Interaction - Interactive Web-Based Virtual Reality with Java 3D - page 164

Figure 3. Illustration of bounding region and ViewPlatform

Behavior region which sets
the behavior of the object

ViewPlatform
region

Something
happen behind
you which is
not in your
view

Your eyes view region

Figure 4. ViewPlatform and bounding sphere declaration

SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
simpleU.getViewingPlatform().setNominalViewingTransform();

BoundingSphere bounds = new BoundingSphere;
Bounds.setCenter(new Point3d(100.0, 0.0, 0.0));
Bounds.setRadius(20.0);

BoundingSphere r = 20

ViewingPlatform
r = 62

x

0 62 80 100