[vtkusers] problem updating polydata data attributes

[Dominik Szczerba]

call Update() from your vtkCurvature instance.
DS

Andrea del Pilar Rueda Olarte wrote:
> Hello,
> 
> I'm working in a program to deform 3D surfaces, but I have a little 
> problem with the data attributes associated to the polydata.
> 
> I use a vtkProgrammableFilter to modify the position of the mesh points, 
> and I use a loop to iterate and update the point's position every time. 
> The new position depends basically of the surface curvature in that 
> point, and to obtain the curvature values I use the class vtkCurvatures. 
> I get the curvature of the initial surface, but after the first 
> iteration, in the sucessive modifications of the surface, the curvature 
> values remains the same. I think I need to call some method to force the 
> update of the curvature values associated to the polydata, but I don't 
> know what to do with this.
> 
> Thanks for your help.
> 
> Andrea Rueda
> 
> 
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-- 
Dominik Szczerba, Ph.D.
Computer Vision Lab CH-8092 Zurich
http://www.vision.ee.ethz.ch/~domi