This Java tip shows how to use Axis class in Java3D.

 import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Frame;

import javax.vecmath.Point3d;
import javax.vecmath.Point3f;
import javax.vecmath.Vector3f;

import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.universe.SimpleUniverse;

public class AxisClassDemoApp extends Applet {

  // create scene graph branch group
  public BranchGroup createSceneGraph() {

    BranchGroup objRoot = new BranchGroup();
    objRoot.addChild(new Axis());

    // Create the transform group node and initialize it to the
    // identity. Enable the TRANSFORM_WRITE capability so that
    // our behavior code can modify it at runtime. Add it to the
    // root of the subgraph.
    TransformGroup objSpin = new TransformGroup();

    // Create a new Behavior object that will perform the desired
    // operation on the specified transform object and add it into
    // the scene graph.
    Transform3D yAxis = new Transform3D();
    Alpha rotationAlpha = new Alpha(-1, 4000);

    RotationInterpolator rotator = new RotationInterpolator(rotationAlpha,
    BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0),

    Transform3D trans = new Transform3D();
    trans.set(new Vector3f(0.5f, 0.0f, 0.0f));
    TransformGroup objTrans = new TransformGroup(trans);
    objTrans.addChild(new ColorCube(0.1));

    // Let Java 3D perform optimizations on this scene graph.

    return objRoot;
  } // end of CreateSceneGraph method of AxisClassDemoApp

  // Create a simple scene and attach it to the virtual universe

  public AxisClassDemoApp() {
    setLayout(new BorderLayout());
    Canvas3D canvas3D = new Canvas3D(null);
    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.

  } // end of AxisClassDemoApp 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 AxisClassDemoApp(), 256, 256);
  } // end of main method of AxisClassDemoApp

} // end of class AxisClassDemoApp

 * Getting Started with the Java 3D API written in Java 3D
 * This program demonstrates: 1. writing a visual object class In this program,
 * Axis class defines a visual object This particular class extends Shape3D See
 * the text for a discussion. 2. Using LineArray to draw 3D lines.

class Axis extends Shape3D {

  // create axis visual object
  public Axis() {



  private Geometry createGeometry() {
    // create line for X axis
    IndexedLineArray axisLines = new IndexedLineArray(18,
        GeometryArray.COORDINATES, 30);

    axisLines.setCoordinate(0, new Point3f(-1.0f, 0.0f, 0.0f));
    axisLines.setCoordinate(1, new Point3f(1.0f, 0.0f, 0.0f));
    axisLines.setCoordinate(2, new Point3f(0.9f, 0.1f, 0.1f));
    axisLines.setCoordinate(3, new Point3f(0.9f, -0.1f, 0.1f));
    axisLines.setCoordinate(4, new Point3f(0.9f, 0.1f, -0.1f));
    axisLines.setCoordinate(5, new Point3f(0.9f, -0.1f, -0.1f));
    axisLines.setCoordinate(6, new Point3f(0.0f, -1.0f, 0.0f));
    axisLines.setCoordinate(7, new Point3f(0.0f, 1.0f, 0.0f));
    axisLines.setCoordinate(8, new Point3f(0.1f, 0.9f, 0.1f));
    axisLines.setCoordinate(9, new Point3f(-0.1f, 0.9f, 0.1f));
    axisLines.setCoordinate(10, new Point3f(0.1f, 0.9f, -0.1f));
    axisLines.setCoordinate(11, new Point3f(-0.1f, 0.9f, -0.1f));
    axisLines.setCoordinate(12, new Point3f(0.0f, 0.0f, -1.0f));
    axisLines.setCoordinate(13, new Point3f(0.0f, 0.0f, 1.0f));
    axisLines.setCoordinate(14, new Point3f(0.1f, 0.1f, 0.9f));
    axisLines.setCoordinate(15, new Point3f(-0.1f, 0.1f, 0.9f));
    axisLines.setCoordinate(16, new Point3f(0.1f, -0.1f, 0.9f));
    axisLines.setCoordinate(17, new Point3f(-0.1f, -0.1f, 0.9f));

    axisLines.setCoordinateIndex(0, 0);
    axisLines.setCoordinateIndex(1, 1);
    axisLines.setCoordinateIndex(2, 2);
    axisLines.setCoordinateIndex(3, 1);
    axisLines.setCoordinateIndex(4, 3);
    axisLines.setCoordinateIndex(5, 1);
    axisLines.setCoordinateIndex(6, 4);
    axisLines.setCoordinateIndex(7, 1);
    axisLines.setCoordinateIndex(8, 5);
    axisLines.setCoordinateIndex(9, 1);
    axisLines.setCoordinateIndex(10, 6);
    axisLines.setCoordinateIndex(11, 7);
    axisLines.setCoordinateIndex(12, 8);
    axisLines.setCoordinateIndex(13, 7);
    axisLines.setCoordinateIndex(14, 9);
    axisLines.setCoordinateIndex(15, 7);
    axisLines.setCoordinateIndex(16, 10);
    axisLines.setCoordinateIndex(17, 7);
    axisLines.setCoordinateIndex(18, 11);
    axisLines.setCoordinateIndex(19, 7);
    axisLines.setCoordinateIndex(20, 12);
    axisLines.setCoordinateIndex(21, 13);
    axisLines.setCoordinateIndex(22, 14);
    axisLines.setCoordinateIndex(23, 13);
    axisLines.setCoordinateIndex(24, 15);
    axisLines.setCoordinateIndex(25, 13);
    axisLines.setCoordinateIndex(26, 16);
    axisLines.setCoordinateIndex(27, 13);
    axisLines.setCoordinateIndex(28, 17);
    axisLines.setCoordinateIndex(29, 13);

    return axisLines;  } // end of Axis createGeometry()

} // end of class Axis