diff options
author | vrouvrea <vrouvrea@636b058d-ea47-450e-bf9e-a15bfbe3eedb> | 2015-06-19 10:57:51 +0000 |
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committer | vrouvrea <vrouvrea@636b058d-ea47-450e-bf9e-a15bfbe3eedb> | 2015-06-19 10:57:51 +0000 |
commit | 5ade372f809008bf41410455836d07c5efb6bdb9 (patch) | |
tree | 7f21cbfc2e2639186faf00ff3a6b30110f3fc938 /src/Alpha_complex/example/Alpha_complex_from_off.cpp | |
parent | 2a3afe37fa9423890f4747373c955d7195ce8f72 (diff) |
File name changed
git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/alphashapes@629 636b058d-ea47-450e-bf9e-a15bfbe3eedb
Former-commit-id: 25f954a52cd71e769a3820751080761eb350891d
Diffstat (limited to 'src/Alpha_complex/example/Alpha_complex_from_off.cpp')
-rw-r--r-- | src/Alpha_complex/example/Alpha_complex_from_off.cpp | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/Alpha_complex/example/Alpha_complex_from_off.cpp b/src/Alpha_complex/example/Alpha_complex_from_off.cpp new file mode 100644 index 00000000..d129ebf7 --- /dev/null +++ b/src/Alpha_complex/example/Alpha_complex_from_off.cpp @@ -0,0 +1,66 @@ +/* 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) 2014 INRIA Saclay (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/>. + */ + +// to construct a Delaunay_triangulation from a OFF file +#include "gudhi/Delaunay_triangulation_off_io.h" +#include "gudhi/Alpha_complex.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string> + +void usage(char * const progName) { + std::cerr << "Usage: " << progName << " filename.off" << std::endl; + exit(-1); // ----- >> +} + +int main(int argc, char **argv) { + if (argc != 2) { + std::cerr << "Error: Number of arguments (" << argc << ") is not correct" << std::endl; + usage(argv[0]); + } + + std::string off_file_name(argv[1]); + + // ---------------------------------------------------------------------------- + // Init of an alpha complex from an OFF file + // ---------------------------------------------------------------------------- + Gudhi::alphacomplex::Alpha_complex<> alpha_complex_from_file(off_file_name); + + // ---------------------------------------------------------------------------- + // Display information about the alpha complex + // ---------------------------------------------------------------------------- + std::cout << "Alpha complex is of dimension " << alpha_complex_from_file.dimension() << + " - " << alpha_complex_from_file.num_simplices() << " simplices - " << + alpha_complex_from_file.num_vertices() << " vertices." << std::endl; + + std::cout << "Iterator on alpha complex simplices in the filtration order, with [filtration value]:" << std::endl; + for (auto f_simplex : alpha_complex_from_file.filtration_simplex_range()) { + std::cout << " ( "; + for (auto vertex : alpha_complex_from_file.simplex_vertex_range(f_simplex)) { + std::cout << vertex << " "; + } + std::cout << ") -> " << "[" << alpha_complex_from_file.filtration(f_simplex) << "] "; + std::cout << std::endl; + } + return 0; +}
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