[u/mrichter/AliRoot.git] / TOF / AliTOFComparison.C

/****************************************************************************
 *      This macro estimates efficiency of matching with the TOF.           *
 *      TOF "Good" tracks are those originating from the primary vertex,    *
 *      being "good" in the ITS and having at least one digit in the TOF.   * 
 *         (To get the list of "good" tracks one should first run           *
 *          AliTPCComparison.C and AliITSComparisonV2.C macros)             *
 *           Origin: I.Belikov, CERN, Jouri.Belikov@cern.ch                 *
 ****************************************************************************/

#if !defined(__CINT__) || defined(__MAKECINT__)
  #include <TMath.h>
  #include <TError.h>
  #include <Riostream.h>
  #include <TH1F.h>
  #include <TTree.h>
  #include <TParticle.h>
  #include <TCanvas.h>
  #include <TLine.h>
  #include <TText.h>
  #include <TBenchmark.h>
  #include <TStyle.h>
  #include <TFile.h>
  #include <TROOT.h>

  #include "AliStack.h"
  #include "AliHeader.h"
  #include "AliTrackReference.h"
  #include "AliRunLoader.h"
  #include "AliRun.h"
  #include "AliESD.h"

  #include "AliTOFdigit.h"
  #include "AliLoader.h"

  #include "TClonesArray.h"
#endif

Int_t GoodTracksTOF(const Char_t *dir=".");

extern AliRun *gAlice;
extern TBenchmark *gBenchmark;
extern TROOT *gROOT;

static Int_t allgood=0;
static Int_t allmatched=0;
static Int_t allmismatched=0;

Int_t AliTOFComparison(const Char_t *dir=".") {
   gBenchmark->Start("AliTOFComparison");

   ::Info("AliTOFComparison.C","Doing comparison...");
   

   Double_t pmin=0.2;
   Double_t pmax=3.0;

   TH1F *hgood=(TH1F*)gROOT->FindObject("hgood");    
   if (!hgood) hgood=new TH1F("hgood","Good tracks",30,pmin,pmax);
    
   TH1F *hfound=(TH1F*)gROOT->FindObject("hfound");
   if (!hfound) hfound=new TH1F("hfound","Matched tracks",30,pmin,pmax);

   TH1F *hfake=(TH1F*)gROOT->FindObject("hfake");
   if (!hfake) hfake=new TH1F("hfake","Mismatched tracks",30,pmin,pmax);

   TH1F *hgp=(TH1F*)gROOT->FindObject("hgp");
   if (!hgp) hgp=new TH1F("hgp","",30,pmin,pmax);
   hgp->SetLineColor(4); hgp->SetLineWidth(2);

   TH1F *hfp=(TH1F*)gROOT->FindObject("hfp");
   if (!hfp) hfp=new TH1F("hfp","Probability of mismatching",30,pmin,pmax);
   hfp->SetFillColor(1); hfp->SetFillStyle(3013); hfp->SetLineWidth(2);

   TH1F *hgoo=(TH1F*)gROOT->FindObject("hgoo");    
   if (!hgoo) hgoo=new TH1F("hgoo","Good tracks",30,-1,1);
    
   TH1F *hfoun=(TH1F*)gROOT->FindObject("hfoun");
   if (!hfoun) hfoun=new TH1F("hfoun","Matched tracks",30,-1,1);

   TH1F *hfak=(TH1F*)gROOT->FindObject("hfak");
   if (!hfak) hfak=new TH1F("hfak","Mismatched tracks",30,-1,1);

   TH1F *hgl=(TH1F*)gROOT->FindObject("hgl");
   if (!hgl) hgl=new TH1F("hgl","",30,-1,1);
   hgl->SetLineColor(4); hgl->SetLineWidth(2);

   TH1F *hfl=(TH1F*)gROOT->FindObject("hfl");
   if (!hfl) hfl=new TH1F("hfl","Probability of mismatching",30,-1,1);
   hfl->SetFillColor(1); hfl->SetFillStyle(3013); hfl->SetLineWidth(2);


   Char_t fname[100];
   sprintf(fname,"%s/GoodTracksTOF.root",dir);

   TFile *refFile=TFile::Open(fname,"old");
   if (!refFile || !refFile->IsOpen()) {
   ::Info("AliTOFComparison.C","Marking good tracks (will take a while)...");
     if (GoodTracksTOF(dir)) {
        ::Error("AliTOFComparison.C","Can't generate the reference file !");
        return 1;
     }
   }
   refFile=TFile::Open(fname,"old");
   if (!refFile || !refFile->IsOpen()) {
     ::Error("AliTOFComparison.C","Can't open the reference file !");
     return 1;
   }   

   TTree *tofTree=(TTree*)refFile->Get("tofTree");
   if (!tofTree) {
     ::Error("AliTOFComparison.C","Can't get the reference tree !");
     return 2;
   }
   TBranch *branch=tofTree->GetBranch("TOF");
   if (!branch) {
     ::Error("AliTOFComparison.C","Can't get the TOF branch !");
     return 3;
   }
   TClonesArray dummy("AliTrackReference",1000), *refs=&dummy;
   branch->SetAddress(&refs);


   if (gAlice) { 
     delete gAlice->GetRunLoader();
     delete gAlice;//if everything was OK here it is already NULL
     gAlice = 0x0;
   }
   sprintf(fname,"%s/galice.root",dir);
   AliRunLoader *rl = AliRunLoader::Open(fname,"COMPARISON");
   if (rl == 0x0) {
      cerr<<"Can not open session"<<endl;
      return 1;
   }
   AliLoader* tofl = rl->GetLoader("TOFLoader");
   if (tofl == 0x0) {
      cerr<<"Can not get the TOF loader"<<endl;
      return 2;
   }
   tofl->LoadDigits("read");


   sprintf(fname,"%s/AliESDs.root",dir);
   TFile *ef=TFile::Open(fname);
   if ((!ef)||(!ef->IsOpen())) {
      ::Error("AliTOFComparison.C","Can't open AliESDs.root !");
      delete rl;
      return 4;
   }
   AliESD* event = new AliESD;
   TTree* esdTree = (TTree*) ef->Get("esdTree");
   if (!esdTree) {
      ::Error("AliTOFComparison.C", "no ESD tree found");
      return 5;
   }
   esdTree->SetBranchAddress("ESD", &event);


   //******* Loop over events *********
   Int_t e=0;
   while (esdTree->GetEvent(e)) {
     cout<<endl<<endl<<"********* Processing event number: "<<e<<"*******\n";

     rl->GetEvent(e);

     TTree *digTree=tofl->TreeD();
     if (!digTree) {
        cerr<<"Can't get the TOF cluster tree !\n";
        return 3;
     } 
     TBranch *branch=digTree->GetBranch("TOF");
     if (!branch) { 
        cerr<<"Can't get the branch with the TOF digits !\n";
        return 4;
     }
     TClonesArray dummy("AliTOFdigit",10000), *digits=&dummy;   
     branch->SetAddress(&digits);

     digTree->GetEvent(0);
     Int_t nd=digits->GetEntriesFast();
     cerr<<"Number of the TOF digits: "<<nd<<endl;


     Int_t ntrk=event->GetNumberOfTracks();
     cerr<<"Number of ESD tracks : "<<ntrk<<endl; 


     if (tofTree->GetEvent(e++)==0) {
        cerr<<"No reconstructable tracks !\n";
        continue;
     }

     Int_t ngood=refs->GetEntriesFast(); 

     Int_t matched=0;
     Int_t mismatched=0;
     for (Int_t i=0; i<ngood; i++) {
	AliTrackReference *ref=(AliTrackReference*)refs->UncheckedAt(i); 
        Int_t lab=ref->Label();
        Float_t ptg=TMath::Sqrt(ref->Px()*ref->Px() + ref->Py()*ref->Py());

        Double_t tgl=ref->Pz()/ptg; //tan(lambda)

         if (ptg>pmin) { hgood->Fill(ptg); hgoo->Fill(tgl); }

         Int_t j;
	 AliESDtrack *t=0;
         for (j=0; j<ntrk; j++) {
             AliESDtrack *tt=event->GetTrack(j);
             if (lab!=TMath::Abs(tt->GetLabel())) continue;
             t=tt;
             //if ((tt->GetStatus()&AliESDtrack::kTOFpid) == 0) continue;
             if (tt->GetTOFsignal() < 0) continue;
             UInt_t idx=tt->GetTOFcluster();
             if ((Int_t)idx>=nd) {
	       cerr<<"Wrong digit index ! "<<idx<<endl;
               return 5;
             }
             AliTOFdigit *dig=(AliTOFdigit*)digits->UncheckedAt(idx);
             Int_t *label=dig->GetTracks();
             if (label[0]!=lab)
             if (label[1]!=lab)
	       if (label[2]!=lab) {
                 mismatched++; 
                 if (ptg>pmin) { hfake->Fill(ptg); hfak->Fill(tgl); } 
                 break;
               }
             if (ptg>pmin) { hfound->Fill(ptg); hfoun->Fill(tgl); }
             matched++;
             break;
         }
         if (j==ntrk) {
	    cerr<<"Not matched: "<<lab<<"   ";
            if (t) {
               cerr<<(t->GetStatus()&AliESDtrack::kITSout)<<' '
	           <<(t->GetStatus()&AliESDtrack::kTPCout)<<' '
	           <<(t->GetStatus()&AliESDtrack::kTRDout)<<' '
	           <<(t->GetStatus()&AliESDtrack::kTIME);
	    } else cerr<<"No ESD track !";
            cerr<<endl;
         }
     }
     cout<<"Number of good tracks: "<<ngood<<endl;
     cout<<"Number of matched tracks: "<<matched<<endl;
     cout<<"Number of mismatched tracks: "<<mismatched<<endl;

     allgood+=ngood; allmatched+=matched; allmismatched+=mismatched;

     refs->Clear();
   } //***** End of the loop over events

   delete event;
   ef->Close();
   
   delete tofTree;
   refFile->Close();

   if (allgood!=0) cerr<<"\n\nEfficiency: "<<Float_t(allmatched)/allgood<<endl;
   cout<<"Total number of good tracks: "<<allgood<<endl;
   cout<<"Total number of matched tracks: "<<allmatched<<endl;
   cout<<"Total number of mismatched tracks: "<<allmismatched<<endl;

   TCanvas *c1=(TCanvas*)gROOT->FindObject("c1");
   if (!c1) {
      c1=new TCanvas("c1","",0,0,600,900);
      c1->Divide(1,2);
   }
   hfound->Sumw2(); hgood->Sumw2(); hfake->Sumw2();
   hgp->Divide(hfound,hgood,1,1.,"b");
   hfp->Divide(hfake,hgood,1,1.,"b");
   hgp->SetMaximum(1.4);
   hgp->SetYTitle("Matching efficiency");
   hgp->SetXTitle("Pt (GeV/c)");

   hfoun->Sumw2(); hgoo->Sumw2(); hfak->Sumw2();
   hgl->Divide(hfoun,hgoo,1,1.,"b");
   hfl->Divide(hfak,hgoo,1,1.,"b");
   hgl->SetMaximum(1.4);
   hgl->SetYTitle("Matching efficiency");
   hgl->SetXTitle("Tan(lambda)");

   c1->cd(1);

   hgp->Draw();
   hfp->Draw("histsame");
   TLine *line1 = new TLine(pmin,1.0,pmax,1.0); line1->SetLineStyle(4);
   line1->Draw("same");
   TLine *line2 = new TLine(pmin,0.9,pmax,0.9); line2->SetLineStyle(4);
   line2->Draw("same");

   c1->cd(2);

   hgl->Draw();
   hfl->Draw("histsame");
   TLine *line3 = new TLine(-1,1.0,1,1.0); line3->SetLineStyle(4);
   line3->Draw("same");
   TLine *line4 = new TLine(-1,0.9,1,0.9); line4->SetLineStyle(4);
   line4->Draw("same");

   c1->Update();
   
   TFile fc("AliTOFComparison.root","RECREATE");
   c1->Write();
   fc.Close();

   gBenchmark->Stop("AliTOFComparison");
   gBenchmark->Show("AliTOFComparison");

   delete rl;
   return 0;
}

Int_t GoodTracksTOF(const Char_t *dir) {
   if (gAlice) { 
       delete gAlice->GetRunLoader();
       delete gAlice;//if everything was OK here it is already NULL
       gAlice = 0x0;
   }

   Char_t fname[100];
   sprintf(fname,"%s/galice.root",dir);

   AliRunLoader *rl = AliRunLoader::Open(fname,"COMPARISON");
   if (!rl) {
      ::Error("GoodTracksTOF","Can't start session !");
      return 1;
   }

   rl->LoadgAlice();
   rl->LoadHeader();
   rl->LoadKinematics();


   AliLoader* tofl = rl->GetLoader("TOFLoader");
   if (tofl == 0x0) {
      ::Error("GoodTracksTOF","Can not get the TOF loader !");
      delete rl;
      return 2;
   }
   tofl->LoadDigits("read");

   Int_t nev=rl->GetNumberOfEvents();
   ::Info("GoodTracksTOF","Number of events : %d\n",nev);  

   sprintf(fname,"%s/GoodTracksITS.root",dir);
   TFile *itsFile=TFile::Open(fname);
   if ((!itsFile)||(!itsFile->IsOpen())) {
       ::Error("GoodTracksTOF","Can't open the GoodTracksITS.root !");
       delete rl;
       return 5; 
   }
   TClonesArray dum("AliTrackReference",1000), *itsRefs=&dum;
   TTree *itsTree=(TTree*)itsFile->Get("itsTree");
   if (!itsTree) {
       ::Error("GoodTracksTOF","Can't get the ITS reference tree !");
       delete rl;
       return 6;
   }
   TBranch *itsBranch=itsTree->GetBranch("ITS");
   if (!itsBranch) {
      ::Error("GoodTracksTOF","Can't get the ITS reference branch !");
      delete rl;
      return 7;
   }
   itsBranch->SetAddress(&itsRefs);


   sprintf(fname,"%s/GoodTracksTOF.root",dir);
   TFile *tofFile=TFile::Open(fname,"recreate");
   TClonesArray dummy("AliTrackReference",1000), *tofRefs=&dummy;
   TTree tofTree("tofTree","Tree with info about the reconstructable TOF tracks");
   tofTree.Branch("TOF",&tofRefs);


   //********  Loop over generated events 
   for (Int_t e=0; e<nev; e++) {

     rl->GetEvent(e); tofFile->cd();

     Int_t np = rl->GetHeader()->GetNtrack();
     cout<<"Event "<<e<<" Number of particles: "<<np<<endl;

     //******** Fill the "good" masks
     Int_t *good=new Int_t[np]; Int_t k; for (k=0; k<np; k++) good[k]=0;

     TTree *dTree=tofl->TreeD();
     if (!dTree) {
        ::Error("GoodTracksTOF","Can't get the TOF cluster tree !");
        delete rl;
        return 8;
     } 
     TBranch *branch=dTree->GetBranch("TOF");
     if (!branch) { 
        ::Error("GoodTracksTOF","Can't get the branch with the TOF digits !");
        return 9;
     }
     TClonesArray dummy("AliTOFdigit",10000), *digits=&dummy;
     branch->SetAddress(&digits);
   
     dTree->GetEvent(0);
     Int_t nd=digits->GetEntriesFast();

     for (Int_t i=0; i<nd; i++) {
       AliTOFdigit *d=(AliTOFdigit*)digits->UncheckedAt(i);
       Int_t l0=d->GetTrack(0);
          if (l0>=np) {cerr<<"Wrong label: "<<l0<<endl; continue;}
       Int_t l1=d->GetTrack(1);
          if (l1>=np) {cerr<<"Wrong label: "<<l1<<endl; continue;}
       Int_t l2=d->GetTrack(2);
          if (l2>=np) {cerr<<"Wrong label: "<<l2<<endl; continue;}
       if (l0>=0) good[l0]++; 
       if (l1>=0) good[l1]++; 
       if (l2>=0) good[l2]++;
     }
     digits->Clear();


     //****** select tracks which are "good" enough
     AliStack* stack = rl->Stack();

     itsTree->GetEvent(e);
     Int_t nk=itsRefs->GetEntriesFast();

     Int_t nt=0;
     for (k=0; k<nk; k++) {
        AliTrackReference *itsRef=(AliTrackReference *)itsRefs->UncheckedAt(k);
        Int_t lab=itsRef->Label();
        if (good[lab] == 0) continue;
        TParticle *p = (TParticle*)stack->Particle(lab);
        if (p == 0x0) {
           cerr<<"Can not get particle "<<lab<<endl;
           continue;
        }

        if (TMath::Abs(p->Vx())>0.1) continue;
        if (TMath::Abs(p->Vy())>0.1) continue;
        //if (TMath::Abs(p->Vz())>0.1) continue;

        new((*tofRefs)[nt]) AliTrackReference(*itsRef);
        nt++;
     }
     itsRefs->Clear();

     tofTree.Fill();
     tofRefs->Clear();

     delete[] good;

   } //*** end of the loop over generated events

   tofTree.Write();
   tofFile->Close();

   delete itsTree;
   itsFile->Close();

   delete rl;
   return 0;
}
Commit	Line	Data
3f83f224	1	/****************************************************************************
	2	* This macro estimates efficiency of matching with the TOF. *
	3	* TOF "Good" tracks are those originating from the primary vertex, *
	4	* being "good" in the ITS and having at least one digit in the TOF. *
	5	* (To get the list of "good" tracks one should first run *
	6	* AliTPCComparison.C and AliITSComparisonV2.C macros) *
	7	* Origin: I.Belikov, CERN, Jouri.Belikov@cern.ch *
	8	****************************************************************************/
	9
	10	#if !defined(__CINT__) \|\| defined(__MAKECINT__)
4fa1e629	11	#include <TMath.h>
4fa1e629	12	#include <TError.h>
3f83f224	13	#include <Riostream.h>
4fa1e629	14	#include <TH1F.h>
	15	#include <TTree.h>
	16	#include <TParticle.h>
	17	#include <TCanvas.h>
	18	#include <TLine.h>
	19	#include <TText.h>
	20	#include <TBenchmark.h>
	21	#include <TStyle.h>
8b462fd8	22	#include <TFile.h>
4fa1e629	23	#include <TROOT.h>
3f83f224	24
3f83f224	25	#include "AliStack.h"
4fa1e629	26	#include "AliHeader.h"
4fa1e629	27	#include "AliTrackReference.h"
3f83f224	28	#include "AliRunLoader.h"
4fa1e629	29	#include "AliRun.h"
3f83f224	30	#include "AliESD.h"
4fa1e629	31
3f83f224	32	#include "AliTOFdigit.h"
4fa1e629	33	#include "AliLoader.h"
3f83f224	34
3f83f224	35	#include "TClonesArray.h"
3f83f224	36	#endif
3f83f224	37
4fa1e629	38	Int_t GoodTracksTOF(const Char_t *dir=".");
3f83f224	39
3f83f224	40	extern AliRun *gAlice;
4fa1e629	41	extern TBenchmark *gBenchmark;
	42	extern TROOT *gROOT;
	43
	44	static Int_t allgood=0;
	45	static Int_t allmatched=0;
	46	static Int_t allmismatched=0;
	47
	48	Int_t AliTOFComparison(const Char_t *dir=".") {
	49	gBenchmark->Start("AliTOFComparison");
	50
	51	::Info("AliTOFComparison.C","Doing comparison...");
	52
	53
	54	Double_t pmin=0.2;
	55	Double_t pmax=3.0;
	56
	57	TH1F hgood=(TH1F)gROOT->FindObject("hgood");
	58	if (!hgood) hgood=new TH1F("hgood","Good tracks",30,pmin,pmax);
	59
	60	TH1F hfound=(TH1F)gROOT->FindObject("hfound");
	61	if (!hfound) hfound=new TH1F("hfound","Matched tracks",30,pmin,pmax);
	62
	63	TH1F hfake=(TH1F)gROOT->FindObject("hfake");
	64	if (!hfake) hfake=new TH1F("hfake","Mismatched tracks",30,pmin,pmax);
	65
	66	TH1F hgp=(TH1F)gROOT->FindObject("hgp");
	67	if (!hgp) hgp=new TH1F("hgp","",30,pmin,pmax);
	68	hgp->SetLineColor(4); hgp->SetLineWidth(2);
	69
	70	TH1F hfp=(TH1F)gROOT->FindObject("hfp");
	71	if (!hfp) hfp=new TH1F("hfp","Probability of mismatching",30,pmin,pmax);
	72	hfp->SetFillColor(1); hfp->SetFillStyle(3013); hfp->SetLineWidth(2);
	73
	74	TH1F hgoo=(TH1F)gROOT->FindObject("hgoo");
	75	if (!hgoo) hgoo=new TH1F("hgoo","Good tracks",30,-1,1);
	76
	77	TH1F hfoun=(TH1F)gROOT->FindObject("hfoun");
	78	if (!hfoun) hfoun=new TH1F("hfoun","Matched tracks",30,-1,1);
	79
	80	TH1F hfak=(TH1F)gROOT->FindObject("hfak");
	81	if (!hfak) hfak=new TH1F("hfak","Mismatched tracks",30,-1,1);
	82
	83	TH1F hgl=(TH1F)gROOT->FindObject("hgl");
	84	if (!hgl) hgl=new TH1F("hgl","",30,-1,1);
	85	hgl->SetLineColor(4); hgl->SetLineWidth(2);
	86
	87	TH1F hfl=(TH1F)gROOT->FindObject("hfl");
	88	if (!hfl) hfl=new TH1F("hfl","Probability of mismatching",30,-1,1);
	89	hfl->SetFillColor(1); hfl->SetFillStyle(3013); hfl->SetLineWidth(2);
	90
3f83f224	91
3f83f224	92
4fa1e629	93	Char_t fname[100];
	94	sprintf(fname,"%s/GoodTracksTOF.root",dir);
	95
	96	TFile *refFile=TFile::Open(fname,"old");
	97	if (!refFile \|\| !refFile->IsOpen()) {
	98	::Info("AliTOFComparison.C","Marking good tracks (will take a while)...");
	99	if (GoodTracksTOF(dir)) {
	100	::Error("AliTOFComparison.C","Can't generate the reference file !");
	101	return 1;
	102	}
	103	}
	104	refFile=TFile::Open(fname,"old");
	105	if (!refFile \|\| !refFile->IsOpen()) {
	106	::Error("AliTOFComparison.C","Can't open the reference file !");
	107	return 1;
	108	}
	109
	110	TTree tofTree=(TTree)refFile->Get("tofTree");
	111	if (!tofTree) {
	112	::Error("AliTOFComparison.C","Can't get the reference tree !");
	113	return 2;
	114	}
	115	TBranch *branch=tofTree->GetBranch("TOF");
	116	if (!branch) {
	117	::Error("AliTOFComparison.C","Can't get the TOF branch !");
	118	return 3;
	119	}
	120	TClonesArray dummy("AliTrackReference",1000), *refs=&dummy;
	121	branch->SetAddress(&refs);
	122
3f83f224	123
	124	if (gAlice) {
	125	delete gAlice->GetRunLoader();
	126	delete gAlice;//if everything was OK here it is already NULL
	127	gAlice = 0x0;
	128	}
4fa1e629	129	sprintf(fname,"%s/galice.root",dir);
4fa1e629	130	AliRunLoader *rl = AliRunLoader::Open(fname,"COMPARISON");
3f83f224	131	if (rl == 0x0) {
	132	cerr<<"Can not open session"<<endl;
	133	return 1;
	134	}
	135	AliLoader* tofl = rl->GetLoader("TOFLoader");
	136	if (tofl == 0x0) {
	137	cerr<<"Can not get the TOF loader"<<endl;
	138	return 2;
	139	}
	140	tofl->LoadDigits("read");
	141
3f83f224	142
4fa1e629	143	sprintf(fname,"%s/AliESDs.root",dir);
	144	TFile *ef=TFile::Open(fname);
	145	if ((!ef)\|\|(!ef->IsOpen())) {
	146	::Error("AliTOFComparison.C","Can't open AliESDs.root !");
	147	delete rl;
3f83f224	148	return 4;
3f83f224	149	}
8b462fd8	150	AliESD* event = new AliESD;
	151	TTree* esdTree = (TTree*) ef->Get("esdTree");
	152	if (!esdTree) {
	153	::Error("AliTOFComparison.C", "no ESD tree found");
	154	return 5;
	155	}
	156	esdTree->SetBranchAddress("ESD", &event);
3f83f224	157
3f83f224	158
3f83f224	159
4fa1e629	160	//***** Loop over events *******
4fa1e629	161	Int_t e=0;
8b462fd8	162	while (esdTree->GetEvent(e)) {
4fa1e629	163	cout<<endl<<endl<<"******* Processing event number: "<<e<<"*****\n";
4fa1e629	164
8b462fd8	165	rl->GetEvent(e);
4fa1e629	166
	167	TTree *digTree=tofl->TreeD();
	168	if (!digTree) {
	169	cerr<<"Can't get the TOF cluster tree !\n";
	170	return 3;
	171	}
	172	TBranch *branch=digTree->GetBranch("TOF");
	173	if (!branch) {
	174	cerr<<"Can't get the branch with the TOF digits !\n";
	175	return 4;
	176	}
	177	TClonesArray dummy("AliTOFdigit",10000), *digits=&dummy;
	178	branch->SetAddress(&digits);
3f83f224	179
4fa1e629	180	digTree->GetEvent(0);
	181	Int_t nd=digits->GetEntriesFast();
	182	cerr<<"Number of the TOF digits: "<<nd<<endl;
1c3e95d8	183
3f83f224	184
3f83f224	185
3f83f224	186	Int_t ntrk=event->GetNumberOfTracks();
	187	cerr<<"Number of ESD tracks : "<<ntrk<<endl;
	188
4fa1e629	189
	190	if (tofTree->GetEvent(e++)==0) {
	191	cerr<<"No reconstructable tracks !\n";
	192	continue;
	193	}
	194
	195	Int_t ngood=refs->GetEntriesFast();
	196
3f83f224	197	Int_t matched=0;
	198	Int_t mismatched=0;
	199	for (Int_t i=0; i<ngood; i++) {
4fa1e629	200	AliTrackReference ref=(AliTrackReference)refs->UncheckedAt(i);
	201	Int_t lab=ref->Label();
	202	Float_t ptg=TMath::Sqrt(ref->Px()ref->Px() + ref->Py()ref->Py());
3f83f224	203
4fa1e629	204	Double_t tgl=ref->Pz()/ptg; //tan(lambda)
3f83f224	205
	206	if (ptg>pmin) { hgood->Fill(ptg); hgoo->Fill(tgl); }
	207
	208	Int_t j;
	209	AliESDtrack *t=0;
	210	for (j=0; j<ntrk; j++) {
	211	AliESDtrack *tt=event->GetTrack(j);
	212	if (lab!=TMath::Abs(tt->GetLabel())) continue;
	213	t=tt;
	214	//if ((tt->GetStatus()&AliESDtrack::kTOFpid) == 0) continue;
	215	if (tt->GetTOFsignal() < 0) continue;
	216	UInt_t idx=tt->GetTOFcluster();
	217	if ((Int_t)idx>=nd) {
	218	cerr<<"Wrong digit index ! "<<idx<<endl;
	219	return 5;
	220	}
	221	AliTOFdigit dig=(AliTOFdigit)digits->UncheckedAt(idx);
	222	Int_t *label=dig->GetTracks();
	223	if (label[0]!=lab)
	224	if (label[1]!=lab)
	225	if (label[2]!=lab) {
	226	mismatched++;
	227	if (ptg>pmin) { hfake->Fill(ptg); hfak->Fill(tgl); }
	228	break;
	229	}
	230	if (ptg>pmin) { hfound->Fill(ptg); hfoun->Fill(tgl); }
	231	matched++;
	232	break;
	233	}
	234	if (j==ntrk) {
	235	cerr<<"Not matched: "<<lab<<" ";
	236	if (t) {
	237	cerr<<(t->GetStatus()&AliESDtrack::kITSout)<<' '
	238	<<(t->GetStatus()&AliESDtrack::kTPCout)<<' '
	239	<<(t->GetStatus()&AliESDtrack::kTRDout)<<' '
	240	<<(t->GetStatus()&AliESDtrack::kTIME);
	241	} else cerr<<"No ESD track !";
	242	cerr<<endl;
	243	}
	244	}
4fa1e629	245	cout<<"Number of good tracks: "<<ngood<<endl;
	246	cout<<"Number of matched tracks: "<<matched<<endl;
	247	cout<<"Number of mismatched tracks: "<<mismatched<<endl;
3f83f224	248
4fa1e629	249	allgood+=ngood; allmatched+=matched; allmismatched+=mismatched;
	250
	251	refs->Clear();
4fa1e629	252	} //***** End of the loop over events
3f83f224	253
8b462fd8	254	delete event;
4fa1e629	255	ef->Close();
	256
	257	delete tofTree;
	258	refFile->Close();
	259
	260	if (allgood!=0) cerr<<"\n\nEfficiency: "<<Float_t(allmatched)/allgood<<endl;
	261	cout<<"Total number of good tracks: "<<allgood<<endl;
	262	cout<<"Total number of matched tracks: "<<allmatched<<endl;
	263	cout<<"Total number of mismatched tracks: "<<allmismatched<<endl;
	264
	265	TCanvas c1=(TCanvas)gROOT->FindObject("c1");
	266	if (!c1) {
	267	c1=new TCanvas("c1","",0,0,600,900);
	268	c1->Divide(1,2);
	269	}
	270	hfound->Sumw2(); hgood->Sumw2(); hfake->Sumw2();
	271	hgp->Divide(hfound,hgood,1,1.,"b");
	272	hfp->Divide(hfake,hgood,1,1.,"b");
	273	hgp->SetMaximum(1.4);
	274	hgp->SetYTitle("Matching efficiency");
	275	hgp->SetXTitle("Pt (GeV/c)");
	276
	277	hfoun->Sumw2(); hgoo->Sumw2(); hfak->Sumw2();
	278	hgl->Divide(hfoun,hgoo,1,1.,"b");
	279	hfl->Divide(hfak,hgoo,1,1.,"b");
	280	hgl->SetMaximum(1.4);
	281	hgl->SetYTitle("Matching efficiency");
	282	hgl->SetXTitle("Tan(lambda)");
	283
	284	c1->cd(1);
	285
	286	hgp->Draw();
	287	hfp->Draw("histsame");
	288	TLine *line1 = new TLine(pmin,1.0,pmax,1.0); line1->SetLineStyle(4);
	289	line1->Draw("same");
	290	TLine *line2 = new TLine(pmin,0.9,pmax,0.9); line2->SetLineStyle(4);
	291	line2->Draw("same");
	292
	293	c1->cd(2);
	294
	295	hgl->Draw();
	296	hfl->Draw("histsame");
	297	TLine *line3 = new TLine(-1,1.0,1,1.0); line3->SetLineStyle(4);
	298	line3->Draw("same");
	299	TLine *line4 = new TLine(-1,0.9,1,0.9); line4->SetLineStyle(4);
	300	line4->Draw("same");
	301
	302	c1->Update();
	303
3f7a17bb	304	TFile fc("AliTOFComparison.root","RECREATE");
	305	c1->Write();
	306	fc.Close();
	307
4fa1e629	308	gBenchmark->Stop("AliTOFComparison");
	309	gBenchmark->Show("AliTOFComparison");
	310
	311	delete rl;
3f83f224	312	return 0;
	313	}
	314
4fa1e629	315	Int_t GoodTracksTOF(const Char_t *dir) {
	316	if (gAlice) {
	317	delete gAlice->GetRunLoader();
	318	delete gAlice;//if everything was OK here it is already NULL
	319	gAlice = 0x0;
3f83f224	320	}
3f83f224	321
4fa1e629	322	Char_t fname[100];
4fa1e629	323	sprintf(fname,"%s/galice.root",dir);
3f83f224	324
4fa1e629	325	AliRunLoader *rl = AliRunLoader::Open(fname,"COMPARISON");
	326	if (!rl) {
	327	::Error("GoodTracksTOF","Can't start session !");
	328	return 1;
	329	}
3f83f224	330
	331	rl->LoadgAlice();
	332	rl->LoadHeader();
4fa1e629	333	rl->LoadKinematics();
3f83f224	334
3f83f224	335
	336	AliLoader* tofl = rl->GetLoader("TOFLoader");
	337	if (tofl == 0x0) {
4fa1e629	338	::Error("GoodTracksTOF","Can not get the TOF loader !");
	339	delete rl;
	340	return 2;
3f83f224	341	}
	342	tofl->LoadDigits("read");
	343
4fa1e629	344	Int_t nev=rl->GetNumberOfEvents();
4fa1e629	345	::Info("GoodTracksTOF","Number of events : %d\n",nev);
3f83f224	346
4fa1e629	347	sprintf(fname,"%s/GoodTracksITS.root",dir);
	348	TFile *itsFile=TFile::Open(fname);
	349	if ((!itsFile)\|\|(!itsFile->IsOpen())) {
	350	::Error("GoodTracksTOF","Can't open the GoodTracksITS.root !");
	351	delete rl;
	352	return 5;
3f83f224	353	}
4fa1e629	354	TClonesArray dum("AliTrackReference",1000), *itsRefs=&dum;
	355	TTree itsTree=(TTree)itsFile->Get("itsTree");
	356	if (!itsTree) {
	357	::Error("GoodTracksTOF","Can't get the ITS reference tree !");
	358	delete rl;
	359	return 6;
	360	}
	361	TBranch *itsBranch=itsTree->GetBranch("ITS");
	362	if (!itsBranch) {
	363	::Error("GoodTracksTOF","Can't get the ITS reference branch !");
	364	delete rl;
	365	return 7;
	366	}
	367	itsBranch->SetAddress(&itsRefs);
	368
	369
	370	sprintf(fname,"%s/GoodTracksTOF.root",dir);
	371	TFile *tofFile=TFile::Open(fname,"recreate");
	372	TClonesArray dummy("AliTrackReference",1000), *tofRefs=&dummy;
	373	TTree tofTree("tofTree","Tree with info about the reconstructable TOF tracks");
	374	tofTree.Branch("TOF",&tofRefs);
	375
	376
	377	//******** Loop over generated events
	378	for (Int_t e=0; e<nev; e++) {
3f83f224	379
4fa1e629	380	rl->GetEvent(e); tofFile->cd();
	381
	382	Int_t np = rl->GetHeader()->GetNtrack();
	383	cout<<"Event "<<e<<" Number of particles: "<<np<<endl;
	384
	385	//******** Fill the "good" masks
	386	Int_t *good=new Int_t[np]; Int_t k; for (k=0; k<np; k++) good[k]=0;
	387
	388	TTree *dTree=tofl->TreeD();
	389	if (!dTree) {
	390	::Error("GoodTracksTOF","Can't get the TOF cluster tree !");
	391	delete rl;
	392	return 8;
	393	}
	394	TBranch *branch=dTree->GetBranch("TOF");
	395	if (!branch) {
	396	::Error("GoodTracksTOF","Can't get the branch with the TOF digits !");
	397	return 9;
	398	}
	399	TClonesArray dummy("AliTOFdigit",10000), *digits=&dummy;
	400	branch->SetAddress(&digits);
3f83f224	401
4fa1e629	402	dTree->GetEvent(0);
	403	Int_t nd=digits->GetEntriesFast();
	404
	405	for (Int_t i=0; i<nd; i++) {
	406	AliTOFdigit d=(AliTOFdigit)digits->UncheckedAt(i);
	407	Int_t l0=d->GetTrack(0);
	408	if (l0>=np) {cerr<<"Wrong label: "<<l0<<endl; continue;}
	409	Int_t l1=d->GetTrack(1);
	410	if (l1>=np) {cerr<<"Wrong label: "<<l1<<endl; continue;}
	411	Int_t l2=d->GetTrack(2);
	412	if (l2>=np) {cerr<<"Wrong label: "<<l2<<endl; continue;}
	413	if (l0>=0) good[l0]++;
	414	if (l1>=0) good[l1]++;
	415	if (l2>=0) good[l2]++;
	416	}
	417	digits->Clear();
	418
	419
	420	//****** select tracks which are "good" enough
	421	AliStack* stack = rl->Stack();
	422
	423	itsTree->GetEvent(e);
	424	Int_t nk=itsRefs->GetEntriesFast();
	425
	426	Int_t nt=0;
	427	for (k=0; k<nk; k++) {
	428	AliTrackReference itsRef=(AliTrackReference )itsRefs->UncheckedAt(k);
	429	Int_t lab=itsRef->Label();
	430	if (good[lab] == 0) continue;
	431	TParticle p = (TParticle)stack->Particle(lab);
	432	if (p == 0x0) {
	433	cerr<<"Can not get particle "<<lab<<endl;
	434	continue;
	435	}
	436
	437	if (TMath::Abs(p->Vx())>0.1) continue;
	438	if (TMath::Abs(p->Vy())>0.1) continue;
	439	//if (TMath::Abs(p->Vz())>0.1) continue;
	440
	441	new((tofRefs)[nt]) AliTrackReference(itsRef);
	442	nt++;
	443	}
	444	itsRefs->Clear();
	445
	446	tofTree.Fill();
	447	tofRefs->Clear();
	448
	449	delete[] good;
	450
	451	} //*** end of the loop over generated events
	452
	453	tofTree.Write();
	454	tofFile->Close();
	455
	456	delete itsTree;
	457	itsFile->Close();
	458
	459	delete rl;
	460	return 0;
3f83f224	461	}