/* 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): David Salinas
*
* Copyright (C) 2014 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 .
*/
#include
#include
#include
#include
#include
#include
#include
typedef Gudhi::skeleton_blocker::Skeleton_blocker_simple_traits Traits;
typedef Gudhi::skeleton_blocker::Skeleton_blocker_complex Complex;
typedef Complex::Vertex_handle Vertex_handle;
typedef Complex::Simplex Simplex;
int main(int argc, char *argv[]) {
std::vector 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(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;
}