nw.jsでデスクトップアプリを作る(21) - three.jsのPathオブジェクトをシリアライズする

公開:2015-03-07 21:33
更新:2017-09-22 05:40
カテゴリ:nw.js,three.js,javascript,webgl,html5,nw.jsでデスクトップアプリを作る

というわけで昨日からTHREE.Pathのシリアライズ・デシリアライズするコードを書いていて先ほどようやくできた。

使い方だが、PathオブジェクトをJSON.stringfy()を渡すだけである。それでシリアライズされるから、永続化したければそれをファイル等に保存すればよい。

デシリアライズは専用メソッドのSF.deserialize()を使用する。先ほどシリアル化したものをJSON.parse()SF.deserialize()に渡せばPathオブジェクトのインスタンスが返る。

シリアライズ・デシリアライズのメソッドが非対称なのが気に入らないがこれはJSON.stringfy()を使ってシリアライズ処理を端折るためで致し方ないところなのである。ああ、JSON.stringfy()をラップすれば対称にできなくもないね。

実装方法としては「べた」な方法であると思う。オブジェクトの型情報をjsonデータに埋め込んでシリアライズし、デシリアライズはその情報をもとに行う。フォーマットはthree.jsのJSON Object Scene format 4 · mrdoob/three.js Wiki · GitHubを参考にしているが独自フォーマットとなってしまった。

JSON.stringfy()はオブジェクトにtoJSON()メソッドを実装することでJSON出力をカスタマイズすることができる。今回はこれを使用してJSON化する際に型情報を埋め込んでいる。

動作サンプル

新しいウィンドウで開く

ソースコード・リソース

/dev/horse/0006/index.html

<!DOCTYPE html>
<html vocab="http://schema.org" lang="ja">
<head>
  <title>Three.jsによる馬のアニメーション</title>
  <meta charset="utf-8" />
  <meta name="description" content="SVGアニメーションのテスト" />
  <meta name="keywords" content="Youtube,d3.js,Q.js,jquery" />
  <meta name="author" content="sfpgmr" />
  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" />
  <script type="text/javascript" src="./pathseg.js"></script>
  <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.2/d3.js"></script>
  <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/three.js/r70/three.js"></script>
  <script type="text/javascript" src="pathSerializer.js"></script>
  <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/q.js/1.1.2/q.min.js" ></script>
  <!--<script type="text/javascript" src="./graphics.js"></script> -->
  <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/normalize/3.0.2/normalize.min.css" />
  <style>
    body {
      margin: 0;
      padding: 0;
      overflow: hidden;
    }
    #svg {
      display:none;
    }
  </style>

</head>
<body>

  <div id="content"></div>
  <div id="svg"></div>
  <div id="svgcell"></div>
  <script type="text/javascript" src="index.js"></script>
    <script></script>
</body>
</html>

/dev/horse/0006/index.js

//The MIT License (MIT)
//
//Copyright (c) 2015 Satoshi Fujiwara
//
//Permission is hereby granted, free of charge, to any person obtaining a copy
//of this software and associated documentation files (the "Software"), to deal
//in the Software without restriction, including without limitation the rights
//to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//copies of the Software, and to permit persons to whom the Software is
//furnished to do so, subject to the following conditions:
//
//The above copyright notice and this permission notice shall be included in
//all copies or substantial portions of the Software.
//
//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//THE SOFTWARE.

/// <reference path="http://cdnjs.cloudflare.com/ajax/libs/d3/3.5.2/d3.js" />
/// <reference path="http://cdnjs.cloudflare.com/ajax/libs/three.js/r70/three.js" />
/// <reference path="..\intellisense\q.intellisense.js" />
/// <reference path="shapeSerializer.js" />

//var fs = require('fs');
//try {
//  fs.mkdirSync('./temp');
//} catch(e){
//  if(e.code != "EEXIST"){
//    throw e;
//  }
//}

// リリース時にはコメントアウトすること
// document.write('<script src="http://' + (location.host || 'localhost').split(':')[0] +
// ':35729/livereload.js?snipver=2"></' + 'script>');

// stackoverflowより
// 絶対座標から相対座標への変換
// http://stackoverflow.com/questions/14179333/convert-svg-path-to-relative-commands
function convertToRelative(path) {
  function set(type) {
    var args = [].slice.call(arguments, 1)
      , rcmd = 'createSVGPathSeg'+ type +'Rel'
      , rseg = path[rcmd].apply(path, args);
    segs.replaceItem(rseg, i);
  }
  var dx, dy, x0, y0, x1, y1, x2, y2, segs = path.pathSegList;
  for (var x = 0, y = 0, i = 0, len = segs.numberOfItems; i < len; i++) {
    var seg = segs.getItem(i)
      , c   = seg.pathSegTypeAsLetter;
    if (/[MLHVCSQTAZz]/.test(c)) {
      if ('x1' in seg) x1 = seg.x1 - x;
      if ('x2' in seg) x2 = seg.x2 - x;
      if ('y1' in seg) y1 = seg.y1 - y;
      if ('y2' in seg) y2 = seg.y2 - y;
      if ('x'  in seg) dx = -x + (x = seg.x);
      if ('y'  in seg) dy = -y + (y = seg.y);
      switch (c) {
        case 'M': set('Moveto',dx,dy);                   break;
        case 'L': set('Lineto',dx,dy);                   break;
        case 'H': set('LinetoHorizontal',dx);            break;
        case 'V': set('LinetoVertical',dy);              break;
        case 'C': set('CurvetoCubic',dx,dy,x1,y1,x2,y2); break;
        case 'S': set('CurvetoCubicSmooth',dx,dy,x2,y2); break;
        case 'Q': set('CurvetoQuadratic',dx,dy,x1,y1);   break;
        case 'T': set('CurvetoQuadraticSmooth',dx,dy);   break;
        case 'A': set('Arc',dx,dy,seg.r1,seg.r2,seg.angle,
                      seg.largeArcFlag,seg.sweepFlag);   break;
        case 'Z': case 'z': x = x0; y = y0; break;
      }
    }
    else {
      if ('x' in seg) x += seg.x;
      if ('y' in seg) y += seg.y;
    }
    // store the start of a subpath
    if (c == 'M' || c == 'm') {
      x0 = x;
      y0 = y;
    }
  }
  path.setAttribute('d', path.getAttribute('d').replace(/Z/g, 'z'));
}

// svg pathをthree.jsのshapeに変換する
// スペースの処理とy座標を反転するように修正
// From d3-threeD.js
// https://github.com/asutherland/d3-threeD
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */
var DEGS_TO_RADS = Math.PI / 180, UNIT_SIZE = 100;
var DIGIT_0 = 48, DIGIT_9 = 57, COMMA = 44, SPACE = 32, PERIOD = 46, MINUS = 45,E = 101;
function transformSVGPath(pathStr) {
	var path = new THREE.Path();
	var idx = 1, len = pathStr.length, activeCmd,
		x = 0, y = 0, nx = 0, ny = 0, firstX = null, firstY = null,
		x1 = 0, x2 = 0, y1 = 0, y2 = 0,
		rx = 0, ry = 0, xar = 0, laf = 0, sf = 0, cx, cy;
	function eatNum() {
		var sidx, c, isFloat = false, s;
		// eat delims
		while (idx < len) {
			c = pathStr.charCodeAt(idx);
			if (c !== COMMA && c !== SPACE)
				break;
			idx++;
		}
		if (c === MINUS)
			sidx = idx++;
		else
			sidx = idx;
		// eat number
		while (idx < len) {
			c = pathStr.charCodeAt(idx);
			if (DIGIT_0 <= c && c <= DIGIT_9) {
				idx++;
				continue;
			}
			else if (c === PERIOD || c === E || c === MINUS) {
				idx++;
				isFloat = true;
				continue;
			} 
			s = pathStr.substring(sidx, idx);
			return isFloat ? parseFloat(s) : parseInt(s);
		}
		s = pathStr.substring(sidx);
		return isFloat ? parseFloat(s) : parseInt(s);
	}
	function nextIsNum() {
		var c;
		// do permanently eat any delims...
		while (idx < len) {
			c = pathStr.charCodeAt(idx);
			if (c !== COMMA && c !== SPACE)
				break;
			idx++;
		}
		c = pathStr.charCodeAt(idx);
		return (c === MINUS || (DIGIT_0 <= c && c <= DIGIT_9));
	}
	var canRepeat;
	activeCmd = pathStr[0];
	while (idx <= len) {
		canRepeat = true;
		switch (activeCmd) {
			// moveto commands, become lineto's if repeated
			case 'M':
				x = eatNum();
				y = -eatNum();
				path.moveTo(x, y);
				activeCmd = 'L';
				firstX = x;
				firstY = y;
				break;
			case 'm':
				x += eatNum();
				y += -eatNum();
				path.moveTo(x, y);
				activeCmd = 'l';
				firstX = x;
				firstY = y;
				break;
			case 'Z':
			case 'z':
				canRepeat = false;
				if (x !== firstX || y !== firstY)
					path.lineTo(firstX, firstY);
				break;
			// - lines!
			case 'L':
			case 'H':
			case 'V':
				nx = (activeCmd === 'V') ? x : eatNum();
				ny = (activeCmd === 'H') ? y : -eatNum();
				path.lineTo(nx, ny);
				x = nx;
				y = ny;
				break;
			case 'l':
			case 'h':
			case 'v':
				nx = (activeCmd === 'v') ? x : (x + eatNum());
				ny = (activeCmd === 'h') ? y : (y + -eatNum());
				path.lineTo(nx, ny);
				x = nx;
				y = ny;
				break;
			// - cubic bezier
			case 'C':
				x1 = eatNum(); y1 =  -eatNum();
			case 'S':
				if (activeCmd === 'S') {
					x1 = 2 * x - x2; y1 = 2 * y - y2;
				}
				x2 = eatNum();
				y2 = -eatNum();
				nx = eatNum();
				ny = -eatNum();
				path.bezierCurveTo(x1, y1, x2, y2, nx, ny);
				x = nx; y = ny;
				break;
			case 'c':
				x1 = x + eatNum();
				y1 = y + -eatNum();
			case 's':
				if (activeCmd === 's') {
					x1 = 2 * x - x2;
					y1 = 2 * y - y2;
				}
				x2 = x + eatNum();
				y2 = y + -eatNum();
				nx = x + eatNum();
				ny = y + -eatNum();
				path.bezierCurveTo(x1, y1, x2, y2, nx, ny);
				x = nx; y = ny;
				break;
			// - quadratic bezier
			case 'Q':
				x1 = eatNum(); y1 = -eatNum();
			case 'T':
				if (activeCmd === 'T') {
					x1 = 2 * x - x1;
					y1 = 2 * y - y1;
				}
				nx = eatNum();
				ny = -eatNum();
				path.quadraticCurveTo(x1, y1, nx, ny);
				x = nx;
				y = ny;
				break;
			case 'q':
				x1 = x + eatNum();
				y1 = y + -eatNum();
			case 't':
				if (activeCmd === 't') {
					x1 = 2 * x - x1;
					y1 = 2 * y - y1;
				}
				nx = x + eatNum();
				ny = y + -eatNum();
				path.quadraticCurveTo(x1, y1, nx, ny);
				x = nx; y = ny;
				break;
			// - elliptical arc
			case 'A':
				rx = eatNum();
				ry = eatNum();
				xar = eatNum() * DEGS_TO_RADS;
				laf = eatNum();
				sf = eatNum();
				nx = eatNum();
				ny = -eatNum();
				if (rx !== ry) {
					console.warn("Forcing elliptical arc to be a circular one :(",
						rx, ry);
				}
				// SVG implementation notes does all the math for us! woo!
				// http://www.w3.org/TR/SVG/implnote.html#ArcImplementationNotes
				// step1, using x1 as x1'
				x1 = Math.cos(xar) * (x - nx) / 2 + Math.sin(xar) * (y - ny) / 2;
				y1 = -Math.sin(xar) * (x - nx) / 2 + Math.cos(xar) * (y - ny) / 2;
				// step 2, using x2 as cx'
				var norm = Math.sqrt(
					 (rx*rx * ry*ry - rx*rx * y1*y1 - ry*ry * x1*x1) /
					 (rx*rx * y1*y1 + ry*ry * x1*x1));
				if (laf === sf)
					norm = -norm;
				x2 = norm * rx * y1 / ry;
				y2 = norm * -ry * x1 / rx;
				// step 3
				cx = Math.cos(xar) * x2 - Math.sin(xar) * y2 + (x + nx) / 2;
				cy = Math.sin(xar) * x2 + Math.cos(xar) * y2 + (y + ny) / 2;
				var u = new THREE.Vector2(1, 0),
					v = new THREE.Vector2((x1 - x2) / rx,
					                      (y1 - y2) / ry);
				var startAng = Math.acos(u.dot(v) / u.length() / v.length());
				if (u.x * v.y - u.y * v.x < 0)
					startAng = -startAng;
				// we can reuse 'v' from start angle as our 'u' for delta angle
				u.x = (-x1 - x2) / rx;
				u.y = (-y1 - y2) / ry;
				var deltaAng = Math.acos(v.dot(u) / v.length() / u.length());
				// This normalization ends up making our curves fail to triangulate...
				if (v.x * u.y - v.y * u.x < 0)
					deltaAng = -deltaAng;
				if (!sf && deltaAng > 0)
					deltaAng -= Math.PI * 2;
				if (sf && deltaAng < 0)
					deltaAng += Math.PI * 2;
				path.absarc(cx, cy, rx, startAng, startAng + deltaAng, sf);
				x = nx;
				y = ny;
				break;
			default:
        if(activeCmd == ' '){
          break;
        }
				throw new Error("weird path command: " + activeCmd);
		}
		// just reissue the command
		if (canRepeat && nextIsNum())
			continue;
		activeCmd = pathStr[idx++];
	}
	return path;
}

// from gist
// https://gist.github.com/gabrielflorit/3758456
function createShape( geometry, color, x, y, z, rx, ry, rz, s ) {
  // flat shape
 
 // var geometry = new THREE.ShapeGeometry( shape );
  var material = new THREE.MeshBasicMaterial({
    color: color, 
    side: THREE.DoubleSide, 
    overdraw: true
  });
  
  var mesh = new THREE.Mesh( geometry, material );
  mesh.position.set( x, y, z );
  mesh.rotation.set( rx, ry, rz );
  mesh.scale.set( s, s, s );
 
  return mesh;
}

// メイン
window.addEventListener('load',function(){

  var WIDTH = window.innerWidth, HEIGHT = window.innerHeight;


  var renderer = new THREE.WebGLRenderer({ antialias: false, sortObjects: true });
  renderer.setSize(WIDTH, HEIGHT);
  renderer.setClearColor(0x000000, 1);
  renderer.domElement.id = 'console';
  renderer.domElement.className = 'console';
  renderer.domElement.style.zIndex = 0;

  d3.select('#content').node().appendChild(renderer.domElement);

  renderer.clear();
  // シーンの作成
  var scene = new THREE.Scene();

  // カメラの作成
  var camera = new THREE.PerspectiveCamera(90.0, WIDTH / HEIGHT);
  camera.position.x = 0.0;
  camera.position.y = 0.0;
  camera.position.z = (WIDTH / 2.0) * HEIGHT / WIDTH;
  camera.lookAt(new THREE.Vector3(0.0, 0.0, 0.0));

  var horseGroups = [];
  window.addEventListener('resize',function()
  {
    WIDTH = window.innerWidth;
    HEIGHT = window.innerHeight;
    renderer.setSize(WIDTH,HEIGHT);
    camera.aspect = WIDTH / HEIGHT;
    camera.position.z = (WIDTH / 2.0) * HEIGHT / WIDTH;
    camera.updateProjectionMatrix();
  });


  var xml = Q.nfbind(d3.xml);
  var gto;
  // SVGファイルから馬のメッシュを作る
  xml('./horse.svg','image/svg+xml')
  .then(function(svg){
    try {
      document.querySelector('#svg').appendChild(svg.firstChild);
      var shapes = [];
      var loader = new THREE.BufferGeometryLoader();
      d3.select('#svg').selectAll('g').each(function(){
        var g = d3.select(this);
        var boundingBox = g.select('rect').node();
        var paths = g.selectAll('path');
        var holes = [];
        var shape = null;
        var shapeId = null;
        paths.each(function(){
          // 馬セルの取り出しと座標補正
          var path = d3.select(this);
          convertToRelative(path.node());
          var m = path.node().createSVGPathSegMovetoRel
                  (path.node().pathSegList.getItem(0).x - boundingBox.x.baseVal.value - boundingBox.width.baseVal.value / 2.0,
                  path.node().pathSegList.getItem(0).y - boundingBox.y.baseVal.value - boundingBox.height.baseVal.value / 2.0
                  );
          path.node().pathSegList.replaceItem(m,0);
          path.attr('d',path.attr('d'));
          // svg pathからthree.js shapeへの変換
          var threePath = transformSVGPath(path.attr('d'));
          // シリアライズテスト //
          // シリアライズ
          var threePathString = JSON.stringify(threePath,null,2);
          console.log(threePathString.length);
          // デシリアライズ
          shape = SF.deserialize(JSON.parse(threePathString)).toShapes();
          shapeId = path.attr('id');
        });

        var shapeGeometry = new THREE.ShapeGeometry( shape );
        shapes.push({name:shapeId,shape:shapeGeometry});
      });
      var ggroup = new THREE.Group();
      for(var i = 0; i < 1;++i){
        var group = new THREE.Group();
        shapes.forEach(function(sm){
          var shapeMesh = createShape(sm.shape,0xFFFF00,0,0,0,0,0,0,1.0);
          shapeMesh.visible = false;
          shapeMesh.name = sm.name;
            group.add(shapeMesh);
          });
        group.position.x = 0;
        group.position.y = 0;
//        group.position.z = 2000.0 * Math.random() - 1000.0;
        horseGroups.push(group);
        ggroup.add(group);
      }
      scene.add(ggroup);
      ggroup.name = 'world';

      d3.select('#svg').remove();
    } catch (e) {
      console.log(e + '\n' + e.stack);
    }
    
    //レンダリング
    var r = 0.0;
    (function render(index){
      if(index > 10.0) index = 0.0;
      var idx = parseInt(index,10);
      for(var i = 0,end = horseGroups.length;i< end;++i){
        var g = horseGroups[i];
        g.getObjectByName('horse' + ('00' + idx.toString(10)).slice(-2)).visible = true;
        if(idx == 0){
          g.getObjectByName('horse10').visible = false;
        } else {
          g.getObjectByName('horse' + ('00' + (idx - 1).toString(10)).slice(-2)).visible = false;
        }
      }
      renderer.render(scene,camera);
      index += 0.25;
      requestAnimationFrame(render.bind(null,index));
    })(0);
//    console.log(d3.select('#svg').html());
  });
});

/dev/horse/0006/package.json

{
  "name": "5e85dd1519d7b1d09626",
  "version": "1.0.0",
  "description": "SVGからThree.jsのgeometryへの変換",
  "main": "app://localhost:35729/index.html",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": {
    "type": "git",
    "url": "git@gist.github.com:/892dc3eb0775c70130b6.git"
  },
  "keywords": [
    "Node-Webkit"
  ],
  "author": "S.F.",
  "license": "MIT",
  "devDependencies": {
  },
  "dependencies": {
    "q": "^1.1.2",
    "request": "^2.53.0"
  },
  "window": {
    "toolbar": true,
    "width": 1280,
    "height": 720
  }
}

/dev/horse/0006/pathseg.js

// SVGPathSeg API polyfill
// https://github.com/progers/pathseg
//
// This is a drop-in replacement for the SVGPathSeg and SVGPathSegList APIs that were removed from
// SVG2 (https://lists.w3.org/Archives/Public/www-svg/2015Jun/0044.html), including the latest spec
// changes which were implemented in Firefox 43 and Chrome 46.

(function() { "use strict";
    if (!("SVGPathSeg" in window)) {
        // Spec: http://www.w3.org/TR/SVG11/single-page.html#paths-InterfaceSVGPathSeg
        window.SVGPathSeg = function(type, typeAsLetter, owningPathSegList) {
            this.pathSegType = type;
            this.pathSegTypeAsLetter = typeAsLetter;
            this._owningPathSegList = owningPathSegList;
        }

        window.SVGPathSeg.prototype.classname = "SVGPathSeg";

        window.SVGPathSeg.PATHSEG_UNKNOWN = 0;
        window.SVGPathSeg.PATHSEG_CLOSEPATH = 1;
        window.SVGPathSeg.PATHSEG_MOVETO_ABS = 2;
        window.SVGPathSeg.PATHSEG_MOVETO_REL = 3;
        window.SVGPathSeg.PATHSEG_LINETO_ABS = 4;
        window.SVGPathSeg.PATHSEG_LINETO_REL = 5;
        window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS = 6;
        window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL = 7;
        window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS = 8;
        window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL = 9;
        window.SVGPathSeg.PATHSEG_ARC_ABS = 10;
        window.SVGPathSeg.PATHSEG_ARC_REL = 11;
        window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS = 12;
        window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL = 13;
        window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS = 14;
        window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL = 15;
        window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS = 16;
        window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL = 17;
        window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS = 18;
        window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL = 19;

        // Notify owning PathSegList on any changes so they can be synchronized back to the path element.
        window.SVGPathSeg.prototype._segmentChanged = function() {
            if (this._owningPathSegList)
                this._owningPathSegList.segmentChanged(this);
        }

        window.SVGPathSegClosePath = function(owningPathSegList) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CLOSEPATH, "z", owningPathSegList);
        }
        window.SVGPathSegClosePath.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegClosePath.prototype.toString = function() { return "[object SVGPathSegClosePath]"; }
        window.SVGPathSegClosePath.prototype._asPathString = function() { return this.pathSegTypeAsLetter; }
        window.SVGPathSegClosePath.prototype.clone = function() { return new window.SVGPathSegClosePath(undefined); }

        window.SVGPathSegMovetoAbs = function(owningPathSegList, x, y) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_MOVETO_ABS, "M", owningPathSegList);
            this._x = x;
            this._y = y;
        }
        window.SVGPathSegMovetoAbs.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegMovetoAbs.prototype.toString = function() { return "[object SVGPathSegMovetoAbs]"; }
        window.SVGPathSegMovetoAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x + " " + this._y; }
        window.SVGPathSegMovetoAbs.prototype.clone = function() { return new window.SVGPathSegMovetoAbs(undefined, this._x, this._y); }
        Object.defineProperty(window.SVGPathSegMovetoAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegMovetoAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegMovetoRel = function(owningPathSegList, x, y) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_MOVETO_REL, "m", owningPathSegList);
            this._x = x;
            this._y = y;
        }
        window.SVGPathSegMovetoRel.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegMovetoRel.prototype.toString = function() { return "[object SVGPathSegMovetoRel]"; }
        window.SVGPathSegMovetoRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x + " " + this._y; }
        window.SVGPathSegMovetoRel.prototype.clone = function() { return new window.SVGPathSegMovetoRel(undefined, this._x, this._y); }
        Object.defineProperty(window.SVGPathSegMovetoRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegMovetoRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegLinetoAbs = function(owningPathSegList, x, y) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_ABS, "L", owningPathSegList);
            this._x = x;
            this._y = y;
        }
        window.SVGPathSegLinetoAbs.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegLinetoAbs.prototype.toString = function() { return "[object SVGPathSegLinetoAbs]"; }
        window.SVGPathSegLinetoAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x + " " + this._y; }
        window.SVGPathSegLinetoAbs.prototype.clone = function() { return new window.SVGPathSegLinetoAbs(undefined, this._x, this._y); }
        Object.defineProperty(window.SVGPathSegLinetoAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegLinetoAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegLinetoRel = function(owningPathSegList, x, y) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_REL, "l", owningPathSegList);
            this._x = x;
            this._y = y;
        }
        window.SVGPathSegLinetoRel.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegLinetoRel.prototype.toString = function() { return "[object SVGPathSegLinetoRel]"; }
        window.SVGPathSegLinetoRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x + " " + this._y; }
        window.SVGPathSegLinetoRel.prototype.clone = function() { return new window.SVGPathSegLinetoRel(undefined, this._x, this._y); }
        Object.defineProperty(window.SVGPathSegLinetoRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegLinetoRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegCurvetoCubicAbs = function(owningPathSegList, x, y, x1, y1, x2, y2) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS, "C", owningPathSegList);
            this._x = x;
            this._y = y;
            this._x1 = x1;
            this._y1 = y1;
            this._x2 = x2;
            this._y2 = y2;
        }
        window.SVGPathSegCurvetoCubicAbs.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegCurvetoCubicAbs.prototype.toString = function() { return "[object SVGPathSegCurvetoCubicAbs]"; }
        window.SVGPathSegCurvetoCubicAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x1 + " " + this._y1 + " " + this._x2 + " " + this._y2 + " " + this._x + " " + this._y; }
        window.SVGPathSegCurvetoCubicAbs.prototype.clone = function() { return new window.SVGPathSegCurvetoCubicAbs(undefined, this._x, this._y, this._x1, this._y1, this._x2, this._y2); }
        Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, "x1", { get: function() { return this._x1; }, set: function(x1) { this._x1 = x1; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, "y1", { get: function() { return this._y1; }, set: function(y1) { this._y1 = y1; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, "x2", { get: function() { return this._x2; }, set: function(x2) { this._x2 = x2; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, "y2", { get: function() { return this._y2; }, set: function(y2) { this._y2 = y2; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegCurvetoCubicRel = function(owningPathSegList, x, y, x1, y1, x2, y2) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL, "c", owningPathSegList);
            this._x = x;
            this._y = y;
            this._x1 = x1;
            this._y1 = y1;
            this._x2 = x2;
            this._y2 = y2;
        }
        window.SVGPathSegCurvetoCubicRel.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegCurvetoCubicRel.prototype.toString = function() { return "[object SVGPathSegCurvetoCubicRel]"; }
        window.SVGPathSegCurvetoCubicRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x1 + " " + this._y1 + " " + this._x2 + " " + this._y2 + " " + this._x + " " + this._y; }
        window.SVGPathSegCurvetoCubicRel.prototype.clone = function() { return new window.SVGPathSegCurvetoCubicRel(undefined, this._x, this._y, this._x1, this._y1, this._x2, this._y2); }
        Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, "x1", { get: function() { return this._x1; }, set: function(x1) { this._x1 = x1; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, "y1", { get: function() { return this._y1; }, set: function(y1) { this._y1 = y1; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, "x2", { get: function() { return this._x2; }, set: function(x2) { this._x2 = x2; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, "y2", { get: function() { return this._y2; }, set: function(y2) { this._y2 = y2; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegCurvetoQuadraticAbs = function(owningPathSegList, x, y, x1, y1) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS, "Q", owningPathSegList);
            this._x = x;
            this._y = y;
            this._x1 = x1;
            this._y1 = y1;
        }
        window.SVGPathSegCurvetoQuadraticAbs.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegCurvetoQuadraticAbs.prototype.toString = function() { return "[object SVGPathSegCurvetoQuadraticAbs]"; }
        window.SVGPathSegCurvetoQuadraticAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x1 + " " + this._y1 + " " + this._x + " " + this._y; }
        window.SVGPathSegCurvetoQuadraticAbs.prototype.clone = function() { return new window.SVGPathSegCurvetoQuadraticAbs(undefined, this._x, this._y, this._x1, this._y1); }
        Object.defineProperty(window.SVGPathSegCurvetoQuadraticAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoQuadraticAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoQuadraticAbs.prototype, "x1", { get: function() { return this._x1; }, set: function(x1) { this._x1 = x1; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoQuadraticAbs.prototype, "y1", { get: function() { return this._y1; }, set: function(y1) { this._y1 = y1; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegCurvetoQuadraticRel = function(owningPathSegList, x, y, x1, y1) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL, "q", owningPathSegList);
            this._x = x;
            this._y = y;
            this._x1 = x1;
            this._y1 = y1;
        }
        window.SVGPathSegCurvetoQuadraticRel.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegCurvetoQuadraticRel.prototype.toString = function() { return "[object SVGPathSegCurvetoQuadraticRel]"; }
        window.SVGPathSegCurvetoQuadraticRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x1 + " " + this._y1 + " " + this._x + " " + this._y; }
        window.SVGPathSegCurvetoQuadraticRel.prototype.clone = function() { return new window.SVGPathSegCurvetoQuadraticRel(undefined, this._x, this._y, this._x1, this._y1); }
        Object.defineProperty(window.SVGPathSegCurvetoQuadraticRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoQuadraticRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoQuadraticRel.prototype, "x1", { get: function() { return this._x1; }, set: function(x1) { this._x1 = x1; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoQuadraticRel.prototype, "y1", { get: function() { return this._y1; }, set: function(y1) { this._y1 = y1; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegArcAbs = function(owningPathSegList, x, y, r1, r2, angle, largeArcFlag, sweepFlag) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_ARC_ABS, "A", owningPathSegList);
            this._x = x;
            this._y = y;
            this._r1 = r1;
            this._r2 = r2;
            this._angle = angle;
            this._largeArcFlag = largeArcFlag;
            this._sweepFlag = sweepFlag;
        }
        window.SVGPathSegArcAbs.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegArcAbs.prototype.toString = function() { return "[object SVGPathSegArcAbs]"; }
        window.SVGPathSegArcAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._r1 + " " + this._r2 + " " + this._angle + " " + (this._largeArcFlag ? "1" : "0") + " " + (this._sweepFlag ? "1" : "0") + " " + this._x + " " + this._y; }
        window.SVGPathSegArcAbs.prototype.clone = function() { return new window.SVGPathSegArcAbs(undefined, this._x, this._y, this._r1, this._r2, this._angle, this._largeArcFlag, this._sweepFlag); }
        Object.defineProperty(window.SVGPathSegArcAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegArcAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegArcAbs.prototype, "r1", { get: function() { return this._r1; }, set: function(r1) { this._r1 = r1; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegArcAbs.prototype, "r2", { get: function() { return this._r2; }, set: function(r2) { this._r2 = r2; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegArcAbs.prototype, "angle", { get: function() { return this._angle; }, set: function(angle) { this._angle = angle; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegArcAbs.prototype, "largeArcFlag", { get: function() { return this._largeArcFlag; }, set: function(largeArcFlag) { this._largeArcFlag = largeArcFlag; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegArcAbs.prototype, "sweepFlag", { get: function() { return this._sweepFlag; }, set: function(sweepFlag) { this._sweepFlag = sweepFlag; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegArcRel = function(owningPathSegList, x, y, r1, r2, angle, largeArcFlag, sweepFlag) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_ARC_REL, "a", owningPathSegList);
            this._x = x;
            this._y = y;
            this._r1 = r1;
            this._r2 = r2;
            this._angle = angle;
            this._largeArcFlag = largeArcFlag;
            this._sweepFlag = sweepFlag;
        }
        window.SVGPathSegArcRel.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegArcRel.prototype.toString = function() { return "[object SVGPathSegArcRel]"; }
        window.SVGPathSegArcRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._r1 + " " + this._r2 + " " + this._angle + " " + (this._largeArcFlag ? "1" : "0") + " " + (this._sweepFlag ? "1" : "0") + " " + this._x + " " + this._y; }
        window.SVGPathSegArcRel.prototype.clone = function() { return new window.SVGPathSegArcRel(undefined, this._x, this._y, this._r1, this._r2, this._angle, this._largeArcFlag, this._sweepFlag); }
        Object.defineProperty(window.SVGPathSegArcRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegArcRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegArcRel.prototype, "r1", { get: function() { return this._r1; }, set: function(r1) { this._r1 = r1; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegArcRel.prototype, "r2", { get: function() { return this._r2; }, set: function(r2) { this._r2 = r2; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegArcRel.prototype, "angle", { get: function() { return this._angle; }, set: function(angle) { this._angle = angle; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegArcRel.prototype, "largeArcFlag", { get: function() { return this._largeArcFlag; }, set: function(largeArcFlag) { this._largeArcFlag = largeArcFlag; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegArcRel.prototype, "sweepFlag", { get: function() { return this._sweepFlag; }, set: function(sweepFlag) { this._sweepFlag = sweepFlag; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegLinetoHorizontalAbs = function(owningPathSegList, x) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS, "H", owningPathSegList);
            this._x = x;
        }
        window.SVGPathSegLinetoHorizontalAbs.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegLinetoHorizontalAbs.prototype.toString = function() { return "[object SVGPathSegLinetoHorizontalAbs]"; }
        window.SVGPathSegLinetoHorizontalAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x; }
        window.SVGPathSegLinetoHorizontalAbs.prototype.clone = function() { return new window.SVGPathSegLinetoHorizontalAbs(undefined, this._x); }
        Object.defineProperty(window.SVGPathSegLinetoHorizontalAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegLinetoHorizontalRel = function(owningPathSegList, x) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL, "h", owningPathSegList);
            this._x = x;
        }
        window.SVGPathSegLinetoHorizontalRel.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegLinetoHorizontalRel.prototype.toString = function() { return "[object SVGPathSegLinetoHorizontalRel]"; }
        window.SVGPathSegLinetoHorizontalRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x; }
        window.SVGPathSegLinetoHorizontalRel.prototype.clone = function() { return new window.SVGPathSegLinetoHorizontalRel(undefined, this._x); }
        Object.defineProperty(window.SVGPathSegLinetoHorizontalRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegLinetoVerticalAbs = function(owningPathSegList, y) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS, "V", owningPathSegList);
            this._y = y;
        }
        window.SVGPathSegLinetoVerticalAbs.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegLinetoVerticalAbs.prototype.toString = function() { return "[object SVGPathSegLinetoVerticalAbs]"; }
        window.SVGPathSegLinetoVerticalAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._y; }
        window.SVGPathSegLinetoVerticalAbs.prototype.clone = function() { return new window.SVGPathSegLinetoVerticalAbs(undefined, this._y); }
        Object.defineProperty(window.SVGPathSegLinetoVerticalAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegLinetoVerticalRel = function(owningPathSegList, y) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL, "v", owningPathSegList);
            this._y = y;
        }
        window.SVGPathSegLinetoVerticalRel.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegLinetoVerticalRel.prototype.toString = function() { return "[object SVGPathSegLinetoVerticalRel]"; }
        window.SVGPathSegLinetoVerticalRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._y; }
        window.SVGPathSegLinetoVerticalRel.prototype.clone = function() { return new window.SVGPathSegLinetoVerticalRel(undefined, this._y); }
        Object.defineProperty(window.SVGPathSegLinetoVerticalRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegCurvetoCubicSmoothAbs = function(owningPathSegList, x, y, x2, y2) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS, "S", owningPathSegList);
            this._x = x;
            this._y = y;
            this._x2 = x2;
            this._y2 = y2;
        }
        window.SVGPathSegCurvetoCubicSmoothAbs.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegCurvetoCubicSmoothAbs.prototype.toString = function() { return "[object SVGPathSegCurvetoCubicSmoothAbs]"; }
        window.SVGPathSegCurvetoCubicSmoothAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x2 + " " + this._y2 + " " + this._x + " " + this._y; }
        window.SVGPathSegCurvetoCubicSmoothAbs.prototype.clone = function() { return new window.SVGPathSegCurvetoCubicSmoothAbs(undefined, this._x, this._y, this._x2, this._y2); }
        Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothAbs.prototype, "x2", { get: function() { return this._x2; }, set: function(x2) { this._x2 = x2; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothAbs.prototype, "y2", { get: function() { return this._y2; }, set: function(y2) { this._y2 = y2; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegCurvetoCubicSmoothRel = function(owningPathSegList, x, y, x2, y2) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL, "s", owningPathSegList);
            this._x = x;
            this._y = y;
            this._x2 = x2;
            this._y2 = y2;
        }
        window.SVGPathSegCurvetoCubicSmoothRel.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegCurvetoCubicSmoothRel.prototype.toString = function() { return "[object SVGPathSegCurvetoCubicSmoothRel]"; }
        window.SVGPathSegCurvetoCubicSmoothRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x2 + " " + this._y2 + " " + this._x + " " + this._y; }
        window.SVGPathSegCurvetoCubicSmoothRel.prototype.clone = function() { return new window.SVGPathSegCurvetoCubicSmoothRel(undefined, this._x, this._y, this._x2, this._y2); }
        Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothRel.prototype, "x2", { get: function() { return this._x2; }, set: function(x2) { this._x2 = x2; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothRel.prototype, "y2", { get: function() { return this._y2; }, set: function(y2) { this._y2 = y2; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegCurvetoQuadraticSmoothAbs = function(owningPathSegList, x, y) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS, "T", owningPathSegList);
            this._x = x;
            this._y = y;
        }
        window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype.toString = function() { return "[object SVGPathSegCurvetoQuadraticSmoothAbs]"; }
        window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x + " " + this._y; }
        window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype.clone = function() { return new window.SVGPathSegCurvetoQuadraticSmoothAbs(undefined, this._x, this._y); }
        Object.defineProperty(window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

        window.SVGPathSegCurvetoQuadraticSmoothRel = function(owningPathSegList, x, y) {
            window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL, "t", owningPathSegList);
            this._x = x;
            this._y = y;
        }
        window.SVGPathSegCurvetoQuadraticSmoothRel.prototype = Object.create(window.SVGPathSeg.prototype);
        window.SVGPathSegCurvetoQuadraticSmoothRel.prototype.toString = function() { return "[object SVGPathSegCurvetoQuadraticSmoothRel]"; }
        window.SVGPathSegCurvetoQuadraticSmoothRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x + " " + this._y; }
        window.SVGPathSegCurvetoQuadraticSmoothRel.prototype.clone = function() { return new window.SVGPathSegCurvetoQuadraticSmoothRel(undefined, this._x, this._y); }
        Object.defineProperty(window.SVGPathSegCurvetoQuadraticSmoothRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
        Object.defineProperty(window.SVGPathSegCurvetoQuadraticSmoothRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

        // Add createSVGPathSeg* functions to window.SVGPathElement.
        // Spec: http://www.w3.org/TR/SVG11/single-page.html#paths-Interfacewindow.SVGPathElement.
        window.SVGPathElement.prototype.createSVGPathSegClosePath = function() { return new window.SVGPathSegClosePath(undefined); }
        window.SVGPathElement.prototype.createSVGPathSegMovetoAbs = function(x, y) { return new window.SVGPathSegMovetoAbs(undefined, x, y); }
        window.SVGPathElement.prototype.createSVGPathSegMovetoRel = function(x, y) { return new window.SVGPathSegMovetoRel(undefined, x, y); }
        window.SVGPathElement.prototype.createSVGPathSegLinetoAbs = function(x, y) { return new window.SVGPathSegLinetoAbs(undefined, x, y); }
        window.SVGPathElement.prototype.createSVGPathSegLinetoRel = function(x, y) { return new window.SVGPathSegLinetoRel(undefined, x, y); }
        window.SVGPathElement.prototype.createSVGPathSegCurvetoCubicAbs = function(x, y, x1, y1, x2, y2) { return new window.SVGPathSegCurvetoCubicAbs(undefined, x, y, x1, y1, x2, y2); }
        window.SVGPathElement.prototype.createSVGPathSegCurvetoCubicRel = function(x, y, x1, y1, x2, y2) { return new window.SVGPathSegCurvetoCubicRel(undefined, x, y, x1, y1, x2, y2); }
        window.SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticAbs = function(x, y, x1, y1) { return new window.SVGPathSegCurvetoQuadraticAbs(undefined, x, y, x1, y1); }
        window.SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticRel = function(x, y, x1, y1) { return new window.SVGPathSegCurvetoQuadraticRel(undefined, x, y, x1, y1); }
        window.SVGPathElement.prototype.createSVGPathSegArcAbs = function(x, y, r1, r2, angle, largeArcFlag, sweepFlag) { return new window.SVGPathSegArcAbs(undefined, x, y, r1, r2, angle, largeArcFlag, sweepFlag); }
        window.SVGPathElement.prototype.createSVGPathSegArcRel = function(x, y, r1, r2, angle, largeArcFlag, sweepFlag) { return new window.SVGPathSegArcRel(undefined, x, y, r1, r2, angle, largeArcFlag, sweepFlag); }
        window.SVGPathElement.prototype.createSVGPathSegLinetoHorizontalAbs = function(x) { return new window.SVGPathSegLinetoHorizontalAbs(undefined, x); }
        window.SVGPathElement.prototype.createSVGPathSegLinetoHorizontalRel = function(x) { return new window.SVGPathSegLinetoHorizontalRel(undefined, x); }
        window.SVGPathElement.prototype.createSVGPathSegLinetoVerticalAbs = function(y) { return new window.SVGPathSegLinetoVerticalAbs(undefined, y); }
        window.SVGPathElement.prototype.createSVGPathSegLinetoVerticalRel = function(y) { return new window.SVGPathSegLinetoVerticalRel(undefined, y); }
        window.SVGPathElement.prototype.createSVGPathSegCurvetoCubicSmoothAbs = function(x, y, x2, y2) { return new window.SVGPathSegCurvetoCubicSmoothAbs(undefined, x, y, x2, y2); }
        window.SVGPathElement.prototype.createSVGPathSegCurvetoCubicSmoothRel = function(x, y, x2, y2) { return new window.SVGPathSegCurvetoCubicSmoothRel(undefined, x, y, x2, y2); }
        window.SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticSmoothAbs = function(x, y) { return new window.SVGPathSegCurvetoQuadraticSmoothAbs(undefined, x, y); }
        window.SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticSmoothRel = function(x, y) { return new window.SVGPathSegCurvetoQuadraticSmoothRel(undefined, x, y); }
    }

    if (!("SVGPathSegList" in window)) {
        // Spec: http://www.w3.org/TR/SVG11/single-page.html#paths-InterfaceSVGPathSegList
        window.SVGPathSegList = function(pathElement) {
            this._pathElement = pathElement;
            this._list = this._parsePath(this._pathElement.getAttribute("d"));

            // Use a MutationObserver to catch changes to the path's "d" attribute.
            this._mutationObserverConfig = { "attributes": true, "attributeFilter": ["d"] };
            this._pathElementMutationObserver = new MutationObserver(this._updateListFromPathMutations.bind(this));
            this._pathElementMutationObserver.observe(this._pathElement, this._mutationObserverConfig);
        }

        window.SVGPathSegList.prototype.classname = "SVGPathSegList";

        Object.defineProperty(window.SVGPathSegList.prototype, "numberOfItems", {
            get: function() {
                this._checkPathSynchronizedToList();
                return this._list.length;
            },
            enumerable: true
        });

        // Add the pathSegList accessors to window.SVGPathElement.
        // Spec: http://www.w3.org/TR/SVG11/single-page.html#paths-InterfaceSVGAnimatedPathData
        Object.defineProperty(window.SVGPathElement.prototype, "pathSegList", {
            get: function() {
                if (!this._pathSegList)
                    this._pathSegList = new window.SVGPathSegList(this);
                return this._pathSegList;
            },
            enumerable: true
        });
        // FIXME: The following are not implemented and simply return window.SVGPathElement.pathSegList.
        Object.defineProperty(window.SVGPathElement.prototype, "normalizedPathSegList", { get: function() { return this.pathSegList; }, enumerable: true });
        Object.defineProperty(window.SVGPathElement.prototype, "animatedPathSegList", { get: function() { return this.pathSegList; }, enumerable: true });
        Object.defineProperty(window.SVGPathElement.prototype, "animatedNormalizedPathSegList", { get: function() { return this.pathSegList; }, enumerable: true });

        // Process any pending mutations to the path element and update the list as needed.
        // This should be the first call of all public functions and is needed because
        // MutationObservers are not synchronous so we can have pending asynchronous mutations.
        window.SVGPathSegList.prototype._checkPathSynchronizedToList = function() {
            this._updateListFromPathMutations(this._pathElementMutationObserver.takeRecords());
        }

        window.SVGPathSegList.prototype._updateListFromPathMutations = function(mutationRecords) {
            if (!this._pathElement)
                return;
            var hasPathMutations = false;
            mutationRecords.forEach(function(record) {
                if (record.attributeName == "d")
                    hasPathMutations = true;
            });
            if (hasPathMutations)
                this._list = this._parsePath(this._pathElement.getAttribute("d"));
        }

        // Serialize the list and update the path's 'd' attribute.
        window.SVGPathSegList.prototype._writeListToPath = function() {
            this._pathElementMutationObserver.disconnect();
            this._pathElement.setAttribute("d", window.SVGPathSegList._pathSegArrayAsString(this._list));
            this._pathElementMutationObserver.observe(this._pathElement, this._mutationObserverConfig);
        }

        // When a path segment changes the list needs to be synchronized back to the path element.
        window.SVGPathSegList.prototype.segmentChanged = function(pathSeg) {
            this._writeListToPath();
        }

        window.SVGPathSegList.prototype.clear = function() {
            this._checkPathSynchronizedToList();

            this._list.forEach(function(pathSeg) {
                pathSeg._owningPathSegList = null;
            });
            this._list = [];
            this._writeListToPath();
        }

        window.SVGPathSegList.prototype.initialize = function(newItem) {
            this._checkPathSynchronizedToList();

            this._list = [newItem];
            newItem._owningPathSegList = this;
            this._writeListToPath();
            return newItem;
        }

        window.SVGPathSegList.prototype._checkValidIndex = function(index) {
            if (isNaN(index) || index < 0 || index >= this.numberOfItems)
                throw "INDEX_SIZE_ERR";
        }

        window.SVGPathSegList.prototype.getItem = function(index) {
            this._checkPathSynchronizedToList();

            this._checkValidIndex(index);
            return this._list[index];
        }

        window.SVGPathSegList.prototype.insertItemBefore = function(newItem, index) {
            this._checkPathSynchronizedToList();

            // Spec: If the index is greater than or equal to numberOfItems, then the new item is appended to the end of the list.
            if (index > this.numberOfItems)
                index = this.numberOfItems;
            if (newItem._owningPathSegList) {
                // SVG2 spec says to make a copy.
                newItem = newItem.clone();
            }
            this._list.splice(index, 0, newItem);
            newItem._owningPathSegList = this;
            this._writeListToPath();
            return newItem;
        }

        window.SVGPathSegList.prototype.replaceItem = function(newItem, index) {
            this._checkPathSynchronizedToList();

            if (newItem._owningPathSegList) {
                // SVG2 spec says to make a copy.
                newItem = newItem.clone();
            }
            this._checkValidIndex(index);
            this._list[index] = newItem;
            newItem._owningPathSegList = this;
            this._writeListToPath();
            return newItem;
        }

        window.SVGPathSegList.prototype.removeItem = function(index) {
            this._checkPathSynchronizedToList();

            this._checkValidIndex(index);
            var item = this._list[index];
            this._list.splice(index, 1);
            this._writeListToPath();
            return item;
        }

        window.SVGPathSegList.prototype.appendItem = function(newItem) {
            this._checkPathSynchronizedToList();

            if (newItem._owningPathSegList) {
                // SVG2 spec says to make a copy.
                newItem = newItem.clone();
            }
            this._list.push(newItem);
            newItem._owningPathSegList = this;
            // TODO: Optimize this to just append to the existing attribute.
            this._writeListToPath();
            return newItem;
        }

        window.SVGPathSegList._pathSegArrayAsString = function(pathSegArray) {
            var string = "";
            var first = true;
            pathSegArray.forEach(function(pathSeg) {
                if (first) {
                    first = false;
                    string += pathSeg._asPathString();
                } else {
                    string += " " + pathSeg._asPathString();
                }
            });
            return string;
        }

        // This closely follows SVGPathParser::parsePath from Source/core/svg/SVGPathParser.cpp.
        window.SVGPathSegList.prototype._parsePath = function(string) {
            if (!string || string.length == 0)
                return [];

            var owningPathSegList = this;

            var Builder = function() {
                this.pathSegList = [];
            }

            Builder.prototype.appendSegment = function(pathSeg) {
                this.pathSegList.push(pathSeg);
            }

            var Source = function(string) {
                this._string = string;
                this._currentIndex = 0;
                this._endIndex = this._string.length;
                this._previousCommand = window.SVGPathSeg.PATHSEG_UNKNOWN;

                this._skipOptionalSpaces();
            }

            Source.prototype._isCurrentSpace = function() {
                var character = this._string[this._currentIndex];
                return character <= " " && (character == " " || character == "\n" || character == "\t" || character == "\r" || character == "\f");
            }

            Source.prototype._skipOptionalSpaces = function() {
                while (this._currentIndex < this._endIndex && this._isCurrentSpace())
                    this._currentIndex++;
                return this._currentIndex < this._endIndex;
            }

            Source.prototype._skipOptionalSpacesOrDelimiter = function() {
                if (this._currentIndex < this._endIndex && !this._isCurrentSpace() && this._string.charAt(this._currentIndex) != ",")
                    return false;
                if (this._skipOptionalSpaces()) {
                    if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) == ",") {
                        this._currentIndex++;
                        this._skipOptionalSpaces();
                    }
                }
                return this._currentIndex < this._endIndex;
            }

            Source.prototype.hasMoreData = function() {
                return this._currentIndex < this._endIndex;
            }

            Source.prototype.peekSegmentType = function() {
                var lookahead = this._string[this._currentIndex];
                return this._pathSegTypeFromChar(lookahead);
            }

            Source.prototype._pathSegTypeFromChar = function(lookahead) {
                switch (lookahead) {
                case "Z":
                case "z":
                    return window.SVGPathSeg.PATHSEG_CLOSEPATH;
                case "M":
                    return window.SVGPathSeg.PATHSEG_MOVETO_ABS;
                case "m":
                    return window.SVGPathSeg.PATHSEG_MOVETO_REL;
                case "L":
                    return window.SVGPathSeg.PATHSEG_LINETO_ABS;
                case "l":
                    return window.SVGPathSeg.PATHSEG_LINETO_REL;
                case "C":
                    return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS;
                case "c":
                    return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL;
                case "Q":
                    return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS;
                case "q":
                    return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL;
                case "A":
                    return window.SVGPathSeg.PATHSEG_ARC_ABS;
                case "a":
                    return window.SVGPathSeg.PATHSEG_ARC_REL;
                case "H":
                    return window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS;
                case "h":
                    return window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL;
                case "V":
                    return window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS;
                case "v":
                    return window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL;
                case "S":
                    return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS;
                case "s":
                    return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL;
                case "T":
                    return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS;
                case "t":
                    return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL;
                default:
                    return window.SVGPathSeg.PATHSEG_UNKNOWN;
                }
            }

            Source.prototype._nextCommandHelper = function(lookahead, previousCommand) {
                // Check for remaining coordinates in the current command.
                if ((lookahead == "+" || lookahead == "-" || lookahead == "." || (lookahead >= "0" && lookahead <= "9")) && previousCommand != window.SVGPathSeg.PATHSEG_CLOSEPATH) {
                    if (previousCommand == window.SVGPathSeg.PATHSEG_MOVETO_ABS)
                        return window.SVGPathSeg.PATHSEG_LINETO_ABS;
                    if (previousCommand == window.SVGPathSeg.PATHSEG_MOVETO_REL)
                        return window.SVGPathSeg.PATHSEG_LINETO_REL;
                    return previousCommand;
                }
                return window.SVGPathSeg.PATHSEG_UNKNOWN;
            }

            Source.prototype.initialCommandIsMoveTo = function() {
                // If the path is empty it is still valid, so return true.
                if (!this.hasMoreData())
                    return true;
                var command = this.peekSegmentType();
                // Path must start with moveTo.
                return command == window.SVGPathSeg.PATHSEG_MOVETO_ABS || command == window.SVGPathSeg.PATHSEG_MOVETO_REL;
            }

            // Parse a number from an SVG path. This very closely follows genericParseNumber(...) from Source/core/svg/SVGParserUtilities.cpp.
            // Spec: http://www.w3.org/TR/SVG11/single-page.html#paths-PathDataBNF
            Source.prototype._parseNumber = function() {
                var exponent = 0;
                var integer = 0;
                var frac = 1;
                var decimal = 0;
                var sign = 1;
                var expsign = 1;

                var startIndex = this._currentIndex;

                this._skipOptionalSpaces();

                // Read the sign.
                if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) == "+")
                    this._currentIndex++;
                else if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) == "-") {
                    this._currentIndex++;
                    sign = -1;
                }

                if (this._currentIndex == this._endIndex || ((this._string.charAt(this._currentIndex) < "0" || this._string.charAt(this._currentIndex) > "9") && this._string.charAt(this._currentIndex) != "."))
                    // The first character of a number must be one of [0-9+-.].
                    return undefined;

                // Read the integer part, build right-to-left.
                var startIntPartIndex = this._currentIndex;
                while (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) >= "0" && this._string.charAt(this._currentIndex) <= "9")
                    this._currentIndex++; // Advance to first non-digit.

                if (this._currentIndex != startIntPartIndex) {
                    var scanIntPartIndex = this._currentIndex - 1;
                    var multiplier = 1;
                    while (scanIntPartIndex >= startIntPartIndex) {
                        integer += multiplier * (this._string.charAt(scanIntPartIndex--) - "0");
                        multiplier *= 10;
                    }
                }

                // Read the decimals.
                if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) == ".") {
                    this._currentIndex++;

                    // There must be a least one digit following the .
                    if (this._currentIndex >= this._endIndex || this._string.charAt(this._currentIndex) < "0" || this._string.charAt(this._currentIndex) > "9")
                        return undefined;
                    while (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) >= "0" && this._string.charAt(this._currentIndex) <= "9") {
                        frac *= 10;
                        decimal += (this._string.charAt(this._currentIndex) - "0") / frac;
                        this._currentIndex += 1;
                    }
                }

                // Read the exponent part.
                if (this._currentIndex != startIndex && this._currentIndex + 1 < this._endIndex && (this._string.charAt(this._currentIndex) == "e" || this._string.charAt(this._currentIndex) == "E") && (this._string.charAt(this._currentIndex + 1) != "x" && this._string.charAt(this._currentIndex + 1) != "m")) {
                    this._currentIndex++;

                    // Read the sign of the exponent.
                    if (this._string.charAt(this._currentIndex) == "+") {
                        this._currentIndex++;
                    } else if (this._string.charAt(this._currentIndex) == "-") {
                        this._currentIndex++;
                        expsign = -1;
                    }

                    // There must be an exponent.
                    if (this._currentIndex >= this._endIndex || this._string.charAt(this._currentIndex) < "0" || this._string.charAt(this._currentIndex) > "9")
                        return undefined;

                    while (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) >= "0" && this._string.charAt(this._currentIndex) <= "9") {
                        exponent *= 10;
                        exponent += (this._string.charAt(this._currentIndex) - "0");
                        this._currentIndex++;
                    }
                }

                var number = integer + decimal;
                number *= sign;

                if (exponent)
                    number *= Math.pow(10, expsign * exponent);

                if (startIndex == this._currentIndex)
                    return undefined;

                this._skipOptionalSpacesOrDelimiter();

                return number;
            }

            Source.prototype._parseArcFlag = function() {
                if (this._currentIndex >= this._endIndex)
                    return undefined;
                var flag = false;
                var flagChar = this._string.charAt(this._currentIndex++);
                if (flagChar == "0")
                    flag = false;
                else if (flagChar == "1")
                    flag = true;
                else
                    return undefined;

                this._skipOptionalSpacesOrDelimiter();
                return flag;
            }

            Source.prototype.parseSegment = function() {
                var lookahead = this._string[this._currentIndex];
                var command = this._pathSegTypeFromChar(lookahead);
                if (command == window.SVGPathSeg.PATHSEG_UNKNOWN) {
                    // Possibly an implicit command. Not allowed if this is the first command.
                    if (this._previousCommand == window.SVGPathSeg.PATHSEG_UNKNOWN)
                        return null;
                    command = this._nextCommandHelper(lookahead, this._previousCommand);
                    if (command == window.SVGPathSeg.PATHSEG_UNKNOWN)
                        return null;
                } else {
                    this._currentIndex++;
                }

                this._previousCommand = command;

                switch (command) {
                case window.SVGPathSeg.PATHSEG_MOVETO_REL:
                    return new window.SVGPathSegMovetoRel(owningPathSegList, this._parseNumber(), this._parseNumber());
                case window.SVGPathSeg.PATHSEG_MOVETO_ABS:
                    return new window.SVGPathSegMovetoAbs(owningPathSegList, this._parseNumber(), this._parseNumber());
                case window.SVGPathSeg.PATHSEG_LINETO_REL:
                    return new window.SVGPathSegLinetoRel(owningPathSegList, this._parseNumber(), this._parseNumber());
                case window.SVGPathSeg.PATHSEG_LINETO_ABS:
                    return new window.SVGPathSegLinetoAbs(owningPathSegList, this._parseNumber(), this._parseNumber());
                case window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL:
                    return new window.SVGPathSegLinetoHorizontalRel(owningPathSegList, this._parseNumber());
                case window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS:
                    return new window.SVGPathSegLinetoHorizontalAbs(owningPathSegList, this._parseNumber());
                case window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL:
                    return new window.SVGPathSegLinetoVerticalRel(owningPathSegList, this._parseNumber());
                case window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS:
                    return new window.SVGPathSegLinetoVerticalAbs(owningPathSegList, this._parseNumber());
                case window.SVGPathSeg.PATHSEG_CLOSEPATH:
                    this._skipOptionalSpaces();
                    return new window.SVGPathSegClosePath(owningPathSegList);
                case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL:
                    var points = {x1: this._parseNumber(), y1: this._parseNumber(), x2: this._parseNumber(), y2: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
                    return new window.SVGPathSegCurvetoCubicRel(owningPathSegList, points.x, points.y, points.x1, points.y1, points.x2, points.y2);
                case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS:
                    var points = {x1: this._parseNumber(), y1: this._parseNumber(), x2: this._parseNumber(), y2: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
                    return new window.SVGPathSegCurvetoCubicAbs(owningPathSegList, points.x, points.y, points.x1, points.y1, points.x2, points.y2);
                case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL:
                    var points = {x2: this._parseNumber(), y2: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
                    return new window.SVGPathSegCurvetoCubicSmoothRel(owningPathSegList, points.x, points.y, points.x2, points.y2);
                case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS:
                    var points = {x2: this._parseNumber(), y2: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
                    return new window.SVGPathSegCurvetoCubicSmoothAbs(owningPathSegList, points.x, points.y, points.x2, points.y2);
                case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL:
                    var points = {x1: this._parseNumber(), y1: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
                    return new window.SVGPathSegCurvetoQuadraticRel(owningPathSegList, points.x, points.y, points.x1, points.y1);
                case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS:
                    var points = {x1: this._parseNumber(), y1: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
                    return new window.SVGPathSegCurvetoQuadraticAbs(owningPathSegList, points.x, points.y, points.x1, points.y1);
                case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL:
                    return new window.SVGPathSegCurvetoQuadraticSmoothRel(owningPathSegList, this._parseNumber(), this._parseNumber());
                case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS:
                    return new window.SVGPathSegCurvetoQuadraticSmoothAbs(owningPathSegList, this._parseNumber(), this._parseNumber());
                case window.SVGPathSeg.PATHSEG_ARC_REL:
                    var points = {x1: this._parseNumber(), y1: this._parseNumber(), arcAngle: this._parseNumber(), arcLarge: this._parseArcFlag(), arcSweep: this._parseArcFlag(), x: this._parseNumber(), y: this._parseNumber()};
                    return new window.SVGPathSegArcRel(owningPathSegList, points.x, points.y, points.x1, points.y1, points.arcAngle, points.arcLarge, points.arcSweep);
                case window.SVGPathSeg.PATHSEG_ARC_ABS:
                    var points = {x1: this._parseNumber(), y1: this._parseNumber(), arcAngle: this._parseNumber(), arcLarge: this._parseArcFlag(), arcSweep: this._parseArcFlag(), x: this._parseNumber(), y: this._parseNumber()};
                    return new window.SVGPathSegArcAbs(owningPathSegList, points.x, points.y, points.x1, points.y1, points.arcAngle, points.arcLarge, points.arcSweep);
                default:
                    throw "Unknown path seg type."
                }
            }

            var builder = new Builder();
            var source = new Source(string);

            if (!source.initialCommandIsMoveTo())
                return [];
            while (source.hasMoreData()) {
                var pathSeg = source.parseSegment();
                if (!pathSeg)
                    return [];
                builder.appendSegment(pathSeg);
            }

            return builder.pathSegList;
        }
    }
}());

/dev/horse/0006/pathSerializer.js

//The MIT License (MIT)
//
//Copyright (c) 2015 Satoshi Fujiwara
//
//Permission is hereby granted, free of charge, to any person obtaining a copy
//of this software and associated documentation files (the "Software"), to deal
//in the Software without restriction, including without limitation the rights
//to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//copies of the Software, and to permit persons to whom the Software is
//furnished to do so, subject to the following conditions:
//
//The above copyright notice and this permission notice shall be included in
//all copies or substantial portions of the Software.
//
//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//THE SOFTWARE.

/// <reference path="http://cdnjs.cloudflare.com/ajax/libs/d3/3.5.2/d3.js" />
/// <reference path="http://cdnjs.cloudflare.com/ajax/libs/three.js/r70/three.js" />
/// <reference path="..\intellisense\q.intellisense.js" />

"use strict";

// Node.js で動作しているか
(function () {
  var isNode = (typeof process !== "undefined" && typeof require !== "undefined");
  // ブラウザ上(非Node.js)で動作しているか
  var isBrowser = !isNode
  // node-webkitで動作しているか
  var isNodeWebkit;
  try {
    isNodeWebkit = isNode ? (typeof require('nw.gui') !== "undefined") : false;
  } catch (e) {
    isNodeWebkit = false;
  }

  if ((isBrowser || isNodeWebkit) && !window['SF']) {
    window.SF = {};
  }

  function mapArray(array){
    return array.map(function(d){
      if('metadata' in d){
        return objArrays[d.metadata.type].factory(d);
      } else {
        return d;
      }
    }); 
  }

  var objArrays = {
    'Vector2': {
      factory: function (json) {
        var obj = json.object;
        return new THREE.Vector2(obj.x, obj.y);
      }
    },
    'Vector3': {
      factory: function (json) {
        var obj = json.object;
        return new THREE.Vector3(obj.x, obj.y, obj.z);
      }
    },
    'EllipseCurve': {
      factory: function (json) {
        var obj = json.object;
        return new THREE.EllipseCurve(obj.aX, obj.aY, obj.xRadius, obj.yRadius, obj.aStartAngle, obj.aEndAngle, obj.aClockwise);
      }
    },
    'ArcCurve': {
      factory: function (json) {
        var obj = json.object;
        return new THREE.ArcCurve(obj.aX, obj.aY, obj.xRadius, obj.aStartAngle, obj.aEndAngle, obj.aClockwise);
      }
    },
    'ClosedSplineCurve3': {
      factory: function (json) {
        var obj = json.object;
        if(obj['points']){
          var points = mapArray(obj.points);

          return new THREE.ClosedSplineCurve3(points);
        }
        return new THREE.ClosedSplineCurve3();
      }
    },
    'CubicBezierCurve': {
      factory: function (json) {
        var o = json.object;
        return new THREE.CubicBezierCurve(
          objArrays[o.v0.metadata.type].factory(o.v0),
          objArrays[o.v1.metadata.type].factory(o.v1),
          objArrays[o.v2.metadata.type].factory(o.v2),
          objArrays[o.v3.metadata.type].factory(o.v3)
          );
      }
    },
    'CubicBezierCurve3': {
      factory: function (json) {
        var o = json.object;
        return new THREE.CubicBezierCurve3(
          objArrays[o.v0.metadata.type].factory(o.v0),
          objArrays[o.v1.metadata.type].factory(o.v1),
          objArrays[o.v2.metadata.type].factory(o.v2),
          objArrays[o.v3.metadata.type].factory(o.v3)
          );
      }
    },
    'LineCurve': {
      factory: function (json) {
        var o = json.object;
        return new THREE.LineCurve(
          objArrays[o.v1.metadata.type].factory(o.v1),
          objArrays[o.v2.metadata.type].factory(o.v2)
          );
      }
    },
    'LineCurve3': {
      factory: function (json) {
        var o = json.object;
        return new THREE.LineCurve3(
          objArrays[o.v1.metadata.type].factory(o.v1),
          objArrays[o.v2.metadata.type].factory(o.v2)
          );
      }
    },
    'QuadraticBezierCurve': {
      factory: function (json) {
        var o = json.object;
        return new THREE.QuadraticBezierCurve(
          objArrays[o.v0.metadata.type].factory(o.v0),
          objArrays[o.v1.metadata.type].factory(o.v1),
          objArrays[o.v2.metadata.type].factory(o.v2)
          );
      }
    },
    'QuadraticBezierCurve3': {
      factory: function (json) {
        var o = json.object;
        return new THREE.QuadraticBezierCurve3(
          objArrays[o.v0.metadata.type].factory(o.v0),
          objArrays[o.v1.metadata.type].factory(o.v1),
          objArrays[o.v2.metadata.type].factory(o.v2)
          );
      }
    },
    'SplineCurve': {
      factory: function(json){
        var o = json.object;
        if(o['points']){
          var points = mapArray(o.points);
          return new THREE.SplineCurve(points);
        } else{
          return new THREE.SplineCurve(points);
        }
      }
    },
    'SplineCurve3': {
      factory: function(json){
        var o = json.object;
        if(o['points']){
          var points = mapArray(o.points);
          return new THREE.SplineCurve3(points);
        } else{
          return new THREE.SplineCurve3(points);
        }
      }
    },
    'CurvePath': {
      factory:function(json){
        var o = json.object;
        var instance = new THREE.CurvePath();
        if('curves' in o){
          instance.curves = mapArray(o.curves);
        }
        if('bends' in o){
          instance.bends = mapArray(o.bends);
        }
        instance.autoClose = o.autoClose;
        return instance;
      }
    },
    'Path': {
      factory:function(json){
        var o = json.object;
        var instance = new THREE.Path();
        if('curves' in o){
          instance.curves = mapArray(o.curves);
        }
        if('bends' in o){
          instance.bends = mapArray(o.bends);
        }
        if('actions' in o){
          instance.actions = mapArray(o.actions);
        }
        instance.autoClose = o.autoClose;
        return instance;
      }
    }
  }

  // 対象オブジェクトのプロトタイプにtoJSONメソッドを定義する
  for (var name in objArrays) {
    (function () {
      var name_ = name;
      THREE[name_].prototype.toJSON = function () {
        return toJSONBase(this, name_);
      };
    })();
  };

  function toJSONBase(obj, name) {
    var json = {
      "metadata": {
        "type": name,
      },
      "object": {}
    };
    for (var i in obj) {
      if (typeof obj[i] !== 'function') {
        json.object[i] = obj[i].toJSON ? obj[i].toJSON() : obj[i];
      }
    }
    return json;
  }

  SF.deserialize = function (json) {
    if (objArrays[json.metadata.type]) {
      return objArrays[json.metadata.type].factory(json);
    }
  }


})();

//(function () {
//  // EllipseCurve
//  var tobj = new THREE.EllipseCurve(1, 2, 3, 4, 5, 6, 7);
//  console.log(tobj);
//  var jsonData = JSON.stringify(tobj);
//  console.log(jsonData);
//  var tobj2 = SF.deserialize(JSON.parse(jsonData));
//  console.log(tobj2);

//  // ArcCurve 
//  tobj = new THREE.ArcCurve(1, 2, 3, 4, 5, 6);
//  console.log(tobj);
//  jsonData = JSON.stringify(tobj);
//  console.log(jsonData);
//  tobj2 = SF.deserialize(JSON.parse(jsonData));
//  console.log(tobj2);

//  // CubicBezierCurve
//  tobj = new THREE.CubicBezierCurve(new THREE.Vector2(0, 0), new THREE.Vector2(1, 1), new THREE.Vector2(2, 2), new THREE.Vector2(3, 3));
//  console.log(tobj);
//  jsonData = JSON.stringify(tobj);
//  console.log(jsonData);
//  tobj2 = SF.deserialize(JSON.parse(jsonData));
//  console.log(tobj2);

//  // CubicBezierCurve3
//  tobj = new THREE.CubicBezierCurve(new THREE.Vector3(0, 0, 0), new THREE.Vector3(1, 1, 1), new THREE.Vector3(2, 2, 2), new THREE.Vector3(3, 3, 3));
//  console.log(tobj);
//  jsonData = JSON.stringify(tobj);
//  console.log(jsonData);
//  tobj2 = SF.deserialize(JSON.parse(jsonData));
//  console.log(tobj2);

//  // LineCurve
//  tobj = new THREE.LineCurve(new THREE.Vector2(0, 0), new THREE.Vector2(1, 1));
//  console.log(tobj);
//  jsonData = JSON.stringify(tobj);
//  console.log(jsonData);
//  tobj2 = SF.deserialize(JSON.parse(jsonData));
//  console.log(tobj2);

//  // LineCurve
//  tobj = new THREE.LineCurve3(new THREE.Vector3(0, 0), new THREE.Vector3(1, 1));
//  console.log(tobj);
//  jsonData = JSON.stringify(tobj);
//  console.log(jsonData);
//  tobj2 = SF.deserialize(JSON.parse(jsonData));
//  console.log(tobj2);

//  // QuadraticBezierCurve
//  tobj = new THREE.QuadraticBezierCurve(new THREE.Vector2(0, 0), new THREE.Vector2(1, 1),new THREE.Vector2(2,2));
//  console.log(tobj);
//  jsonData = JSON.stringify(tobj);
//  console.log(jsonData);
//  tobj2 = SF.deserialize(JSON.parse(jsonData));
//  console.log(tobj2);

//  // QuadraticBezierCurve3
//  tobj = new THREE.QuadraticBezierCurve3(new THREE.Vector3(0, 0,0), new THREE.Vector3(1, 1,1),new THREE.Vector3(2,2,2));
//  console.log(tobj);
//  jsonData = JSON.stringify(tobj);
//  console.log(jsonData);
//  tobj2 = SF.deserialize(JSON.parse(jsonData));
//  console.log(tobj2);

//})();

/dev/horse/0006/README.md

## three.jsのPathのシリアライズ(2)

エドワード・マイブリッジの「Horse in motion」をInkscapeでトレースし、各馬をセル化したものをthree.jsのshapeに変換し表示しています。

今回はシリアライズ・デシリアライズのコードを最適化してみました。
[http://bl.ocks.org/sfpgmr/cee0c48acb0854e2055c#pathSerializer.js](http://bl.ocks.org/sfpgmr/cee0c48acb0854e2055c#pathSerializer.js)

下記のURLから動くデモが見れます。Windows 10 Tech Preview 9926 のIE11では動作しませんでした。ひょっとするとIE11ではそもそも動作しないのかもしれません。原因は不明ですが。。

[http://bl.ocks.org/sfpgmr/cee0c48acb0854e2055c](http://bl.ocks.org/sfpgmr/cee0c48acb0854e2055c)

/dev/horse/0006/thumbnail.png