[Paraview] Resample with Dataset (vtkValidPointMask)

[David E DeMarle]

The probe filter assigns the invalid flag when a sample location isn't
located within any cell in the field (as happens in parallel cases
when a processor is sampling outside of its local domain).

What data type are you sampling within exactly? If the cells are 2D or
less, it is pretty easy to have lots of the sample locations not
satisfy the plane equations of any of the 2D cells.

David E DeMarle
Kitware, Inc.
R&D Engineer
28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x109



On Wed, Apr 21, 2010 at 9:49 AM,  <Luca.Clementi at tororosso.com> wrote:
> Dear all,
> I have two CVS files with ~500000 3d point with a scalar value.
> I load them in paraview then I use Table To points to have a polygonal mesh.
>
> I then use the resample with dataset so that in the next step I can do a
> with the a programmable filter.
>
> The problem I have is that looking at the vtkValidPointMask after I run the
> probe filter I have almost ~400000 points which are set to 0 (aka they are
> invalid).
>
> Why is that? How can I reduce that number?
>
> My two data set are the results of a very dense point sample taken on the
> same boundary surface.
>
> Sincerely,
> Luca
>
>
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