A track fit through a single RP. More...

#include <TotemRPLocalTrack.h>

Classes
class	FittedRecHit

Public Member Functions
void	addHit (unsigned int detId, const FittedRecHit &hit)

double	chiSquared () const

double	chiSquaredOverNDF () const

TMatrixD	covarianceMatrix () const

TVector3	directionVector () const

const edm::DetSetVector< FittedRecHit > &	hits () const

bool	isValid () const

unsigned short	numberOfPointsUsedForFit () const

TVectorD	parameterVector () const

void	setChiSquared (double &chiSquared)

void	setCovarianceMatrix (const TMatrixD &par_covariance_matrix)

void	setParameterVector (const TVectorD &track_params_vector)

void	setValid (bool valid)

void	setZ0 (double z0)

	TotemRPLocalTrack ()

	TotemRPLocalTrack (double z0, const TVectorD &track_params_vector, const TMatrixD &par_covariance_matrix, double chiSquared)

TVector3	trackCentrePoint ()

TVector2	trackPoint (double z) const
	returns (x, y) vector More...

TMatrixD	trackPointInterpolationCovariance (double z) const

double	tx () const

double	txSigma () const

double	ty () const

double	tySigma () const

double	x0 () const

double	x0Sigma () const

double	x0Variance () const

double	y0 () const

double	y0Sigma () const

double	y0Variance () const

double	z0 () const

virtual	~TotemRPLocalTrack ()

Static Public Attributes
static const int	covarianceSize = dimension * dimension

static const int	dimension = 4
	< parameter vector size More...

Private Member Functions
double &	CovarianceMatrixElement (int i, int j)

const double &	CovarianceMatrixElement (int i, int j) const

Private Attributes
double	chiSquared_
	fit chi^2 More...

double	par_covariance_matrix_ [covarianceSize]

edm::DetSetVector< FittedRecHit >	track_hits_vector_

double	track_params_vector_ [dimension]
	track parameters: (x0, y0, tx, ty); x = x0 + tx*(z-z0) ... More...

bool	valid_
	fit valid? More...

double	z0_

Friends
bool	operator< (const TotemRPLocalTrack &l, const TotemRPLocalTrack &r)

Detailed Description

A track fit through a single RP.

x = x0+tx*(z-z0) y = ...

z0 is defined below x any y refer to the global (x, y) system with the beam at (x = 0, y = 0). Only VALID tracks (IsValid()==true) can be later used for physics reconstruction!

Definition at line 30 of file TotemRPLocalTrack.h.

Constructor & Destructor Documentation

◆ TotemRPLocalTrack() [1/2]

TotemRPLocalTrack::TotemRPLocalTrack ( )

inline

Definition at line 71 of file TotemRPLocalTrack.h.

73 {}

◆ TotemRPLocalTrack() [2/2]

TotemRPLocalTrack::TotemRPLocalTrack	(	double	z0,
		const TVectorD &	track_params_vector,
		const TMatrixD &	par_covariance_matrix,
		double	chiSquared
	)

Definition at line 33 of file TotemRPLocalTrack.cc.

     : z0_(z0), chiSquared_(chiSquared), valid_(true) {
   for (int i = 0; i < dimension; ++i) {
     track_params_vector_[i] = track_params_vector[i];
     for (int j = 0; j < dimension; ++j) {
       CovarianceMatrixElement(i, j) = par_covariance_matrix(i, j);
     }
   }

References CovarianceMatrixElement(), dimension, mps_fire::i, dqmiolumiharvest::j, and track_params_vector_.

◆ ~TotemRPLocalTrack()

virtual TotemRPLocalTrack::~TotemRPLocalTrack ( )

inlinevirtual

Definition at line 78 of file TotemRPLocalTrack.h.

80 { return track_params_vector_[0]; }

Member Function Documentation

◆ addHit()

void TotemRPLocalTrack::addHit	(	unsigned int	detId,
		const FittedRecHit &	hit
	)

inline

Definition at line 81 of file TotemRPLocalTrack.h.

                                 { return sqrt(CovarianceMatrixElement(0, 0)); }
   inline double x0Variance() const { return CovarianceMatrixElement(0, 0); }
  

References CovarianceMatrixElement(), and mathSSE::sqrt().

Referenced by TotemRPLocalTrackFitterAlgorithm::fitTrack().

◆ chiSquared()

double TotemRPLocalTrack::chiSquared ( ) const

inline

Definition at line 114 of file TotemRPLocalTrack.h.

114 { return track_hits_vector_.size(); }

References track_hits_vector_.

◆ chiSquaredOverNDF()

double TotemRPLocalTrack::chiSquaredOverNDF ( ) const

inline

Definition at line 117 of file TotemRPLocalTrack.h.

117 {

References z, and z0_.

◆ covarianceMatrix()

TMatrixD TotemRPLocalTrack::covarianceMatrix ( ) const

Definition at line 66 of file TotemRPLocalTrack.cc.

                                                    {
   TMatrixD m(dimension, dimension);
  
   for (int i = 0; i < dimension; ++i)
     for (int j = 0; j < dimension; ++j)
       m(i, j) = CovarianceMatrixElement(i, j);
  
   return m;

References CovarianceMatrixElement(), dimension, mps_fire::i, dqmiolumiharvest::j, and visualization-live-secondInstance_cfg::m.

◆ CovarianceMatrixElement() [1/2]

double& TotemRPLocalTrack::CovarianceMatrixElement	(	int	i,
		int	j
	)

inlineprivate

Definition at line 141 of file TotemRPLocalTrack.h.

◆ CovarianceMatrixElement() [2/2]

const double& TotemRPLocalTrack::CovarianceMatrixElement	(	int	i,
		int	j
	)		const

inlineprivate

Definition at line 139 of file TotemRPLocalTrack.h.

Referenced by addHit(), covarianceMatrix(), setCovarianceMatrix(), TotemRPLocalTrack(), trackPointInterpolationCovariance(), x0(), and x0Sigma().

◆ directionVector()

TVector3 TotemRPLocalTrack::directionVector ( ) const

inline

Definition at line 102 of file TotemRPLocalTrack.h.

109 { return chiSquared_; }

◆ hits()

const edm::DetSetVector<FittedRecHit>& TotemRPLocalTrack::hits ( ) const

inline

Definition at line 80 of file TotemRPLocalTrack.h.

80 { return track_params_vector_[0]; }

References track_params_vector_.

◆ isValid()

bool TotemRPLocalTrack::isValid ( void ) const

inline

Definition at line 132 of file TotemRPLocalTrack.h.

133 :

134 inline const double &CovarianceMatrixElement(int i, int j) const { return par_covariance_matrix_[i * dimension + j]; }

Referenced by ntupleDataFormat._Object::_checkIsValid(), and core.AutoHandle.AutoHandle::ReallyLoad().

◆ numberOfPointsUsedForFit()

unsigned short TotemRPLocalTrack::numberOfPointsUsedForFit ( ) const

inline

Definition at line 119 of file TotemRPLocalTrack.h.

123 { return TVector3(track_params_vector_[0], track_params_vector_[1], z0_); }

◆ parameterVector()

TVectorD TotemRPLocalTrack::parameterVector ( ) const

Definition at line 48 of file TotemRPLocalTrack.cc.

                                                   {
   TVectorD v(dimension);
  
   for (int i = 0; i < dimension; ++i)
     v[i] = track_params_vector_[i];
  
   return v;

References dimension, mps_fire::i, track_params_vector_, and findQualityFiles::v.

◆ setChiSquared()

void TotemRPLocalTrack::setChiSquared ( double & chiSquared )

inline

Definition at line 115 of file TotemRPLocalTrack.h.

117 {

Referenced by TotemRPLocalTrackFitterAlgorithm::fitTrack().

◆ setCovarianceMatrix()

void TotemRPLocalTrack::setCovarianceMatrix ( const TMatrixD & par_covariance_matrix )

Definition at line 78 of file TotemRPLocalTrack.cc.

                                                                                  {
   for (int i = 0; i < dimension; ++i)
     for (int j = 0; j < dimension; ++j)
       CovarianceMatrixElement(i, j) = par_covariance_matrix(i, j);

References CovarianceMatrixElement(), dimension, mps_fire::i, and dqmiolumiharvest::j.

Referenced by TotemRPLocalTrackFitterAlgorithm::fitTrack().

◆ setParameterVector()

void TotemRPLocalTrack::setParameterVector ( const TVectorD & track_params_vector )

Definition at line 59 of file TotemRPLocalTrack.cc.

                                                                               {
   for (int i = 0; i < dimension; ++i)
     track_params_vector_[i] = track_params_vector[i];

References dimension, mps_fire::i, and track_params_vector_.

Referenced by TotemRPLocalTrackFitterAlgorithm::fitTrack().

◆ setValid()

void TotemRPLocalTrack::setValid ( bool valid )

inline

Definition at line 134 of file TotemRPLocalTrack.h.

134 { return par_covariance_matrix_[i * dimension + j]; }

References dimension, mps_fire::i, dqmiolumiharvest::j, and par_covariance_matrix_.

Referenced by TotemRPLocalTrackFitterAlgorithm::fitTrack().

◆ setZ0()

void TotemRPLocalTrack::setZ0 ( double z0 )

inline

Definition at line 94 of file TotemRPLocalTrack.h.

94 { return track_params_vector_[3]; }

References track_params_vector_.

Referenced by TotemRPLocalTrackFitterAlgorithm::fitTrack().

◆ trackCentrePoint()

TVector3 TotemRPLocalTrack::trackCentrePoint ( )

inline

Definition at line 128 of file TotemRPLocalTrack.h.

129 { valid_ = valid; }

References RunInfoPI::valid, and valid_.

◆ trackPoint()

TVector2 TotemRPLocalTrack::trackPoint ( double z ) const

inline

returns (x, y) vector

Definition at line 122 of file TotemRPLocalTrack.h.

                                      { return TVector3(track_params_vector_[0], track_params_vector_[1], z0_); }
  
   TMatrixD trackPointInterpolationCovariance(double z) const;

References track_params_vector_, and z0_.

Referenced by TotemRPLocalTrackFitterAlgorithm::fitTrack().

◆ trackPointInterpolationCovariance()

TMatrixD TotemRPLocalTrack::trackPointInterpolationCovariance ( double z ) const

Definition at line 13 of file TotemRPLocalTrack.cc.

                                                                             {
   TMatrixD h(2, 4);
   h(0, 0) = 1;
   h(1, 1) = 1;
   h(0, 2) = z - z0_;
   h(1, 3) = z - z0_;
  
   TMatrixD cov_matr(dimension, dimension);
   for (int i = 0; i < dimension; ++i)
     for (int j = 0; j < dimension; ++j)
       cov_matr(i, j) = CovarianceMatrixElement(i, j);
  
   TMatrixD V_hT(cov_matr, TMatrixD::kMultTranspose, h);
   //h*=V_hT;
   //return h;
   return TMatrixD(h, TMatrixD::kMult, V_hT);

References CovarianceMatrixElement(), dimension, h, mps_fire::i, dqmiolumiharvest::j, JetComb::kMult, z, and z0_.

Referenced by TotemRPLocalTrackFitterAlgorithm::fitTrack().

◆ tx()

double TotemRPLocalTrack::tx ( ) const

inline

Definition at line 96 of file TotemRPLocalTrack.h.

97 {

Referenced by txSigma().

◆ txSigma()

double TotemRPLocalTrack::txSigma ( ) const

inline

Definition at line 97 of file TotemRPLocalTrack.h.

97 {

References tx(), and ty().

◆ ty()

double TotemRPLocalTrack::ty ( ) const

inline

Definition at line 99 of file TotemRPLocalTrack.h.

109 { return chiSquared_; }

Referenced by txSigma().

◆ tySigma()

double TotemRPLocalTrack::tySigma ( ) const

inline

Definition at line 100 of file TotemRPLocalTrack.h.

109 { return chiSquared_; }

◆ x0()

double TotemRPLocalTrack::x0 ( ) const

inline

Definition at line 85 of file TotemRPLocalTrack.h.

85 { return sqrt(CovarianceMatrixElement(1, 1)); }

References CovarianceMatrixElement(), and mathSSE::sqrt().

Referenced by ElasticPlotDQMSource::analyze().

◆ x0Sigma()

double TotemRPLocalTrack::x0Sigma ( ) const

inline

Definition at line 86 of file TotemRPLocalTrack.h.

86 { return CovarianceMatrixElement(1, 1); }

References CovarianceMatrixElement().

◆ x0Variance()

double TotemRPLocalTrack::x0Variance ( ) const

inline

Definition at line 87 of file TotemRPLocalTrack.h.

88 { return z0_; }

References z0_.

◆ y0()

double TotemRPLocalTrack::y0 ( ) const

inline

Definition at line 89 of file TotemRPLocalTrack.h.

89 { z0_ = z0; }

References z0(), and z0_.

Referenced by ElasticPlotDQMSource::analyze().

◆ y0Sigma()

double TotemRPLocalTrack::y0Sigma ( ) const

inline

Definition at line 90 of file TotemRPLocalTrack.h.

91 { return track_params_vector_[2]; }

◆ y0Variance()

double TotemRPLocalTrack::y0Variance ( ) const

inline

Definition at line 91 of file TotemRPLocalTrack.h.

91 { return track_params_vector_[2]; }

References track_params_vector_.

◆ z0()

double TotemRPLocalTrack::z0 ( ) const

inline

Definition at line 93 of file TotemRPLocalTrack.h.

94 { return track_params_vector_[3]; }

Referenced by y0().

Friends And Related Function Documentation

◆ operator<

bool operator<	(	const TotemRPLocalTrack &	l,
		const TotemRPLocalTrack &	r
	)

friend

Definition at line 86 of file TotemRPLocalTrack.cc.

                                                                        {
   if (l.z0_ < r.z0_)
     return true;
   if (l.z0_ > r.z0_)
     return true;
  
   for (int i = 0; i < TotemRPLocalTrack::dimension; ++i) {
     if (l.track_params_vector_[i] < r.track_params_vector_[i])
       return true;
     if (l.track_params_vector_[i] > r.track_params_vector_[i])
       return true;
   }
  
   return false;

Member Data Documentation

◆ chiSquared_

double TotemRPLocalTrack::chiSquared_

private

fit chi^2

Definition at line 155 of file TotemRPLocalTrack.h.

◆ covarianceSize

const int TotemRPLocalTrack::covarianceSize = dimension * dimension

static

Definition at line 69 of file TotemRPLocalTrack.h.

◆ dimension

const int TotemRPLocalTrack::dimension = 4

static

< parameter vector size

covariance matrix size

Definition at line 66 of file TotemRPLocalTrack.h.

Referenced by covarianceMatrix(), operator<(), parameterVector(), setCovarianceMatrix(), setParameterVector(), setValid(), TotemRPLocalTrack(), and trackPointInterpolationCovariance().

◆ par_covariance_matrix_

double TotemRPLocalTrack::par_covariance_matrix_[covarianceSize]

private

Definition at line 152 of file TotemRPLocalTrack.h.

Referenced by setValid().

◆ track_hits_vector_

edm::DetSetVector<FittedRecHit> TotemRPLocalTrack::track_hits_vector_

private

Definition at line 143 of file TotemRPLocalTrack.h.

Referenced by chiSquared().

◆ track_params_vector_

double TotemRPLocalTrack::track_params_vector_[dimension]

private

track parameters: (x0, y0, tx, ty); x = x0 + tx*(z-z0) ...

Definition at line 146 of file TotemRPLocalTrack.h.

Referenced by hits(), parameterVector(), setParameterVector(), setZ0(), TotemRPLocalTrack(), trackPoint(), and y0Variance().

◆ valid_

bool TotemRPLocalTrack::valid_

private

fit valid?

Definition at line 158 of file TotemRPLocalTrack.h.

Referenced by trackCentrePoint().

◆ z0_

double TotemRPLocalTrack::z0_

private

z where x0 and y0 are evaluated. filled from CTPPSGeometry::getRPTranslation

Definition at line 150 of file TotemRPLocalTrack.h.

Referenced by chiSquaredOverNDF(), trackPoint(), trackPointInterpolationCovariance(), x0Variance(), and y0().

Classes

Public Member Functions

Static Public Attributes

Private Member Functions

Private Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ TotemRPLocalTrack() [1/2]

◆ TotemRPLocalTrack() [2/2]

◆ ~TotemRPLocalTrack()

Member Function Documentation

◆ addHit()

◆ chiSquared()

◆ chiSquaredOverNDF()

◆ covarianceMatrix()

◆ CovarianceMatrixElement() [1/2]

◆ CovarianceMatrixElement() [2/2]

◆ directionVector()

◆ hits()

◆ isValid()

◆ numberOfPointsUsedForFit()

◆ parameterVector()

◆ setChiSquared()

◆ setCovarianceMatrix()

◆ setParameterVector()

◆ setValid()

◆ setZ0()

◆ trackCentrePoint()

◆ trackPoint()

◆ trackPointInterpolationCovariance()

◆ tx()

◆ txSigma()

◆ ty()

◆ tySigma()

◆ x0()

◆ x0Sigma()

◆ x0Variance()

◆ y0()

◆ y0Sigma()

◆ y0Variance()

◆ z0()

Friends And Related Function Documentation

◆ operator<

Member Data Documentation

◆ chiSquared_

◆ covarianceSize

◆ dimension

◆ par_covariance_matrix_

◆ track_hits_vector_

◆ track_params_vector_

◆ valid_

◆ z0_