[Insight-users] whay max and mean curvatures values are always positive with itkQuadEdgeMesh???

[Arnaud Gelas]

Hi Sebastien,

Could you send your model (or post a link), please? (or pos
I'll check and investigate that.

Arnaud

On Jan 8, 2010, at 9:30 AM, Sebastien Postaire wrote:

> Hi itk users,
> I'm a newbie to itk and I have question regarding mesh curvature  
> computation.
> I'm using the class itkQuadEdgeMesh for this purpose :
> "itkQuadEdgeMeshDiscreteMaxCurvatureEstimator.h" is used to compute  
> the Max curvature
> "itkQuadEdgeMeshDiscreteMeanCurvatureEstimator.h" is used to compute  
> the Mean curvature
> I've tested several volumes which I convert first to a mesh and I  
> have noticed that the mean and max curvatures values returned by the  
> above classes are always positive!
> I checked with vtkCurvatures class and I’ve found that these  
> curvatures can take negative values (as it is supposed).
>
> Could someone explain to me why this occurs?
> Thanks a lot
> Seb
>
>
>
>
> <ATT00001.txt>

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