Lab":function(obj, kwArgs){ return cMaps["XYZ"]["Lab"](dxc.fromHsv(obj).toXYZ(kwArgs)); },
 248                         "LCHab":function(obj, kwArgs){ return cMaps["Lab"]["LCHab"](converters["CMYK"]["Lab"](obj)); },
 249                         "LCHuv":function(obj, kwArgs){ return cMaps["LCHuv"]["Luv"](cMaps["Luv"]["XYZ"](dxc.fromHsv(obj).toXYZ(kwArgs))); },
 250                         "Luv":function(obj, kwArgs){ return cMaps["Luv"]["XYZ"](dxc.fromHsv(obj).toXYZ(kwArgs)); },
 251                         "RGB":function(obj, kwArgs){ return dxc.fromHsv(obj); },
 252                         "XYZ":function(obj, kwArgs){ return dxc.fromHsv(obj).toXYZ(kwArgs); },
 253                         "xyY":function(obj, kwArgs){ return cMaps["XYZ"]["xyY"](dxc.fromHsv(obj).toXYZ(kwArgs)); }
 254                 },
 255                 "Lab":{
 256                         "CMY":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Lab"]["XYZ"](obj, kwArgs)).toCmy(); },
 257                         "CMYK":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Lab"]["XYZ"](obj, kwArgs)).toCmyk(); },
 258                         "HSL":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Lab"]["XYZ"](obj, kwArgs)).toHsl(); },
 259                         "HSV":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Lab"]["XYZ"](obj, kwArgs)).toHsv(); },
 260                         "LCHab":function(obj, kwArgs){ return cMaps["Lab"]["LCHab"](obj, kwArgs); },
 261                         "LCHuv":function(obj, kwArgs){ return cMaps["Luv"]["LCHuv"](cMaps["Lab"]["XYZ"](obj, kwArgs), kwArgs); },
 262                         "Luv":function(obj, kwArgs){ return cMaps["XYZ"]["Luv"](cMaps["Lab"]["XYZ"](obj, kwArgs), kwArgs); },
 263                         "RGB":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Lab"]["XYZ"](obj, kwArgs)); },
 264                         "XYZ":function(obj, kwArgs){ return cMaps["Lab"]["XYZ"](obj, kwArgs); },
 265                         "xyY":function(obj, kwArgs){ return cMaps["XYZ"]["xyY"](cMaps["Lab"]["XYZ"](obj, kwArgs), kwArgs); }
 266                 },
 267                 "LCHab":{
 268                         "CMY":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Lab"]["XYZ"](cMaps["LCHab"]["Lab"](obj), kwArgs), kwArgs).toCmy(); },
 269                         "CMYK":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Lab"]["XYZ"](cMaps["LCHab"]["Lab"](obj), kwArgs), kwArgs).toCmyk(); },
 270                         "HSL":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Lab"]["XYZ"](cMaps["LCHab"]["Lab"](obj), kwArgs), kwArgs).toHsl(); },
 271                         "HSV":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Lab"]["XYZ"](cMaps["LCHab"]["Lab"](obj), kwArgs), kwArgs).toHsv(); },
 272                         "Lab":function(obj, kwArgs){ return cMaps["Lab"]["LCHab"](obj, kwArgs); },
 273                         "LCHuv":function(obj, kwArgs){ return cMaps["Luv"]["LCHuv"](cMaps["XYZ"]["Luv"](cMaps["Lab"]["XYZ"](cMaps["LCHab"]["Lab"](obj), kwArgs), kwArgs), kwArgs);},
 274                         "Luv":function(obj, kwArgs){ return cMaps["XYZ"]["Luv"](cMaps["Lab"]["XYZ"](cMaps["LCHab"]["Lab"](obj), kwArgs), kwArgs);},
 275                         "RGB":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Lab"]["XYZ"](cMaps["LCHab"]["Lab"](obj), kwArgs), kwArgs); },
 276                         "XYZ":function(obj, kwArgs){ return cMaps["Lab"]["XYZ"](cMaps["LCHab"]["Lab"](obj, kwArgs), kwArgs); },
 277                         "xyY":function(obj, kwArgs){ return cMaps["XYZ"]["xyY"](cMaps["Lab"]["XYZ"](cMaps["LCHab"]["Lab"](obj), kwArgs), kwArgs); }
 278                 },
 279                 "LCHuv":{
 280                         "CMY":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Luv"]["XYZ"](cMaps["LCHuv"]["Luv"](obj), kwArgs), kwArgs).toCmy(); },
 281                         "CMYK":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Luv"]["XYZ"](cMaps["LCHuv"]["Luv"](obj), kwArgs), kwArgs).toCmyk(); },
 282                         "HSL":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Luv"]["XYZ"](cMaps["LCHuv"]["Luv"](obj), kwArgs), kwArgs).toHsl(); },
 283                         "HSV":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Luv"]["XYZ"](cMaps["LCHuv"]["Luv"](obj), kwArgs), kwArgs).toHsv(); },
 284                         "Lab":function(obj, kwArgs){ return cMaps["XYZ"]["Lab"](cMaps["Luv"]["XYZ"](cMaps["LCHuv"]["Luv"](obj), kwArgs), kwArgs); },
 285                         "LCHab":function(obj, kwArgs){ return cMaps["Lab"]["LCHab"](cMaps["XYZ"]["Lab"](cMaps["Luv"]["XYZ"](cMaps["LCHuv"]["Luv"](obj), kwArgs), kwArgs), kwArgs); },
 286                         "Luv":function(obj, kwArgs){ return cMaps["LCHuv"]["Luv"](obj, kwArgs); },
 287                         "RGB":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Luv"]["XYZ"](cMaps["LCHuv"]["Luv"](obj), kwArgs), kwArgs); },
 288                         "XYZ":function(obj, kwArgs){ return cMaps["Luv"]["XYZ"](cMaps["LCHuv"]["Luv"](obj), kwArgs); },
 289                         "xyY":function(obj, kwArgs){ return cMaps["XYZ"]["xyY"](cMaps["Luv"]["XYZ"](cMaps["LCHuv"]["Luv"](obj), kwArgs), kwArgs); },
 290                 },
 291                 "Luv":{
 292                         "CMY":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs).toCmy(); },
 293                         "CMYK":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs).toCmyk(); },
 294                         "HSL":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs).toHsl(); },
 295                         "HSV":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs).toHsv(); },
 296                         "Lab":function(obj, kwArgs){ return cMaps["XYZ"]["Lab"](cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs); },
 297                         "LCHab":function(obj, kwArgs){ return cMaps["Lab"]["LCHab"](cMaps["XYZ"]["Lab"](cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs), kwArgs); },
 298                         "LCHuv":function(obj, kwArgs){ return cMaps["Luv"]["LCHuv"](obj, kwArgs); },
 299                         "RGB":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs); },
 300                         "XYZ":function(obj, kwArgs){ return cMaps["Luv"]["XYZ"](obj, kwArgs); },
 301                         "xyY":function(obj, kwArgs){ return cMaps["XYZ"]["xyY"](cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs); },
 302                 },
 303                 "RGB":{
 304                         "CMY":function(obj, kwArgs){ return obj.toCmy(); },
 305                         "CMYK":function(obj, kwArgs){ return obj.toCmyk(); },
 306                         "HSL":function(obj, kwArgs){ return obj.toHsl(); },
 307                         "HSV":function(obj, kwArgs){ return obj.toHsv(); },
 308                         "Lab":function(obj, kwArgs){ return cMaps["XYZ"]["Lab"](obj.toXYZ(kwArgs), kwArgs); },
 309                         "LCHab":function(obj, kwArgs){ return cMaps["LCHab"]["Lab"](cMaps["XYZ"]["Lab"](obj.toXYZ(kwArgs), kwArgs), kwArgs);},
 310                         "LCHuv":function(obj, kwArgs){ return cMaps["LCHuv"]["Luv"](cMaps["XYZ"]["Luv"](obj.toXYZ(kwArgs), kwArgs), kwArgs);},
 311                         "Luv":function(obj, kwArgs){ return cMaps["XYZ"]["Luv"](obj.toXYZ(kwArgs), kwArgs); },
 312                         "XYZ":function(obj, kwArgs){ return obj.toXYZ(kwArgs); },
 313                         "xyY":function(obj, kwArgs){ return cMaps["XYZ"]["xyY"](obj.toXYZ(kwArgs), kwArgs); }
 314                 },
 315                 "XYZ":{
 316                         "CMY":function(obj, kwArgs){ return dxc.fromXYZ(obj, kwArgs).toCmy(); },
 317                         "CMYK":function(obj, kwArgs){ return dxc.fromXYZ(obj, kwArgs).toCmyk(); },
 318                         "HSL":function(obj, kwArgs){ return dxc.fromXYZ(obj, kwArgs).toHsl(); },
 319                         "HSV":function(obj, kwArgs){ return dxc.fromXYZ(obj, kwArgs).toHsv(); },
 320                         "Lab":function(obj, kwArgs){ return cMaps["XYZ"]["Lab"](obj, kwArgs); },
 321                         "LCHab":function(obj, kwArgs){ return cMaps["Lab"]["LCHab"](cMaps["XYZ"]["Lab"](obj, kwArgs), kwArgs); },
 322                         "LCHuv":function(obj, kwArgs){ return cMaps["Luv"]["LCHuv"](cMaps["XYZ"]["Luv"](obj, kwArgs), kwArgs); },
 323                         "Luv":function(obj, kwArgs){ return cMaps["XYZ"]["Luv"](obj, kwArgs); },
 324                         "RGB":function(obj, kwArgs){ return dxc.fromXYZ(obj, kwArgs); },
 325                         "xyY":function(obj, kwArgs){ return cMaps["XYZ"]["xyY"](dxc.fromXYZ(obj, kwArgs), kwArgs); }
 326                 },
 327                 // TODO: revisit this. xyY represents a single color, not a spectrum of colors.
 328                 "xyY":{
 329                         "CMY":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs).toCmy(); },
 330                         "CMYK":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs).toCmyk(); },
 331                         "HSL":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs).toHsl(); },
 332                         "HSV":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs).toHsv(); },
 333                         "Lab":function(obj, kwArgs){ return cMaps["Lab"]["XYZ"](cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs); },
 334                         "LCHab":function(obj, kwArgs){ return cMaps["LCHab"]["Lab"](cMaps["Lab"]["XYZ"](cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs), kwArgs); },
 335                         "LCHuv":function(obj, kwArgs){ return cMaps["LCHuv"]["Luv"](cMaps["Luv"]["XYZ"](cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs), kwArgs); },
 336                         "Luv":function(obj, kwArgs){ return cMaps["Luv"]["XYZ"](cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs); },
 337                         "RGB":function(obj, kwArgs){ return dxc.fromXYZ(cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs); },
 338                         "XYZ":function(obj, kwArgs){ return cMaps["xyY"]["XYZ"](obj, kwArgs); }
 339                 }
 340         };
 341
 342         this.whitepoint=function(/* String */wpName, /* String? */observer){
 343                 observer=observer||"10";
 344                 var x=0, y=0, t=0;
 345                 if(wpMap[observer] && wpMap[observer][wpName]){
 346                         x=wpMap[observer][wpName].x;
 347                         y=wpMap[observer][wpName].y;
 348                         t=wpMap[observer][wpName].t;
 349                 } else {
 350                         console.warn(
 351                                 "dojox.color.Colorspace::whitepoint: either the observer or the whitepoint name was not found. ",
 352                                 observer, wpName
 353                         );
 354                 }
 355                 var wp={ x:x, y:y, z:(1-x-y), t:t, Y:1 };
 356                 return this.convert(wp, "xyY", "XYZ");
 357         };
 358
 359         this.tempToWhitepoint=function(/* Number */t){
 360                 if(t<4000){
 361                         console.warn("dojox.color.Colorspace::tempToWhitepoint: can't find a white point for temperatures less than 4000K. (Passed ", t, ").");
 362                         return { x:0, y:0 };
 363                 }
 364                 if(t>25000){
 365                         console.warn("dojox.color.Colorspace::tempToWhitepoint: can't find a white point for temperatures greater than 25000K. (Passed ", t, ").");
 366                         return { x:0, y:0 };
 367                 }
 368                 var t1=t, t2=t*t, t3=t2*t;
 369                 var ten9=Math.pow(10, 9), ten6=Math.pow(10, 6), ten3=Math.pow(10,3);
 370                 if(t<=7000){
 371                         var x=(-4.607*ten9/t3)+(2.9678*ten6/t2)+(0.09911*ten3/t)+0.2444063;
 372                 } else {
 373                         var x=(-2.0064*ten9/t3)+(1.9018*ten6/t2)+(0.24748*ten3/t)+0.23704;
 374                 }
 375                 var y=-3*x*x+2.87*x-0.275;
 376                 return { x:x, y:y };
 377         };
 378
 379         this.primaries=function(/* Object */kwArgs){
 380                 //      mix in the defaults.
 381                 kwArgs=dojo.mixin({
 382                         profile:"sRGB",
 383                         whitepoint:"D65",
 384                         observer:"10",
 385                         adaptor:"Bradford"
 386                 }, kwArgs||{});
 387
 388                 var m=[];
 389                 if(profiles[kwArgs.profile]){
 390                         m=profiles[kwArgs.profile].slice(0);
 391                 } else {
 392                         console.warn(
 393                                 "dojox.color.Colorspace::primaries: the passed profile was not found.  ",
 394                                 "Available profiles include: ", profiles,
 395                                 ".  The profile passed was ", kwArgs.profile
 396                         );
 397                 }
 398                 var primary={
 399                         name:kwArgs.profile,
 400                         gamma:m[0], whitepoint:m[1],
 401                         xr:m[2], yr:m[3], Yr:m[4],
 402                         xg:m[5], yg:m[6], Yg:m[7],
 403                         xb:m[8], yb:m[9], Yb:m[10]
 404                 };
 405
 406                 //      convert for the whitepoint
 407                 if(kwArgs.whitepoint!=primary.whitepoint){
 408                         var r=this.convert(
 409                                 this.adapt({
 410                                         color:this.convert({ x:xr, y:yr, Y:Yr }, "xyY", "XYZ"),
 411                                         adaptor:kwArgs.adaptor,
 412                                         source:primary.whitepoint,
 413                                         destination:kwArgs.whitepoint
 414                                 }),
 415                                 "XYZ",
 416                                 "xyY"
 417                         );
 418                         var g=this.convert(
 419                                 this.adapt({
 420                                         color:this.convert({ x:xg, y:yg, Y:Yg }, "xyY", "XYZ"),
 421                                         adaptor:kwArgs.adaptor,
 422                                         source:primary.whitepoint,
 423                                         destination:kwArgs.whitepoint
 424                                 }),
 425                                 "XYZ",
 426                                 "xyY"
 427                         );
 428                         var b=this.convert(
 429                                 this.adapt({
 430                                         color:this.convert({ x:xb, y:yb, Y:Yb }, "xyY", "XYZ"),
 431                                         adaptor:kwArgs.adaptor,
 432                                         source:primary.whitepoint,
 433                                         destination:kwArgs.whitepoint
 434                                 }),
 435                                 "XYZ",
 436                                 "xyY"
 437                         );
 438                         primary=dojo.mixin(primary, {
 439                                 xr: r.x, yr: r.y, Yr: r.Y,
 440                                 xg: g.x, yg: g.y, Yg: g.Y,
 441                                 xb: b.x, yb: b.y, Yb: b.Y,
 442                                 whitepoint: kwArgs.whitepoint
 443                         });
 444                 }
 445                 return dojo.mixin(primary, {
 446                         zr: 1-primary.xr-primary.yr,
 447                         zg: 1-primary.xg-primary.yg,
 448                         zb: 1-primary.xb-primary.yb
 449                 });             //      Object
 450         };
 451
 452         this.adapt=function(/* Object */kwArgs){
 453                 //      color is required in the form of XYZ, source whitepoint name is required.
 454                 if(!kwArgs.color || !kwArgs.source){
 455                         console.error("dojox.color.Colorspace::adapt: color and source arguments are required. ", kwArgs);
 456                 }
 457
 458                 //      defaults
 459                 kwArgs=dojo.mixin({
 460                         adaptor:"Bradford",
 461                         destination:"D65"
 462                 }, kwArgs);
 463
 464                 //      adapt
 465                 var swp = this.whitepoint(kwArgs.source);
 466                 var dwp = this.whitepoint(kwArgs.destination);
 467                 if(adaptors[kwArgs.adaptor]){
 468                         var ma=adaptors[kwArgs.adaptor].ma;
 469                         var mai=adaptors[kwArgs.adaptor].mai;
 470                 }else{
 471                         console.warn("dojox.color.Colorspace::adapt: the passed adaptor '", kwArgs.adaptor, "' was not found.");
 472                 }
 473                 var dSrc=dxm.multiply([[swp.x, swp.y, swp.z]], ma);
 474                 var dDest=dxm.multiply([[dwp.x, dwp.y, dwp.z]], ma);
 475                 var center=[
 476                         [dDest[0][0]/dSrc[0][0], 0, 0],
 477                         [0, dDest[0][1]/dSrc[0][1], 0],
 478                         [0, 0, dDest[0][2]/dSrc[0][2]]
 479                 ];
 480                 var m=dxm.multiply(dxm.multiply(ma, center), mai);
 481                 var r=dxm.multiply([[ kwArgs.color.X, kwArgs.color.Y, kwArgs.color.Z ]], m)[0];
 482                 return { X:r[0], Y:r[1], Z:r[2] };
 483         };
 484
 485         this.matrix=function(/* String */to, /* Object */primary){
 486                 var wp=this.whitepoint(primary.whitepoint);
 487                 var Xr = p.xr/p.yr, Yr = 1, Zr = (1-p.xr-p.yr)/p.yr;
 488                 var Xg = p.xg/p.yg, Yg = 1, Zg = (1-p.xg-p.yg)/p.yg;
 489                 var Xb = p.xb/p.yb, Yb = 1, Zr = (1-p.xb-p.yb)/p.yb;
 490
 491                 var m1 = [[ Xr, Yr, Zr ], [ Xg, Yg, Zg ], [ Xb, Yb, Zb ]];
 492                 var m2 = [[ wp.X, wp.Y, wp.Z ]];
 493                 var sm = dojox.math.matrix.multiply(m2, dojox.math.matrix.inverse(m1));
 494                 var Sr = sm[0][0], Sg = sm[0][1], Sb = sm[0][2];
 495                 var result=[
 496                         [Sr*Xr, Sr*Yr, Sr*Zr],
 497                         [Sg*Xg, Sg*Yg, Sg*Zg],
 498                         [Sb*Xb, Sb*Yb, Sb*Zb]
 499                 ];
 500                 if(to=="RGB"){ return dojox.math.inverse(result); }
 501                 return result;
 502         };
 503
 504         this.epsilon=function(/* bool? */useApprox){
 505                 return (useApprox || typeof(useApprox)=="undefined")? 0.008856: 216/24289;
 506         };
 507         this.kappa=function(/* bool? */useApprox){
 508                 return (useApprox || typeof(useApprox)=="undefined")? 903.3: 24389/27;
 509         };
 510
 511         this.convert=function(/* Object */color, /* string */from, /* string */to, /* Object? */kwArgs){
 512                 if(converters[from] && converters[from][to]){
 513                         return converters[from][to](obj, kwArgs);
 514                 }
 515                 console.warn("dojox.color.Colorspace::convert: Can't convert ", color, " from ", from, " to ", to, ".");
 516         };
 517 })();
 518
 519 //      More dojox.color and dojox.color.Color extensions
 520 dojo.mixin(dojox.color, {
 521         fromXYZ: function(/* Object */xyz, /* Object?*/kwArgs){
 522                 kwArgs=kwArgs||{};
 523                 var p=dojox.color.Colorspace.primaries(kwArgs);
 524                 var m=dojox.color.Colorspace.matrix("RGB", p);
 525                 var rgb=dojox.math.matrix.mutliply([[ xyz.X, xyz.Y, xyz.Z ]], m);
 526                 var r=rgb[0][0], g=rgb[0][1], b=rgb[0][2];
 527                 if(p.profile=="sRGB"){
 528                         var R = (r>0.0031308)?(1.055*Math.pow(r, 1/2.4))-0.055: 12.92*r;
 529                         var G = (g>0.0031308)?(1.055*Math.pow(g, 1/2.4))-0.055: 12.92*g;
 530                         var B = (b>0.0031308)?(1.055*Math.pow(b, 1/2.4))-0.055: 12.92*b;
 531                 }else{
 532                         var R=Math.pow(r, 1/p.gamma), G=Math.pow(g, 1/p.gamma), B=Math.pow(b, 1/p.gamma);
 533                 }
 534                 return new dojox.color.Color({ r:Math.floor(R*255), g:Math.floor(G*255), b:Math.floor(B*255) });
 535         }
 536 });
 537
 538 dojo.extend(dojox.color.Color, {
 539         toXYZ: function(/* Object */kwArgs){
 540                 kwArgs=kwArgs||{};
 541                 var p=dojox.color.Colorspace.primaries(kwArgs);
 542                 var m=dojox.color.Colorspace.matrix("XYZ", p);
 543                 var _r=this.r/255, _g=this.g/255, _b=this.b/255;
 544                 if(p.profile=="sRGB"){
 545                         var r=(_r>0.04045) ? Math.pow(((_r+0.055)/1.055), 2.4):_r/12.92;
 546                         var g=(_g>0.04045) ? Math.pow(((_g+0.055)/1.055), 2.4):_g/12.92;
 547                         var b=(_b>0.04045) ? Math.pow(((_b+0.055)/1.055), 2.4):_b/12.92;
 548                 } else {
 549                         var r=Math.pow(_r, p.gamma), g=Math.pow(_g, p.gamma), b=Math.pow(_b, p.gamma);
 550                 }
 551                 var xyz=dojox.math.matrix([[ r, g, b ]], m);
 552                 return { X: xyz[0][0], Y: xyz[0][1], Z: xyz[0][2] };    //      Object
 553         }
 554 });
 555
 556 }