StereoHitFinder.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/trackingUtilities/findlets/base/Findlet.h>
 
#include <tracking/trackFindingCDC/findlets/minimal/RLTaggedWireHitCreator.h>
#include <tracking/trackFindingCDC/findlets/minimal/TrackSZFitter.h>
 
#include <tracking/trackFindingCDC/collectors/matchers/StereoHitTrackQuadTreeMatcher.h>
#include <tracking/trackingUtilities/collectors/selectors/SingleMatchSelector.h>
#include <tracking/trackingUtilities/collectors/selectors/FilterSelector.h>
#include <tracking/trackFindingCDC/collectors/adders/StereoHitTrackAdder.h>
 
#include <tracking/trackFindingCDC/filters/stereoHits/BaseStereoHitFilter.h>
#include <tracking/trackingUtilities/filters/base/ChooseableFilter.dcl.h>
#include <tracking/trackFindingCDC/filters/stereoHits/StereoHitFilterFactory.h>
#include <tracking/trackingUtilities/utilities/HitComperator.h>
 
#include <tracking/trackFindingCDC/hough/z0_tanLambda/HitZ0TanLambdaLegendre.h>
 
#include <vector>
 
namespace Belle2 {
  namespace TrackingUtilities {
    class CDCTrack;
    class CDCWireHit;
  }
  namespace TrackFindingCDC {
 
    // Guard to prevent repeated instantiations
    // extern template class TrackingUtilities::Chooseable<BaseStereoHitFilter>;
    // extern template class TrackingUtilities::ChooseableFilter<StereoHitFilterFactory>;

    class StereoHitFinder : public TrackingUtilities::Findlet<TrackingUtilities::CDCWireHit&, TrackingUtilities::CDCTrack&> {
 
    private:
      using Super = TrackingUtilities::Findlet<TrackingUtilities::CDCWireHit&, TrackingUtilities::CDCTrack&>;
 
    public:
      StereoHitFinder();

      std::string getDescription() final;

      void beginEvent() final;

      void exposeParameters(ModuleParamList* moduleParamList, const std::string& prefix) final;

      void apply(std::vector<TrackingUtilities::CDCWireHit>& inputWireHits, std::vector<TrackingUtilities::CDCTrack>& tracks) final;
 
    private:
      // Findlets
      RLTaggedWireHitCreator m_rlWireHitCreator;
      StereoHitTrackQuadTreeMatcher<HitZ0TanLambdaLegendre> m_matcher;
      TrackingUtilities::FilterSelector<TrackingUtilities::CDCTrack, TrackingUtilities::CDCRLWireHit, TrackingUtilities::ChooseableFilter<StereoHitFilterFactory>>
          m_filterSelector;
      TrackingUtilities::SingleMatchSelector<TrackingUtilities::CDCTrack, TrackingUtilities::CDCRLWireHit, TrackingUtilities::HitComperator>
      m_singleMatchSelector;
      StereoHitTrackAdder m_adder;
      TrackSZFitter m_szFitter;
 
      // Object pools
      std::vector<TrackingUtilities::CDCRLWireHit> m_rlTaggedWireHits;
      std::vector<TrackingUtilities::WeightedRelation<TrackingUtilities::CDCTrack, const TrackingUtilities::CDCRLWireHit>> m_relations;
    };
  }
}