/* * @(#)MorphApp.java 1.0 99/03/25 11:42:40 * * Copyright (c) 1996-1999 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. */ import java.applet.Applet; import java.awt.BorderLayout; import java.awt.Frame; import com.sun.j3d.utils.applet.MainFrame; import com.sun.j3d.utils.universe.*; import javax.media.j3d.*; import javax.vecmath.*; import java.util.Enumeration; // MorphApp renders a single ColorCube // that rotates when any key is pressed. public class MorphApp extends Applet { public class MorphBehavior extends Behavior{ private Morph targetMorph; private Alpha alpha; // the following two members are here for effciency (no memory burn) private double[] weights = {0, 0, 0, 0}; private WakeupCondition trigger = new WakeupOnElapsedFrames(0); // create MorphBehavior MorphBehavior(Morph targetMorph, Alpha alpha){ this.targetMorph = targetMorph; this.alpha = alpha; } public void initialize(){ // set initial wakeup condition this.wakeupOn(trigger); } public void processStimulus(Enumeration criteria){ // don't need to decode event since there is only one trigger // do what is necessary weights[0] = 0; weights[1] = 0; weights[2] = 0; weights[3] = 0; float alphaValue = 4f * alpha.value() - 0.00001f; int alphaIndex = (int) alphaValue; weights[alphaIndex] = (double) alphaValue - (double)alphaIndex; if(alphaIndex < 3) weights[alphaIndex + 1] = 1.0 - weights[alphaIndex]; else weights[0] = 1.0 - weights[alphaIndex]; targetMorph.setWeights(weights); // set next wakeup condition this.wakeupOn(trigger); } } // end of class MorphBehavior public GeometryArray createGeomArray0(){ int[] counts = {7, 5, 2}; LineStripArray geom = new LineStripArray(14, GeometryArray.COORDINATES | GeometryArray.COLOR_3, counts); float[] coordinates = { 0.00f, 0.05f, 0f, -0.01f, 0.15f, 0f, 0.05f, 0.25f, 0f, 0.00f, 0.60f, 0f, 0.01f, 0.30f, 0f, 0.04f, 0.00f, 0f, 0.09f, 0.00f, 0f, 0.15f, 0.71f, 0f, -0.01f, 0.69f, 0f, 0.06f, 1.10f, 0f, -0.05f, 0.75f, 0f, 0.14f, 0.75f, 0f, 0.06f, 1.10f, 0f, 0.00f, 0.60f, 0f}; geom.setCoordinates(0, coordinates); // not setting the colors is the same as setting them to black // Color3f c = new Color3f(0f, 0f, 0f); // for (int i = 0; i < 14; i++) geom.setColor(i, c); return geom; } public GeometryArray createGeomArray1(){ int[] counts = {7, 5, 2}; LineStripArray geom = new LineStripArray(14, GeometryArray.COORDINATES | GeometryArray.COLOR_3, counts); float[] coordinates = { -0.10f, 0.00f, 0f, -0.15f, 0.08f, 0f, -0.05f, 0.30f, 0f, 0.00f, 0.60f, 0f, 0.15f, 0.30f, 0f, 0.10f, 0.00f, 0f, 0.15f, 0.05f, 0f, 0.05f, 0.70f, 0f, -0.05f, 0.80f, 0f, 0.06f, 1.10f, 0f, 0.05f, 0.70f, 0f, 0.20f, 0.80f, 0f, 0.06f, 1.10f, 0f, 0.00f, 0.60f, 0f}; geom.setCoordinates(0, coordinates); // not setting the colors is the same as setting them to black // Color3f c = new Color3f(0f, 0f, 0f); // for (int i = 0; i < 14; i++) geom.setColor(i, c); return geom; } public GeometryArray createGeomArray2(){ int[] counts = {7, 5, 2}; LineStripArray geom = new LineStripArray(14, GeometryArray.COORDINATES | GeometryArray.COLOR_3, counts); float[] coordinates = { 0.09f, 0.00f, 0f, 0.04f, 0.00f, 0f, 0.01f, 0.30f, 0f, 0.00f, 0.60f, 0f, 0.05f, 0.25f, 0f, -0.01f, 0.15f, 0f, 0.00f, 0.05f, 0f, 0.14f, 0.75f, 0f, -0.05f, 0.75f, 0f, 0.06f, 1.10f, 0f, -0.01f, 0.69f, 0f, 0.15f, 0.71f, 0f, 0.06f, 1.10f, 0f, 0.00f, 0.60f, 0f}; geom.setCoordinates(0, coordinates); // not setting the colors is the same as setting them to black // Color3f c = new Color3f(0f, 0f, 0f); // for (int i = 0; i < 14; i++) geom.setColor(i, c); return geom; } public GeometryArray createGeomArray3(){ int[] counts = {7, 5, 2}; LineStripArray geom = new LineStripArray(14, GeometryArray.COORDINATES | GeometryArray.COLOR_3, counts); float[] coordinates = { 0.15f, 0.05f, 0f, 0.10f, 0.00f, 0f, 0.15f, 0.30f, 0f, 0.00f, 0.60f, 0f, -0.05f, 0.30f, 0f, -0.15f, 0.08f, 0f, -0.10f, 0.00f, 0f, 0.20f, 0.80f, 0f, 0.05f, 0.70f, 0f, 0.06f, 1.10f, 0f, -0.05f, 0.80f, 0f, 0.05f, 0.70f, 0f, 0.06f, 1.10f, 0f, 0.00f, 0.60f, 0f}; geom.setCoordinates(0, coordinates); // not setting the colors is the same as setting them to black // Color3f c = new Color3f(0f, 0f, 0f); // for (int i = 0; i < 14; i++) geom.setColor(i, c); return geom; } public BranchGroup createSceneGraph() { // Create the root of the branch graph BranchGroup objRoot = new BranchGroup(); Transform3D t3d = new Transform3D(); t3d.set(new Vector3f(0f, -0.5f, 0f)); TransformGroup translate = new TransformGroup(t3d); // create GeometryArray[] (array of GeometryArray objects) GeometryArray[] geomArray = new GeometryArray[4]; geomArray[0] = createGeomArray0(); geomArray[1] = createGeomArray1(); geomArray[2] = createGeomArray2(); geomArray[3] = createGeomArray3(); // create morph object Morph morphObj = new Morph(geomArray); morphObj.setCapability(Morph.ALLOW_WEIGHTS_WRITE); // create alpha object Alpha alpha = new Alpha(-1, 1, 0, 0, 2000, 100, 0, 0, 0, 0); // create morph driving behavior MorphBehavior morphBehav = new MorphBehavior(morphObj, alpha); morphBehav.setSchedulingBounds(new BoundingSphere()); //assemble scene graph objRoot.addChild(translate); translate.addChild(morphObj); objRoot.addChild(morphBehav); Background background = new Background(); background.setColor(1f, 1f, 1f); background.setApplicationBounds(new BoundingSphere()); objRoot.addChild(background); // Let Java 3D perform optimizations on this scene graph. objRoot.compile(); return objRoot; } // end of CreateSceneGraph method of MorphApp // Create a simple scene and attach it to the virtual universe public MorphApp() { setLayout(new BorderLayout()); Canvas3D canvas3D = new Canvas3D(null); add("Center", canvas3D); BranchGroup scene = createSceneGraph(); // SimpleUniverse is a Convenience Utility class SimpleUniverse simpleU = new SimpleUniverse(canvas3D); // This will move the ViewPlatform back a bit so the // objects in the scene can be viewed. simpleU.getViewingPlatform().setNominalViewingTransform(); simpleU.addBranchGraph(scene); } // end of MorphApp (constructor) // The following allows this to be run as an application // as well as an applet public static void main(String[] args) { System.out.print("MorphApp.java \n- a demonstration of animation"); System.out.println("using the Morph class in a Java 3D scene."); System.out.println("This is a simple example progam from The Java 3D API Tutorial."); System.out.println("The Java 3D Tutorial is available on the web at:"); System.out.println("http://java.sun.com/products/java-media/3D/collateral"); Frame frame = new MainFrame(new MorphApp(), 256, 256); } // end of main (method of MorphApp) } // end of class MorphApp