Dear Roland, Very briefly, the structure mesh_level_set contains all the data concerning how the mesh is cut by the level-set. There is no extensive documentation on it but you can have a look on the source files getfem_mesh_level_set.h and getfem_mesh_level_set.cc
In particular mls.is_convex_cut(i) says if element i is cut or not by the level-set. mls.mesh_of_convex(i) gives the sub-mesh of an element cut by the level-set. and mls.primary_zone_of_convex(i) gives some information about where is the element with respect to the level-sets. The option INTEGRATE_OUTSIDE of the mesh_im_level_set object gives a standard integration method for the element uncut by the level-set(s) and build a specific integration method for each element cut by the level-set(s) based on the sub mesh given by the mesh_level_set object. Yves. Roland Stoffel <[email protected]> a écrit : > Hello, > > i like to solve the linear elasticity as well as the eikonal equation on > a level set framework. > For this it will be helpfull if i can get explicit access to the > convexes (and with this to the matching unknowns) where p(x) > 0 rsp. > p(x) < 0 and the boundary p(x) = 0, especially the coordinates where > p(x) = 0. > How does getfem cut the mesh and how can i get the cut parts? > How does the options INTEGRATE_OUTSIDE etc. work? > > Many thanks > Roland > > -- > -------------------------------------------------------------------- > Roland Stoffel + Phone: +49 651/201 - 3463 > Universität Trier + > FB IV Mathematik + www: www.mathematik.uni-trier.de/~stoffel > 54286 Trier + Email: [email protected] > -------------------------------------------------------------------- > > > _______________________________________________ > Getfem-users mailing list > [email protected] > https://mail.gna.org/listinfo/getfem-users > _______________________________________________ Getfem-users mailing list [email protected] https://mail.gna.org/listinfo/getfem-users
