Using TArrayI instead of TArrayS for the labels and track indexes (Gustavo)
[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"
77ea1c6f 48#include "AliPHOSRawDecoderv1.h"
9a2cdbdf 49#include "AliPHOSRawDigiProducer.h"
50#include "AliPHOSPulseGenerator.h"
e957fea8 51
f444a19f 52ClassImp(AliPHOSReconstructor)
d15a28e7 53
2e60107f 54Bool_t AliPHOSReconstructor::fgDebug = kFALSE ;
3799bcb5 55AliPHOSRecoParam* AliPHOSReconstructor::fgkRecoParamEmc =0; // EMC rec. parameters
56AliPHOSRecoParam* AliPHOSReconstructor::fgkRecoParamCpv =0; // CPV rec. parameters
2e60107f 57
d15a28e7 58//____________________________________________________________________________
9a2cdbdf 59AliPHOSReconstructor::AliPHOSReconstructor() :
60 fGeom(NULL)
d15a28e7 61{
b2a60966 62 // ctor
0379a13e 63
3799bcb5 64 if (!fgkRecoParamEmc) {
65 AliWarning("The Reconstruction parameters for EMC nonitialized - Used default one");
66 fgkRecoParamEmc = AliPHOSRecoParamEmc::GetEmcDefaultParameters();
67 }
68
69 if (!fgkRecoParamCpv) {
70 AliWarning("The Reconstruction parameters for CPV nonitialized - Used default one");
71 fgkRecoParamCpv = AliPHOSRecoParamCpv::GetCpvDefaultParameters();
72 }
73
9a2cdbdf 74 fGeom = AliPHOSGeometry::GetInstance("IHEP","");
e68222ce 75}
6ad0bfa0 76
0379a13e 77//____________________________________________________________________________
78 AliPHOSReconstructor::~AliPHOSReconstructor()
79{
80 // dtor
9a2cdbdf 81 delete fGeom;
0379a13e 82}
7acf6008 83
7acf6008 84//____________________________________________________________________________
9a2cdbdf 85void AliPHOSReconstructor::Reconstruct(TTree* digitsTree, TTree* clustersTree) const
35293055 86{
9a2cdbdf 87 // 'single-event' local reco method called by AliReconstruction;
dfe0be07 88 // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track
af885e0f 89 // segment maker needs access to the AliESDEvent object to retrieve the tracks reconstructed by
dfe0be07 90 // the global tracking.
9a2cdbdf 91
92 AliPHOSClusterizerv1 clu(fGeom);
93 clu.SetInput(digitsTree);
94 clu.SetOutput(clustersTree);
a68156e6 95 if ( Debug() )
9a2cdbdf 96 clu.Digits2Clusters("deb all") ;
a68156e6 97 else
9a2cdbdf 98 clu.Digits2Clusters("") ;
a68156e6 99}
100
101//____________________________________________________________________________
9a2cdbdf 102void AliPHOSReconstructor::FillESD(TTree* digitsTree, TTree* clustersTree,
103 AliESDEvent* esd) const
a68156e6 104{
9a2cdbdf 105 // This method produces PHOS rec-particles,
106 // then it creates AliESDtracks out of them and
107 // write tracks to the ESD
108
109 AliPHOSTrackSegmentMaker *tsm = new AliPHOSTrackSegmentMakerv1(fGeom);
e68222ce 110 AliPHOSPID *pid = new AliPHOSPIDv1 (fGeom);
111
9a2cdbdf 112 // do current event; the loop over events is done by AliReconstruction::Run()
113 tsm->SetESD(esd) ;
114 tsm->SetInput(clustersTree);
115 if ( Debug() )
116 tsm->Clusters2TrackSegments("deb all") ;
117 else
118 tsm->Clusters2TrackSegments("") ;
35293055 119
9a2cdbdf 120 pid->SetInput(clustersTree, tsm->GetTrackSegments()) ;
121 pid->SetESD(esd) ;
dfe0be07 122 if ( Debug() )
9a2cdbdf 123 pid->TrackSegments2RecParticles("deb all") ;
dfe0be07 124 else
9a2cdbdf 125 pid->TrackSegments2RecParticles("") ;
7acf6008 126
77ea1c6f 127
23904d16 128 // This function creates AliESDtracks from AliPHOSRecParticles
129 // and
130 // writes them to the ESD
bf72996e 131
9a2cdbdf 132 TClonesArray *recParticles = pid->GetRecParticles();
dfe0be07 133 Int_t nOfRecParticles = recParticles->GetEntries();
a5fa6165 134
85c60a8e 135 esd->SetNumberOfPHOSClusters(nOfRecParticles) ;
dd7ee508 136 esd->SetFirstPHOSCluster(esd->GetNumberOfCaloClusters()) ;
a5fa6165 137
9a2cdbdf 138 AliDebug(2,Form("%d rec. particles, option %s",nOfRecParticles,GetOption()));
8013c27e 139
64df000d 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]));
77ea1c6f 233
7592dfc4 234 //Create digits lists
25ed816e 235 Int_t digitMult = emcRP->GetDigitsMultiplicity();
236 Int_t *digitsList = emcRP->GetDigitsList();
77ea1c6f 237 Float_t *rpElist = emcRP->GetEnergiesList() ;
7592dfc4 238 Short_t *amplList = new Short_t[digitMult];
239 Short_t *timeList = new Short_t[digitMult];
240 Short_t *digiList = new Short_t[digitMult];
25ed816e 241
77ea1c6f 242
7592dfc4 243 // Convert Float_t* and Int_t* to Short_t* to save memory
25ed816e 244 for (Int_t iDigit=0; iDigit<digitMult; iDigit++) {
77ea1c6f 245
e68222ce 246 AliPHOSDigit *digit = static_cast<AliPHOSDigit *>(fDigitsArr->At(digitsList[iDigit]));
f4e0dd30 247 amplList[iDigit] =
77ea1c6f 248 (Short_t)(TMath::Min(rpElist[iDigit]*gev500,kBigShort)); // Energy in units of GeV/500
249// We should add here not full energy of digit, but unfolded one, stored in RecPoint
250// amplList[iDigit] =
251// (Short_t)(TMath::Min(digit->GetEnergy()*gev500,kBigShort)); // Energy in units of GeV/500
252 timeList[iDigit] =
253 (Short_t)(TMath::Max(-kBigShort,TMath::Min(digit->GetTime()*nsec100,kBigShort))); // time in units of 0.01 ns
7592dfc4 254 digiList[iDigit] = (Short_t)(digit->GetId());
25ed816e 255 }
7592dfc4 256
77ea1c6f 257
258
7592dfc4 259 //Primaries
260 Int_t primMult = 0;
4dd59c4a 261 Int_t *primList = emcRP->GetPrimaries(primMult);
262
7592dfc4 263 // fills the ESDCaloCluster
264
8ada0ffe 265 ec->SetClusterType(AliESDCaloCluster::kPHOSCluster);
266 ec->SetPosition(xyz); //rec.point position in MARS
267 ec->SetE(rp->Energy()); //total particle energy
25ed816e 268 ec->SetClusterDisp(emcRP->GetDispersion()); //cluster dispersion
e68222ce 269 ec->SetPid(rp->GetPID()) ; //array of particle identification
25ed816e 270 ec->SetM02(emcRP->GetM2x()) ; //second moment M2x
271 ec->SetM20(emcRP->GetM2z()) ; //second moment M2z
272 ec->SetNExMax(emcRP->GetNExMax()); //number of local maxima
77ea1c6f 273 ec->SetEmcCpvDistance(ts->GetCpvDistance("r")); //Only radius, what about separate x,z????
25ed816e 274 ec->SetClusterChi2(-1); //not yet implemented
275 ec->SetM11(-1) ; //not yet implemented
3744a6cf 276
7592dfc4 277 //Digits Lists
278 TArrayS arrayAmpList(digitMult,amplList);
279 TArrayS arrayTimeList(digitMult,timeList);
280 TArrayS arrayIndexList(digitMult,digiList);
281 ec->AddDigitAmplitude(arrayAmpList);
282 ec->AddDigitTime(arrayTimeList);
283 ec->AddDigitIndex(arrayIndexList);
284
3744a6cf 285 //Distance to the nearest bad crystal
286 ec->SetDistanceToBadChannel(emcRP->GetDistanceToBadCrystal());
7592dfc4 287
288 //Array of MC indeces
4dd59c4a 289 TArrayI arrayPrim(primMult,primList);
7592dfc4 290 ec->AddLabels(arrayPrim);
291
292 //Array of tracks uncomment when available in future
293 //TArrayS arrayTrackMatched(1);// Only one track, temporal solution.
294 //arrayTrackMatched[0]= (Short_t)(matchedTrack[iClust]);
295 //ec->AddTracksMatched(arrayTrackMatched);
64df000d 296
dfe0be07 297 // add the track to the esd object
85c60a8e 298 esd->AddCaloCluster(ec);
9a2cdbdf 299 delete ec;
300 delete [] primList;
301 delete [] amplList;
302 delete [] timeList;
303 delete [] digiList;
e68222ce 304 }
6e0b8dc1 305 fDigitsArr ->Delete();
306 delete fDigitsArr;
307 fEmcRecPoints->Delete();
308 delete fEmcRecPoints;
e68222ce 309 delete tsm;
310 delete pid;
dd7ee508 311}
312
e68222ce 313//____________________________________________________________________________
d76c31f4 314AliTracker* AliPHOSReconstructor::CreateTracker() const
dd7ee508 315{
9a2cdbdf 316 // creates the PHOS tracker
317 return new AliPHOSTracker();
318}
dd7ee508 319
1267d56d 320//____________________________________________________________________________
9a2cdbdf 321void AliPHOSReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
322{
323 // Converts raw data to
324 // PHOS digits
325 // Works on a single-event basis
dd7ee508 326
9a2cdbdf 327 rawReader->Reset() ;
dd7ee508 328
77ea1c6f 329 AliPHOSRawDecoder * dc ;
330
331 if(strcmp(fgkRecoParamEmc->DecoderVersion(),"v1")==0)
332 dc=new AliPHOSRawDecoderv1(rawReader);
333 else
334 dc=new AliPHOSRawDecoder(rawReader);
335
9a2cdbdf 336 TString option = GetOption();
337 if (option.Contains("OldRCUFormat"))
77ea1c6f 338 dc->SetOldRCUFormat(kTRUE);
9a2cdbdf 339 else
77ea1c6f 340 dc->SetOldRCUFormat(kFALSE);
86121c91 341
77ea1c6f 342 dc->SubtractPedestals(fgkRecoParamEmc->SubtractPedestals());
86121c91 343
9a2cdbdf 344 TClonesArray *digits = new TClonesArray("AliPHOSDigit",1);
345 digits->SetName("DIGITS");
346 Int_t bufsize = 32000;
347 digitsTree->Branch("PHOS", &digits, bufsize);
dd7ee508 348
9a2cdbdf 349 AliPHOSRawDigiProducer pr;
77ea1c6f 350 pr.MakeDigits(digits,dc);
351
352 delete dc ;
7592dfc4 353
9a2cdbdf 354 //ADC counts -> GeV
77ea1c6f 355 if(strcmp(fgkRecoParamEmc->DecoderVersion(),"v1")==0){ //"Energy" calculated as fit
356 for(Int_t i=0; i<digits->GetEntries(); i++) {
357 AliPHOSDigit* digit = (AliPHOSDigit*)digits->At(i);
358 digit->SetEnergy(digit->GetEnergy()*0.005); //We assume here 5 MeV/ADC channel
359 digit->SetTime(digit->GetTime()*1.e-7) ; //Here we assume sample step==100 ns TO BE FIXED!!!!!!!!!!!!!
360 }
361 }
362 else{ //Digits energy calculated as maximal energy
363 for(Int_t i=0; i<digits->GetEntries(); i++) {
364 AliPHOSDigit* digit = (AliPHOSDigit*)digits->At(i);
365 digit->SetEnergy(digit->GetEnergy()/AliPHOSPulseGenerator::GeV2ADC());
366 }
9a2cdbdf 367 }
368
1267d56d 369 // Clean up digits below the noise threshold
370 // Assuming the digit noise to be 4 MeV, we suppress digits within
371 // 3-sigma of the noise.
372 // This parameter should be passed via AliPHOSRecoParamEmc later
373
374 const Double_t emcDigitThreshold = 0.012;
375 for(Int_t i=0; i<digits->GetEntries(); i++) {
376 AliPHOSDigit* digit = (AliPHOSDigit*)digits->At(i);
377 if(digit->GetEnergy() < emcDigitThreshold)
378 digits->RemoveAt(i) ;
379 }
380 digits->Compress() ;
381
9a2cdbdf 382 //!!!!for debug!!!
383 Int_t modMax=-111;
384 Int_t colMax=-111;
385 Int_t rowMax=-111;
386 Float_t eMax=-333;
387 //!!!for debug!!!
388
389 Int_t relId[4];
390 for(Int_t iDigit=0; iDigit<digits->GetEntries(); iDigit++) {
391 AliPHOSDigit* digit = (AliPHOSDigit*)digits->At(iDigit);
392 if(digit->GetEnergy()>eMax) {
393 fGeom->AbsToRelNumbering(digit->GetId(),relId);
394 eMax=digit->GetEnergy();
395 modMax=relId[0];
396 rowMax=relId[2];
397 colMax=relId[3];
dd7ee508 398 }
399 }
400
9a2cdbdf 401 AliDebug(1,Form("Digit with max. energy: modMax %d colMax %d rowMax %d eMax %f\n\n",
402 modMax,colMax,rowMax,eMax));
dd7ee508 403
9a2cdbdf 404 digitsTree->Fill();
e68222ce 405 digits->Delete();
406 delete digits;
d7d3b67b 407}