prune_above_filtration returns filtration vector modification information instead of calling initialize_filtration()

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/alphashapes@1071 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: 6fdc1797ac6e7b452abe150643f0ec9578c3bbab

1 files changed, 3 insertions, 3 deletions

diff --git a/src/Alpha_complex/include/gudhi/Alpha_complex.h b/src/Alpha_complex/include/gudhi/Alpha_complex.h
index 330b3b34..33830175 100644
--- a/src/Alpha_complex/include/gudhi/Alpha_complex.h
+++ b/src/Alpha_complex/include/gudhi/Alpha_complex.h
@@ -230,8 +230,6 @@ class Alpha_complex : public Simplex_tree<> {
     }
 
     set_dimension(triangulation_->maximal_dimension());
-    // set_filtration to +inf for prune_above_filtration to be done (if necessary)
-    set_filtration(std::numeric_limits<Filtration_value>::infinity());
 
     // --------------------------------------------------------------------------------------------
     // double map to retrieve simplex tree vertex handles from CGAL vertex iterator and vice versa
@@ -323,7 +321,9 @@ class Alpha_complex : public Simplex_tree<> {
       initialize_filtration();
     }
     // Remove all simplices that have a filtration value greater than max_alpha_square
-    prune_above_filtration(max_alpha_square);
+    if (prune_above_filtration(max_alpha_square)) {
+      initialize_filtration();
+    }
     // --------------------------------------------------------------------------------------------
   }