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615 lines
12 KiB
615 lines
12 KiB
/**
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* @author technohippy / https://github.com/technohippy
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*/
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THREE.ThreeMFLoader = function ( manager ) {
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this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
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this.availableExtensions = [];
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};
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THREE.ThreeMFLoader.prototype = {
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constructor: THREE.ThreeMFLoader,
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load: function ( url, onLoad, onProgress, onError ) {
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var scope = this;
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var loader = new THREE.FileLoader( scope.manager );
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loader.setPath( scope.path );
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loader.setResponseType( 'arraybuffer' );
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loader.load( url, function ( buffer ) {
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onLoad( scope.parse( buffer ) );
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}, onProgress, onError );
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},
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setPath: function ( value ) {
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this.path = value;
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return this;
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},
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parse: function ( data ) {
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var scope = this;
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function loadDocument( data ) {
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var zip = null;
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var file = null;
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var relsName;
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var modelPartNames = [];
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var printTicketPartNames = [];
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var texturesPartNames = [];
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var otherPartNames = [];
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var rels;
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var modelParts = {};
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var printTicketParts = {};
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var texturesParts = {};
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var otherParts = {};
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try {
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zip = new JSZip( data ); // eslint-disable-line no-undef
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} catch ( e ) {
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if ( e instanceof ReferenceError ) {
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console.error( 'THREE.ThreeMFLoader: jszip missing and file is compressed.' );
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return null;
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}
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}
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for ( file in zip.files ) {
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if ( file.match( /\.rels$/ ) ) {
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relsName = file;
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} else if ( file.match( /^3D\/.*\.model$/ ) ) {
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modelPartNames.push( file );
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} else if ( file.match( /^3D\/Metadata\/.*\.xml$/ ) ) {
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printTicketPartNames.push( file );
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} else if ( file.match( /^3D\/Textures\/.*/ ) ) {
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texturesPartNames.push( file );
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} else if ( file.match( /^3D\/Other\/.*/ ) ) {
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otherPartNames.push( file );
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}
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}
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var relsView = new Uint8Array( zip.file( relsName ).asArrayBuffer() );
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var relsFileText = THREE.LoaderUtils.decodeText( relsView );
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rels = parseRelsXml( relsFileText );
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for ( var i = 0; i < modelPartNames.length; i ++ ) {
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var modelPart = modelPartNames[ i ];
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var view = new Uint8Array( zip.file( modelPart ).asArrayBuffer() );
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var fileText = THREE.LoaderUtils.decodeText( view );
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var xmlData = new DOMParser().parseFromString( fileText, 'application/xml' );
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if ( xmlData.documentElement.nodeName.toLowerCase() !== 'model' ) {
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console.error( 'THREE.ThreeMFLoader: Error loading 3MF - no 3MF document found: ', modelPart );
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}
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var modelNode = xmlData.querySelector( 'model' );
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var extensions = {};
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for ( var i = 0; i < modelNode.attributes.length; i ++ ) {
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var attr = modelNode.attributes[ i ];
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if ( attr.name.match( /^xmlns:(.+)$/ ) ) {
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extensions[ attr.value ] = RegExp.$1;
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}
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}
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var modelData = parseModelNode( modelNode );
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modelData[ 'xml' ] = modelNode;
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if ( 0 < Object.keys( extensions ).length ) {
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modelData[ 'extensions' ] = extensions;
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}
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modelParts[ modelPart ] = modelData;
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}
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for ( var i = 0; i < texturesPartNames.length; i ++ ) {
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var texturesPartName = texturesPartNames[ i ];
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texturesParts[ texturesPartName ] = zip.file( texturesPartName ).asBinary();
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}
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return {
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rels: rels,
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model: modelParts,
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printTicket: printTicketParts,
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texture: texturesParts,
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other: otherParts
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};
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}
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function parseRelsXml( relsFileText ) {
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var relsXmlData = new DOMParser().parseFromString( relsFileText, 'application/xml' );
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var relsNode = relsXmlData.querySelector( 'Relationship' );
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var target = relsNode.getAttribute( 'Target' );
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var id = relsNode.getAttribute( 'Id' );
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var type = relsNode.getAttribute( 'Type' );
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return {
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target: target,
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id: id,
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type: type
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};
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}
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function parseMetadataNodes( metadataNodes ) {
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var metadataData = {};
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for ( var i = 0; i < metadataNodes.length; i ++ ) {
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var metadataNode = metadataNodes[ i ];
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var name = metadataNode.getAttribute( 'name' );
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var validNames = [
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'Title',
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'Designer',
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'Description',
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'Copyright',
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'LicenseTerms',
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'Rating',
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'CreationDate',
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'ModificationDate'
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];
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if ( 0 <= validNames.indexOf( name ) ) {
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metadataData[ name ] = metadataNode.textContent;
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}
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}
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return metadataData;
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}
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function parseBasematerialsNode( basematerialsNode ) {
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}
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function parseMeshNode( meshNode, extensions ) {
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var meshData = {};
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var vertices = [];
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var vertexNodes = meshNode.querySelectorAll( 'vertices vertex' );
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for ( var i = 0; i < vertexNodes.length; i ++ ) {
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var vertexNode = vertexNodes[ i ];
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var x = vertexNode.getAttribute( 'x' );
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var y = vertexNode.getAttribute( 'y' );
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var z = vertexNode.getAttribute( 'z' );
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vertices.push( parseFloat( x ), parseFloat( y ), parseFloat( z ) );
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}
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meshData[ 'vertices' ] = new Float32Array( vertices.length );
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for ( var i = 0; i < vertices.length; i ++ ) {
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meshData[ 'vertices' ][ i ] = vertices[ i ];
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}
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var triangleProperties = [];
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var triangles = [];
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var triangleNodes = meshNode.querySelectorAll( 'triangles triangle' );
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for ( var i = 0; i < triangleNodes.length; i ++ ) {
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var triangleNode = triangleNodes[ i ];
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var v1 = triangleNode.getAttribute( 'v1' );
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var v2 = triangleNode.getAttribute( 'v2' );
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var v3 = triangleNode.getAttribute( 'v3' );
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var p1 = triangleNode.getAttribute( 'p1' );
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var p2 = triangleNode.getAttribute( 'p2' );
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var p3 = triangleNode.getAttribute( 'p3' );
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var pid = triangleNode.getAttribute( 'pid' );
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triangles.push( parseInt( v1, 10 ), parseInt( v2, 10 ), parseInt( v3, 10 ) );
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var triangleProperty = {};
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if ( p1 ) {
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triangleProperty[ 'p1' ] = parseInt( p1, 10 );
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}
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if ( p2 ) {
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triangleProperty[ 'p2' ] = parseInt( p2, 10 );
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}
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if ( p3 ) {
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triangleProperty[ 'p3' ] = parseInt( p3, 10 );
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}
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if ( pid ) {
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triangleProperty[ 'pid' ] = pid;
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}
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if ( 0 < Object.keys( triangleProperty ).length ) {
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triangleProperties.push( triangleProperty );
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}
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}
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meshData[ 'triangleProperties' ] = triangleProperties;
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meshData[ 'triangles' ] = new Uint32Array( triangles.length );
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for ( var i = 0; i < triangles.length; i ++ ) {
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meshData[ 'triangles' ][ i ] = triangles[ i ];
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}
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return meshData;
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}
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function parseComponentsNode( componentsNode ) {
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}
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function parseObjectNode( objectNode ) {
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var objectData = {
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type: objectNode.getAttribute( 'type' )
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};
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var id = objectNode.getAttribute( 'id' );
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if ( id ) {
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objectData[ 'id' ] = id;
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}
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var pid = objectNode.getAttribute( 'pid' );
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if ( pid ) {
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objectData[ 'pid' ] = pid;
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}
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var pindex = objectNode.getAttribute( 'pindex' );
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if ( pindex ) {
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objectData[ 'pindex' ] = pindex;
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}
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var thumbnail = objectNode.getAttribute( 'thumbnail' );
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if ( thumbnail ) {
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objectData[ 'thumbnail' ] = thumbnail;
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}
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var partnumber = objectNode.getAttribute( 'partnumber' );
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if ( partnumber ) {
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objectData[ 'partnumber' ] = partnumber;
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}
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var name = objectNode.getAttribute( 'name' );
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if ( name ) {
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objectData[ 'name' ] = name;
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}
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var meshNode = objectNode.querySelector( 'mesh' );
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if ( meshNode ) {
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objectData[ 'mesh' ] = parseMeshNode( meshNode );
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}
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var componentsNode = objectNode.querySelector( 'components' );
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if ( componentsNode ) {
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objectData[ 'components' ] = parseComponentsNode( componentsNode );
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}
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return objectData;
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}
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function parseResourcesNode( resourcesNode ) {
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var resourcesData = {};
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var basematerialsNode = resourcesNode.querySelector( 'basematerials' );
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if ( basematerialsNode ) {
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resourcesData[ 'basematerial' ] = parseBasematerialsNode( basematerialsNode );
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}
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resourcesData[ 'object' ] = {};
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var objectNodes = resourcesNode.querySelectorAll( 'object' );
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for ( var i = 0; i < objectNodes.length; i ++ ) {
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var objectNode = objectNodes[ i ];
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var objectData = parseObjectNode( objectNode );
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resourcesData[ 'object' ][ objectData[ 'id' ] ] = objectData;
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}
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return resourcesData;
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}
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function parseBuildNode( buildNode ) {
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var buildData = [];
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var itemNodes = buildNode.querySelectorAll( 'item' );
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for ( var i = 0; i < itemNodes.length; i ++ ) {
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var itemNode = itemNodes[ i ];
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var buildItem = {
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objectid: itemNode.getAttribute( 'objectid' )
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};
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var transform = itemNode.getAttribute( 'transform' );
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if ( transform ) {
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var t = [];
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transform.split( ' ' ).forEach( function ( s ) {
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t.push( parseFloat( s ) );
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} );
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var mat4 = new THREE.Matrix4();
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buildItem[ 'transform' ] = mat4.set(
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t[ 0 ], t[ 3 ], t[ 6 ], t[ 9 ],
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t[ 1 ], t[ 4 ], t[ 7 ], t[ 10 ],
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t[ 2 ], t[ 5 ], t[ 8 ], t[ 11 ],
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0.0, 0.0, 0.0, 1.0
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);
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}
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buildData.push( buildItem );
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}
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return buildData;
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}
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function parseModelNode( modelNode ) {
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var modelData = { unit: modelNode.getAttribute( 'unit' ) || 'millimeter' };
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var metadataNodes = modelNode.querySelectorAll( 'metadata' );
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if ( metadataNodes ) {
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modelData[ 'metadata' ] = parseMetadataNodes( metadataNodes );
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}
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var resourcesNode = modelNode.querySelector( 'resources' );
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if ( resourcesNode ) {
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modelData[ 'resources' ] = parseResourcesNode( resourcesNode );
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}
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var buildNode = modelNode.querySelector( 'build' );
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if ( buildNode ) {
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modelData[ 'build' ] = parseBuildNode( buildNode );
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}
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return modelData;
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}
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function buildMesh( meshData, data3mf ) {
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var geometry = new THREE.BufferGeometry();
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geometry.setIndex( new THREE.BufferAttribute( meshData[ 'triangles' ], 1 ) );
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geometry.addAttribute( 'position', new THREE.BufferAttribute( meshData[ 'vertices' ], 3 ) );
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if ( meshData[ 'colors' ] ) {
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geometry.addAttribute( 'color', new THREE.BufferAttribute( meshData[ 'colors' ], 3 ) );
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}
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geometry.computeBoundingSphere();
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var materialOpts = {
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flatShading: true
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};
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if ( meshData[ 'colors' ] && 0 < meshData[ 'colors' ].length ) {
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materialOpts[ 'vertexColors' ] = THREE.VertexColors;
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} else {
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materialOpts[ 'color' ] = 0xaaaaff;
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}
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var material = new THREE.MeshPhongMaterial( materialOpts );
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return new THREE.Mesh( geometry, material );
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}
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function applyExtensions( extensions, meshData, modelXml, data3mf ) {
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if ( ! extensions ) {
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return;
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}
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var availableExtensions = [];
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var keys = Object.keys( extensions );
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for ( var i = 0; i < keys.length; i ++ ) {
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var ns = keys[ i ];
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for ( var j = 0; j < scope.availableExtensions.length; j ++ ) {
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var extension = scope.availableExtensions[ j ];
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if ( extension.ns === ns ) {
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availableExtensions.push( extension );
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}
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}
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}
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for ( var i = 0; i < availableExtensions.length; i ++ ) {
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var extension = availableExtensions[ i ];
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extension.apply( modelXml, extensions[ extension[ 'ns' ] ], meshData );
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}
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}
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function buildMeshes( data3mf ) {
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var modelsData = data3mf.model;
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var meshes = {};
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var modelsKeys = Object.keys( modelsData );
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for ( var i = 0; i < modelsKeys.length; i ++ ) {
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var modelsKey = modelsKeys[ i ];
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var modelData = modelsData[ modelsKey ];
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var modelXml = modelData[ 'xml' ];
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var extensions = modelData[ 'extensions' ];
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var objectIds = Object.keys( modelData[ 'resources' ][ 'object' ] );
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for ( var j = 0; j < objectIds.length; j ++ ) {
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var objectId = objectIds[ j ];
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var objectData = modelData[ 'resources' ][ 'object' ][ objectId ];
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var meshData = objectData[ 'mesh' ];
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applyExtensions( extensions, meshData, modelXml, data3mf );
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meshes[ objectId ] = buildMesh( meshData, data3mf );
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}
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}
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return meshes;
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}
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function build( meshes, refs, data3mf ) {
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var group = new THREE.Group();
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var buildData = data3mf.model[ refs[ 'target' ].substring( 1 ) ][ 'build' ];
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for ( var i = 0; i < buildData.length; i ++ ) {
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var buildItem = buildData[ i ];
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var mesh = meshes[ buildItem[ 'objectid' ] ];
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if ( buildItem[ 'transform' ] ) {
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mesh.geometry.applyMatrix( buildItem[ 'transform' ] );
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}
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group.add( mesh );
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}
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return group;
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}
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var data3mf = loadDocument( data );
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var meshes = buildMeshes( data3mf );
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return build( meshes, data3mf[ 'rels' ], data3mf );
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},
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addExtension: function ( extension ) {
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this.availableExtensions.push( extension );
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}
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};
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