starting svg export

dependencies/SVGRenderer.js

+/**
+ * @author mrdoob / http://mrdoob.com/
+ */
+
+THREE.SVGObject = function ( node ) {
+
+	THREE.Object3D.call( this );
+
+	this.node = node;
+
+};
+
+THREE.SVGObject.prototype = Object.create( THREE.Object3D.prototype );
+THREE.SVGObject.prototype.constructor = THREE.SVGObject;
+
+THREE.SVGRenderer = function () {
+
+	console.log( 'THREE.SVGRenderer', THREE.REVISION );
+
+	var _this = this,
+	_renderData, _elements, _lights,
+	_projector = new THREE.Projector(),
+	_svg = document.createElementNS( 'http://www.w3.org/2000/svg', 'svg' ),
+	_svgWidth, _svgHeight, _svgWidthHalf, _svgHeightHalf,
+
+	_v1, _v2, _v3, _v4,
+
+	_clipBox = new THREE.Box2(),
+	_elemBox = new THREE.Box2(),
+
+	_color = new THREE.Color(),
+	_diffuseColor = new THREE.Color(),
+	_ambientLight = new THREE.Color(),
+	_directionalLights = new THREE.Color(),
+	_pointLights = new THREE.Color(),
+	_clearColor = new THREE.Color(),
+	_clearAlpha = 1,
+
+	_vector3 = new THREE.Vector3(), // Needed for PointLight
+	_centroid = new THREE.Vector3(),
+	_normal = new THREE.Vector3(),
+	_normalViewMatrix = new THREE.Matrix3(),
+
+	_viewMatrix = new THREE.Matrix4(),
+	_viewProjectionMatrix = new THREE.Matrix4(),
+
+	_svgPathPool = [], _svgLinePool = [], _svgRectPool = [],
+	_svgNode, _pathCount = 0, _lineCount = 0, _rectCount = 0,
+	_quality = 1;
+
+	this.domElement = _svg;
+
+	this.autoClear = true;
+	this.sortObjects = true;
+	this.sortElements = true;
+
+	this.info = {
+
+		render: {
+
+			vertices: 0,
+			faces: 0
+
+		}
+
+	};
+
+	this.setQuality = function( quality ) {
+
+		switch ( quality ) {
+
+			case "high": _quality = 1; break;
+			case "low": _quality = 0; break;
+
+		}
+
+	};
+
+	// WebGLRenderer compatibility
+
+	this.supportsVertexTextures = function () {};
+	this.setFaceCulling = function () {};
+
+	this.setClearColor = function ( color, alpha ) {
+
+		_clearColor.set( color );
+		_clearAlpha = alpha !== undefined ? alpha : 1;
+
+	};
+
+	this.setPixelRatio = function () {};
+
+	this.setSize = function( width, height ) {
+
+		_svgWidth = width; _svgHeight = height;
+		_svgWidthHalf = _svgWidth / 2; _svgHeightHalf = _svgHeight / 2;
+
+		_svg.setAttribute( 'viewBox', ( - _svgWidthHalf ) + ' ' + ( - _svgHeightHalf ) + ' ' + _svgWidth + ' ' + _svgHeight );
+		_svg.setAttribute( 'width', _svgWidth );
+		_svg.setAttribute( 'height', _svgHeight );
+
+		_clipBox.min.set( - _svgWidthHalf, - _svgHeightHalf );
+		_clipBox.max.set( _svgWidthHalf, _svgHeightHalf );
+
+	};
+
+	function removeChildNodes() {
+
+		_pathCount = 0;
+		_lineCount = 0;
+		_rectCount = 0;
+
+		while ( _svg.childNodes.length > 0 ) {
+
+			_svg.removeChild( _svg.childNodes[ 0 ] );
+
+		}
+
+	}
+
+	this.clear = function () {
+
+		removeChildNodes();
+		_svg.style.backgroundColor = 'rgba(' + Math.floor( _clearColor.r * 255 ) + ',' + Math.floor( _clearColor.g * 255 ) + ',' + Math.floor( _clearColor.b * 255 ) + ',' + _clearAlpha + ')';
+
+	};
+
+	this.render = function ( scene, camera ) {
+
+		if ( camera instanceof THREE.Camera === false ) {
+
+			console.error( 'THREE.SVGRenderer.render: camera is not an instance of THREE.Camera.' );
+			return;
+
+		}
+
+		var background = scene.background;
+
+		if ( background && background.isColor ) {
+
+			removeChildNodes();
+			_svg.style.backgroundColor = 'rgb(' + Math.floor( background.r * 255 ) + ',' + Math.floor( background.g * 255 ) + ',' + Math.floor( background.b * 255 ) + ')';
+
+		} else if ( this.autoClear === true ) {
+
+			this.clear();
+
+		}
+
+		_this.info.render.vertices = 0;
+		_this.info.render.faces = 0;
+
+		_viewMatrix.copy( camera.matrixWorldInverse.getInverse( camera.matrixWorld ) );
+		_viewProjectionMatrix.multiplyMatrices( camera.projectionMatrix, _viewMatrix );
+
+		_renderData = _projector.projectScene( scene, camera, this.sortObjects, this.sortElements );
+		_elements = _renderData.elements;
+		_lights = _renderData.lights;
+
+		_normalViewMatrix.getNormalMatrix( camera.matrixWorldInverse );
+
+		calculateLights( _lights );
+
+		for ( var e = 0, el = _elements.length; e < el; e ++ ) {
+
+			var element = _elements[ e ];
+			var material = element.material;
+
+			if ( material === undefined || material.opacity === 0 ) continue;
+
+			_elemBox.makeEmpty();
+
+			if ( element instanceof THREE.RenderableSprite ) {
+
+				_v1 = element;
+				_v1.x *= _svgWidthHalf; _v1.y *= - _svgHeightHalf;
+
+				renderSprite( _v1, element, material );
+
+			} else if ( element instanceof THREE.RenderableLine ) {
+
+				_v1 = element.v1; _v2 = element.v2;
+
+				_v1.positionScreen.x *= _svgWidthHalf; _v1.positionScreen.y *= - _svgHeightHalf;
+				_v2.positionScreen.x *= _svgWidthHalf; _v2.positionScreen.y *= - _svgHeightHalf;
+
+				_elemBox.setFromPoints( [ _v1.positionScreen, _v2.positionScreen ] );
+
+				if ( _clipBox.intersectsBox( _elemBox ) === true ) {
+
+					renderLine( _v1, _v2, element, material );
+
+				}
+
+			} else if ( element instanceof THREE.RenderableFace ) {
+
+				_v1 = element.v1; _v2 = element.v2; _v3 = element.v3;
+
+				if ( _v1.positionScreen.z < - 1 || _v1.positionScreen.z > 1 ) continue;
+				if ( _v2.positionScreen.z < - 1 || _v2.positionScreen.z > 1 ) continue;
+				if ( _v3.positionScreen.z < - 1 || _v3.positionScreen.z > 1 ) continue;
+
+				_v1.positionScreen.x *= _svgWidthHalf; _v1.positionScreen.y *= - _svgHeightHalf;
+				_v2.positionScreen.x *= _svgWidthHalf; _v2.positionScreen.y *= - _svgHeightHalf;
+				_v3.positionScreen.x *= _svgWidthHalf; _v3.positionScreen.y *= - _svgHeightHalf;
+
+				_elemBox.setFromPoints( [
+					_v1.positionScreen,
+					_v2.positionScreen,
+					_v3.positionScreen
+				] );
+
+				if ( _clipBox.intersectsBox( _elemBox ) === true ) {
+
+					renderFace3( _v1, _v2, _v3, element, material );
+
+				}
+
+			}
+
+		}
+
+		scene.traverseVisible( function ( object ) {
+
+			 if ( object instanceof THREE.SVGObject ) {
+
+				_vector3.setFromMatrixPosition( object.matrixWorld );
+				_vector3.applyMatrix4( _viewProjectionMatrix );
+
+				var x =   _vector3.x * _svgWidthHalf;
+				var y = - _vector3.y * _svgHeightHalf;
+
+				var node = object.node;
+				node.setAttribute( 'transform', 'translate(' + x + ',' + y + ')' );
+
+				_svg.appendChild( node );
+
+			}
+
+		} );
+
+	};
+
+	function calculateLights( lights ) {
+
+		_ambientLight.setRGB( 0, 0, 0 );
+		_directionalLights.setRGB( 0, 0, 0 );
+		_pointLights.setRGB( 0, 0, 0 );
+
+		for ( var l = 0, ll = lights.length; l < ll; l ++ ) {
+
+			var light = lights[ l ];
+			var lightColor = light.color;
+
+			if ( light instanceof THREE.AmbientLight ) {
+
+				_ambientLight.r += lightColor.r;
+				_ambientLight.g += lightColor.g;
+				_ambientLight.b += lightColor.b;
+
+			} else if ( light instanceof THREE.DirectionalLight ) {
+
+				_directionalLights.r += lightColor.r;
+				_directionalLights.g += lightColor.g;
+				_directionalLights.b += lightColor.b;
+
+			} else if ( light instanceof THREE.PointLight ) {
+
+				_pointLights.r += lightColor.r;
+				_pointLights.g += lightColor.g;
+				_pointLights.b += lightColor.b;
+
+			}
+
+		}
+
+	}
+
+	function calculateLight( lights, position, normal, color ) {
+
+		for ( var l = 0, ll = lights.length; l < ll; l ++ ) {
+
+			var light = lights[ l ];
+			var lightColor = light.color;
+
+			if ( light instanceof THREE.DirectionalLight ) {
+
+				var lightPosition = _vector3.setFromMatrixPosition( light.matrixWorld ).normalize();
+
+				var amount = normal.dot( lightPosition );
+
+				if ( amount <= 0 ) continue;
+
+				amount *= light.intensity;
+
+				color.r += lightColor.r * amount;
+				color.g += lightColor.g * amount;
+				color.b += lightColor.b * amount;
+
+			} else if ( light instanceof THREE.PointLight ) {
+
+				var lightPosition = _vector3.setFromMatrixPosition( light.matrixWorld );
+
+				var amount = normal.dot( _vector3.subVectors( lightPosition, position ).normalize() );
+
+				if ( amount <= 0 ) continue;
+
+				amount *= light.distance == 0 ? 1 : 1 - Math.min( position.distanceTo( lightPosition ) / light.distance, 1 );
+
+				if ( amount == 0 ) continue;
+
+				amount *= light.intensity;
+
+				color.r += lightColor.r * amount;
+				color.g += lightColor.g * amount;
+				color.b += lightColor.b * amount;
+
+			}
+
+		}
+
+	}
+
+	function renderSprite( v1, element, material ) {
+
+		var scaleX = element.scale.x * _svgWidthHalf;
+		var scaleY = element.scale.y * _svgHeightHalf;
+
+		_svgNode = getRectNode( _rectCount ++ );
+
+		_svgNode.setAttribute( 'x', v1.x - ( scaleX * 0.5 ) );
+		_svgNode.setAttribute( 'y', v1.y - ( scaleY * 0.5 ) );
+		_svgNode.setAttribute( 'width', scaleX );
+		_svgNode.setAttribute( 'height', scaleY );
+
+		if ( material instanceof THREE.SpriteMaterial ) {
+
+			_svgNode.setAttribute( 'style', 'fill: ' + material.color.getStyle() );
+
+		}
+
+		_svg.appendChild( _svgNode );
+
+	}
+
+	function renderLine( v1, v2, element, material ) {
+
+		_svgNode = getLineNode( _lineCount ++ );
+
+		_svgNode.setAttribute( 'x1', v1.positionScreen.x );
+		_svgNode.setAttribute( 'y1', v1.positionScreen.y );
+		_svgNode.setAttribute( 'x2', v2.positionScreen.x );
+		_svgNode.setAttribute( 'y2', v2.positionScreen.y );
+
+		if ( material instanceof THREE.LineBasicMaterial ) {
+
+			_svgNode.setAttribute( 'style', 'fill: none; stroke: ' + material.color.getStyle() + '; stroke-width: ' + material.linewidth + '; stroke-opacity: ' + material.opacity + '; stroke-linecap: ' + material.linecap + '; stroke-linejoin: ' + material.linejoin );
+
+			_svg.appendChild( _svgNode );
+
+		}
+
+	}
+
+	function renderFace3( v1, v2, v3, element, material ) {
+
+		_this.info.render.vertices += 3;
+		_this.info.render.faces ++;
+
+		_svgNode = getPathNode( _pathCount ++ );
+		_svgNode.setAttribute( 'd', 'M ' + v1.positionScreen.x + ' ' + v1.positionScreen.y + ' L ' + v2.positionScreen.x + ' ' + v2.positionScreen.y + ' L ' + v3.positionScreen.x + ',' + v3.positionScreen.y + 'z' );
+
+		if ( material instanceof THREE.MeshBasicMaterial ) {
+
+			_color.copy( material.color );
+
+			if ( material.vertexColors === THREE.FaceColors ) {
+
+				_color.multiply( element.color );
+
+			}
+
+		} else if ( material instanceof THREE.MeshLambertMaterial || material instanceof THREE.MeshPhongMaterial ) {
+
+			_diffuseColor.copy( material.color );
+
+			if ( material.vertexColors === THREE.FaceColors ) {
+
+				_diffuseColor.multiply( element.color );
+
+			}
+
+			_color.copy( _ambientLight );
+
+			_centroid.copy( v1.positionWorld ).add( v2.positionWorld ).add( v3.positionWorld ).divideScalar( 3 );
+
+			calculateLight( _lights, _centroid, element.normalModel, _color );
+
+			_color.multiply( _diffuseColor ).add( material.emissive );
+
+		} else if ( material instanceof THREE.MeshNormalMaterial ) {
+
+			_normal.copy( element.normalModel ).applyMatrix3( _normalViewMatrix );
+
+			_color.setRGB( _normal.x, _normal.y, _normal.z ).multiplyScalar( 0.5 ).addScalar( 0.5 );
+
+		}
+
+		if ( material.wireframe ) {
+
+			_svgNode.setAttribute( 'style', 'fill: none; stroke: ' + _color.getStyle() + '; stroke-width: ' + material.wireframeLinewidth + '; stroke-opacity: ' + material.opacity + '; stroke-linecap: ' + material.wireframeLinecap + '; stroke-linejoin: ' + material.wireframeLinejoin );
+
+		} else {
+
+			_svgNode.setAttribute( 'style', 'fill: ' + _color.getStyle() + '; fill-opacity: ' + material.opacity );
+
+		}
+
+		_svg.appendChild( _svgNode );
+
+	}
+
+	function getLineNode( id ) {
+
+		if ( _svgLinePool[ id ] == null ) {
+
+			_svgLinePool[ id ] = document.createElementNS( 'http://www.w3.org/2000/svg', 'line' );
+
+			if ( _quality == 0 ) {
+
+				_svgLinePool[ id ].setAttribute( 'shape-rendering', 'crispEdges' ); //optimizeSpeed
+
+			}
+
+			return _svgLinePool[ id ];
+
+		}
+
+		return _svgLinePool[ id ];
+
+	}
+
+	function getPathNode( id ) {
+
+		if ( _svgPathPool[ id ] == null ) {
+
+			_svgPathPool[ id ] = document.createElementNS( 'http://www.w3.org/2000/svg', 'path' );
+
+			if ( _quality == 0 ) {
+
+				_svgPathPool[ id ].setAttribute( 'shape-rendering', 'crispEdges' ); //optimizeSpeed
+
+			}
+
+			return _svgPathPool[ id ];
+
+		}
+
+		return _svgPathPool[ id ];
+
+	}
+
+	function getRectNode( id ) {
+
+		if ( _svgRectPool[ id ] == null ) {
+
+			_svgRectPool[ id ] = document.createElementNS( 'http://www.w3.org/2000/svg', 'rect' );
+
+			if ( _quality == 0 ) {
+
+				_svgRectPool[ id ].setAttribute( 'shape-rendering', 'crispEdges' ); //optimizeSpeed
+
+			}
+
+			return _svgRectPool[ id ];
+
+		}
+
+		return _svgRectPool[ id ];
+
+	}
+
+};

index.html

@@ -343,6 +343,8 @@
     <script type="text/javascript" src="dependencies/three.js"></script>
     <script type="text/javascript" src="dependencies/binary_stl_writer.js"></script>
     <script type="text/javascript" src="dependencies/OrthographicTrackballControls.js"></script>
+    <script type="text/javascript" src="dependencies/Projector.js"></script>
+    <script type="text/javascript" src="dependencies/SVGRenderer.js"></script>
     <script type="text/javascript" src="dependencies/underscore-min.js"></script>
     <script type="text/javascript" src="dependencies/FileSaver.min.js"></script>
     <script type="text/javascript" src="dependencies/SVGLoader.js"></script>
@@ -372,6 +374,8 @@
     <script type="text/javascript" src="js/dynamic/dynamicSolver.js"></script>
     <script type="text/javascript" src="js/pattern.js"></script>
     <script type="text/javascript" src="js/saveSTL.js"></script>
+    <script type="text/javascript" src="js/importer.js"></script>
+
 
     <script type="text/javascript" src="js/main.js"></script>
 </head>
@@ -405,8 +409,11 @@
                     </li>
                     <li class="divider"></li>
                     <li><a class="loadFile" href="#">Import... (SVG / FOLD / txt)</a></li>
-                    <!--<li><a id="saveSVG" href="#">Save Pattern as SVG...</a></li>-->
+
+                    <li class="divider"></li>
                     <li><a id="exportSTL" href="#">Save Simulation as STL...</a></li>
+                    <!--<li><a id="saveSVG" href="#">Save Pattern as SVG...</a></li>-->
+                    <li><a id="saveSVGScreenshot" href="#">Save SVG screenshot</a></li>
                 </ul>
             </li>
             <li><a id="navPattern" href="#">Pattern</a></li>

js/controls.js

@@ -104,276 +104,14 @@ function initControls(globals){
     setLink(".demo", function(e){
         var url = $(e.target).data("url");
         if (url) {
-            var extension = url.split(".");
-            var name = extension[extension.length-2].split("/");
-            name = name[name.length-1];
-            extension = extension[extension.length-1];
-            // globals.setCreasePercent(0);
-            if (extension == "txt"){
-                $.getJSON( "assets/"+url, function( json ) {
-                    globals.filename = name;
-                    globals.extension = extension;
-                    parseTXTjson(json);
-                });
-
-            } else {
-                globals.filename = name;
-                globals.extension = extension;
-                globals.pattern.loadSVG("assets/" + url);
-            }
+            globals.importer.importDemoFile(url);
         }
     });
 
-    function warnUnableToLoad(){
-        globals.warn("Unable to load file.");
-    }
-
-    $("#fileSelector").change(function(e) {
-        var files = e.target.files; // FileList object
-        if (files.length < 1) {
-            return;
-        }
-
-        var file = files[0];
-        var name = file.name;
-        var extension = name.split(".");
-        extension = extension[extension.length - 1];
-        var reader = new FileReader();
-
-        if (extension == "txt") {
-            reader.onload = function () {
-                return function (e) {
-                    if (!reader.result) {
-                        warnUnableToLoad();
-                        return;
-                    }
-                    globals.filename = name;
-                    globals.extension = extension;
-                    // globals.setCreasePercent(0);
-                    parseTXTjson(JSON.parse(reader.result));
-                }
-            }(file);
-            reader.readAsText(file);
-        } else if (extension == "svg") {
-            reader.onload = function () {
-                return function (e) {
-                    if (!reader.result) {
-                        warnUnableToLoad();
-                        return;
-                    }
-                    globals.filename = name;
-                    globals.extension = extension;
-                    // globals.setCreasePercent(0);
-                    globals.pattern.loadSVG(reader.result);
-                }
-            }(file);
-            reader.readAsDataURL(file);
-        } else if (extension == "fold"){
-            reader.onload = function () {
-                return function (e) {
-                    if (!reader.result) {
-                        warnUnableToLoad();
-                        return;
-                    }
-                    globals.filename = name;
-                    globals.extension = extension;
-                    if (reader.result && reader.result.edges_foldAngles){
-                        parseFoldJSON(JSON.parse(reader.result));
-                        return;
-                    }
-                    $("#importFoldModal").modal("show");
-                    $('#importFoldModal').on('hidden.bs.modal', function () {
-                        if (globals.foldUseAngles) globals.setCreasePercent(1);
-                        parseFoldJSON(JSON.parse(reader.result));
-                    });
-
-                }
-            }(file);
-            reader.readAsText(file);