Hi, Florin,
Thanks for your words, it is really helpful. But how
to make the group subclasses not live or compiled?
regards.
tony
--- Florin Herinean <[EMAIL PROTECTED]> wrote:
> You can use it on any group sublclass as long as
> that group is not live or
> compiled. If is live or compiled, only branch groups
> may be added /
> detached.
>
> Cheers,
>
> Florin
>
>
> Dear friends,
>
> I tried to remove all children by pressing a button,
> so this is the
> codes changed from
> demo/AWT_interaction/AWTInteractionBehavior.java :
>
> [/CODES]
> private BranchGroup BG;
> ...
> public void processStimulus(Enumeration
> criteria)
> {
> angle += Math.toRadians(10.0);
> trans.rotY(angle);
> transformGroup.setTransform(trans);
> wakeupOn(criterion);
> BG.removeAllChildren();
> }
> ...
> [/CODES]
>
> It can be compiled, but when I run it, there is one
> error:
>
> Exception occurred during Behavior execution:
> javax.media.j3d.RestrictedAccessException: Group:
> only
> a BranchGroup
> node may be
> removed.
>
> removeAllChildren() is a method can be used by all
> subclasses of
> Group, so I really wonder why here it can not work.
> Would you please
> let me know why?
>
> Thanks in advance.
> tony
>
>
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