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/Users/lyon/j4p/src/j3d/SwingingCubeApp.java
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1 package j3d;
2
3 /*
4 * @(#)RotPosPathApp.java 1.1 00/09/22 14:37
5 *
6 * Copyright (c) 1996-2000 Sun Microsystems, Inc. All Rights Reserved.
7 *
8 * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
9 * modify and redistribute this software in source and binary code form,
10 * provided that i) this copyright notice and license appear on all copies of
11 * the software; and ii) Licensee does not utilize the software in a manner
12 * which is disparaging to Sun.
13 *
14 * This software is provided "AS IS," without a warranty of any kind. ALL
15 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
16 * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
17 * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
18 * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
19 * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
20 * LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
21 * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
22 * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
23 * OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
24 * POSSIBILITY OF SUCH DAMAGES.
25 *
26 * This software is not designed or intended for use in on-line control of
27 * aircraft, air traffic, aircraft navigation or aircraft communications; or in
28 * the design, construction, operation or maintenance of any nuclear
29 * facility. Licensee represents and warrants that it will not use or
30 * redistribute the Software for such purposes.
31 */
32
33 import com.sun.j3d.utils.applet.MainFrame;
34 import com.sun.j3d.utils.geometry.ColorCube;
35 import com.sun.j3d.utils.universe.SimpleUniverse;
36
37 import javax.media.j3d.*;
38 import javax.vecmath.AxisAngle4f;
39 import javax.vecmath.Point3f;
40 import javax.vecmath.Quat4f;
41 import java.applet.Applet;
42 import java.awt.*;
43
44
45 public class SwingingCubeApp extends Applet {
46
47 public BranchGroup createSceneGraph() {
48 // Create the root of the branch graph
49 BranchGroup objRoot = new BranchGroup();
50
51 Alpha alpha = new Alpha(-1, 10000);
52 TransformGroup target = new TransformGroup();
53 Transform3D axisOfRotPos = new Transform3D();
54 float[] knots = {0.0f, 0.1f, 0.2f, 0.3f, 0.4f, 0.6f, 0.8f, 0.9f, 1.0f};
55 Quat4f[] quats = new Quat4f[9];
56 Point3f[] positions = new Point3f[9];
57
58 target.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
59
60 AxisAngle4f axis = new AxisAngle4f(1.0f, 0.0f, 0.0f, 0.0f);
61 axisOfRotPos.set(axis);
62
63 quats[0] = new Quat4f(0.0f, 1.0f, 1.0f, 0.0f);
64 quats[1] = new Quat4f(1.0f, 0.0f, 0.0f, 0.0f);
65 quats[2] = new Quat4f(0.0f, 1.0f, 0.0f, 0.0f);
66 quats[3] = new Quat4f(0.0f, 1.0f, 1.0f, 0.0f);
67 quats[4] = new Quat4f(0.0f, 0.0f, 1.0f, 0.0f);
68 quats[5] = new Quat4f(0.0f, 1.0f, 1.0f, 0.0f);
69 quats[6] = new Quat4f(1.0f, 1.0f, 0.0f, 0.0f);
70 quats[7] = new Quat4f(1.0f, 0.0f, 0.0f, 0.0f);
71 quats[8] = quats[0];
72
73 positions[0] = new Point3f(0.0f, 0.0f, -1.0f);
74 positions[1] = new Point3f(1.0f, -1.0f, -2.0f);
75 positions[2] = new Point3f(-1.0f, 1.0f, -3.0f);
76 positions[3] = new Point3f(2.0f, 0.0f, -4.0f);
77 positions[4] = new Point3f(-2.0f, -1.0f, -5.0f);
78 positions[5] = new Point3f(3.0f, 1.0f, -6.0f);
79 positions[6] = new Point3f(-3.0f, 0.0f, -7.0f);
80 positions[7] = new Point3f(2.0f, -1.0f, -4.0f);
81 positions[8] = positions[0];
82
83
84 RotPosPathInterpolator rotPosPath = new RotPosPathInterpolator(
85 alpha, target, axisOfRotPos, knots, quats, positions);
86 rotPosPath.setSchedulingBounds(new BoundingSphere());
87
88
89 objRoot.addChild(target);
90 objRoot.addChild(rotPosPath);
91 target.addChild(new ColorCube(0.4));
92
93 Background background = new Background();
94 background.setColor(1.0f, 1.0f, 1.0f);
95 background.setApplicationBounds(new BoundingSphere());
96 objRoot.addChild(background);
97
98 PointArray point_geom = new PointArray(9, GeometryArray.COORDINATES);
99 point_geom.setCoordinates(0, positions);
100 Appearance points_appear = new Appearance();
101 ColoringAttributes points_coloring = new ColoringAttributes();
102 points_coloring.setColor(1.0f, 0.0f, 0.0f);
103 points_appear.setColoringAttributes(points_coloring);
104 PointAttributes points_points = new PointAttributes(4.0f, true);
105 points_appear.setPointAttributes(points_points);
106 Shape3D points = new Shape3D(point_geom, points_appear);
107 objRoot.addChild(points);
108
109 objRoot.compile();
110
111 return objRoot;
112 } // end of CreateSceneGraph method of RotPosPathApp
113
114 // Create a simple scene and attach it to the virtual universe
115
116 public SwingingCubeApp() {
117 setLayout(new BorderLayout());
118 GraphicsConfiguration config =
119 SimpleUniverse.getPreferredConfiguration();
120
121 Canvas3D canvas3D = new Canvas3D(config);
122 add("Center", canvas3D);
123
124 BranchGroup scene = createSceneGraph();
125
126 // SimpleUniverse is a Convenience Utility class
127 SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
128
129 // This will move the ViewPlatform back a bit so the
130 // objects in the scene can be viewed.
131 simpleU.getViewingPlatform().setNominalViewingTransform();
132
133 simpleU.addBranchGraph(scene);
134 } // end of RotPosPathApp (constructor)
135
136 // The following allows this to be run as an application
137 // as well as an applet
138
139 public static void main(String[] args) {
140 System.out.print("RotPosPathApp.java \n- a demonstration of using the RotPosPathInterpolator ");
141 System.out.println("and Alpha classes to provide animation in a Java 3D scene.");
142 System.out.println("The RotPosPathInterpolator changes the target TransformGroup");
143 System.out.println("to change the POSition and ROTation along a PATH. The positions");
144 System.out.println("are marked by the red dots in the scene.");
145 System.out.println("This is a simple example progam from The Java 3D API Tutorial.");
146 System.out.println("The Java 3D Tutorial is available on the web at:");
147 System.out.println("http://java.sun.com/products/java-media/3D/collateral");
148 Frame frame = new MainFrame(new SwingingCubeApp(), 256, 256);
149 } // end of main (method of RotPosPathApp)
150
151 } // end of class RotPosPathApp
152