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

#ifndef __CINT__
  #include <Riostream.h>
  #include <fstream.h>

  #include "AliRun.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 "TFile.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 AliITSComparisonV2(Int_t event=0) {
   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();
    
   AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader");
   if (itsl == 0x0)
     {
       cerr<<"AliITSComparisonV2.C : Can not find TPCLoader\n";
       delete rl;
       return 3;
     }
   
   const Int_t MAX=15000;
   Int_t good_tracks_its(GoodTrackITS *gt, const Int_t max, const char* evfoldname = AliConfig::fgkDefaultEventFolderName);//declaration only

   Int_t nentr=0; TObjArray tarray(2000);
   {/* Load tracks */ 
     itsl->LoadTracks();
     TTree *tracktree=itsl->TreeT();
     if (!tracktree) {cerr<<"Can't get a tree with ITS tracks !\n"; return 4;}
     TBranch *tbranch=tracktree->GetBranch("tracks");
     nentr=(Int_t)tracktree->GetEntries();

     for (Int_t i=0; i<nentr; i++) {
        AliITStrackV2 *iotrack=new AliITStrackV2;
        tbranch->SetAddress(&iotrack);
        tracktree->GetEvent(i);
        tarray.AddLast(iotrack);
     }
     itsl->UnloadTracks();
   }

   /* Generate a list of "good" tracks */
   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++;
         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();
   }

   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>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); 
        }
      }

      track->PropagateTo(3.,0.0028,65.19);
      track->PropagateToVertex();

      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);

   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)"); 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)"); 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("(%)"); 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)"); 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();

//     PH taken from v3-09-09, but not used
//    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"); 
//    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();
   

   return 0;
}

Int_t good_tracks_its(GoodTrackITS *gt, const Int_t max, const char* evfoldname) {

   Int_t nt=0;

   AliRunLoader* rl = AliRunLoader::GetRunLoader(evfoldname);
   if (rl == 0x0)
    {
      ::Fatal("AliTPCComparison.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 TPCLoader\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->LoadRawClusters();
   TTree *cTree=itsl->TreeC();
   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);
        Int_t l1=pnt->GetLabel(1);
        Int_t l2=pnt->GetLabel(2);
        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
03248e6d	1	#ifndef __CINT__
ddae8318	2	#include <Riostream.h>
03248e6d	3	#include <fstream.h>
	4
	5	#include "AliRun.h"
88cb7938	6	#include "AliRunLoader.h"
	7	#include "AliLoader.h"
	8	#include "AliITSLoader.h"
03248e6d	9	#include "AliITS.h"
	10	#include "AliITSgeom.h"
	11	#include "AliITStrackerV2.h"
	12	#include "AliITStrackV2.h"
	13	#include "AliITSclusterV2.h"
88cb7938	14	#include "AliMagF.h"
03248e6d	15
	16	#include "TFile.h"
	17	#include "TTree.h"
	18	#include "TH1.h"
f2718ade	19	#include "TH2.h"
03248e6d	20	#include "TObjArray.h"
	21	#include "TStyle.h"
	22	#include "TCanvas.h"
	23	#include "TLine.h"
	24	#include "TText.h"
	25	#include "TParticle.h"
	26	#endif
	27
	28	struct GoodTrackITS {
	29	Int_t lab;
	30	Int_t code;
	31	Float_t px,py,pz;
	32	Float_t x,y,z;
	33	};
	34
	35	Int_t AliITSComparisonV2(Int_t event=0) {
	36	cerr<<"Doing comparison...\n";
88cb7938	37	if (gAlice)
	38	{
	39	delete gAlice->GetRunLoader();
	40	delete gAlice;
	41	gAlice=0;
	42	}
	43
	44	AliRunLoader *rl = AliRunLoader::Open("galice.root");
	45	if (!rl)
	46	{
	47	cerr<<"AliITSComparisonV2.C :Can't start sesion !\n";
	48	return 1;
	49	}
	50	rl->LoadgAlice();
	51	if (rl->GetAliRun())
	52	AliKalmanTrack::SetConvConst(1000/0.299792458/rl->GetAliRun()->Field()->SolenoidField());
	53	else
	54	{
	55	cerr<<"AliITSComparisonV2.C :Can't get AliRun !\n";
	56	return 1;
	57	}
	58	rl->UnloadgAlice();
	59
	60	AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader");
	61	if (itsl == 0x0)
	62	{
	63	cerr<<"AliITSComparisonV2.C : Can not find TPCLoader\n";
	64	delete rl;
	65	return 3;
	66	}
	67
03248e6d	68	const Int_t MAX=15000;
88cb7938	69	Int_t good_tracks_its(GoodTrackITS gt, const Int_t max, const char evfoldname = AliConfig::fgkDefaultEventFolderName);//declaration only
03248e6d	70
	71	Int_t nentr=0; TObjArray tarray(2000);
	72	{/* Load tracks */
88cb7938	73	itsl->LoadTracks();
88cb7938	74	TTree *tracktree=itsl->TreeT();
03248e6d	75	if (!tracktree) {cerr<<"Can't get a tree with ITS tracks !\n"; return 4;}
	76	TBranch *tbranch=tracktree->GetBranch("tracks");
	77	nentr=(Int_t)tracktree->GetEntries();
f2718ade	78
03248e6d	79	for (Int_t i=0; i<nentr; i++) {
	80	AliITStrackV2 *iotrack=new AliITStrackV2;
	81	tbranch->SetAddress(&iotrack);
	82	tracktree->GetEvent(i);
	83	tarray.AddLast(iotrack);
03248e6d	84	}
88cb7938	85	itsl->UnloadTracks();
03248e6d	86	}
	87
	88	/* Generate a list of "good" tracks */
	89	GoodTrackITS gt[MAX];
	90	Int_t ngood=0;
	91	ifstream in("good_tracks_its");
	92	if (in) {
	93	cerr<<"Reading good tracks...\n";
	94	while (in>>gt[ngood].lab>>gt[ngood].code>>
	95	gt[ngood].px>>gt[ngood].py>>gt[ngood].pz>>
	96	gt[ngood].x >>gt[ngood].y >>gt[ngood].z) {
	97	ngood++;
	98	cerr<<ngood<<'\r';
	99	if (ngood==MAX) {
	100	cerr<<"Too many good tracks !\n";
	101	break;
	102	}
	103	}
	104	if (!in.eof()) cerr<<"Read error (good_tracks_its) !\n";
	105	} else {
	106	cerr<<"Marking good tracks (this will take a while)...\n";
88cb7938	107	ngood=good_tracks_its(gt,MAX,AliConfig::fgkDefaultEventFolderName);
03248e6d	108	ofstream out("good_tracks_its");
	109	if (out) {
	110	for (Int_t ngd=0; ngd<ngood; ngd++)
	111	out<<gt[ngd].lab<<' '<<gt[ngd].code<<' '
	112	<<gt[ngd].px<<' '<<gt[ngd].py<<' '<<gt[ngd].pz<<' '
	113	<<gt[ngd].x <<' '<<gt[ngd].y <<' '<<gt[ngd].z <<endl;
	114	} else cerr<<"Can not open file (good_tracks_its) !\n";
	115	out.close();
	116	}
03248e6d	117
	118	TH1F *hp=new TH1F("hp","PHI resolution",50,-20.,20.); hp->SetFillColor(4);
	119	TH1F *hl=new TH1F("hl","LAMBDA resolution",50,-20,20);hl->SetFillColor(4);
	120	TH1F *hpt=new TH1F("hpt","Relative Pt resolution",30,-10.,10.);
	121	hpt->SetFillColor(2);
	122	TH1F *hmpt=new TH1F("hmpt","Transverse impact parameter",30,-300,300);
	123	hmpt->SetFillColor(6);
	124	TH1F *hz=new TH1F("hz","Longitudinal impact parameter",30,-300,300);
03248e6d	125
	126	AliITStrackV2 trk=(AliITStrackV2)tarray.UncheckedAt(0);
	127	Double_t pmin=0.1*(100/0.299792458/0.2/trk->GetConvConst());
	128	Double_t pmax=6.0+pmin;
	129
	130	TH1F *hgood=new TH1F("hgood","Good tracks",30,pmin,pmax);
	131	TH1F *hfound=new TH1F("hfound","Found tracks",30,pmin,pmax);
	132	TH1F *hfake=new TH1F("hfake","Fake tracks",30,pmin,pmax);
	133	TH1F *hg=new TH1F("hg","",30,pmin,pmax); //efficiency for good tracks
	134	hg->SetLineColor(4); hg->SetLineWidth(2);
	135	TH1F *hf=new TH1F("hf","Efficiency for fake tracks",30,pmin,pmax);
	136	hf->SetFillColor(1); hf->SetFillStyle(3013); hf->SetLineWidth(2);
	137
f2718ade	138	//TH1F *hptw=new TH1F("hptw","Weghted pt",30,pmax,pmin);
	139
	140	TH1F *he =new TH1F("he","dE/dX for pions with 0.4<p<0.5 GeV/c",50,0.,100.);
	141	TH2F *hep=new TH2F("hep","dE/dX vs momentum",50,0.,2.,50,0.,200.);
	142	hep->SetMarkerStyle(8);
	143	hep->SetMarkerSize(0.4);
03248e6d	144
f2718ade	145
	146	Int_t notf[MAX], nnotf=0;
	147	Int_t fake[MAX], nfake=0;
	148	Int_t mult[MAX], numb[MAX], nmult=0;
	149
	150	Int_t ng;
	151	for (ng=0; ng<ngood; ng++) {
	152	Int_t lab=gt[ng].lab, tlab=-1;
	153	Double_t pxg=gt[ng].px, pyg=gt[ng].py, pzg=gt[ng].pz;
03248e6d	154	Double_t ptg=TMath::Sqrt(pxgpxg+pygpyg);
03248e6d	155
03248e6d	156
f2718ade	157	if (ptg>pmin) hgood->Fill(ptg);
03248e6d	158
03248e6d	159	AliITStrackV2 *track=0;
f2718ade	160	Int_t cnt=0;
03248e6d	161	Int_t j;
03248e6d	162	for (j=0; j<nentr; j++) {
f2718ade	163	AliITStrackV2 trk=(AliITStrackV2)tarray.UncheckedAt(j);
	164	Int_t lbl=trk->GetLabel();
	165	if (lab==TMath::Abs(lbl)) {
	166	if (cnt==0) {track=trk; tlab=lbl;}
	167	cnt++;
	168	}
03248e6d	169	}
f2718ade	170	if (cnt==0) {
f2718ade	171	notf[nnotf++]=lab;
03248e6d	172	continue;
f2718ade	173	} else if (cnt>1){
	174	mult[nmult]=lab;
	175	numb[nmult]=cnt; nmult++;
03248e6d	176	}
f2718ade	177
	178	if (ptg>pmin) {
	179	if (lab==tlab) hfound->Fill(ptg);
	180	else {
	181	fake[nfake++]=lab;
	182	hfake->Fill(ptg);
	183	}
	184	}
	185
03248e6d	186	track->PropagateTo(3.,0.0028,65.19);
	187	track->PropagateToVertex();
	188
03248e6d	189	Double_t xv,par[5]; track->GetExternalParameters(xv,par);
	190	Float_t phi=TMath::ASin(par[2]) + track->GetAlpha();
	191	if (phi<-TMath::Pi()) phi+=2*TMath::Pi();
	192	if (phi>=TMath::Pi()) phi-=2*TMath::Pi();
	193	Float_t lam=TMath::ATan(par[3]);
	194	Float_t pt_1=TMath::Abs(par[4]);
	195
	196	Double_t phig=TMath::ATan2(pyg,pxg);
	197	hp->Fill((phi - phig)*1000.);
	198
	199	Double_t lamg=TMath::ATan2(pzg,ptg);
	200	hl->Fill((lam - lamg)*1000.);
	201
	202	Double_t d=10000*track->GetD();
	203	hmpt->Fill(d);
	204
f2718ade	205	//hptw->Fill(ptg,TMath::Abs(d));
03248e6d	206
	207	Double_t z=10000*track->GetZ();
	208	hz->Fill(z);
	209
03248e6d	210	hpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.);
03248e6d	211
f2718ade	212	Float_t mom=1./(pt_1*TMath::Cos(lam));
	213	Float_t dedx=track->GetdEdx();
	214	hep->Fill(mom,dedx,1.);
	215	if (TMath::Abs(gt[ng].code)==211)
	216	if (mom>0.4 && mom<0.5) he->Fill(dedx,1.);
	217	}
	218
	219
	220	cout<<"\nList of Not found tracks :\n";
	221	for (ng=0; ng<nnotf; ng++){
	222	cout<<notf[ng]<<"\t";
	223	if ((ng%9)==8) cout<<"\n";
	224	}
	225	cout<<"\n\nList of fake tracks :\n";
	226	for (ng=0; ng<nfake; ng++){
	227	cout<<fake[ng]<<"\t";
	228	if ((ng%9)==8) cout<<"\n";
	229	}
	230	cout<<"\n\nList of multiple found tracks :\n";
	231	for (ng=0; ng<nmult; ng++) {
	232	cout<<"id. "<<mult[ng]
	233	<<" found - "<<numb[ng]<<"times\n";
03248e6d	234	}
f2718ade	235	cout<<endl;
03248e6d	236
f2718ade	237	cerr<<"Number of good tracks : "<<ngood<<endl;
	238	cerr<<"Number of found tracks : "<<nentr<<endl;
	239
	240	ng=(Int_t)hgood->GetEntries(); //cerr<<"Good tracks "<<ng<<endl;
	241	if (ng!=0)
	242	cerr<<"Integral efficiency is about "<<hfound->GetEntries()/ng*100.<<" %\n";
	243	cerr<<endl;
03248e6d	244
	245	gStyle->SetOptStat(111110);
	246	gStyle->SetOptFit(1);
	247
	248	TCanvas *c1=new TCanvas("c1","",0,0,700,850);
	249
	250	TPad *p1=new TPad("p1","",0,0.3,.5,.6); p1->Draw();
	251	p1->cd(); p1->SetFillColor(42); p1->SetFrameFillColor(10);
	252	hp->SetFillColor(4); hp->SetXTitle("(mrad)"); hp->Fit("gaus"); c1->cd();
	253
	254	TPad *p2=new TPad("p2","",0.5,.3,1,.6); p2->Draw();
	255	p2->cd(); p2->SetFillColor(42); p2->SetFrameFillColor(10);
	256	hl->SetXTitle("(mrad)"); hl->Fit("gaus"); c1->cd();
	257
	258	TPad *p3=new TPad("p3","",0,0,0.5,0.3); p3->Draw();
	259	p3->cd(); p3->SetFillColor(42); p3->SetFrameFillColor(10);
	260	hpt->SetXTitle("(%)"); hpt->Fit("gaus"); c1->cd();
	261
	262	TPad *p4=new TPad("p4","",0.5,0,1,0.3); p4->Draw();
	263	p4->cd(); p4->SetFillColor(42); p4->SetFrameFillColor(10);
	264	hmpt->SetXTitle("(micron)"); hmpt->Fit("gaus"); hz->Draw("same"); c1->cd();
	265	//hfound->Sumw2();
	266	//hptw->Sumw2();
	267	//hg->SetMaximum(333);
	268	//hg->SetYTitle("Impact Parameter Resolution (micron)");
	269	//hg->SetXTitle("Pt (GeV/c)");
	270	//hg->GetXaxis()->SetRange(0,10);
	271	//hg->Divide(hptw,hfound,1,1.);
	272	//hg->DrawCopy(); c1->cd();
	273
	274
	275	TPad *p5=new TPad("p5","",0,0.6,1,1); p5->Draw(); p5->cd();
	276	p5->SetFillColor(41); p5->SetFrameFillColor(10);
	277	hfound->Sumw2(); hgood->Sumw2(); hfake->Sumw2();
	278	hg->Divide(hfound,hgood,1,1.,"b");
	279	hf->Divide(hfake,hgood,1,1.,"b");
	280	hg->SetMaximum(1.4);
	281	hg->SetYTitle("Tracking efficiency");
	282	hg->SetXTitle("Pt (GeV/c)");
	283	hg->Draw();
	284
	285	TLine *line1 = new TLine(pmin,1.0,pmax,1.0); line1->SetLineStyle(4);
	286	line1->Draw("same");
	287	TLine *line2 = new TLine(pmin,0.9,pmax,0.9); line2->SetLineStyle(4);
	288	line2->Draw("same");
	289
	290	hf->SetFillColor(1);
	291	hf->SetFillStyle(3013);
	292	hf->SetLineColor(2);
	293	hf->SetLineWidth(2);
	294	hf->Draw("histsame");
	295	TText *text = new TText(0.461176,0.248448,"Fake tracks");
	296	text->SetTextSize(0.05);
	297	text->Draw();
	298	text = new TText(0.453919,1.11408,"Good tracks");
	299	text->SetTextSize(0.05);
	300	text->Draw();
	301
88cb7938	302	// PH taken from v3-09-09, but not used
88cb7938	303	// TCanvas *c2=new TCanvas("c2","",320,32,530,590);
f2718ade	304
88cb7938	305	// TPad *p6=new TPad("p6","",0.,0.,1.,.5); p6->Draw();
	306	// p6->cd(); p6->SetFillColor(42); p6->SetFrameFillColor(10);
	307	// he->SetFillColor(2); he->SetFillStyle(3005);
	308	// he->SetXTitle("Arbitrary Units");
	309	// he->Fit("gaus"); c2->cd();
f2718ade	310
88cb7938	311	// TPad *p7=new TPad("p7","",0.,0.5,1.,1.); p7->Draw();
	312	// p7->cd(); p7->SetFillColor(42); p7->SetFrameFillColor(10);
	313	// hep->SetXTitle("p (Gev/c)"); hep->SetYTitle("dE/dX (Arb. Units)");
	314	// hep->Draw(); c1->cd();
	315
f2718ade	316
03248e6d	317	return 0;
	318	}
	319
88cb7938	320	Int_t good_tracks_its(GoodTrackITS gt, const Int_t max, const char evfoldname) {
	321
	322	Int_t nt=0;
	323
	324	AliRunLoader* rl = AliRunLoader::GetRunLoader(evfoldname);
	325	if (rl == 0x0)
	326	{
	327	::Fatal("AliTPCComparison.C::good_tracks_its",
	328	"Can not find Run Loader in Folder Named %s",
	329	evfoldname);
	330	}
	331
	332	AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader");
	333	if (itsl == 0x0)
	334	{
	335	cerr<<"AliITSComparisonV2.C : Can not find TPCLoader\n";
	336	delete rl;
	337	return 3;
	338	}
	339
	340	rl->LoadgAlice();
	341	rl->LoadHeader();
	342	Int_t np = rl->GetHeader()->GetNtrack();
03248e6d	343
03248e6d	344
03248e6d	345
	346	Int_t *good=new Int_t[np];
	347	Int_t k;
	348	for (k=0; k<np; k++) good[k]=0;
	349
88cb7938	350	AliITS ITS=(AliITS)rl->GetAliRun()->GetDetector("ITS");
03248e6d	351	if (!ITS) {
	352	cerr<<"can't get ITS !\n"; exit(8);
	353	}
	354	AliITSgeom *geom=ITS->GetITSgeom();
	355	if (!geom) {
	356	cerr<<"can't get ITS geometry !\n"; exit(9);
	357	}
	358
88cb7938	359	itsl->LoadRawClusters();
88cb7938	360	TTree *cTree=itsl->TreeC();
03248e6d	361	if (!cTree) {
	362	cerr<<"Can't get cTree !\n"; exit(7);
	363	}
	364	TBranch *branch=cTree->GetBranch("Clusters");
	365	if (!branch) {
	366	cerr<<"Can't get clusters branch !\n"; exit(8);
	367	}
	368	TClonesArray *clusters=new TClonesArray("AliITSclusterV2",10000);
	369	branch->SetAddress(&clusters);
	370
	371	Int_t entr=(Int_t)cTree->GetEntries();
	372	for (k=0; k<entr; k++) {
	373	cTree->GetEvent(k);
	374	Int_t ncl=clusters->GetEntriesFast(); if (ncl==0) continue;
	375	Int_t lay,lad,det; geom->GetModuleId(k,lay,lad,det);
	376	if (lay<1 \|\| lay>6) {
	377	cerr<<"wrong layer !\n"; exit(10);
	378	}
	379	while (ncl--) {
	380	AliITSclusterV2 pnt=(AliITSclusterV2)clusters->UncheckedAt(ncl);
	381	Int_t l0=pnt->GetLabel(0);
	382	Int_t l1=pnt->GetLabel(1);
	383	Int_t l2=pnt->GetLabel(2);
	384	Int_t mask=1<<(lay-1);
	385	if (l0>=0) good[l0]\|=mask;
	386	if (l1>=0) good[l1]\|=mask;
	387	if (l2>=0) good[l2]\|=mask;
	388	}
	389	}
	390	clusters->Delete(); delete clusters;
88cb7938	391	itsl->UnloadRawClusters();
88cb7938	392
03248e6d	393	ifstream in("good_tracks_tpc");
	394	if (!in) {
	395	cerr<<"can't get good_tracks_tpc !\n"; exit(11);
	396	}
88cb7938	397
	398	rl->LoadKinematics();
	399	AliStack* stack = rl->Stack();
03248e6d	400	Int_t nt=0;
	401	Double_t px,py,pz,x,y,z;
	402	Int_t code,lab;
	403	while (in>>lab>>code>>px>>py>>pz>>x>>y>>z) {
	404	if (good[lab] != 0x3F) continue;
88cb7938	405	TParticle p = (TParticle)stack->Particle(lab);
	406	if (p == 0x0)
	407	{
	408	cerr<<"Can not get particle "<<lab<<endl;
	409	nt++;
	410	if (nt==max) {cerr<<"Too many good tracks !\n"; break;}
	411	continue;
	412	}
03248e6d	413	gt[nt].lab=lab;
	414	gt[nt].code=p->GetPdgCode();
	415	//**** px py pz - in global coordinate system
	416	gt[nt].px=p->Px(); gt[nt].py=p->Py(); gt[nt].pz=p->Pz();
	417	gt[nt].x=gt[nt].y=gt[nt].z=0.;
	418	nt++;
	419	if (nt==max) {cerr<<"Too many good tracks !\n"; break;}
	420	}
	421
	422	delete[] good;
	423
88cb7938	424	rl->UnloadKinematics();
	425	rl->UnloadHeader();
	426	rl->UnloadgAlice();
03248e6d	427
	428	return nt;
	429	}
	430
	431