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Diffstat (limited to 'src/Persistence_representations/utilities/persistence_landscapes_on_grid/create_landscapes_on_grid.cpp')
-rw-r--r-- | src/Persistence_representations/utilities/persistence_landscapes_on_grid/create_landscapes_on_grid.cpp | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/create_landscapes_on_grid.cpp b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/create_landscapes_on_grid.cpp new file mode 100644 index 00000000..a033362c --- /dev/null +++ b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/create_landscapes_on_grid.cpp @@ -0,0 +1,86 @@ +/* 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): Pawel Dlotko + * + * Copyright (C) 2015 INRIA (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/>. + */ + +#include <gudhi/Persistence_landscape_on_grid.h> + + + +using namespace Gudhi; +using namespace Gudhi::Persistence_representations; + +#include <iostream> +#include <sstream> + + +int main( int argc , char** argv ) +{ + std::cout << "This program creates persistence landscape on grid of diagrams provided as an input.\n"; + std::cout << "The first parameter of a program is an integer, a size of a grid.\n"; + std::cout << "The second and third parameters are min and max of the grid. If you want those numbers to be computed based on the data, set them both to -1 \n"; + std::cout << "The fourth parameter of the program is the dimension of persistence to be used to construct persistence landscape on a grid. If your file contains "; + std::cout << "the information about dimension of birth-death pairs, please provide here the dimension of intervals you want to use. If your input files consist only "; + std::cout << "of birth-death pairs, please set the fourth parameter to -1 \n"; + std::cout << "The remaining parameters are the names of files with persistence diagrams. \n"; + + if ( argc < 5 ) + { + std::cout << "Wrong parameter list, the program will now terminate \n"; + return 1; + } + + size_t size_of_grid = (size_t)atoi( argv[1] ); + double min_ = atof( argv[2] ); + double max_ = atof( argv[3] ); + int dim = atoi( argv[4] ); + unsigned dimension = std::numeric_limits<unsigned>::max(); + if ( dim >= 0 ) + { + dimension = (unsigned)dim; + } + + std::vector< const char* > filenames; + for ( int i = 5 ; i < argc ; ++i ) + { + filenames.push_back( argv[i] ); + } + + std::cout << "Creating persistence landscapes...\n"; + for ( size_t i = 0 ; i != filenames.size() ; ++i ) + { + std::cout << "Creating persistence landscape on a grid based on a file : " << filenames[i] << std::endl; + Persistence_landscape_on_grid l; + if ( (min_ != -1) || (max_ != -1) ) + { + l = Persistence_landscape_on_grid( filenames[i] , min_ , max_ , size_of_grid , dimension ); + } + else + { + //(min_ == -1) && (max_ == -1), in this case the program will find min_ and max_ based on the data. + l = Persistence_landscape_on_grid( filenames[i] , size_of_grid , dimension ); + } + std::stringstream ss; + ss << filenames[i] << ".g_land"; + l.print_to_file( ss.str().c_str() ); + } + std::cout << "Done \n"; + return 0; +} |