cbm::algo::ca::TripletConstructor Class Reference

#include <CaTripletConstructor.h>

Collaboration diagram for cbm::algo::ca::TripletConstructor:

Public Member Functions
	TripletConstructor (const ca::Framework &framework, const ca::Parameters< fvec > &pars, WindowData &wData, const fscal mass, const ca::TrackingMode &mode)
	---— Constructors and destructor ---—
	TripletConstructor (const TripletConstructor &)=delete
	Copy constructor.
	TripletConstructor (TripletConstructor &&)=delete
	Move constructor.
TripletConstructor &	operator= (const TripletConstructor &)=delete
	Copy assignment operator.
TripletConstructor &	operator= (TripletConstructor &&)=delete
	Move assignment operator.
	~TripletConstructor ()=default
	Destructor.
void	CreateTripletsForHit (Vector< ca::Triplet > &tripletsOut, int istal, int istam, int istar, ca::HitIndex_t ihl)
	---— FUNCTIONAL PART ---—

Private Types
typedef std::pair< Vector< TrackParamV >, Vector< ca::HitIndex_t > >	Doublet_t
typedef std::tuple< Vector< TrackParamV >, Vector< ca::HitIndex_t >, Vector< ca::HitIndex_t > >	Triplet_t

Private Member Functions
bool	InitStations (int istal, int istam, int istar)
void	FindDoublets (kf::TrackKalmanFilter< fvec > &fit)
	Find the doublets. Reformat data in the portion of doublets.
void	FindTripletHits ()
void	FindTriplets ()
	Find triplets on station.
void	SelectTriplets (Vector< ca::Triplet > &tripletsOut)
	Select good triplets.
void	CollectHits (Vector< ca::HitIndex_t > &collectedHits, kf::TrackKalmanFilter< fvec > &fit, const int iSta, const double chi2Cut, const McMatch &mc, const int maxNhits)

Private Attributes
const ca::Framework &	fFramework
	Reference to the Framework object.
const Parameters< fvec > &	fParameters
	Object of Framework parameters class.
const cbm::algo::kf::Setup< fvec > &	fSetup
	Reference to the setup.
const cbm::algo::kf::Field< fvec > &	fField
	Reference to field.
WindowData &	frWData
fscal	fDefaultMass {constants::phys::MuonMass}
	mass of the propagated particle [GeV/c2]
ca::TrackingMode	fTrackingMode
bool	fIsTargetField {false}
	is the magnetic field present at the target
int	fNfieldStations {0}
int	fIstaL {-1}
	left station index
int	fIstaM {-1}
	middle station index
int	fIstaR {-1}
	right station index
const kf::ActiveLayer< fvec > *	fStaL {nullptr}
	left station
const kf::ActiveLayer< fvec > *	fStaM {nullptr}
	mid station
const kf::ActiveLayer< fvec > *	fStaR {nullptr}
	right station
std::array< int, 2 >	fFldStaTL {}
	indices of two stations for field approximation between the t. and l. hit
std::array< int, 3 >	fFldStaLR {}
	indices of three stations for field approximation between the l. and r. hits
ca::HitIndex_t	fIhitL
	index of the left hit in fAlgo->fWindowHits
kf::FieldRegion< fvec >	fFldL
Triplet_t	fTripletData
Doublet_t	fDoubletData

Static Private Attributes
static constexpr bool	fDebugDublets = false
static constexpr bool	fDebugTriplets = false
static constexpr bool	fDebugCollectHits = false

Detailed Description

Construction of triplets for the CA tracker

Definition at line 29 of file CaTripletConstructor.h.

Member Typedef Documentation

Doublet_t

typedef std::pair<Vector<TrackParamV>, Vector<ca::HitIndex_t> > cbm::algo::ca::TripletConstructor::Doublet_t

private

Definition at line 58 of file CaTripletConstructor.h.

Triplet_t

typedef std::tuple<Vector<TrackParamV>, Vector<ca::HitIndex_t>, Vector<ca::HitIndex_t> > cbm::algo::ca::TripletConstructor::Triplet_t

private

Definition at line 59 of file CaTripletConstructor.h.

Constructor & Destructor Documentation

TripletConstructor() [1/3]

cbm::algo::ca::TripletConstructor::TripletConstructor	(	const ca::Framework &	framework,
		const ca::Parameters< fvec > &	pars,
		WindowData &	wData,
		const fscal	mass,
		const ca::TrackingMode &	mode )

---— Constructors and destructor ---—

Constructor

Parameters

nThreads

Number of threads for multi-threaded mode

Definition at line 22 of file CaTripletConstructor.cxx.

References fDefaultMass, fField, fFramework, fIsTargetField, fNfieldStations, fParameters, frWData, fSetup, and fTrackingMode.

Referenced by operator=(), operator=(), TripletConstructor(), and TripletConstructor().

TripletConstructor() [2/3]

cbm::algo::ca::TripletConstructor::TripletConstructor ( const TripletConstructor & )

delete

Copy constructor.

References TripletConstructor().

TripletConstructor() [3/3]

cbm::algo::ca::TripletConstructor::TripletConstructor ( TripletConstructor && )

delete

Move constructor.

References TripletConstructor().

~TripletConstructor()

cbm::algo::ca::TripletConstructor::~TripletConstructor ( )

default

Destructor.

Member Function Documentation

CollectHits()

void cbm::algo::ca::TripletConstructor::CollectHits ( Vector< ca::HitIndex_t > & collectedHits, kf::TrackKalmanFilter< fvec > & fit, const int iSta, const double chi2Cut, const McMatch & mc, const int maxNhits )

private

Collect hits on a station

Definition at line 655 of file CaTripletConstructor.cxx.

References cbm::algo::kf::TrackParamBase< T >::ChiSq(), cbm::algo::ca::GridArea::DoLoopOverEntireGrid(), cbm::algo::ca::Hit::dX2(), cbm::algo::ca::Hit::dXY(), cbm::algo::ca::Hit::dY2(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::ExtrapolateLineDxy(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::ExtrapolateLineXdX2(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::ExtrapolateLineYdY2(), cbm::algo::kf::utils::fabs(), fDebugCollectHits, fFramework, fParameters, frWData, fSetup, cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::GetChi2XChi2U(), cbm::algo::ca::GridArea::GetNextObjectId(), cbm::algo::ca::Hit::Id(), cbm::algo::ca::McMatch::IsEmpty(), cbm::algo::kf::ActiveLayer< F >::IsTimeMeasured(), cbm::algo::kf::fvec::One(), cbm::algo::ca::Vector< T >::push_back(), cbm::algo::ca::Hit::RangeT(), cbm::algo::ca::Hit::RangeX(), cbm::algo::ca::Hit::RangeY(), cbm::algo::ca::Vector< T >::reserve(), sqrt(), cbm::algo::ca::Hit::T(), cbm::algo::ca::Hit::ToString(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::Tr(), cbm::algo::ca::Hit::X(), x, cbm::algo::ca::Hit::Y(), y, and cbm::algo::ca::Hit::Z().

Referenced by CreateTripletsForHit(), and FindTripletHits().

CreateTripletsForHit()

void cbm::algo::ca::TripletConstructor::CreateTripletsForHit	(	Vector< ca::Triplet > &	tripletsOut,
		int	istal,
		int	istam,
		int	istar,
		ca::HitIndex_t	ihl )

---— FUNCTIONAL PART ---—

Get the field approximation. Add the target to parameters estimation. Propagaete to the middle station of a triplet.

Find the doublets. Reformat data into portions of doublets.

Definition at line 87 of file CaTripletConstructor.cxx.

References CollectHits(), cbm::algo::ca::constants::phys::ElectronMass, cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::ExtrapolateLineInField(), fDefaultMass, fDoubletData, fField, fFldL, fFldStaLR, fFldStaTL, fFramework, fIhitL, cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::FilterExtrapolatedXY(), FindDoublets(), FindTripletHits(), FindTriplets(), fIstaL, fIstaM, fIstaR, fParameters, frWData, fSetup, fStaL, fStaM, cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::GetMeasurementModelAtZline(), InitStations(), cbm::algo::ca::McMatch::IsEmpty(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::Linearization(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::MultipleScattering(), SelectTriplets(), cbm::algo::kf::FieldRegion< T >::Set(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::SetParticleMass(), cbm::algo::ca::constants::phys::SpeedOfLightInv, and cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::Tr().

Referenced by cbm::algo::ca::TrackFinderWindow::ConstructTriplets().

FindDoublets()

void cbm::algo::ca::TripletConstructor::FindDoublets ( kf::TrackKalmanFilter< fvec > & fit )

private

Find the doublets. Reformat data in the portion of doublets.

Definition at line 198 of file CaTripletConstructor.cxx.

References cbm::algo::ca::Hit::dT2(), cbm::algo::ca::Hit::dX2(), cbm::algo::ca::Hit::dXY(), cbm::algo::ca::Hit::dY2(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::ExtrapolateNoField(), fDoubletData, fFramework, fIhitL, cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::FilterTime(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::FilterXY(), fIstaM, fIsTargetField, fParameters, frWData, fSetup, fStaL, fStaM, fTrackingMode, cbm::algo::kf::TrackParamBase< T >::GetQp(), cbm::algo::ca::Hit::Id(), cbm::algo::ca::kMcbm, cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::Linearization(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::MultipleScattering(), cbm::algo::kf::fvec::One(), cbm::algo::ca::Hit::RangeT(), cbm::algo::ca::Hit::RangeX(), cbm::algo::ca::Hit::RangeY(), cbm::algo::ca::Vector< T >::shrink(), sqrt(), cbm::algo::ca::Hit::T(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::Tr(), tracks, cbm::algo::ca::Hit::X(), cbm::algo::ca::Hit::Y(), and cbm::algo::ca::Hit::Z().

Referenced by CreateTripletsForHit().

FindTripletHits()

void cbm::algo::ca::TripletConstructor::FindTripletHits ( )

private

Add the middle hits to parameters estimation. Propagate to right station. Find the triplets (right hit). Reformat data in the portion of triplets.

Add the middle hits to parameters estimation. Propagate to right station. Find the triplets(right hit). Reformat data in the portion of triplets.

Definition at line 291 of file CaTripletConstructor.cxx.

References CollectHits(), cbm::algo::ca::constants::phys::ElectronMass, cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::Extrapolate(), fDebugDublets, fDefaultMass, fDoubletData, fFldL, fFramework, fIhitL, fIstaL, fIstaM, fIstaR, fParameters, frWData, fStaR, fTrackingMode, fTripletData, cbm::algo::ca::McMatch::IsEmpty(), cbm::algo::ca::kSts, cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::Linearization(), cbm::algo::ca::Vector< T >::push_back(), cbm::algo::ca::Vector< T >::reserve(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::SetParticleMass(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::SetTrack(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::Tr(), cbm::algo::ca::Hit::X(), cbm::algo::ca::Hit::Y(), and cbm::algo::ca::Hit::Z().

Referenced by CreateTripletsForHit().

FindTriplets()

void cbm::algo::ca::TripletConstructor::FindTriplets ( )

private

Find triplets on station.

Refit Triplets

Definition at line 419 of file CaTripletConstructor.cxx.

References cbm::algo::ca::_fvecalignment, cbm::algo::ca::Hit::dT2(), cbm::algo::kf::MeasurementXy< DataT >::Dx2(), cbm::algo::ca::Hit::dX2(), cbm::algo::kf::MeasurementXy< DataT >::Dxy(), cbm::algo::ca::Hit::dXY(), cbm::algo::kf::MeasurementXy< DataT >::Dy2(), cbm::algo::ca::Hit::dY2(), cbm::algo::ca::constants::phys::ElectronMass, cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::EnergyLossCorrection(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::Extrapolate(), fDebugTriplets, fDefaultMass, fField, fFramework, fIhitL, cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::FilterExtrapolatedXY(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::FilterTime(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::FilterXY(), fIstaL, fIstaM, fIstaR, fParameters, frWData, fSetup, fStaL, fStaM, fStaR, fTripletData, cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::GetMeasurementModelAtZline(), cbm::algo::kf::kDownstream, cbm::algo::kf::kUpstream, cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::MultipleScattering(), cbm::algo::kf::fvec::One(), cbm::algo::kf::LinearizationQp< T >::qp, cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::SetLinearization(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::SetParticleMass(), cbm::algo::kf::defs::SpeedOfLightInv, cbm::algo::ca::Hit::T(), cbm::algo::kf::TrackKalmanFilter< DataT, Settings >::Tr(), tracks, cbm::algo::ca::Hit::X(), x, cbm::algo::ca::Hit::Y(), y, and cbm::algo::ca::Hit::Z().

Referenced by CreateTripletsForHit().

InitStations()

bool cbm::algo::ca::TripletConstructor::InitStations ( int istal, int istam, int istar )

private

Definition at line 46 of file CaTripletConstructor.cxx.

References fFldStaLR, fFldStaTL, fIstaL, fIstaM, fIstaR, fNfieldStations, fSetup, fStaL, fStaM, and fStaR.

Referenced by CreateTripletsForHit().

operator=() [1/2]

TripletConstructor & cbm::algo::ca::TripletConstructor::operator= ( const TripletConstructor & )

delete

Copy assignment operator.

References TripletConstructor().

operator=() [2/2]

TripletConstructor & cbm::algo::ca::TripletConstructor::operator= ( TripletConstructor && )

delete

Move assignment operator.

References TripletConstructor().

SelectTriplets()

void cbm::algo::ca::TripletConstructor::SelectTriplets ( Vector< ca::Triplet > & tripletsOut )

private

Select good triplets.

Selects good triplets and saves them into tripletsOut. Finds neighbouring triplets at the next station.

Definition at line 600 of file CaTripletConstructor.cxx.

References CBMCA_DEBUG_ASSERT, cbm::algo::ca::Vector< T >::emplace_back(), fIhitL, fIstaL, fIstaM, fIstaR, frWData, fStaL, fStaM, fStaR, fTripletData, cbm::algo::ca::Vector< T >::reserve(), and tracks.

Referenced by CreateTripletsForHit().

Member Data Documentation

fDebugCollectHits

bool cbm::algo::ca::TripletConstructor::fDebugCollectHits = false

staticconstexprprivate

Definition at line 116 of file CaTripletConstructor.h.

Referenced by CollectHits().

fDebugDublets

bool cbm::algo::ca::TripletConstructor::fDebugDublets = false

staticconstexprprivate

Definition at line 114 of file CaTripletConstructor.h.

Referenced by FindTripletHits().

fDebugTriplets

bool cbm::algo::ca::TripletConstructor::fDebugTriplets = false

staticconstexprprivate

Definition at line 115 of file CaTripletConstructor.h.

Referenced by FindTriplets().

fDefaultMass

fscal cbm::algo::ca::TripletConstructor::fDefaultMass {constants::phys::MuonMass}

private

mass of the propagated particle [GeV/c2]

Definition at line 85 of file CaTripletConstructor.h.

Referenced by CreateTripletsForHit(), FindTripletHits(), FindTriplets(), and TripletConstructor().

fDoubletData

Doublet_t cbm::algo::ca::TripletConstructor::fDoubletData

private

Definition at line 111 of file CaTripletConstructor.h.

Referenced by CreateTripletsForHit(), FindDoublets(), and FindTripletHits().

fField

const cbm::algo::kf::Field<fvec>& cbm::algo::ca::TripletConstructor::fField

private

Reference to field.

Definition at line 83 of file CaTripletConstructor.h.

Referenced by CreateTripletsForHit(), FindTriplets(), and TripletConstructor().

fFldL

kf::FieldRegion<fvec> cbm::algo::ca::TripletConstructor::fFldL

private

Definition at line 105 of file CaTripletConstructor.h.

Referenced by CreateTripletsForHit(), and FindTripletHits().

fFldStaLR

std::array<int, 3> cbm::algo::ca::TripletConstructor::fFldStaLR {}

private

indices of three stations for field approximation between the l. and r. hits

Definition at line 102 of file CaTripletConstructor.h.

Referenced by CreateTripletsForHit(), and InitStations().

fFldStaTL

std::array<int, 2> cbm::algo::ca::TripletConstructor::fFldStaTL {}

private

indices of two stations for field approximation between the t. and l. hit

Definition at line 101 of file CaTripletConstructor.h.

Referenced by CreateTripletsForHit(), and InitStations().

fFramework

const ca::Framework& cbm::algo::ca::TripletConstructor::fFramework

private

Reference to the Framework object.

Definition at line 80 of file CaTripletConstructor.h.

Referenced by CollectHits(), CreateTripletsForHit(), FindDoublets(), FindTripletHits(), FindTriplets(), and TripletConstructor().

fIhitL

ca::HitIndex_t cbm::algo::ca::TripletConstructor::fIhitL

private

index of the left hit in fAlgo->fWindowHits

Definition at line 104 of file CaTripletConstructor.h.

Referenced by CreateTripletsForHit(), FindDoublets(), FindTripletHits(), FindTriplets(), and SelectTriplets().

fIstaL

int cbm::algo::ca::TripletConstructor::fIstaL {-1}

private

left station index

Definition at line 93 of file CaTripletConstructor.h.

Referenced by CreateTripletsForHit(), FindTripletHits(), FindTriplets(), InitStations(), and SelectTriplets().

fIstaM

int cbm::algo::ca::TripletConstructor::fIstaM {-1}

private

middle station index

Definition at line 94 of file CaTripletConstructor.h.

Referenced by CreateTripletsForHit(), FindDoublets(), FindTripletHits(), FindTriplets(), InitStations(), and SelectTriplets().

fIstaR

int cbm::algo::ca::TripletConstructor::fIstaR {-1}

private

right station index

Definition at line 95 of file CaTripletConstructor.h.

Referenced by CreateTripletsForHit(), FindTripletHits(), FindTriplets(), InitStations(), and SelectTriplets().

fIsTargetField

bool cbm::algo::ca::TripletConstructor::fIsTargetField {false}

private

is the magnetic field present at the target

Definition at line 88 of file CaTripletConstructor.h.

Referenced by FindDoublets(), and TripletConstructor().

fNfieldStations

int cbm::algo::ca::TripletConstructor::fNfieldStations {0}

private

Definition at line 91 of file CaTripletConstructor.h.

Referenced by InitStations(), and TripletConstructor().

fParameters

const Parameters<fvec>& cbm::algo::ca::TripletConstructor::fParameters

private

Object of Framework parameters class.

Definition at line 81 of file CaTripletConstructor.h.

Referenced by CollectHits(), CreateTripletsForHit(), FindDoublets(), FindTripletHits(), FindTriplets(), and TripletConstructor().

frWData

WindowData& cbm::algo::ca::TripletConstructor::frWData

private

Definition at line 84 of file CaTripletConstructor.h.

Referenced by CollectHits(), CreateTripletsForHit(), FindDoublets(), FindTripletHits(), FindTriplets(), SelectTriplets(), and TripletConstructor().

fSetup

const cbm::algo::kf::Setup<fvec>& cbm::algo::ca::TripletConstructor::fSetup

private

Reference to the setup.

Definition at line 82 of file CaTripletConstructor.h.

Referenced by CollectHits(), CreateTripletsForHit(), FindDoublets(), FindTriplets(), InitStations(), and TripletConstructor().

fStaL

const kf::ActiveLayer<fvec>* cbm::algo::ca::TripletConstructor::fStaL {nullptr}

private

left station

Definition at line 97 of file CaTripletConstructor.h.

Referenced by CreateTripletsForHit(), FindDoublets(), FindTriplets(), InitStations(), and SelectTriplets().

fStaM

const kf::ActiveLayer<fvec>* cbm::algo::ca::TripletConstructor::fStaM {nullptr}

private

mid station

Definition at line 98 of file CaTripletConstructor.h.

Referenced by CreateTripletsForHit(), FindDoublets(), FindTriplets(), InitStations(), and SelectTriplets().

fStaR

const kf::ActiveLayer<fvec>* cbm::algo::ca::TripletConstructor::fStaR {nullptr}

private

right station

Definition at line 99 of file CaTripletConstructor.h.

Referenced by FindTripletHits(), FindTriplets(), InitStations(), and SelectTriplets().

fTrackingMode

ca::TrackingMode cbm::algo::ca::TripletConstructor::fTrackingMode

private

Definition at line 86 of file CaTripletConstructor.h.

Referenced by FindDoublets(), FindTripletHits(), and TripletConstructor().

fTripletData

Triplet_t cbm::algo::ca::TripletConstructor::fTripletData

private

Definition at line 108 of file CaTripletConstructor.h.

Referenced by FindTripletHits(), FindTriplets(), and SelectTriplets().

---

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

• CaTripletConstructor.h
• CaTripletConstructor.cxx