[Paraview] Threshold not working for unstructured grid

[Andy Bauer]

Hi Aleksejs,

Welcome to the ParaView mailing list.

This appears to be a bug that you've found. In case you didn't notice, for
the unstructured grid there are 4 triangle cells that connect to look like
a tet. I've added a Mantis issue at
http://www.paraview.org/Bug/view.php?id=15040.

Thanks,
Andy

On Thu, Oct 9, 2014 at 5:33 AM, Aleksejs Fomins <aleksejs.fomins at lspr.ch>
wrote:

> Dear Paraview,
>
> I am new to this list, so I would like to immediately apologise if my
> style does not meet your standard.
>
> I am learning to use Paraview, and I have problems using the threshold
> filter. I have attached 2 .vtk files based on documentation examples to
> explain my point
>
> I use filters->common->threshold, then specify Scalars->cell_scalars
> and choose range [1,3].
>
> * For the "polydata.vtk" I observe some of the rectangles disappear as
> expected. If I manipulate the range, I can get any one rectangle disappear.
>
> * For the "unstructured.vtk" I see all but one triangle disappear, which
> is unexpected. If I manipulate the range, either the tetrahedron
> disappears altogether, or only one triangle is visible.
>
> Could you please tell me what am I doing wrong?
>
> ----------------------------------------------------------------------
> Paraview Version 4.1.0 64-bit
> QT Version 4.8.2
> Linux debian 3.2.0-4-amd64 #1 SMP Debian 3.2.60-1+deb7u1 x86_64 GNU/Linux
> ----------------------------------------------------------------------
>
> Thank you,
> Aleksejs Fomins
>
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