[vtkusers] rotate a vtkActor2D

[Pankaj Daga]

Hi there,

Sorry for asking again, but did not get any replies and pretty frustrated
with this problem.

I have a vtkActor2D object that I wish to rotate. Is there a simple way to
rotate it about its center?

I know all vtkProp3D based objects have built in rotation functions. How can
I implement something similar in a vtkActor2D?

Basically, I have a 2D image that I wish to rotate on the screen.

Thanks,

Pankaj
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