On Sun, Jul 18, 2010 at 01:24:41PM +0200, Konstantinos Poulios wrote: > Hi, > > this is the answer Yves had given to a similar question of mine: > > > Normally, you should only work with dof number, not point number. > > A point is a vertex of an element in the mesh. You do not have necessary > > a correspondance between vertex of the mesh and dofs (think to non-coformal > > P1 for instance). > > I hope it helps. Something else that I consider as relevant is a > snippet given in: > > bgeot_kdtree.h > see: > http://download.gna.org/getfem/doc/getfem_reference/bgeot__kdtree_8h_source..html > > which shows a way to implement a mapping between dofs and point numbers. > > In my case I had finally found a solution which didn't require this mapping.. >
Thanks for your answer. I have asked that question because in domains for truss or frame structures it is customary and convenient to select DOFs via nodes. Those are however some special cases so building a respective mapping should be possible. I agree that in general case and for more dimensional domains working with mesh nodes can be problematic. This issue is probably worth a short notice in the documentation especially for beginners in FEM. Regards, Roman -- Roman Putanowicz, PhD < [email protected] > Institute for Computational Civil Engng (L-5) Dept. of Civil Engng, Cracow Univ. of Technology www.l5.pk.edu.pl, tel. +48 12 628 2569, fax 2034 _______________________________________________ Getfem-users mailing list [email protected] https://mail.gna.org/listinfo/getfem-users
