[vtkusers] Assembly Rotation

[Koteswara Rao Ruvva]

Hello All,
I have a vtkAssembly that is made out of two vtkPolydata objects. After rendering them, I create points and lines interactively and add to the assembly using AddPart method. So far so good.
When I rotate the assembly about a vector by an angle 'theta', the Polydata objects rotate by correct amount. But the points and the lines rotate by double the theta. And no issues with translation.
I could not figure it out. Any help?
Thank youRao
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