AxisApp.java Source code

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Here is the source code for AxisApp.java

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/*
 * 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