MdtCalibInput Class Reference

#include <MdtCalibInput.h>

Collaboration diagram for MdtCalibInput:

Public Types
enum	BFieldComp { BFieldComp::alongWire = 0, BFieldComp::alongTrack = 1 }

Public Member Functions
	MdtCalibInput (const Identifier &id, const int16_t adc, const int16_t tdc, const MuonGMR4::MdtReadoutElement *reEle, const ActsGeometryContext &gctx)
	Minimal constructor in the PhaseII geomerty setup. More...
	MdtCalibInput (const Identifier &id, const int16_t adc, const int16_t tdc, const MuonGM::MdtReadoutElement *reEle)
	Minimal constructor in the legacy geomerty setup. More...
	MdtCalibInput (const MdtDigit &digit, const MuonGM::MuonDetectorManager &detMgr)
	Constructor taking the Mdt digit & the legacy II detector manager. More...
	MdtCalibInput (const MdtDigit &digit, const MuonGMR4::MuonDetectorManager &detMgr, const ActsGeometryContext &gctx)
	Constructor taking the Mdt digit & the Phase II detector manager. More...
	MdtCalibInput (const Muon::MdtPrepData &prd)
	Constructor taking the MdtPrepdata. More...
	MdtCalibInput (const xAOD::MdtDriftCircle &prd, const ActsGeometryContext &gctx)
	Constructor taking taking the xAOD::MdtDriftCircle. More...
	MdtCalibInput (MdtCalibInput &&other)=default
MdtCalibInput &	operator= (MdtCalibInput &&other)=default
	~MdtCalibInput ()
const Identifier &	identify () const
	Returns the Identifier of the hit. More...
int16_t	tdc () const
	Returns the tdc counts of the hit. More...
int16_t	adc () const
	Returns the amount of accumulated charge. More...
const MuonGM::MdtReadoutElement *	legacyDescriptor () const
	Returns the legacy readout element. More...
const MuonGMR4::MdtReadoutElement *	decriptor () const
	Returns the R4 readout element. More...
const Amg::Vector3D &	closestApproach () const
	Returns the point of closest approach to the wire. More...
void	setClosestApproach (const Amg::Vector3D &approach)
	Sets the closest approach. More...
const Amg::Vector3D &	trackDirection () const
	Returns the track direction (Can be zero) More...
void	setTrackDirection (const Amg::Vector3D &trackDir, bool hasPhi)
	Sets the direction of the externally determined track. More...
bool	trackDirHasPhi () const
	Returns whether the track has a phi constaint or not. More...
double	timeOfFlight () const
	Returns the time of flight. More...
void	setTimeOfFlight (const double toF)
	Sets the time of flight (Usually globPos.mag() * inverseSpeed of light) More...
double	triggerTime () const
	Returns the trigger offset time. More...
void	setTriggerTime (const double trigTime)
	Sets the trigger offset time. More...
double	distanceToTrack () const
	Returns the distance to track (signed) More...
Amg::Vector2D	projectMagneticField (const Amg::Vector3D &fieldInGlob) const
	Splits the B-field into the components that point along the transverse track direction & along the tube wire. More...
double	signalPropagationDistance () const
	Calculates the distance that the signal has to travel along the wire. More...
const Trk::StraightLineSurface &	legacySurface () const
	Returns the assocaited ideal surface (Throw exception if no legacy RE is available) More...
const Amg::Vector3D &	surfaceCenter () const
	Returns the center of the associated surface. More...
double	tubeLength () const
	Returns the tube length. More...
double	readOutSide () const
	Returns the sign of the readout position in local coordinates. More...
double	innerTubeR () const
	Returns the inner tube radius. More...

Private Types
using	ReadoutEle_t = std::variant< const MuonGM::MdtReadoutElement *, const MuonGMR4::MdtReadoutElement * >
	Variant type to store the legacy & Phase-II style readout geometry in a single variable. More...

Private Member Functions
const Amg::Transform3D &	localToGlobal () const
	Local to global transformation of the tube. More...
Amg::Vector3D	center () const
	Translational part of the local -> global transform. More...

Private Attributes
Identifier	m_id {}
	Tube identifier. More...
int16_t	m_adc {0}
	Adc counts of the hit. More...
int16_t	m_tdc {0}
	Tdc counts of the hit. More...
const ActsGeometryContext *	m_gctx {nullptr}
	Geometry context, needed to fetch the alignment. More...
ReadoutEle_t	m_RE {}
	Pointer to the associated readout element. More...
IdentifierHash	m_hash {}
	Measurement hash of the Identifier (needed for Phase II) More...
Amg::Vector3D	m_approach {center()}
	Point of closest approach of the track. More...
Amg::Vector3D	m_trackDir {Amg::Vector3D::Zero()}
	Global track direction. More...
bool	m_trackHasPhi {false}
	Does the track direction contain a phi constraint. More...
double	m_ToF {center().mag() * s_inverseSpeed}
double	m_trigTime {0.}
	Trigger time. More...
double	m_distToTrack {0.}
	Distance to track (signed) More...

Static Private Attributes
static constexpr double	s_inverseSpeed {1. / Gaudi::Units::c_light}
	Time of flight. More...

Detailed Description

Definition at line 34 of file MdtCalibInput.h.

Member Typedef Documentation

ReadoutEle_t

using MdtCalibInput::ReadoutEle_t = std::variant<const MuonGM::MdtReadoutElement*, const MuonGMR4::MdtReadoutElement*>

private

Variant type to store the legacy & Phase-II style readout geometry in a single variable.

Definition at line 159 of file MdtCalibInput.h.

Member Enumeration Documentation

BFieldComp

enum MdtCalibInput::BFieldComp

strong

Enumerator
alongWire
alongTrack

Definition at line 124 of file MdtCalibInput.h.

                           {
        alongWire = 0,
        alongTrack = 1,
      };

Constructor & Destructor Documentation

MdtCalibInput() [1/7]

MdtCalibInput::MdtCalibInput	(	const Identifier &	id,
		const int16_t	adc,
		const int16_t	tdc,
		const MuonGMR4::MdtReadoutElement *	reEle,
		const ActsGeometryContext &	gctx
	)

Minimal constructor in the PhaseII geomerty setup.

It takes all necessary ingredients to run later the calibration loop.

Parameters

id	Identifier of the hit to calibrate
adc	Recorded adc counts from the tube
tdc	Recorded tdc counts from the tube
detMgr	Pointer to the associated readout element
gctx	Geometry context to globally align the tube within ATLAS

Definition at line 32 of file MdtCalibInput.cxx.

                                                             :
   m_id{id},
   m_adc{adc},
   m_tdc{tdc},
   m_gctx{&gctx},
   m_RE{reEle},
   m_hash{std::get<const MuonGMR4::MdtReadoutElement*>(m_RE)->measurementHash(m_id)}  {}

MdtCalibInput() [2/7]

MdtCalibInput::MdtCalibInput	(	const Identifier &	id,
		const int16_t	adc,
		const int16_t	tdc,
		const MuonGM::MdtReadoutElement *	reEle
	)

Minimal constructor in the legacy geomerty setup.

It takes all necessary ingredients to run later the calibration loop.

Parameters

id	Identifier of the hit to calibrate
adc	Recorded adc counts from the tube
tdc	Recorded tdc counts from the tube
reEle	Pointer to the associated readout element

Definition at line 50 of file MdtCalibInput.cxx.

                                                                  :
   m_id{id},
   m_adc{adc},
   m_tdc{tdc},
   m_RE{reEle} {}

MdtCalibInput() [3/7]

MdtCalibInput::MdtCalibInput	(	const MdtDigit &	digit,
		const MuonGM::MuonDetectorManager &	detMgr
	)

Constructor taking the Mdt digit & the legacy II detector manager.

Parameters

digit	Digit containing all adc & tdc information
detMgr	Reference to the Detector manager to fetch the Proper readout element
gctx	Geometry context to globally align the tube within ATLAS

Definition at line 59 of file MdtCalibInput.cxx.

                                                                     :
   MdtCalibInput(digit.identify(), digit.adc(), digit.tdc(), 
                 detMgr.getMdtReadoutElement(digit.identify())) {}

MdtCalibInput() [4/7]

MdtCalibInput::MdtCalibInput	(	const MdtDigit &	digit,
		const MuonGMR4::MuonDetectorManager &	detMgr,
		const ActsGeometryContext &	gctx
	)

Constructor taking the Mdt digit & the Phase II detector manager.

Parameters

digit	Digit containing all adc & tdc information
detMgr	Reference to the Detector manager to fetch the Proper readout element
gctx	Geometry context to globally align the tube within ATLAS

Definition at line 44 of file MdtCalibInput.cxx.

                                                             :
   MdtCalibInput(digit.identify(), digit.adc(), digit.tdc(), 
                 detMgr.getMdtReadoutElement(digit.identify()), gctx){}

MdtCalibInput() [5/7]

MdtCalibInput::MdtCalibInput

(

const Muon::MdtPrepData &

prd

)

Constructor taking the MdtPrepdata.

The

Definition at line 76 of file MdtCalibInput.cxx.

                                                      :
   m_id{prd.identify()},
   m_adc{static_cast<int16_t>(prd.adc())},
   m_tdc{static_cast<int16_t>(prd.tdc())},
   m_RE{prd.detectorElement()},  
   m_approach{prd.globalPosition()} {
}

MdtCalibInput() [6/7]

MdtCalibInput::MdtCalibInput	(	const xAOD::MdtDriftCircle &	prd,
		const ActsGeometryContext &	gctx
	)

Constructor taking taking the xAOD::MdtDriftCircle.

Parameters

prd	Reference to the uncalibrated Drift circle
gctx	Geometry context to place the drift circle globally within ATLAS

Definition at line 65 of file MdtCalibInput.cxx.

                                                             :
   m_id{prd.identify()},
   m_adc{prd.adc()},
   m_tdc{prd.tdc()},
   m_gctx{&gctx},
   m_RE{prd.readoutElement()},
   m_hash{prd.measurementHash()},  
   m_approach{localToGlobal()* prd.localCirclePosition()} {}

MdtCalibInput() [7/7]

MdtCalibInput::MdtCalibInput ( MdtCalibInput &&  other )

default

~MdtCalibInput()

MdtCalibInput::~MdtCalibInput ( )

default

Member Function Documentation

adc()

int16_t MdtCalibInput::adc

(

)

const

Returns the amount of accumulated charge.

Definition at line 86 of file MdtCalibInput.cxx.

{ return m_adc; }

center()

Amg::Vector3D MdtCalibInput::center ( ) const

private

Translational part of the local -> global transform.

Definition at line 203 of file MdtCalibInput.cxx.

                                        {
   return localToGlobal().translation();
}

closestApproach()

const Amg::Vector3D & MdtCalibInput::closestApproach

(

)

const

Returns the point of closest approach to the wire.

Definition at line 105 of file MdtCalibInput.cxx.

{return m_approach; }

decriptor()

const MuonGMR4::MdtReadoutElement * MdtCalibInput::decriptor

(

)

const

Returns the R4 readout element.

Definition at line 96 of file MdtCalibInput.cxx.

                                                                { 
      return std::visit([](const auto& re) -> const MuonGMR4::MdtReadoutElement*{
         using REType = std::decay_t<decltype(re)>;
         if constexpr( std::is_same_v<REType, const MuonGMR4::MdtReadoutElement*>){
            return re;
         }
         return nullptr;
   }, m_RE); 
}

distanceToTrack()

double MdtCalibInput::distanceToTrack

(

)

const

Returns the distance to track (signed)

Definition at line 156 of file MdtCalibInput.cxx.

{ return m_distToTrack; }

identify()

const Identifier & MdtCalibInput::identify

(

)

const

Returns the Identifier of the hit.

Definition at line 84 of file MdtCalibInput.cxx.

{ return m_id; }

innerTubeR()

double MdtCalibInput::innerTubeR

(

)

const

Returns the inner tube radius.

Definition at line 169 of file MdtCalibInput.cxx.

                                        {
   const double tubeR = std::visit([](const auto& re) -> double {
       using REType = std::decay_t<decltype(re)>;
      if constexpr(std::is_same_v<REType, const MuonGMR4::MdtReadoutElement*>){
         return re->innerTubeRadius();
      } else if (std::is_same_v<REType, const MuonGM::MdtReadoutElement*>) {
         return re->innerTubeRadius();
      }
   }, m_RE);
   return tubeR;
 }

legacyDescriptor()

const MuonGM::MdtReadoutElement * MdtCalibInput::legacyDescriptor

(

)

const

Returns the legacy readout element.

Definition at line 87 of file MdtCalibInput.cxx.

                                                                     { 
   return std::visit([](const auto& re) -> const MuonGM::MdtReadoutElement*{
         using REType = std::decay_t<decltype(re)>;
         if constexpr( std::is_same_v<REType, const MuonGM::MdtReadoutElement*>){
            return re;
         }
         return nullptr;
   }, m_RE);
}

legacySurface()

const Trk::StraightLineSurface & MdtCalibInput::legacySurface

(

)

const

Returns the assocaited ideal surface (Throw exception if no legacy RE is available)

Definition at line 138 of file MdtCalibInput.cxx.

                                                                 {
   const MuonGM::MdtReadoutElement* re = legacyDescriptor();
   assert(re != nullptr);
   return re->surface(identify());
}

localToGlobal()

const Amg::Transform3D & MdtCalibInput::localToGlobal ( ) const

private

Local to global transformation of the tube.

Definition at line 192 of file MdtCalibInput.cxx.

                                                         {
   return std::visit([this](const auto& re) ->const Amg::Transform3D&{
         using REType = std::decay_t<decltype(re)>;
         if constexpr(std::is_same_v<REType, const MuonGMR4::MdtReadoutElement*>){
            assert(m_gctx != nullptr);
            return re->localToGlobalTrans(*m_gctx, m_hash);
         } else if (std::is_same_v<REType, const MuonGM::MdtReadoutElement*>) {
            return re->localToGlobalTransf(identify());
         }
   }, m_RE);
}

operator=()

MdtCalibInput& MdtCalibInput::operator= ( MdtCalibInput &&  other )

default

projectMagneticField()

Amg::Vector2D MdtCalibInput::projectMagneticField

(

const Amg::Vector3D &

fieldInGlob

)

const

Splits the B-field into the components that point along the transverse track direction & along the tube wire.

Rotate the B-field into the rest frame of the tube (Z-axis along the wire)

In the local coordinate system, the wire points along the z-axis

Convert kilo tesla into tesla... Waaait whaat?

Definition at line 125 of file MdtCalibInput.cxx.

                                                                                    {
   const Amg::Transform3D trf{localToGlobal().inverse()};
   const Amg::Vector3D locBField = trf.linear() * fieldInGlob;
   const Amg::Vector3D locTrkDir = trf.linear() * trackDirection();
 
   const double perpendComp = locTrkDir.block<2,1>(0,0).dot(locBField.block<2,1>(0,0)) 
                            / locTrkDir.perp();
   const double paralelComp = locBField.z();
   return 1000. * Amg::Vector2D{paralelComp, perpendComp};
}

readOutSide()

double MdtCalibInput::readOutSide

(

)

const

Returns the sign of the readout position in local coordinates.

By convention the new readout geometry points along the negative z-axis

Definition at line 180 of file MdtCalibInput.cxx.

                                        {
   const double roSide = std::visit([this](const auto& re) ->double{
               using REType = std::decay_t<decltype(re)>;
               if constexpr(std::is_same_v<REType, const MuonGMR4::MdtReadoutElement*>){
                  return re->getParameters().readoutSide;
               } else if (std::is_same_v<REType, const MuonGM::MdtReadoutElement*>) {
                  return re->tubeFrame_localROPos(identify()).z() > 0. ? 1. : -1.;
               }
            }, m_RE);
   return roSide;
}

setClosestApproach()

void MdtCalibInput::setClosestApproach

(

const Amg::Vector3D &

approach

)

Sets the closest approach.

Definition at line 106 of file MdtCalibInput.cxx.

                                                                  {
   m_approach = approach;
}

setTimeOfFlight()

void MdtCalibInput::setTimeOfFlight

(

const double

toF

)

Sets the time of flight (Usually globPos.mag() * inverseSpeed of light)

Definition at line 116 of file MdtCalibInput.cxx.

{ m_ToF = toF; }

setTrackDirection()

void MdtCalibInput::setTrackDirection	(	const Amg::Vector3D &	trackDir,
		bool	hasPhi
	)

Sets the direction of the externally determined track.

Parameters

trackDir	Direction vector of the track (global frame)
hasPhi	Flag whether the track direction contains phi information

Definition at line 110 of file MdtCalibInput.cxx.

                                                                              { 
   m_trackDir = trackDir;
   m_trackHasPhi = hasPhi;
}

setTriggerTime()

void MdtCalibInput::setTriggerTime

(

const double

trigTime

)

Sets the trigger offset time.

Definition at line 119 of file MdtCalibInput.cxx.

{ m_trigTime = trigTime; }

signalPropagationDistance()

double MdtCalibInput::signalPropagationDistance

(

)

const

Calculates the distance that the signal has to travel along the wire.

Definition at line 143 of file MdtCalibInput.cxx.

                                                      {
   const double propDist = std::visit([this](const auto& re) ->double {
               using REType = std::decay_t<decltype(re)>;
               if constexpr(std::is_same_v<REType, const MuonGMR4::MdtReadoutElement*>){
                  assert(m_gctx != nullptr);
                  return re->distanceToReadout(*m_gctx, m_hash, closestApproach());
               } else if (std::is_same_v<REType, const MuonGM::MdtReadoutElement*>) {
                  return re->distanceFromRO(closestApproach(), identify()) -
                         re->RODistanceFromTubeCentre(identify());
               }
            }, m_RE); 
   return propDist;
}

surfaceCenter()

const Amg::Vector3D & MdtCalibInput::surfaceCenter

(

)

const

Returns the center of the associated surface.

Definition at line 121 of file MdtCalibInput.cxx.

                                                      {
    return legacyDescriptor()->surface(identify()).center();
}

tdc()

int16_t MdtCalibInput::tdc

(

)

const

Returns the tdc counts of the hit.

Definition at line 85 of file MdtCalibInput.cxx.

{ return m_tdc; }

timeOfFlight()

double MdtCalibInput::timeOfFlight

(

)

const

Returns the time of flight.

Definition at line 115 of file MdtCalibInput.cxx.

{ return m_ToF; }

trackDirection()

const Amg::Vector3D & MdtCalibInput::trackDirection

(

)

const

Returns the track direction (Can be zero)

Definition at line 109 of file MdtCalibInput.cxx.

{ return m_trackDir; }

trackDirHasPhi()

bool MdtCalibInput::trackDirHasPhi

(

)

const

Returns whether the track has a phi constaint or not.

Definition at line 114 of file MdtCalibInput.cxx.

{ return m_trackHasPhi; }

triggerTime()

double MdtCalibInput::triggerTime

(

)

const

Returns the trigger offset time.

Definition at line 118 of file MdtCalibInput.cxx.

{ return m_trigTime; }

tubeLength()

double MdtCalibInput::tubeLength

(

)

const

Returns the tube length.

Definition at line 158 of file MdtCalibInput.cxx.

                                       {
   const double tubeLength  = std::visit([this](const auto& re) ->double{
               using REType = std::decay_t<decltype(re)>;
               if constexpr(std::is_same_v<REType, const MuonGMR4::MdtReadoutElement*>){
                  return re->tubeLength(m_hash);
               } else if (std::is_same_v<REType, const MuonGM::MdtReadoutElement*>) {
                  return re->tubeLength(identify());
               }
            }, m_RE);
    return tubeLength;
 }

Member Data Documentation

m_adc

int16_t MdtCalibInput::m_adc {0}

private

Adc counts of the hit.

Definition at line 152 of file MdtCalibInput.h.

m_approach

Amg::Vector3D MdtCalibInput::m_approach {center()}

private

Point of closest approach of the track.

Definition at line 165 of file MdtCalibInput.h.

m_distToTrack

double MdtCalibInput::m_distToTrack {0.}

private

Distance to track (signed)

Definition at line 176 of file MdtCalibInput.h.

m_gctx

const ActsGeometryContext* MdtCalibInput::m_gctx {nullptr}

private

Geometry context, needed to fetch the alignment.

Definition at line 157 of file MdtCalibInput.h.

m_hash

IdentifierHash MdtCalibInput::m_hash {}

private

Measurement hash of the Identifier (needed for Phase II)

Definition at line 163 of file MdtCalibInput.h.

m_id

Identifier MdtCalibInput::m_id {}

private

Tube identifier.

Definition at line 150 of file MdtCalibInput.h.

m_RE

ReadoutEle_t MdtCalibInput::m_RE {}

private

Pointer to the associated readout element.

Definition at line 161 of file MdtCalibInput.h.

m_tdc

int16_t MdtCalibInput::m_tdc {0}

private

Tdc counts of the hit.

Definition at line 154 of file MdtCalibInput.h.

m_ToF

double MdtCalibInput::m_ToF {center().mag() * s_inverseSpeed}

private

Definition at line 172 of file MdtCalibInput.h.

m_trackDir

Amg::Vector3D MdtCalibInput::m_trackDir {Amg::Vector3D::Zero()}

private

Global track direction.

Definition at line 167 of file MdtCalibInput.h.

m_trackHasPhi

bool MdtCalibInput::m_trackHasPhi {false}

private

Does the track direction contain a phi constraint.

Definition at line 169 of file MdtCalibInput.h.

m_trigTime

double MdtCalibInput::m_trigTime {0.}

private

Trigger time.

Definition at line 174 of file MdtCalibInput.h.

s_inverseSpeed

constexpr double MdtCalibInput::s_inverseSpeed {1. / Gaudi::Units::c_light}

staticconstexprprivate

Time of flight.

Definition at line 171 of file MdtCalibInput.h.

---

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

• MdtCalibInput.h
• MdtCalibInput.cxx