MarlinTrk Namespace Reference

Created by Steve Aplin on 9/16/11. More...

Classes
class	ConfigFlags
class	Factory
	Factory methods for creating the MarlinTrkSystem of a certain type: KalTest, DDKalTest, aidaTT,... Currently implemented: KalTest, DDKalTest. More...
class	HelixFit
class	IMarlinTrack
	Interface for generic tracks in MarlinTrk. More...
class	Exception
	Exception thrown in IMarlinTrk namespace (implemetations of IMarlinTrkSystem and IMarlinTrack). More...
class	IMarlinTrkSystem
	Base class for tracking system implementations in MarlinTrk. More...
class	MarlinAidaTT
	Interface to KaltTest Kalman fitter - instantiates and holds the detector geometry. More...
class	MarlinAidaTTTrack
class	MarlinDDKalTest
	Interface to KaltTest Kalman fitter - instantiates and holds the detector geometry. More...
class	MarlinDDKalTestTrack
class	MarlinKalTest
	Interface to KaltTest Kalman fitter - instantiates and holds the detector geometry. More...
class	MarlinKalTestTrack

Typedefs
typedef std::multimap< long, const aidaTT::ISurface * >	SurfMap

Functions
std::ostream &	operator<< (std::ostream &os, const ConfigFlags &cf)
std::string	errorCode (int error)
	Helper function to convert error return code to string.
int	createFinalisedLCIOTrack (IMarlinTrack *marlinTrk, std::vector< EVENT::TrackerHit * > &hit_list, IMPL::TrackImpl *track, bool fit_direction, EVENT::TrackState *pre_fit, float bfield_z, double maxChi2Increment=DBL_MAX)
	Takes a list of hits and uses the IMarlinTrack inferface to fit them using a supplied prefit containing a covariance matrix for the initialisation. More...
int	createFinalisedLCIOTrack (IMarlinTrack *marlinTrk, std::vector< EVENT::TrackerHit * > &hit_list, IMPL::TrackImpl *track, bool fit_direction, const EVENT::FloatVec &initial_cov_for_prefit, float bfield_z, double maxChi2Increment=DBL_MAX)
	Takes a list of hits and uses the IMarlinTrack inferface to fit them using a supplied covariance matrix for the initialisation. More...
int	createPrefit (std::vector< EVENT::TrackerHit * > &hit_list, IMPL::TrackStateImpl *pre_fit, float bfield_z, bool fit_direction)
	Provides the values of a track state from the first, middle and last hits in the hit_list. More...
int	createFit (std::vector< EVENT::TrackerHit * > &hit_list, IMarlinTrack *marlinTrk, EVENT::TrackState *pre_fit, float bfield_z, bool fit_direction, double maxChi2Increment=DBL_MAX)
	Takes a list of hits and uses the IMarlinTrack inferface to fit them using a supplied prefit containing a covariance matrix for the initialisation. More...
int	finaliseLCIOTrack (IMarlinTrack *marlinTrk, IMPL::TrackImpl *track, std::vector< EVENT::TrackerHit * > &hit_list, bool fit_direction, IMPL::TrackStateImpl *atLastHit=0, IMPL::TrackStateImpl *atCaloFace=0)
	Takes a fitted MarlinTrack, TrackImpl to record the fit and the hits which have been added to the fit. More...
void	addHitNumbersToTrack (IMPL::TrackImpl *track, std::vector< EVENT::TrackerHit * > &hit_list, bool hits_in_fit, UTIL::BitField64 &cellID_encoder)
	Set the subdetector hit numbers for the TrackImpl.
void	addHitNumbersToTrack (IMPL::TrackImpl *track, std::vector< std::pair< EVENT::TrackerHit *, double > > &hit_list, bool hits_in_fit, UTIL::BitField64 &cellID_encoder)
	Set the subdetector hit numbers for the TrackImpl.
std::string	cellIDString (int detElementID)
std::string	decodeILD (int detElementID)
int	createTrackStateAtCaloFace (IMarlinTrack *marlinTrk, IMPL::TrackStateImpl *track, EVENT::TrackerHit *trkhit, bool tanL_is_positive)

Detailed Description

Created by Steve Aplin on 9/16/11.

Implementation of the IMarlinTrack interface, using KalTest and KalDet to provide the needed functionality for a Kalman Filter.

DESY

C++ rewrite of the aleph Fortran routine TFITHL

! Fast helix fit

Input: NPT Number of 3-D points to be fit xf Array of X-values of points to be fit yf Array of Y-values of points to be fit zf Array of Z-values of points to be fit wf Array of 1/(sig(rphi))**2 for each point wzf Array of 1/(sig(z))**2 for each point iopt < 3 : error matrix calculated = 3 : 3-dimensional iteration

OUTPUT: vv0 = Helix parameter in perigee form ee0 = INVERSE OF ERROR MATRIX IN TRIANG. FORM chi2ph = CHI SQUARED = SUM (PHI DEVIATIONS/ERRORS)**2 CH2Z = CHI SQUARED = SUM (Z DEVIATIONS/ERRORS)**2

NOTE: DEGREES OF FREEDOM = 2*NPT-5

BASED ON SUBROUTINE CIRCLE REFERENCE: COMPUTER PHYSICS COMMUNICATIONS VOL 33,P329

AUTHORS: N. CHERNOV, G. OSOSKOV & M. POPPE Modified by: Fred Weber, 8 Jun 1989 Modified by: M.Cattaneo, 27-Jan-1998 Protect against arg SIN > 1.0

---

Version

Id:

F. Gaede DESY, Oct 2016

Version

Id:

MarlinDDKalTestTrack.h 3641 2012-06-13 13:04:36Z aplin

Author

S.Aplin, F. Gaede DESY

Version

Id:

MarlinKalTestTrack.h 5559 2016-06-07 16:14:02Z gaede

Author

S.Aplin, F. Gaede DESY

Function Documentation

int MarlinTrk::createFinalisedLCIOTrack	(	IMarlinTrack *	marlinTrk,
		std::vector< EVENT::TrackerHit * > &	hit_list,
		IMPL::TrackImpl *	track,
		bool	fit_direction,
		EVENT::TrackState *	pre_fit,
		float	bfield_z,
		double	maxChi2Increment = DBL_MAX
	)

Takes a list of hits and uses the IMarlinTrack inferface to fit them using a supplied prefit containing a covariance matrix for the initialisation.

The TrackImpl will have the 4 trackstates added to it , , and

References createFit(), and finaliseLCIOTrack().

Referenced by createFinalisedLCIOTrack().

int MarlinTrk::createFinalisedLCIOTrack	(	IMarlinTrack *	marlinTrk,
		std::vector< EVENT::TrackerHit * > &	hit_list,
		IMPL::TrackImpl *	track,
		bool	fit_direction,
		const EVENT::FloatVec &	initial_cov_for_prefit,
		float	bfield_z,
		double	maxChi2Increment = DBL_MAX
	)

Takes a list of hits and uses the IMarlinTrack inferface to fit them using a supplied covariance matrix for the initialisation.

The TrackImpl will have the 4 trackstates added to it , , and

References createFinalisedLCIOTrack(), and createPrefit().

int MarlinTrk::createFit	(	std::vector< EVENT::TrackerHit * > &	hit_list,
		IMarlinTrack *	marlinTrk,
		EVENT::TrackState *	pre_fit,
		float	bfield_z,
		bool	fit_direction,
		double	maxChi2Increment = DBL_MAX
	)

Takes a list of hits and uses the IMarlinTrack inferface to fit them using a supplied prefit containing a covariance matrix for the initialisation.

References MarlinTrk::IMarlinTrack::addHit(), MarlinTrk::IMarlinTrack::fit(), MarlinTrk::IMarlinTrack::initialise(), and MarlinTrk::IMarlinTrack::propagate().

Referenced by createFinalisedLCIOTrack().

int MarlinTrk::createPrefit	(	std::vector< EVENT::TrackerHit * > &	hit_list,
		IMPL::TrackStateImpl *	pre_fit,
		float	bfield_z,
		bool	fit_direction
	)

Provides the values of a track state from the first, middle and last hits in the hit_list.

References MarlinTrk::IMarlinTrack::backward.

Referenced by createFinalisedLCIOTrack().

int MarlinTrk::finaliseLCIOTrack	(	IMarlinTrack *	marlinTrk,
		IMPL::TrackImpl *	track,
		std::vector< EVENT::TrackerHit * > &	hit_list,
		bool	fit_direction,
		IMPL::TrackStateImpl *	atLastHit = 0,
		IMPL::TrackStateImpl *	atCaloFace = 0
	)

Takes a fitted MarlinTrack, TrackImpl to record the fit and the hits which have been added to the fit.

The TrackImpl will have the 4 trackstates added to it , , and . Note: the hit list is needed as the IMarlinTrack only contains the hits used in the fit, not the spacepoints (if any have been included) so as the strip hits cannot point to the space points we need to have the list so that they can be recorded in the LCIO TrackImpl

References MarlinTrk::IMarlinTrack::backward, MarlinTrk::IMarlinTrkSystem::createTrack(), errorCode(), MarlinTrk::Factory::getCurrentMarlinTrkSystem(), MarlinTrk::IMarlinTrack::getHitsInFit(), MarlinTrk::IMarlinTrack::getNDF(), MarlinTrk::IMarlinTrack::getOutliers(), MarlinTrk::IMarlinTrack::getTrackerHitAtPositiveNDF(), MarlinTrk::IMarlinTrack::getTrackState(), MarlinTrk::IMarlinTrkSystem::name(), MarlinTrk::IMarlinTrack::propagate(), MarlinTrk::IMarlinTrack::smooth(), and MarlinTrk::IMarlinTrack::toString().

Referenced by createFinalisedLCIOTrack().