DriftLengthEstimator.h

/**************************************************************************
 * BASF2 (Belle Analysis Framework 2)                                     *
 * Copyright(C) 2016 - Belle II Collaboration                             *
 *                                                                        *
 * Author: The Belle II Collaboration                                     *
 * Contributors: Oliver Frost                                             *
 *                                                                        *
 * This software is provided "as is" without any warranty.                *
 **************************************************************************/
#pragma once
 
#include <string>
#include <cmath>
 
namespace Belle2 {
  class ModuleParamList;
}
 
namespace Belle2 {
  namespace TrackFindingCDC {
    class CDCFacet;
    class CDCRecoHit2D;
    class CDCRecoHit3D;
    class CDCSegment2D;
    class CDCSegment3D;
    class CDCTrack;
 
    struct DriftLengthEstimator {
 
      void exposeParameters(ModuleParamList* moduleParamList, const std::string& prefix);
 
      double updateDriftLength(CDCRecoHit2D& recoHit2D);
 
      double updateDriftLength(CDCRecoHit3D& recoHit3D, double tanLambda);
 
      void updateDriftLength(CDCFacet& facet);
 
      void updateDriftLength(CDCSegment2D& segment);
 
      void updateDriftLength(CDCSegment3D& segment, double tanLambda);
 
      void updateDriftLength(CDCTrack& track, double tanLambda);
 
      bool m_param_useAlphaInDriftLength = true;
 
      double m_param_tofMassScale = NAN;
    };
  }
}