StEEmcGenericClusterMaker Class Reference

#include <StEEmcGenericClusterMaker.h>

Inheritance diagram for StEEmcGenericClusterMaker:

List of all members.

Classes
struct	EEmatch
Public Member Functions
	StEEmcGenericClusterMaker (const Char_t *name, const StEEmcA2EMaker *a2e=NULL)
virtual Int_t	Init ()
virtual Int_t	Make ()
void	makeHistograms ()
void	makeClusterMap ()
void	makeStEvent ()
void	makeTrackMap ()
virtual void	Clear (Option_t *opts="")
	User defined functions.
void	add (const StEEmcCluster &cluster)
	Add a tower (pre/postshower) cluster to the list of clusters.
void	add (const StEEmcSmdCluster &cluster)
	Add a smd cluster to the list of clusters.
void	remove (const StEEmcCluster &cluster)
void	remove (const StEEmcSmdCluster &cluster)
	Searches list of smd clusters and removes the matching cluster.
StEEmcClusterVec_t &	clusters (Int_t sec, Int_t layer)
	Return a vector of tower clusters.
const StEEmcClusterVec_t &	clusters (Int_t sec, Int_t layer) const
StEEmcSmdClusterVec_t &	smdclusters (Int_t sec, Int_t plane)
	Return a vector of smd clusters.
const StEEmcSmdClusterVec_t &	smdclusters (Int_t sec, Int_t plane) const
StEEmcCluster &	cluster (Int_t sector, Int_t layer, Int_t index)
const StEEmcCluster &	cluster (Int_t sector, Int_t layer, Int_t index) const
StEEmcSmdCluster &	smdcluster (Int_t sector, Int_t plane, Int_t index)
const StEEmcSmdCluster &	smdcluster (Int_t sector, Int_t plane, Int_t index) const
Int_t	numberOfTracks (const StEEmcCluster &cluster) const
Int_t	numberOfBackgroundTracks (const StEEmcCluster &cluster) const
StMuTrack *	track (const StEEmcCluster &cluster, Int_t index) const
StMuTrack *	backgroundTrack (const StEEmcCluster &cluster, Int_t index) const
Int_t	numberOfClusters (Int_t sector, Int_t layer) const
Int_t	numberOfClusters (Int_t layer) const
	returns the total number of clusters in a given layer
Int_t	numberOfClusters () const
	returns the total number of clusters summed over all layers
EEmatch &	clusterMatch (const StEEmcCluster &c)
const EEmatch &	clusterMatch (const StEEmcCluster &c) const
Int_t	lastClusterId () const
	Returns the current largest cluster ID.
Int_t	numberOfMatchingSmdClusters (const StEEmcCluster &cluster, Int_t plane) const
StEEmcSmdCluster &	matchingSmdCluster (const StEEmcCluster &cluster, Int_t plane, Int_t index)
const StEEmcSmdCluster &	matchingSmdCluster (const StEEmcCluster &cluster, Int_t plane, Int_t index) const
void	setTrackMatching (Float_t distance, Int_t layer)
Bool_t	extrapolateToZ (const StPhysicalHelixD &helix, const double z, TVector3 &r) const
	extrapolates helix to position z (borrowed from StEEmcPool/TTM)
void	buildHistograms (const StEEmcCluster &cluster)
Int_t	nextClusterId ()
Int_t	maxClusterId () const
virtual const char *	GetCVS () const
Protected Member Functions
virtual Int_t	buildTowerClusters ()
	builder for tower clusters
virtual Int_t	buildPreshowerClusters ()
	builder for preshower clusters (both layers)
virtual Int_t	buildPostshowerClusters ()
	builder for postshower clusters
virtual Int_t	buildSmdClusters ()
	builder for smd clusters
Bool_t	match (const StEEmcCluster &c1, const StEEmcCluster &c2) const
Bool_t	match (const StEEmcCluster &c1, const StEEmcSmdCluster &c2) const
Bool_t	match (const StEEmcSmdCluster &c1, const StEEmcSmdCluster &c2) const
Bool_t	match (const StEEmcCluster &c1, const StMuTrack *track) const
Bool_t	match (const StEEmcSmdCluster &c1, const StMuTrack *track) const
Bool_t	matchBackgroundTrack (const StEEmcCluster &c1, const StMuTrack *track) const
	ClassDef (StEEmcGenericClusterMaker, 1)
Protected Attributes
const StEEmcA2EMaker *	mEEanalysis
Int_t	mClusterId
std::vector< std::vector < StEEmcClusterVec_t > >	mTowerClusters
std::vector< std::vector < StEEmcSmdClusterVec_t > >	mSmdClusters
Int_t	mNumberOfClusters [6]
const EEmcGeomSimple *	mEEmcGeom
const EEmcSmdGeom *	mESmdGeom
const EEmcSmdMap *	mESmdMap
Int_t	mSmdMatchRange
std::map< Int_t, EEmatch >	mClusterMap
std::map< Int_t, std::vector < StMuTrack * > >	mClusterTrackMap
std::map< Int_t, std::vector < StMuTrack * > >	mBackgroundTrackMap
std::map< Int_t, EEmatch >	mTrackClusterMap
Float_t	mClusterTrackSeparation [6]

---

Detailed Description

Date:

11/21/2006

Author:

Jason C. Webb <Jason.Webb@Valpo.edu>

StEEmcGenericClusterMaker provides a generic framework for finding clusters in the endcap. The detailed algorithm is left up to the user, who should create a new class which inherits from this class. An example class, StMyClusterMaker, is provided:

Definition at line 92 of file StEEmcGenericClusterMaker.h.

---

Constructor & Destructor Documentation

StEEmcGenericClusterMaker::StEEmcGenericClusterMaker	(	const Char_t *	name,
		const StEEmcA2EMaker *	a2e = NULL
	)

Initialize storage banks for tower and SMD clusters. Both will be stored sector-wise and layer-wise.

Tower clusters are stored according to the sector in which we find their seed tower.

Layers: T=0, P=1, Q=2, R=3 / Planes: U=0, V=1

mTowerClusters[sector][layer] returns vector of tower clusters mSmdClusters[sector][plane] returns vector of SMD clusters

Tracks will be matched to clusters if they fall within a user-specified distance between the track extrapolated to the layer containing the cluster. (Tracks are extrapolated to the smd layer when matching tower clusters).

< default parameter: tower, dr<0.05 where dr=sqrt(deta^2+dphi^2)

< default parameter: preshower 1 dr<0.075

< default parameter: preshower 2 dr<0.075

< default parameter: postshower dr<0.075

< default parameter: smd u 3.0 strips

< default parameter: smd v 3.0 strips

Definition at line 24 of file StEEmcGenericClusterMaker.cxx.

References Clear().

---

Member Function Documentation

void StEEmcGenericClusterMaker::buildHistograms

(

const StEEmcCluster &

cluster

)

Builds histograms for SMD clusters matching the specified tower cluster. Histograms will be stored in the .hist branch of this maker. Histograms will follow a naming convention h[TUV]cluster[key]_[event] where [TUV] ...

StEEmcCluster& StEEmcGenericClusterMaker::cluster	(	Int_t	sector,
		Int_t	layer,
		Int_t	index
	)			[inline]

Return a specific cluster from a given sector, layer

Parameters:

	sector	specifies the sector id [0,11]
	layer	specifies which layer 0=T 1=P 2=Q 3=R
	index	specifies which cluster to return

Definition at line 140 of file StEEmcGenericClusterMaker.h.

Referenced by makeTrackMap().

EEmatch& StEEmcGenericClusterMaker::clusterMatch

(

const StEEmcCluster &

c

)

[inline]

Returns the clusters which match (see match()) the specified cluster

Definition at line 194 of file StEEmcGenericClusterMaker.h.

Referenced by matchingSmdCluster(), and numberOfMatchingSmdClusters().

Int_t StEEmcGenericClusterMaker::Make

(

)

[virtual]

The Make() method is the one responsible for calling the maker's InitRun(). Note that that InitRun() is called for real data and if both of the following are true

• a header exists
• the run number changes

This is the ONLY place calling the InitRun() routine.

check privilege to skip event

Reimplemented from StMaker.

Definition at line 93 of file StEEmcGenericClusterMaker.cxx.

References makeStEvent(), and makeTrackMap().

void StEEmcGenericClusterMaker::makeStEvent

(

)

First the eemc tower clusters

Next the pre and postshower clusters

Finally the U&V smd clusters

Definition at line 342 of file StEEmcGenericClusterMaker.cxx.

Referenced by Make().

void StEEmcGenericClusterMaker::makeTrackMap

(

)

loop over sectors

loop over layers

loop over sectors

loop over layers

Definition at line 243 of file StEEmcGenericClusterMaker.cxx.

References cluster(), StMuTrack::flag(), StMaker::GetName(), StMuDst::globalTracks(), match(), StMuDstMaker::muDst(), numberOfClusters(), StMuDst::primaryTracks(), and track().

Referenced by Make().

Bool_t StEEmcGenericClusterMaker::match	(	const StEEmcCluster &	c1,
		const StEEmcCluster &	c2
	)			const [protected]

Default methods to determine whether clusters in different layers match. Tower clusters match pre/postshower clusters if the seed towers are adjacent. Smd clusters match tower clusters if they fall within +/- mSmdMatchRange strips of the center of the seed tower.

Definition at line 452 of file StEEmcGenericClusterMaker.cxx.

References StEEmcTower::isNeighbor(), and StEEmcCluster::tower().

Referenced by add(), and makeTrackMap().

StEEmcSmdCluster & StEEmcGenericClusterMaker::matchingSmdCluster	(	const StEEmcCluster &	cluster,
		Int_t	plane,
		Int_t	index
	)

Returns a specific SMD cluster which matches the tower clster

Parameters:

	cluster	a tower cluster
	plane	0=U 1=V
	index	index of the SMD cluster

Definition at line 600 of file StEEmcGenericClusterMaker.cxx.

References clusterMatch().

Int_t StEEmcGenericClusterMaker::nextClusterId

(

)

[inline]

Utility method to provide the "next" cluster id. It's in public scope to allow later makers in the chain (i.e. the point maker) to form new clusters and assign a unique cluster id (key).

Definition at line 227 of file StEEmcGenericClusterMaker.h.

Referenced by add().

Int_t StEEmcGenericClusterMaker::numberOfClusters	(	Int_t	sector,
		Int_t	layer
	)			const [inline]

returns the total number of clusters in a given sector, layer

Parameters:

	sector	specifies the sector id [0,11]
	layer	specifies which layer 0=T 1=P 2=Q 3=R 4=U 5=V

Definition at line 165 of file StEEmcGenericClusterMaker.h.

Int_t StEEmcGenericClusterMaker::numberOfMatchingSmdClusters	(	const StEEmcCluster &	cluster,
		Int_t	plane
	)			const

Returns the number of matching SMD clusters for the given tower cluster and plane

Parameters:

	cluster	a tower cluster
	plane	0=U 1=V

Definition at line 594 of file StEEmcGenericClusterMaker.cxx.

References clusterMatch().

Int_t StEEmcGenericClusterMaker::numberOfTracks

(

const StEEmcCluster &

cluster

)

const [inline]

returns the number of tracks pointing at the specified cluster

Parameters:

cluster

Definition at line 152 of file StEEmcGenericClusterMaker.h.

void StEEmcGenericClusterMaker::remove

(

const StEEmcCluster &

cluster

)

[inline]

Searches list of tower (pre/postshower) clusters and removes the matching cluster.

Definition at line 123 of file StEEmcGenericClusterMaker.h.

void StEEmcGenericClusterMaker::setTrackMatching	(	Float_t	distance,
		Int_t	layer
	)			[inline]

Sets track-cluster matching parameters

Parameters:

distance

maximum separation in cm from the cluster centroid to the track for a match to be made.

Definition at line 214 of file StEEmcGenericClusterMaker.h.

StEEmcSmdCluster& StEEmcGenericClusterMaker::smdcluster	(	Int_t	sector,
		Int_t	plane,
		Int_t	index
	)			[inline]

return a specific cluster from a given sector, plane

Parameters:

	sector	specifies the sector id [0,11]
	plane	specifies which smd plane 0=U 1=V (note difference from "layer" definition)
	index	specifies which cluster to return

Definition at line 147 of file StEEmcGenericClusterMaker.h.

StMuTrack* StEEmcGenericClusterMaker::track	(	const StEEmcCluster &	cluster,
		Int_t	index
	)			const [inline]

return a pointer to a StMuTrack which points at the given cluster

Parameters:

	cluster	given a cluster, return a pointer to the track which matches it... yikes this shouldn't be unique...
	index	index of the track pointing to the cluster

Definition at line 159 of file StEEmcGenericClusterMaker.h.

Referenced by makeTrackMap().

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

• StEEmcPool/StEEmcClusterMaker/StEEmcGenericClusterMaker.h
• StEEmcPool/StEEmcClusterMaker/StEEmcGenericClusterMaker.cxx