[vtkusers] extract curvature value of point.

[Amy Henderson]

Hi Moti,

Did you call Update() on the vtkCurvatures filter before you tried to 
access its output? If you did, you should not have gotten an empty result. 
The output poly data of vtkCurvatures will contain a scalar point data 
array called either Gauss_Curvature or Mean_Curvature (depending on which 
type of curvature you asked vtkCurvatures to compute), which should give 
you the curvature at each point that you are looking for.

- Amy

At 05:03 PM 6/24/2004, Moti Freiman wrote:
>hello!
>i'm trying to develop some algorithm for my thesis.
>now i need to extract the curvature value at each point of 3d volume which 
>represented by vtkPolyData object.
>i found the class vtkCurvatures, but i did not understand how i get the 
>curvature value at each point.
>when i check the polydata output object i got nothing.
>
>thank you
>moti freiman
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