TotemRPLocalTrack Class Reference

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 31 of file TotemRPLocalTrack.h.

Constructor & Destructor Documentation

TotemRPLocalTrack() [1/2]

TotemRPLocalTrack::TotemRPLocalTrack ( )

inline

Definition at line 72 of file TotemRPLocalTrack.h.

{}

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 79 of file TotemRPLocalTrack.h.

{ return track_params_vector_[0]; }

References track_params_vector_.

Member Function Documentation

addHit()

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

inline

Definition at line 82 of file TotemRPLocalTrack.h.

                                   { return CovarianceMatrixElement(0, 0); }
 
  inline double y0() const { return track_params_vector_[1]; }

References CovarianceMatrixElement().

Referenced by TotemRPLocalTrackFitterAlgorithm::fitTrack().

chiSquared()

double TotemRPLocalTrack::chiSquared ( ) const

inline

Definition at line 115 of file TotemRPLocalTrack.h.

{

chiSquaredOverNDF()

double TotemRPLocalTrack::chiSquaredOverNDF ( ) const

inline

Definition at line 118 of file TotemRPLocalTrack.h.

{ return TVector3(track_params_vector_[0], track_params_vector_[1], 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 142 of file TotemRPLocalTrack.h.

CovarianceMatrixElement() [2/2]

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

inlineprivate

Definition at line 140 of file TotemRPLocalTrack.h.

Referenced by addHit(), covarianceMatrix(), hits(), setCovarianceMatrix(), setZ0(), TotemRPLocalTrack(), trackPointInterpolationCovariance(), x0(), and y0Variance().

directionVector()

TVector3 TotemRPLocalTrack::directionVector ( ) const

inline

Definition at line 103 of file TotemRPLocalTrack.h.

                                   { return chiSquared_; }

hits()

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

inline

Definition at line 81 of file TotemRPLocalTrack.h.

{ return sqrt(CovarianceMatrixElement(0, 0)); }

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

isValid()

bool TotemRPLocalTrack::isValid ( void  ) const

inline

Definition at line 133 of file TotemRPLocalTrack.h.

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

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

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

numberOfPointsUsedForFit()

unsigned short TotemRPLocalTrack::numberOfPointsUsedForFit ( ) const

inline

Definition at line 120 of file TotemRPLocalTrack.h.

{ 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 116 of file TotemRPLocalTrack.h.

{

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 135 of file TotemRPLocalTrack.h.

{ 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 95 of file TotemRPLocalTrack.h.

{ return sqrt(CovarianceMatrixElement(3, 3)); }

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

Referenced by TotemRPLocalTrackFitterAlgorithm::fitTrack().

trackCentrePoint()

TVector3 TotemRPLocalTrack::trackCentrePoint ( )

inline

Definition at line 129 of file TotemRPLocalTrack.h.

{ valid_ = valid; }

References validateGeometry_cfg::valid, and valid_.

trackPoint()

TVector2 TotemRPLocalTrack::trackPoint ( double  z ) const

inline

returns (x, y) vector

Definition at line 123 of file TotemRPLocalTrack.h.

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

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 97 of file TotemRPLocalTrack.h.

{

txSigma()

double TotemRPLocalTrack::txSigma ( ) const

inline

Definition at line 98 of file TotemRPLocalTrack.h.

{ return chiSquared_; }

ty()

double TotemRPLocalTrack::ty ( ) const

inline

Definition at line 100 of file TotemRPLocalTrack.h.

{ return chiSquared_; }

tySigma()

double TotemRPLocalTrack::tySigma ( ) const

inline

Definition at line 101 of file TotemRPLocalTrack.h.

{ return chiSquared_; }

x0()

double TotemRPLocalTrack::x0 ( ) const

inline

Definition at line 86 of file TotemRPLocalTrack.h.

{ return CovarianceMatrixElement(1, 1); }

References CovarianceMatrixElement().

Referenced by ElasticPlotDQMSource::analyze().

x0Sigma()

double TotemRPLocalTrack::x0Sigma ( ) const

inline

Definition at line 87 of file TotemRPLocalTrack.h.

{ return z0_; }

x0Variance()

double TotemRPLocalTrack::x0Variance ( ) const

inline

Definition at line 88 of file TotemRPLocalTrack.h.

{ return z0_; }

References z0_.

y0()

double TotemRPLocalTrack::y0 ( ) const

inline

Definition at line 90 of file TotemRPLocalTrack.h.

{ return track_params_vector_[2]; }

Referenced by ElasticPlotDQMSource::analyze().

y0Sigma()

double TotemRPLocalTrack::y0Sigma ( ) const

inline

Definition at line 91 of file TotemRPLocalTrack.h.

{ return track_params_vector_[2]; }

References track_params_vector_.

y0Variance()

double TotemRPLocalTrack::y0Variance ( ) const

inline

Definition at line 92 of file TotemRPLocalTrack.h.

{ return sqrt(CovarianceMatrixElement(2, 2)); }

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

z0()

double TotemRPLocalTrack::z0 ( ) const

inline

Definition at line 94 of file TotemRPLocalTrack.h.

{ return track_params_vector_[3]; }

References track_params_vector_.

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 156 of file TotemRPLocalTrack.h.

covarianceSize

const int TotemRPLocalTrack::covarianceSize = dimension * dimension

static

Definition at line 70 of file TotemRPLocalTrack.h.

dimension

const int TotemRPLocalTrack::dimension = 4

static

< parameter vector size

covariance matrix size

Definition at line 67 of file TotemRPLocalTrack.h.

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

par_covariance_matrix_

double TotemRPLocalTrack::par_covariance_matrix_[covarianceSize]

private

Definition at line 153 of file TotemRPLocalTrack.h.

Referenced by isValid(), and setValid().

track_hits_vector_

edm::DetSetVector<FittedRecHit> TotemRPLocalTrack::track_hits_vector_

private

Definition at line 144 of file TotemRPLocalTrack.h.

track_params_vector_

double TotemRPLocalTrack::track_params_vector_[dimension]

private

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

Definition at line 147 of file TotemRPLocalTrack.h.

Referenced by parameterVector(), setParameterVector(), TotemRPLocalTrack(), trackPoint(), y0Sigma(), z0(), and ~TotemRPLocalTrack().

valid_

bool TotemRPLocalTrack::valid_

private

fit valid?

Definition at line 159 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 151 of file TotemRPLocalTrack.h.

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