Using TArrayI instead of TArrayS for the labels and track indexes (Gustavo)
[u/mrichter/AliRoot.git] / EMCAL / AliEMCALReconstructor.cxx
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f6019cda 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
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 **************************************************************************/
15
16/* $Id$ */
17
18//_________________________________________________________________________
19//*--
20//*-- Yves Schutz (SUBATECH)
21// Reconstruction class. Redesigned from the old AliReconstructionner class and
22// derived from STEER/AliReconstructor.
23//
24// --- ROOT system ---
25
26// --- Standard library ---
27
28// --- AliRoot header files ---
f6019cda 29#include "AliEMCALReconstructor.h"
5dee926e 30
af885e0f 31#include "AliESDEvent.h"
89ffc0b0 32#include "AliESDCaloCluster.h"
6a0cf740 33#include "AliESDtrack.h"
5dee926e 34#include "AliEMCALLoader.h"
98e9578e 35#include "AliEMCALRawUtils.h"
f6019cda 36#include "AliEMCALClusterizerv1.h"
5dee926e 37#include "AliEMCALRecPoint.h"
dc293ae9 38#include "AliEMCALPID.h"
0964c2e9 39#include "AliEMCALTrigger.h"
1d59832c 40#include "AliRawReader.h"
c47157cd 41// to be removed - it is here just because of geom
42#include "AliRun.h"
43#include "AliRunLoader.h"
1d59832c 44
f6019cda 45ClassImp(AliEMCALReconstructor)
46
c47157cd 47AliEMCALRecParam* AliEMCALReconstructor::fgkRecParam = 0; // EMCAL rec. parameters
48
f6019cda 49//____________________________________________________________________________
18a21c7c 50AliEMCALReconstructor::AliEMCALReconstructor()
51 : fDebug(kFALSE)
f6019cda 52{
53 // ctor
c47157cd 54 if (!fgkRecParam) {
55 AliWarning("The Reconstruction parameters for EMCAL nonitialized - Used default one");
56 fgkRecParam = new AliEMCALRecParam;
57 }
f6019cda 58}
59
0a4cb131 60//____________________________________________________________________________
18a21c7c 61AliEMCALReconstructor::AliEMCALReconstructor(const AliEMCALReconstructor & rec)
62 : AliReconstructor(rec),
63 fDebug(rec.fDebug)
0a4cb131 64{
65 //copy ctor
0a4cb131 66}
f6019cda 67
68//____________________________________________________________________________
69AliEMCALReconstructor::~AliEMCALReconstructor()
70{
71 // dtor
72}
73
74//____________________________________________________________________________
c47157cd 75void AliEMCALReconstructor::Reconstruct(TTree* digitsTree, TTree* clustersTree) const
f6019cda 76{
77 // method called by AliReconstruction;
78 // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track
79 // segment maker needs access to the AliESD object to retrieve the tracks reconstructed by
80 // the global tracking.
c47157cd 81 // Works on the current event.
f6019cda 82
c47157cd 83 AliEMCALClusterizerv1 clu;
84 clu.SetInput(digitsTree);
85 clu.SetOutput(clustersTree);
86 if ( Debug() )
87 clu.Digits2Clusters("deb all") ;
88 else
89 clu.Digits2Clusters("pseudo") ;
f6019cda 90}
91
92//____________________________________________________________________________
c47157cd 93void AliEMCALReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
98e9578e 94
a68156e6 95{
c47157cd 96 // Conversion from raw data to
97 // EMCAL digits.
98 // Works on a single-event basis
85c60a8e 99
98e9578e 100 rawReader->Reset() ;
98e9578e 101
c47157cd 102 TClonesArray *digitsArr = new TClonesArray("AliEMCALDigit",100);
103 Int_t bufsize = 32000;
104 digitsTree->Branch("EMCAL", &digitsArr, bufsize);
98e9578e 105
c47157cd 106 static AliEMCALRawUtils rawUtils;
107 rawUtils.Raw2Digits(rawReader,digitsArr);
c615db53 108
109 digitsTree->Fill();
110 digitsArr->Delete();
111 delete digitsArr;
112
a68156e6 113}
114
115//____________________________________________________________________________
d13093b8 116void AliEMCALReconstructor::FillESD(TTree* /*digitsTree*/, TTree* clustersTree,
c47157cd 117 AliESDEvent* esd) const
f6019cda 118{
98e9578e 119 // Called by AliReconstruct after Reconstruct() and global tracking and vertexing
c47157cd 120 // Works on the current event
98e9578e 121 const double timeScale = 1.e+11; // transition constant from sec to 0.01 ns
92da3372 122
85c60a8e 123 // Creates AliESDCaloCluster from AliEMCALRecPoints
c47157cd 124
125 TObjArray *clusters = new TObjArray(100);
126 TBranch *branch = clustersTree->GetBranch("EMCALECARP");
127 branch->SetAddress(&clusters);
128 clustersTree->GetEvent(0);
129
a7a5421e 130 Int_t nClusters = clusters->GetEntries(), nClustersNew=0;
c47157cd 131 AliDebug(1,Form("%d clusters",nClusters));
5d9e7bd7 132 // Int_t nRP=0, nPC=0; // in input
a7a5421e 133 esd->SetFirstEMCALCluster(esd->GetNumberOfCaloClusters()); // Put after Phos clusters
92da3372 134
6a0cf740 135 //######################################################
0964c2e9 136 //#########Calculate trigger and set trigger info###########
6a0cf740 137 //######################################################
0964c2e9 138
139 AliEMCALTrigger tr ;
140 // tr.SetPatchSize(1);//create 4x4 patches
141 tr.Trigger();
142
143 Float_t maxAmp2x2 = tr.Get2x2MaxAmplitude();
144 Float_t maxAmpnxn = tr.GetnxnMaxAmplitude();
145 Float_t ampOutOfPatch2x2 = tr.Get2x2AmpOutOfPatch() ;
146 Float_t ampOutOfPatchnxn = tr.GetnxnAmpOutOfPatch() ;
147
98e9578e 148 AliEMCALGeometry * geom = 0;
c47157cd 149 AliRunLoader *runLoader = AliRunLoader::GetRunLoader();
98e9578e 150 if (runLoader->GetAliRun() && runLoader->GetAliRun()->GetDetector("EMCAL"))
151 geom = dynamic_cast<AliEMCAL*>(runLoader->GetAliRun()->GetDetector("EMCAL"))->GetGeometry();
152 if (geom == 0)
153 geom = AliEMCALGeometry::GetInstance(AliEMCALGeometry::GetDefaulGeometryName());
154
0964c2e9 155 Int_t iSM2x2 = tr.Get2x2SuperModule();
156 Int_t iSMnxn = tr.GetnxnSuperModule();
157 Int_t iCellPhi2x2 = tr.Get2x2CellPhi();
158 Int_t iCellPhinxn = tr.GetnxnCellPhi();
159 Int_t iCellEta2x2 = tr.Get2x2CellEta();
160 Int_t iCellEtanxn = tr.GetnxnCellEta();
161
162 AliDebug(2, Form("Trigger 2x2 max amp %f, out amp %f, SM %d, iphi %d ieta %d", maxAmp2x2, ampOutOfPatch2x2, iSM2x2,iCellPhi2x2, iCellEta2x2));
163 AliDebug(2, Form("Trigger 4x4 max amp %f , out amp %f, SM %d, iphi %d, ieta %d", maxAmpnxn, ampOutOfPatchnxn, iSMnxn,iCellPhinxn, iCellEtanxn));
164
165 TVector3 pos2x2(-1,-1,-1);
166 TVector3 posnxn(-1,-1,-1);
167
168 Int_t iAbsId2x2 = geom->GetAbsCellIdFromCellIndexes( iSM2x2, iCellPhi2x2, iCellEta2x2) ;
169 Int_t iAbsIdnxn = geom->GetAbsCellIdFromCellIndexes( iSMnxn, iCellPhinxn, iCellEtanxn) ;
170 geom->GetGlobal(iAbsId2x2, pos2x2);
171 geom->GetGlobal(iAbsIdnxn, posnxn);
172
173 TArrayF triggerPosition(6);
174 triggerPosition[0] = pos2x2(0) ;
175 triggerPosition[1] = pos2x2(1) ;
176 triggerPosition[2] = pos2x2(2) ;
177 triggerPosition[3] = posnxn(0) ;
178 triggerPosition[4] = posnxn(1) ;
179 triggerPosition[5] = posnxn(2) ;
180
181 TArrayF triggerAmplitudes(4);
182 triggerAmplitudes[0] = maxAmp2x2 ;
183 triggerAmplitudes[1] = ampOutOfPatch2x2 ;
184 triggerAmplitudes[2] = maxAmpnxn ;
185 triggerAmplitudes[3] = ampOutOfPatchnxn ;
186
187 esd->AddEMCALTriggerPosition(triggerPosition);
188 esd->AddEMCALTriggerAmplitudes(triggerAmplitudes);
189
6a0cf740 190 //######################################################
191 //#######################TRACK MATCHING###############
192 //######################################################
193 //Fill list of integers, each one is index of track to which the cluster belongs.
194
195 // step 1 - initialize array of matched track indexes
196 Int_t *matchedTrack = new Int_t[nClusters];
197 for (Int_t iclus = 0; iclus < nClusters; iclus++)
198 matchedTrack[iclus] = -1; // neg. index --> no matched track
199
200 // step 2, change the flag for all matched clusters found in tracks
201 Int_t iemcalMatch = -1;
202 Int_t endtpc = esd->GetNumberOfTracks();
203 for (Int_t itrack = 0; itrack < endtpc; itrack++) {
204 AliESDtrack * track = esd->GetTrack(itrack) ; // retrieve track
205 iemcalMatch = track->GetEMCALcluster();
65f4a419 206 if(iemcalMatch >= 0) matchedTrack[iemcalMatch] = itrack;
6a0cf740 207 }
208
209 //########################################
210 //##############Fill CaloClusters#############
211 //########################################
0964c2e9 212
0964c2e9 213
5dee926e 214 for (Int_t iClust = 0 ; iClust < nClusters ; iClust++) {
c47157cd 215 const AliEMCALRecPoint * clust = (const AliEMCALRecPoint*)clusters->At(iClust);
8ada0ffe 216 //if(clust->GetClusterType()== AliESDCaloCluster::kEMCALClusterv1) nRP++; else nPC++;
85c60a8e 217 if (Debug()) clust->Print();
a7a5421e 218 // Get information from EMCAL reconstruction points
85c60a8e 219 Float_t xyz[3];
5dee926e 220 TVector3 gpos;
221 clust->GetGlobalPosition(gpos);
f6019cda 222 for (Int_t ixyz=0; ixyz<3; ixyz++)
5dee926e 223 xyz[ixyz] = gpos[ixyz];
7592dfc4 224
85c60a8e 225 Int_t digitMult = clust->GetMultiplicity();
d13093b8 226 TArrayS amplList(digitMult);
227 TArrayS timeList(digitMult);
228 TArrayS digiList(digitMult);
85c60a8e 229 Float_t *amplFloat = clust->GetEnergiesList();
230 Float_t *timeFloat = clust->GetTimeList();
231 Int_t *digitInts = clust->GetAbsId();
8a11aef1 232 Float_t elipAxis[2];
92da3372 233 clust->GetElipsAxis(elipAxis);
7592dfc4 234
235 // Convert Float_t* and Int_t* to Short_t* to save memory
a7a5421e 236 // Problem : we should recalculate a cluster characteristics when discard digit(s)
f1487f22 237 Int_t newdigitMult = 0;
92da3372 238 for (Int_t iDigit=0; iDigit<digitMult; iDigit++) {
98e9578e 239 if (amplFloat[iDigit] > 0) {
a7a5421e 240 amplList[newdigitMult] = (UShort_t)(amplFloat[iDigit]*500);
98e9578e 241 // Time in units of 0.01 ns = 10 ps
242 if(timeFloat[iDigit] < 65536./timeScale)
243 timeList[newdigitMult] = (UShort_t)(timeFloat[iDigit]*timeScale);
244 else
245 timeList[newdigitMult] = 65535;
246 digiList[newdigitMult] = (UShort_t)(digitInts[iDigit]);
247 newdigitMult++;
92da3372 248 }
8ada0ffe 249 else if (clust->GetClusterType() != AliESDCaloCluster::kEMCALPseudoCluster)
98e9578e 250 Warning("FillESD()","Negative or 0 digit amplitude in cluster");
92da3372 251 }
7592dfc4 252
a7a5421e 253 if(newdigitMult > 0) { // accept cluster if it has some digit
254 nClustersNew++;
7592dfc4 255
d13093b8 256 amplList.Set(newdigitMult);
257 timeList.Set(newdigitMult);
258 digiList.Set(newdigitMult);
259
65721814 260 //Primaries
7592dfc4 261 Int_t parentMult = 0;
4dd59c4a 262 Int_t *parentList = clust->GetParents(parentMult);
17773e2e 263
a7a5421e 264 // fills the ESDCaloCluster
265 AliESDCaloCluster * ec = new AliESDCaloCluster() ;
266 ec->SetClusterType(clust->GetClusterType());
7592dfc4 267 ec->SetPosition(xyz);
268 ec->SetE(clust->GetEnergy());
d13093b8 269 ec->AddDigitAmplitude(amplList);
270 ec->AddDigitTime(timeList);
271 ec->AddDigitIndex(digiList);
7592dfc4 272
8ada0ffe 273 if(clust->GetClusterType()== AliESDCaloCluster::kEMCALClusterv1){
7592dfc4 274
a7a5421e 275 ec->SetClusterDisp(clust->GetDispersion());
276 ec->SetClusterChi2(-1); //not yet implemented
277 ec->SetM02(elipAxis[0]*elipAxis[0]) ;
278 ec->SetM20(elipAxis[1]*elipAxis[1]) ;
279 ec->SetM11(-1) ; //not yet implemented
7592dfc4 280
4dd59c4a 281 TArrayI arrayTrackMatched(1);// Only one track, temporal solution.
282 arrayTrackMatched[0]= matchedTrack[iClust];
7592dfc4 283 ec->AddTracksMatched(arrayTrackMatched);
284
4dd59c4a 285 TArrayI arrayParents(parentMult,parentList);
286 ec->AddLabels(arrayParents);
a7a5421e 287 }
7592dfc4 288
6a0cf740 289 // add the cluster to the esd object
a7a5421e 290 esd->AddCaloCluster(ec);
291 delete ec;
a7a5421e 292 }
17773e2e 293
a7a5421e 294 } // cycle on clusters
17773e2e 295
296 delete [] matchedTrack;
297
a7a5421e 298 esd->SetNumberOfEMCALClusters(nClustersNew);
5d9e7bd7 299 //if(nClustersNew != nClusters)
300 //printf(" ##### nClusters %i -> new %i ##### \n", nClusters, nClustersNew );
7592dfc4 301
dc293ae9 302 //Fill ESDCaloCluster with PID weights
dc293ae9 303 AliEMCALPID *pid = new AliEMCALPID;
304 //pid->SetPrintInfo(kTRUE);
305 pid->SetReconstructor(kTRUE);
306 pid->RunPID(esd);
d0708678 307 delete pid;
f6019cda 308}
dc293ae9 309
98e9578e 310