[u/mrichter/AliRoot.git] / PWG2 / FEMTOSCOPY / AliFemto / Reader / AliFemtoEventReaderESD.cxx

/*
 *$Id$
 *$Log$
 *Revision 1.5  2007-04-03 16:00:08  mchojnacki
 *Changes to iprove memory managing
 *
 *Revision 1.4  2007/03/13 15:30:03  mchojnacki
 *adding reader for simulated data
 *
 *Revision 1.3  2007/03/08 14:58:03  mchojnacki
 *adding some alice stuff
 *
 *Revision 1.2  2007/03/07 13:36:16  mchojnacki
 *Add some comments
 *
 *Revision 1.1.1.1  2007/03/07 10:14:49  mchojnacki
 *First version on CVS
 *
 */

#include "AliFemtoEventReaderESD.h"

#include "TFile.h"
#include "TTree.h"
#include "AliESD.h"
#include "AliESDtrack.h"

//#include "TSystem.h"

#include "AliFmPhysicalHelixD.h"
#include "AliFmThreeVectorF.h"

#include "SystemOfUnits.h"

#include "AliFemtoEvent.h"

ClassImp(AliFemtoEventReaderESD)

#if !(ST_NO_NAMESPACES)
  using namespace units;
#endif

using namespace std;
//____________________________
//constructor with 0 parameters , look at default settings 
AliFemtoEventReaderESD::AliFemtoEventReaderESD():
  fInputFile(" "),
  fFileName(" "),
  fConstrained(true),
  fNumberofEvent(0),
  fCurEvent(0),
  fCurFile(0),
  fTree(0x0),
  fEvent(0x0),
  fEsdFile(0x0),
  fEventFriend(0)
{
  fClusterPerPadrow = (list<Int_t> **) malloc(sizeof(list<Int_t> *) * AliESDfriendTrack::kMaxTPCcluster);
  for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
    fClusterPerPadrow[tPad] = new list<Int_t>();
  }
  fSharedList = (list<Int_t> **) malloc(sizeof(list<Int_t> *) * AliESDfriendTrack::kMaxTPCcluster);
  for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
    fSharedList[tPad] = new list<Int_t>();
  }
}

//__________________
//Destructor
AliFemtoEventReaderESD::~AliFemtoEventReaderESD()
{
  //delete fListOfFiles;
  delete fTree;
  delete fEvent;
  delete fEsdFile;

  for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
    fClusterPerPadrow[tPad]->clear();
    delete fClusterPerPadrow[tPad];
  }
  delete [] fClusterPerPadrow;
  for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
    fSharedList[tPad]->clear();
    delete fSharedList[tPad];
  }
  delete [] fSharedList;
}

//__________________
AliFemtoString AliFemtoEventReaderESD::Report()
{
  AliFemtoString temp = "\n This is the AliFemtoEventReaderESD\n";
  return temp;
}

//__________________
//setting the name of file where names of ESD file are written 
//it takes only this files which have good trees
void AliFemtoEventReaderESD::SetInputFile(const char* inputFile)
{
  char buffer[256];
  fInputFile=string(inputFile);
  cout<<"Input File set on "<<fInputFile<<endl;
  ifstream infile(inputFile);
  if(infile.good()==true)
    { 
      //checking if all give files have good tree inside
      while (infile.eof()==false)
	{
	  infile.getline(buffer,256);
	  //ifstream test_file(buffer);
	  TFile *esdFile=TFile::Open(buffer,"READ");
	  if (esdFile!=0x0)
	    {	
	      TTree* tree = (TTree*) esdFile->Get("esdTree");
	      if (tree!=0x0)
		{
		  cout<<"putting file  "<<string(buffer)<<" into analysis"<<endl;
		  fListOfFiles.push_back(string(buffer));
		  delete tree;
		}
	      esdFile->Close();	
	    }
	  delete esdFile;
	}
    }
}

//setting the next file to read	
bool AliFemtoEventReaderESD::GetNextFile()
{ 	
  if (fCurFile>=fListOfFiles.size())
    return false;
  fFileName=fListOfFiles.at(fCurFile);	
  cout<<"FileName set on "<<fFileName<<" "<<fCurFile<<endl;

  fCurFile++;
  return true;
}
void AliFemtoEventReaderESD::SetConstrained(const bool constrained)
{
  fConstrained=constrained;
}

bool AliFemtoEventReaderESD::GetConstrained() const
{
  return fConstrained;
}

AliFemtoEvent* AliFemtoEventReaderESD::ReturnHbtEvent()
{
  AliFemtoEvent *hbtEvent = 0;
  string tFriendFileName;

  if (fCurEvent==fNumberofEvent)//open next file  
    {
      cout<<"next file"<<endl;
      if(GetNextFile())	
	{
	  delete fEventFriend;
	  fEventFriend = 0;
	  delete fEvent;//added 1.04.2007
	  fEvent=new AliESD();
	  delete fTree;
	  //fTree=0;
	  delete fEsdFile;
		
	  //ESD data
	  fEsdFile=TFile::Open(fFileName.c_str(),"READ");
	  fTree = (TTree*) fEsdFile->Get("esdTree");			
	  fTree->SetBranchAddress("ESD", &fEvent);			

	  // Attach the friend tree with additional information
 	  tFriendFileName = fFileName;
 	  tFriendFileName.insert(tFriendFileName.find("s.root"),"friend");
 	  cout << "Reading friend " << tFriendFileName.c_str() << endl;;
  	  fTree->AddFriend("esdFriendTree",tFriendFileName.c_str());
  	  fTree->SetBranchAddress("ESDfriend",&fEventFriend);

	  fNumberofEvent=fTree->GetEntries();
	  cout<<"Number of Entries in file "<<fNumberofEvent<<endl;
	  fCurEvent=0;
	  //sim data
	}
      else //no more data to read
	{
	  cout<<"no more files "<<hbtEvent<<endl;
	  fReaderStatus=1;
	  return hbtEvent; 
	}
    }		
  cout<<"starting to read event "<<fCurEvent<<endl;
  fTree->GetEvent(fCurEvent);//getting next event
  fEvent->SetESDfriend(fEventFriend);
  vector<int> label_table;//to check labels
	
  hbtEvent = new AliFemtoEvent;
  //setting basic things
  hbtEvent->SetEventNumber(fEvent->GetEventNumber());
  hbtEvent->SetRunNumber(fEvent->GetRunNumber());
  //hbtEvent->SetNumberOfTracks(fEvent->GetNumberOfTracks());
  hbtEvent->SetMagneticField(fEvent->GetMagneticField()*kilogauss);//to check if here is ok
  hbtEvent->SetZDCN1Energy(fEvent->GetZDCN1Energy());
  hbtEvent->SetZDCP1Energy(fEvent->GetZDCP1Energy());
  hbtEvent->SetZDCN2Energy(fEvent->GetZDCN2Energy());
  hbtEvent->SetZDCP2Energy(fEvent->GetZDCP2Energy());
  hbtEvent->SetZDCEMEnergy(fEvent->GetZDCEMEnergy());
  hbtEvent->SetZDCParticipants(fEvent->GetZDCParticipants());
  hbtEvent->SetTriggerMask(fEvent->GetTriggerMask());
  hbtEvent->SetTriggerCluster(fEvent->GetTriggerCluster());
	
  //Vertex
  double fV1[3];
  fEvent->GetVertex()->GetXYZ(fV1);

  AliFmThreeVectorF vertex(fV1[0],fV1[1],fV1[2]);
  hbtEvent->SetPrimVertPos(vertex);
	
  //starting to reading tracks
  int nofTracks=0;  //number of reconstructed tracks in event
  nofTracks=fEvent->GetNumberOfTracks();
  int realnofTracks=0;//number of track which we use ina analysis

  // Clear the shared cluster list
  for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
    fClusterPerPadrow[tPad]->clear();
  }
  for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
    fSharedList[tPad]->clear();
  }


  for (int i=0;i<nofTracks;i++) {
    const AliESDtrack *esdtrack=fEvent->GetTrack(i);//getting next track

    list<Int_t>::iterator tClustIter;

    Int_t tTrackIndices[AliESDfriendTrack::kMaxTPCcluster];
    Int_t tNClusters = esdtrack->GetTPCclusters(tTrackIndices);
    for (int tNcl=0; tNcl<AliESDfriendTrack::kMaxTPCcluster; tNcl++) {
      if (tTrackIndices[tNcl] >= 0) {
	tClustIter = find(fClusterPerPadrow[tNcl]->begin(), fClusterPerPadrow[tNcl]->end(), tTrackIndices[tNcl]);
	if (tClustIter == fClusterPerPadrow[tNcl]->end()) {
	  fClusterPerPadrow[tNcl]->push_back(tTrackIndices[tNcl]);
	}
	else {
	  fSharedList[tNcl]->push_back(tTrackIndices[tNcl]);
	}
      }
    }
      
  }

  for (int i=0;i<nofTracks;i++)
    {
      bool  good_momentum=true; //flaga to chcek if we can read momentum of this track
		
      AliFemtoTrack* trackCopy = new AliFemtoTrack();	
      const AliESDtrack *esdtrack=fEvent->GetTrack(i);//getting next track
      const AliESDfriendTrack *tESDfriendTrack = esdtrack->GetFriendTrack();

      trackCopy->SetCharge((short)esdtrack->GetSign());

      //in aliroot we have AliPID 
      //0-electron 1-muon 2-pion 3-kaon 4-proton 5-photon 6-pi0 7-neutron 8-kaon0 9-eleCon   
      //we use only 5 first
      double esdpid[5];
      esdtrack->GetESDpid(esdpid);
      trackCopy->SetPidProbElectron(esdpid[0]);
      trackCopy->SetPidProbMuon(esdpid[1]);
      trackCopy->SetPidProbPion(esdpid[2]);
      trackCopy->SetPidProbKaon(esdpid[3]);
      trackCopy->SetPidProbProton(esdpid[4]);
						
      double pxyz[3];
      if (fConstrained==true)		    
	good_momentum=esdtrack->GetConstrainedPxPyPz(pxyz); //reading constrained momentum
      else
	good_momentum=esdtrack->GetPxPyPz(pxyz);//reading noconstarined momentum
      AliFemtoThreeVector v(pxyz[0],pxyz[1],pxyz[2]);
      trackCopy->SetP(v);//setting momentum
      trackCopy->SetPt(sqrt(pxyz[0]*pxyz[0]+pxyz[1]*pxyz[1]));
      const AliFmThreeVectorD p(pxyz[0],pxyz[1],pxyz[2]);
      if (p.mag() == 0) {
	delete trackCopy;
	continue;
      }
      const AliFmThreeVectorD origin(fV1[0],fV1[1],fV1[2]);
      //setting helix I do not if it is ok
      AliFmPhysicalHelixD helix(p,origin,(double)(fEvent->GetMagneticField())*kilogauss,(double)(trackCopy->Charge())); 
      trackCopy->SetHelix(helix);
	    	
      trackCopy->SetTrackId(esdtrack->GetID());
      trackCopy->SetFlags(esdtrack->GetStatus());
      //trackCopy->SetLabel(esdtrack->GetLabel());
		
      //some stuff which could be useful 
      float impact[2];
      float covimpact[3];
      esdtrack->GetImpactParameters(impact,covimpact);
      trackCopy->SetImpactD(impact[0]);
      trackCopy->SetImpactZ(impact[1]);
      trackCopy->SetCdd(covimpact[0]);
      trackCopy->SetCdz(covimpact[1]);
      trackCopy->SetCzz(covimpact[2]);
      trackCopy->SetITSchi2(esdtrack->GetITSchi2());    
      trackCopy->SetITSncls(esdtrack->GetNcls(0));     
      trackCopy->SetTPCchi2(esdtrack->GetTPCchi2());       
      trackCopy->SetTPCncls(esdtrack->GetTPCNcls());       
      trackCopy->SetTPCnclsF(esdtrack->GetTPCNclsF());      
      trackCopy->SetTPCsignalN((short)esdtrack->GetTPCsignalN()); //due to bug in aliesdtrack class   
      trackCopy->SetTPCsignalS(esdtrack->GetTPCsignalSigma()); 

      // Fill cluster per padrow information
      Int_t tTrackIndices[AliESDfriendTrack::kMaxTPCcluster];
      Int_t tNClusters = esdtrack->GetTPCclusters(tTrackIndices);
      for (int tNcl=0; tNcl<AliESDfriendTrack::kMaxTPCcluster; tNcl++) {
	if (tTrackIndices[tNcl] > 0)
	  trackCopy->SetTPCcluster(tNcl, 1);
	else
	  trackCopy->SetTPCcluster(tNcl, 0);
      }
      
      // Fill shared cluster information
      list<Int_t>::iterator tClustIter;

      for (int tNcl=0; tNcl<AliESDfriendTrack::kMaxTPCcluster; tNcl++) {
	if (tTrackIndices[tNcl] > 0) {
	  tClustIter = find(fSharedList[tNcl]->begin(), fSharedList[tNcl]->end(), tTrackIndices[tNcl]);
	  if (tClustIter != fSharedList[tNcl]->end()) {
	    trackCopy->SetTPCshared(tNcl, 1);
	    cout << "Event next" <<  endl;
	    cout << "Track: " << i << endl;
	    cout << "Shared cluster: " << tNcl << " " << tTrackIndices[tNcl] << endl;
	  }
	  else {
	    trackCopy->SetTPCshared(tNcl, 0);
	  }
	}
      }

      //decision if we want this track
      //if we using diffrent labels we want that this label was use for first time 
      //if we use hidden info we want to have match between sim data and ESD
      if (good_momentum==true)
	{
	  hbtEvent->TrackCollection()->push_back(trackCopy);//adding track to analysis
	  realnofTracks++;//real number of tracks
	}
      else
	{
	  delete  trackCopy;
	}
		
    }

  hbtEvent->SetNumberOfTracks(realnofTracks);//setting number of track which we read in event	
  fCurEvent++;	
  cout<<"end of reading nt "<<nofTracks<<" real number "<<realnofTracks<<endl;
  if (fCurEvent== fNumberofEvent)//if end of current file close all
    {   
      fTree->Reset(); 
      delete fTree;
      fEsdFile->Close();
    }
  return hbtEvent; 
}
Commit	Line	Data
67427ff7	1	/*
	2	*$Id$
	3	*$Log$
	4	*Revision 1.5 2007-04-03 16:00:08 mchojnacki
	5	*Changes to iprove memory managing
	6	*
	7	*Revision 1.4 2007/03/13 15:30:03 mchojnacki
	8	*adding reader for simulated data
	9	*
	10	*Revision 1.3 2007/03/08 14:58:03 mchojnacki
	11	*adding some alice stuff
	12	*
	13	*Revision 1.2 2007/03/07 13:36:16 mchojnacki
	14	*Add some comments
	15	*
	16	*Revision 1.1.1.1 2007/03/07 10:14:49 mchojnacki
	17	*First version on CVS
	18	*
	19	*/
	20
	21	#include "AliFemtoEventReaderESD.h"
	22
	23	#include "TFile.h"
	24	#include "TTree.h"
	25	#include "AliESD.h"
	26	#include "AliESDtrack.h"
	27
	28	//#include "TSystem.h"
	29
	30	#include "AliFmPhysicalHelixD.h"
	31	#include "AliFmThreeVectorF.h"
	32
	33	#include "SystemOfUnits.h"
	34
	35	#include "AliFemtoEvent.h"
	36
	37	ClassImp(AliFemtoEventReaderESD)
	38
	39	#if !(ST_NO_NAMESPACES)
	40	using namespace units;
	41	#endif
	42
	43	using namespace std;
	44	//____________________________
	45	//constructor with 0 parameters , look at default settings
	46	AliFemtoEventReaderESD::AliFemtoEventReaderESD():
	47	fInputFile(" "),
	48	fFileName(" "),
	49	fConstrained(true),
	50	fNumberofEvent(0),
	51	fCurEvent(0),
	52	fCurFile(0),
	53	fTree(0x0),
	54	fEvent(0x0),
	55	fEsdFile(0x0),
	56	fEventFriend(0)
	57	{
	58	fClusterPerPadrow = (list<Int_t> *) malloc(sizeof(list<Int_t> ) * AliESDfriendTrack::kMaxTPCcluster);
	59	for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
	60	fClusterPerPadrow[tPad] = new list<Int_t>();
	61	}
	62	fSharedList = (list<Int_t> *) malloc(sizeof(list<Int_t> ) * AliESDfriendTrack::kMaxTPCcluster);
	63	for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
	64	fSharedList[tPad] = new list<Int_t>();
65	}
66	}
67
68	//__________________
69	//Destructor
70	AliFemtoEventReaderESD::~AliFemtoEventReaderESD()
71	{
72	//delete fListOfFiles;
73	delete fTree;
74	delete fEvent;
75	delete fEsdFile;
76
77	for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
78	fClusterPerPadrow[tPad]->clear();
79	delete fClusterPerPadrow[tPad];
80	}
81	delete [] fClusterPerPadrow;
82	for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
83	fSharedList[tPad]->clear();
84	delete fSharedList[tPad];
85	}
86	delete [] fSharedList;
87	}
88
89	//__________________
90	AliFemtoString AliFemtoEventReaderESD::Report()
91	{
92	AliFemtoString temp = "\n This is the AliFemtoEventReaderESD\n";
93	return temp;
94	}
95
96	//__________________
97	//setting the name of file where names of ESD file are written
98	//it takes only this files which have good trees
99	void AliFemtoEventReaderESD::SetInputFile(const char* inputFile)
100	{
101	char buffer[256];
102	fInputFile=string(inputFile);
103	cout<<"Input File set on "<<fInputFile<<endl;
104	ifstream infile(inputFile);
105	if(infile.good()==true)
106	{
107	//checking if all give files have good tree inside
108	while (infile.eof()==false)
109	{
110	infile.getline(buffer,256);
111	//ifstream test_file(buffer);
112	TFile *esdFile=TFile::Open(buffer,"READ");
113	if (esdFile!=0x0)
114	{
115	TTree* tree = (TTree*) esdFile->Get("esdTree");
116	if (tree!=0x0)
117	{
118	cout<<"putting file "<<string(buffer)<<" into analysis"<<endl;
119	fListOfFiles.push_back(string(buffer));
120	delete tree;
121	}
122	esdFile->Close();
123	}
124	delete esdFile;
125	}
126	}
127	}
128
129	//setting the next file to read
130	bool AliFemtoEventReaderESD::GetNextFile()
131	{
132	if (fCurFile>=fListOfFiles.size())
133	return false;
134	fFileName=fListOfFiles.at(fCurFile);
135	cout<<"FileName set on "<<fFileName<<" "<<fCurFile<<endl;
136
137	fCurFile++;
138	return true;
139	}
140	void AliFemtoEventReaderESD::SetConstrained(const bool constrained)
141	{
142	fConstrained=constrained;
143	}
144
145	bool AliFemtoEventReaderESD::GetConstrained() const
146	{
147	return fConstrained;
148	}
149
150	AliFemtoEvent* AliFemtoEventReaderESD::ReturnHbtEvent()
151	{
152	AliFemtoEvent *hbtEvent = 0;
153	string tFriendFileName;
154
155	if (fCurEvent==fNumberofEvent)//open next file
156	{
157	cout<<"next file"<<endl;
158	if(GetNextFile())
159	{
160	delete fEventFriend;
161	fEventFriend = 0;
162	delete fEvent;//added 1.04.2007
163	fEvent=new AliESD();
164	delete fTree;
165	//fTree=0;
166	delete fEsdFile;
167
168	//ESD data
169	fEsdFile=TFile::Open(fFileName.c_str(),"READ");
170	fTree = (TTree*) fEsdFile->Get("esdTree");
171	fTree->SetBranchAddress("ESD", &fEvent);
172
173	// Attach the friend tree with additional information
174	tFriendFileName = fFileName;
175	tFriendFileName.insert(tFriendFileName.find("s.root"),"friend");
176	cout << "Reading friend " << tFriendFileName.c_str() << endl;;
177	fTree->AddFriend("esdFriendTree",tFriendFileName.c_str());
178	fTree->SetBranchAddress("ESDfriend",&fEventFriend);
179
180	fNumberofEvent=fTree->GetEntries();
181	cout<<"Number of Entries in file "<<fNumberofEvent<<endl;
182	fCurEvent=0;
183	//sim data
184	}
185	else //no more data to read
186	{
187	cout<<"no more files "<<hbtEvent<<endl;
188	fReaderStatus=1;
189	return hbtEvent;
190	}
191	}
192	cout<<"starting to read event "<<fCurEvent<<endl;
193	fTree->GetEvent(fCurEvent);//getting next event
194	fEvent->SetESDfriend(fEventFriend);
195	vector<int> label_table;//to check labels
196
197	hbtEvent = new AliFemtoEvent;
198	//setting basic things
199	hbtEvent->SetEventNumber(fEvent->GetEventNumber());
200	hbtEvent->SetRunNumber(fEvent->GetRunNumber());
201	//hbtEvent->SetNumberOfTracks(fEvent->GetNumberOfTracks());
202	hbtEvent->SetMagneticField(fEvent->GetMagneticField()*kilogauss);//to check if here is ok
203	hbtEvent->SetZDCN1Energy(fEvent->GetZDCN1Energy());
204	hbtEvent->SetZDCP1Energy(fEvent->GetZDCP1Energy());
205	hbtEvent->SetZDCN2Energy(fEvent->GetZDCN2Energy());
206	hbtEvent->SetZDCP2Energy(fEvent->GetZDCP2Energy());
207	hbtEvent->SetZDCEMEnergy(fEvent->GetZDCEMEnergy());
208	hbtEvent->SetZDCParticipants(fEvent->GetZDCParticipants());
209	hbtEvent->SetTriggerMask(fEvent->GetTriggerMask());
210	hbtEvent->SetTriggerCluster(fEvent->GetTriggerCluster());
211
212	//Vertex
213	double fV1[3];
214	fEvent->GetVertex()->GetXYZ(fV1);
215
216	AliFmThreeVectorF vertex(fV1[0],fV1[1],fV1[2]);
217	hbtEvent->SetPrimVertPos(vertex);
218
219	//starting to reading tracks
220	int nofTracks=0; //number of reconstructed tracks in event
221	nofTracks=fEvent->GetNumberOfTracks();
222	int realnofTracks=0;//number of track which we use ina analysis
223
224	// Clear the shared cluster list
225	for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
226	fClusterPerPadrow[tPad]->clear();
227	}
228	for (int tPad=0; tPad<AliESDfriendTrack::kMaxTPCcluster; tPad++) {
229	fSharedList[tPad]->clear();
230	}
231
232
233	for (int i=0;i<nofTracks;i++) {
234	const AliESDtrack *esdtrack=fEvent->GetTrack(i);//getting next track
235
236	list<Int_t>::iterator tClustIter;
237
238	Int_t tTrackIndices[AliESDfriendTrack::kMaxTPCcluster];
239	Int_t tNClusters = esdtrack->GetTPCclusters(tTrackIndices);
240	for (int tNcl=0; tNcl<AliESDfriendTrack::kMaxTPCcluster; tNcl++) {
241	if (tTrackIndices[tNcl] >= 0) {
242	tClustIter = find(fClusterPerPadrow[tNcl]->begin(), fClusterPerPadrow[tNcl]->end(), tTrackIndices[tNcl]);
243	if (tClustIter == fClusterPerPadrow[tNcl]->end()) {
244	fClusterPerPadrow[tNcl]->push_back(tTrackIndices[tNcl]);
245	}
246	else {
247	fSharedList[tNcl]->push_back(tTrackIndices[tNcl]);
248	}
249	}
250	}
251
252	}
253
254	for (int i=0;i<nofTracks;i++)
255	{
256	bool good_momentum=true; //flaga to chcek if we can read momentum of this track
257
258	AliFemtoTrack* trackCopy = new AliFemtoTrack();
259	const AliESDtrack *esdtrack=fEvent->GetTrack(i);//getting next track
260	const AliESDfriendTrack *tESDfriendTrack = esdtrack->GetFriendTrack();
261
262	trackCopy->SetCharge((short)esdtrack->GetSign());
263
264	//in aliroot we have AliPID
265	//0-electron 1-muon 2-pion 3-kaon 4-proton 5-photon 6-pi0 7-neutron 8-kaon0 9-eleCon
266	//we use only 5 first
267	double esdpid[5];
268	esdtrack->GetESDpid(esdpid);
269	trackCopy->SetPidProbElectron(esdpid[0]);
270	trackCopy->SetPidProbMuon(esdpid[1]);
271	trackCopy->SetPidProbPion(esdpid[2]);
272	trackCopy->SetPidProbKaon(esdpid[3]);
273	trackCopy->SetPidProbProton(esdpid[4]);
274
275	double pxyz[3];
276	if (fConstrained==true)
277	good_momentum=esdtrack->GetConstrainedPxPyPz(pxyz); //reading constrained momentum
278	else
279	good_momentum=esdtrack->GetPxPyPz(pxyz);//reading noconstarined momentum
280	AliFemtoThreeVector v(pxyz[0],pxyz[1],pxyz[2]);
281	trackCopy->SetP(v);//setting momentum
282	trackCopy->SetPt(sqrt(pxyz[0]pxyz[0]+pxyz[1]pxyz[1]));
283	const AliFmThreeVectorD p(pxyz[0],pxyz[1],pxyz[2]);
284	if (p.mag() == 0) {
285	delete trackCopy;
286	continue;
287	}
288	const AliFmThreeVectorD origin(fV1[0],fV1[1],fV1[2]);
289	//setting helix I do not if it is ok
290	AliFmPhysicalHelixD helix(p,origin,(double)(fEvent->GetMagneticField())*kilogauss,(double)(trackCopy->Charge()));
291	trackCopy->SetHelix(helix);
292
293	trackCopy->SetTrackId(esdtrack->GetID());
294	trackCopy->SetFlags(esdtrack->GetStatus());
295	//trackCopy->SetLabel(esdtrack->GetLabel());
296
297	//some stuff which could be useful
298	float impact[2];
299	float covimpact[3];
300	esdtrack->GetImpactParameters(impact,covimpact);
301	trackCopy->SetImpactD(impact[0]);
302	trackCopy->SetImpactZ(impact[1]);
303	trackCopy->SetCdd(covimpact[0]);
304	trackCopy->SetCdz(covimpact[1]);
305	trackCopy->SetCzz(covimpact[2]);
306	trackCopy->SetITSchi2(esdtrack->GetITSchi2());
307	trackCopy->SetITSncls(esdtrack->GetNcls(0));
308	trackCopy->SetTPCchi2(esdtrack->GetTPCchi2());
309	trackCopy->SetTPCncls(esdtrack->GetTPCNcls());
310	trackCopy->SetTPCnclsF(esdtrack->GetTPCNclsF());
311	trackCopy->SetTPCsignalN((short)esdtrack->GetTPCsignalN()); //due to bug in aliesdtrack class
312	trackCopy->SetTPCsignalS(esdtrack->GetTPCsignalSigma());
313
314	// Fill cluster per padrow information
315	Int_t tTrackIndices[AliESDfriendTrack::kMaxTPCcluster];
316	Int_t tNClusters = esdtrack->GetTPCclusters(tTrackIndices);
317	for (int tNcl=0; tNcl<AliESDfriendTrack::kMaxTPCcluster; tNcl++) {
318	if (tTrackIndices[tNcl] > 0)
319	trackCopy->SetTPCcluster(tNcl, 1);
320	else
321	trackCopy->SetTPCcluster(tNcl, 0);
322	}
323
324	// Fill shared cluster information
325	list<Int_t>::iterator tClustIter;
326
327	for (int tNcl=0; tNcl<AliESDfriendTrack::kMaxTPCcluster; tNcl++) {
328	if (tTrackIndices[tNcl] > 0) {
329	tClustIter = find(fSharedList[tNcl]->begin(), fSharedList[tNcl]->end(), tTrackIndices[tNcl]);
330	if (tClustIter != fSharedList[tNcl]->end()) {
331	trackCopy->SetTPCshared(tNcl, 1);
332	cout << "Event next" << endl;
333	cout << "Track: " << i << endl;
334	cout << "Shared cluster: " << tNcl << " " << tTrackIndices[tNcl] << endl;
335	}
336	else {
337	trackCopy->SetTPCshared(tNcl, 0);
338	}
339	}
340	}
341
342	//decision if we want this track
343	//if we using diffrent labels we want that this label was use for first time
344	//if we use hidden info we want to have match between sim data and ESD
345	if (good_momentum==true)
346	{
347	hbtEvent->TrackCollection()->push_back(trackCopy);//adding track to analysis
348	realnofTracks++;//real number of tracks
349	}
350	else
351	{
352	delete trackCopy;
353	}
354
355	}
356
357	hbtEvent->SetNumberOfTracks(realnofTracks);//setting number of track which we read in event
358	fCurEvent++;
359	cout<<"end of reading nt "<<nofTracks<<" real number "<<realnofTracks<<endl;
360	if (fCurEvent== fNumberofEvent)//if end of current file close all
361	{
362	fTree->Reset();
363	delete fTree;
364	fEsdFile->Close();
365	}
366	return hbtEvent;
367	}
368
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