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/* 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_heat_maps.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 heat map of diagrams provided as an input. The Gaussian kernels are weighted by the distance of a center from the diagonal.\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::cerr << "The fourth parameter is an integer, the standard deviation of a gaussian kernel expressed in a number of pixels \n";
std::cout << "The fifth parameter of this program is a dimension of persistence that will be used in creation of the persistence heat maps.";
std::cout << "If our input files contain persistence pairs of various dimension, as a fifth parameter of the procedure please provide the dimension of persistence you want to use.";
std::cout << "If in your file there are only birth-death pairs of the same dimension, set the first parameter to -1." << std::endl;
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] );
size_t stdiv = atof( argv[4] );
unsigned dimension = std::numeric_limits<unsigned>::max();
int dim = atoi( argv[5] );
if ( dim >= 0 )
{
dimension = (unsigned)dim;
}
//std::cout << "Parameters of the program : size_of_grid : " << size_of_grid << ", min_ : " << min_ << ", max_ : " << max_ << ", stdiv: " << stdiv << ", dim : " << dim << std::endl;
std::vector< const char* > filenames;
for ( int i = 6 ; i != argc ; ++i )
{
filenames.push_back( argv[i] );
}
std::cout << "Creating persistence heat maps...\n";
std::vector< std::vector<double> > filter = create_Gaussian_filter(stdiv,1);
for ( size_t i = 0 ; i != filenames.size() ; ++i )
{
std::cout << "Creating a heat map based on a file : " << filenames[i] << std::endl;
Persistence_heat_maps<distance_from_diagonal_scaling> l( filenames[i] , filter , false , size_of_grid , min_ , max_ , dimension );
std::stringstream ss;
ss << filenames[i] << ".mps";
l.print_to_file( ss.str().c_str() );
}
std::cout << "Done \n";
return 0;
}
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