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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): Vincent Rouvreau
+ *
+ * Copyright (C) 2016 INRIA
+ *
+ * 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/>.
+ */
+
+#ifndef INCLUDE_TANGENTIAL_COMPLEX_INTERFACE_H_
+#define INCLUDE_TANGENTIAL_COMPLEX_INTERFACE_H_
+
+#include <gudhi/Simplex_tree.h>
+#include <gudhi/Tangential_complex.h>
+#include <gudhi/Points_off_io.h>
+#include <CGAL/Epick_d.h>
+
+#include "Simplex_tree_interface.h"
+
+#include <vector>
+#include <utility> // std::pair
+#include <iostream>
+#include <string>
+
+namespace Gudhi {
+
+namespace tangential_complex {
+
+class Tangential_complex_interface {
+ using Dynamic_kernel = CGAL::Epick_d< CGAL::Dynamic_dimension_tag >;
+ using Point_d = Dynamic_kernel::Point_d;
+ using TC = Tangential_complex<Dynamic_kernel, CGAL::Dynamic_dimension_tag, CGAL::Parallel_tag>;
+
+ public:
+ Tangential_complex_interface(const std::vector<std::vector<double>>& points) {
+ Dynamic_kernel k;
+ unsigned intrisic_dim = 0;
+ if (points.size() > 0)
+ intrisic_dim = points[0].size() - 1;
+
+ tangential_complex_ = new TC(points, intrisic_dim, k);
+ tangential_complex_->compute_tangential_complex();
+ num_inconsistencies_ = tangential_complex_->number_of_inconsistent_simplices();
+ }
+
+ Tangential_complex_interface(const std::string& off_file_name, bool from_file = true) {
+ Gudhi::Points_off_reader<Point_d> off_reader(off_file_name);
+ Dynamic_kernel k;
+ unsigned intrisic_dim = 0;
+ std::vector<Point_d> points = off_reader.get_point_cloud();
+ if (points.size() > 0)
+ intrisic_dim = points[0].size() - 1;
+
+ tangential_complex_ = new TC(points, intrisic_dim, k);
+ tangential_complex_->compute_tangential_complex();
+ num_inconsistencies_ = tangential_complex_->number_of_inconsistent_simplices();
+ }
+
+ ~Tangential_complex_interface() {
+ delete tangential_complex_;
+ }
+
+ std::vector<double> get_point(unsigned vh) {
+ std::vector<double> vd;
+ if (vh < tangential_complex_->number_of_vertices()) {
+ Point_d ph = tangential_complex_->get_point(vh);
+ for (auto coord = ph.cartesian_begin(); coord < ph.cartesian_end(); coord++)
+ vd.push_back(*coord);
+ }
+ return vd;
+ }
+
+ unsigned number_of_vertices() {
+ return tangential_complex_->number_of_vertices();
+ }
+
+ unsigned number_of_simplices() {
+ return num_inconsistencies_.num_simplices;
+ }
+
+ unsigned number_of_inconsistent_simplices() {
+ return num_inconsistencies_.num_inconsistent_simplices;
+ }
+
+ unsigned number_of_inconsistent_stars() {
+ return num_inconsistencies_.num_inconsistent_stars;
+ }
+
+ void fix_inconsistencies_using_perturbation(double max_perturb, double time_limit) {
+ tangential_complex_->fix_inconsistencies_using_perturbation(max_perturb, time_limit);
+ num_inconsistencies_ = tangential_complex_->number_of_inconsistent_simplices();
+ }
+
+ void create_simplex_tree(Simplex_tree<>* simplex_tree) {
+ int max_dim = tangential_complex_->create_complex<Gudhi::Simplex_tree<Gudhi::Simplex_tree_options_full_featured>>(*simplex_tree);
+ // FIXME
+ simplex_tree->set_dimension(max_dim);
+ simplex_tree->initialize_filtration();
+ }
+
+ private:
+ TC* tangential_complex_;
+ TC::Num_inconsistencies num_inconsistencies_;
+};
+
+} // namespace tangential_complex
+
+} // namespace Gudhi
+
+#endif // INCLUDE_TANGENTIAL_COMPLEX_INTERFACE_H_