> On 12 May 2020, at 17:50, Zuheyr Alsalihi <alsal...@vki.ac.be> wrote: > > Dear colleagues, > > I could not easily describe the problem. > > A rectangular slab step file that I have generated, attached CG1.step, shows > the top and bottom surfaces inward normal. > I am not able to reverse this. > But the surface is there, see Pic1.png. When I create an STL mesh with GMSH > gmsh-4.5.6-Linux64/bin/gmsh > these 2 surfaces are not meshed. Can you please help me understand and solve > this problem?
Somehow OpenCASCADE badly translates surface 5 in the STEP file. See attached .brep of the offending surface: all point evaluations within the surface are (wrongly) evaluated on a plane parallel to the surface, but translated. You should report this bug to the OpenCASCADE developers and attach the STEP file. Christophe
debugSurface.brep
Description: Binary data
> Many thanks for reading. > Kind regards, > Zuheyr > <CG1.step><pic2.png><pic1.png>_______________________________________________ > gmsh mailing list > gmsh@onelab.info > http://onelab.info/mailman/listinfo/gmsh — Prof. Christophe Geuzaine University of Liege, Electrical Engineering and Computer Science http://www.montefiore.ulg.ac.be/~geuzaine
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