Utility for converting energy to signal over the triangular pad geometry (Bucharest prototype) More...

#include <CbmTrdTrianglePRF.h>

Inheritance diagram for CbmTrdTrianglePRF:

Collaboration diagram for CbmTrdTrianglePRF:

Public Types
enum	CbmTrdTrianglePRFDef { NC = 2 , NR = 1 }

Public Member Functions
	CbmTrdTrianglePRF (Float_t W, Float_t H, Int_t n=20)
	Build map.

virtual	~CbmTrdTrianglePRF ()

Bool_t	GetBin (Double_t x, Double_t y, Int_t &binx, Int_t &biny) const
	Find bin for point (x,y)

Double_t	GetChargeFraction () const
	Compute charge fraction on the current bin.

void	GetCurrentBin (Int_t &bx, Int_t &by) const
	Enquire the current status of the map iterator.

void	GetCurrentPad (Int_t &col, Int_t &row, Int_t &u) const
	Compute the pad corresponding to current bin.

void	GoToOriginX ()
	Move current binx to the origin binx0.

void	GoToOriginY ()
	Move current biny to the origin biny0.

Bool_t	NextBinX ()
	Move current bin to the right.

Bool_t	NextBinY ()
	Move current bin up.

Double_t	Norm () const

void	Print (Option_t *opt="") const

Bool_t	PrevBinX ()
	Move current bin to the left.

Bool_t	PrevBinY ()
	Move current bin down.

Bool_t	SetOrigin (Double_t x, Double_t y)
	Set map offset @ point (x,y)

Private Member Functions
	CbmTrdTrianglePRF (const CbmTrdTrianglePRF &ref)

CbmTrdTrianglePRF &	operator= (const CbmTrdTrianglePRF &ref)

Int_t	GetSide (const Float_t x, const Float_t y) const
	Define triangular pad type.

Private Attributes
Int_t	fN

Int_t	fBinx
	Current bin in the map - x direction.

Int_t	fBinx0
	Offset bin in the map - x direction.

Int_t	fBiny
	Current bin in the map - y direction.

Int_t	fBiny0
	Offset bin in the map - y direction.

Double_t	fX0
	Index of bin in the map corresponding to cluster center - y direction.

Double_t	fY0
	y coordinate of cluster

Double_t	fW
	pad width

Double_t	fH
	pad height

Double_t	fdW
	bin half width

Double_t	fdH
	bin half height

Double_t	fSlope
	slope of triangle H/W

Double_t	fNorm
	normalization factor for the 2D Gauss distribution

std::vector< Char_t >	fUp
	1 for the upper pad, -1 for the bottom pad and 0 on the boundary

std::vector< Double_t >	fX
	position of bin center along wires

std::vector< Double_t >	fY
	position of bin center across wires

TF1 *	fPRFx
	PRF model along wires.

TF1 *	fPRFy
	PRF model across wires.

Detailed Description

Utility for converting energy to signal over the triangular pad geometry (Bucharest prototype)

The class provides a binning which covers the pad plane area of NR x NC columns which might be activated by a particle. For each bin its center position in pad coordinates is stored in std vectors fX and fY. Three types of bins are known and saved in the fUp vector:

bin in the upper triangle [1]
bin in the lower triangle [-1]
bin on the slit between pads [0]
A list of functions is provided to navigate the map with self explanatory names NextBinX(), NextBinY(), PrevBinX(), PrevBinY(), GoToOriginX() and GoToOriginY()
A link to PRF is also provided via 2 TF1 fPRFx and fPRFy which should be initialized to the corresponding model.

Usage

For each hit the class should be initialized with the position of the hit expresed in pad coordinates by calling SetOrigin(). The map is navigated and the current bin is tracked internally. User can access it via a call to GetCurrentBin() for the indexes or in terms of cols/rows with GetCurrentPad(). For the current hit one can interogate the PRF model via GetChargeFraction() function.

Author: A.Bercuci aberc.nosp@m.uci@.nosp@m.niham.nosp@m..nip.nosp@m.ne.ro

Definition at line 31 of file CbmTrdTrianglePRF.h.

Member Enumeration Documentation

◆ CbmTrdTrianglePRFDef

enum CbmTrdTrianglePRF::CbmTrdTrianglePRFDef

Enumerator
NC	no. of neighbor columns (except the hit) to be considered in cluster definition
NR	no. of neighbor rows (except the hit) to be considered in cluster definition

Definition at line 33 of file CbmTrdTrianglePRF.h.

Constructor & Destructor Documentation

◆ CbmTrdTrianglePRF() [1/2]

CbmTrdTrianglePRF::CbmTrdTrianglePRF	(	Float_t	W,
		Float_t	H,
		Int_t	n = 20 )

Build map.

Parameters

W	column width in cm
H	row height in cm
n	no of bins requested for the map per column/row

Build the map for triangular pad integration. The dimension of the map is given by the no of adjacent columns/rows considered in the map (default 5 columns and 3 rows)

Definition at line 22 of file CbmTrdTrianglePRF.cxx.

References fdH, fdW, fH, fN, fNorm, fPRFx, fPRFy, fUp, fW, fX, fY, GetSide(), NC, and NR.

◆ ~CbmTrdTrianglePRF()

CbmTrdTrianglePRF::~CbmTrdTrianglePRF ( )

virtual

Definition at line 84 of file CbmTrdTrianglePRF.cxx.

References fPRFx, and fPRFy.

◆ CbmTrdTrianglePRF() [2/2]

CbmTrdTrianglePRF::CbmTrdTrianglePRF ( const CbmTrdTrianglePRF & ref )

private

Member Function Documentation

◆ GetBin()

Bool_t CbmTrdTrianglePRF::GetBin	(	Double_t	x,
		Double_t	y,
		Int_t &	binx,
		Int_t &	biny ) const

Find bin for point (x,y)

Parameters

x	coordinate along wires in pad coordinates
y	coordinate across wires in pad coordinates
binx	return bin index along wires in pad coordinates
biny	return bin index across wires in pad coordinates

Returns: true if point is in the map

Function looks for the bin containing the point (x,y). The function is optimized for points in the center column/pad of the map.

Definition at line 91 of file CbmTrdTrianglePRF.cxx.

References fdH, fdW, fN, fX, fY, x, and y.

Referenced by SetOrigin().

◆ GetChargeFraction()

Double_t CbmTrdTrianglePRF::GetChargeFraction ( ) const

Compute charge fraction on the current bin.

Returns: value of charge fraction according to PRF parametrization times the bin area

Compute charge fraction on the current bin

Definition at line 151 of file CbmTrdTrianglePRF.cxx.

References fBinx, fBiny, fdH, fdW, fN, fPRFx, fPRFy, fX, fX0, fY, and fY0.

Referenced by CbmTrdModuleSim2D::ScanPadPlane().

◆ GetCurrentBin()

void CbmTrdTrianglePRF::GetCurrentBin	(	Int_t &	bx,
		Int_t &	by ) const

inline

Enquire the current status of the map iterator.

Parameters

bx	on return contains x index of the current bin
by	on return contains y index of the current bin

Definition at line 66 of file CbmTrdTrianglePRF.h.

References fBinx, and fBiny.

◆ GetCurrentPad()

void CbmTrdTrianglePRF::GetCurrentPad	(	Int_t &	col,
		Int_t &	row,
		Int_t &	u ) const

Compute the pad corresponding to current bin.

Parameters

col	on return contains column offset wrt origin (0)
row	on return contains row offset wrt origin (0)
up	the type of triangular pad housing the current bin

Find the column/row for the current bin. The up parameter describe the pad holding the bin:
-1 bottom pad
0 on the split bin
1 up pad

Definition at line 162 of file CbmTrdTrianglePRF.cxx.

References fBinx, fBiny, fH, fN, fUp, fW, fX, fY, NC, and NR.

Referenced by CbmTrdModuleSim2D::ScanPadPlane().

◆ GetSide()

Int_t CbmTrdTrianglePRF::GetSide	(	const Float_t	x,
		const Float_t	y ) const

private

Define triangular pad type.

Parameters

x	position along wires in column coordinates
y	position across wires in column coordinates

Returns: 1 for upper pad and -1 for bottom

Define the type of triangular pad for the current bin defined by the position in the local column coordinates.
Return 1 for the upper pad and -1 for the bottom

Definition at line 178 of file CbmTrdTrianglePRF.cxx.

References fH, fSlope, fW, x, and y.

Referenced by CbmTrdTrianglePRF().

◆ GoToOriginX()

void CbmTrdTrianglePRF::GoToOriginX ( )

inline

Move current binx to the origin binx0.

Definition at line 81 of file CbmTrdTrianglePRF.h.

References fBinx, and fBinx0.

Referenced by CbmTrdModuleSim2D::ScanPadPlane().

◆ GoToOriginY()

void CbmTrdTrianglePRF::GoToOriginY ( )

inline

Move current biny to the origin biny0.

Definition at line 85 of file CbmTrdTrianglePRF.h.

References fBiny, and fBiny0.

Referenced by CbmTrdModuleSim2D::ScanPadPlane().

◆ NextBinX()

Bool_t CbmTrdTrianglePRF::NextBinX ( )

Move current bin to the right.

Returns: true if still in map

Move current bin to the right. Check we are still in the allocated map

Definition at line 200 of file CbmTrdTrianglePRF.cxx.

References fBinx, fN, and fX.

Referenced by CbmTrdModuleSim2D::ScanPadPlane().

◆ NextBinY()

Bool_t CbmTrdTrianglePRF::NextBinY ( )

Move current bin up.

Returns: true if still in map

Move current bin upwards. Check we are still in the allocated map

Definition at line 211 of file CbmTrdTrianglePRF.cxx.

References fBiny, and fN.

Referenced by CbmTrdModuleSim2D::ScanPadPlane().

◆ Norm()

Double_t CbmTrdTrianglePRF::Norm ( ) const

inline

Definition at line 96 of file CbmTrdTrianglePRF.h.

References fNorm.

Referenced by CbmTrdModuleSim2D::ScanPadPlane().

◆ operator=()

CbmTrdTrianglePRF & CbmTrdTrianglePRF::operator= ( const CbmTrdTrianglePRF & ref )

private

◆ PrevBinX()

Bool_t CbmTrdTrianglePRF::PrevBinX ( )

Move current bin to the left.

Returns: true if still in map

Move current bin to the left. Check we are still in the allocated map

Definition at line 234 of file CbmTrdTrianglePRF.cxx.

References fBinx, and fN.

Referenced by CbmTrdModuleSim2D::ScanPadPlane().

◆ PrevBinY()

Bool_t CbmTrdTrianglePRF::PrevBinY ( )

Move current bin down.

Returns: true if still in map

Move current bin downwards. Check we are still in the allocated map

Definition at line 245 of file CbmTrdTrianglePRF.cxx.

References fBiny.

Referenced by CbmTrdModuleSim2D::ScanPadPlane().

◆ Print()

void CbmTrdTrianglePRF::Print ( Option_t * opt = "" ) const

Definition at line 222 of file CbmTrdTrianglePRF.cxx.

References fdH, fdW, fN, fSlope, fUp, fX, and fY.

◆ SetOrigin()

Bool_t CbmTrdTrianglePRF::SetOrigin	(	Double_t	x,
		Double_t	y )

Set map offset @ point (x,y)

Parameters

x	coordinate along wires in pad coordinates
y	coordinate across wires in pad coordinates

Returns: true if point is in the map

Definition at line 256 of file CbmTrdTrianglePRF.cxx.

References fBinx, fBinx0, fBiny, fBiny0, fX0, fY0, GetBin(), x, and y.

Referenced by CbmTrdModuleSim2D::ScanPadPlane().

Member Data Documentation

◆ fBinx

Int_t CbmTrdTrianglePRF::fBinx

private

Current bin in the map - x direction.

Definition at line 129 of file CbmTrdTrianglePRF.h.

Referenced by GetChargeFraction(), GetCurrentBin(), GetCurrentPad(), GoToOriginX(), NextBinX(), PrevBinX(), and SetOrigin().

◆ fBinx0

Int_t CbmTrdTrianglePRF::fBinx0

private

Offset bin in the map - x direction.

Index of current bin in the map - x direction

Definition at line 131 of file CbmTrdTrianglePRF.h.

Referenced by GoToOriginX(), and SetOrigin().

◆ fBiny

Int_t CbmTrdTrianglePRF::fBiny

private

Current bin in the map - y direction.

Index of bin in the map corresponding to cluster center - x direction

Definition at line 133 of file CbmTrdTrianglePRF.h.

Referenced by GetChargeFraction(), GetCurrentBin(), GetCurrentPad(), GoToOriginY(), NextBinY(), PrevBinY(), and SetOrigin().

◆ fBiny0

Int_t CbmTrdTrianglePRF::fBiny0

private

Offset bin in the map - y direction.

Index of current bin in the map - y direction

Definition at line 135 of file CbmTrdTrianglePRF.h.

Referenced by GoToOriginY(), and SetOrigin().

◆ fdH

Double_t CbmTrdTrianglePRF::fdH

private

bin half height

Definition at line 141 of file CbmTrdTrianglePRF.h.

Referenced by CbmTrdTrianglePRF(), GetBin(), GetChargeFraction(), and Print().

◆ fdW

Double_t CbmTrdTrianglePRF::fdW

private

bin half width

Definition at line 140 of file CbmTrdTrianglePRF.h.

Referenced by CbmTrdTrianglePRF(), GetBin(), GetChargeFraction(), and Print().

◆ fH

Double_t CbmTrdTrianglePRF::fH

private

pad height

Definition at line 139 of file CbmTrdTrianglePRF.h.

Referenced by CbmTrdTrianglePRF(), GetCurrentPad(), and GetSide().

◆ fN

Int_t CbmTrdTrianglePRF::fN

private

no of bins across wires

Definition at line 127 of file CbmTrdTrianglePRF.h.

Referenced by CbmTrdTrianglePRF(), GetBin(), GetChargeFraction(), GetCurrentPad(), NextBinX(), NextBinY(), PrevBinX(), and Print().

◆ fNorm

Double_t CbmTrdTrianglePRF::fNorm

private

normalization factor for the 2D Gauss distribution

Definition at line 143 of file CbmTrdTrianglePRF.h.

Referenced by CbmTrdTrianglePRF(), and Norm().

◆ fPRFx

TF1* CbmTrdTrianglePRF::fPRFx

private

PRF model along wires.

Definition at line 147 of file CbmTrdTrianglePRF.h.

Referenced by CbmTrdTrianglePRF(), GetChargeFraction(), and ~CbmTrdTrianglePRF().

◆ fPRFy

TF1* CbmTrdTrianglePRF::fPRFy

private

PRF model across wires.

Definition at line 148 of file CbmTrdTrianglePRF.h.

Referenced by CbmTrdTrianglePRF(), GetChargeFraction(), and ~CbmTrdTrianglePRF().

◆ fSlope

Double_t CbmTrdTrianglePRF::fSlope

private

slope of triangle H/W

Definition at line 142 of file CbmTrdTrianglePRF.h.

Referenced by GetSide(), and Print().

◆ fUp

std::vector<Char_t> CbmTrdTrianglePRF::fUp

private

1 for the upper pad, -1 for the bottom pad and 0 on the boundary

Definition at line 144 of file CbmTrdTrianglePRF.h.

Referenced by CbmTrdTrianglePRF(), GetCurrentPad(), and Print().

◆ fW

Double_t CbmTrdTrianglePRF::fW

private

pad width

Definition at line 138 of file CbmTrdTrianglePRF.h.

Referenced by CbmTrdTrianglePRF(), GetCurrentPad(), and GetSide().

◆ fX

std::vector<Double_t> CbmTrdTrianglePRF::fX

private

position of bin center along wires

Definition at line 145 of file CbmTrdTrianglePRF.h.

Referenced by CbmTrdTrianglePRF(), GetBin(), GetChargeFraction(), GetCurrentPad(), NextBinX(), and Print().

◆ fX0

Double_t CbmTrdTrianglePRF::fX0

private

Index of bin in the map corresponding to cluster center - y direction.

x coordinate of cluster

Definition at line 136 of file CbmTrdTrianglePRF.h.

Referenced by GetChargeFraction(), and SetOrigin().

◆ fY

std::vector<Double_t> CbmTrdTrianglePRF::fY

private

position of bin center across wires

Definition at line 146 of file CbmTrdTrianglePRF.h.

Referenced by CbmTrdTrianglePRF(), GetBin(), GetChargeFraction(), GetCurrentPad(), and Print().

◆ fY0

Double_t CbmTrdTrianglePRF::fY0

private

y coordinate of cluster

Definition at line 137 of file CbmTrdTrianglePRF.h.

Referenced by GetChargeFraction(), and SetOrigin().

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

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Usage

Member Enumeration Documentation

◆ CbmTrdTrianglePRFDef

Constructor & Destructor Documentation

◆ CbmTrdTrianglePRF() [1/2]

◆ ~CbmTrdTrianglePRF()

◆ CbmTrdTrianglePRF() [2/2]

Member Function Documentation

◆ GetBin()

◆ GetChargeFraction()

◆ GetCurrentBin()

◆ GetCurrentPad()

◆ GetSide()

◆ GoToOriginX()

◆ GoToOriginY()

◆ NextBinX()

◆ NextBinY()

◆ Norm()

◆ operator=()

◆ PrevBinX()

◆ PrevBinY()

◆ Print()

◆ SetOrigin()

Member Data Documentation

◆ fBinx

◆ fBinx0

◆ fBiny

◆ fBiny0

◆ fdH

◆ fdW

◆ fH

◆ fN

◆ fNorm

◆ fPRFx

◆ fPRFy

◆ fSlope

◆ fUp

◆ fW

◆ fX

◆ fX0

◆ fY

◆ fY0