1 #include "AliFemtoEventReaderESDChain.h"
6 #include "AliESDtrack.h"
8 #include "Infrastructure/AliFmPhysicalHelixD.h"
9 #include "Infrastructure/AliFmThreeVectorF.h"
11 #include "Base/SystemOfUnits.h"
13 #include "Infrastructure/AliFemtoEvent.h"
15 ClassImp(AliFemtoEventReaderESDChain)
17 #if !(ST_NO_NAMESPACES)
18 using namespace units;
22 //____________________________
23 //constructor with 0 parameters , look at default settings
24 AliFemtoEventReaderESDChain::AliFemtoEventReaderESDChain():
33 fClusterPerPadrow(0x0)
35 fClusterPerPadrow = (list<Int_t> **) malloc(sizeof(list<Int_t> *) * AliESDfriendTrack::kMaxTPCcluster);
36 for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
37 fClusterPerPadrow[tPad] = new list<Int_t>();
39 fSharedList = (list<Int_t> **) malloc(sizeof(list<Int_t> *) * AliESDfriendTrack::kMaxTPCcluster);
40 for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
41 fSharedList[tPad] = new list<Int_t>();
47 AliFemtoEventReaderESDChain::AliFemtoEventReaderESDChain(const AliFemtoEventReaderESDChain& aReader):
56 fClusterPerPadrow(0x0)
58 fConstrained = aReader.fConstrained;
59 fNumberofEvent = aReader.fNumberofEvent;
60 fCurEvent = aReader.fCurEvent;
61 fCurFile = aReader.fCurFile;
62 fEvent = new AliESD(*aReader.fEvent);
63 fEventFriend = aReader.fEventFriend;
64 fClusterPerPadrow = (list<Int_t> **) malloc(sizeof(list<Int_t> *) * AliESDfriendTrack::kMaxTPCcluster);
65 for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
66 fClusterPerPadrow[tPad] = new list<Int_t>();
67 list<Int_t>::iterator iter;
68 for (iter=aReader.fClusterPerPadrow[tPad]->begin(); iter!=aReader.fClusterPerPadrow[tPad]->end(); iter++) {
69 fClusterPerPadrow[tPad]->push_back(*iter);
72 fSharedList = (list<Int_t> **) malloc(sizeof(list<Int_t> *) * AliESDfriendTrack::kMaxTPCcluster);
73 for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
74 fSharedList[tPad] = new list<Int_t>();
75 list<Int_t>::iterator iter;
76 for (iter=aReader.fSharedList[tPad]->begin(); iter!=aReader.fSharedList[tPad]->end(); iter++) {
77 fSharedList[tPad]->push_back(*iter);
83 AliFemtoEventReaderESDChain::~AliFemtoEventReaderESDChain()
87 for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
88 fClusterPerPadrow[tPad]->clear();
89 delete fClusterPerPadrow[tPad];
91 delete [] fClusterPerPadrow;
92 for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
93 fSharedList[tPad]->clear();
94 delete fSharedList[tPad];
96 delete [] fSharedList;
100 // Assignment operator
101 AliFemtoEventReaderESDChain& AliFemtoEventReaderESDChain::operator=(const AliFemtoEventReaderESDChain& aReader)
103 if (this == &aReader)
106 fConstrained = aReader.fConstrained;
107 fNumberofEvent = aReader.fNumberofEvent;
108 fCurEvent = aReader.fCurEvent;
109 fCurFile = aReader.fCurFile;
110 if (fEvent) delete fEvent;
111 fEvent = new AliESD(*aReader.fEvent);
113 fEventFriend = aReader.fEventFriend;
115 if (fClusterPerPadrow) {
116 for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
117 fClusterPerPadrow[tPad]->clear();
118 delete fClusterPerPadrow[tPad];
120 delete [] fClusterPerPadrow;
124 for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
125 fSharedList[tPad]->clear();
126 delete fSharedList[tPad];
128 delete [] fSharedList;
131 fClusterPerPadrow = (list<Int_t> **) malloc(sizeof(list<Int_t> *) * AliESDfriendTrack::kMaxTPCcluster);
132 for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
133 fClusterPerPadrow[tPad] = new list<Int_t>();
134 list<Int_t>::iterator iter;
135 for (iter=aReader.fClusterPerPadrow[tPad]->begin(); iter!=aReader.fClusterPerPadrow[tPad]->end(); iter++) {
136 fClusterPerPadrow[tPad]->push_back(*iter);
139 fSharedList = (list<Int_t> **) malloc(sizeof(list<Int_t> *) * AliESDfriendTrack::kMaxTPCcluster);
140 for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
141 fSharedList[tPad] = new list<Int_t>();
142 list<Int_t>::iterator iter;
143 for (iter=aReader.fSharedList[tPad]->begin(); iter!=aReader.fSharedList[tPad]->end(); iter++) {
144 fSharedList[tPad]->push_back(*iter);
152 AliFemtoString AliFemtoEventReaderESDChain::Report()
154 AliFemtoString temp = "\n This is the AliFemtoEventReaderESDChain\n";
159 // Select whether to read constrained or not constrained momentum
160 void AliFemtoEventReaderESDChain::SetConstrained(const bool constrained)
162 fConstrained=constrained;
165 // Check whether we read constrained or not constrained momentum
166 bool AliFemtoEventReaderESDChain::GetConstrained() const
171 AliFemtoEvent* AliFemtoEventReaderESDChain::ReturnHbtEvent()
173 // Get the event, read all the relevant information
174 // and fill the AliFemtoEvent class
175 // Returns a valid AliFemtoEvent
176 AliFemtoEvent *hbtEvent = 0;
177 string tFriendFileName;
179 // Get the friend information
180 cout<<"starting to read event "<<fCurEvent<<endl;
181 fEvent->SetESDfriend(fEventFriend);
182 vector<int> label_table;//to check labels
184 hbtEvent = new AliFemtoEvent;
185 //setting basic things
186 // hbtEvent->SetEventNumber(fEvent->GetEventNumber());
187 hbtEvent->SetRunNumber(fEvent->GetRunNumber());
188 //hbtEvent->SetNumberOfTracks(fEvent->GetNumberOfTracks());
189 hbtEvent->SetMagneticField(fEvent->GetMagneticField()*kilogauss);//to check if here is ok
190 hbtEvent->SetZDCN1Energy(fEvent->GetZDCN1Energy());
191 hbtEvent->SetZDCP1Energy(fEvent->GetZDCP1Energy());
192 hbtEvent->SetZDCN2Energy(fEvent->GetZDCN2Energy());
193 hbtEvent->SetZDCP2Energy(fEvent->GetZDCP2Energy());
194 hbtEvent->SetZDCEMEnergy(fEvent->GetZDCEMEnergy());
195 hbtEvent->SetZDCParticipants(fEvent->GetZDCParticipants());
196 hbtEvent->SetTriggerMask(fEvent->GetTriggerMask());
197 hbtEvent->SetTriggerCluster(fEvent->GetTriggerCluster());
201 fEvent->GetVertex()->GetXYZ(fV1);
203 AliFmThreeVectorF vertex(fV1[0],fV1[1],fV1[2]);
204 hbtEvent->SetPrimVertPos(vertex);
206 //starting to reading tracks
207 int nofTracks=0; //number of reconstructed tracks in event
208 nofTracks=fEvent->GetNumberOfTracks();
209 int realnofTracks=0;//number of track which we use ina analysis
211 // Clear the shared cluster list
212 for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
213 fClusterPerPadrow[tPad]->clear();
215 for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
216 fSharedList[tPad]->clear();
220 for (int i=0;i<nofTracks;i++) {
221 const AliESDtrack *esdtrack=fEvent->GetTrack(i);//getting next track
223 list<Int_t>::iterator tClustIter;
225 Int_t tTrackIndices[AliESDfriendTrack::kMaxTPCcluster];
226 Int_t tNClusters = esdtrack->GetTPCclusters(tTrackIndices);
227 for (int tNcl=0; tNcl<AliESDfriendTrack::kMaxTPCcluster; tNcl++) {
228 if (tTrackIndices[tNcl] >= 0) {
229 tClustIter = find(fClusterPerPadrow[tNcl]->begin(), fClusterPerPadrow[tNcl]->end(), tTrackIndices[tNcl]);
230 if (tClustIter == fClusterPerPadrow[tNcl]->end()) {
231 fClusterPerPadrow[tNcl]->push_back(tTrackIndices[tNcl]);
234 fSharedList[tNcl]->push_back(tTrackIndices[tNcl]);
241 for (int i=0;i<nofTracks;i++)
243 bool good_momentum=true; //flaga to chcek if we can read momentum of this track
245 AliFemtoTrack* trackCopy = new AliFemtoTrack();
246 const AliESDtrack *esdtrack=fEvent->GetTrack(i);//getting next track
247 // const AliESDfriendTrack *tESDfriendTrack = esdtrack->GetFriendTrack();
249 trackCopy->SetCharge((short)esdtrack->GetSign());
251 //in aliroot we have AliPID
252 //0-electron 1-muon 2-pion 3-kaon 4-proton 5-photon 6-pi0 7-neutron 8-kaon0 9-eleCon
253 //we use only 5 first
255 esdtrack->GetESDpid(esdpid);
256 trackCopy->SetPidProbElectron(esdpid[0]);
257 trackCopy->SetPidProbMuon(esdpid[1]);
258 trackCopy->SetPidProbPion(esdpid[2]);
259 trackCopy->SetPidProbKaon(esdpid[3]);
260 trackCopy->SetPidProbProton(esdpid[4]);
263 if (fConstrained==true)
264 good_momentum=esdtrack->GetConstrainedPxPyPz(pxyz); //reading constrained momentum
266 good_momentum=esdtrack->GetPxPyPz(pxyz);//reading noconstarined momentum
268 AliFemtoThreeVector v(pxyz[0],pxyz[1],pxyz[2]);
270 // cout << "Found 0 momentum ???? " <<endl;
274 trackCopy->SetP(v);//setting momentum
275 trackCopy->SetPt(sqrt(pxyz[0]*pxyz[0]+pxyz[1]*pxyz[1]));
276 const AliFmThreeVectorD p(pxyz[0],pxyz[1],pxyz[2]);
277 const AliFmThreeVectorD origin(fV1[0],fV1[1],fV1[2]);
278 //setting helix I do not if it is ok
279 AliFmPhysicalHelixD helix(p,origin,(double)(fEvent->GetMagneticField())*kilogauss,(double)(trackCopy->Charge()));
280 trackCopy->SetHelix(helix);
282 trackCopy->SetTrackId(esdtrack->GetID());
283 trackCopy->SetFlags(esdtrack->GetStatus());
284 //trackCopy->SetLabel(esdtrack->GetLabel());
286 //some stuff which could be useful
289 esdtrack->GetImpactParameters(impact,covimpact);
290 trackCopy->SetImpactD(impact[0]);
291 trackCopy->SetImpactZ(impact[1]);
292 trackCopy->SetCdd(covimpact[0]);
293 trackCopy->SetCdz(covimpact[1]);
294 trackCopy->SetCzz(covimpact[2]);
295 trackCopy->SetITSchi2(esdtrack->GetITSchi2());
296 trackCopy->SetITSncls(esdtrack->GetNcls(0));
297 trackCopy->SetTPCchi2(esdtrack->GetTPCchi2());
298 trackCopy->SetTPCncls(esdtrack->GetTPCNcls());
299 trackCopy->SetTPCnclsF(esdtrack->GetTPCNclsF());
300 trackCopy->SetTPCsignalN((short)esdtrack->GetTPCsignalN()); //due to bug in aliesdtrack class
301 trackCopy->SetTPCsignalS(esdtrack->GetTPCsignalSigma());
303 // Fill cluster per padrow information
304 Int_t tTrackIndices[AliESDfriendTrack::kMaxTPCcluster];
305 Int_t tNClusters = esdtrack->GetTPCclusters(tTrackIndices);
306 for (int tNcl=0; tNcl<AliESDfriendTrack::kMaxTPCcluster; tNcl++) {
307 if (tTrackIndices[tNcl] > 0)
308 trackCopy->SetTPCcluster(tNcl, 1);
310 trackCopy->SetTPCcluster(tNcl, 0);
313 // Fill shared cluster information
314 list<Int_t>::iterator tClustIter;
316 for (int tNcl=0; tNcl<AliESDfriendTrack::kMaxTPCcluster; tNcl++) {
317 if (tTrackIndices[tNcl] > 0) {
318 tClustIter = find(fSharedList[tNcl]->begin(), fSharedList[tNcl]->end(), tTrackIndices[tNcl]);
319 if (tClustIter != fSharedList[tNcl]->end()) {
320 trackCopy->SetTPCshared(tNcl, 1);
321 cout << "Event next" << endl;
322 cout << "Track: " << i << endl;
323 cout << "Shared cluster: " << tNcl << " " << tTrackIndices[tNcl] << endl;
326 trackCopy->SetTPCshared(tNcl, 0);
331 if (good_momentum==true)
333 hbtEvent->TrackCollection()->push_back(trackCopy);//adding track to analysis
334 realnofTracks++;//real number of tracks
344 hbtEvent->SetNumberOfTracks(realnofTracks);//setting number of track which we read in event
346 cout<<"end of reading nt "<<nofTracks<<" real number "<<realnofTracks<<endl;
349 //___________________
350 // The chain loads the ESD for us
351 // You must provide the address where it can be found
352 void AliFemtoEventReaderESDChain::SetESDSource(AliESD *aESD)
356 //___________________
357 // We need the ESD tree to obtain
358 // information about the friend file location
359 void AliFemtoEventReaderESDChain::SetESDfriendSource(AliESDfriend *aFriend)
361 fEventFriend = aFriend;