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highcharts-release/modules/canvas-tools.src.js

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1/**
* @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
*
*/
8function RGBColor(color_string)
9{
  this.ok = false;
11
  // strip any leading #
  if (color_string.charAt(0) == '#') { // remove # if any
      color_string = color_string.substr(1,6);
  }
16
  color_string = color_string.replace(/ /g,'');
  color_string = color_string.toLowerCase();
19
  // 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
173
  // 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)
              ];
          }
      }
  ];
210
  // 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;
      }
223
  }
225
  // 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);
230
  // 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;
  }
244
  // help
  this.getHelpXML = function () {
247
      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;
      }
260
      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);
281
          } catch(e){}
      }
      return xml;
285
  }
287
288}
289
290/**
* @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/
*
*/
299if(!window.console) {
window.console = {};
window.console.log = function(str) {};
window.console.dir = function(str) {};
303}
304
305if(!Array.prototype.indexOf){
Array.prototype.indexOf = function(obj){
for(var i=0; i<this.length; i++){
	if(this[i]==obj){
		return i;
	}
}
return -1;
}
314}
315
316(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);
}
}
381
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;
}
420
// 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);
		}
								
		// add tag styles
		var styles = svg.Styles[node.nodeName];
		if (styles != null) {
			for (var name in styles) {
				this.styles[name] = styles[name];
			}
		}					
		
		// add class styles
		if (this.attribute('class').hasValue()) {
			var classes = svg.compressSpaces(this.attribute('class').value).split(' ');
			for (var j=0; j<classes.length; j++) {
				styles = svg.Styles['.'+classes[j]];
				if (styles != null) {
					for (var name in styles) {
						this.styles[name] = styles[name];
					}
				}
				styles = svg.Styles[node.nodeName+'.'+classes[j]];
				if (styles != null) {
					for (var name in styles) {
						this.styles[name] = styles[name];
					}
				}
			}
		}
		
		// add inline styles
		if (this.attribute('style').hasValue()) {
			var styles = this.attribute('style').value.split(';');
			for (var i=0; i<styles.length; i++) {
				if (svg.trim(styles[i]) != '') {
					var style = styles[i].split(':');
					var name = svg.trim(style[0]);
					var value = svg.trim(style[1]);
					this.styles[name] = new svg.Property(name, value);
				}
			}
		}	
1038
		// add id
		if (this.attribute('id').hasValue()) {
			if (svg.Definitions[this.attribute('id').value] == null) {
				svg.Definitions[this.attribute('id').value] = this;
			}
		}
	}
}

svg.Element.RenderedElementBase = function(node) {
	this.base = svg.Element.ElementBase;
	this.base(node);
	
	this.setContext = function(ctx) {
		// fill
		if (this.style('fill').Definition.isUrl()) {
			var fs = this.style('fill').Definition.getFillStyle(this);
			if (fs != null) ctx.fillStyle = fs;
		}
		else if (this.style('fill').hasValue()) {
			var fillStyle = this.style('fill');
			if (this.style('fill-opacity').hasValue()) fillStyle = fillStyle.Color.addOpacity(this.style('fill-opacity').value);
			ctx.fillStyle = (fillStyle.value == 'none' ? 'rgba(0,0,0,0)' : fillStyle.value);
		}
							
		// stroke
		if (this.style('stroke').Definition.isUrl()) {
			var fs = this.style('stroke').Definition.getFillStyle(this);
			if (fs != null) ctx.strokeStyle = fs;
		}
		else if (this.style('stroke').hasValue()) {
			var strokeStyle = this.style('stroke');
			if (this.style('stroke-opacity').hasValue()) strokeStyle = strokeStyle.Color.addOpacity(this.style('stroke-opacity').value);
			ctx.strokeStyle = (strokeStyle.value == 'none' ? 'rgba(0,0,0,0)' : strokeStyle.value);
		}
		if (this.style('stroke-width').hasValue()) ctx.lineWidth = this.style('stroke-width').Length.toPixels();
		if (this.style('stroke-linecap').hasValue()) ctx.lineCap = this.style('stroke-linecap').value;
		if (this.style('stroke-linejoin').hasValue()) ctx.lineJoin = this.style('stroke-linejoin').value;
		if (this.style('stroke-miterlimit').hasValue()) ctx.miterLimit = this.style('stroke-miterlimit').value;
1078
		// font
		if (typeof(ctx.font) != 'undefined') {
			ctx.font = svg.Font.CreateFont( 
				this.style('font-style').value, 
				this.style('font-variant').value, 
				this.style('font-weight').value, 
				this.style('font-size').hasValue() ? this.style('font-size').Length.toPixels() + 'px' : '', 
				this.style('font-family').value).toString();
		}
		
		// transform
		if (this.attribute('transform').hasValue()) { 
			var transform = new svg.Transform(this.attribute('transform').value);
			transform.apply(ctx);
		}
		
		// clip
		if (this.attribute('clip-path').hasValue()) {
			var clip = this.attribute('clip-path').Definition.getDefinition();
			if (clip != null) clip.apply(ctx);
		}
		
		// opacity
		if (this.style('opacity').hasValue()) {
			ctx.globalAlpha = this.style('opacity').numValue();
		}
	}		
}
svg.Element.RenderedElementBase.prototype = new svg.Element.ElementBase;

svg.Element.PathElementBase = function(node) {
	this.base = svg.Element.RenderedElementBase;
	this.base(node);
	
	this.path = function(ctx) {
		if (ctx != null) ctx.beginPath();
		return new svg.BoundingBox();
	}
	
	this.renderChildren = function(ctx) {
		this.path(ctx);
		svg.Mouse.checkPath(this, ctx);
		if (ctx.fillStyle != '') ctx.fill();
		if (ctx.strokeStyle != '') ctx.stroke();
		
		var markers = this.getMarkers();
		if (markers != null) {
			if (this.style('marker-start').Definition.isUrl()) {
				var marker = this.style('marker-start').Definition.getDefinition();
				marker.render(ctx, markers[0][0], markers[0][1]);
			}
			if (this.style('marker-mid').Definition.isUrl()) {
				var marker = this.style('marker-mid').Definition.getDefinition();
				for (var i=1;i<markers.length-1;i++) {
					marker.render(ctx, markers[i][0], markers[i][1]);
				}
			}
			if (this.style('marker-end').Definition.isUrl()) {
				var marker = this.style('marker-end').Definition.getDefinition();
				marker.render(ctx, markers[markers.length-1][0], markers[markers.length-1][1]);
			}
		}					
	}
	
	this.getBoundingBox = function() {
		return this.path();
	}
	
	this.getMarkers = function() {
		return null;
	}
}
svg.Element.PathElementBase.prototype = new svg.Element.RenderedElementBase;

// svg element
svg.Element.svg = function(node) {
	this.base = svg.Element.RenderedElementBase;
	this.base(node);
	
	this.baseClearContext = this.clearContext;
	this.clearContext = function(ctx) {
		this.baseClearContext(ctx);
		svg.ViewPort.RemoveCurrent();
	}
	
	this.baseSetContext = this.setContext;
	this.setContext = function(ctx) {
		// initial values
		ctx.strokeStyle = 'rgba(0,0,0,0)';
		ctx.lineCap = 'butt';
		ctx.lineJoin = 'miter';
		ctx.miterLimit = 4;			
	
		this.baseSetContext(ctx);
		
		// create new view port
		if (this.attribute('x').hasValue() && this.attribute('y').hasValue()) {
			ctx.translate(this.attribute('x').Length.toPixels('x'), this.attribute('y').Length.toPixels('y'));
		}
		
		var width = svg.ViewPort.width();
		var height = svg.ViewPort.height();
		if (typeof(this.root) == 'undefined' && this.attribute('width').hasValue() && this.attribute('height').hasValue()) {
			width = this.attribute('width').Length.toPixels('x');
			height = this.attribute('height').Length.toPixels('y');
			
			var x = 0;
			var y = 0;
			if (this.attribute('refX').hasValue() && this.attribute('refY').hasValue()) {
				x = -this.attribute('refX').Length.toPixels('x');
				y = -this.attribute('refY').Length.toPixels('y');
			}
			
			ctx.beginPath();
			ctx.moveTo(x, y);
			ctx.lineTo(width, y);
			ctx.lineTo(width, height);
			ctx.lineTo(x, height);
			ctx.closePath();
			ctx.clip();
		}
		svg.ViewPort.SetCurrent(width, height);	
				
		// viewbox
		if (this.attribute('viewBox').hasValue()) {				
			var viewBox = svg.ToNumberArray(this.attribute('viewBox').value);
			var minX = viewBox[0];
			var minY = viewBox[1];
			width = viewBox[2];
			height = viewBox[3];
			
			svg.AspectRatio(ctx,
							this.attribute('preserveAspectRatio').value, 
							svg.ViewPort.width(), 
							width,
							svg.ViewPort.height(),
							height,
							minX,
							minY,
							this.attribute('refX').value,
							this.attribute('refY').value);
								
			svg.ViewPort.RemoveCurrent();	
			svg.ViewPort.SetCurrent(viewBox[2], viewBox[3]);						
		}				
	}
}
svg.Element.svg.prototype = new svg.Element.RenderedElementBase;
1227
// rect element
svg.Element.rect = function(node) {
	this.base = svg.Element.PathElementBase;
	this.base(node);
	
	this.path = function(ctx) {
		var x = this.attribute('x').Length.toPixels('x');
		var y = this.attribute('y').Length.toPixels('y');
		var width = this.attribute('width').Length.toPixels('x');
		var height = this.attribute('height').Length.toPixels('y');
		var rx = this.attribute('rx').Length.toPixels('x');
		var ry = this.attribute('ry').Length.toPixels('y');
		if (this.attribute('rx').hasValue() && !this.attribute('ry').hasValue()) ry = rx;
		if (this.attribute('ry').hasValue() && !this.attribute('rx').hasValue()) rx = ry;
		
		if (ctx != null) {
			ctx.beginPath();
			ctx.moveTo(x + rx, y);
			ctx.lineTo(x + width - rx, y);
			ctx.quadraticCurveTo(x + width, y, x + width, y + ry)
			ctx.lineTo(x + width, y + height - ry);
			ctx.quadraticCurveTo(x + width, y + height, x + width - rx, y + height)
			ctx.lineTo(x + rx, y + height);
			ctx.quadraticCurveTo(x, y + height, x, y + height - ry)
			ctx.lineTo(x, y + ry);
			ctx.quadraticCurveTo(x, y, x + rx, y)
			ctx.closePath();
		}
		
		return new svg.BoundingBox(x, y, x + width, y + height);
	}
}
svg.Element.rect.prototype = new svg.Element.PathElementBase;

// circle element
svg.Element.circle = function(node) {
	this.base = svg.Element.PathElementBase;
	this.base(node);
	
	this.path = function(ctx) {
		var cx = this.attribute('cx').Length.toPixels('x');
		var cy = this.attribute('cy').Length.toPixels('y');
		var r = this.attribute('r').Length.toPixels();
	
		if (ctx != null) {
			ctx.beginPath();
			ctx.arc(cx, cy, r, 0, Math.PI * 2, true); 
			ctx.closePath();
		}
		
		return new svg.BoundingBox(cx - r, cy - r, cx + r, cy + r);
	}
}
svg.Element.circle.prototype = new svg.Element.PathElementBase;	
1282
// ellipse element
svg.Element.ellipse = function(node) {
	this.base = svg.Element.PathElementBase;
	this.base(node);
	
	this.path = function(ctx) {
		var KAPPA = 4 * ((Math.sqrt(2) - 1) / 3);
		var rx = this.attribute('rx').Length.toPixels('x');
		var ry = this.attribute('ry').Length.toPixels('y');
		var cx = this.attribute('cx').Length.toPixels('x');
		var cy = this.attribute('cy').Length.toPixels('y');
		
		if (ctx != null) {
			ctx.beginPath();
			ctx.moveTo(cx, cy - ry);
			ctx.bezierCurveTo(cx + (KAPPA * rx), cy - ry,  cx + rx, cy - (KAPPA * ry), cx + rx, cy);
			ctx.bezierCurveTo(cx + rx, cy + (KAPPA * ry), cx + (KAPPA * rx), cy + ry, cx, cy + ry);
			ctx.bezierCurveTo(cx - (KAPPA * rx), cy + ry, cx - rx, cy + (KAPPA * ry), cx - rx, cy);
			ctx.bezierCurveTo(cx - rx, cy - (KAPPA * ry), cx - (KAPPA * rx), cy - ry, cx, cy - ry);
			ctx.closePath();
		}
		
		return new svg.BoundingBox(cx - rx, cy - ry, cx + rx, cy + ry);
	}
}
svg.Element.ellipse.prototype = new svg.Element.PathElementBase;			

// line element
svg.Element.line = function(node) {
	this.base = svg.Element.PathElementBase;
	this.base(node);
	
	this.getPoints = function() {
		return [
			new svg.Point(this.attribute('x1').Length.toPixels('x'), this.attribute('y1').Length.toPixels('y')),
			new svg.Point(this.attribute('x2').Length.toPixels('x'), this.attribute('y2').Length.toPixels('y'))];
	}
						
	this.path = function(ctx) {
		var points = this.getPoints();
		
		if (ctx != null) {
			ctx.beginPath();
			ctx.moveTo(points[0].x, points[0].y);
			ctx.lineTo(points[1].x, points[1].y);
		}
		
		return new svg.BoundingBox(points[0].x, points[0].y, points[1].x, points[1].y);
	}
	
	this.getMarkers = function() {
		var points = this.getPoints();	
		var a = points[0].angleTo(points[1]);
		return [[points[0], a], [points[1], a]];
	}
}
svg.Element.line.prototype = new svg.Element.PathElementBase;		
		
// polyline element
svg.Element.polyline = function(node) {
	this.base = svg.Element.PathElementBase;
	this.base(node);
	
	this.points = svg.CreatePath(this.attribute('points').value);
	this.path = function(ctx) {
		var bb = new svg.BoundingBox(this.points[0].x, this.points[0].y);
		if (ctx != null) {
			ctx.beginPath();
			ctx.moveTo(this.points[0].x, this.points[0].y);
		}
		for (var i=1; i<this.points.length; i++) {
			bb.addPoint(this.points[i].x, this.points[i].y);
			if (ctx != null) ctx.lineTo(this.points[i].x, this.points[i].y);
		}
		return bb;
	}
	
	this.getMarkers = function() {
		var markers = [];
		for (var i=0; i<this.points.length - 1; i++) {
			markers.push([this.points[i], this.points[i].angleTo(this.points[i+1])]);
		}
		markers.push([this.points[this.points.length-1], markers[markers.length-1][1]]);
		return markers;
	}			
}
svg.Element.polyline.prototype = new svg.Element.PathElementBase;				
		
// polygon element
svg.Element.polygon = function(node) {
	this.base = svg.Element.polyline;
	this.base(node);
	
	this.basePath = this.path;
	this.path = function(ctx) {
		var bb = this.basePath(ctx);
		if (ctx != null) {
			ctx.lineTo(this.points[0].x, this.points[0].y);
			ctx.closePath();
		}
		return bb;
	}
}
svg.Element.polygon.prototype = new svg.Element.polyline;
1387
// path element
svg.Element.path = function(node) {
	this.base = svg.Element.PathElementBase;
	this.base(node);
			
	var d = this.attribute('d').value;
	// TODO: convert to real lexer based on http://www.w3.org/TR/SVG11/paths.html#PathDataBNF
	d = d.replace(/,/gm,' '); // get rid of all commas
	d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([MmZzLlHhVvCcSsQqTtAa])/gm,'$1 $2'); // separate commands from commands
	d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([MmZzLlHhVvCcSsQqTtAa])/gm,'$1 $2'); // separate commands from commands
	d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([^\s])/gm,'$1 $2'); // separate commands from points
	d = d.replace(/([^\s])([MmZzLlHhVvCcSsQqTtAa])/gm,'$1 $2'); // separate commands from points
	d = d.replace(/([0-9])([+\-])/gm,'$1 $2'); // separate digits when no comma
	d = d.replace(/(\.[0-9]*)(\.)/gm,'$1 $2'); // separate digits when no comma
	d = d.replace(/([Aa](\s+[0-9]+){3})\s+([01])\s*([01])/gm,'$1 $3 $4 '); // shorthand elliptical arc path syntax
	d = svg.compressSpaces(d); // compress multiple spaces
	d = svg.trim(d);
	this.PathParser = new (function(d) {
		this.tokens = d.split(' ');
		
		this.reset = function() {
			this.i = -1;
			this.command = '';
			this.previousCommand = '';
			this.start = new svg.Point(0, 0);
			this.control = new svg.Point(0, 0);
			this.current = new svg.Point(0, 0);
			this.points = [];
			this.angles = [];
		}
						
		this.isEnd = function() {
			return this.i >= this.tokens.length - 1;
		}
		
		this.isCommandOrEnd = function() {
			if (this.isEnd()) return true;
			return this.tokens[this.i + 1].match(/^[A-Za-z]$/) != null;
		}
		
		this.isRelativeCommand = function() {
			return this.command == this.command.toLowerCase();
		}
					
		this.getToken = function() {
			this.i = this.i + 1;
			return this.tokens[this.i];
		}
		
		this.getScalar = function() {
			return parseFloat(this.getToken());
		}
		
		this.nextCommand = function() {
			this.previousCommand = this.command;
			this.command = this.getToken();
		}				
		
		this.getPoint = function() {
			var p = new svg.Point(this.getScalar(), this.getScalar());
			return this.makeAbsolute(p);
		}
		
		this.getAsControlPoint = function() {
			var p = this.getPoint();
			this.control = p;
			return p;
		}
		
		this.getAsCurrentPoint = function() {
			var p = this.getPoint();
			this.current = p;
			return p;	
		}
		
		this.getReflectedControlPoint = function() {
			if (this.previousCommand.toLowerCase() != 'c' && this.previousCommand.toLowerCase() != 's') {
				return this.current;
			}
			
			// reflect point
			var p = new svg.Point(2 * this.current.x - this.control.x, 2 * this.current.y - this.control.y);					
			return p;
		}
		
		this.makeAbsolute = function(p) {
			if (this.isRelativeCommand()) {
				p.x = this.current.x + p.x;
				p.y = this.current.y + p.y;
			}
			return p;
		}
		
		this.addMarker = function(p, from, priorTo) {
			// if the last angle isn't filled in because we didn't have this point yet ...
			if (priorTo != null && this.angles.length > 0 && this.angles[this.angles.length-1] == null) {
				this.angles[this.angles.length-1] = this.points[this.points.length-1].angleTo(priorTo);
			}
			this.addMarkerAngle(p, from == null ? null : from.angleTo(p));
		}
		
		this.addMarkerAngle = function(p, a) {
			this.points.push(p);
			this.angles.push(a);
		}				
		
		this.getMarkerPoints = function() { return this.points; }
		this.getMarkerAngles = function() {
			for (var i=0; i<this.angles.length; i++) {
				if (this.angles[i] == null) {
					for (var j=i+1; j<this.angles.length; j++) {
						if (this.angles[j] != null) {
							this.angles[i] = this.angles[j];
							break;
						}
					}
				}
			}
			return this.angles;
		}
	})(d);
1509
	this.path = function(ctx) {
		var pp = this.PathParser;
		pp.reset();
1513
		var bb = new svg.BoundingBox();
		if (ctx != null) ctx.beginPath();
		while (!pp.isEnd()) {
			pp.nextCommand();
			switch (pp.command.toUpperCase()) {
			case 'M':
				var p = pp.getAsCurrentPoint();
				pp.addMarker(p);
				bb.addPoint(p.x, p.y);
				if (ctx != null) ctx.moveTo(p.x, p.y);
				pp.start = pp.current;
				while (!pp.isCommandOrEnd()) {
					var p = pp.getAsCurrentPoint();
					pp.addMarker(p, pp.start);
					bb.addPoint(p.x, p.y);
					if (ctx != null) ctx.lineTo(p.x, p.y);
				}
				break;
			case 'L':
				while (!pp.isCommandOrEnd()) {
					var c = pp.current;
					var p = pp.getAsCurrentPoint();
					pp.addMarker(p, c);
					bb.addPoint(p.x, p.y);
					if (ctx != null) ctx.lineTo(p.x, p.y);
				}
				break;
			case 'H':
				while (!pp.isCommandOrEnd()) {
					var newP = new svg.Point((pp.isRelativeCommand() ? pp.current.x : 0) + pp.getScalar(), pp.current.y);
					pp.addMarker(newP, pp.current);
					pp.current = newP;
					bb.addPoint(pp.current.x, pp.current.y);
					if (ctx != null) ctx.lineTo(pp.current.x, pp.current.y);
				}
				break;
			case 'V':
				while (!pp.isCommandOrEnd()) {
					var newP = new svg.Point(pp.current.x, (pp.isRelativeCommand() ? pp.current.y : 0) + pp.getScalar());
					pp.addMarker(newP, pp.current);
					pp.current = newP;
					bb.addPoint(pp.current.x, pp.current.y);
					if (ctx != null) ctx.lineTo(pp.current.x, pp.current.y);
				}
				break;
			case 'C':
				while (!pp.isCommandOrEnd()) {
					var curr = pp.current;
					var p1 = pp.getPoint();
					var cntrl = pp.getAsControlPoint();
					var cp = pp.getAsCurrentPoint();
					pp.addMarker(cp, cntrl, p1);
					bb.addBezierCurve(curr.x, curr.y, p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
					if (ctx != null) ctx.bezierCurveTo(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
				}
				break;
			case 'S':
				while (!pp.isCommandOrEnd()) {
					var curr = pp.current;
					var p1 = pp.getReflectedControlPoint();
					var cntrl = pp.getAsControlPoint();
					var cp = pp.getAsCurrentPoint();
					pp.addMarker(cp, cntrl, p1);
					bb.addBezierCurve(curr.x, curr.y, p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
					if (ctx != null) ctx.bezierCurveTo(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
				}
				break;
			case 'Q':
				while (!pp.isCommandOrEnd()) {
					var curr = pp.current;
					var cntrl = pp.getAsControlPoint();
					var cp = pp.getAsCurrentPoint();
					pp.addMarker(cp, cntrl, cntrl);
					bb.addQuadraticCurve(curr.x, curr.y, cntrl.x, cntrl.y, cp.x, cp.y);
					if (ctx != null) ctx.quadraticCurveTo(cntrl.x, cntrl.y, cp.x, cp.y);
				}
				break;
			case 'T':
				while (!pp.isCommandOrEnd()) {
					var curr = pp.current;
					var cntrl = pp.getReflectedControlPoint();
					pp.control = cntrl;
					var cp = pp.getAsCurrentPoint();
					pp.addMarker(cp, cntrl, cntrl);
					bb.addQuadraticCurve(curr.x, curr.y, cntrl.x, cntrl.y, cp.x, cp.y);
					if (ctx != null) ctx.quadraticCurveTo(cntrl.x, cntrl.y, cp.x, cp.y);
				}
				break;
			case 'A':
				while (!pp.isCommandOrEnd()) {
				    var curr = pp.current;
					var rx = pp.getScalar();
					var ry = pp.getScalar();
					var xAxisRotation = pp.getScalar() * (Math.PI / 180.0);
					var largeArcFlag = pp.getScalar();
					var sweepFlag = pp.getScalar();
					var cp = pp.getAsCurrentPoint();
1611
					// Conversion from endpoint to center parameterization
					// http://www.w3.org/TR/SVG11/implnote.html#ArcImplementationNotes
					// x1', y1'
					var currp = new svg.Point(
						Math.cos(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.sin(xAxisRotation) * (curr.y - cp.y) / 2.0,
						-Math.sin(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.cos(xAxisRotation) * (curr.y - cp.y) / 2.0
					);
					// adjust radii
					var l = Math.pow(currp.x,2)/Math.pow(rx,2)+Math.pow(currp.y,2)/Math.pow(ry,2);
					if (l > 1) {
						rx *= Math.sqrt(l);
						ry *= Math.sqrt(l);
					}
					// cx', cy'
					var s = (largeArcFlag == sweepFlag ? -1 : 1) * Math.sqrt(
						((Math.pow(rx,2)*Math.pow(ry,2))-(Math.pow(rx,2)*Math.pow(currp.y,2))-(Math.pow(ry,2)*Math.pow(currp.x,2))) /
						(Math.pow(rx,2)*Math.pow(currp.y,2)+Math.pow(ry,2)*Math.pow(currp.x,2))
					);
					if (isNaN(s)) s = 0;
					var cpp = new svg.Point(s * rx * currp.y / ry, s * -ry * currp.x / rx);
					// cx, cy
					var centp = new svg.Point(
						(curr.x + cp.x) / 2.0 + Math.cos(xAxisRotation) * cpp.x - Math.sin(xAxisRotation) * cpp.y,
						(curr.y + cp.y) / 2.0 + Math.sin(xAxisRotation) * cpp.x + Math.cos(xAxisRotation) * cpp.y
					);
					// vector magnitude
					var m = function(v) { return Math.sqrt(Math.pow(v[0],2) + Math.pow(v[1],2)); }
					// ratio between two vectors
					var r = function(u, v) { return (u[0]*v[0]+u[1]*v[1]) / (m(u)*m(v)) }
					// angle between two vectors
					var a = function(u, v) { return (u[0]*v[1] < u[1]*v[0] ? -1 : 1) * Math.acos(r(u,v)); }
					// initial angle
					var a1 = a([1,0], [(currp.x-cpp.x)/rx,(currp.y-cpp.y)/ry]);
					// angle delta
					var u = [(currp.x-cpp.x)/rx,(currp.y-cpp.y)/ry];
					var v = [(-currp.x-cpp.x)/rx,(-currp.y-cpp.y)/ry];
					var ad = a(u, v);
					if (r(u,v) <= -1) ad = Math.PI;
					if (r(u,v) >= 1) ad = 0;
1651
					if (sweepFlag == 0 && ad > 0) ad = ad - 2 * Math.PI;
					if (sweepFlag == 1 && ad < 0) ad = ad + 2 * Math.PI;
1654
					// for markers
					var halfWay = new svg.Point(
						centp.x - rx * Math.cos((a1 + ad) / 2),
						centp.y - ry * Math.sin((a1 + ad) / 2)
					);
					pp.addMarkerAngle(halfWay, (a1 + ad) / 2 + (sweepFlag == 0 ? 1 : -1) * Math.PI / 2);
					pp.addMarkerAngle(cp, ad + (sweepFlag == 0 ? 1 : -1) * Math.PI / 2);
1662
					bb.addPoint(cp.x, cp.y); // TODO: this is too naive, make it better
					if (ctx != null) {
						var r = rx > ry ? rx : ry;
						var sx = rx > ry ? 1 : rx / ry;
						var sy = rx > ry ? ry / rx : 1;
1668
						ctx.translate(centp.x, centp.y);
						ctx.rotate(xAxisRotation);
						ctx.scale(sx, sy);
						ctx.arc(0, 0, r, a1, a1 + ad, 1 - sweepFlag);
						ctx.scale(1/sx, 1/sy);
						ctx.rotate(-xAxisRotation);
						ctx.translate(-centp.x, -centp.y);
					}
				}
				break;
			case 'Z':
				if (ctx != null) ctx.closePath();
				pp.current = pp.start;
			}
		}
1684
		return bb;
	}
1687
	this.getMarkers = function() {
		var points = this.PathParser.getMarkerPoints();
		var angles = this.PathParser.getMarkerAngles();
		
		var markers = [];
		for (var i=0; i<points.length; i++) {
			markers.push([points[i], angles[i]]);
		}
		return markers;
	}
}
svg.Element.path.prototype = new svg.Element.PathElementBase;

// pattern element
svg.Element.pattern = function(node) {
	this.base = svg.Element.ElementBase;
	this.base(node);
	
	this.createPattern = function(ctx, element) {
		// render me using a temporary svg element
		var tempSvg = new svg.Element.svg();
		tempSvg.attributes['viewBox'] = new svg.Property('viewBox', this.attribute('viewBox').value);
		tempSvg.attributes['x'] = new svg.Property('x', this.attribute('x').value);
		tempSvg.attributes['y'] = new svg.Property('y', this.attribute('y').value);
		tempSvg.attributes['width'] = new svg.Property('width', this.attribute('width').value);
		tempSvg.attributes['height'] = new svg.Property('height', this.attribute('height').value);
		tempSvg.children = this.children;
		
		var c = document.createElement('canvas');
		c.width = this.attribute('width').Length.toPixels('x');
		c.height = this.attribute('height').Length.toPixels('y');
		tempSvg.render(c.getContext('2d'));		
		return ctx.createPattern(c, 'repeat');
	}
}
svg.Element.pattern.prototype = new svg.Element.ElementBase;

// marker element
svg.Element.marker = function(node) {
	this.base = svg.Element.ElementBase;
	this.base(node);
	
	this.baseRender = this.render;
	this.render = function(ctx, point, angle) {
		ctx.translate(point.x, point.y);
		if (this.attribute('orient').valueOrDefault('auto') == 'auto') ctx.rotate(angle);
		if (this.attribute('markerUnits').valueOrDefault('strokeWidth') == 'strokeWidth') ctx.scale(ctx.lineWidth, ctx.lineWidth);
		ctx.save();
					
		// render me using a temporary svg element
		var tempSvg = new svg.Element.svg();
		tempSvg.attributes['viewBox'] = new svg.Property('viewBox', this.attribute('viewBox').value);
		tempSvg.attributes['refX'] = new svg.Property('refX', this.attribute('refX').value);
		tempSvg.attributes['refY'] = new svg.Property('refY', this.attribute('refY').value);
		tempSvg.attributes['width'] = new svg.Property('width', this.attribute('markerWidth').value);
		tempSvg.attributes['height'] = new svg.Property('height', this.attribute('markerHeight').value);
		tempSvg.attributes['fill'] = new svg.Property('fill', this.attribute('fill').valueOrDefault('black'));
		tempSvg.attributes['stroke'] = new svg.Property('stroke', this.attribute('stroke').valueOrDefault('none'));
		tempSvg.children = this.children;
		tempSvg.render(ctx);
		
		ctx.restore();
		if (this.attribute('markerUnits').valueOrDefault('strokeWidth') == 'strokeWidth') ctx.scale(1/ctx.lineWidth, 1/ctx.lineWidth);
		if (this.attribute('orient').valueOrDefault('auto') == 'auto') ctx.rotate(-angle);
		ctx.translate(-point.x, -point.y);
	}
}
svg.Element.marker.prototype = new svg.Element.ElementBase;

// definitions element
svg.Element.defs = function(node) {
	this.base = svg.Element.ElementBase;
	this.base(node);	
	
	this.render = function(ctx) {
		// NOOP
	}
}
svg.Element.defs.prototype = new svg.Element.ElementBase;

// base for gradients
svg.Element.GradientBase = function(node) {
	this.base = svg.Element.ElementBase;
	this.base(node);
	
	this.gradientUnits = this.attribute('gradientUnits').valueOrDefault('objectBoundingBox');
	
	this.stops = [];			
	for (var i=0; i<this.children.length; i++) {
		var child = this.children[i];
		this.stops.push(child);
	}	
	
	this.getGradient = function() {
		// OVERRIDE ME!
	}			
1784
	this.createGradient = function(ctx, element) {
		var stopsContainer = this;
		if (this.attribute('xlink:href').hasValue()) {
			stopsContainer = this.attribute('xlink:href').Definition.getDefinition();
		}
	
		var g = this.getGradient(ctx, element);
		for (var i=0; i<stopsContainer.stops.length; i++) {
			g.addColorStop(stopsContainer.stops[i].offset, stopsContainer.stops[i].color);
		}
		
		if (this.attribute('gradientTransform').hasValue()) {
			// render as transformed pattern on temporary canvas
			var rootView = svg.ViewPort.viewPorts[0];
			
			var rect = new svg.Element.rect();
			rect.attributes['x'] = new svg.Property('x', -svg.MAX_VIRTUAL_PIXELS/3.0);
			rect.attributes['y'] = new svg.Property('y', -svg.MAX_VIRTUAL_PIXELS/3.0);
			rect.attributes['width'] = new svg.Property('width', svg.MAX_VIRTUAL_PIXELS);
			rect.attributes['height'] = new svg.Property('height', svg.MAX_VIRTUAL_PIXELS);
			
			var group = new svg.Element.g();
			group.attributes['transform'] = new svg.Property('transform', this.attribute('gradientTransform').value);
			group.children = [ rect ];
			
			var tempSvg = new svg.Element.svg();
			tempSvg.attributes['x'] = new svg.Property('x', 0);
			tempSvg.attributes['y'] = new svg.Property('y', 0);
			tempSvg.attributes['width'] = new svg.Property('width', rootView.width);
			tempSvg.attributes['height'] = new svg.Property('height', rootView.height);
			tempSvg.children = [ group ];
			
			var c = document.createElement('canvas');
			c.width = rootView.width;
			c.height = rootView.height;
			var tempCtx = c.getContext('2d');
			tempCtx.fillStyle = g;
			tempSvg.render(tempCtx);		
			return tempCtx.createPattern(c, 'no-repeat');
		}
		
		return g;				
	}
}
svg.Element.GradientBase.prototype = new svg.Element.ElementBase;

// linear gradient element
svg.Element.linearGradient = function(node) {
	this.base = svg.Element.GradientBase;
	this.base(node);
	
	this.getGradient = function(ctx, element) {
		var bb = element.getBoundingBox();
		
		var x1 = (this.gradientUnits == 'objectBoundingBox' 
			? bb.x() + bb.width() * this.attribute('x1').numValue() 
			: this.attribute('x1').Length.toPixels('x'));
		var y1 = (this.gradientUnits == 'objectBoundingBox' 
			? bb.y() + bb.height() * this.attribute('y1').numValue()
			: this.attribute('y1').Length.toPixels('y'));
		var x2 = (this.gradientUnits == 'objectBoundingBox' 
			? bb.x() + bb.width() * this.attribute('x2').numValue()
			: this.attribute('x2').Length.toPixels('x'));
		var y2 = (this.gradientUnits == 'objectBoundingBox' 
			? bb.y() + bb.height() * this.attribute('y2').numValue()
			: this.attribute('y2').Length.toPixels('y'));
1851
		return ctx.createLinearGradient(x1, y1, x2, y2);
	}
}
svg.Element.linearGradient.prototype = new svg.Element.GradientBase;

// radial gradient element
svg.Element.radialGradient = function(node) {
	this.base = svg.Element.GradientBase;
	this.base(node);
	
	this.getGradient = function(ctx, element) {
		var bb = element.getBoundingBox();
		
		var cx = (this.gradientUnits == 'objectBoundingBox' 
			? bb.x() + bb.width() * this.attribute('cx').numValue() 
			: this.attribute('cx').Length.toPixels('x'));
		var cy = (this.gradientUnits == 'objectBoundingBox' 
			? bb.y() + bb.height() * this.attribute('cy').numValue() 
			: this.attribute('cy').Length.toPixels('y'));
		
		var fx = cx;
		var fy = cy;
		if (this.attribute('fx').hasValue()) {
			fx = (this.gradientUnits == 'objectBoundingBox' 
			? bb.x() + bb.width() * this.attribute('fx').numValue() 
			: this.attribute('fx').Length.toPixels('x'));
		}
		if (this.attribute('fy').hasValue()) {
			fy = (this.gradientUnits == 'objectBoundingBox' 
			? bb.y() + bb.height() * this.attribute('fy').numValue() 
			: this.attribute('fy').Length.toPixels('y'));
		}
		
		var r = (this.gradientUnits == 'objectBoundingBox' 
			? (bb.width() + bb.height()) / 2.0 * this.attribute('r').numValue()
			: this.attribute('r').Length.toPixels());
		
		return ctx.createRadialGradient(fx, fy, 0, cx, cy, r);
	}
}
svg.Element.radialGradient.prototype = new svg.Element.GradientBase;

// gradient stop element
svg.Element.stop = function(node) {
	this.base = svg.Element.ElementBase;
	this.base(node);
	
	this.offset = this.attribute('offset').numValue();
	
	var stopColor = this.style('stop-color');
	if (this.style('stop-opacity').hasValue()) stopColor = stopColor.Color.addOpacity(this.style('stop-opacity').value);
	this.color = stopColor.value;
}
svg.Element.stop.prototype = new svg.Element.ElementBase;

// animation base element
svg.Element.AnimateBase = function(node) {
	this.base = svg.Element.ElementBase;
	this.base(node);
	
	svg.Animations.push(this);
	
	this.duration = 0.0;
	this.begin = this.attribute('begin').Time.toMilliseconds();
	this.maxDuration = this.begin + this.attribute('dur').Time.toMilliseconds();
	
	this.getProperty = function() {
		var attributeType = this.attribute('attributeType').value;
		var attributeName = this.attribute('attributeName').value;
		
		if (attributeType == 'CSS') {
			return this.parent.style(attributeName, true);
		}
		return this.parent.attribute(attributeName, true);			
	};
	
	this.initialValue = null;
	this.removed = false;			
1930
	this.calcValue = function() {
		// OVERRIDE ME!
		return '';
	}
	
	this.update = function(delta) {	
		// set initial value
		if (this.initialValue == null) {
			this.initialValue = this.getProperty().value;
		}
	
		// if we're past the end time
		if (this.duration > this.maxDuration) {
			// loop for indefinitely repeating animations
			if (this.attribute('repeatCount').value == 'indefinite') {
				this.duration = 0.0
			}
			else if (this.attribute('fill').valueOrDefault('remove') == 'remove' && !this.removed) {
				this.removed = true;
				this.getProperty().value = this.initialValue;
				return true;
			}
			else {
				return false; // no updates made
			}
		}			
		this.duration = this.duration + delta;
	
		// if we're past the begin time
		var updated = false;
		if (this.begin < this.duration) {
			var newValue = this.calcValue(); // tween
			
			if (this.attribute('type').hasValue()) {
				// for transform, etc.
				var type = this.attribute('type').value;
				newValue = type + '(' + newValue + ')';
			}
			
			this.getProperty().value = newValue;
			updated = true;
		}
		
		return updated;
	}
	
	// fraction of duration we've covered
	this.progress = function() {
		return ((this.duration - this.begin) / (this.maxDuration - this.begin));
	}			
}
svg.Element.AnimateBase.prototype = new svg.Element.ElementBase;

// animate element
svg.Element.animate = function(node) {
	this.base = svg.Element.AnimateBase;
	this.base(node);
	
	this.calcValue = function() {
		var from = this.attribute('from').numValue();
		var to = this.attribute('to').numValue();
		
		// tween value linearly
		return from + (to - from) * this.progress(); 
	};
}
svg.Element.animate.prototype = new svg.Element.AnimateBase;
	
// animate color element
svg.Element.animateColor = function(node) {
	this.base = svg.Element.AnimateBase;
	this.base(node);
2003
	this.calcValue = function() {
		var from = new RGBColor(this.attribute('from').value);
		var to = new RGBColor(this.attribute('to').value);
		
		if (from.ok && to.ok) {
			// tween color linearly
			var r = from.r + (to.r - from.r) * this.progress();
			var g = from.g + (to.g - from.g) * this.progress();
			var b = from.b + (to.b - from.b) * this.progress();
			return 'rgb('+parseInt(r,10)+','+parseInt(g,10)+','+parseInt(b,10)+')';
		}
		return this.attribute('from').value;
	};
}
svg.Element.animateColor.prototype = new svg.Element.AnimateBase;

// animate transform element
svg.Element.animateTransform = function(node) {
	this.base = svg.Element.animate;
	this.base(node);
}
svg.Element.animateTransform.prototype = new svg.Element.animate;

// font element
svg.Element.font = function(node) {
	this.base = svg.Element.ElementBase;
	this.base(node);
2031
	this.horizAdvX = this.attribute('horiz-adv-x').numValue();			
	
	this.isRTL = false;
	this.isArabic = false;
	this.fontFace = null;
	this.missingGlyph = null;
	this.glyphs = [];			
	for (var i=0; i<this.children.length; i++) {
		var child = this.children[i];
		if (child.type == 'font-face') {
			this.fontFace = child;
			if (child.style('font-family').hasValue()) {
				svg.Definitions[child.style('font-family').value] = this;
			}
		}
		else if (child.type == 'missing-glyph') this.missingGlyph = child;
		else if (child.type == 'glyph') {
			if (child.arabicForm != '') {
				this.isRTL = true;
				this.isArabic = true;
				if (typeof(this.glyphs[child.unicode]) == 'undefined') this.glyphs[child.unicode] = [];
				this.glyphs[child.unicode][child.arabicForm] = child;
			}
			else {
				this.glyphs[child.unicode] = child;
			}
		}
	}	
}
svg.Element.font.prototype = new svg.Element.ElementBase;

// font-face element
svg.Element.fontface = function(node) {
	this.base = svg.Element.ElementBase;
	this.base(node);	
	
	this.ascent = this.attribute('ascent').value;
	this.descent = this.attribute('descent').value;
	this.unitsPerEm = this.attribute('units-per-em').numValue();				
}
svg.Element.fontface.prototype = new svg.Element.ElementBase;

// missing-glyph element
svg.Element.missingglyph = function(node) {
	this.base = svg.Element.path;
	this.base(node);	
	
	this.horizAdvX = 0;
}
svg.Element.missingglyph.prototype = new svg.Element.path;

// glyph element
svg.Element.glyph = function(node) {
	this.base = svg.Element.path;
	this.base(node);	
	
	this.horizAdvX = this.attribute('horiz-adv-x').numValue();
	this.unicode = this.attribute('unicode').value;
	this.arabicForm = this.attribute('arabic-form').value;
}
svg.Element.glyph.prototype = new svg.Element.path;

// text element
svg.Element.text = function(node) {
	this.base = svg.Element.RenderedElementBase;
	this.base(node);
	
	if (node != null) {
		// add children
		this.children = [];
		for (var i=0; i<node.childNodes.length; i++) {
			var childNode = node.childNodes[i];
			if (childNode.nodeType == 1) { // capture tspan and tref nodes
				this.addChild(childNode, true);
			}
			else if (childNode.nodeType == 3) { // capture text
				this.addChild(new svg.Element.tspan(childNode), false);
			}
		}
	}
	
	this.baseSetContext = this.setContext;
	this.setContext = function(ctx) {
		this.baseSetContext(ctx);
		if (this.style('dominant-baseline').hasValue()) ctx.textBaseline = this.style('dominant-baseline').value;
		if (this.style('alignment-baseline').hasValue()) ctx.textBaseline = this.style('alignment-baseline').value;
	}
	
	this.renderChildren = function(ctx) {
		var textAnchor = this.style('text-anchor').valueOrDefault('start');
		var x = this.attribute('x').Length.toPixels('x');
		var y = this.attribute('y').Length.toPixels('y');
		for (var i=0; i<this.children.length; i++) {
			var child = this.children[i];
		
			if (child.attribute('x').hasValue()) {
				child.x = child.attribute('x').Length.toPixels('x');
			}
			else {
				if (child.attribute('dx').hasValue()) x += child.attribute('dx').Length.toPixels('x');
				child.x = x;
			}
			
			var childLength = child.measureText ? child.measureText(ctx) : 0;
			if (textAnchor != 'start' && (i==0 || child.attribute('x').hasValue())) { // new group?
				// loop through rest of children
				var groupLength = childLength;
				for (var j=i+1; j<this.children.length; j++) {
					var childInGroup = this.children[j];
					if (childInGroup.attribute('x').hasValue()) break; // new group
					groupLength += childInGroup.measureText ? childInGroup.measureText(ctx) : 0;
				}
				child.x -= (textAnchor == 'end' ? groupLength : groupLength / 2.0);
			}
			x = child.x + childLength;
			
			if (child.attribute('y').hasValue()) {
				child.y = child.attribute('y').Length.toPixels('y');
			}
			else {
				if (child.attribute('dy').hasValue()) y += child.attribute('dy').Length.toPixels('y');
				child.y = y;
			}	
			y = child.y;
			
			child.render(ctx);
		}
	}
}
svg.Element.text.prototype = new svg.Element.RenderedElementBase;

// text base
svg.Element.TextElementBase = function(node) {
	this.base = svg.Element.RenderedElementBase;
	this.base(node);
	
	this.getGlyph = function(font, text, i) {
		var c = text[i];
		var glyph = null;
		if (font.isArabic) {
			var arabicForm = 'isolated';
			if ((i==0 || text[i-1]==' ') && i<text.length-2 && text[i+1]!=' ') arabicForm = 'terminal'; 
			if (i>0 && text[i-1]!=' ' && i<text.length-2 && text[i+1]!=' ') arabicForm = 'medial';
			if (i>0 && text[i-1]!=' ' && (i == text.length-1 || text[i+1]==' ')) arabicForm = 'initial';
			if (typeof(font.glyphs[c]) != 'undefined') {
				glyph = font.glyphs[c][arabicForm];
				if (glyph == null && font.glyphs[c].type == 'glyph') glyph = font.glyphs[c];
			}
		}
		else {
			glyph = font.glyphs[c];
		}
		if (glyph == null) glyph = font.missingGlyph;
		return glyph;
	}
	
	this.renderChildren = function(ctx) {
		var customFont = this.parent.style('font-family').Definition.getDefinition();
		if (customFont != null) {
			var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
			var fontStyle = this.parent.style('font-style').valueOrDefault(svg.Font.Parse(svg.ctx.font).fontStyle);
			var text = this.getText();
			if (customFont.isRTL) text = text.split("").reverse().join("");
			
			var dx = svg.ToNumberArray(this.parent.attribute('dx').value);
			for (var i=0; i<text.length; i++) {
				var glyph = this.getGlyph(customFont, text, i);
				var scale = fontSize / customFont.fontFace.unitsPerEm;
				ctx.translate(this.x, this.y);
				ctx.scale(scale, -scale);
				var lw = ctx.lineWidth;
				ctx.lineWidth = ctx.lineWidth * customFont.fontFace.unitsPerEm / fontSize;
				if (fontStyle == 'italic') ctx.transform(1, 0, .4, 1, 0, 0);
				glyph.render(ctx);
				if (fontStyle == 'italic') ctx.transform(1, 0, -.4, 1, 0, 0);
				ctx.lineWidth = lw;
				ctx.scale(1/scale, -1/scale);
				ctx.translate(-this.x, -this.y);	
				
				this.x += fontSize * (glyph.horizAdvX || customFont.horizAdvX) / customFont.fontFace.unitsPerEm;
				if (typeof(dx[i]) != 'undefined' && !isNaN(dx[i])) {
					this.x += dx[i];
				}
			}
			return;
		}
	
		if (ctx.strokeStyle != '') ctx.strokeText(svg.compressSpaces(this.getText()), this.x, this.y);
		if (ctx.fillStyle != '') ctx.fillText(svg.compressSpaces(this.getText()), this.x, this.y);
	}
	
	this.getText = function() {
		// OVERRIDE ME
	}
	
	this.measureText = function(ctx) {
		var customFont = this.parent.style('font-family').Definition.getDefinition();
		if (customFont != null) {
			var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
			var measure = 0;
			var text = this.getText();
			if (customFont.isRTL) text = text.split("").reverse().join("");
			var dx = svg.ToNumberArray(this.parent.attribute('dx').value);
			for (var i=0; i<text.length; i++) {
				var glyph = this.getGlyph(customFont, text, i);
				measure += (glyph.horizAdvX || customFont.horizAdvX) * fontSize / customFont.fontFace.unitsPerEm;
				if (typeof(dx[i]) != 'undefined' && !isNaN(dx[i])) {
					measure += dx[i];
				}
			}
			return measure;
		}
	
		var textToMeasure = svg.compressSpaces(this.getText());
		if (!ctx.measureText) return textToMeasure.length * 10;
		
		ctx.save();
		this.setContext(ctx);
		var width = ctx.measureText(textToMeasure).width;
		ctx.restore();
		return width;
	}
}
svg.Element.TextElementBase.prototype = new svg.Element.RenderedElementBase;

// tspan 
svg.Element.tspan = function(node) {
	this.base = svg.Element.TextElementBase;
	this.base(node);
	
	this.text = node.nodeType == 3 ? node.nodeValue : // text
				node.childNodes.length > 0 ? node.childNodes[0].nodeValue : // element
				node.text;
	this.getText = function() {
		return this.text;
	}
}
svg.Element.tspan.prototype = new svg.Element.TextElementBase;

// tref
svg.Element.tref = function(node) {
	this.base = svg.Element.TextElementBase;
	this.base(node);
	
	this.getText = function() {
		var element = this.attribute('xlink:href').Definition.getDefinition();
		if (element != null) return element.children[0].getText();
	}
}
svg.Element.tref.prototype = new svg.Element.TextElementBase;		

// a element
svg.Element.a = function(node) {
	this.base = svg.Element.TextElementBase;
	this.base(node);
	
	this.hasText = true;
	for (var i=0; i<node.childNodes.length; i++) {
		if (node.childNodes[i].nodeType != 3) this.hasText = false;
	}
	
	// this might contain text
	this.text = this.hasText ? node.childNodes[0].nodeValue : '';
	this.getText = function() {
		return this.text;
	}		
2298
	this.baseRenderChildren = this.renderChildren;
	this.renderChildren = function(ctx) {
		if (this.hasText) {
			// render as text element
			this.baseRenderChildren(ctx);
			var fontSize = new svg.Property('fontSize', svg.Font.Parse(svg.ctx.font).fontSize);
			svg.Mouse.checkBoundingBox(this, new svg.BoundingBox(this.x, this.y - fontSize.Length.toPixels('y'), this.x + this.measureText(ctx), this.y));					
		}
		else {
			// render as temporary group
			var g = new svg.Element.g();
			g.children = this.children;
			g.parent = this;
			g.render(ctx);
		}
	}
	
	this.onclick = function() {
		window.open(this.attribute('xlink:href').value);
	}
	
	this.onmousemove = function() {
		svg.ctx.canvas.style.cursor = 'pointer';
	}
}
svg.Element.a.prototype = new svg.Element.TextElementBase;		

// image element
svg.Element.image = function(node) {
	this.base = svg.Element.RenderedElementBase;
	this.base(node);
	
	svg.Images.push(this);
	this.img = document.createElement('img');
	this.loaded = false;
	var that = this;
	this.img.onload = function() { that.loaded = true; }
	this.img.src = this.attribute('xlink:href').value;
	
	this.renderChildren = function(ctx) {
		var x = this.attribute('x').Length.toPixels('x');
		var y = this.attribute('y').Length.toPixels('y');
		
		var width = this.attribute('width').Length.toPixels('x');
		var height = this.attribute('height').Length.toPixels('y');			
		if (width == 0 || height == 0) return;
	
		ctx.save();
		ctx.translate(x, y);
		svg.AspectRatio(ctx,
						this.attribute('preserveAspectRatio').value,
						width,
						this.img.width,
						height,
						this.img.height,
						0,
						0);	
		ctx.drawImage(this.img, 0, 0);			
		ctx.restore();
	}
}
svg.Element.image.prototype = new svg.Element.RenderedElementBase;

// group element
svg.Element.g = function(node) {
	this.base = svg.Element.RenderedElementBase;
	this.base(node);
	
	this.getBoundingBox = function() {
		var bb = new svg.BoundingBox();
		for (var i=0; i<this.children.length; i++) {
			bb.addBoundingBox(this.children[i].getBoundingBox());
		}
		return bb;
	};
}
svg.Element.g.prototype = new svg.Element.RenderedElementBase;
2376
// symbol element
svg.Element.symbol = function(node) {
	this.base = svg.Element.RenderedElementBase;
	this.base(node);
	
	this.baseSetContext = this.setContext;
	this.setContext = function(ctx) {		
		this.baseSetContext(ctx);
		
		// viewbox
		if (this.attribute('viewBox').hasValue()) {				
			var viewBox = svg.ToNumberArray(this.attribute('viewBox').value);
			var minX = viewBox[0];
			var minY = viewBox[1];
			width = viewBox[2];
			height = viewBox[3];
			
			svg.AspectRatio(ctx,
							this.attribute('preserveAspectRatio').value, 
							this.attribute('width').Length.toPixels('x'),
							width,
							this.attribute('height').Length.toPixels('y'),
							height,
							minX,
							minY);
2402
			svg.ViewPort.SetCurrent(viewBox[2], viewBox[3]);						
		}
	}			
}
svg.Element.symbol.prototype = new svg.Element.RenderedElementBase;		
	
// style element
svg.Element.style = function(node) { 
	this.base = svg.Element.ElementBase;
	this.base(node);
	
	// text, or spaces then CDATA
	var css = node.childNodes[0].nodeValue + (node.childNodes.length > 1 ? node.childNodes[1].nodeValue : '');
	css = css.replace(/(\/\*([^*]|[\r\n]|(\*+([^*\/]|[\r\n])))*\*+\/)|(^[\s]*\/\/.*)/gm, ''); // remove comments
	css = svg.compressSpaces(css); // replace whitespace
	var cssDefs = css.split('}');
	for (var i=0; i<cssDefs.length; i++) {
		if (svg.trim(cssDefs[i]) != '') {
			var cssDef = cssDefs[i].split('{');
			var cssClasses = cssDef[0].split(',');
			var cssProps = cssDef[1].split(';');
			for (var j=0; j<cssClasses.length; j++) {
				var cssClass = svg.trim(cssClasses[j]);
				if (cssClass != '') {
					var props = {};
					for (var k=0; k<cssProps.length; k++) {
						var prop = cssProps[k].indexOf(':');
						var name = cssProps[k].substr(0, prop);
						var value = cssProps[k].substr(prop + 1, cssProps[k].length - prop);
						if (name != null && value != null) {
							props[svg.trim(name)] = new svg.Property(svg.trim(name), svg.trim(value));
						}
					}
					svg.Styles[cssClass] = props;
					if (cssClass == '@font-face') {
						var fontFamily = props['font-family'].value.replace(/"/g,'');
						var srcs = props['src'].value.split(',');
						for (var s=0; s<srcs.length; s++) {
							if (srcs[s].indexOf('format("svg")') > 0) {
								var urlStart = srcs[s].indexOf('url');
								var urlEnd = srcs[s].indexOf(')', urlStart);
								var url = srcs[s].substr(urlStart + 5, urlEnd - urlStart - 6);
								var doc = svg.parseXml(svg.ajax(url));
								var fonts = doc.getElementsByTagName('font');
								for (var f=0; f<fonts.length; f++) {
									var font = svg.CreateElement(fonts[f]);
									svg.Definitions[fontFamily] = font;
								}
							}
						}
					}
				}
			}
		}
	}
}
svg.Element.style.prototype = new svg.Element.ElementBase;

// use element 
svg.Element.use = function(node) {
	this.base = svg.Element.RenderedElementBase;
	this.base(node);
	
	this.baseSetContext = this.setContext;
	this.setContext = function(ctx) {
		this.baseSetContext(ctx);
		if (this.attribute('x').hasValue()) ctx.translate(this.attribute('x').Length.toPixels('x'), 0);
		if (this.attribute('y').hasValue()) ctx.translate(0, this.attribute('y').Length.toPixels('y'));
	}
	
	this.getDefinition = function() {
		var element = this.attribute('xlink:href').Definition.getDefinition();
		if (this.attribute('width').hasValue()) element.attribute('width', true).value = this.attribute('width').value;
		if (this.attribute('height').hasValue()) element.attribute('height', true).value = this.attribute('height').value;
		return element;
	}
	
	this.path = function(ctx) {
		var element = this.getDefinition();
		if (element != null) element.path(ctx);
	}
	
	this.renderChildren = function(ctx) {
		var element = this.getDefinition();
		if (element != null) element.render(ctx);
	}
}
svg.Element.use.prototype = new svg.Element.RenderedElementBase;

// mask element
svg.Element.mask = function(node) {
	this.base = svg.Element.ElementBase;
	this.base(node);
				
	this.apply = function(ctx, element) {
		// render as temp svg	
		var x = this.attribute('x').Length.toPixels('x');
		var y = this.attribute('y').Length.toPixels('y');
		var width = this.attribute('width').Length.toPixels('x');
		var height = this.attribute('height').Length.toPixels('y');
		
		// temporarily remove mask to avoid recursion
		var mask = element.attribute('mask').value;
		element.attribute('mask').value = '';
		
			var cMask = document.createElement('canvas');
			cMask.width = x + width;
			cMask.height = y + height;
			var maskCtx = cMask.getContext('2d');
			this.renderChildren(maskCtx);
		
			var c = document.createElement('canvas');
			c.width = x + width;
			c.height = y + height;
			var tempCtx = c.getContext('2d');
			element.render(tempCtx);
			tempCtx.globalCompositeOperation = 'destination-in';
			tempCtx.fillStyle = maskCtx.createPattern(cMask, 'no-repeat');
			tempCtx.fillRect(0, 0, x + width, y + height);
			
			ctx.fillStyle = tempCtx.createPattern(c, 'no-repeat');
			ctx.fillRect(0, 0, x + width, y + height);
			
		// reassign mask
		element.attribute('mask').value = mask;	
	}
	
	this.render = function(ctx) {
		// NO RENDER
	}
}
svg.Element.mask.prototype = new svg.Element.ElementBase;

// clip element
svg.Element.clipPath = function(node) {
	this.base = svg.Element.ElementBase;
	this.base(node);
	
	this.apply = function(ctx) {
		for (var i=0; i<this.children.length; i++) {
			if (this.children[i].path) {
				this.children[i].path(ctx);
				ctx.clip();
			}
		}
	}
	
	this.render = function(ctx) {
		// NO RENDER
	}
}
svg.Element.clipPath.prototype = new svg.Element.ElementBase;
2555
// filters
svg.Element.filter = function(node) {
	this.base = svg.Element.ElementBase;
	this.base(node);
				
	this.apply = function(ctx, element) {
		// render as temp svg	
		var bb = element.getBoundingBox();
		var x = this.attribute('x').Length.toPixels('x');
		var y = this.attribute('y').Length.toPixels('y');
		if (x == 0 || y == 0) {
			x = bb.x1;
			y = bb.y1;
		}
		var width = this.attribute('width').Length.toPixels('x');
		var height = this.attribute('height').Length.toPixels('y');
		if (width == 0 || height == 0) {
			width = bb.width();
			height = bb.height();
		}
		
		// temporarily remove filter to avoid recursion
		var filter = element.style('filter').value;
		element.style('filter').value = '';
		
		// max filter distance
		var extraPercent = .20;
		var px = extraPercent * width;
		var py = extraPercent * height;
		
		var c = document.createElement('canvas');
		c.width = width + 2*px;
		c.height = height + 2*py;
		var tempCtx = c.getContext('2d');
		tempCtx.translate(-x + px, -y + py);
		element.render(tempCtx);
	
		// apply filters
		for (var i=0; i<this.children.length; i++) {
			this.children[i].apply(tempCtx, 0, 0, width + 2*px, height + 2*py);
		}
		
		// render on me
		ctx.drawImage(c, 0, 0, width + 2*px, height + 2*py, x - px, y - py, width + 2*px, height + 2*py);
		
		// reassign filter
		element.style('filter', true).value = filter;	
	}
	
	this.render = function(ctx) {
		// NO RENDER
	}		
}
svg.Element.filter.prototype = new svg.Element.ElementBase;

svg.Element.feGaussianBlur = function(node) {
	this.base = svg.Element.ElementBase;
	this.base(node);	
	
	function make_fgauss(sigma) {
		sigma = Math.max(sigma, 0.01);			      
		var len = Math.ceil(sigma * 4.0) + 1;                     
		mask = [];                               
		for (var i = 0; i < len; i++) {                             
			mask[i] = Math.exp(-0.5 * (i / sigma) * (i / sigma));                                           
		}                                                           
		return mask; 
	}
	
	function normalize(mask) {
		var sum = 0;
		for (var i = 1; i < mask.length; i++) {
			sum += Math.abs(mask[i]);
		}
		sum = 2 * sum + Math.abs(mask[0]);
		for (var i = 0; i < mask.length; i++) {
			mask[i] /= sum;
		}
		return mask;
	}
	
	function convolve_even(src, dst, mask, width, height) {
	  for (var y = 0; y < height; y++) {
		for (var x = 0; x < width; x++) {
		  var a = imGet(src, x, y, width, height, 3)/255;
		  for (var rgba = 0; rgba < 4; rgba++) {					  
			  var sum = mask[0] * (a==0?255:imGet(src, x, y, width, height, rgba)) * (a==0||rgba==3?1:a);
			  for (var i = 1; i < mask.length; i++) {
				var a1 = imGet(src, Math.max(x-i,0), y, width, height, 3)/255;
			    var a2 = imGet(src, Math.min(x+i, width-1), y, width, height, 3)/255;
				sum += mask[i] * 
				  ((a1==0?255:imGet(src, Math.max(x-i,0), y, width, height, rgba)) * (a1==0||rgba==3?1:a1) + 
				   (a2==0?255:imGet(src, Math.min(x+i, width-1), y, width, height, rgba)) * (a2==0||rgba==3?1:a2));
			  }
			  imSet(dst, y, x, height, width, rgba, sum);
		  }			  
		}
	  }
	}		
2655
	function imGet(img, x, y, width, height, rgba) {
		return img[y*width*4 + x*4 + rgba];
	}
	
	function imSet(img, x, y, width, height, rgba, val) {
		img[y*width*4 + x*4 + rgba] = val;
	}
				
	function blur(ctx, width, height, sigma)
	{
		var srcData = ctx.getImageData(0, 0, width, height);
		var mask = make_fgauss(sigma);
		mask = normalize(mask);
		tmp = [];
		convolve_even(srcData.data, tmp, mask, width, height);
		convolve_even(tmp, srcData.data, mask, height, width);
		ctx.clearRect(0, 0, width, height);
		ctx.putImageData(srcData, 0, 0);
	}			

	this.apply = function(ctx, x, y, width, height) {
		// assuming x==0 && y==0 for now
		blur(ctx, width, height, this.attribute('stdDeviation').numValue());
	}
}
svg.Element.filter.prototype = new svg.Element.feGaussianBlur;

// title element, do nothing
svg.Element.title = function(node) {
}
svg.Element.title.prototype = new svg.Element.ElementBase;
2687
// desc element, do nothing
svg.Element.desc = function(node) {
}
svg.Element.desc.prototype = new svg.Element.ElementBase;		

svg.Element.MISSING = function(node) {
	console.log('ERROR: Element \'' + node.nodeName + '\' not yet implemented.');
}
svg.Element.MISSING.prototype = new svg.Element.ElementBase;

// element factory
svg.CreateElement = function(node) {	
	var className = node.nodeName.replace(/^[^:]+:/,''); // remove namespace
	className = className.replace(/\-/g,''); // remove dashes
	var e = null;
	if (typeof(svg.Element[className]) != 'undefined') {
		e = new svg.Element[className](node);
	}
	else {
		e = new svg.Element.MISSING(node);
	}
2709
	e.type = node.nodeName;
	return e;
}
		
// load from url
svg.load = function(ctx, url) {
	svg.loadXml(ctx, svg.ajax(url));
}

// load from xml
svg.loadXml = function(ctx, xml) {
	svg.loadXmlDoc(ctx, svg.parseXml(xml));
}

svg.loadXmlDoc = function(ctx, dom) {
	svg.init(ctx);
	
	var mapXY = function(p) {
		var e = ctx.canvas;
		while (e) {
			p.x -= e.offsetLeft;
			p.y -= e.offsetTop;
			e = e.offsetParent;
		}
		if (window.scrollX) p.x += window.scrollX;
		if (window.scrollY) p.y += window.scrollY;
		return p;
	}
	
	// bind mouse
	if (svg.opts['ignoreMouse'] != true) {
		ctx.canvas.onclick = function(e) {
			var p = mapXY(new svg.Point(e != null ? e.clientX : event.clientX, e != null ? e.clientY : event.clientY));
			svg.Mouse.onclick(p.x, p.y);
		};
		ctx.canvas.onmousemove = function(e) {
			var p = mapXY(new svg.Point(e != null ? e.clientX : event.clientX, e != null ? e.clientY : event.clientY));
			svg.Mouse.onmousemove(p.x, p.y);
		};
	}

	var e = svg.CreateElement(dom.documentElement);
	e.root = true;
			
	// render loop
	var isFirstRender = true;
	var draw = function() {
		svg.ViewPort.Clear();
		if (ctx.canvas.parentNode) svg.ViewPort.SetCurrent(ctx.canvas.parentNode.clientWidth, ctx.canvas.parentNode.clientHeight);
	
		if (svg.opts['ignoreDimensions'] != true) {
			// set canvas size
			if (e.style('width').hasValue()) {
				ctx.canvas.width = e.style('width').Length.toPixels('x');
				ctx.canvas.style.width = ctx.canvas.width + 'px';
			}
			if (e.style('height').hasValue()) {
				ctx.canvas.height = e.style('height').Length.toPixels('y');
				ctx.canvas.style.height = ctx.canvas.height + 'px';
			}
		}
		var cWidth = ctx.canvas.clientWidth || ctx.canvas.width;
		var cHeight = ctx.canvas.clientHeight || ctx.canvas.height;
		svg.ViewPort.SetCurrent(cWidth, cHeight);		
		
		if (svg.opts != null && svg.opts['offsetX'] != null) e.attribute('x', true).value = svg.opts['offsetX'];
		if (svg.opts != null && svg.opts['offsetY'] != null) e.attribute('y', true).value = svg.opts['offsetY'];
		if (svg.opts != null && svg.opts['scaleWidth'] != null && svg.opts['scaleHeight'] != null) {
			var xRatio = 1, yRatio = 1;
			if (e.attribute('width').hasValue()) xRatio = e.attribute('width').Length.toPixels('x') / svg.opts['scaleWidth'];
			if (e.attribute('height').hasValue()) yRatio = e.attribute('height').Length.toPixels('y') / svg.opts['scaleHeight'];
		
			e.attribute('width', true).value = svg.opts['scaleWidth'];
			e.attribute('height', true).value = svg.opts['scaleHeight'];			
			e.attribute('viewBox', true).value = '0 0 ' + (cWidth * xRatio) + ' ' + (cHeight * yRatio);
			e.attribute('preserveAspectRatio', true).value = 'none';
		}
	
		// clear and render
		if (svg.opts['ignoreClear'] != true) {
			ctx.clearRect(0, 0, cWidth, cHeight);
		}
		e.render(ctx);
		if (isFirstRender) {
			isFirstRender = false;
			if (svg.opts != null && typeof(svg.opts['renderCallback']) == 'function') svg.opts['renderCallback']();
		}			
	}
	
	var waitingForImages = true;
	if (svg.ImagesLoaded()) {
		waitingForImages = false;
		draw();
	}
	svg.intervalID = setInterval(function() { 
		var needUpdate = false;
		
		if (waitingForImages && svg.ImagesLoaded()) {
			waitingForImages = false;
			needUpdate = true;
		}
	
		// need update from mouse events?
		if (svg.opts['ignoreMouse'] != true) {
			needUpdate = needUpdate | svg.Mouse.hasEvents();
		}
	
		// need update from animations?
		if (svg.opts['ignoreAnimation'] != true) {
			for (var i=0; i<svg.Animations.length; i++) {
				needUpdate = needUpdate | svg.Animations[i].update(1000 / svg.FRAMERATE);
			}
		}
		
		// need update from redraw?
		if (svg.opts != null && typeof(svg.opts['forceRedraw']) == 'function') {
			if (svg.opts['forceRedraw']() == true) needUpdate = true;
		}
		
		// render if needed
		if (needUpdate) {
			draw();				
			svg.Mouse.runEvents(); // run and clear our events
		}
	}, 1000 / svg.FRAMERATE);
}

svg.stop = function() {
	if (svg.intervalID) {
		clearInterval(svg.intervalID);
	}
}

svg.Mouse = new (function() {
	this.events = [];
	this.hasEvents = function() { return this.events.length != 0; }

	this.onclick = function(x, y) {
		this.events.push({ type: 'onclick', x: x, y: y, 
			run: function(e) { if (e.onclick) e.onclick(); }
		});
	}
	
	this.onmousemove = function(x, y) {
		this.events.push({ type: 'onmousemove', x: x, y: y,
			run: function(e) { if (e.onmousemove) e.onmousemove(); }
		});
	}			
	
	this.eventElements = [];
	
	this.checkPath = function(element, ctx) {
		for (var i=0; i<this.events.length; i++) {
			var e = this.events[i];
			if (ctx.isPointInPath && ctx.isPointInPath(e.x, e.y)) this.eventElements[i] = element;
		}
	}
	
	this.checkBoundingBox = function(element, bb) {
		for (var i=0; i<this.events.length; i++) {
			var e = this.events[i];
			if (bb.isPointInBox(e.x, e.y)) this.eventElements[i] = element;
		}			
	}
	
	this.runEvents = function() {
		svg.ctx.canvas.style.cursor = '';
		
		for (var i=0; i<this.events.length; i++) {
			var e = this.events[i];
			var element = this.eventElements[i];
			while (element) {
				e.run(element);
				element = element.parent;
			}
		}		
	
		// done running, clear
		this.events = []; 
		this.eventElements = [];
	}
});

return svg;
}
2895})();
2896
2897if (CanvasRenderingContext2D) {
CanvasRenderingContext2D.prototype.drawSvg = function(s, dx, dy, dw, dh) {
canvg(this.canvas, s, { 
	ignoreMouse: true, 
	ignoreAnimation: true, 
	ignoreDimensions: true, 
	ignoreClear: true, 
	offsetX: dx, 
	offsetY: dy, 
	scaleWidth: dw, 
	scaleHeight: dh
});
}
2910}/**
* @license Highcharts JS v4.2.7 (2016-09-21)
* CanVGRenderer Extension module
*
* (c) 2011-2016 Torstein Honsi, Erik Olsson
*
* License: www.highcharts.com/license
*/
2918
2919(function (Highcharts) {
var UNDEFINED,
win = Highcharts.win,
DIV = 'div',
ABSOLUTE = 'absolute',
RELATIVE = 'relative',
HIDDEN = 'hidden',
VISIBLE = 'visible',
PX = 'px',
css = Highcharts.css,
CanVGRenderer = Highcharts.CanVGRenderer,
SVGRenderer = Highcharts.SVGRenderer,
extend = Highcharts.extend,
merge = Highcharts.merge,
addEvent = Highcharts.addEvent,
createElement = Highcharts.createElement,
discardElement = Highcharts.discardElement;
2936
// Extend CanVG renderer on demand, inherit from SVGRenderer
extend(CanVGRenderer.prototype, SVGRenderer.prototype);
2939
// Add additional functionality:
extend(CanVGRenderer.prototype, {
create: function (chart, container, chartWidth, chartHeight) {
	this.setContainer(container, chartWidth, chartHeight);
	this.configure(chart);
},
setContainer: function (container, chartWidth, chartHeight) {
	var containerStyle = container.style,
		containerParent = container.parentNode,
		containerLeft = containerStyle.left,
		containerTop = containerStyle.top,
		containerOffsetWidth = container.offsetWidth,
		containerOffsetHeight = container.offsetHeight,
		canvas,
		initialHiddenStyle = { visibility: HIDDEN, position: ABSOLUTE };
2955
	this.init(container, chartWidth, chartHeight);
2957
	// add the canvas above it
	canvas = createElement('canvas', {
		width: containerOffsetWidth,
		height: containerOffsetHeight
	}, {
		position: RELATIVE,
		left: containerLeft,
		top: containerTop
	}, container);
	this.canvas = canvas;
2968
	// Create the tooltip line and div, they are placed as siblings to
	// the container (and as direct childs to the div specified in the html page)
	this.ttLine = createElement(DIV, null, initialHiddenStyle, containerParent);
	this.ttDiv = createElement(DIV, null, initialHiddenStyle, containerParent);
	this.ttTimer = UNDEFINED;
2974
	// Move away the svg node to a new div inside the container's parent so we can hide it.
	var hiddenSvg = createElement(DIV, {
		width: containerOffsetWidth,
		height: containerOffsetHeight
	}, {
		visibility: HIDDEN,
		left: containerLeft,
		top: containerTop
	}, containerParent);
	this.hiddenSvg = hiddenSvg;
	hiddenSvg.appendChild(this.box);
},
2987
/**
 * Configures the renderer with the chart. Attach a listener to the event tooltipRefresh.
 **/
configure: function (chart) {
	var renderer = this,
		options = chart.options.tooltip,
		borderWidth = options.borderWidth,
		tooltipDiv = renderer.ttDiv,
		tooltipDivStyle = options.style,
		tooltipLine = renderer.ttLine,
		padding = parseInt(tooltipDivStyle.padding, 10);
2999
	// Add border styling from options to the style
	tooltipDivStyle = merge(tooltipDivStyle, {
		padding: padding + PX,
		'background-color': options.backgroundColor,
		'border-style': 'solid',
		'border-width': borderWidth + PX,
		'border-radius': options.borderRadius + PX
	});
3008
	// Optionally add shadow
	if (options.shadow) {
		tooltipDivStyle = merge(tooltipDivStyle, {
			'box-shadow': '1px 1px 3px gray', // w3c
			'-webkit-box-shadow': '1px 1px 3px gray' // webkit
		});
	}
	css(tooltipDiv, tooltipDivStyle);
3017
	// Set simple style on the line
	css(tooltipLine, {
		'border-left': '1px solid darkgray'
	});
3022
	// This event is triggered when a new tooltip should be shown
	addEvent(chart, 'tooltipRefresh', function (args) {
		var chartContainer = chart.container,
			offsetLeft = chartContainer.offsetLeft,
			offsetTop = chartContainer.offsetTop,
			position;
3029
		// Set the content of the tooltip
		tooltipDiv.innerHTML = args.text;
3032
		// Compute the best position for the tooltip based on the divs size and container size.
		position = chart.tooltip.getPosition(
			tooltipDiv.offsetWidth, 
			tooltipDiv.offsetHeight, 
			{ plotX: args.x, plotY: args.y }
		);
3039
		css(tooltipDiv, {
			visibility: VISIBLE,
			left: position.x + PX,
			top: position.y + PX,
			'border-color': args.borderColor
		});
3046
		// Position the tooltip line
		css(tooltipLine, {
			visibility: VISIBLE,
			left: offsetLeft + args.x + PX,
			top: offsetTop + chart.plotTop + PX,
			height: chart.plotHeight  + PX
		});
3054
		// This timeout hides the tooltip after 3 seconds
		// First clear any existing timer
		if (renderer.ttTimer !== UNDEFINED) {
			clearTimeout(renderer.ttTimer);
		}
3060
		// Start a new timer that hides tooltip and line
		renderer.ttTimer = setTimeout(function () {
			css(tooltipDiv, { visibility: HIDDEN });
			css(tooltipLine, { visibility: HIDDEN });
		}, 3000);
	});
},
3068
/**
 * Extend SVGRenderer.destroy to also destroy the elements added by CanVGRenderer.
 */
destroy: function () {
	var renderer = this;
3074
	// Remove the canvas
	discardElement(renderer.canvas);
3077
	// Kill the timer
	if (renderer.ttTimer !== UNDEFINED) {
		clearTimeout(renderer.ttTimer);
	}
3082
	// Remove the divs for tooltip and line
	discardElement(renderer.ttLine);
	discardElement(renderer.ttDiv);
	discardElement(renderer.hiddenSvg);
3087
	// Continue with base class
	return SVGRenderer.prototype.destroy.apply(renderer);
},
3091
/**
 * Take a color and return it if it's a string, do not make it a gradient even if it is a
 * gradient. Currently canvg cannot render gradients (turns out black),
 * see: http://code.google.com/p/canvg/issues/detail?id=104
 *
 * @param {Object} color The color or config object
 */
color: function (color, elem, prop) {
	if (color && color.linearGradient) {
		// Pick the end color and forward to base implementation
		color = color.stops[color.stops.length - 1][1];
	}
	return SVGRenderer.prototype.color.call(this, color, elem, prop);
},
3106
/**
 * Draws the SVG on the canvas or adds a draw invokation to the deferred list.
 */
draw: function () {
	var renderer = this;
	win.canvg(renderer.canvas, renderer.hiddenSvg.innerHTML);
}
});
3115}(Highcharts));
1	`/**`
2	`* @license A class to parse color values`
3	`* @author Stoyan Stefanov <sstoo@gmail.com>`
4	`* @link http://www.phpied.com/rgb-color-parser-in-javascript/`
5	`* Use it if you like it`
6	`*`
7	`*/`
8	`function RGBColor(color_string)`
9	`{`
10	`this.ok = false;`
11
12	`// strip any leading #`
13	`if (color_string.charAt(0) == '#') { // remove # if any`
14	`color_string = color_string.substr(1,6);`
15	`}`
16
17	`color_string = color_string.replace(/ /g,'');`
18	`color_string = color_string.toLowerCase();`
19
20	`// before getting into regexps, try simple matches`
21	`// and overwrite the input`
22	`var simple_colors = {`
23	`aliceblue: 'f0f8ff',`
24	`antiquewhite: 'faebd7',`
25	`aqua: '00ffff',`
26	`aquamarine: '7fffd4',`
27	`azure: 'f0ffff',`
28	`beige: 'f5f5dc',`
29	`bisque: 'ffe4c4',`
30	`black: '000000',`
31	`blanchedalmond: 'ffebcd',`
32	`blue: '0000ff',`
33	`blueviolet: '8a2be2',`
34	`brown: 'a52a2a',`
35	`burlywood: 'deb887',`
36	`cadetblue: '5f9ea0',`
37	`chartreuse: '7fff00',`
38	`chocolate: 'd2691e',`
39	`coral: 'ff7f50',`
40	`cornflowerblue: '6495ed',`