#include <StFmsGeometry.h>

Inheritance diagram for FMSCluster::StFmsGeometry:

Collaboration diagram for FMSCluster::StFmsGeometry:

Public Member Functions
	StFmsGeometry ()

	~StFmsGeometry ()

Bool_t	initialize (StFmsDbMaker *fmsDbMaker)

Float_t	xOffset (Int_t detectorId) const

Float_t	yOffset (Int_t detectorId) const

Float_t	z (Int_t detectorId) const

std::vector< Float_t >	towerWidths (Int_t detectorId) const

const fmsDetectorPosition_st *	find (Int_t detectorId) const

TVector3	localToGlobalCoordinates (Double_t x, Double_t y, Int_t detectorId) const

TVector3	columnRowToGlobalCoordinates (Double_t column, Double_t row, Int_t detectorId) const

Static Public Member Functions
static Bool_t	isNorth (Int_t detectorId)

Private Types
typedef std::map< int, const fmsDetectorPosition_st * >	Table

Private Member Functions
	StFmsGeometry (const StFmsGeometry &)

StFmsGeometry &	operator= (const StFmsGeometry &)

Private Attributes
Table	mPositions
	Detector ID: position information pairs. More...

Detailed Description

Wrapper around FMS detector geometry database information.

Provides convenience functions to access fmsDetectorPosition_st and its members via detector ID.

Definition at line 60 of file StFmsGeometry.h.

Member Typedef Documentation

typedef std::map<int, const fmsDetectorPosition_st*> FMSCluster::StFmsGeometry::Table

private

Definition at line 152 of file StFmsGeometry.h.

Constructor & Destructor Documentation

FMSCluster::StFmsGeometry::StFmsGeometry ( )

Constructor.

Definition at line 21 of file StFmsGeometry.cxx.

FMSCluster::StFmsGeometry::~StFmsGeometry ( )

Destructor.

Definition at line 23 of file StFmsGeometry.cxx.

FMSCluster::StFmsGeometry::StFmsGeometry ( const StFmsGeometry & )

private

Disallow copy construction. If a new StFmsGeometry is desired it should be explicitly created and initialised from the database to ensure validity.

Member Function Documentation

TVector3 FMSCluster::StFmsGeometry::columnRowToGlobalCoordinates	(	Double_t	column,
		Double_t	row,
		Int_t	detectorId
	)		const

Convert (column, row) coordinate position to global (x, y, z) in cm.

Column and row are real numbers to allow fractional row/column positions e.g. row = 2.6 means 60% of the way through the 2nd row (column and row both count from 1, not 0).

See also localToGlobalCoordinates().

Definition at line 126 of file StFmsGeometry.cxx.

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const fmsDetectorPosition_st * FMSCluster::StFmsGeometry::find ( Int_t detectorId ) const

Return the position information of a detector.

Returns NULL if the argument is an invalid detector ID or the geometry is uninitialized.

Definition at line 92 of file StFmsGeometry.cxx.

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Bool_t FMSCluster::StFmsGeometry::initialize ( StFmsDbMaker * fmsDbMaker )

Initialise geometry from the FMS database.

If the argument is NULL, attempt to locate an StFmsDbMaker in the current chain and use that. Return true if the geometry is initialised, false if it is not.

Definition at line 25 of file StFmsGeometry.cxx.

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Bool_t FMSCluster::StFmsGeometry::isNorth ( Int_t detectorId )

static

Returns true if the sub-system is a north detector.

Definition at line 139 of file StFmsGeometry.cxx.

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TVector3 FMSCluster::StFmsGeometry::localToGlobalCoordinates	(	Double_t	x,
		Double_t	y,
		Int_t	detectorId
	)		const

Convert local coordinates to global (x, y, z) coordinates in cm.

Local coordinates are defined relative to the sub-detector in question, not the STAR coordinate system e.g. x = 20 means 20cm from the edge of the detector.

Note that each detector counts "positive" from the beamline outward so e.g. x = 20 cm for a NORTH detector is -20 (modulo offets) in the global system (north is negative in STAR coordinates, while south is positive).

The z position corresponds to the front (beam-facing) plane of the detector.

Returns (0, 0, 0) for an invalid detector ID, or if StFmsGeometry is uninitialized.

Definition at line 101 of file StFmsGeometry.cxx.

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StFmsGeometry& FMSCluster::StFmsGeometry::operator= ( const StFmsGeometry & )

private

Disallow assignment. If a new StFmsGeometry is desired it should be explicitly created and initialised from the database to ensure validity.

std::vector< Float_t > FMSCluster::StFmsGeometry::towerWidths ( Int_t detectorId ) const

Return tower (x, y) widths in cm.

Database values fmsDetectorPosition_st::xwidth and ::ywidth.

Returns (0, 0) if the argument is an invalid detector ID or the geometry is uninitialized.

Definition at line 79 of file StFmsGeometry.cxx.

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Float_t FMSCluster::StFmsGeometry::xOffset ( Int_t detectorId ) const

Return the x coordinate offset of a detector in cm.

Gives the database value fmsDetectorPosition_st::xoffset.

Returns 0 if the argument is an invalid detector ID or the geometry is uninitialized.

Definition at line 55 of file StFmsGeometry.cxx.

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Float_t FMSCluster::StFmsGeometry::yOffset ( Int_t detectorId ) const

Return the y coordinate offset of a detector in cm.

Gives the database value fmsDetectorPosition_st::yoffset.

Returns 0 if the argument is an invalid detector ID or the geometry is uninitialized.

Definition at line 63 of file StFmsGeometry.cxx.

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Float_t FMSCluster::StFmsGeometry::z ( Int_t detectorId ) const

Return the z position of a detector in cm.

Gives the database value fmsDetectorPosition_st::zoffset.

Returns 0 if the argument is an invalid detector ID or the geometry is uninitialized.

Definition at line 71 of file StFmsGeometry.cxx.

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Member Data Documentation

Table FMSCluster::StFmsGeometry::mPositions

private

Detector ID: position information pairs.

Definition at line 163 of file StFmsGeometry.h.

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

/Users/thomasburton/Documents/projects/StFms/StRoot/StFmsPointMaker/StFmsGeometry.h
/Users/thomasburton/Documents/projects/StFms/StRoot/StFmsPointMaker/StFmsGeometry.cxx

Public Member Functions

Static Public Member Functions

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation