[u/mrichter/AliRoot.git] / TPC / AliTPCComparison.C

#ifndef __CINT__
  #include "alles.h"
  #include "AliTPCtracker.h"
#endif

struct GoodTrack {
  Int_t fEventN; //event number
  Int_t lab;
  Int_t code;
  Float_t px,py,pz;
  Float_t x,y,z;
};
Int_t good_tracks(GoodTrack *gt, Int_t max, Int_t eventn=1);

Int_t AliTPCComparison(Int_t eventn=1) {
   cerr<<"Doing comparison...\n";
   Int_t i;
   gBenchmark->Start("AliTPCComparison");

   TFile *cf=TFile::Open("AliTPCclusters.root");
   if (!cf->IsOpen()) {cerr<<"Can't open AliTPCclusters.root !\n"; return 1;}
   AliTPCParam *digp= (AliTPCParam*)cf->Get("75x40_100x60");
   if (!digp) { cerr<<"TPC parameters have not been found !\n"; return 2; }


   ///////////
   AliTPCtracker *tracker =0; 
   TObjArray tarray(2000);
   AliTPCtrack *iotrack=0;
   Int_t nentr= 0;
   Int_t eventptr[1000];
   TFile *tf=TFile::Open("AliTPCtracks.root");
   TTree *tracktree=0;
   // Load clusters
   eventptr[0]=0;
   eventptr[1]=0;
   for (Int_t event=0;event<eventn; event++){
     cf->cd();
     tracker = new AliTPCtracker(digp,event);
     tracker->LoadInnerSectors();
     tracker->LoadOuterSectors();
     char   tname[100];
     if (eventn==-1) {
       sprintf(tname,"TreeT_TPC");
     }
     else {
       sprintf(tname,"TreeT_TPC_%d",event);
     }

     // Load tracks
     if (!tf->IsOpen()) {cerr<<"Can't open AliTPCtracks.root !\n"; return 3;}
     tracktree=(TTree*)tf->Get(tname);
     if (!tracktree) {cerr<<"Can't get a tree with TPC tracks !\n"; return 4;}
     TBranch *tbranch=tracktree->GetBranch("tracks");
     Int_t nentr0=(Int_t)tracktree->GetEntries();
     nentr+=nentr0;
     for (i=0; i<nentr0; i++) {
       iotrack=new AliTPCtrack;
       tbranch->SetAddress(&iotrack);
       tracktree->GetEvent(i);
       tracker->CookLabel(iotrack,0.1);
       tarray.AddLast(iotrack);
     }   
     eventptr[event+1] = nentr;  //store end of the event
     delete tracker;
   }
   tf->Close();
   cf->Close();
  
   //MI change for a moment


/////////////////////////////////////////////////////////////////////////
   //   GoodTrack gt[15000];
   GoodTrack gt[45000];

   Int_t ngood=0;
   ifstream in("good_tracks_tpc");
   if (in) {
      cerr<<"Reading good tracks...\n";
      while (in>>gt[ngood].fEventN>>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==45000) {
            cerr<<"Too many good tracks !\n";
            break;
         }
      }
      if (!in.eof()) cerr<<"Read error (good_tracks_tpc) !\n";
   } else {
      cerr<<"Marking good tracks (this will take a while)...\n";
      ngood=good_tracks(gt,45000,eventn);   //mi change
      ofstream out("good_tracks_tpc");
      if (out) {
         for (Int_t ngd=0; ngd<ngood; ngd++)            
	   out<<gt[ngd].fEventN<<' '<<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_tpc) !\n";
      out.close();

      /*
      cerr<<"Preparing tracks for matching with the ITS...\n";
      tarray.Sort();
      tf=TFile::Open("AliTPCtracks.root","recreate");
      tracktree=new TTree("TPCf","Tree with TPC tracks");
      tracktree->Branch("tracks","AliTPCtrack",&iotrack,32000,0);
      for (i=0; i<nentr; i++) {
          iotrack=(AliTPCtrack*)tarray.UncheckedAt(i);
          tracktree->Fill();
      }
      tracktree->Write();
      tf->Close();
      */
   }
   cerr<<"Number of good tracks : "<<ngood<<endl;

   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","Relative Pt resolution (pt>4GeV/c)",30,-60,60); 
   hmpt->SetFillColor(6);

   AliTPCtrack *trk=(AliTPCtrack*)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 *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.,250.);
   hep->SetMarkerStyle(8);
   hep->SetMarkerSize(0.4);

   Int_t mingood = ngood;  //MI change
   Int_t * track_notfound = new Int_t[ngood];
   Int_t   itrack_notfound =0;
   Int_t * track_fake  = new Int_t[ngood];
   Int_t   itrack_fake = 0;
   Int_t * track_multifound = new Int_t[ngood];
   Int_t * track_multifound_n = new Int_t[ngood];
   Int_t   itrack_multifound =0;

   while (ngood--) {
      Int_t lab=gt[ngood].lab,tlab=-1;
      Float_t ptg=
      TMath::Sqrt(gt[ngood].px*gt[ngood].px + gt[ngood].py*gt[ngood].py);

      if (ptg<pmin) continue;

      hgood->Fill(ptg);
      Int_t ievent = gt[ngood].fEventN;

      AliTPCtrack *track=0;
      //      for (i=0; i<nentr; i++) {
      for (i=eventptr[ievent]; i<eventptr[ievent+1]; i++) {

          track=(AliTPCtrack*)tarray.UncheckedAt(i);
          tlab=track->GetLabel();
          if (lab==TMath::Abs(tlab)) break;
      }
      //      if (i==nentr) {
      if (i==eventptr[ievent+1]) {

	//cerr<<"Track "<<lab<<" was not found !\n";
	track_notfound[itrack_notfound++]=lab;
        continue;
      }
      
      //MI change  - addition
      Int_t micount=0;
      Int_t mi;
      AliTPCtrack * mitrack;
      //      for (mi=0; mi<nentr; mi++) {
      for (mi=eventptr[ievent]; mi<eventptr[ievent+1]; mi++) {

	mitrack=(AliTPCtrack*)tarray.UncheckedAt(mi);          
	if (lab==TMath::Abs(mitrack->GetLabel())) micount++;
      }
      if (micount>1) {
	//cout<<"Track no. "<<lab<<" found "<<micount<<"  times\n";
	track_multifound[itrack_multifound]=lab;
	track_multifound_n[itrack_multifound]=micount;
	itrack_multifound++;
      }
      

      //
      Double_t xk=gt[ngood].x;//digp->GetPadRowRadii(0,0);
      track->PropagateTo(xk);

      if (lab==tlab) hfound->Fill(ptg);
      else { 
	track_fake[itrack_fake++]=lab;
	hfake->Fill(ptg); 
	//cerr<<lab<<" fake\n";
      }

      Double_t par[5]; track->GetExternalParameters(xk,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]);

      if (TMath::Abs(gt[ngood].code)==11 && ptg>4.) {
         hmpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.);
      } else {
         Float_t phig=TMath::ATan2(gt[ngood].py,gt[ngood].px);
         hp->Fill((phi - phig)*1000.);

         Float_t lamg=TMath::ATan2(gt[ngood].pz,ptg);
         hl->Fill((lam - lamg)*1000.);

         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[ngood].code)==211)
	 if (mom>0.4 && mom<0.5) {
            he->Fill(dedx,1.);
         }

   }

   
   Stat_t ng=hgood->GetEntries(); cerr<<"Good tracks "<<ng<<endl;
   Stat_t nf=hfound->GetEntries();
   if (ng!=0) 
      cerr<<"\n\n\nIntegral efficiency is about "<<nf/ng*100.<<" %\n";
   
   //MI change  - addition
   cout<<"Total number of found tracks ="<<nentr<<"\n";
   cout<<"Total number of \"good\" tracks ="<<mingood<<"\n";


   cout<<"\nList of Not found tracks :\n";
   //   Int_t i;
   for ( i = 0; i< itrack_notfound; i++){
     cout<<track_notfound[i]<<"\t";
     if ((i%5)==4) cout<<"\n";
   }
   cout<<"\nList of fake  tracks :\n";
   for ( i = 0; i< itrack_fake; i++){
     cout<<track_fake[i]<<"\t";
     if ((i%5)==4) cout<<"\n";
   }
    cout<<"\nList of multiple found tracks :\n";
   for ( i=0; i<itrack_multifound; i++) {
       cout<<"id.   "<<track_multifound[i]<<"     found - "<<track_multifound_n[i]<<"times\n";
   }
   cout<<"\n\n\n";

   
   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("(%)"); hmpt->Fit("gaus"); 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"); 
   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();

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


   return 0;
}


Int_t good_tracks(GoodTrack *gt, Int_t max, Int_t eventn) {
  //eventn  - number of events in file

   TFile *file=TFile::Open("rfio:galice.root");
   if (!file->IsOpen()) {cerr<<"Can't open galice.root !\n"; exit(4);}

   if (!(gAlice=(AliRun*)file->Get("gAlice"))) {
     cerr<<"gAlice have not been found on galice.root !\n";
     exit(5);
   }

   //   Int_t np=gAlice->GetEvent(0); //MI change   

   AliTPC *TPC=(AliTPC*)gAlice->GetDetector("TPC");
   Int_t ver = TPC->IsVersion(); 
   cerr<<"TPC version "<<ver<<" has been found !\n";

   AliTPCParam *digp=(AliTPCParam*)file->Get("75x40_100x60");
   if (!digp) { cerr<<"TPC parameters have not been found !\n"; exit(6); }
   TPC->SetParam(digp);

   Int_t nrow_up=digp->GetNRowUp();
   Int_t nrows=digp->GetNRowLow()+nrow_up;
   Int_t zero=digp->GetZeroSup();
   Int_t gap=Int_t(0.125*nrows);
   Int_t good_number=Int_t(0.4*nrows);


   //MI change
   Int_t nt=0;  //reset counter
   char treeName[100];  //declare event identifier
       
   for (Int_t event=0;event<eventn;event++){

     Int_t np=gAlice->GetEvent(event);   
     Int_t *good=new Int_t[np];
     for (Int_t ii=0; ii<np; ii++) good[ii]=0;
     
     
     //MI change to be possible compile macro
     //definition out of the swith statemnet
     Int_t sectors_by_rows=0;
     TTree *TD=0;
     AliSimDigits da, *digits=&da;
     Int_t *count=0;
     switch (ver) {
     case 1:
       {
	 TFile *cf=TFile::Open("AliTPCclusters.root");
	 if (!cf->IsOpen()){cerr<<"Can't open AliTPCclusters.root !\n";exit(5);}
	 AliTPCClustersArray *ca=new AliTPCClustersArray;
	 ca->Setup(digp);
	 ca->SetClusterType("AliTPCcluster");
	 ca->ConnectTree("Segment Tree");
	 Int_t nrows=Int_t(ca->GetTree()->GetEntries());
	 for (Int_t n=0; n<nrows; n++) {
	   AliSegmentID *s=ca->LoadEntry(n);
	   Int_t sec,row;
	   digp->AdjustSectorRow(s->GetID(),sec,row);
	   AliTPCClustersRow &clrow = *ca->GetRow(sec,row);
	   Int_t ncl=clrow.GetArray()->GetEntriesFast();
	   while (ncl--) {
	     AliTPCcluster *c=(AliTPCcluster*)clrow[ncl];
	     Int_t lab=c->GetLabel(0);
	     if (lab<0) continue; //noise cluster
	     lab=TMath::Abs(lab);
	     if (sec>=digp->GetNInnerSector())
	       if (row==nrow_up-1    ) good[lab]|=0x1000;
	     if (sec>=digp->GetNInnerSector())
	       if (row==nrow_up-1-gap) good[lab]|=0x800;
	     good[lab]++;
	   }
	   ca->ClearRow(sec,row);
	 }
	 cf->Close();
       }
     break;
     case 2:

       sprintf(treeName,"TreeD_75x40_100x60_%d",event);       
       TD=(TTree*)gDirectory->Get(treeName);
       TD->GetBranch("Segment")->SetAddress(&digits);
       count = new Int_t[np];
       Int_t i;
       for (i=0; i<np; i++) count[i]=0;
       sectors_by_rows=(Int_t)TD->GetEntries();
       for (i=0; i<sectors_by_rows; i++) {
	 if (!TD->GetEvent(i)) continue;
	 Int_t sec,row;
	 digp->AdjustSectorRow(digits->GetID(),sec,row);
	 cerr<<sec<<' '<<row<<"                                     \r";
	 digits->First();
	 do { //Many thanks to J.Chudoba who noticed this
	   Int_t it=digits->CurrentRow(), ip=digits->CurrentColumn();
	   Short_t dig = digits->GetDigit(it,ip);
	   Int_t idx0=digits->GetTrackID(it,ip,0); 
	   Int_t idx1=digits->GetTrackID(it,ip,1);
	   Int_t idx2=digits->GetTrackID(it,ip,2);
	   if (idx0>=0 && dig>=zero) count[idx0]+=1;
	   if (idx1>=0 && dig>=zero) count[idx1]+=1;
	   if (idx2>=0 && dig>=zero) count[idx2]+=1;
          } while (digits->Next());
	 for (Int_t j=0; j<np; j++) {
	   if (count[j]>1) {
	     if (sec>=digp->GetNInnerSector())
	       if (row==nrow_up-1    ) good[j]|=0x1000;
	     if (sec>=digp->GetNInnerSector())
	       if (row==nrow_up-1-gap) good[j]|=0x800;
	     good[j]++;
	   }
	   count[j]=0;
	 }
       }
       delete[] count;
       break;
     default:
       cerr<<"Invalid TPC version !\n";
       file->Close();
       exit(7);
     }
     
     TTree *TH=gAlice->TreeH();
     Int_t npart=(Int_t)TH->GetEntries();

     while (npart--) {
       AliTPChit *hit0=0;
       
       TPC->ResetHits();
       TH->GetEvent(npart);
       AliTPChit * hit = (AliTPChit*) TPC->FirstHit(-1);
       while (hit){
	 if (hit->fQ==0.) break;
	hit =  (AliTPChit*) TPC->NextHit();
       }
       if (hit) {
	 hit0 = new AliTPChit(*hit); //Make copy of hit
	 hit = hit0;
       }
       else continue;
       AliTPChit *hit1=(AliTPChit*)TPC->NextHit();	
       if (hit1==0) continue;
       if (hit1->fQ != 0.) continue;
       Int_t i=hit->Track();
       TParticle *p = (TParticle*)gAlice->Particle(i);
       
       if (p->GetFirstMother()>=0) continue;  //secondary particle
       if (good[i] < 0x1000+0x800+2+good_number) continue;
       if (p->Pt()<0.100) continue;
       if (TMath::Abs(p->Pz()/p->Pt())>0.999) continue;
       
       gt[nt].lab=i;
       gt[nt].code=p->GetPdgCode();
       //**** px py pz - in global coordinate system, x y z - in local !
       gt[nt].px=hit->X(); gt[nt].py=hit->Y(); gt[nt].pz=hit->Z();
       Float_t cs,sn; digp->AdjustCosSin(hit1->fSector,cs,sn);
       gt[nt].fEventN=event;  //MI change
       gt[nt].x = hit1->X()*cs + hit1->Y()*sn;
       gt[nt].y =-hit1->X()*sn + hit1->Y()*cs;
       gt[nt].z = hit1->Z();
       nt++;	
       if (hit0) delete hit0;
       cerr<<i<<"                \r";
       if (nt==max) {cerr<<"Too many good tracks !\n"; break;}
     }
     delete[] good;
   }
   delete gAlice; gAlice=0;

   file->Close();
   gBenchmark->Stop("AliTPCComparison");
   gBenchmark->Show("AliTPCComparison");   
   return nt;
}
Commit	Line	Data
be9c5115	1	#ifndef __CINT__
be9c5115	2	#include "alles.h"
b9de75e1	3	#include "AliTPCtracker.h"
be9c5115	4	#endif
be9c5115	5
cc80f89e	6	struct GoodTrack {
afc42102	7	Int_t fEventN; //event number
cc80f89e	8	Int_t lab;
	9	Int_t code;
	10	Float_t px,py,pz;
	11	Float_t x,y,z;
	12	};
afc42102	13	Int_t good_tracks(GoodTrack *gt, Int_t max, Int_t eventn=1);
cc80f89e	14
afc42102	15	Int_t AliTPCComparison(Int_t eventn=1) {
9b280d80	16	cerr<<"Doing comparison...\n";
9b280d80	17	Int_t i;
cf98c13f	18	gBenchmark->Start("AliTPCComparison");
8c555625	19
73042f01	20	TFile *cf=TFile::Open("AliTPCclusters.root");
	21	if (!cf->IsOpen()) {cerr<<"Can't open AliTPCclusters.root !\n"; return 1;}
	22	AliTPCParam digp= (AliTPCParam)cf->Get("75x40_100x60");
	23	if (!digp) { cerr<<"TPC parameters have not been found !\n"; return 2; }
	24
8c555625	25
afc42102	26
	27	///////////
	28	AliTPCtracker *tracker =0;
73042f01	29	TObjArray tarray(2000);
be9c5115	30	AliTPCtrack *iotrack=0;
afc42102	31	Int_t nentr= 0;
	32	Int_t eventptr[1000];
	33	TFile *tf=TFile::Open("AliTPCtracks.root");
	34	TTree *tracktree=0;
	35	// Load clusters
	36	eventptr[0]=0;
	37	eventptr[1]=0;
	38	for (Int_t event=0;event<eventn; event++){
	39	cf->cd();
	40	tracker = new AliTPCtracker(digp,event);
	41	tracker->LoadInnerSectors();
	42	tracker->LoadOuterSectors();
	43	char tname[100];
	44	if (eventn==-1) {
	45	sprintf(tname,"TreeT_TPC");
	46	}
	47	else {
	48	sprintf(tname,"TreeT_TPC_%d",event);
	49	}
	50
	51	// Load tracks
	52	if (!tf->IsOpen()) {cerr<<"Can't open AliTPCtracks.root !\n"; return 3;}
	53	tracktree=(TTree*)tf->Get(tname);
	54	if (!tracktree) {cerr<<"Can't get a tree with TPC tracks !\n"; return 4;}
	55	TBranch *tbranch=tracktree->GetBranch("tracks");
	56	Int_t nentr0=(Int_t)tracktree->GetEntries();
	57	nentr+=nentr0;
	58	for (i=0; i<nentr0; i++) {
be9c5115	59	iotrack=new AliTPCtrack;
73042f01	60	tbranch->SetAddress(&iotrack);
73042f01	61	tracktree->GetEvent(i);
b9de75e1	62	tracker->CookLabel(iotrack,0.1);
73042f01	63	tarray.AddLast(iotrack);
afc42102	64	}
	65	eventptr[event+1] = nentr; //store end of the event
	66	delete tracker;
	67	}
b9de75e1	68	tf->Close();
73042f01	69	cf->Close();
afc42102	70
	71	//MI change for a moment
	72
8c555625	73
8c555625	74	/////////////////////////////////////////////////////////////////////////
afc42102	75	// GoodTrack gt[15000];
	76	GoodTrack gt[45000];
	77
cc80f89e	78	Int_t ngood=0;
be9c5115	79	ifstream in("good_tracks_tpc");
cc80f89e	80	if (in) {
cc80f89e	81	cerr<<"Reading good tracks...\n";
afc42102	82	while (in>>gt[ngood].fEventN>>gt[ngood].lab>>gt[ngood].code>>
be9c5115	83	gt[ngood].px>>gt[ngood].py>>gt[ngood].pz>>
be9c5115	84	gt[ngood].x >>gt[ngood].y >>gt[ngood].z) {
cc80f89e	85	ngood++;
cc80f89e	86	cerr<<ngood<<'\r';
afc42102	87	if (ngood==45000) {
cc80f89e	88	cerr<<"Too many good tracks !\n";
	89	break;
	90	}
	91	}
be9c5115	92	if (!in.eof()) cerr<<"Read error (good_tracks_tpc) !\n";
cc80f89e	93	} else {
cc80f89e	94	cerr<<"Marking good tracks (this will take a while)...\n";
afc42102	95	ngood=good_tracks(gt,45000,eventn); //mi change
be9c5115	96	ofstream out("good_tracks_tpc");
cc80f89e	97	if (out) {
cc80f89e	98	for (Int_t ngd=0; ngd<ngood; ngd++)
afc42102	99	out<<gt[ngd].fEventN<<' '<<gt[ngd].lab<<' '<<gt[ngd].code<<' '<<
be9c5115	100	gt[ngd].px<<' '<<gt[ngd].py<<' '<<gt[ngd].pz<<' '<<
	101	gt[ngd].x <<' '<<gt[ngd].y <<' '<<gt[ngd].z <<endl;
	102	} else cerr<<"Can not open file (good_tracks_tpc) !\n";
cc80f89e	103	out.close();
be9c5115	104
afc42102	105	/*
be9c5115	106	cerr<<"Preparing tracks for matching with the ITS...\n";
	107	tarray.Sort();
	108	tf=TFile::Open("AliTPCtracks.root","recreate");
b9de75e1	109	tracktree=new TTree("TPCf","Tree with TPC tracks");
be9c5115	110	tracktree->Branch("tracks","AliTPCtrack",&iotrack,32000,0);
	111	for (i=0; i<nentr; i++) {
	112	iotrack=(AliTPCtrack*)tarray.UncheckedAt(i);
	113	tracktree->Fill();
	114	}
	115	tracktree->Write();
	116	tf->Close();
afc42102	117	*/
cc80f89e	118	}
	119	cerr<<"Number of good tracks : "<<ngood<<endl;
	120
cc80f89e	121	TH1F *hp=new TH1F("hp","PHI resolution",50,-20.,20.); hp->SetFillColor(4);
cc80f89e	122	TH1F *hl=new TH1F("hl","LAMBDA resolution",50,-20,20);hl->SetFillColor(4);
8c555625	123	TH1F *hpt=new TH1F("hpt","Relative Pt resolution",30,-10.,10.);
8c555625	124	hpt->SetFillColor(2);
cc80f89e	125	TH1F *hmpt=new TH1F("hmpt","Relative Pt resolution (pt>4GeV/c)",30,-60,60);
cc80f89e	126	hmpt->SetFillColor(6);
8c555625	127
b9de75e1	128	AliTPCtrack trk=(AliTPCtrack)tarray.UncheckedAt(0);
	129	Double_t pmin=0.1*(100/0.299792458/0.2/trk->GetConvConst());
	130	Double_t pmax=6.0+pmin;
	131
	132	TH1F *hgood=new TH1F("hgood","Good tracks",30,pmin,pmax);
	133	TH1F *hfound=new TH1F("hfound","Found tracks",30,pmin,pmax);
	134	TH1F *hfake=new TH1F("hfake","Fake tracks",30,pmin,pmax);
	135	TH1F *hg=new TH1F("hg","",30,pmin,pmax); //efficiency for good tracks
8c555625	136	hg->SetLineColor(4); hg->SetLineWidth(2);
b9de75e1	137	TH1F *hf=new TH1F("hf","Efficiency for fake tracks",30,pmin,pmax);
8c555625	138	hf->SetFillColor(1); hf->SetFillStyle(3013); hf->SetLineWidth(2);
8c555625	139
cc80f89e	140	TH1F *he =new TH1F("he","dE/dX for pions with 0.4<p<0.5 GeV/c",50,0.,100.);
9b280d80	141	TH2F *hep=new TH2F("hep","dE/dX vs momentum",50,0.,2.,50,0.,250.);
be9c5115	142	hep->SetMarkerStyle(8);
be9c5115	143	hep->SetMarkerSize(0.4);
8c555625	144
cf98c13f	145	Int_t mingood = ngood; //MI change
	146	Int_t * track_notfound = new Int_t[ngood];
	147	Int_t itrack_notfound =0;
	148	Int_t * track_fake = new Int_t[ngood];
	149	Int_t itrack_fake = 0;
	150	Int_t * track_multifound = new Int_t[ngood];
	151	Int_t * track_multifound_n = new Int_t[ngood];
	152	Int_t itrack_multifound =0;
	153
cc80f89e	154	while (ngood--) {
cf98c13f	155	Int_t lab=gt[ngood].lab,tlab=-1;
cc80f89e	156	Float_t ptg=
cc80f89e	157	TMath::Sqrt(gt[ngood].pxgt[ngood].px + gt[ngood].pygt[ngood].py);
8c555625	158
b9de75e1	159	if (ptg<pmin) continue;
b9de75e1	160
8c555625	161	hgood->Fill(ptg);
afc42102	162	Int_t ievent = gt[ngood].fEventN;
cc80f89e	163
cf98c13f	164	AliTPCtrack *track=0;
afc42102	165	// for (i=0; i<nentr; i++) {
	166	for (i=eventptr[ievent]; i<eventptr[ievent+1]; i++) {
	167
cf98c13f	168	track=(AliTPCtrack*)tarray.UncheckedAt(i);
73042f01	169	tlab=track->GetLabel();
cc80f89e	170	if (lab==TMath::Abs(tlab)) break;
8c555625	171	}
afc42102	172	// if (i==nentr) {
	173	if (i==eventptr[ievent+1]) {
	174
be9c5115	175	//cerr<<"Track "<<lab<<" was not found !\n";
cf98c13f	176	track_notfound[itrack_notfound++]=lab;
cc80f89e	177	continue;
cc80f89e	178	}
cf98c13f	179
	180	//MI change - addition
	181	Int_t micount=0;
	182	Int_t mi;
	183	AliTPCtrack * mitrack;
afc42102	184	// for (mi=0; mi<nentr; mi++) {
	185	for (mi=eventptr[ievent]; mi<eventptr[ievent+1]; mi++) {
	186
cf98c13f	187	mitrack=(AliTPCtrack*)tarray.UncheckedAt(mi);
	188	if (lab==TMath::Abs(mitrack->GetLabel())) micount++;
	189	}
	190	if (micount>1) {
	191	//cout<<"Track no. "<<lab<<" found "<<micount<<" times\n";
	192	track_multifound[itrack_multifound]=lab;
	193	track_multifound_n[itrack_multifound]=micount;
	194	itrack_multifound++;
	195	}
	196
	197
	198	//
cc80f89e	199	Double_t xk=gt[ngood].x;//digp->GetPadRowRadii(0,0);
cc80f89e	200	track->PropagateTo(xk);
3c0f9266	201
cc80f89e	202	if (lab==tlab) hfound->Fill(ptg);
cf98c13f	203	else {
	204	track_fake[itrack_fake++]=lab;
	205	hfake->Fill(ptg);
	206	//cerr<<lab<<" fake\n";
	207	}
cc80f89e	208
be9c5115	209	Double_t par[5]; track->GetExternalParameters(xk,par);
	210	Float_t phi=TMath::ASin(par[2]) + track->GetAlpha();
	211	if (phi<-TMath::Pi()) phi+=2*TMath::Pi();
	212	if (phi>=TMath::Pi()) phi-=2*TMath::Pi();
	213	Float_t lam=TMath::ATan(par[3]);
	214	Float_t pt_1=TMath::Abs(par[4]);
cc80f89e	215
cc80f89e	216	if (TMath::Abs(gt[ngood].code)==11 && ptg>4.) {
be9c5115	217	hmpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.);
cc80f89e	218	} else {
cc80f89e	219	Float_t phig=TMath::ATan2(gt[ngood].py,gt[ngood].px);
cc80f89e	220	hp->Fill((phi - phig)*1000.);
3c0f9266	221
cc80f89e	222	Float_t lamg=TMath::ATan2(gt[ngood].pz,ptg);
cc80f89e	223	hl->Fill((lam - lamg)*1000.);
cc80f89e	224
be9c5115	225	hpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.);
cc80f89e	226	}
73042f01	227
be9c5115	228	Float_t mom=1./(pt_1*TMath::Cos(lam));
73042f01	229	Float_t dedx=track->GetdEdx();
cc80f89e	230	hep->Fill(mom,dedx,1.);
	231	if (TMath::Abs(gt[ngood].code)==211)
	232	if (mom>0.4 && mom<0.5) {
	233	he->Fill(dedx,1.);
	234	}
73042f01	235
cc80f89e	236	}
cc80f89e	237
cf98c13f	238
cc80f89e	239	Stat_t ng=hgood->GetEntries(); cerr<<"Good tracks "<<ng<<endl;
	240	Stat_t nf=hfound->GetEntries();
	241	if (ng!=0)
cf98c13f	242	cerr<<"\n\n\nIntegral efficiency is about "<<nf/ng*100.<<" %\n";
	243
	244	//MI change - addition
	245	cout<<"Total number of found tracks ="<<nentr<<"\n";
	246	cout<<"Total number of \"good\" tracks ="<<mingood<<"\n";
	247
	248
	249	cout<<"\nList of Not found tracks :\n";
	250	// Int_t i;
	251	for ( i = 0; i< itrack_notfound; i++){
	252	cout<<track_notfound[i]<<"\t";
	253	if ((i%5)==4) cout<<"\n";
	254	}
	255	cout<<"\nList of fake tracks :\n";
	256	for ( i = 0; i< itrack_fake; i++){
	257	cout<<track_fake[i]<<"\t";
	258	if ((i%5)==4) cout<<"\n";
	259	}
	260	cout<<"\nList of multiple found tracks :\n";
	261	for ( i=0; i<itrack_multifound; i++) {
	262	cout<<"id. "<<track_multifound[i]<<" found - "<<track_multifound_n[i]<<"times\n";
	263	}
	264	cout<<"\n\n\n";
8c555625	265
cf98c13f	266
8c555625	267	gStyle->SetOptStat(111110);
	268	gStyle->SetOptFit(1);
	269
	270	TCanvas *c1=new TCanvas("c1","",0,0,700,850);
	271
	272	TPad *p1=new TPad("p1","",0,0.3,.5,.6); p1->Draw();
	273	p1->cd(); p1->SetFillColor(42); p1->SetFrameFillColor(10);
	274	hp->SetFillColor(4); hp->SetXTitle("(mrad)"); hp->Fit("gaus"); c1->cd();
	275
	276	TPad *p2=new TPad("p2","",0.5,.3,1,.6); p2->Draw();
	277	p2->cd(); p2->SetFillColor(42); p2->SetFrameFillColor(10);
	278	hl->SetXTitle("(mrad)"); hl->Fit("gaus"); c1->cd();
	279
	280	TPad *p3=new TPad("p3","",0,0,0.5,0.3); p3->Draw();
	281	p3->cd(); p3->SetFillColor(42); p3->SetFrameFillColor(10);
	282	hpt->SetXTitle("(%)"); hpt->Fit("gaus"); c1->cd();
	283
	284	TPad *p4=new TPad("p4","",0.5,0,1,0.3); p4->Draw();
	285	p4->cd(); p4->SetFillColor(42); p4->SetFrameFillColor(10);
cc80f89e	286	hmpt->SetXTitle("(%)"); hmpt->Fit("gaus"); c1->cd();
8c555625	287
8c555625	288	TPad *p5=new TPad("p5","",0,0.6,1,1); p5->Draw(); p5->cd();
3c0f9266	289	p5->SetFillColor(41); p5->SetFrameFillColor(10);
8c555625	290	hfound->Sumw2(); hgood->Sumw2(); hfake->Sumw2();
	291	hg->Divide(hfound,hgood,1,1.,"b");
	292	hf->Divide(hfake,hgood,1,1.,"b");
	293	hg->SetMaximum(1.4);
	294	hg->SetYTitle("Tracking efficiency");
	295	hg->SetXTitle("Pt (GeV/c)");
	296	hg->Draw();
	297
b9de75e1	298	TLine *line1 = new TLine(pmin,1.0,pmax,1.0); line1->SetLineStyle(4);
8c555625	299	line1->Draw("same");
b9de75e1	300	TLine *line2 = new TLine(pmin,0.9,pmax,0.9); line2->SetLineStyle(4);
8c555625	301	line2->Draw("same");
	302
	303	hf->SetFillColor(1);
	304	hf->SetFillStyle(3013);
	305	hf->SetLineColor(2);
	306	hf->SetLineWidth(2);
	307	hf->Draw("histsame");
	308	TText *text = new TText(0.461176,0.248448,"Fake tracks");
	309	text->SetTextSize(0.05);
	310	text->Draw();
	311	text = new TText(0.453919,1.11408,"Good tracks");
	312	text->SetTextSize(0.05);
	313	text->Draw();
3c0f9266	314
	315
	316
	317	TCanvas *c2=new TCanvas("c2","",320,32,530,590);
	318
	319	TPad *p6=new TPad("p6","",0.,0.,1.,.5); p6->Draw();
	320	p6->cd(); p6->SetFillColor(42); p6->SetFrameFillColor(10);
	321	he->SetFillColor(2); he->SetFillStyle(3005);
	322	he->SetXTitle("Arbitrary Units");
	323	he->Fit("gaus"); c2->cd();
	324
	325	TPad *p7=new TPad("p7","",0.,0.5,1.,1.); p7->Draw();
	326	p7->cd(); p7->SetFillColor(42); p7->SetFrameFillColor(10);
	327	hep->SetXTitle("p (Gev/c)"); hep->SetYTitle("dE/dX (Arb. Units)");
	328	hep->Draw(); c1->cd();
	329
cf98c13f	330	gBenchmark->Stop("AliTPCComparison");
	331	gBenchmark->Show("AliTPCComparison");
	332
	333
73042f01	334	return 0;
cc80f89e	335	}
3c0f9266	336
cc80f89e	337
afc42102	338	Int_t good_tracks(GoodTrack *gt, Int_t max, Int_t eventn) {
afc42102	339	//eventn - number of events in file
cc80f89e	340
106ea0fc	341	TFile *file=TFile::Open("rfio:galice.root");
73042f01	342	if (!file->IsOpen()) {cerr<<"Can't open galice.root !\n"; exit(4);}
	343
	344	if (!(gAlice=(AliRun*)file->Get("gAlice"))) {
	345	cerr<<"gAlice have not been found on galice.root !\n";
	346	exit(5);
	347	}
	348
afc42102	349	// Int_t np=gAlice->GetEvent(0); //MI change
cc80f89e	350
73042f01	351	AliTPC TPC=(AliTPC)gAlice->GetDetector("TPC");
	352	Int_t ver = TPC->IsVersion();
	353	cerr<<"TPC version "<<ver<<" has been found !\n";
	354
	355	AliTPCParam digp=(AliTPCParam)file->Get("75x40_100x60");
	356	if (!digp) { cerr<<"TPC parameters have not been found !\n"; exit(6); }
	357	TPC->SetParam(digp);
	358
	359	Int_t nrow_up=digp->GetNRowUp();
	360	Int_t nrows=digp->GetNRowLow()+nrow_up;
	361	Int_t zero=digp->GetZeroSup();
cc80f89e	362	Int_t gap=Int_t(0.125*nrows);
	363	Int_t good_number=Int_t(0.4*nrows);
	364
cc80f89e	365
afc42102	366	//MI change
	367	Int_t nt=0; //reset counter
	368	char treeName[100]; //declare event identifier
	369
	370	for (Int_t event=0;event<eventn;event++){
	371
	372	Int_t np=gAlice->GetEvent(event);
	373	Int_t *good=new Int_t[np];
	374	for (Int_t ii=0; ii<np; ii++) good[ii]=0;
	375
	376
	377	//MI change to be possible compile macro
	378	//definition out of the swith statemnet
	379	Int_t sectors_by_rows=0;
	380	TTree *TD=0;
	381	AliSimDigits da, *digits=&da;
	382	Int_t *count=0;
	383	switch (ver) {
	384	case 1:
	385	{
	386	TFile *cf=TFile::Open("AliTPCclusters.root");
	387	if (!cf->IsOpen()){cerr<<"Can't open AliTPCclusters.root !\n";exit(5);}
	388	AliTPCClustersArray *ca=new AliTPCClustersArray;
	389	ca->Setup(digp);
	390	ca->SetClusterType("AliTPCcluster");
	391	ca->ConnectTree("Segment Tree");
	392	Int_t nrows=Int_t(ca->GetTree()->GetEntries());
	393	for (Int_t n=0; n<nrows; n++) {
	394	AliSegmentID *s=ca->LoadEntry(n);
	395	Int_t sec,row;
	396	digp->AdjustSectorRow(s->GetID(),sec,row);
	397	AliTPCClustersRow &clrow = *ca->GetRow(sec,row);
	398	Int_t ncl=clrow.GetArray()->GetEntriesFast();
	399	while (ncl--) {
	400	AliTPCcluster c=(AliTPCcluster)clrow[ncl];
	401	Int_t lab=c->GetLabel(0);
	402	if (lab<0) continue; //noise cluster
	403	lab=TMath::Abs(lab);
	404	if (sec>=digp->GetNInnerSector())
	405	if (row==nrow_up-1 ) good[lab]\|=0x1000;
	406	if (sec>=digp->GetNInnerSector())
	407	if (row==nrow_up-1-gap) good[lab]\|=0x800;
	408	good[lab]++;
	409	}
	410	ca->ClearRow(sec,row);
	411	}
	412	cf->Close();
	413	}
	414	break;
	415	case 2:
	416
	417	sprintf(treeName,"TreeD_75x40_100x60_%d",event);
	418	TD=(TTree*)gDirectory->Get(treeName);
	419	TD->GetBranch("Segment")->SetAddress(&digits);
	420	count = new Int_t[np];
	421	Int_t i;
	422	for (i=0; i<np; i++) count[i]=0;
	423	sectors_by_rows=(Int_t)TD->GetEntries();
	424	for (i=0; i<sectors_by_rows; i++) {
	425	if (!TD->GetEvent(i)) continue;
	426	Int_t sec,row;
	427	digp->AdjustSectorRow(digits->GetID(),sec,row);
	428	cerr<<sec<<' '<<row<<" \r";
	429	digits->First();
430	do { //Many thanks to J.Chudoba who noticed this
431	Int_t it=digits->CurrentRow(), ip=digits->CurrentColumn();
432	Short_t dig = digits->GetDigit(it,ip);
433	Int_t idx0=digits->GetTrackID(it,ip,0);
434	Int_t idx1=digits->GetTrackID(it,ip,1);
435	Int_t idx2=digits->GetTrackID(it,ip,2);
436	if (idx0>=0 && dig>=zero) count[idx0]+=1;
437	if (idx1>=0 && dig>=zero) count[idx1]+=1;
438	if (idx2>=0 && dig>=zero) count[idx2]+=1;
439	} while (digits->Next());
440	for (Int_t j=0; j<np; j++) {
441	if (count[j]>1) {
442	if (sec>=digp->GetNInnerSector())
443	if (row==nrow_up-1 ) good[j]\|=0x1000;
444	if (sec>=digp->GetNInnerSector())
445	if (row==nrow_up-1-gap) good[j]\|=0x800;
446	good[j]++;
447	}
448	count[j]=0;
449	}
450	}
451	delete[] count;
452	break;
453	default:
454	cerr<<"Invalid TPC version !\n";
455	file->Close();
456	exit(7);
457	}
458
459	TTree *TH=gAlice->TreeH();
460	Int_t npart=(Int_t)TH->GetEntries();
461
462	while (npart--) {
463	AliTPChit *hit0=0;
464
465	TPC->ResetHits();
466	TH->GetEvent(npart);
467	AliTPChit * hit = (AliTPChit*) TPC->FirstHit(-1);
468	while (hit){
469	if (hit->fQ==0.) break;
cf98c13f	470	hit = (AliTPChit*) TPC->NextHit();
afc42102	471	}
	472	if (hit) {
	473	hit0 = new AliTPChit(*hit); //Make copy of hit
	474	hit = hit0;
	475	}
	476	else continue;
	477	AliTPChit hit1=(AliTPChit)TPC->NextHit();
	478	if (hit1==0) continue;
	479	if (hit1->fQ != 0.) continue;
	480	Int_t i=hit->Track();
	481	TParticle p = (TParticle)gAlice->Particle(i);
	482
	483	if (p->GetFirstMother()>=0) continue; //secondary particle
	484	if (good[i] < 0x1000+0x800+2+good_number) continue;
	485	if (p->Pt()<0.100) continue;
	486	if (TMath::Abs(p->Pz()/p->Pt())>0.999) continue;
	487
	488	gt[nt].lab=i;
	489	gt[nt].code=p->GetPdgCode();
	490	//**** px py pz - in global coordinate system, x y z - in local !
	491	gt[nt].px=hit->X(); gt[nt].py=hit->Y(); gt[nt].pz=hit->Z();
	492	Float_t cs,sn; digp->AdjustCosSin(hit1->fSector,cs,sn);
	493	gt[nt].fEventN=event; //MI change
	494	gt[nt].x = hit1->X()cs + hit1->Y()sn;
	495	gt[nt].y =-hit1->X()sn + hit1->Y()cs;
	496	gt[nt].z = hit1->Z();
	497	nt++;
	498	if (hit0) delete hit0;
	499	cerr<<i<<" \r";
	500	if (nt==max) {cerr<<"Too many good tracks !\n"; break;}
	501	}
	502	delete[] good;
cc80f89e	503	}
be9c5115	504	delete gAlice; gAlice=0;
73042f01	505
73042f01	506	file->Close();
cf98c13f	507	gBenchmark->Stop("AliTPCComparison");
cf98c13f	508	gBenchmark->Show("AliTPCComparison");
cc80f89e	509	return nt;
8c555625	510	}
8c555625	511
73042f01	512
73042f01	513