[Paraview] Question about plugins with Catalyst and Python scripts

[Mathieu Westphal]

Hi Yvan

I understand your catalyst issue but I do not see any other solutions.

Regarding loading a plugin from python, it actually is quite simple :

>>> from paraview.simple import *
>>> LoadPlugin("path/to/lib.so")

Best regards,

Mathieu Westphal

On Wed, Aug 9, 2017 at 12:29 PM, <yvan.fournier at free.fr> wrote:

> Hello,
>
> We have been using Catalyst (with Python coprocessing scripts) in our code
> for quite a while now, and am trying to see how to make thing more
> user-friendly.
>
> One of the main issues we have is that if plugins are loaded in ParaView
> when using the Coprocessing Generator plugin, extra lines regarding those
> plugins may appear in the script, even when not dreclty used. For example,
> when the PointSprite plugins is enabled in PV 5.1, it adds opacity transfer
> function informations. This particular example might not be relevant to PV
> 5.4 with integrated PointGaussian, but other plugins may add similar
> entries, whether used or not in a particular view.
>
> This causes issues using Catalyst, as those plugins are not enabled in
> Catalyst (even using a full ParaView install with OSMesa as Catalyst, not
> editions, often too incomplete).
>
> One solution is to remove the "offending" lines (i.e. run once, check
> lines reported in error logs, removec those, run again, ...) which while
> not complicated, tends to scare users and requires multiple additional
> iterations to setup a visualization.
>
> A better solution would be to allow loading of plugins from the Python
> script (especially as I expect it would allow using plugins such as
> SurfaceLIC from within Catalyst), but I can't find any documentation for
> this. I seem to remember some people from Kitware mentioning this was
> possible in a live discussion I had, but have no additional details.
>
> Is there a way to tell ParaView/Catalyst to load a particular plugin from
> within a Python script ? IF yes, what's the syntax ?
>
> Best regards,
>
>    Yvan
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