[Paraview] Testing CGNS reader with PV 3.6.1 and VisIt plugin

[Utkarsh Ayachit]

Richard,

Thanks for reporting the issues. The VisIt plugin that was released
with 3.6 is indeed in a very experimental stage. We do plan to evolve
it further to be more stable and easier to build/use.

Utkarsh

On Thu, Jul 23, 2009 at 7:38 AM, Richard GRENON<richard.grenon at onera.fr> wrote:
> Hello.
>
> I have made several tests with the CGNS reader. Some files are readable,
> some other files are freezing PV.
>
> 1. Here is an exemple from the CGNS site that contain both grid and CFD
> solution for a delta wing and that works:
> http://cgns.sourceforge.net/CGNSFiles/Chris/delta.cgns.gz
>
> 2. CGNS files that contain only the grid also work. Tested large ONERA CGNS
> files and STANFORD CGNS test files. Here is a STANFORD test file for the
> supersonic business jet:
> http://aero-comlab.stanford.edu/vdweide/CGNSFiles/BusinessJet.cgns
>
> 3. Trying to include the CFD solution file does not work. Here are the two
> STANFORD solution files for the supersonic business jet:
> http://aero-comlab.stanford.edu/vdweide/CGNSFiles/SolBusinessJet.cgns =
> volume solution file.
> http://aero-comlab.stanford.edu/vdweide/CGNSFiles/SolBusinessJet.cgns_surface
> = surface solution file.
>
> Reading the surface solution file works, but nothing is visible. The
> information panel shows strange very big values for X, Y, Z bounds (almost
> infinte)!
> Trying to read the volume solution file freezes Paraview.
>
> The same problem arises withthe DLR F6 wing-body example:
> http://aero-comlab.stanford.edu/vdweide/CGNSFiles/wb_hex_coarse.cgns = grid
> for the DLR F6 wing-body is readable.
> http://aero-comlab.stanford.edu/vdweide/CGNSFiles/WBSolKW.cgns = solution
> file => freezes PV.
>
> 4. Conclusion:
> Good job to have added CGNS and Tecplot support to PV (Tecplot tested
> without a problem until now).
> VisIt plugin can read CGNS grid files (even large) or single files including
> both grid and CFD solution works.
> But still some problems in CGNS when the grid and the CFD solution are in
> separated files.
>
> --
> Richard GRENON
> ONERA
> Departement d'Aerodynamique Appliquee - DAAP/ACI
> 8 rue des Vertugadins
> 92190 MEUDON - FRANCE
> phone : +33 1 46 73 42 17
> fax   : +33 1 46 73 41 46
> mailto:Richard.Grenon at onera.fr
> http://www.onera.fr
>
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