mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-08-24 22:20:45 +02:00
84 lines
1.9 KiB
JavaScript
84 lines
1.9 KiB
JavaScript
|
/**
|
||
|
* @author mrdoob / http://mrdoob.com/
|
||
|
*/
|
||
|
|
||
|
THREE.VTKLoader = function ( manager ) {
|
||
|
|
||
|
this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
|
||
|
|
||
|
};
|
||
|
|
||
|
THREE.VTKLoader.prototype = {
|
||
|
|
||
|
constructor: THREE.VTKLoader,
|
||
|
|
||
|
load: function ( url, onLoad, onProgress, onError ) {
|
||
|
|
||
|
var scope = this;
|
||
|
|
||
|
var loader = new THREE.XHRLoader( scope.manager );
|
||
|
loader.setCrossOrigin( this.crossOrigin );
|
||
|
loader.load( url, function ( text ) {
|
||
|
|
||
|
onLoad( scope.parse( text ) );
|
||
|
|
||
|
}, onProgress, onError );
|
||
|
|
||
|
},
|
||
|
|
||
|
parse: function ( data ) {
|
||
|
|
||
|
var indices = [];
|
||
|
var positions = [];
|
||
|
|
||
|
var pattern, result;
|
||
|
|
||
|
// float float float
|
||
|
|
||
|
pattern = /([\+|\-]?[\d]+[\.][\d|\-|e]+)[ ]+([\+|\-]?[\d]+[\.][\d|\-|e]+)[ ]+([\+|\-]?[\d]+[\.][\d|\-|e]+)/g;
|
||
|
|
||
|
while ( ( result = pattern.exec( data ) ) !== null ) {
|
||
|
|
||
|
// ["1.0 2.0 3.0", "1.0", "2.0", "3.0"]
|
||
|
|
||
|
positions.push( parseFloat( result[ 1 ] ), parseFloat( result[ 2 ] ), parseFloat( result[ 3 ] ) );
|
||
|
|
||
|
}
|
||
|
|
||
|
// 3 int int int
|
||
|
|
||
|
pattern = /3[ ]+([\d]+)[ ]+([\d]+)[ ]+([\d]+)/g;
|
||
|
|
||
|
while ( ( result = pattern.exec( data ) ) !== null ) {
|
||
|
|
||
|
// ["3 1 2 3", "1", "2", "3"]
|
||
|
|
||
|
indices.push( parseInt( result[ 1 ] ), parseInt( result[ 2 ] ), parseInt( result[ 3 ] ) );
|
||
|
|
||
|
}
|
||
|
|
||
|
// 4 int int int int
|
||
|
|
||
|
pattern = /4[ ]+([\d]+)[ ]+([\d]+)[ ]+([\d]+)[ ]+([\d]+)/g;
|
||
|
|
||
|
while ( ( result = pattern.exec( data ) ) !== null ) {
|
||
|
|
||
|
// ["4 1 2 3 4", "1", "2", "3", "4"]
|
||
|
|
||
|
indices.push( parseInt( result[ 1 ] ), parseInt( result[ 2 ] ), parseInt( result[ 4 ] ) );
|
||
|
indices.push( parseInt( result[ 2 ] ), parseInt( result[ 3 ] ), parseInt( result[ 4 ] ) );
|
||
|
|
||
|
}
|
||
|
|
||
|
var geometry = new THREE.BufferGeometry();
|
||
|
geometry.addAttribute( 'index', new THREE.BufferAttribute( new ( indices.length > 65535 ? Uint32Array : Uint16Array )( indices ), 1 ) );
|
||
|
geometry.addAttribute( 'position', new THREE.BufferAttribute( new Float32Array( positions ), 3 ) );
|
||
|
|
||
|
return geometry;
|
||
|
|
||
|
}
|
||
|
|
||
|
};
|
||
|
|
||
|
THREE.EventDispatcher.prototype.apply( THREE.VTKLoader.prototype );
|