BKLMTrackFitter Class Reference

track fitting procedure More...

#include <BKLMTrackFitter.h>

Collaboration diagram for BKLMTrackFitter:

Public Member Functions
	BKLMTrackFitter ()
	Default constructor. More...
	~BKLMTrackFitter ()
	Destructor.
double	fit (std::list< KLMHit2d * > &listTrackPoint)
	do fit and returns chi square of the fit.
double	distanceToHit (KLMHit2d *hit, double &error, double &sigma)
	Distance from track to a hit in the plane of the module.
double	globalDistanceToHit (KLMHit2d *hit, double &error, double &sigma)
	Distance from track to a hit in the global system. More...
double	fit1dSectorTrack (std::list< KLMHit2d * > hitList, CLHEP::HepVector &eta, CLHEP::HepSymMatrix &error, int depDir, int indDir)
	do fit in the y-x plane or z-x plane
double	fit1dTrack (std::list< KLMHit2d * > hitList, CLHEP::HepVector &eta, CLHEP::HepSymMatrix &error, int depDir, int indDir)
	do fit in the global system More...
CLHEP::HepVector	getTrackParam ()
	Get track parameters in the global system. y = p0 + p1 * x; y = p2 + p3 * z, if in local sector fit mode: y = p0 + p1 * x; z = p2 + p3 * x.
CLHEP::HepSymMatrix	getTrackParamErr ()
	Get invariance matrix of track parameters in the global system.
CLHEP::HepVector	getTrackParamSector ()
	Get track parameters in the sector locan system, y = p0 + p1 * x, z = p2 + p3 *x, where the first layer of the sector is used as reference.
CLHEP::HepSymMatrix	getTrackParamSectorErr ()
	Get invariance matrix of track parameters in the sector local system, where the first layer of the sector is used as reference.
bool	isValid ()
	Is fit valid.
bool	isGood ()
	Is fit good.
float	getChi2 ()
	Chi square of the fit.
int	getNumHit ()
	number of the hits on this track
void	inValidate ()
	Invalidate track.
void	setGlobalFit (bool localOrGlobal)
	set the fitting mode, local system or global system

Private Attributes
bool	m_Valid
	Is fit valid.
bool	m_Good
	Is fit good.
float	m_Chi2
	Chi square of fit.
int	m_NumHit
	the number of hits on this track
bool	m_globalFit
	do fit in the local system or global system false: local sys; true: global sys.
CLHEP::HepVector	m_SectorPar
	track params in the sector local system
CLHEP::HepSymMatrix	m_SectorErr
	track params errors in the sector local system
CLHEP::HepVector	m_GlobalPar
	track params in global system
CLHEP::HepSymMatrix	m_GlobalErr
	track params errors in global system
bklm::GeometryPar *	m_GeoPar
	pointer to GeometryPar singleton

Detailed Description

track fitting procedure

Definition at line 29 of file BKLMTrackFitter.h.

Constructor & Destructor Documentation

BKLMTrackFitter()

BKLMTrackFitter

(

)

Default constructor.

Constructor.

Definition at line 40 of file BKLMTrackFitter.cc.

                                :
  m_Valid(false),
  m_Good(false),
  m_Chi2(0.0),
  m_NumHit(0),
  m_globalFit(false),
  m_SectorPar(4, 0),
  m_SectorErr(4, 0),
  m_GlobalPar(4, 0),
  m_GlobalErr(4, 0),
  m_GeoPar(nullptr)
{
}

Member Function Documentation

fit1dTrack()

double fit1dTrack	(	std::list< KLMHit2d * >	hitList,
		CLHEP::HepVector &	eta,
		CLHEP::HepSymMatrix &	error,
		int	depDir,
		int	indDir
	)

do fit in the global system

do fit in global system, handle tracks that go thrugh multi-sectors

Definition at line 486 of file BKLMTrackFitter.cc.

globalDistanceToHit()

double globalDistanceToHit	(	KLMHit2d *	hit,
		double &	error,
		double &	sigma
	)

Distance from track to a hit in the global system.

Distance from track to a hit calculated in the global system.

Definition at line 233 of file BKLMTrackFitter.cc.

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

• klm/bklm/modules/bklmTracking/include/BKLMTrackFitter.h
• klm/bklm/modules/bklmTracking/src/BKLMTrackFitter.cc