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+/* 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): Siargey Kachanovich
+ *
+ * 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/>.
+ */
+
+#define BOOST_PARAMETER_MAX_ARITY 12
+
+#include <gudhi/Simplex_tree.h>
+#include <gudhi/Witness_complex.h>
+#include <gudhi/Persistent_cohomology.h>
+
+#include <iostream>
+#include <fstream>
+#include <utility>
+#include <string>
+#include <vector>
+
+int main(int argc, char * const argv[]) {
+ using Nearest_landmark_range = std::vector<std::pair<std::size_t, double>>;
+ using Nearest_landmark_table = std::vector<Nearest_landmark_range>;
+ using Witness_complex = Gudhi::witness_complex::Witness_complex<Nearest_landmark_table>;
+ using Simplex_tree = Gudhi::Simplex_tree<>;
+ using Field_Zp = Gudhi::persistent_cohomology::Field_Zp;
+ using Persistent_cohomology = Gudhi::persistent_cohomology::Persistent_cohomology<Simplex_tree, Field_Zp>;
+
+ Simplex_tree simplex_tree;
+ Nearest_landmark_table nlt;
+
+ // Example contains 5 witnesses and 5 landmarks
+ Nearest_landmark_range w0 = {std::make_pair(0, 0), std::make_pair(1, 1), std::make_pair(2, 2),
+ std::make_pair(3, 3), std::make_pair(4, 4)}; nlt.push_back(w0);
+ Nearest_landmark_range w1 = {std::make_pair(1, 0), std::make_pair(2, 1), std::make_pair(3, 2),
+ std::make_pair(4, 3), std::make_pair(0, 4)}; nlt.push_back(w1);
+ Nearest_landmark_range w2 = {std::make_pair(2, 0), std::make_pair(3, 1), std::make_pair(4, 2),
+ std::make_pair(0, 3), std::make_pair(1, 4)}; nlt.push_back(w2);
+ Nearest_landmark_range w3 = {std::make_pair(3, 0), std::make_pair(4, 1), std::make_pair(0, 2),
+ std::make_pair(1, 3), std::make_pair(2, 4)}; nlt.push_back(w3);
+ Nearest_landmark_range w4 = {std::make_pair(4, 0), std::make_pair(0, 1), std::make_pair(1, 2),
+ std::make_pair(2, 3), std::make_pair(3, 4)}; nlt.push_back(w4);
+
+ Witness_complex witness_complex(nlt);
+ witness_complex.create_complex(simplex_tree, 4.1);
+
+ std::cout << "Number of simplices: " << simplex_tree.num_simplices() << std::endl;
+
+ Persistent_cohomology pcoh(simplex_tree);
+ // initializes the coefficient field for homology
+ pcoh.init_coefficients(11);
+
+ pcoh.compute_persistent_cohomology(-0.1);
+ pcoh.output_diagram();
+}