EEmcGeomSimple Class Reference

EEMC simple geometry. More...

Inheritance diagram for EEmcGeomSimple:

List of all members.

Public Types
enum	Chiral_t { CounterClockwise = -1, Clockwise = 1, Undefined = 0 }
	chirality defined
Public Member Functions
	EEmcGeomSimple ()
	default constructor
virtual	~EEmcGeomSimple ()
	the destructor
TVector3	getTowerCenter (const UInt_t sec, const UInt_t sub, const UInt_t etabin) const
TVector3	getDirection (const Float_t detaBin, const Float_t dphiBin) const
bool	getTower (const TVector3 &r, int &sec, int &sub, int &etabin, Float_t &dphi, Float_t &deta) const
bool	getTower (const TVector3 &r, int &sec, int &sub, int &etabin) const
const Float_t *	getEtaBinRangeArray () const
Float_t	getZ1 () const
	gets lower Z edge of EEMC (preshower)
Float_t	getZ2 () const
	gets upper Z edge of EEMC (postshower)
Float_t	getZSMD () const
	gets z-depth of the SMD layer in EEMC
Float_t	getEtaMin () const
	gets lower eta limit
Float_t	getEtaMax () const
	gets upper eta bound
Float_t	getEtaMean (UInt_t eta) const
Float_t	getEtaHalfWidth (UInt_t eta) const
Float_t	getPhiMean (UInt_t sec) const
Float_t	getPhiMean (UInt_t sec, UInt_t ssec) const
Float_t	getPhiHalfWidth (UInt_t sec=0, UInt_t ssec=0) const
Float_t	getZMean () const
	returns the center of EEMC in z direction
Float_t	getZHalfWidth () const
	returns the half-width of EEMC (in z-direction)
Int_t	getNumberOfEtas () const
	gets number of tiles (eta bins)
Int_t	getNumberOfSectors () const
	gets number of sectors
Int_t	getNumberOfSubSectors () const
	gets number of subsectors
Float_t	getPhi0 () const
Bool_t	isClockwise () const
	is endcap labeling clockwise?
Bool_t	isCounterClockwise () const
	is endcap labeling clockwise?
Static Public Member Functions
static EEmcGeomSimple &	Instance ()
	returns a reference to a static instance of EEmcGeomSimple
Protected Member Functions
void	useDefaultGeometry ()
Static Protected Member Functions
static double	AdjustAngle (double alpha)
Protected Attributes
Float_t	mZ1
Float_t	mZ2
Float_t	mZSMD
Float_t *	mEtaBin
UInt_t	mNumEta
UInt_t	mNumSec
UInt_t	mNumSSec
Double_t	mPhi0
Chiral_t	mClock

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Detailed Description

EEMC simple geometry.

Author:

Piotr A. Zolnierczuk, Indiana University Cyclotron Facility

Date:

Jan 14, 2003 doxygen info here

Definition at line 22 of file EEmcGeomSimple.h.

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Member Function Documentation

TVector3 EEmcGeomSimple::getDirection	(	const Float_t	detaBin,
		const Float_t	dphiBin
	)			const

gets 'direction' vector from (0,0,0) toward a point on EEMC. detaBin is defined from [-0.5,11.5). [-0.5,0.5) returns a point within etabin 1, [0.5,1.5) within etabin 2, etc... dphiBin is defined similarly.

Parameters:

	detaBin	[-0.5,11.5)
	dphiBin	[-0.5,59.5)

Returns:

direction as TVector3

Definition at line 125 of file EEmcGeomSimple.cxx.

References getEtaHalfWidth(), getEtaMean(), getPhiHalfWidth(), getPhiMean(), and getZMean().

Float_t EEmcGeomSimple::getEtaHalfWidth

(

UInt_t

eta

)

const [inline]

returns the "half-width" of a tile (eta bin)

Parameters:

eta

tile index (eta bin) [0,mNumEta)

Definition at line 96 of file EEmcGeomSimple.h.

Referenced by StuDraw3DMuEvent::Endcaps(), getDirection(), getTower(), EEmcTTMMaker::Make(), and StMuEEDemoMaker::Make().

Float_t EEmcGeomSimple::getEtaMean

(

UInt_t

eta

)

const [inline]

returns the "mean" value of a tile (eta bin)

Parameters:

eta

tile index (eta bin) [0,mNumEta)

Definition at line 85 of file EEmcGeomSimple.h.

Referenced by StuDraw3DMuEvent::Endcaps(), getDirection(), getTower(), getTowerCenter(), EEmcTTMMaker::Make(), and StMuEEDemoMaker::Make().

Float_t EEmcGeomSimple::getPhi0

(

)

const [inline]

gets azimuthal angle of the edge of first sector (index 0) the edge is 'upper' for counter-clockwise, and 'lower' for clockwise indexing

Definition at line 171 of file EEmcGeomSimple.h.

Float_t EEmcGeomSimple::getPhiHalfWidth	(	UInt_t	sec = 0,
		UInt_t	ssec = 0
	)			const [inline]

returns the half-width (in phi) of a subsector

Parameters:

	sec	sector index [0,mNumSec )
	ssec	subsector index [0,mNumSSec)

Definition at line 138 of file EEmcGeomSimple.h.

Referenced by StuDraw3DMuEvent::Endcaps(), getDirection(), getTower(), EEmcTTMMaker::Make(), and StMuEEDemoMaker::Make().

Float_t EEmcGeomSimple::getPhiMean	(	UInt_t	sec,
		UInt_t	ssec
	)			const [inline]

returns the center value of phi for a subsector

Parameters:

	sec	sector index [0,mNumSec )
	ssec	subsector index [0,mNumSSec)

Definition at line 121 of file EEmcGeomSimple.h.

Float_t EEmcGeomSimple::getPhiMean

(

UInt_t

sec

)

const [inline]

returns the center value of phi for a given sector

Parameters:

sec

sector index [0,mNumSec)

Definition at line 107 of file EEmcGeomSimple.h.

Referenced by StuDraw3DMuEvent::Endcaps(), getDirection(), getTower(), getTowerCenter(), EEmcTTMMaker::Make(), and StMuEEDemoMaker::Make().

bool EEmcGeomSimple::getTower	(	const TVector3 &	r,
		int &	sec,
		int &	sub,
		int &	etabin
	)			const [inline]

gets tower ID given 'direction' vector r (only eta and phi are relevant, z is ignored)

Parameters:

	r	- direction vecrot
	sec	sector index [0,mNumSec )
	sub	subsector index [0,mNumSSec)
	etabin	tile/eta index [0,mNumEta )

Returns:

true if r points toward a tower and false if does not

Definition at line 65 of file EEmcGeomSimple.h.

References getTower().

bool EEmcGeomSimple::getTower	(	const TVector3 &	r,
		int &	sec,
		int &	sub,
		int &	etabin,
		Float_t &	dphi,
		Float_t &	deta
	)			const

gets tower ID given 'direction' vector r (only eta and phi are relevant, z is ignored)

Parameters:

	r	- direction vecrot
	sec	sector index [0,mNumSec )
	sub	subsector index [0,mNumSSec)
	etabin	tile/eta index [0,mNumEta )
	dphi	fractional distance from the tower center in units of phiHW=getPhiHalfWidth(sec,sub)
	deta	fractional distance from the tower center in units of etaHW=getEtaHalfWidth(etabin)

Returns:

true if r points toward a tower and false if does not

Definition at line 159 of file EEmcGeomSimple.cxx.

References getEtaHalfWidth(), getEtaMean(), getPhiHalfWidth(), getPhiMean(), and isClockwise().

Referenced by StEEmcPointMaker::buildSmdPoints(), StEEmcIUPointMaker::buildSmdPoints(), StEEmcMixMaker::fillPool(), StEEmcIUMixMaker::fillPool(), StEEmcPointMaker::fracp2t(), StEEmcIUPointMaker::fracp2t(), getTower(), and StEEmcA2EMaker::tower().

TVector3 EEmcGeomSimple::getTowerCenter	(	const UInt_t	sec,
		const UInt_t	sub,
		const UInt_t	etabin
	)			const

gets EEMC tower center given sector,subsector and eta indices (0-offset)

Parameters:

	sec	sector index [0,mNumSec )
	sub	subsector index [0,mNumSSec)
	etabin	tile/eta index [0,mNumEta )

Returns:

tower center as TVector3

Definition at line 104 of file EEmcGeomSimple.cxx.

References getEtaMean(), getPhiMean(), and getZMean().

Referenced by StEEmcCluster::add(), StEEmcIUClusterMaker::buildTowerClusters(), StEEmcClusterMaker::buildTowerClusters(), and StEEmcTower::direction().

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

• StEEmcUtil/EEmcGeom/EEmcGeomSimple.h
• StEEmcUtil/EEmcGeom/EEmcGeomSimple.cxx