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persistence_landscapes_on_grid/create_landscapes_on_grid.cpp
/* 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.
* Author(s): Pawel Dlotko
*
* Copyright (C) 2016 Inria
*
* Modification(s):
* - YYYY/MM Author: Description of the modification
*/
#include <gudhi/Persistence_landscape_on_grid.h>
#include <iostream>
#include <sstream>
#include <limits>
#include <vector>
using Persistence_landscape_on_grid = Gudhi::Persistence_representations::Persistence_landscape_on_grid;
int main(int argc, char** argv) {
std::clog << "This program creates persistence landscapes on grid files (*.g_land) of persistence diagrams files "
<< "(*.pers) provided as an input.\n"
<< "The first parameter of a program is an integer, a size of a grid.\n"
<< "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"
<< "The fourth parameter of this program is a dimension of persistence that will be used in creation of "
<< "the persistence heat maps."
<< "If your input files contains persistence pairs of various dimension, as a fourth parameter of the "
<< "procedure please provide the dimension of persistence you want to use."
<< "If in your files there are only birth-death pairs of the same dimension, set the fourth parameter to "
<< "-1.\n"
<< "The remaining parameters are the names of files with persistence diagrams. \n";
if (argc < 6) {
std::clog << "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]);
}
for (size_t i = 0; i != filenames.size(); ++i) {
std::clog << "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());
}
return 0;
}
Gudhi::Persistence_representations::Persistence_landscape_on_grid
A class implementing persistence landscapes by approximating them on a collection of grid points.
Definition Persistence_landscape_on_grid.h:59
Gudhi::Persistence_representations::Persistence_landscape_on_grid::print_to_file
void print_to_file(const char *filename) const
Definition Persistence_landscape_on_grid.h:1174