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diff --git a/src/Tangential_complex/test/test_tangential_complex.cpp b/src/Tangential_complex/test/test_tangential_complex.cpp
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+/* This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
+ * See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details.
+ * Author(s): Clement Jamin
+ *
+ * Copyright (C) 2016 Inria
+ *
+ * Modification(s):
+ * - YYYY/MM Author: Description of the modification
+ */
+
+#define BOOST_TEST_DYN_LINK
+#define BOOST_TEST_MODULE Tangential_complex - test tangential complex
+#include <boost/test/unit_test.hpp>
+
+#include <gudhi/Tangential_complex.h>
+#include <gudhi/sparsify_point_set.h>
+
+#include <CGAL/Epick_d.h>
+#include <CGAL/Random.h>
+
+#include <array>
+#include <vector>
+
+namespace tc = Gudhi::tangential_complex;
+
+BOOST_AUTO_TEST_CASE(test_Spatial_tree_data_structure) {
+ typedef CGAL::Epick_d<CGAL::Dynamic_dimension_tag> Kernel;
+ typedef Kernel::Point_d Point;
+ typedef tc::Tangential_complex<
+ Kernel, CGAL::Dynamic_dimension_tag,
+ CGAL::Parallel_tag> TC;
+
+ const int INTRINSIC_DIM = 2;
+ const int AMBIENT_DIM = 3;
+ const int NUM_POINTS = 50;
+
+ Kernel k;
+
+ // Generate points on a 2-sphere
+ CGAL::Random_points_on_sphere_d<Point> generator(AMBIENT_DIM, 3.);
+ std::vector<Point> points;
+ points.reserve(NUM_POINTS);
+ for (int i = 0; i < NUM_POINTS; ++i)
+ points.push_back(*generator++);
+
+ // Compute the TC
+ TC tc(points, INTRINSIC_DIM, k);
+ tc.compute_tangential_complex();
+
+ // Try to fix inconsistencies. Give it 60 seconds to succeed
+ auto perturb_ret = tc.fix_inconsistencies_using_perturbation(0.01, 60);
+
+ BOOST_CHECK(perturb_ret.success);
+
+ // Export the TC into a Simplex_tree
+ Gudhi::Simplex_tree<> stree;
+ tc.create_complex(stree);
+}
+
+BOOST_AUTO_TEST_CASE(test_mini_tangential) {
+ typedef CGAL::Epick_d<CGAL::Dynamic_dimension_tag> Kernel;
+ typedef Kernel::Point_d Point;
+ typedef tc::Tangential_complex<Kernel, CGAL::Dynamic_dimension_tag, CGAL::Parallel_tag> TC;
+
+
+ const int INTRINSIC_DIM = 1;
+
+ // Generate points on a 2-sphere
+ std::vector<Point> points;
+ // [[0, 0], [1, 0], [0, 1], [1, 1]]
+ std::vector<double> point = {0.0, 0.0};
+ points.push_back(Point(point.size(), point.begin(), point.end()));
+ point = {1.0, 0.0};
+ points.push_back(Point(point.size(), point.begin(), point.end()));
+ point = {0.0, 1.0};
+ points.push_back(Point(point.size(), point.begin(), point.end()));
+ point = {1.0, 1.0};
+ points.push_back(Point(point.size(), point.begin(), point.end()));
+ std::cout << "points = " << points.size() << std::endl;
+ Kernel k;
+
+ // Compute the TC
+ TC tc(points, INTRINSIC_DIM, k);
+ tc.compute_tangential_complex();
+ TC::Num_inconsistencies num_inc = tc.number_of_inconsistent_simplices();
+ std::cout << "TC vertices = " << tc.number_of_vertices() << " - simplices = " << num_inc.num_simplices <<
+ " - inc simplices = " << num_inc.num_inconsistent_simplices <<
+ " - inc stars = " << num_inc.num_inconsistent_stars << std::endl;
+
+ BOOST_CHECK(tc.number_of_vertices() == 4);
+ BOOST_CHECK(num_inc.num_simplices == 4);
+ BOOST_CHECK(num_inc.num_inconsistent_simplices == 0);
+ BOOST_CHECK(num_inc.num_inconsistent_stars == 0);
+
+ // Export the TC into a Simplex_tree
+ Gudhi::Simplex_tree<> stree;
+ tc.create_complex(stree);
+ std::cout << "ST vertices = " << stree.num_vertices() << " - simplices = " << stree.num_simplices() << std::endl;
+
+ BOOST_CHECK(stree.num_vertices() == 4);
+ BOOST_CHECK(stree.num_simplices() == 6);
+
+ tc.fix_inconsistencies_using_perturbation(0.01, 30.0);
+
+ BOOST_CHECK(tc.number_of_vertices() == 4);
+ BOOST_CHECK(num_inc.num_simplices == 4);
+ BOOST_CHECK(num_inc.num_inconsistent_simplices == 0);
+ BOOST_CHECK(num_inc.num_inconsistent_stars == 0);
+
+ // Export the TC into a Simplex_tree
+ tc.create_complex(stree);
+ std::cout << "ST vertices = " << stree.num_vertices() << " - simplices = " << stree.num_simplices() << std::endl;
+
+ BOOST_CHECK(stree.num_vertices() == 4);
+ BOOST_CHECK(stree.num_simplices() == 6);
+}
+
+#ifdef GUDHI_DEBUG
+BOOST_AUTO_TEST_CASE(test_basic_example_throw) {
+ typedef CGAL::Epick_d<CGAL::Dynamic_dimension_tag> Kernel;
+ typedef Kernel::FT FT;
+ typedef Kernel::Point_d Point;
+ typedef Kernel::Vector_d Vector;
+ typedef tc::Tangential_complex<Kernel, CGAL::Dynamic_dimension_tag,CGAL::Parallel_tag> TC;
+
+ const int INTRINSIC_DIM = 2;
+ const int AMBIENT_DIM = 3;
+ const int NUM_POINTS = 1000;
+
+ Kernel k;
+
+ // Generate points on a 2-sphere
+ CGAL::Random_points_on_sphere_d<Point> generator(AMBIENT_DIM, 3.);
+ std::vector<Point> points;
+ points.reserve(NUM_POINTS);
+ for (int i = 0; i < NUM_POINTS; ++i)
+ points.push_back(*generator++);
+
+ // Compute the TC
+ TC tc(points, INTRINSIC_DIM, k);
+ tc.set_max_squared_edge_length(0.01);
+ std::cout << "test_basic_example_throw - set_max_squared_edge_length(0.01) to make GUDHI_CHECK fail" << std::endl;
+ BOOST_CHECK_THROW(tc.compute_tangential_complex(), std::invalid_argument);
+
+}
+#endif