- Reset TProcessID count after each event
[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//_________________________________________________________________________
fa42b1f3 19//--
20//-- Yves Schutz (SUBATECH)
f6019cda 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
aaa3cb7c 31#include "AliCodeTimer.h"
af885e0f 32#include "AliESDEvent.h"
89ffc0b0 33#include "AliESDCaloCluster.h"
0e7c6655 34#include "AliESDCaloCells.h"
6a0cf740 35#include "AliESDtrack.h"
5dee926e 36#include "AliEMCALLoader.h"
98e9578e 37#include "AliEMCALRawUtils.h"
0e7c6655 38#include "AliEMCALDigit.h"
f6019cda 39#include "AliEMCALClusterizerv1.h"
5dee926e 40#include "AliEMCALRecPoint.h"
dc293ae9 41#include "AliEMCALPID.h"
0964c2e9 42#include "AliEMCALTrigger.h"
1d59832c 43#include "AliRawReader.h"
fa42b1f3 44#include "AliCDBEntry.h"
45#include "AliCDBManager.h"
46#include "AliEMCALRecParam.h"
65bdc82f 47#include "AliEMCALGeometry.h"
48
72c58de0 49#include "AliRunLoader.h"
50#include "AliRun.h"
1d59832c 51
f6019cda 52ClassImp(AliEMCALReconstructor)
53
c47157cd 54AliEMCALRecParam* AliEMCALReconstructor::fgkRecParam = 0; // EMCAL rec. parameters
65bdc82f 55AliEMCALRawUtils* AliEMCALReconstructor::fgRawUtils = 0; // EMCAL raw utilities class
f6019cda 56//____________________________________________________________________________
18a21c7c 57AliEMCALReconstructor::AliEMCALReconstructor()
65bdc82f 58 : fDebug(kFALSE),fGeom(0)
f6019cda 59{
60 // ctor
65bdc82f 61 InitRecParam();
62
63 fgRawUtils = new AliEMCALRawUtils;
72c58de0 64
65 //To make sure we match with the geometry in a simulation file,
66 //let's try to get it first. If not, take the default geometry
67 AliRunLoader *rl = AliRunLoader::GetRunLoader();
68 if (rl->GetAliRun() && rl->GetAliRun()->GetDetector("EMCAL")) {
69 fGeom = dynamic_cast<AliEMCAL*>(rl->GetAliRun()->GetDetector("EMCAL"))->GetGeometry();
70 } else {
71 AliInfo(Form("Using default geometry in reconstruction"));
72 fGeom = AliEMCALGeometry::GetInstance(AliEMCALGeometry::GetDefaulGeometryName());
65bdc82f 73 }
0e7c6655 74
72c58de0 75 if(!fGeom) AliFatal(Form("Could not get geometry!"));
76
f6019cda 77}
78
0a4cb131 79//____________________________________________________________________________
18a21c7c 80AliEMCALReconstructor::AliEMCALReconstructor(const AliEMCALReconstructor & rec)
81 : AliReconstructor(rec),
65bdc82f 82 fDebug(rec.fDebug),
83 fGeom(rec.fGeom)
0a4cb131 84{
85 //copy ctor
0a4cb131 86}
f6019cda 87
88//____________________________________________________________________________
89AliEMCALReconstructor::~AliEMCALReconstructor()
90{
91 // dtor
65bdc82f 92 delete fGeom;
aaa3cb7c 93 AliCodeTimer::Instance()->Print();
f6019cda 94}
95
96//____________________________________________________________________________
fa42b1f3 97void AliEMCALReconstructor::InitRecParam() const
98{
99 // Check if the instance of AliEMCALRecParam exists,
100 // if not, get it from OCDB if available, otherwise create a default one
101
102 if (!fgkRecParam && (AliCDBManager::Instance()->IsDefaultStorageSet())) {
103 AliCDBEntry *entry = (AliCDBEntry*)
104 AliCDBManager::Instance()->Get("EMCAL/Config/RecParam");
105 if (entry) fgkRecParam = (AliEMCALRecParam*) entry->GetObject();
106 }
107
108 if(!fgkRecParam){
109 AliWarning("The Reconstruction parameters for EMCAL nonitialized - Used default one");
110 fgkRecParam = new AliEMCALRecParam;
111 }
112}
113
114//____________________________________________________________________________
c47157cd 115void AliEMCALReconstructor::Reconstruct(TTree* digitsTree, TTree* clustersTree) const
f6019cda 116{
117 // method called by AliReconstruction;
118 // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track
119 // segment maker needs access to the AliESD object to retrieve the tracks reconstructed by
120 // the global tracking.
c47157cd 121 // Works on the current event.
fa42b1f3 122
aaa3cb7c 123 AliCodeTimerAuto("")
124
c47157cd 125 AliEMCALClusterizerv1 clu;
126 clu.SetInput(digitsTree);
127 clu.SetOutput(clustersTree);
0e7c6655 128 if(Debug())
129 clu.Digits2Clusters("deb all") ;
130 else
131 clu.Digits2Clusters("") ;
132
f6019cda 133}
134
135//____________________________________________________________________________
c47157cd 136void AliEMCALReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
98e9578e 137
a68156e6 138{
c47157cd 139 // Conversion from raw data to
140 // EMCAL digits.
141 // Works on a single-event basis
85c60a8e 142
98e9578e 143 rawReader->Reset() ;
98e9578e 144
c47157cd 145 TClonesArray *digitsArr = new TClonesArray("AliEMCALDigit",100);
146 Int_t bufsize = 32000;
147 digitsTree->Branch("EMCAL", &digitsArr, bufsize);
98e9578e 148
65bdc82f 149 //must be done here because, in constructor, option is not yet known
150 fgRawUtils->SetOption(GetOption());
b4133f05 151
152 fgRawUtils->SetRawFormatHighLowGainFactor(fgkRecParam->GetHighLowGainFactor());
153 fgRawUtils->SetRawFormatOrder(fgkRecParam->GetOrderParameter());
154 fgRawUtils->SetRawFormatTau(fgkRecParam->GetTau());
155 fgRawUtils->SetNoiseThreshold(fgkRecParam->GetNoiseThreshold());
156 fgRawUtils->SetNPedSamples(fgkRecParam->GetNPedSamples());
157
65bdc82f 158 fgRawUtils->Raw2Digits(rawReader,digitsArr);
c615db53 159
160 digitsTree->Fill();
161 digitsArr->Delete();
162 delete digitsArr;
163
a68156e6 164}
165
166//____________________________________________________________________________
0e7c6655 167void AliEMCALReconstructor::FillESD(TTree* digitsTree, TTree* clustersTree,
c47157cd 168 AliESDEvent* esd) const
f6019cda 169{
98e9578e 170 // Called by AliReconstruct after Reconstruct() and global tracking and vertexing
c47157cd 171 // Works on the current event
85c60a8e 172 // Creates AliESDCaloCluster from AliEMCALRecPoints
0e7c6655 173 // and AliESDCaloCells from AliEMCALDigits
174 // Also, fills ESD with calorimeter trigger information
92da3372 175
6a0cf740 176 //######################################################
0964c2e9 177 //#########Calculate trigger and set trigger info###########
6a0cf740 178 //######################################################
aaa3cb7c 179
0964c2e9 180 AliEMCALTrigger tr ;
181 // tr.SetPatchSize(1);//create 4x4 patches
182 tr.Trigger();
183
184 Float_t maxAmp2x2 = tr.Get2x2MaxAmplitude();
185 Float_t maxAmpnxn = tr.GetnxnMaxAmplitude();
186 Float_t ampOutOfPatch2x2 = tr.Get2x2AmpOutOfPatch() ;
187 Float_t ampOutOfPatchnxn = tr.GetnxnAmpOutOfPatch() ;
188
0964c2e9 189 Int_t iSM2x2 = tr.Get2x2SuperModule();
190 Int_t iSMnxn = tr.GetnxnSuperModule();
191 Int_t iCellPhi2x2 = tr.Get2x2CellPhi();
192 Int_t iCellPhinxn = tr.GetnxnCellPhi();
193 Int_t iCellEta2x2 = tr.Get2x2CellEta();
194 Int_t iCellEtanxn = tr.GetnxnCellEta();
195
196 AliDebug(2, Form("Trigger 2x2 max amp %f, out amp %f, SM %d, iphi %d ieta %d", maxAmp2x2, ampOutOfPatch2x2, iSM2x2,iCellPhi2x2, iCellEta2x2));
197 AliDebug(2, Form("Trigger 4x4 max amp %f , out amp %f, SM %d, iphi %d, ieta %d", maxAmpnxn, ampOutOfPatchnxn, iSMnxn,iCellPhinxn, iCellEtanxn));
198
199 TVector3 pos2x2(-1,-1,-1);
200 TVector3 posnxn(-1,-1,-1);
201
65bdc82f 202 Int_t iAbsId2x2 = fGeom->GetAbsCellIdFromCellIndexes( iSM2x2, iCellPhi2x2, iCellEta2x2) ;
203 Int_t iAbsIdnxn = fGeom->GetAbsCellIdFromCellIndexes( iSMnxn, iCellPhinxn, iCellEtanxn) ;
204 fGeom->GetGlobal(iAbsId2x2, pos2x2);
205 fGeom->GetGlobal(iAbsIdnxn, posnxn);
0964c2e9 206
207 TArrayF triggerPosition(6);
208 triggerPosition[0] = pos2x2(0) ;
209 triggerPosition[1] = pos2x2(1) ;
210 triggerPosition[2] = pos2x2(2) ;
211 triggerPosition[3] = posnxn(0) ;
212 triggerPosition[4] = posnxn(1) ;
213 triggerPosition[5] = posnxn(2) ;
214
215 TArrayF triggerAmplitudes(4);
216 triggerAmplitudes[0] = maxAmp2x2 ;
217 triggerAmplitudes[1] = ampOutOfPatch2x2 ;
218 triggerAmplitudes[2] = maxAmpnxn ;
219 triggerAmplitudes[3] = ampOutOfPatchnxn ;
220
221 esd->AddEMCALTriggerPosition(triggerPosition);
222 esd->AddEMCALTriggerAmplitudes(triggerAmplitudes);
aaa3cb7c 223
0e7c6655 224 //########################################
225 //##############Fill CaloCells###############
226 //########################################
aaa3cb7c 227
0e7c6655 228 TClonesArray *digits = new TClonesArray("AliEMCALDigit",1000);
229 TBranch *branchdig = digitsTree->GetBranch("EMCAL");
230 if (!branchdig) {
231 AliError("can't get the branch with the PHOS digits !");
232 return;
233 }
234 branchdig->SetAddress(&digits);
235 digitsTree->GetEvent(0);
236 Int_t nDigits = digits->GetEntries(), idignew = 0 ;
237 AliDebug(1,Form("%d digits",nDigits));
238
239 AliESDCaloCells &emcCells = *(esd->GetEMCALCells());
240 emcCells.CreateContainer(nDigits);
241 emcCells.SetType(AliESDCaloCells::kEMCALCell);
242 for (Int_t idig = 0 ; idig < nDigits ; idig++) {
243 const AliEMCALDigit * dig = (const AliEMCALDigit*)digits->At(idig);
244 if(dig->GetAmp() > 0 ){
245 emcCells.SetCell(idignew,dig->GetId(),dig->GetAmp(), dig->GetTime());
246 idignew++;
247 }
248 }
249 emcCells.SetNumberOfCells(idignew);
250 emcCells.Sort();
251
252 //------------------------------------------------------------
253 //-----------------CLUSTERS-----------------------------
254 //------------------------------------------------------------
255 TObjArray *clusters = new TObjArray(100);
256 TBranch *branch = clustersTree->GetBranch("EMCALECARP");
257 branch->SetAddress(&clusters);
258 clustersTree->GetEvent(0);
259
260 Int_t nClusters = clusters->GetEntries(), nClustersNew=0;
261 AliDebug(1,Form("%d clusters",nClusters));
262 esd->SetFirstEMCALCluster(esd->GetNumberOfCaloClusters()); // Put after Phos clusters
263
6a0cf740 264 //######################################################
265 //#######################TRACK MATCHING###############
266 //######################################################
267 //Fill list of integers, each one is index of track to which the cluster belongs.
268
269 // step 1 - initialize array of matched track indexes
270 Int_t *matchedTrack = new Int_t[nClusters];
271 for (Int_t iclus = 0; iclus < nClusters; iclus++)
272 matchedTrack[iclus] = -1; // neg. index --> no matched track
273
274 // step 2, change the flag for all matched clusters found in tracks
275 Int_t iemcalMatch = -1;
276 Int_t endtpc = esd->GetNumberOfTracks();
277 for (Int_t itrack = 0; itrack < endtpc; itrack++) {
278 AliESDtrack * track = esd->GetTrack(itrack) ; // retrieve track
279 iemcalMatch = track->GetEMCALcluster();
65f4a419 280 if(iemcalMatch >= 0) matchedTrack[iemcalMatch] = itrack;
6a0cf740 281 }
0e7c6655 282
6a0cf740 283 //########################################
0e7c6655 284 //##############Fill CaloClusters############
6a0cf740 285 //########################################
0964c2e9 286
0e7c6655 287 esd->SetNumberOfEMCALClusters(nClusters);
5dee926e 288 for (Int_t iClust = 0 ; iClust < nClusters ; iClust++) {
c47157cd 289 const AliEMCALRecPoint * clust = (const AliEMCALRecPoint*)clusters->At(iClust);
8ada0ffe 290 //if(clust->GetClusterType()== AliESDCaloCluster::kEMCALClusterv1) nRP++; else nPC++;
85c60a8e 291 if (Debug()) clust->Print();
a7a5421e 292 // Get information from EMCAL reconstruction points
85c60a8e 293 Float_t xyz[3];
5dee926e 294 TVector3 gpos;
295 clust->GetGlobalPosition(gpos);
f6019cda 296 for (Int_t ixyz=0; ixyz<3; ixyz++)
5dee926e 297 xyz[ixyz] = gpos[ixyz];
8a11aef1 298 Float_t elipAxis[2];
92da3372 299 clust->GetElipsAxis(elipAxis);
7592dfc4 300
0e7c6655 301 //Create digits lists
302 Int_t cellMult = clust->GetMultiplicity();
303 //TArrayS digiList(digitMult);
304 Float_t *amplFloat = clust->GetEnergiesList();
305 Int_t *digitInts = clust->GetAbsId();
306 TArrayS absIdList(cellMult);
307 //Uncomment when unfolding is done
308 //TArrayD fracList(cellMult);
309
310 Int_t newCellMult = 0;
311 for (Int_t iCell=0; iCell<cellMult; iCell++) {
312 if (amplFloat[iCell] > 0) {
313 absIdList[newCellMult] = (UShort_t)(digitInts[iCell]);
314 //Uncomment when unfolding is done
315 //fracList[newCellMult] = amplFloat[iCell]/emcCells.GetCellAmplitude(digitInts[iCell]);
316 newCellMult++;
92da3372 317 }
92da3372 318 }
0e7c6655 319 absIdList.Set(newCellMult);
320 //Uncomment when unfolding is done
321 //fracList.Set(newCellMult);
322
323 if(newCellMult > 0) { // accept cluster if it has some digit
a7a5421e 324 nClustersNew++;
65721814 325 //Primaries
7592dfc4 326 Int_t parentMult = 0;
fa42b1f3 327 Int_t *parentList = clust->GetParents(parentMult);
0e7c6655 328
a7a5421e 329 // fills the ESDCaloCluster
330 AliESDCaloCluster * ec = new AliESDCaloCluster() ;
0e7c6655 331 ec->SetClusterType(AliESDCaloCluster::kEMCALClusterv1);
7592dfc4 332 ec->SetPosition(xyz);
333 ec->SetE(clust->GetEnergy());
0e7c6655 334 ec->SetNCells(newCellMult);
335 //Change type of list from short to ushort
336 UShort_t *newAbsIdList = new UShort_t[newCellMult];
337 //Uncomment when unfolding is done
338 //Double_t *newFracList = new Double_t[newCellMult];
339 for(Int_t i = 0; i < newCellMult ; i++) {
340 newAbsIdList[i]=absIdList[i];
341 //Uncomment when unfolding is done
342 //newFracList[i]=fracList[i];
343 }
344 ec->SetCellsAbsId(newAbsIdList);
345 //Uncomment when unfolding is done
346 //ec->SetCellsAmplitudeFraction(newFracList);
347
348 ec->SetClusterDisp(clust->GetDispersion());
349 ec->SetClusterChi2(-1); //not yet implemented
350 ec->SetM02(elipAxis[0]*elipAxis[0]) ;
351 ec->SetM20(elipAxis[1]*elipAxis[1]) ;
352 ec->SetM11(-1) ; //not yet implemented
353
354 TArrayI arrayTrackMatched(1);// Only one track, temporal solution.
355 arrayTrackMatched[0]= matchedTrack[iClust];
356 ec->AddTracksMatched(arrayTrackMatched);
357
358 TArrayI arrayParents(parentMult,parentList);
359 ec->AddLabels(arrayParents);
360
7592dfc4 361
6a0cf740 362 // add the cluster to the esd object
a7a5421e 363 esd->AddCaloCluster(ec);
364 delete ec;
0e7c6655 365 //delete [] newAbsIdList ;
366 //delete [] newFracList ;
a7a5421e 367 }
368 } // cycle on clusters
0e7c6655 369
17773e2e 370 delete [] matchedTrack;
0e7c6655 371
a7a5421e 372 esd->SetNumberOfEMCALClusters(nClustersNew);
5d9e7bd7 373 //if(nClustersNew != nClusters)
374 //printf(" ##### nClusters %i -> new %i ##### \n", nClusters, nClustersNew );
7592dfc4 375
dc293ae9 376 //Fill ESDCaloCluster with PID weights
0e7c6655 377 AliEMCALPID *pid = new AliEMCALPID;
378 //pid->SetPrintInfo(kTRUE);
379 pid->SetReconstructor(kTRUE);
380 pid->RunPID(esd);
381 delete pid;
aaa3cb7c 382
f6019cda 383}
dc293ae9 384
98e9578e 385