diff options
Diffstat (limited to 'src/python')
| -rw-r--r-- | src/python/gudhi/simplex_tree.pyx | 3 | ||||
| -rw-r--r-- | src/python/include/Simplex_tree_interface.h | 6 |
2 files changed, 9 insertions, 0 deletions
diff --git a/src/python/gudhi/simplex_tree.pyx b/src/python/gudhi/simplex_tree.pyx index cdd2e87b..7d6ab89a 100644 --- a/src/python/gudhi/simplex_tree.pyx +++ b/src/python/gudhi/simplex_tree.pyx @@ -627,6 +627,9 @@ cdef class SimplexTree: :param nb_iterations: The number of edge collapse iterations to perform. Default is 1. :type nb_iterations: int + + :note: collapse_edges function requires `Eigen <installation.html#eigen>`_ >= 3.1.0, otherwise no action is + performed. """ # Backup old pointer cdef Simplex_tree_interface_full_featured* ptr = self.get_ptr() diff --git a/src/python/include/Simplex_tree_interface.h b/src/python/include/Simplex_tree_interface.h index baff3850..2bd704b4 100644 --- a/src/python/include/Simplex_tree_interface.h +++ b/src/python/include/Simplex_tree_interface.h @@ -15,7 +15,9 @@ #include <gudhi/distance_functions.h> #include <gudhi/Simplex_tree.h> #include <gudhi/Points_off_io.h> +#ifdef GUDHI_USE_EIGEN3 #include <gudhi/Flag_complex_edge_collapser.h> +#endif #include <iostream> #include <vector> @@ -162,6 +164,7 @@ class Simplex_tree_interface : public Simplex_tree<SimplexTreeOptions> { } Simplex_tree_interface* collapse_edges(int nb_collapse_iteration) { +#ifdef GUDHI_USE_EIGEN3 using Filtered_edge = std::tuple<Vertex_handle, Vertex_handle, Filtration_value>; std::vector<Filtered_edge> edges; for (Simplex_handle sh : Base::skeleton_simplex_range(1)) { @@ -187,6 +190,9 @@ class Simplex_tree_interface : public Simplex_tree<SimplexTreeOptions> { collapsed_stree_ptr->insert({std::get<0>(remaining_edge), std::get<1>(remaining_edge)}, std::get<2>(remaining_edge)); } return collapsed_stree_ptr; +#else + return this; +#endif } // Iterator over the simplex tree |