PXDRecoHit - an extended form of PXDCluster containing geometry information. More...

#include <PXDRecoHit.h>

Inheritance diagram for PXDRecoHit:

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Collaboration diagram for PXDRecoHit:

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Public Member Functions
	PXDRecoHit ()
	Default constructor for ROOT IO.

	PXDRecoHit (const PXDTrueHit hit, const genfit::TrackCandHit trackCandHit=NULL, float sigmaU=-1, float sigmaV=-1)
	Construct PXDRecoHit from a PXDTrueHit for Monte Carlo based tracking. More...

	PXDRecoHit (const PXDCluster *hit, float sigmaU, float sigmaV, float covUV)
	Construct PXDRecoHit from a PXD cluster. More...

	PXDRecoHit (const PXDCluster hit, const genfit::TrackCandHit trackCandHit=NULL)
	Construct PXDRecoHit from a PXD cluster This constructor is intended as a temporary solution for people who want to test the impact of realistic clusters right now using the current tracking stack and before the final error handling is implemented. More...

genfit::AbsMeasurement *	clone () const override
	Creating a deep copy of this hit.

virtual std::vector< genfit::MeasurementOnPlane * >	constructMeasurementsOnPlane (const genfit::StateOnPlane &state) const override
	Methods that actually interface to Genfit. More...

VxdID	getSensorID () const
	Get the compact ID.

const PXDTrueHit *	getTrueHit () const
	Get pointer to the TrueHit used when creating this RecoHit, can be NULL if created from something else.

const PXDCluster *	getCluster () const
	Get pointer to the Cluster used when creating this RecoHit, can be NULL if created from something else.

float	getU () const
	Get u coordinate.

float	getV () const
	Get v coordinate.

float	getUVariance () const
	Get u coordinate variance.

float	getVVariance () const
	Get v coordinate variance.

float	getUVCov () const
	Get u-v error covariance.

float	getEnergyDep () const
	Get deposited energy.

float	getShapeLikelyhood (const genfit::StateOnPlane &state) const
	Get deposited energy error. More...

virtual const genfit::AbsHMatrix *	constructHMatrix (const genfit::AbsTrackRep *) const override
	Construct the hessian matrix.

int	getPlaneId () const

virtual SharedPlanePtr	constructPlane (const StateOnPlane &state) const override
	Construct (virtual) detector plane (use state's AbsTrackRep). More...

virtual void	setPlane (const SharedPlanePtr &physicalPlane, int planeId=-1)

void	setStripV (bool v=true)
	Use if the coordinate for 1D hits measured in V direction. More...

TrackPoint *	getTrackPoint () const

void	setTrackPoint (TrackPoint *tp)

const TVectorD &	getRawHitCoords () const

TVectorD &	getRawHitCoords ()

const TMatrixDSym &	getRawHitCov () const

TMatrixDSym &	getRawHitCov ()

int	getDetId () const

int	getHitId () const

virtual bool	isLeftRightMeasurement () const
	If the AbsMeasurement is a wire hit, the left/right resolution will be used.

virtual int	getLeftRightResolution () const

unsigned int	getDim () const

void	setRawHitCoords (const TVectorD &coords)

void	setRawHitCov (const TMatrixDSym &cov)

void	setDetId (int detId)

void	setHitId (int hitId)

virtual void	Print (const Option_t *="") const

Protected Attributes
SharedPlanePtr	physicalPlane_

int	planeId_
	This is persistent, but '!' makes ROOT shut up.

bool	stripV_

TVectorD	rawHitCoords_

TMatrixDSym	rawHitCov_

int	detId_

int	hitId_

TrackPoint *	trackPoint_
	Pointer to TrackPoint where the measurement belongs to.

Private Types
enum	{ HIT_DIMENSIONS = 2 }

Private Member Functions
void	setDetectorPlane ()
	Set up Detector plane information.

TVectorD	applyPlanarDeformation (TVectorD hitCoords, std::vector< double > planarParameters, const genfit::StateOnPlane &state) const
	Apply planar deformation of sensors.

Private Attributes
unsigned short	m_sensorID
	Unique sensor identifier.

const PXDTrueHit *	m_trueHit
	Pointer to the TrueHit used when creating this object.

const PXDCluster *	m_cluster
	transient member (not written out during streaming) More...

float	m_energyDep
	transient member (not written out during streaming) More...

Detailed Description

PXDRecoHit - an extended form of PXDCluster containing geometry information.

To create a list of PXDRecoHits for all PXDTrueHits belonging to one MCParticle do something like:

//Get the MCParticle in question
MCParticle* mcParticle = ...
//Assume some error on the position
float sigmaU = 10 * Unit::um;
float sigmaV = 15 * Unit::um;
 
//Iterate over the relation and create a list of hits
vector<PXDRecoHit*> hits;
RelationIndex<MCParticle,PXDTrueHit> relMCTrueHit;
RelationIndex<MCParticle,PXDTrueHit>::range_from it = relMCTrueHit.getElementsFrom(mcParticle);
for(; it.first!=it.second; ++it.first){
  hits.push_back(new PXDRecoHit(it.first->to, sigmaU, sigmaV));
}

Definition at line 49 of file PXDRecoHit.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

private

Enumerator
HIT_DIMENSIONS	sensitive Dimensions of the Hit

Definition at line 134 of file PXDRecoHit.h.

Constructor & Destructor Documentation

◆ PXDRecoHit() [1/3]

PXDRecoHit	(	const PXDTrueHit *	hit,
		const genfit::TrackCandHit *	trackCandHit = `NULL`,
		float	sigmaU = `-1`,
		float	sigmaV = `-1`
	)

explicit

Construct PXDRecoHit from a PXDTrueHit for Monte Carlo based tracking.

This requires a valid random number generator to be initialized at gRandom. The Hit position will be smeared using a gaussian smearing with sigmaU and sigmaV along u and v respectively

If one of the errors is set <0, a default resolution will be assumed for both values by dividing the pixel size by sqrt(12).

Parameters

hit	PXDTrueHit to use as base
trackCandHit	actually not used, should be removed?
sigmaU	Error of the Hit along u
sigmaV	Error of the Hit along v

Definition at line 32 of file PXDRecoHit.cc.

◆ PXDRecoHit() [2/3]

PXDRecoHit	(	const PXDCluster *	hit,
		float	sigmaU,
		float	sigmaV,
		float	covUV
	)

explicit

Construct PXDRecoHit from a PXD cluster.

For users that want to supply their own errors on construction

Parameters

hit	PXDCluster to use as base
sigmaU	Error of the Hit along u
sigmaV	Error of the Hit along v
covUV	Covariance between u and v

Definition at line 62 of file PXDRecoHit.cc.

◆ PXDRecoHit() [3/3]

PXDRecoHit	(	const PXDCluster *	hit,
		const genfit::TrackCandHit *	trackCandHit = `NULL`
	)

explicit

Construct PXDRecoHit from a PXD cluster This constructor is intended as a temporary solution for people who want to test the impact of realistic clusters right now using the current tracking stack and before the final error handling is implemented.

The pitch / sqrt(12) will be added as measurement error estimation. This is of course not the exact error of the cluster and one cannot expect perfect tracking results when using this constructor

Parameters

hit	PXDCluster to use as base
trackCandHit	actually not used, should be removed?

Definition at line 87 of file PXDRecoHit.cc.

Member Function Documentation

◆ constructMeasurementsOnPlane()

std::vector< genfit::MeasurementOnPlane * > constructMeasurementsOnPlane ( const genfit::StateOnPlane & state ) const

overridevirtual

Methods that actually interface to Genfit.

Reimplemented from PlanarMeasurement.

Definition at line 192 of file PXDRecoHit.cc.

◆ constructPlane()

SharedPlanePtr constructPlane ( const StateOnPlane & state ) const

overridevirtualinherited

Construct (virtual) detector plane (use state's AbsTrackRep).

It's possible to make corrections to the plane here. The state should be defined somewhere near the measurement. For virtual planes, the state will be extrapolated to the POCA to point (SpacepointMeasurement) or line (WireMeasurement), and from this info the plane will be constructed.

Implements AbsMeasurement.

Definition at line 46 of file PlanarMeasurement.cc.

◆ getShapeLikelyhood()

float getShapeLikelyhood ( const genfit::StateOnPlane & state ) const

Get deposited energy error.

Get the likelyhood that cluster shape is likely to be created from track state.

Definition at line 137 of file PXDRecoHit.cc.

◆ setStripV()

void setStripV ( bool v = true )

inlineinherited

Use if the coordinate for 1D hits measured in V direction.

Per default for 1D planar hits, the coordinate is measured in U direction. With this function you can set it to be measured in V direction. This affects the outcoe of constructHMatrix().

Definition at line 70 of file PlanarMeasurement.h.

Member Data Documentation

◆ m_cluster

const PXDCluster* m_cluster

private

transient member (not written out during streaming)

Pointer to the Cluster used when creating this object

Definition at line 140 of file PXDRecoHit.h.

◆ m_energyDep

float m_energyDep

private

transient member (not written out during streaming)

deposited energy.

Definition at line 141 of file PXDRecoHit.h.

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

pxd/reconstruction/include/PXDRecoHit.h
pxd/reconstruction/src/PXDRecoHit.cc

Public Member Functions

Protected Attributes

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Enumeration Documentation

◆ anonymous enum

Constructor & Destructor Documentation

◆ PXDRecoHit() [1/3]

◆ PXDRecoHit() [2/3]

◆ PXDRecoHit() [3/3]

Member Function Documentation

◆ constructMeasurementsOnPlane()

◆ constructPlane()

◆ getShapeLikelyhood()

◆ setStripV()

Member Data Documentation

◆ m_cluster

◆ m_energyDep