Changes from the getfem-interface-1.7
A (small) number of changes have been made which break backward compability with the releases 1.x of gfi. The most important one, is the splitting of the old mesh fem structure into two parts:
- mesh_fem objects, which now hold only the finite elements
- mesh_im objects, which hold the integration methods
As a consequence, the assembly routines require a mesh_im object.
Another important change is the displacement of the "boundaries" from the old mesh fem objects into the mesh objects. They are now often refered to as "mesh regions" since they can hold set of convex faces, but also sets of convexes.
The old gf_solve function is now deprecated, and replaced by the "model bricks" of getfem++. Since these brick act as a black-box, some low-level examples have been kept for educational purposes.
The sparse matrices and sparse solvers of getfem are now available in the getfem-interface (these where required by the python interface since python does not have any sparse matrix routines). Note that these solvers (cg, superlu, etc) are often faster than the matlab ones.