[Gmsh] Bug with Frontal and Delaunay 2D mesh algorithms ( A little more insight)
Christophe Geuzaine
cgeuzaine at ulg.ac.be
Fri Oct 17 22:07:56 CEST 2008
CEM ALBUKREK wrote:
> By the way what I mean by non-uniform orientation is that neighboring 2D
> facet normals point in opposite directions in a random fashion. This
> behaviour is observed in GMSH version gmsh-2.2.1. After correcting the
> 2D mesh normals using an external meshing software tool and bringing
> back the STL file in, the GMSH volume mesher works perfectly fine.
Hi Cem - Yes, it's a known bug (recent versions actually display a
warning dialog about it). We're working on a fix.
>
> On Thu, Oct 16, 2008 at 5:17 PM, CEM ALBUKREK <calbukrek at gmail.com
> <mailto:calbukrek at gmail.com>> wrote:
>
> Dear Christophe,
>
> I have observed a minor bug associated with non-uniform orientation
> of surface facets generated using Frontal and Delaunay 2D mesh
> algorithms. The discrepancy causes the 3D Netgen volume mesh
> generation to fail.
>
> Best,
>
> Cem
>
>
>
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--
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine