|
/Users/lyon/j4p/src/j3d/MorphApp.java
|
1 package j3d;
2
3 /*
4 * @(#)MorphApp.java 1.0 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.universe.SimpleUniverse;
35
36 import javax.media.j3d.*;
37 import javax.vecmath.Vector3f;
38 import java.applet.Applet;
39 import java.awt.*;
40 import java.util.Enumeration;
41
42 // MorphApp renders a single ColorCube
43 // that rotates when any key is pressed.
44
45 public class MorphApp extends Applet {
46
47 public class MorphBehavior extends Behavior {
48
49 private Morph targetMorph;
50 private Alpha alpha;
51 // the following two members are here for effciency (no memory burn)
52 private double[] weights = {0, 0, 0, 0};
53 private WakeupCondition trigger = new WakeupOnElapsedFrames(0);
54
55 // create MorphBehavior
56 MorphBehavior(Morph targetMorph, Alpha alpha) {
57 this.targetMorph = targetMorph;
58 this.alpha = alpha;
59 }
60
61 public void initialize() {
62 // set initial wakeup condition
63 this.wakeupOn(trigger);
64 }
65
66 public void processStimulus(Enumeration criteria) {
67 // don't need to decode event since there is only one trigger
68
69 // do what is necessary
70 weights[0] = 0;
71 weights[1] = 0;
72 weights[2] = 0;
73 weights[3] = 0;
74 float alphaValue = 4f * alpha.value() - 0.00001f;
75 int alphaIndex = (int) alphaValue;
76 weights[alphaIndex] = (double) alphaValue - (double) alphaIndex;
77 if (alphaIndex < 3)
78 weights[alphaIndex + 1] = 1.0 - weights[alphaIndex];
79 else
80 weights[0] = 1.0 - weights[alphaIndex];
81
82 targetMorph.setWeights(weights);
83 // set next wakeup condition
84 this.wakeupOn(trigger);
85 }
86
87 } // end of class MorphBehavior
88
89 public GeometryArray createGeomArray0() {
90 int[] counts = {7, 5, 2};
91 LineStripArray geom = new LineStripArray(14, GeometryArray.COORDINATES | GeometryArray.COLOR_3, counts);
92 float[] coordinates = {0.00f, 0.05f, 0f, -0.01f, 0.15f, 0f, 0.05f, 0.25f, 0f,
93 0.00f, 0.60f, 0f,
94 0.01f, 0.30f, 0f, 0.04f, 0.00f, 0f, 0.09f, 0.00f, 0f,
95 0.15f, 0.71f, 0f, -0.01f, 0.69f, 0f,
96 0.06f, 1.10f, 0f,
97 -0.05f, 0.75f, 0f, 0.14f, 0.75f, 0f,
98 0.06f, 1.10f, 0f, 0.00f, 0.60f, 0f};
99 geom.setCoordinates(0, coordinates);
100
101 // not setting the colors is the same as setting them to black
102 // Color3f c = new Color3f(0f, 0f, 0f);
103 // for (int i = 0; i < 14; i++) geom.setColor(i, c);
104
105 return geom;
106 }
107
108 public GeometryArray createGeomArray1() {
109 int[] counts = {7, 5, 2};
110 LineStripArray geom = new LineStripArray(14, GeometryArray.COORDINATES | GeometryArray.COLOR_3, counts);
111 float[] coordinates = {-0.10f, 0.00f, 0f, -0.15f, 0.08f, 0f, -0.05f, 0.30f, 0f,
112 0.00f, 0.60f, 0f,
113 0.15f, 0.30f, 0f, 0.10f, 0.00f, 0f, 0.15f, 0.05f, 0f,
114 0.05f, 0.70f, 0f, -0.05f, 0.80f, 0f,
115 0.06f, 1.10f, 0f,
116 0.05f, 0.70f, 0f, 0.20f, 0.80f, 0f,
117 0.06f, 1.10f, 0f, 0.00f, 0.60f, 0f};
118 geom.setCoordinates(0, coordinates);
119
120 // not setting the colors is the same as setting them to black
121 // Color3f c = new Color3f(0f, 0f, 0f);
122 // for (int i = 0; i < 14; i++) geom.setColor(i, c);
123
124 return geom;
125 }
126
127 public GeometryArray createGeomArray2() {
128 int[] counts = {7, 5, 2};
129 LineStripArray geom = new LineStripArray(14, GeometryArray.COORDINATES | GeometryArray.COLOR_3, counts);
130 float[] coordinates = {0.09f, 0.00f, 0f, 0.04f, 0.00f, 0f, 0.01f, 0.30f, 0f,
131 0.00f, 0.60f, 0f,
132 0.05f, 0.25f, 0f, -0.01f, 0.15f, 0f, 0.00f, 0.05f, 0f,
133 0.14f, 0.75f, 0f, -0.05f, 0.75f, 0f,
134 0.06f, 1.10f, 0f,
135 -0.01f, 0.69f, 0f, 0.15f, 0.71f, 0f,
136 0.06f, 1.10f, 0f, 0.00f, 0.60f, 0f};
137 geom.setCoordinates(0, coordinates);
138
139 // not setting the colors is the same as setting them to black
140 // Color3f c = new Color3f(0f, 0f, 0f);
141 // for (int i = 0; i < 14; i++) geom.setColor(i, c);
142
143 return geom;
144 }
145
146 public GeometryArray createGeomArray3() {
147 int[] counts = {7, 5, 2};
148 LineStripArray geom = new LineStripArray(14, GeometryArray.COORDINATES | GeometryArray.COLOR_3, counts);
149 float[] coordinates = {0.15f, 0.05f, 0f, 0.10f, 0.00f, 0f, 0.15f, 0.30f, 0f,
150 0.00f, 0.60f, 0f,
151 -0.05f, 0.30f, 0f, -0.15f, 0.08f, 0f, -0.10f, 0.00f, 0f,
152 0.20f, 0.80f, 0f, 0.05f, 0.70f, 0f,
153 0.06f, 1.10f, 0f,
154 -0.05f, 0.80f, 0f, 0.05f, 0.70f, 0f,
155 0.06f, 1.10f, 0f, 0.00f, 0.60f, 0f};
156 geom.setCoordinates(0, coordinates);
157
158 // not setting the colors is the same as setting them to black
159 // Color3f c = new Color3f(0f, 0f, 0f);
160 // for (int i = 0; i < 14; i++) geom.setColor(i, c);
161
162 return geom;
163 }
164
165 public BranchGroup createSceneGraph() {
166 // Create the root of the branch graph
167 BranchGroup objRoot = new BranchGroup();
168
169 Transform3D t3d = new Transform3D();
170 t3d.set(new Vector3f(0f, -0.5f, 0f));
171 TransformGroup translate = new TransformGroup(t3d);
172
173 // create GeometryArray[] (array of GeometryArray objects)
174 GeometryArray[] geomArray = new GeometryArray[4];
175 geomArray[0] = createGeomArray0();
176 geomArray[1] = createGeomArray1();
177 geomArray[2] = createGeomArray2();
178 geomArray[3] = createGeomArray3();
179
180 // create morph object
181 Morph morphObj = new Morph(geomArray);
182 morphObj.setCapability(Morph.ALLOW_WEIGHTS_WRITE);
183
184 // create alpha object
185 Alpha alpha = new Alpha(-1, 1, 0, 0, 2000, 100, 0, 0, 0, 0);
186
187 // create morph driving behavior
188 MorphBehavior morphBehav = new MorphBehavior(morphObj, alpha);
189 morphBehav.setSchedulingBounds(new BoundingSphere());
190
191 //assemble scene graph
192 objRoot.addChild(translate);
193 translate.addChild(morphObj);
194 objRoot.addChild(morphBehav);
195
196 Background background = new Background();
197 background.setColor(1f, 1f, 1f);
198 background.setApplicationBounds(new BoundingSphere());
199 objRoot.addChild(background);
200
201 // Let Java 3D perform optimizations on this scene graph.
202 objRoot.compile();
203
204 return objRoot;
205 } // end of CreateSceneGraph method of MorphApp
206
207 // Create a simple scene and attach it to the virtual universe
208
209 public MorphApp() {
210 setLayout(new BorderLayout());
211 GraphicsConfiguration config =
212 SimpleUniverse.getPreferredConfiguration();
213
214 Canvas3D canvas3D = new Canvas3D(config);
215 add("Center", canvas3D);
216
217 BranchGroup scene = createSceneGraph();
218
219 // SimpleUniverse is a Convenience Utility class
220 SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
221
222 // This will move the ViewPlatform back a bit so the
223 // objects in the scene can be viewed.
224 simpleU.getViewingPlatform().setNominalViewingTransform();
225
226 simpleU.addBranchGraph(scene);
227 } // end of MorphApp (constructor)
228 // The following allows this to be run as an application
229 // as well as an applet
230
231 public static void main(String[] args) {
232 System.out.print("MorphApp.java \n- a demonstration of animation");
233 System.out.println("using the Morph class in a Java 3D scene.");
234 System.out.println("This is a simple example progam from The Java 3D API Tutorial.");
235 System.out.println("The Java 3D Tutorial is available on the web at:");
236 System.out.println("http://java.sun.com/products/java-media/3D/collateral");
237 Frame frame = new MainFrame(new MorphApp(), 256, 256);
238 } // end of main (method of MorphApp)
239
240 } // end of class MorphApp
241