diff options
Diffstat (limited to 'src/python/gudhi/simplex_tree.pyx')
| -rw-r--r-- | src/python/gudhi/simplex_tree.pyx | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/src/python/gudhi/simplex_tree.pyx b/src/python/gudhi/simplex_tree.pyx index 3ebae923..bc5b43f4 100644 --- a/src/python/gudhi/simplex_tree.pyx +++ b/src/python/gudhi/simplex_tree.pyx @@ -293,12 +293,14 @@ cdef class SimplexTree: :returns: The (simplices of the) boundary of a simplex :rtype: generator with tuples(simplex, filtration) """ - cdef Simplex_tree_boundary_iterator it = self.get_ptr().get_boundary_iterator_begin(simplex) - cdef Simplex_tree_boundary_iterator end = self.get_ptr().get_boundary_iterator_end(simplex) - - while it != end: - yield self.get_ptr().get_simplex_and_filtration(dereference(it)) - preincrement(it) + cdef pair[Simplex_tree_boundary_iterator, Simplex_tree_boundary_iterator] it = self.get_ptr().get_boundary_iterators(simplex) + + try: + while it.first != it.second: + yield self.get_ptr().get_simplex_and_filtration(dereference(it.first)) + preincrement(it.first) + except RuntimeError: + print("simplex not found - cannot find boundaries") def remove_maximal_simplex(self, simplex): |