HMPID/Hdisp.C

   1 TCanvas *pAll=0;
   2 AliRunLoader *gAL=0; AliLoader *gHL=0; AliESD *gEsd=0; TTree *gEsdTr=0; AliHMPID *gH=0;
   3 Int_t gEvt=0; Int_t gMaxEvt=0;
   4 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   5 void Hdisp()
   6 {//display events from files if any in current directory or simulated events
   7   pAll=new TCanvas("all","",1000,900); pAll->Divide(3,3,0,0);pAll->ToggleEditor();
   8   pAll->Connect("ProcessedEvent(Int_t,Int_t,Int_t,TObject*)",0,"","DoZoom(Int_t,Int_t,Int_t,TObject*)");
   9
  10   if(gSystem->IsFileInIncludePath("galice.root")){// tries to open session
  11     if(gAlice) delete gAlice;                                               //in case we execute this in aliroot delete default AliRun object
  12     gAL=AliRunLoader::Open();                                                                    //try to open galice.root from current dir
  13     gAL->LoadgAlice();                                                                           //take new AliRun object from galice.root
  14     gHL=gAL->GetDetectorLoader("HMPID");  gH=(AliHMPID*)gAL->GetAliRun()->GetDetector("HMPID");  //get HMPID object from galice.root
  15     gMaxEvt=gAL->GetNumberOfEvents()-1;
  16     gHL->LoadHits(); gHL->LoadDigits(); gHL->LoadRecPoints();
  17
  18     TFile *pEsdFl=TFile::Open("AliESDs.root"); gEsdTr=(TTree*) pEsdFl->Get("esdTree"); gEsdTr->SetBranchAddress("ESD", &gEsd);
  19     pAll->cd(7); TButton *pBtn=new TButton("Next","ReadEvt()",0,0,0.2,0.1);   pBtn->Draw();
  20     ReadEvt();
  21   }else{
  22     pAll->cd(7); TButton *pBtn=new TButton("Next","SimEvt()",0,0,0.2,0.1);   pBtn->Draw();
  23     SimEvt();
  24   }
  25 }
  26 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  27 void ReadEvt()
  28 {// Read curent event and display it assumes that session is alredy opened
  29   TClonesArray hits("AliHMPIDHit");
  30   if(gEvt>gMaxEvt) gEvt=0; if(gEvt<0) gEvt=gMaxEvt;
  31
  32   gEsdTr->GetEntry(gEvt); gAL->GetEvent(gEvt);
  33   ReadHits(&hits); gHL->TreeD()->GetEntry(0); gHL->TreeR()->GetEntry(0);
  34
  35   pAll->cd(3);  gPad->Clear(); TLatex txt;txt.DrawLatex(0.2,0.2,Form("Event %i (total %i)",gEvt,gMaxEvt));
  36   DrawEvt(&hits,gH->DigLst(),gH->CluLst(),gEsd);
  37   gEvt++;
  38 }
  39 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  40 void SimEvt()
  41 {
  42   TClonesArray hits("AliHMPIDHit");
  43   TClonesArray sdig("AliHMPIDDigit");
  44   TObjArray    digs(7); for(Int_t i=0;i<7;i++) digs.AddAt(new TClonesArray("AliHMPIDDigit"),i);
  45   TObjArray    clus(7); for(Int_t i=0;i<7;i++) clus.AddAt(new TClonesArray("AliHMPIDCluster"),i);
  46   AliESD esd;
  47
  48   SimEsd(&esd);
  49   SimHits(&esd,&hits);
  50              AliHMPIDv1::Hit2Sdi(&hits,&sdig);
  51       AliHMPIDDigitizer::Sdi2Dig(&sdig,&digs);
  52   AliHMPIDReconstructor::Dig2Clu(&digs,&clus);
  53         AliHMPIDTracker::Recon(&esd,&clus);
  54
  55   pAll->cd(3);  gPad->Clear(); TLatex txt;txt.DrawLatex(0.2,0.2,Form("Simulated event %i",gEvt));
  56   DrawEvt(&hits,&digs,&clus,&esd);
  57   gEvt++;
  58 }//SimEvt()
  59 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  60 void SimEsd(AliESD *pEsd)
  61 {
  62   TParticle part; TLorentzVector mom;
  63   for(Int_t iTrk=0;iTrk<25;iTrk++){//stack loop
  64     part.SetPdgCode(kProton);
  65     part.SetProductionVertex(0,0,0,0);
  66     Double_t eta= -0.4+gRandom->Rndm()*0.8; //rapidity is random [-0.4,+0.4]
  67     Double_t phi= gRandom->Rndm()*1.4;      //phi is random      [ 0  , 80 ] degrees
  68     mom.SetPtEtaPhiM(2,eta,phi,part.GetMass());
  69     part.SetMomentum(mom);
  70     AliESDtrack trk(&part);
  71     pEsd->AddTrack(&trk);
  72   }//stack loop
  73 }//EsdFromStack()
  74 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  75 void SimHits(AliESD *pEsd, TClonesArray *pHits)
  76 {
  77   AliHMPIDRecon rec;
  78   const Int_t kCerenkov=50000050,kFeedback=50000051;
  79   Int_t hc=0; TVector2 pos;
  80   for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){//tracks loop
  81     AliESDtrack *pTrk=pEsd->GetTrack(iTrk);
  82     Float_t xRa,yRa;
  83     Int_t ch=AliHMPIDTracker::IntTrkCha(pTrk,xRa,yRa);
  84     if(ch<0) continue; //this track does not hit HMPID
  85     Float_t ckov=0.63;
  86
  87     Float_t th,ph,xPc,yPc,; pTrk->GetHMPIDtrk(xPc,yPc,th,ph); rec.SetTrack(xRa,yRa,th,ph);
  88
  89     if(!AliHMPIDDigit::IsInDead(xPc,yPc)) new((*pHits)[hc++]) AliHMPIDHit(ch,200e-9,kProton  ,iTrk,xPc,yPc);                 //mip hit
  90     for(int i=0;i<4;i++)  new((*pHits)[hc++]) AliHMPIDHit(ch,7.5e-9,kFeedback,iTrk,gRandom->Rndm()*130,gRandom->Rndm()*126); //bkg hits 4 per track
  91     for(int i=0;i<16;i++){
  92       rec.TracePhot(ckov,gRandom->Rndm()*TMath::TwoPi(),pos);
  93       new((*pHits)[hc++]) AliHMPIDHit(ch,7.5e-9,kCerenkov,iTrk,pos.X(),pos.Y());
  94     }                      //photon hits
  95   }//tracks loop
  96 }//SimHits()
  97 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  98 void ReadHits(TClonesArray *pHitLst)
  99 {
 100   pHitLst->Delete();  Int_t cnt=0;
 101   for(Int_t iEnt=0;iEnt<gHL->TreeH()->GetEntries();iEnt++){       //TreeH loop
 102     gHL->TreeH()->GetEntry(iEnt);                                 //get current entry (prim)
 103     for(Int_t iHit=0;iHit<gH->Hits()->GetEntries();iHit++){       //hits loop
 104       AliHMPIDHit *pHit = (AliHMPIDHit*)gH->Hits()->At(iHit);     //get current hit
 105       new((*pHitLst)[cnt++]) AliHMPIDHit(*pHit);
 106     }//hits loop for this entry
 107   }//tree entries loop
 108
 109 }//ReadHits()
 110 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 111 void DrawCh(Int_t iCh)
 112 {
 113   gPad->Range(-10,-10,AliHMPIDDigit::SizeAllX()+5,AliHMPIDDigit::SizeAllY()+5);
 114   TLatex txt; txt.SetTextSize(0.1); txt.DrawLatex(-5,-5,Form("%i",iCh));
 115
 116   for(Int_t iPc=AliHMPIDDigit::kMinPc;iPc<=AliHMPIDDigit::kMaxPc;iPc++){
 117     TBox *pBox=new TBox(AliHMPIDDigit::fMinPcX[iPc],AliHMPIDDigit::fMinPcY[iPc],
 118                         AliHMPIDDigit::fMaxPcX[iPc],AliHMPIDDigit::fMaxPcY[iPc]);
 119
 120     pBox->SetFillStyle(0);
 121     pBox->Draw();
 122
 123   }//PC loop
 124 }//DrawCh()
 125 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 126 void DrawEvt(TClonesArray *pHitLst,TObjArray *pDigLst,TObjArray *pCluLst,AliESD *pEsd)
 127 {//draws all the objects of current event in given canvas
 128
 129   AliHMPIDRecon rec;
 130   TPolyMarker *pTxC[7];  TPolyMarker *pRin[7]; //intesections and rings
 131   for(Int_t ch=0;ch<7;ch++){
 132     pTxC[ch]=new TPolyMarker; pTxC[ch]->SetMarkerStyle(2); pTxC[ch]->SetMarkerColor(kRed); pTxC[ch]->SetMarkerSize(3);
 133     pRin[ch]=new TPolyMarker; pRin[ch]->SetMarkerStyle(6); pRin[ch]->SetMarkerColor(kMagenta);
 134   }
 135
 136
 137   for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){//tracks loop to collect cerenkov rings and intersection points
 138     AliESDtrack *pTrk=pEsd->GetTrack(iTrk);
 139     Int_t ch=pTrk->GetHMPIDcluIdx();
 140     if(ch<0) continue; //this track does not hit HMPID
 141     ch/=1000000;
 142     Float_t th,ph,xPc,yPc; pTrk->GetHMPIDtrk(xPc,yPc,th,ph);  //get info on current track
 143     pTxC[ch]->SetNextPoint(xPc,yPc);                          //add new intersection point
 144
 145     Float_t ckov=pTrk->GetHMPIDsignal();  Float_t err=TMath::Sqrt(pTrk->GetHMPIDchi2());
 146
 147     if(ckov>0){
 148       rec.SetTrack(xPc,yPc,th,ph);
 149      TVector2 pos;  for(int j=0;j<100;j++){rec.TracePhot(ckov,j*0.0628,pos); pRin[ch]->SetNextPoint(pos.X(),pos.Y());}
 150     }
 151   }//tracks loop
 152
 153   for(Int_t iCh=0;iCh<7;iCh++){//chambers loop
 154     switch(iCh){
 155       case 6: pAll->cd(1); break; case 5: pAll->cd(2); break;
 156       case 4: pAll->cd(4); break; case 3: pAll->cd(5); break; case 2: pAll->cd(6); break;
 157                                   case 1: pAll->cd(8); break; case 0: pAll->cd(9); break;
 158     }
 159     gPad->SetEditable(kTRUE); gPad->Clear();
 160     DrawCh(iCh);
 161     for(Int_t iHit=0;iHit<pHitLst->GetEntries();iHit++){
 162       AliHMPIDHit *pHit=(AliHMPIDHit*)pHitLst->At(iHit);
 163       if(pHit->Ch()==iCh)        pHit->Draw();  //draw hits
 164     }
 165     ((TClonesArray*)pDigLst->At(iCh))->Draw();  //draw digits
 166     ((TClonesArray*)pCluLst->At(iCh))->Draw();  //draw clusters
 167                             pTxC[iCh]->Draw();  //draw intersections
 168                             pRin[iCh]->Draw();  //draw rings
 169     gPad->SetEditable(kFALSE);
 170   }//chambers loop
 171 }//DrawEvt()
 172 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 173 void DoZoom(Int_t evt, Int_t px, Int_t py, TObject *obj)
 174 {
 175   if(evt!=5 && evt!=6) return; //5- zoom in 6-zoom out
 176   const Int_t minZoom=64;
 177   const Int_t maxZoom=2;
 178   static Int_t zoom=minZoom; //zoom level
 179   if(evt==5&&zoom==maxZoom) return;
 180   if(evt==6&&zoom==minZoom) return;
 181
 182   if(!obj->IsA()->InheritsFrom("TPad")) return;  //current object is not pad
 183   TPad *pPad=(TPad*)obj;
 184   if(pPad->GetNumber()==3 || pPad->GetNumber()==7) return; //current pad is wrong
 185
 186  // Printf("evt=%i (%i,%i) %s",evt,px,py,obj->GetName());
 187
 188   Float_t x=pPad->AbsPixeltoX(px); Float_t y=pPad->AbsPixeltoY(py);
 189
 190   if(evt==5){ zoom=zoom/2;     pPad->Range(x-zoom*2,y-zoom*2,x+zoom*2,y+zoom*2);} //zoom in
 191   else      { zoom=zoom*2;     pPad->Range(x-zoom*2,y-zoom*2,x+zoom*2,y+zoom*2);} //zoom out
 192   if(zoom==minZoom) pPad->Range(-10,-10,AliHMPIDDigit::SizeAllX()+5,AliHMPIDDigit::SizeAllY()+5);
 193   ((TCanvas *)gTQSender)->SetTitle(Form("zoom x%i",minZoom/zoom));
 194   pPad->Modified();
 195   pPad->Update();
 196 }
 197 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++