1 files changed, 86 insertions, 0 deletions
diff --git a/src/Gudhi_stat/utilities/persistence_landscapes_on_grid/create_landscapes_on_grid.cpp b/src/Gudhi_stat/utilities/persistence_landscapes_on_grid/create_landscapes_on_grid.cpp
new file mode 100644
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+++ b/src/Gudhi_stat/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;
+}