Inheritance diagram for TrackParticleFitObject:

Public Types
enum	{ iD0 =0, iPhi0, iOmega, iZ0, iTanL, iStart, iEnd, NPAR }

Public Member Functions
	TrackParticleFitObject (const EVENT::Track *trk, double m)

	TrackParticleFitObject (const EVENT::TrackState *trk, double m)

	TrackParticleFitObject (const double _ppars, const double _cov, double m, const double *refPt_=0)

	TrackParticleFitObject (const TrackParticleFitObject &rhs)

TrackParticleFitObject &	operator= (const TrackParticleFitObject &rhs)

virtual TrackParticleFitObject *	copy () const
	Return a new copy of itself.

virtual TrackParticleFitObject &	assign (const BaseFitObject &source)
	Assign from anther object, if of same type. More...

virtual const char *	getParamName (int ilocal) const
	Get name of parameter ilocal. More...

virtual bool	updateParams (double p[], int idim)
	Read values from global vector, readjust vector; return: significant change. More...

virtual double	getDPx (int ilocal) const
	Return d p_x / d par_ilocal (derivative of px w.r.t. local parameter ilocal)

virtual double	getDPy (int ilocal) const
	Return d p_y / d par_ilocal (derivative of py w.r.t. local parameter ilocal)

virtual double	getDPz (int ilocal) const
	Return d p_z / d par_ilocal (derivative of pz w.r.t. local parameter ilocal)

virtual double	getDE (int ilocal) const
	Return d E / d par_ilocal (derivative of E w.r.t. local parameter ilocal)

virtual double	getFirstDerivative_Meta_Local (int iMeta, int ilocal, int metaSet) const

virtual double	getSecondDerivative_Meta_Local (int iMeta, int ilocal, int jlocal, int metaSet) const

virtual double	getChi2 () const
	Get chi squared from measured and fitted parameters.

virtual int	getNPar () const
	Get total number of parameters of this FitObject.

virtual ThreeVector	getTrackPlaneNormal () const

virtual ThreeVector	getTrackPcaVector () const

virtual int	getCharge () const

virtual ThreeVector	getVertex (int ivertex) const
	Get start (i=0) or stop (i=1) vertex.

virtual void	setVertex (int ivertex, const TwoVector &v)
	Set start (i=0) or stop (i=1) vertex to a point as close as possible to given point. More...

virtual FourVector	getMomentum (int ivertex) const
	Get momentum at vertex.

virtual bool	setParameters (int ivertex, const ThreeVector &vertex, const FourVector &momentum, double charge_)
	Set parameters such that track passes through a vertex with a given 4-momentum; return=success. More...

virtual bool	fixVertexParam (int ivertex, bool fix=true)
	Get helix that is tangential at a certain arc length s. More...

virtual bool	releaseVertexParam (int ivertex)
	Release parameter(s) pertaining to a vertex. More...

virtual ThreeVector	getVertexDerivative (int ivertex, int ilocal) const
	Get derivative of vertex w.r.t. parameter ilocal. More...

virtual JBLHelix	getJBLHelix ()
	Get JBLhelix.

virtual JBLHelix	getJBLHelix (const ThreeVector &newRefPoint)

Public Member Functions inherited from ParticleFitObject
	ParticleFitObject ()
	Default constructor.

	ParticleFitObject (const ParticleFitObject &rhs)
	Copy constructor. More...

ParticleFitObject &	operator= (const ParticleFitObject &rhs)
	Assignment. More...

virtual	~ParticleFitObject ()
	Virtual destructor.

virtual bool	setMass (double mass_)
	Set mass of particle; return=success.

virtual double	getMass () const
	Get mass of particle.

virtual std::ostream &	print4Vector (std::ostream &os) const
	print the four-momentum (E, px, py, pz) More...

virtual FourVector	getFourMomentum () const

virtual double	getE () const
	Return E.

virtual double	getPx () const
	Return px.

virtual double	getPy () const
	Return py.

virtual double	getPz () const
	Return pz.

virtual double	getP () const
	Return p (momentum)

virtual double	getP2 () const
	Return p (momentum) squared.

virtual double	getPt () const
	Return pt (transverse momentum)

virtual double	getPt2 () const
	Return pt (transverse momentum) squared.

virtual void	getDerivatives (double der[], int idim) const

virtual void	addToGlobalChi2DerMatrixNum (double *M, int idim, double eps)
	Add numerically determined derivatives of chi squared to global covariance matrix. More...

virtual void	addToGlobalChi2DerVectorNum (double *y, int idim, double eps)
	Add numerically determined derivatives of chi squared to global derivative vector. More...

virtual std::ostream &	print (std::ostream &os) const
	print object to ostream More...

void	test1stDerivatives ()

void	test2ndDerivatives ()

double	num1stDerivative (int ilocal, double eps)
	Evaluates numerically the 1st derivative of chi2 w.r.t. a parameter. More...

double	num2ndDerivative (int ilocal1, double eps1, int ilocal2, double eps2)
	Evaluates numerically the 2nd derivative of chi2 w.r.t. 2 parameters. More...

Public Member Functions inherited from BaseFitObject
	BaseFitObject ()
	Default constructor.

	BaseFitObject (const BaseFitObject &rhs)
	Copy constructor. More...

BaseFitObject &	operator= (const BaseFitObject &rhs)
	Assignment. More...

virtual	~BaseFitObject ()
	Virtual destructor.

virtual bool	setParam (int ilocal, double par_, bool measured_, bool fixed_=false)
	Set value and measured flag of parameter i; return: significant change. More...

virtual bool	setParam (int ilocal, double par_)
	Set value of parameter ilocal; return: significant change. More...

virtual bool	setMParam (int ilocal, double mpar_)
	Set measured value of parameter ilocal; return: success. More...

virtual bool	setError (int ilocal, double err_)
	Set error of parameter ilocal; return: success. More...

virtual bool	setCov (int ilocal, int jlocal, double cov_)
	Set covariance of parameters ilocal and jlocal; return: success. More...

virtual bool	setGlobalParNum (int ilocal, int iglobal)
	Set number of parameter ilocal in global list return true signals OK. More...

virtual bool	fixParam (int ilocal, bool fix=true)
	Fix a parameter (fix=true), or release it (fix=false) More...

virtual bool	releaseParam (int ilocal)
	Release a parameter. More...

virtual bool	isParamFixed (int ilocal) const
	Returns whether parameter is fixed. More...

virtual double	getParam (int ilocal) const
	Get current value of parameter ilocal. More...

virtual const char *	getName () const
	Get object's name.

virtual void	setName (const char *name_)
	Set object's name.

virtual double	getMParam (int ilocal) const
	Get measured value of parameter ilocal. More...

virtual double	getError (int ilocal) const
	Get error of parameter ilocal. More...

virtual double	getCov (int ilocal, int jlocal) const
	Get covariance between parameters ilocal and jlocal. More...

virtual double	getRho (int ilocal, int jlocal) const
	Get correlation coefficient between parameters ilocal and jlocal. More...

virtual bool	isParamMeasured (int ilocal) const
	Get measured flag for parameter ilocal. More...

virtual int	getGlobalParNum (int ilocal) const
	Get global parameter number of parameter ilocal. More...

virtual int	getNMeasured () const
	Get number of measured parameters of this FitObject.

virtual int	getNUnmeasured () const
	Get number of unmeasured parameters of this FitObject.

virtual int	getNFree () const
	Get number of free parameters of this FitObject.

virtual int	getNFixed () const
	Get number of fixed parameters of this FitObject.

virtual double	getDChi2DParam (int ilocal) const
	Get derivative of chi squared w.r.t. parameter ilocal. More...

virtual double	getD2Chi2DParam2 (int ilocal, int jlocal) const
	Get second derivative of chi squared w.r.t. parameters ilocal1 and ilocal2. More...

virtual std::ostream &	printParams (std::ostream &os) const
	print the parameters and errors More...

virtual std::ostream &	printRhoValues (std::ostream &os) const
	print the correlation coefficients More...

virtual std::ostream &	print1stDerivatives (std::ostream &os) const
	print the 1st derivatives wrt metaSet 0 (E, px, py, pz) More...

virtual std::ostream &	print2ndDerivatives (std::ostream &os) const
	print the 2nd derivatives wrt metaSet 0 (E, px, py, pz) More...

virtual void	invalidateCache () const
	invalidate any cached quantities

virtual void	addToGlobCov (double *glcov, int idim) const
	Add covariance matrix elements to global covariance matrix of size idim x idim. More...

virtual void	addToGlobalChi2DerVector (double *y, int idim) const
	Add derivatives of chi squared to global derivative vector. More...

virtual void	addToGlobalChi2DerMatrix (double *M, int idim) const
	Add 2nd derivatives of chi squared to global derivative matrix. More...

virtual void	addToGlobalChi2DerVector (double *y, int idim, double lambda, double der[], int metaSet) const
	Add derivatives of momentum vector to global derivative vector. More...

virtual void	addTo1stDerivatives (double M[], int idim, double der[], int kglobal, int metaSet) const

virtual void	addTo2ndDerivatives (double der2[], int idim, double factor[], int metaSet) const

virtual void	addTo2ndDerivatives (double M[], int idim, double lambda, double der[], int metaSet) const

virtual void	initCov ()

virtual double	getError2 (double der[], int metaset) const

Static Public Member Functions
static double	setBfield (double bfield_)
	Set the B field for all tracks. More...

static double	getBfield ()
	Get the B field for all tracks (in Tesla)

Static Public Attributes
static double	bfield = 3.5
	Global B field in Tesla(!)

static const double	omega_pt_conv = 2.99792458e-4

static const double	maxpt = 500

Protected Member Functions
virtual void	initialise (const double _pars, const double _cov, double m)

void	updateCache () const

void	updateMomentumDerivatives () const

void	updateNormalDerivatives () const

void	updateTrajectoryDerivatives () const

void	resetMomentumFirstDerivatives () const

void	resetMomentumSecondDerivatives () const

void	resetNormalFirstDerivatives () const

void	resetNormalSecondDerivatives () const

void	resetTrajectoryFirstDerivatives () const

void	resetTrajectorySecondDerivatives () const

void	setMomentumFirstDerivatives (int iMeta, int jLocal, double x) const

void	setMomentumSecondDerivatives (int iMeta, int jLocal, int kLocal, double x) const

void	setNormalFirstDerivatives (int iMeta, int jLocal, double x) const

void	setNormalSecondDerivatives (int iMeta, int jLocal, int kLocal, double x) const

void	setTrajectoryStartFirstDerivatives (int iMeta, int jLocal, double x) const

void	setTrajectoryStartSecondDerivatives (int iMeta, int jLocal, int kLocal, double x) const

void	setTrajectoryEndFirstDerivatives (int iMeta, int jLocal, double x) const

void	setTrajectoryEndSecondDerivatives (int iMeta, int jLocal, int kLocal, double x) const

virtual double	getMomentumFirstDerivatives (int iMeta, int jLocal) const

virtual double	getMomentumSecondDerivatives (int iMeta, int jLocal, int kLocal) const

virtual double	getNormalFirstDerivatives (int iMeta, int jLocal) const

virtual double	getNormalSecondDerivatives (int iMeta, int jLocal, int kLocal) const

virtual double	getTrajectoryStartFirstDerivatives (int iMeta, int jLocal) const

virtual double	getTrajectoryStartSecondDerivatives (int iMeta, int jLocal, int kLocal) const

virtual double	getTrajectoryEndFirstDerivatives (int iMeta, int jLocal) const

virtual double	getTrajectoryEndSecondDerivatives (int iMeta, int jLocal, int kLocal) const

Protected Member Functions inherited from BaseFitObject
virtual bool	calculateCovInv () const
	Calculate the inverse of the covariance matrix.

Protected Attributes
ThreeVector	trackReferencePoint

ThreeVector	trackPlaneNormal

ThreeVector	trackPcaVector

ThreeVector	trajectoryPointAtPCA

ThreeVector	trajectoryPointAtStart

ThreeVector	trajectoryPointAtEnd

ThreeVector	momentumAtPCA

ThreeVector	momentumAtStart

ThreeVector	momentumAtEnd

double	momentumFirstDerivatives [4][NPAR]

double	momentumSecondDerivatives [4][NPAR][NPAR]

double	normalFirstDerivatives [3][NPAR]

double	normalSecondDerivatives [3][NPAR][NPAR]

double	trajectoryStartFirstDerivatives [3][NPAR]

double	trajectoryStartSecondDerivatives [3][NPAR][NPAR]

double	trajectoryEndFirstDerivatives [3][NPAR]

double	trajectoryEndSecondDerivatives [3][NPAR][NPAR]

double	phi0

double	omega

double	tanl

double	d0

double	z0

double	s_start

double	s_end

double	chi2

Protected Attributes inherited from ParticleFitObject
double	mass
	mass of particle

FourVector	fourMomentum

double	paramCycl [BaseDefs::MAXPAR]

Protected Attributes inherited from BaseFitObject
char *	name

double	par [BaseDefs::MAXPAR]
	fit parameters

double	mpar [BaseDefs::MAXPAR]
	measured parameters

bool	measured [BaseDefs::MAXPAR]
	measured flag

bool	fixed [BaseDefs::MAXPAR]
	fixed flag

int	globalParNum [BaseDefs::MAXPAR]
	global paramter number for each parameter

double	cov [BaseDefs::MAXPAR][BaseDefs::MAXPAR]
	local covariance matrix

double	covinv [BaseDefs::MAXPAR][BaseDefs::MAXPAR]
	inverse pf local covariance matrix

bool	covinvvalid
	flag for valid inverse covariance matrix

bool	cachevalid
	flag for valid cache

Static Protected Attributes
static const double	parfact [NPAR] = {1.e-2, 1., 1.e-3, 1.e-2, 1., 1., 1.}

Static Protected Attributes inherited from BaseFitObject
static const double	eps2 = 0.0001

Additional Inherited Members
Related Functions inherited from BaseFitObject
std::ostream &	operator<< (std::ostream &os, const BaseFitObject &bfo)
	Prints out a BaseFitObject, using its print method. More...

Member Function Documentation

TrackParticleFitObject & TrackParticleFitObject::assign ( const BaseFitObject & source )

virtual

Assign from anther object, if of same type.

Parameters

source The source object

Reimplemented from ParticleFitObject.

References ParticleFitObject::assign().

bool TrackParticleFitObject::fixVertexParam	(	int	ivertex,
		bool	fix = `true`
	)

virtual

Get helix that is tangential at a certain arc length s.

Fix parameter(s) pertaining to a vertex, or release it

Parameters

ivertex	Vertex number
fix	fix if true, release if false

References BaseFitObject::fixParam().

Referenced by releaseVertexParam().

const char * TrackParticleFitObject::getParamName ( int ilocal ) const

virtual

Get name of parameter ilocal.

Parameters

ilocal Local parameter number

Reimplemented from BaseFitObject.

ThreeVector TrackParticleFitObject::getVertexDerivative	(	int	ivertex,
		int	ilocal
	)		const

virtual

Get derivative of vertex w.r.t. parameter ilocal.

Parameters

ivertex	vertex number: 0=start, 1=stop
ilocal	Local parameter number

Referenced by VertexConstraint::getDerivatives().

bool TrackParticleFitObject::releaseVertexParam ( int ivertex )

virtual

Release parameter(s) pertaining to a vertex.

< Vertex number: 0=start, 1=stop

Parameters

ivertex Vertex number: 0=start, 1=stop

References fixVertexParam().

double TrackParticleFitObject::setBfield ( double bfield_ )

static

Set the B field for all tracks.

Parameters

bfield_ New Value of B field (in Tesla)

References bfield.

virtual bool TrackParticleFitObject::setParameters	(	int	ivertex,
		const ThreeVector &	vertex,
		const FourVector &	momentum,
		double	charge_
	)

inlinevirtual

Set parameters such that track passes through a vertex with a given 4-momentum; return=success.

Parameters

ivertex	Vertex number: 0=start, 1=stop
vertex	Vertex position
momentum	Four-momentum
charge_	Charge (signed, in units of e)

void TrackParticleFitObject::setVertex	(	int	ivertex,
		const TwoVector &	v
	)

virtual

Set start (i=0) or stop (i=1) vertex to a point as close as possible to given point.

Parameters

ivertex	Vertex number: 0=start, 1=stop
v	Vertex position // DANIEL why is this 2d vertex?

References BaseFitObject::cachevalid, JBLHelix::getClosestS(), and getJBLHelix().

bool TrackParticleFitObject::updateParams	(	double	p[],
		int	idim
	)

virtual

Read values from global vector, readjust vector; return: significant change.

Parameters

p	The parameter vector
idim	Length of the vector

Reimplemented from BaseFitObject.

References BaseFitObject::cov, getBfield(), BaseFitObject::getGlobalParNum(), getNPar(), BaseFitObject::invalidateCache(), and BaseFitObject::par.

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

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Static Protected Attributes

Additional Inherited Members

Member Function Documentation