[vtkusers] I need help, i'm in a trouble but no one answers me!!!

[B. C.]

Hi everyone. I don't know why no one helps me to resolve my problem?!!! Pleaaase, i need your help. 
I want to extract curvatures from a 3D object (a VRML object).
I know it should be done using vtkCurvatures class and i found some code lines but something is missing.
Can someone help me?
 
vtkCurvatures *curves = vtkCurvatures::New();
curves->SetCurvatureTypeToMean();
curves->Update();


      
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