/* * @(#)ObjLoad.java 1.16 01/02/23 14:17:39 * * Copyright (c) 1996-2001 Sun Microsystems, Inc. All Rights Reserved. * * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use, * modify and redistribute this software in source and binary code form, * provided that i) this copyright notice and license appear on all copies of * the software; and ii) Licensee does not utilize the software in a manner * which is disparaging to Sun. * * This software is provided "AS IS," without a warranty of any kind. ALL * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS * LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF * OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. * * This software is not designed or intended for use in on-line control of * aircraft, air traffic, aircraft navigation or aircraft communications; or in * the design, construction, operation or maintenance of any nuclear * facility. Licensee represents and warrants that it will not use or * redistribute the Software for such purposes. */ /* * Adapted by Carlos Pedrinaci Godoy (UPV/EHU) */ import com.sun.j3d.loaders.objectfile.ObjectFile; import com.sun.j3d.loaders.ParsingErrorException; import com.sun.j3d.loaders.IncorrectFormatException; import com.sun.j3d.loaders.Scene; import java.applet.Applet; import java.awt.*; import java.awt.event.*; import com.sun.j3d.utils.applet.MainFrame; import com.sun.j3d.utils.universe.*; import javax.media.j3d.*; // Added for stl_loader test import stl_loader.StlFile; import javax.vecmath.*; import java.io.*; import com.sun.j3d.utils.behaviors.vp.*; public class ObjLoad extends Applet { private boolean spin = false; private boolean noTriangulate = false; private boolean noStripify = false; private double creaseAngle = 60.0; private String filename = null; private SimpleUniverse u; public BranchGroup createSceneGraph(String args[]) { // Create the root of the branch graph BranchGroup objRoot = new BranchGroup(); // Create a Transformgroup to scale all objects so they // appear in the scene. TransformGroup objScale = new TransformGroup(); Transform3D t3d = new Transform3D(); t3d.setScale(0.2); objScale.setTransform(t3d); objRoot.addChild(objScale); // Create the transform group node and initialize it to the // identity. Enable the TRANSFORM_WRITE capability so that // our behavior code can modify it at runtime. Add it to the // root of the subgraph. TransformGroup objTrans = new TransformGroup(); objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ); objScale.addChild(objTrans); // Modified by Carlos /* int flags = ObjectFile.RESIZE; if (!noTriangulate) flags |= ObjectFile.TRIANGULATE; if (!noStripify) flags |= ObjectFile.STRIPIFY; */ // ObjectFile f = new ObjectFile(flags, // (float)(creaseAngle * Math.PI / 180.0)); StlFile f = new StlFile(); Scene s = null; try { s = f.load(filename); } catch (FileNotFoundException e) { System.err.println(e); System.exit(1); } catch (ParsingErrorException e) { System.err.println(e); System.exit(1); } catch (IncorrectFormatException e) { System.err.println(e); System.exit(1); } objTrans.addChild(s.getSceneGroup()); BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0); if (spin) { Transform3D yAxis = new Transform3D(); Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE, 0, 0, 4000, 0, 0, 0, 0, 0); RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, objTrans, yAxis, 0.0f, (float) Math.PI*2.0f); rotator.setSchedulingBounds(bounds); objTrans.addChild(rotator); } // Set up the background Color3f bgColor = new Color3f(0.05f, 0.05f, 0.5f); Background bgNode = new Background(bgColor); bgNode.setApplicationBounds(bounds); objRoot.addChild(bgNode); // Set up the ambient light Color3f ambientColor = new Color3f(0.1f, 0.1f, 0.1f); AmbientLight ambientLightNode = new AmbientLight(ambientColor); ambientLightNode.setInfluencingBounds(bounds); objRoot.addChild(ambientLightNode); // Set up the directional lights Color3f light1Color = new Color3f(0.5f, 0.5f, 0.5f); Vector3f light1Direction = new Vector3f(1.0f, 1.0f, 1.0f); Color3f light2Color = new Color3f(0.5f, 0.5f, 0.5f); Vector3f light2Direction = new Vector3f(-1.0f, -1.0f, -1.0f); DirectionalLight light1 = new DirectionalLight(light1Color, light1Direction); light1.setInfluencingBounds(bounds); objRoot.addChild(light1); DirectionalLight light2 = new DirectionalLight(light2Color, light2Direction); light2.setInfluencingBounds(bounds); objRoot.addChild(light2); return objRoot; } private void usage() { System.out.println( "Usage: java ObjLoad [-s] [-n] [-t] [-c degrees] <.obj file>"); System.out.println(" -s Spin (no user interaction)"); System.out.println(" -n No triangulation"); System.out.println(" -t No stripification"); System.out.println( " -c Set crease angle for normal generation (default is 60 without"); System.out.println( " smoothing group info, otherwise 180 within smoothing groups)"); System.exit(0); } // End of usage public ObjLoad(String args[]) { if (args.length == 0) { usage(); } else { for (int i = 0 ; i < args.length ; i++) { if (args[i].startsWith("-")) { if (args[i].equals("-s")) { spin = true; } else if (args[i].equals("-n")) { noTriangulate = true; } else if (args[i].equals("-t")) { noStripify = true; } else if (args[i].equals("-c")) { if (i < args.length - 1) { creaseAngle = (new Double(args[++i])).doubleValue(); } else usage(); } else { System.err.println("Argument '" + args[i] + "' ignored."); } } else { filename = args[i]; } } } if (filename == null) { usage(); } setLayout(new BorderLayout()); GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration(); Canvas3D c = new Canvas3D(config); add("Center", c); // Create a simple scene and attach it to the virtual universe BranchGroup scene = createSceneGraph(args); u = new SimpleUniverse(c); // add mouse behaviors to the ViewingPlatform ViewingPlatform viewingPlatform = u.getViewingPlatform(); // This will move the ViewPlatform back a bit so the // objects in the scene can be viewed. viewingPlatform.setNominalViewingTransform(); if (!spin) { OrbitBehavior orbit = new OrbitBehavior(c, OrbitBehavior.REVERSE_ALL); BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0); orbit.setSchedulingBounds(bounds); viewingPlatform.setViewPlatformBehavior(orbit); } u.addBranchGraph(scene); } public void destroy() { u.removeAllLocales(); } // // The following allows ObjLoad to be run as an application // as well as an applet // public static void main(String[] args) { new MainFrame(new ObjLoad(args), 700, 700); // The arguments are useless for that version } }