TimePix pixel segment. More...

#include <TimePixLocalRoadSearchProcessor.h>

Public Member Functions
	tp_PixelSegment (const int, const int, const double, macroPixelListType &)
	Construct TimePix pixel segment. More...

	~tp_PixelSegment ()
	Destructor. More...

void	print () const
	Print. More...

int	getNumPar () const
	Get number of parameters. More...

int	getLevel () const
	Get level. More...

double	getChi2 () const
	Get Chi2/Ndf. More...

int	getNdf () const
	Get Chi2/Ndf. More...

double	getLength () const
	Get length. More...

void	getRefPoint (double *) const
	Get reference point. More...

void	getPar (double *) const
	Get (all five helix) parameters from segment fit. More...

const TVectorD &	getPar () const
	Get parameter vector. More...

const TMatrixDSym &	getCov () const
	Get covariance matrix. More...

bool	match (tp_PixelSegment *, const double, const double) const

macroPixelListType	getMacroPixels () const
	Get macro pixels. More...

void	getLCIOStateAtRefPoint (const double *, TVectorD &, TMatrixDSym &) const
	Get segment state at reference point. More...

Private Attributes
const int	_segId
	segment ID More...

const int	_level
	segment level More...

const double	_bzc
	magnetic field strength (Bz*c) More...

const int	_npar
	number of parameters (5: helix, 4: line) More...

macroPixelListType	_macroPixels
	macro pixels More...

double	_refX
	X of reference point. More...

double	_refY
	Y of reference point. More...

double	_refZ
	Z of reference point. More...

double	_length
	segment (arc) length More...

int	_ndf
	number of degrees of freedom of segment fit More...

double	_chi2
	chi2 from segment fit More...

TVectorD	_parameters
	parameter vector More...

TMatrixDSym	_covariance
	covariance matrix More...

Detailed Description

TimePix pixel segment.

Definition at line 260 of file TimePixLocalRoadSearchProcessor.h.

Constructor & Destructor Documentation

◆ tp_PixelSegment()

marlintpc::tp_PixelSegment::tp_PixelSegment	(	const int	segId,
		const int	level,
		const double	Bzc,
		macroPixelListType &	macroPixels
	)

Construct TimePix pixel segment.

Parameters

[in]	segId	segment ID
[in]	level	level
[in]	Bzc	Bz*c
[in]	macroPixels	list of macro pixels

int nParZS;

Definition at line 844 of file TimePixLocalRoadSearchProcessor.cc.

References _chi2, _covariance, _length, _ndf, _npar, _parameters, _refX, _refY, _refZ, marlintpc::simpleFitXY::addPoint(), marlintpc::simpleFitZS::addPoint(), marlintpc::simpleFitXY::fit(), marlintpc::simpleFitZS::fit(), marlintpc::simpleHelix::getArcLengthXY(), marlintpc::simpleFitXY::getCov(), marlintpc::simpleFitZS::getCov(), marlintpc::simpleFitXY::getPar(), and marlintpc::simpleFitZS::getPar().

◆ ~tp_PixelSegment()

marlintpc::tp_PixelSegment::~tp_PixelSegment ( )

Destructor.

Definition at line 910 of file TimePixLocalRoadSearchProcessor.cc.

References _macroPixels.

Member Function Documentation

◆ getChi2()

double marlintpc::tp_PixelSegment::getChi2 ( ) const

Get Chi2/Ndf.

Definition at line 932 of file TimePixLocalRoadSearchProcessor.cc.

References _chi2.

◆ getCov()

const TMatrixDSym & marlintpc::tp_PixelSegment::getCov ( ) const

Get covariance matrix.

Definition at line 977 of file TimePixLocalRoadSearchProcessor.cc.

References _covariance.

Referenced by getLCIOStateAtRefPoint(), and match().

◆ getLCIOStateAtRefPoint()

void marlintpc::tp_PixelSegment::getLCIOStateAtRefPoint	(	const double *	refPos,
		TVectorD &	newPar,
		TMatrixDSym &	newCov
	)		const

Get segment state at reference point.

Propagate track state at point and transform from helix to LCIO representation.

Parameters

[in]	refPos	reference point (X coordinate)
[out]	newPar	parameter vector
[out]	newCov	covariance matrix

Definition at line 995 of file TimePixLocalRoadSearchProcessor.cc.

References _bzc, _npar, getCov(), getPar(), getRefPoint(), marlintpc::simpleHelix::getStateAt(), and marlintpc::simpleHelix::helixToLCIOJacobian().

◆ getLength()

double marlintpc::tp_PixelSegment::getLength ( ) const

Get length.

Definition at line 927 of file TimePixLocalRoadSearchProcessor.cc.

References _length.

Referenced by match().

◆ getLevel()

int marlintpc::tp_PixelSegment::getLevel ( ) const

Get level.

Definition at line 947 of file TimePixLocalRoadSearchProcessor.cc.

References _level.

◆ getMacroPixels()

macroPixelListType marlintpc::tp_PixelSegment::getMacroPixels ( ) const

Get macro pixels.

Definition at line 982 of file TimePixLocalRoadSearchProcessor.cc.

References _macroPixels.

◆ getNdf()

int marlintpc::tp_PixelSegment::getNdf ( ) const

Get Chi2/Ndf.

Definition at line 937 of file TimePixLocalRoadSearchProcessor.cc.

References _ndf.

◆ getNumPar()

int marlintpc::tp_PixelSegment::getNumPar ( ) const

Get number of parameters.

Definition at line 942 of file TimePixLocalRoadSearchProcessor.cc.

References _npar.

◆ getPar() [1/2]

void marlintpc::tp_PixelSegment::getPar ( double * par ) const

Get (all five helix) parameters from segment fit.

Parameters

[out] par helix parameter (curvature is zero for Bz*c = 0.)

Definition at line 965 of file TimePixLocalRoadSearchProcessor.cc.

References _npar, and _parameters.

Referenced by match().

◆ getPar() [2/2]

const TVectorD & marlintpc::tp_PixelSegment::getPar ( ) const

Get parameter vector.

Definition at line 972 of file TimePixLocalRoadSearchProcessor.cc.

References _parameters.

Referenced by getLCIOStateAtRefPoint(), and match().

◆ getRefPoint()

void marlintpc::tp_PixelSegment::getRefPoint ( double * position ) const

Get reference point.

Parameters

[out] position position of reference point

Definition at line 955 of file TimePixLocalRoadSearchProcessor.cc.

References _refX, _refY, and _refZ.

Referenced by getLCIOStateAtRefPoint(), and match().

◆ match()

bool marlintpc::tp_PixelSegment::match	(	tp_PixelSegment *	seg,
		const double	chi2Cut,
		const double	distCut
	)		const

Compare the (4 (line) or 5 (helix)) track parameters (at the mid point). The segments must not overlap (in rows) and the (row) gap must be smaller than the average length.

Parameters