TruthTracker Class Reference

Track creation based on MC truth. More...

#include <TruthTracker.h>

Inheritance diagram for TruthTracker:

Classes
struct	SimTrackerHitSortPredicate

Public Member Functions
virtual marlin::Processor *	newProcessor ()
virtual void	init ()
	Called at the begin of the job before anything is read. More...
virtual void	processRunHeader (LCRunHeader *run)
	Called for every run.
virtual void	processEvent (LCEvent *evt)
	Called for every event - the working horse.
virtual void	check (LCEvent *evt)
virtual void	end ()
	Called after data processing for clean up.

Protected Member Functions
const LCObjectVec *	getSimHits (TrackerHit *trkhit, const FloatVec *weights=NULL)
int	getDetectorID (TrackerHit *hit)
int	getSideID (TrackerHit *hit)
int	getLayerID (TrackerHit *hit)
int	getModuleID (TrackerHit *hit)
int	getSensorID (TrackerHit *hit)
LCCollection *	GetCollection (LCEvent *evt, std::string colName)
	helper function to get collection using try catch block
LCRelationNavigator *	GetRelations (LCEvent *evt, std::string RelName)
	helper function to get relations using try catch block
void	SetupInputCollections (LCEvent *evt)
	sets up the different collections
void	createTrack (MCParticle *mcp, UTIL::BitField64 &cellID_encoder, std::vector< std::pair< SimTrackerHit *, TrackerHit * > > &hit_list)
void	createTrack_old (MCParticle *mcp, UTIL::BitField64 &cellID_encoder, std::vector< TrackerHit * > &hit_list)
void	createTrack_iterative (MCParticle *mcp, UTIL::BitField64 &cellID_encoder, std::vector< std::pair< SimTrackerHit *, TrackerHit * > > &hit_list)
void	drawEvent ()

Protected Attributes
UTIL::BitField64 *	_encoder
std::string	_colNameMCParticles
	input MCParticle collection
std::vector< std::string >	_colNamesTrackerHits
	input TrackerHit collections
std::vector< std::string >	_colNamesTrackerHitRelations
	input relation collections
std::vector< LCCollection * >	_colTrackerHits
std::vector < LCRelationNavigator * >	_navTrackerHitRel
std::string	_output_track_col_name
	output track collection
LCCollectionVec *	_trackVec
std::string	_output_track_rel_name
	Output track relations.
LCCollectionVec *	_trackRelVec
std::string	_output_track_segments_col_name
	output track segments collection, used for tracks which cannot be formed from a single fit
LCCollectionVec *	_trackSegmentsVec
std::string	_output_track_segment_rel_name
	Output track segments relations, used for tracks which cannot be formed from a single fit.
LCCollectionVec *	_trackSegmentsRelVec
int	_nMCP
int	_n_run
int	_n_evt
float	_MCpThreshold
bool	_useMCParticleParametersFotInitOfFit
MarlinTrk::IMarlinTrkSystem *	_trksystem
	pointer to the IMarlinTrkSystem instance
bool	_runMarlinTrkDiagnostics
std::string	_MarlinTrkDiagnosticsName
bool	_FitTracksWithMarlinTrk
bool	_create_prefit_using_MarlinTrk
bool	_MSOn
bool	_ElossOn
bool	_SmoothOn
float	_initialTrackError_d0
float	_initialTrackError_phi0
float	_initialTrackError_omega
float	_initialTrackError_z0
float	_initialTrackError_tanL
bool	_UseIterativeFitting
bool	_UseEventDisplay
double	_maxChi2PerHit
double	_Bz
unsigned	_nCreatedTracks
EVENT::LCEvent *	_current_event
int	_detector_model_for_drawing
std::vector< int >	_colours
float	_helix_max_r
std::string	_trkSystemName
int	_fitDirection

Detailed Description

Track creation based on MC truth.

Input - Prerequisites

Needs a collections of LCIO TrackerHits.

Output

LCIO Track Collection

Parameters

TrackerHitsInputCollections	Name of the tracker hit input collections (default value: FTDTrackerHits SITTrackerHits TPCTrackerHits VXDTrackerHits )
TrackerHitsRelInputCollections	Name of the lcrelation collections, that link the TrackerHits to their SimTrackerHits. Have to be in same order as TrackerHitsInputCollections!!! (default value: FTDTrackerHitRelations SITTrackerHitRelations TPCTrackerHitRelations VXDTrackerHitRelations )
OutputTrackCollectionName	Name of the output Track collection (default value: TruthTracks )
OutputTrackRelCollection	Name of the MCParticle-Track Relations collection for output tracks (default value: TruthTracksMCP )
MCpThreshold	Transverse Momentum Threshold MC particles which will produce tracks GeV (default value: 0.1 )
FitTracksWithMarlinTrk	Fit the Tracks with MarlinTrk, otherwise take track parameters from MCParticle (default value: true )
MultipleScatteringOn	Use MultipleScattering in Fit (default value: true )
EnergyLossOn	Use Energy Loss in Fit (default value: true )
SmoothOn	Smooth All Mesurement Sites in Fit (default value: false )

Author

S. J. Aplin, DESY ; R. Glattauer, HEPHY

Member Function Documentation

void TruthTracker::init ( )

virtual

Called at the begin of the job before anything is read.

Use to initialize the processor, e.g. book histograms.

---

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

• TruthTracker.h
• TruthTracker.cc