#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	_base_dcacut = 0.0080

double	_active_dcacut = 0.080

double	_beamline_xy_cut = 0.2

double	_qual_cut = 10.0

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 = std::numeric_limits<int>::max() - 10 }

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

Detailed Description

Definition at line 28 of file PHSimpleVertexFinder.h.

View newest version in sPHENIX GitHub at line 28 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 39 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 39 of file PHSimpleVertexFinder.cc

PHSimpleVertexFinder::~PHSimpleVertexFinder ( )

override

Definition at line 46 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 46 of file PHSimpleVertexFinder.cc

Member Function Documentation

void PHSimpleVertexFinder::checkDCAs ( )

private

Definition at line 279 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 279 of file PHSimpleVertexFinder.cc

References _nmvtx_required, _qual_cut, _require_mvtx, _track_map, SvtxTrackMap::begin(), TrackSeed::begin_cluster_keys(), SvtxTrackMap::end(), TrackSeed::end_cluster_keys(), findDcaTwoTracks(), TrkrDefs::getTrkrId(), TrkrDefs::mvtxId, next, 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 228 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 228 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 386 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 386 of file PHSimpleVertexFinder.cc

References b1, Acts::PhysicalConstants::c, INTTVtxZ::dca, F, G, TauVsDIS_MachineLearning_Differentiation::X, and TauVsDIS_MachineLearning_Differentiation::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 223 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 223 of file PHSimpleVertexFinder.cc

References Fun4AllReturnCodes::EVENT_OK.

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

private

Definition at line 444 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 444 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 342 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 342 of file PHSimpleVertexFinder.cc

References _active_dcacut, _beamline_xy_cut, _track_pair_map, _track_pair_pca_map, _track_pt_cut, KFPMath::a2, b1, INTTVtxZ::dca, 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 662 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 662 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 629 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 629 of file PHSimpleVertexFinder.cc

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

Referenced by removeOutlierTrackPairs().

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int PHSimpleVertexFinder::GetNodes ( PHCompositeNode * topNode )

private

Definition at line 264 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 264 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 52 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 52 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 62 of file PHSimpleVertexFinder.cc.

View newest version in sPHENIX GitHub at line 62 of file PHSimpleVertexFinder.cc

References _active_dcacut, _base_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(), Acts::Test::cov, dz, Fun4AllReturnCodes::EVENT_OK, findConnectedTracks(), SvtxVertexMap::get(), SvtxTrackMap::get(), i, SvtxVertexMap::insert(), it, j, PHWHERE, Acts::Test::pos, removeOutlierTrackPairs(), SvtxTrack::set_vertex_id(), SvtxTrackMap::size(), and Fun4AllBase::Verbosity().