membuat kubus dengan java

import java.awt.*;
import javax.swing.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.geometry.*;
import com.sun.j3d.utils.behaviors.mouse.*;
import com.sun.j3d.utils.universe.SimpleUniverse;
import com.sun.j3d.utils.geometry.ColorCube;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.media.j3d.Canvas3D;
import javax.swing.JFrame;

public class RotasiMouse extends JFrame {
public RotasiMouse() {
super("Demo Rotasi Kubus");
Canvas3D canvas3D = createCanvas3D();
BranchGroup scene = createSceneGraph();
connect(canvas3D, scene);
}

// 1. Menciptakan kanvas 3D
private Canvas3D createCanvas3D() {
setSize(300, 300);
getContentPane().setLayout(new BorderLayout());
GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
Canvas3D canvas3D = new Canvas3D(config);
setSize(300, 300);
getContentPane().add(canvas3D);
return canvas3D;
}
// Menciptakan scene graph
private BranchGroup createSceneGraph() {
// Menciptakan transformasi group
Transform3D transform = new Transform3D();
transform.set(new Vector3d(0.0, 0.0, -50.0));
TransformGroup tg = new TransformGroup(transform);

// Transformasi sumbu X
Transform3D rotXTransform = new Transform3D();
rotXTransform.rotX(Math.toRadians(20.0));

// Transformasi sumbu Y
Transform3D rotYTransform = new Transform3D();
rotYTransform.rotY(Math.toRadians(20.0));

// Kombinasi rotasi ke dalam transformasi
Transform3D rtf = new Transform3D(rotXTransform);
rtf.mul(rotYTransform);
TransformGroup rg = new TransformGroup(rtf);
tg.addChild(rg);
ColorCube cube = new ColorCube(7.0f);
BranchGroup objRoot = new BranchGroup();
rg.addChild(cube);

// Menciptakan handler/behavior mouse rotate
rg.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
rg.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
MouseRotate mr = new MouseRotate(rg);
mr.setSchedulingBounds(new BoundingSphere(
new Point3d(0, 0, 0), Double.MAX_VALUE));

objRoot.addChild(mr);
objRoot.addChild(tg);
objRoot.compile();
return objRoot;
}
// Mengaitkan kanvas dan branch group
private void connect(Canvas3D canvas3D, BranchGroup scene){
SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
simpleU.getViewingPlatform().
setNominalViewingTransform();
simpleU.addBranchGraph(scene);
}
public static void main(String[] args) {
new RotasiMouse().setVisible(true);
}
}

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