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 ---
30 #include "AliPHOSQualAssDataMaker.h"
31 #include "AliESDEvent.h"
32 #include "AliESDCaloCluster.h"
33 #include "AliPHOSReconstructor.h"
34 #include "AliPHOSClusterizerv1.h"
35 #include "AliPHOSTrackSegmentMakerv1.h"
36 #include "AliPHOSPIDv1.h"
37 #include "AliPHOSTracker.h"
38 #include "AliRawReader.h"
39 #include "AliPHOSTrigger.h"
40 #include "AliPHOSGeometry.h"
41 #include "AliPHOSRecoParamEmc.h"
42 #include "AliPHOSRecoParamCpv.h"
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"
51 ClassImp(AliPHOSReconstructor)
53 Bool_t AliPHOSReconstructor::fgDebug = kFALSE ;
54 AliPHOSRecoParam* AliPHOSReconstructor::fgkRecoParamEmc =0; // EMC rec. parameters
55 AliPHOSRecoParam* AliPHOSReconstructor::fgkRecoParamCpv =0; // CPV rec. parameters
57 //____________________________________________________________________________
58 AliPHOSReconstructor::AliPHOSReconstructor() :
63 if (!fgkRecoParamEmc) {
64 AliWarning("The Reconstruction parameters for EMC nonitialized - Used default one");
65 fgkRecoParamEmc = AliPHOSRecoParamEmc::GetEmcDefaultParameters();
68 if (!fgkRecoParamCpv) {
69 AliWarning("The Reconstruction parameters for CPV nonitialized - Used default one");
70 fgkRecoParamCpv = AliPHOSRecoParamCpv::GetCpvDefaultParameters();
73 fGeom = AliPHOSGeometry::GetInstance("IHEP","");
76 //____________________________________________________________________________
77 AliPHOSReconstructor::~AliPHOSReconstructor()
83 //____________________________________________________________________________
84 void AliPHOSReconstructor::Reconstruct(TTree* digitsTree, TTree* clustersTree) const
86 // 'single-event' local reco 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 AliESDEvent object to retrieve the tracks reconstructed by
89 // the global tracking.
91 AliPHOSClusterizerv1 clu(fGeom);
92 clu.SetInput(digitsTree);
93 clu.SetOutput(clustersTree);
95 clu.Digits2Clusters("deb all") ;
97 clu.Digits2Clusters("") ;
100 //____________________________________________________________________________
101 void AliPHOSReconstructor::FillESD(TTree* digitsTree, TTree* clustersTree,
102 AliESDEvent* esd) const
104 // This method produces PHOS rec-particles,
105 // then it creates AliESDtracks out of them and
106 // write tracks to the ESD
108 AliPHOSTrackSegmentMaker *tsm = new AliPHOSTrackSegmentMakerv1(fGeom);
109 tsm->GetQualAssDataMaker()->Init(AliQualAss::kTRACKSEGMENTS) ;
110 AliPHOSPID *pid = new AliPHOSPIDv1(fGeom);
111 pid->GetQualAssDataMaker()->Init(AliQualAss::kRECPARTICLES) ;
113 // do current event; the loop over events is done by AliReconstruction::Run()
115 tsm->SetInput(clustersTree);
117 tsm->Clusters2TrackSegments("deb all") ;
119 tsm->Clusters2TrackSegments("") ;
121 tsm->GetQualAssDataMaker()->SetData(tsm->GetTrackSegments()) ;
122 tsm->GetQualAssDataMaker()->Exec(AliQualAss::kTRACKSEGMENTS) ;
124 pid->SetInput(clustersTree, tsm->GetTrackSegments()) ;
127 pid->TrackSegments2RecParticles("deb all") ;
129 pid->TrackSegments2RecParticles("") ;
131 pid->GetQualAssDataMaker()->SetData(pid->GetRecParticles()) ;
132 pid->GetQualAssDataMaker()->Exec(AliQualAss::kRECPARTICLES) ;
134 // PLEASE FIX IT. SHOULD GO TO ALIRECONSTRUCTION !!
135 // if ( eventNumber == gime->MaxEvent()-1 ) {
136 // fTSM->GetQualAssDataMaker()->Finish(AliQualAss::kTRACKSEGMENTS) ;
137 // fPID->GetQualAssDataMaker()->Finish(AliQualAss::kRECPARTICLES) ;
140 // This function creates AliESDtracks from AliPHOSRecParticles
142 // writes them to the ESD
144 TClonesArray *recParticles = pid->GetRecParticles();
145 Int_t nOfRecParticles = recParticles->GetEntries();
148 esd->SetNumberOfPHOSClusters(nOfRecParticles) ;
149 esd->SetFirstPHOSCluster(esd->GetNumberOfCaloClusters()) ;
151 AliDebug(2,Form("%d rec. particles, option %s",nOfRecParticles,GetOption()));
154 //#########Calculate trigger and set trigger info###########
157 // tr.SetPatchSize(1);//create 4x4 patches
160 Float_t maxAmp2x2 = tr.Get2x2MaxAmplitude();
161 Float_t maxAmpnxn = tr.GetnxnMaxAmplitude();
162 Float_t ampOutOfPatch2x2 = tr.Get2x2AmpOutOfPatch() ;
163 Float_t ampOutOfPatchnxn = tr.GetnxnAmpOutOfPatch() ;
165 Int_t iSM2x2 = tr.Get2x2SuperModule();
166 Int_t iSMnxn = tr.GetnxnSuperModule();
167 Int_t iCrystalPhi2x2 = tr.Get2x2CrystalPhi();
168 Int_t iCrystalPhinxn = tr.GetnxnCrystalPhi();
169 Int_t iCrystalEta2x2 = tr.Get2x2CrystalEta();
170 Int_t iCrystalEtanxn = tr.GetnxnCrystalEta();
172 AliDebug(2, Form("Trigger 2x2 max amp %f, out amp %f, SM %d, iphi %d ieta %d", maxAmp2x2, ampOutOfPatch2x2, iSM2x2,iCrystalPhi2x2, iCrystalEta2x2));
173 AliDebug(2, Form("Trigger 4x4 max amp %f , out amp %f, SM %d, iphi %d, ieta %d", maxAmpnxn, ampOutOfPatchnxn, iSMnxn,iCrystalPhinxn, iCrystalEtanxn));
175 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.
177 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.
179 TVector3 pos2x2(-1,-1,-1);
180 TVector3 posnxn(-1,-1,-1);
181 fGeom->RelToAbsNumbering(iRelId2x2, iAbsId2x2);
182 fGeom->RelToAbsNumbering(iRelIdnxn, iAbsIdnxn);
183 fGeom->RelPosInAlice(iAbsId2x2, pos2x2);
184 fGeom->RelPosInAlice(iAbsIdnxn, posnxn);
186 TArrayF triggerPosition(6);
187 triggerPosition[0] = pos2x2(0) ;
188 triggerPosition[1] = pos2x2(1) ;
189 triggerPosition[2] = pos2x2(2) ;
190 triggerPosition[3] = posnxn(0) ;
191 triggerPosition[4] = posnxn(1) ;
192 triggerPosition[5] = posnxn(2) ;
194 TArrayF triggerAmplitudes(4);
195 triggerAmplitudes[0] = maxAmp2x2 ;
196 triggerAmplitudes[1] = ampOutOfPatch2x2 ;
197 triggerAmplitudes[2] = maxAmpnxn ;
198 triggerAmplitudes[3] = ampOutOfPatchnxn ;
200 //esd->SetPHOSTriggerCells(triggerPosition);
201 esd->AddPHOSTriggerPosition(triggerPosition);
202 esd->AddPHOSTriggerAmplitudes(triggerAmplitudes);
204 //######################################
207 const Float_t kBigShort = std::numeric_limits<short int>::max() - 1;
208 const Float_t nsec100 = 1e9*100.; // units of 0.01 ns
209 const Float_t gev500 = 500.; // units of GeV/500
211 for (Int_t recpart = 0 ; recpart < nOfRecParticles ; recpart++) {
212 AliPHOSRecParticle * rp = dynamic_cast<AliPHOSRecParticle*>(recParticles->At(recpart));
215 // Get track segment and EMC rec.point associated with this rec.particle
216 AliPHOSTrackSegment *ts = static_cast<AliPHOSTrackSegment *>(tsm->GetTrackSegments()->At(rp->GetPHOSTSIndex()));
218 // Get the clusters array
219 TBranch *emcbranch = clustersTree->GetBranch("PHOSEmcRP");
221 AliError("can't get the branch with the PHOS EMC clusters !");
224 TObjArray *emcRecPoints = new TObjArray(100) ;
225 emcbranch->SetAddress(&emcRecPoints);
226 emcbranch->GetEntry(0);
228 AliPHOSEmcRecPoint *emcRP = static_cast<AliPHOSEmcRecPoint *>(emcRecPoints->At(ts->GetEmcIndex()));
229 AliESDCaloCluster *ec = new AliESDCaloCluster() ;
232 for (Int_t ixyz=0; ixyz<3; ixyz++)
233 xyz[ixyz] = rp->GetPos()[ixyz];
235 AliDebug(2,Form("Global position xyz=(%f,%f,%f)",xyz[0],xyz[1],xyz[2]));
237 //Create digits lists
238 Int_t digitMult = emcRP->GetDigitsMultiplicity();
239 Int_t *digitsList = emcRP->GetDigitsList();
240 Short_t *amplList = new Short_t[digitMult];
241 Short_t *timeList = new Short_t[digitMult];
242 Short_t *digiList = new Short_t[digitMult];
245 TBranch *branch = digitsTree->GetBranch("PHOS");
247 AliError("can't get the branch with the PHOS digits !");
250 TClonesArray *digitsArr = new TClonesArray("AliPHOSDigit",100);
251 branch->SetAddress(&digitsArr);
254 // Convert Float_t* and Int_t* to Short_t* to save memory
255 for (Int_t iDigit=0; iDigit<digitMult; iDigit++) {
256 AliPHOSDigit *digit = static_cast<AliPHOSDigit *>(digitsArr->At(digitsList[iDigit]));
258 (Short_t)(TMath::Min(digit->GetEnergy()*gev500,kBigShort)); // Energy in units of GeV/500
260 (Short_t)(TMath::Min(digit->GetTime()*nsec100,kBigShort)); // time in units of 0.01 ns
261 digiList[iDigit] = (Short_t)(digit->GetId());
266 Int_t *primInts = emcRP->GetPrimaries(primMult);
267 Short_t *primList = new Short_t[primMult];
268 for (Int_t ipr=0; ipr<primMult; ipr++)
269 primList[ipr] = (Short_t)(primInts[ipr]);
271 // fills the ESDCaloCluster
274 ec->SetPosition(xyz); //rec.point position in MARS
275 ec->SetE(rp->Energy()); //total particle energy
276 ec->SetClusterDisp(emcRP->GetDispersion()); //cluster dispersion
277 ec->SetPid (rp->GetPID()) ; //array of particle identification
278 ec->SetM02(emcRP->GetM2x()) ; //second moment M2x
279 ec->SetM20(emcRP->GetM2z()) ; //second moment M2z
280 ec->SetNExMax(emcRP->GetNExMax()); //number of local maxima
281 ec->SetEmcCpvDistance(-1); //not yet implemented
282 ec->SetClusterChi2(-1); //not yet implemented
283 ec->SetM11(-1) ; //not yet implemented
286 TArrayS arrayAmpList(digitMult,amplList);
287 TArrayS arrayTimeList(digitMult,timeList);
288 TArrayS arrayIndexList(digitMult,digiList);
289 ec->AddDigitAmplitude(arrayAmpList);
290 ec->AddDigitTime(arrayTimeList);
291 ec->AddDigitIndex(arrayIndexList);
293 //Distance to the nearest bad crystal
294 ec->SetDistanceToBadChannel(emcRP->GetDistanceToBadCrystal());
296 //Array of MC indeces
297 TArrayS arrayPrim(primMult,primList);
298 ec->AddLabels(arrayPrim);
300 //Array of tracks uncomment when available in future
301 //TArrayS arrayTrackMatched(1);// Only one track, temporal solution.
302 //arrayTrackMatched[0]= (Short_t)(matchedTrack[iClust]);
303 //ec->AddTracksMatched(arrayTrackMatched);
305 // add the track to the esd object
306 esd->AddCaloCluster(ec);
315 AliTracker* AliPHOSReconstructor::CreateTracker(AliRunLoader* /* runLoader */) const
317 // creates the PHOS tracker
318 return new AliPHOSTracker();
321 void AliPHOSReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
323 // Converts raw data to
325 // Works on a single-event basis
329 AliPHOSRawDecoder dc(rawReader);
330 TString option = GetOption();
331 if (option.Contains("OldRCUFormat"))
332 dc.SetOldRCUFormat(kTRUE);
334 dc.SetOldRCUFormat(kFALSE);
336 dc.SubtractPedestals(kTRUE);
338 TClonesArray *digits = new TClonesArray("AliPHOSDigit",1);
339 digits->SetName("DIGITS");
340 Int_t bufsize = 32000;
341 digitsTree->Branch("PHOS", &digits, bufsize);
343 AliPHOSRawDigiProducer pr;
344 pr.MakeDigits(digits,&dc);
347 for(Int_t i=0; i<digits->GetEntries(); i++) {
348 AliPHOSDigit* digit = (AliPHOSDigit*)digits->At(i);
349 digit->SetEnergy(digit->GetEnergy()/AliPHOSPulseGenerator::GeV2ADC());
360 for(Int_t iDigit=0; iDigit<digits->GetEntries(); iDigit++) {
361 AliPHOSDigit* digit = (AliPHOSDigit*)digits->At(iDigit);
362 if(digit->GetEnergy()>eMax) {
363 fGeom->AbsToRelNumbering(digit->GetId(),relId);
364 eMax=digit->GetEnergy();
371 AliDebug(1,Form("Digit with max. energy: modMax %d colMax %d rowMax %d eMax %f\n\n",
372 modMax,colMax,rowMax,eMax));