DivisiveMultiSeedFinder.h

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/*
  Copyright (C) 2002-2023 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef InDetMultipleVertexSeedFinder_DivisiveMultiSeedFinder_H
#define InDetMultipleVertexSeedFinder_DivisiveMultiSeedFinder_H
 
#include "AthenaBaseComps/AthAlgTool.h"
#include "GaudiKernel/ToolHandle.h"
#include "InDetRecToolInterfaces/IMultiPVSeedFinder.h"
#include "BeamSpotConditionsData/BeamSpotData.h"
 
namespace Trk
{
 class Track;
 class ITrackSelectorTool;
 class IExtrapolator;
  class IVertexSeedFinder;
}
 
namespace InDet
{
 class InDetTrackZ0SortingTool;
 class InDetTrackClusterCleaningTool;
 
 class DivisiveMultiSeedFinder final : public AthAlgTool, virtual public IMultiPVSeedFinder
 {
 
  public:
   
   virtual StatusCode initialize() override;
 
   DivisiveMultiSeedFinder(const std::string& t, const std::string& n, const IInterface*  p);
 
   ~DivisiveMultiSeedFinder();
 
   virtual std::vector<std::vector<const Trk::Track*> > seeds(
       const std::vector<const Trk::Track*>& tracks) const override;
 
   virtual std::vector<std::vector<const Trk::TrackParameters*> > seeds(
       const std::vector<const xAOD::TrackParticle*>& tracks) const override;
 
  private:
 
// tuning parameters
   double m_sepDistance;
      
   unsigned int m_nRemaining; 
 
   bool m_ignoreBeamSpot;
 
   // std::vector<int> m_z0sort(std::vector<const xAOD::TrackParticle*>& perigeeList,xAOD::Vertex  * beamVtx) const;
 
   //  std::pair<std::vector<const Trk::TrackParameters *>, 
   //std::vector<const xAOD::TrackParticle *> > m_clusterAndOutliers(std::vector<const xAOD::TrackParticle *> tracks_to_clean, xAOD::Vertex * beamposition) const;
 
//track filter 
  ToolHandle<Trk::ITrackSelectorTool> m_trkFilter; 
  
//sorting tool 
  ToolHandle<InDetTrackZ0SortingTool> m_sortingTool;
 
//cluster cleaning tool 
  ToolHandle<InDetTrackClusterCleaningTool> m_cleaningTool;
  
//beam spot finder
  SG::ReadCondHandleKey<InDet::BeamSpotData> m_beamSpotKey { this, "BeamSpotKey", "BeamSpotData", "SG key for beam spot" };
 
  ToolHandle<Trk::IExtrapolator> m_extrapolator; //<! Extrapolator tool
   
   //vertex seed finder
   ToolHandle<Trk::IVertexSeedFinder> m_vtxSeedFinder;
 
 };
 
}//end of namespace definitions
 
#endif