CDCRobustSZFitter.h

/**************************************************************************
 * 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.                  *
 **************************************************************************/
#pragma once
 
namespace Belle2 {
 
  namespace TrackingUtilities {
    class CDCTrajectorySZ;
  }
  namespace TrackFindingCDC {
    class CDCSZObservations;

    class CDCRobustSZFitter {
 
    public:
      TrackingUtilities::CDCTrajectorySZ fitUsingSimplifiedTheilSen(const CDCSZObservations& szObservations) const;

      TrackingUtilities::CDCTrajectorySZ fitTheilSen(const CDCSZObservations& szObservations) const;

      TrackingUtilities::CDCTrajectorySZ fitWeightedTheilSen(const CDCSZObservations& szObservations) const;
 
 
    private:
      double getMedianZ0(const CDCSZObservations& szObservations, double tanLambda) const;
    };
  }
}