InclusiveTrackFilterTool.h

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// -*- c++ -*-
/*
  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef INDETTRACKSYSTEMATICSTOOLS_INCLUSIVETRACKFILTERTOOL_H
#define INDETTRACKSYSTEMATICSTOOLS_INCLUSIVETRACKFILTERTOOL_H
 
#include "InDetTrackSystematicsTools/IInclusiveTrackFilterTool.h"
#include "AsgTools/AsgTool.h"
#include "AsgTools/ToolHandle.h"
#include "PATInterfaces/SystematicVariation.h"
#include "PATInterfaces/SystematicSet.h"
#include "xAODTracking/TrackParticleFwd.h"
#include "InDetTrackSystematicsTools/InDetTrackSystematicsTool.h"
#include "AsgTools/PropertyWrapper.h"
 
#include <string>
#include <TH2.h>
#include <TRandom3.h>
 
namespace InDet {
 
 
  class InclusiveTrackFilterTool
    : public virtual IInclusiveTrackFilterTool
    , public InDetTrackSystematicsTool
  {
    
    // create constructor for Athena
    ASG_TOOL_CLASS( InclusiveTrackFilterTool,
            InDet::IInclusiveTrackFilterTool )
 
  public:
    // create constructor for standalone Root
    InclusiveTrackFilterTool( const std::string& name );
 
    virtual ~InclusiveTrackFilterTool();
    
    //  static const InterfaceID& interfaceID();
    virtual StatusCode initialize() override;
 
    // right now this returns a bool; if we want to implement the ASG selection tool interface then this will need to change to a TAccept
    virtual bool accept( const xAOD::TrackParticle* ) const override;
 
    virtual bool isAffectedBySystematic( const CP::SystematicVariation& ) const override;
    virtual CP::SystematicSet affectingSystematics() const override;
    virtual CP::SystematicSet recommendedSystematics() const override;
    virtual StatusCode applySystematicVariation( const CP::SystematicSet& ) override;
 
    float getTrackUncertainty(const xAOD::TrackParticle*) const;
 
  private:
 
    // Property: random seed
    Gaudi::Property<int> m_seed{this, "Seed", 42, "Seed used to initialize the RNG"};
 
    // Property: parameter to artificially scale up/down the effect of the tool
    Gaudi::Property<float> m_trkEffSystScale{this, "trkEffSystScale", 1.0, "Option to scale the effect of the systematic (default 1)"};
 
    // Property: path to the root file containing the LRT efficiency histogram (note: uses PathResolver)
    Gaudi::Property<std::string> m_calibFileLRTEff{this, "calibFileLRTEff", "InDetTrackSystematicsTools/CalibData_24.0_2023-v00/LargeD0TrackingRecommendations_20230824.root", "File containing the efficiency histogram (expert only)"};
 
    // Property: name of the efficiency histogram in m_calibFileLRTEff
    Gaudi::Property<std::string> m_calibHistLRTEff{this, "calibHistLRTEff", "OneMinusRatioEfficiencyVSRadiusOfFirstHitEta_Nominal", "Name of the efficiency histogram (expert only)"};
 
 
    std::unique_ptr<TRandom3> m_rnd  = nullptr; 
    std::unique_ptr<TH2> m_trkLRTEff = nullptr; 
 
  }; // class InclusiveTrackFilterTool
 
} // namespace InDet
 
#endif