text: /// @file   contiguity.hpp
  /// @author Enrico Fraccaroli
  /// @date   Jan 09 2017
  /// @copyright
  /// Copyright (c) 2017 Enrico Fraccaroli <enrico.fraccaroli@gmail.com>
  /// Permission is hereby granted, free of charge, to any person obtaining a
  /// copy of this software and associated documentation files (the "Software"),
  /// to deal in the Software without restriction, including without limitation
  /// the rights to use, copy, modify, merge, publish, distribute, sublicense,
  /// and/or sell copies of the Software, and to permit persons to whom the
  /// Software is furnished to do so, subject to the following conditions:
  ///     The above copyright notice and this permission notice shall be included
  ///     in all copies or substantial portions of the Software.
  /// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  /// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  /// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  /// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  /// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  /// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  /// DEALINGS IN THE SOFTWARE.
  
  #pragma once
  
  #include <string>
  #include <memory>
  
  class Zone;
  
  class Channel;
  
  class Contiguity
  {
  public:
      std::shared_ptr<Zone> zone1;
      std::shared_ptr<Zone> zone2;
      std::shared_ptr<Channel> channel;
      double conductivity;
      double deploymentCost;
  
      Contiguity();
  
      Contiguity(std::shared_ptr<Zone> _zone1,
                 std::shared_ptr<Zone> _zone2,
                 std::shared_ptr<Channel> _channel,
                 double _conductivity,
                 double _deploymentCost);
  
      ~Contiguity();
  
      static std::string getHeader();
  
      std::string toString(bool for_milp = false) const;
  };
  