class AliEMCALTracker: public AliTracker
Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. Author: The ALICE Off-line Project. Contributors are mentioned in the code where appropriate. Permission to use, copy, modify and distribute this software and its documentation strictly for non-commercial purposes is hereby granted without fee, provided that the above copyright notice appears in all copies and that both the copyright notice and this permission notice appear in the supporting documentation. The authors make no claims about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty. Class AliEMCALTracker Implementation of the track matching method between barrel tracks and EMCAL clusters. Besides algorithm implementation, some cuts are required to be set in order to define, for each track, an acceptance window where clusters are searched to find best match (if any). The class accepts as input an ESD container, and works directly on it, simply setting, for each of its tracks, the fEMCALindex flag, for each track which is matched to a cluster. In order to use method, one must launch PropagateBack(). author: A. Pulvirenti (alberto.pulvirenti@ct.infn.it) Revised by Rongrong 2010-05-31 (rongrong.ma@cern.ch)
Function Members (Methods)
public:
protected:
| virtual void | TObject::DoError(int level, const char* location, const char* fmt, va_list va) const |
| void | TObject::MakeZombie() |
private:
| Int_t | FindMatchedCluster(AliESDtrack* track) |
Data Members
public:
| enum { | kUnmatched | |
| }; | ||
| enum ETrackCorr { | kTrackCorrNone | |
| kTrackCorrMMB | ||
| }; | ||
| enum TObject::EStatusBits { | kCanDelete | |
| kMustCleanup | ||
| kObjInCanvas | ||
| kIsReferenced | ||
| kHasUUID | ||
| kCannotPick | ||
| kNoContextMenu | ||
| kInvalidObject | ||
| }; | ||
| enum TObject::[unnamed] { | kIsOnHeap | |
| kNotDeleted | ||
| kZombie | ||
| kBitMask | ||
| kSingleKey | ||
| kOverwrite | ||
| kWriteDelete | ||
| }; |
private:
| Double_t | fClusterWindow | Select clusters in the window to be matched to tracks |
| TObjArray* | fClusters | ! collection of EMCAL clusters (ESDCaloCluster or EMCALRecPoint) |
| Double_t | fCutEta | cut on eta difference |
| Double_t | fCutNITS | mimimum number of track hits in the ITS |
| Double_t | fCutNTPC | mimimum number of track hits in the TPC |
| Double_t | fCutPhi | cut on phi difference |
| Double_t | fCutPt | mimimum pT cut on tracks |
| Float_t | fEMCalSurfaceDistance | EMCal surface distance |
| AliEMCALGeometry* | fGeom | ! EMCAL geometry |
| Bool_t | fITSTrackSA | If ITS Tracks |
| Float_t | fStep | Length of each step in propagation |
| AliEMCALTracker::ETrackCorr | fTrackCorrMode | Material budget correction mode |
| TObjArray* | fTracks | ! collection of tracks |
Class Charts
| Inheritance Chart: | ||||||||||||||||
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Function documentation
AliEMCALTracker()
Default constructor. Initializes all simple data members to default values, and all collections to NULL. Output file name is set to a default value.
AliEMCALTracker(const AliEMCALTracker& t)
Copy constructor Besides copying all parameters, duplicates all collections.
AliEMCALTracker& operator=(const AliEMCALTracker& source)
void Clear(Option_t* option = "ALL")
Clearing method Deletes all objects in arrays and the arrays themselves
Int_t LoadClusters(TTree* )
Load EMCAL clusters in the form of AliEMCALRecPoint, from simulation temporary files. (When included in reconstruction chain, this method is used automatically)
Int_t LoadClusters(AliESDEvent* esd)
Load EMCAL clusters in the form of AliESDCaloClusters, from an AliESD object.
void SetTrackCorrectionMode(Option_t* option)
Set track correction mode gest the choice in string format and converts into internal enum
Int_t PropagateBack(AliESDEvent* esd)
Main operation method. Gets external AliESD containing tracks to be matched. After executing match finding, stores in the same ESD object all infos and releases the object for further reconstruction steps. Note: should always return 0=OK, because otherwise all tracking is aborted for this event
Int_t FindMatchedCluster(AliESDtrack* track)
For each track, extrapolate it to all the clusters Find the closest one as matched if the residuals (dEta, dPhi) satisfy the cuts
void UnloadClusters()
Free memory from all arrays This method is called after the local tracking step so we can safely delete everything