Geometry Objects - Interactive Web-Based Virtual Reality with Java 3D - page 74

Figure 50. Code segment and result for Util.java

1. public BranchGroup createSceneGraph()

2. {

3. BranchGroup objRoot = new BranchGroup();

4.

5. Transform3D trans3d = new Transform3D();

6. trans3d.setTranslation(new Vector3f(0.5f,0.5f,-0.5f));

7. TransformGroup trans = new TransformGroup(trans3d);

8. Material material = new Material(new Color3f(0.0f,0.0f,0.0f), new Color3f(0.5f,0.5f,0.0f),

9. new Color3f(0.0f,0.0f,0.0f), new Color3f(1.0f,1.0f,1.0f), 100f);

10. Appearance appearance = new Appearance(); appearance.setMaterial(material);

11. Sphere sphere = new Sphere(0.3f, appearance);

12. objRoot.addChild(trans); trans.addChild(sphere);

13.
14. Material material1 = new Material(new Color3f(0.0f,0.0f,0.0f), new Color3f(0.2f,0.0f,0.9f),

15. new Color3f(0.0f,0.0f,0.0f), new Color3f(1.0f,1.0f,1.0f), 100f);

16. Appearance appearance1 = new Appearance(); appearance1.setMaterial(material1);

17. trans3d.setTranslation(new Vector3f(-0.5f,0.5f,-0.5f));

18. TransformGroup trans1 = new TransformGroup(trans3d);

19. Cylinder cylinder = new Cylinder(0.2f,0.5f, appearance1);

20. objRoot.addChild(trans1); trans1.addChild(cylinder);

21.
22. Material material2 = new Material(new Color3f(0.0f,0.0f,0.0f), new Color3f(0.0f,0.5f,0.9f),

23. new Color3f(0.0f,0.0f,0.0f), new Color3f(1.0f,1.0f,1.0f), 100f);

24. Appearance appearance2 = new Appearance(); appearance2.setMaterial(material2);

25. trans3d.setTranslation(new Vector3f(-0.5f,-0.5f,-0.5f));

26. TransformGroup trans2 = new TransformGroup(trans3d);

27. Box box = new Box(0.2f,0.2f,0.2f,appearance2);

28. objRoot.addChild(trans2); trans2.addChild(box);

29.
30. Material material3 = new Material(new Color3f(0.0f,0.0f,0.0f), new Color3f(0.4f,0.1f,0.3f),

31. new Color3f(0.0f,0.0f,0.0f), new Color3f(1.0f,1.0f,1.0f), 100f);

32. Appearance appearance3 = new Appearance(); appearance3.setMaterial(material3);

33. trans3d.setTranslation(new Vector3f(0.5f,-0.5f,-0.5f));

34. TransformGroup trans3 = new TransformGroup(trans3d);

35. Cone cone = new Cone(0.2f, 0.5f);

36. cone.setAppearance(appearance3);

37. objRoot.addChild(trans3); trans3.addChild(cone);

38.
39. DirectionalLight light = new DirectionalLight(new Color3f(1.0f,1.0f,0.0f), new Vector3f(-1f,0f,-
1f));
40. light.setInfluencingBounds(new BoundingSphere(new Point3d(), 1000d));

41. trans.addChild(light);

42.
43. return objRoot;

44. }