STLBinaryExporter

examples/js/exporters/STLBinaryExporter.js

@@ -0,0 +1,79 @@
+/**
+ * @author kovacsv / http://kovacsv.hu/
+ * @author mrdoob / http://mrdoob.com/
+ * @author mudcube / http://mudcu.be/
+ */
+ 
+THREE.STLBinaryExporter = function () {};
+
+THREE.STLBinaryExporter.prototype = {
+
+	constructor: THREE.STLBinaryExporter,
+
+	parse: ( function () {
+
+		var vector = new THREE.Vector3();
+		var normalMatrixWorld = new THREE.Matrix3();
+
+		return function ( scene ) {
+
+			var triangles = 0;
+			scene.traverse( function ( object ) {
+				if ( !(object instanceof THREE.Mesh) ) return;
+				triangles += object.geometry.faces.length;
+			});
+
+			var offset = 80; // skip header
+			var bufferLength = triangles * 2 + triangles * 3 * 4 * 4 + 80 + 4;
+			var arrayBuffer = new ArrayBuffer(bufferLength);
+			var output = new DataView(arrayBuffer);
+			output.setUint32(offset, triangles, true); offset += 4;
+
+			scene.traverse( function ( object ) {
+
+				if ( !(object instanceof THREE.Mesh) ) return;
+				if ( !(object.geometry instanceof THREE.Geometry )) return;
+
+				var geometry = object.geometry;
+				var matrixWorld = object.matrixWorld;
+
+				var vertices = geometry.vertices;
+				var faces = geometry.faces;
+
+				normalMatrixWorld.getNormalMatrix( matrixWorld );
+
+				for ( var i = 0, l = faces.length; i < l; i ++ ) {
+
+					var face = faces[ i ];
+
+					vector.copy( face.normal ).applyMatrix3( normalMatrixWorld ).normalize();
+
+					output.setFloat32(offset, vector.x, true); offset += 4; // normal
+					output.setFloat32(offset, vector.y, true); offset += 4;
+					output.setFloat32(offset, vector.z, true); offset += 4;
+
+					var indices = [ face.a, face.b, face.c ];
+
+					for ( var j = 0; j < 3; j ++ ) {
+
+						vector.copy( vertices[ indices[ j ] ] ).applyMatrix4( matrixWorld );
+
+						output.setFloat32(offset, vector.x, true); offset += 4; // vertices
+						output.setFloat32(offset, vector.y, true); offset += 4;
+						output.setFloat32(offset, vector.z, true); offset += 4;
+
+					}
+
+					output.setUint16(offset, 0, true); offset += 2; // attribute byte count					
+
+				}
+
+			} );
+			
+			return output;
+
+		};
+
+	}() )
+
+};

examples/js/exporters/STLExporter.js

@@ -1,7 +1,6 @@
 /**
  * @author kovacsv / http://kovacsv.hu/
  * @author mrdoob / http://mrdoob.com/
- * @author mudcube / http://mudcu.be/
  */
  
 THREE.STLExporter = function () {};
@@ -15,92 +14,57 @@ THREE.STLExporter.prototype = {
 		var vector = new THREE.Vector3();
 		var normalMatrixWorld = new THREE.Matrix3();
 
-		return function ( scene, encodeBinary ) {
+		return function ( scene ) {
 
-			if ( encodeBinary ) {
-				var triangles = 0;
-				scene.traverse( function ( object ) {
-					if ( !(object instanceof THREE.Mesh) ) return;
-					triangles += object.geometry.faces.length;
-				});
+			var output = '';
 
-				var offset = 80; // skip header
-				var bufferLength = triangles * 2 + triangles * 3 * 4 * 4 + 80 + 4;
-				var arrayBuffer = new ArrayBuffer(bufferLength);
-				var output = new DataView(arrayBuffer);
-				output.setUint32(offset, triangles, true); offset += 4;
-			} else {
-				var output = 'solid exported\n';
-			}
+			output += 'solid exported\n';
 
 			scene.traverse( function ( object ) {
 
-				if ( !(object instanceof THREE.Mesh) ) return;
-				if ( !(object.geometry instanceof THREE.Geometry )) return;
+				if ( object instanceof THREE.Mesh ) {
 
-				var geometry = object.geometry;
-				var matrixWorld = object.matrixWorld;
+					var geometry = object.geometry;
+					var matrixWorld = object.matrixWorld;
 
-				var vertices = geometry.vertices;
-				var faces = geometry.faces;
+					if ( geometry instanceof THREE.Geometry ) {
 
-				normalMatrixWorld.getNormalMatrix( matrixWorld );
+						var vertices = geometry.vertices;
+						var faces = geometry.faces;
 
-				for ( var i = 0, l = faces.length; i < l; i ++ ) {
+						normalMatrixWorld.getNormalMatrix( matrixWorld );
 
-					var face = faces[ i ];
+						for ( var i = 0, l = faces.length; i < l; i ++ ) {
 
-					vector.copy( face.normal ).applyMatrix3( normalMatrixWorld ).normalize();
+							var face = faces[ i ];
 
-					if ( encodeBinary ) {
+							vector.copy( face.normal ).applyMatrix3( normalMatrixWorld ).normalize();
 
-						output.setFloat32(offset, vector.x, true); offset += 4; // normal
-						output.setFloat32(offset, vector.y, true); offset += 4;
-						output.setFloat32(offset, vector.z, true); offset += 4;
+							output += '\tfacet normal ' + vector.x + ' ' + vector.y + ' ' + vector.z + '\n';
+							output += '\t\touter loop\n';
 
-					} else {
+							var indices = [ face.a, face.b, face.c ];
 
-						output += '\tfacet normal ' + vector.x + ' ' + vector.y + ' ' + vector.z + '\n';
-						output += '\t\touter loop\n';
+							for ( var j = 0; j < 3; j ++ ) {
 
-					}
-
-					var indices = [ face.a, face.b, face.c ];
-
-					for ( var j = 0; j < 3; j ++ ) {
+								vector.copy( vertices[ indices[ j ] ] ).applyMatrix4( matrixWorld );
 
-						vector.copy( vertices[ indices[ j ] ] ).applyMatrix4( matrixWorld );
+								output += '\t\t\tvertex ' + vector.x + ' ' + vector.y + ' ' + vector.z + '\n';
 
-						if ( encodeBinary ) {
+							}
 
-							output.setFloat32(offset, vector.x, true); offset += 4; // vertices
-							output.setFloat32(offset, vector.y, true); offset += 4;
-							output.setFloat32(offset, vector.z, true); offset += 4;
-
-						} else {
-
-							output += '\t\t\tvertex ' + vector.x + ' ' + vector.y + ' ' + vector.z + '\n';
+							output += '\t\tendloop\n';
+							output += '\tendfacet\n';
 
 						}
-					}
-
-					if ( encodeBinary ) {
-
-						output.setUint16(offset, 0, true); offset += 2; // attribute byte count					
-
-					} else {
-
-						output += '\t\tendloop\n';
-						output += '\tendfacet\n';
 
 					}
+
 				}
 
 			} );
-			
-			if ( !encodeBinary ) {
-				output += 'endsolid exported\n';
-			}
+
+			output += 'endsolid exported\n';
 
 			return output;