GZ/nwyj/.svn/pristine/fd/fdc0ab7f7b0f5ddab418a95597edecc71a4f91d1.svn-base

if (!dojo._hasResource["dojox.color.Colorspace"]) { // _hasResource checks added
													// by build. Do not use
													// _hasResource directly in
													// your code.
	dojo._hasResource["dojox.color.Colorspace"] = true;
	dojo.provide("dojox.color.Colorspace");
	dojo.require("dojox.math.matrix");

	dojox.color.Colorspace = new (function() {
		var dxc = dojox.color;
		var dxm = dojox.math.matrix;
		var self = this;
		var wpMap = {
			"2" : {
				"E" : {
					x : 1 / 3,
					y : 1 / 3,
					t : 5400
				},
				"D50" : {
					x : 0.34567,
					y : 0.3585,
					t : 5000
				},
				"D55" : {
					x : 0.33242,
					y : 0.34743,
					t : 5500
				},
				"D65" : {
					x : 0.31271,
					y : 0.32902,
					t : 6500
				},
				"D75" : {
					x : 0.29902,
					y : 0.31485,
					t : 7500
				},
				"A" : {
					x : 0.44757,
					y : 0.40745,
					t : 2856
				},
				"B" : {
					x : 0.34842,
					y : 0.35161,
					t : 4874
				},
				"C" : {
					x : 0.31006,
					y : 0.31616,
					t : 6774
				},
				"9300" : {
					x : 0.2848,
					y : 0.2932,
					t : 9300
				},
				"F2" : {
					x : 0.37207,
					y : 0.37512,
					t : 4200
				},
				"F7" : {
					x : 0.31285,
					y : 0.32918,
					t : 6500
				},
				"F11" : {
					x : 0.38054,
					y : 0.37691,
					t : 4000
				}
			},
			"10" : {
				"E" : {
					x : 1 / 3,
					y : 1 / 3,
					t : 5400
				},
				"D50" : {
					x : 0.34773,
					y : 0.35952,
					t : 5000
				},
				"D55" : {
					x : 0.33411,
					y : 0.34877,
					t : 5500
				},
				"D65" : {
					x : 0.31382,
					y : 0.331,
					t : 6500
				},
				"D75" : {
					x : 0.29968,
					y : 0.3174,
					t : 7500
				},
				"A" : {
					x : 0.45117,
					y : 0.40594,
					t : 2856
				},
				"B" : {
					x : 0.3498,
					y : 0.3527,
					t : 4874
				},
				"C" : {
					x : 0.31039,
					y : 0.31905,
					t : 6774
				},
				"F2" : {
					x : 0.37928,
					y : 0.36723,
					t : 4200
				},
				"F7" : {
					x : 0.31565,
					y : 0.32951,
					t : 6500
				},
				"F11" : {
					x : 0.38543,
					y : 0.3711,
					t : 4000
				}
			}
		};

		var profiles = {
			"Adobe RGB 98" : [2.2, "D65", 0.64, 0.33, 0.297361, 0.21, 0.71,
					0.627355, 0.15, 0.06, 0.075285],
			"Apple RGB" : [1.8, "D65", 0.625, 0.34, 0.244634, 0.28, 0.595,
					0.672034, 0.155, 0.07, 0.083332],
			"Best RGB" : [2.2, "D50", 0.7347, 0.2653, 0.228457, 0.215, 0.775,
					0.737352, 0.13, 0.035, 0.034191],
			"Beta RGB" : [2.2, "D50", 0.6888, 0.3112, 0.303273, 0.1986, 0.7551,
					0.663786, 0.1265, 0.0352, 0.032941],
			"Bruce RGB" : [2.2, "D65", 0.64, 0.33, 0.240995, 0.28, 0.65,
					0.683554, 0.15, 0.06, 0.075452],
			"CIE RGB" : [2.2, "E", 0.735, 0.265, 0.176204, 0.274, 0.717,
					0.812985, 0.167, 0.009, 0.010811],
			"ColorMatch RGB" : [1.8, "D50", 0.63, 0.34, 0.274884, 0.295, 0.605,
					0.658132, 0.15, 0.075, 0.066985],
			"DON RGB 4" : [2.2, "D50", 0.696, 0.3, 0.27835, 0.215, 0.765,
					0.68797, 0.13, 0.035, 0.03368],
			"ECI RGB" : [1.8, "D50", 0.67, 0.33, 0.32025, 0.21, 0.71, 0.602071,
					0.14, 0.08, 0.077679],
			"EktaSpace PS5" : [2.2, "D50", 0.695, 0.305, 0.260629, 0.26, 0.7,
					0.734946, 0.11, 0.005, 0.004425],
			"NTSC RGB" : [2.2, "C", 0.67, 0.33, 0.298839, 0.21, 0.71, 0.586811,
					0.14, 0.08, 0.11435],
			"PAL/SECAM RGB" : [2.2, "D65", 0.64, 0.33, 0.222021, 0.29, 0.6,
					0.706645, 0.15, 0.06, 0.071334],
			"Pro Photo RGB" : [1.8, "D50", 0.7347, 0.2653, 0.28804, 0.1596,
					0.8404, 0.711874, 0.0366, 0.0001, 0.000086],
			"SMPTE/C RGB" : [2.2, "D65", 0.63, 0.34, 0.212395, 0.31, 0.595,
					0.701049, 0.155, 0.07, 0.086556],
			"sRGB" : [2.2, "D65", 0.64, 0.33, 0.212656, 0.3, 0.6, 0.715158,
					0.15, 0.06, 0.072186],
			"Wide Gamut RGB" : [2.2, "D50", 0.735, 0.265, 0.258187, 0.115,
					0.826, 0.724938, 0.157, 0.018, 0.016875]
		};

		var adaptors = {
			"XYZ scaling" : {
				ma : [[1, 0, 0], [0, 1, 0], [0, 0, 1]],
				mai : [[1, 0, 0], [0, 1, 0], [0, 0, 1]]
			},
			"Bradford" : {
				ma : [[0.8951, -0.7502, 0.0389], [0.2664, 1.7135, -0.0685],
						[-0.1614, 0.0367, 1.0296]],
				mai : [[0.986993, 0.432305, -0.008529],
						[-0.147054, 0.51836, 0.040043],
						[0.159963, 0.049291, 0.968487]]
			},
			"Von Kries" : {
				ma : [[0.40024, -0.2263, 0], [0.7076, 1.16532, 0],
						[-0.08081, 0.0457, 0.91822]],
				mai : [[1.859936, 0.361191, 0], [-1.129382, 0.638812, 0],
						[0.219897, -0.000006, 1.089064]]
			}
		};

		var cMaps = {
			"XYZ" : {
				"xyY" : function(xyz, kwArgs) {
					kwArgs = dojo.mixin({
								whitepoint : "D65",
								observer : "10",
								useApproximation : true
							}, kwArgs || {});
					var wp = self
							.whitepoint(kwArgs.whitepoint, kwArgs.observer);
					var sum = xyz.X + xyz.Y + xyz.Z;
					if (sum == 0) {
						var x = wp.x, y = wp.y;
					} else {
						var x = xyz.X / sum, y = xyz.Y / sum;
					}
					return {
						x : x,
						y : y,
						Y : xyz.Y
					};
				},
				"Lab" : function(xyz, kwArgs) {
					kwArgs = dojo.mixin({
								whitepoint : "D65",
								observer : "10",
								useApproximation : true
							}, kwArgs || {});

					var kappa = self.kappa(kwArgs.useApproximation), epsilon = self
							.epsilon(kwArgs.useApproximation);
					var wp = self
							.whitepoint(kwArgs.whitepoint, kwArgs.observer);
					var xr = xyz.X / wp.x, yr = xyz.Y / wp.y, zr = xyz.z / wp.z;
					var fx = (xr > epsilon)
							? Math.pow(xr, 1 / 3)
							: (kappa * xr + 16) / 116;
					var fy = (yr > epsilon)
							? Math.pow(yr, 1 / 3)
							: (kappa * yr + 16) / 116;
					var fz = (zr > epsilon)
							? Math.pow(zr, 1 / 3)
							: (kappa * zr + 16) / 116;
					var L = 116 * fy - 16, a = 500 * (fx - fy), b = 200
							* (fy - fz);
					return {
						L : L,
						a : a,
						b : b
					};
				},
				"Luv" : function(xyz, kwArgs) {
					kwArgs = dojo.mixin({
								whitepoint : "D65",
								observer : "10",
								useApproximation : true
							}, kwArgs || {});

					var kappa = self.kappa(kwArgs.useApproximation), epsilon = self
							.epsilon(kwArgs.useApproximation);
					var wp = self
							.whitepoint(kwArgs.whitepoint, kwArgs.observer);
					var ud = (4 * xyz.X) / (xyz.X + 15 * xyz.Y + 3 * xyz.Z);
					var vd = (9 * xyz.Y) / (xyz.X + 15 * xyz.Y + 3 * xyz.Z);
					var udr = (4 * wp.x) / (wp.x + 15 * wp.y + 3 * wp.z);
					var vdr = (9 * wp.y) / (wp.x + 15 * wp.y + 3 * wp.z);
					var yr = xyz.Y / wp.y;
					var L = (yr > epsilon)
							? 116 * Math.pow(yr, 1 / 3) - 16
							: kappa * yr;
					var u = 13 * L * (ud - udr);
					var v = 13 * L * (vd - vdr);
					return {
						L : L,
						u : u,
						v : v
					};
				}
			},
			"xyY" : {
				"XYZ" : function(xyY) {
					if (xyY.y == 0) {
						var X = 0, Y = 0, Z = 0;
					} else {
						var X = (xyY.x * xyY.Y) / xyY.y;
						var Y = xyY.Y;
						var Z = ((1 - xyY.x - xyY.y) * xyY.Y) / xyY.y;
					}
					return {
						X : X,
						Y : Y,
						Z : Z
					};
				}
			},
			"Lab" : {
				"XYZ" : function(lab, kwArgs) {
					kwArgs = dojo.mixin({
								whitepoint : "D65",
								observer : "10",
								useApproximation : true
							}, kwArgs || {});

					var b = kwArgs.useApproximation, kappa = self.kappa(b), epsilon = self
							.epsilon(b);
					var wp = self
							.whitepoint(kwArgs.whitepoint, kwArgs.observer);
					var yr = (lab.L > (kappa * epsilon)) ? Math.pow(
							(lab.L + 16) / 116, 3) : lab.L / kappa;
					var fy = (yr > epsilon)
							? (lab.L + 16) / 116
							: (kappa * yr + 16) / 116;
					var fx = (lab.a / 500) + fy;
					var fz = fy - (lab.b / 200);
					var fxcube = Math.pow(fx, 3), fzcube = Math.pow(fz, 3);
					var xr = (fxcube > epsilon) ? fxcube : (116 * fx - 16)
							/ kappa;
					var zr = (fzcube > epsilon) ? fzcube : (116 * fz - 16)
							/ kappa;
					return {
						X : xr * wp.x,
						Y : yr * wp.y,
						Z : zr * wp.z
					};
				},
				"LCHab" : function(lab) {
					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);
					if (H < 0) {
						H += 360;
					}
					if (H < 360) {
						H -= 360;
					}
					return {
						L : L,
						C : C,
						H : H
					};
				}
			},
			"LCHab" : {
				"Lab" : function(lch) {
					var hRad = lch.H * (Math.PI / 180), L = lch.L, a = lch.C
							/ Math.pow(Math.pow(Math.tan(hRad), 2) + 1, 0.5);
					if (90 < lchH && lch.H < 270) {
						a = -a;
					}
					var b = Math.pow(Math.pow(lch.C, 2) - Math.pow(a, 2), 0.5);
					if (lch.H > 180) {
						b = -b;
					}
					return {
						L : L,
						a : a,
						b : b
					};
				}
			},
			"Luv" : {
				"XYZ" : function(Luv, kwArgs) {
					kwArgs = dojo.mixin({
								whitepoint : "D65",
								observer : "10",
								useApproximation : true
							}, kwArgs || {});

					var b = kwArgs.useApproximation, kappa = self.kappa(b), epsilon = self
							.epsilon(b);
					var wp = self
							.whitepoint(kwArgs.whitepoint, kwArgs.observer);
					var uz = (4 * wp.x) / (wp.x + 15 * wp.y + 3 * wp.z);
					var vz = (9 * wp.y) / (wp.x + 15 * wp.y + 3 * wp.z);
					var Y = (Luv.L > kappa * epsilon) ? Math.pow((Luv.L + 16)
									/ 116, 3) : Luv.L / kappa;
					var a = (1 / 3)
							* (((52 * Luv.L) / (Luv.u + 13 * Luv.L * uz)) - 1);
					var b = -5 * Y, c = -(1 / 3), d = Y
							* (((39 * Luv.L) / (Luv.v + 13 * Luv.L * vz)) - 5);
					var X = (d - b) / (a - c), Z = X * a + b;
					return {
						X : X,
						Y : Y,
						Z : Z
					};
				},
				"LCHuv" : function(Luv) {
					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);
					if (H < 0) {
						H += 360;
					}
					if (H > 360) {
						H -= 360;
					}
					return {
						L : L,
						C : C,
						H : H
					};
				}
			},
			"LCHuv" : {
				"Luv" : function(LCH) {
					var hRad = LCH.H * (Math.PI / 180);
					var L = LCH.L, u = LCH.C
							/ Math.pow(Math.pow(Math.tan(hRad), 2) + 1, 0.5);
					var v = Math.pow(LCH.C * LCH.C - u * u, 0.5);
					if (90 < LCH.H && LCH.H > 270) {
						u *= -1;
					}
					if (LCH.H > 180) {
						v *= -1;
					}
					return {
						L : L,
						u : u,
						v : v
					};
				}
			}
		};
		var converters = {
			"CMY" : {
				"CMYK" : function(obj, kwArgs) {
					return dxc.fromCmy(obj).toCmyk();
				},
				"HSL" : function(obj, kwArgs) {
					return dxc.fromCmy(obj).toHsl();
				},
				"HSV" : function(obj, kwArgs) {
					return dxc.fromCmy(obj).toHsv();
				},
				"Lab" : function(obj, kwArgs) {
					return cMaps["XYZ"]["Lab"](dxc.fromCmy(obj).toXYZ(kwArgs));
				},
				"LCHab" : function(obj, kwArgs) {
					return cMaps["Lab"]["LCHab"](converters["CMY"]["Lab"](obj));
				},
				"LCHuv" : function(obj, kwArgs) {
					return cMaps["LCHuv"]["Luv"](cMaps["Luv"]["XYZ"](dxc
							.fromCmy(obj).toXYZ(kwArgs)));
				},
				"Luv" : function(obj, kwArgs) {
					return cMaps["Luv"]["XYZ"](dxc.fromCmy(obj).toXYZ(kwArgs));
				},
				"RGB" : function(obj, kwArgs) {
					return dxc.fromCmy(obj);
				},
				"XYZ" : function(obj, kwArgs) {
					return dxc.fromCmy(obj).toXYZ(kwArgs);
				},
				"xyY" : function(obj, kwArgs) {
					return cMaps["XYZ"]["xyY"](dxc.fromCmy(obj).toXYZ(kwArgs));
				}
			},
			"CMYK" : {
				"CMY" : function(obj, kwArgs) {
					return dxc.fromCmyk(obj).toCmy();
				},
				"HSL" : function(obj, kwArgs) {
					return dxc.fromCmyk(obj).toHsl();
				},
				"HSV" : function(obj, kwArgs) {
					return dxc.fromCmyk(obj).toHsv();
				},
				"Lab" : function(obj, kwArgs) {
					return cMaps["XYZ"]["Lab"](dxc.fromCmyk(obj).toXYZ(kwArgs));
				},
				"LCHab" : function(obj, kwArgs) {
					return cMaps["Lab"]["LCHab"](converters["CMYK"]["Lab"](obj));
				},
				"LCHuv" : function(obj, kwArgs) {
					return cMaps["LCHuv"]["Luv"](cMaps["Luv"]["XYZ"](dxc
							.fromCmyk(obj).toXYZ(kwArgs)));
				},
				"Luv" : function(obj, kwArgs) {
					return cMaps["Luv"]["XYZ"](dxc.fromCmyk(obj).toXYZ(kwArgs));
				},
				"RGB" : function(obj, kwArgs) {
					return dxc.fromCmyk(obj);
				},
				"XYZ" : function(obj, kwArgs) {
					return dxc.fromCmyk(obj).toXYZ(kwArgs);
				},
				"xyY" : function(obj, kwArgs) {
					return cMaps["XYZ"]["xyY"](dxc.fromCmyk(obj).toXYZ(kwArgs));
				}
			},
			"HSL" : {
				"CMY" : function(obj, kwArgs) {
					return dxc.fromHsl(obj).toCmy();
				},
				"CMYK" : function(obj, kwArgs) {
					return dxc.fromHsl(obj).toCmyk();
				},
				"HSV" : function(obj, kwArgs) {
					return dxc.fromHsl(obj).toHsv();
				},
				"Lab" : function(obj, kwArgs) {
					return cMaps["XYZ"]["Lab"](dxc.fromHsl(obj).toXYZ(kwArgs));
				},
				"LCHab" : function(obj, kwArgs) {
					return cMaps["Lab"]["LCHab"](converters["CMYK"]["Lab"](obj));
				},
				"LCHuv" : function(obj, kwArgs) {
					return cMaps["LCHuv"]["Luv"](cMaps["Luv"]["XYZ"](dxc
							.fromHsl(obj).toXYZ(kwArgs)));
				},
				"Luv" : function(obj, kwArgs) {
					return cMaps["Luv"]["XYZ"](dxc.fromHsl(obj).toXYZ(kwArgs));
				},
				"RGB" : function(obj, kwArgs) {
					return dxc.fromHsl(obj);
				},
				"XYZ" : function(obj, kwArgs) {
					return dxc.fromHsl(obj).toXYZ(kwArgs);
				},
				"xyY" : function(obj, kwArgs) {
					return cMaps["XYZ"]["xyY"](dxc.fromHsl(obj).toXYZ(kwArgs));
				}
			},
			"HSV" : {
				"CMY" : function(obj, kwArgs) {
					return dxc.fromHsv(obj).toCmy();
				},
				"CMYK" : function(obj, kwArgs) {
					return dxc.fromHsv(obj).toCmyk();
				},
				"HSL" : function(obj, kwArgs) {
					return dxc.fromHsv(obj).toHsl();
				},
				"Lab" : function(obj, kwArgs) {
					return cMaps["XYZ"]["Lab"](dxc.fromHsv(obj).toXYZ(kwArgs));
				},
				"LCHab" : function(obj, kwArgs) {
					return cMaps["Lab"]["LCHab"](converters["CMYK"]["Lab"](obj));
				},
				"LCHuv" : function(obj, kwArgs) {
					return cMaps["LCHuv"]["Luv"](cMaps["Luv"]["XYZ"](dxc
							.fromHsv(obj).toXYZ(kwArgs)));
				},
				"Luv" : function(obj, kwArgs) {
					return cMaps["Luv"]["XYZ"](dxc.fromHsv(obj).toXYZ(kwArgs));
				},
				"RGB" : function(obj, kwArgs) {
					return dxc.fromHsv(obj);
				},
				"XYZ" : function(obj, kwArgs) {
					return dxc.fromHsv(obj).toXYZ(kwArgs);
				},
				"xyY" : function(obj, kwArgs) {
					return cMaps["XYZ"]["xyY"](dxc.fromHsv(obj).toXYZ(kwArgs));
				}
			},
			"Lab" : {
				"CMY" : function(obj, kwArgs) {
					return dxc.fromXYZ(cMaps["Lab"]["XYZ"](obj, kwArgs))
							.toCmy();
				},
				"CMYK" : function(obj, kwArgs) {
					return dxc.fromXYZ(cMaps["Lab"]["XYZ"](obj, kwArgs))
							.toCmyk();
				},
				"HSL" : function(obj, kwArgs) {
					return dxc.fromXYZ(cMaps["Lab"]["XYZ"](obj, kwArgs))
							.toHsl();
				},
				"HSV" : function(obj, kwArgs) {
					return dxc.fromXYZ(cMaps["Lab"]["XYZ"](obj, kwArgs))
							.toHsv();
				},
				"LCHab" : function(obj, kwArgs) {
					return cMaps["Lab"]["LCHab"](obj, kwArgs);
				},
				"LCHuv" : function(obj, kwArgs) {
					return cMaps["Luv"]["LCHuv"](cMaps["Lab"]["XYZ"](obj,
									kwArgs), kwArgs);
				},
				"Luv" : function(obj, kwArgs) {
					return cMaps["XYZ"]["Luv"](
							cMaps["Lab"]["XYZ"](obj, kwArgs), kwArgs);
				},
				"RGB" : function(obj, kwArgs) {
					return dxc.fromXYZ(cMaps["Lab"]["XYZ"](obj, kwArgs));
				},
				"XYZ" : function(obj, kwArgs) {
					return cMaps["Lab"]["XYZ"](obj, kwArgs);
				},
				"xyY" : function(obj, kwArgs) {
					return cMaps["XYZ"]["xyY"](
							cMaps["Lab"]["XYZ"](obj, kwArgs), kwArgs);
				}
			},
			"LCHab" : {
				"CMY" : function(obj, kwArgs) {
					return dxc.fromXYZ(
							cMaps["Lab"]["XYZ"](cMaps["LCHab"]["Lab"](obj),
									kwArgs), kwArgs).toCmy();
				},
				"CMYK" : function(obj, kwArgs) {
					return dxc.fromXYZ(
							cMaps["Lab"]["XYZ"](cMaps["LCHab"]["Lab"](obj),
									kwArgs), kwArgs).toCmyk();
				},
				"HSL" : function(obj, kwArgs) {
					return dxc.fromXYZ(
							cMaps["Lab"]["XYZ"](cMaps["LCHab"]["Lab"](obj),
									kwArgs), kwArgs).toHsl();
				},
				"HSV" : function(obj, kwArgs) {
					return dxc.fromXYZ(
							cMaps["Lab"]["XYZ"](cMaps["LCHab"]["Lab"](obj),
									kwArgs), kwArgs).toHsv();
				},
				"Lab" : function(obj, kwArgs) {
					return cMaps["Lab"]["LCHab"](obj, kwArgs);
				},
				"LCHuv" : function(obj, kwArgs) {
					return cMaps["Luv"]["LCHuv"](
							cMaps["XYZ"]["Luv"](
									cMaps["Lab"]["XYZ"](
											cMaps["LCHab"]["Lab"](obj), kwArgs),
									kwArgs), kwArgs);
				},
				"Luv" : function(obj, kwArgs) {
					return cMaps["XYZ"]["Luv"](cMaps["Lab"]["XYZ"](
									cMaps["LCHab"]["Lab"](obj), kwArgs), kwArgs);
				},
				"RGB" : function(obj, kwArgs) {
					return dxc
							.fromXYZ(
									cMaps["Lab"]["XYZ"](
											cMaps["LCHab"]["Lab"](obj), kwArgs),
									kwArgs);
				},
				"XYZ" : function(obj, kwArgs) {
					return cMaps["Lab"]["XYZ"](cMaps["LCHab"]["Lab"](obj,
									kwArgs), kwArgs);
				},
				"xyY" : function(obj, kwArgs) {
					return cMaps["XYZ"]["xyY"](cMaps["Lab"]["XYZ"](
									cMaps["LCHab"]["Lab"](obj), kwArgs), kwArgs);
				}
			},
			"LCHuv" : {
				"CMY" : function(obj, kwArgs) {
					return dxc.fromXYZ(
							cMaps["Luv"]["XYZ"](cMaps["LCHuv"]["Luv"](obj),
									kwArgs), kwArgs).toCmy();
				},
				"CMYK" : function(obj, kwArgs) {
					return dxc.fromXYZ(
							cMaps["Luv"]["XYZ"](cMaps["LCHuv"]["Luv"](obj),
									kwArgs), kwArgs).toCmyk();
				},
				"HSL" : function(obj, kwArgs) {
					return dxc.fromXYZ(
							cMaps["Luv"]["XYZ"](cMaps["LCHuv"]["Luv"](obj),
									kwArgs), kwArgs).toHsl();
				},
				"HSV" : function(obj, kwArgs) {
					return dxc.fromXYZ(
							cMaps["Luv"]["XYZ"](cMaps["LCHuv"]["Luv"](obj),
									kwArgs), kwArgs).toHsv();
				},
				"Lab" : function(obj, kwArgs) {
					return cMaps["XYZ"]["Lab"](cMaps["Luv"]["XYZ"](
									cMaps["LCHuv"]["Luv"](obj), kwArgs), kwArgs);
				},
				"LCHab" : function(obj, kwArgs) {
					return cMaps["Lab"]["LCHab"](
							cMaps["XYZ"]["Lab"](
									cMaps["Luv"]["XYZ"](
											cMaps["LCHuv"]["Luv"](obj), kwArgs),
									kwArgs), kwArgs);
				},
				"Luv" : function(obj, kwArgs) {
					return cMaps["LCHuv"]["Luv"](obj, kwArgs);
				},
				"RGB" : function(obj, kwArgs) {
					return dxc
							.fromXYZ(
									cMaps["Luv"]["XYZ"](
											cMaps["LCHuv"]["Luv"](obj), kwArgs),
									kwArgs);
				},
				"XYZ" : function(obj, kwArgs) {
					return cMaps["Luv"]["XYZ"](cMaps["LCHuv"]["Luv"](obj),
							kwArgs);
				},
				"xyY" : function(obj, kwArgs) {
					return cMaps["XYZ"]["xyY"](cMaps["Luv"]["XYZ"](
									cMaps["LCHuv"]["Luv"](obj), kwArgs), kwArgs);
				}
				,
			},
			"Luv" : {
				"CMY" : function(obj, kwArgs) {
					return dxc
							.fromXYZ(cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs)
							.toCmy();
				},
				"CMYK" : function(obj, kwArgs) {
					return dxc
							.fromXYZ(cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs)
							.toCmyk();
				},
				"HSL" : function(obj, kwArgs) {
					return dxc
							.fromXYZ(cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs)
							.toHsl();
				},
				"HSV" : function(obj, kwArgs) {
					return dxc
							.fromXYZ(cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs)
							.toHsv();
				},
				"Lab" : function(obj, kwArgs) {
					return cMaps["XYZ"]["Lab"](
							cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs);
				},
				"LCHab" : function(obj, kwArgs) {
					return cMaps["Lab"]["LCHab"](cMaps["XYZ"]["Lab"](
									cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs),
							kwArgs);
				},
				"LCHuv" : function(obj, kwArgs) {
					return cMaps["Luv"]["LCHuv"](obj, kwArgs);
				},
				"RGB" : function(obj, kwArgs) {
					return dxc
							.fromXYZ(cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs);
				},
				"XYZ" : function(obj, kwArgs) {
					return cMaps["Luv"]["XYZ"](obj, kwArgs);
				},
				"xyY" : function(obj, kwArgs) {
					return cMaps["XYZ"]["xyY"](
							cMaps["Luv"]["XYZ"](obj, kwArgs), kwArgs);
				}
				,
			},
			"RGB" : {
				"CMY" : function(obj, kwArgs) {
					return obj.toCmy();
				},
				"CMYK" : function(obj, kwArgs) {
					return obj.toCmyk();
				},
				"HSL" : function(obj, kwArgs) {
					return obj.toHsl();
				},
				"HSV" : function(obj, kwArgs) {
					return obj.toHsv();
				},
				"Lab" : function(obj, kwArgs) {
					return cMaps["XYZ"]["Lab"](obj.toXYZ(kwArgs), kwArgs);
				},
				"LCHab" : function(obj, kwArgs) {
					return cMaps["LCHab"]["Lab"](cMaps["XYZ"]["Lab"](obj
											.toXYZ(kwArgs), kwArgs), kwArgs);
				},
				"LCHuv" : function(obj, kwArgs) {
					return cMaps["LCHuv"]["Luv"](cMaps["XYZ"]["Luv"](obj
											.toXYZ(kwArgs), kwArgs), kwArgs);
				},
				"Luv" : function(obj, kwArgs) {
					return cMaps["XYZ"]["Luv"](obj.toXYZ(kwArgs), kwArgs);
				},
				"XYZ" : function(obj, kwArgs) {
					return obj.toXYZ(kwArgs);
				},
				"xyY" : function(obj, kwArgs) {
					return cMaps["XYZ"]["xyY"](obj.toXYZ(kwArgs), kwArgs);
				}
			},
			"XYZ" : {
				"CMY" : function(obj, kwArgs) {
					return dxc.fromXYZ(obj, kwArgs).toCmy();
				},
				"CMYK" : function(obj, kwArgs) {
					return dxc.fromXYZ(obj, kwArgs).toCmyk();
				},
				"HSL" : function(obj, kwArgs) {
					return dxc.fromXYZ(obj, kwArgs).toHsl();
				},
				"HSV" : function(obj, kwArgs) {
					return dxc.fromXYZ(obj, kwArgs).toHsv();
				},
				"Lab" : function(obj, kwArgs) {
					return cMaps["XYZ"]["Lab"](obj, kwArgs);
				},
				"LCHab" : function(obj, kwArgs) {
					return cMaps["Lab"]["LCHab"](cMaps["XYZ"]["Lab"](obj,
									kwArgs), kwArgs);
				},
				"LCHuv" : function(obj, kwArgs) {
					return cMaps["Luv"]["LCHuv"](cMaps["XYZ"]["Luv"](obj,
									kwArgs), kwArgs);
				},
				"Luv" : function(obj, kwArgs) {
					return cMaps["XYZ"]["Luv"](obj, kwArgs);
				},
				"RGB" : function(obj, kwArgs) {
					return dxc.fromXYZ(obj, kwArgs);
				},
				"xyY" : function(obj, kwArgs) {
					return cMaps["XYZ"]["xyY"](dxc.fromXYZ(obj, kwArgs), kwArgs);
				}
			},
			// TODO: revisit this. xyY represents a single color, not a spectrum
			// of colors.
			"xyY" : {
				"CMY" : function(obj, kwArgs) {
					return dxc
							.fromXYZ(cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs)
							.toCmy();
				},
				"CMYK" : function(obj, kwArgs) {
					return dxc
							.fromXYZ(cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs)
							.toCmyk();
				},
				"HSL" : function(obj, kwArgs) {
					return dxc
							.fromXYZ(cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs)
							.toHsl();
				},
				"HSV" : function(obj, kwArgs) {
					return dxc
							.fromXYZ(cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs)
							.toHsv();
				},
				"Lab" : function(obj, kwArgs) {
					return cMaps["Lab"]["XYZ"](
							cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs);
				},
				"LCHab" : function(obj, kwArgs) {
					return cMaps["LCHab"]["Lab"](cMaps["Lab"]["XYZ"](
									cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs),
							kwArgs);
				},
				"LCHuv" : function(obj, kwArgs) {
					return cMaps["LCHuv"]["Luv"](cMaps["Luv"]["XYZ"](
									cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs),
							kwArgs);
				},
				"Luv" : function(obj, kwArgs) {
					return cMaps["Luv"]["XYZ"](
							cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs);
				},
				"RGB" : function(obj, kwArgs) {
					return dxc
							.fromXYZ(cMaps["xyY"]["XYZ"](obj, kwArgs), kwArgs);
				},
				"XYZ" : function(obj, kwArgs) {
					return cMaps["xyY"]["XYZ"](obj, kwArgs);
				}
			}
		};

		this.whitepoint = function(/* String */wpName, /* String? */observer) {
			observer = observer || "10";
			var x = 0, y = 0, t = 0;
			if (wpMap[observer] && wpMap[observer][wpName]) {
				x = wpMap[observer][wpName].x;
				y = wpMap[observer][wpName].y;
				t = wpMap[observer][wpName].t;
			} else {
				console
						.warn(
								"dojox.color.Colorspace::whitepoint: either the observer or the whitepoint name was not found. ",
								observer, wpName);
			}
			var wp = {
				x : x,
				y : y,
				z : (1 - x - y),
				t : t,
				Y : 1
			};
			return this.convert(wp, "xyY", "XYZ");
		};

		this.tempToWhitepoint = function(/* Number */t) {
			if (t < 4000) {
				console
						.warn(
								"dojox.color.Colorspace::tempToWhitepoint: can't find a white point for temperatures less than 4000K. (Passed ",
								t, ").");
				return {
					x : 0,
					y : 0
				};
			}
			if (t > 25000) {
				console
						.warn(
								"dojox.color.Colorspace::tempToWhitepoint: can't find a white point for temperatures greater than 25000K. (Passed ",
								t, ").");
				return {
					x : 0,
					y : 0
				};
			}
			var t1 = t, t2 = t * t, t3 = t2 * t;
			var ten9 = Math.pow(10, 9), ten6 = Math.pow(10, 6), ten3 = Math
					.pow(10, 3);
			if (t <= 7000) {
				var x = (-4.607 * ten9 / t3) + (2.9678 * ten6 / t2)
						+ (0.09911 * ten3 / t) + 0.2444063;
			} else {
				var x = (-2.0064 * ten9 / t3) + (1.9018 * ten6 / t2)
						+ (0.24748 * ten3 / t) + 0.23704;
			}
			var y = -3 * x * x + 2.87 * x - 0.275;
			return {
				x : x,
				y : y
			};
		};

		this.primaries = function(/* Object */kwArgs) {
			// mix in the defaults.
			kwArgs = dojo.mixin({
						profile : "sRGB",
						whitepoint : "D65",
						observer : "10",
						adaptor : "Bradford"
					}, kwArgs || {});

			var m = [];
			if (profiles[kwArgs.profile]) {
				m = profiles[kwArgs.profile].slice(0);
			} else {
				console
						.warn(
								"dojox.color.Colorspace::primaries: the passed profile was not found.  ",
								"Available profiles include: ", profiles,
								".  The profile passed was ", kwArgs.profile);
			}
			var primary = {
				name : kwArgs.profile,
				gamma : m[0],
				whitepoint : m[1],
				xr : m[2],
				yr : m[3],
				Yr : m[4],
				xg : m[5],
				yg : m[6],
				Yg : m[7],
				xb : m[8],
				yb : m[9],
				Yb : m[10]
			};

			// convert for the whitepoint
			if (kwArgs.whitepoint != primary.whitepoint) {
				var r = this.convert(this.adapt({
									color : this.convert({
												x : xr,
												y : yr,
												Y : Yr
											}, "xyY", "XYZ"),
									adaptor : kwArgs.adaptor,
									source : primary.whitepoint,
									destination : kwArgs.whitepoint
								}), "XYZ", "xyY");
				var g = this.convert(this.adapt({
									color : this.convert({
												x : xg,
												y : yg,
												Y : Yg
											}, "xyY", "XYZ"),
									adaptor : kwArgs.adaptor,
									source : primary.whitepoint,
									destination : kwArgs.whitepoint
								}), "XYZ", "xyY");
				var b = this.convert(this.adapt({
									color : this.convert({
												x : xb,
												y : yb,
												Y : Yb
											}, "xyY", "XYZ"),
									adaptor : kwArgs.adaptor,
									source : primary.whitepoint,
									destination : kwArgs.whitepoint
								}), "XYZ", "xyY");
				primary = dojo.mixin(primary, {
							xr : r.x,
							yr : r.y,
							Yr : r.Y,
							xg : g.x,
							yg : g.y,
							Yg : g.Y,
							xb : b.x,
							yb : b.y,
							Yb : b.Y,
							whitepoint : kwArgs.whitepoint
						});
			}
			return dojo.mixin(primary, {
						zr : 1 - primary.xr - primary.yr,
						zg : 1 - primary.xg - primary.yg,
						zb : 1 - primary.xb - primary.yb
					}); // Object
		};

		this.adapt = function(/* Object */kwArgs) {
			// color is required in the form of XYZ, source whitepoint name is
			// required.
			if (!kwArgs.color || !kwArgs.source) {
				console
						.error(
								"dojox.color.Colorspace::adapt: color and source arguments are required. ",
								kwArgs);
			}

			// defaults
			kwArgs = dojo.mixin({
						adaptor : "Bradford",
						destination : "D65"
					}, kwArgs);

			// adapt
			var swp = this.whitepoint(kwArgs.source);
			var dwp = this.whitepoint(kwArgs.destination);
			if (adaptors[kwArgs.adaptor]) {
				var ma = adaptors[kwArgs.adaptor].ma;
				var mai = adaptors[kwArgs.adaptor].mai;
			} else {
				console.warn(
						"dojox.color.Colorspace::adapt: the passed adaptor '",
						kwArgs.adaptor, "' was not found.");
			}
			var dSrc = dxm.multiply([[swp.x, swp.y, swp.z]], ma);
			var dDest = dxm.multiply([[dwp.x, dwp.y, dwp.z]], ma);
			var center = [[dDest[0][0] / dSrc[0][0], 0, 0],
					[0, dDest[0][1] / dSrc[0][1], 0],
					[0, 0, dDest[0][2] / dSrc[0][2]]];
			var m = dxm.multiply(dxm.multiply(ma, center), mai);
			var r = dxm.multiply([[kwArgs.color.X, kwArgs.color.Y,
							kwArgs.color.Z]], m)[0];
			return {
				X : r[0],
				Y : r[1],
				Z : r[2]
			};
		};

		this.matrix = function(/* String */to, /* Object */primary) {
			var wp = this.whitepoint(primary.whitepoint);
			var Xr = p.xr / p.yr, Yr = 1, Zr = (1 - p.xr - p.yr) / p.yr;
			var Xg = p.xg / p.yg, Yg = 1, Zg = (1 - p.xg - p.yg) / p.yg;
			var Xb = p.xb / p.yb, Yb = 1, Zr = (1 - p.xb - p.yb) / p.yb;

			var m1 = [[Xr, Yr, Zr], [Xg, Yg, Zg], [Xb, Yb, Zb]];
			var m2 = [[wp.X, wp.Y, wp.Z]];
			var sm = dojox.math.matrix.multiply(m2, dojox.math.matrix
							.inverse(m1));
			var Sr = sm[0][0], Sg = sm[0][1], Sb = sm[0][2];
			var result = [[Sr * Xr, Sr * Yr, Sr * Zr],
					[Sg * Xg, Sg * Yg, Sg * Zg], [Sb * Xb, Sb * Yb, Sb * Zb]];
			if (to == "RGB") {
				return dojox.math.inverse(result);
			}
			return result;
		};

		this.epsilon = function(/* bool? */useApprox) {
			return (useApprox || typeof(useApprox) == "undefined")
					? 0.008856
					: 216 / 24289;
		};
		this.kappa = function(/* bool? */useApprox) {
			return (useApprox || typeof(useApprox) == "undefined")
					? 903.3
					: 24389 / 27;
		};

		this.convert = function(/* Object */color, /* string */from, /* string */
				to, /* Object? */kwArgs) {
			if (converters[from] && converters[from][to]) {
				return converters[from][to](obj, kwArgs);
			}
			console.warn("dojox.color.Colorspace::convert: Can't convert ",
					color, " from ", from, " to ", to, ".");
		};
	})();

	// More dojox.color and dojox.color.Color extensions
	dojo.mixin(dojox.color, {
		fromXYZ : function(/* Object */xyz, /* Object? */kwArgs) {
			kwArgs = kwArgs || {};
			var p = dojox.color.Colorspace.primaries(kwArgs);
			var m = dojox.color.Colorspace.matrix("RGB", p);
			var rgb = dojox.math.matrix.mutliply([[xyz.X, xyz.Y, xyz.Z]], m);
			var r = rgb[0][0], g = rgb[0][1], b = rgb[0][2];
			if (p.profile == "sRGB") {
				var R = (r > 0.0031308) ? (1.055 * Math.pow(r, 1 / 2.4))
						- 0.055 : 12.92 * r;
				var G = (g > 0.0031308) ? (1.055 * Math.pow(g, 1 / 2.4))
						- 0.055 : 12.92 * g;
				var B = (b > 0.0031308) ? (1.055 * Math.pow(b, 1 / 2.4))
						- 0.055 : 12.92 * b;
			} else {
				var R = Math.pow(r, 1 / p.gamma), G = Math.pow(g, 1 / p.gamma), B = Math
						.pow(b, 1 / p.gamma);
			}
			return new dojox.color.Color({
						r : Math.floor(R * 255),
						g : Math.floor(G * 255),
						b : Math.floor(B * 255)
					});
		}
	});

	dojo.extend(dojox.color.Color, {
		toXYZ : function(/* Object */kwArgs) {
			kwArgs = kwArgs || {};
			var p = dojox.color.Colorspace.primaries(kwArgs);
			var m = dojox.color.Colorspace.matrix("XYZ", p);
			var _r = this.r / 255, _g = this.g / 255, _b = this.b / 255;
			if (p.profile == "sRGB") {
				var r = (_r > 0.04045)
						? Math.pow(((_r + 0.055) / 1.055), 2.4)
						: _r / 12.92;
				var g = (_g > 0.04045)
						? Math.pow(((_g + 0.055) / 1.055), 2.4)
						: _g / 12.92;
				var b = (_b > 0.04045)
						? Math.pow(((_b + 0.055) / 1.055), 2.4)
						: _b / 12.92;
			} else {
				var r = Math.pow(_r, p.gamma), g = Math.pow(_g, p.gamma), b = Math
						.pow(_b, p.gamma);
			}
			var xyz = dojox.math.matrix([[r, g, b]], m);
			return {
				X : xyz[0][0],
				Y : xyz[0][1],
				Z : xyz[0][2]
			}; // Object
		}
	});

}