[Paraview] Automating contour isosurface values in parallel Catalyst Python script

[Joachim Pouderoux]

Hi Yvan,

Regarding MinMax: this filter is indeed not exposed by any standard
Catalyst edition but it is
easy to add. See for instance in
ParaView/Catalyst/Editions/Extras/manifest.json how the
PVExtractSelection filter is exposed (line 50 and 247).
Just do the same with the MinMax filter (see proxy's declaration at
filters.xml:~11725).

Best,
Joachim


*Joachim Pouderoux*, PhD

*Technical Expert - Scientific Computing Team*
*Kitware SAS <http://www.kitware.fr>*


2017-02-13 17:31 GMT-04:00 Yvan Fournier <yvan.fournier at free.fr>:

> Hello,
>
> I'm in the process of migrating some VTK scripts in the Code_Saturne (code-
> saturne.org) test suite to Catalyst Python scripts, and am having some
> difficulty automating some cases using contour plots:
>
> For time-dependent data, I do not know the value ranges in advance, and
> would
> like to query them so as to build an Isosurface values array spanning that
> range.
>
> I can manage to access the point and cell data arrays and ther ranges, but
> printing the ranges in parallel, it seems I have local values only, while
> I need
> a global range.
>
> I searched for examples in the documentation, on the Wiki, ..., and found
> an
> example for MinMax, but don't seem to ba able to access the correct type of
> Proxy under Catalyst (the default servermanager is not connected in the
> usual
> way.
>
> For scalar bar color look-up tables, I can manage with
> "coprocessor.WriteImages(datadescription, rescale_lookuptable=True)" in
> the
> coprocessing script, but for a more general case such as thar needed for
> contour
> plots, I've been running around in circles in the last hours trying to
> find and
> adapt a relevant example.
>
> Does anyone have a suggestion ? Thanks in advance,
>
>         Yvan Fournier
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