[vtkusers] execute the transform and get the results

[Tao Tao]

HI, All:

if I have a vtkPolyData object and I apply vtkTransform on it, how do I let
the transform to be executed and get the results ? Currently, the only way I
can do is to render it (call the vtkRenderer::Render() method and it will
execute all transfroms) -- but this sounds too stupid. thanks!

-Tao