Java tutorial
/* * @(#)Text3DApp.java 1.0 99/04/21 * * Copyright (c) 1996-1999 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.Applet; import java.awt.BorderLayout; import java.awt.Font; import java.awt.Frame; import javax.media.j3d.Alpha; import javax.media.j3d.AmbientLight; import javax.media.j3d.Appearance; import javax.media.j3d.BoundingSphere; import javax.media.j3d.BranchGroup; import javax.media.j3d.Canvas3D; import javax.media.j3d.ColoringAttributes; import javax.media.j3d.DirectionalLight; import javax.media.j3d.Font3D; import javax.media.j3d.FontExtrusion; import javax.media.j3d.Material; import javax.media.j3d.RotationInterpolator; 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.Vector3f; import com.sun.j3d.utils.applet.MainFrame; import com.sun.j3d.utils.universe.SimpleUniverse; /* * Text3DApp renders a single, rotating Text3D Object. The Text3D object has * material properties specified along with lights so that the Text3D object is * shaded. */ public class Text3DApp extends Applet { public BranchGroup createSceneGraph() { // Create the root of the branch graph BranchGroup objRoot = new BranchGroup(); Transform3D t3D = new Transform3D(); t3D.setTranslation(new Vector3f(0.0f, 0.0f, -3.0f)); TransformGroup objMove = new TransformGroup(t3D); objRoot.addChild(objMove); // Create the transform group node and initialize it to the // identity. Add it to the root of the subgraph. TransformGroup objSpin = new TransformGroup(); objSpin.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objMove.addChild(objSpin); Appearance textAppear = new Appearance(); ColoringAttributes textColor = new ColoringAttributes(); textColor.setColor(1.0f, 0.0f, 0.0f); textAppear.setColoringAttributes(textColor); textAppear.setMaterial(new Material()); // Create a simple shape leaf node, add it to the scene graph. Font3D font3D = new Font3D(new Font("Helvetica", Font.PLAIN, 1), new FontExtrusion()); Text3D textGeom = new Text3D(font3D, new String("3DText")); textGeom.setAlignment(Text3D.ALIGN_CENTER); Shape3D textShape = new Shape3D(); textShape.setGeometry(textGeom); textShape.setAppearance(textAppear); objSpin.addChild(textShape); // Create a new Behavior object that will perform the desired // operation on the specified transform object and add it into // the scene graph. Alpha rotationAlpha = new Alpha(-1, 10000); RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, objSpin); // a bounding sphere specifies a region a behavior is active // create a sphere centered at the origin with radius of 100 BoundingSphere bounds = new BoundingSphere(); rotator.setSchedulingBounds(bounds); objSpin.addChild(rotator); DirectionalLight lightD = new DirectionalLight(); lightD.setInfluencingBounds(bounds); lightD.setDirection(new Vector3f(0.0f, 0.0f, -1.0f)); lightD.setColor(new Color3f(1.0f, 0.0f, 1.0f)); objMove.addChild(lightD); AmbientLight lightA = new AmbientLight(); lightA.setInfluencingBounds(bounds); objMove.addChild(lightA); return objRoot; } // end of CreateSceneGraph method public Text3DApp() { setLayout(new BorderLayout()); Canvas3D canvas3D = new Canvas3D(null); canvas3D.setStereoEnable(false); add("Center", canvas3D); BranchGroup scene = createSceneGraph(); // SimpleUniverse is a Convenience Utility class SimpleUniverse simpleU = new SimpleUniverse(canvas3D); // This will move the ViewPlatform back a bit so the // objects in the scene can be viewed. simpleU.getViewingPlatform().setNominalViewingTransform(); simpleU.addBranchGraph(scene); } // end of Text3DApp (constructor) // The following allows this to be run as an application // as well as an applet public static void main(String[] args) { System.out.println("Text3DApp.java - a demonstration of Text3D in Java 3D"); System.out.println("The scene is of a rotating Text3D object."); System.out.println("The Java 3D Tutorial is available on the web at:"); System.out.println("http://www.sun.com/desktop/java3d/collateral"); Frame frame = new MainFrame(new Text3DApp(), 256, 256); } // end of main (method of Text3DApp) } // end of class Text3DApp