Merge C++ version of persistence representation

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/persistence_representation_integration_bis@3043 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: 6421c7cbe670fad1a8900ccc0ea6ff32297dd5e7

1 files changed, 65 insertions, 0 deletions

diff --git a/src/Persistence_representations/utilities/persistence_heat_maps/average_persistence_heat_maps.cpp b/src/Persistence_representations/utilities/persistence_heat_maps/average_persistence_heat_maps.cpp
new file mode 100644
index 00000000..4e81375a
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_heat_maps/average_persistence_heat_maps.cpp
@@ -0,0 +1,65 @@
+/*    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):       Pawel Dlotko
+ *
+ *    Copyright (C) 2016  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/Persistence_heat_maps.h>
+
+#include <iostream>
+#include <vector>
+
+using constant_scaling_function = Gudhi::Persistence_representations::constant_scaling_function;
+using Persistence_heat_maps = Gudhi::Persistence_representations::Persistence_heat_maps<constant_scaling_function>;
+
+int main(int argc, char** argv) {
+  std::cout << "This program computes average persistence landscape of persistence landscapes created based on "
+               "persistence diagrams provided as an input. Please call this program with the names of files with "
+               "persistence diagrams \n";
+  std::vector<const char*> filenames;
+
+  if (argc == 1) {
+    std::cout << "No input files given, the program will now terminate \n";
+    return 1;
+  }
+
+  for (int i = 1; i < argc; ++i) {
+    filenames.push_back(argv[i]);
+  }
+
+  std::cout << "Creating persistence landscapes...\n";
+  std::vector<Persistence_heat_maps*> maps;
+  for (size_t i = 0; i != filenames.size(); ++i) {
+    Persistence_heat_maps* l = new Persistence_heat_maps;
+    l->load_from_file(filenames[i]);
+    maps.push_back(l);
+  }
+
+  Persistence_heat_maps av;
+  av.compute_average(maps);
+
+  av.print_to_file("average.mps");
+
+  for (size_t i = 0; i != filenames.size(); ++i) {
+    delete maps[i];
+  }
+
+  std::cout << "Done \n";
+  return 0;
+}