[Gmsh] bug - meshing multiple volumes

[David Colignon]

Hi Samuel,

can you try with the other 3D meshing algorithm, Netgen ( Tools->Options->Mesh->General->3D algorithm->Netgen ) ?

And if it's still crashing, can you send us your CAD geometry ?

Cheers,

Dave


-- 
David Colignon, Ph.D.
Collaborateur Logistique du F.R.S.-FNRS (Équipements de Calcul Intensif)
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Samuel Vogel wrote:
> Hello,
>  
> I've imported a CAD geometry (same problem with IGES and STEP). The file 
> is an assembly of two parts. When I open it in gmsh everything works 
> fine. gmsh shows two volumes and when I am doing the surface mesh (2D) I 
> get a perfect mesh. The contact surface of the two volumes is meshed as 
> well, that is exactly what I want. But when I try to do volume meshing 
> gmsh crashes. In the Linux version without a message. In the windows 
> version with the following message:
>  
>  
> Microsoft Visual C++ Runtime Library
>  
> Assertion Failed!
>  
> Program C:\Program Files (X86)\gmsh\gmsh.exe
> File: tetgen.cxx
> Line: 22506
>  
> Expression: matchflag == true
>  
> ...
>  
>  
> The error occurs with all tested assembly files that consinst of 
> multiple volumes. Perhaps someone can help!
>  
> The goal is to mesh a assembly consisting of two parts. And the contact 
> surface of the volumes should be meshed as surface. Like gmsh does in 
> the surface meshing step described above. But the 3D meshing crashes.
>  
>  
> Thanks a lot,
>  
>  
> Sammy
>  
>  
> 
> 
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