1 files changed, 7 insertions, 4 deletions

diff --git a/src/cython/include/Simplex_tree_interface.h b/src/cython/include/Simplex_tree_interface.h
index 4266b3ef..154005ae 100644
--- a/src/cython/include/Simplex_tree_interface.h
+++ b/src/cython/include/Simplex_tree_interface.h
@@ -52,29 +52,30 @@ class Simplex_tree_interface : public Simplex_tree<SimplexTreeOptions> {
     return (Base::find(vh) != Base::null_simplex());
   }
 
+  bool insert(const Simplex& simplex, Filtration_value filtration = 0) {
+    Insertion_result result = Base::insert_simplex_and_subfaces(simplex, filtration);
+    return (result.second);
+  }
+
   bool insert_simplex(const Simplex& simplex, Filtration_value filtration = 0) {
     Insertion_result result = Base::insert_simplex(simplex, filtration);
-    Base::initialize_filtration();
     return (result.second);
   }
 
   bool insert_simplex_and_subfaces(const Simplex& simplex, Filtration_value filtration = 0) {
     Insertion_result result = Base::insert_simplex_and_subfaces(simplex, filtration);
-    Base::initialize_filtration();
     return (result.second);
   }
 
   // Do not interface this function, only used in strong witness interface for complex creation
   bool insert_simplex(const std::vector<std::size_t>& complex, Filtration_value filtration = 0) {
     Insertion_result result = Base::insert_simplex(complex, filtration);
-    Base::initialize_filtration();
     return (result.second);
   }
 
   // Do not interface this function, only used in strong witness interface for complex creation
   bool insert_simplex_and_subfaces(const std::vector<std::size_t>& complex, Filtration_value filtration = 0) {
     Insertion_result result = Base::insert_simplex_and_subfaces(complex, filtration);
-    Base::initialize_filtration();
     return (result.second);
   }
 
@@ -88,6 +89,7 @@ class Simplex_tree_interface : public Simplex_tree<SimplexTreeOptions> {
   }
 
   Complex get_filtered_tree() {
+    Base::initialize_filtration();
     Complex filtered_tree;
     for (auto f_simplex : Base::filtration_simplex_range()) {
       Simplex simplex;
@@ -140,6 +142,7 @@ class Simplex_tree_interface : public Simplex_tree<SimplexTreeOptions> {
   }
 
   void create_persistence(Gudhi::Persistent_cohomology_interface<Base>* pcoh) {
+    Base::initialize_filtration();
     pcoh = new Gudhi::Persistent_cohomology_interface<Base>(*this);
   }
 };