[Gmsh] Preventing gmsh from adding additional edges to pre-triangulated volume surfaces during volume tetrahedrization
Christophe Geuzaine
cgeuzaine at ulg.ac.be
Sun May 31 10:10:18 CEST 2009
Knell, Sascha wrote:
> Hi,
>
>
>
> I intend using gmsh to mesh polygranular geometries. A sample .geo file
> is attached to this e-mail. To reduce its size, the majority of grains
> were deleted. If this sample geometry is meshed with tetrahedrons, some
> additional edges are inserted in the pre-triangulated grain surfaces. Is
> there a way preventing this?
Only with the Frontal (Netgen) algorithm. The Delaunay cannot guarantee
that no new edges will be created on the surfaces.
> The 'Transfinite Line "*" = 2' option seems
> to have no effect on the 3D mesh generation. If it is not possible
> avoiding these additional edges, is a consistent mesh guaranteed between
> different grains, if these grains share a common pre-triangulated surface?
Yes.
>
>
>
> Thanks in advance.
>
>
>
> Best regards
>
>
>
> Sascha Knell
>
>
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--
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine