SurfaceIntegral.hpp

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// Copyright (C) 2010-2011 von Karman Institute for Fluid Dynamics, Belgium
//
// This software is distributed under the terms of the
// GNU Lesser General Public License version 3 (LGPLv3).
// See doc/lgpl.txt and doc/gpl.txt for the license text.

#ifndef cf3_UFEM_SurfaceIntegral_hpp
#define cf3_UFEM_SurfaceIntegral_hpp

#include "solver/History.hpp"

#include "solver/actions/Proto/DirichletBC.hpp"
#include "solver/actions/Proto/ProtoAction.hpp"


#include "LibUFEM.hpp"

namespace cf3 {
  namespace math { namespace LSS { class System; } }
  namespace mesh { class Region; }
namespace UFEM {

class UFEM_API SurfaceIntegral : public solver::actions::Proto::ProtoAction
{
public:

  SurfaceIntegral ( const std::string& name );
  
  virtual ~SurfaceIntegral();

  static std::string type_name () { return "SurfaceIntegral"; }
  
  void set_field(const std::string& variable_name, const std::string& tag);
  
  void signal_set_field(common::SignalArgs& args);
  void signature_set_field(common::SignalArgs& args);
  
  virtual void execute();
  
  const RealVector& result()
  {
    return m_integral_value;
  }
private:
  void trigger_result();

  std::string m_variable_name;
  
  RealVector m_integral_value;
  
  Handle<solver::History> m_history;
  bool m_changing_result;
};

} // UFEM
} // cf3


#endif // cf3_UFEM_SurfaceIntegral_hpp