Embedded Files
/* Mykeynavbeh.java * Originally based on code from BackgroundApp.java * @(#)BackgroundApp.java 1.1 00/09/22 14:03 * * portions Copyright (c) 1996-2000 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.*;import java.awt.*;
import javax.media.j3d.*;import javax.vecmath.*;
import com.sun.j3d.utils.applet.MainFrame;import com.sun.j3d.utils.universe.SimpleUniverse;import com.sun.j3d.utils.universe.PlatformGeometry;import com.sun.j3d.utils.behaviors.keyboard.*;
import com.sun.j3d.loaders.Scene;
import java.awt.event.KeyListener;import java.awt.event.KeyEvent;
import com.sun.j3d.utils.image.TextureLoader;
import java.util.*;
public class Mykeynavbeh extends Applet implements KeyListener {
private SimpleUniverse universe = null; private Canvas3D canvas = null; private TransformGroup viewtrans = null; private Transform3D t3d_vt = new Transform3D();
private TransformGroup tg = null; // private Transform3D t3d = null; private Transform3D t3dstep = new Transform3D(); private Matrix4d matrix = new Matrix4d();
private MovingView view = null;
private boolean cstate = false;
public Mykeynavbeh() { setLayout(new BorderLayout()); GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
canvas = new Canvas3D(config); add("Center", canvas); universe = new SimpleUniverse(canvas);
BranchGroup scene = createSceneGraph(); universe.getViewingPlatform().setNominalViewingTransform();
universe.getViewer().getView().setBackClipDistance(500.0);
canvas.addKeyListener(this);
universe.addBranchGraph(scene); }
private BranchGroup createSceneGraph() { BranchGroup objRoot = new BranchGroup();
BoundingSphere bounds = new BoundingSphere(new Point3d(), 10000.0);
viewtrans = universe.getViewingPlatform().getViewPlatformTransform(); universe.getViewer().getView().setDepthBufferFreezeTransparent(false);
KeyNavigatorBehavior keyNavBeh = new KeyNavigatorBehavior(viewtrans); keyNavBeh.setSchedulingBounds(bounds); // PlatformGeometry platformGeom = new PlatformGeometry(); // platformGeom.addChild(keyNavBeh); // universe.getViewingPlatform().setPlatformGeometry(platformGeom);
BranchGroup bg = new BranchGroup(); bg.addChild(keyNavBeh); universe.addBranchGraph(bg);
objRoot.addChild(createView()); objRoot.addChild(createGalaxies(8.0f, "model/Sombrero.png")); objRoot.addChild(createGalaxies(8.0f, "model/Spiral_Ursa_Major.png")); objRoot.addChild(createGalaxies(8.0f, "model/Spiral_Eridanus.png"));
/* * Background background = new Background(); background.setColor(1.0f, * 1.0f, 1.0f); background.setApplicationBounds(bounds); * objRoot.addChild(background); */
return objRoot; }
private BranchGroup createView() {
BranchGroup objRoot = new BranchGroup(); tg = new TransformGroup();
view = new MovingView(); tg.addChild(view);
objRoot.addChild(tg); objRoot.addChild(createLight());
objRoot.compile();
return objRoot;
}
public BranchGroup createGalaxies(float size, String filename) {
BranchGroup root = new BranchGroup(); TransformGroup tg = new TransformGroup(); Transform3D t3d = new Transform3D();
t3d.setTranslation(new Vector3d(0.0, 0.0, -250.0)); tg.setTransform(t3d);
Appearance app = new Appearance();
TransparencyAttributes ta = new TransparencyAttributes(); ta.setTransparencyMode(ta.BLENDED); app.setTransparencyAttributes(ta);
TextureLoader loader = new TextureLoader(filename, this); app.setTexture(loader.getTexture());
QuadArray plane = new QuadArray(4, GeometryArray.COORDINATES | GeometryArray.TEXTURE_COORDINATE_2);
Point3f[] p = new Point3f[4]; p[0] = new Point3f(size, size, 0.0f); p[1] = new Point3f(-size, size, 0.0f); p[2] = new Point3f(-size, -size, 0.0f); p[3] = new Point3f(size, -size, 0.0f); plane.setCoordinates(0, p);
TexCoord2f[] q = new TexCoord2f[4]; q[0] = new TexCoord2f(1.0f, 1.0f); q[1] = new TexCoord2f(0.0f, 1.0f); q[2] = new TexCoord2f(0.0f, 0.0f); q[3] = new TexCoord2f(1.0f, 0.0f); plane.setTextureCoordinates(0, 0, q);
OrientedShape3D oriShape = new OrientedShape3D(plane, app, 0, new Point3f(0.0f, 0.0f, 0.0f));
TransformGroup tg_ori = new TransformGroup(); tg_ori.addChild(oriShape);
SharedGroup shared = new SharedGroup(); shared.addChild(tg_ori);
TransformGroup tg_link = null; Transform3D t3d_link = new Transform3D();
for (float x = -30.0f; x <= 30.0f; x += 6.0f) { for (float y = -30.0f; y <= 30.0f; y += 6.0f) { for (float z = -30.0f; z <= 30.0f; z += 6.0f) {
t3d_link.setScale(0.25);
t3d_link.setTranslation(new Vector3d((x - 3.0) * (Math.random() * 50), (y - 3.0) * (Math.random() * 50), (z - 3.0) * (Math.random() * 50)));
tg_link = new TransformGroup(t3d_link);
tg_link.addChild(new Link(shared)); tg.addChild(tg_link); } }
}
root.addChild(tg);
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);
/* * Color3f light1Color = new Color3f(1.0f, 1.0f, 0.9f); Vector3f * light1Direction = new Vector3f(4.0f, -7.0f, -12.0f); * * DirectionalLight light1 = new DirectionalLight(light1Color, * light1Direction); light1.setInfluencingBounds(bounds); * root.addChild(light1); */
root.addChild(createLight());
root.compile();
return root; }
private Light createLight() { DirectionalLight light = new DirectionalLight(true, new Color3f(1.0f, 1.0f, 1.0f), new Vector3f(-0.3f, 0.2f, -1.0f));
light.setInfluencingBounds(new BoundingSphere(new Point3d(), 10000.0));
return light; }
public static void main(String[] args) { Mykeynavbeh applet = new Mykeynavbeh(); Frame frame = new MainFrame(applet, 800, 600); }
public void keyTyped(KeyEvent e) { char key = e.getKeyChar();
if (key == 'd') { cstate = true; view.setEnable(cstate); }
if (key == 's') {
t3dstep.rotY(Math.PI / 32); viewtrans.getTransform(t3d_vt); t3d_vt.get(matrix); t3d_vt.setTranslation(new Vector3d(0.0, 0.0, 0.0)); t3d_vt.mul(t3dstep); t3d_vt.setTranslation(new Vector3d(matrix.m03, matrix.m13, matrix.m23)); viewtrans.setTransform(t3d_vt);
}
if (key == 'f') {
t3dstep.rotY(-Math.PI / 32); viewtrans.getTransform(t3d_vt); t3d_vt.get(matrix); t3d_vt.setTranslation(new Vector3d(0.0, 0.0, 0.0)); t3d_vt.mul(t3dstep); t3d_vt.setTranslation(new Vector3d(matrix.m03, matrix.m13, matrix.m23)); viewtrans.setTransform(t3d_vt);
}
if (key == 'x') { cstate = false; view.setEnable(cstate); }
}
public void keyReleased(KeyEvent e) { }
public void keyPressed(KeyEvent e) { }
class MovingView extends Behavior {
private Transform3D t3dstep = new Transform3D(); private WakeupOnElapsedFrames wakeFrame = null;
public MovingView() {
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 1000.0); this.setSchedulingBounds(bounds); }
public void initialize() { wakeFrame = new WakeupOnElapsedFrames(0); wakeupOn(wakeFrame); }
public void processStimulus(Enumeration criteria) { t3dstep.set(new Vector3d(0.0, 0.0, -0.1f)); viewtrans.getTransform(t3d_vt); t3d_vt.mul(t3dstep); viewtrans.setTransform(t3d_vt);
wakeupOn(wakeFrame); } }
}
import java.applet.*;import java.awt.*;
import javax.media.j3d.*;import javax.vecmath.*;
import com.sun.j3d.utils.applet.MainFrame;import com.sun.j3d.utils.universe.SimpleUniverse;import com.sun.j3d.utils.universe.PlatformGeometry;import com.sun.j3d.utils.behaviors.keyboard.*;
import com.sun.j3d.loaders.Scene;
import java.awt.event.KeyListener;import java.awt.event.KeyEvent;
import com.sun.j3d.utils.image.TextureLoader;
import java.util.*;
public class Mykeynavbeh extends Applet implements KeyListener {
private SimpleUniverse universe = null; private Canvas3D canvas = null; private TransformGroup viewtrans = null; private Transform3D t3d_vt = new Transform3D();
private TransformGroup tg = null; // private Transform3D t3d = null; private Transform3D t3dstep = new Transform3D(); private Matrix4d matrix = new Matrix4d();
private MovingView view = null;
private boolean cstate = false;
public Mykeynavbeh() { setLayout(new BorderLayout()); GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
canvas = new Canvas3D(config); add("Center", canvas); universe = new SimpleUniverse(canvas);
BranchGroup scene = createSceneGraph(); universe.getViewingPlatform().setNominalViewingTransform();
universe.getViewer().getView().setBackClipDistance(500.0);
canvas.addKeyListener(this);
universe.addBranchGraph(scene); }
private BranchGroup createSceneGraph() { BranchGroup objRoot = new BranchGroup();
BoundingSphere bounds = new BoundingSphere(new Point3d(), 10000.0);
viewtrans = universe.getViewingPlatform().getViewPlatformTransform(); universe.getViewer().getView().setDepthBufferFreezeTransparent(false);
KeyNavigatorBehavior keyNavBeh = new KeyNavigatorBehavior(viewtrans); keyNavBeh.setSchedulingBounds(bounds); // PlatformGeometry platformGeom = new PlatformGeometry(); // platformGeom.addChild(keyNavBeh); // universe.getViewingPlatform().setPlatformGeometry(platformGeom);
BranchGroup bg = new BranchGroup(); bg.addChild(keyNavBeh); universe.addBranchGraph(bg);
objRoot.addChild(createView()); objRoot.addChild(createGalaxies(8.0f, "model/Sombrero.png")); objRoot.addChild(createGalaxies(8.0f, "model/Spiral_Ursa_Major.png")); objRoot.addChild(createGalaxies(8.0f, "model/Spiral_Eridanus.png"));
/* * Background background = new Background(); background.setColor(1.0f, * 1.0f, 1.0f); background.setApplicationBounds(bounds); * objRoot.addChild(background); */
return objRoot; }
private BranchGroup createView() {
BranchGroup objRoot = new BranchGroup(); tg = new TransformGroup();
view = new MovingView(); tg.addChild(view);
objRoot.addChild(tg); objRoot.addChild(createLight());
objRoot.compile();
return objRoot;
}
public BranchGroup createGalaxies(float size, String filename) {
BranchGroup root = new BranchGroup(); TransformGroup tg = new TransformGroup(); Transform3D t3d = new Transform3D();
t3d.setTranslation(new Vector3d(0.0, 0.0, -250.0)); tg.setTransform(t3d);
Appearance app = new Appearance();
TransparencyAttributes ta = new TransparencyAttributes(); ta.setTransparencyMode(ta.BLENDED); app.setTransparencyAttributes(ta);
TextureLoader loader = new TextureLoader(filename, this); app.setTexture(loader.getTexture());
QuadArray plane = new QuadArray(4, GeometryArray.COORDINATES | GeometryArray.TEXTURE_COORDINATE_2);
Point3f[] p = new Point3f[4]; p[0] = new Point3f(size, size, 0.0f); p[1] = new Point3f(-size, size, 0.0f); p[2] = new Point3f(-size, -size, 0.0f); p[3] = new Point3f(size, -size, 0.0f); plane.setCoordinates(0, p);
TexCoord2f[] q = new TexCoord2f[4]; q[0] = new TexCoord2f(1.0f, 1.0f); q[1] = new TexCoord2f(0.0f, 1.0f); q[2] = new TexCoord2f(0.0f, 0.0f); q[3] = new TexCoord2f(1.0f, 0.0f); plane.setTextureCoordinates(0, 0, q);
OrientedShape3D oriShape = new OrientedShape3D(plane, app, 0, new Point3f(0.0f, 0.0f, 0.0f));
TransformGroup tg_ori = new TransformGroup(); tg_ori.addChild(oriShape);
SharedGroup shared = new SharedGroup(); shared.addChild(tg_ori);
TransformGroup tg_link = null; Transform3D t3d_link = new Transform3D();
for (float x = -30.0f; x <= 30.0f; x += 6.0f) { for (float y = -30.0f; y <= 30.0f; y += 6.0f) { for (float z = -30.0f; z <= 30.0f; z += 6.0f) {
t3d_link.setScale(0.25);
t3d_link.setTranslation(new Vector3d((x - 3.0) * (Math.random() * 50), (y - 3.0) * (Math.random() * 50), (z - 3.0) * (Math.random() * 50)));
tg_link = new TransformGroup(t3d_link);
tg_link.addChild(new Link(shared)); tg.addChild(tg_link); } }
}
root.addChild(tg);
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);
/* * Color3f light1Color = new Color3f(1.0f, 1.0f, 0.9f); Vector3f * light1Direction = new Vector3f(4.0f, -7.0f, -12.0f); * * DirectionalLight light1 = new DirectionalLight(light1Color, * light1Direction); light1.setInfluencingBounds(bounds); * root.addChild(light1); */
root.addChild(createLight());
root.compile();
return root; }
private Light createLight() { DirectionalLight light = new DirectionalLight(true, new Color3f(1.0f, 1.0f, 1.0f), new Vector3f(-0.3f, 0.2f, -1.0f));
light.setInfluencingBounds(new BoundingSphere(new Point3d(), 10000.0));
return light; }
public static void main(String[] args) { Mykeynavbeh applet = new Mykeynavbeh(); Frame frame = new MainFrame(applet, 800, 600); }
public void keyTyped(KeyEvent e) { char key = e.getKeyChar();
if (key == 'd') { cstate = true; view.setEnable(cstate); }
if (key == 's') {
t3dstep.rotY(Math.PI / 32); viewtrans.getTransform(t3d_vt); t3d_vt.get(matrix); t3d_vt.setTranslation(new Vector3d(0.0, 0.0, 0.0)); t3d_vt.mul(t3dstep); t3d_vt.setTranslation(new Vector3d(matrix.m03, matrix.m13, matrix.m23)); viewtrans.setTransform(t3d_vt);
}
if (key == 'f') {
t3dstep.rotY(-Math.PI / 32); viewtrans.getTransform(t3d_vt); t3d_vt.get(matrix); t3d_vt.setTranslation(new Vector3d(0.0, 0.0, 0.0)); t3d_vt.mul(t3dstep); t3d_vt.setTranslation(new Vector3d(matrix.m03, matrix.m13, matrix.m23)); viewtrans.setTransform(t3d_vt);
}
if (key == 'x') { cstate = false; view.setEnable(cstate); }
}
public void keyReleased(KeyEvent e) { }
public void keyPressed(KeyEvent e) { }
class MovingView extends Behavior {
private Transform3D t3dstep = new Transform3D(); private WakeupOnElapsedFrames wakeFrame = null;
public MovingView() {
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 1000.0); this.setSchedulingBounds(bounds); }
public void initialize() { wakeFrame = new WakeupOnElapsedFrames(0); wakeupOn(wakeFrame); }
public void processStimulus(Enumeration criteria) { t3dstep.set(new Vector3d(0.0, 0.0, -0.1f)); viewtrans.getTransform(t3d_vt); t3d_vt.mul(t3dstep); viewtrans.setTransform(t3d_vt);
wakeupOn(wakeFrame); } }
}
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