Subversion-Projekte lars-tiefland.ci

/**

 * @license A class to parse color values

 * @author Stoyan Stefanov <sstoo@gmail.com>

 * @link   http://www.phpied.com/rgb-color-parser-in-javascript/

 * Use it if you like it

 *

 */

function RGBColor(color_string)

{

    this.ok = false;

    // strip any leading #

    if (color_string.charAt(0) == '#') { // remove # if any

        color_string = color_string.substr(1,6);

    }

    color_string = color_string.replace(/ /g,'');

    color_string = color_string.toLowerCase();

    // before getting into regexps, try simple matches

    // and overwrite the input

    var simple_colors = {

        aliceblue: 'f0f8ff',

        antiquewhite: 'faebd7',

        aqua: '00ffff',

        aquamarine: '7fffd4',

        azure: 'f0ffff',

        beige: 'f5f5dc',

        bisque: 'ffe4c4',

        black: '000000',

        blanchedalmond: 'ffebcd',

        blue: '0000ff',

        blueviolet: '8a2be2',

        brown: 'a52a2a',

        burlywood: 'deb887',

        cadetblue: '5f9ea0',

        chartreuse: '7fff00',

        chocolate: 'd2691e',

        coral: 'ff7f50',

        cornflowerblue: '6495ed',

        cornsilk: 'fff8dc',

        crimson: 'dc143c',

        cyan: '00ffff',

        darkblue: '00008b',

        darkcyan: '008b8b',

        darkgoldenrod: 'b8860b',

        darkgray: 'a9a9a9',

        darkgreen: '006400',

        darkkhaki: 'bdb76b',

        darkmagenta: '8b008b',

        darkolivegreen: '556b2f',

        darkorange: 'ff8c00',

        darkorchid: '9932cc',

        darkred: '8b0000',

        darksalmon: 'e9967a',

        darkseagreen: '8fbc8f',

        darkslateblue: '483d8b',

        darkslategray: '2f4f4f',

        darkturquoise: '00ced1',

        darkviolet: '9400d3',

        deeppink: 'ff1493',

        deepskyblue: '00bfff',

        dimgray: '696969',

        dodgerblue: '1e90ff',

        feldspar: 'd19275',

        firebrick: 'b22222',

        floralwhite: 'fffaf0',

        forestgreen: '228b22',

        fuchsia: 'ff00ff',

        gainsboro: 'dcdcdc',

        ghostwhite: 'f8f8ff',

        gold: 'ffd700',

        goldenrod: 'daa520',

        gray: '808080',

        green: '008000',

        greenyellow: 'adff2f',

        honeydew: 'f0fff0',

        hotpink: 'ff69b4',

        indianred : 'cd5c5c',

        indigo : '4b0082',

        ivory: 'fffff0',

        khaki: 'f0e68c',

        lavender: 'e6e6fa',

        lavenderblush: 'fff0f5',

        lawngreen: '7cfc00',

        lemonchiffon: 'fffacd',

        lightblue: 'add8e6',

        lightcoral: 'f08080',

        lightcyan: 'e0ffff',

        lightgoldenrodyellow: 'fafad2',

        lightgrey: 'd3d3d3',

        lightgreen: '90ee90',

        lightpink: 'ffb6c1',

        lightsalmon: 'ffa07a',

        lightseagreen: '20b2aa',

        lightskyblue: '87cefa',

        lightslateblue: '8470ff',

        lightslategray: '778899',

        lightsteelblue: 'b0c4de',

        lightyellow: 'ffffe0',

        lime: '00ff00',

        limegreen: '32cd32',

        linen: 'faf0e6',

        magenta: 'ff00ff',

        maroon: '800000',

        mediumaquamarine: '66cdaa',

        mediumblue: '0000cd',

        mediumorchid: 'ba55d3',

        mediumpurple: '9370d8',

        mediumseagreen: '3cb371',

        mediumslateblue: '7b68ee',

        mediumspringgreen: '00fa9a',

        mediumturquoise: '48d1cc',

        mediumvioletred: 'c71585',

        midnightblue: '191970',

        mintcream: 'f5fffa',

        mistyrose: 'ffe4e1',

        moccasin: 'ffe4b5',

        navajowhite: 'ffdead',

        navy: '000080',

        oldlace: 'fdf5e6',

        olive: '808000',

        olivedrab: '6b8e23',

        orange: 'ffa500',

        orangered: 'ff4500',

        orchid: 'da70d6',

        palegoldenrod: 'eee8aa',

        palegreen: '98fb98',

        paleturquoise: 'afeeee',

        palevioletred: 'd87093',

        papayawhip: 'ffefd5',

        peachpuff: 'ffdab9',

        peru: 'cd853f',

        pink: 'ffc0cb',

        plum: 'dda0dd',

        powderblue: 'b0e0e6',

        purple: '800080',

        red: 'ff0000',

        rosybrown: 'bc8f8f',

        royalblue: '4169e1',

        saddlebrown: '8b4513',

        salmon: 'fa8072',

        sandybrown: 'f4a460',

        seagreen: '2e8b57',

        seashell: 'fff5ee',

        sienna: 'a0522d',

        silver: 'c0c0c0',

        skyblue: '87ceeb',

        slateblue: '6a5acd',

        slategray: '708090',

        snow: 'fffafa',

        springgreen: '00ff7f',

        steelblue: '4682b4',

        tan: 'd2b48c',

        teal: '008080',

        thistle: 'd8bfd8',

        tomato: 'ff6347',

        turquoise: '40e0d0',

        violet: 'ee82ee',

        violetred: 'd02090',

        wheat: 'f5deb3',

        white: 'ffffff',

        whitesmoke: 'f5f5f5',

        yellow: 'ffff00',

        yellowgreen: '9acd32'

    };

    for (var key in simple_colors) {

        if (color_string == key) {

            color_string = simple_colors[key];

        }

    }

    // emd of simple type-in colors

    // array of color definition objects

    var color_defs = [

        {

            re: /^rgb\((\d{1,3}),\s*(\d{1,3}),\s*(\d{1,3})\)$/,

            example: ['rgb(123, 234, 45)', 'rgb(255,234,245)'],

            process: function (bits){

                return [

                    parseInt(bits[1]),

                    parseInt(bits[2]),

                    parseInt(bits[3])

                ];

            }

        },

        {

            re: /^(\w{2})(\w{2})(\w{2})$/,

            example: ['#00ff00', '336699'],

            process: function (bits){

                return [

                    parseInt(bits[1], 16),

                    parseInt(bits[2], 16),

                    parseInt(bits[3], 16)

                ];

            }

        },

        {

            re: /^(\w{1})(\w{1})(\w{1})$/,

            example: ['#fb0', 'f0f'],

            process: function (bits){

                return [

                    parseInt(bits[1] + bits[1], 16),

                    parseInt(bits[2] + bits[2], 16),

                    parseInt(bits[3] + bits[3], 16)

                ];

            }

        }

    ];

    // search through the definitions to find a match

    for (var i = 0; i < color_defs.length; i++) {

        var re = color_defs[i].re;

        var processor = color_defs[i].process;

        var bits = re.exec(color_string);

        if (bits) {

            channels = processor(bits);

            this.r = channels[0];

            this.g = channels[1];

            this.b = channels[2];

            this.ok = true;

        }

    }

    // validate/cleanup values

    this.r = (this.r < 0 || isNaN(this.r)) ? 0 : ((this.r > 255) ? 255 : this.r);

    this.g = (this.g < 0 || isNaN(this.g)) ? 0 : ((this.g > 255) ? 255 : this.g);

    this.b = (this.b < 0 || isNaN(this.b)) ? 0 : ((this.b > 255) ? 255 : this.b);

    // some getters

    this.toRGB = function () {

        return 'rgb(' + this.r + ', ' + this.g + ', ' + this.b + ')';

    }

    this.toHex = function () {

        var r = this.r.toString(16);

        var g = this.g.toString(16);

        var b = this.b.toString(16);

        if (r.length == 1) r = '0' + r;

        if (g.length == 1) g = '0' + g;

        if (b.length == 1) b = '0' + b;

        return '#' + r + g + b;

    }

    // help

    this.getHelpXML = function () {

        var examples = new Array();

        // add regexps

        for (var i = 0; i < color_defs.length; i++) {

            var example = color_defs[i].example;

            for (var j = 0; j < example.length; j++) {

                examples[examples.length] = example[j];

            }

        }

        // add type-in colors

        for (var sc in simple_colors) {

            examples[examples.length] = sc;

        }

        var xml = document.createElement('ul');

        xml.setAttribute('id', 'rgbcolor-examples');

        for (var i = 0; i < examples.length; i++) {

            try {

                var list_item = document.createElement('li');

                var list_color = new RGBColor(examples[i]);

                var example_div = document.createElement('div');

                example_div.style.cssText =

                        'margin: 3px; '

                        + 'border: 1px solid black; '

                        + 'background:' + list_color.toHex() + '; '

                        + 'color:' + list_color.toHex()

                ;

                example_div.appendChild(document.createTextNode('test'));

                var list_item_value = document.createTextNode(

                    ' ' + examples[i] + ' -> ' + list_color.toRGB() + ' -> ' + list_color.toHex()

                );

                list_item.appendChild(example_div);

                list_item.appendChild(list_item_value);

                xml.appendChild(list_item);

            } catch(e){}

        }

        return xml;

    }

}

/**

 * @license canvg.js - Javascript SVG parser and renderer on Canvas

 * MIT Licensed

 * Gabe Lerner (gabelerner@gmail.com)

 * http://code.google.com/p/canvg/

 *

 * Requires: rgbcolor.js - http://www.phpied.com/rgb-color-parser-in-javascript/

 *

 */

if(!window.console) {

	window.console = {};

	window.console.log = function(str) {};

	window.console.dir = function(str) {};

}

if(!Array.prototype.indexOf){

	Array.prototype.indexOf = function(obj){

		for(var i=0; i<this.length; i++){

			if(this[i]==obj){

				return i;

			}

		}

		return -1;

	}

}

(function(){

	// canvg(target, s)

	// empty parameters: replace all 'svg' elements on page with 'canvas' elements

	// target: canvas element or the id of a canvas element

	// s: svg string, url to svg file, or xml document

	// opts: optional hash of options

	//		 ignoreMouse: true => ignore mouse events

	//		 ignoreAnimation: true => ignore animations

	//		 ignoreDimensions: true => does not try to resize canvas

	//		 ignoreClear: true => does not clear canvas

	//		 offsetX: int => draws at a x offset

	//		 offsetY: int => draws at a y offset

	//		 scaleWidth: int => scales horizontally to width

	//		 scaleHeight: int => scales vertically to height

	//		 renderCallback: function => will call the function after the first render is completed

	//		 forceRedraw: function => will call the function on every frame, if it returns true, will redraw

	this.canvg = function (target, s, opts) {

		// no parameters

		if (target == null && s == null && opts == null) {

			var svgTags = document.getElementsByTagName('svg');

			for (var i=0; i<svgTags.length; i++) {

				var svgTag = svgTags[i];

				var c = document.createElement('canvas');

				c.width = svgTag.clientWidth;

				c.height = svgTag.clientHeight;

				svgTag.parentNode.insertBefore(c, svgTag);

				svgTag.parentNode.removeChild(svgTag);

				var div = document.createElement('div');

				div.appendChild(svgTag);

				canvg(c, div.innerHTML);

			}

			return;

		}

		opts = opts || {};

		if (typeof target == 'string') {

			target = document.getElementById(target);

		}

		// reuse class per canvas

		var svg;

		if (target.svg == null) {

			svg = build();

			target.svg = svg;

		}

		else {

			svg = target.svg;

			svg.stop();

		}

		svg.opts = opts;

		var ctx = target.getContext('2d');

		if (typeof(s.documentElement) != 'undefined') {

			// load from xml doc

			svg.loadXmlDoc(ctx, s);

		}

		else if (s.substr(0,1) == '<') {

			// load from xml string

			svg.loadXml(ctx, s);

		}

		else {

			// load from url

			svg.load(ctx, s);

		}

	}

	function build() {

		var svg = { };

		svg.FRAMERATE = 30;

		svg.MAX_VIRTUAL_PIXELS = 30000;

		// globals

		svg.init = function(ctx) {

			svg.Definitions = {};

			svg.Styles = {};

			svg.Animations = [];

			svg.Images = [];

			svg.ctx = ctx;

			svg.ViewPort = new (function () {

				this.viewPorts = [];

				this.Clear = function() { this.viewPorts = []; }

				this.SetCurrent = function(width, height) { this.viewPorts.push({ width: width, height: height }); }

				this.RemoveCurrent = function() { this.viewPorts.pop(); }

				this.Current = function() { return this.viewPorts[this.viewPorts.length - 1]; }

				this.width = function() { return this.Current().width; }

				this.height = function() { return this.Current().height; }

				this.ComputeSize = function(d) {

					if (d != null && typeof(d) == 'number') return d;

					if (d == 'x') return this.width();

					if (d == 'y') return this.height();

					return Math.sqrt(Math.pow(this.width(), 2) + Math.pow(this.height(), 2)) / Math.sqrt(2);

				}

			});

		}

		svg.init();

		// images loaded

		svg.ImagesLoaded = function() {

			for (var i=0; i<svg.Images.length; i++) {

				if (!svg.Images[i].loaded) return false;

			}

			return true;

		}

		// trim

		svg.trim = function(s) { return s.replace(/^\s+|\s+$/g, ''); }

		// compress spaces

		svg.compressSpaces = function(s) { return s ? s.replace(/[\s\r\t\n]+/gm,' ') : ''; }

		// ajax

		svg.ajax = function(url) {

			var AJAX;

			if(window.XMLHttpRequest){AJAX=new XMLHttpRequest();}

			else{AJAX=new ActiveXObject('Microsoft.XMLHTTP');}

			if(AJAX){

			   AJAX.open('GET',url,false);

			   AJAX.send(null);

			   return AJAX.responseText;

			}

			return null;

		}

		// parse xml

		svg.parseXml = function(xml) {

			if (window.DOMParser)

			{

				var parser = new DOMParser();

				return parser.parseFromString(xml, 'text/xml');

			}

			else

			{

				xml = xml.replace(/<!DOCTYPE svg[^>]*>/, '');

				var xmlDoc = new ActiveXObject('Microsoft.XMLDOM');

				xmlDoc.async = 'false';

				xmlDoc.loadXML(xml);

				return xmlDoc;

			}

		}

		svg.Property = function(name, value) {

			this.name = name;

			this.value = value;

			this.hasValue = function() {

				return (this.value != null && this.value !== '');

			}

			// return the numerical value of the property

			this.numValue = function() {

				if (!this.hasValue()) return 0;

				var n = parseFloat(this.value);

				if ((this.value + '').match(/%$/)) {

					n = n / 100.0;

				}

				return n;

			}

			this.valueOrDefault = function(def) {

				if (this.hasValue()) return this.value;

				return def;

			}

			this.numValueOrDefault = function(def) {

				if (this.hasValue()) return this.numValue();

				return def;

			}

			/* EXTENSIONS */

			var that = this;

			// color extensions

			this.Color = {

				// augment the current color value with the opacity

				addOpacity: function(opacity) {

					var newValue = that.value;

					if (opacity != null && opacity != '') {

						var color = new RGBColor(that.value);

						if (color.ok) {

							newValue = 'rgba(' + color.r + ', ' + color.g + ', ' + color.b + ', ' + opacity + ')';

						}

					}

					return new svg.Property(that.name, newValue);

				}

			}

			// definition extensions

			this.Definition = {

				// get the definition from the definitions table

				getDefinition: function() {

					var name = that.value.replace(/^(url\()?#([^\)]+)\)?$/, '$2');

					return svg.Definitions[name];

				},

				isUrl: function() {

					return that.value.indexOf('url(') == 0

				},

				getFillStyle: function(e) {

					var def = this.getDefinition();

					// gradient

					if (def != null && def.createGradient) {

						return def.createGradient(svg.ctx, e);

					}

					// pattern

					if (def != null && def.createPattern) {

						return def.createPattern(svg.ctx, e);

					}

					return null;

				}

			}

			// length extensions

			this.Length = {

				DPI: function(viewPort) {

					return 96.0; // TODO: compute?

				},

				EM: function(viewPort) {

					var em = 12;

					var fontSize = new svg.Property('fontSize', svg.Font.Parse(svg.ctx.font).fontSize);

					if (fontSize.hasValue()) em = fontSize.Length.toPixels(viewPort);

					return em;

				},

				// get the length as pixels

				toPixels: function(viewPort) {

					if (!that.hasValue()) return 0;

					var s = that.value+'';

					if (s.match(/em$/)) return that.numValue() * this.EM(viewPort);

					if (s.match(/ex$/)) return that.numValue() * this.EM(viewPort) / 2.0;

					if (s.match(/px$/)) return that.numValue();

					if (s.match(/pt$/)) return that.numValue() * 1.25;

					if (s.match(/pc$/)) return that.numValue() * 15;

					if (s.match(/cm$/)) return that.numValue() * this.DPI(viewPort) / 2.54;

					if (s.match(/mm$/)) return that.numValue() * this.DPI(viewPort) / 25.4;

					if (s.match(/in$/)) return that.numValue() * this.DPI(viewPort);

					if (s.match(/%$/)) return that.numValue() * svg.ViewPort.ComputeSize(viewPort);

					return that.numValue();

				}

			}

			// time extensions

			this.Time = {

				// get the time as milliseconds

				toMilliseconds: function() {

					if (!that.hasValue()) return 0;

					var s = that.value+'';

					if (s.match(/s$/)) return that.numValue() * 1000;

					if (s.match(/ms$/)) return that.numValue();

					return that.numValue();

				}

			}

			// angle extensions

			this.Angle = {

				// get the angle as radians

				toRadians: function() {

					if (!that.hasValue()) return 0;

					var s = that.value+'';

					if (s.match(/deg$/)) return that.numValue() * (Math.PI / 180.0);

					if (s.match(/grad$/)) return that.numValue() * (Math.PI / 200.0);

					if (s.match(/rad$/)) return that.numValue();

					return that.numValue() * (Math.PI / 180.0);

				}

			}

		}

		// fonts

		svg.Font = new (function() {

			this.Styles = ['normal','italic','oblique','inherit'];

			this.Variants = ['normal','small-caps','inherit'];

			this.Weights = ['normal','bold','bolder','lighter','100','200','300','400','500','600','700','800','900','inherit'];

			this.CreateFont = function(fontStyle, fontVariant, fontWeight, fontSize, fontFamily, inherit) {

				var f = inherit != null ? this.Parse(inherit) : this.CreateFont('', '', '', '', '', svg.ctx.font);

				return {

					fontFamily: fontFamily || f.fontFamily,

					fontSize: fontSize || f.fontSize,

					fontStyle: fontStyle || f.fontStyle,

					fontWeight: fontWeight || f.fontWeight,

					fontVariant: fontVariant || f.fontVariant,

					toString: function () { return [this.fontStyle, this.fontVariant, this.fontWeight, this.fontSize, this.fontFamily].join(' ') }

				}

			}

			var that = this;

			this.Parse = function(s) {

				var f = {};

				var d = svg.trim(svg.compressSpaces(s || '')).split(' ');

				var set = { fontSize: false, fontStyle: false, fontWeight: false, fontVariant: false }

				var ff = '';

				for (var i=0; i<d.length; i++) {

					if (!set.fontStyle && that.Styles.indexOf(d[i]) != -1) { if (d[i] != 'inherit') f.fontStyle = d[i]; set.fontStyle = true; }

					else if (!set.fontVariant && that.Variants.indexOf(d[i]) != -1) { if (d[i] != 'inherit') f.fontVariant = d[i]; set.fontStyle = set.fontVariant = true;	}

					else if (!set.fontWeight && that.Weights.indexOf(d[i]) != -1) {	if (d[i] != 'inherit') f.fontWeight = d[i]; set.fontStyle = set.fontVariant = set.fontWeight = true; }

					else if (!set.fontSize) { if (d[i] != 'inherit') f.fontSize = d[i].split('/')[0]; set.fontStyle = set.fontVariant = set.fontWeight = set.fontSize = true; }

					else { if (d[i] != 'inherit') ff += d[i]; }

				} if (ff != '') f.fontFamily = ff;

				return f;

			}

		});

		// points and paths

		svg.ToNumberArray = function(s) {

			var a = svg.trim(svg.compressSpaces((s || '').replace(/,/g, ' '))).split(' ');

			for (var i=0; i<a.length; i++) {

				a[i] = parseFloat(a[i]);

			}

			return a;

		}

		svg.Point = function(x, y) {

			this.x = x;

			this.y = y;

			this.angleTo = function(p) {

				return Math.atan2(p.y - this.y, p.x - this.x);

			}

			this.applyTransform = function(v) {

				var xp = this.x * v[0] + this.y * v[2] + v[4];

				var yp = this.x * v[1] + this.y * v[3] + v[5];

				this.x = xp;

				this.y = yp;

			}

		}

		svg.CreatePoint = function(s) {

			var a = svg.ToNumberArray(s);

			return new svg.Point(a[0], a[1]);

		}

		svg.CreatePath = function(s) {

			var a = svg.ToNumberArray(s);

			var path = [];

			for (var i=0; i<a.length; i+=2) {

				path.push(new svg.Point(a[i], a[i+1]));

			}

			return path;

		}

		// bounding box

		svg.BoundingBox = function(x1, y1, x2, y2) { // pass in initial points if you want

			this.x1 = Number.NaN;

			this.y1 = Number.NaN;

			this.x2 = Number.NaN;

			this.y2 = Number.NaN;

			this.x = function() { return this.x1; }

			this.y = function() { return this.y1; }

			this.width = function() { return this.x2 - this.x1; }

			this.height = function() { return this.y2 - this.y1; }

			this.addPoint = function(x, y) {

				if (x != null) {

					if (isNaN(this.x1) || isNaN(this.x2)) {

						this.x1 = x;

						this.x2 = x;

					}

					if (x < this.x1) this.x1 = x;

					if (x > this.x2) this.x2 = x;

				}

				if (y != null) {

					if (isNaN(this.y1) || isNaN(this.y2)) {

						this.y1 = y;

						this.y2 = y;

					}

					if (y < this.y1) this.y1 = y;

					if (y > this.y2) this.y2 = y;

				}

			}

			this.addX = function(x) { this.addPoint(x, null); }

			this.addY = function(y) { this.addPoint(null, y); }

			this.addBoundingBox = function(bb) {

				this.addPoint(bb.x1, bb.y1);

				this.addPoint(bb.x2, bb.y2);

			}

			this.addQuadraticCurve = function(p0x, p0y, p1x, p1y, p2x, p2y) {

				var cp1x = p0x + 2/3 * (p1x - p0x); // CP1 = QP0 + 2/3 *(QP1-QP0)

				var cp1y = p0y + 2/3 * (p1y - p0y); // CP1 = QP0 + 2/3 *(QP1-QP0)

				var cp2x = cp1x + 1/3 * (p2x - p0x); // CP2 = CP1 + 1/3 *(QP2-QP0)

				var cp2y = cp1y + 1/3 * (p2y - p0y); // CP2 = CP1 + 1/3 *(QP2-QP0)

				this.addBezierCurve(p0x, p0y, cp1x, cp2x, cp1y,	cp2y, p2x, p2y);

			}

			this.addBezierCurve = function(p0x, p0y, p1x, p1y, p2x, p2y, p3x, p3y) {

				// from http://blog.hackers-cafe.net/2009/06/how-to-calculate-bezier-curves-bounding.html

				var p0 = [p0x, p0y], p1 = [p1x, p1y], p2 = [p2x, p2y], p3 = [p3x, p3y];

				this.addPoint(p0[0], p0[1]);

				this.addPoint(p3[0], p3[1]);

				for (i=0; i<=1; i++) {

					var f = function(t) {

						return Math.pow(1-t, 3) * p0[i]

						+ 3 * Math.pow(1-t, 2) * t * p1[i]

						+ 3 * (1-t) * Math.pow(t, 2) * p2[i]

						+ Math.pow(t, 3) * p3[i];

					}

					var b = 6 * p0[i] - 12 * p1[i] + 6 * p2[i];

					var a = -3 * p0[i] + 9 * p1[i] - 9 * p2[i] + 3 * p3[i];

					var c = 3 * p1[i] - 3 * p0[i];

					if (a == 0) {

						if (b == 0) continue;

						var t = -c / b;

						if (0 < t && t < 1) {

							if (i == 0) this.addX(f(t));

							if (i == 1) this.addY(f(t));

						}

						continue;

					}

					var b2ac = Math.pow(b, 2) - 4 * c * a;

					if (b2ac < 0) continue;

					var t1 = (-b + Math.sqrt(b2ac)) / (2 * a);

					if (0 < t1 && t1 < 1) {

						if (i == 0) this.addX(f(t1));

						if (i == 1) this.addY(f(t1));

					}

					var t2 = (-b - Math.sqrt(b2ac)) / (2 * a);

					if (0 < t2 && t2 < 1) {

						if (i == 0) this.addX(f(t2));

						if (i == 1) this.addY(f(t2));

					}

				}

			}

			this.isPointInBox = function(x, y) {

				return (this.x1 <= x && x <= this.x2 && this.y1 <= y && y <= this.y2);

			}

			this.addPoint(x1, y1);

			this.addPoint(x2, y2);

		}

		// transforms

		svg.Transform = function(v) {

			var that = this;

			this.Type = {}

			// translate

			this.Type.translate = function(s) {

				this.p = svg.CreatePoint(s);

				this.apply = function(ctx) {

					ctx.translate(this.p.x || 0.0, this.p.y || 0.0);

				}

				this.applyToPoint = function(p) {

					p.applyTransform([1, 0, 0, 1, this.p.x || 0.0, this.p.y || 0.0]);

				}

			}

			// rotate

			this.Type.rotate = function(s) {

				var a = svg.ToNumberArray(s);

				this.angle = new svg.Property('angle', a[0]);

				this.cx = a[1] || 0;

				this.cy = a[2] || 0;

				this.apply = function(ctx) {

					ctx.translate(this.cx, this.cy);

					ctx.rotate(this.angle.Angle.toRadians());

					ctx.translate(-this.cx, -this.cy);

				}

				this.applyToPoint = function(p) {

					var a = this.angle.Angle.toRadians();

					p.applyTransform([1, 0, 0, 1, this.p.x || 0.0, this.p.y || 0.0]);

					p.applyTransform([Math.cos(a), Math.sin(a), -Math.sin(a), Math.cos(a), 0, 0]);

					p.applyTransform([1, 0, 0, 1, -this.p.x || 0.0, -this.p.y || 0.0]);

				}

			}

			this.Type.scale = function(s) {

				this.p = svg.CreatePoint(s);

				this.apply = function(ctx) {

					ctx.scale(this.p.x || 1.0, this.p.y || this.p.x || 1.0);

				}

				this.applyToPoint = function(p) {

					p.applyTransform([this.p.x || 0.0, 0, 0, this.p.y || 0.0, 0, 0]);

				}

			}

			this.Type.matrix = function(s) {

				this.m = svg.ToNumberArray(s);

				this.apply = function(ctx) {

					ctx.transform(this.m[0], this.m[1], this.m[2], this.m[3], this.m[4], this.m[5]);

				}

				this.applyToPoint = function(p) {

					p.applyTransform(this.m);

				}

			}

			this.Type.SkewBase = function(s) {

				this.base = that.Type.matrix;

				this.base(s);

				this.angle = new svg.Property('angle', s);

			}

			this.Type.SkewBase.prototype = new this.Type.matrix;

			this.Type.skewX = function(s) {

				this.base = that.Type.SkewBase;

				this.base(s);

				this.m = [1, 0, Math.tan(this.angle.Angle.toRadians()), 1, 0, 0];

			}

			this.Type.skewX.prototype = new this.Type.SkewBase;

			this.Type.skewY = function(s) {

				this.base = that.Type.SkewBase;

				this.base(s);

				this.m = [1, Math.tan(this.angle.Angle.toRadians()), 0, 1, 0, 0];

			}

			this.Type.skewY.prototype = new this.Type.SkewBase;

			this.transforms = [];

			this.apply = function(ctx) {

				for (var i=0; i<this.transforms.length; i++) {

					this.transforms[i].apply(ctx);

				}

			}

			this.applyToPoint = function(p) {

				for (var i=0; i<this.transforms.length; i++) {

					this.transforms[i].applyToPoint(p);

				}

			}

			var data = svg.trim(svg.compressSpaces(v)).split(/\s(?=[a-z])/);

			for (var i=0; i<data.length; i++) {

				var type = data[i].split('(')[0];

				var s = data[i].split('(')[1].replace(')','');

				var transform = new this.Type[type](s);

				this.transforms.push(transform);

			}

		}

		// aspect ratio

		svg.AspectRatio = function(ctx, aspectRatio, width, desiredWidth, height, desiredHeight, minX, minY, refX, refY) {

			// aspect ratio - http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute

			aspectRatio = svg.compressSpaces(aspectRatio);

			aspectRatio = aspectRatio.replace(/^defer\s/,''); // ignore defer

			var align = aspectRatio.split(' ')[0] || 'xMidYMid';

			var meetOrSlice = aspectRatio.split(' ')[1] || 'meet';

			// calculate scale

			var scaleX = width / desiredWidth;

			var scaleY = height / desiredHeight;

			var scaleMin = Math.min(scaleX, scaleY);

			var scaleMax = Math.max(scaleX, scaleY);

			if (meetOrSlice == 'meet') { desiredWidth *= scaleMin; desiredHeight *= scaleMin; }

			if (meetOrSlice == 'slice') { desiredWidth *= scaleMax; desiredHeight *= scaleMax; }

			refX = new svg.Property('refX', refX);

			refY = new svg.Property('refY', refY);

			if (refX.hasValue() && refY.hasValue()) {

				ctx.translate(-scaleMin * refX.Length.toPixels('x'), -scaleMin * refY.Length.toPixels('y'));

			}

			else {

				// align

				if (align.match(/^xMid/) && ((meetOrSlice == 'meet' && scaleMin == scaleY) || (meetOrSlice == 'slice' && scaleMax == scaleY))) ctx.translate(width / 2.0 - desiredWidth / 2.0, 0);

				if (align.match(/YMid$/) && ((meetOrSlice == 'meet' && scaleMin == scaleX) || (meetOrSlice == 'slice' && scaleMax == scaleX))) ctx.translate(0, height / 2.0 - desiredHeight / 2.0);

				if (align.match(/^xMax/) && ((meetOrSlice == 'meet' && scaleMin == scaleY) || (meetOrSlice == 'slice' && scaleMax == scaleY))) ctx.translate(width - desiredWidth, 0);

				if (align.match(/YMax$/) && ((meetOrSlice == 'meet' && scaleMin == scaleX) || (meetOrSlice == 'slice' && scaleMax == scaleX))) ctx.translate(0, height - desiredHeight);

			}

			// scale

			if (align == 'none') ctx.scale(scaleX, scaleY);

			else if (meetOrSlice == 'meet') ctx.scale(scaleMin, scaleMin);

			else if (meetOrSlice == 'slice') ctx.scale(scaleMax, scaleMax);

			// translate

			ctx.translate(minX == null ? 0 : -minX, minY == null ? 0 : -minY);

		}

		// elements

		svg.Element = {}

		svg.Element.ElementBase = function(node) {

			this.attributes = {};

			this.styles = {};

			this.children = [];

			// get or create attribute

			this.attribute = function(name, createIfNotExists) {

				var a = this.attributes[name];

				if (a != null) return a;

				a = new svg.Property(name, '');

				if (createIfNotExists == true) this.attributes[name] = a;

				return a;

			}

			// get or create style, crawls up node tree

			this.style = function(name, createIfNotExists) {

				var s = this.styles[name];

				if (s != null) return s;

				var a = this.attribute(name);

				if (a != null && a.hasValue()) {

					return a;

				}

				var p = this.parent;

				if (p != null) {

					var ps = p.style(name);

					if (ps != null && ps.hasValue()) {

						return ps;

					}

				}

				s = new svg.Property(name, '');

				if (createIfNotExists == true) this.styles[name] = s;

				return s;

			}

			// base render

			this.render = function(ctx) {

				// don't render display=none

				if (this.style('display').value == 'none') return;

				// don't render visibility=hidden

				if (this.attribute('visibility').value == 'hidden') return;

				ctx.save();

					this.setContext(ctx);

						// mask

						if (this.attribute('mask').hasValue()) {

							var mask = this.attribute('mask').Definition.getDefinition();

							if (mask != null) mask.apply(ctx, this);

						}

						else if (this.style('filter').hasValue()) {

							var filter = this.style('filter').Definition.getDefinition();

							if (filter != null) filter.apply(ctx, this);

						}

						else this.renderChildren(ctx);

					this.clearContext(ctx);

				ctx.restore();

			}

			// base set context

			this.setContext = function(ctx) {

				// OVERRIDE ME!

			}

			// base clear context

			this.clearContext = function(ctx) {

				// OVERRIDE ME!

			}

			// base render children

			this.renderChildren = function(ctx) {

				for (var i=0; i<this.children.length; i++) {

					this.children[i].render(ctx);

				}

			}

			this.addChild = function(childNode, create) {

				var child = childNode;

				if (create) child = svg.CreateElement(childNode);

				child.parent = this;

				this.children.push(child);

			}

			if (node != null && node.nodeType == 1) { //ELEMENT_NODE

				// add children

				for (var i=0; i<node.childNodes.length; i++) {

					var childNode = node.childNodes[i];

					if (childNode.nodeType == 1) this.addChild(childNode, true); //ELEMENT_NODE

				}

				// add attributes

				for (var i=0; i<node.attributes.length; i++) {

					var attribute = node.attributes[i];

					this.attributes[attribute.nodeName] = new svg.Property(attribute.nodeName, attribute.nodeValue);

				}