[Gmsh] 3D meshing from stl surface fails

[David Colignon]

Hi Alexander,

at this stage, there is nothing we can do to help you without a copy of your .stl file ...

Regards,

Dave

-- 
David Colignon, Ph.D.
Collaborateur Logistique du F.R.S.-FNRS
CÉCI - Consortium des Équipements de Calcul Intensif
ACE - Applied & Computational Electromagnetics
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Université de Liège
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On 22/07/10 12:01, Alexander Opitz wrote:
> Hi
>
> First many thanks for this great tool!
> But now I am stuck with the following problem. I want to create a 3D volume mesh from an imported stl surface. The surface doesn't self-intersect but the meshing was not successful. I tried different meshing algorithms but none did succeed. Now my question is what the failure in my stl surface could be that ceases gmsh from successful meshing.
>
> I got the following error messages:
>
> Info    : Started on Thu Jul 22 11:56:36 2010
>
> Info    : Reading 'Test.geo'
>
> Info    : Reading 'gm_final.fc3.120k.u2.stl'
>
> Info    : 308300 facets in solid 0
>
> Info    : Read 'gm_final.fc3.120k.u2.stl'
>
> Info    : Read 'Test.geo'
>
> Info    : Meshing 1D...
>
> Info    : Mesh 1D complete (0 s)
>
> Info    : Meshing 2D...
>
> Info    : Mesh 2D complete (0 s)
>
> Info    : Meshing 3D...
>
> Info    : Meshing volume 3 (Frontal)
>
> Info    : Region 3 Face 1, 2 intersect
>
> Info    : CalcLocalH: 154150 Points 0 Elements 308300 Surface Elements
>
> Info    : Check subdomain 1 / 1
>
> Info    : 308300 open elements
>
> Error   : ERROR: Edge 18830 - 35775 multiple times in surface mesh
>
> Error   : ERROR: Edge 35775 - 41184 multiple times in surface mesh
>
> Error   : ERROR: Edge 39024 - 39025 multiple times in surface mesh
>
> Error   : ERROR: Edge 39025 - 39103 multiple times in surface mesh
>
> Error   : ERROR: Edge 39024 - 41967 multiple times in surface mesh
>
> Error   : ERROR: Edge 39103 - 41967 multiple times in surface mesh
>
> Error   : ERROR: Edge 43936 - 44298 multiple times in surface mesh
>
> Error   : ERROR: Edge 43936 - 46685 multiple times in surface mesh
>
> Error   : ERROR: Edge 44298 - 91790 multiple times in surface mesh
>
> Error   : ERROR: Edge 46685 - 91790 multiple times in surface mesh
>
> Error   : ERROR: Edge 18830 - 153860 multiple times in surface mesh
>
> Error   : ERROR: Edge 41184 - 153860 multiple times in surface mesh
>
> Error   : ERROR: Surface mesh not consistent
>
> Error   : ERROR: Stop meshing since surface mesh not consistent
>
> Info    : Mesh 3D complete (6.11 s)
>
> Info    : 154150 vertices 308300 elements
>
>
> I am running Gmsh Version 2.4.2 on 64 bit Linux Ubuntu.
>
> Any help is appreciated.
>
> Many thanks!
>
> Alex
>
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