CbmStsKFTrackFitter Class Reference

#include <CbmStsKFTrackFitter.h>

Inheritance diagram for CbmStsKFTrackFitter:

Collaboration diagram for CbmStsKFTrackFitter:

Public Member Functions
	CbmStsKFTrackFitter ()
	~CbmStsKFTrackFitter ()
void	Init ()
Int_t	DoFit (CbmStsTrack *track, Int_t pidHypo=211)
void	Extrapolate (CbmStsTrack *track, Double_t z, FairTrackParam *e_track)
void	Extrapolate (FairTrackParam *trackPar, Double_t z, FairTrackParam *e_track)
Double_t	GetChiToVertex (CbmStsTrack *track, CbmVertex *vtx=nullptr)
Double_t	FitToVertex (CbmStsTrack *track, CbmVertex *vtx, FairTrackParam *v_track)
	ClassDef (CbmStsKFTrackFitter, 1)

Private Member Functions
void	SetKFHits (CbmKFTrack &T, CbmStsTrack *track)
Bool_t	CheckTrack (CbmKFTrack &T)
	CbmStsKFTrackFitter (const CbmStsKFTrackFitter &)
void	operator= (const CbmStsKFTrackFitter &)

Private Attributes
std::vector< CbmKFStsHit >	fHits
TClonesArray *	fMvdHitsArray
TClonesArray *	fStsHitsArray
Bool_t	fIsInitialised

Detailed Description

Definition at line 17 of file CbmStsKFTrackFitter.h.

Constructor & Destructor Documentation

CbmStsKFTrackFitter() [1/2]

CbmStsKFTrackFitter::CbmStsKFTrackFitter

(

)

Default constructor

Definition at line 29 of file CbmStsKFTrackFitter.cxx.

~CbmStsKFTrackFitter()

CbmStsKFTrackFitter::~CbmStsKFTrackFitter ( )

inline

Destructor

Definition at line 26 of file CbmStsKFTrackFitter.h.

CbmStsKFTrackFitter() [2/2]

CbmStsKFTrackFitter::CbmStsKFTrackFitter ( const CbmStsKFTrackFitter & )

private

Member Function Documentation

CheckTrack()

Bool_t CbmStsKFTrackFitter::CheckTrack ( CbmKFTrack & T )

private

Definition at line 240 of file CbmStsKFTrackFitter.cxx.

Referenced by DoFit().

ClassDef()

CbmStsKFTrackFitter::ClassDef	(	CbmStsKFTrackFitter	,
		1	)

DoFit()

Int_t CbmStsKFTrackFitter::DoFit ( CbmStsTrack * track, Int_t pidHypo = 211 )

virtual

Fit given track using Kalman Filter algorithm

Implements CbmStsTrackFitter.

Definition at line 92 of file CbmStsKFTrackFitter.cxx.

References CheckTrack(), CbmTrack::SetFlag(), SetKFHits(), CbmTrack::SetParamLast(), CbmKFTrack::SetPID(), and CbmTrack::SetPidHypo().

Referenced by CbmLitFitQa::ProcessTrackParamsAtVertex().

Extrapolate() [1/2]

void CbmStsKFTrackFitter::Extrapolate ( CbmStsTrack * track, Double_t z, FairTrackParam * e_track )

virtual

Extrapolate track to any Z position

Parameters

track	already fitted STS track
z	new z-position
e_track	(return value) extrapolated track parameters

Implements CbmStsTrackFitter.

Definition at line 156 of file CbmStsKFTrackFitter.cxx.

References CbmTrack::GetParamFirst(), CbmTrack::GetParamLast(), CbmTrack::GetPidHypo(), SetKFHits(), and CbmKFTrack::SetPID().

Referenced by CbmRichTrackExtrapolationKF::DoExtrapolation(), CbmAnaDimuonAnalysis::Exec(), and CbmEcalTrackingMuch::Exec().

Extrapolate() [2/2]

void CbmStsKFTrackFitter::Extrapolate	(	FairTrackParam *	trackPar,
		Double_t	z,
		FairTrackParam *	e_track )

Extrapolate track param. to any Z position

Parameters

track	already fitted STS track
z	new z-position
e_track	(return value) extrapolated track parameters

Definition at line 142 of file CbmStsKFTrackFitter.cxx.

References CbmKFTrack::SetTrackParam().

FitToVertex()

Double_t CbmStsKFTrackFitter::FitToVertex	(	CbmStsTrack *	track,
		CbmVertex *	vtx,
		FairTrackParam *	v_track )

Fit track to a vertex

Parameters

track	already fitted STS track
vtx	vertex
v_track	(return value) fitted track parameters
retrun	sqrt(Chi^2/NDF)

Definition at line 221 of file CbmStsKFTrackFitter.cxx.

References sqrt().

Referenced by CbmKresFunctions::ChiToVertex(), CbmHadronAnalysis::ExecEvent(), CbmKresFunctions::FitToVertex(), CbmKresFunctions::FitToVertexAndGetChi(), and CbmLitFitQa::ProcessTrackParamsAtVertex().

GetChiToVertex()

Double_t CbmStsKFTrackFitter::GetChiToVertex	(	CbmStsTrack *	track,
		CbmVertex *	vtx = nullptr )

Get normalized (in sigma's) impact parameter form vertex vtx if no vtx given, return deviation from primary vertex

Definition at line 192 of file CbmStsKFTrackFitter.cxx.

References CbmVertex::CovMatrix(), CbmKFMath::getDeviation(), CbmVertex::GetX(), CbmVertex::GetY(), CbmVertex::GetZ(), and CbmKFTrack::SetStsTrack().

Referenced by CbmKresFunctions::ChiToVertex(), CbmAnaDimuonAnalysis::Exec(), CbmHadronAnalysis::ExecEvent(), CbmKresFunctions::FitToVertexAndGetChi(), and CbmLitFitQa::ProcessTrackParamsAtVertex().

Init()

void CbmStsKFTrackFitter::Init ( )

virtual

Initialisation

Reimplemented from CbmStsTrackFitter.

Definition at line 33 of file CbmStsKFTrackFitter.cxx.

References fIsInitialised, fMvdHitsArray, fStsHitsArray, CbmKF::Instance(), and rootMgr.

Referenced by CbmAnaDimuonAnalysis::Init(), CbmHadronAnalysis::Init(), CbmLitFitQa::Init(), and SetKFHits().

operator=()

void CbmStsKFTrackFitter::operator= ( const CbmStsKFTrackFitter & )

private

SetKFHits()

void CbmStsKFTrackFitter::SetKFHits ( CbmKFTrack & T, CbmStsTrack * track )

private

Definition at line 63 of file CbmStsKFTrackFitter.cxx.

References fHits, fIsInitialised, fMvdHitsArray, fStsHitsArray, CbmStsTrack::GetMvdHitIndex(), CbmStsTrack::GetNofMvdHits(), CbmStsTrack::GetNofStsHits(), CbmStsTrack::GetStsHitIndex(), and Init().

Referenced by DoFit(), and Extrapolate().

Member Data Documentation

fHits

std::vector<CbmKFStsHit> CbmStsKFTrackFitter::fHits

private

Definition at line 71 of file CbmStsKFTrackFitter.h.

Referenced by SetKFHits().

fIsInitialised

Bool_t CbmStsKFTrackFitter::fIsInitialised

private

Definition at line 76 of file CbmStsKFTrackFitter.h.

Referenced by Init(), and SetKFHits().

fMvdHitsArray

TClonesArray* CbmStsKFTrackFitter::fMvdHitsArray

private

Definition at line 73 of file CbmStsKFTrackFitter.h.

Referenced by Init(), and SetKFHits().

fStsHitsArray

TClonesArray* CbmStsKFTrackFitter::fStsHitsArray

private

Definition at line 74 of file CbmStsKFTrackFitter.h.

Referenced by Init(), and SetKFHits().

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

• CbmStsKFTrackFitter.h
• CbmStsKFTrackFitter.cxx