Hi Brent and Mark, at the moment, I am still working on my processor for the 2D mesh. But as soon as the problem I have with GiD (crash at geometry import in at least one case) is solved, I will stop that work and use GiD. It can collapse surfaces and is not expensive, so it may be worthwhile to try it wioth a one-month evaluation license.
Sorry, gmsh team - gmsh is a very nice tool, and I like it, but it does not offer a real solution to this "3D geometries with double surfaces" problem. If I manage to develop my 2D mesh processor to a point where it is useful in any way, I will post it here. 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]> URL: http://www.ERBE-med.com ---------------------------------------------------------------- -----Ursprüngliche Nachricht----- Von: Mark van Doesburg [mailto:[email protected]] Gesendet: Montag, 4. April 2011 09:31 An: [email protected]; [email protected] Cc: Zenker, Dr. Matthias Betreff: Re: [Gmsh] importing .step files with multiple parts whose surfacestouch Hello Brent, The code I've written was not intended for plane surfaces only. I many cases it works on spheres and cylinders as well. Unfortunately the OCC code does not always find all intersections and many special cases are not handled correctly. I understood that netgen had something that worked, but apparently (Matthias's reply) it does not. I intend to write something when I can find the time, but that might take a while. I'll try to avoid writing something from scratch, but I doubt I'll have another look at OCC. Currently CGAL looks the most promising. Mark van Doesburg. "Vandevender, Brent A" <[email protected]> wrote: Thank you for your reply Matthias. I specifically had you and Mark van Doesburg in mind when I posed the question. I have followed your posts in the archives and hoped that there was some progress. I have only recently realized the gravity of my problem and start to appreciate the astronomically high price of the commercial electricity and magnetism FEM package I am trying not to have to buy (Maxwell3D). It seems I will take some effort to solve the problem myself, as you have. The best solution, I think, is to fix the 2D surface meshes created by gmsh with a separate self-written code and re-import to gmsh as you describe in option 2. I can imagine how the algorithm will work, but also that it will take the age of the universe to complete for a realistic geometry. My intention was to be a mere consumer of finite-element methods, and I don't know where I will find the time to become a producer. _______________________________________________ gmsh mailing list [email protected] http://www.geuz.org/mailman/listinfo/gmsh
