CDCAxialStereoFusion.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
 
#include <tracking/trackFindingCDC/eventdata/utils/DriftLengthEstimator.h>
 
#include <tracking/trackingUtilities/geometry/HelixParameters.h>
 
namespace Belle2 {
  namespace TrackingUtilities {
    class CDCTrajectory3D;
    class CDCTrajectory2D;
    class CDCSegmentPair;
    class CDCSegment3D;
    class CDCSegment2D;
  }
  namespace TrackFindingCDC {

    class CDCAxialStereoFusion {
 
    public:
      explicit CDCAxialStereoFusion(bool reestimateDriftLength = true)
        : m_reestimateDriftLength(reestimateDriftLength)
      {
      }
 
    public:
      void reconstructFuseTrajectories(const TrackingUtilities::CDCSegmentPair& segmentPair);

      void fusePreliminary(const TrackingUtilities::CDCSegmentPair& segmentPair);

      TrackingUtilities::CDCTrajectory3D reconstructFuseTrajectories(const TrackingUtilities::CDCSegment2D& fromSegment2D,
          const TrackingUtilities::CDCSegment2D& toSegment2D);

      TrackingUtilities::CDCTrajectory3D fusePreliminary(const TrackingUtilities::CDCSegment2D& fromSegment2D,
                                                         const TrackingUtilities::CDCSegment2D& toSegment2D);

      TrackingUtilities::CDCTrajectory3D reconstructFuseTrajectories(const TrackingUtilities::CDCSegment2D& fromSegment2D,
          const TrackingUtilities::CDCSegment2D& toSegment2D,
          const TrackingUtilities::CDCTrajectory3D& preliminaryTrajectory3D);
 
    public:
      TrackingUtilities::PerigeeHelixAmbiguity calcAmbiguity(const TrackingUtilities::CDCSegment3D& segment3D,
                                                             const TrackingUtilities::CDCTrajectory2D& trajectory2D);
 
 
    private:
      bool m_reestimateDriftLength;

      DriftLengthEstimator m_driftLengthEstimator;
    };
  }
}