diff options
Diffstat (limited to 'src/GudhUI/utils/Rips_builder.h')
-rw-r--r-- | src/GudhUI/utils/Rips_builder.h | 99 |
1 files changed, 56 insertions, 43 deletions
diff --git a/src/GudhUI/utils/Rips_builder.h b/src/GudhUI/utils/Rips_builder.h index 9484f9ab..b22f4db6 100644 --- a/src/GudhUI/utils/Rips_builder.h +++ b/src/GudhUI/utils/Rips_builder.h @@ -1,56 +1,69 @@ -/* - * Rips_builder.h +/* This file is part of the Gudhi Library. The Gudhi library + * (Geometric Understanding in Higher Dimensions) is a generic C++ + * library for computational topology. * - * Created on: Sep 10, 2014 - * Author: dsalinas + * Author(s): David Salinas + * + * Copyright (C) 2014 INRIA Sophia Antipolis-Mediterranee (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/>. + * */ -#ifndef RIPS_BUILDER_H_ -#define RIPS_BUILDER_H_ +#ifndef UTILS_RIPS_BUILDER_H_ +#define UTILS_RIPS_BUILDER_H_ #include <boost/iterator/iterator_facade.hpp> -#include "utils/UI_utils.h" -#include "model/Complex_typedefs.h" #include <CGAL/Euclidean_distance.h> - #include <CGAL/Orthogonal_k_neighbor_search.h> #include <CGAL/Search_traits_d.h> -template<typename SkBlComplex> class Rips_builder{ -private: - SkBlComplex& complex_; -public: - - /** - * @brief Modify complex to be the Rips complex - * of its points with offset alpha. - */ - Rips_builder(SkBlComplex& complex,double alpha):complex_(complex){ - complex.keep_only_vertices(); - if (alpha<=0) return; - compute_edges(alpha); - } - -private: - - - double squared_eucl_distance(const Point& p1,const Point& p2) const{ - return Geometry_trait::Squared_distance_d()(p1,p2); - } - - void compute_edges(double alpha){ - auto vertices = complex_.vertex_range(); - for(auto p = vertices.begin(); p!= vertices.end(); ++p){ - std::cout << *p << " "; std::cout.flush(); - for (auto q = p; ++q != vertices.end(); /**/) - if (squared_eucl_distance(complex_.point(*p),complex_.point(*q)) < 4*alpha*alpha) - complex_.add_edge(*p,*q); - } - std::cout << std::endl; - } +#include "utils/UI_utils.h" +#include "model/Complex_typedefs.h" -}; +template<typename SkBlComplex> class Rips_builder { + private: + SkBlComplex& complex_; + public: + /** + * @brief Modify complex to be the Rips complex + * of its points with offset alpha. + */ + Rips_builder(SkBlComplex& complex, double alpha) : complex_(complex) { + complex.keep_only_vertices(); + if (alpha <= 0) return; + compute_edges(alpha); + } + + private: + double squared_eucl_distance(const Point& p1, const Point& p2) const { + return Geometry_trait::Squared_distance_d()(p1, p2); + } + + void compute_edges(double alpha) { + auto vertices = complex_.vertex_range(); + for (auto p = vertices.begin(); p != vertices.end(); ++p) { + std::cout << *p << " "; + std::cout.flush(); + for (auto q = p; ++q != vertices.end(); /**/) + if (squared_eucl_distance(complex_.point(*p), complex_.point(*q)) < 4 * alpha * alpha) + complex_.add_edge(*p, *q); + } + std::cout << std::endl; + } +}; -#endif /* RIPS_BUILDER_H_ */ +#endif // UTILS_RIPS_BUILDER_H_ |