Add of tangential complex doc

Separate simplex tree from alpha complex



git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/ST_cythonize@1788 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: 1cf4a35e0a099501eb1cb6b9809041dd1a1e2617

1 files changed, 6 insertions, 4 deletions

diff --git a/src/cython/example/alpha_complex_diagram_persistence_from_off_file_example.py b/src/cython/example/alpha_complex_diagram_persistence_from_off_file_example.py
index d74eba57..40d06f93 100755
--- a/src/cython/example/alpha_complex_diagram_persistence_from_off_file_example.py
+++ b/src/cython/example/alpha_complex_diagram_persistence_from_off_file_example.py
@@ -52,15 +52,17 @@ with open(args.file, 'r') as f:
         message = "AlphaComplex with max_edge_length=" + repr(args.max_alpha_square)
         print(message)
         
-        alpha_complex = gudhi.AlphaComplex(off_file=args.file, max_alpha_square=args.max_alpha_square)
+        alpha_complex = gudhi.AlphaComplex(off_file=args.file)
+        simplex_tree = gudhi.SimplexTree()
+        alpha_complex.create_simplex_tree(simplex_tree, max_alpha_square=args.max_alpha_square)
     
-        message = "Number of simplices=" + repr(alpha_complex.num_simplices())
+        message = "Number of simplices=" + repr(simplex_tree.num_simplices())
         print(message)
         
-        diag = alpha_complex.persistence()
+        diag = simplex_tree.persistence()
     
         print("betti_numbers()=")
-        print(alpha_complex.betti_numbers())
+        print(simplex_tree.betti_numbers())
     
         if args.no_diagram == False:
             gudhi.diagram_persistence(diag)