Skeleton_blocker_off_io.h

 /*    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):       David Salinas
  *
  *    Copyright (C) 2014  INRIA Sophia Antipolis-Mediterranee (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/>.
  */
#ifndef SKELETON_BLOCKER_OFF_IO_H_
#define SKELETON_BLOCKER_OFF_IO_H_

#include "gudhi/Off_reader.h"

namespace Gudhi {

namespace skbl {

template<typename Complex>
class Skeleton_blocker_off_visitor_reader{
    Complex& complex_;
    typedef typename Complex::Vertex_handle Vertex_handle;
    typedef typename Complex::Point Point;

    const bool load_only_points_;

public:
    Skeleton_blocker_off_visitor_reader(Complex& complex,bool load_only_points = false):
        complex_(complex),
        load_only_points_(load_only_points){}


    void init(int dim,int num_vertices,int num_faces,int num_edges){
        //todo do an assert to check that this number are correctly read
        //todo reserve size for vector points
    }


    void point(const std::vector<double>& point){
        complex_.add_vertex(point);
    }

    void maximal_face(const std::vector<int>& face){
        if (!load_only_points_){
            for(size_t i = 0 ; i < face.size();++i)
                for(size_t j = i+1 ; j < face.size();++j){
                    complex_.add_edge(Vertex_handle(face[i]),Vertex_handle(face[j]));
                }
            }
    }

    void done(){
    }
};

template<typename Complex>
class Skeleton_blocker_off_reader{
public:
    Skeleton_blocker_off_reader(const std::string & name_file,Complex& read_complex,bool read_only_points = false):valid_(false){
        std::ifstream stream(name_file);
        if(stream.is_open()){
            Skeleton_blocker_off_visitor_reader<Complex> off_visitor(read_complex,read_only_points);
            Off_reader off_reader(stream);
            valid_ = off_reader.read(off_visitor);
        }
    }

    bool is_valid() const{
        return valid_;
    }

private:
    bool valid_;
};

}  // namespace skbl


}  // namespace Gudhi


#endif /* SKELETON_BLOCKER_OFF_IO_H_ */