IRIX 6.5 Applications 2004 May/SGI IRIX 6.5 Applications 2004 May.iso/dist/java3d.idb/usr/demos/java/j3d/programs/examples/TickTockPicking/TickTockPicking.java.z/TickTockPicking.java

Java Source | 2003-08-08 | 12.9 KB | 442 lines

/*
 *    @(#)TickTockPicking.java 1.28 02/10/21 13:58:21
 *
 * Copyright (c) 1996-2002 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistribution in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in
 *   the documentation and/or other materials provided with the
 *   distribution.
 *
 * Neither the name of Sun Microsystems, Inc. or the names of
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 *
 * 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.
 *
 * You acknowledge that Software is not designed,licensed or intended
 * for use in the design, construction, operation or maintenance of
 * any nuclear facility.
 */

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.image.TextureLoader;
import javax.media.j3d.*;
import javax.vecmath.*;

public class TickTockPicking extends Applet {

    // path the the texture map image
    private java.net.URL texImage = null;

    private SimpleUniverse u = null;

    public BranchGroup createSceneGraph(Canvas3D c) {
    // Create the root of the branch graph
    BranchGroup objRoot = new BranchGroup();

        // Create a Transformgroup to scale all objects so they
        // appear in the scene.
        TransformGroup objScale = new TransformGroup();
        Transform3D t3d = new Transform3D();
        t3d.setScale(0.4);
        objScale.setTransform(t3d);
        objRoot.addChild(objScale);

    // Create a bounds for the background and behaviors
    BoundingSphere bounds =
        new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);

    // Set up the background
    Color3f bgColor = new Color3f(0.05f, 0.05f, 0.2f);
    Background bg = new Background(bgColor);
    bg.setApplicationBounds(bounds);
    objScale.addChild(bg);

    // Set up the global lights
    Color3f lColor1 = new Color3f(0.7f, 0.7f, 0.7f);
    Vector3f lDir1  = new Vector3f(-1.0f, -1.0f, -1.0f);
    Color3f alColor = new Color3f(0.2f, 0.2f, 0.2f);

    AmbientLight aLgt = new AmbientLight(alColor);
    aLgt.setInfluencingBounds(bounds);
    DirectionalLight lgt1 = new DirectionalLight(lColor1, lDir1);
    lgt1.setInfluencingBounds(bounds);
    objScale.addChild(aLgt);
    objScale.addChild(lgt1);

    // Create a pair of transform group nodes and initialize them to
    // identity.  Enable the TRANSFORM_WRITE capability so that
    // our behaviors can modify them at runtime.  Add them to the
    // root of the subgraph.
    TransformGroup objTrans1 = new TransformGroup();
    objTrans1.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    objScale.addChild(objTrans1);

    TransformGroup objTrans2 = new TransformGroup();
    objTrans2.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    objTrans1.addChild(objTrans2);

    // Create the positioning and scaling transform group node.
    Transform3D t = new Transform3D();
    t.set(0.3, new Vector3d(0.0, -1.5, 0.0));
    TransformGroup objTrans3 = new TransformGroup(t);
    objTrans2.addChild(objTrans3);

    // Create a simple shape leaf node, set it's appearance, and
    // add it to the scene graph.
    Shape3D shape = new Cube();
    Appearance a = new Appearance();
    Color3f black = new Color3f(0.0f, 0.0f, 0.0f);
    Color3f white = new Color3f(1.0f, 1.0f, 1.0f);
    Color3f objColor = new Color3f(0.8f, 0.0f, 0.0f);
    a.setMaterial(new Material(objColor, black, objColor,
                   white, 80.0f));
    shape.setAppearance(a);
    shape.setCapability(shape.ALLOW_APPEARANCE_READ);
    shape.setCapability(shape.ALLOW_APPEARANCE_WRITE);
    objTrans3.addChild(shape);

    // Create a new Behavior object that will perform the desired
    // rotation on the specified transform object and add it into
    // the scene graph.
    Transform3D yAxis1 = new Transform3D();
    yAxis1.rotX(Math.PI/2.0);
    Alpha tickTockAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE |
                    Alpha.DECREASING_ENABLE,
                    0, 0,
                    5000, 2500, 200,
                    5000, 2500, 200);

    RotationInterpolator tickTock =
        new RotationInterpolator(tickTockAlpha, objTrans1, yAxis1,
                     -(float) Math.PI/2.0f,
                     (float) Math.PI/2.0f);
    tickTock.setSchedulingBounds(bounds);
    objTrans2.addChild(tickTock);

    // Create a new Behavior object that will perform the desired
    // rotation on the specified transform object and add it into
    // the scene graph.
    Transform3D yAxis2 = new Transform3D();
    Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE,
                    0, 0,
                    4000, 0, 0,
                    0, 0, 0);

    RotationInterpolator rotator =
        new RotationInterpolator(rotationAlpha, objTrans2, yAxis2,
                     0.0f, (float) Math.PI*2.0f);
    rotator.setSchedulingBounds(bounds);
    objTrans2.addChild(rotator);

    // Now create the simple picking behavior
    PickHighlightBehavior pickBeh = new
      PickHighlightBehavior(c, objRoot, bounds);

    // Create a bunch of objects with a behavior and add them
    // into the scene graph.

    int row, col;
    Appearance[][] app = new Appearance[3][3];

    for (row = 0; row < 3; row++)
        for (col = 0; col < 3; col++)
        app[row][col] = createAppearance(row * 3 + col);

    for (int i = 0; i < 3; i++) {
        double ypos = (double)(i - 1) * 1.5;
        for (int j = 0; j < 3; j++) {
        double xpos = (double)(j - 1) * 1.5;
        objScale.addChild(createObject(app[i][j], 0.3,  xpos, ypos));
        }
    }

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

    return objRoot;
    }


    private Appearance createAppearance(int idx) {
    Appearance app = new Appearance();

    // Globally used colors
    Color3f black = new Color3f(0.0f, 0.0f, 0.0f);
    Color3f white = new Color3f(1.0f, 1.0f, 1.0f);

    switch (idx) {
    // Unlit solid
    case 0:
        {
        // Set up the coloring properties
        Color3f objColor = new Color3f(1.0f, 0.2f, 0.4f);
        ColoringAttributes ca = new ColoringAttributes();
        ca.setColor(objColor);
        app.setColoringAttributes(ca);
        break;
        }


    // Unlit wire frame
    case 1:
        {
        // Set up the coloring properties
        Color3f objColor = new Color3f(1.0f, 0.4f, 0.0f);
        ColoringAttributes ca = new ColoringAttributes();
        ca.setColor(objColor);
        app.setColoringAttributes(ca);

        // Set up the polygon attributes
        PolygonAttributes pa = new PolygonAttributes();
        pa.setPolygonMode(pa.POLYGON_LINE);
        pa.setCullFace(pa.CULL_NONE);
        app.setPolygonAttributes(pa);
        break;
        }

    // Unlit points
    case 2:
        {
        // Set up the coloring properties
        Color3f objColor = new Color3f(1.0f, 1.0f, 0.0f);
        ColoringAttributes ca = new ColoringAttributes();
        ca.setColor(objColor);
        app.setColoringAttributes(ca);

        // Set up the polygon attributes
        PolygonAttributes pa = new PolygonAttributes();
        pa.setPolygonMode(pa.POLYGON_POINT);
        pa.setCullFace(pa.CULL_NONE);
        app.setPolygonAttributes(pa);

        // Set up point attributes
        PointAttributes pta = new PointAttributes();
        pta.setPointSize(5.0f);
        app.setPointAttributes(pta);
        break;
        }

    // Lit solid
    case 3:
        {
        // Set up the material properties
        Color3f objColor = new Color3f(0.8f, 0.0f, 0.0f);
        app.setMaterial(new Material(objColor, black, objColor,
                         white, 80.0f));
        break;
        }

    // Texture mapped, lit solid
    case 4:
        {
        // Set up the texture map
        TextureLoader tex = new TextureLoader(texImage, this);
        app.setTexture(tex.getTexture());

        TextureAttributes texAttr = new TextureAttributes();
        texAttr.setTextureMode(TextureAttributes.MODULATE);
        app.setTextureAttributes(texAttr);

        // Set up the material properties
        app.setMaterial(new Material(white, black, white, black, 1.0f));
        break;
        }

    // Transparent, lit solid
    case 5:
        {
        // Set up the transparency properties
        TransparencyAttributes ta = new TransparencyAttributes();
        ta.setTransparencyMode(ta.BLENDED);
        ta.setTransparency(0.6f);
        app.setTransparencyAttributes(ta);

        // Set up the polygon attributes
        PolygonAttributes pa = new PolygonAttributes();
        pa.setCullFace(pa.CULL_NONE);
        app.setPolygonAttributes(pa);

        // Set up the material properties
        Color3f objColor = new Color3f(0.7f, 0.8f, 1.0f);
        app.setMaterial(new Material(objColor, black, objColor,
                         black, 1.0f));
        break;
        }

    // Lit solid, no specular
    case 6:
        {
        // Set up the material properties
        Color3f objColor = new Color3f(0.8f, 0.0f, 0.0f);
        app.setMaterial(new Material(objColor, black, objColor,
                         black, 80.0f));
        break;
        }

    // Lit solid, specular only
    case 7:
        {
        // Set up the material properties
        Color3f objColor = new Color3f(0.8f, 0.0f, 0.0f);
        app.setMaterial(new Material(black, black, black,
                         white, 80.0f));
        break;
        }

    // Another lit solid with a different color
    case 8:
        {
        // Set up the material properties
        Color3f objColor = new Color3f(0.8f, 0.8f, 0.0f);
        app.setMaterial(new Material(objColor, black, objColor,
                         white, 80.0f));
        break;
        }

    default:
        {
        ColoringAttributes ca = new ColoringAttributes();
        ca.setColor(new Color3f(0.0f, 1.0f, 0.0f));
        app.setColoringAttributes(ca);
        }
    }

    return app;
    }


    private Group createObject(Appearance app, double scale,
                   double xpos, double ypos) {

    // Create a transform group node to scale and position the object.
    Transform3D t = new Transform3D();
    t.set(scale, new Vector3d(xpos, ypos, 0.0));
    TransformGroup objTrans = new TransformGroup(t);

    // Create a second transform group node and initialize it to the
    // identity.  Enable the TRANSFORM_WRITE capability so that
    // our behavior code can modify it at runtime.
    TransformGroup spinTg = new TransformGroup();
    spinTg.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    spinTg.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);

    // Create a simple shape leaf node and set the appearance
    Shape3D shape = new Tetrahedron();
    shape.setAppearance(app);
    shape.setCapability(shape.ALLOW_APPEARANCE_READ);
    shape.setCapability(shape.ALLOW_APPEARANCE_WRITE);

    // add it to the scene graph.
    spinTg.addChild(shape);

    // Create a new Behavior object that will perform the desired
    // operation on the specified transform object and add it into
    // the scene graph.
    Transform3D yAxis = new Transform3D();
    Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE,
                    0, 0,
                    5000, 0, 0,
                    0, 0, 0);

    RotationInterpolator rotator =
        new RotationInterpolator(rotationAlpha, spinTg, yAxis,
                     0.0f, (float) Math.PI*2.0f);

    BoundingSphere bounds =
        new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);

    rotator.setSchedulingBounds(bounds);

    // Add the behavior and the transform group to the object
    objTrans.addChild(rotator);
    objTrans.addChild(spinTg);

    return objTrans;
    }


    public TickTockPicking() {
    }

    public TickTockPicking(java.net.URL url) {
    texImage = url;
    }

    public void init() {
    if (texImage == null) {
        // the path to the image for an applet
        try {
        texImage = new java.net.URL(getCodeBase().toString() +
                       "../images/apimage.jpg");
        }
        catch (java.net.MalformedURLException ex) {
        System.out.println(ex.getMessage());
        System.exit(1);
        }
    }

    setLayout(new BorderLayout());
        GraphicsConfiguration config =
           SimpleUniverse.getPreferredConfiguration();

        Canvas3D c = new Canvas3D(config);
    add("Center", c);

    // Create a simple scene and attach it to the virtual universe
    BranchGroup scene = createSceneGraph(c);
    u = new SimpleUniverse(c);

        // This will move the ViewPlatform back a bit so the
        // objects in the scene can be viewed.
        u.getViewingPlatform().setNominalViewingTransform();

    u.addBranchGraph(scene);

    }

    public void destroy() {
    u.cleanup();
    }

    //
    // The following allows TickTockPicking to be run as an application
    // as well as an applet
    //
    public static void main(String[] args) {
    // the path the the texture map for an application
    java.net.URL url = null;
    try {
        url = new java.net.URL("file:../images/apimage.jpg");
    }
    catch (java.net.MalformedURLException ex) {
        System.out.println(ex.getMessage());
        System.exit(1);
    }
    new MainFrame(new TickTockPicking(url), 700, 700);
    }
}