diff options
Diffstat (limited to 'src/Bottleneck_distance/utilities/bottleneck_distance.cpp')
-rw-r--r-- | src/Bottleneck_distance/utilities/bottleneck_distance.cpp | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/Bottleneck_distance/utilities/bottleneck_distance.cpp b/src/Bottleneck_distance/utilities/bottleneck_distance.cpp new file mode 100644 index 00000000..d88a8a0b --- /dev/null +++ b/src/Bottleneck_distance/utilities/bottleneck_distance.cpp @@ -0,0 +1,38 @@ +/* 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. + * Authors: Francois Godi, small modifications by Pawel Dlotko + * + * Copyright (C) 2015 Inria + * + * Modification(s): + * - YYYY/MM Author: Description of the modification + */ + +#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]); + } + double b = Gudhi::persistence_diagram::bottleneck_distance(diag1, diag2, tolerance); + std::cout << "The distance between the diagrams is : " << b << ". The tolerance is : " << tolerance << std::endl; + + return 0; +} |