src/edu/mit/ezyang/gravity/j3d/RotateGroup.java

   1 package edu.mit.ezyang.gravity.j3d;
   2
   3 import com.sun.j3d.utils.behaviors.mouse.MouseRotate;
   4 import javax.media.j3d.*;
   5 import javax.vecmath.*;
   6
   7 /**
   8  * Customized TransformGroup class that implements mouse rotations, directional
   9  * lighting and ambient lighting; this is the "frame" in which the universe
  10  * operates, and can be rotated at the user's viewing pleasure.
  11  * @author Edward Z. Yang <ezyang@mit.edu>
  12  */
  13 public class RotateGroup extends TransformGroup {
  14     public RotateGroup() {
  15         setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
  16         setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
  17
  18         BoundingSphere bounds = new BoundingSphere(new Point3d(0f,0f,0f), 1000f);
  19
  20         MouseRotate rotate = new MouseRotate();
  21         rotate.setSchedulingBounds(bounds);
  22         rotate.setTransformGroup(this);
  23         addChild(rotate);
  24
  25         DirectionalLight light = new DirectionalLight(new Color3f(1f, 1f, 1f), new Vector3f(4.0f, -7.0f, 7.0f));
  26         light.setInfluencingBounds(bounds);
  27         addChild(light);
  28
  29         AmbientLight ambLight = new AmbientLight(new Color3f(.6f, .6f, .6f));
  30         ambLight.setInfluencingBounds(bounds);
  31         addChild(ambLight);
  32     }
  33 }