Hi, Everyone,
I modified the HelloJava3Da, I add two ColorCube into the same BG, translate
them into different spot. It seems only the last added ColorCube is shown. I
don't know what is wrong with it? Could anybody please help me? Thanks a
lot!
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import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.event.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.geometry.ColorCube;
import javax.media.j3d.*;
import javax.vecmath.*;
public class HelloJava3Da extends Applet {
public HelloJava3Da() {
setLayout(new BorderLayout());
//GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
Canvas3D canvas3D = new
Canvas3D(SimpleUniverse.getPreferredConfiguration());
add("Center", canvas3D);
BranchGroup scene = createSceneGraph();
scene.compile();
// SimpleUniverse is a Convenience Utility class
SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
// This moves the ViewPlatform back a bit so the
// objects in the scene can be viewed.
simpleU.getViewingPlatform().setNominalViewingTransform();
simpleU.addBranchGraph(scene);
} // end of HelloJava3Da (constructor)
public BranchGroup createSceneGraph() {
// Create the root of the branch graph
BranchGroup objRoot = new BranchGroup();
// Create two simple shape leaf nodes, add to the scene graph.
// ColorCube is a Convenience Utility class
ColorCube cb1 = new ColorCube(0.4);
ColorCube cb2 = new ColorCube(0.2);
Transform3D translate1 = new Transform3D();
translate1.set(new Vector3f(0.0f, 3.0f, 0.0f));
TransformGroup t1 = new TransformGroup(translate1);
objRoot.addChild(t1);
t1.addChild(cb1);
Transform3D translate2 = new Transform3D();
translate2.set(new Vector3f(0.0f, -0.1f, 0.0f));
TransformGroup t2 = new TransformGroup(translate2);
objRoot.addChild(t2);
t2.addChild(cb2);
return objRoot;
} // end of createSceneGraph method of HelloJava3Da
public static void main(String[] args) {
Frame frame = new MainFrame(new HelloJava3Da(), 256, 256);
} // end of main (method of HelloJava3Da)
} // end of class HelloJava3Da
grace
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HelloJava3Da.java
