Java/3D/Cone

Cone Yoyo

/*
 * ConeYoyoApp.java 1.0 98/11/25
 * 
 * Copyright (c) 1998 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.
 */
/*
 * Getting Started with the Java 3D API written in Java 3D
 * 
 * This program demonstrates: 1. writing a visual object class In this program,
 * ConeYoyo class defines a visual object independent of all other classes. 2.
 * Using Cone to create surfaces.
 */
import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Frame;
import javax.media.j3d.Alpha;
import javax.media.j3d.Appearance;
import javax.media.j3d.BoundingSphere;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.RotationInterpolator;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.vecmath.Point3d;
import javax.vecmath.Vector3f;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.geometry.Cone;
import com.sun.j3d.utils.universe.SimpleUniverse;
public class ConeYoyoApp extends Applet {
  /////////////////////////////////////////////////
  //
  // create scene graph branch group
  //
  public class ConeYoyo {
    private BranchGroup yoyoBG;
    ////////////////////////////////////////////
    //
    // create Shape3D with geometry and appearance
    // the geometry is created in method yoyoGeometry
    // the appearance is created in method yoyoAppearance
    //
    public ConeYoyo() {
      yoyoBG = new BranchGroup();
      Appearance app = new Appearance();
      // rotate object has composited transformation matrix
      Transform3D rotate = new Transform3D();
      Transform3D translate = new Transform3D();
      translate.set(new Vector3f(0.1f, 0.0f, 0.0f));
      TransformGroup yoyoTGT1 = new TransformGroup(translate);
      yoyoBG.addChild(yoyoTGT1);
      rotate.rotZ(Math.PI / 2.0d);
      TransformGroup yoyoTGR1 = new TransformGroup(rotate);
      Cone cone1 = new Cone(0.6f, 0.2f);
      cone1.setAppearance(app);
      yoyoTGR1.addChild(cone1);
      yoyoTGT1.addChild(yoyoTGR1);
      translate.set(new Vector3f(-0.1f, 0.0f, 0.0f));
      TransformGroup yoyoTGT2 = new TransformGroup(translate);
      yoyoBG.addChild(yoyoTGT2);
      rotate.rotZ(-Math.PI / 2.0d);
      TransformGroup yoyoTGR2 = new TransformGroup(rotate);
      Cone cone2 = new Cone(0.6f, 0.2f);
      cone2.setAppearance(app);
      yoyoTGR2.addChild(cone2);
      yoyoTGT2.addChild(yoyoTGR2);
      yoyoBG.rupile();
    } // end of ConeYoyo constructor
    public BranchGroup getBG() {
      return yoyoBG;
    }
  } // end of class ConeYoyo
  /////////////////////////////////////////////////
  //
  // create scene graph branch group
  //
  public BranchGroup createSceneGraph() {
    BranchGroup objRoot = new BranchGroup();
    // 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 objSpin = new TransformGroup();
    objSpin.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    objRoot.addChild(objSpin);
    objSpin.addChild(new ConeYoyo().getBG());
    // Create a new Behavior object that will perform the desired
    // operation on the specified transform object and add it into
    // the scene graph.
    Transform3D yAxis = new Transform3D();
    Alpha rotationAlpha = new Alpha(-1, 4000);
    RotationInterpolator rotator = new RotationInterpolator(rotationAlpha,
        objSpin);
    BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0),
        100.0);
    rotator.setSchedulingBounds(bounds);
    objSpin.addChild(rotator);
    // Let Java 3D perform optimizations on this scene graph.
    objRoot.rupile();
    return objRoot;
  } // end of CreateSceneGraph method of yoyo1
  // Create a simple scene and attach it to the virtual universe
  public ConeYoyoApp() {
    setLayout(new BorderLayout());
    Canvas3D canvas3D = new Canvas3D(null);
    add("Center", canvas3D);
    BranchGroup scene = createSceneGraph();
    SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
    simpleU.getViewingPlatform().setNominalViewingTransform();
    simpleU.addBranchGraph(scene);
  } // end of ConeYoyoApp constructor
  //  The following allows this to be run as an application
  //  as well as an applet
  public static void main(String[] args) {
    Frame frame = new MainFrame(new ConeYoyoApp(), 256, 256);
  } // end of main method of coneyoyo
} // end of class ConeYoyoApp

Creates a cone using the utility class Cone

/*
Essential Java 3D Fast
Ian Palmer
Publisher: Springer-Verlag
ISBN: 1-85233-394-4
*/
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.media.j3d.Appearance;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.Locale;
import javax.media.j3d.Node;
import javax.media.j3d.PhysicalBody;
import javax.media.j3d.PhysicalEnvironment;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.media.j3d.View;
import javax.media.j3d.ViewPlatform;
import javax.media.j3d.VirtualUniverse;
import javax.vecmath.AxisAngle4d;
import javax.vecmath.Vector3f;
import com.sun.j3d.utils.geometry.Cone;
/**
 * Creates a cone using the utility class Cone.
 * 
 * @author I.J.Palmer
 * @version 1.0
 */
public class SimpleCone extends Frame implements ActionListener {
  protected Canvas3D myCanvas3D = new Canvas3D(null);
  protected Button myButton = new Button("Exit");
  /**
   * This function builds the view branch of the scene graph. It creates a
   * branch group and then creates the necessary view elements to give a
   * useful view of our content.
   * 
   * @param c
   *            Canvas3D that will display the view
   * @return BranchGroup that is the root of the view elements
   */
  protected BranchGroup buildViewBranch(Canvas3D c) {
    BranchGroup viewBranch = new BranchGroup();
    Transform3D viewXfm = new Transform3D();
    viewXfm.set(new Vector3f(0.0f, 0.0f, 5.0f));
    TransformGroup viewXfmGroup = new TransformGroup(viewXfm);
    ViewPlatform myViewPlatform = new ViewPlatform();
    PhysicalBody myBody = new PhysicalBody();
    PhysicalEnvironment myEnvironment = new PhysicalEnvironment();
    viewXfmGroup.addChild(myViewPlatform);
    viewBranch.addChild(viewXfmGroup);
    View myView = new View();
    myView.addCanvas3D(c);
    myView.attachViewPlatform(myViewPlatform);
    myView.setPhysicalBody(myBody);
    myView.setPhysicalEnvironment(myEnvironment);
    return viewBranch;
  }
  /**
   * This builds the content branch of our scene graph. It uses the buildShape
   * function to create the actual shape, adding to to the transform group so
   * that the shape is slightly tilted to reveal its 3D shape.
   * 
   * @param shape
   *            Node that represents the geometry for the content
   * @return BranchGroup that is the root of the content branch
   */
  protected BranchGroup buildContentBranch() {
    BranchGroup contentBranch = new BranchGroup();
    Transform3D rotateCube = new Transform3D();
    rotateCube.set(new AxisAngle4d(1.0, 1.0, 0.0, Math.PI / 4.0));
    TransformGroup rotationGroup = new TransformGroup(rotateCube);
    contentBranch.addChild(rotationGroup);
    rotationGroup.addChild(new Cone(1.0f, 2.0f, 0, new Appearance()));
    return contentBranch;
  }
  /**
   * This simply builds the shape using the Cone utility class.
   * 
   * @param Node
   *            that the is the Cone created
   */
  protected Node buildShape() {
    return new Cone(1.0f, 2.0f, Cone.GENERATE_NORMALS, new Appearance());
  }
  /**
   * Handles the exit button action to quit the program.
   */
  public void actionPerformed(ActionEvent e) {
    dispose();
    System.exit(0);
  }
  public SimpleCone() {
    VirtualUniverse myUniverse = new VirtualUniverse();
    Locale myLocale = new Locale(myUniverse);
    myLocale.addBranchGraph(buildViewBranch(myCanvas3D));
    myLocale.addBranchGraph(buildContentBranch());
    setTitle("SimpleWorld");
    setSize(400, 400);
    setLayout(new BorderLayout());
    add("Center", myCanvas3D);
    add("South", myButton);
    myButton.addActionListener(this);
    setVisible(true);
  }
  public static void main(String[] args) {
    SimpleCone sw = new SimpleCone();
  }
}