plane_cut_projector.h

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/*
 * Copyright (c) 2016:  G-CSC, Goethe University Frankfurt
 * Author: Sebastian Reiter
 * 
 * This file is part of UG4.
 * 
 * UG4 is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 3 (as published by the
 * Free Software Foundation) with the following additional attribution
 * requirements (according to LGPL/GPL v3 §7):
 * 
 * (1) The following notice must be displayed in the Appropriate Legal Notices
 * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (2) The following notice must be displayed at a prominent place in the
 * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (3) The following bibliography is recommended for citation and must be
 * preserved in all covered files:
 * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
 *   parallel geometric multigrid solver on hierarchically distributed grids.
 *   Computing and visualization in science 16, 4 (2013), 151-164"
 * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
 *   flexible software system for simulating pde based models on high performance
 *   computers. Computing and visualization in science 16, 4 (2013), 165-179"
 * 
 * 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 Lesser General Public License for more details.
 */
 
#ifndef __H__UG_plane_cut_projector
#define __H__UG_plane_cut_projector
 
#include "refinement_projector.h"
 
namespace ug{
 
 
class PlaneCutProjector : public RefinementProjector {
public:
  PlaneCutProjector () :
    m_p (0, 0, 0),
    m_n (0, 0, 1)
  {}
  
  PlaneCutProjector (const vector3& position,
            const vector3& normal) :
    m_p (position),
    m_n (normal)
  {}
 
  PlaneCutProjector (SPIGeometry3d geometry,
             const vector3& position,
             const vector3& normal) :
    RefinementProjector (geometry),
    m_p (position),
    m_n (normal)
  {}
 
  virtual ~PlaneCutProjector ()     {}
 
  void set_position (const vector3& position)   {m_p = position;}
  const vector3& position () const        {return m_p;}
 
  void set_normal (const vector3& normal)     {m_n = normal;}
  const vector3& normal () const          {return m_n;}
 
  virtual number new_vertex(Vertex* vrt, Edge* parent)
  {
    number t;
    vector3 v;
    vector3 dir;
    VecSubtract(dir, pos(parent->vertex(1)), pos(parent->vertex(0)));
    
    if(RayPlaneIntersection(v, t, pos(parent->vertex(0)), dir, m_p, m_n)) {
      set_pos(vrt, v);
    }
    else{
      RefinementProjector::new_vertex(vrt, parent);
    }
    return 1;
  }
 
private:
  friend class boost::serialization::access;
 
  template <class Archive>
  void serialize( Archive& ar, const unsigned int version)
  {
    ar & make_nvp("position", m_p);
    ar & make_nvp("normal", m_n);
    UG_EMPTY_BASE_CLASS_SERIALIZATION(PlaneCutProjector, RefinementProjector);
  }
 
  vector3 m_p;
  vector3 m_n;
};
 
}// end of namespace
 
#endif  //__H__UG_plane_cut_projector