Implement virtual track selection for AOD analysis. More...

#include <AliEmcalTrackSelectionAOD.h>

Inheritance diagram for AliEmcalTrackSelectionAOD:

Public Member Functions
	AliEmcalTrackSelectionAOD ()

	AliEmcalTrackSelectionAOD (AliVCuts *cuts, UInt_t filterbits)

virtual	~AliEmcalTrackSelectionAOD ()

virtual TObjArray *	GetAcceptedTracks (const TClonesArray *const tracks)

virtual TObjArray *	GetAcceptedTracks (const AliVEvent *const event)

virtual bool	IsTrackAccepted (AliVTrack *const trk)

void	AddFilterBit (UInt_t filterbits)

Public Member Functions inherited from AliEmcalTrackSelection
	AliEmcalTrackSelection ()

	AliEmcalTrackSelection (const AliEmcalTrackSelection &ref)

AliEmcalTrackSelection &	operator= (const AliEmcalTrackSelection &ref)

virtual	~AliEmcalTrackSelection ()

void	AddTrackCuts (AliVCuts *cuts)

Int_t	GetNumberOfCutObjects () const

AliVCuts *	GetTrackCuts (Int_t icut)

void	SetSelectionModeAny ()

void	SetSelectionModeAll ()

Private Attributes
UInt_t	fFilterBits
	Track filter bits. More...

Additional Inherited Members
Protected Attributes inherited from AliEmcalTrackSelection
TObjArray *	fListOfTracks
	TObjArray with accepted tracks. More...

TObjArray *	fListOfCuts
	List of track cut objects. More...

Bool_t	fSelectionModeAny
	Accept track if any of the cuts is fulfilled. More...

Detailed Description

Implement virtual track selection for AOD analysis.

Implementation of track selection in case the analysis runs on AODs For the moment it uses the AliESDtrackCuts and converts AOD tracks to ESD tracks, which might change in the future when an AOD track selection framework becomes available.

Definition at line 28 of file AliEmcalTrackSelectionAOD.h.

Constructor & Destructor Documentation

AliEmcalTrackSelectionAOD::AliEmcalTrackSelectionAOD ( )

Main constructor, initialises fields with 0 (or NULL). For ROOT I/O, not intended to be used by the users.

Definition at line 33 of file AliEmcalTrackSelectionAOD.cxx.

AliEmcalTrackSelectionAOD::AliEmcalTrackSelectionAOD	(	AliVCuts *	cuts,
		UInt_t	filterbits
	)

Main Constructor, initalising also track cuts and filter bits. In case the initial cuts is a nullpointer, only filter bits are used for the track selection. This constructor is intended to be used by the users.

Parameters

cuts	Inital track cut object (of type AliESDtrackCuts, can be a nullpointer)
filterbits	Filter bits required

Definition at line 47 of file AliEmcalTrackSelectionAOD.cxx.

virtual AliEmcalTrackSelectionAOD::~AliEmcalTrackSelectionAOD ( )

inlinevirtual

Definition at line 32 of file AliEmcalTrackSelectionAOD.h.

Member Function Documentation

void AliEmcalTrackSelectionAOD::AddFilterBit ( UInt_t filterbits )

inline

Add a new filter bit to the track selection. Multiple filter bits can be set at the same time (via the bitwise or operator |).

Parameters

filterbits

Definition at line 44 of file AliEmcalTrackSelectionAOD.h.

TObjArray * AliEmcalTrackSelectionAOD::GetAcceptedTracks ( const TClonesArray *const tracks )

virtual

Select tracks from a list (TClonesArray) of tracks. The actual selection process is delegated to the function IsTrack selected. This function collects all the tracks which are accepted and puts them into a TObjArray. Note that this class keeps ownership over the resulting TObjArray.

Parameters

tracks TClonesArray of input tracks, under which we select the appropriate ones

Returns: TObjArray of selected tracks

Implements AliEmcalTrackSelection.

Definition at line 63 of file AliEmcalTrackSelectionAOD.cxx.

TObjArray * AliEmcalTrackSelectionAOD::GetAcceptedTracks ( const AliVEvent *const event )

virtual

Select tracks from an input event. The actual selection process is delegated to the function IsTrack selected. This function collects all the tracks which are accepted and puts them into a TObjArray. Note that this class keeps ownership over the resulting TObjArray.

Parameters

event Input event under which we select the appropriate tracks

Returns: TObjArray of selected tracks

Implements AliEmcalTrackSelection.

Definition at line 83 of file AliEmcalTrackSelectionAOD.cxx.

bool AliEmcalTrackSelectionAOD::IsTrackAccepted ( AliVTrack *const trk )

virtual

Function checks whether track is accepted under the given track selection cuts. The function can handle AliAODTrack and AliPicoTrack, while for AliPico track an AliAODTrack is expected to be the underlying structure. If it is not possible to access an AOD track from the input track, the object will not be selected. Otherwise first the status bits are checked (if requested), and if further track cuts (of type AliESDtrackCuts) are provided, the track is converted to an ESD track for further checks.

Parameters