Marcel
> Why the instruction at Test.createCanvasPanel(Test.java:52),
> generate a =
> RestrictedAccessException
> (javax.media.j3d.RestrictedAccessException: Group: only a
> BranchGroup =
> node may be added ),
> if the variable component is a BranchGroup ?
> component.addChild(new Sphere (0.1f, new Appearance()));
Certainly "component" is a BranchGroup, but what the exception says is that the Node
you're adding has to be a BranchGroup, and not the Group to which you're adding it.
If you do it like below, it should work (Don't forget of setting proper capability
bits in "component":
BranchGroup bg = new BranchGroup();
bg.addChild(new Sphere (0.1f, new Appearance()));
component.addChild(bg);
> Why the first =
> addChild(Sphere) don't generate this exception ?
It doesn't generate the exception because at the time it is called the scene graph
still isn't live.
HTH
Fabio
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