mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-07-08 11:40:43 +02:00
84 lines
1.9 KiB
JavaScript
Executable File
84 lines
1.9 KiB
JavaScript
Executable File
/**
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* @author mrdoob / http://mrdoob.com/
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*/
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THREE.VTKLoader = function ( manager ) {
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this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
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};
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THREE.VTKLoader.prototype = {
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constructor: THREE.VTKLoader,
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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.XHRLoader( scope.manager );
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loader.setCrossOrigin( this.crossOrigin );
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loader.load( url, function ( text ) {
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onLoad( scope.parse( text ) );
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}, onProgress, onError );
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},
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parse: function ( data ) {
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var indices = [];
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var positions = [];
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var pattern, result;
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// float float float
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pattern = /([\+|\-]?[\d]+[\.][\d|\-|e]+)[ ]+([\+|\-]?[\d]+[\.][\d|\-|e]+)[ ]+([\+|\-]?[\d]+[\.][\d|\-|e]+)/g;
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while ( ( result = pattern.exec( data ) ) !== null ) {
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// ["1.0 2.0 3.0", "1.0", "2.0", "3.0"]
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positions.push( parseFloat( result[ 1 ] ), parseFloat( result[ 2 ] ), parseFloat( result[ 3 ] ) );
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}
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// 3 int int int
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pattern = /3[ ]+([\d]+)[ ]+([\d]+)[ ]+([\d]+)/g;
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while ( ( result = pattern.exec( data ) ) !== null ) {
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// ["3 1 2 3", "1", "2", "3"]
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indices.push( parseInt( result[ 1 ] ), parseInt( result[ 2 ] ), parseInt( result[ 3 ] ) );
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}
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// 4 int int int int
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pattern = /4[ ]+([\d]+)[ ]+([\d]+)[ ]+([\d]+)[ ]+([\d]+)/g;
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while ( ( result = pattern.exec( data ) ) !== null ) {
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// ["4 1 2 3 4", "1", "2", "3", "4"]
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indices.push( parseInt( result[ 1 ] ), parseInt( result[ 2 ] ), parseInt( result[ 4 ] ) );
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indices.push( parseInt( result[ 2 ] ), parseInt( result[ 3 ] ), parseInt( result[ 4 ] ) );
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}
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var geometry = new THREE.BufferGeometry();
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geometry.addAttribute( 'index', new THREE.BufferAttribute( new ( indices.length > 65535 ? Uint32Array : Uint16Array )( indices ), 1 ) );
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geometry.addAttribute( 'position', new THREE.BufferAttribute( new Float32Array( positions ), 3 ) );
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return geometry;
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}
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};
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THREE.EventDispatcher.prototype.apply( THREE.VTKLoader.prototype );
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