mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-08-23 05:40:44 +02:00
75 lines
1.4 KiB
JavaScript
75 lines
1.4 KiB
JavaScript
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/**
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* @author kovacsv / http://kovacsv.hu/
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* @author mrdoob / http://mrdoob.com/
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*/
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THREE.STLExporter = function () {};
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THREE.STLExporter.prototype = {
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constructor: THREE.STLExporter,
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parse: ( function () {
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var vector = new THREE.Vector3();
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var normalMatrixWorld = new THREE.Matrix3();
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return function ( scene ) {
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var output = '';
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output += 'solid exported\n';
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scene.traverse( function ( object ) {
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if ( object instanceof THREE.Mesh ) {
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var geometry = object.geometry;
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var matrixWorld = object.matrixWorld;
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if ( geometry instanceof THREE.Geometry ) {
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var vertices = geometry.vertices;
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var faces = geometry.faces;
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normalMatrixWorld.getNormalMatrix( matrixWorld );
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for ( var i = 0, l = faces.length; i < l; i ++ ) {
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var face = faces[ i ];
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vector.copy( face.normal ).applyMatrix3( normalMatrixWorld ).normalize();
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output += '\tfacet normal ' + vector.x + ' ' + vector.y + ' ' + vector.z + '\n';
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output += '\t\touter loop\n';
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var indices = [ face.a, face.b, face.c ];
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for ( var j = 0; j < 3; j ++ ) {
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vector.copy( vertices[ indices[ j ] ] ).applyMatrix4( matrixWorld );
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output += '\t\t\tvertex ' + vector.x + ' ' + vector.y + ' ' + vector.z + '\n';
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}
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output += '\t\tendloop\n';
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output += '\tendfacet\n';
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}
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}
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}
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} );
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output += 'endsolid exported\n';
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return output;
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};
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}() )
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};
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