HMPID/Hdisp.C

   1 #if !defined(__CINT__) || defined(__MAKECINT__)
   2
   3 #include <TSystem.h>
   4 #include <TFile.h>
   5 #include <TTree.h>
   6 #include <TButton.h>
   7 #include <TCanvas.h>
   8 #include <TClonesArray.h>
   9 #include <TParticle.h>
  10 #include <TRandom.h>
  11 #include <TLatex.h>
  12 #include <TLegend.h>
  13 #include <TPolyMarker.h>
  14 #include <TBox.h>
  15 #include <AliESDEvent.h>
  16 #include <AliCDBManager.h>
  17 #include <AliCDBEntry.h>
  18 #include "AliHMPIDHit.h"
  19 #include "AliHMPIDv2.h"
  20 #include "AliHMPIDReconstructor.h"
  21 #include "AliHMPIDRecon.h"
  22 #include "AliHMPIDParam.h"
  23 #include "AliHMPIDCluster.h"
  24 #include "AliTracker.h"
  25
  26 #include <TChain.h>
  27
  28 #endif
  29
  30 TCanvas *fCanvas=0; Int_t fType=3; Int_t fEvt=0; Int_t fNevt=0;
  31 TFile *fHitFile; TTree *fHitTree; TClonesArray *fHitLst; TPolyMarker *fRenMip[7]; TPolyMarker *fRenCko[7]; TPolyMarker *fRenFee[7];
  32                                   TClonesArray *fSdiLst;
  33 TFile *fDigFile; TTree *fDigTree; TObjArray    *fDigLst; TPolyMarker *fRenDig[7];
  34 TFile *fCluFile; TTree *fCluTree; TObjArray    *fCluLst; TPolyMarker *fRenClu[7];
  35 TFile *fEsdFile; TTree *fEsdTree;  AliESDEvent      *fEsd;    TPolyMarker *fRenTxC[7]; TPolyMarker *fRenRin[7];
  36 TFile *fCosFile; TTree *fCosTree;
  37 AliRunLoader *gAL=0;
  38
  39 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  40 void CreateContainers()
  41 {//to create all containers
  42   fHitLst=new TClonesArray("AliHMPIDHit");
  43   fSdiLst=new TClonesArray("AliHMPIDDigit");
  44   fDigLst=new TObjArray(7); for(Int_t i=0;i<7;i++) fDigLst->AddAt(new TClonesArray("AliHMPIDDigit"),i);       fDigLst->SetOwner(kTRUE);
  45   fCluLst=new TObjArray(7); for(Int_t i=0;i<7;i++) fCluLst->AddAt(new TClonesArray("AliHMPIDCluster"),i);     fCluLst->SetOwner(kTRUE);
  46   fEsd   =new AliESDEvent;
  47 }
  48 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  49 void CreateRenders()
  50 {
  51   for(Int_t ch=0;ch<7;ch++){
  52     fRenMip[ch]=new TPolyMarker; fRenMip[ch]->SetMarkerStyle(kOpenTriangleUp);  fRenMip[ch]->SetMarkerColor(kRed);
  53     fRenCko[ch]=new TPolyMarker; fRenCko[ch]->SetMarkerStyle(kOpenCircle);      fRenCko[ch]->SetMarkerColor(kRed);
  54     fRenFee[ch]=new TPolyMarker; fRenFee[ch]->SetMarkerStyle(kOpenDiamond);     fRenFee[ch]->SetMarkerColor(kRed);
  55     fRenDig[ch]=new TPolyMarker; fRenDig[ch]->SetMarkerStyle(kOpenSquare);      fRenDig[ch]->SetMarkerColor(kGreen);
  56     fRenClu[ch]=new TPolyMarker; fRenClu[ch]->SetMarkerStyle(kStar);            fRenClu[ch]->SetMarkerColor(kBlue);
  57     fRenTxC[ch]=new TPolyMarker; fRenTxC[ch]->SetMarkerStyle(kPlus);            fRenTxC[ch]->SetMarkerColor(kRed);      fRenTxC[ch]->SetMarkerSize(3);
  58     fRenRin[ch]=new TPolyMarker; fRenRin[ch]->SetMarkerStyle(kFullDotSmall);    fRenRin[ch]->SetMarkerColor(kMagenta);
  59   }
  60 }//CreateRenders()
  61 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  62 void ClearRenders()
  63 {
  64   for(Int_t ch=0;ch<7;ch++){
  65     fRenTxC[ch]->SetPolyMarker(0);
  66     fRenRin[ch]->SetPolyMarker(0);
  67     fRenMip[ch]->SetPolyMarker(0);
  68     fRenCko[ch]->SetPolyMarker(0);
  69     fRenFee[ch]->SetPolyMarker(0);
  70     fRenDig[ch]->SetPolyMarker(0);
  71     fRenClu[ch]->SetPolyMarker(0);
  72   }
  73 }//ClearRenders()
  74 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  75 void PrintHits()
  76 {
  77 //Prints a list of HMPID hits for a given event. Default is event number 0.
  78   if(!fHitTree) return;
  79   Printf("List of HMPID hits for event %i",fEvt);
  80   Int_t iTot=0;
  81   for(Int_t iEnt=0;iEnt<fHitTree->GetEntries();iEnt++){//entries loop
  82     fHitTree->GetEntry(iEnt);
  83     fHitLst->Print();
  84     iTot+=fHitLst->GetEntries();
  85   }
  86   Printf("totally %i hits for event %i",iTot,fEvt);
  87 }//PrintHits();
  88 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  89 void PrintSdis()
  90 {//prints a list of HMPID sdigits  for a given event
  91   Printf("List of HMPID sdigits for event %i",fEvt);
  92   fSdiLst->Print();
  93   Printf("totally %i sdigits for event %i",fSdiLst->GetEntries(),fEvt);
  94 }//PrintSdis()
  95 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  96 void PrintDigs()
  97 {//prints a list of HMPID digits
  98   Printf("List of HMPID digits for event %i",fEvt);
  99   fDigLst->Print();
 100   Int_t iTot=0;  for(Int_t i=0;i<7;i++) {iTot+=((TClonesArray*)fDigLst->At(i))->GetEntries();}
 101   Printf("totally %i digits for event %i",iTot,fEvt);
 102 }
 103 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 104 void PrintClus()
 105 {//prints a list of HMPID clusters  for a given event
 106   Printf("List of HMPID clusters for event %i",fEvt);
 107
 108   fCluLst->Print();
 109   Int_t iTot=0; for(Int_t iCh=0;iCh<7;iCh++) iTot+=((TClonesArray*)fCluLst->At(iCh))->GetEntries();
 110
 111   Printf("totally %i clusters for event %i",iTot,fEvt);
 112 }
 113 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 114 void PrintEsd()
 115 {//prints a list of HMPID Esd  for a given event
 116   Printf("List of HMPID ESD summary for event %i",fEvt);
 117   for(Int_t iTrk=0;iTrk<fEsd->GetNumberOfTracks();iTrk++){
 118     AliESDtrack *pTrk = fEsd->GetTrack(iTrk);
 119     Float_t x,y;Int_t q,nacc;   pTrk->GetHMPIDmip(x,y,q,nacc);
 120     Printf("Track %02i with p %7.2f with ThetaCer %5.3f with %i photons",iTrk,pTrk->GetP(),pTrk->GetHMPIDsignal(),nacc);
 121   }
 122 }//PrintEsd()
 123 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 124 void DrawChamber(Int_t iCh)
 125 {//used by Draw() to Draw() chamber structure
 126   gPad->Range(-10,-10,AliHMPIDParam::SizeAllX()+5,AliHMPIDParam::SizeAllY()+5);
 127   if(iCh>=0){TLatex txt; txt.SetTextSize(0.1); txt.DrawLatex(-5,-5,Form("%i",iCh));}
 128
 129   for(Int_t iPc=AliHMPIDParam::kMinPc;iPc<=AliHMPIDParam::kMaxPc;iPc++){
 130     TBox *pBox=new TBox(AliHMPIDParam::MinPcX(iPc),AliHMPIDParam::MinPcY(iPc),
 131                         AliHMPIDParam::MaxPcX(iPc),AliHMPIDParam::MaxPcY(iPc));
 132     pBox->SetFillStyle(0);  pBox->Draw();
 133   }//PC loop
 134 }//DrawChamber()
 135 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 136 void DrawLegend()
 137 {//used by Draw() to draw legend
 138   Int_t nTxC=0,nMip=0,nCko=0,nFee=0,nDig=0,nClu=0;
 139   for(Int_t ch=0;ch<7;ch++){
 140     nTxC+=fRenTxC[ch]->GetN();
 141     nMip+=fRenMip[ch]->GetN();
 142     nCko+=fRenCko[ch]->GetN();
 143     nFee+=fRenFee[ch]->GetN();
 144     nDig+=fRenDig[ch]->GetN();
 145     nClu+=fRenClu[ch]->GetN();
 146   }
 147   TLegend *pLeg=new TLegend(0.2,0.2,0.8,0.8);
 148   pLeg->SetHeader(Form("Event %i Total %i",fEvt,fNevt));
 149   pLeg->AddEntry(fRenTxC[0],Form("TRKxPC %i"     ,nTxC),"p");
 150   pLeg->AddEntry(fRenMip[0],Form("Mip hits %i"   ,nMip),"p");
 151   pLeg->AddEntry(fRenCko[0],Form("Ckov hits %i"  ,nCko),"p");
 152   pLeg->AddEntry(fRenFee[0],Form("Feed hits %i"  ,nFee),"p");
 153   pLeg->AddEntry(fRenDig[0],Form("Digs %i"       ,nDig),"p");
 154   pLeg->AddEntry(fRenClu[0],Form("Clus %i"       ,nClu),"p");
 155   pLeg->Draw();
 156 }//DrawLegend()
 157 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 158 void Draw()
 159 {//draws all the objects of current event in given canvas
 160   for(Int_t iCh=0;iCh<7;iCh++){//chambers loop
 161     switch(iCh){
 162       case 6: fCanvas->cd(1); break; case 5: fCanvas->cd(2); break;
 163       case 4: fCanvas->cd(4); break; case 3: fCanvas->cd(5); break; case 2: fCanvas->cd(6); break;
 164                                      case 1: fCanvas->cd(8); break; case 0: fCanvas->cd(9); break;
 165     }
 166     gPad->SetEditable(kTRUE); gPad->Clear(); DrawChamber(iCh);
 167     fRenTxC[iCh]->Draw();
 168     fRenMip[iCh]->Draw();
 169     fRenFee[iCh]->Draw();
 170     fRenCko[iCh]->Draw();
 171     fRenRin[iCh]->Draw("CLP");
 172     fRenDig[iCh]->Draw();
 173     fRenClu[iCh]->Draw();
 174     gPad->SetEditable(kFALSE);
 175   }//chambers loop
 176
 177   fCanvas->cd(3);  gPad->Clear(); DrawLegend();
 178 }//Draw()
 179 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 180 void RenderHit(TClonesArray *pHitLst)
 181 {//used by ReadEvent() and SimulateEvent() to render hits to polymarker structures, one per chamber
 182   for(Int_t iHit=0;iHit<pHitLst->GetEntries();iHit++){       //hits loop
 183     AliHMPIDHit *pHit = (AliHMPIDHit*)pHitLst->At(iHit); Int_t ch=pHit->Ch(); Float_t x=pHit->LorsX(); Float_t y=pHit->LorsY();    //get current hit
 184     switch(pHit->Pid()){
 185       case 50000050: fRenCko[ch]->SetNextPoint(x,y);break;
 186       case 50000051: fRenFee[ch]->SetNextPoint(x,y);break;
 187       default:       fRenMip[ch]->SetNextPoint(x,y);break;
 188     }//switch hit PID
 189   }//hits loop for this entry
 190 }//RenderHits()
 191 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 192 void RenderDig(TObjArray *pDigLst)
 193 {//used by ReadEvent() and SimulateEvent() to render digs to Tbox structures, one per chamber
 194   for(Int_t iCh=0;iCh<=6;iCh++){                                    //chambers loop
 195     TClonesArray *pDigCham=(TClonesArray*)pDigLst->At(iCh);         //get digs list for this chamber
 196     for(Int_t iDig=0;iDig<pDigCham->GetEntries();iDig++){            //digs loop
 197       AliHMPIDDigit *pDig = (AliHMPIDDigit*)pDigCham->At(iDig); Float_t x=pDig->LorsX(); Float_t y=pDig->LorsY();    //get current hit
 198       fRenDig[iCh]->SetNextPoint(x,y);
 199     }
 200   }//hits loop for this entry
 201 }//RenderHits()
 202 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 203 void RenderClu(TObjArray *pClus)
 204 {//used by ReadEvent() and SimulateEvent() to render clusters to polymarker structures, one per chamber
 205   for(Int_t iCh=0;iCh<=6;iCh++){                                     //chambers loop
 206     TClonesArray *pClusCham=(TClonesArray*)pClus->At(iCh);           //get clusters list for this chamber
 207     for(Int_t iClu=0;iClu<pClusCham->GetEntries();iClu++){           //clusters loop
 208       AliHMPIDCluster *pClu = (AliHMPIDCluster*)pClusCham->At(iClu); //get current cluster
 209       fRenClu[iCh]->SetNextPoint(pClu->X(),pClu->Y());
 210     }//switch hit PID
 211   }//hits loop for this entry
 212 }//RenderClus()
 213 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 214 void RenderEsd(AliESDEvent *pEsd)
 215 {//used by ReadEvent() or SimulateEvent() to render ESD to polymarker structures for rings and intersections one per chamber
 216   AliHMPIDRecon rec;
 217   for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){//tracks loop to collect cerenkov rings and intersection points
 218     AliESDtrack *pTrk=pEsd->GetTrack(iTrk);    Int_t ch=pTrk->GetHMPIDcluIdx(); //get track and chamber intersected by it
 219     if(ch<0) continue;                                                          //this track does not intersect any chamber
 220     Float_t thRa,phRa,xRa,yRa; pTrk->GetHMPIDtrk(xRa,yRa,thRa,phRa);            //get info on current track
 221     ch/=1000000;
 222     Float_t xPc=0,yPc=0; AliHMPIDTracker::IntTrkCha(pTrk,xPc,yPc);              //find again intersection of track with PC--> it is not stored in ESD!
 223     fRenTxC[ch]->SetNextPoint(xPc,yPc);                                            //add this intersection point
 224     Float_t ckov=pTrk->GetHMPIDsignal();                                        //get ckov angle stored for this track
 225     if(ckov>0){
 226       rec.SetTrack(xRa,yRa,thRa,phRa);
 227       for(Int_t j=0;j<100;j++){
 228         TVector2 pos; pos=rec.TracePhot(ckov,j*0.0628);
 229        if(!AliHMPIDParam::IsInDead(pos.X(),pos.Y())) fRenRin[ch]->SetNextPoint(pos.X(),pos.Y());
 230       }
 231     }//if ckov is valid
 232   }//tracks loop
 233 }//RenEsd()
 234 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 235 void SimulateEsd(AliESDEvent *pEsd)
 236 {
 237   TParticle part; TLorentzVector mom;
 238   for(Int_t iTrk=0;iTrk<100;iTrk++){//stack loop
 239     part.SetPdgCode(kProton);
 240     part.SetProductionVertex(0,0,0,0);
 241     Double_t eta= -0.2+gRandom->Rndm()*0.4; //rapidity is random [-0.2,+0.2]
 242     Double_t phi= gRandom->Rndm()*60.*TMath::DegToRad();   //phi is random      [ 0  , 60 ] degrees
 243     mom.SetPtEtaPhiM(5,eta,phi,part.GetMass());
 244     part.SetMomentum(mom);
 245     AliESDtrack trk(&part);
 246     pEsd->AddTrack(&trk);
 247   }//stack loop
 248 }//EsdFromStack()
 249 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 250 void SimulateHits(AliESDEvent *pEsd, TClonesArray *pHits)
 251 {//used by SimulateEvent to simulate hits out from provided ESD
 252   const Int_t kCerenkov=50000050;
 253   const Int_t kFeedback=50000051;
 254
 255   AliHMPIDRecon rec;
 256   Float_t eMip=200e-9,ePho=7.5e-9;
 257   Int_t hc=0;
 258   for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){//tracks loop
 259     AliESDtrack *pTrk=pEsd->GetTrack(iTrk);
 260     Float_t xRa,yRa;
 261     Int_t ch=AliHMPIDTracker::IntTrkCha(pTrk,xRa,yRa);
 262     if(ch<0) continue; //this track does not hit HMPID
 263     Float_t beta = pTrk->GetP()/(TMath::Sqrt(pTrk->GetP()*pTrk->GetP()+0.938*0.938));
 264     Float_t ckov=TMath::ACos(1./(beta*1.292));
 265
 266     Float_t theta,phi,xPc,yPc,; pTrk->GetHMPIDtrk(xPc,yPc,theta,phi); rec.SetTrack(xRa,yRa,theta,phi);
 267
 268     if(!AliHMPIDParam::IsInDead(xPc,yPc)) new((*pHits)[hc++]) AliHMPIDHit(ch,eMip,kProton  ,iTrk,xPc,yPc);                 //mip hit
 269     Int_t nPhots = (Int_t)(20.*TMath::Power(TMath::Sin(ckov),2)/TMath::Power(TMath::Sin(TMath::ACos(1./1.292)),2));
 270     for(int i=0;i<nPhots;i++){
 271       TVector2 pos;
 272       pos=rec.TracePhot(ckov,gRandom->Rndm()*TMath::TwoPi());
 273       if(!AliHMPIDParam::IsInDead(pos.X(),pos.Y())) new((*pHits)[hc++]) AliHMPIDHit(ch,ePho,kCerenkov,iTrk,pos.X(),pos.Y());
 274     }                      //photon hits
 275     for(int i=0;i<3;i++){//feedback photons
 276       Float_t x=gRandom->Rndm()*160; Float_t y=gRandom->Rndm()*150;
 277       if(!AliHMPIDParam::IsInDead(x,y)) new((*pHits)[hc++]) AliHMPIDHit(ch,ePho,kFeedback,iTrk,x,y);                 //feedback hits
 278     }//photon hits loop
 279   }//tracks loop
 280 }//SimulateHits()
 281 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 282 void DoZoom(Int_t evt, Int_t px, Int_t py, TObject *)
 283 {
 284   if(evt!=5 && evt!=6) return; //5- zoom in 6-zoom out
 285   const Int_t minZoom=64;
 286   const Int_t maxZoom=2;
 287   static Int_t zoom=minZoom; //zoom level
 288   if(evt==5&&zoom==maxZoom) return;
 289   if(evt==6&&zoom==minZoom) return;
 290
 291  // if(!obj->IsA()->InheritsFrom("TPad")) return;  //current object is not pad
 292   TVirtualPad *pPad=gPad->GetSelectedPad();
 293   if(pPad->GetNumber()==3 || pPad->GetNumber()==7) return; //current pad is wrong
 294
 295  // Printf("evt=%i (%i,%i) %s",evt,px,py,obj->GetName());
 296
 297   Float_t x=pPad->AbsPixeltoX(px); Float_t y=pPad->AbsPixeltoY(py);
 298
 299   if(evt==5){ zoom=zoom/2;     pPad->Range(x-zoom*2,y-zoom*2,x+zoom*2,y+zoom*2);} //zoom in
 300   else      { zoom=zoom*2;     pPad->Range(x-zoom*2,y-zoom*2,x+zoom*2,y+zoom*2);} //zoom out
 301   if(zoom==minZoom) pPad->Range(-10,-10,AliHMPIDParam::SizeAllX()+5,AliHMPIDParam::SizeAllY()+5);
 302   ((TCanvas *)gTQSender)->SetTitle(Form("zoom x%i",minZoom/zoom));
 303   pPad->Modified();
 304   pPad->Update();
 305 }
 306 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 307 void ReadEvent()
 308 {//used by NextEvent()  to read curent event and construct all render elements
 309   if(fNevt && fEvt>=fNevt) fEvt=0; //loop over max event
 310
 311   if(fHitFile){
 312     if(fHitTree) delete fHitTree;   fHitTree=(TTree*)fHitFile->Get(Form("Event%i/TreeH",fEvt));
 313
 314                           fHitTree->SetBranchAddress("HMPID",&fHitLst);
 315     for(Int_t iEnt=0;iEnt<fHitTree->GetEntries();iEnt++){
 316                           fHitTree->GetEntry(iEnt);
 317       RenderHit(fHitLst);
 318     }//prim loop
 319   }//if hits file
 320
 321   if(fDigFile){
 322     if(fDigTree) delete fDigTree;   fDigTree=(TTree*)fDigFile->Get(Form("Event%i/TreeD",fEvt));
 323     for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) fDigTree->SetBranchAddress(Form("HMPID%i",iCh),&(*fDigLst)[iCh]);
 324     fDigTree->GetEntry(0);
 325     RenderDig(fDigLst);
 326   }//if digs file
 327
 328   if(fCluFile){
 329     if(fCluTree) delete fCluTree; fCluTree=(TTree*)fCluFile->Get(Form("Event%i/TreeR",fEvt));
 330     for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) fCluTree->SetBranchAddress(Form("HMPID%i",iCh),&(*fCluLst)[iCh]);
 331     fCluTree->GetEntry(0);
 332     RenderClu(fCluLst);
 333   }//if clus file
 334
 335   if(fEsdFile){//if ESD file open
 336     fEsdTree->GetEntry(fEvt);
 337     RenderEsd(fEsd);
 338   }//if ESD file
 339 }//ReadEvent()
 340 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 341 void SimulateEvent()
 342 {// used by NextEvent() to simulate all info
 343   AliCDBManager* pCDB = AliCDBManager::Instance();  pCDB->SetDefaultStorage("local://$HOME"); pCDB->SetRun(0);
 344   AliCDBEntry *pNmeanEnt=pCDB->Get("HMPID/Calib/Nmean");
 345
 346   SimulateEsd(fEsd);
 347   SimulateHits(fEsd,fHitLst);
 348                  AliHMPIDv1::Hit2Sdi(fHitLst,fSdiLst);
 349           AliHMPIDDigitizer::Sdi2Dig(fSdiLst,fDigLst);
 350       AliHMPIDReconstructor::Dig2Clu(fDigLst,fCluLst);
 351             AliHMPIDTracker::Recon(fEsd,fCluLst,(TObjArray*)pNmeanEnt->GetObject());
 352
 353   RenderHit(fHitLst);
 354   RenderClu(fCluLst);
 355   RenderEsd(fEsd);
 356 }//SimulateEvent()
 357 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 358 void NextEvent()
 359 {
 360   fEvt++;
 361   ClearRenders();
 362   switch(fType){
 363     case 1: ReadEvent();break;
 364 //    case 2: ReadCosmic(); break;
 365     case 3: SimulateEvent();     break;
 366     default:                 return;
 367   }
 368   Draw();
 369 }
 370 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 371 void Hdisp()
 372 {//display events from files if any in current directory or simulated events
 373   AliHMPIDParam::Instance();                          // first invocation of AliHMPIDParam to initialize geometry...
 374   CreateContainers();
 375   CreateRenders();
 376
 377   TString title="Session with";
 378   if(gSystem->IsFileInIncludePath("HMPID.Hits.root")){// tries to open hits
 379     fHitFile=TFile::Open("HMPID.Hits.root");       fNevt=fHitFile->GetNkeys(); fType=1; title+=Form(" HITS-%i ",fNevt);
 380   }
 381
 382   if(gSystem->IsFileInIncludePath("HMPID.Digits.root")){// tries to open clusters
 383      fDigFile=TFile::Open("HMPID.Digits.root");  fNevt=fDigFile->GetNkeys(); fType=1;  title+=Form(" DIGITS-%i ",fNevt);
 384    }
 385
 386   if(gSystem->IsFileInIncludePath("HMPID.RecPoints.root")){// tries to open clusters
 387     fCluFile=TFile::Open("HMPID.RecPoints.root");  fNevt=fCluFile->GetNkeys(); fType=1;  title+=Form(" CLUSTERS-%i ",fNevt);
 388    }
 389
 390   if(gSystem->IsFileInIncludePath("AliESDs.root")){
 391     fEsdFile=TFile::Open("AliESDs.root");
 392     fEsdTree=(TTree*)fEsdFile->Get("esdTree");
 393     fEsd->ReadFromTree(fEsdTree); fEsd->GetStdContent();                       //clm: new ESD schema: see Task Force meeting 20th June, 2007
 394     fNevt=fEsdTree->GetEntries(); fType=1;  title+=Form(" ESD-%i ",fNevt);
 395
 396     //clm: we need to set the magnetic field
 397     if(gSystem->IsFileInIncludePath("galice.root")){
 398     if(gAlice) delete gAlice;
 399     gAL=AliRunLoader::Open();
 400     gAL->LoadgAlice();
 401     AliHMPIDTracker::SetFieldMap(gAL->GetAliRun()->Field(),kTRUE);
 402    }else{
 403           Printf("=============== NO galice file! Magnetic field for ESD tracking is: %f ===============",AliTracker::GetBz());
 404      }
 405
 406   }
 407
 408   if(gSystem->IsFileInIncludePath("cosmic.root")){                          //clm: Check if cosmic file is in the folder
 409     fCosFile=TFile::Open("cosmic.root");  fCosTree=(TTree*)fCosFile->Get("cosmic");  fNevt=fCosTree->GetEntries();  fType=2;
 410     fCosTree->SetBranchAddress("Digs",&fDigLst);   fCosTree->SetBranchAddress("Clus",&fCluLst);
 411   }
 412
 413   fCanvas=new TCanvas("all","",600,400); fCanvas->Divide(3,3,0,0);//  pAll->ToggleEditor();
 414   fCanvas->Connect("ProcessedEvent(Int_t,Int_t,Int_t,TObject*)",0,0,"DoZoom(Int_t,Int_t,Int_t,TObject*)");
 415   fCanvas->cd(7);
 416   switch(fType){
 417     case 1: fCanvas->SetTitle(title.Data());
 418                          TButton *pNxtBtn=new TButton("Next"      ,"NextEvent()",0.0,0.0,0.3,0.1); pNxtBtn->Draw();
 419             if(fHitFile){TButton *pHitBtn=new TButton("Print hits","PrintHits()",0.0,0.2,0.3,0.3); pHitBtn->Draw();}
 420             if(fDigFile){TButton *pDigBtn=new TButton("Print digs","PrintDigs()",0.0,0.4,0.3,0.5); pDigBtn->Draw();}
 421             if(fCluFile){TButton *pCluBtn=new TButton("Print clus","PrintClus()",0.0,0.6,0.3,0.7); pCluBtn->Draw();}
 422             if(fEsdFile){TButton *pEsdBtn=new TButton("Print ESD" ,"PrintEsd()" ,0.0,0.8,0.3,0.9); pEsdBtn->Draw();}
 423
 424     break;
 425     case 2: fCanvas->SetTitle("COSMIC");
 426                          TButton *pCosBtn=new TButton("Next"      ,"NextEvent()",0.0,0.0,0.3,0.1); pCosBtn->Draw();
 427
 428     break;
 429     case 3: fCanvas->SetTitle("SIMULATION");
 430             TButton *pSimBtn=new TButton("Simulate"  ,"NextEvent()",0.0,0.0,0.3,0.1); pSimBtn->Draw();
 431             TButton *pHitBtn=new TButton("Print hits","PrintHits()",0.0,0.2,0.3,0.3); pHitBtn->Draw();
 432             TButton *pDigBtn=new TButton("Print digs","PrintDigs()",0.0,0.4,0.3,0.5); pDigBtn->Draw();
 433             TButton *pCluBtn=new TButton("Print clus","PrintClus()",0.0,0.6,0.3,0.7); pCluBtn->Draw();
 434             TButton *pEsdBtn=new TButton("Print ESD" ,"PrintEsd()" ,0.0,0.8,0.3,0.9); pEsdBtn->Draw();
 435     break;
 436   }
 437
 438
 439   NextEvent();
 440
 441
 442 }//Hdisp()
 443 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++