Row based doublet. More...

#include <RowTripletBasedTrackFinderProcessor.h>

Public Member Functions
	rb_Doublet (rb_Hit , rb_Hit )
	Construct row based doublet. More...

bool	match (rb_Hit *, const double, const double) const
	Match doublet with third hit. More...

rb_Hit *	getHit (const int) const
	Get hit. More...

void	getParameters (double &, double &, double &, double &, double &, double &, double &, double &, double &, double &) const
	Get parameters. More...

Private Attributes
rb_Hit *	_hit [2]
	pointers to hits More...

double	_phiMeas
	measurement direction in XY (tangential to row) More...

double	_cosPhi
	cos(_hitPhiMeas) More...

double	_sinPhi
	sin(_hitPhiMeas) More...

double	_xav
	average X coordinate More...

double	_yav
	average Y coordinate More...

double	_zav
	average Z coordinate More...

double	_phi
	XY direction. More...

double	_tanl
	slope in ZS More...

double	_length
	(arc) length More...

double	_cosb
	cos(beta) More...

double	_der2XY
	(dxy/dr)^2 More...

double	_der2Z
	(z/dr)^2 More...

double	_varXY
	variance in XY More...

double	_varZ
	variance in Z More...

Detailed Description

Row based doublet.

Is interpolation from outer hits (of triplet candidate). Has a position (with covariance) and (track and measurement) directions determined from first and last hit in XY and ZS.

Definition at line 176 of file RowTripletBasedTrackFinderProcessor.h.

Constructor & Destructor Documentation

◆ rb_Doublet()

marlintpc::rb_Doublet::rb_Doublet	(	rb_Hit *	hit1,
		rb_Hit *	hit2
	)

Construct row based doublet.

Parameters

[in]	hit1	first hit
[in]	hit2	second hit

Definition at line 626 of file RowTripletBasedTrackFinderProcessor.cc.

References marlintpc::rb_Hit::_cosb, marlintpc::rb_Hit::getPhiMeas(), marlintpc::rb_Hit::getPos(), marlintpc::rb_Hit::getVarXY(), and marlintpc::rb_Hit::getVarZ().

Member Function Documentation

◆ getHit()

rb_Hit * marlintpc::rb_Doublet::getHit ( const int ihit ) const

Get hit.

Parameters

[in] ihit hit index

Returns: hit

Definition at line 717 of file RowTripletBasedTrackFinderProcessor.cc.

Referenced by marlintpc::rb_Triplet::rb_Triplet().

◆ getParameters()

void marlintpc::rb_Doublet::getParameters	(	double &	x,
		double &	y,
		double &	z,
		double &	phiMeas,
		double &	phi,
		double &	dzds,
		double &	ds,
		double &	cosb,
		double &	varXY,
		double &	varZ
	)		const

Get parameters.

Parameters

[out]	x	x position
[out]	y	y position
[out]	z	z position
[out]	phiMeas	XY measurement direction
[out]	phi	XY direction
[out]	dzds	ZS slope
[out]	ds	(arc) length
[out]	cosb	cos(beta) (angle between measurement and normal to flight direction in XY)
[out]	varXY	(combined) XY variance
[out]	varZ	(combined) Z variance