[Gmsh] Wrong elements

[Christophe Geuzaine]

Hello Paul,

Indeed the mesh overlaps itselfs :-( Can you run the exact same case without the recombination step (and without the subdivision) in order to see if the underlying triangular mesh is valid (or if the issue is with the recombination)?

Thanks,

Chrisotphe

> On 17 Jan 2019, at 12:54, cristini paul <cristini at lma.cnrs-mrs.fr> wrote:
> 
> Hello,
> 
> I am facing a problem with Gmsh. I am generating a 2D mesh (quadrangles) which consists in many disks put inside a box.
> 
> It is working for a configuration with ~ 1000 disks but unfortunately I have a problem when trying to generate a mesh with # 3000 disks.
> 
> I use the external python API  to generate the .msh file but my tool which detects elements with negative jacobians find some although Gmsh didn't mention anything. After reading the .msh file with the GUI I finally found that there is indeed problems at the places detected by my tool.
> 
> I enclosed screen captures showing the situation.
> 
> Do you have an idea of what's going on ?
> 
> Thanks
> 
> Paul
> 
> 
> -- 
> *--------------------------------------------------------------------------*
> Paul CRISTINI  Charge de Recherche CNRS (HDR) / CNRS Research Scientist
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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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