Line2D.cc

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
#include <tracking/trackingUtilities/geometry/Line2D.h>
 
using namespace Belle2;
using namespace TrackingUtilities;
 
ROOT::Math::XYVector Line2D::intersection(const Line2D& line) const
{
 
  double determinant = VectorUtil::Cross(n12(), line.n12());
  ROOT::Math::XYVector result(-n0() * line.n2() + line.n0() * n2(), n0() * line.n1() - line.n0() * n1());
 
  result /= determinant;
  return result;
}