Hi

You should get the TransformGroup which is above your geometry in
the scene graph. I think you can do this by registering a
PickingCallback with setupCallback in the PickTranslateBehavior.
PickingCallback forces you to implement transformChanged, which is
called whenever a change in the observed BranchGroup occurs.

>From this TransformGroup you can get the Transform3D, which you can
apply get(Vector3f transform) to, to get the translational component.

I think, this way it works, it was just from memory.

Bye,  Oliver

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