[vtkusers] Contouring Vertices

[Oliver Fleig]

Erik Sobel wrote:
> 
> What's the best way to apply a contour to a unstructured grid of polydata
> vertices - I basicaly want to throw a rubber sheet over a collection of
> points.  I'm not having much luck with...
> vtkContourFilter
> vtkKitwareContourFilter
> vtkMarchingContourFilter
> 
> - but it's hard to tell if I am using them correctly since I get no output.
> 
> Anyone have any suggestions?
> 

Give vtkDelaunay3D and vtkSurfaceReductionFilter a try. Have a look at
their examples.
Use an alpha value for the Delaunay triangulation to get a non convex
hull.

Cheers

Oliver


-- 
Oliver Fleig  Laboratoire SIM
mailto:Oliver.Fleig at univ-rennes1.fr