MuonSpacePoint.h

Go to the documentation of this file.

/*
   Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
#ifndef MUONSPACEPOINT_MUONSPACEPOINT_H
#define MUONSPACEPOINT_MUONSPACEPOINT_H
 
#include "MuonReadoutGeometryR4/MuonChamber.h"
#include "xAODMeasurementBase/UncalibratedMeasurement.h"
#include "xAODMuonPrepData/UtilFunctions.h"
#include "CxxUtils/CachedUniquePtr.h"
namespace MuonR4 {
    class MuonSpacePoint {
        public:
            /*** @brief: Constructor of the SpacePoint
             *   @param gctx: Geometry context needed to derive the local positions
             *   @param primaryMeas: Primary measurement of the spacepoint by convention that shall be the eta one
             *                       if both measurements are available
             *   @param secondaryMeas: The complementary phi measurement if availbe
            */
            MuonSpacePoint(const ActsGeometryContext& gctx,
                           const xAOD::UncalibratedMeasurement* primMeas,
                           const xAOD::UncalibratedMeasurement* secondMeas = nullptr);
            
            /*** @brief: Pointer to the primary measurement */
            const xAOD::UncalibratedMeasurement* primaryMeasurement() const;
            /*** @brief: Pointer to the secondary measurement */
            const xAOD::UncalibratedMeasurement* secondaryMeasurement() const;
            /*** @brief: Pointer to the associated muon chamber */
            const MuonGMR4::MuonChamber* muonChamber() const;
            /*** @brief: Position of the space point inside the chamber */
            const Amg::Vector3D& positionInChamber() const;
            bool measuresPhi() const;
            bool measuresEta() const;
            const Identifier& identify() const;
            double driftRadius() const;
            Amg::Vector2D uncertainty() const;
            const AmgSymMatrix(2)& covariance() const; 
            bool operator==(const MuonSpacePoint& other) const {
                return primaryMeasurement() == other.primaryMeasurement() &&
                       secondaryMeasurement() == other.secondaryMeasurement();
            }
        private:
            const xAOD::UncalibratedMeasurement* m_primaryMeas{nullptr};
            const xAOD::UncalibratedMeasurement* m_secondaryMeas{nullptr};
 
            Identifier m_id{Identifier::value_type{m_primaryMeas->identifier()}};
            const MuonGMR4::MuonChamber* m_chamber{xAOD::readoutElement(m_primaryMeas)->getChamber()};
 
            Amg::Vector3D m_pos{Amg::Vector3D::Zero()};
            AmgSymMatrix(2) m_measCovariance{AmgSymMatrix(2)::Identity()}; 
            double m_driftR{0.};
    };
 
}
 
 
#endif