[Gmsh] Postprocessing of cubic elements

[Christophe Geuzaine]

Martin Vymazal wrote:
> Hello gmsh users/developers,
> 
>  I'm working on a high order discretization method for fluid flow. I
> really like some features that gmsh has to offer, especially the
> possibility to generate directly very high order elements. I'd also like
> to replace tecplot by gmsh as postprocessing software, but I'm stuck with
> the following problem: according to gmsh documentation. it is only
> possible to visualize solution on quadratic elements. My elements are
> cubic (generated by gmsh), but now I cannot postprocess my solution, it
> seems. Did I overlook something/would it be possible to add this
> functionality to gmsh?
> 

Hi Martin - For triangle/tetrahedral grids everything is ready for 
visualizing cubic nodal datasets: just write your post-processing file 
in .msh format and you're good to go (cf. attached example). We will 
generalize this to all other standard elements in the future.

For other types of elements you can still use the old .pos format and 
write your interpolation matrices at the end of the file. There should 
be an example on the mailing list.



>  Best regards,
> 
>          Martin Vymazal
> 
> _______________________________________________
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> gmsh at geuz.org
> http://www.geuz.org/mailman/listinfo/gmsh
> 
> 


-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine
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