[vtkusers] vtkDelaunay3D not using all points?

[David Doria]

On Wed, Apr 21, 2010 at 9:30 PM, David Doria <daviddoria+vtk at gmail.com> wrote:
> If I run vtkDelaunay3D (with Paraview's default values) on this data set:
> http://www.rpi.edu/~doriad/VTK_List/Delaunay3D/bunny.vtp
>
> the output:
> http://www.rpi.edu/~doriad/VTK_List/Delaunay3D/bunnyDelaunay.vtu
>
> seems to be more like a convex hull, rather than a solid set of
> tetrahedra (where EVERY point is a vertex of a tetrahedron).
>
> Here are screenshots:
> - input: http://rpi.edu/~doriad/bunny.jpg
> - wireframe view of delaunay3d output:
> http://rpi.edu/~doriad/bunnyDelaunay.jpg (note many points are not
> joined by an edge)
>
> Am I misinterpreting what is being rendered in the wireframe view? Or
> does vtkDelaunay3D not actually do what I have explained?
>
> Thanks,
>
> David
>

I ran the output through vtkExtractEdges and obtained the result I was
looking for. So I guess wireframe just shows the wireframe of the
outermost surface? Is that by design?

Thanks,

David