Class representing an oriented hit wire including a hypotheses whether the causing track passes left or right. More...

#include <CDCRLWireHit.h>

Collaboration diagram for CDCRLWireHit:

[legend]

Public Member Functions
	CDCRLWireHit ()=default
	Default constructor for ROOT.

	CDCRLWireHit (const CDCWireHit *wireHit, ERightLeft rlInfo=ERightLeft::c_Unknown)
	Constructs an oriented wire hit with unknown left right passage information. More...

	CDCRLWireHit (const CDCWireHit *wireHit, ERightLeft rlInfo, double driftLength, double driftLengthVariance)
	Constructs an oriented wire hit. More...

CDCRLWireHit	reversed () const
	Returns the oriented wire hit with the opposite right left information.

void	reverse ()
	Swiches the right left passage to its opposite inplace.

CDCRLWireHit	getAlias () const
	Returns the aliased version of this oriented wire hit - here same as reverse.

bool	operator== (const CDCRLWireHit &rhs) const
	Equality comparison based on wire hit, left right passage information.

bool	operator< (const CDCRLWireHit &rhs) const
	Total ordering relation based on wire hit and left right passage information in this order of importance.

	operator const Belle2::CDCHit * () const
	Make the wire hit automatically castable to its underlying cdcHit.

const CDCHit *	getHit () const
	Getter for the CDCHit pointer into the StoreArray.

const CDCWire &	getWire () const
	Getter for the wire the oriented hit associated to.

bool	isOnWire (const CDCWire &wire) const
	Checks if the oriented hit is associated with the give wire.

const WireID &	getWireID () const
	Getter for the WireID of the wire the hit is located on.

ISuperLayer	getISuperLayer () const
	Getter for the superlayer id.

EStereoKind	getStereoKind () const
	Getter for the stereo type of the underlying wire.

bool	isAxial () const
	Indicator if the underlying wire is axial.

const Vector2D &	getRefPos2D () const
	The two dimensional reference position of the underlying wire.

double	getRefCylindricalR () const
	The distance from the beam line at reference position of the underlying wire.

const CDCWireHit &	getWireHit () const
	Getter for the wire hit associated with the oriented hit.

bool	hasWireHit (const CDCWireHit &wirehit) const
	Checks if the oriented hit is associated with the give wire hit.

double	getRefDriftLength () const
	Getter for the drift length at the reference position of the wire.

void	setRefDriftLength (double driftLength)
	Setter for the drift length at the reference position of the wire.

double	getSignedRefDriftLength () const
	Getter for the drift length at the reference position of the wire.

double	getRefDriftLengthVariance () const
	Getter for the variance of the drift length at the reference position of the wire.

void	setRefDriftLengthVariance (double driftLengthVariance)
	Setter for the variance of the drift length at the reference position of the wire.

ERightLeft	getRLInfo () const
	Getter for the right left passage information.

void	setRLInfo (const ERightLeft rlInfo)
	Setter for the right left passage information.

Vector2D	reconstruct2D (const CDCTrajectory2D &trajectory2D) const
	Reconstructs a position of primary ionisation on the drift circle. More...

Vector3D	reconstruct3D (const CDCTrajectory2D &trajectory2D, double z=0) const
	Attempts to reconstruct a three dimensional position (especially of stereo hits). More...

Static Public Member Functions
static CDCRLWireHit	average (const CDCRLWireHit &rlWireHit1, const CDCRLWireHit &rlWireHit2)
	Constructs the average of two wire hits with right left passage informations. More...

static CDCRLWireHit	average (const CDCRLWireHit &rlWireHit1, const CDCRLWireHit &rlWireHit2, const CDCRLWireHit &rlWireHit3)
	Constructs the average of three wire hits with right left passage informations. More...

static CDCRLWireHit	fromSimHit (const CDCWireHit *wirehit, const CDCSimHit &simhit)
	Constructs an oriented wire hit from a CDCSimHit and the associated wirehit. More...

Private Attributes
const CDCWireHit *	m_wireHit = nullptr
	Memory for the reference to the assiziated wire hit.

ERightLeft	m_rlInfo = ERightLeft::c_Unknown
	Memory for the right left passage information of the oriented wire hit.

double	m_refDriftLength = 0.0
	Memory for the reestimated drift length.

double	m_refDriftLengthVariance = 0.0
	Memory for the reestimated drift length variance.

Friends
bool	operator< (const CDCRLWireHit &rlWireHit, const CDCWire &wire)
	Defines wires and oriented wire hits to be coaligned on the wire on which they are based.

bool	operator< (const CDCWire &wire, const CDCRLWireHit &rlWireHit)
	Defines oriented wire hits and wires to be coaligned on the wire on which they are based.

bool	operator< (const CDCRLWireHit &rlWireHit, const CDCWireHit &wireHit)
	Defines wire hits and oriented wire hits to be coaligned on the wire hit on which they are based.

bool	operator< (const CDCWireHit &wireHit, const CDCRLWireHit &rlWireHit)
	Defines oriented wire hits and wire hits to be coaligned on the wire hit on which they are based.

Detailed Description

Class representing an oriented hit wire including a hypotheses whether the causing track passes left or right.

The right left information is freely setable. More than one CDCRLWireHit can point to one CDCWireHit. For more information see

See also: CDCWireHit.

Definition at line 41 of file CDCRLWireHit.h.

Constructor & Destructor Documentation

◆ CDCRLWireHit() [1/2]

CDCRLWireHit	(	const CDCWireHit *	wireHit,
		ERightLeft	rlInfo = `ERightLeft::c_Unknown`
	)

explicit

Constructs an oriented wire hit with unknown left right passage information.

Parameters

wireHit	The wire hit the oriented hit is associated with.
rlInfo	The right left passage information of the wire relative to the track

Definition at line 43 of file CDCRLWireHit.cc.

   : CDCRLWireHit(wireHit, rlInfo, wireHit->getRefDriftLength(), wireHit->getRefDriftLengthVariance())
 {
 }

◆ CDCRLWireHit() [2/2]

CDCRLWireHit	(	const CDCWireHit *	wireHit,
		ERightLeft	rlInfo,
		double	driftLength,
		double	driftLengthVariance
	)

Constructs an oriented wire hit.

Parameters

wireHit	The wire hit the oriented hit is associated with.
rlInfo	The right left passage information of the wire relative to the track
driftLength	The reestimated drift length
driftLengthVariance	The reestimated drift length variance

Definition at line 48 of file CDCRLWireHit.cc.

Member Function Documentation

◆ average() [1/2]

CDCRLWireHit average	(	const CDCRLWireHit &	rlWireHit1,
		const CDCRLWireHit &	rlWireHit2
	)

static

Constructs the average of two wire hits with right left passage informations.

Takes the average of the estimated drift lengths.

Definition at line 59 of file CDCRLWireHit.cc.

◆ average() [2/2]

CDCRLWireHit average	(	const CDCRLWireHit &	rlWireHit1,
		const CDCRLWireHit &	rlWireHit2,
		const CDCRLWireHit &	rlWireHit3
	)

static

Constructs the average of three wire hits with right left passage informations.

Takes the average of the estimated drift lengths.

Definition at line 81 of file CDCRLWireHit.cc.

◆ fromSimHit()

CDCRLWireHit fromSimHit	(	const CDCWireHit *	wirehit,
		const CDCSimHit &	simhit
	)

static

Constructs an oriented wire hit from a CDCSimHit and the associated wirehit.

This translates the sim hit to an oriented wire hit mainly to be able to compare the reconstructed values from the algorithm with the Monte Carlo information. It merely evaluates, if the true trajectory passes right or left of the wire.

Definition at line 110 of file CDCRLWireHit.cc.

◆ reconstruct2D()

Vector2D reconstruct2D ( const CDCTrajectory2D & trajectory2D ) const

Reconstructs a position of primary ionisation on the drift circle.

The result is the position of closest approach on the drift circle to the trajectory.

All positions and the trajectory are interpreted to lie at z=0. Also the right left passage hypotheses does not play a role in the reconstruction in any way.

Definition at line 164 of file CDCRLWireHit.cc.

◆ reconstruct3D()

Vector3D reconstruct3D	(	const CDCTrajectory2D &	trajectory2D,
		double	z = `0`
	)		const

Attempts to reconstruct a three dimensional position (especially of stereo hits).

This method makes a distinct difference between axial and stereo hits:

Stereo hits are moved out of the reference plane such that the oriented drift circle meets the trajectory in one point. Therefore the left right passage hypothesis has to be taken into account
For axial hits the reconstructed position is ambiguous in the z coordinate. Also the drift circle cannot moved such that it would meet the trajectory. Hence we default to the result of reconstruct2D, which yield the closest approach of the drift circle to the trajectory in the reference plane.

Definition at line 179 of file CDCRLWireHit.cc.

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

tracking/trackFindingCDC/eventdata/hits/include/CDCRLWireHit.h
tracking/trackFindingCDC/eventdata/hits/src/CDCRLWireHit.cc

Public Member Functions

Static Public Member Functions

Private Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ CDCRLWireHit() [1/2]

◆ CDCRLWireHit() [2/2]

Member Function Documentation

◆ average() [1/2]

◆ average() [2/2]

◆ fromSimHit()

◆ reconstruct2D()

◆ reconstruct3D()