On Tue, May 15, 2018 at 5:37 AM, Griffith, Boyce Eugene < boy...@email.unc.edu> wrote:
> Folks -- > > Is there an easy way in the library to get normal vectors on surface > meshes (e.g. 2D elements in 3D space, 1D elements in 2D space, etc)? It > seems like most of the support for this assumes that these are only needed > for doing surface integrals on volumetric meshes, but I am sure I am > overlooking something. > The "simplest" way is to build an FE object and only pre-request the normals by calling: const std::vector<Point> & face_normals = fe_face->get_normals(); (an example can be seen in adaptivity_ex4). The normals could of course be computed using only geometric information, but this is not currently implemented. -- John ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
