Dear all, I am trying to get the input of a mapper briefly as follows:
*vtkMapper* mapper = actor->GetMapper(); vtkDataSet* input = mapper->GetInput(); int numPoints = input->GetNumberOfPoints();* but faild. I found that the numPoints is A (such as 400) when the representation of a data is *Outline*, and B (such as 5500) when the representation of the same data is *Surface*. It seems that I only got part(s) of the whole data. Anyone would tell me what is wrong and how to get the whole data? Any advice would be appreciated! Thanks!
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