#include <StiLocalTrackSeedFinder.h>

Inheritance diagram for StiLocalTrackSeedFinder:

Public Member Functions
	StiLocalTrackSeedFinder (const string &name, const string &description, Factory< StiKalmanTrack > trackFactory, StiHitContainer hitContainer, StiDetectorContainer *detectorContainer)

StiTrack *	findTrack (double rMin=0)

virtual void	clear ()
	Reset the tracker.

virtual void	initialize ()
	Initialize the finder.

virtual void	print () const

Filter< StiTrack > *	getTrackFilter ()
	Get the track filter currently used by the tracker.

virtual void	reset ()
	Reset the tracker.

virtual void	unset ()

bool	isReset ()

void	findTracks ()
	Find all tracks of the currently loaded event.

bool	find (StiTrack *track, int direction, double rmin=0)
	Find/extend the given track, in the given direction.

Public Member Functions inherited from StiTrackFinder
virtual void	startEvent ()
	Trigger class about new event.

virtual void	extendTracksToVertices (const std::vector< StiHit * > &vertices)

void	setComb (int comb=7)
	Set the vertex finder used by this tracker.

int	useComb () const

virtual void	FeedBack (int badGood)

Public Member Functions inherited from Named
void	setName (const string &newName)
	Set the name of the object.

const string &	getName () const
	Get the name of the object.

bool	isName (const string &aName) const
	Determine whether name equals given name.

Protected Member Functions
StiKalmanTrack *	makeTrack (StiHit *hit)

bool	extendHit (StiHit &hit)
	Extend hit looking for closest neighbor in z. More...

bool	extrapolate ()
	Extrapolate to next layer using straight line, add hit closest in z.

StiKalmanTrack *	initializeTrack (StiKalmanTrack *)

bool	fit (StiKalmanTrack *)

Protected Member Functions inherited from Named
	Named (const string &aName=" ")
	Only derived class are Named.

Protected Attributes
bool	_reset

Factory< StiKalmanTrack > *	_trackFactory

StiHitContainer *	_hitContainer

StiDetectorContainer *	_detectorContainer

StiSortedHitIterator	_hitIter

vector< StiHit * >	_seedHits

StiDefaultTrackFilter	_trackFilter

double	fRxyMin

Protected Attributes inherited from StiTrackFinder
int	mComb

Protected Attributes inherited from Named
string	_name

Friends
ostream &	operator<< (ostream &os, const StiLocalTrackSeedFinder &f)

Detailed Description

StiLocalTrackSeedFinder is a concrete implementation of StiTrackFinder. It is built from a collection of StiDetectorObjects, which it stores in a vector and orders properly, then uses each detector as a layer from which a one-point seed can be generated. It then proceeds to step inwards, iteratively making a local decision at each step.

Author: M.L. Miller (Yale Software) 10/01; Claude A Pruneau (Wayne State) Jan 2003

Definition at line 29 of file StiLocalTrackSeedFinder.h.

Member Function Documentation

bool StiLocalTrackSeedFinder::extendHit ( StiHit & hit )

protected

Extend hit looking for closest neighbor in z.

Extend the track seed starting from the given hit. The extension proceeds from the outside-in. It stops whenever the inner most detector hits have been used.

Definition at line 81 of file StiLocalTrackSeedFinder.cxx.

References StiHit::detector(), StiDetectorContainer::moveIn(), and StiDetectorContainer::setToDetector().

Referenced by makeTrack().

StiTrack * StiLocalTrackSeedFinder::findTrack ( double rMin = 0 )

virtual

Produce the next track seed Loop through available hits and attempt to form a track seed Only use hits that have not been already used in fully formed tracks.

Reimplemented from StiTrackFinder.

Definition at line 48 of file StiLocalTrackSeedFinder.cxx.

References makeTrack(), StiHit::timesUsed(), and StiHit::x().

StiKalmanTrack * StiLocalTrackSeedFinder::initializeTrack ( StiKalmanTrack * track )

protected

Initialize a kalman track on the basis of hits held in _seedHits

Definition at line 275 of file StiLocalTrackSeedFinder.cxx.

Referenced by makeTrack().

StiKalmanTrack * StiLocalTrackSeedFinder::makeTrack ( StiHit * hit )

protected

Make a track seed starting at the given hit. The track is extended iteratively with the "extendHit" method.

Definition at line 104 of file StiLocalTrackSeedFinder.cxx.