wp/nwyj/.svn/pristine/5a/5a93ae2e4bc077ced30e5cdc1eb027e5bb4a875c.svn-base

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

	dojox.charting._color = {};
	dojox.charting._color.fromHsb = function(/* int */hue, /* int */
			saturation, /* int */brightness) {
		// summary
		// Creates an instance of dojo.Color based on HSB input (360, %, %)
		hue = Math.round(hue);
		saturation = Math.round((saturation / 100) * 255);
		brightness = Math.round((brightness / 100) * 255);

		var r, g, b;
		if (saturation == 0) {
			r = g = b = brightness;
		} else {
			var tint1 = brightness, tint2 = (255 - saturation) * brightness
					/ 255, tint3 = (tint1 - tint2) * (hue % 60) / 60;
			if (hue < 60) {
				r = tint1, g = tint2 + tint3, b = tint2;
			} else if (hue < 120) {
				r = tint1 - tint3, g = tint1, b = tint2;
			} else if (hue < 180) {
				r = tint2, g = tint1, b = tint2 + tint3;
			} else if (hue < 240) {
				r = tint2, g = tint1 - tint3, b = tint1;
			} else if (hue < 300) {
				r = tint2 + tint3, g = tint2, b = tint1;
			} else if (hue < 360) {
				r = tint1, g = tint2, b = tint1 - tint3;
			}
		}

		r = Math.round(r);
		g = Math.round(g);
		b = Math.round(b);
		return new dojo.Color({
					r : r,
					g : g,
					b : b
				});
	};

	dojox.charting._color.toHsb = function(/* int|Object|dojo.Color */red, /* int? */
			green, /* int? */blue) {
		// summary
		// Returns the color in HSB representation (360, %, %)
		var r = red, g = green, b = blue;
		if (dojo.isObject(red)) {
			r = red.r, g = red.g, b = red.b;
		}
		var min = Math.min(r, g, b);
		var max = Math.max(r, g, b);
		var delta = max - min;

		var hue = 0, saturation = (max != 0 ? delta / max : 0), brightness = max
				/ 255;
		if (saturation == 0) {
			hue = 0;
		} else {
			if (r == max) {
				hue = ((max - b) / delta) - ((max - g) / delta);
			} else if (g == max) {
				hue = 2 + (((max - r) / delta) - ((max - b) / delta));
			} else {
				hue = 4 + (((max - g) / delta) - ((max - r) / delta));
			}
			hue /= 6;
			if (hue < 0)
				hue++;
		}

		hue = Math.round(hue * 360);
		saturation = Math.round(saturation * 100);
		brightness = Math.round(brightness * 100);
		return {
			h : hue,
			s : saturation,
			b : brightness,
			hue : hue,
			saturation : saturation,
			brightness : brightness
		}; // Object
	};

}