1 files changed, 63 insertions, 0 deletions
diff --git a/utilities/Persistence_representations/persistence_landscapes_on_grid/average_landscapes_on_grid.cpp b/utilities/Persistence_representations/persistence_landscapes_on_grid/average_landscapes_on_grid.cpp
new file mode 100644
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+++ b/utilities/Persistence_representations/persistence_landscapes_on_grid/average_landscapes_on_grid.cpp
@@ -0,0 +1,63 @@
+/*    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_landscape_on_grid.h>
+
+#include <iostream>
+#include <vector>
+
+using Persistence_landscape_on_grid = Gudhi::Persistence_representations::Persistence_landscape_on_grid;
+
+int main(int argc, char** argv) {
+  std::cout << "This program computes average of persistence landscapes on grid stored in files (the files needs to "
+            << "be created beforehand).\n"
+            << "The parameters of this programs are names of files with persistence landscapes on grid.\n";
+
+  if (argc < 3) {
+    std::cout << "Wrong number of parameters, the program will now terminate \n";
+    return 1;
+  }
+
+  std::vector<const char*> filenames;
+  for (int i = 1; i < argc; ++i) {
+    filenames.push_back(argv[i]);
+  }
+
+  std::vector<Persistence_landscape_on_grid*> lands;
+  for (size_t i = 0; i != filenames.size(); ++i) {
+    Persistence_landscape_on_grid* l = new Persistence_landscape_on_grid;
+    l->load_landscape_from_file(filenames[i]);
+    lands.push_back(l);
+  }
+
+  Persistence_landscape_on_grid av;
+  av.compute_average(lands);
+
+  av.print_to_file("average.g_land");
+
+  for (size_t i = 0; i != filenames.size(); ++i) {
+    delete lands[i];
+  }
+
+  std::cout << "Average can be found in 'average.g_land' file\n";
+  return 0;
+}