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diff --git a/src/Skeleton_blocker/example/Skeleton_blocker_from_simplices.cpp b/src/Skeleton_blocker/example/Skeleton_blocker_from_simplices.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): David Salinas
+ *
+ * Copyright (C) 2014 Inria
+ *
+ * Modification(s):
+ * - YYYY/MM Author: Description of the modification
+ */
+
+#include <gudhi/Skeleton_blocker.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string>
+#include <fstream>
+#include <sstream>
+#include <vector>
+
+typedef Gudhi::skeleton_blocker::Skeleton_blocker_simple_traits Traits;
+typedef Gudhi::skeleton_blocker::Skeleton_blocker_complex<Traits> Complex;
+typedef Complex::Vertex_handle Vertex_handle;
+typedef Complex::Simplex Simplex;
+
+int main(int argc, char *argv[]) {
+ std::vector<Simplex> simplices;
+
+ // add 4 triangles of a tetrahedron 0123
+ simplices.push_back(Simplex(Vertex_handle(0), Vertex_handle(1), Vertex_handle(2)));
+ simplices.push_back(Simplex(Vertex_handle(1), Vertex_handle(2), Vertex_handle(3)));
+ simplices.push_back(Simplex(Vertex_handle(3), Vertex_handle(0), Vertex_handle(2)));
+ simplices.push_back(Simplex(Vertex_handle(3), Vertex_handle(0), Vertex_handle(1)));
+
+ // get complex from top faces
+ Complex complex(Gudhi::skeleton_blocker::make_complex_from_top_faces<Complex>(simplices.begin(), simplices.end()));
+
+
+ std::cout << "Simplices:" << std::endl;
+ for (const Simplex & s : complex.complex_simplex_range())
+ std::cout << s << " ";
+ std::cout << std::endl;
+
+ // One blocker as simplex 0123 is not in the complex but all its proper faces are.
+ std::cout << "Blockers: " << complex.blockers_to_string() << std::endl;
+
+ // now build a complex from its full list of simplices
+ simplices.clear();
+ simplices.push_back(Simplex(Vertex_handle(0)));
+ simplices.push_back(Simplex(Vertex_handle(1)));
+ simplices.push_back(Simplex(Vertex_handle(2)));
+ simplices.push_back(Simplex(Vertex_handle(0), Vertex_handle(1)));
+ simplices.push_back(Simplex(Vertex_handle(1), Vertex_handle(2)));
+ simplices.push_back(Simplex(Vertex_handle(2), Vertex_handle(0)));
+ complex = Complex(simplices.begin(), simplices.end());
+
+ std::cout << "Simplices:" << std::endl;
+ for (const Simplex & s : complex.complex_simplex_range())
+ std::cout << s << " ";
+ std::cout << std::endl;
+
+ // One blocker as simplex 012 is not in the complex but all its proper faces are.
+ std::cout << "Blockers: " << complex.blockers_to_string() << std::endl;
+
+ return EXIT_SUCCESS;
+}