integrated kernel code in pers_representation branch

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/kernels@3249 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: 58e77263a0da3674e4699cef832b6d357dcf12e2

1 files changed, 55 insertions, 0 deletions

diff --git a/src/Persistence_representations/example/sliced_wasserstein.cpp b/src/Persistence_representations/example/sliced_wasserstein.cpp
new file mode 100644
index 00000000..673d8474
--- /dev/null
+++ b/src/Persistence_representations/example/sliced_wasserstein.cpp
@@ -0,0 +1,55 @@
+/*    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):       Mathieu Carriere
+ *
+ *    Copyright (C) 2018  INRIA (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/>.
+ */
+
+#include <gudhi/Sliced_Wasserstein.h>
+
+#include <iostream>
+#include <vector>
+#include <utility>
+
+using SW = Gudhi::Persistence_representations::Sliced_Wasserstein;
+
+int main(int argc, char** argv) {
+
+  std::vector<std::pair<double, double> > persistence1;
+  std::vector<std::pair<double, double> > persistence2;
+
+  persistence1.push_back(std::make_pair(1, 2));
+  persistence1.push_back(std::make_pair(6, 8));
+  persistence1.push_back(std::make_pair(0, 4));
+  persistence1.push_back(std::make_pair(3, 8));
+
+  persistence2.push_back(std::make_pair(2, 9));
+  persistence2.push_back(std::make_pair(1, 6));
+  persistence2.push_back(std::make_pair(3, 5));
+  persistence2.push_back(std::make_pair(6, 10));
+
+  SW SW1(persistence1);
+  SW SW2(persistence2);
+
+  std::cout << SW1.compute_sliced_wasserstein_distance(SW2,100) << std::endl;
+  std::cout << SW1.compute_sliced_wasserstein_distance(SW2,-1) << std::endl;
+  std::cout << SW1.compute_scalar_product(SW2,1,100) << std::endl;
+  std::cout << SW1.distance(SW2,1,100,1) << std::endl;
+
+  return 0;
+}