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 //_________________________________________________________________________
20 //*-- Yves Schutz (SUBATECH)
21 // Reconstruction class. Redesigned from the old AliReconstructionner class and
22 // derived from STEER/AliReconstructor.
24 // --- ROOT system ---
26 // --- Standard library ---
28 // --- AliRoot header files ---
29 #include "AliEMCALReconstructor.h"
32 #include "AliRunLoader.h"
33 #include "AliEMCALLoader.h"
34 #include "AliEMCALClusterizerv1.h"
35 #include "AliEMCALRecPoint.h"
36 #include "AliEMCALPID.h"
37 #include "AliRawReader.h"
40 ClassImp(AliEMCALReconstructor)
42 //____________________________________________________________________________
43 AliEMCALReconstructor::AliEMCALReconstructor()
49 //____________________________________________________________________________
50 AliEMCALReconstructor::AliEMCALReconstructor(const AliEMCALReconstructor & rec)
51 : AliReconstructor(rec),
57 //____________________________________________________________________________
58 AliEMCALReconstructor::~AliEMCALReconstructor()
63 //____________________________________________________________________________
64 void AliEMCALReconstructor::Reconstruct(AliRunLoader* runLoader) const
66 // method called by AliReconstruction;
67 // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track
68 // segment maker needs access to the AliESD object to retrieve the tracks reconstructed by
69 // the global tracking.
71 TString headerFile(runLoader->GetFileName()) ;
72 TString branchName(runLoader->GetEventFolder()->GetName() ) ;
74 AliEMCALClusterizerv1 clu(headerFile, branchName);
75 clu.SetEventRange(0, -1) ; // do all the events
77 clu.ExecuteTask("deb all") ;
79 clu.ExecuteTask("pseudo") ;
83 //____________________________________________________________________________
84 void AliEMCALReconstructor::Reconstruct(AliRunLoader* runLoader, AliRawReader* rawreader) const
86 // method called by AliReconstruction;
87 // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track
88 // segment maker needs access to the AliESD object to retrieve the tracks reconstructed by
89 // the global tracking.
90 // Here we reconstruct from Raw Data
93 TString headerFile(runLoader->GetFileName()) ;
94 TString branchName(runLoader->GetEventFolder()->GetName()) ;
96 AliEMCALClusterizerv1 clu(headerFile, branchName);
97 clu.SetEventRange(0, -1) ; // do all the events
99 clu.ExecuteTask("deb pseudo all") ;
101 clu.ExecuteTask("pseudo") ;
105 //____________________________________________________________________________
106 void AliEMCALReconstructor::FillESD(AliRunLoader* runLoader, AliESD* esd) const
108 // Called by AliReconstruct after Reconstruct() and global tracking and vertxing
109 const double timeScale = 1.e+11; // transition constant from sec to 0.01ns (10ps)
111 Int_t eventNumber = runLoader->GetEventNumber() ;
113 TString headerFile(runLoader->GetFileName()) ;
114 TString branchName(runLoader->GetEventFolder()->GetName()) ;
115 // Creates AliESDCaloCluster from AliEMCALRecPoints
116 AliRunLoader *rl = AliRunLoader::GetRunLoader();
117 AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
119 rl->LoadKinematics(); // To get the primary label
120 rl->LoadDigits(); // To get the primary label
121 rl->LoadHits(); // To get the primary label
122 rl->GetEvent(eventNumber);
123 TObjArray *clusters = emcalLoader->RecPoints();
124 Int_t nClusters = clusters->GetEntries(), nClustersNew=0;
125 // Int_t nRP=0, nPC=0; // in input
126 esd->SetFirstEMCALCluster(esd->GetNumberOfCaloClusters()); // Put after Phos clusters
128 for (Int_t iClust = 0 ; iClust < nClusters ; iClust++) {
129 const AliEMCALRecPoint * clust = emcalLoader->RecPoint(iClust);
130 //if(clust->GetClusterType()== AliESDCaloCluster::kClusterv1) nRP++; else nPC++;
131 if (Debug()) clust->Print();
132 // Get information from EMCAL reconstruction points
135 clust->GetGlobalPosition(gpos);
136 for (Int_t ixyz=0; ixyz<3; ixyz++)
137 xyz[ixyz] = gpos[ixyz];
139 Int_t digitMult = clust->GetMultiplicity();
140 UShort_t *amplList = new UShort_t[digitMult];
141 UShort_t *timeList = new UShort_t[digitMult];
142 UShort_t *digiList = new UShort_t[digitMult];
143 Float_t *amplFloat = clust->GetEnergiesList();
144 Float_t *timeFloat = clust->GetTimeList();
145 Int_t *digitInts = clust->GetAbsId();
147 clust->GetElipsAxis(elipAxis);
149 // Convert Float_t* and Int_t* to UShort_t* to save memory
150 // Problem : we should recalculate a cluster characteristics when discard digit(s)
151 Int_t newdigitMult = 0;
152 for (Int_t iDigit=0; iDigit<digitMult; iDigit++) {
153 if(timeFloat[iDigit] < 65536./timeScale) {
154 amplList[newdigitMult] = (UShort_t)(amplFloat[iDigit]*500);
155 if(amplList[newdigitMult] > 0) { // accept digit if poztive amplitude
156 timeList[newdigitMult] = (UShort_t)(timeFloat[iDigit]*timeScale); // Time in units of 0.01 ns = 10 ps
157 digiList[newdigitMult] = (UShort_t)(digitInts[iDigit]);
163 if(newdigitMult > 0) { // accept cluster if it has some digit
165 if(newdigitMult != digitMult) { // some digits were deleted
166 UShort_t *amplListNew = new UShort_t[newdigitMult];
167 UShort_t *timeListNew = new UShort_t[newdigitMult];
168 UShort_t *digiListNew = new UShort_t[newdigitMult];
169 for (Int_t iDigit=0; iDigit<newdigitMult; iDigit++) {
170 amplListNew[iDigit] = amplList[iDigit];
171 timeListNew[iDigit] = timeList[iDigit];
172 digiListNew[iDigit] = digiList[iDigit];
179 amplList = amplListNew;
180 timeList = timeListNew;
181 digiList = digiListNew;
183 // fills the ESDCaloCluster
184 AliESDCaloCluster * ec = new AliESDCaloCluster() ;
185 ec->SetClusterType(clust->GetClusterType());
186 ec->SetGlobalPosition(xyz);
187 ec->SetClusterEnergy(clust->GetEnergy());
189 ec->SetNumberOfDigits(newdigitMult);
190 ec->SetDigitAmplitude(amplList); //energies
191 ec->SetDigitTime(timeList); //times
192 ec->SetDigitIndex(digiList); //indices
193 if(clust->GetClusterType()== AliESDCaloCluster::kClusterv1){
194 ec->SetClusterDisp(clust->GetDispersion());
195 ec->SetClusterChi2(-1); //not yet implemented
196 ec->SetM02(elipAxis[0]*elipAxis[0]) ;
197 ec->SetM20(elipAxis[1]*elipAxis[1]) ;
198 ec->SetM11(-1) ; //not yet implemented
199 ec->SetPrimaryIndex(clust->GetPrimaryIndex());
201 // add the cluster to the esd object
202 esd->AddCaloCluster(ec);
204 } else { // no new ESD cluster
209 } // cycle on clusters
210 // printf(" %i : nClusters %i : RP %i PC %i \n", eventNumber, nClusters, nRP, nPC);
211 esd->SetNumberOfEMCALClusters(nClustersNew);
212 //if(nClustersNew != nClusters)
213 //printf(" ##### nClusters %i -> new %i ##### \n", nClusters, nClustersNew );
215 //Fill ESDCaloCluster with PID weights
216 AliEMCALPID *pid = new AliEMCALPID;
217 //pid->SetPrintInfo(kTRUE);
218 pid->SetReconstructor(kTRUE);