Java tutorial
/* * @(#)ModelClipTest.java 1.10 02/10/21 13:45:01 * * 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.GraphicsConfiguration; import javax.media.j3d.Appearance; import javax.media.j3d.BoundingSphere; import javax.media.j3d.BranchGroup; import javax.media.j3d.Canvas3D; import javax.media.j3d.DirectionalLight; import javax.media.j3d.Material; import javax.media.j3d.ModelClip; import javax.media.j3d.PolygonAttributes; import javax.media.j3d.Transform3D; import javax.media.j3d.TransformGroup; import javax.vecmath.Color3f; import javax.vecmath.Point3d; import javax.vecmath.Vector3f; import javax.vecmath.Vector4d; import com.sun.j3d.utils.applet.MainFrame; import com.sun.j3d.utils.behaviors.mouse.MouseRotate; import com.sun.j3d.utils.behaviors.mouse.MouseZoom; import com.sun.j3d.utils.geometry.Cylinder; import com.sun.j3d.utils.universe.SimpleUniverse; /** * ModelClipTest draws a cylinder and creates two clip planes to see the * interior of the cylinder. */ public class ModelClipTest extends Applet { private SimpleUniverse u = null; public BranchGroup createSceneGraph() { // Create the root of the branch graph BranchGroup objRoot = new BranchGroup(); BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0); // 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); // This Transformgroup is used by the mouse manipulators to // move the CYlinder. TransformGroup objTrans = new TransformGroup(); objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ); objScale.addChild(objTrans); //Create Model Clip ModelClip mc = new ModelClip(); boolean enables[] = { false, false, false, false, false, false }; Vector4d eqn1 = new Vector4d(0.0, 1.0, 0.0, 0.0); Vector4d eqn2 = new Vector4d(1.0, 1.0, 0.0, 0.0); mc.setEnables(enables); mc.setPlane(1, eqn1); mc.setPlane(2, eqn2); mc.setEnable(1, true); mc.setEnable(2, true); mc.setInfluencingBounds(bounds); objTrans.addChild(mc); //Create a cylinder PolygonAttributes attr = new PolygonAttributes(); attr.setCullFace(PolygonAttributes.CULL_NONE); Appearance ap = new Appearance(); Material mat = new Material(); mat.setLightingEnable(true); ap.setMaterial(mat); ap.setPolygonAttributes(attr); Cylinder CylinderObj = new Cylinder(1.0f, 2.0f, ap); objTrans.addChild(CylinderObj); // Create the rotate behavior node MouseRotate behavior = new MouseRotate(objTrans); objTrans.addChild(behavior); behavior.setSchedulingBounds(bounds); // Create the zoom behavior node MouseZoom behavior2 = new MouseZoom(objTrans); objTrans.addChild(behavior2); behavior2.setSchedulingBounds(bounds); //Shine it with two colored lights. Color3f lColor1 = new Color3f(0.5f, 0.0f, 0.5f); Color3f lColor2 = new Color3f(0.7f, 0.7f, 0.0f); Vector3f lDir1 = new Vector3f(-1.0f, -1.0f, 1.0f); Vector3f lDir2 = new Vector3f(0.0f, 0.0f, -1.0f); DirectionalLight lgt1 = new DirectionalLight(lColor1, lDir1); DirectionalLight lgt2 = new DirectionalLight(lColor2, lDir2); lgt1.setInfluencingBounds(bounds); lgt2.setInfluencingBounds(bounds); objScale.addChild(lgt1); objScale.addChild(lgt2); // Let Java 3D perform optimizations on this scene graph. objRoot.compile(); return objRoot; } public ModelClipTest() { } public void init() { 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(); 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(); } public static void main(String argv[]) { BranchGroup group; new MainFrame(new ModelClipTest(), 500, 500); } }