Area2D.h

//-----------------------------------------------------------------------------
// $Id$
//-----------------------------------------------------------------------------
// Filename : TRGArea2D.h
// Section  : TRG
// Owner    : Yoshihito Iwasaki
// Email    : yoshihito.iwasaki@kek.jp
//-----------------------------------------------------------------------------
// Description : A class to represent a 2D area.
//-----------------------------------------------------------------------------
// $Log$
//-----------------------------------------------------------------------------
 
#ifndef TRGArea2D_FLAG_
#define TRGArea2D_FLAG_
 
#include "trg/trg/Point2D.h"
 
namespace Belle2 {
  class TRGArea2D {
 
  public:
    TRGArea2D(const TRGPoint2D& leftBottom,
              const TRGPoint2D& rightUpper);
 
    virtual ~TRGArea2D();
 
  public:
    bool inArea(const TRGPoint2D& x) const;
 
    void cross(const TRGPoint2D& x0,
               const TRGPoint2D& x1,
               unsigned& nFound,
               TRGPoint2D crossPoint[2]) const;
 
  private:
    TRGPoint2D _c[2];
  };
 
//-----------------------------------------------------------------------------
 
  inline
  bool
  TRGArea2D::inArea(const TRGPoint2D& x) const
  {
    if ((x.x() >= _c[0].x()) && (x.x() <= _c[1].x()))
      if ((x.y() >= _c[0].y()) && (x.y() <= _c[1].y()))
        return true;
    return false;
  }
 
} // namespace Belle2
 
#endif /* TRGArea2D_FLAG_ */