[Paraview] Catalyst: dump everything in C++

[Lokman Rahmani]

Thanks Andy, I was not aware of the examples. 

Best, 
Lokman 
================================ 

----- Mail original -----

> De: "Andy Bauer" <andy.bauer at kitware.com>
> À: "Matthieu Dorier" <mdorier at anl.gov>
> Cc: "ParaView Mailing List ‎[paraview at paraview.org]‎" <paraview at paraview.org>
> Envoyé: Mercredi 21 Septembre 2016 16:25:36
> Objet: Re: [Paraview] Catalyst: dump everything in C++

> Hi Matthieu,

> You can indeed use Catalyst without Python. There are two examples in the
> Examples/Catalyst subdirectory of the source tree to do that. They are
> CxxVTKPipelineExample and CxxPVSMPipelineExample. I wouldn't recommend this
> method as the Python route is much simpler. Several people have thought
> about avoiding the Python interface and generally come around to its
> flexibility (both ease in creating new Catalyst output as well as making
> changes without having to recompile code).

> In my opinion, if you're not doing image output the C++ route is manageable
> without too much difficulty. For image output there's a lot of things which
> need to be set in order to get all the lookup tables, data ranges, camera
> angle, etc. that can get quite complex. If you look at a GUI generated
> Catalyst script for data extract output and compare it to image output
> you'll easily see the difference in the complexity. Also, Cinema output is
> Python driven so that wouldn't be available through a C++ pipeline.

> Now that I've gone through all of this, is there a specific reason why you're
> looking to avoid Python?

> Best,
> Andy

> On Wed, Sep 21, 2016 at 9:27 AM, Dorier, Matthieu < mdorier at anl.gov > wrote:

> > Hi,
> 

> > In general the way we create python scripts for a Catalyst-enabled
> > simulation
> > is by first running the simulation with a Python script that writes the
> > data
> > into files, then do offline analysis on those files and export a python
> > script representing the analysis tasks to be done in situ.
> 

> > I was wondering if, instead of using a Python script for writing all the
> > data
> > into file, an equivalent C++ code was available, and how such a code would
> > be integrated into a Catalyst-enabled simulation? Or maybe just with VTK
> > once the adaptors are written for the simulation's data?
> 

> > Thanks,
> 

> > Matthieu
> 

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