THelixFitter Class Reference

A class to fit a TTrackBase object to a helix. More...

#include <THelixFitter.h>

Inheritance diagram for THelixFitter:

Public Member Functions
	THelixFitter (const std::string &name)
	Constructor.
virtual	~THelixFitter ()
	Destructor.
void	dump (const std::string &message=std::string(""), const std::string &prefix=std::string("")) const
	dumps debug information.
bool	fit2D (void) const
	sets/returns 2D flag.
bool	fit2D (bool)
bool	freeT0 (void) const
	sets/returns free T0 flag.
bool	freeT0 (bool)
unsigned	corrections (void) const
	sets/returns correctin flag.
unsigned	corrections (unsigned)
bool	sag (void) const
	sets/returns sag correction flag.
bool	sag (bool)
bool	propagation (void) const
	sets/returns propagation-delay correction flag.
bool	propagation (bool)
bool	tof (void) const
	sets/returns propagation-delay correction flag.
bool	tof (bool)
bool	tanl (void) const
	sets/returns tanLambda correction flag.
bool	tanl (bool)
double	preChi2 (void) const
	returns sum of chi2 before fit.
double	chi2 (void) const
	returns sum of chi2 aftter fit.
IMagneticFieldSvc *	getMagneticFieldPointer (void) const
int	fit (TTrackBase &) const
int	fit (TTrackBase &, double *pre_chi2, double *fitted_chi2) const
int	fit (TTrackBase &, float t0Offset, double *pre_chi2=NULL, double *fitted_chi2=NULL) const
int	fit (TTrackBase &, float &tev, float &tev_err, double *pre_chi2=NULL, double *fitted_chi2=NULL) const
Public Member Functions inherited from TMFitter
	TMFitter (const std::string &name)
	Constructor.
virtual	~TMFitter ()
	Destructor.
const std::string &	name (void) const
	returns name.
void	dump (const std::string &message=std::string(""), const std::string &prefix=std::string("")) const
virtual int	fit (TTrackBase &) const =0

Additional Inherited Members
Protected Member Functions inherited from TMFitter
void	fitDone (TTrackBase &) const
	sets the fitted flag. (Bad implementation)

Detailed Description

A class to fit a TTrackBase object to a helix.

Definition at line 48 of file THelixFitter.h.

Constructor & Destructor Documentation

THelixFitter()

THelixFitter::THelixFitter

(

const std::string &

name

)

Constructor.

Definition at line 122 of file THelixFitter.cxx.

: TMFitter(name),
  _fit2D(false),
  _freeT0(false),
  _sag(false),
  _propagation(false),
  _tof(false),
  _tanl(false),
  _pre_chi2(0.),
  _fitted_chi2(0.),
  m_pmgnIMF(0) {
 
    //yzhang delete
  //StatusCode scmgn = Gaudi::svcLocator()->service("MagneticFieldSvc",m_pmgnIMF); 
  //if(scmgn!=StatusCode::SUCCESS) { 
  //  std::cout<< name <<" Unable to open Magnetic field service"<<std::endl;
  //}else{
  //  std::cout<< name <<" open Magnetic field service"<<std::endl;
  //}
 
}

~THelixFitter()

THelixFitter::~THelixFitter ( )

virtual

Destructor.

Definition at line 144 of file THelixFitter.cxx.

                            {
}

Member Function Documentation

chi2()

double THelixFitter::chi2 ( void  ) const

inline

returns sum of chi2 aftter fit.

Definition at line 305 of file THelixFitter.h.

                             {
    return _fitted_chi2;
}

corrections() [1/2]

unsigned THelixFitter::corrections ( unsigned  a )

inline

Definition at line 293 of file THelixFitter.h.

                                    {
    return _corrections = a;
}

corrections() [2/2]

unsigned THelixFitter::corrections ( void  ) const

inline

sets/returns correctin flag.

Definition at line 287 of file THelixFitter.h.

                                    {
    return _corrections;
}

dump()

void THelixFitter::dump	(	const std::string &	message = std::string(""),
		const std::string &	prefix = std::string("")
	)		const

dumps debug information.

fit() [1/4]

int THelixFitter::fit ( TTrackBase &  a ) const

inlinevirtual

Implements TMFitter.

Definition at line 231 of file THelixFitter.h.

                                      {
    if (! _freeT0) return main(a, 0.);
    else {
    float tev = 0.;
    float tevError;
    return main(a, tev, tevError);
    }
}

Referenced by TBuilder::build(), TBuilder::buildRphi(), TBuilder::buildStereo(), TBuilderCurl::buildStereo(), TBuilderCurl::buildStereoMC(), TPerfectFinder::doit(), TTrackManager::mask(), TTrackManager::maskCurl(), TTrackManager::maskNormal(), TTrackManager::merge(), TTrackManager::refit(), and TBuilder::salvage().

fit() [2/4]

int THelixFitter::fit ( TTrackBase &  a, double *  pre_chi2, double *  fitted_chi2  ) const

inline

Definition at line 242 of file THelixFitter.h.

                                                       {
    if (! _freeT0) return main(a, 0., pre_chi2, fitted_chi2);
    else {
    float tev = 0.;
    float tevError;
    return main(a, tev, tevError, pre_chi2, fitted_chi2);
    }
}

fit() [3/4]

int THelixFitter::fit ( TTrackBase &  a, float &  tev, float &  tev_err, double *  pre_chi2 = NULL, double *  fitted_chi2 = NULL  ) const

inline

Definition at line 267 of file THelixFitter.h.

                                                       {
    a._fitted = false;
    return main(a, tev, tev_err, pre_chi2, fitted_chi2);
}

fit() [4/4]

int THelixFitter::fit ( TTrackBase &  a, float  t0Offset, double *  pre_chi2 = NULL, double *  fitted_chi2 = NULL  ) const

inline

Definition at line 254 of file THelixFitter.h.

                                                       {
    a._fitted = false;
    if (! _freeT0) return main(a, t0Offset, pre_chi2, fitted_chi2);
    else {
    float tev = t0Offset;
    float tevError;
    return main(a, tev, tevError, pre_chi2, fitted_chi2);
    }
}

fit2D() [1/2]

bool THelixFitter::fit2D ( bool  a )

inline

Definition at line 175 of file THelixFitter.h.

                          {
    return _fit2D = a;
}

fit2D() [2/2]

bool THelixFitter::fit2D ( void  ) const

inline

sets/returns 2D flag.

Definition at line 169 of file THelixFitter.h.

                              {
    return _fit2D;
}

Referenced by TTrackManager::determineT0().

freeT0() [1/2]

bool THelixFitter::freeT0 ( bool  a )

inline

Definition at line 281 of file THelixFitter.h.

                           {
    return _freeT0 = a;
}

freeT0() [2/2]

bool THelixFitter::freeT0 ( void  ) const

inline

sets/returns free T0 flag.

Definition at line 275 of file THelixFitter.h.

                               {
    return _freeT0;
}

Referenced by TTrackManager::fittingFlag(), and TBuilder::TBuilder().

getMagneticFieldPointer()

IMagneticFieldSvc * THelixFitter::getMagneticFieldPointer ( void  ) const

inline

Definition at line 98 of file THelixFitter.h.

{return m_pmgnIMF;}

Referenced by TBuilder::build().

preChi2()

double THelixFitter::preChi2 ( void  ) const

inline

returns sum of chi2 before fit.

Definition at line 299 of file THelixFitter.h.

                                {
    return _pre_chi2;
}

propagation() [1/2]

bool THelixFitter::propagation ( bool  a )

inline

Definition at line 199 of file THelixFitter.h.

                                {
    if (a) _propagation = 1;
    else   _propagation = 0;
    return propagation();
}

propagation() [2/2]

bool THelixFitter::propagation ( void  ) const

inline

sets/returns propagation-delay correction flag.

Definition at line 193 of file THelixFitter.h.

                                    {
    return (bool) _propagation;
}

Referenced by TBuilderCurl::buildStereo(), TTrackManager::determineT0(), TTrackManager::fittingFlag(), propagation(), TBuilderCurl::setParam(), TBuilder::TBuilder(), and TBuilderCurl::TBuilderCurl().

sag() [1/2]

bool THelixFitter::sag ( bool  a )

inline

Definition at line 187 of file THelixFitter.h.

                        {
    return _sag = a;
}

sag() [2/2]

bool THelixFitter::sag ( void  ) const

inline

sets/returns sag correction flag.

Definition at line 181 of file THelixFitter.h.

                            {
    return _sag;
}

Referenced by TBuilderCurl::buildStereo(), TTrackManager::fittingFlag(), TBuilderCurl::setParam(), TBuilder::TBuilder(), and TBuilderCurl::TBuilderCurl().

tanl() [1/2]

bool THelixFitter::tanl ( bool  a )

inline

Definition at line 225 of file THelixFitter.h.

                         {
    return _tanl = a;
}

tanl() [2/2]

bool THelixFitter::tanl ( void  ) const

inline

sets/returns tanLambda correction flag.

Definition at line 219 of file THelixFitter.h.

                             {
    return _tanl;
}

tof() [1/2]

bool THelixFitter::tof ( bool  a )

inline

Definition at line 213 of file THelixFitter.h.

                        {
    return _tof = a;
}

tof() [2/2]

bool THelixFitter::tof ( void  ) const

inline

sets/returns propagation-delay correction flag.

Definition at line 207 of file THelixFitter.h.

                            {
    return _tof;
}

Referenced by TBuilderCurl::buildStereo(), TTrackManager::determineT0(), TTrackManager::fittingFlag(), TBuilderCurl::setParam(), TBuilder::TBuilder(), and TBuilderCurl::TBuilderCurl().

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

• THelixFitter.h
• THelixFitter.cxx