Works fine, thank you! Matthias
> -----Original Message----- > From: Christophe Geuzaine [mailto:[email protected]] > Sent: Sunday, February 15, 2009 4:15 PM > To: Zenker, Dr. Matthias > Cc: [email protected] > Subject: Re: [Gmsh] dxf or other 2D import? > > Zenker, Dr. Matthias wrote: > > Thank you for this clarification. > > > > The problem with STEP data is that it is always 3D, so in > order to generate a 2D geometry, I have to convert to geo > format and remove the 3rd dimension (volumes, surfaces, > lines, points) manually. Or is there a more elegant way to do that? > > > > I have observed that when STEP data is saved in geo format, > circular arcs are converted to splines with many points, > which makes handling (and maybe also meshing) more complicated. > > Can this behaviour be influenced? > > > > I've added the little bit of code to do it for circle arcs < > Pi (since that's all the GEO format supports). > > (The main purpose of the GEO export is to dump a "flat" > representation of models that are built using Gmsh's internal > CAD module. We added rudimentary export capabilities for > other data models, but since the GEO format is quite limited > these will never be "complete"...) > > > > Thank you, > > > > Matthias > > > >> -----Original Message----- > >> From: Christophe Geuzaine [mailto:[email protected]] > >> Sent: Wednesday, January 28, 2009 2:56 PM > >> To: Zenker, Dr. Matthias > >> Cc: [email protected] > >> Subject: Re: [Gmsh] dxf or other 2D import? > >> > >> Zenker, Dr. Matthias wrote: > >>> Thank you for the info. > >>> Since I have no C/C++ compiler on my system (Windoze XP > >> SP2): Is there a binary available? > >>> Are there plans to incorporate the converter into gmsh? > >> No, this converter is very limited (it only translates points and > >> curves). It can be useful to get the main features of an autocad > >> file, but you'll have to fix the sketch by hand. > >> > >> At the moment I think your best bet is still to export/import STEP. > >> > >> > >>> The link in the description is unfortunately dead. > >>> > >>> Matthias > >>> > >>>> -----Original Message----- > >>>> From: David Colignon [mailto:[email protected]] > >>>> Sent: Wednesday, January 28, 2009 1:24 PM > >>>> To: Zenker, Dr. Matthias > >>>> Cc: [email protected] > >>>> Subject: Re: [Gmsh] dxf or other 2D import? > >>>> > >>>> Hi Matthias, > >>>> > >>>> we have a very basic dxf to geo converter in > >>>> utils/converters/autocad/dxf2geo.cpp : > >>>> > >>>> ... > >>>> ... > >>>> // This is a simple AutoCAD DXF to Gmsh GEO Data File > >> Converter // // > >>>> It was created from the AutoCAD DXF file to DKB data file > >> converter > >>>> // written and placed in the public domain 8/13/90 by > Aaron // A. > >>>> Collins (http://www.sdsc.edu/~mjb/mae152/dxf.spec.txt). > >>>> // > >>>> // It parses a limited, but useful, subset of the AutoCAD > >> DXF file // > >>>> format. No effort has been made to handle the complete > range of // > >>>> possible DXF opcodes and commands. > >>>> ... > >>>> ... > >>>> > >>>> Cheers, > >>>> > >>>> Dave > >>>> > >>>> > >>>> -- > >>>> David Colignon, Ph.D. > >>>> Collaborateur Logistique du F.R.S.-FNRS CÉCI - Consortium des > >>>> Équipements de Calcul Intensif ACE - Applied & Computational > >>>> Electromagnetics Sart-Tilman B28 Université de Liège > 4000 Liège - > >>>> BELGIQUE > >>>> Tél: +32 (0)4 366 37 32 > >>>> Fax: +32 (0)4 366 29 10 > >>>> WWW: http://hpc.montefiore.ulg.ac.be/ > >>>> Agenda: > >>>> > http://www.google.com/calendar/embed?src=david.colignon%40gmail.com > >>>> > >>>> > >>>> > >>>> Zenker, Dr. Matthias wrote: > >>>>> Hi, > >>>>> > >>>>> I need to import 2D data generated as cuts from a 3D model in > >>>>> SolidWorks. One possibility would be to define a cut in > >>>> SolidWorks and > >>>>> export it as dxf (AutoCAD format). But it seems like gmsh > >>>> is not able to > >>>>> read dxf. Is there something I am missing (I just tried > >>>> File->Open in > >>>>> gmsh, it gave me a an error message)? Or what would be the best > >>>>> (quickest) way to get the cut into gmsh? Is there any 2D > >>>> vector format > >>>>> it can read? > >>>>> > >>>>> The way I have done it before is to take a slice instead > >> of a cut, > >>>>> export it to STEP format, import it into gmsh and delete > >>>> manually all > >>>>> volumes, surfaces, lines and points in the 3rd dimension, > >>>> which can be > >>>>> very tedious for complex geometries. > >>>>> > >>>>> Any suggestions would be welcome. > >>>>> > >>>>> BTW, is there a complete list of all formats gmsh can read > >>>> and write? I > >>>>> have not found it in the manual, but I may have overlooked it... > >>>>> > >>>>> Thanks, > >>>>> > >>>>> Matthias > >>>>> > >>>>> ---------------------------------------------------------------- > >>>>> ERBE Elektromedizin GmbH > >>>>> Dr.rer.nat. Matthias Zenker > >>>>> Dipl. Phys. > >>>>> Grundlagenentwicklung Technologie > >>>>> Waldhoernlestrasse 17 > >>>>> 72072 Tuebingen > >>>>> Phone + 49 7071 - 755 226 > >>>>> Fax + 49 7071 - 755 5226 > >>>>> _mailto:[email protected]_ > >>>>> _www.ERBE-med.de_ <file://www.ERBE-med.de> > >>>>> ---------------------------------------------------------------- > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> ERBE Elektromedizin GmbH > >>>>> Firmensitz: 72072 Tuebingen > >>>>> Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede > >>>>> Registergericht: Stuttgart HRB 380137 > >>>>> > >>>>> > >>>>> > >>>>> > >>>> -------------------------------------------------------------- > >>>> ---------- > >>>>> _______________________________________________ > >>>>> gmsh mailing list > >>>>> [email protected] > >>>>> http://www.geuz.org/mailman/listinfo/gmsh > >>> > >> > _____________________________________________________________________ > >>> ERBE Elektromedizin GmbH > >>> Firmensitz: 72072 Tuebingen > >>> Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede > >>> Registergericht: Stuttgart HRB 380137 > >>> > >>> > >>> _______________________________________________ > >>> gmsh mailing list > >>> [email protected] > >>> http://www.geuz.org/mailman/listinfo/gmsh > >>> > >>> > >> > >> -- > >> Prof. Christophe Geuzaine > >> University of Liege, Electrical Engineering and Computer Science > >> http://www.montefiore.ulg.ac.be/~geuzaine > >> > > > > > _____________________________________________________________________ > > ERBE Elektromedizin GmbH > > Firmensitz: 72072 Tuebingen > > Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede > > Registergericht: Stuttgart HRB 380137 > > > > > > > > > -- > Prof. Christophe Geuzaine > University of Liege, Electrical Engineering and Computer > Science http://www.montefiore.ulg.ac.be/~geuzaine > > > _____________________________________________________________________ ERBE Elektromedizin GmbH Firmensitz: 72072 Tuebingen Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede Registergericht: Stuttgart HRB 380137 _______________________________________________ gmsh mailing list [email protected] http://www.geuz.org/mailman/listinfo/gmsh
