#include "AliHBTReaderTPC.h"
-
+//______________________________________________
+//
+// class AliHBTReaderTPC
+//
+// reader for TPC tracking
+// needs galice.root, AliTPCtracks.root, AliTPCclusters.root
+//
+// more info: http://aliweb.cern.ch/people/skowron/analyzer/index.html
+// Piotr.Skowronski@cern.ch
+//
+///////////////////////////////////////////////////////////////////////////
#include <TTree.h>
#include <TFile.h>
#include <TParticle.h>
+#include <TH1.h>
+
+#include <Varargs.h>
#include <AliRun.h>
+#include <AliLoader.h>
+#include <AliStack.h>
#include <AliMagF.h>
#include <AliTPCtrack.h>
#include <AliTPCParam.h>
+#include <AliTPCtracker.h>
+#include <AliTPCLoader.h>
#include "AliHBTRun.h"
#include "AliHBTEvent.h"
#include "AliHBTParticleCut.h"
+
ClassImp(AliHBTReaderTPC)
-//______________________________________________
-//
-// class AliHBTReaderTPC
-//
-//reader for TPC tracking
-//needs galice.root, AliTPCtracks.root
-//
-//more info: http://alisoft.cern.ch/people/skowron/analyzer/index.html
-//Piotr.Skowronski@cern.ch
-//
+AliHBTReaderTPC::AliHBTReaderTPC():
+ fFileName("galice.root"),
+ fRunLoader(0x0),
+ fTPCLoader(0x0),
+ fMagneticField(0.0),
+ fUseMagFFromRun(kTRUE),
+ fNClustMin(0),
+ fNClustMax(190),
+ fNChi2PerClustMin(0.0),
+ fNChi2PerClustMax(10e5),
+ fC44Min(0.0),
+ fC44Max(10e5)
+{
+ //constructor,
+ //Defaults:
+ // galicefilename = "" - this means: Do not open gAlice file -
+ // just leave the global pointer untouched
+
+}
-AliHBTReaderTPC:: AliHBTReaderTPC(const Char_t* trackfilename,
- const Char_t* clusterfilename,
- const Char_t* galicefilename):
- fParticles(new AliHBTRun()),
- fTracks(new AliHBTRun()),
- fTrackFileName(trackfilename),
- fClusterFileName(clusterfilename),
- fGAliceFileName(galicefilename),
- fIsRead(kFALSE),
- fMagneticField(0.4),
- fUseMagFFromRun(kTRUE)
+AliHBTReaderTPC::AliHBTReaderTPC(const Char_t* galicefilename):
+ fFileName(galicefilename),
+ fRunLoader(0x0),
+ fTPCLoader(0x0),
+ fMagneticField(0.0),
+ fUseMagFFromRun(kTRUE),
+ fNClustMin(0),
+ fNClustMax(190),
+ fNChi2PerClustMin(0.0),
+ fNChi2PerClustMax(10e5),
+ fC44Min(0.0),
+ fC44Max(10e5)
{
//constructor,
//Defaults:
- // trackfilename = "AliTPCtracks.root"
- // clusterfilename = "AliTPCclusters.root"
// galicefilename = "" - this means: Do not open gAlice file -
- // just leave the global pointer untached
- //this class is not supposed to be written, that is why I let myself and user
- //for comfort of having default constructor which allocates dynamic memmory
- //in case it is going to be written, it should be changed
+ // just leave the global pointer untouched
}
/********************************************************************/
-AliHBTReaderTPC::AliHBTReaderTPC(TObjArray* dirs,
- const Char_t* trackfilename, const Char_t* clusterfilename,
- const Char_t* galicefilename):
+AliHBTReaderTPC::AliHBTReaderTPC(TObjArray* dirs, const Char_t* galicefilename):
AliHBTReader(dirs),
- fParticles(new AliHBTRun()),
- fTracks(new AliHBTRun()),
- fTrackFileName(trackfilename),
- fClusterFileName(clusterfilename),
- fGAliceFileName(galicefilename),
- fIsRead(kFALSE),
- fMagneticField(0.4),
- fUseMagFFromRun(kTRUE)
+ fFileName(galicefilename),
+ fRunLoader(0x0),
+ fTPCLoader(0x0),
+ fMagneticField(0.0),
+ fUseMagFFromRun(kTRUE),
+ fNClustMin(0),
+ fNClustMax(190),
+ fNChi2PerClustMin(0.0),
+ fNChi2PerClustMax(10e5),
+ fC44Min(0.0),
+ fC44Max(10e5)
{
//constructor,
//Defaults:
- // trackfilename = "AliTPCtracks.root"
- // clusterfilename = "AliTPCclusters.root"
// galicefilename = "" - this means: Do not open gAlice file -
// just leave the global pointer untached
+
}
/********************************************************************/
AliHBTReaderTPC::~AliHBTReaderTPC()
- {
+{
//desctructor
- delete fParticles;
- delete fTracks;
- }
-/********************************************************************/
-
-AliHBTEvent* AliHBTReaderTPC::GetParticleEvent(Int_t n)
- {
- //returns Nth event with simulated particles
- if (!fIsRead)
- if(Read(fParticles,fTracks))
- {
- Error("GetParticleEvent","Error in reading");
- return 0x0;
- }
- return fParticles->GetEvent(n);
- }
-/********************************************************************/
-
-AliHBTEvent* AliHBTReaderTPC::GetTrackEvent(Int_t n)
- {
- //returns Nth event with reconstructed tracks
- if (!fIsRead)
- if(Read(fParticles,fTracks))
- {
- Error("GetTrackEvent","Error in reading");
- return 0x0;
- }
- return fTracks->GetEvent(n);
- }
-/********************************************************************/
-
-Int_t AliHBTReaderTPC::GetNumberOfPartEvents()
- {
- //returns number of events of particles
- if (!fIsRead)
- if ( Read(fParticles,fTracks))
- {
- Error("GetNumberOfPartEvents","Error in reading");
- return 0;
- }
- return fParticles->GetNumberOfEvents();
- }
-
+ if (AliHBTParticle::GetDebug())
+ {
+ Info("~AliHBTReaderTPC","deleting Run Loader");
+ AliLoader::SetDebug(AliHBTParticle::GetDebug());
+ }
+
+ delete fRunLoader;
+
+ if (AliHBTParticle::GetDebug())
+ {
+ Info("~AliHBTReaderTPC","deleting Run Loader Done");
+ }
+}
/********************************************************************/
-Int_t AliHBTReaderTPC::GetNumberOfTrackEvents()
- {
- //returns number of events of tracks
- if (!fIsRead)
- if(Read(fParticles,fTracks))
- {
- Error("GetNumberOfTrackEvents","Error in reading");
- return 0;
- }
- return fTracks->GetNumberOfEvents();
- }
+
+void AliHBTReaderTPC::Rewind()
+{
+ delete fRunLoader;
+ fRunLoader = 0x0;
+ fCurrentDir = 0;
+ fNEventsRead= 0;
+ if (fTrackCounter) fTrackCounter->Reset();
+}
/********************************************************************/
-
-Int_t AliHBTReaderTPC::Read(AliHBTRun* particles, AliHBTRun *tracks)
+Int_t AliHBTReaderTPC::ReadNext()
{
//reads data and puts put to the particles and tracks objects
//reurns 0 if everything is OK
//
Info("Read","");
- Int_t i; //iterator and some temprary values
- Int_t Nevents = 0;
- Int_t totalNevents = 0;
- TFile *aTracksFile;//file with tracks
- TFile *aClustersFile;//file with clusters
- TFile *aGAliceFile;//!ile name with galice
-
- if (!particles) //check if an object is instatiated
- {
- Error("Read"," particles object must instatiated before passing it to the reader");
- }
- if (!tracks) //check if an object is instatiated
- {
- Error("Read"," tracks object must instatiated before passing it to the reader");
- }
- particles->Reset();//clear runs == delete all old events
- tracks->Reset();
-
+
TObjArray *tarray = new TObjArray(5000); //cotainer for tpc tracks
tarray->SetOwner(); //set the ownership of the objects it contains
//when array is is deleted or cleared all objects
//that it contains are deleted
- Int_t currentdir = 0;
- Int_t Ndirs;
- if (fDirs) //if array with directories is supplied by user
- {
- Ndirs = fDirs->GetEntries(); //get the number if directories
- }
- else
- {
- Ndirs = 0; //if the array is not supplied read only from current directory
- }
+ if (fParticlesEvent == 0x0) fParticlesEvent = new AliHBTEvent();
+ if (fTracksEvent == 0x0) fTracksEvent = new AliHBTEvent();
+
+ fParticlesEvent->Reset();
+ fTracksEvent->Reset();
do //do{}while; is OK even if 0 dirs specified. In that case we try to read from "./"
{
-
- if( (i=OpenFiles(aTracksFile,aClustersFile,aGAliceFile,currentdir)) )
+
+ if (fRunLoader == 0x0)
+ if (OpenNextSession()) continue;//directory counter is increased inside in case of error
+
+ if (fCurrentEvent == fRunLoader->GetNumberOfEvents())
{
- Error("Read","Exiting due to problems with opening files. Errorcode %d",i);
- currentdir++;
- continue;
+ //read next directory
+ delete fRunLoader;//close current session
+ fRunLoader = 0x0;//assure pointer is null
+ fCurrentDir++;//go to next dir
+ continue;//directory counter is increased inside in case of error
}
-
+
+ Info("ReadNext","Reading Event %d",fCurrentEvent);
- if (gAlice->TreeE())//check if tree E exists
+ fRunLoader->GetEvent(fCurrentEvent);
+ TTree *tracktree = fTPCLoader->TreeT();//get the tree
+ if (!tracktree) //check if we got the tree
+ {//if not return with error
+ Error("ReadNext","Can't get a tree with TPC tracks !\n");
+ fCurrentEvent++;//go to next dir
+ continue;
+ }
+
+ TBranch *trackbranch=tracktree->GetBranch("tracks");//get the branch with tracks
+ if (!trackbranch) ////check if we got the branch
+ {//if not return with error
+ Error("ReadNext","Can't get a branch with TPC tracks !\n");
+ fCurrentEvent++;//go to next dir
+ continue;
+ }
+ Int_t ntpctracks=(Int_t)tracktree->GetEntries();//get number of TPC tracks
+ Info("ReadNext","Found %d TPC tracks.",ntpctracks);
+ //Copy tracks to array
+
+ AliTPCtrack *iotrack=0;
+
+ for (Int_t i=0; i<ntpctracks; i++) //loop over all tpc tracks
{
- Nevents = (Int_t)gAlice->TreeE()->GetEntries();//if yes get number of events in gAlice
- Info("Read","________________________________________________________");
- Info("Read","Found %d event(s) in directory %s",Nevents,GetDirName(currentdir).Data());
- Float_t mf;
- if (fUseMagFFromRun)
- {
- mf = gAlice->Field()->SolenoidField();
- Info("Read","Setting Magnetic Field from run: B=%fT",mf/10.);
- }
- else
- {
- Info("Read","Setting Own Magnetic Field: B=%fT",fMagneticField);
- mf = fMagneticField*10.;
- }
- AliKalmanTrack::SetConvConst(1000/0.299792458/mf);
+ iotrack=new AliTPCtrack; //create new tracks
+ trackbranch->SetAddress(&iotrack); //tell the branch ehere to put track data from tree(file)
+ tracktree->GetEvent(i); //stream track i to the iotrack
+ tarray->AddLast(iotrack); //put the track in the array
}
- else
- {//if not return an error
- Error("Read","Can not find Header tree (TreeE) in gAlice");
- currentdir++;
+
+ Double_t xk;
+ Double_t par[5];
+ Float_t phi, lam, pt;//angles and transverse momentum
+ Int_t label; //label of the current track
+
+ AliStack* stack = fRunLoader->Stack();
+ if (stack == 0x0)
+ {
+ Error("ReadNext","Can not get stack for current event",fCurrentEvent);
+ fCurrentEvent++;
continue;
}
-
- aGAliceFile->cd();//set cluster file active
- AliTPCParam *TPCParam= (AliTPCParam*)aGAliceFile->Get("75x40_100x60_150x60");
- if (!TPCParam)
- {
- TPCParam= (AliTPCParam*)aGAliceFile->Get("75x40_100x60");
- if (!TPCParam)
+ stack->Particles();
+
+ for (Int_t i=0; i<ntpctracks; i++) //loop over all good tracks
+ {
+ iotrack = (AliTPCtrack*)tarray->At(i);
+ label = iotrack->GetLabel();
+
+ if (label < 0) continue;
+
+ if (CheckTrack(iotrack)) continue;
+
+ TParticle *p = (TParticle*)stack->Particle(label);
+
+ if(p == 0x0) continue; //if returned pointer is NULL
+ if(p->GetPDG() == 0x0) continue; //if particle has crezy PDG code (not known to our database)
+
+ if(Pass(p->GetPdgCode())) continue; //check if we are intersted with particles of this type
+ //if not take next partilce
+
+ AliHBTParticle* part = new AliHBTParticle(*p,i);
+ if(Pass(part)) { delete part; continue;}//check if meets all criteria of any of our cuts
+ //if it does not delete it and take next good track
+
+// iotrack->PropagateTo(3.,0.0028,65.19);
+// iotrack->PropagateToVertex(36.66,1.2e-3);//orig
+ iotrack->PropagateToVertex(50.,0.0353);
+
+ iotrack->GetExternalParameters(xk,par); //get properties of the track
+
+ phi=TMath::ASin(par[2]) + iotrack->GetAlpha();
+ if (phi<-TMath::Pi()) phi+=2*TMath::Pi();
+ if (phi>=TMath::Pi()) phi-=2*TMath::Pi();
+ lam=par[3];
+ pt=1.0/TMath::Abs(par[4]);
+
+ Double_t tpx = pt * TMath::Cos(phi); //track x coordinate of momentum
+ Double_t tpy = pt * TMath::Sin(phi); //track y coordinate of momentum
+ Double_t tpz = pt * lam; //track z coordinate of momentum
+
+ Double_t mass = p->GetMass();
+ Double_t tEtot = TMath::Sqrt( tpx*tpx + tpy*tpy + tpz*tpz + mass*mass);//total energy of the track
+
+ AliHBTParticle* track = new AliHBTParticle(p->GetPdgCode(),i, tpx, tpy , tpz, tEtot, 0., 0., 0., 0.);
+ if(Pass(track))//check if meets all criteria of any of our cuts
+ //if it does not delete it and take next good track
{
- Error("Read","TPC parameters have not been found !\n");
- currentdir++;
+ delete track;
+ delete part;
continue;
}
+ fParticlesEvent->AddParticle(part);
+ fTracksEvent->AddParticle(track);
}
-
-
- for(Int_t currentEvent =0; currentEvent<Nevents;currentEvent++)//loop over all events
- {
- Info("Read","Reading Event %d",currentEvent);
- /**************************************/
- /**************************************/
- /**************************************/
-
- aTracksFile->cd();//set track file active
-
- Char_t treename[100];
- sprintf(treename,"TreeT_TPC_%d",currentEvent);//prepare name of the tree
-
- TTree *tracktree=0;
-
- tracktree=(TTree*)aTracksFile->Get(treename);//get the tree
- if (!tracktree) //check if we got the tree
- {//if not return with error
- Error("Read","Can't get a tree with TPC tracks !\n");
- continue;
- }
-
- TBranch *trackbranch=tracktree->GetBranch("tracks");//get the branch with tracks
- if (!trackbranch) ////check if we got the branch
- {//if not return with error
- Error("Read","Can't get a branch with TPC tracks !\n");
- continue;
- }
- Int_t NTPCtracks=(Int_t)tracktree->GetEntries();//get number of TPC tracks
- Info("Read","Found %d TPC tracks.",NTPCtracks);
- //Copy tracks to array
-
- AliTPCtrack *iotrack=0;
-
-// aClustersFile->cd();//set cluster file active
-
- for (i=0; i<NTPCtracks; i++) //loop over all tpc tracks
- {
- iotrack=new AliTPCtrack; //create new tracks
- trackbranch->SetAddress(&iotrack); //tell the branch ehere to put track data from tree(file)
- tracktree->GetEvent(i); //stream track i to the iotrack
- tarray->AddLast(iotrack); //put the track in the array
- }
-
- aTracksFile->Delete(treename);//delete tree from memmory (and leave untached on disk)- we do not need it any more
- aTracksFile->Delete("tracks");//delete branch from memmory
-
- trackbranch = 0x0;
- tracktree = 0x0;
-
- Double_t xk;
- Double_t par[5];
- Float_t phi, lam, pt;//angles and transverse momentum
- Int_t label; //label of the current track
-
- aGAliceFile->cd();
- gAlice->GetEvent(currentEvent);
-
- gAlice->Particles();
-
- for (i=0; i<NTPCtracks; i++) //loop over all good tracks
- {
- iotrack = (AliTPCtrack*)tarray->At(i);
- label = iotrack->GetLabel();
-
- if (label < 0) continue;
-
-
- TParticle *p = (TParticle*)gAlice->Particle(label);
-
- if(p == 0x0) continue; //if returned pointer is NULL
- if(p->GetPDG() == 0x0) continue; //if particle has crezy PDG code (not known to our database)
-
- if(Pass(p->GetPdgCode())) continue; //check if we are intersted with particles of this type
- //if not take next partilce
- AliHBTParticle* part = new AliHBTParticle(*p);
- if(Pass(part)) { delete part; continue;}//check if meets all criteria of any of our cuts
- //if it does not delete it and take next good track
-
- iotrack->PropagateToVertex();
-
- iotrack->GetExternalParameters(xk,par); //get properties of the track
- phi=TMath::ASin(par[2]) + iotrack->GetAlpha();
- if (phi<-TMath::Pi()) phi+=2*TMath::Pi();
- if (phi>=TMath::Pi()) phi-=2*TMath::Pi();
- lam=par[3];
- pt=1.0/TMath::Abs(par[4]);
-
- Double_t tpx = pt * TMath::Cos(phi); //track x coordinate of momentum
- Double_t tpy = pt * TMath::Sin(phi); //track y coordinate of momentum
- Double_t tpz = pt * lam; //track z coordinate of momentum
-
- Double_t mass = p->GetMass();
- Double_t tEtot = TMath::Sqrt( tpx*tpx + tpy*tpy + tpz*tpz + mass*mass);//total energy of the track
-
- AliHBTParticle* track = new AliHBTParticle(p->GetPdgCode(), tpx, tpy , tpz, tEtot, 0., 0., 0., 0.);
- if(Pass(track))//check if meets all criteria of any of our cuts
- //if it does not delete it and take next good track
- {
- delete track;
- delete part;
- continue;
- }
- particles->AddParticle(totalNevents,part);//put track and particle on the run
- tracks->AddParticle(totalNevents,track);
- }
- tarray->Clear(); //clear the array
-
- /**************************************/
- /**************************************/
- /**************************************/
- totalNevents++;
- }
- //save environment (resouces) --
- //clean your place after the work
- CloseFiles(aTracksFile,aClustersFile,aGAliceFile);
- currentdir++;
- }while(currentdir < Ndirs);
-
+
+ Info("ReadNext","Read %d tracks and %d particles from event %d (event %d in dir %d).",
+ fParticlesEvent->GetNumberOfParticles(), fTracksEvent->GetNumberOfParticles(),
+ fNEventsRead,fCurrentEvent,fCurrentDir);
+ fTrackCounter->Fill(fTracksEvent->GetNumberOfParticles());
+ fCurrentEvent++;
+ fNEventsRead++;
+ delete tarray;
+ return 0;
+ }while(fCurrentDir < GetNumberOfDirs());
delete tarray;
- fIsRead = kTRUE;
- return 0;
+ return 1;
}
-
/********************************************************************/
-Int_t AliHBTReaderTPC::OpenFiles
-(TFile*& aTracksFile, TFile*& aClustersFile, TFile*& agAliceFile,Int_t event)
+
+Int_t AliHBTReaderTPC::OpenNextSession()
{
- //opens all the files
-
-
- const TString& dirname = GetDirName(event);
- if (dirname == "")
- {
- Error("OpenFiles","Can not get directory name");
- return 4;
- }
-
- TString filename = dirname +"/"+ fTrackFileName;
- aTracksFile = TFile::Open(filename.Data());
- if ( aTracksFile == 0x0 )
- {
- Error("OpenFiles","Can't open file with tacks named %s",filename.Data());
- return 1;
- }
- if (!aTracksFile->IsOpen())
- {
- Error("OpenFiles","Can't open file with tacks named %s",filename.Data());
+ TString filename = GetDirName(fCurrentDir);
+ if (filename.IsNull())
+ {
+ DoOpenError("Can not get directory name");
+ return 1;
+ }
+ filename = filename +"/"+ fFileName;
+ fRunLoader = AliRunLoader::Open(filename,AliConfig::fgkDefaultEventFolderName);
+ if( fRunLoader == 0x0)
+ {
+ DoOpenError("Can not open session.");
+ return 1;
+ }
+
+ fRunLoader->LoadHeader();
+ if (fRunLoader->GetNumberOfEvents() <= 0)
+ {
+ DoOpenError("There is no events in this directory.");
+ return 1;
+ }
+
+ if (fRunLoader->LoadKinematics())
+ {
+ DoOpenError("Error occured while loading kinematics.");
+ return 1;
+ }
+ fTPCLoader = (AliTPCLoader*)fRunLoader->GetLoader("TPCLoader");
+ if ( fTPCLoader == 0x0)
+ {
+ DoOpenError("Exiting due to problems with opening files.");
+ return 1;
+ }
+ Info("OpenNextSession","________________________________________________________");
+ Info("OpenNextSession","Found %d event(s) in directory %s",
+ fRunLoader->GetNumberOfEvents(),GetDirName(fCurrentDir).Data());
+ Float_t mf;
+ if (fUseMagFFromRun)
+ {
+ fRunLoader->LoadgAlice();
+ mf = fRunLoader->GetAliRun()->Field()->SolenoidField();
+ Info("OpenNextSession","Setting Magnetic Field from run: B=%fT",mf/10.);
+ fRunLoader->UnloadgAlice();
+ }
+ else
+ {
+ Info("OpenNextSession","Setting Own Magnetic Field: B=%fT",fMagneticField);
+ if (fMagneticField == 0x0)
+ {
+ Fatal("OpenNextSession","Magnetic field can not be 0.");
+ return 1;//pro forma
+ }
+ mf = fMagneticField*10.;
+ }
+ AliKalmanTrack::SetConvConst(1000/0.299792458/mf);
+
+
+ fRunLoader->CdGAFile();
+ AliTPCParam *TPCParam= (AliTPCParam*)gDirectory->Get("75x40_100x60");
+ if (!TPCParam)
+ {
+ TPCParam=(AliTPCParam *)gDirectory->Get("75x40_100x60_150x60");
+ if (!TPCParam)
+ {
+ DoOpenError("TPC parameters have not been found !\n");
return 1;
}
+ }
-/*
- filename = dirname +"/"+ fClusterFileName;
- aClustersFile = TFile::Open(filename.Data());
- if ( aClustersFile == 0x0 )
- {
- Error("OpenFiles","Can't open file with TPC clusters named %s",filename.Data());
- return 2;
- }
- if (!aClustersFile->IsOpen())
- {
- Error("OpenFiles","Can't open file with TPC clusters named %s",filename.Data());
- return 2;
- }
-*/
- filename = dirname +"/"+ fGAliceFileName;
- agAliceFile = TFile::Open(filename.Data());
- if ( agAliceFile== 0x0)
- {
- Error("OpenFiles","Can't open file with TPC clusters named %s",filename.Data());
- return 3;
- }
- if (!agAliceFile->IsOpen())
- {
- Error("OpenFiles","Can't open file with TPC clusters named %s",filename.Data());
- return 3;
- }
-
- if (!(gAlice=(AliRun*)agAliceFile->Get("gAlice")))
- {
- Error("OpenFiles","gAlice have not been found on %s !\n",filename.Data());
- return 5;
- }
-
- return 0;
+ if (fTPCLoader->LoadTracks())
+ {
+ DoOpenError("Error occured while loading TPC tracks.");
+ return 1;
+ }
+
+ fCurrentEvent = 0;
+ return 0;
}
/********************************************************************/
-/********************************************************************/
-
-void AliHBTReaderTPC::CloseFiles(TFile*& tracksFile, TFile*& clustersFile, TFile*& gAliceFile)
+void AliHBTReaderTPC::DoOpenError( const char *va_(fmt), ...)
{
- //closes the files
- tracksFile->Close();
- delete tracksFile;
- tracksFile = 0x0;
+ // Does error display and clean-up in case error caught on Open Next Session
-// clustersFile->Close();
-// delete clustersFile;
-// clustersFile = 0x0;
+ va_list ap;
+ va_start(ap,va_(fmt));
+ Error("OpenNextSession", va_(fmt), ap);
+ va_end(ap);
+
+ delete fRunLoader;
+ fRunLoader = 0x0;
+ fTPCLoader = 0x0;
+ fCurrentDir++;
+}
- delete gAlice;
- gAlice = 0;
+/********************************************************************/
+Bool_t AliHBTReaderTPC::CheckTrack(AliTPCtrack* t)
+{
+ //Performs check of the track
+ if ( (t->GetNumberOfClusters() > fNClustMax) || (t->GetNumberOfClusters() < fNClustMin) ) return kTRUE;
- if (gAliceFile)
- {
- gAliceFile->Close();
- delete gAliceFile;
- gAliceFile = 0x0;
- }
+ Double_t cc[15];
+ t->GetCovariance(cc);
+ if ( (cc[9] < fC44Min) || (cc[9] > fC44Max) ) return kTRUE;
+
+ Float_t chisqpercl = t->GetChi2()/((Double_t)t->GetNumberOfClusters());
+ if ( (chisqpercl < fNChi2PerClustMin) || (chisqpercl > fNChi2PerClustMax) ) return kTRUE;
+
+ return kFALSE;
+
}
+/********************************************************************/
+void AliHBTReaderTPC::SetNClustersRange(Int_t min,Int_t max)
+{
+ //sets range of Number Of Clusters that tracks have to have
+ fNClustMin = min;
+ fNClustMax = max;
+}
+/********************************************************************/
+
+void AliHBTReaderTPC::SetChi2PerCluserRange(Float_t min, Float_t max)
+{
+ //sets range of Chi2 per Cluster
+ fNChi2PerClustMin = min;
+ fNChi2PerClustMax = max;
+}
/********************************************************************/
+void AliHBTReaderTPC::SetC44Range(Float_t min, Float_t max)
+{
+ //Sets range of C44 parameter of covariance matrix of the track
+ //it defines uncertainty of the momentum
+ fC44Min = min;
+ fC44Max = max;
+}
+
/********************************************************************/
/********************************************************************/
/********************************************************************/
+/*
+void (AliTPCtrack* iotrack, Double_t curv)
+{
+ Double_t x[5];
+ iotrack->GetExternalPara
+ //xk is a
+ Double_t fP4=iotrack->GetC();
+ Double_t fP2=iotrack->GetEta();
+
+ Double_t x1=fX, x2=x1+(xk-x1), dx=x2-x1, y1=fP0, z1=fP1;
+ Double_t c1=fP4*x1 - fP2, r1=sqrt(1.- c1*c1);
+ Double_t c2=fP4*x2 - fP2, r2=sqrt(1.- c2*c2);
+
+ fP0 += dx*(c1+c2)/(r1+r2);
+ fP1 += dx*(c1+c2)/(c1*r2 + c2*r1)*fP3;
+
+}
+*/
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff