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2150 mathias 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 
}