1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 //_________________________________________________________________________
19 // A singleton. This class should be used in the analysis stage to get
20 // reconstructed objects: Digits, RecPoints, TrackSegments and RecParticles,
21 // instead of directly reading them from galice.root file.
24 // The AliEMCALLoader now holds the TClonesArray and TObjArray for reading
25 // Hits, Dgits, SDigits and RecPoints. Filling is managed in the GetEvent()
28 // Creation/writing of files is managed by the relevant parts of the
29 // reconstruction software (AliEMCALDigitiser etx)
31 //*-- Author: Yves Schutz (SUBATECH) & Dmitri Peressounko (RRC KI & SUBATECH)
32 //*-- Completely redesigned by Dmitri Peressounko March 2001
34 //*-- YS June 2001 : renamed the original AliEMCALIndexToObject and make
35 //*-- systematic usage of TFolders without changing the interface
37 //*-- Marco van Leeuwen, Jan 2006: complete revision to simplify reading
38 //*-- and fit better in general ALICE scheme
40 //////////////////////////////////////////////////////////////////////////////
42 // --- ROOT system ---
45 // --- Standard library ---
47 // --- AliRoot header files ---
48 #include "AliEMCALLoader.h"
50 #include "AliCDBLocal.h"
51 #include "AliCDBStorage.h"
52 #include "AliCDBManager.h"
53 #include "AliEMCALHit.h"
55 ClassImp(AliEMCALLoader)
57 const TString AliEMCALLoader::fgkECARecPointsBranchName("EMCALECARP");//Name for branch with ECA Reconstructed Points
58 AliEMCALCalibData* AliEMCALLoader::fgCalibData = 0; //calibation data
59 AliEMCALAlignData* AliEMCALLoader::fgAlignData = 0; //alignment data
61 //____________________________________________________________________________
62 AliEMCALLoader::AliEMCALLoader()
64 //Default constructor for EMCAL Loader Class
67 fHits = new TClonesArray("AliEMCALHit");
68 fDigits = new TClonesArray("AliEMCALDigit");
69 fSDigits = new TClonesArray("AliEMCALDigit");
70 fRecPoints = new TObjArray();
73 //____________________________________________________________________________
74 AliEMCALLoader::AliEMCALLoader(const Char_t *detname,const Char_t *eventfoldername):
75 AliLoader(detname,eventfoldername)
77 //Specific constructor for EMCAL Loader class
80 fHits = new TClonesArray("AliEMCALHit");
81 fDigits = new TClonesArray("AliEMCALDigit");
82 fSDigits = new TClonesArray("AliEMCALDigit");
83 fRecPoints = new TObjArray();
86 //____________________________________________________________________________
87 AliEMCALLoader::~AliEMCALLoader()
89 // Disconnect trees and remove arrays
91 TreeH()->SetBranchAddress(fDetectorName,0);
93 TreeD()->SetBranchAddress(fDetectorName,0);
95 TreeS()->SetBranchAddress(fDetectorName,0);
97 TreeR()->SetBranchAddress(fgkECARecPointsBranchName,0);
104 //____________________________________________________________________________
105 AliEMCALAlignData* AliEMCALLoader::AlignData()
107 // Check if the instance of AliEMCALAlignData exists, and return it
109 if( !(AliCDBManager::Instance()->IsDefaultStorageSet()) )
114 //____________________________________________________________________________
115 AliEMCALCalibData* AliEMCALLoader::CalibData()
117 // Check if the instance of AliEMCALCalibData exists, and return it
119 if( !(AliCDBManager::Instance()->IsDefaultStorageSet()) )
126 //____________________________________________________________________________
127 Int_t AliEMCALLoader::CalibrateRaw(Double_t energy, Int_t module,
128 Int_t column, Int_t row)
130 // Convert energy into digitized amplitude for a cell relId
131 // It is a user responsilibity to open CDB and set
132 // AliEMCALCalibData object by the following operators:
134 // AliCDBLocal *loc = new AliCDBLocal("deCalibDB");
135 // AliEMCALCalibData* clb = (AliEMCALCalibData*)AliCDBStorage::Instance()
136 // ->Get(path_to_calibdata,run_number);
137 // AliEMCALGetter* gime = AliEMCALGetter::Instance("galice.root");
138 // gime->SetCalibData(clb);
140 if (CalibData() == 0)
141 Warning("CalibrateRaw","Calibration DB is not initiated!");
143 Float_t gainFactor = 0.00305;//0.0015; // width of one ADC channel in GeV
144 Float_t pedestal = 0.009;//0.005; // pedestals
147 gainFactor = CalibData()->GetADCchannel (module,column,row);
148 pedestal = CalibData()->GetADCpedestal(module,column,row);
151 Int_t amp = static_cast<Int_t>( (energy - pedestal) / gainFactor + 0.5 ) ;
155 //____________________________________________________________________________
156 Int_t AliEMCALLoader::GetEvent()
158 //Method to load all of the data
159 //members of the EMCAL for a given
160 //event from the Trees
162 AliLoader::GetEvent(); // First call AliLoader to do all the groundwork
164 // Now connect and fill TClonesArray
167 TTree *treeH = TreeH();
170 Int_t nEnt = treeH->GetEntries(); // TreeH has array of hits for every primary
173 TClonesArray *temp_arr = new TClonesArray("AliEMCALHit");
174 treeH->SetBranchAddress(fDetectorName,&temp_arr);
175 for (Int_t iEnt = 0; iEnt < nEnt; iEnt++) {
176 treeH->GetEntry(iEnt);
177 Int_t nHit = temp_arr->GetEntriesFast();
178 for (Int_t iHit = 0; iHit < nHit; iHit++) {
179 new ((*fHits)[index]) AliEMCALHit(*((AliEMCALHit*)temp_arr->At(iHit)));
186 TTree *treeS = TreeS();
188 treeS->SetBranchAddress(fDetectorName,&fSDigits);
193 TTree *treeD = TreeD();
195 treeD->SetBranchAddress(fDetectorName,&fDigits);
200 TTree *treeR = TreeR();
202 treeR->SetBranchAddress(fgkECARecPointsBranchName,&fRecPoints);