[vtkusers] vtkCompositeDataGeometryFilter and vtkPolyhedron

[Berk Geveci]

The easiest fix to this is to copy vtkPVGeometryFilter from ParaView into
your project and then use that. Eventually, we should migrate that to VTK
and deprecate some of the other ones to clean things up but it hasn't been
a priority so far.


On Thu, Apr 4, 2013 at 11:49 AM, Gerrick Bivins <
Gerrick.Bivins at halliburton.com> wrote:

>  Update here.****
>
> After some trial and error I was able to use vtkDataSetSurfaceFilter to
> render the data correctly.****
>
> I was unable to get vtkGeometryFilter to work for unstructured grids with
> vtkPolyhedron cells.****
>
> (Is this a bug?)****
>
> From the docs, it’s not clear what the difference is other than “faster”
> and it doesn’t appear to****
>
> be a direct replacement. Also, I’m not sure I can use it on composite data.
> ****
>
> Can someone explain the difference? Will the vtkDataSetSurfaceFilter pass
> through the 0d,1d,2d cells as well?****
>
> ** **
>
> Gerrick****
>
> ** **
>
> ** **
>
> ** **
>
> *From:* vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] *On
> Behalf Of *Gerrick Bivins
> *Sent:* Wednesday, April 03, 2013 4:47 PM
> *To:* 'vtkusers at vtk.org'
> *Subject:* [vtkusers] vtkCompositeDataGeometryFilter and vtkPolyhedron****
>
> ** **
>
> Hello,****
>
> I have a strange issue and I’m not sure if it is my data or a limitation I
> wasn’t aware of.****
>
> I have an application that worked previously with composite data,
> specifically multiblocks of unstructured grids.****
>
> I’ve been attempting to use an unstructured grid in my composite data
> source and it is read in correctly but****
>
> as soon as I pass it to a vtkCompositeDataGeometryFilter, the output
> doesn’t contain any cells, as if the filter doesn’ t recognize****
>
> polyhedron cells. The strange thing is, the file reads in as expected in
> paraview….****
>
> Is there some limitation where vtkCompositeDataGeometryFilter (ie
> vtkGeometryFilter) doesn’t work with polyhedron cells?****
>
> Gerrick****
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