> On 28 Dec 2020, at 01:43, Miroslav Grulovic <[email protected]> wrote: > > Hello Christophe, merry Christmas, hope you are safe. > > I am sorry but appears that there is some sort of miscommunication btw us. > Reading in and creating p3d files in GMSH works well, bu that is not issue. > Problem is once p3d wile is read in GMSH and then saved as NASTRAN bdf, GMSH > does not recognize it as STRUCTURED mesh , thus whensame geometry previously > saved as bdf is read in GMSH and tried to export as p3d, program is failing. > > Issue is how to set GMSH to recognize structured mesh in NASTRAN format and > then export it as p3d. >
That's indeed normal, as Gmsh only import/exports unstructured Nastran mesh files. Christophe > > Cheers, and stay safe. Season greetings > > Miro > > > > On Wednesday, December 2, 2020, 12:51:29 PM EST, Christophe Geuzaine > <[email protected]> wrote: > > > > > > On 27 Nov 2020, at 11:20, Christophe Geuzaine <[email protected]> wrote: > > > > > > > >> On 26 Nov 2020, at 20:00, Miroslav Grulovic <[email protected]> > >> wrote: > >> > >> Hello there > >> > >> Ia am involved in little project using NASA PMARC14 software, and recently > >> noticed some Plot3D capabilities which are aso build in GMSH. However I > >> have noticed that GMSH ( version 4.5.6 ) perfectly read p3d files and > >> exporting them to NASTRAN format bdf, but when tried to convert very same > >> file back to Plot3D format, error message pops up . > >> Error reads " Warning : No structured grid to save " and creates empty > >> p3d file. > >> Appears that software does not recognizes its own routine so please > >> advise, do I am doing something wrong or software is not capable of such > >> as transformation. > >> > > > > Indeed, currently when we read structured meshes we import them as general > > unstructured grids. > > Well actually I was wrong, and we do actually already keep track of the > structured information in the reader. > > To test: > > // create p3d file > gmsh benchmarks/3d/sphere_in_cube_hexa.geo -3 -o a.p3d > > // read it back and save it again > gmsh a.p3d -save -o b.p3d > > Works fine with the latest Gmsh. > > Christophe > > > > The P3D reader could be changed to keep track of the structured > > information. Maybe open an issue on the gitlab to keep track of this > > feature request? > > > > Christophe > > > > > >> Cheers thanks for response and stay safe. > >> > >> > >> Miro > >> _______________________________________________ > >> gmsh mailing list > >> [email protected] > >> http://onelab.info/mailman/listinfo/gmsh > > > > — > > Prof. Christophe Geuzaine > > University of Liege, Electrical Engineering and Computer Science > > http://people.montefiore.ulg.ac.be/geuzaine > > > > > > > > > > > > > _______________________________________________ > > gmsh mailing list > > [email protected] > > http://onelab.info/mailman/listinfo/gmsh > > — > Prof. Christophe Geuzaine > University of Liege, Electrical Engineering and Computer Science > http://people.montefiore.ulg.ac.be/geuzaine > > > > _______________________________________________ > gmsh mailing list > [email protected] > http://onelab.info/mailman/listinfo/gmsh — Prof. Christophe Geuzaine University of Liege, Electrical Engineering and Computer Science http://people.montefiore.ulg.ac.be/geuzaine _______________________________________________ gmsh mailing list [email protected] http://onelab.info/mailman/listinfo/gmsh
