elecPlot.hpp

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#pragma once 

/*   This file is part of rl-lib
 *
 *   Copyright (C) 2010,  Herve FREZZA-BUET
 *
 *   Author : Herve Frezza-Buet
 *
 *   Contributor :
 *
 *   This library is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public
 *   License (GPL) as published by the Free Software Foundation; either
 *   version 3 of the License, or any later version.
 *   
 *   This library 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 library; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 *   Contact : Herve.Frezza-Buet@supelec.fr
 *
 */

#include <string>
#include <elecPoint.hpp>
#include <iostream>
#include <iomanip>
#include <iterator>


namespace elec {
  namespace plot {
    class Figure {
    public:

      unsigned int frame_id;

      Figure(const std::string& title,
             const elec::Point& min, const elec::Point& max)
        : frame_id(0) {
        std::cout << title << std::endl
                  << min.x << ' ' << min.y << ' ' 
                  << max.x << ' ' << max.y << std::endl;
      }

      void begin_frame(const std::string& prefix,
                       const std::string& suffix) {
        std::cout << "filename" << std::endl
                  << prefix << '-' 
                  << std::setw(6) << std::setfill('0') << frame_id++
                  << '.' << suffix << std::endl;
      }

      void end_frame() {
        std::cout << "draw" << std::endl;
      }

      void set_view(double elev, double azim) {
        std::cout << "view" << std::endl
                  << elev << ' ' << azim << std::endl;
      }

      void __plot_focus(const elec::Point& pos) {
        std::cout << "focus" << std::endl
                  << pos.x << ' ' << pos.y << std::endl;
      }

      template<typename Iter>
      void __plot_particles(const Iter& begin, const Iter& end) {
        unsigned int nb_p = 0;
        unsigned int nb_e = 0;
        for(auto it = begin; it != end; ++it) 
          if((*it).q > 0)
            ++nb_p;
          else
            ++nb_e;

        if(nb_p > 0) {
          std::cout << "protons" << std::endl;
          for(auto it = begin; it != end; ++it) 
            if((*it).q > 0)
              std::cout << (*it).pos.x << ' ';
          std::cout << std::endl;
          for(auto it = begin; it != end; ++it) 
            if((*it).q > 0)
              std::cout << (*it).pos.y << ' ';
          std::cout << std::endl;
        }

        if(nb_e > 0) {
          std::cout  << "electrons" << std::endl;
          for(auto it = begin; it != end; ++it) 
            if((*it).q < 0)
              std::cout << (*it).pos.x << ' ';
          std::cout << std::endl;
          for(auto it = begin; it != end; ++it) 
            if((*it).q < 0)
              std::cout << (*it).pos.y << ' ';
          std::cout << std::endl;
        }
      }

      template<typename PosIter,typename ValIter>
      void __plot_field(const PosIter& pbegin, const PosIter& pend,
                        const ValIter& vbegin, const ValIter& vend,
                        double scale, double max_norm) {
        std::cout << "vector-field" << std::endl;
        for(auto it = pbegin; it != pend; ++it) 
          std::cout << (*it).x << ' ';
        std::cout << std::endl;
        for(auto it = pbegin; it != pend; ++it) 
          std::cout << (*it).y << ' ';
        std::cout << std::endl;

        double n2 = max_norm*max_norm;

        for(auto it = vbegin; it != vend; ++it) 
          if((*it)*(*it) < n2)
            std::cout << scale*(*it).x << ' ';
          else
            std::cout << 0 << ' ';
        std::cout << std::endl;
        for(auto it = vbegin; it != vend; ++it) 
          if((*it)*(*it) < n2)
            std::cout << scale*(*it).y << ' ';
          else
            std::cout << 0 << ' ';
        std::cout << std::endl;
      }

      template<typename PosIter,typename ValIter>
      void __plot_potential(const PosIter& pbegin, const PosIter& pend,
                            const ValIter& vbegin, const ValIter& vend,
                            double vmin, double vmax, unsigned int nb_contours) {
        std::cout << "scalar-field" << std::endl;
        std::cout << vmin << ' ' << vmax << ' ' << nb_contours << std::endl;
        for(auto it = pbegin; it != pend; ++it) 
          std::cout << (*it).x << ' ';
        std::cout << std::endl;
        for(auto it = pbegin; it != pend; ++it) 
          std::cout << (*it).y << ' ';
        std::cout << std::endl;
        for(auto it = vbegin; it != vend; ++it) 
          std::cout << *it << ' ';
        std::cout << std::endl;
      }
      
      ~Figure() {
        std::cout << "end" << std::endl;
      }
    };

    inline Figure figure(const std::string& title,
                         const elec::Point& min, const elec::Point& max) {
      return Figure(title,min,max);
    };
  }
}