Moved into trunk

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/trunk@341 636b058d-ea47-450e-bf9e-a15bfbe3eedb

1 files changed, 37 insertions, 0 deletions

diff --git a/src/common/include/gudhi/distance_functions.h b/src/common/include/gudhi/distance_functions.h
new file mode 100644
index 00000000..7a2ab035
--- /dev/null
+++ b/src/common/include/gudhi/distance_functions.h
@@ -0,0 +1,37 @@
+ /*    This file is part of the Gudhi Library. The Gudhi library 
+  *    (Geometric Understanding in Higher Dimensions) is a generic C++ 
+  *    library for computational topology.
+  *
+  *    Author(s):       Clément Maria
+  *
+  *    Copyright (C) 2014  INRIA Sophia Antipolis-Méditerranée (France)
+  *
+  *    This program is free software: you can redistribute it and/or modify
+  *    it under the terms of the GNU General Public License as published by
+  *    the Free Software Foundation, either version 3 of the License, or
+  *    (at your option) any later version.
+  *
+  *    This program is distributed in the hope that it will be useful,
+  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  *    GNU General Public License for more details.
+  *
+  *    You should have received a copy of the GNU General Public License
+  *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  */
+
+/* Compute the Euclidean distance between two Points given
+ * by a range of coordinates. The points are assumed to have 
+ * the same dimension. */
+template< typename Point >
+double euclidean_distance( Point &p1, Point &p2)
+{
+  double dist = 0.;
+  auto it1 = p1.begin(); auto it2 = p2.begin();
+  for(; it1 != p1.end(); ++it1, ++it2) 
+    { 
+      double tmp = *it1 - *it2;
+      dist += tmp*tmp; 
+    }
+    return sqrt(dist);
+}