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Axis App
/*
* axisapp.java 1.0 98/11/25
*
* Copyright (c) 1998 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.
*/
/*
* Getting Started with the Java 3D API written in Java 3D
*
* This program demonstrates: 1. writing a visual object class In this program,
* Axis class defines a visual object This particular class does not extend
* another class. See other the text for a discussion and a differnt approach.
* 2. Using LineArray to draw 3D lines. Three LineArray geometries are contained
* in an instance of Axis. There are better ways of doing this. This is a simple
* example.
*/
import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Frame;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.LineArray;
import javax.media.j3d.Shape3D;
import javax.vecmath.Color3f;
import javax.vecmath.Point3f;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.SimpleUniverse;
public class AxisApp extends Applet {
/////////////////////////////////////////////////
//
// create graph branch group
//
public class Axis {
private BranchGroup axisBG;
////////////////////////////////////////////
//
// create axis subgraph
//
public Axis() {
axisBG = new BranchGroup();
// create line for X axis
LineArray axisXLines = new LineArray(2, LineArray.COORDINATES);
axisBG.addChild(new Shape3D(axisXLines));
axisXLines.setCoordinate(0, new Point3f(-1.0f, 0.0f, 0.0f));
axisXLines.setCoordinate(1, new Point3f(1.0f, 0.0f, 0.0f));
Color3f red = new Color3f(1.0f, 0.0f, 0.0f);
Color3f green = new Color3f(0.0f, 1.0f, 0.0f);
Color3f blue = new Color3f(0.0f, 0.0f, 1.0f);
// create line for Y axis
LineArray axisYLines = new LineArray(2, LineArray.COORDINATES
| LineArray.COLOR_3);
axisBG.addChild(new Shape3D(axisYLines));
axisYLines.setCoordinate(0, new Point3f(0.0f, -1.0f, 0.0f));
axisYLines.setCoordinate(1, new Point3f(0.0f, 1.0f, 0.0f));
axisYLines.setColor(0, green);
axisYLines.setColor(1, blue);
// create line for Z axis
Point3f z1 = new Point3f(0.0f, 0.0f, -1.0f);
Point3f z2 = new Point3f(0.0f, 0.0f, 1.0f);
LineArray axisZLines = new LineArray(10, LineArray.COORDINATES
| LineArray.COLOR_3);
axisBG.addChild(new Shape3D(axisZLines));
axisZLines.setCoordinate(0, z1);
axisZLines.setCoordinate(1, z2);
axisZLines.setCoordinate(2, z2);
axisZLines.setCoordinate(3, new Point3f(0.1f, 0.1f, 0.9f));
axisZLines.setCoordinate(4, z2);
axisZLines.setCoordinate(5, new Point3f(-0.1f, 0.1f, 0.9f));
axisZLines.setCoordinate(6, z2);
axisZLines.setCoordinate(7, new Point3f(0.1f, -0.1f, 0.9f));
axisZLines.setCoordinate(8, z2);
axisZLines.setCoordinate(9, new Point3f(-0.1f, -0.1f, 0.9f));
Color3f colors[] = new Color3f[9];
colors[0] = new Color3f(0.0f, 1.0f, 1.0f);
for (int v = 0; v < 9; v++) {
colors[v] = red;
}
axisZLines.setColors(1, colors);
} // end of axis constructor
public BranchGroup getBG() {
return axisBG;
}
} // end of class Axis
/////////////////////////////////////////////////
//
// create scene graph branch group
//
public BranchGroup createSceneGraph() {
BranchGroup objRoot = new Axis().getBG();
// Let Java 3D perform optimizations on this scene graph.
objRoot.compile();
return objRoot;
} // end of CreateSceneGraph method of yoyo1
// Create a simple scene and attach it to the virtual universe
public AxisApp() {
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 coneyoyo constructor
// The following allows this to be run as an application
// as well as an applet
public static void main(String[] args) {
Frame frame = new MainFrame(new AxisApp(), 256, 256);
} // end of main method of axisapp
} // end of class axisap
