General function for modification of mesh_levelset objects.
gf_mesh_levelset_set(mesh_levelset MLS, 'add', levelset ls)
gf_mesh_levelset_set(mesh_levelset MLS, 'sup', levelset ls)
gf_mesh_levelset_set(mesh_levelset MLS, 'adapt')
General function for modification of mesh_levelset objects.
gf_mesh_levelset_set(mesh_levelset MLS, 'add', levelset ls)
Add a link to the levelset ls.
    Only a reference is kept, no copy is done. In order to indicate
    that the linked mesh is cut by a levelset one has to call this
    method, where ls is an levelset object. An arbitrary number of
    levelset can be added.
    **WARNING**
    The mesh of ls and the linked mesh must be the same.
gf_mesh_levelset_set(mesh_levelset MLS, 'sup', levelset ls)
Remove a link to the levelset ls.
gf_mesh_levelset_set(mesh_levelset MLS, 'adapt')
Do all the work (cut the convexes with the levelsets). To initialice the mesh_levelset object or to actualize it when the value of any levelset function is modified, one has to call this method.
Y. Collette