[Gmsh] gmsh ASCII file version for EDF Syrthes 4.3

[Christophe Geuzaine]

> On 3 Mar 2018, at 18:45, Alessio Nava <alessionava.nava17 at gmail.com> wrote:
> 
> Dear all,
> 
> I would like to use gmsh meshes in Syrthes, which is a thermal solver written by EDF. They have a tool called convert2syrthes4 which converts the gmsh file to their own mesh file .syr.
> 
> Inspecting the .syr file, I see that the elem references are shifted. I have tracked down the problem to this line in lecture_msh.c for a 4 node tetrahedron for example :
> 
> sscanf(chaine, "%i %i %i %i %i %i %i %i %i %i", &entier1, &entier2, &entier3, &couleur, &entier5, &entier6,
> 	                          &(elem_tetraedre[tetraedreP1][0]),
> 	                          &(elem_tetraedre[tetraedreP1][1]),
> 	                          &(elem_tetraedre[tetraedreP1][2]),				  
> 	                          &(elem_tetraedre[tetraedreP1][3]));
> 
> Question: which is the gmsh file version which works with this sscanf? They are execting 10 params, but I only have 9 in gmsh 3.0.6. 
> 

By default, none : MSH1 and MSH2 save 9 integers and (undocumented) MSH3 saves 8 for a 4-node tetrahedron. (MSH4, which will become the default in the upcoming Gmsh 4.0 release, will only save 5 - as it saves elements per geometrical entity.)

> I was thinking about setting the right: Mesh.MshFileVersion = X.Y;
> 
> Can anyone please help me?
> -- 
> Distinti Saluti.
> 
> Alessio Nava
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— 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine

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