[Gmsh] meshing multiple objects

[Christophe Geuzaine]

Felix Wolfheimer wrote:
> Hi Gmsh Experts,
> 
>  
> 
> I would like to create a tetrahedral mesh from iges or step models. The 
> models contain parts which touch each other (result of Boolean 
> operations). However, when I read the model with gmsh the interface 
> region where the solids touch is meshed twice (once for the first object 
> and once for the second). Additionally, the tetrahedrons at the 
> interface overlap arbitrarily. Is there any way to read a CAD model and 
> mesh it with gmsh such that the surface of the interface region of the 
> two solids is meshed only once?
> 

You have to make sure that the solid modeler creates the correct 
geometry for the intersecting objects (intersection curves, etc.)

Can you send the step file?



>  
> 
> Best regards
> 
>  
> 
> Felix
> 
>  
> 
> PS: The screenshot enclosed to this mail may show you the result I get 
> when I try to mesh two cylinders, where the first cylinder was trimmed 
> by the second one.
> 
>  
> 
> 
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> 
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine