KFitTrack is a container of the track information (Lorentz vector, position, and error matrix), and a set of macro functions to set/get the contents. More...

#include <KFitTrack.h>

Collaboration diagram for KFitTrack:

[legend]

Classes
struct	KFitPXE
	KFitPXE is a container of the track information (Lorentz vector, position, and error matrix). More...

Public Member Functions
	KFitTrack (void)
	Construct an object with no argument.

	KFitTrack (const KFitTrack &kp)
	Construct the object as a copy constructor.

	KFitTrack (const CLHEP::HepLorentzVector &p, const HepPoint3D &x, const CLHEP::HepSymMatrix &e, const double q, const int flag=KFitConst::kBeforeFit)
	Construct the object with track properties. More...

	~KFitTrack (void)
	Destruct the object.

KFitTrack &	operator= (const KFitTrack &)
	Operator: assignment operator.

void	setMomentum (const CLHEP::HepLorentzVector &p, const int flag=KFitConst::kBeforeFit)
	Set a Lorentz vector of the track. More...

void	setPosition (const HepPoint3D &x, const int flag=KFitConst::kBeforeFit)
	Set a position of the track. More...

void	setError (const CLHEP::HepSymMatrix &e, const int flag=KFitConst::kBeforeFit)
	Set an error matrix of the track. More...

void	setCharge (const double q)
	Set a charge of the track. More...

void	setVertex (const HepPoint3D &v)
	Set a vertex position associated to the track. More...

void	setVertexError (const CLHEP::HepSymMatrix &ve)
	Set a vertex error matrix associated to the track. More...

const CLHEP::HepLorentzVector	getMomentum (const int flag=KFitConst::kAfterFit) const
	Get a Lorentz vector of the track. More...

const HepPoint3D	getPosition (const int flag=KFitConst::kAfterFit) const
	Get a position of the track. More...

const CLHEP::HepSymMatrix	getError (const int flag=KFitConst::kAfterFit) const
	Get an error matrix of the track. More...

double	getCharge (void) const
	Get a charge of the track.

double	getMass (void) const
	Get a mass of the track.

const HepPoint3D	getVertex (void) const
	Get a vertex position associated to the track.

const CLHEP::HepSymMatrix	getVertexError (void) const
	Get a vertex error matrix associated to the track.

double	getFitParameter (const int which, const int flag) const
	Get a parameter of the track. More...

const CLHEP::HepMatrix	getFitParameter (const int flag) const
	Get a parameter set of the track. More...

const CLHEP::HepSymMatrix	getFitError (const int flag) const
	Get an error matrix of the track. More...

const CLHEP::HepMatrix	getMomPos (const int flag) const
	Get a combination of Lorentz vector and position of the track. More...

Private Member Functions
void	checkFlag (const int flag) const
	Check if the flag is one of KFitConst::kBeforeFit or KFitConst::kAfterFit. More...

void	checkMatrixDimension (const CLHEP::HepSymMatrix &m, const int dim) const
	Check if the matrix size is intended one. More...

Private Attributes
struct KFitPXE	m_PXEBefore
	Lorentz vector, position, and error matrix of the track before the fit.

struct KFitPXE	m_PXEAfter
	Lorentz vector, position, and error matrix of the track after the fit.

double	m_Charge
	Charge of the track.

double	m_Mass
	Mass of the track.

HepPoint3D	m_Vertex
	Vertex position associated to the track.

CLHEP::HepSymMatrix	m_VertexError
	Vertex error matrix associated to the track.

Detailed Description

KFitTrack is a container of the track information (Lorentz vector, position, and error matrix), and a set of macro functions to set/get the contents.

Definition at line 38 of file KFitTrack.h.

Constructor & Destructor Documentation

◆ KFitTrack()

KFitTrack	(	const CLHEP::HepLorentzVector &	p,
		const HepPoint3D &	x,
		const CLHEP::HepSymMatrix &	e,
		const double	q,
		const int	flag = `KFitConst::kBeforeFit`
	)

Construct the object with track properties.

Parameters

p	Lorentz vector of the track
x	position of the track
e	(7x7) error matrix of the track
q	charge of the track
flag	KFitConst::kBeforeFit or KFitConst::kAfterFit

Member Function Documentation

◆ checkFlag()

void checkFlag ( const int flag ) const

inlineprivate

Check if the flag is one of KFitConst::kBeforeFit or KFitConst::kAfterFit.

If check fails, abort the program.

Parameters

flag

Definition at line 164 of file KFitTrack.h.

       {
         if (flag != KFitConst::kBeforeFit && flag != KFitConst::kAfterFit) B2FATAL("checkFlag");
       }

◆ checkMatrixDimension()

void checkMatrixDimension	(	const CLHEP::HepSymMatrix &	m,
		const int	dim
	)		const

inlineprivate

Check if the matrix size is intended one.

If check fails, abort the program.

Parameters

m	matrix to be tested
dim	size of the matrix

Definition at line 173 of file KFitTrack.h.

◆ getError()

const HepSymMatrix getError ( const int flag = KFitConst::kAfterFit ) const

Get an error matrix of the track.

Parameters

flag	KFitConst::kBeforeFit or KFitConst::kAfterFit

Returns: error matrix of the track

Definition at line 172 of file KFitTrack.cc.

 {
   checkFlag(flag);
   return flag == KFitConst::kBeforeFit ? m_PXEBefore.m_E : m_PXEAfter.m_E;
 }

◆ getFitError()

const HepSymMatrix getFitError ( const int flag ) const

Get an error matrix of the track.

Not intended for end user's use.

Parameters

flag	KFitConst::kBeforeFit or KFitConst::kAfterFit

Returns: fitted error matrix

Definition at line 246 of file KFitTrack.cc.

◆ getFitParameter() [1/2]

const HepMatrix getFitParameter ( const int flag ) const

Get a parameter set of the track.

Not intended for end user's use.

Parameters

flag	KFitConst::kBeforeFit or KFitConst::kAfterFit

Returns: array of getFitParameter(0,flag) ... getFitParameter(5,flag)

Definition at line 234 of file KFitTrack.cc.

◆ getFitParameter() [2/2]

double getFitParameter	(	const int	which,
		const int	flag
	)		const

Get a parameter of the track.

Not intended for end user's use.

Parameters

which	(0,1,2,3,4,5) = (Px,Py,Pz,Xx,Xy,Xz)
flag	KFitConst::kBeforeFit or KFitConst::kAfterFit

Returns: corresponding parameter

Definition at line 208 of file KFitTrack.cc.

◆ getMomentum()

const HepLorentzVector getMomentum ( const int flag = KFitConst::kAfterFit ) const

Get a Lorentz vector of the track.

Parameters

flag	KFitConst::kBeforeFit or KFitConst::kAfterFit

Returns: Lorentz vector of the track

Definition at line 156 of file KFitTrack.cc.

◆ getMomPos()

const HepMatrix getMomPos ( const int flag ) const

Get a combination of Lorentz vector and position of the track.

Not intended for end user's use.

Parameters

flag	KFitConst::kBeforeFit or KFitConst::kAfterFit

Returns: combination of Lorentz vector and position

Definition at line 272 of file KFitTrack.cc.

◆ getPosition()

const HepPoint3D getPosition ( const int flag = KFitConst::kAfterFit ) const

Get a position of the track.

Parameters

flag	KFitConst::kBeforeFit or KFitConst::kAfterFit

Returns: position of the track

Definition at line 164 of file KFitTrack.cc.

◆ setCharge()

void setCharge ( const double q )

Set a charge of the track.

Parameters

q	charge of the track

Definition at line 134 of file KFitTrack.cc.

◆ setError()

void setError	(	const CLHEP::HepSymMatrix &	e,
		const int	flag = `KFitConst::kBeforeFit`
	)

Set an error matrix of the track.

Parameters

e	error matrix of the track
flag	KFitConst::kBeforeFit or KFitConst::kAfterFit

Definition at line 121 of file KFitTrack.cc.

◆ setMomentum()

void setMomentum	(	const CLHEP::HepLorentzVector &	p,
		const int	flag = `KFitConst::kBeforeFit`
	)

Set a Lorentz vector of the track.

Parameters

p	Lorentz vector of the track
flag	KFitConst::kBeforeFit or KFitConst::kAfterFit

Definition at line 95 of file KFitTrack.cc.

◆ setPosition()

void setPosition	(	const HepPoint3D &	x,
		const int	flag = `KFitConst::kBeforeFit`
	)

Set a position of the track.

Parameters

x	position of the track
flag	KFitConst::kBeforeFit or KFitConst::kAfterFit

Definition at line 109 of file KFitTrack.cc.

◆ setVertex()

void setVertex ( const HepPoint3D & v )

Set a vertex position associated to the track.

Parameters

v	vertex position associated to the track

Definition at line 141 of file KFitTrack.cc.

◆ setVertexError()

void setVertexError ( const CLHEP::HepSymMatrix & ve )

Set a vertex error matrix associated to the track.

Parameters

ve	vertex error matrix associated to the track

Definition at line 148 of file KFitTrack.cc.

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

analysis/VertexFitting/KFit/include/KFitTrack.h
analysis/VertexFitting/KFit/src/KFitTrack.cc

Classes

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ KFitTrack()

Member Function Documentation

◆ checkFlag()

◆ checkMatrixDimension()

◆ getError()

◆ getFitError()

◆ getFitParameter() [1/2]

◆ getFitParameter() [2/2]

◆ getMomentum()

◆ getMomPos()

◆ getPosition()

◆ setCharge()

◆ setError()

◆ setMomentum()

◆ setPosition()

◆ setVertex()

◆ setVertexError()