import java.awt.BorderLayout;
import java.awt.Frame;
import javax.media.j3d.Alpha;
import javax.media.j3d.BoundingSphere;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.RotationInterpolator;
import javax.media.j3d.TransformGroup;
import javax.vecmath.Point3d;
import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.universe.SimpleUniverse;
public class HelloWorld {
public static void main(String[] args) {
Frame frame = new Frame();
frame.setSize(640, 480);
frame.setLayout(new BorderLayout());
Canvas3D canvas = new Canvas3D(null);
frame.add("Center", canvas);
SimpleUniverse univ = new SimpleUniverse(canvas);
univ.getViewingPlatform().setNominalViewingTransform();
BranchGroup scene = createSceneGraph();
scene.compile();
univ.addBranchGraph(scene);
frame.show();
}
private static BranchGroup createSceneGraph() {
// Make a scene graph branch
BranchGroup branch = new BranchGroup();
// Make a changeable 3D transform
TransformGroup trans = new TransformGroup();
trans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
branch.addChild(trans);
// Make a shape
ColorCube demo = new ColorCube(0.4);
trans.addChild(demo);
// Make a behavor to spin the shape
Alpha spinAlpha = new Alpha(-1, 4000);
RotationInterpolator spinner = new RotationInterpolator(spinAlpha,
trans);
spinner.setSchedulingBounds(new BoundingSphere(new Point3d(), 1000.0));
trans.addChild(spinner);
return branch;
}
}
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