Hello again, thank you very much for your quick reply.
2010/11/23 Jean-Francois Remacle <[email protected]>: > > Le 23-nov.-10 à 17:25, Meiner Auchmeiner a écrit : > > Hi gmsh group, > > > Hello, > > I was wondering if anybody here succeeded to mesh a STL geometry with > an unstructured mesh consisting of hexahedra elements. I'm trying to > mesh following file(s) using standard settings, except for the > subdivision algorithm "All hexas": 500.stl & 500.geo (see attachment). > I'm always getting the error messages "Error: Cannot evaluate point on > discrete face" and "Error: Cannot compute parametric coordinates on > discrete face". Whereas meshing the STL geometry with tetrahedron > elements work like a charm. Is there any intermediate step necessary > to optimize (maybe with e.g. MeshLab) the input STL geometry? Or is > there any gmsh preprocessing option/conversion I overlooked ? > > > There is actually NO automatic hexaedral mesher in GMSH. > For doing a better STL, you can use the reparametrization tools, see > https://geuz.org/trac/gmsh/wiki/STLRemeshing (username wiki, password wiki). > JF Hmm, so do I get you right, there is no way (yet?) of generating hexahedral meshes out of STL files in gmsh? In all my naivety I thought it would be possible in GMSH to subdivide tetrahedra elements in hexahedra elements... Say, what about the manual hexahedral mesher in GMSH you just mentioned, is it - with the right manually input - capable of meshing closed STL surface geometries with hexas? Uwe > Thanks > Uwe > > P.S.: The skeleton data have been obtained by courtesy of S. Van Sint > Jan, Laboratory of Anatomy, Biomechanics and Organogenesis, Université > Libre de Bruxelles. > <500.stl><500.geo>_______________________________________________ > gmsh mailing list > [email protected] > http://www.geuz.org/mailman/listinfo/gmsh > > ------------------------------------------------------------------ > Prof. Jean-Francois Remacle > Universite catholique de Louvain (UCL) > Ecole Polytechnique de Louvain (EPL) - Louvain School of Engineering > Institute of Mechanics, Materials and Civil Engineering (iMMC) > Center for Systems Engineering and Applied Mechanics (CESAME) > Tel : +32-10-472352 -- Mobile : +32-473-909930 > > > > > > _______________________________________________ gmsh mailing list [email protected] http://www.geuz.org/mailman/listinfo/gmsh
