Merge C++ version of persistence representation

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/trunk@3044 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: c7d5d0f584b74dc0dd919e375d170e1998a9744f

1 files changed, 63 insertions, 0 deletions

diff --git a/src/Persistence_representations/utilities/persistence_vectors/create_persistence_vectors.cpp b/src/Persistence_representations/utilities/persistence_vectors/create_persistence_vectors.cpp
new file mode 100644
index 00000000..b618ca67
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_vectors/create_persistence_vectors.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_vectors.h>
+
+#include <iostream>
+#include <sstream>
+#include <limits>
+#include <vector>
+
+using Euclidean_distance = Gudhi::Euclidean_distance;
+using Vector_distances_in_diagram =
+  Gudhi::Persistence_representations::Vector_distances_in_diagram<Euclidean_distance>;
+
+int main(int argc, char** argv) {
+  std::cout << "This program creates persistence vectors of diagrams provided as an input. The first parameter of this "
+               "program is a dimension of persistence ";
+  std::cout << " that will be used in creation of the persistence vectors. If our input files contain persistence "
+               "pairs of various dimension, as a second parameter of the ";
+  std::cout << " procedure please provide the dimension of persistence you want to use. If in your file there are only "
+               "birth-death pairs of the same dimension, set the first parameter to -1."
+            << std::endl;
+  std::cout << "The remaining parameters are the names of files with persistence diagrams. \n";
+  int dim = atoi(argv[1]);
+  unsigned dimension = std::numeric_limits<unsigned>::max();
+  if (dim >= 0) {
+    dimension = (unsigned)dim;
+  }
+
+  std::vector<const char*> filenames;
+  for (int i = 2; i < argc; ++i) {
+    filenames.push_back(argv[i]);
+  }
+
+  for (size_t i = 0; i != filenames.size(); ++i) {
+    std::cerr << "Creating persistence vectors based on a file : " << filenames[i] << std::endl;
+    Vector_distances_in_diagram l(filenames[i], dimension);
+    std::stringstream ss;
+    ss << filenames[i] << ".vect";
+    l.print_to_file(ss.str().c_str());
+  }
+  std::cout << "Done \n";
+  return 0;
+}