#include <coresoftware/blob/master/offline/packages/trackreco/PHSimpleVertexFinder.h>

Inheritance diagram for PHSimpleVertexFinder:

Collaboration diagram for PHSimpleVertexFinder:

Public Member Functions
	PHSimpleVertexFinder (const std::string &name="PHSimpleVertexFinder")
	Tracking includes.

	~PHSimpleVertexFinder () override

int	InitRun (PHCompositeNode *topNode) override

int	process_event (PHCompositeNode *topNode) override

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

void	setBeamLineCut (const double cut)

void	setDcaCut (const double cut)

void	setTrackQualityCut (double cut)

void	setRequireMVTX (bool set)

void	setNmvtxRequired (unsigned int n)

void	setOutlierPairCut (const double cut)

Public Member Functions inherited from SubsysReco
	~SubsysReco () override

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

virtual int	Init (PHCompositeNode *)

virtual int	Reset (PHCompositeNode *)
	Reset.

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

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

Public Member Functions inherited from Fun4AllBase
virtual	~Fun4AllBase ()

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

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

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

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

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

Private Types
using	matrix_t = Eigen::Matrix< double, 3, 3 >

Private Member Functions
int	GetNodes (PHCompositeNode *topNode)

int	CreateNodes (PHCompositeNode *topNode)

void	checkDCAs ()

void	findDcaTwoTracks (SvtxTrack tr1, SvtxTrack tr2)

double	dcaTwoLines (const Eigen::Vector3d &p1, const Eigen::Vector3d &v1, const Eigen::Vector3d &p2, const Eigen::Vector3d &v2, Eigen::Vector3d &PCA1, Eigen::Vector3d &PCA2)

std::vector< std::set < unsigned int > >	findConnectedTracks ()

void	removeOutlierTrackPairs ()

double	getMedian (std::vector< double > &v)

double	getAverage (std::vector< double > &v)

Private Attributes
SvtxTrackMap *	_track_map {nullptr}

SvtxTrack *	_track {nullptr}

SvtxVertexMap *	_svtx_vertex_map {nullptr}

double	_dcacut = 0.0080

double	_beamline_xy_cut = 0.2

double	_qual_cut = 5.0

bool	_require_mvtx = true

unsigned int	_nmvtx_required = 3

double	_track_pt_cut = 0.0

double	_outlier_cut = 0.015

std::multimap< unsigned int, unsigned int >	_vertex_track_map

std::multimap< unsigned int, std::pair< unsigned int, double > >	_track_pair_map

std::multimap< unsigned int, std::pair< unsigned int, std::pair< Eigen::Vector3d, Eigen::Vector3d > > >	_track_pair_pca_map

std::map< unsigned int, Eigen::Vector3d >	_vertex_position_map

std::map< unsigned int, matrix_t >	_vertex_covariance_map

std::set< unsigned int >	_vertex_set

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")

Detailed Description

Definition at line 29 of file PHSimpleVertexFinder.h.

View newest version in sPHENIX GitHub at line 29 of file PHSimpleVertexFinder.h

Member Typedef Documentation

using PHSimpleVertexFinder::matrix_t = Eigen::Matrix<double,3,3>

private

Definition at line 77 of file PHSimpleVertexFinder.h.

View newest version in sPHENIX GitHub at line 77 of file PHSimpleVertexFinder.h

Constructor & Destructor Documentation

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

Tracking includes.

Definition at line 40 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 40 of file PHSimpleVertexFinder.cc

PHSimpleVertexFinder::~PHSimpleVertexFinder ( )

override

Definition at line 47 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 47 of file PHSimpleVertexFinder.cc

Member Function Documentation

void PHSimpleVertexFinder::checkDCAs ( )

private

Definition at line 275 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 275 of file PHSimpleVertexFinder.cc

References _nmvtx_required, _qual_cut, _require_mvtx, _track_map, SvtxTrackMap::begin(), SvtxTrackMap::end(), findDcaTwoTracks(), TrkrDefs::getTrkrId(), TrkrDefs::mvtxId, and Fun4AllBase::Verbosity().

Referenced by process_event().

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int PHSimpleVertexFinder::CreateNodes ( PHCompositeNode * topNode )

private

Check that it is there

Get the tracking subnode

Definition at line 224 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 224 of file PHSimpleVertexFinder.cc

References _svtx_vertex_map, PHCompositeNode::addNode(), Fun4AllReturnCodes::EVENT_OK, and PHNodeIterator::findFirst().

Referenced by InitRun().

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double PHSimpleVertexFinder::dcaTwoLines	(	const Eigen::Vector3d &	p1,
		const Eigen::Vector3d &	v1,
		const Eigen::Vector3d &	p2,
		const Eigen::Vector3d &	v2,
		Eigen::Vector3d &	PCA1,
		Eigen::Vector3d &	PCA2
	)

private

Definition at line 370 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 370 of file PHSimpleVertexFinder.cc

References c, d, F, G, X, and Y.

Referenced by findDcaTwoTracks().

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int PHSimpleVertexFinder::End ( PHCompositeNode * )

overridevirtual

Called at the end of all processing.

Reimplemented from SubsysReco.

Definition at line 219 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 219 of file PHSimpleVertexFinder.cc

References Fun4AllReturnCodes::EVENT_OK.

std::vector< std::set< unsigned int > > PHSimpleVertexFinder::findConnectedTracks ( )

private

Definition at line 428 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 428 of file PHSimpleVertexFinder.cc

References _track_pair_map, it, and Fun4AllBase::Verbosity().

Referenced by process_event().

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void PHSimpleVertexFinder::findDcaTwoTracks	(	SvtxTrack *	tr1,
		SvtxTrack *	tr2
	)

private

Definition at line 330 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 330 of file PHSimpleVertexFinder.cc

References _beamline_xy_cut, _dcacut, _track_pair_map, _track_pair_pca_map, _track_pt_cut, dcaTwoLines(), SvtxTrack::get_id(), SvtxTrack::get_p(), SvtxTrack::get_pt(), SvtxTrack::get_px(), SvtxTrack::get_py(), SvtxTrack::get_pz(), SvtxTrack::get_x(), SvtxTrack::get_y(), SvtxTrack::get_z(), and Fun4AllBase::Verbosity().

Referenced by checkDCAs().

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double PHSimpleVertexFinder::getAverage ( std::vector< double > & v )

private

Definition at line 646 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 646 of file PHSimpleVertexFinder.cc

References it, and Fun4AllBase::Verbosity().

Referenced by removeOutlierTrackPairs().

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double PHSimpleVertexFinder::getMedian ( std::vector< double > & v )

private

Definition at line 613 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 613 of file PHSimpleVertexFinder.cc

References m, m2, and Fun4AllBase::Verbosity().

Referenced by removeOutlierTrackPairs().

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int PHSimpleVertexFinder::GetNodes ( PHCompositeNode * topNode )

private

Definition at line 260 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 260 of file PHSimpleVertexFinder.cc

References _track_map, Fun4AllReturnCodes::ABORTEVENT, Fun4AllReturnCodes::EVENT_OK, and PHWHERE.

Referenced by InitRun().

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int PHSimpleVertexFinder::InitRun ( PHCompositeNode * )

overridevirtual

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.

Reimplemented from SubsysReco.

Definition at line 53 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 53 of file PHSimpleVertexFinder.cc

References CreateNodes(), Fun4AllReturnCodes::EVENT_OK, and GetNodes().

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int PHSimpleVertexFinder::process_event ( PHCompositeNode * )

overridevirtual

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

If we didn't find any matches, try again with a slightly larger DCA cut

Iterate through the tracks and assign the closest vtx id to the track position for propagating back to the vtx. Catches any tracks that were missed or were not compatible with any of the identified vertices

If there is a vertex already assigned, keep going

Reimplemented from SubsysReco.

Definition at line 63 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 63 of file PHSimpleVertexFinder.cc

References _dcacut, _svtx_vertex_map, _track_map, _track_pair_map, _track_pair_pca_map, _vertex_covariance_map, _vertex_position_map, _vertex_set, _vertex_track_map, checkDCAs(), SvtxVertexMap::clear(), dz, Fun4AllReturnCodes::EVENT_OK, findConnectedTracks(), SvtxVertexMap::get(), SvtxTrackMap::get(), SvtxVertexMap::insert(), it, max, PHWHERE, pos(), removeOutlierTrackPairs(), SvtxTrack::set_vertex_id(), SvtxTrackMap::size(), track, and Fun4AllBase::Verbosity().