Geordie McBain wrote: > How do you define the sign of a numbering of the vertices in a > polyhedron? Is there a definition?
I'm following Gmsh's node ordering reference, which is available at: http://www.geuz.org/gmsh/doc/texinfo/gmsh.html#Node-ordering > I know for tetrahedra there are two essentially distinct possible > numbering This isn't a node ordering problem per se. My only issue is that according to Gmsh's manual it appears there is an inconsistency regarding the local coordinate system for the prism family of elements. In fact it appears that, at least on the ASCII art representation presented in the manual, the tetrahedron and hexahedron element family follow a "right-hand" coordinate system while the prism and pyramid follow a "left-hand" one. Either way, this isn't exactly a problem. I've raised this issue as I'm having troubles generating meshes of specific element types and therefore I'm not able to check if the local coordinate system inconsistencies are present only in the manual's representation or if has any impact on the generated elements. Rui Maciel _______________________________________________ gmsh mailing list [email protected] http://www.geuz.org/mailman/listinfo/gmsh
