[Paraview] Help on SPHVolumeInterpolator

[Will Schroeder]

Carola-

What Jean said :-) The patch is waiting on me and I am waiting on deadlines
which will be clearing up shortly.

If you haven't seen these yet, it's worth reviewing these articles:
https://blog.kitware.com/point-and-smoothed-particle-hydrodynamics-sph-interpolation-in-vtk/
https://blog.kitware.com/point-and-smoothed-particle-hydrodynamics-sph-interpolation-in-paraview/

Best,
W

On Wed, Mar 15, 2017 at 4:21 PM, Favre Jean <jfavre at cscs.ch> wrote:

> Carola
>
> the answer is "soon". ParaView's GUI already enables the setting of the
> so-called Cuttoff Array. In the GUI (I am assuming you use version 5.3),
> there should be a setting for the Density and the Mass arrays. And just
> below it, is the 3rd setting for the "smooting length" array.
> Unfortunately, we are waiting on a patch to the underlying VTK class
> vtkSPHInterpolator.cxx which currently has a small error preventing the
> correct setting.
>
> By the way, I strongly suggest that you use a version of ParaView compiled
> with OpenMP, or TBB. You will see great speed-ups on a multi-core node,
> since the Point Interpolators (Line, Plane, Volume) are all parallelized
> on-the-node.
>
> Until the patch is merged into VTK, and ParaView picks up the change, you
> will be limited to setting the Density and Mass arrays. (Unless you compile
> your own ParaView, and I can tell you how to edit the source code to enable
> the smoothing array.)
>
> -----------------
> Jean/CSCS
> ------------------------------
> *From:* ParaView [paraview-bounces at paraview.org] on behalf of Ellinger,
> Carola [cellinger at lanl.gov]
> *Sent:* Wednesday, March 15, 2017 6:47 PM
> *To:* paraview at paraview.org
> *Subject:* [Paraview] Help on SPHVolumeInterpolator
>
> Hello,
>
> I have astrophysical SPH (smoothed particle hydrodynamics) data that I
> want to interpolate for visualization in ParaView. I've found the
> SPHVolumeInterpolator filter to do that, but can this filter handle
> non-constant smoothing lengths of SPH particles for the interpolation? If
> so, how is this set? Due to the nature of the object I'm trying to
> visualize (a star), the smoothing lengths varies over a few orders of
> magnitude.
>
> Thank you for any help,
>
> Carola
>
>
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-- 
William J. Schroeder, PhD
Kitware, Inc. - Building the World's Technical Computing Software
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