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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): Vincent Rouvreau
*
* Copyright (C) 2014 INRIA Sophia Antipolis-Méditerranée (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 <iostream>
#include <fstream>
#include <ctime>
//#include "gudhi/graph_simplicial_complex.h"
#include "gudhi/Witness_complex1.h"
using namespace Gudhi;
typedef std::vector< Vertex_handle > typeVectorVertex;
typedef std::vector< std::vector <double> > Point_Vector;
//typedef std::pair<typeVectorVertex, Filtration_value> typeSimplex;
//typedef std::pair< Simplex_tree<>::Simplex_handle, bool > typePairSimplexBool;
/**
* \brief Customized version of read_points
* which takes into account a possible nbP first line
*
*/
inline void
read_points_cust ( std::string file_name , std::vector< std::vector< double > > & points)
{
std::ifstream in_file (file_name.c_str(),std::ios::in);
if(!in_file.is_open())
{
std::cerr << "Unable to open file " << file_name << std::endl;
return;
}
std::string line;
double x;
while( getline ( in_file , line ) )
{
std::vector< double > point;
std::istringstream iss( line );
while(iss >> x) { point.push_back(x); }
if (point.size() != 1)
points.push_back(point);
}
in_file.close();
}
int main (int argc, char * const argv[])
{
if (argc != 3)
{
std::cerr << "Usage: " << argv[0]
<< " path_to_point_file nbL \n";
return 0;
}
std::string file_name = argv[1];
int nbL = atoi(argv[2]);
clock_t start, end;
//Construct the Simplex Tree
Witness_complex<> witnessComplex;
std::cout << "Let the carnage begin!\n";
start = clock();
Point_Vector point_vector;
read_points_cust(file_name, point_vector);
witnessComplex.witness_complex_from_file(point_vector, nbL);
end = clock();
std::cout << "Howdy world! The process took "
<< (double)(end-start)/CLOCKS_PER_SEC << " s. \n";
}
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