: Class representing a cluster of hits that arise from the same deposition of charge in space. Or at least, that is the assumtion that underlies the math in the class. More...

#include <AtHitClusterFull.h>

Inheritance diagram for AtHitClusterFull:

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Collaboration diagram for AtHitClusterFull:

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Public Member Functions
	AtHitClusterFull ()

	AtHitClusterFull (const AtHitClusterFull &cluster)=default

virtual	~AtHitClusterFull ()=default

virtual std::unique_ptr< AtHit >	Clone () override

virtual void	AddHit (const AtHit &hit) override
	Add hit to cluster. More...

XYZPoint	GetPositionUnWeighted () const

TMatrixDSym	GetCovMatrixFull () const

TMatrixDSym	GetCovMatrixCharge () const

TMatrixDSym	GetCovMatrixNoWeight () const

	ClassDefOverride (AtHitClusterFull, 1)

Public Member Functions inherited from AtHitCluster
	AtHitCluster ()

	AtHitCluster (const AtHitCluster &cluster)=default

virtual	~AtHitCluster ()=default

void	SetCovMatrix (TMatrixDSym matrix)

void	SetCovMatrix (int i, int j, double val)
	Sets the cov[i,j] = cov[j,i] = val. More...

virtual void	SetPositionVariance (const XYZVector &vec) override

void	SetLength (Double_t length)

void	SetClusterID (Int_t id)

Double_t	GetLength () const

XYZPoint	GetPositionCharge () const

const TMatrixDSym &	GetCovMatrix () const

const TMatrixDSym &	GetCovNumerator () const

Int_t	GetClusterID () const

Int_t	GetClusterSize () const

Public Member Functions inherited from AtHit
	AtHit (Int_t hitID=-1)

	AtHit (Int_t padNum, XYZPoint location, Double_t charge)

	AtHit (Int_t hitID, Int_t padNum, XYZPoint location, Double_t charge)

	AtHit (const AtHit &)=default

	AtHit (AtHit &&)=default

AtHit &	operator= (const AtHit &)=default

AtHit &	operator= (AtHit &&)=default

virtual	~AtHit ()=default

H5::CompType	GetHDF5Type ()
	Returns the type specification of a hit. More...

void	SetCharge (Double_t charge)

void	SetChargeVariance (Double_t chargeVar)

void	SetPosition (const XYZPoint &pos)

void	SetHitID (Int_t hitID)

void	SetPadNum (Int_t padNum)

void	SetTraceIntegral (Double_t integral)

void	SetHitMult (Int_t HitMult)

void	SetTimeStamp (Int_t Time)

void	SetTimeStampCorr (Double_t TimeCorr)

void	SetTimeStampCorrInter (Double_t TimeCorrInter)

void	AddMCSimPoint (const AtHit::MCSimPoint &point)

Int_t	GetHitID () const

const XYZPoint &	GetPosition () const

const XYZVector &	GetPositionVariance () const

XYZVector	GetPositionSigma () const

Double_t	GetCharge () const

Int_t	GetPadNum () const

Double_t	GetTraceIntegral () const

Int_t	GetHitMult () const

Int_t	GetTimeStamp () const

Double_t	GetTimeStampCorr () const

Double_t	GetTimeStampCorrInter () const

const std::vector< AtHit::MCSimPoint > &	GetMCSimPointArray () const

	ClassDef (AtHit, 5)

Protected Attributes
std::vector< AtHit >	fHits

Protected Attributes inherited from AtHitCluster
Int_t	fClusterID {-1}

TMatrixDSym	fCovMatrix {3}

TMatrixDSym	fCovNumerator {3}

XYZVector	fTotalWeight {0, 0, 0}

XYZVector	fTotalWeight2 {0, 0, 0}

XYZVector	fWeight {0, 0, 0}

XYZPoint	fPositionCharge {0, 0, 0}

XYZPoint	fPositionChargeOld {0, 0, 0}

XYZVector	fPositionOld {0, 0, 0}

Double_t	fLength {-999}

Int_t	fClusterSize {0}

Protected Attributes inherited from AtHit
Double_t	fCharge

Double_t	fChargeVariance {0}

XYZPoint	fPosition

XYZVector	fPositionVariance {}

Int_t	fHitID

Int_t	fPadNum

Double_t	fTraceIntegral {-1}

Int_t	fHitMult {1}

Int_t	fTimeStamp {0}

Double_t	fTimeStampCorr {0}

Double_t	fTimeStampCorrInter {0}

std::vector< AtHit::MCSimPoint >	fMCSimPointArray

Additional Inherited Members
Public Types inherited from AtHit
using	XYZPoint = ROOT::Math::XYZPoint

using	XYZVector = ROOT::Math::XYZVector

Static Public Member Functions inherited from AtHit
static Bool_t	SortHit (const AtHit &lhs, const AtHit &rhs)

static Bool_t	SortHit (const std::unique_ptr< AtHit > &lhs, const std::unique_ptr< AtHit > &rhs)

static Bool_t	SortHitTimePtr (const std::unique_ptr< AtHit > &lhs, const std::unique_ptr< AtHit > &rhs)

static Bool_t	SortHitTime (const AtHit &lhs, const AtHit &rhs)

Protected Member Functions inherited from AtHitCluster
template<class A , class B >
XYZVector	ElementMult (const A &a, const B &b)

template<class A , class B >
XYZVector	ElementDiv (const A &a, const B &b)

template<class T >
T	ElementInvert (const T &b)

void	updateWeightsAndCharge (const AtHit &hit)

void	updatePosition (const AtHit &hit)

void	updateCovariance (const AtHit &hit)

	ClassDefOverride (AtHitCluster, 4)

Detailed Description

: Class representing a cluster of hits that arise from the same deposition of charge in space. Or at least, that is the assumtion that underlies the math in the class.

In addition to the information tracked by AtHitCluster, it also saves a copy of every hit that is part of the cluster. This allows for a larger number of estimates of the variance and covariance to be calcualted.

Three estimates of the mean are stored in the cluster: fPosition is the position using the full information(charge and hit position variance). fPositionCharge is the position from just charge weighting. fPositionUnweighted is the position without any weighting applied.

There are four estimates of the covariances accessable: GetCovMatrix() returns the best online covariance matrix described above (same as AtHitCluster). GetCovMatrixFull() returns the covariance matrix using fPositionFull and charge weighting. There is no special treatment of the variance. GetCovMatrixCharge() returns a simple charge weighted covariance matrix using fPositionCharge. GetCovMatrixNoWeight() returns a covariance matrix using fPosition and no weighting.

Definition at line 38 of file AtHitClusterFull.h.

Constructor & Destructor Documentation

◆ AtHitClusterFull() [1/2]

AtHitClusterFull::AtHitClusterFull ( )

inline

Definition at line 43 of file AtHitClusterFull.h.

◆ AtHitClusterFull() [2/2]

AtHitClusterFull::AtHitClusterFull ( const AtHitClusterFull & cluster )

default

◆ ~AtHitClusterFull()

virtual AtHitClusterFull::~AtHitClusterFull ( )

virtualdefault

Member Function Documentation

◆ AddHit()

void AtHitClusterFull::AddHit ( const AtHit & hit )

overridevirtual

Add hit to cluster.

Adds a hit, updating the clusters position and charge. As well as the covariance matrix. The variance is updated using the charge-weighted variance of the passed hit. The off diagonal elements of the covariance matrix are updated according to the "standard" textbook definition of the covariance matrix $COV_{x,y} = \frac{\Sigma_i^N (x_i - \hat{x})(y_i - \hat{y})}{N-1}$ .

The on diagonal elements of the covariance matrix (i.e. the variance) are updated assuming both a charge weighting, and a "reliablility" weighting from the variance in the position of the hits used to construct the hit cluster.

Reimplemented from AtHitCluster.

Definition at line 11 of file AtHitClusterFull.cxx.

◆ ClassDefOverride()

AtHitClusterFull::ClassDefOverride	(	AtHitClusterFull	,
		1
	)

◆ Clone()

virtual std::unique_ptr<AtHit> AtHitClusterFull::Clone ( )

overridevirtual

Reimplemented from AtHitCluster.

◆ GetCovMatrixCharge()

TMatrixDSym AtHitClusterFull::GetCovMatrixCharge ( ) const

Definition at line 45 of file AtHitClusterFull.cxx.

◆ GetCovMatrixFull()

TMatrixDSym AtHitClusterFull::GetCovMatrixFull ( ) const

Definition at line 63 of file AtHitClusterFull.cxx.

◆ GetCovMatrixNoWeight()

TMatrixDSym AtHitClusterFull::GetCovMatrixNoWeight ( ) const

Definition at line 27 of file AtHitClusterFull.cxx.

◆ GetPositionUnWeighted()

AtHit::XYZPoint AtHitClusterFull::GetPositionUnWeighted ( ) const

Definition at line 17 of file AtHitClusterFull.cxx.

Member Data Documentation

◆ fHits

std::vector<AtHit> AtHitClusterFull::fHits

protected

Definition at line 40 of file AtHitClusterFull.h.

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

/github/workspace/AtData/AtHitClusterFull.h
/github/workspace/AtData/AtHitClusterFull.cxx

Public Member Functions

Protected Attributes

Additional Inherited Members