Bottleneck_distance/bottleneck_distance.cpp

/* This file is part of the Gudhi Library. The Gudhi library

* (Geometric Understanding in Higher Dimensions) is a generic C++

* library for computational topology.

*

* Authors: Francois Godi, small modifications by Pawel Dlotko

*

* Copyright (C) 2015 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 <http://www.gnu.org/licenses/>.

*/

#include <gudhi/Bottleneck.h>

#include <gudhi/reader_utils.h>

#include <iostream>

#include <vector>

#include <utility> // for pair

#include <string>

#include <limits> // for numeric_limits

int main(int argc, char** argv) {

if (argc < 3) {

std::cout << "To run this program please provide as an input two files with persistence diagrams. Each file" <<

" should contain a birth-death pair per line. Third, optional parameter is an error bound on the bottleneck" <<

" distance (set by default to the smallest positive double value). If you set the error bound to 0, be" <<

" aware this version is exact but expensive. The program will now terminate \n";

return -1;

}

std::vector<std::pair<double, double>> diag1 = Gudhi::read_persistence_intervals_in_dimension(argv[1]);

std::vector<std::pair<double, double>> diag2 = Gudhi::read_persistence_intervals_in_dimension(argv[2]);

double tolerance = std::numeric_limits<double>::min();

if (argc == 4) {

tolerance = atof(argv[3]);

}

std::cout << "The distance between the diagrams is : " << b << ". The tolerance is : " << tolerance << std::endl;

return 0;

}

GUDHI Version 2.3.0 - C++ library for Topological Data Analysis (TDA) and Higher Dimensional Geometry Understanding. - Copyright : GPL v3 | Generated on Tue Sep 4 2018 14:32:59 for GUDHI by Doxygen 1.8.13 |