hellojava3db.java

java 3d 基础

import java.applet.Applet;   
import java.awt.BorderLayout;   
import java.awt.Frame;   
import java.awt.GraphicsConfiguration;   
import com.sun.j3d.utils.applet.MainFrame;    
import com.sun.j3d.utils.geometry.ColorCube;   
import com.sun.j3d.utils.universe.*;   
import javax.media.j3d.*;   
//   HelloJava3Db renders a single, rotated cube.     
public class HelloJava3Db extends Applet {   
    public BranchGroup createSceneGraph() {   
    // Create the root of the branch graph   
    BranchGroup objRoot = new BranchGroup();   
  
    // rotate object has composited transformation matrix   
    Transform3D rotate = new Transform3D();   
    Transform3D tempRotate = new Transform3D();   
        rotate.rotX(Math.PI/4.0d);   
    tempRotate.rotY(Math.PI/5.0d);   
        rotate.mul(tempRotate);   
    TransformGroup objRotate = new TransformGroup(rotate);   
  
    objRoot.addChild(objRotate);   
    objRotate.addChild(new ColorCube(0.4));   
    // Let Java 3D perform optimizations on this scene graph.   
        objRoot.compile();   
    return objRoot;   
    } // end of CreateSceneGraph method of HelloJava3Db   
    // Create a simple scene and attach it to the virtual universe   
    public HelloJava3Db() {   
        setLayout(new BorderLayout());   
        GraphicsConfiguration config =   
           SimpleUniverse.getPreferredConfiguration();   
        Canvas3D canvas3D = new Canvas3D(config);   
        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 HelloJava3Db (constructor)   
    //  The following allows this to be run as an application   
    //  as well as an applet   
  
    public static void main(String[] args) {   
    Frame frame = new MainFrame(new HelloJava3Db(), 256, 256);   
    } // end of main (method of HelloJava3Db)   
  
} // end of class HelloJava3Db