ForwardTrackMaker Class Reference

Inheritance diagram for ForwardTrackMaker:

Public Member Functions
const std::vector < GenfitTrackResult > &	getTrackResults () const
const std::vector< Seed_t > &	getTrackSeeds () const
const EventStats &	getEventStats () const
void	Clear ()
void	setConfigFile (std::string cf)
	Set the Config File object. More...
void	setSaveCriteriaValues (bool save)
	Set the Save Criteria Values object. More...
void	setConfig (FwdTrackerConfig cfg)
void	setData (std::shared_ptr< FwdDataSource >data)
virtual void	initialize (TString geoCache, bool genHistograms)
	Initialize FwdTracker. More...
std::vector < KiTrack::ICriterion * >	loadCriteria (string path)
	Loads Criteria from XML configuration. Utility function for loading criteria from XML config. More...
void	clearCriteria (std::vector< KiTrack::ICriterion * > &crits)
	Clear the loaded criteria. More...
std::vector< float >	getCriteriaValues (std::string crit_name)
	Get the Criteria Values object. More...
std::vector< std::map < std::string, float > >	getCriteriaAllValues (std::string crit_name)
	Get the Criteria All Values object. More...
std::vector< int >	getCriteriaTrackIds (std::string crit_name)
	Get the Criteria Track Ids object. More...
void	clearSavedCriteriaValues ()
	Clear the saved values for two hit and three hit criteria.
size_t	nHitsInHitMap (FwdDataSource::HitMap_t &hitmap)
	Determine the total num of hits in the hitmap. More...
void	removeHits (FwdDataSource::HitMap_t &hitmap, std::vector< Seed_t > &tracks)
	Remove used hits from the hit map. More...
void	mergeHitmaps (FwdDataSource::HitMap_t &hitmap1, FwdDataSource::HitMap_t &hitmap2)
	merges the FST and FTT hitmaps into a single hitmap The FTT hits are shifted by the number of FST sectors More...
void	cleanup ()
	cleanup the event-wise data structures More...
bool	useMcTrackFinding ()
void	findTrackSeeds ()
	Perform the track finding Creates a list of track seeds from the hitmaps Retrieve them using getTrackSeeds()
std::vector < genfit::GFRaveVertex * >	findFwdVertices (const vector< GenfitTrackResult > &globalTracks)
GenfitTrackResult	fitTrack (Seed_t &seed, TVector3 *momentumSeedState=nullptr)
	Perform a single fit from seed points. More...
void	doTrackFitting (const std::vector< Seed_t > &trackSeeds)
	Loop on track seeds and fit each one. More...
void	doMcTrackFinding (FwdDataSource::McTrackMap_t &mcTrackMap, int seedSource)
	MC track finding builds track seeds from available hits using MC association. More...
size_t	sliceHitMapInPhi (FwdDataSource::HitMap_t &inputMap, FwdDataSource::HitMap_t &outputMap, float phi_min, float phi_max)
	Slices a hitmap into a phi section. More...
vector< Seed_t >	doSeedFindingOnHitmapSubset (size_t iIteration, FwdDataSource::HitMap_t &hitmap)
	Does track finding steps on a subset of hits (phi slice) More...
void	doSeedFindingIteration (size_t iIteration, FwdDataSource::HitMap_t &hitmap)
	Main tracking procedure. More...
void	addFstHitsMc (GenfitTrackResult &gtr)
	Adds compatible FST hits to tracks seeded with FTT.
void	addFttHits (GenfitTrackResult &gtr, size_t disk)
	Adds compatible FTT hits to tracks seeded with FST. More...
void	addFttHitsMc (GenfitTrackResult &gtr)
	Adds compatible FTT hits using MC info.
void	addFstHits (GenfitTrackResult &gtr, size_t disk)
	Adds compatible FST hits to a track. More...
Seed_t	findFstHitsNearProjectedState (Seed_t &available_hits, genfit::MeasuredStateOnPlane &msp, double dphi=0.004 *20.5, double dr=2.75 *2)
	Finds FST hits near projected state. More...
Seed_t	findFttHitsNearProjectedState (Seed_t &available_hits, genfit::MeasuredStateOnPlane &msp, double dx=1.5, double dy=1.5)
	Finds FTT hits near projected state. More...
bool	getSaveCriteriaValues ()
std::vector < KiTrack::ICriterion * >	getTwoHitCriteria ()
std::vector < KiTrack::ICriterion * >	getThreeHitCriteria ()
TrackFitter *	getTrackFitter ()
void	setEventVertex (TVector3 v, TMatrixDSym cov)
TVector3	getEventVertex ()

Protected Types
enum	SeedSource { kFstSeed = 0, kFttSeed, kSimSeed, kSeqSeed }

Protected Attributes
unsigned long long int	nEvents
bool	mDoTrackFitting = true
bool	mSaveCriteriaValues = false
int	mSeedSource = 1
FwdTrackerConfig	mConfig
std::string	mConfigFile
size_t	mTotalHitsRemoved
std::vector< GenfitTrackResult >	mTrackResults
std::vector< Seed_t >	mTrackSeeds
std::vector< Seed_t >	mTrackSeedsThisIteration
EventStats	mEventStats
TVector3	mEventVertex
FwdHit	mEventVertexHit
genfit::GFRaveVertexFactory	mGFRVertices
std::shared_ptr< FwdDataSource >	mDataSource
TrackFitter *	mTrackFitter = nullptr
std::vector < KiTrack::ICriterion * >	mTwoHitCrit
std::vector < KiTrack::ICriterion * >	mThreeHitCrit
TString	mGeoCache

Detailed Description

Definition at line 249 of file FwdTracker.h.

Member Function Documentation

void ForwardTrackMaker::addFstHits ( GenfitTrackResult &  gtr, size_t  disk  )

inline

Adds compatible FST hits to a track.

Parameters

gtr	: The GenfitTrackResult to add FST hits to
disk	: The FST disk number

Definition at line 1419 of file FwdTracker.h.

void ForwardTrackMaker::addFttHits ( GenfitTrackResult &  gtr, size_t  disk  )

inline

Adds compatible FTT hits to tracks seeded with FST.

Parameters

gtr	: The GenfitTrackResult to add FTT hits to
disk	: The FTT disk number

Returns

Seed_t : The combined seed points

Definition at line 1348 of file FwdTracker.h.

void ForwardTrackMaker::cleanup ( )

inline

cleanup the event-wise data structures

Definition at line 523 of file FwdTracker.h.

void ForwardTrackMaker::clearCriteria ( std::vector< KiTrack::ICriterion * > &  crits )

inline

Clear the loaded criteria.

Parameters

crits

: vector of ICriterion pointers to properly clear

Definition at line 349 of file FwdTracker.h.

void ForwardTrackMaker::doMcTrackFinding ( FwdDataSource::McTrackMap_t &  mcTrackMap, int  seedSource  )

inline

MC track finding builds track seeds from available hits using MC association.

Parameters

mcTrackMap	: Mc tracks
useFttAsSource	: Use FTT for seeds or (false) use Fst

Definition at line 983 of file FwdTracker.h.

void ForwardTrackMaker::doSeedFindingIteration ( size_t  iIteration, FwdDataSource::HitMap_t &  hitmap  )

inline

Main tracking procedure.

Parameters

iIteration	: The track iteration
hitmap	: the hitmap of available hits per plane

Definition at line 1229 of file FwdTracker.h.

vector<Seed_t> ForwardTrackMaker::doSeedFindingOnHitmapSubset ( size_t  iIteration, FwdDataSource::HitMap_t &  hitmap  )

inline

Does track finding steps on a subset of hits (phi slice)

doSeedFindingOnHitmapSubset

Parameters

iIteration,:	tracking iteration (for determining params)
hitmap,:	the hitmap to use, should already be subset of original

Returns

a list of track seeds

Definition at line 1079 of file FwdTracker.h.

void ForwardTrackMaker::doTrackFitting ( const std::vector< Seed_t > &  trackSeeds )

inline

Loop on track seeds and fit each one.

Track fitting proceeds in 3 possible iterations

1. Fit seed points (without PV)
2. Look for additional hits in the other tracking detector
3. Refit the track with the additional hits
4. Refit the track with the primary vertex
5. look again and refit any additional hits

Parameters

trackSeeds

: Track seeds

Definition at line 728 of file FwdTracker.h.

References GenfitTrackResult::setDCA().

Seed_t ForwardTrackMaker::findFstHitsNearProjectedState ( Seed_t &  available_hits, genfit::MeasuredStateOnPlane &  msp, double  dphi = 0.004 * 20.5, double  dr = 2.75 * 2  )

inline

Finds FST hits near projected state.

Parameters

available_hits	: FST hits to consider
msp	: measured state on plabe from existing track projection
dphi	: search distance in phi
dr	: search distance in r

Returns

Seed_t : compatible FST hits

Definition at line 1459 of file FwdTracker.h.

Seed_t ForwardTrackMaker::findFttHitsNearProjectedState ( Seed_t &  available_hits, genfit::MeasuredStateOnPlane &  msp, double  dx = 1.5, double  dy = 1.5  )

inline

Finds FTT hits near projected state.

Parameters

available_hits	: FTT hits to consider
msp	: measured state on plane from existing track fit projection
dx	: search distance in x
dy	: search distance in y

Returns

compatible FTT hits

Definition at line 1490 of file FwdTracker.h.

GenfitTrackResult ForwardTrackMaker::fitTrack ( Seed_t &  seed, TVector3 *  momentumSeedState = nullptr  )

inline

Perform a single fit from seed points.

Parameters

seed	: seed points from either FTT or FST
includeVertex	: include the primary vertex in the fit or not

Returns

GenfitTrackResult : result of the fit

Definition at line 675 of file FwdTracker.h.

std::vector<std::map < std::string , float > > ForwardTrackMaker::getCriteriaAllValues ( std::string  crit_name )

inline

Get the Criteria All Values object.

Parameters

crit_name

: Criteria values to get

Returns

std::vector<std::map < std::string , float >> : map of values

Definition at line 394 of file FwdTracker.h.

std::vector<int> ForwardTrackMaker::getCriteriaTrackIds ( std::string  crit_name )

inline

Get the Criteria Track Ids object.

Parameters

crit_name

: Name of criteria to get track ids for

Returns

std::vector<int> : list of track ids

Definition at line 423 of file FwdTracker.h.

std::vector<float> ForwardTrackMaker::getCriteriaValues ( std::string  crit_name )

inline

Get the Criteria Values object.

Parameters

crit_name

: Criteria to get

Returns

std::vector<float> : list of values

Definition at line 365 of file FwdTracker.h.

virtual void ForwardTrackMaker::initialize ( TString  geoCache, bool  genHistograms  )

inlinevirtual

Initialize FwdTracker.

Parameters

geoCache	: name of cached geometry file
genHistograms	: generate histograms

Reimplemented in ForwardTracker.

Definition at line 295 of file FwdTracker.h.

Referenced by ForwardTracker::initialize().

std::vector<KiTrack::ICriterion *> ForwardTrackMaker::loadCriteria ( string  path )

inline

Loads Criteria from XML configuration. Utility function for loading criteria from XML config.

Parameters

path	: path in config to load

Returns

vector of ICriterion pointers

Definition at line 309 of file FwdTracker.h.

void ForwardTrackMaker::mergeHitmaps ( FwdDataSource::HitMap_t &  hitmap1, FwdDataSource::HitMap_t &  hitmap2  )

inline

merges the FST and FTT hitmaps into a single hitmap The FTT hits are shifted by the number of FST sectors

Parameters

hitmap1,:	FST hitmap
hitmap2,:	FTT hitmap

Returns

void

Definition at line 510 of file FwdTracker.h.

size_t ForwardTrackMaker::nHitsInHitMap ( FwdDataSource::HitMap_t &  hitmap )

inline

Determine the total num of hits in the hitmap.

Parameters

hitmap

: hitmap to consider

Returns

size_t : total num of hits

Definition at line 472 of file FwdTracker.h.

void ForwardTrackMaker::removeHits ( FwdDataSource::HitMap_t &  hitmap, std::vector< Seed_t > &  tracks  )

inline

Remove used hits from the hit map.

Parameters

hitmap	: hitmap with hits used this round
tracks	: tracks formed from hits

Definition at line 486 of file FwdTracker.h.

void ForwardTrackMaker::setConfigFile ( std::string  cf )

inline

Set the Config File object.

Parameters

cf	: config filename

Definition at line 271 of file FwdTracker.h.

void ForwardTrackMaker::setSaveCriteriaValues ( bool  save )

inline

Set the Save Criteria Values object.

Parameters

save	: true to save crit values

Definition at line 280 of file FwdTracker.h.

size_t ForwardTrackMaker::sliceHitMapInPhi ( FwdDataSource::HitMap_t &  inputMap, FwdDataSource::HitMap_t &  outputMap, float  phi_min, float  phi_max  )

inline

Slices a hitmap into a phi section.

sliceHitMapInPhi

Parameters

inputMap	INPUT hitmap to process
outputMap	OUTPUT hitmap, will be cleared and filled with only the hits from inputMap that are within phi region
phi_min	The minimum phi to accept
phi_max	The maximum Phi to accept

Returns

The number of hits in the outputMap

Definition at line 1056 of file FwdTracker.h.

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

• StFwdTrackMaker/include/Tracker/FwdTracker.h