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-/*
- * $RCSfile$
- *
- * Copyright (c) 2006 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:
- *
- * - Redistribution 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 MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
- * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
- * USING, MODIFYING OR DISTRIBUTING THIS 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 THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed, licensed or
- * intended for use in the design, construction, operation or
- * maintenance of any nuclear facility.
- *
- * $Revision$
- * $Date$
- * $State$
- */
-
-import com.sun.j3d.utils.behaviors.mouse.*;
-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 javax.media.j3d.*;
-import javax.vecmath.*;
-import java.lang.Integer;
-import com.sun.j3d.utils.behaviors.vp.*;
-
-public class GearBox extends Applet {
-
- static final int defaultToothCount = 48;
- private int toothCount;
- private SimpleUniverse u = null;
-
- public BranchGroup createGearBox(int toothCount) {
- Transform3D tempTransform = new Transform3D();
-
- // Create the root of the branch graph
- BranchGroup branchRoot = createBranchEnvironment();
-
- // 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);
- branchRoot.addChild(objScale);
-
- // Create an Appearance.
- Appearance look = new Appearance();
- Color3f objColor = new Color3f(0.5f, 0.5f, 0.6f);
- Color3f black = new Color3f(0.0f, 0.0f, 0.0f);
- Color3f white = new Color3f(1.0f, 1.0f, 1.0f);
- look.setMaterial(new Material(objColor, black,
- objColor, white, 100.0f));
-
-
- // Create the transform group 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 gearboxTrans = new TransformGroup();
- gearboxTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
- gearboxTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
- objScale.addChild(gearboxTrans);
-
- // Create a bounds for the mouse behavior methods
- BoundingSphere bounds =
- new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
-
- // Define the shaft base information
- int shaftCount = 4;
- int secondsPerRevolution = 8000;
-
- // Create the Shaft(s)
- Shaft shafts[] = new Shaft[shaftCount];
- TransformGroup shaftTGs[] = new TransformGroup[shaftCount];
- Alpha shaftAlphas[] = new Alpha[shaftCount];
- RotationInterpolator shaftRotors[]
- = new RotationInterpolator[shaftCount];
- Transform3D shaftAxis[] = new Transform3D[shaftCount];
-
- // Note: the following arrays we're incorporated to make changing
- // the gearbox easier.
- float shaftRatios[] = new float[shaftCount];
- shaftRatios[0] = 1.0f;
- shaftRatios[1] = 0.5f;
- shaftRatios[2] = 0.75f;
- shaftRatios[3] = 5.0f;
-
- float shaftRadius[] = new float[shaftCount];
- shaftRadius[0] = 0.2f;
- shaftRadius[1] = 0.2f;
- shaftRadius[2] = 0.2f;
- shaftRadius[3] = 0.2f;
-
- float shaftLength[] = new float[shaftCount];
- shaftLength[0] = 1.8f;
- shaftLength[1] = 0.8f;
- shaftLength[2] = 0.8f;
- shaftLength[3] = 0.8f;
-
- float shaftDirection[] = new float[shaftCount];
- shaftDirection[0] = 1.0f;
- shaftDirection[1] = -1.0f;
- shaftDirection[2] = 1.0f;
- shaftDirection[3] = -1.0f;
-
- Vector3d shaftPlacement[] = new Vector3d[shaftCount];
- shaftPlacement[0] = new Vector3d(-0.75, -0.9, 0.0);
- shaftPlacement[1] = new Vector3d(0.75, -0.9, 0.0);
- shaftPlacement[2] = new Vector3d(0.75, 0.35, 0.0);
- shaftPlacement[3] = new Vector3d(-0.75, 0.60, -0.7);
-
- // Create the shafts.
- for(int i = 0; i < shaftCount; i++) {
- shafts[i] = new Shaft(shaftRadius[i], shaftLength[i], 25, look);
- }
-
- // Create a transform group node for placing each shaft
- for(int i = 0; i < shaftCount; i++) {
- shaftTGs[i] = new TransformGroup();
- gearboxTrans.addChild(shaftTGs[i]);
- shaftTGs[i].getTransform(tempTransform);
- tempTransform.setTranslation(shaftPlacement[i]);
- shaftTGs[i].setTransform(tempTransform);
- shaftTGs[i].addChild(shafts[i]);
- }
-
- // Add rotation interpolators to rotate the shaft in the appropriate
- // direction and at the appropriate rate
- for(int i = 0; i < shaftCount; i++) {
- shaftAlphas[i] = new Alpha(-1, Alpha.INCREASING_ENABLE, 0, 0,
- (long)(secondsPerRevolution
- * shaftRatios[i]),
- 0, 0,
- 0, 0, 0);
- shaftAxis[i] = new Transform3D();
- shaftAxis[i].rotX(Math.PI/2.0);
- shaftRotors[i]
- = new RotationInterpolator(shaftAlphas[i], shafts[i],
- shaftAxis[i],
- 0.0f,
- shaftDirection[i] *
- (float) Math.PI * 2.0f);
- shaftRotors[i].setSchedulingBounds(bounds);
- shaftTGs[i].addChild(shaftRotors[i]);
- }
-
- // Define the gear base information. Again, these arrays exist to
- // make the process of changing the GearBox via an editor faster
- int gearCount = 5;
- float valleyToCircularPitchRatio = .15f;
- float pitchCircleRadius = 1.0f;
- float addendum = 0.05f;
- float dedendum = 0.05f;
- float gearThickness = 0.3f;
- float toothTipThickness = 0.27f;
-
- // Create an array of gears and their associated information
- SpurGear gears[] = new SpurGear[gearCount];
- TransformGroup gearTGs[] = new TransformGroup[gearCount];
-
- int gearShaft[] = new int[gearCount];
- gearShaft[0] = 0;
- gearShaft[1] = 1;
- gearShaft[2] = 2;
- gearShaft[3] = 0;
- gearShaft[4] = 3;
-
- float ratio[] = new float[gearCount];
- ratio[0] = 1.0f;
- ratio[1] = 0.5f;
- ratio[2] = 0.75f;
- ratio[3] = 0.25f;
- ratio[4] = 1.25f;
-
- Vector3d placement[] = new Vector3d[gearCount];
- placement[0] = new Vector3d(0.0, 0.0, 0.0);
- placement[1] = new Vector3d(0.0, 0.0, 0.0);
- placement[2] = new Vector3d(0.0, 0.0, 0.0);
- placement[3] = new Vector3d(0.0, 0.0, -0.7);
- placement[4] = new Vector3d(0.0, 0.0, 0.0);
-
- // Create the gears.
- for(int i = 0; i < gearCount; i++) {
- gears[i]
- = new SpurGearThinBody(((int)((float)toothCount * ratio[i])),
- pitchCircleRadius * ratio[i],
- shaftRadius[0],
- addendum, dedendum,
- gearThickness,
- toothTipThickness,
- valleyToCircularPitchRatio, look);
- }
-
- // Create a transform group node for arranging the gears on a shaft
- // and attach the gear to its associated shaft
- for(int i = 0; i < gearCount; i++) {
- gearTGs[i] = new TransformGroup();
- gearTGs[i].getTransform(tempTransform);
- tempTransform.rotZ((shaftDirection[gearShaft[i]] == -1.0) ?
- gears[i].getCircularPitchAngle()/-2.0f :
- 0.0f);
- tempTransform.setTranslation(placement[i]);
- gearTGs[i].setTransform(tempTransform);
- gearTGs[i].addChild(gears[i]);
- shafts[gearShaft[i]].addChild(gearTGs[i]);
- }
-
- // Have Java 3D perform optimizations on this scene graph.
- branchRoot.compile();
-
- return branchRoot;
- }
-
- BranchGroup createBranchEnvironment(){
- // Create the root of the branch graph
- BranchGroup branchRoot = new BranchGroup();
-
- // Create a bounds for the background and lights
- 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, 0.5f);
- Background bgNode = new Background(bgColor);
- bgNode.setApplicationBounds(bounds);
- branchRoot.addChild(bgNode);
-
- // Set up the ambient light
- Color3f ambientColor = new Color3f(0.1f, 0.1f, 0.1f);
- AmbientLight ambientLightNode = new AmbientLight(ambientColor);
- ambientLightNode.setInfluencingBounds(bounds);
- branchRoot.addChild(ambientLightNode);
-
- // Set up the directional lights
- Color3f light1Color = new Color3f(1.0f, 1.0f, 0.9f);
- Vector3f light1Direction = new Vector3f(1.0f, 1.0f, 1.0f);
- Color3f light2Color = new Color3f(1.0f, 1.0f, 0.9f);
- Vector3f light2Direction = new Vector3f(-1.0f, -1.0f, -1.0f);
-
- DirectionalLight light1
- = new DirectionalLight(light1Color, light1Direction);
- light1.setInfluencingBounds(bounds);
- branchRoot.addChild(light1);
-
- DirectionalLight light2
- = new DirectionalLight(light2Color, light2Direction);
- light2.setInfluencingBounds(bounds);
- branchRoot.addChild(light2);
-
- return branchRoot;
- }
-
- public GearBox() {
- this(defaultToothCount);
- }
-
- public GearBox(int toothCount) {
- this.toothCount = toothCount;
- }
-
- public void init() {
- setLayout(new BorderLayout());
- GraphicsConfiguration config =
- SimpleUniverse.getPreferredConfiguration();
-
- Canvas3D c = new Canvas3D(config);
- add("Center", c);
-
- // Create the gearbox and attach it to the virtual universe
- BranchGroup scene = createGearBox(toothCount);
- u = new SimpleUniverse(c);
-
- // add mouse behaviors to the ViewingPlatform
- ViewingPlatform viewingPlatform = u.getViewingPlatform();
-
- // This will move the ViewPlatform back a bit so the
- // objects in the scene can be viewed.
- viewingPlatform.setNominalViewingTransform();
-
- // add orbit behavior to the ViewingPlatform
- OrbitBehavior orbit = new OrbitBehavior(c, OrbitBehavior.REVERSE_ALL);
- BoundingSphere bounds =
- new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);
- orbit.setSchedulingBounds(bounds);
- viewingPlatform.setViewPlatformBehavior(orbit);
-
- u.addBranchGraph(scene);
- }
-
- public void destroy() {
- u.cleanup();
- }
-
- //
- // The following allows GearBox to be run as an application
- // as well as an applet
- //
- public static void main(String[] args) {
- int value;
-
- if (args.length > 1) {
- System.out.println("Usage: java GearBox #teeth (LCD 4)");
- System.exit(0);
- } else if (args.length == 0) {
- new MainFrame(new GearBox(), 700, 700);
- } else
- {
- try{
- value = Integer.parseInt(args[0]);
- } catch (NumberFormatException e) {
- System.out.println("Illegal integer specified");
- System.out.println("Usage: java GearBox #teeth (LCD 4)");
- value = 0;
- System.exit(0);
- }
- if (value <= 0 | (value % 4) != 0) {
- System.out.println("Integer not a positive multiple of 4");
- System.out.println("Usage: java GearBox #teeth (LCD 4)");
- System.exit(0);
- }
- new MainFrame(new GearBox(value), 700, 700);
- }
- }
-}
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