A very memory compact histogram to hold some tracker distributions. More...

#include <AliMUONSparseHisto.h>

Inheritance diagram for AliMUONSparseHisto:

Public Types
enum	{ kUnderflow = BIT(20), kOverflow = BIT(21) }

Public Member Functions
	AliMUONSparseHisto (Double_t xmin=0.0, Double_t xmax=4096.0)

	AliMUONSparseHisto (const AliMUONSparseHisto &rhs)

AliMUONSparseHisto &	operator= (const AliMUONSparseHisto &rhs)

virtual	~AliMUONSparseHisto ()

Bool_t	Add (const AliMUONSparseHisto &h)

Bool_t	HasUnderflow () const

Bool_t	HasOverflow () const

Int_t	Fill (Double_t value)

Int_t	GetNbins () const
	Return number of bins we hold. More...

Double_t	GetBinCenter (Int_t bin) const

Int_t	GetBinContent (Int_t bin) const

virtual void	Print (Option_t *opt="") const

virtual void	Clear (Option_t *opt="")

Int_t	Find (Int_t binCenter) const

virtual void	Copy (TObject &object) const

Double_t	Xmax () const
	Return max value of bincenter. More...

Double_t	Xmin () const
	Return min value of bincenter. More...

Int_t	Nbits () const
	Number of bits used to code the x-value of the histogram. More...

Private Member Functions
UInt_t	Encode (Int_t binCenter, Int_t binContent) const

Double_t	DecodeValue (Int_t value) const

Int_t	EncodeValue (Double_t value) const

UInt_t	GetBin (Int_t i) const

Int_t	BinCenter (UInt_t x) const

Int_t	BinContent (UInt_t x) const

void	Expand ()

Double_t	Factor () const
	Conversion factor to go from float to int value (for bin content) More...

Private Attributes
Int_t	fNbins
	number of bins we hold More...

UInt_t *	fArray
	compacted content = (bin,value) More...

Double_t	fXmin
	min value of bincenter More...

Double_t	fXmax
	max value of bincenter More...

Double_t	fFactor
	to go from double to int More...

Detailed Description

A very memory compact histogram to hold some tracker distributions.

Tiny histogram-like class to hold some distributions of tracker data. Only intent of this class is to minimize memory consumption, in order to fit a maximum number of channel histograms into memory. The rest is not supported ;-)

Author: Laurent Aphecetche, Subatech

Definition at line 19 of file AliMUONSparseHisto.h.

Member Enumeration Documentation

anonymous enum

Enumerator
kUnderflow
kOverflow

Definition at line 23 of file AliMUONSparseHisto.h.

Constructor & Destructor Documentation

AliMUONSparseHisto::AliMUONSparseHisto	(	Double_t	xmin = `0.0`,
		Double_t	xmax = `4096.0`
	)

ctor

Definition at line 42 of file AliMUONSparseHisto.cxx.

AliMUONSparseHisto::AliMUONSparseHisto ( const AliMUONSparseHisto & rhs )

copy ctor

Definition at line 56 of file AliMUONSparseHisto.cxx.

AliMUONSparseHisto::~AliMUONSparseHisto ( )

virtual

dtor

Definition at line 81 of file AliMUONSparseHisto.cxx.

Member Function Documentation

Bool_t AliMUONSparseHisto::Add ( const AliMUONSparseHisto & h )

Add h to this

Definition at line 89 of file AliMUONSparseHisto.cxx.

Referenced by AliMUONTrackerData::Add().

Int_t AliMUONSparseHisto::BinCenter ( UInt_t x ) const

private

Extract binCenter part from x

Definition at line 159 of file AliMUONSparseHisto.cxx.

Referenced by GetBinCenter().

Int_t AliMUONSparseHisto::BinContent ( UInt_t x ) const

private

Extract binContent part from x

Definition at line 168 of file AliMUONSparseHisto.cxx.

Referenced by GetBinContent().

void AliMUONSparseHisto::Clear ( Option_t * opt = "" )

virtual

Reset the content

Definition at line 109 of file AliMUONSparseHisto.cxx.

void AliMUONSparseHisto::Copy ( TObject & object ) const

virtual

Copy this to *object

Definition at line 119 of file AliMUONSparseHisto.cxx.

Referenced by AliMUONSparseHisto(), and operator=().

Double_t AliMUONSparseHisto::DecodeValue ( Int_t value ) const

private

From internal integer to "original" double

Definition at line 143 of file AliMUONSparseHisto.cxx.

Referenced by GetBinCenter().

UInt_t AliMUONSparseHisto::Encode	(	Int_t	binCenter,
		Int_t	binContent
	)		const

private

Convert (binCenter,binContent) into a single value

Definition at line 177 of file AliMUONSparseHisto.cxx.

Referenced by Fill().

Int_t AliMUONSparseHisto::EncodeValue ( Double_t value ) const

private

From original double value to internal integer

Definition at line 151 of file AliMUONSparseHisto.cxx.

Referenced by Fill().

void AliMUONSparseHisto::Expand ( )

private

Make fArray of size n

Definition at line 186 of file AliMUONSparseHisto.cxx.

Referenced by Fill().

Double_t AliMUONSparseHisto::Factor ( ) const

inlineprivate

Conversion factor to go from float to int value (for bin content)

Definition at line 88 of file AliMUONSparseHisto.h.

Referenced by Copy(), DecodeValue(), and EncodeValue().

Int_t AliMUONSparseHisto::Fill ( Double_t value )

Fill

Definition at line 210 of file AliMUONSparseHisto.cxx.

Referenced by Add(), and AliMUONTrackerData::FillHisto().

Int_t AliMUONSparseHisto::Find ( Int_t binCenter ) const

Return the index in fArray of value, or -1 if not found

Definition at line 251 of file AliMUONSparseHisto.cxx.

Referenced by Fill().

UInt_t AliMUONSparseHisto::GetBin ( Int_t i ) const

private

Get bin, which is a compacted form of two integers : (binCenter,binContent) where binCenter itself might be an integer-fied double value.

Definition at line 264 of file AliMUONSparseHisto.cxx.

Referenced by Copy(), GetBinCenter(), GetBinContent(), and Print().

Double_t AliMUONSparseHisto::GetBinCenter ( Int_t bin ) const

Get bin center

Definition at line 273 of file AliMUONSparseHisto.cxx.

Referenced by AliMUONTrackerDataHistogrammer::Add(), Find(), and Print().

Int_t AliMUONSparseHisto::GetBinContent ( Int_t bin ) const

Get bin content

Definition at line 286 of file AliMUONSparseHisto.cxx.

Referenced by Add(), AliMUONTrackerDataHistogrammer::Add(), Fill(), and Print().

Int_t AliMUONSparseHisto::GetNbins ( ) const

inline

Return number of bins we hold.

Definition at line 48 of file AliMUONSparseHisto.h.

Referenced by Add(), AliMUONTrackerDataHistogrammer::Add(), Copy(), Find(), GetBinCenter(), GetBinContent(), and Print().

Bool_t AliMUONSparseHisto::HasOverflow ( ) const

inline

Whether this histogram has overflow values (no way to know the number of underflow, though)

Definition at line 43 of file AliMUONSparseHisto.h.

Referenced by AliMUONTrackerDataHistogrammer::Add(), and Print().

Bool_t AliMUONSparseHisto::HasUnderflow ( ) const

inline

Whether this histogram has underflow values (no way to know the number of underflow, though)

Definition at line 39 of file AliMUONSparseHisto.h.

Referenced by AliMUONTrackerDataHistogrammer::Add(), and Print().

Int_t AliMUONSparseHisto::Nbits ( ) const

inline

Number of bits used to code the x-value of the histogram.

Definition at line 69 of file AliMUONSparseHisto.h.

Referenced by AliMUONTrackerDataHistogrammer::CreateChannelHisto().

AliMUONSparseHisto & AliMUONSparseHisto::operator= ( const AliMUONSparseHisto & rhs )

assignment operator

Definition at line 70 of file AliMUONSparseHisto.cxx.

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

virtual

Printout

Definition at line 299 of file AliMUONSparseHisto.cxx.

Double_t AliMUONSparseHisto::Xmax ( ) const

inline

Return max value of bincenter.

Definition at line 63 of file AliMUONSparseHisto.h.

Referenced by Add(), Copy(), and Fill().

Double_t AliMUONSparseHisto::Xmin ( ) const

inline

Return min value of bincenter.

Definition at line 66 of file AliMUONSparseHisto.h.

Referenced by Add(), Copy(), DecodeValue(), EncodeValue(), and Fill().

Member Data Documentation

UInt_t* AliMUONSparseHisto::fArray

private

compacted content = (bin,value)

Definition at line 95 of file AliMUONSparseHisto.h.

Referenced by Clear(), Copy(), Expand(), Fill(), GetBin(), and ~AliMUONSparseHisto().

Double_t AliMUONSparseHisto::fFactor

private

to go from double to int

Definition at line 100 of file AliMUONSparseHisto.h.

Referenced by Copy(), and Factor().

Int_t AliMUONSparseHisto::fNbins

private

number of bins we hold

Definition at line 92 of file AliMUONSparseHisto.h.

Referenced by Clear(), Copy(), Expand(), Fill(), and GetNbins().

Double_t AliMUONSparseHisto::fXmax

private

max value of bincenter

Definition at line 98 of file AliMUONSparseHisto.h.

Referenced by Add(), Copy(), and Xmax().

Double_t AliMUONSparseHisto::fXmin

private

min value of bincenter

Definition at line 97 of file AliMUONSparseHisto.h.

Referenced by Add(), Copy(), and Xmin().

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

MUON/MUONcalib/AliMUONSparseHisto.h
MUON/MUONcalib/AliMUONSparseHisto.cxx

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation