#include </dev/shm/kenichi/update-github-e1039-doc/e1039-core/packages/reco/ktracker/VertexFit.h>

Inheritance diagram for VertexFit:

Collaboration diagram for VertexFit:

Public Member Functions
	VertexFit (const std::string &name="VertexFit")

	~VertexFit ()

int	Init (PHCompositeNode *topNode)

int	InitRun (PHCompositeNode *topNode)

int	process_event (PHCompositeNode *topNode)

int	End (PHCompositeNode *topNode)
	Called at the end of all processing. More...

void	enableOptimization ()
	Enable the optimization of final dimuon vertex z position. More...

void	enable_fit_target_center ()

void	setControlParameter (int nMaxIteration, double tolerance)
	Set the convergence control parameters. More...

int	setRecEvent (SRecEvent *recEvent, int sign1=1, int sign2=-1)
	Set the SRecEvent, main external call the use vertex fit. More...

void	init ()
	Initialize and reset. More...

void	addHypothesis (double z, double sigz=50.)

void	setStartingVertex (double z_start, double sigz_start)

void	addTrack (int index, SRecTrack &_track)
	Add one track parameter set into the fit. More...

void	addTrack (int index, KalmanTrack &_track)

void	addTrack (int index, TrkPar &_trkpar)

int	processOnePair ()
	After setting both tracks and hypothesis, start the iteration. More...

int	findVertex ()
	Find the primary vertex. More...

double	findDimuonVertexFast (SRecTrack &track1, SRecTrack &track2)

double	findSingleMuonVertex (SRecTrack &_track)

double	findSingleMuonVertex (Node &_node_start)

double	findSingleMuonVertex (TrkPar &_trkpar_start)

double	getVertexZ0 ()
	Gets. More...

double	getVXChisq ()

double	getKFChisq ()

int	getNTracks ()

void	updateVertex ()
	Core function, update the vertex prediction according to the track info. More...

void	bookEvaluation (std::string evalFileName="vtx_eval.root")
	Evaluation. More...

void	fillEvaluation ()

void	print ()
	Debugging output. More...

const std::string &	get_eval_file_name () const

void	set_eval_file_name (const std::string &evalFileName)

Public Member Functions inherited from SubsysReco
virtual	~SubsysReco ()

virtual int	EndRun (const int)
	Called at the end of each run. More...

virtual int	Reset (PHCompositeNode *)
	Reset. More...

virtual int	ResetEvent (PHCompositeNode *)
	Clean up after each event. More...

virtual void	Print (const std::string &what="ALL") const

Public Member Functions inherited from Fun4AllBase
virtual	~Fun4AllBase ()

virtual const std::string	Name () const
	Returns the name of this module. More...

virtual void	Name (const std::string &name)
	Sets the name of this module. More...

virtual void	Verbosity (const int ival)
	Sets the verbosity of this module (0 by default=quiet). More...

virtual void	Verbosity (enu_Verbosity ival)
	Sets the verbosity of this module (0 by default=quiet). More...

virtual int	Verbosity () const
	Gets the verbosity of this module. More...

Additional Inherited Members
Public Types inherited from Fun4AllBase
enum	enu_Verbosity { VERBOSITY_QUIET = 0 , VERBOSITY_SOME = 1 , VERBOSITY_MORE = 2 , VERBOSITY_EVEN_MORE = 3 , VERBOSITY_A_LOT = 4 , VERBOSITY_MAX = INT_MAX - 10 }

Protected Member Functions inherited from SubsysReco
	SubsysReco (const std::string &name="NONAME")

Protected Member Functions inherited from Fun4AllBase
	Fun4AllBase (const std::string &name="NONAME")

Protected Attributes inherited from Fun4AllBase
std::string	ThisName

int	verbosity
	The verbosity level. 0 means not verbose at all. More...

Detailed Description

Definition at line 62 of file VertexFit.h.

Constructor & Destructor Documentation

◆ VertexFit()

VertexFit::VertexFit ( const std::string & name = "VertexFit" )

In construction, initialize the projector for the vertex node

disable target optimization by default

disable evaluation by default

Definition at line 89 of file VertexFit.cxx.

References Node::getMeasurement(), Node::getMeasurementCov(), and Node::getProjector().

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◆ ~VertexFit()

VertexFit::~VertexFit ( )

Definition at line 130 of file VertexFit.cxx.

Member Function Documentation

◆ addHypothesis()

void VertexFit::addHypothesis	(	double	z,
		double	sigz = `50.`
	)

inline

Definition at line 90 of file VertexFit.h.

Referenced by setRecEvent().

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◆ addTrack() [1/3]

void VertexFit::addTrack	(	int	index,
		KalmanTrack &	_track
	)

Definition at line 515 of file VertexFit.cxx.

References KalmanTrack::getNodeList().

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◆ addTrack() [2/3]

void VertexFit::addTrack	(	int	index,
		SRecTrack &	_track
	)

Add one track parameter set into the fit.

Definition at line 531 of file VertexFit.cxx.

References TrkPar::_covar_kf, TrkPar::_state_kf, TrkPar::_z, SRecTrack::getCovariance(), SRecTrack::getStateVector(), and SRecTrack::getZ().

Referenced by setRecEvent().

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◆ addTrack() [3/3]

void VertexFit::addTrack	(	int	index,
		TrkPar &	_trkpar
	)

Definition at line 541 of file VertexFit.cxx.

◆ bookEvaluation()

void VertexFit::bookEvaluation ( std::string evalFileName = "vtx_eval.root" )

Evaluation.

Definition at line 672 of file VertexFit.cxx.

Referenced by Init().

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◆ enable_fit_target_center()

void VertexFit::enable_fit_target_center ( )

inline

Definition at line 76 of file VertexFit.h.

◆ enableOptimization()

void VertexFit::enableOptimization ( )

inline

Enable the optimization of final dimuon vertex z position.

Definition at line 74 of file VertexFit.h.

◆ End()

int VertexFit::End ( PHCompositeNode * )

virtual

Called at the end of all processing.

Reimplemented from SubsysReco.

Definition at line 205 of file VertexFit.cxx.

References Fun4AllReturnCodes::EVENT_OK.

◆ fillEvaluation()

void VertexFit::fillEvaluation ( )

Definition at line 698 of file VertexFit.cxx.

Referenced by setRecEvent().

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◆ findDimuonVertexFast()

double VertexFit::findDimuonVertexFast	(	SRecTrack &	track1,
		SRecTrack &	track2
	)

Definition at line 413 of file VertexFit.cxx.

References FMAGSTR, SRecTrack::getCharge(), and SRecTrack::swimToVertex().

Referenced by setRecEvent().

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◆ findSingleMuonVertex() [1/3]

double VertexFit::findSingleMuonVertex ( Node & _node_start )

Definition at line 645 of file VertexFit.cxx.

References findSingleMuonVertex(), Node::getFiltered(), Node::getPredicted(), Node::getSmoothed(), Node::isFilterDone(), and Node::isSmoothDone().

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◆ findSingleMuonVertex() [2/3]

double VertexFit::findSingleMuonVertex ( SRecTrack & _track )

Definition at line 635 of file VertexFit.cxx.

References TrkPar::_covar_kf, TrkPar::_state_kf, TrkPar::_z, SRecTrack::getCovariance(), SRecTrack::getStateVector(), and SRecTrack::getZ().

Referenced by findSingleMuonVertex().

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◆ findSingleMuonVertex() [3/3]

double VertexFit::findSingleMuonVertex ( TrkPar & _trkpar_start )

Definition at line 664 of file VertexFit.cxx.

References TrkPar::_covar_kf, TrkPar::_state_kf, TrkPar::_z, GenFitExtrapolator::extrapolateToIP(), and GenFitExtrapolator::setInitialStateWithCov().

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◆ findVertex()

int VertexFit::findVertex ( )

Find the primary vertex.

break the iteration if the z0 converges

Definition at line 546 of file VertexFit.cxx.

References VtxPar::_r, KalmanFilter::fit_node(), Node::getChisq(), Node::getZ(), LogInfo, Node::resetFlags(), KalmanFilter::setCurrTrkpar(), Node::setZ(), and updateVertex().

Referenced by processOnePair().

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◆ get_eval_file_name()

const std::string& VertexFit::get_eval_file_name ( ) const

inline

Definition at line 124 of file VertexFit.h.

◆ getKFChisq()

double VertexFit::getKFChisq ( )

inline

Definition at line 111 of file VertexFit.h.

◆ getNTracks()

int VertexFit::getNTracks ( )

inline

Definition at line 112 of file VertexFit.h.

◆ getVertexZ0()

double VertexFit::getVertexZ0 ( )

inline

Gets.

Definition at line 109 of file VertexFit.h.

References VtxPar::_r.

Referenced by setRecEvent().

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◆ getVXChisq()

double VertexFit::getVXChisq ( )

inline

Definition at line 110 of file VertexFit.h.

Referenced by setRecEvent().

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◆ init()

void VertexFit::init ( )

Initialize and reset.

Two default starting points

Definition at line 441 of file VertexFit.cxx.

Referenced by setRecEvent().

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◆ Init()

int VertexFit::Init ( PHCompositeNode * )

virtual

Called during initialization, i.e. registered via Fun4AllServer::registerSubsystem(). Typically this is where you can book histograms, and e.g. register them to Fun4AllServer (so they can be output to file using Fun4AllServer::dumpHistos() method).

Reimplemented from SubsysReco.

Definition at line 140 of file VertexFit.cxx.

References bookEvaluation(), and Fun4AllReturnCodes::EVENT_OK.

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◆ InitRun()

int VertexFit::InitRun ( PHCompositeNode * )

virtual

Called for first event when run number is known. Typically this is where you may want to fetch data from database, because you know the run number.

Single track finding doesn't require a propagation matrix

Reimplemented from SubsysReco.

Definition at line 147 of file VertexFit.cxx.

References KalmanFilter::enableDumpCorrection(), Fun4AllReturnCodes::EVENT_OK, FMAGSTR, PHFlag::get_DoubleFlag(), PHFieldUtility::GetFieldMapNode(), PHField::identify(), GenFitExtrapolator::init(), recoConsts::instance(), KalmanFilter::instance(), KMAGSTR, GenFitExtrapolator::setLengthCalc(), GenFitExtrapolator::setPropCalc(), and Fun4AllBase::verbosity.

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◆ print()

void VertexFit::print ( )

Debugging output.

Definition at line 754 of file VertexFit.cxx.

◆ process_event()

int VertexFit::process_event ( PHCompositeNode * )

virtual

Called for each event. This is where you do the real work.

Reimplemented from SubsysReco.

Definition at line 185 of file VertexFit.cxx.

References SRecEvent::clearDimuons(), Fun4AllReturnCodes::EVENT_OK, SRecEvent::identify(), LogInfo, setRecEvent(), SRecEvent::setRecStatus(), Fun4AllBase::Verbosity(), Fun4AllBase::verbosity, and Fun4AllBase::VERBOSITY_A_LOT.

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◆ processOnePair()

int VertexFit::processOnePair ( )

After setting both tracks and hypothesis, start the iteration.

Definition at line 474 of file VertexFit.cxx.

References VtxPar::_r, findVertex(), LogInfo, and setStartingVertex().

Referenced by setRecEvent().

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◆ set_eval_file_name()

void VertexFit::set_eval_file_name ( const std::string & evalFileName )

inline

Definition at line 128 of file VertexFit.h.

◆ setControlParameter()

void VertexFit::setControlParameter	(	int	nMaxIteration,
		double	tolerance
	)

inline

Set the convergence control parameters.

Definition at line 79 of file VertexFit.h.

◆ setRecEvent()

int VertexFit::setRecEvent	(	SRecEvent *	recEvent,
		int	sign1 = `1`,
		int	sign2 = `-1`
	)

Set the SRecEvent, main external call the use vertex fit.

Definition at line 259 of file VertexFit.cxx.

References VtxPar::_r, addHypothesis(), addTrack(), SRecDimuon::calcVariables(), SRecDimuon::chisq_dump, SRecDimuon::chisq_kf, SRecDimuon::chisq_single, SRecDimuon::chisq_target, SRecDimuon::chisq_upstream, SRecDimuon::chisq_vx, fillEvaluation(), findDimuonVertexFast(), SRecEvent::getChargedTrackIDs(), SRecTrack::getChisqDump(), SRecTrack::getChisqTarget(), SRecTrack::getChisqUpstream(), SRecTrack::getChisqVertex(), SRecTrack::getDumpPos(), SRecEvent::getEventID(), SRecTrack::getMomentumVertex(), SRecEvent::getNDimuons(), SRecEvent::getRunID(), SRecTrack::getTargetPos(), SRecEvent::getTargetPos(), SRecEvent::getTrack(), SRecTrack::getVertex(), getVertexZ0(), getVXChisq(), init(), SRecEvent::insertDimuon(), SRecTrack::isValid(), KMAGSTR, LogInfo, SRecDimuon::p_neg, SRecDimuon::p_neg_single, SRecDimuon::p_pos, SRecDimuon::p_pos_single, processOnePair(), SRecDimuon::proj_dump_neg, SRecDimuon::proj_dump_pos, SRecDimuon::proj_target_neg, SRecDimuon::proj_target_pos, SRecTrack::setZVertex(), SRecDimuon::trackID_neg, SRecDimuon::trackID_pos, Fun4AllBase::Verbosity(), Fun4AllBase::VERBOSITY_A_LOT, VFEXIT_FAIL_DIMUONPAIR, VFEXIT_FAIL_ITERATION, VFEXIT_SUCCESS, SRecDimuon::vtx, SRecDimuon::vtx_neg, and SRecDimuon::vtx_pos.

Referenced by process_event().

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◆ setStartingVertex()

void VertexFit::setStartingVertex	(	double	z_start,
		double	sigz_start
	)

Initialize the starting vertex with a guess and large error

Definition at line 458 of file VertexFit.cxx.

References VtxPar::_cov, and VtxPar::_r.

Referenced by processOnePair().

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◆ updateVertex()

void VertexFit::updateVertex ( )

Core function, update the vertex prediction according to the track info.

Set the projector matrix from track state vector to the coordinate

Definition at line 601 of file VertexFit.cxx.

References VtxPar::_cov, TrkPar::_covar_kf, VtxPar::_r, TrkPar::_state_kf, SMatrix::getABCt(), SMatrix::getABtC(), SMatrix::getAtBC(), Node::getFiltered(), and SMatrix::invertMatrix().

Referenced by findVertex().

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

/dev/shm/kenichi/update-github-e1039-doc/e1039-core/packages/reco/ktracker/VertexFit.h
/dev/shm/kenichi/update-github-e1039-doc/e1039-core/packages/reco/ktracker/VertexFit.cxx

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ VertexFit()

◆ ~VertexFit()

Member Function Documentation

◆ addHypothesis()

◆ addTrack() [1/3]

◆ addTrack() [2/3]

◆ addTrack() [3/3]

◆ bookEvaluation()

◆ enable_fit_target_center()

◆ enableOptimization()

◆ End()

◆ fillEvaluation()

◆ findDimuonVertexFast()

◆ findSingleMuonVertex() [1/3]

◆ findSingleMuonVertex() [2/3]

◆ findSingleMuonVertex() [3/3]

◆ findVertex()

◆ get_eval_file_name()

◆ getKFChisq()

◆ getNTracks()

◆ getVertexZ0()

◆ getVXChisq()

◆ init()

◆ Init()

◆ InitRun()

◆ print()

◆ process_event()

◆ processOnePair()

◆ set_eval_file_name()

◆ setControlParameter()

◆ setRecEvent()

◆ setStartingVertex()

◆ updateVertex()