[u/mrichter/AliRoot.git] / ITS / AliITSComparisonV2.C

/****************************************************************************
 *           Very important, delicate and rather obscure macro.             *
 *                                                                          *
 *               Creates list of "trackable" tracks,                        *
 *             calculates efficiency, resolutions etc.                      *
 *  The ESD tracks must be in an appropriate state (kITSin or kITSrefit)    *
 *                                                                          *
 *           Origin: I.Belikov, CERN, Jouri.Belikov@cern.ch                 *
 ****************************************************************************/

#if !defined(__CINT__) || defined(__MAKECINT__)
  #include <Riostream.h>
  #include <fstream.h>

  #include "AliRun.h"
  #include "AliHeader.h"
  #include "AliStack.h"
  #include "AliRunLoader.h"
  #include "AliLoader.h"
  #include "AliITSLoader.h"
  #include "AliITS.h"
  #include "AliITSgeom.h"
  #include "AliITStrackerV2.h"
  #include "AliITStrackV2.h"
  #include "AliITSclusterV2.h"
  #include "AliMagF.h"
  #include "AliESD.h"

  #include "TFile.h"
  #include "TKey.h"
  #include "TTree.h"
  #include "TH1.h"
  #include "TH2.h"
  #include "TObjArray.h"
  #include "TStyle.h"
  #include "TCanvas.h"
  #include "TLine.h"
  #include "TText.h"
  #include "TParticle.h"
#endif

struct GoodTrackITS {
  Int_t lab;
  Int_t code;
  Float_t px,py,pz;
  Float_t x,y,z;
};

Int_t good_tracks_its(GoodTrackITS *gt, const Int_t max, 
const char* evfoldname = AliConfig::fgkDefaultEventFolderName);

extern AliRun *gAlice;

Int_t AliITSComparisonV2(Float_t ptcutl=0.2, Float_t ptcuth=10.) {
   cerr<<"Doing comparison...\n";
   if (gAlice) {
      delete gAlice->GetRunLoader();
      delete gAlice; 
      gAlice=0;
   }
   
   AliRunLoader *rl = AliRunLoader::Open("galice.root");
   if (!rl) {
       cerr<<"AliITSComparisonV2.C :Can't start sesion !\n";
       return 1;
   }
   rl->LoadgAlice();
   if (rl->GetAliRun())
   AliKalmanTrack::SetConvConst(
     1000/0.299792458/rl->GetAliRun()->Field()->SolenoidField()
   );
   else {
      cerr<<"AliITSComparisonV2.C :Can't get AliRun !\n";
      return 1;
   }
   //rl->UnloadgAlice();
   

   /* Generate a list of "good" tracks */
   const Int_t MAX=15000;
   GoodTrackITS gt[MAX];
   Int_t ngood=0;
   ifstream in("good_tracks_its");
   if (in) {
      cerr<<"Reading good tracks...\n";
      while (in>>gt[ngood].lab>>gt[ngood].code>>
                 gt[ngood].px>>gt[ngood].py>>gt[ngood].pz>>
                 gt[ngood].x >>gt[ngood].y >>gt[ngood].z) {
         ngood++;
	 //PH         cerr<<ngood<<'\r';
         if (ngood==MAX) {
            cerr<<"Too many good tracks !\n";
            break;
         }
      }
      if (!in.eof()) cerr<<"Read error (good_tracks_its) !\n";
   } else {
      cerr<<"Marking good tracks (this will take a while)...\n";
      ngood=good_tracks_its(gt,MAX,AliConfig::fgkDefaultEventFolderName);
      ofstream out("good_tracks_its");
      if (out) {
	for (Int_t ngd=0; ngd<ngood; ngd++)
	  out<<gt[ngd].lab<<' '<<gt[ngd].code<<' '
             <<gt[ngd].px<<' '<<gt[ngd].py<<' '<<gt[ngd].pz<<' '
             <<gt[ngd].x <<' '<<gt[ngd].y <<' '<<gt[ngd].z <<endl;
      } else cerr<<"Can not open file (good_tracks_its) !\n";
      out.close();
   }

   TObjArray tarray(2000);
   { /*Load tracks*/
   TFile *ef=TFile::Open("AliESDs.root");
   if ((!ef)||(!ef->IsOpen())) {
     ef=TFile::Open("AliESDits.root");
     if ((!ef)||(!ef->IsOpen())) {
       ::Fatal("AliITSComparisonV2.C","Can't open AliESDits.root !");
     }
   }
   TKey *key=0;
   TIter next(ef->GetListOfKeys());
   if ((key=(TKey*)next())!=0) {
     AliESD *event=(AliESD*)key->ReadObj();
     Int_t ntrk=event->GetNumberOfTracks();
     for (Int_t i=0; i<ntrk; i++) {
        AliESDtrack *t=event->GetTrack(i);
	UInt_t status=t->GetStatus();
	UInt_t flags=AliESDtrack::kTPCin|AliESDtrack::kITSin;

        if ((status&AliESDtrack::kITSrefit)==0)
	  if ((status&flags)!=flags) continue;

        AliITStrackV2 *iotrack=0;
        iotrack=new AliITStrackV2(*t);
        //if (t->GetConstrainedChi2()>=20) continue;   //  constrained 
        //else iotrack=new AliITStrackV2(*t,kTRUE);    //     track
        if ((status&flags)==flags) {
           iotrack->PropagateTo(3.,0.0028,65.19);
           iotrack->PropagateToVertex();
        }
        tarray.AddLast(iotrack);
     }
     delete event;
   }
   ef->Close();
   }
   Int_t nentr=tarray.GetEntriesFast();

   TH1F *hp=new TH1F("hp","PHI resolution",50,-20.,20.); hp->SetFillColor(4);
   TH1F *hl=new TH1F("hl","LAMBDA resolution",50,-20,20);hl->SetFillColor(4);
   TH1F *hpt=new TH1F("hpt","Relative Pt resolution",30,-10.,10.); 
   hpt->SetFillColor(2); 
   TH1F *hmpt=new TH1F("hmpt","Transverse impact parameter",30,-300,300); 
   hmpt->SetFillColor(6);
   TH1F *hz=new TH1F("hz","Longitudinal impact parameter",30,-300,300); 

   AliITStrackV2 *trk=(AliITStrackV2*)tarray.UncheckedAt(0);
   Double_t pmin=0.1*(100/0.299792458/0.2/trk->GetConvConst());
   Double_t pmax=6.0+pmin;

   TH1F *hgood=new TH1F("hgood","Good tracks",30,pmin,pmax);    
   TH1F *hfound=new TH1F("hfound","Found tracks",30,pmin,pmax);
   TH1F *hfake=new TH1F("hfake","Fake tracks",30,pmin,pmax);
   TH1F *hg=new TH1F("hg","",30,pmin,pmax); //efficiency for good tracks
   hg->SetLineColor(4); hg->SetLineWidth(2);
   TH1F *hf=new TH1F("hf","Efficiency for fake tracks",30,pmin,pmax);
   hf->SetFillColor(1); hf->SetFillStyle(3013); hf->SetLineWidth(2);

   //TH1F *hptw=new TH1F("hptw","Weghted pt",30,pmax,pmin);

   TH1F *he =new TH1F("he","dE/dX for pions with 0.4<p<0.5 GeV/c",50,0.,100.);
   TH2F *hep=new TH2F("hep","dE/dX vs momentum",50,0.,2.,50,0.,200.);
   hep->SetMarkerStyle(8);
   hep->SetMarkerSize(0.4);


   Int_t notf[MAX], nnotf=0;
   Int_t fake[MAX], nfake=0;
   Int_t mult[MAX], numb[MAX], nmult=0;

   Int_t ng;
   for (ng=0; ng<ngood; ng++) {
      Int_t lab=gt[ng].lab, tlab=-1;
      Double_t pxg=gt[ng].px, pyg=gt[ng].py, pzg=gt[ng].pz;
      Double_t ptg=TMath::Sqrt(pxg*pxg+pyg*pyg);
      if (ptg<ptcutl) continue;
      if (ptg>ptcuth) continue;

      if (ptg>pmin) hgood->Fill(ptg);

      AliITStrackV2 *track=0;
      Int_t cnt=0;
      Int_t j;
      for (j=0; j<nentr; j++) {
          AliITStrackV2 *trk=(AliITStrackV2*)tarray.UncheckedAt(j);
          Int_t lbl=trk->GetLabel();
          if (lab==TMath::Abs(lbl)) {
	    if (cnt==0) {track=trk; tlab=lbl;}
            cnt++;
          }
      }
      if (cnt==0) {
        notf[nnotf++]=lab;
        continue;
      } else if (cnt>1){
        mult[nmult]=lab;
        numb[nmult]=cnt; nmult++;        
      }

      if (ptg>pmin) {
        if (lab==tlab) hfound->Fill(ptg);
        else {
          fake[nfake++]=lab;
          hfake->Fill(ptg); 
        }
      }

      Double_t xv,par[5]; track->GetExternalParameters(xv,par);
      Float_t phi=TMath::ASin(par[2]) + track->GetAlpha();
      if (phi<-TMath::Pi()) phi+=2*TMath::Pi();
      if (phi>=TMath::Pi()) phi-=2*TMath::Pi();
      Float_t lam=TMath::ATan(par[3]); 
      Float_t pt_1=TMath::Abs(par[4]);

      Double_t phig=TMath::ATan2(pyg,pxg);
      hp->Fill((phi - phig)*1000.);

      Double_t lamg=TMath::ATan2(pzg,ptg);
      hl->Fill((lam - lamg)*1000.);

      Double_t d=10000*track->GetD();
      hmpt->Fill(d);

      //hptw->Fill(ptg,TMath::Abs(d));

      Double_t z=10000*track->GetZ();
      hz->Fill(z);

      hpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.);

      Float_t mom=1./(pt_1*TMath::Cos(lam));
      Float_t dedx=track->GetdEdx();
      hep->Fill(mom,dedx,1.);
      if (TMath::Abs(gt[ng].code)==211)
         if (mom>0.4 && mom<0.5) he->Fill(dedx,1.);
   }


   cout<<"\nList of Not found tracks :\n";
   for (ng=0; ng<nnotf; ng++){
     cout<<notf[ng]<<"\t";
     if ((ng%9)==8) cout<<"\n";
   }
   cout<<"\n\nList of fake  tracks :\n";
   for (ng=0; ng<nfake; ng++){
     cout<<fake[ng]<<"\t";
     if ((ng%9)==8) cout<<"\n";
   }
   cout<<"\n\nList of multiple found tracks :\n";
   for (ng=0; ng<nmult; ng++) {
       cout<<"id.   "<<mult[ng]
           <<"     found - "<<numb[ng]<<"times\n";
   }
   cout<<endl;

   cerr<<"Number of good tracks : "<<ngood<<endl;
   cerr<<"Number of found tracks : "<<nentr<<endl;

   ng=(Int_t)hgood->GetEntries(); //cerr<<"Good tracks "<<ng<<endl;
   if (ng!=0)  
   cerr<<"Integral efficiency is about "<<hfound->GetEntries()/ng*100.<<" %\n";
   cerr<<endl;

   gStyle->SetOptStat(111110);
   gStyle->SetOptFit(1);

   TCanvas *c1=new TCanvas("c1","",0,0,700,850);

   Int_t minc=33; 

   TPad *p1=new TPad("p1","",0,0.3,.5,.6); p1->Draw();
   p1->cd(); p1->SetFillColor(42); p1->SetFrameFillColor(10); 
   hp->SetFillColor(4);  hp->SetXTitle("(mrad)"); 
   if (hp->GetEntries()<minc) hp->Draw(); else hp->Fit("gaus"); c1->cd();

   TPad *p2=new TPad("p2","",0.5,.3,1,.6); p2->Draw(); 
   p2->cd(); p2->SetFillColor(42); p2->SetFrameFillColor(10);
   hl->SetXTitle("(mrad)");
   if (hl->GetEntries()<minc) hl->Draw(); else hl->Fit("gaus"); c1->cd();

   TPad *p3=new TPad("p3","",0,0,0.5,0.3); p3->Draw();
   p3->cd(); p3->SetFillColor(42); p3->SetFrameFillColor(10); 
   hpt->SetXTitle("(%)");
   if (hpt->GetEntries()<minc) hpt->Draw(); else hpt->Fit("gaus"); c1->cd();

   TPad *p4=new TPad("p4","",0.5,0,1,0.3); p4->Draw();
   p4->cd(); p4->SetFillColor(42); p4->SetFrameFillColor(10);
   hmpt->SetXTitle("(micron)");
   if (hmpt->GetEntries()<minc) hmpt->Draw(); else hmpt->Fit("gaus"); 
   hz->Draw("same"); c1->cd();
   //hfound->Sumw2();
   //hptw->Sumw2(); 
   //hg->SetMaximum(333);
   //hg->SetYTitle("Impact Parameter Resolution (micron)");
   //hg->SetXTitle("Pt (GeV/c)");
   //hg->GetXaxis()->SetRange(0,10);
   //hg->Divide(hptw,hfound,1,1.);
   //hg->DrawCopy(); c1->cd();
   

   TPad *p5=new TPad("p5","",0,0.6,1,1); p5->Draw(); p5->cd(); 
   p5->SetFillColor(41); p5->SetFrameFillColor(10);
   hfound->Sumw2(); hgood->Sumw2(); hfake->Sumw2();
   hg->Divide(hfound,hgood,1,1.,"b");
   hf->Divide(hfake,hgood,1,1.,"b");
   hg->SetMaximum(1.4);
   hg->SetYTitle("Tracking efficiency");
   hg->SetXTitle("Pt (GeV/c)");
   hg->Draw();

   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");

   hf->SetFillColor(1);
   hf->SetFillStyle(3013);
   hf->SetLineColor(2);
   hf->SetLineWidth(2);
   hf->Draw("histsame");
   TText *text = new TText(0.461176,0.248448,"Fake tracks");
   text->SetTextSize(0.05);
   text->Draw();
   text = new TText(0.453919,1.11408,"Good tracks");
   text->SetTextSize(0.05);
   text->Draw();

   TCanvas *c2=new TCanvas("c2","",320,32,530,590);
   TPad *p6=new TPad("p6","",0.,0.,1.,.5); p6->Draw();
   p6->cd(); p6->SetFillColor(42); p6->SetFrameFillColor(10); 
   he->SetFillColor(2); he->SetFillStyle(3005);  
   he->SetXTitle("Arbitrary Units"); 
   if (he->GetEntries()<minc) he->Draw(); else he->Fit("gaus"); c2->cd();

   TPad *p7=new TPad("p7","",0.,0.5,1.,1.); p7->Draw(); 
   p7->cd(); p7->SetFillColor(42); p7->SetFrameFillColor(10);
   hep->SetXTitle("p (Gev/c)"); hep->SetYTitle("dE/dX (Arb. Units)"); 
   hep->Draw(); c1->cd();

   TFile fc("AliITSComparisonV2.root","RECREATE");
   c1->Write();
   c2->Write();
   fc.Close();

   return 0;
}

Int_t good_tracks_its(GoodTrackITS *gt, const Int_t max, const char* evfoldname) {
   AliRunLoader* rl = AliRunLoader::GetRunLoader(evfoldname);
   if (rl == 0x0) {
      ::Fatal("AliITSComparisonV2.C::good_tracks_its",
              "Can not find Run Loader in Folder Named %s",
              evfoldname);
   }

   AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader");
   if (itsl == 0x0) {
       cerr<<"AliITSComparisonV2.C : Can not find ITSLoader\n";
       delete rl;
       return 3;
   }
   
   rl->LoadgAlice();
   rl->LoadHeader();
   Int_t np = rl->GetHeader()->GetNtrack();

   Int_t *good=new Int_t[np];
   Int_t k;
   for (k=0; k<np; k++) good[k]=0;

   AliITS *ITS=(AliITS*)rl->GetAliRun()->GetDetector("ITS");
   if (!ITS) {
      cerr<<"can't get ITS !\n"; exit(8);
   }
   AliITSgeom *geom=ITS->GetITSgeom();
   if (!geom) {
      cerr<<"can't get ITS geometry !\n"; exit(9);
   }

   itsl->LoadRecPoints();
   TTree *cTree=itsl->TreeR();
   if (!cTree) {
      cerr<<"Can't get cTree !\n"; exit(7);
   }
   TBranch *branch=cTree->GetBranch("Clusters");
   if (!branch) {
      cerr<<"Can't get clusters branch !\n"; exit(8);
   }
   TClonesArray *clusters=new TClonesArray("AliITSclusterV2",10000);
   branch->SetAddress(&clusters);

   Int_t entr=(Int_t)cTree->GetEntries();
   for (k=0; k<entr; k++) {
     cTree->GetEvent(k);
     Int_t ncl=clusters->GetEntriesFast(); if (ncl==0) continue;
     Int_t lay,lad,det;  geom->GetModuleId(k,lay,lad,det);
     if (lay<1 || lay>6) {
	cerr<<"wrong layer !\n"; exit(10);
     }
     while (ncl--) {
        AliITSclusterV2 *pnt=(AliITSclusterV2*)clusters->UncheckedAt(ncl);
        Int_t l0=pnt->GetLabel(0);
	  if (l0>=np) {cerr<<"Wrong label: "<<l0<<endl; continue;}
        Int_t l1=pnt->GetLabel(1);
	  if (l1>=np) {cerr<<"Wrong label: "<<l1<<endl; continue;}
        Int_t l2=pnt->GetLabel(2);
	  if (l2>=np) {cerr<<"Wrong label: "<<l2<<endl; continue;}
        Int_t mask=1<<(lay-1);
        if (l0>=0) good[l0]|=mask; 
        if (l1>=0) good[l1]|=mask; 
        if (l2>=0) good[l2]|=mask;
     }
   }
   clusters->Delete(); delete clusters;
   itsl->UnloadRawClusters();
   
   ifstream in("good_tracks_tpc");
   if (!in) {
     cerr<<"can't get good_tracks_tpc !\n"; exit(11);
   }
   
   rl->LoadKinematics();
   AliStack* stack = rl->Stack();
   Int_t nt=0;
   Double_t px,py,pz,x,y,z;
   Int_t code,lab;
   while (in>>lab>>code>>px>>py>>pz>>x>>y>>z) {
      if (good[lab] != 0x3F) continue;
      TParticle *p = (TParticle*)stack->Particle(lab);
      if (p == 0x0) {
         cerr<<"Can not get particle "<<lab<<endl;
         nt++;
         if (nt==max) {cerr<<"Too many good tracks !\n"; break;}
         continue;
      }
      gt[nt].lab=lab;
      gt[nt].code=p->GetPdgCode();
//**** px py pz - in global coordinate system
      gt[nt].px=p->Px(); gt[nt].py=p->Py(); gt[nt].pz=p->Pz();
      gt[nt].x=gt[nt].y=gt[nt].z=0.;
      nt++;
      if (nt==max) {cerr<<"Too many good tracks !\n"; break;}
   }

   delete[] good;

   rl->UnloadKinematics();
   rl->UnloadHeader();
   rl->UnloadgAlice();

   return nt;
}
Commit	Line	Data
c630aafd	1	/****************************************************************************
5102bab6	2	* Very important, delicate and rather obscure macro. *
	3	* *
	4	* Creates list of "trackable" tracks, *
	5	* calculates efficiency, resolutions etc. *
	6	* The ESD tracks must be in an appropriate state (kITSin or kITSrefit) *
	7	* *
c630aafd	8	* Origin: I.Belikov, CERN, Jouri.Belikov@cern.ch *
	9	****************************************************************************/
	10
	11	#if !defined(__CINT__) \|\| defined(__MAKECINT__)
ddae8318	12	#include <Riostream.h>
03248e6d	13	#include <fstream.h>
	14
	15	#include "AliRun.h"
c630aafd	16	#include "AliHeader.h"
c630aafd	17	#include "AliStack.h"
88cb7938	18	#include "AliRunLoader.h"
	19	#include "AliLoader.h"
	20	#include "AliITSLoader.h"
03248e6d	21	#include "AliITS.h"
	22	#include "AliITSgeom.h"
	23	#include "AliITStrackerV2.h"
	24	#include "AliITStrackV2.h"
	25	#include "AliITSclusterV2.h"
88cb7938	26	#include "AliMagF.h"
5102bab6	27	#include "AliESD.h"
03248e6d	28
03248e6d	29	#include "TFile.h"
5102bab6	30	#include "TKey.h"
03248e6d	31	#include "TTree.h"
03248e6d	32	#include "TH1.h"
f2718ade	33	#include "TH2.h"
03248e6d	34	#include "TObjArray.h"
	35	#include "TStyle.h"
	36	#include "TCanvas.h"
	37	#include "TLine.h"
	38	#include "TText.h"
	39	#include "TParticle.h"
	40	#endif
	41
	42	struct GoodTrackITS {
	43	Int_t lab;
	44	Int_t code;
	45	Float_t px,py,pz;
	46	Float_t x,y,z;
	47	};
	48
5102bab6	49	Int_t good_tracks_its(GoodTrackITS *gt, const Int_t max,
	50	const char* evfoldname = AliConfig::fgkDefaultEventFolderName);
	51
c630aafd	52	extern AliRun *gAlice;
c630aafd	53
0aa211b1	54	Int_t AliITSComparisonV2(Float_t ptcutl=0.2, Float_t ptcuth=10.) {
03248e6d	55	cerr<<"Doing comparison...\n";
c630aafd	56	if (gAlice) {
88cb7938	57	delete gAlice->GetRunLoader();
	58	delete gAlice;
	59	gAlice=0;
c630aafd	60	}
88cb7938	61
88cb7938	62	AliRunLoader *rl = AliRunLoader::Open("galice.root");
c630aafd	63	if (!rl) {
88cb7938	64	cerr<<"AliITSComparisonV2.C :Can't start sesion !\n";
88cb7938	65	return 1;
c630aafd	66	}
88cb7938	67	rl->LoadgAlice();
18856a77	68	if (rl->GetAliRun())
5102bab6	69	AliKalmanTrack::SetConvConst(
	70	1000/0.299792458/rl->GetAliRun()->Field()->SolenoidField()
	71	);
c630aafd	72	else {
	73	cerr<<"AliITSComparisonV2.C :Can't get AliRun !\n";
	74	return 1;
	75	}
18856a77	76	//rl->UnloadgAlice();
88cb7938	77
03248e6d	78
03248e6d	79	/* Generate a list of "good" tracks */
5102bab6	80	const Int_t MAX=15000;
03248e6d	81	GoodTrackITS gt[MAX];
	82	Int_t ngood=0;
	83	ifstream in("good_tracks_its");
	84	if (in) {
	85	cerr<<"Reading good tracks...\n";
	86	while (in>>gt[ngood].lab>>gt[ngood].code>>
	87	gt[ngood].px>>gt[ngood].py>>gt[ngood].pz>>
	88	gt[ngood].x >>gt[ngood].y >>gt[ngood].z) {
	89	ngood++;
2d343a94	90	//PH cerr<<ngood<<'\r';
03248e6d	91	if (ngood==MAX) {
	92	cerr<<"Too many good tracks !\n";
	93	break;
	94	}
	95	}
	96	if (!in.eof()) cerr<<"Read error (good_tracks_its) !\n";
	97	} else {
	98	cerr<<"Marking good tracks (this will take a while)...\n";
88cb7938	99	ngood=good_tracks_its(gt,MAX,AliConfig::fgkDefaultEventFolderName);
03248e6d	100	ofstream out("good_tracks_its");
	101	if (out) {
	102	for (Int_t ngd=0; ngd<ngood; ngd++)
	103	out<<gt[ngd].lab<<' '<<gt[ngd].code<<' '
	104	<<gt[ngd].px<<' '<<gt[ngd].py<<' '<<gt[ngd].pz<<' '
	105	<<gt[ngd].x <<' '<<gt[ngd].y <<' '<<gt[ngd].z <<endl;
	106	} else cerr<<"Can not open file (good_tracks_its) !\n";
	107	out.close();
	108	}
03248e6d	109
5102bab6	110	TObjArray tarray(2000);
5102bab6	111	{ /Load tracks/
2d343a94	112	TFile *ef=TFile::Open("AliESDs.root");
5102bab6	113	if ((!ef)\|\|(!ef->IsOpen())) {
bf5f1739	114	ef=TFile::Open("AliESDits.root");
2d343a94	115	if ((!ef)\|\|(!ef->IsOpen())) {
	116	::Fatal("AliITSComparisonV2.C","Can't open AliESDits.root !");
	117	}
5102bab6	118	}
	119	TKey *key=0;
	120	TIter next(ef->GetListOfKeys());
	121	if ((key=(TKey*)next())!=0) {
	122	AliESD event=(AliESD)key->ReadObj();
	123	Int_t ntrk=event->GetNumberOfTracks();
	124	for (Int_t i=0; i<ntrk; i++) {
	125	AliESDtrack *t=event->GetTrack(i);
94774f2b	126	UInt_t status=t->GetStatus();
94774f2b	127	UInt_t flags=AliESDtrack::kTPCin\|AliESDtrack::kITSin;
67c3dcbe	128
94774f2b	129	if ((status&AliESDtrack::kITSrefit)==0)
4ec88b9c	130	if ((status&flags)!=flags) continue;
67c3dcbe	131
	132	AliITStrackV2 *iotrack=0;
	133	iotrack=new AliITStrackV2(*t);
	134	//if (t->GetConstrainedChi2()>=20) continue; // constrained
	135	//else iotrack=new AliITStrackV2(*t,kTRUE); // track
4ec88b9c	136	if ((status&flags)==flags) {
67c3dcbe	137	iotrack->PropagateTo(3.,0.0028,65.19);
	138	iotrack->PropagateToVertex();
	139	}
18856a77	140	tarray.AddLast(iotrack);
18856a77	141	}
5102bab6	142	delete event;
	143	}
	144	ef->Close();
18856a77	145	}
5102bab6	146	Int_t nentr=tarray.GetEntriesFast();
18856a77	147
03248e6d	148	TH1F *hp=new TH1F("hp","PHI resolution",50,-20.,20.); hp->SetFillColor(4);
	149	TH1F *hl=new TH1F("hl","LAMBDA resolution",50,-20,20);hl->SetFillColor(4);
	150	TH1F *hpt=new TH1F("hpt","Relative Pt resolution",30,-10.,10.);
	151	hpt->SetFillColor(2);
	152	TH1F *hmpt=new TH1F("hmpt","Transverse impact parameter",30,-300,300);
	153	hmpt->SetFillColor(6);
	154	TH1F *hz=new TH1F("hz","Longitudinal impact parameter",30,-300,300);
03248e6d	155
	156	AliITStrackV2 trk=(AliITStrackV2)tarray.UncheckedAt(0);
	157	Double_t pmin=0.1*(100/0.299792458/0.2/trk->GetConvConst());
	158	Double_t pmax=6.0+pmin;
	159
	160	TH1F *hgood=new TH1F("hgood","Good tracks",30,pmin,pmax);
	161	TH1F *hfound=new TH1F("hfound","Found tracks",30,pmin,pmax);
	162	TH1F *hfake=new TH1F("hfake","Fake tracks",30,pmin,pmax);
	163	TH1F *hg=new TH1F("hg","",30,pmin,pmax); //efficiency for good tracks
	164	hg->SetLineColor(4); hg->SetLineWidth(2);
	165	TH1F *hf=new TH1F("hf","Efficiency for fake tracks",30,pmin,pmax);
	166	hf->SetFillColor(1); hf->SetFillStyle(3013); hf->SetLineWidth(2);
	167
f2718ade	168	//TH1F *hptw=new TH1F("hptw","Weghted pt",30,pmax,pmin);
	169
	170	TH1F *he =new TH1F("he","dE/dX for pions with 0.4<p<0.5 GeV/c",50,0.,100.);
	171	TH2F *hep=new TH2F("hep","dE/dX vs momentum",50,0.,2.,50,0.,200.);
	172	hep->SetMarkerStyle(8);
	173	hep->SetMarkerSize(0.4);
03248e6d	174
f2718ade	175
	176	Int_t notf[MAX], nnotf=0;
	177	Int_t fake[MAX], nfake=0;
	178	Int_t mult[MAX], numb[MAX], nmult=0;
	179
	180	Int_t ng;
	181	for (ng=0; ng<ngood; ng++) {
	182	Int_t lab=gt[ng].lab, tlab=-1;
	183	Double_t pxg=gt[ng].px, pyg=gt[ng].py, pzg=gt[ng].pz;
03248e6d	184	Double_t ptg=TMath::Sqrt(pxgpxg+pygpyg);
0aa211b1	185	if (ptg<ptcutl) continue;
0aa211b1	186	if (ptg>ptcuth) continue;
03248e6d	187
f2718ade	188	if (ptg>pmin) hgood->Fill(ptg);
03248e6d	189
03248e6d	190	AliITStrackV2 *track=0;
f2718ade	191	Int_t cnt=0;
03248e6d	192	Int_t j;
03248e6d	193	for (j=0; j<nentr; j++) {
f2718ade	194	AliITStrackV2 trk=(AliITStrackV2)tarray.UncheckedAt(j);
	195	Int_t lbl=trk->GetLabel();
	196	if (lab==TMath::Abs(lbl)) {
	197	if (cnt==0) {track=trk; tlab=lbl;}
	198	cnt++;
	199	}
03248e6d	200	}
f2718ade	201	if (cnt==0) {
f2718ade	202	notf[nnotf++]=lab;
03248e6d	203	continue;
f2718ade	204	} else if (cnt>1){
	205	mult[nmult]=lab;
	206	numb[nmult]=cnt; nmult++;
03248e6d	207	}
f2718ade	208
	209	if (ptg>pmin) {
	210	if (lab==tlab) hfound->Fill(ptg);
	211	else {
	212	fake[nfake++]=lab;
	213	hfake->Fill(ptg);
	214	}
	215	}
	216
03248e6d	217	Double_t xv,par[5]; track->GetExternalParameters(xv,par);
	218	Float_t phi=TMath::ASin(par[2]) + track->GetAlpha();
	219	if (phi<-TMath::Pi()) phi+=2*TMath::Pi();
	220	if (phi>=TMath::Pi()) phi-=2*TMath::Pi();
	221	Float_t lam=TMath::ATan(par[3]);
	222	Float_t pt_1=TMath::Abs(par[4]);
	223
	224	Double_t phig=TMath::ATan2(pyg,pxg);
	225	hp->Fill((phi - phig)*1000.);
	226
	227	Double_t lamg=TMath::ATan2(pzg,ptg);
	228	hl->Fill((lam - lamg)*1000.);
	229
	230	Double_t d=10000*track->GetD();
	231	hmpt->Fill(d);
	232
f2718ade	233	//hptw->Fill(ptg,TMath::Abs(d));
03248e6d	234
	235	Double_t z=10000*track->GetZ();
	236	hz->Fill(z);
	237
03248e6d	238	hpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.);
03248e6d	239
f2718ade	240	Float_t mom=1./(pt_1*TMath::Cos(lam));
	241	Float_t dedx=track->GetdEdx();
	242	hep->Fill(mom,dedx,1.);
	243	if (TMath::Abs(gt[ng].code)==211)
	244	if (mom>0.4 && mom<0.5) he->Fill(dedx,1.);
	245	}
	246
	247
	248	cout<<"\nList of Not found tracks :\n";
	249	for (ng=0; ng<nnotf; ng++){
	250	cout<<notf[ng]<<"\t";
	251	if ((ng%9)==8) cout<<"\n";
	252	}
	253	cout<<"\n\nList of fake tracks :\n";
	254	for (ng=0; ng<nfake; ng++){
	255	cout<<fake[ng]<<"\t";
	256	if ((ng%9)==8) cout<<"\n";
	257	}
	258	cout<<"\n\nList of multiple found tracks :\n";
	259	for (ng=0; ng<nmult; ng++) {
	260	cout<<"id. "<<mult[ng]
	261	<<" found - "<<numb[ng]<<"times\n";
03248e6d	262	}
f2718ade	263	cout<<endl;
03248e6d	264
f2718ade	265	cerr<<"Number of good tracks : "<<ngood<<endl;
	266	cerr<<"Number of found tracks : "<<nentr<<endl;
	267
	268	ng=(Int_t)hgood->GetEntries(); //cerr<<"Good tracks "<<ng<<endl;
	269	if (ng!=0)
	270	cerr<<"Integral efficiency is about "<<hfound->GetEntries()/ng*100.<<" %\n";
	271	cerr<<endl;
03248e6d	272
	273	gStyle->SetOptStat(111110);
	274	gStyle->SetOptFit(1);
	275
	276	TCanvas *c1=new TCanvas("c1","",0,0,700,850);
	277
2d343a94	278	Int_t minc=33;
2d343a94	279
03248e6d	280	TPad *p1=new TPad("p1","",0,0.3,.5,.6); p1->Draw();
03248e6d	281	p1->cd(); p1->SetFillColor(42); p1->SetFrameFillColor(10);
2d343a94	282	hp->SetFillColor(4); hp->SetXTitle("(mrad)");
2d343a94	283	if (hp->GetEntries()<minc) hp->Draw(); else hp->Fit("gaus"); c1->cd();
03248e6d	284
	285	TPad *p2=new TPad("p2","",0.5,.3,1,.6); p2->Draw();
	286	p2->cd(); p2->SetFillColor(42); p2->SetFrameFillColor(10);
2d343a94	287	hl->SetXTitle("(mrad)");
2d343a94	288	if (hl->GetEntries()<minc) hl->Draw(); else hl->Fit("gaus"); c1->cd();
03248e6d	289
	290	TPad *p3=new TPad("p3","",0,0,0.5,0.3); p3->Draw();
	291	p3->cd(); p3->SetFillColor(42); p3->SetFrameFillColor(10);
2d343a94	292	hpt->SetXTitle("(%)");
2d343a94	293	if (hpt->GetEntries()<minc) hpt->Draw(); else hpt->Fit("gaus"); c1->cd();
03248e6d	294
	295	TPad *p4=new TPad("p4","",0.5,0,1,0.3); p4->Draw();
	296	p4->cd(); p4->SetFillColor(42); p4->SetFrameFillColor(10);
2d343a94	297	hmpt->SetXTitle("(micron)");
	298	if (hmpt->GetEntries()<minc) hmpt->Draw(); else hmpt->Fit("gaus");
	299	hz->Draw("same"); c1->cd();
03248e6d	300	//hfound->Sumw2();
	301	//hptw->Sumw2();
	302	//hg->SetMaximum(333);
	303	//hg->SetYTitle("Impact Parameter Resolution (micron)");
	304	//hg->SetXTitle("Pt (GeV/c)");
	305	//hg->GetXaxis()->SetRange(0,10);
	306	//hg->Divide(hptw,hfound,1,1.);
	307	//hg->DrawCopy(); c1->cd();
	308
	309
	310	TPad *p5=new TPad("p5","",0,0.6,1,1); p5->Draw(); p5->cd();
	311	p5->SetFillColor(41); p5->SetFrameFillColor(10);
	312	hfound->Sumw2(); hgood->Sumw2(); hfake->Sumw2();
	313	hg->Divide(hfound,hgood,1,1.,"b");
	314	hf->Divide(hfake,hgood,1,1.,"b");
	315	hg->SetMaximum(1.4);
	316	hg->SetYTitle("Tracking efficiency");
	317	hg->SetXTitle("Pt (GeV/c)");
	318	hg->Draw();
	319
	320	TLine *line1 = new TLine(pmin,1.0,pmax,1.0); line1->SetLineStyle(4);
	321	line1->Draw("same");
	322	TLine *line2 = new TLine(pmin,0.9,pmax,0.9); line2->SetLineStyle(4);
	323	line2->Draw("same");
	324
	325	hf->SetFillColor(1);
	326	hf->SetFillStyle(3013);
	327	hf->SetLineColor(2);
	328	hf->SetLineWidth(2);
	329	hf->Draw("histsame");
	330	TText *text = new TText(0.461176,0.248448,"Fake tracks");
	331	text->SetTextSize(0.05);
	332	text->Draw();
	333	text = new TText(0.453919,1.11408,"Good tracks");
	334	text->SetTextSize(0.05);
	335	text->Draw();
	336
c630aafd	337	TCanvas *c2=new TCanvas("c2","",320,32,530,590);
	338	TPad *p6=new TPad("p6","",0.,0.,1.,.5); p6->Draw();
	339	p6->cd(); p6->SetFillColor(42); p6->SetFrameFillColor(10);
	340	he->SetFillColor(2); he->SetFillStyle(3005);
	341	he->SetXTitle("Arbitrary Units");
2d343a94	342	if (he->GetEntries()<minc) he->Draw(); else he->Fit("gaus"); c2->cd();
c630aafd	343
	344	TPad *p7=new TPad("p7","",0.,0.5,1.,1.); p7->Draw();
	345	p7->cd(); p7->SetFillColor(42); p7->SetFrameFillColor(10);
	346	hep->SetXTitle("p (Gev/c)"); hep->SetYTitle("dE/dX (Arb. Units)");
	347	hep->Draw(); c1->cd();
2d343a94	348
	349	TFile fc("AliITSComparisonV2.root","RECREATE");
	350	c1->Write();
	351	c2->Write();
	352	fc.Close();
	353
03248e6d	354	return 0;
	355	}
	356
88cb7938	357	Int_t good_tracks_its(GoodTrackITS gt, const Int_t max, const char evfoldname) {
88cb7938	358	AliRunLoader* rl = AliRunLoader::GetRunLoader(evfoldname);
c630aafd	359	if (rl == 0x0) {
18856a77	360	::Fatal("AliITSComparisonV2.C::good_tracks_its",
88cb7938	361	"Can not find Run Loader in Folder Named %s",
88cb7938	362	evfoldname);
c630aafd	363	}
88cb7938	364
88cb7938	365	AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader");
c630aafd	366	if (itsl == 0x0) {
18856a77	367	cerr<<"AliITSComparisonV2.C : Can not find ITSLoader\n";
88cb7938	368	delete rl;
88cb7938	369	return 3;
c630aafd	370	}
88cb7938	371
	372	rl->LoadgAlice();
	373	rl->LoadHeader();
	374	Int_t np = rl->GetHeader()->GetNtrack();
03248e6d	375
03248e6d	376	Int_t *good=new Int_t[np];
	377	Int_t k;
	378	for (k=0; k<np; k++) good[k]=0;
	379
88cb7938	380	AliITS ITS=(AliITS)rl->GetAliRun()->GetDetector("ITS");
03248e6d	381	if (!ITS) {
	382	cerr<<"can't get ITS !\n"; exit(8);
	383	}
	384	AliITSgeom *geom=ITS->GetITSgeom();
	385	if (!geom) {
	386	cerr<<"can't get ITS geometry !\n"; exit(9);
	387	}
	388
c630aafd	389	itsl->LoadRecPoints();
c630aafd	390	TTree *cTree=itsl->TreeR();
03248e6d	391	if (!cTree) {
	392	cerr<<"Can't get cTree !\n"; exit(7);
	393	}
	394	TBranch *branch=cTree->GetBranch("Clusters");
	395	if (!branch) {
	396	cerr<<"Can't get clusters branch !\n"; exit(8);
	397	}
	398	TClonesArray *clusters=new TClonesArray("AliITSclusterV2",10000);
	399	branch->SetAddress(&clusters);
	400
	401	Int_t entr=(Int_t)cTree->GetEntries();
	402	for (k=0; k<entr; k++) {
	403	cTree->GetEvent(k);
	404	Int_t ncl=clusters->GetEntriesFast(); if (ncl==0) continue;
	405	Int_t lay,lad,det; geom->GetModuleId(k,lay,lad,det);
	406	if (lay<1 \|\| lay>6) {
	407	cerr<<"wrong layer !\n"; exit(10);
	408	}
	409	while (ncl--) {
	410	AliITSclusterV2 pnt=(AliITSclusterV2)clusters->UncheckedAt(ncl);
	411	Int_t l0=pnt->GetLabel(0);
c630aafd	412	if (l0>=np) {cerr<<"Wrong label: "<<l0<<endl; continue;}
03248e6d	413	Int_t l1=pnt->GetLabel(1);
c630aafd	414	if (l1>=np) {cerr<<"Wrong label: "<<l1<<endl; continue;}
03248e6d	415	Int_t l2=pnt->GetLabel(2);
c630aafd	416	if (l2>=np) {cerr<<"Wrong label: "<<l2<<endl; continue;}
03248e6d	417	Int_t mask=1<<(lay-1);
	418	if (l0>=0) good[l0]\|=mask;
	419	if (l1>=0) good[l1]\|=mask;
	420	if (l2>=0) good[l2]\|=mask;
	421	}
	422	}
	423	clusters->Delete(); delete clusters;
88cb7938	424	itsl->UnloadRawClusters();
88cb7938	425
03248e6d	426	ifstream in("good_tracks_tpc");
	427	if (!in) {
	428	cerr<<"can't get good_tracks_tpc !\n"; exit(11);
	429	}
88cb7938	430
	431	rl->LoadKinematics();
	432	AliStack* stack = rl->Stack();
03248e6d	433	Int_t nt=0;
	434	Double_t px,py,pz,x,y,z;
	435	Int_t code,lab;
	436	while (in>>lab>>code>>px>>py>>pz>>x>>y>>z) {
	437	if (good[lab] != 0x3F) continue;
88cb7938	438	TParticle p = (TParticle)stack->Particle(lab);
c630aafd	439	if (p == 0x0) {
88cb7938	440	cerr<<"Can not get particle "<<lab<<endl;
	441	nt++;
	442	if (nt==max) {cerr<<"Too many good tracks !\n"; break;}
	443	continue;
c630aafd	444	}
03248e6d	445	gt[nt].lab=lab;
	446	gt[nt].code=p->GetPdgCode();
	447	//**** px py pz - in global coordinate system
	448	gt[nt].px=p->Px(); gt[nt].py=p->Py(); gt[nt].pz=p->Pz();
	449	gt[nt].x=gt[nt].y=gt[nt].z=0.;
	450	nt++;
	451	if (nt==max) {cerr<<"Too many good tracks !\n"; break;}
	452	}
	453
	454	delete[] good;
	455
88cb7938	456	rl->UnloadKinematics();
	457	rl->UnloadHeader();
	458	rl->UnloadgAlice();
03248e6d	459
	460	return nt;
	461	}
	462
	463