We_Relese/App/Relese/Content/Libs/canvg/canvg.js

/* eslint-disable */
/*
 * canvg.js - Javascript SVG parser and renderer on Canvas
 * version 2.0.0
 * MIT Licensed
 * Gabe Lerner (gabelerner@gmail.com)
 * https://github.com/canvg/canvg
 *
 */

(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('rgbcolor'), require('stackblur-canvas')) :
		typeof define === 'function' && define.amd ? define(['rgbcolor', 'stackblur-canvas'], factory) :
			(global.canvgv2 = factory(global.RGBColor, global.StackBlur));
}(this, (function (rgbcolor, stackblurCanvas) {
	'use strict';

	rgbcolor = rgbcolor && rgbcolor.hasOwnProperty('default') ? rgbcolor['default'] : rgbcolor;
	stackblurCanvas = stackblurCanvas && stackblurCanvas.hasOwnProperty('default') ? stackblurCanvas['default'] : stackblurCanvas;

	function createCommonjsModule(fn, module) {
		return module = { exports: {} }, fn(module, module.exports), module.exports;
	}

	var canvg_1 = createCommonjsModule(function (module) {
		/* eslint-env browser, node */
		/* globals $, Sizzle, Windows, ActiveXObject */
		/* eslint-disable no-redeclare */


		var isNode = (module.exports && typeof window === 'undefined'),
			nodeEnv = false;
		var windowEnv;

		{
			windowEnv = window;
			windowEnv.DOMParser = window.DOMParser;
		}

		var doc = windowEnv.document,
			defaultClientWidth = 800,
			defaultClientHeight = 600;

		function createCanvas(width, height) {
			var c;
			{
				c = doc.createElement('canvas');
				c.width = width;
				c.height = height;
			}
			return c;
		}

		// 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
		//       enableRedraw: function => whether enable the redraw interval in node environment
		//       forceRedraw: function => will call the function on every frame, if it returns true, will redraw
		var canvg = function (target, s, opts) {
			// no parameters
			if (target == null && s == null && opts == null) {
				var svgTags = doc.querySelectorAll('svg');
				for (var i = 0; i < svgTags.length; i++) {
					var svgTag = svgTags[i];
					var c = doc.createElement('canvas');
					if (typeof (svgTag.clientWidth) !== 'undefined' && typeof (svgTag.clientHeight) !== 'undefined') {
						c.width = svgTag.clientWidth;
						c.height = svgTag.clientHeight;
					} else {
						var rect = svgTag.getBoundingClientRect();
						c.width = rect.width;
						c.height = rect.height;
					}
					svgTag.parentNode.insertBefore(c, svgTag);
					svgTag.parentNode.removeChild(svgTag);
					var div = doc.createElement('div');
					div.appendChild(svgTag);
					canvg(c, div.innerHTML);
				}
				return;
			}

			var svg = build(opts || {});

			if (typeof target == 'string') {
				target = doc.getElementById(target);
			}

			// store class on canvas
			if (target.svg != null) target.svg.stop();

			// on i.e. 8 for flash canvas, we can't assign the property so check for it
			if (!(target.childNodes && target.childNodes.length == 1 && target.childNodes[0].nodeName == 'OBJECT')) target.svg = svg;

			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);
			}
		};

		var matchesSelector;
		{
			// see https://developer.mozilla.org/en-US/docs/Web/API/Element.matches
			if (typeof Element == 'undefined'); else if (typeof Element.prototype.matches != 'undefined') {
				matchesSelector = function (node, selector) {
					return node.matches(selector);
				};
			} else if (typeof Element.prototype.webkitMatchesSelector != 'undefined') {
				matchesSelector = function (node, selector) {
					return node.webkitMatchesSelector(selector);
				};
			} else if (typeof Element.prototype.mozMatchesSelector != 'undefined') {
				matchesSelector = function (node, selector) {
					return node.mozMatchesSelector(selector);
				};
			} else if (typeof Element.prototype.msMatchesSelector != 'undefined') {
				matchesSelector = function (node, selector) {
					return node.msMatchesSelector(selector);
				};
			} else if (typeof Element.prototype.oMatchesSelector != 'undefined') {
				matchesSelector = function (node, selector) {
					return node.oMatchesSelector(selector);
				};
			} else {
				// requires Sizzle: https://github.com/jquery/sizzle/wiki/Sizzle-Documentation
				// or jQuery: http://jquery.com/download/
				// or Zepto: http://zeptojs.com/#
				// without it, this is a ReferenceError

				if (typeof jQuery === 'function' || typeof Zepto === 'function') {
					matchesSelector = function (node, selector) {
						return $(node).is(selector);
					};
				}

				if (typeof matchesSelector === 'undefined' && typeof Sizzle !== 'undefined') {
					matchesSelector = Sizzle.matchesSelector;
				}
			}
		}

		// slightly modified version of https://github.com/keeganstreet/specificity/blob/master/specificity.js
		var attributeRegex = /(\[[^\]]+\])/g;
		var idRegex = /(#[^\s\+>~\.\[:]+)/g;
		var classRegex = /(\.[^\s\+>~\.\[:]+)/g;
		var pseudoElementRegex = /(::[^\s\+>~\.\[:]+|:first-line|:first-letter|:before|:after)/gi;
		var pseudoClassWithBracketsRegex = /(:[\w-]+\([^\)]*\))/gi;
		var pseudoClassRegex = /(:[^\s\+>~\.\[:]+)/g;
		var elementRegex = /([^\s\+>~\.\[:]+)/g;

		function getSelectorSpecificity(selector) {
			var typeCount = [0, 0, 0];
			var findMatch = function (regex, type) {
				var matches = selector.match(regex);
				if (matches == null) {
					return;
				}
				typeCount[type] += matches.length;
				selector = selector.replace(regex, ' ');
			};

			selector = selector.replace(/:not\(([^\)]*)\)/g, '     $1 ');
			selector = selector.replace(/{[\s\S]*/gm, ' ');
			findMatch(attributeRegex, 1);
			findMatch(idRegex, 0);
			findMatch(classRegex, 1);
			findMatch(pseudoElementRegex, 2);
			findMatch(pseudoClassWithBracketsRegex, 1);
			findMatch(pseudoClassRegex, 1);
			selector = selector.replace(/[\*\s\+>~]/g, ' ');
			selector = selector.replace(/[#\.]/g, ' ');
			findMatch(elementRegex, 2);
			return typeCount.join('');
		}

		function build(opts) {
			var svg = { opts: opts };

			svg.FRAMERATE = 30;
			svg.MAX_VIRTUAL_PIXELS = 30000;

			svg.rootEmSize = 12;
			svg.emSize = 12;

			svg.log = function (/* msg */) { };
			if (svg.opts['log'] == true && typeof console != 'undefined') {
				svg.log = function (msg) { console.log(msg); }; // eslint-disable-line no-console
			}

			// globals
			svg.init = function (ctx) {
				var uniqueId = 0;
				svg.UniqueId = function () { uniqueId++; return 'canvg' + uniqueId; };
				svg.Definitions = {};
				svg.Styles = {};
				svg.StylesSpecificity = {};
				svg.Animations = [];
				svg.Images = [];
				svg.ctx = ctx;
				svg.ViewPort = new (function () {

					this.viewPorts = [];
					this.Clear = function () { this.viewPorts = []; };
					this.SetCurrent = function (width, height) { this.viewPorts.push({ width: width, height: height }); };
					this.RemoveCurrent = function () { this.viewPorts.pop(); };
					this.Current = function () { return this.viewPorts[this.viewPorts.length - 1]; };
					this.width = function () { return this.Current().width; };
					this.height = function () { return this.Current().height; };
					this.ComputeSize = function (d) {
						if (d != null && typeof d == 'number') return d;
						if (d == 'x') return this.width();
						if (d == 'y') return this.height();
						return Math.sqrt(Math.pow(this.width(), 2) + Math.pow(this.height(), 2)) / Math.sqrt(2);
					};
				});
			};
			svg.init();

			// images loaded
			svg.ImagesLoaded = function () {
				for (var i = 0; i < svg.Images.length; i++) {
					if (!svg.Images[i].loaded) return false;
				}
				return true;
			};

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

			// compress non-ideographic spaces
			svg.compressSpaces = function (s) { return s.replace(/(?!\u3000)\s+/gm, ' '); };

			// ajax
			svg.ajax = function (url) {
				var AJAX;
				if (windowEnv.XMLHttpRequest) { AJAX = new windowEnv.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 (typeof Windows != 'undefined' && typeof Windows.Data != 'undefined' && typeof Windows.Data.Xml != 'undefined') {
					var xmlDoc = new Windows.Data.Xml.Dom.XmlDocument();
					var settings = new Windows.Data.Xml.Dom.XmlLoadSettings();
					settings.prohibitDtd = false;
					xmlDoc.loadXml(xml, settings);
					return xmlDoc;
				} else if (windowEnv.DOMParser) {
					try {
						var parser = opts.xmldom ? new windowEnv.DOMParser(opts.xmldom) : new windowEnv.DOMParser();
						return parser.parseFromString(xml, 'image/svg+xml');
					} catch (e) {
						parser = opts.xmldom ? new windowEnv.DOMParser(opts.xmldom) : new windowEnv.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;
			};
			svg.Property.prototype.getValue = function () {
				return this.value;
			};

			svg.Property.prototype.hasValue = function () {
				return (this.value != null && this.value !== '');
			};

			// return the numerical value of the property
			svg.Property.prototype.numValue = function () {
				if (!this.hasValue()) return 0;

				var n = parseFloat(this.value);
				if ((this.value + '').match(/%$/)) {
					n = n / 100.0;
				}
				return n;
			};

			svg.Property.prototype.valueOrDefault = function (def) {
				if (this.hasValue()) return this.value;
				return def;
			};

			svg.Property.prototype.numValueOrDefault = function (def) {
				if (this.hasValue()) return this.numValue();
				return parseFloat(def);
			};

			// color extensions
			// augment the current color value with the opacity
			svg.Property.prototype.addOpacity = function (opacityProp) {
				var newValue = this.value;
				if (opacityProp.value != null && opacityProp.value != '' && typeof this.value == 'string') { // can only add opacity to colors, not patterns
					var color = new rgbcolor(this.value);
					if (color.ok) {
						newValue = 'rgba(' + color.r + ', ' + color.g + ', ' + color.b + ', ' + opacityProp.numValue() + ')';
					}
				}
				return new svg.Property(this.name, newValue);
			};

			// definition extensions
			// get the definition from the definitions table
			svg.Property.prototype.getDefinition = function () {
				var name = this.value.match(/#([^\)'"]+)/);
				if (name) { name = name[1]; }
				if (!name) { name = this.value; }
				return svg.Definitions[name];
			};

			svg.Property.prototype.isUrlDefinition = function () {
				return this.value.indexOf('url(') == 0
			};

			svg.Property.prototype.getFillStyleDefinition = function (e, opacityProp) {
				var def = this.getDefinition();

				// gradient
				if (def != null && def.createGradient) {
					return def.createGradient(svg.ctx, e, opacityProp);
				}

				// pattern
				if (def != null && def.createPattern) {
					if (def.getHrefAttribute().hasValue()) {
						var pt = def.attribute('patternTransform');
						def = def.getHrefAttribute().getDefinition();
						if (pt.hasValue()) { def.attribute('patternTransform', true).value = pt.value; }
					}
					return def.createPattern(svg.ctx, e, opacityProp);
				}

				return null;
			};

			// length extensions
			svg.Property.prototype.getDPI = function (/* viewPort */) {
				return 96.0; // TODO: compute?
			};

			svg.Property.prototype.getREM = function (/* viewPort */) {
				return svg.rootEmSize;
			};

			svg.Property.prototype.getEM = function (/* viewPort */) {
				return svg.emSize;
			};

			svg.Property.prototype.getUnits = function () {
				var s = this.value + '';
				return s.replace(/[0-9\.\-]/g, '');
			};

			svg.Property.prototype.isPixels = function () {
				if (!this.hasValue()) return false;
				var s = this.value + '';
				if (s.match(/px$/)) return true;
				if (s.match(/^[0-9]+$/)) return true;
				return false;
			};

			// get the length as pixels
			svg.Property.prototype.toPixels = function (viewPort, processPercent) {
				if (!this.hasValue()) return 0;
				var s = this.value + '';
				if (s.match(/rem$/)) return this.numValue() * this.getREM(viewPort);
				if (s.match(/em$/)) return this.numValue() * this.getEM(viewPort);
				if (s.match(/ex$/)) return this.numValue() * this.getEM(viewPort) / 2.0;
				if (s.match(/px$/)) return this.numValue();
				if (s.match(/pt$/)) return this.numValue() * this.getDPI(viewPort) * (1.0 / 72.0);
				if (s.match(/pc$/)) return this.numValue() * 15;
				if (s.match(/cm$/)) return this.numValue() * this.getDPI(viewPort) / 2.54;
				if (s.match(/mm$/)) return this.numValue() * this.getDPI(viewPort) / 25.4;
				if (s.match(/in$/)) return this.numValue() * this.getDPI(viewPort);
				if (s.match(/%$/)) return this.numValue() * svg.ViewPort.ComputeSize(viewPort);
				var n = this.numValue();
				if (processPercent && n < 1.0) return n * svg.ViewPort.ComputeSize(viewPort);
				return n;
			};

			// time extensions
			// get the time as milliseconds
			// https://svgwg.org/specs/animations/#ClockValueSyntax
			svg.Property.prototype.toMilliseconds = function () {
				if (!this.hasValue()) return 0;
				var s = this.value + '';
				if (s.match(/ms$/)) return this.numValue();
				return this.numValue() * 1000;
			};

			// angle extensions
			// get the angle as radians
			svg.Property.prototype.toRadians = function () {
				if (!this.hasValue()) return 0;
				var s = this.value + '';
				if (s.match(/deg$/)) return this.numValue() * (Math.PI / 180.0);
				if (s.match(/grad$/)) return this.numValue() * (Math.PI / 200.0);
				if (s.match(/rad$/)) return this.numValue();
				return this.numValue() * (Math.PI / 180.0);
			};

			// text extensions
			// get the text baseline
			var textBaselineMapping = {
				'baseline': 'alphabetic',
				'before-edge': 'top',
				'text-before-edge': 'top',
				'middle': 'middle',
				'central': 'middle',
				'after-edge': 'bottom',
				'text-after-edge': 'bottom',
				'ideographic': 'ideographic',
				'alphabetic': 'alphabetic',
				'hanging': 'hanging',
				'mathematical': 'alphabetic'
			};
			svg.Property.prototype.toTextBaseline = function () {
				if (!this.hasValue()) return null;
				return textBaselineMapping[this.value];
			};

			// 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);
					fontFamily = fontFamily || f.fontFamily;
					return {
						fontFamily: 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 = (s || '').match(/-?(\d+(?:\.\d*(?:[eE][+-]?\d+)?)?|\.\d+)(?=\D|$)/gm) || [];
				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;
			};
			svg.Point.prototype.angleTo = function (p) {
				return Math.atan2(p.y - this.y, p.x - this.x);
			};

			svg.Point.prototype.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 (var 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.unapply = function (ctx) {
						ctx.translate(-1.0 * this.p.x || 0.0, -1.0 * 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.toRadians());
						ctx.translate(-this.cx, -this.cy);
					};
					this.unapply = function (ctx) {
						ctx.translate(this.cx, this.cy);
						ctx.rotate(-1.0 * this.angle.toRadians());
						ctx.translate(-this.cx, -this.cy);
					};
					this.applyToPoint = function (p) {
						var a = this.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.unapply = function (ctx) {
						ctx.scale(1.0 / this.p.x || 1.0, 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.unapply = function (ctx) {
						var a = this.m[0];
						var b = this.m[2];
						var c = this.m[4];
						var d = this.m[1];
						var e = this.m[3];
						var f = this.m[5];
						var g = 0.0;
						var h = 0.0;
						var i = 1.0;
						var det = 1 / (a * (e * i - f * h) - b * (d * i - f * g) + c * (d * h - e * g));
						ctx.transform(
							det * (e * i - f * h),
							det * (f * g - d * i),
							det * (c * h - b * i),
							det * (a * i - c * g),
							det * (b * f - c * e),
							det * (c * d - a * f)
						);
					};
					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.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.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.unapply = function (ctx) {
					for (var i = this.transforms.length - 1; i >= 0; i--) {
						this.transforms[i].unapply(ctx);
					}
				};

				// TODO: applyToPoint unused ... remove?
				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)).replace(/\)([a-zA-Z])/g, ') $1').replace(/\)(\s?,\s?)/g, ') ').split(/\s(?=[a-z])/);
				for (var i = 0; i < data.length; i++) {
					if (data[i] === 'none') {
						continue;
					}

					var type = svg.trim(data[i].split('(')[0]);
					var s = data[i].split('(')[1].replace(')', '');
					var transformType = this.Type[type];
					if (typeof transformType != 'undefined') {
						var transform = new transformType(s);
						transform.type = type;
						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.toPixels('x'), -scaleMin * refY.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.EmptyProperty = new svg.Property('EMPTY', '');

			svg.Element.ElementBase = function (node) {
				this.attributes = {};
				this.styles = {};
				this.stylesSpecificity = {};
				this.children = [];

				// get or create attribute
				this.attribute = function (name, createIfNotExists) {
					var a = this.attributes[name];
					if (a != null) return a;

					if (createIfNotExists == true) {
						a = new svg.Property(name, '');
						this.attributes[name] = a;
					}
					return a || svg.EmptyProperty;
				};

				this.getHrefAttribute = function () {
					for (var a in this.attributes) {
						if (a == 'href' || a.match(/:href$/)) {
							return this.attributes[a];
						}
					}
					return svg.EmptyProperty;
				};

				// get or create style, crawls up node tree
				this.style = function (name, createIfNotExists, skipAncestors) {
					var s = this.styles[name];
					if (s != null) return s;

					var a = this.attribute(name);
					if (a != null && a.hasValue()) {
						this.styles[name] = a; // move up to me to cache
						return a;
					}

					if (skipAncestors != true) {
						var p = this.parent;
						if (p != null) {
							var ps = p.style(name);
							if (ps != null && ps.hasValue()) {
								return ps;
							}
						}
					}

					if (createIfNotExists == true) {
						s = new svg.Property(name, '');
						this.styles[name] = s;
					}
					return s || svg.EmptyProperty;
				};

				// 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.style('visibility').value == 'hidden') return;

					ctx.save();
					if (this.style('mask').hasValue()) { // mask
						var mask = this.style('mask').getDefinition();
						if (mask != null) mask.apply(ctx, this);
					} else if (this.style('filter').hasValue()) { // filter
						var filter = this.style('filter').getDefinition();
						if (filter != null) filter.apply(ctx, this);
					} else {
						this.setContext(ctx);
						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;
					if (child.type != 'title') { this.children.push(child); }
				};

				this.addStylesFromStyleDefinition = function () {
					// add styles
					for (var selector in svg.Styles) {
						if (selector[0] != '@' && matchesSelector(node, selector)) {
							var styles = svg.Styles[selector];
							var specificity = svg.StylesSpecificity[selector];
							if (styles != null) {
								for (var name in styles) {
									var existingSpecificity = this.stylesSpecificity[name];
									if (typeof existingSpecificity == 'undefined') {
										existingSpecificity = '000';
									}
									if (specificity >= existingSpecificity) {
										this.styles[name] = styles[name];
										this.stylesSpecificity[name] = specificity;
									}
								}
							}
						}
					}
				};

				// Microsoft Edge fix
				var allUppercase = new RegExp('^[A-Z\-]+$');
				var normalizeAttributeName = function (name) {
					if (allUppercase.test(name)) {
						return name.toLowerCase();
					}
					return name;
				};

				if (node != null && node.nodeType == 1) { //ELEMENT_NODE
					// add attributes
					for (var i = 0; i < node.attributes.length; i++) {
						var attribute = node.attributes[i];
						var nodeName = normalizeAttributeName(attribute.nodeName);
						this.attributes[nodeName] = new svg.Property(nodeName, attribute.value);
					}

					this.addStylesFromStyleDefinition();

					// 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);
							}
						}
					}

					// add id
					if (this.attribute('id').hasValue()) {
						if (svg.Definitions[this.attribute('id').value] == null) {
							svg.Definitions[this.attribute('id').value] = this;
						}
					}

					// 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
						if (this.captureTextNodes && (childNode.nodeType == 3 || childNode.nodeType == 4)) {
							var text = childNode.value || childNode.text || childNode.textContent || '';
							if (svg.compressSpaces(text) != '') {
								this.addChild(new svg.Element.tspan(childNode), false); // TEXT_NODE
							}
						}
					}
				}
			};

			svg.Element.RenderedElementBase = function (node) {
				this.base = svg.Element.ElementBase;
				this.base(node);

				this.calculateOpacity = function () {
					var opacity = 1.0;

					var el = this;
					while (el != null) {
						var opacityStyle = el.style('opacity', false, true); // no ancestors on style call
						if (opacityStyle.hasValue()) {
							opacity = opacity * opacityStyle.numValue();
						}
						el = el.parent;
					}

					return opacity;
				};

				this.setContext = function (ctx, fromMeasure) {
					if (!fromMeasure) { // causes stack overflow when measuring text with gradients
						// fill
						if (this.style('fill').isUrlDefinition()) {
							var fs = this.style('fill').getFillStyleDefinition(this, this.style('fill-opacity'));
							if (fs != null) ctx.fillStyle = fs;
						} else if (this.style('fill').hasValue()) {
							var fillStyle = this.style('fill');
							if (fillStyle.value == 'currentColor') fillStyle.value = this.style('color').value;
							if (fillStyle.value != 'inherit') ctx.fillStyle = (fillStyle.value == 'none' ? 'rgba(0,0,0,0)' : fillStyle.value);
						}
						if (this.style('fill-opacity').hasValue()) {
							var fillStyle = new svg.Property('fill', ctx.fillStyle);
							fillStyle = fillStyle.addOpacity(this.style('fill-opacity'));
							ctx.fillStyle = fillStyle.value;
						}

						// stroke
						if (this.style('stroke').isUrlDefinition()) {
							var fs = this.style('stroke').getFillStyleDefinition(this, this.style('stroke-opacity'));
							if (fs != null) ctx.strokeStyle = fs;
						} else if (this.style('stroke').hasValue()) {
							var strokeStyle = this.style('stroke');
							if (strokeStyle.value == 'currentColor') strokeStyle.value = this.style('color').value;
							if (strokeStyle.value != 'inherit') ctx.strokeStyle = (strokeStyle.value == 'none' ? 'rgba(0,0,0,0)' : strokeStyle.value);
						}
						if (this.style('stroke-opacity').hasValue()) {
							var strokeStyle = new svg.Property('stroke', ctx.strokeStyle);
							strokeStyle = strokeStyle.addOpacity(this.style('stroke-opacity'));
							ctx.strokeStyle = strokeStyle.value;
						}
						if (this.style('stroke-width').hasValue()) {
							var newLineWidth = this.style('stroke-width').toPixels();
							ctx.lineWidth = newLineWidth == 0 ? 0.001 : newLineWidth; // browsers don't respect 0
						}
						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;
						if (this.style('paint-order').hasValue()) ctx.paintOrder = this.style('paint-order').value;
						if (this.style('stroke-dasharray').hasValue() && this.style('stroke-dasharray').value != 'none') {
							var gaps = svg.ToNumberArray(this.style('stroke-dasharray').value);
							if (typeof ctx.setLineDash != 'undefined') { ctx.setLineDash(gaps); } else if (typeof ctx.webkitLineDash != 'undefined') { ctx.webkitLineDash = gaps; } else if (typeof ctx.mozDash != 'undefined' && !(gaps.length == 1 && gaps[0] == 0)) { ctx.mozDash = gaps; }

							var offset = this.style('stroke-dashoffset').toPixels();
							if (typeof ctx.lineDashOffset != 'undefined') { ctx.lineDashOffset = offset; } else if (typeof ctx.webkitLineDashOffset != 'undefined') { ctx.webkitLineDashOffset = offset; } else if (typeof ctx.mozDashOffset != 'undefined') { ctx.mozDashOffset = offset; }
						}
					}

					// font
					if (typeof ctx.font != 'undefined') {
						if (this.style('font').hasValue()) {
							ctx.font = this.style('font').value;
						} else {
							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').toPixels() + 'px' : '',
								this.style('font-family').value).toString();

							// update em size if needed
							var currentFontSize = this.style('font-size', false, false);
							if (currentFontSize.isPixels()) {
								svg.emSize = currentFontSize.toPixels();
							}
						}
					}

					// transform
					if (this.style('transform', false, true).hasValue()) {
						var transform = new svg.Transform(this.style('transform', false, true).value);
						transform.apply(ctx);
					}

					// clip
					if (this.style('clip-path', false, true).hasValue()) {
						var clip = this.style('clip-path', false, true).getDefinition();
						if (clip != null) clip.apply(ctx);
					}

					// opacity
					ctx.globalAlpha = this.calculateOpacity();
				};
			};
			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 != '') {
						if (this.style('fill-rule').valueOrDefault('inherit') != 'inherit') { ctx.fill(this.style('fill-rule').value); } else { ctx.fill(); }
					}
					if (ctx.strokeStyle != '') ctx.stroke();

					var markers = this.getMarkers();
					if (markers != null) {
						if (this.style('marker-start').isUrlDefinition()) {
							var marker = this.style('marker-start').getDefinition();
							marker.render(ctx, markers[0][0], markers[0][1]);
						}
						if (this.style('marker-mid').isUrlDefinition()) {
							var marker = this.style('marker-mid').getDefinition();
							for (var i = 1; i < markers.length - 1; i++) {
								marker.render(ctx, markers[i][0], markers[i][1]);
							}
						}
						if (this.style('marker-end').isUrlDefinition()) {
							var marker = this.style('marker-end').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.SetDefaults = function (ctx) {
				// initial values and defaults
				ctx.strokeStyle = 'rgba(0,0,0,0)';
				ctx.lineCap = 'butt';
				ctx.lineJoin = 'miter';
				ctx.miterLimit = 4;
			};

			// 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) {
					svg.SetDefaults(ctx);
					if (ctx.canvas.style && typeof ctx.font != 'undefined' && typeof windowEnv.getComputedStyle != 'undefined') {
						ctx.font = windowEnv.getComputedStyle(ctx.canvas).getPropertyValue('font');

						var fontSize = new svg.Property('fontSize', svg.Font.Parse(ctx.font).fontSize);
						if (fontSize.hasValue()) svg.rootEmSize = svg.emSize = fontSize.toPixels('y');
					}

					this.baseSetContext(ctx);

					// create new view port
					if (!this.attribute('x').hasValue()) this.attribute('x', true).value = 0;
					if (!this.attribute('y').hasValue()) this.attribute('y', true).value = 0;
					ctx.translate(this.attribute('x').toPixels('x'), this.attribute('y').toPixels('y'));

					var width = svg.ViewPort.width();
					var height = svg.ViewPort.height();

					if (!this.attribute('width').hasValue()) this.attribute('width', true).value = '100%';
					if (!this.attribute('height').hasValue()) this.attribute('height', true).value = '100%';
					if (typeof this.root == 'undefined') {
						width = this.attribute('width').toPixels('x');
						height = this.attribute('height').toPixels('y');

						var x = 0;
						var y = 0;
						if (this.attribute('refX').hasValue() && this.attribute('refY').hasValue()) {
							x = -this.attribute('refX').toPixels('x');
							y = -this.attribute('refY').toPixels('y');
						}

						if (this.attribute('overflow').valueOrDefault('hidden') != 'visible') {
							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;

			// rect element
			svg.Element.rect = function (node) {
				this.base = svg.Element.PathElementBase;
				this.base(node);

				this.path = function (ctx) {
					var x = this.attribute('x').toPixels('x');
					var y = this.attribute('y').toPixels('y');
					var width = this.attribute('width').toPixels('x');
					var height = this.attribute('height').toPixels('y');
					var rx = this.attribute('rx').toPixels('x');
					var ry = this.attribute('ry').toPixels('y');
					if (this.attribute('rx').hasValue() && !this.attribute('ry').hasValue()) ry = rx;
					if (this.attribute('ry').hasValue() && !this.attribute('rx').hasValue()) rx = ry;
					rx = Math.min(rx, width / 2.0);
					ry = Math.min(ry, height / 2.0);

					if (ctx != null) {
						var KAPPA = 4 * ((Math.sqrt(2) - 1) / 3);
						ctx.beginPath(); // always start the path so we don't fill prior paths
						if (height > 0 && width > 0) {
							ctx.moveTo(x + rx, y);
							ctx.lineTo(x + width - rx, y);
							ctx.bezierCurveTo(x + width - rx + (KAPPA * rx), y, x + width, y + ry - (KAPPA * ry), x + width, y + ry);
							ctx.lineTo(x + width, y + height - ry);
							ctx.bezierCurveTo(x + width, y + height - ry + (KAPPA * ry), x + width - rx + (KAPPA * rx), y + height, x + width - rx, y + height);
							ctx.lineTo(x + rx, y + height);
							ctx.bezierCurveTo(x + rx - (KAPPA * rx), y + height, x, y + height - ry + (KAPPA * ry), x, y + height - ry);
							ctx.lineTo(x, y + ry);
							ctx.bezierCurveTo(x, y + ry - (KAPPA * ry), x + rx - (KAPPA * rx), 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').toPixels('x');
					var cy = this.attribute('cy').toPixels('y');
					var r = this.attribute('r').toPixels();

					if (ctx != null && r > 0) {
						ctx.beginPath();
						ctx.arc(cx, cy, r, 0, Math.PI * 2, false);
						ctx.closePath();
					}

					return new svg.BoundingBox(cx - r, cy - r, cx + r, cy + r);
				};
			};
			svg.Element.circle.prototype = new svg.Element.PathElementBase;

			// 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').toPixels('x');
					var ry = this.attribute('ry').toPixels('y');
					var cx = this.attribute('cx').toPixels('x');
					var cy = this.attribute('cy').toPixels('y');

					if (ctx != null) {
						ctx.beginPath();
						ctx.moveTo(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.bezierCurveTo(cx + (KAPPA * rx), cy - ry, cx + rx, cy - (KAPPA * ry), cx + rx, cy);
						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').toPixels('x'), this.attribute('y1').toPixels('y')),
						new svg.Point(this.attribute('x2').toPixels('x'), this.attribute('y2').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])]);
					}
					if (markers.length > 0) {
						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;

			// 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
				// As the end of a match can also be the start of the next match, we need to run this replace twice.
				for (var i = 0; i < 2; i++)
					d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([^\s])/gm, '$1 $2'); // suffix commands with spaces
				d = d.replace(/([^\s])([MmZzLlHhVvCcSsQqTtAa])/gm, '$1 $2'); // prefix commands with spaces
				d = d.replace(/([0-9])([+\-])/gm, '$1 $2'); // separate digits on +- signs
				// Again, we need to run this twice to find all occurances
				for (var i = 0; i < 2; i++)
					d = d.replace(/(\.[0-9]*)(\.)/gm, '$1 $2'); // separate digits when they start with a 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 () {
						switch (this.command) {
							case 'm':
							case 'l':
							case 'h':
							case 'v':
							case 'c':
							case 's':
							case 'q':
							case 't':
							case 'a':
							case 'z':
								return true;
						}
						return false;
					};

					this.getToken = function () {
						this.i++;
						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' &&
							this.previousCommand.toLowerCase() != 'q' &&
							this.previousCommand.toLowerCase() != 't') {
							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.y += this.current.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);

				this.path = function (ctx) {
					var pp = this.PathParser;
					pp.reset();

					var bb = new svg.BoundingBox();
					if (ctx != null) ctx.beginPath();
					while (!pp.isEnd()) {
						pp.nextCommand();
						switch (pp.command) {
							case 'M':
							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':
							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':
							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':
							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':
							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':
							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':
							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':
							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':
							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();

									// 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;

									// for markers
									var dir = 1 - sweepFlag ? 1.0 : -1.0;
									var ah = a1 + dir * (ad / 2.0);
									var halfWay = new svg.Point(
										centp.x + rx * Math.cos(ah),
										centp.y + ry * Math.sin(ah)
									);
									pp.addMarkerAngle(halfWay, ah - dir * Math.PI / 2);
									pp.addMarkerAngle(cp, ah - dir * Math.PI);

									bb.addPoint(cp.x, cp.y); // TODO: this is too naive, make it better
									if (ctx != null && !isNaN(a1) && !isNaN(ad)) {
										var r = rx > ry ? rx : ry;
										var sx = rx > ry ? 1 : rx / ry;
										var sy = rx > ry ? ry / rx : 1;

										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':
							case 'z':
								if (ctx != null) {
									// only close path if it is not a straight line
									if (bb.x1 !== bb.x2 && bb.y1 !== bb.y2) {
										ctx.closePath();
									}
								}
								pp.current = pp.start;
						}
					}

					return bb;
				};

				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, parentOpacityProp) {
					var width = this.attribute('width').toPixels('x', true);
					var height = this.attribute('height').toPixels('y', true);

					// 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['width'] = new svg.Property('width', width + 'px');
					tempSvg.attributes['height'] = new svg.Property('height', height + 'px');
					tempSvg.attributes['transform'] = new svg.Property('transform', this.attribute('patternTransform').value);
					tempSvg.children = this.children;

					var c = createCanvas(width, height);
					var cctx = c.getContext('2d');
					if (this.attribute('x').hasValue() && this.attribute('y').hasValue()) {
						cctx.translate(this.attribute('x').toPixels('x', true), this.attribute('y').toPixels('y', true));
					}

					if (parentOpacityProp.hasValue()) {
						this.styles['fill-opacity'] = parentOpacityProp;
					} else {
						delete this.styles['fill-opacity'];
					}

					// render 3x3 grid so when we transform there's no white space on edges
					for (var x = -1; x <= 1; x++) {
						for (var y = -1; y <= 1; y++) {
							cctx.save();
							tempSvg.attributes['x'] = new svg.Property('x', x * c.width);
							tempSvg.attributes['y'] = new svg.Property('y', y * c.height);
							tempSvg.render(cctx);
							cctx.restore();
						}
					}
					var pattern = ctx.createPattern(c, 'repeat');
					return pattern;
				};
			};
			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) {
					if (!point) { return; }
					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.stops = [];
				for (var i = 0; i < this.children.length; i++) {
					var child = this.children[i];
					if (child.type == 'stop') this.stops.push(child);
				}

				this.getGradient = function () {
					// OVERRIDE ME!
				};

				this.gradientUnits = function () {
					return this.attribute('gradientUnits').valueOrDefault('objectBoundingBox');
				};

				this.attributesToInherit = ['gradientUnits'];

				this.inheritStopContainer = function (stopsContainer) {
					for (var i = 0; i < this.attributesToInherit.length; i++) {
						var attributeToInherit = this.attributesToInherit[i];
						if (!this.attribute(attributeToInherit).hasValue() && stopsContainer.attribute(attributeToInherit).hasValue()) {
							this.attribute(attributeToInherit, true).value = stopsContainer.attribute(attributeToInherit).value;
						}
					}
				};

				this.createGradient = function (ctx, element, parentOpacityProp) {
					var stopsContainer = this;
					if (this.getHrefAttribute().hasValue()) {
						stopsContainer = this.getHrefAttribute().getDefinition();
						this.inheritStopContainer(stopsContainer);
					}

					var addParentOpacity = function (color) {
						if (parentOpacityProp.hasValue()) {
							var p = new svg.Property('color', color);
							return p.addOpacity(parentOpacityProp).value;
						}
						return color;
					};

					var g = this.getGradient(ctx, element);
					if (g == null) return addParentOpacity(stopsContainer.stops[stopsContainer.stops.length - 1].color);
					for (var i = 0; i < stopsContainer.stops.length; i++) {
						g.addColorStop(stopsContainer.stops[i].offset, addParentOpacity(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 = createCanvas(rootView.width, 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.attributesToInherit.push('x1');
				this.attributesToInherit.push('y1');
				this.attributesToInherit.push('x2');
				this.attributesToInherit.push('y2');

				this.getGradient = function (ctx, element) {
					var bb = this.gradientUnits() == 'objectBoundingBox' ? element.getBoundingBox(ctx) : null;

					if (!this.attribute('x1').hasValue() &&
						!this.attribute('y1').hasValue() &&
						!this.attribute('x2').hasValue() &&
						!this.attribute('y2').hasValue()) {
						this.attribute('x1', true).value = 0;
						this.attribute('y1', true).value = 0;
						this.attribute('x2', true).value = 1;
						this.attribute('y2', true).value = 0;
					}

					var x1 = (this.gradientUnits() == 'objectBoundingBox' ?
						bb.x() + bb.width() * this.attribute('x1').numValue() :
						this.attribute('x1').toPixels('x'));
					var y1 = (this.gradientUnits() == 'objectBoundingBox' ?
						bb.y() + bb.height() * this.attribute('y1').numValue() :
						this.attribute('y1').toPixels('y'));
					var x2 = (this.gradientUnits() == 'objectBoundingBox' ?
						bb.x() + bb.width() * this.attribute('x2').numValue() :
						this.attribute('x2').toPixels('x'));
					var y2 = (this.gradientUnits() == 'objectBoundingBox' ?
						bb.y() + bb.height() * this.attribute('y2').numValue() :
						this.attribute('y2').toPixels('y'));

					if (x1 == x2 && y1 == y2) return null;
					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.attributesToInherit.push('cx');
				this.attributesToInherit.push('cy');
				this.attributesToInherit.push('r');
				this.attributesToInherit.push('fx');
				this.attributesToInherit.push('fy');
				this.attributesToInherit.push('fr');

				this.getGradient = function (ctx, element) {
					var bb = element.getBoundingBox(ctx);

					if (!this.attribute('cx').hasValue()) this.attribute('cx', true).value = '50%';
					if (!this.attribute('cy').hasValue()) this.attribute('cy', true).value = '50%';
					if (!this.attribute('r').hasValue()) this.attribute('r', true).value = '50%';

					var cx = (this.gradientUnits() == 'objectBoundingBox' ?
						bb.x() + bb.width() * this.attribute('cx').numValue() :
						this.attribute('cx').toPixels('x'));
					var cy = (this.gradientUnits() == 'objectBoundingBox' ?
						bb.y() + bb.height() * this.attribute('cy').numValue() :
						this.attribute('cy').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').toPixels('x'));
					}
					if (this.attribute('fy').hasValue()) {
						fy = (this.gradientUnits() == 'objectBoundingBox' ?
							bb.y() + bb.height() * this.attribute('fy').numValue() :
							this.attribute('fy').toPixels('y'));
					}

					var r = (this.gradientUnits() == 'objectBoundingBox' ?
						(bb.width() + bb.height()) / 2.0 * this.attribute('r').numValue() :
						this.attribute('r').toPixels());

					var fr = this.attribute('fr').toPixels();
					return ctx.createRadialGradient(fx, fy, fr, 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();
				if (this.offset < 0) this.offset = 0;
				if (this.offset > 1) this.offset = 1;

				var stopColor = this.style('stop-color', true);
				if (stopColor.value === '') stopColor.value = '#000';
				if (this.style('stop-opacity').hasValue()) stopColor = stopColor.addOpacity(this.style('stop-opacity'));
				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').toMilliseconds();
				this.maxDuration = this.begin + this.attribute('dur').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.initialUnits = '';
				this.removed = false;

				this.calcValue = function () {
					// OVERRIDE ME!
					return '';
				};

				this.update = function (delta) {
					// set initial value
					if (this.initialValue == null) {
						this.initialValue = this.getProperty().value;
						this.initialUnits = this.getProperty().getUnits();
					}

					// if we're past the end time
					if (this.duration > this.maxDuration) {
						// loop for indefinitely repeating animations
						if (this.attribute('repeatCount').value == 'indefinite' ||
							this.attribute('repeatDur').value == 'indefinite') {
							this.duration = 0.0;
						} else if (this.attribute('fill').valueOrDefault('remove') == 'freeze' && !this.frozen) {
							this.frozen = true;
							this.parent.animationFrozen = true;
							this.parent.animationFrozenValue = this.getProperty().value;
						} else if (this.attribute('fill').valueOrDefault('remove') == 'remove' && !this.removed) {
							this.removed = true;
							this.getProperty().value = this.parent.animationFrozen ? this.parent.animationFrozenValue : this.initialValue;
							return true;
						}
						return false;
					}
					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;
				};

				this.from = this.attribute('from');
				this.to = this.attribute('to');
				this.values = this.attribute('values');
				if (this.values.hasValue()) this.values.value = this.values.value.split(';');

				// fraction of duration we've covered
				this.progress = function () {
					var ret = { progress: (this.duration - this.begin) / (this.maxDuration - this.begin) };
					if (this.values.hasValue()) {
						var p = ret.progress * (this.values.value.length - 1);
						var lb = Math.floor(p),
							ub = Math.ceil(p);
						ret.from = new svg.Property('from', parseFloat(this.values.value[lb]));
						ret.to = new svg.Property('to', parseFloat(this.values.value[ub]));
						ret.progress = (p - lb) / (ub - lb);
					} else {
						ret.from = this.from;
						ret.to = this.to;
					}
					return ret;
				};
			};
			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 p = this.progress();

					// tween value linearly
					var newValue = p.from.numValue() + (p.to.numValue() - p.from.numValue()) * p.progress;
					if (this.initialUnits === '%') {
						newValue *= 100.0; // numValue() returns 0-1 whereas properties are 0-100
					}
					return newValue + this.initialUnits;
				};
			};
			svg.Element.animate.prototype = new svg.Element.AnimateBase;

			// animate color element
			svg.Element.animateColor = function (node) {
				this.base = svg.Element.AnimateBase;
				this.base(node);

				this.calcValue = function () {
					var p = this.progress();
					var from = new rgbcolor(p.from.value);
					var to = new rgbcolor(p.to.value);

					if (from.ok && to.ok) {
						// tween color linearly
						var r = from.r + (to.r - from.r) * p.progress;
						var g = from.g + (to.g - from.g) * p.progress;
						var b = from.b + (to.b - from.b) * p.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.AnimateBase;
				this.base(node);

				this.calcValue = function () {
					var p = this.progress();

					// tween value linearly
					var from = svg.ToNumberArray(p.from.value);
					var to = svg.ToNumberArray(p.to.value);
					var newValue = '';
					for (var i = 0; i < from.length; i++) {
						newValue += from[i] + (to[i] - from[i]) * p.progress + ' ';
					}
					return newValue;
				};
			};
			svg.Element.animateTransform.prototype = new svg.Element.animate;

			// font element
			svg.Element.font = function (node) {
				this.base = svg.Element.ElementBase;
				this.base(node);

				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;
						}
					}
				}

				this.render = function (/* ctx */) {
					// NO RENDER
				};
			};
			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.captureTextNodes = true;
				this.base = svg.Element.RenderedElementBase;
				this.base(node);

				this.baseSetContext = this.setContext;
				this.setContext = function (ctx) {
					this.baseSetContext(ctx);

					var textBaseline = this.style('dominant-baseline').toTextBaseline();
					if (textBaseline == null) textBaseline = this.style('alignment-baseline').toTextBaseline();
					if (textBaseline != null) ctx.textBaseline = textBaseline;
				};

				this.initializeCoordinates = function (ctx) {
					this.x = this.attribute('x').toPixels('x');
					this.y = this.attribute('y').toPixels('y');
					if (this.attribute('dx').hasValue()) this.x += this.attribute('dx').toPixels('x');
					if (this.attribute('dy').hasValue()) this.y += this.attribute('dy').toPixels('y');
					this.x += this.getAnchorDelta(ctx, this, 0);
				};

				this.getBoundingBox = function (ctx) {
					this.initializeCoordinates(ctx);
					var bb = null;
					for (var i = 0; i < this.children.length; i++) {
						var childBB = this.getChildBoundingBox(ctx, this, this, i);
						if (bb == null) bb = childBB;
						else bb.addBoundingBox(childBB);
					}
					return bb;
				};

				this.renderChildren = function (ctx) {
					this.initializeCoordinates(ctx);
					for (var i = 0; i < this.children.length; i++) {
						this.renderChild(ctx, this, this, i);
					}
					svg.Mouse.checkBoundingBox(this, this.getBoundingBox(ctx));
				};

				this.getAnchorDelta = function (ctx, parent, startI) {
					var textAnchor = this.style('text-anchor').valueOrDefault('start');
					if (textAnchor != 'start') {
						var width = 0;
						for (var i = startI; i < parent.children.length; i++) {
							var child = parent.children[i];
							if (i > startI && child.attribute('x').hasValue()) break; // new group
							width += child.measureTextRecursive(ctx);
						}
						return -1 * (textAnchor == 'end' ? width : width / 2.0);
					}
					return 0;
				};

				this.adjustChildCoordinates = function (ctx, textParent, parent, i) {
					var child = parent.children[i];
					if (typeof (child.measureText) !== 'function') {
						return child;
					}

					if (child.attribute('x').hasValue()) {
						child.x = child.attribute('x').toPixels('x') + textParent.getAnchorDelta(ctx, parent, i);

						// local text-anchor
						var textAnchor = child.attribute('text-anchor').valueOrDefault('start');
						if (textAnchor !== 'start') {
							var width = child.measureTextRecursive(ctx);
							child.x += -1 * (textAnchor == 'end' ? width : width / 2.0);
						}

						if (child.attribute('dx').hasValue()) child.x += child.attribute('dx').toPixels('x');
					} else {
						if (child.attribute('dx').hasValue()) textParent.x += child.attribute('dx').toPixels('x');
						child.x = textParent.x;
					}
					textParent.x = child.x + child.measureText(ctx);

					if (child.attribute('y').hasValue()) {
						child.y = child.attribute('y').toPixels('y');
						if (child.attribute('dy').hasValue()) child.y += child.attribute('dy').toPixels('y');
					} else {
						if (child.attribute('dy').hasValue()) textParent.y += child.attribute('dy').toPixels('y');
						child.y = textParent.y;
					}
					textParent.y = child.y;

					return child;
				};

				this.getChildBoundingBox = function (ctx, textParent, parent, i) {
					var child = this.adjustChildCoordinates(ctx, textParent, parent, i);
					var bb = child.getBoundingBox(ctx);

					for (var i = 0; i < child.children.length; i++) {
						var childBB = textParent.getChildBoundingBox(ctx, textParent, child, i);
						bb.addBoundingBox(childBB);
					}

					return bb;
				};

				this.renderChild = function (ctx, textParent, parent, i) {
					var child = this.adjustChildCoordinates(ctx, textParent, parent, i);
					child.render(ctx);

					for (var i = 0; i < child.children.length; i++) {
						textParent.renderChild(ctx, textParent, child, i);
					}
				};
			};
			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').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.paintOrder == 'stroke') {
						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);
					} else {
						if (ctx.fillStyle != '') ctx.fillText(svg.compressSpaces(this.getText()), this.x, this.y);
						if (ctx.strokeStyle != '') ctx.strokeText(svg.compressSpaces(this.getText()), this.x, this.y);
					}
				};

				this.getText = function () {
					// OVERRIDE ME
				};

				this.measureTextRecursive = function (ctx) {
					var width = this.measureText(ctx);
					for (var i = 0; i < this.children.length; i++) {
						width += this.children[i].measureTextRecursive(ctx);
					}
					return width;
				};

				this.measureText = function (ctx) {
					var customFont = this.parent.style('font-family').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, true);
					var width = ctx.measureText(textToMeasure).width;
					ctx.restore();
					return width;
				};

				this.getBoundingBox = function (ctx) {
					var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
					return new svg.BoundingBox(this.x, this.y - fontSize, this.x + this.measureText(ctx), this.y);
				};
			};
			svg.Element.TextElementBase.prototype = new svg.Element.RenderedElementBase;

			// tspan
			svg.Element.tspan = function (node) {
				this.captureTextNodes = true;
				this.base = svg.Element.TextElementBase;
				this.base(node);

				this.text = svg.compressSpaces(node.value || node.text || node.textContent || '');
				this.getText = function () {
					// if this node has children, then they own the text
					if (this.children.length > 0) { return ''; }
					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.getHrefAttribute().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 = node.childNodes.length > 0;
				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].value || node.childNodes[0].data : '';
				this.getText = function () {
					return this.text;
				};

				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.toPixels('y'), this.x + this.measureText(ctx), this.y));
					} else if (this.children.length > 0) {
						// render as temporary group
						var g = new svg.Element.g();
						g.children = this.children;
						g.parent = this;
						g.render(ctx);
					}
				};

				this.onclick = function () {
					windowEnv.open(this.getHrefAttribute().value);
				};

				this.onmousemove = function () {
					svg.ctx.canvas.style.cursor = 'pointer';
				};
			};
			svg.Element.a.prototype = new svg.Element.TextElementBase;

			// textPath
			svg.Element.textPath = function (node) {
				this.base = svg.Element.TextElementBase;
				this.base(node);

				var pathElement = this.getHrefAttribute().getDefinition();

				this.text = svg.compressSpaces(node.value || node.text || node.textContent || '');

				this.renderChildren = function (ctx) {
					this.setTextData(ctx);

					ctx.save();
					var textDecoration = this.parent.style('text-decoration').value;
					var fontSize = this.fontSize();
					var glyphInfo = this.glyphInfo;
					var fill = ctx.fillStyle;
					if (textDecoration === 'underline') {
						ctx.beginPath();
					}
					for (var i = 0; i < glyphInfo.length; i++) {
						var p0 = glyphInfo[i].p0;
						var p1 = glyphInfo[i].p1;
						var partialText = glyphInfo[i].text;

						ctx.save();
						ctx.translate(p0.x, p0.y);
						ctx.rotate(glyphInfo[i].rotation);
						if (ctx.fillStyle != '') ctx.fillText(svg.compressSpaces(partialText), 0, 0);
						if (ctx.strokeStyle != '') ctx.strokeText(svg.compressSpaces(partialText), 0, 0);
						ctx.restore();
						if (textDecoration === 'underline') {
							if (i === 0) {
								ctx.moveTo(p0.x, p0.y + fontSize / 8);
							}
							ctx.lineTo(p1.x, p1.y + fontSize / 5);
						}

						//// To assist with debugging visually, uncomment following
						//
						// ctx.beginPath();
						// if (i % 2)
						// 	ctx.strokeStyle = 'red';
						// else
						// 	ctx.strokeStyle = 'green';
						// ctx.moveTo(p0.x, p0.y);
						// ctx.lineTo(p1.x, p1.y);
						// ctx.stroke();
						// ctx.closePath();
					}

					if (textDecoration === 'underline') {
						ctx.lineWidth = fontSize / 20;
						ctx.strokeStyle = fill;
						ctx.stroke();
						ctx.closePath();
					}
					ctx.restore();
				};

				this.path = function (ctx) {
					var ca = this.dataArray;
					if (ctx != null) {
						ctx.beginPath();
					}
					for (var n = 0; n < ca.length; n++) {
						var c = ca[n].command;
						var p = ca[n].points;
						switch (c) {
							case 'L':
								if (ctx != null) ctx.lineTo(p[0], p[1]);
								break;
							case 'M':
								if (ctx != null) ctx.moveTo(p[0], p[1]);
								break;
							case 'C':
								if (ctx != null) ctx.bezierCurveTo(p[0], p[1], p[2], p[3], p[4], p[5]);
								break;
							case 'Q':
								if (ctx != null) ctx.quadraticCurveTo(p[0], p[1], p[2], p[3]);
								break;
							case 'A':
								var cx = p[0], cy = p[1], rx = p[2], ry = p[3],
									theta = p[4], dTheta = p[5], psi = p[6], fs = p[7];

								var r = (rx > ry) ? rx : ry;
								var scaleX = (rx > ry) ? 1 : rx / ry;
								var scaleY = (rx > ry) ? ry / rx : 1;

								if (ctx != null) {
									ctx.translate(cx, cy);
									ctx.rotate(psi);
									ctx.scale(scaleX, scaleY);
									ctx.arc(0, 0, r, theta, theta + dTheta, 1 - fs);
									ctx.scale(1 / scaleX, 1 / scaleY);
									ctx.rotate(-psi);
									ctx.translate(-cx, -cy);
								}
								break;
							case 'z':
								if (ctx != null) ctx.closePath();
								break;
						}
					}
				};

				this.getText = function () {
					return this.text;
				};

				this.fontSize = function () {
					return this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
				};

				this.measureText = function (ctx, text) {
					var customFont = this.parent.style('font-family').getDefinition();
					text = text || this.getText();
					if (customFont != null) {
						var fontSize = this.fontSize();
						var measure = 0;
						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(text);
					if (!ctx.measureText) return textToMeasure.length * 10;

					ctx.save();
					this.setContext(ctx);
					var width = ctx.measureText(textToMeasure).width;
					ctx.restore();
					return width;
				};

				// This method supposes what all custom fonts already loaded.
				// If some font will be loaded after this method call, <textPath> will not be rendered correctly.
				// You need to call this method manually to update glyphs cache.
				this.setTextData = function (ctx) {
					if (this.hasOwnProperty('glyphInfo')) return;

					var that = this;
					var charArr = this.getText().split('');
					var spacesNumber = this.getText().split(' ').length - 1;
					var dx = svg.ToNumberArray(this.parent.attribute('dx').valueOrDefault('0'));
					var letterSpacing = 0;
					var anchor = this.parent.style('text-anchor').valueOrDefault('start');

					var thisSpacing = this.style('letter-spacing');
					var parentSpacing = this.parent.style('letter-spacing');
					if (!thisSpacing.hasValue() || thisSpacing.getValue() === 'inherit') {
						letterSpacing = parentSpacing.toPixels();
					} else if (thisSpacing.hasValue()) {
						if (thisSpacing.getValue() !== 'initial' && thisSpacing.getValue() !== 'unset') {
							letterSpacing = thisSpacing.toPixels();
						}
					}

					// fill letter-spacing cache
					this.letterSpacingCache = [];
					for (var i = 0; i < this.getText().length; i++) {
						this.letterSpacingCache.push(dx[i] !== undefined ? dx[i] : letterSpacing);
					}

					var dxSum = this.letterSpacingCache.reduce(function (acc, cur) { return acc + cur || 0 }, 0);

					this.textWidth = this.measureText(ctx);
					this.textHeight = this.fontSize();

					var textFullWidth = Math.max(this.textWidth + dxSum, 0);

					this.glyphInfo = [];

					var fullPathWidth = this.getPathLength();

					var startOffset = this.style('startOffset').numValueOrDefault(0) * fullPathWidth;
					var offset = 0;
					if (anchor === 'middle' || anchor === 'center') {
						offset = -textFullWidth / 2;
					}
					if (anchor === 'end' || anchor === 'right') {
						offset = -textFullWidth;
					}
					offset += startOffset;

					var getGetterSpacingAt = function (idx) {
						idx = idx || 0;
						return that.letterSpacingCache[idx] || 0;
					};

					var findSegmentToFitChar = function (c, charI) {
						var glyphWidth = that.measureText(ctx, c);

						if (c === ' ' && anchor === 'justify' && textFullWidth < fullPathWidth) {
							glyphWidth += (fullPathWidth - textFullWidth) / spacesNumber;
						}

						if (charI > -1) {
							offset += getGetterSpacingAt(charI);
						}

						var splineStep = that.textHeight / 20;
						var segment = {
							p0: that.getEquidistantPointOnPath(offset, splineStep),
							p1: that.getEquidistantPointOnPath(offset + glyphWidth, splineStep)
						};

						offset += glyphWidth;

						return segment;
					};

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

						// Find such segment what distance between p0 and p1 is approx. width of glyph
						var segment = findSegmentToFitChar(charArr[i], i);

						if (segment.p0 === undefined || segment.p1 === undefined) {
							continue;
						}

						var width = that.getLineLength(segment.p0.x, segment.p0.y, segment.p1.x, segment.p1.y);

						// Note: Since glyphs are rendered one at a time, any kerning pair data built into the font will not be used.
						// Can foresee having a rough pair table built in that the developer can override as needed.
						// Or use "dx" attribute of the <text> node as a naive replacement

						var kern = 0;
						// placeholder for future implementation

						var midpoint = that.getPointOnLine(kern + width / 2.0, segment.p0.x, segment.p0.y, segment.p1.x, segment.p1.y);

						var rotation = Math.atan2((segment.p1.y - segment.p0.y), (segment.p1.x - segment.p0.x));
						this.glyphInfo.push({
							transposeX: midpoint.x,
							transposeY: midpoint.y,
							text: charArr[i],
							rotation: rotation,
							p0: segment.p0,
							p1: segment.p1
						});
					}
				};

				this.parsePathData = function (path) {
					this.pathLength = undefined; // reset path length

					if (!path) {
						return [];
					}

					var ca = [];
					var pp = path.PathParser;
					pp.reset();

					// convert l, H, h, V, and v to L
					while (!pp.isEnd()) {
						var points = [];
						var cmd = null;
						var startX = pp.current ? pp.current.x : 0;
						var startY = pp.current ? pp.current.y : 0;

						pp.nextCommand();
						var C = pp.command.toUpperCase();
						switch (pp.command) {
							case 'M':
							case 'm':
								var p = pp.getAsCurrentPoint();
								// pp.addMarker(p);
								points.push(p.x, p.y);

								pp.start = pp.current;
								while (!pp.isCommandOrEnd()) {
									var p = pp.getAsCurrentPoint();
									points.push(p.x, p.y);
									cmd = 'L';
								}
								break;
							case 'L':
							case 'l':
								while (!pp.isCommandOrEnd()) {
									var p = pp.getAsCurrentPoint();
									points.push(p.x, p.y);
								}
								cmd = 'L';
								break;
							case 'H':
							case 'h':
								while (!pp.isCommandOrEnd()) {
									var newP = new svg.Point((pp.isRelativeCommand() ? pp.current.x : 0) + pp.getScalar(),
										pp.current.y);
									points.push(newP.x, newP.y);
									pp.current = newP;
								}
								cmd = 'L';
								break;
							case 'V':
							case 'v':
								while (!pp.isCommandOrEnd()) {
									var newP = new svg.Point(pp.current.x,
										(pp.isRelativeCommand() ? pp.current.y : 0) + pp.getScalar());
									points.push(newP.x, newP.y);
									pp.current = newP;
								}
								cmd = 'L';
								break;
							case 'C':
							case 'c':
								while (!pp.isCommandOrEnd()) {
									var p1 = pp.getPoint();
									var cntrl = pp.getAsControlPoint();
									var cp = pp.getAsCurrentPoint();
									points.push(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
								}
								break;
							case 'S':
							case 's':
								while (!pp.isCommandOrEnd()) {
									var p1 = pp.getReflectedControlPoint();
									var cntrl = pp.getAsControlPoint();
									var cp = pp.getAsCurrentPoint();
									points.push(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
								}
								cmd = 'C';
								break;
							case 'Q':
							case 'q':
								while (!pp.isCommandOrEnd()) {
									var cntrl = pp.getAsControlPoint();
									var cp = pp.getAsCurrentPoint();
									points.push(cntrl.x, cntrl.y, cp.x, cp.y);
								}
								break;
							case 'T':
							case 't':
								while (!pp.isCommandOrEnd()) {
									var cntrl = pp.getReflectedControlPoint();
									pp.control = cntrl;
									var cp = pp.getAsCurrentPoint();
									points.push(cntrl.x, cntrl.y, cp.x, cp.y);
								}
								cmd = 'Q';
								break;
							case 'A':
							case 'a':
								while (!pp.isCommandOrEnd()) {
									var curr = pp.current; // x1, y1
									var rx = pp.getScalar();
									var ry = pp.getScalar();
									var xAxisRotation = pp.getScalar() * (Math.PI / 180.0); // ¦Õ
									var largeArcFlag = pp.getScalar(); //  fA
									var sweepFlag = pp.getScalar(); //  fS
									var cp = pp.getAsCurrentPoint(); // x2, y2

									// 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]); // ¦È1
									// 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); // ¦¤¦È
									if (r(u, v) <= -1) ad = Math.PI;
									if (r(u, v) >= 1) ad = 0;
									if (sweepFlag === 0 && ad > 0) ad = ad - 2 * Math.PI;
									if (sweepFlag === 1 && ad < 0) ad = ad + 2 * Math.PI;

									points = [centp.x, centp.y, rx, ry, a1, ad, xAxisRotation, sweepFlag];
								}
								break;
							case 'Z':
							case 'z':
								pp.current = pp.start;
						}

						if (C !== 'Z') {
							ca.push({
								command: cmd || C,
								points: points,
								start: {
									x: startX,
									y: startY
								},
								pathLength: this.calcLength(startX, startY, cmd || C, points)
							});
						} else {
							ca.push({
								command: 'z',
								points: [],
								start: undefined,
								pathLength: 0
							});
						}
					}
					return ca;
				};

				this.getPathLength = function () {
					if (this.pathLength === undefined || this.pathLength === null || isNaN(this.pathLength)) {
						this.pathLength = 0;
						for (var l = 0; l < this.dataArray.length; l++) {
							if (this.dataArray[l].pathLength > 0) {
								this.pathLength += this.dataArray[l].pathLength;
							}
						}
					}
					return this.pathLength;
				};

				this.getPointOnPath = function (distance) {
					var cumulativePathLength = 0;
					var fullLen = this.getPathLength();
					var p = undefined;

					if (distance < -0.00005 || distance - 0.00005 > fullLen) return undefined;

					for (var i = 0; i < this.dataArray.length; i++) {
						var pathCmd = this.dataArray[i];

						if (pathCmd
							&& (
								pathCmd.pathLength < 0.00005
								|| cumulativePathLength + pathCmd.pathLength + 0.00005 < distance
							)
						) {
							cumulativePathLength += pathCmd.pathLength;
							continue;
						}

						var delta = distance - cumulativePathLength;
						var currentT = undefined;
						switch (pathCmd.command) {
							case 'L':
								p = this.getPointOnLine(delta, pathCmd.start.x, pathCmd.start.y, pathCmd.points[0], pathCmd.points[1], pathCmd.start.x, pathCmd.start.y);
								break;
							case 'A':
								var start = pathCmd.points[4];
								// 4 = theta
								var dTheta = pathCmd.points[5];
								// 5 = dTheta
								var end = pathCmd.points[4] + dTheta;

								currentT = start + delta / pathCmd.pathLength * dTheta;
								if (dTheta < 0 && currentT < end || dTheta >= 0 && currentT > end) {
									break;
								}
								p = this.getPointOnEllipticalArc(pathCmd.points[0], pathCmd.points[1], pathCmd.points[2], pathCmd.points[3], currentT, pathCmd.points[6]);
								break;
							case 'C':
								currentT = delta / pathCmd.pathLength;
								if (currentT > 1) {
									currentT = 1;
								}
								p = this.getPointOnCubicBezier(currentT, pathCmd.start.x, pathCmd.start.y, pathCmd.points[0], pathCmd.points[1], pathCmd.points[2], pathCmd.points[3], pathCmd.points[4], pathCmd.points[5]);
								break;
							case 'Q':
								currentT = delta / pathCmd.pathLength;
								if (currentT > 1) {
									currentT = 1;
								}
								p = this.getPointOnQuadraticBezier(currentT, pathCmd.start.x, pathCmd.start.y, pathCmd.points[0], pathCmd.points[1], pathCmd.points[2], pathCmd.points[3]);
								break;
						}

						if (p !== undefined && p !== {}) {
							return p;
						}

						break;
					}
				};

				// TODO need some optimisations. possibly build cache only for curved segments?
				this.buildEquidistantCache = function (step, precision) {
					var fullLen = this.getPathLength();
					precision = precision || 0.25; // accuracy vs performance
					step = step || fullLen / 100;
					this.equidistantCache = this.equidistantCache || {};
					if (
						!this.equidistantCache.hasOwnProperty('points')
						|| this.equidistantCache.step != step
						|| this.equidistantCache.precision != precision
					) {
						// Prepare cache
						this.equidistantCache = {
							step: step,
							precision: precision,
							points: []
						};
						// Calculate points
						var s = 0;
						for (var l = 0; l <= fullLen; l += precision) {
							var p0 = this.getPointOnPath(l),
								p1 = this.getPointOnPath(l + precision);

							if (p0 === undefined || p1 === undefined) continue;

							s += this.getLineLength(p0.x, p0.y, p1.x, p1.y);
							if (s >= step) {
								this.equidistantCache.points.push({
									x: p0.x,
									y: p0.y,
									distance: l
								});
								s -= step;
							}
						}
					}
				};

				this.getEquidistantPointOnPath = function (targetDistance, step, precision) {
					this.buildEquidistantCache(step, precision);

					if (targetDistance < 0 || targetDistance - this.getPathLength() > 0.00005) return undefined;

					var idx = Math.round(targetDistance / this.getPathLength() * (this.equidistantCache.points.length - 1));
					return this.equidistantCache.points[idx] || undefined;
				};

				this.getLineLength = function (x1, y1, x2, y2) {
					return Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));
				};

				this.getPointOnLine = function (dist, P1x, P1y, P2x, P2y, fromX, fromY) {
					if (fromX === undefined) {
						fromX = P1x;
					}
					if (fromY === undefined) {
						fromY = P1y;
					}

					var m = (P2y - P1y) / ((P2x - P1x) + 0.00000001);
					var run = Math.sqrt(dist * dist / (1 + m * m));
					if (P2x < P1x) {
						run *= -1;
					}
					var rise = m * run;
					var pt;

					if (P2x === P1x) { // vertical line
						pt = {
							x: fromX,
							y: fromY + rise
						};
					} else if ((fromY - P1y) / ((fromX - P1x) + 0.00000001) === m) {
						pt = {
							x: fromX + run,
							y: fromY + rise
						};
					}
					else {
						var ix, iy;

						var len = this.getLineLength(P1x, P1y, P2x, P2y);
						if (len < 0.00000001) {
							return undefined;
						}
						var u = (((fromX - P1x) * (P2x - P1x)) + ((fromY - P1y) * (P2y - P1y)));
						u = u / (len * len);
						ix = P1x + u * (P2x - P1x);
						iy = P1y + u * (P2y - P1y);

						var pRise = this.getLineLength(fromX, fromY, ix, iy);
						var pRun = Math.sqrt(dist * dist - pRise * pRise);
						run = Math.sqrt(pRun * pRun / (1 + m * m));
						if (P2x < P1x) {
							run *= -1;
						}
						rise = m * run;
						pt = {
							x: ix + run,
							y: iy + rise
						};
					}

					return pt;
				};

				this.getPointOnCubicBezier = function (pct, P1x, P1y, P2x, P2y, P3x, P3y, P4x, P4y) {
					function CB1(t) {
						return t * t * t;
					}

					function CB2(t) {
						return 3 * t * t * (1 - t);
					}

					function CB3(t) {
						return 3 * t * (1 - t) * (1 - t);
					}

					function CB4(t) {
						return (1 - t) * (1 - t) * (1 - t);
					}

					var x = P4x * CB1(pct) + P3x * CB2(pct) + P2x * CB3(pct) + P1x * CB4(pct);
					var y = P4y * CB1(pct) + P3y * CB2(pct) + P2y * CB3(pct) + P1y * CB4(pct);

					return {
						x: x,
						y: y
					};
				};

				this.getPointOnQuadraticBezier = function (pct, P1x, P1y, P2x, P2y, P3x, P3y) {
					function QB1(t) {
						return t * t;
					}

					function QB2(t) {
						return 2 * t * (1 - t);
					}

					function QB3(t) {
						return (1 - t) * (1 - t);
					}

					var x = P3x * QB1(pct) + P2x * QB2(pct) + P1x * QB3(pct);
					var y = P3y * QB1(pct) + P2y * QB2(pct) + P1y * QB3(pct);

					return {
						x: x,
						y: y
					};
				};

				this.getPointOnEllipticalArc = function (cx, cy, rx, ry, theta, psi) {
					var cosPsi = Math.cos(psi), sinPsi = Math.sin(psi);
					var pt = {
						x: rx * Math.cos(theta),
						y: ry * Math.sin(theta)
					};
					return {
						x: cx + (pt.x * cosPsi - pt.y * sinPsi),
						y: cy + (pt.x * sinPsi + pt.y * cosPsi)
					};
				};

				this.calcLength = function (x, y, cmd, points) {
					var len, p1, p2, t;

					switch (cmd) {
						case 'L':
							return this.getLineLength(x, y, points[0], points[1]);
						case 'C':
							// Approximates by breaking curve into 100 line segments
							len = 0.0;
							p1 = this.getPointOnCubicBezier(0, x, y, points[0], points[1], points[2], points[3], points[4], points[5]);
							for (t = 0.01; t <= 1; t += 0.01) {
								p2 = this.getPointOnCubicBezier(t, x, y, points[0], points[1], points[2], points[3], points[4], points[5]);
								len += this.getLineLength(p1.x, p1.y, p2.x, p2.y);
								p1 = p2;
							}
							return len;
						case 'Q':
							// Approximates by breaking curve into 100 line segments
							len = 0.0;
							p1 = this.getPointOnQuadraticBezier(0, x, y, points[0], points[1], points[2], points[3]);
							for (t = 0.01; t <= 1; t += 0.01) {
								p2 = this.getPointOnQuadraticBezier(t, x, y, points[0], points[1], points[2], points[3]);
								len += this.getLineLength(p1.x, p1.y, p2.x, p2.y);
								p1 = p2;
							}
							return len;
						case 'A':
							// Approximates by breaking curve into line segments
							len = 0.0;
							var start = points[4];
							// 4 = theta
							var dTheta = points[5];
							// 5 = dTheta
							var end = points[4] + dTheta;
							var inc = Math.PI / 180.0;
							// 1 degree resolution
							if (Math.abs(start - end) < inc) {
								inc = Math.abs(start - end);
							}
							// Note: for purpose of calculating arc length, not going to worry about rotating X-axis by angle psi
							p1 = this.getPointOnEllipticalArc(points[0], points[1], points[2], points[3], start, 0);
							if (dTheta < 0) {// clockwise
								for (t = start - inc; t > end; t -= inc) {
									p2 = this.getPointOnEllipticalArc(points[0], points[1], points[2], points[3], t, 0);
									len += this.getLineLength(p1.x, p1.y, p2.x, p2.y);
									p1 = p2;
								}
							}
							else {// counter-clockwise
								for (t = start + inc; t < end; t += inc) {
									p2 = this.getPointOnEllipticalArc(points[0], points[1], points[2], points[3], t, 0);
									len += this.getLineLength(p1.x, p1.y, p2.x, p2.y);
									p1 = p2;
								}
							}
							p2 = this.getPointOnEllipticalArc(points[0], points[1], points[2], points[3], end, 0);
							len += this.getLineLength(p1.x, p1.y, p2.x, p2.y);

							return len;
					}

					return 0;
				};

				this.dataArray = this.parsePathData(pathElement);
			};
			svg.Element.textPath.prototype = new svg.Element.TextElementBase;

			// image element
			svg.Element.image = function (node) {
				this.base = svg.Element.RenderedElementBase;
				this.base(node);

				var href = this.getHrefAttribute().value;
				if (href == '') { return; }
				var isSvg = href.match(/\.svg$/);

				svg.Images.push(this);
				this.loaded = false;
				if (!isSvg) {
					this.img = doc.createElement('img');
					if (svg.opts['useCORS'] == true) { this.img.crossOrigin = 'Anonymous'; }
					var self = this;
					this.img.onload = function () { self.loaded = true; };
					this.img.onerror = function () {
						svg.log('ERROR: image "' + href + '" not found');
						self.loaded = true;
					};
					this.img.src = href;
				} else {
					this.img = svg.ajax(href);
					this.loaded = true;
				}

				this.renderChildren = function (ctx) {
					var x = this.attribute('x').toPixels('x');
					var y = this.attribute('y').toPixels('y');

					var width = this.attribute('width').toPixels('x');
					var height = this.attribute('height').toPixels('y');
					if (width == 0 || height == 0) return;

					ctx.save();
					if (isSvg) {
						ctx.drawSvg(this.img, x, y, width, height);
					} else {
						ctx.translate(x, y);
						svg.AspectRatio(ctx,
							this.attribute('preserveAspectRatio').value,
							width,
							this.img.width,
							height,
							this.img.height,
							0,
							0);
						if (self.loaded) {
							if (this.img.complete === undefined || this.img.complete) {
								ctx.drawImage(this.img, 0, 0);
							}
						}
					}
					ctx.restore();
				};

				this.getBoundingBox = function () {
					var x = this.attribute('x').toPixels('x');
					var y = this.attribute('y').toPixels('y');
					var width = this.attribute('width').toPixels('x');
					var height = this.attribute('height').toPixels('y');
					return new svg.BoundingBox(x, y, x + width, y + height);
				};
			};
			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 (ctx) {
					var bb = new svg.BoundingBox();
					for (var i = 0; i < this.children.length; i++) {
						bb.addBoundingBox(this.children[i].getBoundingBox(ctx));
					}
					return bb;
				};
			};
			svg.Element.g.prototype = new svg.Element.RenderedElementBase;

			// symbol element
			svg.Element.symbol = function (node) {
				this.base = svg.Element.RenderedElementBase;
				this.base(node);

				this.render = function (/* ctx */) {
					// NO RENDER
				};
			};
			svg.Element.symbol.prototype = new svg.Element.RenderedElementBase;

			svg.ParseExternalUrl = function (url) {
				//                                 single quotes [2]
				//                                 v           double quotes [3]
				//                                 v           v        no quotes [4]
				//                                 v           v        v
				var urlMatch = url.match(/url\(('([^']+)'|"([^"]+)"|([^'"\)]+))\)/) || [];
				return urlMatch[2] || urlMatch[3] || urlMatch[4];
			};

			// style element
			svg.Element.style = function (node) {
				this.base = svg.Element.ElementBase;
				this.base(node);

				// text, or spaces then CDATA
				var css = '';
				for (var i = 0; i < node.childNodes.length; i++) {
					css += node.childNodes[i].data;
				}
				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 = svg.Styles[cssClass] || {};
								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;
								svg.StylesSpecificity[cssClass] = getSelectorSpecificity(cssClass);
								if (cssClass == '@font-face' && !nodeEnv) {
									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 url = svg.ParseExternalUrl(srcs[s]);
											if (url) {
												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').toPixels('x'), 0);
					if (this.attribute('y').hasValue()) ctx.translate(0, this.attribute('y').toPixels('y'));
				};

				var element = this.getHrefAttribute().getDefinition();

				this.path = function (ctx) {
					if (element != null) element.path(ctx);
				};

				this.elementTransform = function () {
					if (element != null && element.style('transform', false, true).hasValue()) {
						return new svg.Transform(element.style('transform', false, true).value);
					}
				};

				this.getBoundingBox = function (ctx) {
					if (element != null) return element.getBoundingBox(ctx);
				};

				this.renderChildren = function (ctx) {
					if (element != null) {
						var tempSvg = element;
						if (element.type == 'symbol') {
							// render me using a temporary svg element in symbol cases (http://www.w3.org/TR/SVG/struct.html#UseElement)
							tempSvg = new svg.Element.svg();
							tempSvg.type = 'svg';
							tempSvg.attributes['viewBox'] = new svg.Property('viewBox', element.attribute('viewBox').value);
							tempSvg.attributes['preserveAspectRatio'] = new svg.Property('preserveAspectRatio', element.attribute('preserveAspectRatio').value);
							tempSvg.attributes['overflow'] = new svg.Property('overflow', element.attribute('overflow').value);
							tempSvg.children = element.children;
						}
						if (tempSvg.type == 'svg') {
							// if symbol or svg, inherit width/height from me
							if (this.attribute('width').hasValue()) tempSvg.attributes['width'] = new svg.Property('width', this.attribute('width').value);
							if (this.attribute('height').hasValue()) tempSvg.attributes['height'] = new svg.Property('height', this.attribute('height').value);
						}
						var oldParent = tempSvg.parent;
						tempSvg.parent = null;
						tempSvg.render(ctx);
						tempSvg.parent = oldParent;
					}
				};
			};
			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').toPixels('x');
					var y = this.attribute('y').toPixels('y');
					var width = this.attribute('width').toPixels('x');
					var height = this.attribute('height').toPixels('y');

					if (width == 0 && height == 0) {
						var bb = new svg.BoundingBox();
						for (var i = 0; i < this.children.length; i++) {
							bb.addBoundingBox(this.children[i].getBoundingBox(ctx));
						}
						var x = Math.floor(bb.x1);
						var y = Math.floor(bb.y1);
						var width = Math.floor(bb.width());
						var height = Math.floor(bb.height());
					}

					// temporarily remove mask to avoid recursion
					var mask = element.style('mask').value;
					element.style('mask').value = '';

					var cMask = createCanvas(x + width, y + height);
					var maskCtx = cMask.getContext('2d');
					svg.SetDefaults(maskCtx);
					this.renderChildren(maskCtx);

					// convert mask to alpha with a fake node
					// TODO: refactor out apply from feColorMatrix
					var cm = new svg.Element.feColorMatrix({
						nodeType: 1,
						childNodes: [],
						attributes: [
							{ nodeName: 'type', value: 'luminanceToAlpha' },
							{ nodeName: 'includeOpacity', value: 'true' },
						]
					});
					cm.apply(maskCtx, 0, 0, x + width, y + height);

					var c = createCanvas(x + width, y + height);
					var tempCtx = c.getContext('2d');
					svg.SetDefaults(tempCtx);
					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.style('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) {
					var hasContext2D = (typeof CanvasRenderingContext2D !== 'undefined');
					var oldBeginPath = ctx.beginPath;
					var oldClosePath = ctx.closePath;
					if (hasContext2D) {
						CanvasRenderingContext2D.prototype.beginPath = function () { };
						CanvasRenderingContext2D.prototype.closePath = function () { };
					}

					oldBeginPath.call(ctx);
					for (var i = 0; i < this.children.length; i++) {
						var child = this.children[i];
						if (typeof child.path != 'undefined') {
							var transform = typeof child.elementTransform != 'undefined' && child.elementTransform(); // handle <use />
							if (!transform && child.style('transform', false, true).hasValue()) {
								transform = new svg.Transform(child.style('transform', false, true).value);
							}
							if (transform) {
								transform.apply(ctx);
							}
							child.path(ctx);
							if (hasContext2D) {
								CanvasRenderingContext2D.prototype.closePath = oldClosePath;
							}
							if (transform) { transform.unapply(ctx); }
						}
					}
					oldClosePath.call(ctx);
					ctx.clip();
					if (hasContext2D) {
						CanvasRenderingContext2D.prototype.beginPath = oldBeginPath;
						CanvasRenderingContext2D.prototype.closePath = oldClosePath;
					}
				};

				this.render = function (/* ctx */) {
					// NO RENDER
				};
			};
			svg.Element.clipPath.prototype = new svg.Element.ElementBase;

			// 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(ctx);
					var x = Math.floor(bb.x1);
					var y = Math.floor(bb.y1);
					var width = Math.floor(bb.width());
					var height = Math.floor(bb.height());

					// temporarily remove filter to avoid recursion
					var filter = element.style('filter').value;
					element.style('filter').value = '';

					var px = 0,
						py = 0;
					for (var i = 0; i < this.children.length; i++) {
						var efd = this.children[i].extraFilterDistance || 0;
						px = Math.max(px, efd);
						py = Math.max(py, efd);
					}

					var c = createCanvas(width + 2 * px, height + 2 * py);
					var tempCtx = c.getContext('2d');
					svg.SetDefaults(tempCtx);
					tempCtx.translate(-x + px, -y + py);
					element.render(tempCtx);

					// apply filters
					for (var i = 0; i < this.children.length; i++) {
						if (typeof this.children[i].apply == 'function') {
							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.feDropShadow = function (node) {
				this.base = svg.Element.ElementBase;
				this.base(node);
				this.addStylesFromStyleDefinition();

				this.apply = function (/* ctx, x, y, width, height */) {
					// TODO: implement
				};
			};
			svg.Element.feDropShadow.prototype = new svg.Element.ElementBase;

			svg.Element.feMorphology = function (node) {
				this.base = svg.Element.ElementBase;
				this.base(node);

				this.apply = function (/* ctx, x, y, width, height */) {
					// TODO: implement
				};
			};
			svg.Element.feMorphology.prototype = new svg.Element.ElementBase;

			svg.Element.feComposite = function (node) {
				this.base = svg.Element.ElementBase;
				this.base(node);

				this.apply = function (/* ctx, x, y, width, height */) {
					// TODO: implement
				};
			};
			svg.Element.feComposite.prototype = new svg.Element.ElementBase;

			svg.Element.feColorMatrix = function (node) {
				this.base = svg.Element.ElementBase;
				this.base(node);

				var matrix = svg.ToNumberArray(this.attribute('values').value);
				switch (this.attribute('type').valueOrDefault('matrix')) { // http://www.w3.org/TR/SVG/filters.html#feColorMatrixElement
					case 'saturate':
						var s = matrix[0];
						matrix = [0.213 + 0.787 * s, 0.715 - 0.715 * s, 0.072 - 0.072 * s, 0, 0,
						0.213 - 0.213 * s, 0.715 + 0.285 * s, 0.072 - 0.072 * s, 0, 0,
						0.213 - 0.213 * s, 0.715 - 0.715 * s, 0.072 + 0.928 * s, 0, 0,
							0, 0, 0, 1, 0,
							0, 0, 0, 0, 1
						];
						break;
					case 'hueRotate':
						var a = matrix[0] * Math.PI / 180.0;
						var c = function (m1, m2, m3) { return m1 + Math.cos(a) * m2 + Math.sin(a) * m3; };
						matrix = [c(0.213, 0.787, -0.213), c(0.715, -0.715, -0.715), c(0.072, -0.072, 0.928), 0, 0,
						c(0.213, -0.213, 0.143), c(0.715, 0.285, 0.140), c(0.072, -0.072, -0.283), 0, 0,
						c(0.213, -0.213, -0.787), c(0.715, -0.715, 0.715), c(0.072, 0.928, 0.072), 0, 0,
							0, 0, 0, 1, 0,
							0, 0, 0, 0, 1
						];
						break;
					case 'luminanceToAlpha':
						matrix = [0, 0, 0, 0, 0,
							0, 0, 0, 0, 0,
							0, 0, 0, 0, 0,
							0.2125, 0.7154, 0.0721, 0, 0,
							0, 0, 0, 0, 1
						];
						break;
				}

				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 m(i, v) {
					var mi = matrix[i];
					return mi * (mi < 0 ? v - 255 : v);
				}

				var includeOpacity = this.attribute('includeOpacity').hasValue();
				this.apply = function (ctx, x, y, width, height) {
					// assuming x==0 && y==0 for now
					var srcData = ctx.getImageData(0, 0, width, height);
					for (var y = 0; y < height; y++) {
						for (var x = 0; x < width; x++) {
							var r = imGet(srcData.data, x, y, width, height, 0);
							var g = imGet(srcData.data, x, y, width, height, 1);
							var b = imGet(srcData.data, x, y, width, height, 2);
							var a = imGet(srcData.data, x, y, width, height, 3);
							var nr = m(0, r) + m(1, g) + m(2, b) + m(3, a) + m(4, 1);
							var ng = m(5, r) + m(6, g) + m(7, b) + m(8, a) + m(9, 1);
							var nb = m(10, r) + m(11, g) + m(12, b) + m(13, a) + m(14, 1);
							var na = m(15, r) + m(16, g) + m(17, b) + m(18, a) + m(19, 1);
							if (includeOpacity) {
								nr = ng = nb = 0;
								na *= a / 255;
							}
							imSet(srcData.data, x, y, width, height, 0, nr);
							imSet(srcData.data, x, y, width, height, 1, ng);
							imSet(srcData.data, x, y, width, height, 2, nb);
							imSet(srcData.data, x, y, width, height, 3, na);
						}
					}
					ctx.clearRect(0, 0, width, height);
					ctx.putImageData(srcData, 0, 0);
				};
			};
			svg.Element.feColorMatrix.prototype = new svg.Element.ElementBase;

			svg.Element.feGaussianBlur = function (node) {
				this.base = svg.Element.ElementBase;
				this.base(node);

				this.blurRadius = Math.floor(this.attribute('stdDeviation').numValue());
				this.extraFilterDistance = this.blurRadius;

				this.apply = function (ctx, x, y, width, height) {
					if (!stackblurCanvas || typeof stackblurCanvas.canvasRGBA === 'undefined') {
						svg.log('ERROR: StackBlur.js must be included for blur to work');
						return;
					}

					// StackBlur requires canvas be on document
					ctx.canvas.id = svg.UniqueId();
					{
						ctx.canvas.style.display = 'none';
						doc.body.appendChild(ctx.canvas);
					}
					stackblurCanvas.canvasRGBA(ctx.canvas, x, y, width, height, this.blurRadius);
					{
						doc.body.removeChild(ctx.canvas);
					}
				};
			};
			svg.Element.feGaussianBlur.prototype = new svg.Element.ElementBase;

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

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

			svg.Element.MISSING = function (node) {
				svg.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);
				}

				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 (windowEnv.scrollX) p.x += windowEnv.scrollX;
					if (windowEnv.scrollY) p.y += windowEnv.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;
				e.addStylesFromStyleDefinition();

				// 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);
					} else {
						svg.ViewPort.SetCurrent(defaultClientWidth, defaultClientHeight);
					}

					if (svg.opts['ignoreDimensions'] != true && (isFirstRender || (svg.opts['scaleWidth'] == null && svg.opts['scaleHeight'] == null))) {
						// set canvas size
						if (e.style('width').hasValue()) {
							ctx.canvas.width = e.style('width').toPixels('x');
							if (ctx.canvas.style) { ctx.canvas.style.width = ctx.canvas.width + 'px'; }
						}
						if (e.style('height').hasValue()) {
							ctx.canvas.height = e.style('height').toPixels('y');
							if (ctx.canvas.style) { ctx.canvas.style.height = ctx.canvas.height + 'px'; }
						}
					}
					var cWidth = ctx.canvas.clientWidth || ctx.canvas.width;
					var cHeight = ctx.canvas.clientHeight || ctx.canvas.height;
					if (svg.opts['ignoreDimensions'] == true && e.style('width').hasValue() && e.style('height').hasValue()) {
						cWidth = e.style('width').toPixels('x');
						cHeight = e.style('height').toPixels('y');
					}
					svg.ViewPort.SetCurrent(cWidth, cHeight);

					if (svg.opts['offsetX'] != null) e.attribute('x', true).value = svg.opts['offsetX'];
					if (svg.opts['offsetY'] != null) e.attribute('y', true).value = svg.opts['offsetY'];
					if (svg.opts['scaleWidth'] != null || svg.opts['scaleHeight'] != null) {
						var xRatio = null,
							yRatio = null,
							viewBox = svg.ToNumberArray(e.attribute('viewBox').value);

						if (svg.opts['scaleWidth'] != null) {
							if (e.attribute('width').hasValue()) xRatio = e.attribute('width').toPixels('x') / svg.opts['scaleWidth'];
							else if (!isNaN(viewBox[2])) xRatio = viewBox[2] / svg.opts['scaleWidth'];
						}

						if (svg.opts['scaleHeight'] != null) {
							if (e.attribute('height').hasValue()) yRatio = e.attribute('height').toPixels('y') / svg.opts['scaleHeight'];
							else if (!isNaN(viewBox[3])) yRatio = viewBox[3] / svg.opts['scaleHeight'];
						}

						if (xRatio == null) { xRatio = yRatio; }
						if (yRatio == null) { yRatio = xRatio; }

						e.attribute('width', true).value = svg.opts['scaleWidth'];
						e.attribute('height', true).value = svg.opts['scaleHeight'];
						e.style('transform', true, true).value += ' scale(' + (1.0 / xRatio) + ',' + (1.0 / yRatio) + ')';
					}

					// clear and render
					if (svg.opts['ignoreClear'] != true) {
						ctx.clearRect(0, 0, cWidth, cHeight);
					}
					e.render(ctx);
					if (isFirstRender) {
						isFirstRender = false;
						if (typeof svg.opts['renderCallback'] == 'function') svg.opts['renderCallback'](dom);
					}
				};

				var waitingForImages = true;
				if (svg.ImagesLoaded()) {
					waitingForImages = false;
					draw();
				}
				{
					//In node, in the most cases, we don't need the animation listener.
					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++) {
								var needAnimationUpdate = svg.Animations[i].update(1000 / svg.FRAMERATE);
								needUpdate = needUpdate || needAnimationUpdate;
							}
						}

						// need update from redraw?
						if (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) {
					if (!bb) {
						return;
					}

					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;
		}

		if (typeof CanvasRenderingContext2D != 'undefined') {
			CanvasRenderingContext2D.prototype.drawSvg = function (s, dx, dy, dw, dh, opts) {
				var cOpts = {
					ignoreMouse: true,
					ignoreAnimation: true,
					ignoreDimensions: true,
					ignoreClear: true,
					offsetX: dx,
					offsetY: dy,
					scaleWidth: dw,
					scaleHeight: dh
				};

				for (var prop in opts) {
					if (opts.hasOwnProperty(prop)) {
						cOpts[prop] = opts[prop];
					}
				}
				canvg(this.canvas, s, cOpts);
			};
		}

		// for tests
		canvg._build = build;

		module.exports = canvg;
	});

	return canvg_1;

})));