[vtkusers] Getting the pixel size of a vtkTextActor

[Oliver Kania]

Hi all,
given a vtkTextActor, is it somehow
possible to determine its height and width in pixels ?
I tried GetPosition and GetPosition2 but the returned values
dont seem ok ( I think the vtk documentation says that GetPosition2 is
not always used)

thanks in advance
Oliver

PS:sorry for reposting, the title was wrongly labeled [vtk-users]
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