cuboid2D.h

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/*  This file is part of the OpenLB library
 *
 *  Copyright (C) 2007, 2014 Mathias J. Krause
 *  E-mail contact: info@openlb.net
 *  The most recent release of OpenLB can be downloaded at
 *  <http://www.openlb.net/>
 *
 *  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 2
 *  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, write to the Free
 *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA  02110-1301, USA.
*/
 
#ifndef CUBOID_2D_H
#define CUBOID_2D_H
 
#include <vector>
#include <math.h>
 
#include "io/ostreamManager.h"
#include "core/vector.h"
#include "core/olbDebug.h"
#include "core/blockStructure.h"
 
// All OpenLB code is contained in this namespace.
namespace olb {
 
 
template<typename T>
class Cuboid2D {
private:
  T   _globPosX, _globPosY;
  T   _delta;
  int _nX, _nY;
  size_t _weight;
 
  mutable OstreamManager clout;
 
public:
  Cuboid2D(T globPosX, T globPosY, T delta, int nX, int nY);
  Cuboid2D(Vector<T,2> origin, T delta, Vector<int,2> extend);
  Cuboid2D(Cuboid2D<T> const& rhs, int overlap=0);
  Cuboid2D& operator=(Cuboid2D const& rhs);
  void init(T globPosX, T globPosY, T delta, int nX, int nY);
  T get_globPosX() const;
  T get_globPosY() const;
  Vector<T,2> const getOrigin() const;
  T getDeltaR() const;
  int getNx() const;
  int getNy() const;
  Vector<int,2> const getExtent() const;
 
  T getPhysVolume() const;
  size_t getLatticeVolume() const;
  T getPhysPerimeter() const;
  int getLatticePerimeter() const;
  void print() const;
 
  void getPhysR(T physR[2], const int latticeR[2]) const;
  void getPhysR(T physR[2], const int& iX, const int& iY) const;
  void getPhysR(T physR[3], LatticeR<2> latticeR) const;
 
  void getLatticeR(int latticeR[2], const T physR[2]) const;
  void getLatticeR(int latticeR[2], const Vector<T,2>& physR) const;
 
  void getFloorLatticeR(const std::vector<T>& physR, std::vector<int>& latticeR) const
  {
    getFloorLatticeR(&latticeR[0], &physR[0]);
  }
 
  void getFloorLatticeR(int latticeR[2], const T physR[2]) const
  {
    latticeR[0] = (int)util::floor( (physR[0] - _globPosX)/_delta);
    latticeR[1] = (int)util::floor( (physR[1] - _globPosY)/_delta);
  }
 
  size_t getWeight() const;
  void setWeight(size_t fullCells);
 
  bool checkPoint(T globX, T globY, int overlap = 0) const;
  bool checkPoint(Vector<T,2>& globXY, int overlap = 0) const;
  // TODO: adapt to use only sum operation (cf. #204)
  [[deprecated]] bool checkPoint(T globX, T globY, int &locX, int &locY, int overlap = 0) const;
  bool checkInters(T globX0, T globX1, T globY0, T globY1, int overlap = 0) const;
  bool checkInters(T globX, T globY, int overlap = 0) const;
  bool checkInters(T globX0, T globX1, T globY0, T globY1,
                   int &locX0, int &locX1, int &locY0, int &locY1,
                   int overlap = 0) const;
  void divide(int p, int q, std::vector<Cuboid2D<T> > &childrenC) const;
  void divide(int p, std::vector<Cuboid2D<T> > &childrenC) const;
 
  void resize(int X, int Y, int nX, int nY);
 
};
 
}  // namespace olb
 
#endif