Java tutorial
/* * @(#)PickText3DGeometry.java 1.14 02/10/21 13:49:47 * * 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.Font; import java.awt.GraphicsConfiguration; import javax.media.j3d.AmbientLight; import javax.media.j3d.Appearance; import javax.media.j3d.Background; import javax.media.j3d.BoundingSphere; import javax.media.j3d.BranchGroup; import javax.media.j3d.Canvas3D; import javax.media.j3d.ColoringAttributes; import javax.media.j3d.Font3D; import javax.media.j3d.FontExtrusion; import javax.media.j3d.Geometry; import javax.media.j3d.Light; import javax.media.j3d.Material; import javax.media.j3d.PointLight; import javax.media.j3d.Shape3D; import javax.media.j3d.Text3D; import javax.media.j3d.Transform3D; import javax.media.j3d.TransformGroup; import javax.vecmath.Color3f; import javax.vecmath.Point3d; import javax.vecmath.Point3f; import javax.vecmath.Vector3d; import com.sun.j3d.utils.applet.MainFrame; import com.sun.j3d.utils.geometry.Sphere; import com.sun.j3d.utils.picking.PickTool; import com.sun.j3d.utils.picking.behaviors.PickRotateBehavior; import com.sun.j3d.utils.picking.behaviors.PickTranslateBehavior; import com.sun.j3d.utils.picking.behaviors.PickZoomBehavior; import com.sun.j3d.utils.universe.SimpleUniverse; public class PickText3DGeometry extends Applet { private SimpleUniverse u = null; public BranchGroup createSceneGraph(Canvas3D canvas) { Color3f eColor = new Color3f(0.0f, 0.0f, 0.0f); Color3f sColor = new Color3f(1.0f, 1.0f, 1.0f); Color3f objColor = new Color3f(0.6f, 0.6f, 0.6f); Color3f lColor1 = new Color3f(1.0f, 0.0f, 0.0f); Color3f lColor2 = new Color3f(0.0f, 1.0f, 0.0f); Color3f alColor = new Color3f(0.2f, 0.2f, 0.2f); Color3f bgColor = new Color3f(0.05f, 0.05f, 0.2f); Transform3D t; // 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 lights BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0); // Set up the background Background bg = new Background(bgColor); bg.setApplicationBounds(bounds); objScale.addChild(bg); Material m = new Material(objColor, eColor, objColor, sColor, 100.0f); Appearance a = new Appearance(); m.setLightingEnable(true); a.setMaterial(m); Font3D f3d = new Font3D(new Font("TestFont", Font.PLAIN, 1), new FontExtrusion()); Text3D text3D = new Text3D(f3d, new String("TEXT3D"), new Point3f(-2.0f, 0.7f, 0.0f)); text3D.setCapability(Geometry.ALLOW_INTERSECT); Shape3D s3D1 = new Shape3D(); s3D1.setGeometry(text3D); s3D1.setAppearance(a); // Create a 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 spinTg1 = new TransformGroup(); spinTg1.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); spinTg1.setCapability(TransformGroup.ALLOW_TRANSFORM_READ); spinTg1.setCapability(TransformGroup.ENABLE_PICK_REPORTING); spinTg1.addChild(s3D1); objScale.addChild(spinTg1); Text3D pick = new Text3D(f3d, new String("Pick me"), new Point3f(-2.0f, -0.7f, 0.0f)); pick.setCapability(Geometry.ALLOW_INTERSECT); Shape3D s3D2 = new Shape3D(); s3D2.setGeometry(pick); s3D2.setAppearance(a); // Create a 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 spinTg2 = new TransformGroup(); spinTg2.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); spinTg2.setCapability(TransformGroup.ALLOW_TRANSFORM_READ); spinTg2.setCapability(TransformGroup.ENABLE_PICK_REPORTING); spinTg2.addChild(s3D2); objScale.addChild(spinTg2); // Create the transform group node for the each light and initialize // it to the identity. Enable the TRANSFORM_WRITE capability so that // our behavior code can modify it at runtime. Add them to the root // of the subgraph. // Create transformations for the positional lights t = new Transform3D(); Vector3d lPos1 = new Vector3d(0.0, 0.0, 2.0); t.set(lPos1); TransformGroup l1Trans = new TransformGroup(t); l1Trans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); l1Trans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ); l1Trans.setCapability(TransformGroup.ENABLE_PICK_REPORTING); objScale.addChild(l1Trans); t = new Transform3D(); Vector3d lPos2 = new Vector3d(0.5, 1.2, 2.0); t.set(lPos2); TransformGroup l2Trans = new TransformGroup(t); l2Trans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); l2Trans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ); l2Trans.setCapability(TransformGroup.ENABLE_PICK_REPORTING); objScale.addChild(l2Trans); // Create Geometry for point lights ColoringAttributes caL1 = new ColoringAttributes(); ColoringAttributes caL2 = new ColoringAttributes(); caL1.setColor(lColor1); caL2.setColor(lColor2); Appearance appL1 = new Appearance(); Appearance appL2 = new Appearance(); appL1.setColoringAttributes(caL1); appL2.setColoringAttributes(caL2); l1Trans.addChild(new Sphere(0.05f, Sphere.GENERATE_NORMALS | Sphere.ENABLE_GEOMETRY_PICKING, 15, appL1)); l2Trans.addChild(new Sphere(0.05f, Sphere.GENERATE_NORMALS | Sphere.ENABLE_GEOMETRY_PICKING, 15, appL2)); // Create lights AmbientLight aLgt = new AmbientLight(alColor); Light lgt1; Light lgt2; Point3f lPoint = new Point3f(0.0f, 0.0f, 0.0f); Point3f atten = new Point3f(1.0f, 0.0f, 0.0f); lgt1 = new PointLight(lColor1, lPoint, atten); lgt2 = new PointLight(lColor2, lPoint, atten); // Set the influencing bounds aLgt.setInfluencingBounds(bounds); lgt1.setInfluencingBounds(bounds); lgt2.setInfluencingBounds(bounds); // Add the lights into the scene graph objScale.addChild(aLgt); l1Trans.addChild(lgt1); l2Trans.addChild(lgt2); PickRotateBehavior behavior1 = new PickRotateBehavior(objRoot, canvas, bounds); behavior1.setMode(PickTool.GEOMETRY); behavior1.setTolerance(0.0f); objRoot.addChild(behavior1); PickZoomBehavior behavior2 = new PickZoomBehavior(objRoot, canvas, bounds); behavior2.setMode(PickTool.GEOMETRY); behavior2.setTolerance(0.0f); objRoot.addChild(behavior2); PickTranslateBehavior behavior3 = new PickTranslateBehavior(objRoot, canvas, bounds); behavior3.setMode(PickTool.GEOMETRY); behavior3.setTolerance(0.0f); objRoot.addChild(behavior3); // Let Java 3D perform optimizations on this scene graph. objRoot.compile(); return objRoot; } public PickText3DGeometry() { } public void init() { setLayout(new BorderLayout()); GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration(); Canvas3D c = new Canvas3D(config); add("Center", c); u = new SimpleUniverse(c); BranchGroup scene = createSceneGraph(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 Text3DMotion to be run as an application // as well as an applet // public static void main(String[] args) { new MainFrame(new PickText3DGeometry(), 700, 700); } }