Removed Track Segments and replaced by RecPoints
[u/mrichter/AliRoot.git] / EMCAL / AliEMCALPIDv1.cxx
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c9b2f104 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// Implementation version v1 of the EMCAL particle identifier
20
21//*-- Author: Yves Schutz (SUBATECH)
22//
23// --- ROOT system ---
d64c959b 24//#include "TROOT.h"
c9b2f104 25#include "TTree.h"
c9b2f104 26#include "TBenchmark.h"
c9b2f104 27#include "TSystem.h"
88cb7938 28
29 // --- Standard library ---
30
31 // --- AliRoot header files ---
c9b2f104 32#include "AliEMCALPIDv1.h"
c9b2f104 33#include "AliEMCALTrackSegment.h"
c9b2f104 34#include "AliEMCALRecParticle.h"
c9b2f104 35#include "AliEMCALGetter.h"
88cb7938 36
37 ClassImp( AliEMCALPIDv1)
c9b2f104 38
39//____________________________________________________________________________
40AliEMCALPIDv1::AliEMCALPIDv1():AliEMCALPID()
41{
42 // default ctor
88cb7938 43
c9b2f104 44 InitParameters() ;
45 fDefaultInit = kTRUE ;
88cb7938 46
47}
c9b2f104 48
88cb7938 49//____________________________________________________________________________
50AliEMCALPIDv1::AliEMCALPIDv1(const AliEMCALPIDv1 & pid ):AliEMCALPID(pid)
51{
52 // ctor
53 InitParameters() ;
54 Init() ;
55
c9b2f104 56}
57
58//____________________________________________________________________________
88cb7938 59AliEMCALPIDv1::AliEMCALPIDv1(const TString alirunFileName, const TString eventFolderName):AliEMCALPID(alirunFileName, eventFolderName)
c9b2f104 60{
61 //ctor with the indication on where to look for the track segments
62
63 InitParameters() ;
c9b2f104 64 Init() ;
65 fDefaultInit = kFALSE ;
66
67}
68
69//____________________________________________________________________________
70AliEMCALPIDv1::~AliEMCALPIDv1()
71{
72 // dtor
c9b2f104 73}
74
75//____________________________________________________________________________
76const TString AliEMCALPIDv1::BranchName() const
77{
88cb7938 78
79 return GetName() ;
c9b2f104 80}
81
82//____________________________________________________________________________
83void AliEMCALPIDv1::Init()
84{
85 // Make all memory allocations that are not possible in default constructor
86 // Add the PID task to the list of EMCAL tasks
87
c9b2f104 88
88cb7938 89 AliEMCALGetter * gime = AliEMCALGetter::Instance(GetTitle(), fEventFolderName.Data()) ;
c9b2f104 90
88cb7938 91 if ( !gime->PID() )
92 gime->PostPID(this) ;
c9b2f104 93}
94
95//____________________________________________________________________________
96void AliEMCALPIDv1::InitParameters()
97{
d64c959b 98 // Initialize the parameters
c9b2f104 99 fRecParticlesInRun = 0 ;
100 fNEvent = 0 ;
101 fRecParticlesInRun = 0 ;
c9b2f104 102}
103
104//____________________________________________________________________________
105
106void AliEMCALPIDv1::Exec(Option_t * option)
107{
108 //Steering method
88cb7938 109
c9b2f104 110 if(strstr(option,"tim"))
111 gBenchmark->Start("EMCALPID");
112
113 if(strstr(option,"print")) {
114 Print("") ;
115 return ;
116 }
88cb7938 117 AliEMCALGetter * gime = AliEMCALGetter::Instance() ;
118
7b8d3392 119 if (fLastEvent == -1)
120 fLastEvent = gime->MaxEvent() - 1 ;
121 else
122 fLastEvent = TMath::Min(fLastEvent,gime->MaxEvent());
123 Int_t nEvents = fLastEvent - fFirstEvent + 1;
124
c9b2f104 125 Int_t ievent ;
126
127
7b8d3392 128 for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) {
88cb7938 129 gime->Event(ievent,"TR") ;
130 if(gime->TrackSegments() && //Skip events, where no track segments made
131 gime->TrackSegments()->GetEntriesFast()) {
132 MakeRecParticles() ;
9e5d2067 133 WriteRecParticles();
88cb7938 134 if(strstr(option,"deb"))
135 PrintRecParticles(option) ;
136 //increment the total number of rec particles per run
137 fRecParticlesInRun += gime->RecParticles()->GetEntriesFast() ;
138 }
c9b2f104 139 }
c9b2f104 140 if(strstr(option,"tim")){
141 gBenchmark->Stop("EMCALPID");
fdebddeb 142 printf("Exec: took %f seconds for PID %f seconds per event",
c9b2f104 143 gBenchmark->GetCpuTime("EMCALPID"),
7b8d3392 144 gBenchmark->GetCpuTime("EMCALPID")/nEvents) ;
c9b2f104 145 }
88cb7938 146
147 Unload();
c9b2f104 148}
149
150//____________________________________________________________________________
151void AliEMCALPIDv1::MakeRecParticles(){
152
153 // Makes a RecParticle out of a TrackSegment
154
88cb7938 155 AliEMCALGetter * gime = AliEMCALGetter::Instance() ;
156 TObjArray * aECARecPoints = gime->ECARecPoints() ;
c9b2f104 157 TClonesArray * trackSegments = gime->TrackSegments() ;
fdebddeb 158 if ( !aECARecPoints || !trackSegments ) {
c9b2f104 159 Fatal("MakeRecParticles", "RecPoints or TrackSegments not found !") ;
160 }
161 TClonesArray * recParticles = gime->RecParticles() ;
162 recParticles->Clear();
163
164 TIter next(trackSegments) ;
165 AliEMCALTrackSegment * ts ;
166 Int_t index = 0 ;
167 AliEMCALRecParticle * rp ;
168 while ( (ts = (AliEMCALTrackSegment *)next()) ) {
169
170 new( (*recParticles)[index] ) AliEMCALRecParticle() ;
171 rp = (AliEMCALRecParticle *)recParticles->At(index) ;
172 rp->SetTrackSegment(index) ;
173 rp->SetIndexInList(index) ;
174
88cb7938 175 AliEMCALTowerRecPoint * eca = 0 ;
176 if(ts->GetECAIndex()>=0)
177 eca = dynamic_cast<AliEMCALTowerRecPoint *>(aECARecPoints->At(ts->GetECAIndex())) ;
c9b2f104 178
179 // Now set type (reconstructed) of the particle
180
181 // Choose the cluster energy range
182
88cb7938 183 if (!eca) {
184 Fatal("MakeRecParticles", "-> emcal(%d) = %d", ts->GetECAIndex(), eca ) ;
c9b2f104 185 }
186
88cb7938 187 Float_t e = eca->GetEnergy() ;
c9b2f104 188
189 Float_t lambda[2] ;
88cb7938 190 eca->GetElipsAxis(lambda) ;
c9b2f104 191
192 if((lambda[0]>0.01) && (lambda[1]>0.01)){
193 // Looking PCA. Define and calculate the data (X),
194 // introduce in the function X2P that gives the components (P).
195
d64c959b 196 Float_t spher = 0. ;
197 Float_t emaxdtotal = 0. ;
c9b2f104 198
199 if((lambda[0]+lambda[1])!=0)
d64c959b 200 spher=fabs(lambda[0]-lambda[1])/(lambda[0]+lambda[1]);
c9b2f104 201
d64c959b 202 emaxdtotal=eca->GetMaximalEnergy()/eca->GetEnergy();
c9b2f104 203 }
204
205 // Float_t time = ecal->GetTime() ;
206
207 //Set momentum, energy and other parameters
88cb7938 208 Float_t enca = e;
c9b2f104 209 TVector3 dir(0., 0., 0.) ;
88cb7938 210 dir.SetMag(enca) ;
211 rp->SetMomentum(dir.X(),dir.Y(),dir.Z(),enca) ;
c9b2f104 212 rp->SetCalcMass(0);
213 rp->Name(); //If photon sets the particle pdg name to gamma
214 rp->SetProductionVertex(0,0,0,0);
215 rp->SetFirstMother(-1);
216 rp->SetLastMother(-1);
217 rp->SetFirstDaughter(-1);
218 rp->SetLastDaughter(-1);
219 rp->SetPolarisation(0,0,0);
220 index++ ;
221 }
222
223}
224
225//____________________________________________________________________________
9e5d2067 226void AliEMCALPIDv1:: Print(Option_t * /*option*/) const
c9b2f104 227{
228 // Print the parameters used for the particle type identification
229
fdebddeb 230 printf("Print: =============== AliEMCALPID1 ================") ;
88cb7938 231 printf("Making PID\n");
232 printf(" Pricipal analysis file from 0.5 to 100 %s\n", fFileName.Data() ) ;
233 printf(" Name of parameters file %s\n", fFileNamePar.Data() ) ;
c9b2f104 234}
235
236//____________________________________________________________________________
7b8d3392 237void AliEMCALPIDv1::Print() const
238{
239 // Print the parameters used for the particle type identification
240
241 Info("Print", "=============== AliEMCALPIDv1 ================") ;
242}
243
244//____________________________________________________________________________
c9b2f104 245void AliEMCALPIDv1::PrintRecParticles(Option_t * option)
246{
247 // Print table of reconstructed particles
248
88cb7938 249 AliEMCALGetter *gime = AliEMCALGetter::Instance() ;
c9b2f104 250
88cb7938 251 TClonesArray * recParticles = gime->RecParticles() ;
c9b2f104 252
fdebddeb 253 printf("\nevent %i", gAlice->GetEvNumber());
254 printf(" found %i", recParticles->GetEntriesFast());
255 printf(" RecParticles\n");
c9b2f104 256
257 if(strstr(option,"all")) { // printing found TS
fdebddeb 258 printf("\n PARTICLE Index \n");
c9b2f104 259
260 Int_t index ;
261 for (index = 0 ; index < recParticles->GetEntries() ; index++) {
262 AliEMCALRecParticle * rp = (AliEMCALRecParticle * ) recParticles->At(index) ;
fdebddeb 263 printf("\n");
264 printf(rp->Name().Data());
265 printf(" %i", rp->GetIndexInList());
266 printf(" %i", rp->GetType());
c9b2f104 267 }
268 }
c9b2f104 269}
270
88cb7938 271//____________________________________________________________________________
272void AliEMCALPIDv1::Unload()
273{
d64c959b 274 // Unloads RecPoints, TrackSegments and RecParticles from the folder
88cb7938 275 AliEMCALGetter * gime = AliEMCALGetter::Instance() ;
276 gime->EmcalLoader()->UnloadRecPoints() ;
277 gime->EmcalLoader()->UnloadTracks() ;
278 gime->EmcalLoader()->UnloadRecParticles() ;
279}
280
281//____________________________________________________________________________
9e5d2067 282void AliEMCALPIDv1::WriteRecParticles()
88cb7938 283{
d64c959b 284 // Write RecParticles array to file
88cb7938 285 AliEMCALGetter *gime = AliEMCALGetter::Instance() ;
286
287 TClonesArray * recParticles = gime->RecParticles() ;
288 recParticles->Expand(recParticles->GetEntriesFast() ) ;
289 TTree * treeP = gime->TreeP() ;
c9b2f104 290
88cb7938 291
292
293 //First rp
294 Int_t bufferSize = 32000 ;
295 TBranch * rpBranch = treeP->Branch("EMCALRP",&recParticles,bufferSize);
296 rpBranch->SetTitle(BranchName());
297
298 rpBranch->Fill() ;
299
300 gime->WriteRecParticles("OVERWRITE");
301 gime->WritePID("OVERWRITE");
302
303}
c9b2f104 304