[vtkusers] vtkActor ID

[Max]

Hi VTKers,
I'm searching for an option to attach some ID to an actor.
The thing is after picking an object i have to find out which object was
picked.
So i'm checking the actor of the point that was picked.
But I want to change color of some related objects too.
In short, I want to change colors of a related group of objects when one of
them is selected.
Is there a way to attach an id to an object/actor of that object?

Thank you,
Max



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