ITS/oldmacros/AliITSScanPIDV2.C

   1 ///////////////////////////////////////////////////////////
   2 // Test macro for AliITStracksV2Pid.root file            //
   3 // JINR Dubna Jan 2002                                   //
   4 ///////////////////////////////////////////////////////////
   5 void
   6 AliITSScanPIDV2(Int_t evNumber1=0,Int_t evNumber2=0) {
   7   //................. Prepare histogramms ................
   8      TH2F *qplot =  new TH2F("Qtrm","Qtrm vs Pmom",100,0,1.300,100,0,13);
   9      TH2F *qplotP=  new TH2F("QtrmP","Qtrm vs Pmom",100,0,1.300,100,0,13);
  10      TH2F *qplotKa= new TH2F("QtrmKa","Qtrm vs Pmom",100,0,1.300,100,0,13);
  11      TH2F *qplotPi= new TH2F("QtrmPi","Qtrm vs Pmom",100,0,1.300,100,0,13);
  12      TH2F *qplotE=  new TH2F("QtrmE","Qtrm vs Pmom",100,0,1.300,100,0,13);
  13      qplotP.SetMarkerStyle(8); qplotP.SetMarkerColor(kBlue); qplotP.SetMarkerSize(.3);
  14      qplotKa.SetMarkerStyle(8); qplotKa.SetMarkerColor(kRed); qplotKa.SetMarkerSize(.3);
  15      qplotPi.SetMarkerStyle(8); qplotPi.SetMarkerColor(kBlack); qplotPi.SetMarkerSize(.3);
  16      qplotE.SetMarkerStyle(8); qplotE.SetMarkerColor(kGreen); qplotE.SetMarkerSize(.3);
  17   //......................................................
  18   TH1F *signal_mip = new TH1F("signal_mip","Signal (mips) for track",100,0.,15.);
  19
  20 TFile *fpid = new TFile("AliITStracksV2Pid.root","read");
  21 fpid->ls();
  22 //
  23 //   Loop over events
  24 //
  25 for (int nev=0; nev<= evNumber2; nev++) {
  26   char tpidname[30];
  27   sprintf(tpidname,"TreeT%d",nev);
  28   TTree *tracktree=(TTree*)fpid->Get(tpidname);
  29   TBranch *tbranch=tracktree->GetBranch("pids");
  30
  31    Int_t nentr=tracktree->GetEntries();
  32    cout<<"Found PID for "<<nentr<<" ITS V2 tracks on "<<tpidname<<endl;
  33
  34    AliITStrackV2Pid *iopid=0;
  35 for(Int_t ii=0;ii<nentr;ii++)
  36   {
  37       AliITStrackV2Pid *iopid=new AliITStrackV2Pid;
  38       tbranch->SetAddress(&iopid);
  39       tracktree->GetEvent(ii);
  40
  41       signal_mip->Fill(iopid->fSignal);
  42
  43         if(iopid->fPcode ==2212)qplotP.Fill(iopid->fMom,iopid->fSignal);
  44         if(iopid->fPcode == 321)qplotKa.Fill(iopid->fMom,iopid->fSignal  );
  45         if(iopid->fPcode == 211)qplotPi.Fill(iopid->fMom,iopid->fSignal  );
  46         if(iopid->fPcode ==  11)qplotE.Fill(iopid->fMom,iopid->fSignal   );
  47         /*
  48
  49 if(  (iopid->fWp<0.10)||(iopid->fWk<0.0)||(iopid->fWpi<0.0) ){
  50           cout<<"PID pcode,fsignal,fmom= "<<iopid->fPcode<<","<<iopid->fSignal<<","<<iopid->fMom<<endl;
  51           cout<<"wpi,wka,wp="<<iopid->fWpi<<" "<<iopid->fWk<<" "<<iopid->fWp<<endl;
  52       }
  53         */
  54       delete iopid;
  55   }// Enf for ii (tracks)
  56  }// End for nev (events)
  57  fpid->Close();
  58   //...................... Draw histogramms .................
  59    TCanvas *c1 = new TCanvas("PID_test","Scan PID ",200,10,900,700);
  60    c1->Divide(2,1);
  61   //.........................................................
  62    c1->cd(1); gPad->SetFillColor(33);
  63    signal_mip->Draw();
  64
  65    c1->cd(2); //gPad->SetFillColor(33);
  66    qplot->Draw();
  67    qplotP.Draw("same"); qplotKa.Draw("same"); qplotPi.Draw("same"); qplotE.Draw("same");
  68
  69    AliITSPid *pid =new AliITSPid(100);
  70    fcutka.Draw("same"); fcutpr.Draw("same");
  71    c1->Print("ITSPIDplot.ps");
  72
  73   cout<<"End of file AliITStracksV2Pid.root "<<endl;
  74   return;
  75 }
  76