[vtkusers] How to use 'vtkCurvatures' class?

[Amy Squillacote]

You'll want to use vtkCurvatures with curvature type set to maximum. 
Then pass the output of that filter to a vtkThreshold, using the 
ThresholdByUpper method to indicate the values to keep. Example c++ code 
is shown below.

vtkCurvatures *curv = vtkCurvatures::New();
curv->SetCurvatureTypeToMaximum();

vtkThreshold *thresh = vtkThreshold::New();
thresh->SetInputConnection(curv->GetOutputPort());
thresh->ThresholdByUpper(0.5); // using the example value you provided.

Online documentation for vtkCurvatures is here: 
http://www.vtk.org/doc/nightly/html/classvtkCurvatures.html.
Online documentation for vtkThreshold is here: 
http://www.vtk.org/doc/nightly/html/classvtkThreshold.html.

- Amy

B. C. wrote:
> Please, i need your help to finish my work!!!
> I use 'vtkCurvatures' to compute curvatures at each point of my 
> polydata structure.
> I want to save only the Maximum curvatures and display only those 
> which are > some_value (0.5 for example).
> Can someone tell me how to do this?
> Please heeeeeeeeelp!!!
>
>
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-- 
Amy Squillacote                    Phone: (256) 726-4839
Computer Scientist                 Fax: (256) 726-4806
CFD Research Corporation           Web: http://www.cfdrc.com
215 Wynn Drive, Suite 501
Huntsville, AL  35805