MouseNavigatorApp.java Source code

Java tutorial

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Here is the source code for MouseNavigatorApp.java

Source

/*
 * @(#)MouseNavigatorApp.java 1.0 99/03/25 11:42:40
 * 
 * Copyright (c) 1996-1999 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.
 */

import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Frame;

import javax.media.j3d.BoundingSphere;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.Geometry;
import javax.media.j3d.GeometryArray;
import javax.media.j3d.IndexedLineArray;
import javax.media.j3d.Shape3D;
import javax.media.j3d.TransformGroup;
import javax.vecmath.Point3d;
import javax.vecmath.Point3f;

import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.behaviors.mouse.MouseBehavior;
import com.sun.j3d.utils.behaviors.mouse.MouseRotate;
import com.sun.j3d.utils.behaviors.mouse.MouseTranslate;
import com.sun.j3d.utils.behaviors.mouse.MouseZoom;
import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.universe.SimpleUniverse;

//   MouseNavigatorApp renders a single, interactively rotatable,
//   traslatable, and zoomable ColorCube object.

public class MouseNavigatorApp extends Applet {

    public BranchGroup createSceneGraph(SimpleUniverse su) {
        // Create the root of the branch graph
        BranchGroup objRoot = new BranchGroup();
        TransformGroup vpTrans = null;
        BoundingSphere mouseBounds = null;

        vpTrans = su.getViewingPlatform().getViewPlatformTransform();

        objRoot.addChild(new ColorCube(0.4));
        objRoot.addChild(new Axis());

        mouseBounds = new BoundingSphere(new Point3d(), 1000.0);

        MouseRotate myMouseRotate = new MouseRotate(MouseBehavior.INVERT_INPUT);
        myMouseRotate.setTransformGroup(vpTrans);
        myMouseRotate.setSchedulingBounds(mouseBounds);
        objRoot.addChild(myMouseRotate);

        MouseTranslate myMouseTranslate = new MouseTranslate(MouseBehavior.INVERT_INPUT);
        myMouseTranslate.setTransformGroup(vpTrans);
        myMouseTranslate.setSchedulingBounds(mouseBounds);
        objRoot.addChild(myMouseTranslate);

        MouseZoom myMouseZoom = new MouseZoom(MouseBehavior.INVERT_INPUT);
        myMouseZoom.setTransformGroup(vpTrans);
        myMouseZoom.setSchedulingBounds(mouseBounds);
        objRoot.addChild(myMouseZoom);

        // Let Java 3D perform optimizations on this scene graph.
        objRoot.compile();

        return objRoot;
    } // end of CreateSceneGraph method of MouseNavigatorApp

    // Create a simple scene and attach it to the virtual universe

    public MouseNavigatorApp() {
        setLayout(new BorderLayout());
        Canvas3D canvas3D = new Canvas3D(null);
        add("Center", canvas3D);

        // SimpleUniverse is a Convenience Utility class
        SimpleUniverse simpleU = new SimpleUniverse(canvas3D);

        BranchGroup scene = createSceneGraph(simpleU);

        // 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 MouseNavigatorApp (constructor)

    //  The following allows this to be run as an application
    //  as well as an applet

    public static void main(String[] args) {
        System.out.print("MouseNavigatorApp.java \n- a demonstration of using the mouse ");
        System.out.println("behavior utility classes to provide navigational interaction in a Java 3D scene.");
        System.out.println("Hold the mouse button while moving the mouse to move.");
        System.out.println("     left mouse button      - rotate");
        System.out.println("     right mouse button     - translate");
        System.out.println("     Alt+left mouse button  - zoom");
        System.out.println("This is a simple example progam from The Java 3D API Tutorial.");
        System.out.println("The Java 3D Tutorial is available on the web at:");
        System.out.println("http://www.sun.com/desktop/java3d/collateral");
        Frame frame = new MainFrame(new MouseNavigatorApp(), 256, 256);
    } // end of main (method of MouseNavigatorApp)

} // end of class MouseNavigatorApp

/*
 * 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 extends Shape3D See
 * the text for a discussion. 2. Using LineArray to draw 3D lines.
 */

class Axis extends Shape3D {

    ////////////////////////////////////////////
    //
    // create axis visual object
    //
    public Axis() {

        this.setGeometry(createGeometry());

    }

    private Geometry createGeometry() {
        // create line for X axis
        IndexedLineArray axisLines = new IndexedLineArray(18, GeometryArray.COORDINATES, 30);

        axisLines.setCoordinate(0, new Point3f(-1.0f, 0.0f, 0.0f));
        axisLines.setCoordinate(1, new Point3f(1.0f, 0.0f, 0.0f));
        axisLines.setCoordinate(2, new Point3f(0.9f, 0.1f, 0.1f));
        axisLines.setCoordinate(3, new Point3f(0.9f, -0.1f, 0.1f));
        axisLines.setCoordinate(4, new Point3f(0.9f, 0.1f, -0.1f));
        axisLines.setCoordinate(5, new Point3f(0.9f, -0.1f, -0.1f));
        axisLines.setCoordinate(6, new Point3f(0.0f, -1.0f, 0.0f));
        axisLines.setCoordinate(7, new Point3f(0.0f, 1.0f, 0.0f));
        axisLines.setCoordinate(8, new Point3f(0.1f, 0.9f, 0.1f));
        axisLines.setCoordinate(9, new Point3f(-0.1f, 0.9f, 0.1f));
        axisLines.setCoordinate(10, new Point3f(0.1f, 0.9f, -0.1f));
        axisLines.setCoordinate(11, new Point3f(-0.1f, 0.9f, -0.1f));
        axisLines.setCoordinate(12, new Point3f(0.0f, 0.0f, -1.0f));
        axisLines.setCoordinate(13, new Point3f(0.0f, 0.0f, 1.0f));
        axisLines.setCoordinate(14, new Point3f(0.1f, 0.1f, 0.9f));
        axisLines.setCoordinate(15, new Point3f(-0.1f, 0.1f, 0.9f));
        axisLines.setCoordinate(16, new Point3f(0.1f, -0.1f, 0.9f));
        axisLines.setCoordinate(17, new Point3f(-0.1f, -0.1f, 0.9f));

        axisLines.setCoordinateIndex(0, 0);
        axisLines.setCoordinateIndex(1, 1);
        axisLines.setCoordinateIndex(2, 2);
        axisLines.setCoordinateIndex(3, 1);
        axisLines.setCoordinateIndex(4, 3);
        axisLines.setCoordinateIndex(5, 1);
        axisLines.setCoordinateIndex(6, 4);
        axisLines.setCoordinateIndex(7, 1);
        axisLines.setCoordinateIndex(8, 5);
        axisLines.setCoordinateIndex(9, 1);
        axisLines.setCoordinateIndex(10, 6);
        axisLines.setCoordinateIndex(11, 7);
        axisLines.setCoordinateIndex(12, 8);
        axisLines.setCoordinateIndex(13, 7);
        axisLines.setCoordinateIndex(14, 9);
        axisLines.setCoordinateIndex(15, 7);
        axisLines.setCoordinateIndex(16, 10);
        axisLines.setCoordinateIndex(17, 7);
        axisLines.setCoordinateIndex(18, 11);
        axisLines.setCoordinateIndex(19, 7);
        axisLines.setCoordinateIndex(20, 12);
        axisLines.setCoordinateIndex(21, 13);
        axisLines.setCoordinateIndex(22, 14);
        axisLines.setCoordinateIndex(23, 13);
        axisLines.setCoordinateIndex(24, 15);
        axisLines.setCoordinateIndex(25, 13);
        axisLines.setCoordinateIndex(26, 16);
        axisLines.setCoordinateIndex(27, 13);
        axisLines.setCoordinateIndex(28, 17);
        axisLines.setCoordinateIndex(29, 13);

        return axisLines;

    } // end of Axis createGeometry()

} // end of class Axis