Hi Guillaume, Indeed Gmsh handles most (if not all) meshes as unstructured. Our new CGNS importer now handles structured meshes as input ; but the exporter still currently exports even structured meshes as unstructured. We plan to add simple structured CGNS grids for our transfinite meshes - but it's not done yet. Any help with this would actually be welcome.
Best, Christophe > On 16 Jan 2020, at 10:59, Guillaume Florent <[email protected]> wrote: > > Hello, > > This is my first message on the mailing list, so please apologize any > wandering off the Gmsh community culture ... > > I want to create a structured/block-structured (obviously quads) surface mesh > and export it to either Plot3D XYZ format or to CGNS structured format to use > it as an input for another hyperbolic mesher. > > Starting with a simple cube, I realized that: > > - I could not find an exporter to Plot3D XYZ format (I yet have to see if the > P3D export format can be converted to XYZ) > > - even for a simple transfinite surface mesh on a cube face, I get an > unstructured CGNS mesh when exported ('Unstructured' is in plain text in the > exported file and the hyperbolic mesher complains about that since it expects > a structured mesh). > > Am I missing something or hitting a Gmsh limit? > > Best regards, > > Guillaume Florent (Yacht Design + Engineering) > > > _______________________________________________ > gmsh mailing list > [email protected] > http://onelab.info/mailman/listinfo/gmsh — Prof. Christophe Geuzaine University of Liege, Electrical Engineering and Computer Science http://www.montefiore.ulg.ac.be/~geuzaine _______________________________________________ gmsh mailing list [email protected] http://onelab.info/mailman/listinfo/gmsh
