> On 7 Dec 2020, at 22:30, Paul K <paulklasm...@hotmail.com> wrote: > > Dear All, > I would like to generate a parabaloid surface, for example a parabolic > reflector surface that is defined by an equation. Is this possible? First I > would use Gmsh on its own to generate the surface mesh that I plan to use in > a physical optics PO and GTD simulation. In a CAD program I would plot the > curve from the vertex and rotate into a BOR object. > Second, I'd like to be able generate any arbitary surface using a function so > that I can simulate a shaped or distorted reflector. Any advice would be > greatly appreciated. >
There's currently no predefined primitive for parabolas in Gmsh, but depending on the required accuracy you could maybe simply fit a spline through some points? If having an exact parabola is mandatory, we could interface https://old.opencascade.com/doc/occt-7.0.0/refman/html/class_geom___parabola.html. In this case we should decide on the interface, as providing the bounding points might not be practical (and not even that simple). Let us know, Christophe > My final goal is to write a C++ program with a wxWidgets GUI and to include > gmsh as the mesh generator for the PO simulator and possibly have a way of > visualising the reflector and mesh. Thank you. > > Kind Regards > Paul > _______________________________________________ > gmsh mailing list > gmsh@onelab.info > 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 gmsh@onelab.info http://onelab.info/mailman/listinfo/gmsh
