if(!Array.forEach){Array.forEach=function(array,fun,thisp){var len=array.length;for(var i=0;ix3dom.debug.maxLinesToLog){return;} var node=document.createElement("p");node.style.margin=0;node.innerHTML=logType+": "+msg;x3dom.debug.logContainer.insertBefore(node,x3dom.debug.logContainer.firstChild);if(x3dom.debug.isFirebugAvailable){switch(logType){case x3dom.debug.INFO:console.info(msg);break;case x3dom.debug.WARNING:console.warn(msg);break;case x3dom.debug.ERROR:console.error(msg);break;case x3dom.debug.EXCEPTION:console.debug(msg);break;default:break;}} x3dom.debug.numLinesLogged++;},logInfo:function(msg){x3dom.debug.doLog(msg,x3dom.debug.INFO);},logWarning:function(msg){x3dom.debug.doLog(msg,x3dom.debug.WARNING);},logError:function(msg){x3dom.debug.doLog(msg,x3dom.debug.ERROR);},logException:function(msg){x3dom.debug.doLog(msg,x3dom.debug.EXCEPTION);},assert:function(c,msg){if(!c){x3dom.debug.doLog("Assertion failed in "+x3dom.debug.assert.caller.name+': '+msg,x3dom.debug.WARNING);}}};x3dom.debug.setup();x3dom.gfx_webgl=(function(){function Context(ctx3d,canvas,name){this.ctx3d=ctx3d;this.canvas=canvas;this.name=name;} Context.prototype.getName=function(){return this.name;};function setupContext(canvas){x3dom.debug.logInfo("setupContext: canvas="+canvas);var ctx=null;try{ctx=canvas.getContext('moz-webgl');if(ctx){return new Context(ctx,canvas,'moz-webgl');}}catch(ef){} try{ctx=canvas.getContext('webkit-3d');if(ctx){return new Context(ctx,canvas,'webkit-3d');}}catch(es){}} var g_shaders={};g_shaders['vs-x3d-textured']={type:"vertex",data:"attribute vec3 position;"+"attribute vec3 normal;"+"attribute vec2 texcoord;"+"varying vec3 fragNormal;"+"varying vec3 fragLightVector;"+"varying vec3 fragEyeVector;"+"varying vec2 fragTexCoord;"+"uniform mat4 modelViewProjectionMatrix;"+"uniform mat4 modelViewMatrix;"+"uniform vec3 lightDirection;"+"uniform vec3 eyePosition;"+""+"void main(void) {"+" gl_Position = modelViewProjectionMatrix * vec4(position, 1.0);"+" fragNormal = (modelViewMatrix * vec4(normal, 0.0)).xyz;"+" fragLightVector = -lightDirection;"+" fragEyeVector = eyePosition - (modelViewMatrix * vec4(position, 1.0)).xyz;"+" fragTexCoord = texcoord;"+"}"};g_shaders['vs-x3d-textured-tt']={type:"vertex",data:"attribute vec3 position;"+"attribute vec3 normal;"+"attribute vec2 texcoord;"+"varying vec3 fragNormal;"+"varying vec3 fragLightVector;"+"varying vec3 fragEyeVector;"+"varying vec2 fragTexCoord;"+"uniform mat4 texTrafoMatrix;"+"uniform mat4 modelViewProjectionMatrix;"+"uniform mat4 modelViewMatrix;"+"uniform vec3 lightDirection;"+"uniform vec3 eyePosition;"+""+"void main(void) {"+" gl_Position = modelViewProjectionMatrix * vec4(position, 1.0);"+" fragNormal = (modelViewMatrix * vec4(normal, 0.0)).xyz;"+" fragLightVector = -lightDirection;"+" fragEyeVector = eyePosition - (modelViewMatrix * vec4(position, 1.0)).xyz;"+" fragTexCoord = (texTrafoMatrix * vec4(texcoord, 1.0, 1.0)).xy;"+"}"};g_shaders['fs-x3d-textured']={type:"fragment",data:"uniform float ambientIntensity;"+"uniform vec3 diffuseColor;"+"uniform vec3 emissiveColor;"+"uniform float shininess;"+"uniform vec3 specularColor;"+"uniform float alpha;"+"uniform float lightOn;"+"uniform sampler2D tex;"+""+"varying vec3 fragNormal;"+"varying vec3 fragLightVector;"+"varying vec3 fragEyeVector;"+"varying vec2 fragTexCoord;"+""+"void main(void) {"+" vec3 normal = normalize(fragNormal);"+" vec3 light = normalize(fragLightVector);"+" vec3 eye = normalize(fragEyeVector);"+" vec2 texCoord = vec2(fragTexCoord.x,1.0-fragTexCoord.y);"+" float diffuse = max(0.0, dot(normal, light)) * lightOn;"+" diffuse += max(0.0, dot(normal, eye));"+" float specular = pow(max(0.0, dot(normal, normalize(light+eye))), shininess*128.0) * lightOn;"+" specular += pow(max(0.0, dot(normal, normalize(eye))), shininess*128.0);"+" vec3 rgb = emissiveColor + diffuse*texture2D(tex, texCoord).rgb + specular*specularColor;"+" rgb = clamp(rgb, 0.0, 1.0);"+" gl_FragColor = vec4(rgb, texture2D(tex, texCoord).a);"+"}"};g_shaders['vs-x3d-untextured']={type:"vertex",data:"attribute vec3 position;"+"attribute vec3 normal;"+"varying vec3 fragNormal;"+"varying vec3 fragLightVector;"+"varying vec3 fragEyeVector;"+"uniform mat4 modelViewProjectionMatrix;"+"uniform mat4 modelViewMatrix;"+"uniform vec3 lightDirection;"+"uniform vec3 eyePosition;"+""+"void main(void) {"+" gl_Position = modelViewProjectionMatrix * vec4(position, 1.0);"+" fragNormal = (modelViewMatrix * vec4(normal, 0.0)).xyz;"+" fragLightVector = -lightDirection;"+" fragEyeVector = eyePosition - (modelViewMatrix * vec4(position, 1.0)).xyz;"+"}"};g_shaders['fs-x3d-untextured']={type:"fragment",data:"uniform float ambientIntensity;"+"uniform vec3 diffuseColor;"+"uniform vec3 emissiveColor;"+"uniform float shininess;"+"uniform vec3 specularColor;"+"uniform float alpha;"+"uniform float lightOn;"+""+"varying vec3 fragNormal;"+"varying vec3 fragLightVector;"+"varying vec3 fragEyeVector;"+""+"void main(void) {"+" vec3 normal = normalize(fragNormal);"+" vec3 light = normalize(fragLightVector);"+" vec3 eye = normalize(fragEyeVector);"+" float diffuse = max(0.0, dot(normal, light)) * lightOn;"+" diffuse += max(0.0, dot(normal, eye));"+" float specular = pow(max(0.0, dot(normal, normalize(light+eye))), shininess*128.0) * lightOn;"+" specular += pow(max(0.0, dot(normal, normalize(eye))), shininess*128.0);"+" vec3 rgb = emissiveColor + diffuse*diffuseColor + specular*specularColor;"+" rgb = clamp(rgb, 0.0, 1.0);"+" gl_FragColor = vec4(rgb, alpha);"+"}"};g_shaders['vs-x3d-vertexcolor']={type:"vertex",data:"attribute vec3 position;"+"attribute vec3 normal;"+"attribute vec3 color;"+"varying vec3 fragNormal;"+"varying vec3 fragColor;"+"varying vec3 fragLightVector;"+"varying vec3 fragEyeVector;"+"uniform mat4 modelViewProjectionMatrix;"+"uniform mat4 modelViewMatrix;"+"uniform vec3 lightDirection;"+"uniform vec3 eyePosition;"+""+"void main(void) {"+" gl_Position = modelViewProjectionMatrix * vec4(position, 1.0);"+" fragNormal = (modelViewMatrix * vec4(normal, 0.0)).xyz;"+" fragLightVector = -lightDirection;"+" fragColor = color;"+" fragEyeVector = eyePosition - (modelViewMatrix * vec4(position, 1.0)).xyz;"+"}"};g_shaders['fs-x3d-vertexcolor']={type:"fragment",data:"uniform float ambientIntensity;"+"uniform vec3 diffuseColor;"+"uniform vec3 emissiveColor;"+"uniform float shininess;"+"uniform vec3 specularColor;"+"uniform float alpha;"+"uniform float lightOn;"+""+"varying vec3 fragNormal;"+"varying vec3 fragColor;"+"varying vec3 fragLightVector;"+"varying vec3 fragEyeVector;"+""+"void main(void) {"+" vec3 normal = normalize(fragNormal);"+" vec3 light = normalize(fragLightVector);"+" vec3 eye = normalize(fragEyeVector);"+" float diffuse = max(0.0, dot(normal, light)) * lightOn;"+" diffuse += max(0.0, dot(normal, eye));"+" float specular = pow(max(0.0, dot(normal, normalize(light+eye))), shininess*128.0) * lightOn;"+" specular += pow(max(0.0, dot(normal, normalize(eye))), shininess*128.0);"+" vec3 rgb = emissiveColor + diffuse*fragColor + specular*specularColor;"+" rgb = clamp(rgb, 0.0, 1.0);"+" gl_FragColor = vec4(rgb, alpha);"+"}"};g_shaders['fs-x3d-shownormal']={type:"fragment",data:"uniform float ambientIntensity;"+"uniform vec3 diffuseColor;"+"uniform vec3 emissiveColor;"+"uniform float shininess;"+"uniform vec3 specularColor;"+"uniform float alpha;"+"uniform float lightOn;"+""+"varying vec3 fragNormal;"+"varying vec3 fragLightVector;"+"varying vec3 fragEyeVector;"+"varying vec2 fragTexCoord;"+""+"void main(void) {"+" vec3 normal = normalize(fragNormal);"+" gl_FragColor = vec4((normal+1.0)/2.0, 1.0);"+"}"};g_shaders['vs-x3d-default']={type:"vertex",data:"attribute vec3 position;"+"uniform mat4 modelViewProjectionMatrix;"+"void main(void) {"+" gl_Position = modelViewProjectionMatrix * vec4(position, 1.0);"+"}"};g_shaders['fs-x3d-default']={type:"fragment",data:"uniform vec3 diffuseColor;"+"uniform float alpha;"+"uniform float lightOn;"+"void main(void) {"+" gl_FragColor = vec4(diffuseColor, alpha);"+"}"};function getDefaultShaderProgram(gl) {var prog=gl.createProgram();var vs=gl.createShader(gl.VERTEX_SHADER);var fs=gl.createShader(gl.FRAGMENT_SHADER);gl.shaderSource(vs,g_shaders['vs-x3d-default'].data);gl.shaderSource(fs,g_shaders['fs-x3d-default'].data);gl.compileShader(vs);gl.compileShader(fs);gl.attachShader(prog,vs);gl.attachShader(prog,fs);gl.linkProgram(prog);var msg=gl.getProgramInfoLog(prog);if(msg){x3dom.debug.logError(msg);} return wrapShaderProgram(gl,prog);} function getShaderProgram(gl,ids) {var shader=[];for(var id=0;id<2;id++) {if(!g_shaders[ids[id]]) {x3dom.debug.logError('Cannot find shader '+ids[id]);return;} if(g_shaders[ids[id]].type=='vertex') {shader[id]=gl.createShader(gl.VERTEX_SHADER);} else if(g_shaders[ids[id]].type=='fragment') {shader[id]=gl.createShader(gl.FRAGMENT_SHADER);} else {x3dom.debug.logError('Invalid shader type '+g_shaders[id].type);return;} gl.shaderSource(shader[id],g_shaders[ids[id]].data);gl.compileShader(shader[id]);} var prog=gl.createProgram();gl.attachShader(prog,shader[0]);gl.attachShader(prog,shader[1]);gl.linkProgram(prog);var msg=gl.getProgramInfoLog(prog);if(msg){x3dom.debug.logError(msg);} return wrapShaderProgram(gl,prog);} function wrapShaderProgram(gl,sp) {var shader={};shader.bind=function(){gl.useProgram(sp);};var i=0,ok=true;var loc=null,obj=null;for(i=0;ok;++i){try{obj=gl.getActiveUniform(sp,i);} catch(eu){} if(gl.getError()!==0){break;} loc=gl.getUniformLocation(sp,obj.name);switch(obj.type){case gl.SAMPLER_2D:shader.__defineSetter__(obj.name,(function(loc){return function(val){gl.uniform1i(loc,val);};})(loc));break;case gl.SAMPLER_CUBE:shader.__defineSetter__(obj.name,(function(loc){return function(val){gl.uniform1i(loc,val);};})(loc));break;case gl.BOOL:shader.__defineSetter__(obj.name,(function(loc){return function(val){gl.uniform1i(loc,val);};})(loc));break;case gl.FLOAT:shader.__defineSetter__(obj.name,(function(loc){return function(val){gl.uniform1f(loc,val);};})(loc));break;case gl.FLOAT_VEC2:shader.__defineSetter__(obj.name,(function(loc){return function(val){gl.uniform2f(loc,val[0],val[1]);};})(loc));break;case gl.FLOAT_VEC3:shader.__defineSetter__(obj.name,(function(loc){return function(val){gl.uniform3f(loc,val[0],val[1],val[2]);};})(loc));break;case gl.FLOAT_VEC4:shader.__defineSetter__(obj.name,(function(loc){return function(val){gl.uniform4f(loc,val[0],val[1],val[2],val[3]);};})(loc));break;case gl.FLOAT_MAT2:shader.__defineSetter__(obj.name,(function(loc){return function(val){gl.uniformMatrix2fv(loc,false,new CanvasFloatArray(val));};})(loc));break;case gl.FLOAT_MAT3:shader.__defineSetter__(obj.name,(function(loc){return function(val){gl.uniformMatrix3fv(loc,false,new CanvasFloatArray(val));};})(loc));break;case gl.FLOAT_MAT4:shader.__defineSetter__(obj.name,(function(loc){return function(val){gl.uniformMatrix4fv(loc,false,new CanvasFloatArray(val));};})(loc));break;default:x3dom.debug.logInfo('GLSL program variable '+obj.name+' has unknown type '+obj.type);}} for(i=0;ok;++i){try{obj=gl.getActiveAttrib(sp,i);} catch(ea){} if(gl.getError()!==0){break;} loc=gl.getAttribLocation(sp,obj.name);shader[obj.name]=loc;} return shader;} Context.prototype.setupShape=function(gl,shape) {if(x3dom.isa(shape._geometry,x3dom.nodeTypes.Text)){var text_canvas=document.createElementNS('http://www.w3.org/1999/xhtml','canvas');var text_ctx=text_canvas.getContext('2d');var fontStyle=shape._geometry._fontStyle;var font_family='SANS';text_ctx.mozTextStyle='48px '+font_family;var i=0;var text_w=0;var string=shape._geometry._string;for(i=0;i0){shape._webgl.shader=getShaderProgram(gl,['vs-x3d-vertexcolor','fs-x3d-vertexcolor']);} else{shape._webgl.shader=getShaderProgram(gl,['vs-x3d-untextured','fs-x3d-untextured']);} var sp=shape._webgl.shader;if(sp.position!==undefined) {var positionBuffer=gl.createBuffer();shape._webgl.buffers[1]=positionBuffer;gl.bindBuffer(gl.ARRAY_BUFFER,positionBuffer);var vertices=new CanvasFloatArray(shape._webgl.positions);gl.bufferData(gl.ARRAY_BUFFER,vertices,gl.STATIC_DRAW);gl.bindBuffer(gl.ARRAY_BUFFER,positionBuffer);gl.vertexAttribPointer(sp.position,3,gl.FLOAT,false,0,0);var indicesBuffer=gl.createBuffer();shape._webgl.buffers[0]=indicesBuffer;var indexArray=new CanvasUnsignedShortArray(shape._webgl.indexes);gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER,indicesBuffer);gl.bufferData(gl.ELEMENT_ARRAY_BUFFER,indexArray,gl.STATIC_DRAW);delete vertices;delete indexArray;} if(sp.normal!==undefined) {var normalBuffer=gl.createBuffer();shape._webgl.buffers[2]=normalBuffer;var normals=new CanvasFloatArray(shape._webgl.normals);gl.bindBuffer(gl.ARRAY_BUFFER,normalBuffer);gl.bufferData(gl.ARRAY_BUFFER,normals,gl.STATIC_DRAW);gl.vertexAttribPointer(sp.normal,3,gl.FLOAT,false,0,0);delete normals;} if(sp.texcoord!==undefined) {var texcBuffer=gl.createBuffer();shape._webgl.buffers[3]=texcBuffer;var texCoords=new CanvasFloatArray(shape._webgl.texcoords);gl.bindBuffer(gl.ARRAY_BUFFER,texcBuffer);gl.bufferData(gl.ARRAY_BUFFER,texCoords,gl.STATIC_DRAW);gl.vertexAttribPointer(sp.texcoord,2,gl.FLOAT,false,0,0);delete texCoords;} if(sp.color!==undefined) {var colorBuffer=gl.createBuffer();shape._webgl.buffers[4]=colorBuffer;var colors=new CanvasFloatArray(shape._webgl.colors);gl.bindBuffer(gl.ARRAY_BUFFER,colorBuffer);gl.bufferData(gl.ARRAY_BUFFER,colors,gl.STATIC_DRAW);gl.vertexAttribPointer(sp.color,3,gl.FLOAT,false,0,0);delete colors;}}};Context.prototype.renderScene=function(scene) {var gl=this.ctx3d;gl.viewport(0,0,this.canvas.width,this.canvas.height);var bgCol=scene.getSkyColor();gl.clearColor(bgCol[0],bgCol[1],bgCol[2],bgCol[3]);gl.clearDepth(1.0);gl.clear(gl.COLOR_BUFFER_BIT|gl.DEPTH_BUFFER_BIT|gl.STENCIL_BUFFER_BIT);gl.enable(gl.DEPTH_TEST);gl.depthFunc(gl.LEQUAL);gl.enable(gl.CULL_FACE);gl.enable(gl.BLEND);gl.blendFunc(gl.SRC_ALPHA,gl.ONE_MINUS_SRC_ALPHA);var sp=getDefaultShaderProgram(gl);if(!scene._webgl){sp=getDefaultShaderProgram(gl);scene._webgl={shader:sp};} var i=0,t0,t1;if(scene.drawableObjects===undefined||!scene.drawableObjects){scene.drawableObjects=[];t0=new Date().getTime();scene._collectDrawableObjects(x3dom.fields.SFMatrix4.identity(),scene.drawableObjects);t1=new Date().getTime()-t0;if(this.canvas.parent.statDiv){this.canvas.parent.statDiv.appendChild(document.createElement("br"));this.canvas.parent.statDiv.appendChild(document.createTextNode("traverse: "+t1));}} t0=new Date().getTime();var mat_view=scene.getViewMatrix();var light,lightOn;var slights=scene.getLights();if(slights.length>0){light=slights[0]._direction;lightOn=(slights[0]._on===true)?1.0:0.0;lightOn=lightOn*slights[0]._intensity;} else{light=new x3dom.fields.SFVec3(0,-1,0);lightOn=0.0;} light=mat_view.multMatrixVec(light);var zPos=[];for(i=0,n=scene.drawableObjects.length;i=1){return this._transformMatrix(this._parentNodes[0]._getCurrentTransform());} else{return x3dom.fields.SFMatrix4.identity();}},_transformMatrix:function(transform){return transform;},_getVolume:function(min,max,invalidate) {var valid=false;for(var i=0;ichildMin.x){min.x=childMin.x;} if(min.y>childMin.y){min.y=childMin.y;} if(min.z>childMin.z){min.z=childMin.z;} if(max.x3) {this._min=new x3dom.fields.SFVec3(coords[0],coords[1],coords[2]);this._max=new x3dom.fields.SFVec3(coords[0],coords[1],coords[2]);} else {this._min=new x3dom.fields.SFVec3(0,0,0);this._max=new x3dom.fields.SFVec3(0,0,0);} for(var i=3;icoords[i+0]){this._min.x=coords[i+0];} if(this._min.y>coords[i+1]){this._min.y=coords[i+1];} if(this._min.z>coords[i+2]){this._min.z=coords[i+2];} if(this._max.xb){var t=a;a=b;b=t;} if(new_verts[a]===undefined){new_verts[a]=[];} if(new_verts[a][b]===undefined){new_verts[a][b]=verts.length/3;var x=(verts[a*3]+verts[b*3])/2;var y=(verts[a*3+1]+verts[b*3+1])/2;var z=(verts[a*3+2]+verts[b*3+2])/2;var s=r/Math.sqrt(x*x+y*y+z*z);var xs=x*s,ys=y*s,zs=z*s;verts.push(xs,ys,zs);var l=Math.sqrt(xs*xs+ys*ys+zs*zs);norms.push(xs/l,ys/s,zs/l);} return new_verts[a][b];} for(var k=0;k<3;++k){new_verts=[];new_tris=[];for(var i=0;i0) {i.push(k+0);i.push(k+2);i.push(k+1);i.push(k+1);i.push(k+2);i.push(k+3);k+=2;}} if(bottomRadius>0) {var base=p.length/3;for(j=sides-1;j>=0;j--) {beta=j*delta;x=bottomRadius*Math.sin(beta);z=-bottomRadius*Math.cos(beta);p.push(x,-height/2,z);n.push(0,-1,0);t.push(x/bottomRadius/2+0.5,z/bottomRadius/2+0.5);} var h=base+1;for(j=2;j0) {i.push(k+0);i.push(k+1);i.push(k+2);i.push(k+2);i.push(k+1);i.push(k+3);k+=2;}} if(radius>0) {var base=p.length/3;for(j=sides-1;j>=0;j--) {beta=j*delta;x=radius*Math.sin(beta);z=-radius*Math.cos(beta);p.push(x,height/2,z);n.push(0,1,0);t.push(x/radius/2+0.5,-z/radius/2+0.5);} var h=base+1;for(j=2;j=0;j--) {beta=j*delta;x=radius*Math.sin(beta);z=-radius*Math.cos(beta);p.push(x,-height/2,z);n.push(0,-1,0);t.push(x/radius/2+0.5,z/radius/2+0.5);} h=base+1;for(j=2;jchildMin.x)nMin.x=childMin.x;if(nMin.y>childMin.y)nMin.y=childMin.y;if(nMin.z>childMin.z)nMin.z=childMin.z;if(nMax.x=this._key[this._key.length-1]) return this._keyValue[this._key.length-1];for(var i=0;i=this._startTime);var cycleFrac,cycle,fraction;if(this._cycleInterval>0){cycleFrac=(ts-this._startTime)/this._cycleInterval;cycle=Math.floor(cycleFrac);fraction=cycleFrac-cycle;} this._postMessage('fraction_changed',fraction);},}));x3dom.registerNodeType("Scene","base",defineClass(x3dom.nodeTypes.X3DGroupingNode,function(ctx){x3dom.nodeTypes.Scene.superClass.call(this,ctx);this._rotMat=x3dom.fields.SFMatrix4.identity();this._transMat=x3dom.fields.SFMatrix4.identity();this._movement=new x3dom.fields.SFVec3(0,0,0);this._width=400;this._height=300;this._lastX=-1;this._lastY=-1;this._pick=new x3dom.fields.SFVec3(0,0,0);this._ctx=ctx;this._cam=null;this._bgnd=null;this._navi=null;this._lights=[];},{getViewpoint:function() {if(this._cam==null) {this._cam=this._find(x3dom.nodeTypes.Viewpoint);if(!this._cam) {var nodeType=x3dom.nodeTypes["Viewpoint"];this._cam=new nodeType(this._ctx);x3dom.debug.logInfo("Created ViewBindable.");}} return this._cam;},getLights:function() {if(this._lights.length==0) this._lights=this._findAll(x3dom.nodeTypes.DirectionalLight);return this._lights;},getNavInfo:function() {if(this._navi==null) {this._navi=this._find(x3dom.nodeTypes.NavigationInfo);if(!this._navi) {var nodeType=x3dom.nodeTypes["NavigationInfo"];this._navi=new nodeType(this._ctx);x3dom.debug.logInfo("Created UserBindable.");}} return this._navi;},getVolume:function(min,max,invalidate) {var MIN=new x3dom.fields.SFVec3(Number.MAX_VALUE,Number.MAX_VALUE,Number.MAX_VALUE);var MAX=new x3dom.fields.SFVec3(Number.MIN_VALUE,Number.MIN_VALUE,Number.MIN_VALUE);var valid=this._getVolume(MIN,MAX,invalidate);min.x=MIN.x;min.y=MIN.y;min.z=MIN.z;max.x=MAX.x;max.y=MAX.y;max.z=MAX.z;return valid;},getViewpointMatrix:function() {var viewpoint=this.getViewpoint();var mat_viewpoint=viewpoint._getCurrentTransform();return mat_viewpoint.mult(viewpoint.getViewMatrix());},getViewMatrix:function() {return this.getViewpointMatrix().mult(this._transMat).mult(this._rotMat);},getSkyColor:function() {if(this._bgnd==null) {this._bgnd=this._find(x3dom.nodeTypes.Background);if(!this._bgnd) {var nodeType=x3dom.nodeTypes["Background"];this._bgnd=new nodeType(this._ctx);x3dom.debug.logInfo("Created BackgroundBindable.");}} var bgCol=this._bgnd.getSkyColor().toGL();if(bgCol.length>2) bgCol[3]=1.0-this._bgnd.getTransparency();return bgCol;},getProjectionMatrix:function() {var viewpoint=this.getViewpoint();return viewpoint.getProjectionMatrix(this._width/this._height);},getWCtoCCMatrix:function() {var view=this.getViewMatrix();var proj=this.getProjectionMatrix();return proj.mult(view);},getCCtoWCMatrix:function() {var mat=this.getWCtoCCMatrix();return mat.inverse();},calcViewRay:function(x,y) {var cctowc=this.getCCtoWCMatrix();var rx=x/(this._width-1.0)*2.0-1.0;var ry=(this._height-1.0-y)/(this._height-1.0)*2.0-1.0;var from=cctowc.multFullMatrixPnt(new x3dom.fields.SFVec3(rx,ry,-1));var at=cctowc.multFullMatrixPnt(new x3dom.fields.SFVec3(rx,ry,1));var dir=at.subtract(from);return new x3dom.fields.Line(from,dir);},onMousePress:function(x,y,buttonState) {this._lastX=x;this._lastY=y;var line=this.calcViewRay(x,y);var isect=this._doIntersect(line);if(isect) {this._pick.x=line.hitPoint.x;this._pick.y=line.hitPoint.y;this._pick.z=line.hitPoint.z;x3dom.debug.logInfo("Ray hit at position "+this._pick);} else {var dir=this.getViewMatrix().e2().negate();var u=dir.dot(line.pos.negate())/dir.dot(line.dir);this._pick=line.pos.add(line.dir.scale(u));}},onMouseRelease:function(x,y,buttonState) {this._lastX=x;this._lastY=y;},onDoubleClick:function(x,y) {var navi=this.getNavInfo();if(navi._type[0].length<=1||navi._type[0].toLowerCase()=="none") return;var viewpoint=this.getViewpoint();viewpoint._centerOfRotation.x=this._pick.x;viewpoint._centerOfRotation.y=this._pick.y;viewpoint._centerOfRotation.z=this._pick.z;x3dom.debug.logInfo("New center of Rotation: "+this._pick);},ondrag:function(x,y,buttonState) {var navi=this.getNavInfo();if(navi._type[0].length<=1||navi._type[0].toLowerCase()=="none") return;var dx=x-this._lastX;var dy=y-this._lastY;if(buttonState&1) {var alpha=(dy*2*Math.PI)/this._width;var beta=(dx*2*Math.PI)/this._height;var mat=this.getViewMatrix();var mx=x3dom.fields.SFMatrix4.rotationX(alpha);var my=x3dom.fields.SFMatrix4.rotationY(beta);var viewpoint=this.getViewpoint();var center=viewpoint.getCenterOfRotation();mat.setTranslate(new x3dom.fields.SFVec3(0,0,0));this._rotMat=this._rotMat.mult(x3dom.fields.SFMatrix4.translation(center)).mult(mat.inverse()).mult(mx).mult(my).mult(mat).mult(x3dom.fields.SFMatrix4.translation(center.negate()));} if(buttonState&4) {var min=new x3dom.fields.SFVec3(0,0,0);var max=new x3dom.fields.SFVec3(0,0,0);var ok=this.getVolume(min,max,true);var d=ok?(max.subtract(min)).length():10;var vec=new x3dom.fields.SFVec3(d*dx/this._width,d*(-dy)/this._height,0);this._movement=this._movement.add(vec);var viewpoint=this.getViewpoint();this._transMat=viewpoint.getViewMatrix().inverse().mult(x3dom.fields.SFMatrix4.translation(this._movement)).mult(viewpoint.getViewMatrix());} if(buttonState&2) {var min=new x3dom.fields.SFVec3(0,0,0);var max=new x3dom.fields.SFVec3(0,0,0);var ok=this.getVolume(min,max,true);var d=ok?(max.subtract(min)).length():10;var vec=new x3dom.fields.SFVec3(0,0,d*(dx+dy)/this._height);this._movement=this._movement.add(vec);var viewpoint=this.getViewpoint();this._transMat=viewpoint.getViewMatrix().inverse().mult(x3dom.fields.SFMatrix4.translation(this._movement)).mult(viewpoint.getViewMatrix());} this._lastX=x;this._lastY=y;}}));x3dom.registerNodeType("Anchor","Networking",defineClass(x3dom.nodeTypes.X3DGroupingNode,function(ctx){x3dom.nodeTypes.Anchor.superClass.call(this,ctx);this._attribute_MFString(ctx,'url',[]);},{_doIntersect:function(line){var isect=false;for(var i=0;i0){window.location=this._url[0];} return isect;}}));x3dom.registerNodeType("Inline","Networking",defineClass(x3dom.nodeTypes.X3DGroupingNode,function(ctx){x3dom.nodeTypes.Inline.superClass.call(this,ctx);this._attribute_MFString(ctx,'url',[]);this._attribute_SFBool(ctx,'load',true);var that=this;var xhr=new XMLHttpRequest();xhr.overrideMimeType('text/xml');xhr.onreadystatechange=function(){if(xhr.readyState==4){if(xhr.responseXML.documentElement.localName=='parsererror'){x3dom.debug.logInfo('XML parser failed on '+this._url+':\n'+xhr.responseXML.documentElement.textContent);return;}} else{x3dom.debug.logInfo('Loading inlined data... (readyState: '+xhr.readyState+')');return;} if(xhr.status!==200){x3dom.debug.logError('XMLHttpRequest requires a web server running!');return;} x3dom.debug.logInfo('Inline: downloading '+that._url+' done.');var xml=xhr.responseXML;var inlScene=xml.getElementsByTagName('Scene')[0];x3dom.parsingInline=true;that._childNodes=[ctx.setupNodePrototypes(inlScene,ctx)];that._childNodes[0]._parentNodes.push(that);x3dom.parsingInline=false;x3dom.debug.logInfo('Inline: added '+that._url+' to scene.');};x3dom.debug.logInfo('Inline: downloading '+this._url);xhr.open('GET',this._url,true);xhr.send(null);},{}));x3dom.X3DDocument=function(canvas,ctx){this.canvas=canvas;this.ctx=ctx;this.onload=function(){};this.onerror=function(){};} x3dom.X3DDocument.prototype.load=function(uri,sceneElemPos){var uri_docs={};var queued_uris=[uri];var doc=this;function next_step(){if(queued_uris.length==0){doc._setup(uri_docs[uri],uri_docs,sceneElemPos);doc.onload();return;} var next_uri=queued_uris.shift();if(x3dom.isX3DElement(next_uri)&&next_uri.localName=='X3D'){uri_docs[next_uri]=next_uri;next_step();}} next_step();} x3dom.xpath=function(doc,expr,node){var xpe=new XPathEvaluator();function nsResolver(prefix){var ns={'x3d':x3dom.x3dNS,};return ns[prefix]||null;} var result=xpe.evaluate(expr,node||doc,nsResolver,0,null);var res,found=[];while(res=result.iterateNext()) found.push(res);return found;} x3dom.X3DDocument.prototype._setup=function(sceneDoc,uriDocs,sceneElemPos){var ctx={defMap:{},docs:uriDocs,setupNodePrototypes:this._setupNodePrototypes,assert:x3dom.debug.assert,log:x3dom.debug.logInfo,};var doc=this;x3dom.debug.logInfo("Loading scene #"+sceneElemPos+" from "+x3dom.xpath(sceneDoc,'//x3d:Scene',sceneDoc).length+".");var scene=this._setupNodePrototypes(x3dom.xpath(sceneDoc,'//x3d:Scene',sceneDoc)[sceneElemPos],ctx);if(sceneElemPos==0) scene._routes=Array.map(x3dom.xpath(sceneDoc,'//x3d:ROUTE',null),function(route){var fromNode=scene._getNodeByDEF(route.getAttribute('fromNode'));var toNode=scene._getNodeByDEF(route.getAttribute('toNode'));if(!(fromNode&&toNode)){x3dom.debug.logInfo("Broken route - can't find all DEFs for "+route.getAttribute('fromNode')+" -> "+route.getAttribute('toNode'));return;} fromNode._setupRoute(route.getAttribute('fromField'),toNode,route.getAttribute('toField'));});var domEventListener={onAttrModified:function(e){var attrToString={1:"MODIFICATION",2:"ADDITION",3:"REMOVAL"};e.target._x3domNode._updateField(e.attrName,e.newValue);},onNodeRemoved:function(e){x3dom.debug.logInfo("MUTATION: "+e+", "+e.type+", removed node="+e.target.tagName);},onNodeInserted:function(e){var parent=e.target.parentNode._x3domNode;var child=e.target;x3dom.parsingInline=true;var newChild=scene._ctx.setupNodePrototypes(child,scene._ctx);parent._childNodes.push(newChild);newChild._parentNodes.push(parent);x3dom.parsingInline=false;}};sceneDoc.addEventListener('DOMNodeRemoved',domEventListener.onNodeRemoved,true);sceneDoc.addEventListener('DOMNodeInserted',domEventListener.onNodeInserted,true);sceneDoc.addEventListener('DOMAttrModified',domEventListener.onAttrModified,true);this._scene=scene;this._scene._width=this.canvas.width;this._scene._height=this.canvas.height;};x3dom.X3DDocument.prototype._setupNodePrototypes=function(node,ctx){var n,t;if(x3dom.isX3DElement(node)){if(node.hasAttribute('USE')){n=ctx.defMap[node.getAttribute('USE')];if(n==null) ctx.log('Could not USE: '+node.getAttribute('USE'));return n;} else{if(node.localName=='ROUTE') return n;var nodeType=x3dom.nodeTypes[node.localName];if(nodeType===undefined){x3dom.debug.logInfo("Unrecognised element "+node.localName);} else{ctx.xmlNode=node;n=new nodeType(ctx);node._x3domNode=n;if(n._autoChild===true){Array.forEach(Array.map(node.childNodes,function(n){return ctx.setupNodePrototypes(n,ctx)},this),function(c){if(c)n.addChild(c)});} return n;}}}};x3dom.X3DDocument.prototype.advanceTime=function(t){if(this._scene){Array.forEach(this._scene._findAll(x3dom.nodeTypes.TimeSensor),function(timer){timer._onframe(t);});}};x3dom.X3DDocument.prototype.render=function(ctx){if(!ctx) return;ctx.renderScene(this._scene);} x3dom.X3DDocument.prototype.ondrag=function(x,y,buttonState){this._scene.ondrag(x,y,buttonState);} x3dom.X3DDocument.prototype.onMousePress=function(x,y,buttonState){this._scene.onMousePress(x,y,buttonState);} x3dom.X3DDocument.prototype.onMouseRelease=function(x,y,buttonState){this._scene.onMouseRelease(x,y,buttonState);} x3dom.X3DDocument.prototype.onDoubleClick=function(x,y){this._scene.onDoubleClick(x,y);} x3dom.X3DDocument.prototype.onKeyPress=function(charCode) {switch(charCode) {case 97:break;case 109:{if(this._scene._points===undefined) this._scene._points=true;else this._scene._points=!this._scene._points;} break;case 114:{this._scene._rotMat=x3dom.fields.SFMatrix4.identity();this._scene._transMat=x3dom.fields.SFMatrix4.identity();this._scene._movement=new x3dom.fields.SFVec3(0,0,0);} break;default:}} x3dom.X3DDocument.prototype.shutdown=function(ctx) {if(!ctx) return;ctx.shutdown(this._scene);} x3dom.fields={};x3dom.fields.SFMatrix4=function(_00,_01,_02,_03,_10,_11,_12,_13,_20,_21,_22,_23,_30,_31,_32,_33){if(arguments.length==0){this._00=1;this._01=0;this._02=0;this._03=0;this._10=0;this._11=1;this._12=0;this._13=0;this._20=0;this._21=0;this._22=1;this._23=0;this._30=0;this._31=0;this._32=0;this._33=1;}else{this._00=_00;this._01=_01;this._02=_02;this._03=_03;this._10=_10;this._11=_11;this._12=_12;this._13=_13;this._20=_20;this._21=_21;this._22=_22;this._23=_23;this._30=_30;this._31=_31;this._32=_32;this._33=_33;}} x3dom.fields.SFMatrix4.prototype.e0=function(){var baseVec=new x3dom.fields.SFVec3(this._00,this._10,this._20);return baseVec.normalised();} x3dom.fields.SFMatrix4.prototype.e1=function(){var baseVec=new x3dom.fields.SFVec3(this._01,this._11,this._21);return baseVec.normalised();} x3dom.fields.SFMatrix4.prototype.e2=function(){var baseVec=new x3dom.fields.SFVec3(this._02,this._12,this._22);return baseVec.normalised();} x3dom.fields.SFMatrix4.prototype.e3=function(){return new x3dom.fields.SFVec3(this._03,this._13,this._23);} x3dom.fields.SFMatrix4.identity=function(){return new x3dom.fields.SFMatrix4(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1);} x3dom.fields.SFMatrix4.translation=function(vec){return new x3dom.fields.SFMatrix4(1,0,0,vec.x,0,1,0,vec.y,0,0,1,vec.z,0,0,0,1);} x3dom.fields.SFMatrix4.rotationX=function(a){var c=Math.cos(a);var s=Math.sin(a);return new x3dom.fields.SFMatrix4(1,0,0,0,0,c,-s,0,0,s,c,0,0,0,0,1);} x3dom.fields.SFMatrix4.rotationY=function(a){var c=Math.cos(a);var s=Math.sin(a);return new x3dom.fields.SFMatrix4(c,0,s,0,0,1,0,0,-s,0,c,0,0,0,0,1);} x3dom.fields.SFMatrix4.rotationZ=function(a){var c=Math.cos(a);var s=Math.sin(a);return new x3dom.fields.SFMatrix4(c,-s,0,0,s,c,0,0,0,0,1,0,0,0,0,1);} x3dom.fields.SFMatrix4.scale=function(vec){return new x3dom.fields.SFMatrix4(vec.x,0,0,0,0,vec.y,0,0,0,0,vec.z,0,0,0,0,1);} x3dom.fields.SFMatrix4.prototype.setTranslate=function(vec){this._03=vec.x;this._13=vec.y;this._23=vec.z;} x3dom.fields.SFMatrix4.prototype.setScale=function(vec){this._00=vec.x;this._11=vec.y;this._22=vec.z;} x3dom.fields.SFMatrix4.parseRotation=function(str){var m=/^(\S+)\s+(\S+)\s+(\S+)\s+(\S+)$/.exec(str);var x=+m[1],y=+m[2],z=+m[3],a=+m[4];var d=Math.sqrt(x*x+y*y+z*z);if(d==0){x=1;y=z=0;}else{x/=d;y/=d;z/=d;} var c=Math.cos(a);var s=Math.sin(a);var t=1-c;return new x3dom.fields.SFMatrix4(t*x*x+c,t*x*y+s*z,t*x*z-s*y,0,t*x*y-s*z,t*y*y+c,t*y*z+s*x,0,t*x*z+s*y,t*y*z-s*x,t*z*z+c,0,0,0,0,1).transpose();} x3dom.fields.SFMatrix4.prototype.mult=function(that){return new x3dom.fields.SFMatrix4(this._00*that._00+this._01*that._10+this._02*that._20+this._03*that._30,this._00*that._01+this._01*that._11+this._02*that._21+this._03*that._31,this._00*that._02+this._01*that._12+this._02*that._22+this._03*that._32,this._00*that._03+this._01*that._13+this._02*that._23+this._03*that._33,this._10*that._00+this._11*that._10+this._12*that._20+this._13*that._30,this._10*that._01+this._11*that._11+this._12*that._21+this._13*that._31,this._10*that._02+this._11*that._12+this._12*that._22+this._13*that._32,this._10*that._03+this._11*that._13+this._12*that._23+this._13*that._33,this._20*that._00+this._21*that._10+this._22*that._20+this._23*that._30,this._20*that._01+this._21*that._11+this._22*that._21+this._23*that._31,this._20*that._02+this._21*that._12+this._22*that._22+this._23*that._32,this._20*that._03+this._21*that._13+this._22*that._23+this._23*that._33,this._30*that._00+this._31*that._10+this._32*that._20+this._33*that._30,this._30*that._01+this._31*that._11+this._32*that._21+this._33*that._31,this._30*that._02+this._31*that._12+this._32*that._22+this._33*that._32,this._30*that._03+this._31*that._13+this._32*that._23+this._33*that._33);} x3dom.fields.SFMatrix4.prototype.multMatrixPnt=function(vec){return new x3dom.fields.SFVec3(this._00*vec.x+this._01*vec.y+this._02*vec.z+this._03,this._10*vec.x+this._11*vec.y+this._12*vec.z+this._13,this._20*vec.x+this._21*vec.y+this._22*vec.z+this._23);} x3dom.fields.SFMatrix4.prototype.multMatrixVec=function(vec){return new x3dom.fields.SFVec3(this._00*vec.x+this._01*vec.y+this._02*vec.z,this._10*vec.x+this._11*vec.y+this._12*vec.z,this._20*vec.x+this._21*vec.y+this._22*vec.z);} x3dom.fields.SFMatrix4.prototype.multFullMatrixPnt=function(vec){var w=this._30*vec.x+this._31*vec.y+this._32*vec.z+this._33;if(w)w=1.0/w;return new x3dom.fields.SFVec3((this._00*vec.x+this._01*vec.y+this._02*vec.z+this._03)*w,(this._10*vec.x+this._11*vec.y+this._12*vec.z+this._13)*w,(this._20*vec.x+this._21*vec.y+this._22*vec.z+this._23)*w);} x3dom.fields.SFMatrix4.prototype.transpose=function(){return new x3dom.fields.SFMatrix4(this._00,this._10,this._20,this._30,this._01,this._11,this._21,this._31,this._02,this._12,this._22,this._32,this._03,this._13,this._23,this._33);} x3dom.fields.SFMatrix4.prototype.toGL=function(){return[this._00,this._10,this._20,this._30,this._01,this._11,this._21,this._31,this._02,this._12,this._22,this._32,this._03,this._13,this._23,this._33];} x3dom.fields.SFMatrix4.prototype.decompose=function(){var T=new SFVec3(this._03,this._13,this._23);var S=new SFVec3(1,1,1);var angle_x,angle_y,angle_y,tr_x,tr_y,C;angle_y=Math.asin(this._02);C=Math.cos(angle_y);if(Math.abs(C)>0.005){tr_x=this._22/C;tr_y=-this._12/C;angle_x=Math.atan2(tr_y,tr_x);tr_x=this._00/C;tr_y=-this._01/C;angle_z=Math.atan2(tr_y,tr_x);}else{angle_x=0;tr_x=this._11;tr_y=this._10;angle_z=Math.atan2(tr_y,tr_x);} return[T,S,angle_x,angle_y,angle_z];} x3dom.fields.SFMatrix4.prototype.det3=function(a1,a2,a3,b1,b2,b3,c1,c2,c3){var d=(a1*b2*c3)+(a2*b3*c1)+(a3*b1*c2)- (a1*b3*c2)-(a2*b1*c3)-(a3*b2*c1);return d;} x3dom.fields.SFMatrix4.prototype.det=function(){var a1,a2,a3,a4,b1,b2,b3,b4,c1,c2,c3,c4,d1,d2,d3,d4;a1=this._00;b1=this._10;c1=this._20;d1=this._30;a2=this._01;b2=this._11;c2=this._21;d2=this._31;a3=this._02;b3=this._12;c3=this._22;d3=this._32;a4=this._03;b4=this._13;c4=this._23;d4=this._33;var d=+a1*this.det3(b2,b3,b4,c2,c3,c4,d2,d3,d4) -b1*this.det3(a2,a3,a4,c2,c3,c4,d2,d3,d4) +c1*this.det3(a2,a3,a4,b2,b3,b4,d2,d3,d4) -d1*this.det3(a2,a3,a4,b2,b3,b4,c2,c3,c4);return d;} x3dom.fields.SFMatrix4.prototype.inverse=function(){var a1,a2,a3,a4,b1,b2,b3,b4,c1,c2,c3,c4,d1,d2,d3,d4;a1=this._00;b1=this._10;c1=this._20;d1=this._30;a2=this._01;b2=this._11;c2=this._21;d2=this._31;a3=this._02;b3=this._12;c3=this._22;d3=this._32;a4=this._03;b4=this._13;c4=this._23;d4=this._33;var rDet=this.det();if(Math.abs(rDet)<0.000001) {x3dom.debug.logInfo("Invert matrix: singular matrix, no inverse!");return x3dom.fields.SFMatrix4.identity();} rDet=1.0/rDet;return new x3dom.fields.SFMatrix4(+this.det3(b2,b3,b4,c2,c3,c4,d2,d3,d4)*rDet,-this.det3(a2,a3,a4,c2,c3,c4,d2,d3,d4)*rDet,+this.det3(a2,a3,a4,b2,b3,b4,d2,d3,d4)*rDet,-this.det3(a2,a3,a4,b2,b3,b4,c2,c3,c4)*rDet,-this.det3(b1,b3,b4,c1,c3,c4,d1,d3,d4)*rDet,+this.det3(a1,a3,a4,c1,c3,c4,d1,d3,d4)*rDet,-this.det3(a1,a3,a4,b1,b3,b4,d1,d3,d4)*rDet,+this.det3(a1,a3,a4,b1,b3,b4,c1,c3,c4)*rDet,+this.det3(b1,b2,b4,c1,c2,c4,d1,d2,d4)*rDet,-this.det3(a1,a2,a4,c1,c2,c4,d1,d2,d4)*rDet,+this.det3(a1,a2,a4,b1,b2,b4,d1,d2,d4)*rDet,-this.det3(a1,a2,a4,b1,b2,b4,c1,c2,c4)*rDet,-this.det3(b1,b2,b3,c1,c2,c3,d1,d2,d3)*rDet,+this.det3(a1,a2,a3,c1,c2,c3,d1,d2,d3)*rDet,-this.det3(a1,a2,a3,b1,b2,b3,d1,d2,d3)*rDet,+this.det3(a1,a2,a3,b1,b2,b3,c1,c2,c3)*rDet);} x3dom.fields.SFMatrix4.prototype.toString=function(){return'[SFMatrix4 '+ this._00+', '+this._01+', '+this._02+', '+this._03+'; '+ this._10+', '+this._11+', '+this._12+', '+this._13+'; '+ this._20+', '+this._21+', '+this._22+', '+this._23+'; '+ this._30+', '+this._31+', '+this._32+', '+this._33+']';} x3dom.fields.SFVec2=function(x,y){if(arguments.length==0){this.x=this.y=0;}else{this.x=x;this.y=y;}} x3dom.fields.SFVec2.parse=function(str){var m=/^([+-]?\d*\.*\d*)\s*,?\s*([+-]?\d*\.*\d*)$/.exec(str);return new x3dom.fields.SFVec2(+m[1],+m[2]);} x3dom.fields.SFVec2.prototype.add=function(that){return new x3dom.fields.SFVec2(this.x+that.x,this.y+that.y);} x3dom.fields.SFVec2.prototype.subtract=function(that){return new x3dom.fields.SFVec2(this.x-that.x,this.y-that.y);} x3dom.fields.SFVec2.prototype.negate=function(){return new x3dom.fields.SFVec2(-this.x,-this.y);} x3dom.fields.SFVec2.prototype.dot=function(that){return this.x*that.x+this.y*that.y;} x3dom.fields.SFVec2.prototype.reflect=function(n){var d2=this.dot(n)*2;return new x3dom.fields.SFVec2(this.x-d2*n.x,this.y-d2*n.y);} x3dom.fields.SFVec2.prototype.normalised=function(that){var n=this.length();if(n)n=1.0/n;return new x3dom.fields.SFVec2(this.x*n,this.y*n);} x3dom.fields.SFVec2.prototype.multiply=function(n){return new x3dom.fields.SFVec2(this.x*n,this.y*n);} x3dom.fields.SFVec2.prototype.length=function(){return Math.sqrt((this.x*this.x)+(this.y*this.y));} x3dom.fields.SFVec2.prototype.toGL=function(){return[this.x,this.y];} x3dom.fields.SFVec2.prototype.toString=function(){return"{ x "+this.x+" y "+this.y+" }";} x3dom.fields.SFVec2.prototype.setValueByStr=function(s){var m=/^([+-]?\d*\.*\d*)\s*,?\s*([+-]?\d*\.*\d*)$/.exec(s);this.x=+m[1];this.y=+m[2];return this;} x3dom.fields.SFVec3=function(x,y,z){if(arguments.length==0){this.x=this.y=this.z=0;}else{this.x=x;this.y=y;this.z=z;}} x3dom.fields.SFVec3.parse=function(str){var m=/^(\S+)\s+(\S+)\s+(\S+)$/.exec(str);return new x3dom.fields.SFVec3(+m[1],+m[2],+m[3]);} x3dom.fields.SFVec3.prototype.add=function(that){return new x3dom.fields.SFVec3(this.x+that.x,this.y+that.y,this.z+that.z);} x3dom.fields.SFVec3.prototype.subtract=function(that){return new x3dom.fields.SFVec3(this.x-that.x,this.y-that.y,this.z-that.z);} x3dom.fields.SFVec3.prototype.negate=function(){return new x3dom.fields.SFVec3(-this.x,-this.y,-this.z);} x3dom.fields.SFVec3.prototype.dot=function(that){return(this.x*that.x+this.y*that.y+this.z*that.z);} x3dom.fields.SFVec3.prototype.cross=function(that){return new x3dom.fields.SFVec3(this.y*that.z-this.z*that.y,this.z*that.x-this.x*that.z,this.x*that.y-this.y*that.x);} x3dom.fields.SFVec3.prototype.reflect=function(n){var d2=this.dot(n)*2;return new x3dom.fields.SFVec3(this.x-d2*n.x,this.y-d2*n.y,this.z-d2*n.z);} x3dom.fields.SFVec3.prototype.length=function(){return Math.sqrt((this.x*this.x)+(this.y*this.y)+(this.z*this.z));} x3dom.fields.SFVec3.prototype.normalised=function(that){var n=this.length();if(n)n=1.0/n;return new x3dom.fields.SFVec3(this.x*n,this.y*n,this.z*n);} x3dom.fields.SFVec3.prototype.scale=function(n){return new x3dom.fields.SFVec3(this.x*n,this.y*n,this.z*n);} x3dom.fields.SFVec3.prototype.toGL=function(){return[this.x,this.y,this.z];} x3dom.fields.SFVec3.prototype.toString=function(){return"{ x "+this.x+" y "+this.y+" z "+this.z+" }";} x3dom.fields.Quaternion=function(x,y,z,w){this.x=x;this.y=y;this.z=z;this.w=w;} x3dom.fields.Quaternion.prototype.mult=function(that){return new x3dom.fields.Quaternion(this.w*that.x+this.x*that.w+this.y*that.z-this.z*that.y,this.w*that.y+this.y*that.w+this.z*that.x-this.x*that.z,this.w*that.z+this.z*that.w+this.x*that.y-this.y*that.x,this.w*that.w-this.x*that.x-this.y*that.y-this.z*that.z);} x3dom.fields.Quaternion.parseAxisAngle=function(str){var m=/^(\S+)\s+(\S+)\s+(\S+)\s+(\S+)$/.exec(str);return x3dom.fields.Quaternion.axisAngle(new x3dom.fields.SFVec3(+m[1],+m[2],+m[3]),+m[4]);} x3dom.fields.Quaternion.axisAngle=function(axis,a){var t=axis.length();if(t>0.000001) {var s=Math.sin(a/2)/t;var c=Math.cos(a/2);return new x3dom.fields.Quaternion(axis.x*s,axis.y*s,axis.z*s,c);} else {return new x3dom.fields.Quaternion(0,0,0,1);}} x3dom.fields.Quaternion.prototype.toMatrix=function(){var xx=this.x*this.x*2;var xy=this.x*this.y*2;var xz=this.x*this.z*2;var yy=this.y*this.y*2;var yz=this.y*this.z*2;var zz=this.z*this.z*2;var wx=this.w*this.x*2;var wy=this.w*this.y*2;var wz=this.w*this.z*2;return new x3dom.fields.SFMatrix4(1-(yy+zz),xy-wz,xz+wy,0,xy+wz,1-(xx+zz),yz-wx,0,xz-wy,yz+wx,1-(xx+yy),0,0,0,0,1);} x3dom.fields.Quaternion.prototype.dot=function(that){return this.x*that.x+this.y*that.y+this.z*that.z+this.w*that.w;} x3dom.fields.Quaternion.prototype.add=function(that){return new x3dom.fields.Quaternion(this.x+that.x,this.y+that.y,this.z+that.z,this.w+that.w);} x3dom.fields.Quaternion.prototype.subtract=function(that){return new x3dom.fields.Quaternion(this.x-that.x,this.y-that.y,this.z-that.z,this.w-that.w);} x3dom.fields.Quaternion.prototype.multScalar=function(s){return new x3dom.fields.Quaternion(this.x*s,this.y*s,this.z*s,this.w*s);} x3dom.fields.Quaternion.prototype.normalised=function(that){var d2=this.dot(that);var id=1.0;if(d2)id=1.0/Math.sqrt(d2);return new x3dom.fields.Quaternion(this.x*id,this.y*id,this.z*id,this.w*id);} x3dom.fields.Quaternion.prototype.negate=function(){return new x3dom.fields.Quaternion(this.x,this.y,this.z,this.w);} x3dom.fields.Quaternion.prototype.slerp=function(that,t){var cosom=this.dot(that);var rot1;if(cosom<0.0) {cosom=-cosom;rot1=that.negate();} else {rot1=new x3dom.fields.Quaternion(that.x,that.y,that.z,that.w);} var scalerot0,scalerot1;if((1.0-cosom)>0.00001) {var omega=Math.acos(cosom);var sinom=Math.sin(omega);scalerot0=Math.sin((1.0-t)*omega)/sinom;scalerot1=Math.sin(t*omega)/sinom;} else {scalerot0=1.0-t;scalerot1=t;} return this.multScalar(scalerot0).add(rot1.multScalar(scalerot1));} x3dom.fields.Quaternion.prototype.toString=function(){return'(('+this.x+', '+this.y+', '+this.z+'), '+this.w+')';} x3dom.fields.MFRotation=function(rotArray){if(arguments.length==0){} else{rotArray.map(function(v){this.push(v);},this);}};x3dom.fields.MFRotation.prototype=new Array;x3dom.fields.MFRotation.parse=function(str){var mc=str.match(/([+-]?\d*\.?\d*\s*){4},?\s*/g);var vecs=[];for(var i=0;iEps) {r=1.0/this.dir.x;te=(low.x-this.pos.x)*r;tl=(high.x-this.pos.x)*r;if(tlisect) isect=te;} else if(this.dir.x<-Eps) {r=1.0/this.dir.x;te=(high.x-this.pos.x)*r;tl=(low.x-this.pos.x)*r;if(tlisect) isect=te;} else if(this.pos.xhigh.x) {return false;} if(this.dir.y>Eps) {r=1.0/this.dir.y;te=(low.y-this.pos.y)*r;tl=(high.y-this.pos.y)*r;if(tlisect) isect=te;if(isect-out>=Eps) return false;} else if(this.dir.y<-Eps) {r=1.0/this.dir.y;te=(high.y-this.pos.y)*r;tl=(low.y-this.pos.y)*r;if(tlisect) isect=te;if(isect-out>=Eps) return false;} else if(this.pos.yhigh.y) {return false;} if(this.dir.z>Eps) {r=1.0/this.dir.z;te=(low.z-this.pos.z)*r;tl=(high.z-this.pos.z)*r;if(tlisect) isect=te;} else if(this.dir.z<-Eps) {r=1.0/this.dir.z;te=(high.z-this.pos.z)*r;tl=(low.z-this.pos.z)*r;if(tlisect) isect=te;} else if(this.pos.zhigh.z) {return false;} this.enter=isect;this.exit=out;return(isect-out