MuonR4::SpacePoint Class Reference

The muon space point is the combination of two uncalibrated measurements one of them measures the eta and the other the phi coordinate. More...

#include <SpacePoint.h>

Collaboration diagram for MuonR4::SpacePoint:

Public Types
enum class	CovIdx : std::uint8_t { phiCov = Acts::toUnderlying(SeedingAux::ResidualIdx::nonBending) , etaCov = Acts::toUnderlying(SeedingAux::ResidualIdx::bending) , timeCov = Acts::toUnderlying(SeedingAux::ResidualIdx::time) }
using	Cov_t = std::array<double, 3>
	Abrivation of the covariance type.
using	SeedingAux = Acts::Experimental::detail::CompSpacePointAuxiliaries
	Enum to define the components of the covariance array.

Public Member Functions
	SpacePoint (const xAOD::UncalibratedMeasurement *primMeas, const xAOD::UncalibratedMeasurement *secondMeas=nullptr)
const Amg::Vector3D &	localPosition () const
const Amg::Vector3D &	sensorDirection () const
const Amg::Vector3D &	toNextSensor () const
const Amg::Vector3D &	planeNormal () const
	Returns the vector pointing out of the measurement plane.
double	time () const
	Returns the measurement's recorded time.
bool	isStraw () const
	Returns whether the measurement is a Mdt.
bool	hasTime () const
	Returns whether the measurement carries time information.
bool	measuresLoc0 () const
	Returns whether the measurement constains the non-bending direction.
bool	measuresLoc1 () const
	Returns whether the measurement constains the bending direction.
double	driftRadius () const
	: Returns the size of the drift radius
const Cov_t &	covariance () const
	Returns the covariance array.
void	setCovariance (Cov_t &&cov)
void	setDirection (const Amg::Vector3D &sensorDir, const Amg::Vector3D &toNextSensor)
	Setter for the direction of the measurement channel in the sector frame.
void	setPosition (const Amg::Vector3D &pos)
const xAOD::UncalibratedMeasurement *	primaryMeasurement () const
const xAOD::UncalibratedMeasurement *	secondaryMeasurement () const
const MuonGMR4::SpectrometerSector *	msSector () const
const MuonGMR4::Chamber *	chamber () const
	: Pointer to the associated chamber
xAOD::UncalibMeasType	type () const
bool	measuresPhi () const
	: Does the space point contain a phi measurement
bool	measuresEta () const
	: Does the space point contain an eta measurement
const Identifier &	identify () const
	: Identifier of the primary measurement
bool	operator== (const SpacePoint &other) const
	: Equality check by checking the prd pointers
void	setInstanceCounts (std::shared_ptr< unsigned > etaCounts, std::shared_ptr< unsigned > phiCounts)
	Set the number of space points built with the same eta / phi prd.
unsigned	nEtaInstanceCounts () const
	How many space points have been built in total with the same eta prd.
unsigned	nPhiInstanceCounts () const
	How many space points have been built in total with the same phi prd.
unsigned	dimension () const
	Is the space point a 1D or combined 2D measurement.

Private Member Functions
void	print (std::ostream &ostr) const

Private Attributes
const xAOD::UncalibratedMeasurement *	m_primaryMeas {nullptr}
const xAOD::UncalibratedMeasurement *	m_secondaryMeas {nullptr}
const MuonGMR4::Chamber *	m_chamber {xAOD::muonReadoutElement(m_primaryMeas)->chamber()}
const MuonGMR4::SpectrometerSector *	m_msSector {m_chamber->parent()}
bool	m_measEta {!m_msSector->idHelperSvc()->measuresPhi(identify())}
	Flag indicating that the measurement is an eta measurement.
Amg::Vector3D	m_pos {Amg::Vector3D::Zero()}
	Local position inside the msSector.
Amg::Vector3D	m_dir {Amg::Vector3D::Zero()}
	Local sensor direction.
Amg::Vector3D	m_toNext {Amg::Vector3D::Zero()}
	Direction to the next sensor.
Amg::Vector3D	m_normal {Amg::Vector3D::Zero()}
	Direction vector pointing outside the sensor plane.
Cov_t	m_measCovariance {Acts::filledArray<double, 3>(0.)}
	Measurement covariance.
std::shared_ptr< const unsigned >	m_etaInstances {std::make_shared<unsigned>(1)}
	In how many space points is the eta measurement used.
std::shared_ptr< const unsigned >	m_phiInstances {std::make_shared<unsigned>(1)}
	In how many space points is the phi measurement used.

Friends
std::ostream &	operator<< (std::ostream &ostr, const SpacePoint &sp)
	The print-out operator.

Detailed Description

The muon space point is the combination of two uncalibrated measurements one of them measures the eta and the other the phi coordinate.

In cases, without a complementary measurment the spacepoint just represents the single measurement and hence has a uncertainty into the other direction corresponding to the half-length of the measurement channel

Definition at line 24 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

Member Typedef Documentation

Cov_t

using MuonR4::SpacePoint::Cov_t = std::array<double, 3>

Abrivation of the covariance type.

Definition at line 27 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

SeedingAux

using MuonR4::SpacePoint::SeedingAux = Acts::Experimental::detail::CompSpacePointAuxiliaries

Enum to define the components of the covariance array.

Definition at line 29 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

Member Enumeration Documentation

CovIdx

enum class MuonR4::SpacePoint::CovIdx : std::uint8_t

strong

Enumerator
phiCov
etaCov
timeCov

Definition at line 30 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

                             : std::uint8_t {
                phiCov = Acts::toUnderlying(SeedingAux::ResidualIdx::nonBending),
                etaCov = Acts::toUnderlying(SeedingAux::ResidualIdx::bending),
                timeCov = Acts::toUnderlying(SeedingAux::ResidualIdx::time)
            };

Constructor & Destructor Documentation

SpacePoint()

SpacePoint::SpacePoint	(	const xAOD::UncalibratedMeasurement *	primMeas,
		const xAOD::UncalibratedMeasurement *	secondMeas = nullptr )

In case of 2D measurements like sTgc-pads or BI-RPC strips we can directly take the covariance from the measurement itself. To indicate that the space point measures both, eta & phi coordinate set the secondary measurement to be the primary one

Temporary hack to activate the measures phi flag for micromegas

Definition at line 32 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

                                                                          : 
        m_primaryMeas{primMeas},
        m_secondaryMeas{secondMeas} {
        if (primMeas->numDimensions() == 2) {
            m_secondaryMeas = m_primaryMeas;
        } 
        if (primMeas->type() == xAOD::UncalibMeasType::MMClusterType) {
            const auto* clust = static_cast<const xAOD::MMCluster*>(primMeas);
            if (clust->readoutElement()->stripLayer(clust->layerHash()).design().hasStereoAngle()) {
                m_secondaryMeas = m_primaryMeas;
            }
        }
    }

Member Function Documentation

chamber()

const MuonGMR4::Chamber * SpacePoint::chamber

(

)

const

: Pointer to the associated chamber

Definition at line 81 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

                                                     {
        return m_chamber;
    }

covariance()

const Cov_t & SpacePoint::covariance

(

)

const

Returns the covariance array.

Definition at line 61 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

{ return m_measCovariance; }    

dimension()

unsigned int SpacePoint::dimension

(

)

const

Is the space point a 1D or combined 2D measurement.

Definition at line 107 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

                                             { 
        return (secondaryMeasurement() != nullptr) + 1;
    }

driftRadius()

double SpacePoint::driftRadius

(

)

const

: Returns the size of the drift radius

Definition at line 54 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

                                         { 
        return m_primaryMeas->type() == xAOD::UncalibMeasType::MdtDriftCircleType ?  
               static_cast<const xAOD::MdtDriftCircle*>(m_primaryMeas)->driftRadius() : 0.;
    }

hasTime()

bool SpacePoint::hasTime

(

)

const

Returns whether the measurement carries time information.

Definition at line 63 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

{ return false; }

identify()

const Identifier & SpacePoint::identify

(

)

const

: Identifier of the primary measurement

Definition at line 97 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

                                                 {
        return xAOD::identify(m_primaryMeas);
    }

isStraw()

bool SpacePoint::isStraw

(

)

const

Returns whether the measurement is a Mdt.

Definition at line 62 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

{ return m_primaryMeas->type() == xAOD::UncalibMeasType::MdtDriftCircleType; }

localPosition()

const Amg::Vector3D & SpacePoint::localPosition

(

)

const

Definition at line 50 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

{ return m_pos; }

measuresEta()

bool SpacePoint::measuresEta

(

)

const

: Does the space point contain an eta measurement

Definition at line 94 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

                                       {
        return secondaryMeasurement() || m_measEta;
    }

measuresLoc0()

bool SpacePoint::measuresLoc0

(

)

const

Returns whether the measurement constains the non-bending direction.

Definition at line 64 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

{ return measuresPhi(); }

measuresLoc1()

bool SpacePoint::measuresLoc1

(

)

const

Returns whether the measurement constains the bending direction.

Definition at line 65 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

{ return measuresEta(); }    

measuresPhi()

bool SpacePoint::measuresPhi

(

)

const

: Does the space point contain a phi measurement

Definition at line 91 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

                                       {
        return secondaryMeasurement() || !m_measEta;
    }

msSector()

const MuonGMR4::SpectrometerSector * SpacePoint::msSector

(

)

const

Definition at line 84 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

                                                                 {
        return m_msSector;
    }

nEtaInstanceCounts()

unsigned int SpacePoint::nEtaInstanceCounts

(

)

const

How many space points have been built in total with the same eta prd.

Definition at line 105 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

{ return (*m_etaInstances); }

nPhiInstanceCounts()

unsigned int SpacePoint::nPhiInstanceCounts

(

)

const

How many space points have been built in total with the same phi prd.

Definition at line 106 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

{ return (*m_phiInstances); }

operator==()

bool MuonR4::SpacePoint::operator== ( const SpacePoint & other ) const

inline

: Equality check by checking the prd pointers

Definition at line 93 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

                                                           {
                return primaryMeasurement() == other.primaryMeasurement() &&
                       secondaryMeasurement() == other.secondaryMeasurement();
            }

planeNormal()

const Amg::Vector3D & SpacePoint::planeNormal

(

)

const

Returns the vector pointing out of the measurement plane.

Definition at line 53 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

{ return m_normal; }

primaryMeasurement()

const xAOD::UncalibratedMeasurement * SpacePoint::primaryMeasurement

(

)

const

Definition at line 75 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

                                                                            {
       return m_primaryMeas;
    }

print()

void SpacePoint::print ( std::ostream & ostr ) const

private

Definition at line 110 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

                                                 {
 
        ostr<<"Uncalibrated SP "<<msSector()->idHelperSvc()->toString(identify());        
        ostr<<" @ "<<Amg::toString(localPosition());
        if (type() == xAOD::UncalibMeasType::MdtDriftCircleType) {
            ostr<<", wire: "<<Amg::toString(sensorDirection())<<", drift R: "<<driftRadius();
        } else {
            ostr<<", (dir/toNext/planeNormal): "<<Amg::toString(sensorDirection())
                <<"/"<<Amg::toString(toNextSensor())<<"/"<<Amg::toString(planeNormal());
        }
        auto boolToStr = [](const bool B) -> std::string {
            return B ? "yay" : "nay";
        };
        if (hasTime()) {
            ostr<<", time: "<<time();
        }
        ostr<<", measures eta/phi/time: "<<boolToStr(measuresEta())
            <<"/"<<boolToStr(measuresPhi())<<"/"<<boolToStr(hasTime());
        ostr<<", covariance (eta/phi/time): ("<<m_measCovariance[Acts::toUnderlying(CovIdx::etaCov)]
             <<", "<<m_measCovariance[Acts::toUnderlying(CovIdx::phiCov)]
             <<", "<<m_measCovariance[Acts::toUnderlying(CovIdx::timeCov)]<<")"; 
    }

secondaryMeasurement()

const xAOD::UncalibratedMeasurement * SpacePoint::secondaryMeasurement

(

)

const

Definition at line 78 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

                                                                              {
       return m_secondaryMeas;
    }

sensorDirection()

const Amg::Vector3D & SpacePoint::sensorDirection

(

)

const

Definition at line 51 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

{ return m_dir; } 

setCovariance()

void SpacePoint::setCovariance

(

Cov_t &&

cov

)

Definition at line 66 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

{ m_measCovariance = std::move(cov); }    

setDirection()

void SpacePoint::setDirection	(	const Amg::Vector3D &	sensorDir,
		const Amg::Vector3D &	toNextSensor )

Setter for the direction of the measurement channel in the sector frame.

Parameters

sensorDir	Direction of the sensor
toNextSensor	Vector pointing to the next sensor inside the plane

Definition at line 67 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

                                                                   {
        m_dir = sensorDir;
        m_toNext = toNextSensor;
        m_normal = m_dir.cross(m_toNext).unit();
    }

setInstanceCounts()

void SpacePoint::setInstanceCounts	(	std::shared_ptr< unsigned >	etaCounts,
		std::shared_ptr< unsigned >	phiCounts )

Set the number of space points built with the same eta / phi prd.

Definition at line 100 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

                                                                              {
        updateInstanceCounts(m_etaInstances, std::move(etaCounts));
        updateInstanceCounts(m_phiInstances, std::move(phiCounts));
    }

setPosition()

void SpacePoint::setPosition

(

const Amg::Vector3D &

pos

)

Definition at line 73 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

{ m_pos = pos; }

time()

double SpacePoint::time

(

)

const

Returns the measurement's recorded time.

Definition at line 58 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

                                  {
        return 0.;
    }

toNextSensor()

const Amg::Vector3D & SpacePoint::toNextSensor

(

)

const

Definition at line 52 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

{ return m_toNext; }

type()

xAOD::UncalibMeasType SpacePoint::type

(

)

const

Definition at line 88 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx.

                                               {
        return primaryMeasurement()->type();
    }

Friends And Related Symbol Documentation

operator<<

std::ostream & operator<< ( std::ostream & ostr, const SpacePoint & sp )

friend

The print-out operator.

Definition at line 107 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

                                                                                  {
                    sp.print(ostr);
                    return ostr;
            }

Member Data Documentation

m_chamber

const MuonGMR4::Chamber* MuonR4::SpacePoint::m_chamber {xAOD::muonReadoutElement(m_primaryMeas)->chamber()}

private

Definition at line 116 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

{xAOD::muonReadoutElement(m_primaryMeas)->chamber()};

m_dir

Amg::Vector3D MuonR4::SpacePoint::m_dir {Amg::Vector3D::Zero()}

private

Local sensor direction.

Definition at line 123 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

{Amg::Vector3D::Zero()};

m_etaInstances

std::shared_ptr<const unsigned> MuonR4::SpacePoint::m_etaInstances {std::make_shared<unsigned>(1)}

private

In how many space points is the eta measurement used.

Definition at line 134 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

{std::make_shared<unsigned>(1)};

m_measCovariance

Cov_t MuonR4::SpacePoint::m_measCovariance {Acts::filledArray<double, 3>(0.)}

private

Measurement covariance.

The first index represents the uncertainty in the phi-direction, the second the uncerainty in the precision direction and the last component is the time covariance. By convention a pure 1D measurement has the strip half-length filled in the complementary component

Definition at line 132 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

{Acts::filledArray<double, 3>(0.)}; 

m_measEta

bool MuonR4::SpacePoint::m_measEta {!m_msSector->idHelperSvc()->measuresPhi(identify())}

private

Flag indicating that the measurement is an eta measurement.

Definition at line 119 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

{!m_msSector->idHelperSvc()->measuresPhi(identify())};

m_msSector

const MuonGMR4::SpectrometerSector* MuonR4::SpacePoint::m_msSector {m_chamber->parent()}

private

Definition at line 117 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

{m_chamber->parent()};

m_normal

Amg::Vector3D MuonR4::SpacePoint::m_normal {Amg::Vector3D::Zero()}

private

Direction vector pointing outside the sensor plane.

Definition at line 127 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

{Amg::Vector3D::Zero()};

m_phiInstances

std::shared_ptr<const unsigned> MuonR4::SpacePoint::m_phiInstances {std::make_shared<unsigned>(1)}

private

In how many space points is the phi measurement used.

Definition at line 136 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

{std::make_shared<unsigned>(1)};

m_pos

Amg::Vector3D MuonR4::SpacePoint::m_pos {Amg::Vector3D::Zero()}

private

Local position inside the msSector.

Definition at line 121 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

{Amg::Vector3D::Zero()};

m_primaryMeas

const xAOD::UncalibratedMeasurement* MuonR4::SpacePoint::m_primaryMeas {nullptr}

private

Definition at line 113 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

{nullptr};

m_secondaryMeas

const xAOD::UncalibratedMeasurement* MuonR4::SpacePoint::m_secondaryMeas {nullptr}

private

Definition at line 114 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

{nullptr};

m_toNext

Amg::Vector3D MuonR4::SpacePoint::m_toNext {Amg::Vector3D::Zero()}

private

Direction to the next sensor.

Definition at line 125 of file MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h.

{Amg::Vector3D::Zero()};

---

The documentation for this class was generated from the following files:

• MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/MuonSpacePoint/SpacePoint.h
• MuonSpectrometer/MuonPhaseII/Event/MuonSpacePoint/src/SpacePoint.cxx