The data members fEMCALClusterCluster and fPHOSCluster are removed from AliESDCaloClu...
[u/mrichter/AliRoot.git] / PHOS / AliPHOSReconstructor.cxx
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d15a28e7 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
b2a60966 16/* $Id$ */
17
d15a28e7 18//_________________________________________________________________________
a3dfe79c 19//*--
dfe0be07 20//*-- Yves Schutz (SUBATECH)
21// Reconstruction class. Redesigned from the old AliReconstructionner class and
22// derived from STEER/AliReconstructor.
23//
d15a28e7 24// --- ROOT system ---
25
d15a28e7 26// --- Standard library ---
364de5c6 27
d15a28e7 28// --- AliRoot header files ---
9a2cdbdf 29#include "AliLog.h"
af885e0f 30#include "AliESDEvent.h"
33ba95c3 31#include "AliESDCaloCluster.h"
f444a19f 32#include "AliPHOSReconstructor.h"
7acf6008 33#include "AliPHOSClusterizerv1.h"
7acf6008 34#include "AliPHOSTrackSegmentMakerv1.h"
35#include "AliPHOSPIDv1.h"
23904d16 36#include "AliPHOSTracker.h"
d22dd3b4 37#include "AliRawReader.h"
64df000d 38#include "AliPHOSTrigger.h"
39#include "AliPHOSGeometry.h"
86121c91 40#include "AliPHOSRecoParam.h"
3799bcb5 41#include "AliPHOSRecoParamEmc.h"
42#include "AliPHOSRecoParamCpv.h"
9a2cdbdf 43#include "AliPHOSDigit.h"
44#include "AliPHOSTrackSegment.h"
45#include "AliPHOSEmcRecPoint.h"
46#include "AliPHOSRecParticle.h"
47#include "AliPHOSRawDecoder.h"
48#include "AliPHOSRawDigiProducer.h"
49#include "AliPHOSPulseGenerator.h"
e957fea8 50
f444a19f 51ClassImp(AliPHOSReconstructor)
d15a28e7 52
2e60107f 53Bool_t AliPHOSReconstructor::fgDebug = kFALSE ;
3799bcb5 54AliPHOSRecoParam* AliPHOSReconstructor::fgkRecoParamEmc =0; // EMC rec. parameters
55AliPHOSRecoParam* AliPHOSReconstructor::fgkRecoParamCpv =0; // CPV rec. parameters
2e60107f 56
d15a28e7 57//____________________________________________________________________________
9a2cdbdf 58AliPHOSReconstructor::AliPHOSReconstructor() :
59 fGeom(NULL)
d15a28e7 60{
b2a60966 61 // ctor
0379a13e 62
3799bcb5 63 if (!fgkRecoParamEmc) {
64 AliWarning("The Reconstruction parameters for EMC nonitialized - Used default one");
65 fgkRecoParamEmc = AliPHOSRecoParamEmc::GetEmcDefaultParameters();
66 }
67
68 if (!fgkRecoParamCpv) {
69 AliWarning("The Reconstruction parameters for CPV nonitialized - Used default one");
70 fgkRecoParamCpv = AliPHOSRecoParamCpv::GetCpvDefaultParameters();
71 }
72
9a2cdbdf 73 fGeom = AliPHOSGeometry::GetInstance("IHEP","");
e68222ce 74}
6ad0bfa0 75
0379a13e 76//____________________________________________________________________________
77 AliPHOSReconstructor::~AliPHOSReconstructor()
78{
79 // dtor
9a2cdbdf 80 delete fGeom;
0379a13e 81}
7acf6008 82
7acf6008 83//____________________________________________________________________________
9a2cdbdf 84void AliPHOSReconstructor::Reconstruct(TTree* digitsTree, TTree* clustersTree) const
35293055 85{
9a2cdbdf 86 // 'single-event' local reco method called by AliReconstruction;
dfe0be07 87 // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track
af885e0f 88 // segment maker needs access to the AliESDEvent object to retrieve the tracks reconstructed by
dfe0be07 89 // the global tracking.
9a2cdbdf 90
91 AliPHOSClusterizerv1 clu(fGeom);
92 clu.SetInput(digitsTree);
93 clu.SetOutput(clustersTree);
a68156e6 94 if ( Debug() )
9a2cdbdf 95 clu.Digits2Clusters("deb all") ;
a68156e6 96 else
9a2cdbdf 97 clu.Digits2Clusters("") ;
a68156e6 98}
99
100//____________________________________________________________________________
9a2cdbdf 101void AliPHOSReconstructor::FillESD(TTree* digitsTree, TTree* clustersTree,
102 AliESDEvent* esd) const
a68156e6 103{
9a2cdbdf 104 // This method produces PHOS rec-particles,
105 // then it creates AliESDtracks out of them and
106 // write tracks to the ESD
107
108 AliPHOSTrackSegmentMaker *tsm = new AliPHOSTrackSegmentMakerv1(fGeom);
e68222ce 109 AliPHOSPID *pid = new AliPHOSPIDv1 (fGeom);
110
9a2cdbdf 111 // do current event; the loop over events is done by AliReconstruction::Run()
112 tsm->SetESD(esd) ;
113 tsm->SetInput(clustersTree);
114 if ( Debug() )
115 tsm->Clusters2TrackSegments("deb all") ;
116 else
117 tsm->Clusters2TrackSegments("") ;
35293055 118
9a2cdbdf 119 pid->SetInput(clustersTree, tsm->GetTrackSegments()) ;
120 pid->SetESD(esd) ;
dfe0be07 121 if ( Debug() )
9a2cdbdf 122 pid->TrackSegments2RecParticles("deb all") ;
dfe0be07 123 else
9a2cdbdf 124 pid->TrackSegments2RecParticles("") ;
7acf6008 125
9a2cdbdf 126
23904d16 127 // This function creates AliESDtracks from AliPHOSRecParticles
128 // and
129 // writes them to the ESD
bf72996e 130
9a2cdbdf 131 TClonesArray *recParticles = pid->GetRecParticles();
dfe0be07 132 Int_t nOfRecParticles = recParticles->GetEntries();
a5fa6165 133
85c60a8e 134 esd->SetNumberOfPHOSClusters(nOfRecParticles) ;
dd7ee508 135 esd->SetFirstPHOSCluster(esd->GetNumberOfCaloClusters()) ;
a5fa6165 136
9a2cdbdf 137 AliDebug(2,Form("%d rec. particles, option %s",nOfRecParticles,GetOption()));
8013c27e 138
64df000d 139
140 //#########Calculate trigger and set trigger info###########
141
142 AliPHOSTrigger tr ;
143 // tr.SetPatchSize(1);//create 4x4 patches
144 tr.Trigger();
145
146 Float_t maxAmp2x2 = tr.Get2x2MaxAmplitude();
147 Float_t maxAmpnxn = tr.GetnxnMaxAmplitude();
148 Float_t ampOutOfPatch2x2 = tr.Get2x2AmpOutOfPatch() ;
149 Float_t ampOutOfPatchnxn = tr.GetnxnAmpOutOfPatch() ;
150
64df000d 151 Int_t iSM2x2 = tr.Get2x2SuperModule();
152 Int_t iSMnxn = tr.GetnxnSuperModule();
153 Int_t iCrystalPhi2x2 = tr.Get2x2CrystalPhi();
154 Int_t iCrystalPhinxn = tr.GetnxnCrystalPhi();
155 Int_t iCrystalEta2x2 = tr.Get2x2CrystalEta();
156 Int_t iCrystalEtanxn = tr.GetnxnCrystalEta();
157
158 AliDebug(2, Form("Trigger 2x2 max amp %f, out amp %f, SM %d, iphi %d ieta %d", maxAmp2x2, ampOutOfPatch2x2, iSM2x2,iCrystalPhi2x2, iCrystalEta2x2));
159 AliDebug(2, Form("Trigger 4x4 max amp %f , out amp %f, SM %d, iphi %d, ieta %d", maxAmpnxn, ampOutOfPatchnxn, iSMnxn,iCrystalPhinxn, iCrystalEtanxn));
160
24b8fcca 161 Int_t iRelId2x2 []= {iSM2x2+1,0,iCrystalPhi2x2,iCrystalEta2x2};// PHOS modules in order to calculate AbsId need to be 1-5 not 0-4 as returns trigger.
64df000d 162 Int_t iAbsId2x2 =-1;
24b8fcca 163 Int_t iRelIdnxn []= {iSMnxn+1,0,iCrystalPhinxn,iCrystalEtanxn};// PHOS modules in order to calculate AbsId need to be 1-5 not 0-4 as returns trigger.
64df000d 164 Int_t iAbsIdnxn =-1;
165 TVector3 pos2x2(-1,-1,-1);
166 TVector3 posnxn(-1,-1,-1);
9a2cdbdf 167 fGeom->RelToAbsNumbering(iRelId2x2, iAbsId2x2);
168 fGeom->RelToAbsNumbering(iRelIdnxn, iAbsIdnxn);
169 fGeom->RelPosInAlice(iAbsId2x2, pos2x2);
170 fGeom->RelPosInAlice(iAbsIdnxn, posnxn);
64df000d 171
172 TArrayF triggerPosition(6);
173 triggerPosition[0] = pos2x2(0) ;
174 triggerPosition[1] = pos2x2(1) ;
175 triggerPosition[2] = pos2x2(2) ;
176 triggerPosition[3] = posnxn(0) ;
177 triggerPosition[4] = posnxn(1) ;
178 triggerPosition[5] = posnxn(2) ;
179
180 TArrayF triggerAmplitudes(4);
181 triggerAmplitudes[0] = maxAmp2x2 ;
182 triggerAmplitudes[1] = ampOutOfPatch2x2 ;
183 triggerAmplitudes[2] = maxAmpnxn ;
184 triggerAmplitudes[3] = ampOutOfPatchnxn ;
185
186 //esd->SetPHOSTriggerCells(triggerPosition);
187 esd->AddPHOSTriggerPosition(triggerPosition);
188 esd->AddPHOSTriggerAmplitudes(triggerAmplitudes);
189
190 //######################################
7592dfc4 191
e68222ce 192 // Read digits array
193 TBranch *branch = digitsTree->GetBranch("PHOS");
194 if (!branch) {
195 AliError("can't get the branch with the PHOS digits !");
196 return;
197 }
198 TClonesArray *fDigitsArr = new TClonesArray("AliPHOSDigit",100);
199 branch->SetAddress(&fDigitsArr);
200 branch->GetEntry(0);
201
202 // Get the clusters array
203 TBranch *emcbranch = clustersTree->GetBranch("PHOSEmcRP");
204 if (!emcbranch) {
205 AliError("can't get the branch with the PHOS EMC clusters !");
206 return;
207 }
208
209 TObjArray *fEmcRecPoints = new TObjArray(100) ;
210 emcbranch->SetAddress(&fEmcRecPoints);
211 emcbranch->GetEntry(0);
212
64df000d 213 //Fill CaloClusters
f4e0dd30 214 const Float_t kBigShort = std::numeric_limits<short int>::max() - 1;
215 const Float_t nsec100 = 1e9*100.; // units of 0.01 ns
216 const Float_t gev500 = 500.; // units of GeV/500
217
dfe0be07 218 for (Int_t recpart = 0 ; recpart < nOfRecParticles ; recpart++) {
219 AliPHOSRecParticle * rp = dynamic_cast<AliPHOSRecParticle*>(recParticles->At(recpart));
220 if (Debug())
221 rp->Print();
25ed816e 222 // Get track segment and EMC rec.point associated with this rec.particle
9a2cdbdf 223 AliPHOSTrackSegment *ts = static_cast<AliPHOSTrackSegment *>(tsm->GetTrackSegments()->At(rp->GetPHOSTSIndex()));
224
e68222ce 225 AliPHOSEmcRecPoint *emcRP = static_cast<AliPHOSEmcRecPoint *>(fEmcRecPoints->At(ts->GetEmcIndex()));
25ed816e 226 AliESDCaloCluster *ec = new AliESDCaloCluster() ;
e68222ce 227
85c60a8e 228 Float_t xyz[3];
8013c27e 229 for (Int_t ixyz=0; ixyz<3; ixyz++)
230 xyz[ixyz] = rp->GetPos()[ixyz];
dd7ee508 231
232 AliDebug(2,Form("Global position xyz=(%f,%f,%f)",xyz[0],xyz[1],xyz[2]));
233
7592dfc4 234 //Create digits lists
25ed816e 235 Int_t digitMult = emcRP->GetDigitsMultiplicity();
236 Int_t *digitsList = emcRP->GetDigitsList();
7592dfc4 237 Short_t *amplList = new Short_t[digitMult];
238 Short_t *timeList = new Short_t[digitMult];
239 Short_t *digiList = new Short_t[digitMult];
25ed816e 240
7592dfc4 241 // Convert Float_t* and Int_t* to Short_t* to save memory
25ed816e 242 for (Int_t iDigit=0; iDigit<digitMult; iDigit++) {
e68222ce 243 AliPHOSDigit *digit = static_cast<AliPHOSDigit *>(fDigitsArr->At(digitsList[iDigit]));
f4e0dd30 244 amplList[iDigit] =
245 (Short_t)(TMath::Min(digit->GetEnergy()*gev500,kBigShort)); // Energy in units of GeV/500
246 timeList[iDigit] =
247 (Short_t)(TMath::Min(digit->GetTime()*nsec100,kBigShort)); // time in units of 0.01 ns
7592dfc4 248 digiList[iDigit] = (Short_t)(digit->GetId());
25ed816e 249 }
7592dfc4 250
251 //Primaries
252 Int_t primMult = 0;
253 Int_t *primInts = emcRP->GetPrimaries(primMult);
254 Short_t *primList = new Short_t[primMult];
255 for (Int_t ipr=0; ipr<primMult; ipr++)
256 primList[ipr] = (Short_t)(primInts[ipr]);
257
258 // fills the ESDCaloCluster
259
8ada0ffe 260 ec->SetClusterType(AliESDCaloCluster::kPHOSCluster);
261 ec->SetPosition(xyz); //rec.point position in MARS
262 ec->SetE(rp->Energy()); //total particle energy
25ed816e 263 ec->SetClusterDisp(emcRP->GetDispersion()); //cluster dispersion
e68222ce 264 ec->SetPid(rp->GetPID()) ; //array of particle identification
25ed816e 265 ec->SetM02(emcRP->GetM2x()) ; //second moment M2x
266 ec->SetM20(emcRP->GetM2z()) ; //second moment M2z
267 ec->SetNExMax(emcRP->GetNExMax()); //number of local maxima
25ed816e 268 ec->SetEmcCpvDistance(-1); //not yet implemented
269 ec->SetClusterChi2(-1); //not yet implemented
270 ec->SetM11(-1) ; //not yet implemented
3744a6cf 271
7592dfc4 272 //Digits Lists
273 TArrayS arrayAmpList(digitMult,amplList);
274 TArrayS arrayTimeList(digitMult,timeList);
275 TArrayS arrayIndexList(digitMult,digiList);
276 ec->AddDigitAmplitude(arrayAmpList);
277 ec->AddDigitTime(arrayTimeList);
278 ec->AddDigitIndex(arrayIndexList);
279
3744a6cf 280 //Distance to the nearest bad crystal
281 ec->SetDistanceToBadChannel(emcRP->GetDistanceToBadCrystal());
7592dfc4 282
283 //Array of MC indeces
284 TArrayS arrayPrim(primMult,primList);
285 ec->AddLabels(arrayPrim);
286
287 //Array of tracks uncomment when available in future
288 //TArrayS arrayTrackMatched(1);// Only one track, temporal solution.
289 //arrayTrackMatched[0]= (Short_t)(matchedTrack[iClust]);
290 //ec->AddTracksMatched(arrayTrackMatched);
64df000d 291
dfe0be07 292 // add the track to the esd object
85c60a8e 293 esd->AddCaloCluster(ec);
9a2cdbdf 294 delete ec;
295 delete [] primList;
296 delete [] amplList;
297 delete [] timeList;
298 delete [] digiList;
e68222ce 299 }
6e0b8dc1 300 fDigitsArr ->Delete();
301 delete fDigitsArr;
302 fEmcRecPoints->Delete();
303 delete fEmcRecPoints;
e68222ce 304 delete tsm;
305 delete pid;
dd7ee508 306}
307
e68222ce 308//____________________________________________________________________________
d76c31f4 309AliTracker* AliPHOSReconstructor::CreateTracker() const
dd7ee508 310{
9a2cdbdf 311 // creates the PHOS tracker
312 return new AliPHOSTracker();
313}
dd7ee508 314
1267d56d 315//____________________________________________________________________________
9a2cdbdf 316void AliPHOSReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
317{
318 // Converts raw data to
319 // PHOS digits
320 // Works on a single-event basis
dd7ee508 321
9a2cdbdf 322 rawReader->Reset() ;
dd7ee508 323
9a2cdbdf 324 AliPHOSRawDecoder dc(rawReader);
325 TString option = GetOption();
326 if (option.Contains("OldRCUFormat"))
327 dc.SetOldRCUFormat(kTRUE);
328 else
329 dc.SetOldRCUFormat(kFALSE);
86121c91 330
331 dc.SubtractPedestals(fgkRecoParamEmc->SubtractPedestals());
332
9a2cdbdf 333 TClonesArray *digits = new TClonesArray("AliPHOSDigit",1);
334 digits->SetName("DIGITS");
335 Int_t bufsize = 32000;
336 digitsTree->Branch("PHOS", &digits, bufsize);
dd7ee508 337
9a2cdbdf 338 AliPHOSRawDigiProducer pr;
339 pr.MakeDigits(digits,&dc);
7592dfc4 340
9a2cdbdf 341 //ADC counts -> GeV
342 for(Int_t i=0; i<digits->GetEntries(); i++) {
343 AliPHOSDigit* digit = (AliPHOSDigit*)digits->At(i);
344 digit->SetEnergy(digit->GetEnergy()/AliPHOSPulseGenerator::GeV2ADC());
345 }
346
1267d56d 347 // Clean up digits below the noise threshold
348 // Assuming the digit noise to be 4 MeV, we suppress digits within
349 // 3-sigma of the noise.
350 // This parameter should be passed via AliPHOSRecoParamEmc later
351
352 const Double_t emcDigitThreshold = 0.012;
353 for(Int_t i=0; i<digits->GetEntries(); i++) {
354 AliPHOSDigit* digit = (AliPHOSDigit*)digits->At(i);
355 if(digit->GetEnergy() < emcDigitThreshold)
356 digits->RemoveAt(i) ;
357 }
358 digits->Compress() ;
359
9a2cdbdf 360 //!!!!for debug!!!
361 Int_t modMax=-111;
362 Int_t colMax=-111;
363 Int_t rowMax=-111;
364 Float_t eMax=-333;
365 //!!!for debug!!!
366
367 Int_t relId[4];
368 for(Int_t iDigit=0; iDigit<digits->GetEntries(); iDigit++) {
369 AliPHOSDigit* digit = (AliPHOSDigit*)digits->At(iDigit);
370 if(digit->GetEnergy()>eMax) {
371 fGeom->AbsToRelNumbering(digit->GetId(),relId);
372 eMax=digit->GetEnergy();
373 modMax=relId[0];
374 rowMax=relId[2];
375 colMax=relId[3];
dd7ee508 376 }
377 }
378
9a2cdbdf 379 AliDebug(1,Form("Digit with max. energy: modMax %d colMax %d rowMax %d eMax %f\n\n",
380 modMax,colMax,rowMax,eMax));
dd7ee508 381
9a2cdbdf 382 digitsTree->Fill();
e68222ce 383 digits->Delete();
384 delete digits;
d7d3b67b 385}