StripSpacePointFormationToolBase.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef ACTSTRK_DATAPREPARATION_STRIPSPACEPOINTFORMATIONTOOLBASE_H
#define ACTSTRK_DATAPREPARATION_STRIPSPACEPOINTFORMATIONTOOLBASE_H
 
#include "AthenaBaseComps/AthAlgTool.h"
#include "ActsToolInterfaces/IStripSpacePointFormationTool.h"
#include "StripInformationHelper.h"
#include "InDetReadoutGeometry/SiDetectorElementCollection.h"
#include "SiSpacePointFormation/SiElementPropertiesTable.h"
#include "xAODInDetMeasurement/StripClusterContainer.h"
#include "xAODInDetMeasurement/SpacePointContainer.h"
#include "xAODInDetMeasurement/SpacePointAuxContainer.h"
 
#include <string>
 
class SCT_ID;
 
namespace ActsTrk {

 
    class StripSpacePointFormationToolBase : public extends<AthAlgTool, ActsTrk::IStripSpacePointFormationTool> {
    public:

        using base_class::base_class;
        virtual ~StripSpacePointFormationToolBase() = default;
        virtual StatusCode initialize() override;


        virtual StatusCode produceSpacePoints(const EventContext& ctx,
                        const xAOD::StripClusterContainer& clusterContainer,
                        const InDet::SiElementPropertiesTable& properties,
                        const InDetDD::SiDetectorElementCollection& elements,
                        const Amg::Vector3D& beamSpotVertex,
                        std::vector<StripSP>& spacePoints,
                        std::vector<StripSP>& overlapSpacePoints,
                        bool processOverlaps,
                        const std::vector<IdentifierHash>& hashesToProcess,
                        const ContainerAccessor<xAOD::StripCluster, IdentifierHash, 1>& stripAccessor ) const override;
 
    protected:

        virtual StatusCode makeStripSpacePoint(std::vector<StripSP>& collection,
                                               const StripInformationHelper& firstInfo,
                                               const StripInformationHelper& secondInfo,
                                               const Amg::Vector3D& beamSpotVertex,
                                               bool isEndcap,
                                               double limit,
                                               double slimit) const = 0;

        static StripSP makeStripSP(const Eigen::Matrix<double, 3, 1>& globalPosition,
                                   const StripInformationHelper& firstInfo,
                                   const StripInformationHelper& secondInfo,
                                   bool isEndcap);


        const SCT_ID* m_stripId{};


        Gaudi::Property< bool > m_allClusters{this, "AllClusters", false, "Process all clusters without limits."};
        Gaudi::Property<bool> m_isITk {this, "isITk", true, "True if running in ITk"};


        Gaudi::Property< float > m_stripLengthTolerance{this, "StripLengthTolerance", 0.01};
        Gaudi::Property< float > m_stripGapParameter{this, "StripGapParameter", 0.0015, "Recommend 0.001 - 0.0015 for ITK geometry"};
 
    private:


        StatusCode
      fillStripSpacePoints(const std::array<const InDetDD::SiDetectorElement*,nNeighbours>& neighbourElements,
                   const std::array<std::vector<std::pair<const xAOD::StripCluster*, size_t>>,nNeighbours>& neighbourClusters,
                   const std::array<double, 14>& overlapExtents,
                   const Amg::Vector3D& beamSpotVertex,
                   std::vector<StripSP>& spacePoints,
                   std::vector<StripSP>& overlapSpacePoints ) const;
 
        void updateRange(const InDetDD::SiDetectorElement* element1,
                         const InDetDD::SiDetectorElement* element2,
                         double& stripLengthGapTolerance, double& min, double& max) const;
 
        double offset(const InDetDD::SiDetectorElement* element1,
                      const InDetDD::SiDetectorElement* element2,
                      double& stripLengthGapTolerance) const;
 
        void correctPolarRange(const InDetDD::SiDetectorElement* element,
                               double& min, double& max,
                               size_t& minStrip, size_t& maxStrip) const;
 
        std::pair<Amg::Vector3D, Amg::Vector3D > getStripEnds(const xAOD::StripCluster* cluster,
                                                              const InDetDD::SiDetectorElement* element,
                                                              size_t& stripIndex) const;



        ToolHandle<ISiLorentzAngleTool> m_lorentzAngleTool{this, "LorentzAngleTool", "",
      "Tool to retreive Lorentz angle of SCT"};



        Gaudi::Property< float > m_overlapLimitOpposite{this, "OverlapLimitOpposite", 2.8, "Overlap limit for opposite-neighbour."};
        Gaudi::Property< float > m_overlapLimitPhi{this, "OverlapLimitPhi", 5.64, "Overlap limit for phi-neighbours."};
        Gaudi::Property< float > m_overlapLimitEtaMin{this, "OverlapLimitEtaMin", 1.68, "Low overlap limit for eta-neighbours."};
        Gaudi::Property< float > m_overlapLimitEtaMax{this, "OverlapLimitEtaMax", 3.0, "High overlap limit for eta-neighbours."};
        Gaudi::Property< bool > m_useSCTLayerDep_OverlapCuts{this,"useSCTLayerDep_OverlapCuts", true};
 
  };
 
}
 
#endif