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Java Source | 2003-08-08 | 6.9 KB | 218 lines |
- /*
- * @(#)ReadRaster.java 1.14 02/10/21 13:53:38
- *
- * 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.BorderLayout;
- import java.awt.event.*;
- import java.awt.image.DataBufferInt;
- import java.awt.image.BufferedImage;
- import java.awt.GraphicsConfiguration;
- import com.sun.j3d.utils.applet.MainFrame;
- import com.sun.j3d.utils.geometry.ColorCube;
- import com.sun.j3d.utils.universe.*;
- import javax.media.j3d.*;
- import javax.vecmath.*;
- import java.util.Enumeration;
-
- public class ReadRaster extends Applet {
-
- private SimpleUniverse u = null;
-
- public BranchGroup createSceneGraph(BufferedImage bImage,
- Raster readRaster) {
-
- // Create the root of the branch graph
- BranchGroup objRoot = new BranchGroup();
-
- // Create a Raster shape. Add it to the root of the subgraph
-
- ImageComponent2D drawImageComponent = new ImageComponent2D(
- ImageComponent.FORMAT_RGB, bImage);
-
- Raster drawRaster= new Raster(new Point3f(0.0f, 0.0f, 0.0f),
- Raster.RASTER_COLOR, 0, 0, bImage.getWidth(),
- bImage.getHeight(), drawImageComponent, null);
- Shape3D shape = new Shape3D(drawRaster);
- drawRaster.setCapability(Raster.ALLOW_IMAGE_WRITE);
- objRoot.addChild(shape);
-
- // Ceate the transform greup node and initialize it to the
- // identity. Enable the TRANSFORM_WRITE capability so that
- // our behavior code can modify it at runtime. Add it to the
- // root of the subgraph.
- TransformGroup objTrans = new TransformGroup();
- objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
-
- TransformGroup cubeScale = new TransformGroup();
- Transform3D t3d = new Transform3D();
- t3d.setTranslation(new Vector3d(-0.5, 0.5, 0.0));
- cubeScale.setTransform(t3d);
-
- cubeScale.addChild(objTrans);
- objRoot.addChild(cubeScale);
-
- // Create a simple shape leaf node, add it to the scene graph.
- objTrans.addChild(new ColorCube(0.3));
-
- // 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,
- 4000, 0, 0,
- 0, 0, 0);
- myRotationInterpolator rotator =
- new myRotationInterpolator(drawRaster, readRaster,
- rotationAlpha, objTrans, 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);
- objTrans.addChild(rotator);
-
- // Have Java 3D perform optimizations on this scene graph.
- objRoot.compile();
-
- return objRoot;
- }
-
- public ReadRaster() {
- }
-
- public void init() {
-
- int width = 128;
- int height = 128;
-
- ImageComponent2D readImageComponent = new ImageComponent2D(
- ImageComponent.FORMAT_RGB, width, height);
-
- Raster readRaster = new Raster(new Point3f(0.0f,0.0f,0.0f),
- Raster.RASTER_COLOR, 0, 0, width,
- height, readImageComponent, null);
-
- setLayout(new BorderLayout());
- GraphicsConfiguration config =
- SimpleUniverse.getPreferredConfiguration();
-
- Canvas3D c = new myCanvas3D(config, readRaster);
- add("Center", c);
-
- // Create a simple scene and attach it to the virtual universe
- BufferedImage bImage = new BufferedImage(width, height,
- BufferedImage.TYPE_INT_ARGB);
-
- BranchGroup scene = createSceneGraph(bImage, readRaster);
- 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 ReadRaster to be run as an application
- // as well as an applet
- //
- public static void main(String[] args) {
- new MainFrame(new ReadRaster(), 256, 256);
- }
- }
-
-
- class myCanvas3D extends Canvas3D {
-
- Raster readRaster;
- GraphicsContext3D gc;
-
- public myCanvas3D(GraphicsConfiguration graphicsConfiguration,
- Raster readRaster) {
-
- super(graphicsConfiguration);
- this.readRaster = readRaster;
- gc = getGraphicsContext3D();
- }
-
- public void postSwap() {
- super.postSwap();
- synchronized(readRaster) {
- gc.readRaster(readRaster);
- }
- }
- }
-
-
- class myRotationInterpolator extends RotationInterpolator {
- Point3f wPos = new Point3f(0.025f, -0.025f, 0.0f);
- Raster drawRaster;
- Raster readRaster;
- BufferedImage bImage;
- ImageComponent2D newImageComponent;
-
- public myRotationInterpolator(Raster drawRaster, Raster readRaster,
- Alpha alpha,
- TransformGroup target,
- Transform3D axisOfRotation,
- float minimumAngle,
- float maximumAngle) {
-
- super(alpha, target, axisOfRotation, minimumAngle, maximumAngle);
- this.drawRaster = drawRaster;
- this.readRaster = readRaster;
- }
-
- public void processStimulus(Enumeration criteria) {
-
- synchronized(readRaster) {
- bImage = readRaster.getImage().getImage();
- }
- newImageComponent = new ImageComponent2D(ImageComponent.FORMAT_RGB,
- bImage);
- drawRaster.setImage(newImageComponent);
- super.processStimulus(criteria);
- }
- }
-