[Gmsh] Error "Self intersecting surface mesh, computing intersections" depending of characteristic length cl

Rene Schneider rene.schneider at mathematik.tu-chemnitz.de
Fri Mar 29 07:16:37 CET 2013


On 28.03.13 11:54, PLAUSSU Jean-Raoul CNRS wrote:
> Hello,
>
> I programmed a 3D geo file.
>
> Gmsh can mesh it with big characteristic length cl=100, giving 686
> triangles. That means there isn’t any syntax error in my file.
>
> But reducing the characteristic length cl to cl=1 in order to get more
> triangles, and then meshing the volume, Gmsh gives the following  error
> message:
>
> Error   : Self intersecting surface mesh, computing intersections (this
> could take a while)
>
> Info    : 1340 intersecting faces have been saved into 'intersect.pos'

You can open (or merge)  the 'intersect.pos' file in gmsh. This will 
show you where the self intersection takes place.

Or you could post the .geo file on the gmsh mail-list for others to have 
a look.

Rene



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       Dr. Rene Schneider

       TU Chemnitz, Fakultaet fuer Mathematik,
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