Fabian Braennstroem wrote: > Hi Christophe, > > * On 20 Jul 2008 * Christophe Geuzaine wrote: > >> Fabian Braennstroem wrote: >>> Hi, >>> >>> I have a small problem, when importing an igs (exported by >>> ICEM) geometry. Actually the import works well, >>> but as soon as I save it as a geo file, I get a lot more >>> points then in the igs file. I attach to snapshots. Do I >>> do anything wrong? >> Not really: the geo export is pretty much there for debugging purposes >> only. The reason you get more points is probably that the straight lines >> in the iges files are represented e.g. by splines instead of line >> segments. >> >> Our goal is to mesh iges/step files directly, without converting them >> into geo format first... > > Did not know that; sounds nice. > >>> The view is an extraction of a simple diffuser, which I >>> want to mesh with hexa elements. >>> >> ...but indeed, for this you would have to convert the iges file into geo >> format, since we haven't (yet) interfaced the structured meshing commands >> with general CAD files. > > Sounds even better. > >> Why is having more control points a problem? > > It is actually not a problem, but the geo file gets > completely messy and I am not able to do the definition of > the mesh by hand!?
to generate hexas with Gmsh you'll currently need to define either transfinite volumes (cf. demos/transfinite.geo) or use extrusion (sweeping). > > Thanks! > Fabian -- Prof. Christophe Geuzaine University of Liege, Electrical Engineering and Computer Science http://www.montefiore.ulg.ac.be/~geuzaine _______________________________________________ gmsh mailing list [email protected] http://www.geuz.org/mailman/listinfo/gmsh
