Hi Mark, thank you for pointing me to MeshLab. I just had a quick look on it. The problem is that in stl format, all information about the triangles being assigned to surfaces seem to get lost. So even if the self-intersecting/duplicate faces can be collapsed, I cannot reconstruct the geometry, especially the volumes, which I need to do in order to create a 3D mesh. Best regards, Matthias ________________________________
Von: Smith, Mark [mailto:[email protected]] Gesendet: Freitag, 8. April 2011 18:06 An: Zenker, Dr. Matthias; [email protected] Betreff: RE: [Gmsh] crash when meshing 'cleaned' STEP file Hi Matthias Have you had a look at MeshLab http://meshlab.sourceforge.net/ which might enable you to do what you want if you export in stl format first? Regards mark ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Zenker, Dr. Matthias Sent: 08 April 2011 14:19 To: [email protected] Subject: [Gmsh] crash when meshing 'cleaned' STEP file Hi, I am working on a method to 'clean' STEP files in order to get a conformal mesh between adjacent bodies. If I get it to work, I will be happy to share it, but I am still struggling at the moment... My problem is that gmsh will not mesh my 'cleaned' geometry. What I try to do is to determine the surfaces and lines which are identical, delete the unnecessary ones and redefine the volumes using the remaining surfaces. I use an external tool (scilab script), so I did not modify gmsh. Please find in the attachment my test geometry in STEP format and the geo file I want to use for the 3D mesh. gmsh does the 2D and 2D meshing without problems, but crashes during the 3D mesh (either I get a net crash, or gmsh does not respond any more after some time, and I have to kill it). Did I do something wrong when generating the geo file? I would be very happy if someone could have a look on my case. I am using gmsh 2.5.1svn under Windoze XP. Thank you for any hint, Matthias ---------------------------------------------------------------- ERBE Elektromedizin GmbH Dr.rer.nat. Matthias Zenker Dipl. Phys. Grundlagenentwicklung / Fundamental Development Waldhoernlestrasse 17 72072 Tuebingen Germany Phone + 49 (0) 7071 755 - 226 Fax + 49 (0) 7071 755 - 5226 E-Mail: <mailto:[email protected] <mailto:[email protected]> > URL: http://www.ERBE-med.com <http://www.ERBE-med.com> ---------------------------------------------------------------- <<Baugruppe1_overlap.zip>>
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