A helper class for hit parameter calculation. More...

#include <HitCandidate.h>

Public Member Functions
	HitCandidate (const gear::TPCParameters &tpcParams, double vDrift, EVENT::TrackerPulse *pulse=0)
	The constructor needs a reference to TPCParameters and the dirft velocity Optionally the first pulse can be given. More...

void	addPulse (EVENT::TrackerPulse *)
	Add a pulse to the hit.

void	addDeadPad ()

void	setBoundaryFlag ()
	Manually turn on the boundary flag.

const EVENT::TrackerPulse *	getMaximumPulse () const
	Return the highest pulse in this hit.

double	getCharge ()
	Get the overall charge in the hit.

double	getMaxPulseHeight () const
	Get the maximal pulse heigt in this hit.

const std::vector < EVENT::TrackerPulse * > &	getPulses () const
	Get a vector with the pulses contributing to this hits candidate.

unsigned int	getWidth () const
	Return the number of pulses contributing to this hits candidate. More...

bool	isAtBoundary () const
	Return whether the hit contains pulses on the boundary pads of a module. More...

double	getLocalFixedCoordinate ()
	Get the middle of the pad row (y or r)

double	getLocalFreeCoordinate ()
	Get the coordinate along the pad row (x or phi)

double	getZCoordinate ()
	Get the z coordinate.

double	getLocalFixedVariance ()
	Get the variance (estimated error) perpendicular to the pad row (y or r)

double	getLocalFreeVariance ()
	Get the variance (estimated error) along the pad row (in x or phi)

double	getLocalSkewness ()
	Get the skewness along the pad row.

double	getZVariance ()
	Get the variance (estimated error) in z.

lcio::DoubleVec	getLocalCoordinates ()
	Get the local coordinates (polar or cartesian, depending on the pad plane). More...

lcio::DoubleVec	getGlobalCoordinates ()
	Get the global coordinates (polar or cartesian, depending on the coordinate system). More...

lcio::DoubleVec	getGlobalCartesianCoordinates ()
	Get the global coordinates in cartesian format (in lcio it is always cartesian). More...

lcio::FloatVec	getGlobalCovarianceMatrix ()
	Get the covariance matrix in global coordinates (polar or cartesian, depending on the coordinate system). More...

lcio::FloatVec	getGlobalCartecianCovarianceMatrix ()
	Get the global covariance matrix in cartesian coordinates. More...

IMPL::TrackerHitImpl *	createTrackerHit ()
	Convenience function that allocates a new TrackerHitImpl in memory, sets all parameters and adds the pulses in this HitCandidate.

Protected Member Functions
void	calculateHitProperties ()
	(re)calculate the properties of this hit candidate More...

Protected Attributes
std::vector < EVENT::TrackerPulse * >	_thePulses

EVENT::TrackerPulse *	_maxPulse

double	_maxPulseCharge

int	_numberOfDeadPads

bool	_isAtBoundary

double	_vDrift

double	_zAnode

const gear::TPCParameters &	_tpcParameters

const gear::TPCModule *	_tpcModule

lcio::DoubleVec	_localCoordinates

lcio::DoubleVec	_globalCoordinates

lcio::FloatVec	_globalCovariance

double	_charge

double	_localFixedVariance

double	_localFreeVariance

double	_localSkewness
	The skewness in local coordinates.

double	_zVariance

bool	_hitParametersAreValid

Detailed Description

A helper class for hit parameter calculation.

It contains a vector of pulses and functions to calculate coordinates and errors. This functionality is needed at several places, so it has been decoupled from the processors to avoid code duplication.

Todo:: FIXME: Calculation of covariance matrix is missing, currently is unity. It should be the estimated error of the coordinates, not the varianve of the charge distribution.

Constructor & Destructor Documentation

marlintpc::HitCandidate::HitCandidate	(	const gear::TPCParameters &	tpcParams,
		double	vDrift,
		EVENT::TrackerPulse *	pulse = `0`
	)

The constructor needs a reference to TPCParameters and the dirft velocity Optionally the first pulse can be given.

Member Function Documentation

void marlintpc::HitCandidate::calculateHitProperties ( )

protected

(re)calculate the properties of this hit candidate

Implement calcuclation of errors

Referenced by createTrackerHit(), getCharge(), getGlobalCoordinates(), getGlobalCovarianceMatrix(), getLocalCoordinates(), getLocalFixedCoordinate(), getLocalFixedVariance(), getLocalFreeCoordinate(), getLocalFreeVariance(), getZCoordinate(), and getZVariance().

lcio::FloatVec marlintpc::HitCandidate::getGlobalCartecianCovarianceMatrix ( )

Get the global covariance matrix in cartesian coordinates.

This is what will be in the lcio hit

lcio::DoubleVec marlintpc::HitCandidate::getGlobalCartesianCoordinates ( )

Get the global coordinates in cartesian format (in lcio it is always cartesian).

lcio::DoubleVec marlintpc::HitCandidate::getGlobalCoordinates ( )

Get the global coordinates (polar or cartesian, depending on the coordinate system).

References calculateHitProperties().

lcio::FloatVec marlintpc::HitCandidate::getGlobalCovarianceMatrix ( )

Get the covariance matrix in global coordinates (polar or cartesian, depending on the coordinate system).

References calculateHitProperties().

lcio::DoubleVec marlintpc::HitCandidate::getLocalCoordinates ( )

Get the local coordinates (polar or cartesian, depending on the pad plane).

References calculateHitProperties().

unsigned int marlintpc::HitCandidate::getWidth ( ) const

Return the number of pulses contributing to this hits candidate.

This might not be the real width if there are multiple pulses per channel.

bool marlintpc::HitCandidate::isAtBoundary ( ) const

inline

Return whether the hit contains pulses on the boundary pads of a module.

Currently this flag has to be set manually

Todo:: FIXME: Calculation of boudary condition should be done automatically when adding a pulse

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

HitCandidate.h
HitCandidate.cc

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation