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/Users/lyon/j4p/src/j3d/AxisApp.java
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1 package j3d;
2
3 /*
4 * @(#)AxisApp.java 1.1 00/09/22 15:57
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 /*
34 * Getting Started with the Java 3D API
35 * written in Java 3D
36 *
37 * This program demonstrates:
38 * 1. writing a visual object class
39 * In this program, Axis class defines a visual object
40 * This particular class does not extend another class.
41 * See other the text for a discussion and a differnt approach.
42 * 2. Using LineArray to draw 3D lines.
43 * Three LineArray geometries are contained in an instance of Axis.
44 * There are better ways of doing this. This is a simple example.
45 */
46
47 import com.sun.j3d.utils.applet.MainFrame;
48 import com.sun.j3d.utils.universe.SimpleUniverse;
49
50 import javax.media.j3d.BranchGroup;
51 import javax.media.j3d.Canvas3D;
52 import javax.media.j3d.LineArray;
53 import javax.media.j3d.Shape3D;
54 import javax.vecmath.Color3f;
55 import javax.vecmath.Point3f;
56 import java.applet.Applet;
57 import java.awt.*;
58
59
60 public class AxisApp extends Applet {
61
62 /////////////////////////////////////////////////
63 //
64 // create graph branch group
65 //
66 public class Axis {
67
68 private BranchGroup axisBG;
69
70 ////////////////////////////////////////////
71 //
72 // create axis subgraph
73 //
74 public Axis() {
75
76 axisBG = new BranchGroup();
77
78 // create line for X axis
79 LineArray axisXLines = new LineArray(2, LineArray.COORDINATES);
80 axisBG.addChild(new Shape3D(axisXLines));
81
82 axisXLines.setCoordinate(0, new Point3f(-1.0f, 0.0f, 0.0f));
83 axisXLines.setCoordinate(1, new Point3f(1.0f, 0.0f, 0.0f));
84
85 Color3f red = new Color3f(1.0f, 0.0f, 0.0f);
86 Color3f green = new Color3f(0.0f, 1.0f, 0.0f);
87 Color3f blue = new Color3f(0.0f, 0.0f, 1.0f);
88
89 // create line for Y axis
90 LineArray axisYLines = new LineArray(2,
91 LineArray.COORDINATES | LineArray.COLOR_3);
92 axisBG.addChild(new Shape3D(axisYLines));
93
94 axisYLines.setCoordinate(0, new Point3f(0.0f, -1.0f, 0.0f));
95 axisYLines.setCoordinate(1, new Point3f(0.0f, 1.0f, 0.0f));
96
97 axisYLines.setColor(0, green);
98 axisYLines.setColor(1, blue);
99
100 // create line for Z axis
101 Point3f z1 = new Point3f(0.0f, 0.0f, -1.0f);
102 Point3f z2 = new Point3f(0.0f, 0.0f, 1.0f);
103
104 LineArray axisZLines = new LineArray(10,
105 LineArray.COORDINATES | LineArray.COLOR_3
106 );
107 axisBG.addChild(new Shape3D(axisZLines));
108
109 axisZLines.setCoordinate(0, z1);
110 axisZLines.setCoordinate(1, z2);
111 axisZLines.setCoordinate(2, z2);
112 axisZLines.setCoordinate(3, new Point3f(0.1f, 0.1f, 0.9f));
113 axisZLines.setCoordinate(4, z2);
114 axisZLines.setCoordinate(5, new Point3f(-0.1f, 0.1f, 0.9f));
115 axisZLines.setCoordinate(6, z2);
116 axisZLines.setCoordinate(7, new Point3f(0.1f, -0.1f, 0.9f));
117 axisZLines.setCoordinate(8, z2);
118 axisZLines.setCoordinate(9, new Point3f(-0.1f, -0.1f, 0.9f));
119
120 Color3f colors[] = new Color3f[9];
121
122 colors[0] = new Color3f(0.0f, 1.0f, 1.0f);
123 for (int v = 0; v < 9; v++) {
124 colors[v] = red;
125 }
126
127 axisZLines.setColors(1, colors);
128
129 } // end of axis constructor
130
131 public BranchGroup getBG() {
132 return axisBG;
133 }
134
135 } // end of class Axis
136
137 /////////////////////////////////////////////////
138 //
139 // create scene graph branch group
140 //
141 public BranchGroup createSceneGraph() {
142
143 BranchGroup objRoot = new Axis().getBG();
144
145 // Let Java 3D perform optimizations on this scene graph.
146 objRoot.compile();
147
148 return objRoot;
149 } // end of CreateSceneGraph method of yoyo1
150
151 // Create a simple scene and attach it to the virtual universe
152
153 public AxisApp() {
154 setLayout(new BorderLayout());
155 GraphicsConfiguration config =
156 SimpleUniverse.getPreferredConfiguration();
157
158 Canvas3D canvas3D = new Canvas3D(config);
159 add("Center", canvas3D);
160
161 BranchGroup scene = createSceneGraph();
162
163 // SimpleUniverse is a Convenience Utility class
164 SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
165
166 // This will move the ViewPlatform back a bit so the
167 // objects in the scene can be viewed.
168 simpleU.getViewingPlatform().setNominalViewingTransform();
169
170 simpleU.addBranchGraph(scene);
171 } // end of coneyoyo constructor
172
173 // The following allows this to be run as an application
174 // as well as an applet
175
176 public static void main(String[] args) {
177 Frame frame = new MainFrame(new AxisApp(), 256, 256);
178 } // end of main method of axisapp
179
180 } // end of class axisap
181