Getfem Matlab Interface

The convex structures are internal structures of getfem++. They do not contain points positions. These structures are recursive, since the faces of a convex structures are convex structures. The dimension is returned by gf_cvstruct_get(cs, 'dim'), and the number of points is given by gf_cvstruct_get(cs, 'nbpts'). Note that a triangle structure may have 6 points, if it is a structure associated to a 'GT_PK(2,2)' geometric transformation. But the canonical 3-noded triangle structure would be returned by gf_cvstruct_get(cs, 'basic structure'). The structure of the ith face can be obtained with gf_cvstruct_get(cs, 'face', i), and the indices of its points are returned by gf_cvstruct_get(cs, 'facepts', i).