Knell, Sascha wrote: > Hi, > > > > I intend to use gmsh in batch mode to mesh polygonal plane surfaces > whereas nodes of the final mesh may only lie on predefined, equally > spaced spots on the straight edges of the surface. The distance of these > spots may not differ by more than factor two on the different edges of > the surface. I tried to realize this by constructing an edges from > several aligned lines and setting the minimum / maximum characteristic > length to the minimum / maximum desired node distance. Regrettably, some > of the longer lines exhibited additional nodes after meshing. I guess > that I have misinterpreted the meaning of the characteristic length. > > > > Triangle, by Jonathan Richard Shewchuk, has an option to prevent the > generation of additional nodes on line segments. Is there a way > achieving the same in gmsh? I would prefer to use gmesh, since eyeball > comparison indicates that gmsh produces meshes of better quality. > >
Hi Sascha - To enforce that the segments only have 2 vertices whatever the prescribed characteristic length, you could do Transfinite Line "*" = 2; > > Thanks in advance. > > > > Best regards, > > > > Sascha Knell > > > ------------------------------------------------------------------------ > > _______________________________________________ > gmsh mailing list > [email protected] > http://www.geuz.org/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://www.geuz.org/mailman/listinfo/gmsh
