Doodle3D-Slicer/three.js-master/editor/js/Loader.js
2015-06-12 15:58:26 +02:00

442 lines
8.4 KiB
JavaScript
Executable File

/**
* @author mrdoob / http://mrdoob.com/
*/
var Loader = function ( editor ) {
var scope = this;
var signals = editor.signals;
this.loadFile = function ( file ) {
var filename = file.name;
var extension = filename.split( '.' ).pop().toLowerCase();
switch ( extension ) {
case 'awd':
var reader = new FileReader();
reader.addEventListener( 'load', function ( event ) {
var loader = new THREE.AWDLoader();
var scene = loader.parse( event.target.result );
editor.setScene( scene );
}, false );
reader.readAsArrayBuffer( file );
break;
case 'babylon':
var reader = new FileReader();
reader.addEventListener( 'load', function ( event ) {
var contents = event.target.result;
var json = JSON.parse( contents );
var loader = new THREE.BabylonLoader();
var scene = loader.parse( json );
editor.setScene( scene );
}, false );
reader.readAsText( file );
break;
case 'babylonmeshdata':
var reader = new FileReader();
reader.addEventListener( 'load', function ( event ) {
var contents = event.target.result;
var json = JSON.parse( contents );
var loader = new THREE.BabylonLoader();
var geometry = loader.parseGeometry( json );
var material = new THREE.MeshPhongMaterial();
var mesh = new THREE.Mesh( geometry, material );
mesh.name = filename;
editor.addObject( mesh );
editor.select( mesh );
}, false );
reader.readAsText( file );
break;
case 'ctm':
var reader = new FileReader();
reader.addEventListener( 'load', function ( event ) {
var data = new Uint8Array( event.target.result );
var stream = new CTM.Stream( data );
stream.offset = 0;
var loader = new THREE.CTMLoader();
loader.createModel( new CTM.File( stream ), function( geometry ) {
geometry.sourceType = "ctm";
geometry.sourceFile = file.name;
var material = new THREE.MeshPhongMaterial();
var mesh = new THREE.Mesh( geometry, material );
mesh.name = filename;
editor.addObject( mesh );
editor.select( mesh );
} );
}, false );
reader.readAsArrayBuffer( file );
break;
case 'dae':
var reader = new FileReader();
reader.addEventListener( 'load', function ( event ) {
var contents = event.target.result;
var parser = new DOMParser();
var xml = parser.parseFromString( contents, 'text/xml' );
var loader = new THREE.ColladaLoader();
loader.parse( xml, function ( collada ) {
collada.scene.name = filename;
editor.addObject( collada.scene );
editor.select( collada.scene );
} );
}, false );
reader.readAsText( file );
break;
case 'js':
case 'json':
case '3geo':
case '3mat':
case '3obj':
case '3scn':
var reader = new FileReader();
reader.addEventListener( 'load', function ( event ) {
var contents = event.target.result;
// 2.0
if ( contents.indexOf( 'postMessage' ) !== -1 ) {
var blob = new Blob( [ contents ], { type: 'text/javascript' } );
var url = URL.createObjectURL( blob );
var worker = new Worker( url );
worker.onmessage = function ( event ) {
event.data.metadata = { version: 2 };
handleJSON( event.data, file, filename );
};
worker.postMessage( Date.now() );
return;
}
// >= 3.0
var data;
try {
data = JSON.parse( contents );
} catch ( error ) {
alert( error );
return;
}
handleJSON( data, file, filename );
}, false );
reader.readAsText( file );
break;
case 'obj':
var reader = new FileReader();
reader.addEventListener( 'load', function ( event ) {
var contents = event.target.result;
var object = new THREE.OBJLoader().parse( contents );
object.name = filename;
editor.addObject( object );
editor.select( object );
}, false );
reader.readAsText( file );
break;
case 'ply':
var reader = new FileReader();
reader.addEventListener( 'load', function ( event ) {
var contents = event.target.result;
var geometry = new THREE.PLYLoader().parse( contents );
geometry.sourceType = "ply";
geometry.sourceFile = file.name;
var material = new THREE.MeshPhongMaterial();
var mesh = new THREE.Mesh( geometry, material );
mesh.name = filename;
editor.addObject( mesh );
editor.select( mesh );
}, false );
reader.readAsText( file );
break;
case 'stl':
var reader = new FileReader();
reader.addEventListener( 'load', function ( event ) {
var contents = event.target.result;
var geometry = new THREE.STLLoader().parse( contents );
geometry.sourceType = "stl";
geometry.sourceFile = file.name;
var material = new THREE.MeshPhongMaterial();
var mesh = new THREE.Mesh( geometry, material );
mesh.name = filename;
editor.addObject( mesh );
editor.select( mesh );
}, false );
if ( reader.readAsBinaryString !== undefined ) {
reader.readAsBinaryString( file );
} else {
reader.readAsArrayBuffer( file );
}
break;
/*
case 'utf8':
var reader = new FileReader();
reader.addEventListener( 'load', function ( event ) {
var contents = event.target.result;
var geometry = new THREE.UTF8Loader().parse( contents );
var material = new THREE.MeshLambertMaterial();
var mesh = new THREE.Mesh( geometry, material );
editor.addObject( mesh );
editor.select( mesh );
}, false );
reader.readAsBinaryString( file );
break;
*/
case 'vtk':
var reader = new FileReader();
reader.addEventListener( 'load', function ( event ) {
var contents = event.target.result;
var geometry = new THREE.VTKLoader().parse( contents );
geometry.sourceType = "vtk";
geometry.sourceFile = file.name;
var material = new THREE.MeshPhongMaterial();
var mesh = new THREE.Mesh( geometry, material );
mesh.name = filename;
editor.addObject( mesh );
editor.select( mesh );
}, false );
reader.readAsText( file );
break;
case 'wrl':
var reader = new FileReader();
reader.addEventListener( 'load', function ( event ) {
var contents = event.target.result;
var result = new THREE.VRMLLoader().parse( contents );
editor.setScene( result );
}, false );
reader.readAsText( file );
break;
default:
alert( 'Unsupported file format (' + extension + ').' );
break;
}
}
var handleJSON = function ( data, file, filename ) {
if ( data.metadata === undefined ) { // 2.0
data.metadata = { type: 'Geometry' };
}
if ( data.metadata.type === undefined ) { // 3.0
data.metadata.type = 'Geometry';
}
if ( data.metadata.version === undefined ) {
data.metadata.version = data.metadata.formatVersion;
}
if ( data.metadata.type === 'BufferGeometry' ) {
var loader = new THREE.BufferGeometryLoader();
var result = loader.parse( data );
var mesh = new THREE.Mesh( result );
editor.addObject( mesh );
editor.select( mesh );
} else if ( data.metadata.type.toLowerCase() === 'geometry' ) {
var loader = new THREE.JSONLoader();
var result = loader.parse( data );
var geometry = result.geometry;
var material;
if ( result.materials !== undefined ) {
if ( result.materials.length > 1 ) {
material = new THREE.MeshFaceMaterial( result.materials );
} else {
material = result.materials[ 0 ];
}
} else {
material = new THREE.MeshPhongMaterial();
}
geometry.sourceType = "ascii";
geometry.sourceFile = file.name;
var mesh;
if ( geometry.animation && geometry.animation.hierarchy ) {
mesh = new THREE.SkinnedMesh( geometry, material );
} else {
mesh = new THREE.Mesh( geometry, material );
}
mesh.name = filename;
editor.addObject( mesh );
editor.select( mesh );
} else if ( data.metadata.type.toLowerCase() === 'object' ) {
var loader = new THREE.ObjectLoader();
var result = loader.parse( data );
if ( result instanceof THREE.Scene ) {
editor.setScene( result );
} else {
editor.addObject( result );
editor.select( result );
}
} else if ( data.metadata.type.toLowerCase() === 'scene' ) {
// DEPRECATED
var loader = new THREE.SceneLoader();
loader.parse( data, function ( result ) {
editor.setScene( result.scene );
}, '' );
}
};
}