If you really want to add a node to that specific node, you have to create a
branch group node, attatch the behavior to that node, and then attatch the
behavior to this new branch node.
Hope it helps.
----- Original Message -----
From: Dennis Goetz <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, May 06, 2000 9:01 PM
Subject: [JAVA3D] please help with this error
> When I try to add a behavior to a viewpoint transform, I get the following
> error:
> javax.media.j3d.RestrictedAccessException: Group: only a BranchGroup
> node may be added
>
> What exactly must be done to add a behavior to the viewpoint transform?
The
> following is most of the relevant code for what I am trying to do:
> TransformGroup vpTrans;
> SimpleUniverse universe = new SimpleUniverse(canvas3D);
> universe.getViewingPlatform().setNominalViewingTransform();
> universe.addBranchGraph(scene3D);
> ....
> ....
> vpTrans = universe.getViewingPlatform().getViewPlatformTransform();
> CameraBehaviour cameraBehaviour = new CameraBehaviour(vpTrans,20);
> cameraBehaviour.setSchedulingBounds(bounds);
> vpTrans.addChild(cameraBehaviour);
>
> Thanks,
> Dennis Goetz
>
>
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