Modification for Porquerolles Workshop

Bar_code_persistence and alpha_complex_persistence


git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/alphashapes@893 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: 63d2d21d5ff7c9a94a67eafc326bf8a561bf8166

1 files changed, 8 insertions, 0 deletions

diff --git a/src/Persistent_cohomology/include/gudhi/Persistent_cohomology.h b/src/Persistent_cohomology/include/gudhi/Persistent_cohomology.h
index d096792f..f6773bac 100644
--- a/src/Persistent_cohomology/include/gudhi/Persistent_cohomology.h
+++ b/src/Persistent_cohomology/include/gudhi/Persistent_cohomology.h
@@ -713,6 +713,14 @@ class Persistent_cohomology {
     }
   }
 
+  void get_persistence(std::vector<std::pair<double, double>>& persistence) {
+    cmp_intervals_by_length cmp(cpx_);
+    std::sort(std::begin(persistent_pairs_), std::end(persistent_pairs_), cmp);
+    for (auto pair : persistent_pairs_) {
+      persistence.push_back(std::make_pair(cpx_->filtration(get<0>(pair)), cpx_->filtration(get<1>(pair))));
+    }
+  }
+
   void write_output_diagram(std::string diagram_name) {
     std::ofstream diagram_out(diagram_name.c_str());
     cmp_intervals_by_length cmp(cpx_);