[vtkusers] vtkSurfaceReconstructionFilter

[Tim Hutton]

Hi Rohan

Yes, this often happens with vtkSurfaceReconstructionFilter, due to
its requirement that the surface be densely sampled at all points - it
can't cope with open surfaces or with outliers.

The standard response is to try the powercrust algorithm instead:
vtkPowerCrustSurfaceReconstruction, at:
http://www.sq3.org.uk/powercrust/

Tim

On 10/25/05, Rohan Hughes <frostillicusetcetera at hotmail.com> wrote:
>
> I have a set of of points that i wish to construct a surface from.
> I firstly just displayed it as a bunch of points (using vtkPolyVertex) and
> it looked like it should.
> I then tried to use vtkSurfaceReconstructionFilter to make a surface. Some
> of the surface turns out ok, but the rest seems to flare out into parts
> where there are no points. I'm quite confused as to why it does that. I can
> only really explain this with a picture
> I also tried to use vtkDelaunay3D but after fiddleling with the SetAlpha()
> and I was able to create a reasonably nice surface. it wasn't as nice as the
> surfaceReconstructionFilter one, and it joined some points that shouldn't be
> joined
>
> I am unsure what I should do next. images are attached if they help explain
> it better
>
> Thank you in advance
>
> Rohan
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--
Tim Hutton  -  http://www.sq3.org.uk