ITS/SPDclusterTest.C

   1 void SPDclusterTest(Int_t evNumber1=0,Int_t evNumber2=0){
   2  //
   3  //  macro to monitor the SPD digitization and clusterization done with
   4  //  the Bari/Salerno model
   5  //
   6  //  R. Caliandro 15/05/2001
   7  //
   8  //
   9  //--plots displayed:
  10  //
  11  //--pag1:  number of hits     per SPD detector (1-->250)
  12  //         number of hits     per SPD detector (1-->250)
  13  //         number of clusters per SPD detector (1-->250)
  14  //
  15  //--pag2:  r-phi cluster length layer 1 (red)
  16  //         z     cluster length layer 1 (red)
  17  //         r-phi cluster length layer 2 (blue)
  18  //         z     cluster length layer 2 (blue)
  19  //
  20  //--pag3:  r-phi resolution layer 1 (red)
  21  //         z     resolution layer 1 (red)
  22  //         r-phi resolution layer 2 (blue)
  23  //         z     resolution layer 2 (blue)
  24  //
  25  //--pag4:  Cluster shape analysis for clusters of 1, 2 and 3 digits
  26  //         zdim versus xdim for clusters of 4 digits
  27  //
  28  // input file name, digitized and clusterized
  29  char *filein="galice.root";
  30  // output file name, containing histograms
  31  char *fileout="SPD_his.root";
  32  // flag for debugging: 0=no debugging, 1=debugging
  33  Int_t debug=0;
  34
  35
  36  // Dynamically link some shared libs
  37  if (gClassTable->GetID("AliRun") < 0) {
  38     gROOT->LoadMacro("loadlibs.C");
  39     loadlibs();
  40  } else {
  41     delete gAlice;
  42     gAlice=0;
  43  }
  44
  45
  46  // Connect the Root Galice file containing Geometry, Kine and Hits
  47  TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject(filein);
  48  if (!file) file = new TFile(filein);
  49
  50  // Get AliRun object from file or create it if not on file
  51  if (!gAlice) {
  52     gAlice = (AliRun*)file->Get("gAlice");
  53     if (gAlice) printf("AliRun object found on file\n");
  54     if (!gAlice) gAlice = new AliRun("gAlice","Alice test program");
  55  }
  56
  57
  58 //=======================================================
  59 //--booking of ntuples
  60
  61 //--ntuple for each detector
  62   TNtuple *ntuple2 = new TNtuple("ntuple2","","ndet:lay:lad:det:nhits:ndig:nclus");
  63 //--ntuple for each cluster
  64   TNtuple *ntuple = new TNtuple("ntuple","","ndet:iclus:ndigclus:xdim:zdim:xdiff:zdiff:anglex:anglez:pmom:errx:errz");
  65
  66 //--booking of histograms
  67 //layer 1
  68   TH1F *hist1n1 = new TH1F("hist1n1","xdim",15,0.5,15.5);
  69   TH1F *hist2n1 = new TH1F("hist2n1","zdim",10,0.5,10.5);
  70   TH1F *hist3n1 = new TH1F("hist3n1","dig/clus",20,0.5,20.5);
  71   TH1F *hist4n1 = new TH1F("hist4n1","errx",100,0,0.01);
  72   TH1F *hist5n1 = new TH1F("hist5n1","errz",500,0,0.05);
  73   TH2F *hist7n1 = new TH2F("hist7n1","xdim:delx",80,0,800.,15,0.5,15.5);
  74   TH2F *hist8n1 = new TH2F("hist8n1","zdim:delz",180,0,1800.,10,0.5,10.5);
  75 //layer 2
  76   TH1F *hist1n2 = new TH1F("hist1n2","xdim",15,0.5,15.5);
  77   TH1F *hist2n2 = new TH1F("hist2n2","zdim",10,0.5,10.5);
  78   TH1F *hist3n2 = new TH1F("hist3n2","dig/clus",20,0.5,20.5);
  79   TH1F *hist4n2 = new TH1F("hist4n2","errx",100,0,0.01);
  80   TH1F *hist5n2 = new TH1F("hist5n2","errz",500,0,0.05);
  81   TH2F *hist7n2 = new TH2F("hist7n2","xdim:delx",80,0,800.,15,0.5,15.5);
  82   TH2F *hist8n2 = new TH2F("hist8n2","zdim:delz",180,0,1800.,10,0.5,10.5);
  83 //--resolution
  84   TH1F *hist1 = new TH1F("hist1","xdiff",200,-100,100);
  85   TH1F *hist3 = new TH1F("hist3","xdiff",200,-100,100);
  86   TH1F *hist2 = new TH1F("hist2","zdiff",170,-850,850);
  87   TH1F *hist4 = new TH1F("hist4","zdiff",170,-850,850);
  88 //--momentum
  89   TH1F *hist5 = new TH1F("hist5","pmom",200,0,2000);
  90 //--rapidity
  91   TH1F *hist6 = new TH1F("hist6","rapidity",60,-3,3);
  92   TH1F *hist6b= new TH1F("hist6b","rapidity - charged tracks",60,-3,3);
  93   TH1F *hist6b1= new TH1F("hist6b1","rapidity - charged tracks SPD",60,-3,3);
  94 //--pseudo-rapidity
  95   TH1F *hist6p = new TH1F("hist6p","eta - charged tracks ",60,-3,3);
  96   TH1F *hist6p1 = new TH1F("hist6p1","eta - charged tracks SPD ",60,-3,3);
  97   TH1F *hist6p2 = new TH1F("hist6p2","eta - charged tracks SPD 2 ",60,-3,3);
  98 //--resolution vs angle
  99   TH1F *hist11n1=new TH1F("hist11n1","anglex - layer 1",180,-90,90);
 100   TH1F *hist11n2=new TH1F("hist11n2","anglex - layer 2",180,-90,90);
 101   TH1F *hist12n1=new TH1F("hist12n1","anglez - layer 1",360,-180,180);
 102   TH1F *hist12n2=new TH1F("hist12n2","anglez - layer 2",360,-180,180);
 103   TH2F *hist13n1=new TH2F("hist13n1","xidff:anglex",20,-15,15,200,-100,100);
 104   TH2F *hist13n2=new TH2F("hist13n2","xidff:anglex",20,-30,-15,200,-100,100);
 105   TH2F *hist14n1=new TH2F("hist14n1","zidff:anglez",18,-90,90,170,-850,850);
 106   TH2F *hist14n2=new TH2F("hist14n2","zidff:anglez",18,-90,90,170,-850,850);
 107 //--histograms for cluster shape analysis
 108   TH1F *histsp1=new TH1F("histsp1","Cluster shape (1)",10,0.5,10.5);
 109   TH2F *histsp2=new TH2F("histsp2","Cluster shape (2)",5,0.5,5.5,5,0.5,5.5);
 110 //=======================================================
 111
 112  //loop over events
 113  for (int nev=0; nev<= evNumber2; nev++) {
 114    Int_t nparticles = gAlice->GetEvent(nev);
 115    cout << "nev         " <<nev<<endl;
 116    cout << "nparticles  " <<nparticles<<endl;
 117    if (nev < evNumber1) continue;
 118    if (nparticles <= 0) return;
 119
 120    TTree *TH        = gAlice->TreeH();
 121    Int_t ntracks    = TH->GetEntries();
 122    cout << "ntracks  " <<ntracks<<endl;
 123
 124    // Get pointers to Alice detectors and Digit containers
 125    AliITS *ITS  = (AliITS *)gAlice->GetModule("ITS");
 126    //to get the segmentation pointer
 127    AliITSDetType *iDetType=ITS->DetType(0);
 128    AliITSsegmentationSPD *seg=(AliITSsegmentationSPD*)iDetType->GetSegmentationModel();
 129    //TClonesArray *Particles = gAlice->Particles();
 130    if(!ITS) return;
 131
 132    // fill modules with sorted by module hits
 133    Int_t nmodules;
 134    ITS->InitModules(-1,nmodules);
 135    ITS->FillModules(nev,evNumber2,nmodules," "," ");
 136
 137    // get pointer to modules array
 138    TObjArray *mods = ITS->GetModules();
 139    AliITShit *itsHit;
 140
 141
 142    //get the Tree for clusters
 143    ITS->GetTreeC(nev);
 144    TTree *TC=ITS->TreeC();
 145    //TC->Print();
 146    Int_t nent=TC->GetEntries();
 147    printf("Found %d entries in the tree of clusters)\n",nent);
 148    TClonesArray *ITSclusters = ITS->ClustersAddress(0);
 149    printf("ITSclusters %p\n",ITSclusters);
 150
 151    //get the Tree for digits
 152    TTree *TD = gAlice->TreeD();
 153    //TD->Print();
 154    Int_t nentd=TD->GetEntries();
 155    printf("Found %d entries in the tree of digits)\n",nentd);
 156    TObjArray *fBranches=TD->GetListOfBranches();
 157    TBranch *branch = (TBranch*)fBranches->UncheckedAt(0);
 158    printf ("branch %p entries %d \n",branch,branch->GetEntries());
 159    TClonesArray *ITSdigits  = ITS->DigitsAddress(0);
 160    printf ("ITSdigits %p \n",ITSdigits);
 161
 162    //get the Tree for rec points
 163    TTree *TR = gAlice->TreeR();
 164    //TR->Print();
 165    Int_t nentr=TR->GetEntries();
 166    printf("Found %d entries in the tree of rec points)\n",nentr);
 167    TClonesArray *ITSrec  = ITS->RecPoints();
 168    printf ("ITSrec %p \n",ITSrec);
 169    AliITSRecPoint  *recp;
 170
 171   // calculus of rapidity distribution for the generated tracks
 172   gAlice-> ResetHits();
 173   TParticle *particle;
 174   for (Int_t track=0; track<ntracks; track++)
 175   {
 176     particle  = (TParticle*)gAlice->Particle(track);
 177     Int_t ikparen   = particle -> GetFirstMother();
 178     Double_t charge = particle -> GetPDG() ->Charge();
 179     charge = charge/3.;  //charge is multiplied by 3 in PDG
 180     Double_t mass   = particle -> GetPDG() -> Mass();
 181     Double_t eta    = particle -> Eta();
 182     Int_t pdgcode   = particle -> GetPdgCode();
 183     char* title     = particle -> GetTitle();
 184     if (ikparen<0)
 185     {
 186       Double_t part_ene = particle->Energy();
 187       Double_t part_pz  = particle->Pz();
 188       Double_t rapid;
 189       if (part_ene != part_pz)
 190       {
 191         rapid=0.5*TMath::Log((part_ene+part_pz)/(part_ene-part_pz));
 192       }
 193       else {
 194         rapid = 1.e30;
 195       }
 196       // filling of the rapidity histogram
 197       hist6->Fill( (Float_t) rapid);
 198       if( charge != 0 ) {
 199         hist6b->Fill( (Float_t) rapid);
 200         hist6p->Fill( (Float_t) eta);
 201       }
 202 //          printf("charge= %f, mass = %f , pdg= %d, title = %s\n",
 203 //                    charge,mass,pdgcode,title);
 204     }
 205   }
 206
 207   AliITSgeom *g = ((AliITS *)ITS)->GetITSgeom();
 208   Int_t lay, lad, det;
 209   //printf("Starts loop on SPD detectors\n");
 210
 211
 212   //loop over the pixel detectors index=0-79     (1-20)*4 layer 1
 213   //                              index=80-239   (1-40)*4 layer 2
 214   for (Int_t index=g->GetStartSPD();index<=g->GetLastSPD();index++)
 215 //  for (Int_t index=g->GetStartSPD();index<1;index++)  //debug
 216   {
 217
 218     g->GetModuleId(index,lay,lad,det);
 219     //printf("detector %d (lay=%d lad=%d det=%d)\n",index+1,lay,lad,det);
 220
 221     AliITSmodule *itsModule = (AliITSmodule*) mods->At(index);
 222     Int_t numofhits = itsModule->GetNhits();
 223     //printf("number of hits %d\n",numofhits);
 224     if(!numofhits) continue;
 225
 226     //---------- starts test on digits
 227     ITS->ResetDigits();
 228     TD->GetEvent(index);
 229     Int_t ndigits = ITSdigits->GetEntriesFast();
 230     //if (ndigits) printf("Found %d digits for module %d \n",ndigits,index+1);
 231     if (!ndigits) printf("no digits found \n");
 232
 233
 234
 235    if(debug==1) {
 236     //loop on digits
 237     for (Int_t digit=0;digit<ndigits;digit++) {
 238         ITSdigit   = (AliITSdigitSPD*)ITSdigits->UncheckedAt(digit);
 239         printf("digit=%d fCoord1=%d FCoord2=%d fSignal=%d fTracks=%d fHits=%d \n",digit,ITSdigit->fCoord1,ITSdigit->fCoord2,ITSdigit->fSignal,ITSdigit->fTracks[0],ITSdigit->fHits[0]);
 240      }
 241      cout<<"END  test for digits "<<endl;
 242     }
 243
 244
 245     //---------- starts test on clusters
 246     ITS->ResetClusters();
 247     TC->GetEvent(index);
 248     Int_t nclust = ITSclusters->GetEntries();
 249     //printf("Found %d clusters \n",nclust);
 250     if (!nclust) printf("no clusters found \n");
 251
 252
 253    if(debug==1) {
 254      //loop on clusters
 255      for (Int_t clu=0;clu<nclust;clu++)
 256      {
 257       //itsclu = (AliITSRawClusterSPD*) ITSclusters->UncheckedAt(clu);
 258       itsclu = (AliITSRawClusterSPD*) ITSclusters->At(clu);
 259       printf("cluster %d nZ=%f nX=%f Q=%f Z=%f X=%f\n",clu+1,itsclu->NclZ(),
 260                       itsclu->NclX(),itsclu->Q(),itsclu->Z(),itsclu->X());
 261      }
 262      cout<<"END  test for clusters "<<endl;
 263     }
 264
 265
 266
 267     //---------- starts test on rec points
 268     ITS->ResetRecPoints();
 269     TR->GetEvent(index);
 270     Int_t nrecpoints = ITSrec->GetEntries();
 271     //printf("Found %d recpoints for module %d \n",nrecpoints,index+1);
 272     if (!nrecpoints) printf("no recpoints found \n");
 273
 274    if(debug==1) {
 275     //loop on rec points
 276     for (Int_t irec=0;irec<nrecpoints;irec++) {
 277          recp   = (AliITSRecPoint*)ITSrec->UncheckedAt(irec);
 278         printf("%d %f %f %f %f  %d %d %d\n",irec+1,recp->GetX(),recp->GetZ(),
 279             recp->fSigmaX2,recp->fSigmaZ2,
 280             recp->fTracks[0],recp->fTracks[1],recp->fTracks[2]);
 281     }
 282    }
 283
 284     printf("Detector n.%d (%d hits) (%d digits) (%d clusters)\n",
 285                                          index+1,numofhits,ndigits,nclust);
 286
 287            // fill ntuple2
 288            ntuple2->Fill (   (Float_t) index+1,
 289                                      (Float_t) lay,
 290                                      (Float_t) lad,
 291                                      (Float_t) det,
 292                                      (Float_t) numofhits,
 293                                      (Float_t) ndigits,
 294                                      (Float_t) nclust);
 295
 296     Int_t xlow;
 297     Int_t zlow;
 298     Int_t xhigh;
 299     Int_t zhigh;
 300     Int_t colcenter;
 301     Int_t rowcenter;
 302
 303     // loop on clusters in each detector
 304     for (Int_t i=0; i<nclust; i++)
 305     {
 306
 307        irawclu = (AliITSRawClusterSPD*) ITSclusters->UncheckedAt(i);
 308        irecp   = (AliITSRecPoint*)ITSrec->UncheckedAt(i);
 309
 310        Int_t xdim = irawclu->NclX();
 311        Int_t zdim = irawclu->NclZ();
 312        Float_t errx = TMath::Sqrt(irecp->fSigmaX2);
 313        Float_t errz = TMath::Sqrt(irecp->fSigmaZ2);
 314        Float_t xcenter = irawclu->X();
 315        Float_t zcenter = irawclu->Z();
 316        Float_t ndigclus = irawclu->Q();
 317        Int_t itrackclus  = irecp->fTracks[0];
 318
 319      //Find the hits associated to the main track of the cluster
 320      // loop on hits in the detector
 321      for (Int_t hit=0; hit<numofhits; hit++)
 322      {
 323           AliITShit *itsHit  = (AliITShit*)itsModule->GetHit(hit);
 324           Int_t itrackhit = itsHit->GetTrack();
 325           //Take the same track index of the main track of the cluster
 326           if (itrackhit == itrackclus) {
 327                if (itsHit->GetTrackStatus()==66) {
 328                    Float_t x1l = 10000*itsHit->GetXL(); //in microns
 329                    Float_t y1l = 10000*itsHit->GetYL();
 330                    Float_t z1l = 10000*itsHit->GetZL();
 331                    Float_t p1x = 1000*itsHit->GetPXL(); //in MeV/c
 332                    Float_t p1y = 1000*itsHit->GetPYL();
 333                    Float_t p1z = 1000*itsHit->GetPZL();
 334                 }
 335                 else {
 336                    Float_t x2l = 10000*itsHit->GetXL();
 337                    Float_t y2l = 10000*itsHit->GetYL();
 338                    Float_t z2l = 10000*itsHit->GetZL();
 339                    Float_t p2x = 1000*itsHit->GetPXL();
 340                    Float_t p2y = 1000*itsHit->GetPYL();
 341                    Float_t p2z = 1000*itsHit->GetPZL();
 342
 343
 344                 }
 345           }
 346      }// end loop on hits on detector
 347
 348
 349      Float_t pmom=TMath::Sqrt(p1x*p1x+p1y*p1y+p1z*p1z);
 350      hist5->Fill(pmom);
 351
 352      Float_t dxhit = TMath::Abs(x2l-x1l);
 353      Float_t dzhit = TMath::Abs(z2l-z1l);
 354
 355      Float_t xmidhit = (x1l + x2l)/2;
 356      Float_t zmidhit = (z1l + z2l)/2;
 357
 358 //   printf("cluster n.%d: x=%f z=%f\n",i,xcenter,zcenter);
 359 //   printf("track n.%d: x1=%f x2=%f z1=%f z2=%f\n",itrackclus,
 360 //                 x1l, x2l, z1l, z2l);
 361
 362      // analysis of resolution vs angle
 363      if(index<80)
 364      {
 365            Float_t px = -p1x;
 366            Float_t py = -p1y;
 367      }
 368      else{
 369            Float_t px = p1x;
 370            Float_t py = p1y;
 371      }
 372      Float_t pz = p1z;
 373      // anglex is the angle in xy plane (local frame)
 374      Float_t anglex = atan2(px,py);
 375      // anglez is the angle in zy plane (local frame)
 376      Float_t anglez = atan2(pz,py);
 377      anglex *= 180.0/TMath::Pi(); // degrees
 378      anglez *= 180.0/TMath::Pi(); // degrees
 379
 380      if(xmidhit != 0  || zmidhit != 0)
 381      {
 382           Float_t xdiff = (xcenter - xmidhit);
 383           Float_t zdiff = (zcenter - zmidhit);
 384
 385           if(index<80)
 386           {
 387              // resolution plots
 388              hist1->Fill(xdiff);
 389              hist2->Fill(zdiff);
 390
 391              // plots of resolution vs angle
 392              hist11n1->Fill(anglex);
 393              hist12n1->Fill(anglez);
 394              hist13n1->Fill(anglex,xdiff);
 395              hist14n1->Fill(anglez,zdiff);
 396
 397           } else {
 398
 399              // resolution plots
 400              hist3->Fill(xdiff);
 401              hist4->Fill(zdiff);
 402
 403              // plots of resolution vs angle
 404              hist11n2->Fill(anglex);
 405              hist12n2->Fill(anglez);
 406              hist13n2->Fill(anglex,xdiff);
 407              hist14n2->Fill(anglez,zdiff);
 408
 409           }
 410        }
 411
 412        // fill the ntuple
 413        ntuple->Fill ( (Float_t) index,
 414                           (Float_t) i,
 415                           (Float_t) ndigclus,
 416                               (Float_t) xdim,
 417                               (Float_t) zdim,
 418                               (Float_t) xdiff,
 419                               (Float_t) zdiff,
 420                               (Float_t) anglex,
 421                               (Float_t) anglez,
 422                               (Float_t) pmom,
 423                                 errx,
 424                                 errz);
 425
 426        // other histograms
 427        if(index<80)
 428        {
 429           hist1n1->Fill((Float_t) xdim);
 430           hist2n1->Fill((Float_t) zdim);
 431           hist3n1->Fill(ndigclus);
 432           hist4n1->Fill(errx);
 433           hist5n1->Fill(errz);
 434           hist7n1->Fill(dxhit,(Float_t) xdim);
 435           hist8n1->Fill(dzhit,(Float_t) zdim);
 436
 437        } else {
 438           hist1n2->Fill((Float_t) xdim);
 439           hist2n2->Fill((Float_t) zdim);
 440           hist3n2->Fill(ndigclus);
 441           hist4n2->Fill(errx);
 442           hist5n2->Fill(errz);
 443           hist7n2->Fill(dxhit,(Float_t) xdim);
 444           hist8n2->Fill(dzhit,(Float_t) zdim);
 445        }
 446
 447        //histograms for cluster shape analysis
 448        Int_t xx;
 449        if(ndigclus<=3) {
 450           if(ndigclus==1) {
 451              xx=1;
 452           } elseif(ndigclus==2){
 453              if(zdim==2 && xdim==1) xx=2;
 454              if(zdim==1 && xdim==2) xx=3;
 455              if(zdim==2 && xdim==2) xx=4;
 456           } elseif(ndigclus==3){
 457              if(zdim==2 && xdim==2) xx=5;
 458              if(zdim==3 && xdim==1) xx=6;
 459              if(zdim==1 && xdim==3) xx=7;
 460              if(zdim==3 && xdim==3) xx=8;
 461              if(zdim==3 && xdim==2) xx=9;
 462              if(zdim==2 && xdim==3) xx=10;
 463           }
 464           histsp1->Fill((Float_t) xx);
 465        } elseif(ndigclus==4){
 466           histsp2->Fill((Float_t) xdim,(Float_t) zdim);
 467        }
 468
 469
 470     }//end loop on clusters
 471
 472  } //end loop on the SPD detectors
 473
 474 } //end loop on events
 475
 476
 477 //================== Plot the results ===================================
 478
 479 gROOT->Reset();
 480 gStyle->SetFillColor(0);
 481 gStyle->SetStatW(0.37);
 482 gStyle->SetStatH(0.22);
 483
 484 //----------------------------------------------------- page 1
 485 gStyle->SetOptLogy(0);
 486 gStyle->SetOptStat(1100);
 487
 488   TCanvas *c1 = new TCanvas("c1","hits, digits, clusters",200,10,700,780);
 489 c1->SetFillColor(0);
 490 c1->Divide(1,3);
 491     c1->cd(1);
 492       ntuple2->SetMarkerColor(kRed);
 493       ntuple2->SetMarkerStyle(20);
 494       ntuple2->SetMarkerSize(0.6);
 495       ntuple2->Draw("nhits:ndet","");
 496     c1->cd(2);
 497       ntuple2->SetMarkerColor(kBlue);
 498       ntuple2->Draw("ndig:ndet","");
 499     c1->cd(3);
 500       ntuple2->SetMarkerColor(6);
 501       ntuple2->Draw("nclus:ndet","");
 502
 503 //----------------------------------------------------- page 2
 504
 505   TCanvas *c2 = new TCanvas("c2","Cluster Lengths",200,10,700,780);
 506    //
 507    // Inside this canvas, we create 4 pads
 508    //
 509    pad1 = new TPad("pad1","xdim layer1"     ,0.01,0.51,0.49,0.99,10);
 510    pad2 = new TPad("pad2","zdim layer1"     ,0.51,0.51,0.99,0.99,10);
 511    pad3 = new TPad("pad3","xdim layer2"    ,0.01,0.01,0.49,0.49,10);
 512    pad4 = new TPad("pad4","zdim layer2"    ,0.51,0.01,0.99,0.49,10);
 513    pad1->Draw();
 514    pad2->Draw();
 515    pad3->Draw();
 516    pad4->Draw();
 517 //
 518    gStyle->SetStatW(0.40);
 519    gStyle->SetStatH(0.20);
 520    gStyle->SetStatColor(42);
 521    gStyle->SetOptStat(111110);
 522 //  gStyle->SetOptFit(1);
 523
 524    pad1->cd();
 525    pad1->SetLogy();
 526    hist1n1->Draw();
 527    hist1n1->SetLineWidth(2);
 528    hist1n1->SetLineColor(kRed);
 529    hist1n1->GetXaxis()->SetNdivisions(110);
 530    hist1n1->GetYaxis()->SetLabelSize(0.06);
 531    c2->Update();
 532    //
 533    pad2->cd();
 534    pad2->SetLogy();
 535    hist2n1->Draw();
 536    hist2n1->SetLineWidth(2);
 537    hist2n1->SetLineColor(kRed);
 538    hist2n1->GetXaxis()->SetNdivisions(110);
 539    hist2n1->GetYaxis()->SetLabelSize(0.06);
 540    c2->Update();
 541    //
 542    pad3->cd();
 543    pad3->SetLogy();
 544    hist1n2->Draw();
 545    hist1n2->SetLineWidth(2);
 546    hist1n2->SetLineColor(kBlue);
 547    hist1n2->GetXaxis()->SetNdivisions(110);
 548    hist1n2->GetYaxis()->SetLabelSize(0.06);
 549    c2->Update();
 550    //
 551    pad4->cd();
 552    pad4->SetLogy();
 553    hist2n2->Draw();
 554    hist2n2->SetLineColor(kBlue);
 555    hist2n2->SetLineWidth(2);
 556    hist2n2->GetXaxis()->SetNdivisions(110);
 557    hist2n2->GetYaxis()->SetLabelSize(0.06);
 558    c2->Update();
 559    //
 560 //----------------------------------------------------- page 3
 561
 562   TCanvas *c3 = new TCanvas("c3","Resolutions",200,10,700,780);
 563    //
 564    // Inside this canvas, we create 4 pads
 565    //
 566    pad1 = new TPad("pad1","xdiff layer1"     ,0.01,0.51,0.49,0.99,10);
 567    pad2 = new TPad("pad2","zdiff layer1"     ,0.51,0.51,0.99,0.99,10);
 568    pad3 = new TPad("pad3","xdiff layer2"    ,0.01,0.01,0.49,0.49,10);
 569    pad4 = new TPad("pad4","zdiff layer2"    ,0.51,0.01,0.99,0.49,10);
 570    pad1->Draw();
 571    pad2->Draw();
 572    pad3->Draw();
 573    pad4->Draw();
 574 //
 575    gStyle->SetStatW(0.20);
 576    gStyle->SetStatH(0.20);
 577    gStyle->SetStatColor(42);
 578    gStyle->SetOptStat(0);
 579    gStyle->SetOptFit(1);
 580
 581    pad1->cd();
 582    hist1->Draw();
 583    hist1->SetLineColor(kRed);
 584    hist1->Fit("gaus");
 585    c3->Update();
 586    //
 587    pad2->cd();
 588    hist2->Draw();
 589    hist2->SetLineColor(kRed);
 590    hist2->Fit("gaus");
 591    c3->Update();
 592    //
 593    pad3->cd();
 594    hist3->Draw();
 595    hist3->SetLineColor(kBlue);
 596    hist3->Fit("gaus");
 597    c3->Update();
 598    //
 599    pad4->cd();
 600    hist4->Draw();
 601    hist4->SetLineColor(kBlue);
 602    hist4->Fit("gaus");
 603    c3->Update();
 604
 605 //----------------------------------------------------- page 4
 606   TCanvas *c4 = new TCanvas("c4","Cluster Shape Analysis",200,10,700,780);
 607 //
 608 gStyle->SetOptStat(0);
 609 c4->SetFillColor(0);
 610 c4->Divide(1,2);
 611
 612     c4->cd(1);
 613     c4_1->SetLogy();
 614       histsp1->Draw();
 615     c4->cd(2);
 616     c4_2->Divide(2,1);
 617     c4_2->cd(1);
 618       histsp2->Draw("box");
 619     c4_2->cd(2);
 620      clustershape();
 621
 622
 623
 624
 625 //================== Store the histograms ===================================
 626
 627   //to write the histograms into a .root file
 628   TFile outfile(fileout,"RECREATE");
 629
 630   ntuple->Write();
 631   ntuple2->Write();
 632   hist1n1->Write();
 633   hist2n1->Write();
 634   hist3n1->Write();
 635   hist4n1->Write();
 636   hist5n1->Write();
 637   hist7n1->Write();
 638   hist8n1->Write();
 639   hist1n2->Write();
 640   hist2n2->Write();
 641   hist3n2->Write();
 642   hist4n2->Write();
 643   hist5n2->Write();
 644   hist7n2->Write();
 645   hist8n2->Write();
 646   hist1->Write();
 647   hist2->Write();
 648   hist3->Write();
 649   hist4->Write();
 650   hist5->Write();
 651   hist6->Write();
 652   hist6b->Write();
 653   hist6p->Write();
 654   hist6b1->Write();
 655   hist6p1->Write();
 656   hist6p2->Write();
 657   hist11n1->Write();
 658   hist11n2->Write();
 659   hist12n1->Write();
 660   hist12n2->Write();
 661   hist13n1->Write();
 662   hist13n2->Write();
 663   hist14n1->Write();
 664   hist14n2->Write();
 665   histsp1->Write();
 666   histsp2->Write();
 667
 668   outfile->Close();
 669 }
 670 //-----------------------------------------------------------------
 671
 672
 673
 674 void clustershape(){
 675  //
 676  //macro to display the legend of the cluster shape analysis plot
 677  //
 678
 679    TPad *pad1 = new TPad("pad1", "This is pad2",0,0,1,1);
 680    pad1->Draw();
 681    pad1->cd();
 682    pad1->Range(0,0.25,1,1);
 683    pad1->SetFillColor(0);
 684    pad1->SetBorderSize(1);
 685
 686 //------------------------------------------
 687    Float_t yfirst= 0.95;
 688    Float_t ysh   = 0.05;
 689    Float_t ysiz  = 0.02;
 690    Float_t ynum  = 0.005;
 691 //------------------------------------------
 692
 693    //bin 1
 694    TLatex *tex = new TLatex(0.12,yfirst,"1");
 695    tex->SetTextSize(0.07);
 696    tex->SetLineWidth(2);
 697    tex->Draw();
 698    TPave *pave = new TPave(0.3,yfirst,0.5,yfirst+ysiz,1,"br");
 699    pave->SetFillColor(18);
 700    pave->SetLineWidth(2);
 701    pave->Draw();
 702
 703    //bin 2
 704    yfirst=yfirst-ysh;
 705    TLatex *tex = new TLatex(0.12,yfirst,"2");
 706    tex->SetTextSize(0.07);
 707    tex->SetLineWidth(2);
 708    tex->Draw();
 709    TPave *pave = new TPave(0.3,yfirst,0.5,yfirst+ysiz,1,"br");
 710    pave->SetFillColor(18);
 711    pave->SetLineWidth(2);
 712    pave->Draw();
 713    TPave *pave = new TPave(0.5,yfirst,0.7,yfirst+ysiz,1,"br");
 714    pave->SetFillColor(18);
 715    pave->SetLineWidth(2);
 716    pave->Draw();
 717
 718    //bin 3
 719    yfirst=yfirst-ysh;
 720    TLatex *tex = new TLatex(0.12,yfirst-ynum,"3");
 721    tex->SetTextSize(0.07);
 722    tex->SetLineWidth(2);
 723    tex->Draw();
 724    TPave *pave = new TPave(0.3,yfirst,0.5,yfirst+ysiz,1,"br");
 725    pave->SetFillColor(18);
 726    pave->SetLineWidth(2);
 727    pave->Draw();
 728    TPave *pave = new TPave(0.3,yfirst,0.5,yfirst-ysiz,1,"br");
 729    pave->SetFillColor(18);
 730    pave->SetLineWidth(2);
 731    pave->Draw();
 732
 733    //bin 4
 734    yfirst=yfirst-1.8*ysh;
 735    TLatex *tex = new TLatex(0.12,yfirst+3*ynum,"4");
 736    tex->SetTextSize(0.07);
 737    tex->SetLineWidth(2);
 738    tex->Draw();
 739    TPave *pave = new TPave(0.3,yfirst,0.5,yfirst+ysiz,1,"br");
 740    pave->SetFillColor(18);
 741    pave->SetLineWidth(2);
 742    pave->Draw();
 743    TPave *pave = new TPave(0.5,yfirst+ysiz,0.7,yfirst+2*ysiz,1,"br");
 744    pave->SetFillColor(18);
 745    pave->SetLineWidth(2);
 746    pave->Draw();
 747
 748    //bin 5
 749    yfirst=yfirst-1.5*ysh;
 750    TLatex *tex = new TLatex(0.12,yfirst+3*ynum,"5");
 751    tex->SetTextSize(0.07);
 752    tex->SetLineWidth(2);
 753    tex->Draw();
 754    TPave *pave = new TPave(0.3,yfirst,0.5,yfirst+ysiz,1,"br");
 755    pave->SetFillColor(18);
 756    pave->SetLineWidth(2);
 757    pave->Draw();
 758    TPave *pave = new TPave(0.5,yfirst,0.7,yfirst+ysiz,1,"br");
 759    pave->SetFillColor(18);
 760    pave->SetLineWidth(2);
 761    pave->Draw();
 762    TPave *pave = new TPave(0.5,yfirst+ysiz,0.7,yfirst+2*ysiz,1,"br");
 763    pave->SetFillColor(18);
 764    pave->SetLineWidth(2);
 765    pave->Draw();
 766
 767    //bin 6
 768    yfirst=yfirst-1.5*ysh;
 769    TLatex *tex = new TLatex(0.12,yfirst+ynum,"6");
 770    tex->SetTextSize(0.07);
 771    tex->SetLineWidth(2);
 772    tex->Draw();
 773    TPave *pave = new TPave(0.3,yfirst,0.5,yfirst+ysiz,1,"br");
 774    pave->SetFillColor(18);
 775    pave->SetLineWidth(2);
 776    pave->Draw();
 777    TPave *pave = new TPave(0.5,yfirst,0.7,yfirst+ysiz,1,"br");
 778    pave->SetFillColor(18);
 779    pave->SetLineWidth(2);
 780    pave->Draw();
 781    TPave *pave = new TPave(0.7,yfirst,0.9,yfirst+ysiz,1,"br");
 782    pave->SetFillColor(18);
 783    pave->SetLineWidth(2);
 784    pave->Draw();
 785
 786    //bin 7
 787    yfirst=yfirst-2*ysh;
 788    TLatex *tex = new TLatex(0.12,yfirst+ysiz+ynum,"7");
 789    tex->SetTextSize(0.07);
 790    tex->SetLineWidth(2);
 791    tex->Draw();
 792    TPave *pave = new TPave(0.3,yfirst,0.5,yfirst+ysiz,1,"br");
 793    pave->SetFillColor(18);
 794    pave->SetLineWidth(2);
 795    pave->Draw();
 796    TPave *pave = new TPave(0.3,yfirst+ysiz,0.5,yfirst+2*ysiz,1,"br");
 797    pave->SetFillColor(18);
 798    pave->SetLineWidth(2);
 799    pave->Draw();
 800    TPave *pave = new TPave(0.3,yfirst+2*ysiz,0.5,yfirst+3*ysiz,1,"br");
 801    pave->SetFillColor(18);
 802    pave->SetLineWidth(2);
 803    pave->Draw();
 804
 805    //bin 8
 806    yfirst=yfirst-1.5*ysh;
 807    TLatex *tex = new TLatex(0.12,yfirst+ynum,"8");
 808    tex->SetTextSize(0.07);
 809    tex->SetLineWidth(2);
 810    tex->Draw();
 811    TPave *pave = new TPave(0.3,yfirst,0.5,yfirst+ysiz,1,"br");
 812    pave->SetFillColor(18);
 813    pave->SetLineWidth(2);
 814    pave->Draw();
 815    TPave *pave = new TPave(0.5,yfirst+ysiz,0.7,yfirst+2*ysiz,1,"br");
 816    pave->SetFillColor(18);
 817    pave->SetLineWidth(2);
 818    pave->Draw();
 819    TPave *pave = new TPave(0.7,yfirst+2*ysiz,0.9,yfirst+3*ysiz,1,"br");
 820    pave->SetFillColor(18);
 821    pave->SetLineWidth(2);
 822    pave->Draw();
 823
 824    //bin 9
 825    yfirst=yfirst-1.5*ysh;
 826    TLatex *tex = new TLatex(0.12,yfirst+ynum,"9");
 827    tex->SetTextSize(0.07);
 828    tex->SetLineWidth(2);
 829    tex->Draw();
 830    TPave *pave = new TPave(0.3,yfirst,0.5,yfirst+ysiz,1,"br");
 831    pave->SetFillColor(18);
 832    pave->SetLineWidth(2);
 833    pave->Draw();
 834    TPave *pave = new TPave(0.5,yfirst,0.7,yfirst+ysiz,1,"br");
 835    pave->SetFillColor(18);
 836    pave->SetLineWidth(2);
 837    pave->Draw();
 838    TPave *pave = new TPave(0.7,yfirst+ysiz,0.9,yfirst+2*ysiz,1,"br");
 839    pave->SetFillColor(18);
 840    pave->SetLineWidth(2);
 841    pave->Draw();
 842
 843    //bin 10
 844    yfirst=yfirst-1.5*ysh;
 845    TLatex *tex = new TLatex(0.12,yfirst-ynum,"10");
 846    tex->SetTextSize(0.07);
 847    tex->SetLineWidth(2);
 848    tex->Draw();
 849    TPave *pave = new TPave(0.3,yfirst-ysiz,0.5,yfirst,1,"br");
 850    pave->SetFillColor(18);
 851    pave->SetLineWidth(2);
 852    pave->Draw();
 853    TPave *pave = new TPave(0.3,yfirst,0.5,yfirst+ysiz,1,"br");
 854    pave->SetFillColor(18);
 855    pave->SetLineWidth(2);
 856    pave->Draw();
 857    TPave *pave = new TPave(0.5,yfirst+ysiz,0.7,yfirst+2*ysiz,1,"br");
 858    pave->SetFillColor(18);
 859    pave->SetLineWidth(2);
 860    pave->Draw();
 861 }
 862