[Gmsh] Correct .geo file ... but self-intersections in surfaces for 3D mesh ?!?

David Colignon David.Colignon at ulg.ac.be
Fri Apr 17 08:59:42 CEST 2015


at first sight, can you check your geometry (triangles) around points 2804 and 2667 ?

The lines 16488 and 100000063 are also crossing each other. Idem for lines 18341 and 100000064, and there are more of them.



David Colignon, Ph.D.
1er Logisticien de Recherche
Université de Liège
ACE - Applied & Computational Electromagnetics
Sart-Tilman B28
10, Grande Traverse
4000 Liège - BELGIQUE
Tél: +32 (0)4 366 37 32

On 17/04/15 00:13, Sacconi, Andrea wrote:
> Hi GMSH users,
> I have a problem with a .geo file (which is attached). The geometry is composed of a parallelepiped without a cylinder. As you can see, the cylinder is represented by small triangular faces, since they are the results of finite element calculations, during which the cylinder moves in time.
> I can read the file without problem, but when I generate the 3D mesh, it keeps telling me that there are self-intersections in the surface mesh ... How come? All the surfaces are enumerated only once.
> Could someone have a look at my file? I would really appreciate it!
> Thanks in advance and congratulations for the amazing mesh generator :)
> Andrea
> __________________________________________________________
> Andrea Sacconi
> PhD student, Applied Mathematics
> AMMP Section, Department of Mathematics, Imperial College London,
> London SW7 2AZ, UK
> a.sacconi11 at imperial.ac.uk
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