[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 <TKey.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;
   }
   TKey *key=0;
   TIter next(ef->GetListOfKeys());


   //******* Loop over events *********
   Int_t e=0;
   while ((key=(TKey*)next())!=0) {
     cout<<endl<<endl<<"********* Processing event number: "<<e<<"*******\n";

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

     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;


     AliESD *event=(AliESD*)key->ReadObj();
     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();
     delete event;
   } //***** End of the loop over events

   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>
	22	#include <TKey.h>
	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	}
4fa1e629	150	TKey *key=0;
4fa1e629	151	TIter next(ef->GetListOfKeys());
3f83f224	152
3f83f224	153
3f83f224	154
4fa1e629	155	//***** Loop over events *******
	156	Int_t e=0;
	157	while ((key=(TKey*)next())!=0) {
	158	cout<<endl<<endl<<"******* Processing event number: "<<e<<"*****\n";
	159
	160	rl->GetEvent(e); ef->cd();
	161
	162	TTree *digTree=tofl->TreeD();
	163	if (!digTree) {
	164	cerr<<"Can't get the TOF cluster tree !\n";
	165	return 3;
	166	}
	167	TBranch *branch=digTree->GetBranch("TOF");
	168	if (!branch) {
	169	cerr<<"Can't get the branch with the TOF digits !\n";
	170	return 4;
	171	}
	172	TClonesArray dummy("AliTOFdigit",10000), *digits=&dummy;
	173	branch->SetAddress(&digits);
3f83f224	174
4fa1e629	175	digTree->GetEvent(0);
	176	Int_t nd=digits->GetEntriesFast();
	177	cerr<<"Number of the TOF digits: "<<nd<<endl;
1c3e95d8	178
3f83f224	179
3f83f224	180
	181	AliESD event=(AliESD)key->ReadObj();
	182	Int_t ntrk=event->GetNumberOfTracks();
	183	cerr<<"Number of ESD tracks : "<<ntrk<<endl;
	184
4fa1e629	185
	186	if (tofTree->GetEvent(e++)==0) {
	187	cerr<<"No reconstructable tracks !\n";
	188	continue;
	189	}
	190
	191	Int_t ngood=refs->GetEntriesFast();
	192
3f83f224	193	Int_t matched=0;
	194	Int_t mismatched=0;
	195	for (Int_t i=0; i<ngood; i++) {
4fa1e629	196	AliTrackReference ref=(AliTrackReference)refs->UncheckedAt(i);
	197	Int_t lab=ref->Label();
	198	Float_t ptg=TMath::Sqrt(ref->Px()ref->Px() + ref->Py()ref->Py());
3f83f224	199
4fa1e629	200	Double_t tgl=ref->Pz()/ptg; //tan(lambda)
3f83f224	201
	202	if (ptg>pmin) { hgood->Fill(ptg); hgoo->Fill(tgl); }
	203
	204	Int_t j;
	205	AliESDtrack *t=0;
	206	for (j=0; j<ntrk; j++) {
	207	AliESDtrack *tt=event->GetTrack(j);
	208	if (lab!=TMath::Abs(tt->GetLabel())) continue;
	209	t=tt;
	210	//if ((tt->GetStatus()&AliESDtrack::kTOFpid) == 0) continue;
	211	if (tt->GetTOFsignal() < 0) continue;
	212	UInt_t idx=tt->GetTOFcluster();
	213	if ((Int_t)idx>=nd) {
	214	cerr<<"Wrong digit index ! "<<idx<<endl;
	215	return 5;
	216	}
	217	AliTOFdigit dig=(AliTOFdigit)digits->UncheckedAt(idx);
	218	Int_t *label=dig->GetTracks();
	219	if (label[0]!=lab)
	220	if (label[1]!=lab)
	221	if (label[2]!=lab) {
	222	mismatched++;
	223	if (ptg>pmin) { hfake->Fill(ptg); hfak->Fill(tgl); }
	224	break;
	225	}
	226	if (ptg>pmin) { hfound->Fill(ptg); hfoun->Fill(tgl); }
	227	matched++;
	228	break;
	229	}
	230	if (j==ntrk) {
	231	cerr<<"Not matched: "<<lab<<" ";
	232	if (t) {
	233	cerr<<(t->GetStatus()&AliESDtrack::kITSout)<<' '
	234	<<(t->GetStatus()&AliESDtrack::kTPCout)<<' '
	235	<<(t->GetStatus()&AliESDtrack::kTRDout)<<' '
	236	<<(t->GetStatus()&AliESDtrack::kTIME);
	237	} else cerr<<"No ESD track !";
	238	cerr<<endl;
	239	}
	240	}
4fa1e629	241	cout<<"Number of good tracks: "<<ngood<<endl;
	242	cout<<"Number of matched tracks: "<<matched<<endl;
	243	cout<<"Number of mismatched tracks: "<<mismatched<<endl;
3f83f224	244
4fa1e629	245	allgood+=ngood; allmatched+=matched; allmismatched+=mismatched;
	246
	247	refs->Clear();
	248	delete event;
	249	} //***** End of the loop over events
3f83f224	250
4fa1e629	251	ef->Close();
	252
	253	delete tofTree;
	254	refFile->Close();
	255
	256	if (allgood!=0) cerr<<"\n\nEfficiency: "<<Float_t(allmatched)/allgood<<endl;
	257	cout<<"Total number of good tracks: "<<allgood<<endl;
	258	cout<<"Total number of matched tracks: "<<allmatched<<endl;
	259	cout<<"Total number of mismatched tracks: "<<allmismatched<<endl;
	260
	261	TCanvas c1=(TCanvas)gROOT->FindObject("c1");
	262	if (!c1) {
	263	c1=new TCanvas("c1","",0,0,600,900);
	264	c1->Divide(1,2);
	265	}
	266	hfound->Sumw2(); hgood->Sumw2(); hfake->Sumw2();
	267	hgp->Divide(hfound,hgood,1,1.,"b");
	268	hfp->Divide(hfake,hgood,1,1.,"b");
	269	hgp->SetMaximum(1.4);
	270	hgp->SetYTitle("Matching efficiency");
	271	hgp->SetXTitle("Pt (GeV/c)");
	272
	273	hfoun->Sumw2(); hgoo->Sumw2(); hfak->Sumw2();
	274	hgl->Divide(hfoun,hgoo,1,1.,"b");
	275	hfl->Divide(hfak,hgoo,1,1.,"b");
	276	hgl->SetMaximum(1.4);
	277	hgl->SetYTitle("Matching efficiency");
	278	hgl->SetXTitle("Tan(lambda)");
	279
	280	c1->cd(1);
	281
	282	hgp->Draw();
	283	hfp->Draw("histsame");
	284	TLine *line1 = new TLine(pmin,1.0,pmax,1.0); line1->SetLineStyle(4);
	285	line1->Draw("same");
	286	TLine *line2 = new TLine(pmin,0.9,pmax,0.9); line2->SetLineStyle(4);
	287	line2->Draw("same");
	288
	289	c1->cd(2);
	290
	291	hgl->Draw();
	292	hfl->Draw("histsame");
	293	TLine *line3 = new TLine(-1,1.0,1,1.0); line3->SetLineStyle(4);
	294	line3->Draw("same");
	295	TLine *line4 = new TLine(-1,0.9,1,0.9); line4->SetLineStyle(4);
	296	line4->Draw("same");
	297
	298	c1->Update();
	299
3f7a17bb	300	TFile fc("AliTOFComparison.root","RECREATE");
	301	c1->Write();
	302	fc.Close();
	303
4fa1e629	304	gBenchmark->Stop("AliTOFComparison");
	305	gBenchmark->Show("AliTOFComparison");
	306
	307	delete rl;
3f83f224	308	return 0;
	309	}
	310
4fa1e629	311	Int_t GoodTracksTOF(const Char_t *dir) {
	312	if (gAlice) {
	313	delete gAlice->GetRunLoader();
	314	delete gAlice;//if everything was OK here it is already NULL
	315	gAlice = 0x0;
3f83f224	316	}
3f83f224	317
4fa1e629	318	Char_t fname[100];
4fa1e629	319	sprintf(fname,"%s/galice.root",dir);
3f83f224	320
4fa1e629	321	AliRunLoader *rl = AliRunLoader::Open(fname,"COMPARISON");
	322	if (!rl) {
	323	::Error("GoodTracksTOF","Can't start session !");
	324	return 1;
	325	}
3f83f224	326
	327	rl->LoadgAlice();
	328	rl->LoadHeader();
4fa1e629	329	rl->LoadKinematics();
3f83f224	330
3f83f224	331
	332	AliLoader* tofl = rl->GetLoader("TOFLoader");
	333	if (tofl == 0x0) {
4fa1e629	334	::Error("GoodTracksTOF","Can not get the TOF loader !");
	335	delete rl;
	336	return 2;
3f83f224	337	}
	338	tofl->LoadDigits("read");
	339
4fa1e629	340	Int_t nev=rl->GetNumberOfEvents();
4fa1e629	341	::Info("GoodTracksTOF","Number of events : %d\n",nev);
3f83f224	342
4fa1e629	343	sprintf(fname,"%s/GoodTracksITS.root",dir);
	344	TFile *itsFile=TFile::Open(fname);
	345	if ((!itsFile)\|\|(!itsFile->IsOpen())) {
	346	::Error("GoodTracksTOF","Can't open the GoodTracksITS.root !");
	347	delete rl;
	348	return 5;
3f83f224	349	}
4fa1e629	350	TClonesArray dum("AliTrackReference",1000), *itsRefs=&dum;
	351	TTree itsTree=(TTree)itsFile->Get("itsTree");
	352	if (!itsTree) {
	353	::Error("GoodTracksTOF","Can't get the ITS reference tree !");
	354	delete rl;
	355	return 6;
	356	}
	357	TBranch *itsBranch=itsTree->GetBranch("ITS");
	358	if (!itsBranch) {
	359	::Error("GoodTracksTOF","Can't get the ITS reference branch !");
	360	delete rl;
	361	return 7;
	362	}
	363	itsBranch->SetAddress(&itsRefs);
	364
	365
	366	sprintf(fname,"%s/GoodTracksTOF.root",dir);
	367	TFile *tofFile=TFile::Open(fname,"recreate");
	368	TClonesArray dummy("AliTrackReference",1000), *tofRefs=&dummy;
	369	TTree tofTree("tofTree","Tree with info about the reconstructable TOF tracks");
	370	tofTree.Branch("TOF",&tofRefs);
	371
	372
	373	//******** Loop over generated events
	374	for (Int_t e=0; e<nev; e++) {
3f83f224	375
4fa1e629	376	rl->GetEvent(e); tofFile->cd();
	377
	378	Int_t np = rl->GetHeader()->GetNtrack();
	379	cout<<"Event "<<e<<" Number of particles: "<<np<<endl;
	380
	381	//******** Fill the "good" masks
	382	Int_t *good=new Int_t[np]; Int_t k; for (k=0; k<np; k++) good[k]=0;
	383
	384	TTree *dTree=tofl->TreeD();
	385	if (!dTree) {
	386	::Error("GoodTracksTOF","Can't get the TOF cluster tree !");
	387	delete rl;
	388	return 8;
	389	}
	390	TBranch *branch=dTree->GetBranch("TOF");
	391	if (!branch) {
	392	::Error("GoodTracksTOF","Can't get the branch with the TOF digits !");
	393	return 9;
	394	}
	395	TClonesArray dummy("AliTOFdigit",10000), *digits=&dummy;
	396	branch->SetAddress(&digits);
3f83f224	397
4fa1e629	398	dTree->GetEvent(0);
	399	Int_t nd=digits->GetEntriesFast();
	400
	401	for (Int_t i=0; i<nd; i++) {
	402	AliTOFdigit d=(AliTOFdigit)digits->UncheckedAt(i);
	403	Int_t l0=d->GetTrack(0);
	404	if (l0>=np) {cerr<<"Wrong label: "<<l0<<endl; continue;}
	405	Int_t l1=d->GetTrack(1);
	406	if (l1>=np) {cerr<<"Wrong label: "<<l1<<endl; continue;}
	407	Int_t l2=d->GetTrack(2);
	408	if (l2>=np) {cerr<<"Wrong label: "<<l2<<endl; continue;}
	409	if (l0>=0) good[l0]++;
	410	if (l1>=0) good[l1]++;
	411	if (l2>=0) good[l2]++;
	412	}
	413	digits->Clear();
	414
	415
	416	//****** select tracks which are "good" enough
	417	AliStack* stack = rl->Stack();
	418
	419	itsTree->GetEvent(e);
	420	Int_t nk=itsRefs->GetEntriesFast();
	421
	422	Int_t nt=0;
	423	for (k=0; k<nk; k++) {
	424	AliTrackReference itsRef=(AliTrackReference )itsRefs->UncheckedAt(k);
	425	Int_t lab=itsRef->Label();
	426	if (good[lab] == 0) continue;
	427	TParticle p = (TParticle)stack->Particle(lab);
	428	if (p == 0x0) {
	429	cerr<<"Can not get particle "<<lab<<endl;
	430	continue;
	431	}
	432
	433	if (TMath::Abs(p->Vx())>0.1) continue;
	434	if (TMath::Abs(p->Vy())>0.1) continue;
	435	//if (TMath::Abs(p->Vz())>0.1) continue;
	436
	437	new((tofRefs)[nt]) AliTrackReference(itsRef);
	438	nt++;
	439	}
	440	itsRefs->Clear();
	441
	442	tofTree.Fill();
	443	tofRefs->Clear();
	444
	445	delete[] good;
	446
	447	} //*** end of the loop over generated events
	448
	449	tofTree.Write();
	450	tofFile->Close();
	451
	452	delete itsTree;
	453	itsFile->Close();
	454
	455	delete rl;
	456	return 0;
3f83f224	457	}