/* * @(#)RotPosPathApp.java 1.0 99/07/01 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 com.sun.j3d.utils.geometry.ColorCube; import javax.media.j3d.*; import javax.vecmath.*; public class RotPosPathApp extends Applet { public BranchGroup createSceneGraph() { // Create the root of the branch graph BranchGroup objRoot = new BranchGroup(); Alpha alpha = new Alpha(-1, 7000); TransformGroup target = new TransformGroup(); Transform3D axisOfRotPos = new Transform3D(); float[] knots = {0.0f, 0.2f/*0.1f, 0.2f, 0.3f, 0.4f, 0.6f, 0.8f, 0.9f*/, 1.0f}; Quat4f[] quats = new Quat4f[3]; Point3f[] positions = new Point3f[3]; target.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); AxisAngle4f axis = new AxisAngle4f(1.0f,0.0f,0.0f,0.0f); axisOfRotPos.set(axis); quats[0] = new Quat4f(0.0f, 0.0f, 0.0f, 0.0f); quats[1] = new Quat4f(0.0f, 0.5f, 0.0f, 0.0f); quats[2] = new Quat4f(0.0f, 0.0f, 0.5f, 0.0f); /* quats[3] = new Quat4f(0.0f, 1.0f, 1.0f, 0.0f); quats[4] = new Quat4f(0.0f, 0.0f, 1.0f, 0.0f); quats[5] = new Quat4f(0.0f, 1.0f, 1.0f, 0.0f); quats[6] = new Quat4f(1.0f, 1.0f, 0.0f, 0.0f); quats[7] = new Quat4f(1.0f, 0.0f, 0.0f, 0.0f); quats[1] = new Quat4f(1.0f, 1.0f, 1.0f, 1.0f);*/ positions[0]= new Point3f( -0.5f, 0.0f, -1.0f); /* positions[1]= new Point3f( 1.0f, -1.0f, -2.0f); positions[2]= new Point3f( -1.0f, 1.0f, -3.0f); positions[3]= new Point3f( 2.0f, 0.0f, -4.0f); positions[4]= new Point3f( -2.0f, -1.0f, -5.0f); positions[5]= new Point3f( 3.0f, 1.0f, -6.0f); positions[6]= new Point3f( -3.0f, 0.0f, -7.0f); positions[7]= new Point3f( 2.0f, -1.0f, -4.0f);*/ positions[2]= new Point3f( -0.5f, 0.0f, -0.5f); positions[1]= positions[0]; RotPosPathInterpolator rotPosPath = new RotPosPathInterpolator( alpha, target, axisOfRotPos, knots, quats, positions); rotPosPath.setSchedulingBounds(new BoundingSphere()); objRoot.addChild(target); objRoot.addChild(rotPosPath); target.addChild(new ColorCube(0.4)); Background background = new Background(); background.setColor(1.0f, 1.0f, 1.0f); background.setApplicationBounds(new BoundingSphere()); objRoot.addChild(background); PointArray point_geom = new PointArray(9, GeometryArray.COORDINATES); point_geom.setCoordinates(0, positions); Appearance points_appear = new Appearance(); ColoringAttributes points_coloring = new ColoringAttributes(); points_coloring.setColor(1.0f, 0.0f, 0.0f); points_appear.setColoringAttributes(points_coloring); PointAttributes points_points = new PointAttributes(4.0f, true); points_appear.setPointAttributes(points_points); Shape3D points = new Shape3D(point_geom, points_appear); objRoot.addChild(points); objRoot.compile(); return objRoot; } // end of CreateSceneGraph method of RotPosPathApp // Create a simple scene and attach it to the virtual universe public RotPosPathApp() { 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 RotPosPathApp (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("RotPosPathApp.java \n- a demonstration of using the RotPosPathInterpolator "); System.out.println("and Alpha classes to provide animation in a Java 3D scene."); System.out.println("The RotPosPathInterpolator changes the target TransformGroup"); System.out.println("to change the POSition and ROTation along a PATH. The positions"); System.out.println("are marked by the red dots in the 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 RotPosPathApp(), 256, 256); } // end of main (method of RotPosPathApp) } // end of class RotPosPathApp