Muon::MdtDriftCircleOnTrack Class Reference

This class represents the corrected MDT measurements, where the corrections include the effects of wire sag etc. More...

#include <MdtDriftCircleOnTrack.h>

Inheritance diagram for Muon::MdtDriftCircleOnTrack:

Collaboration diagram for Muon::MdtDriftCircleOnTrack:

Public Member Functions
	MdtDriftCircleOnTrack ()=default
	Default ctor - for use by POOL only. More...
	MdtDriftCircleOnTrack (const MdtDriftCircleOnTrack &)
MdtDriftCircleOnTrack &	operator= (const MdtDriftCircleOnTrack &)
	MdtDriftCircleOnTrack (MdtDriftCircleOnTrack &&)=default
MdtDriftCircleOnTrack &	operator= (MdtDriftCircleOnTrack &&)=default
	MdtDriftCircleOnTrack (const MdtPrepData *RIO, Trk::LocalParameters &&locPos, Amg::MatrixX &&errDriftRadius, const double driftTime, const Trk::DriftCircleStatus status, const Amg::Vector3D &globDir, const double positionAlongWire, const MuonDriftCircleErrorStrategy &errorStrategy)
	Constructor for both non-sagged and sagged wire (default is non-sagged, since saggedSurface=0). More...
	MdtDriftCircleOnTrack (const MdtPrepData *RIO, Trk::LocalParameters &&locPos, Amg::MatrixX &&errDriftRadius, const double driftTime, const Trk::DriftCircleStatus status, const double positionAlongWire, const MuonDriftCircleErrorStrategy &errorStrategy)
	Constructor without global direction for both non-sagged and sagged wire (default is non-sagged, since saggedSurface=0). More...
	MdtDriftCircleOnTrack (const ElementLinkToIDC_MDT_Container &RIO, Trk::LocalParameters &&locPos, Amg::MatrixX &&errDriftRadius, const Identifier &id, const MuonGM::MdtReadoutElement *detEl, const double driftTime, const Trk::DriftCircleStatus status, const double positionAlongWire, const double localAngle, const MuonDriftCircleErrorStrategy &errorStrategy)
virtual	~MdtDriftCircleOnTrack ()=default
	Destructor: More...
Trk::DriftCircleSide	side () const
	Returns the side on which the drift radius is wrt to the track. More...
Trk::DriftCircleStatus	status () const
	Returns the status of the drift radius calibration. More...
virtual MdtDriftCircleOnTrack *	clone () const override final
	Pseudo-constructor, needed to avoid excessive RTTI. More...
virtual const MdtPrepData *	prepRawData () const override final
	Returns the PrepRawData used to create this corrected measurement. More...
const ElementLinkToIDC_MDT_Container &	prepRawDataLink () const
IdentifierHash	collectionHash () const
	Returns the hashID of the PRD collection. More...
virtual IdentifierHash	idDE () const override final
	Returns an invalid hash. More...
virtual const MuonGM::MdtReadoutElement *	detectorElement () const override final
	Returns the detector element, assoicated with the PRD of this class. More...
virtual const Trk::StraightLineSurface &	associatedSurface () const override final
	Returns the surface on which this measurement was taken. More...
virtual const Amg::Vector3D &	globalPosition () const override final
	Returns the global Position. More...
virtual bool	rioType (Trk::RIO_OnTrackType::Type type) const override final
	Method checking the Rio On Track type. More...
double	driftRadius () const
	Returns the value of the drift radius. More...
double	driftTime () const
	Returns the value of the drift time used to obtain the drift radius. More...
double	positionAlongWire () const
	Returns the position along the wire, as determined by the extrapolation used when creating this Trk::RIO_OnTrack. More...
double	localAngle () const
	Returns the local angle, as determined by the extrapolation used when creating this Trk::RIO_OnTrack. More...
const MuonDriftCircleErrorStrategy &	errorStrategy () const
	Get information about the creation strategy used by Muon::MdtDriftCircleOnTrackCreator when making this object. More...
virtual MsgStream &	dump (MsgStream &stream) const override final
	Dumps information about the PRD. More...
virtual std::ostream &	dump (std::ostream &stream) const override final
	Dumps information about the PRD. More...
std::unique_ptr< RIO_OnTrack >	uniqueClone () const
	NVI clone returning unique_ptr. More...
virtual bool	type (MeasurementBaseType::Type type) const override final
	Extended method checking the type. More...
Identifier	identify () const
	return the identifier -extends MeasurementBase More...
const LocalParameters &	localParameters () const
	Interface method to get the LocalParameters. More...
const Amg::MatrixX &	localCovariance () const
	Interface method to get the localError. More...

Static Public Member Functions
static std::size_t	numberOfInstantiations ()

Static Public Attributes
static std::atomic_size_t	s_numberOfInstantiations

Protected Attributes
Identifier	m_identifier {}
	Identifier of the RIO_OnTrack (comes from the associated Trk::PrepRawData) More...
LocalParameters	m_localParams
Amg::MatrixX	m_localCovariance

Private Member Functions
virtual void	setLocalParameters (const Trk::LocalParameters &locPos)
	Sets the local parameters. More...
virtual void	setValues (const Trk::TrkDetElementBase *, const Trk::PrepRawData *) override final
	Sets the DetElement and Trk::PrepRawData pointers after reading from disk. More...
void	setGlobalPosition (Amg::Vector3D &&loc3Dframe) const
	Uses the passed loc3Dframe to calculate and set the global coord of this hit. More...
void	setErrorStrategy (const MuonDriftCircleErrorStrategy &strategy)

Private Attributes
Trk::DriftCircleStatus	m_status {Trk::DriftCircleStatus::UNDECIDED}
	information on the status of the Mdt measurement - see Trk::DriftCircleStatus for definitions More...
ElementLinkToIDC_MDT_Container	m_rio {}
	the pointer to the MdtPrepData object (mutable because it might need to be recreated when reading tracks) More...
CxxUtils::CachedUniquePtr< Amg::Vector3D >	m_globalPosition {}
	global position of the measurement. More...
double	m_localAngle {0.}
	This angle is the position of the point of closest approach in cylindrical coordinates, and is needed to construct the global position. More...
double	m_positionAlongWire {0.}
	This is the position of the point of closest approach, in the local z coord (i.e. More...
double	m_driftTime {0.}
	This is the drift time used to obtain the drift radius. More...
MuonDriftCircleErrorStrategy	m_errorStrategy {}
	Records information about the 'strategy' used by Muon::MdtDriftCircleOnTrackCreator to make this object. More...
const MuonGM::MdtReadoutElement *	m_detEl {nullptr}

Friends
class	Trk::ITrkEventCnvTool
class	Muon::MuonEventCnvTool
class	Muon::MdtDriftCircleOnTrackCreator

Detailed Description

This class represents the corrected MDT measurements, where the corrections include the effects of wire sag etc.

Definition at line 37 of file MdtDriftCircleOnTrack.h.

Constructor & Destructor Documentation

MdtDriftCircleOnTrack() [1/6]

Muon::MdtDriftCircleOnTrack::MdtDriftCircleOnTrack ( )

default

Default ctor - for use by POOL only.

Do not use yourself!

MdtDriftCircleOnTrack() [2/6]

Muon::MdtDriftCircleOnTrack::MdtDriftCircleOnTrack

(

const MdtDriftCircleOnTrack &

other

)

Definition at line 64 of file MdtDriftCircleOnTrack.cxx.

                                                                               :
    Trk::RIO_OnTrack{ other },
    m_status{other.m_status},
    m_rio{other.m_rio},
    m_localAngle{other.m_localAngle},
    m_positionAlongWire{other.m_positionAlongWire},
    m_driftTime{other.m_driftTime},
    m_errorStrategy{other.m_errorStrategy},
    m_detEl{other.m_detEl} {
}

MdtDriftCircleOnTrack() [3/6]

Muon::MdtDriftCircleOnTrack::MdtDriftCircleOnTrack ( MdtDriftCircleOnTrack &&  )

default

MdtDriftCircleOnTrack() [4/6]

Muon::MdtDriftCircleOnTrack::MdtDriftCircleOnTrack	(	const MdtPrepData *	RIO,
		Trk::LocalParameters &&	locPos,
		Amg::MatrixX &&	errDriftRadius,
		const double	driftTime,
		const Trk::DriftCircleStatus	status,
		const Amg::Vector3D &	globDir,
		const double	positionAlongWire,
		const MuonDriftCircleErrorStrategy &	errorStrategy
	)

Constructor for both non-sagged and sagged wire (default is non-sagged, since saggedSurface=0).

Using the constructor implies the sign solution of the MDT is resolved.

The identifier hash, det element pointer etc are taken from RIO (the MdtPrepData pointer) so it is vital that this pointer is not zero.

Parameters

[in]	RIO	pointer to parent MdtPrepData used to create this RIO_OnTrack
[in]	locPos	local position (i.e. drift radius) of the measurement. This drift radius includes all corrections
[in]	errDriftRadius	the Amg::MatrixX (should be 1d, and contains the error on the drift radius measurement)
[in]	driftTime	drift time used to obtain the drift radius
[in]	status	status of drift circle. See Trk::DriftCircleStatus for definitions.
[in]	globDir	the predicted/extrapolated track direction (used to calculate global position)
[in]	positionAlongWire	this is the extrapolated position along the wire. i.e. it is NOT a measurement, and so should not be included in the Amg::MatrixX
[in]	saggedSurface	pointer to a Trk::StraightLineSurface created at the sagged position of the wire. It is not mandatory (i.e. if nothing is passed, or a zero pointer then the non-sagged wire is used). If something is passed, this object will own it (i.e. it will be deleted by this object)
[in]	creationParameters	A bitword containing information about the construction of the ROT. See m_rotCreationParameters for details.

scaling the direction with drift radius

Definition at line 16 of file MdtDriftCircleOnTrack.cxx.

                                                                                                :
  Trk::RIO_OnTrack{std::move(locPos), std::move(errDriftRadius), RIO->identify()},
  m_status{status},
  m_positionAlongWire{positionAlongWire},
  m_driftTime{driftTime},
  m_errorStrategy{errorStrategy} {
 
    assert(m_status!=Trk::UNDECIDED); // use of this constructor implies that the side is decided
 
    m_rio.setElement(RIO);
    m_globalPosition.store(std::make_unique<Amg::Vector3D>(associatedSurface().localToGlobal(m_localParams, predictedTrackDirection, positionAlongWire)));
 
    Amg::Vector3D loc_gDirection = predictedTrackDirection;
 
    if(driftRadius() > std::numeric_limits<float>::epsilon()) {
        // Set loc_gDirection's perpendicular distance equal to driftRadius
        Amg::setPerp(loc_gDirection, std::abs(driftRadius()));
        const double ratio = loc_gDirection.x() / std::abs(driftRadius());
        const double calc_angle = std::abs(ratio) >= 1. ?  M_PI * (ratio < 0.) : std::acos(ratio);
        m_localAngle = (loc_gDirection.y()<0.) ? 2*M_PI - calc_angle : calc_angle;
    }
}

MdtDriftCircleOnTrack() [5/6]

Muon::MdtDriftCircleOnTrack::MdtDriftCircleOnTrack	(	const MdtPrepData *	RIO,
		Trk::LocalParameters &&	locPos,
		Amg::MatrixX &&	errDriftRadius,
		const double	driftTime,
		const Trk::DriftCircleStatus	status,
		const double	positionAlongWire,
		const MuonDriftCircleErrorStrategy &	errorStrategy
	)

Constructor without global direction for both non-sagged and sagged wire (default is non-sagged, since saggedSurface=0).

This necessarily implies that the DriftCircleStatus is UNDECIDED, since without the GlobalDirection it cannot be worked out. In order to have a fully defined MdtDriftCircleOnTrack it is necessary to use the complete constructor (above)

The identifier hash, det element pointer etc are taken from RIO (the MdtPrepData pointer) so it is vital that this pointer is not zero.

Parameters

[in]	RIO	pointer to parent MdtPrepData used to create this RIO_OnTrack
[in]	locPos	local position (i.e. drift radius) of the measurement. This drift radius includes all corrections
[in]	errDriftRadius	the Amg::MatrixX (should be 1d, and contains the error on the drift radius measurement)
[in]	driftTime	drift time used to obtain the drift radius
[in]	status	status of drift circle. See Trk::DriftCircleStatus for definitions.
[in]	positionAlongWire	this is the extrapolated position along the wire. i.e. it is NOT a measurement, and so should not be included in the Amg::MatrixX
[in]	saggedSurface	pointer to a Trk::StraightLineSurface created at the sagged position of the wire. It is not mandatory (i.e. if nothing is passed, or a zero pointer then the non-sagged wire is used). If something is passed, this object will own it (i.e. it will be deleted by this object)
[in]	creationParameters	A bitword containing information about the construction of the ROT. See m_rotCreationParameters for details.

Definition at line 48 of file MdtDriftCircleOnTrack.cxx.

                                                                                                :
    Trk::RIO_OnTrack{std::move(locPos), std::move(errDriftRadius), RIO->identify()},
    m_status{status},
    m_positionAlongWire{positionAlongWire},
    m_driftTime{driftTime},
    m_errorStrategy{errorStrategy} {
    assert(m_status!=Trk::DECIDED); // use of this constructor implies that the side is not decided
    m_rio.setElement(RIO);
}

MdtDriftCircleOnTrack() [6/6]

Muon::MdtDriftCircleOnTrack::MdtDriftCircleOnTrack	(	const ElementLinkToIDC_MDT_Container &	RIO,
		Trk::LocalParameters &&	locPos,
		Amg::MatrixX &&	errDriftRadius,
		const Identifier &	id,
		const MuonGM::MdtReadoutElement *	detEl,
		const double	driftTime,
		const Trk::DriftCircleStatus	status,
		const double	positionAlongWire,
		const double	localAngle,
		const MuonDriftCircleErrorStrategy &	errorStrategy
	)

Definition at line 74 of file MdtDriftCircleOnTrack.cxx.

                                                                                               :
    Trk::RIO_OnTrack{std::move(locPos), std::move(errDriftRadius), id},
    m_status{status},
    m_rio{RIO},
    m_localAngle{localAngle},
    m_positionAlongWire{positionAlongWire},
    m_driftTime{driftTime},
    m_errorStrategy{errorStrategy},
    m_detEl{detEl} {}

~MdtDriftCircleOnTrack()

virtual Muon::MdtDriftCircleOnTrack::~MdtDriftCircleOnTrack ( )

virtualdefault

Destructor:

Member Function Documentation

associatedSurface()

const Trk::StraightLineSurface & Muon::MdtDriftCircleOnTrack::associatedSurface ( ) const

inlinefinaloverridevirtual

Returns the surface on which this measurement was taken.

• If hasSaggedSurface()==false, then the surface will be that of the matching Detector Element
• If hasSaggedSurface()==true, then the surface will be a special surface, representing the sagged position of the wire at the coords of this measurement.

Implements Trk::RIO_OnTrack.

Definition at line 271 of file MdtDriftCircleOnTrack.h.

                                                                                    {
    return detectorElement()->surface(identify());
}

clone()

MdtDriftCircleOnTrack * Muon::MdtDriftCircleOnTrack::clone ( ) const

inlinefinaloverridevirtual

Pseudo-constructor, needed to avoid excessive RTTI.

Implements Trk::RIO_OnTrack.

Definition at line 256 of file MdtDriftCircleOnTrack.h.

{ return new MdtDriftCircleOnTrack(*this); }

collectionHash()

IdentifierHash Muon::MdtDriftCircleOnTrack::collectionHash ( ) const

inline

Returns the hashID of the PRD collection.

Definition at line 264 of file MdtDriftCircleOnTrack.h.

                                                                  {
    return prepRawData()->collectionHash();
}

detectorElement()

const MuonGM::MdtReadoutElement * Muon::MdtDriftCircleOnTrack::detectorElement ( ) const

inlinefinaloverridevirtual

Returns the detector element, assoicated with the PRD of this class.

Implements Trk::RIO_OnTrack.

Definition at line 268 of file MdtDriftCircleOnTrack.h.

                                                                                   {
    return prepRawData() ? prepRawData()->detectorElement() : m_detEl;
}

driftRadius()

double Muon::MdtDriftCircleOnTrack::driftRadius ( ) const

inline

Returns the value of the drift radius.

Obviously to use this method you need to cast to a MdtDriftCircleOnTrack if you have a pointer or reference to the base class (Trk::RIO_OnTrack). An alternative is to use:

localParameters().get(Trk::driftRadius) 

Warning

This method assumes that the MdtDriftCircleOnTrack has been filled correctly. There are no checks!

Definition at line 277 of file MdtDriftCircleOnTrack.h.

                                                       {
    return localParameters().get(Trk::driftRadius);
}

driftTime()

double Muon::MdtDriftCircleOnTrack::driftTime ( ) const

inline

Returns the value of the drift time used to obtain the drift radius.

Obviously to use this method you need to cast to a MdtDriftCircleOnTrack if you have a pointer or reference to the base class (Trk::RIO_OnTrack).

Definition at line 280 of file MdtDriftCircleOnTrack.h.

{ return m_driftTime; }

dump() [1/2]

MsgStream & Muon::MdtDriftCircleOnTrack::dump ( MsgStream &  stream ) const

finaloverridevirtual

Dumps information about the PRD.

Reimplemented from Trk::RIO_OnTrack.

Definition at line 130 of file MdtDriftCircleOnTrack.cxx.

{
    stream << MSG::INFO<<"MdtDriftCircleOnTrack {"<<std::endl;
    Trk::RIO_OnTrack::dump(stream);
    stream << "DriftTime: "<<m_driftTime<<std::endl;
    stream << "Status: "<<m_status<<std::endl;
    stream << "Global position (x,y,z) = ";
    stream << Amg::toString(globalPosition(),2)<<std::endl;
 
    stream << "Position along wire: "<<positionAlongWire()<<", \tlocal angle="<<localAngle()<<std::endl;
    stream << "Creation strategy: "<<m_errorStrategy;
    stream<<"}"<<endmsg;
    return stream;
}

dump() [2/2]

std::ostream & Muon::MdtDriftCircleOnTrack::dump ( std::ostream &  stream ) const

finaloverridevirtual

Dumps information about the PRD.

Reimplemented from Trk::RIO_OnTrack.

Definition at line 145 of file MdtDriftCircleOnTrack.cxx.

{
    stream << "MdtDriftCircleOnTrack {"<<std::endl;
    Trk::RIO_OnTrack::dump(stream);
    stream << "DriftTime: "<<m_driftTime<<std::endl;
    stream << "Status: "<<m_status<<std::endl;
 
    stream << "Position along wire: "<<positionAlongWire()<<", \tlocal angle="<<localAngle()<<std::endl;
    // stream << "Creation strategy: "<<m_errorStrategy; //FIXME!
    stream<<"}"<<std::endl;
    return stream;
}

errorStrategy()

const MuonDriftCircleErrorStrategy & Muon::MdtDriftCircleOnTrack::errorStrategy ( ) const

inline

Get information about the creation strategy used by Muon::MdtDriftCircleOnTrackCreator when making this object.

Definition at line 283 of file MdtDriftCircleOnTrack.h.

                                                                                      {
    return m_errorStrategy;
}

globalPosition()

const Amg::Vector3D & Muon::MdtDriftCircleOnTrack::globalPosition ( ) const

finaloverridevirtual

Returns the global Position.

Be aware that this is calculated from the predicted position along the tube, and the drift radius. i.e. it is partly inferred from other data, and so is not a 'true' measurement.

Implements Trk::RIO_OnTrack.

Definition at line 108 of file MdtDriftCircleOnTrack.cxx.

                                                               {
    if (!m_globalPosition) {
        if (side()==Trk::NONE) {
            // side not defined, so we cannot determine the global position better than the position along the wire
            Amg::Vector3D  loc3Dframe = m_positionAlongWire * Amg::Vector3D::UnitZ();
            setGlobalPosition(std::move(loc3Dframe));
        } else {
            // get global position where track and drift radius intersect.
            double x = driftRadius()*std::sin(m_localAngle);
            double y = driftRadius()*std::cos(m_localAngle);
            Amg::Vector3D loc3Dframe(x, y, m_positionAlongWire);
            setGlobalPosition(std::move(loc3Dframe));
        }
    }
    return *m_globalPosition;
}

idDE()

virtual IdentifierHash Muon::MdtDriftCircleOnTrack::idDE ( ) const

inlinefinaloverridevirtual

Returns an invalid hash.

Todo:

Remove

Implements Trk::RIO_OnTrack.

Definition at line 149 of file MdtDriftCircleOnTrack.h.

{ return IdentifierHash(); }

identify()

Identifier Trk::RIO_OnTrack::identify ( ) const

inlineinherited

return the identifier -extends MeasurementBase

Definition at line 152 of file RIO_OnTrack.h.

  { return m_identifier; }

localAngle()

double Muon::MdtDriftCircleOnTrack::localAngle ( ) const

inline

Returns the local angle, as determined by the extrapolation used when creating this Trk::RIO_OnTrack.

Definition at line 282 of file MdtDriftCircleOnTrack.h.

{ return m_localAngle; }

localCovariance()

const Amg::MatrixX & Trk::MeasurementBase::localCovariance ( ) const

inlineinherited

Interface method to get the localError.

Definition at line 138 of file MeasurementBase.h.

{
  return m_localCovariance;
}

localParameters()

const Trk::LocalParameters & Trk::MeasurementBase::localParameters ( ) const

inlineinherited

Interface method to get the LocalParameters.

Definition at line 132 of file MeasurementBase.h.

{
  return m_localParams;
}

numberOfInstantiations()

static std::size_t Trk::ObjectCounter< Trk::RIO_OnTrack >::numberOfInstantiations ( )

inlinestaticinherited

Definition at line 25 of file TrkObjectCounter.h.

  {
#ifndef NDEBUG
    return s_numberOfInstantiations.load();
#endif
    return 0;
  }

operator=() [1/2]

MdtDriftCircleOnTrack & Muon::MdtDriftCircleOnTrack::operator=

(

const MdtDriftCircleOnTrack &

other

)

Definition at line 94 of file MdtDriftCircleOnTrack.cxx.

                                                                                            {
     if (&other != this){
         static_cast<Trk::RIO_OnTrack&>(*this) = other;
         m_status = other.m_status;
         m_rio = other.m_rio;
         m_localAngle = other.m_localAngle;
         m_driftTime = other.m_driftTime;
         m_errorStrategy = other.m_errorStrategy;
         m_positionAlongWire = other.m_positionAlongWire;
         m_detEl = other.m_detEl;
         m_globalPosition.release();
     }
     return *this;
}

operator=() [2/2]

MdtDriftCircleOnTrack& Muon::MdtDriftCircleOnTrack::operator= ( MdtDriftCircleOnTrack &&  )

default

positionAlongWire()

double Muon::MdtDriftCircleOnTrack::positionAlongWire ( ) const

inline

Returns the position along the wire, as determined by the extrapolation used when creating this Trk::RIO_OnTrack.

Definition at line 281 of file MdtDriftCircleOnTrack.h.

{ return m_positionAlongWire; }

prepRawData()

const MdtPrepData * Muon::MdtDriftCircleOnTrack::prepRawData ( ) const

inlinefinaloverridevirtual

Returns the PrepRawData used to create this corrected measurement.

Implements Trk::RIO_OnTrack.

Definition at line 257 of file MdtDriftCircleOnTrack.h.

                                                                   {
    if (m_rio.isValid()) return m_rio.cachedElement();
    return nullptr;
}

prepRawDataLink()

const ElementLinkToIDC_MDT_Container & Muon::MdtDriftCircleOnTrack::prepRawDataLink ( ) const

inline

Definition at line 262 of file MdtDriftCircleOnTrack.h.

{ return m_rio; }

rioType()

virtual bool Muon::MdtDriftCircleOnTrack::rioType ( Trk::RIO_OnTrackType::Type  type ) const

inlinefinaloverridevirtual

Method checking the Rio On Track type.

Implements Trk::RIO_OnTrack.

Definition at line 166 of file MdtDriftCircleOnTrack.h.

                                                                           {
      return (type == Trk::RIO_OnTrackType::MdtDriftCircle);
    }

setErrorStrategy()

void Muon::MdtDriftCircleOnTrack::setErrorStrategy ( const MuonDriftCircleErrorStrategy &  strategy )

inlineprivate

Definition at line 276 of file MdtDriftCircleOnTrack.h.

{ m_errorStrategy= strategy; }

setGlobalPosition()

void Muon::MdtDriftCircleOnTrack::setGlobalPosition ( Amg::Vector3D &&  loc3Dframe ) const

private

Uses the passed loc3Dframe to calculate and set the global coord of this hit.

If there is a sagged wire defined, this will be used for the transformation, otherwise the detector element surface is used

Definition at line 125 of file MdtDriftCircleOnTrack.cxx.

                                                                            {
    Amg::Vector3D globPos = associatedSurface().transform() * loc3Dframe;
    m_globalPosition.set(std::make_unique<Amg::Vector3D>(std::move(globPos)));
}

setLocalParameters()

void Muon::MdtDriftCircleOnTrack::setLocalParameters ( const Trk::LocalParameters &  locPos )

inlineprivatevirtual

Sets the local parameters.

Warning

Only intended for use by the Muon::MdtDriftCircleOnTrackCreator

Definition at line 275 of file MdtDriftCircleOnTrack.h.

{ m_localParams = locParams; }

setValues()

void Muon::MdtDriftCircleOnTrack::setValues ( const Trk::TrkDetElementBase *  detEl, const Trk::PrepRawData *  prd  )

inlinefinaloverrideprivatevirtual

Sets the DetElement and Trk::PrepRawData pointers after reading from disk.

Warning

Only intended for use by persistency convertors

Implements Trk::RIO_OnTrack.

Definition at line 286 of file MdtDriftCircleOnTrack.h.

                                                                        {
 
    m_detEl = dynamic_cast<const MuonGM::MdtReadoutElement*>(detEl);
    if (!prd) return;
    if (!prd->type(Trk::PrepRawDataType::MdtPrepData)) {
        throw std::runtime_error("No Mdt prd given to MdtDriftCircleOnTrack");
    }
    m_rio.setElement(static_cast<const MdtPrepData*>(prd));
}

side()

Trk::DriftCircleSide Muon::MdtDriftCircleOnTrack::side ( ) const

inline

Returns the side on which the drift radius is wrt to the track.

Definition at line 249 of file MdtDriftCircleOnTrack.h.

                                                            {
    if (m_status == Trk::UNDECIDED) return Trk::NONE;
    if (localParameters()[Trk::driftRadius] < 0. ) return Trk::LEFT;
    return Trk::RIGHT;
}

status()

Trk::DriftCircleStatus Muon::MdtDriftCircleOnTrack::status ( ) const

inline

Returns the status of the drift radius calibration.

(for more information see the definition of TrkEventPrimitives/DriftCircleStatus)

• extends Trk::RIO_OnTrack interface

Definition at line 255 of file MdtDriftCircleOnTrack.h.

{ return m_status; }

type()

virtual bool Trk::RIO_OnTrack::type ( MeasurementBaseType::Type  type ) const

inlinefinaloverridevirtualinherited

Extended method checking the type.

Implements Trk::MeasurementBase.

Definition at line 110 of file RIO_OnTrack.h.

      {
        return (type == MeasurementBaseType::RIO_OnTrack);
      }

uniqueClone()

std::unique_ptr<RIO_OnTrack> Trk::RIO_OnTrack::uniqueClone ( ) const

inlineinherited

NVI clone returning unique_ptr.

Definition at line 97 of file RIO_OnTrack.h.

                                                    {
       return std::unique_ptr<RIO_OnTrack>(clone());
      };

Friends And Related Function Documentation

Muon::MdtDriftCircleOnTrackCreator

friend class Muon::MdtDriftCircleOnTrackCreator

friend

Definition at line 42 of file MdtDriftCircleOnTrack.h.

Muon::MuonEventCnvTool

friend class Muon::MuonEventCnvTool

friend

Definition at line 41 of file MdtDriftCircleOnTrack.h.

Trk::ITrkEventCnvTool

friend class Trk::ITrkEventCnvTool

friend

Definition at line 40 of file MdtDriftCircleOnTrack.h.

Member Data Documentation

m_detEl

const MuonGM::MdtReadoutElement* Muon::MdtDriftCircleOnTrack::m_detEl {nullptr}

private

Definition at line 241 of file MdtDriftCircleOnTrack.h.

m_driftTime

double Muon::MdtDriftCircleOnTrack::m_driftTime {0.}

private

This is the drift time used to obtain the drift radius.

Definition at line 235 of file MdtDriftCircleOnTrack.h.

m_errorStrategy

MuonDriftCircleErrorStrategy Muon::MdtDriftCircleOnTrack::m_errorStrategy {}

private

Records information about the 'strategy' used by Muon::MdtDriftCircleOnTrackCreator to make this object.

Definition at line 238 of file MdtDriftCircleOnTrack.h.

m_globalPosition

CxxUtils::CachedUniquePtr<Amg::Vector3D> Muon::MdtDriftCircleOnTrack::m_globalPosition {}

private

global position of the measurement.

Definition at line 226 of file MdtDriftCircleOnTrack.h.

m_identifier

Identifier Trk::RIO_OnTrack::m_identifier {}

protectedinherited

Identifier of the RIO_OnTrack (comes from the associated Trk::PrepRawData)

Definition at line 149 of file RIO_OnTrack.h.

m_localAngle

double Muon::MdtDriftCircleOnTrack::m_localAngle {0.}

private

This angle is the position of the point of closest approach in cylindrical coordinates, and is needed to construct the global position.

Definition at line 229 of file MdtDriftCircleOnTrack.h.

m_localCovariance

Amg::MatrixX Trk::MeasurementBase::m_localCovariance

protectedinherited

Definition at line 112 of file MeasurementBase.h.

m_localParams

LocalParameters Trk::MeasurementBase::m_localParams

protectedinherited

Definition at line 111 of file MeasurementBase.h.

m_positionAlongWire

double Muon::MdtDriftCircleOnTrack::m_positionAlongWire {0.}

private

This is the position of the point of closest approach, in the local z coord (i.e.

along the wire), and is needed to construct the global position

Definition at line 232 of file MdtDriftCircleOnTrack.h.

m_rio

ElementLinkToIDC_MDT_Container Muon::MdtDriftCircleOnTrack::m_rio {}

private

the pointer to the MdtPrepData object (mutable because it might need to be recreated when reading tracks)

Definition at line 223 of file MdtDriftCircleOnTrack.h.

m_status

Trk::DriftCircleStatus Muon::MdtDriftCircleOnTrack::m_status {Trk::DriftCircleStatus::UNDECIDED}

private

information on the status of the Mdt measurement - see Trk::DriftCircleStatus for definitions

Definition at line 220 of file MdtDriftCircleOnTrack.h.

s_numberOfInstantiations

std::atomic_size_t Trk::ObjectCounter< Trk::RIO_OnTrack >::s_numberOfInstantiations

inlinestaticinherited

Definition at line 22 of file TrkObjectCounter.h.

---

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

• MdtDriftCircleOnTrack.h
• MdtDriftCircleOnTrack.cxx