THREE.STLLoader=function(manager){this.manager=(manager!==undefined)?manager:THREE.DefaultLoadingManager;};THREE.STLLoader.prototype={constructor:THREE.STLLoader,load:function(url,onLoad,onProgress,onError){var scope=this;var loader=new THREE.FileLoader(scope.manager);loader.setPath(scope.path);loader.setResponseType('arraybuffer');loader.load(url,function(text){try{onLoad(scope.parse(text));}catch(exception){if(onError){onError(exception);}}},onProgress,onError);},setPath:function(value){this.path=value;return this;},parse:function(data){function isBinary(data){var expect,face_size,n_faces,reader;reader=new DataView(data);face_size=(32/8*3)+((32/8*3)*3)+(16/8);n_faces=reader.getUint32(80,true);expect=80+(32/8)+(n_faces*face_size);if(expect===reader.byteLength){return true;}
var solid=[115,111,108,105,100];for(var off=0;off<5;off++){if(matchDataViewAt(solid,reader,off))return false;}
return true;}
function matchDataViewAt(query,reader,offset){for(var i=0,il=query.length;i<il;i++){if(query[i]!==reader.getUint8(offset+i,false))return false;}
return true;}
function parseBinary(data){var reader=new DataView(data);var faces=reader.getUint32(80,true);var r,g,b,hasColors=false,colors;var defaultR,defaultG,defaultB,alpha;for(var index=0;index<80-10;index++){if((reader.getUint32(index,false)==0x434F4C4F)&&(reader.getUint8(index+4)==0x52)&&(reader.getUint8(index+5)==0x3D)){hasColors=true;colors=[];defaultR=reader.getUint8(index+6)/255;defaultG=reader.getUint8(index+7)/255;defaultB=reader.getUint8(index+8)/255;alpha=reader.getUint8(index+9)/255;}}
var dataOffset=84;var faceLength=12*4+2;var geometry=new THREE.BufferGeometry();var vertices=[];var normals=[];for(var face=0;face<faces;face++){var start=dataOffset+face*faceLength;var normalX=reader.getFloat32(start,true);var normalY=reader.getFloat32(start+4,true);var normalZ=reader.getFloat32(start+8,true);if(hasColors){var packedColor=reader.getUint16(start+48,true);if((packedColor&0x8000)===0){r=(packedColor&0x1F)/31;g=((packedColor>>5)&0x1F)/31;b=((packedColor>>10)&0x1F)/31;}else{r=defaultR;g=defaultG;b=defaultB;}}
for(var i=1;i<=3;i++){var vertexstart=start+i*12;vertices.push(reader.getFloat32(vertexstart,true));vertices.push(reader.getFloat32(vertexstart+4,true));vertices.push(reader.getFloat32(vertexstart+8,true));normals.push(normalX,normalY,normalZ);if(hasColors){colors.push(r,g,b);}}}
geometry.addAttribute('position',new THREE.BufferAttribute(new Float32Array(vertices),3));geometry.addAttribute('normal',new THREE.BufferAttribute(new Float32Array(normals),3));if(hasColors){geometry.addAttribute('color',new THREE.BufferAttribute(new Float32Array(colors),3));geometry.hasColors=true;geometry.alpha=alpha;}
return geometry;}
function parseASCII(data){var geometry=new THREE.BufferGeometry();var patternFace=/facet([\s\S]*?)endfacet/g;var faceCounter=0;var patternFloat=/[\s]+([+-]?(?:\d*)(?:\.\d*)?(?:[eE][+-]?\d+)?)/.source;var patternVertex=new RegExp('vertex'+patternFloat+patternFloat+patternFloat,'g');var patternNormal=new RegExp('normal'+patternFloat+patternFloat+patternFloat,'g');var vertices=[];var normals=[];var normal=new THREE.Vector3();var result;while((result=patternFace.exec(data))!==null){var vertexCountPerFace=0;var normalCountPerFace=0;var text=result[0];while((result=patternNormal.exec(text))!==null){normal.x=parseFloat(result[1]);normal.y=parseFloat(result[2]);normal.z=parseFloat(result[3]);normalCountPerFace++;}
while((result=patternVertex.exec(text))!==null){vertices.push(parseFloat(result[1]),parseFloat(result[2]),parseFloat(result[3]));normals.push(normal.x,normal.y,normal.z);vertexCountPerFace++;}
if(normalCountPerFace!==1){console.error('THREE.STLLoader: Something isn\'t right with the normal of face number '+faceCounter);}
if(vertexCountPerFace!==3){console.error('THREE.STLLoader: Something isn\'t right with the vertices of face number '+faceCounter);}
faceCounter++;}
geometry.addAttribute('position',new THREE.Float32BufferAttribute(vertices,3));geometry.addAttribute('normal',new THREE.Float32BufferAttribute(normals,3));return geometry;}
function ensureString(buffer){if(typeof buffer!=='string'){return THREE.LoaderUtils.decodeText(new Uint8Array(buffer));}
return buffer;}
function ensureBinary(buffer){if(typeof buffer==='string'){var array_buffer=new Uint8Array(buffer.length);for(var i=0;i<buffer.length;i++){array_buffer[i]=buffer.charCodeAt(i)&0xff;}
return array_buffer.buffer||array_buffer;}else{return buffer;}}
var binData=ensureBinary(data);return isBinary(binData)?parseBinary(binData):parseASCII(ensureString(data));}};