RICH/RICHtest.C

   1 void RICHtest (Int_t evNumber1=0,Int_t evNumber2=0)
   2 {
   3 /////////////////////////////////////////////////////////////////////////
   4 //   This macro is a small example of a ROOT macro
   5 //   illustrating how to read the output of GALICE
   6 //   and do some analysis.
   7 //
   8 /////////////////////////////////////////////////////////////////////////
   9
  10 // Dynamically link some shared libs
  11
  12     if (gClassTable->GetID("AliRun") < 0) {
  13         gROOT->LoadMacro("loadlibs.C");
  14         loadlibs();
  15     }
  16 // Connect the Root Galice file containing Geometry, Kine and Hits
  17
  18     TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject("galice.root");
  19
  20
  21     if (!file) {
  22         printf("\n Creating galice.root \n");
  23         file = new TFile("galice.root");
  24     } else {
  25         printf("\n galice.root found in file list");
  26     }
  27     file->ls();
  28
  29 // Get AliRun object from file or create it if not on file
  30     if (!gAlice) {
  31         gAlice = (AliRun*)(file->Get("gAlice"));
  32         if (gAlice) printf("AliRun object found on file\n");
  33         if (!gAlice) {
  34             printf("\n create new gAlice object");
  35             gAlice = new AliRun("gAlice","Alice test program");
  36         }
  37     }
  38
  39 //  Create some histograms
  40
  41
  42    TH1F *ccharge1 = new TH1F("ccharge1","Cluster Charge distribution"
  43                            ,100,0.,500.);
  44    TH1F *pcharge1 = new TH1F("pcharge1","Pad      Charge distribution"
  45                            ,100,0.,200.);
  46    TH1F *xresid1  = new TH1F("xresid1","x-Residuals"
  47                            ,100,-0.5,0.5);
  48    TH1F *yresid1  = new TH1F("yresid1","y-Residuals"
  49                            ,100,-0.2,0.2);
  50    TH1F *npads1   = new TH1F("npads1" ,"Pads per Hit"
  51                            ,20,-0.5,19.5);
  52    TH2F *xresys1  = new TH2F("xresys1","x-Residuals systematics"
  53                            ,50,-2.0,2.0,100,-1.0,1.0);
  54    TH2F *yresys1  = new TH2F("yresys1","y-Residuals systematics"
  55                            ,50,-0.4,0.4,100,-0.1,0.1);
  56
  57    TH1F *ccharge2 = new TH1F("ccharge2","Cluster Charge distribution"
  58                            ,100,0.,500.);
  59    TH1F *pcharge2 = new TH1F("pcharge2","Pad      Charge distribution"
  60                            ,100,0.,200.);
  61    TH1F *xresid2  = new TH1F("xresid2","x-Residuals"
  62                            ,100,-0.5,0.5);
  63    TH1F *yresid2  = new TH1F("yresid2","y-Residuals"
  64                            ,100,-0.2,0.2);
  65    TH1F *npads2   = new TH1F("npads2" ,"Pads per Hit"
  66                            ,20,-0.5,19.5);
  67    TH2F *xresys2  = new TH2F("xresys2","x-Residuals systematics"
  68                            ,50,-2.0,2.0,100,-1.0,1.0);
  69    TH2F *yresys2  = new TH2F("yresys2","y-Residuals systematics"
  70                            ,50,-0.4,0.4,100,-0.1,0.1);
  71
  72
  73    AliRICHchamber*  iChamber;
  74 //
  75 //   Loop over events
  76 //
  77    Int_t Nh=0;
  78    Int_t Nh1=0;
  79    for (Int_t nev=0; nev<= evNumber2; nev++) {
  80        //cout << "nev         " << nev <<endl;
  81        printf ("Event Number       : %d\n",nev);
  82        Int_t nparticles = gAlice->GetEvent(nev);
  83        //cout << "nparticles  " << nparticles <<endl;
  84        printf ("Number of particles: %d\n",nparticles);
  85        if (nev < evNumber1) continue;
  86        if (nparticles <= 0) return;
  87
  88        AliRICH *RICH  = (AliRICH*) gAlice->GetDetector("RICH");
  89            printf("\n track %d %d \n ", nev, RICH);
  90
  91        TTree *TH = gAlice->TreeH();
  92        Int_t ntracks = TH->GetEntries();
  93        Int_t Nc=0;
  94        Int_t   npad[2];
  95        Float_t Q[2], xmean[2],ymean[2],xres[2],yres[2], xonpad[2], yonpad[2];
  96
  97        printf ("Just got it");
  98 //
  99 //   Loop over events
 100 //
 101        for (Int_t track=0; track<ntracks;track++) {
 102
 103            gAlice->ResetHits();
 104            Int_t nbytes += TH->GetEvent(track);
 105            if (RICH)  {
 106                for(AliRICHhit* mHit=(AliRICHhit*)RICH->FirstHit(-1);
 107                    mHit;
 108                    mHit=(AliRICHhit*)RICH->NextHit())
 109                {
 110                    Int_t   nch   = mHit->fChamber;  // chamber number
 111                    Float_t x     = mHit->fX;        // x-pos of hit
 112                    Float_t y     = mHit->fY;        // y-pos
 113 //
 114 //
 115                    iChamber = & RICH->Chamber(nch-1);
 116                    response=iChamber->GetResponseModel(mip);
 117 //
 118 //
 119                    if (nch <= 1) {
 120                        for (Int_t i=0; i<2; i++) {
 121                            xmean[i]=0;
 122                            ymean[i]=0;
 123                            Q[i]=0;
 124                            npad[i]=0;
 125                        }
 126                        for (AliRICHcluster *mPad=(AliRICHcluster*)RICH
 127                                 ->FirstPad(mHit);
 128                             mPad;
 129                             mPad=(AliRICHcluster*)RICH->NextPad()
 130                            )
 131                        {
 132                            Int_t nseg     = mPad->fCathode;   // segmentation
 133                            Int_t nhit     = mPad->fHitNumber; // hit number
 134                            Int_t qtot     = mPad->fQ;         // charge
 135                            Int_t ipx      = mPad->fPadX;      // pad number on X
 136                            Int_t ipy      = mPad->fPadY;      // pad number on Y
 137                            Int_t iqpad    = mPad->fQpad;      // charge per pad
 138                            Int_t secpad   = mPad->fRSec;      // r-pos of pad
 139 //
 140 //
 141                            segmentation=iChamber->GetSegmentationModel(nseg);
 142                            Int_t ind=nseg-1;
 143 //                     printf("Pad of hit, padx, pady, iqpad, ncha %d %d %d %d %d %d\n",
 144 //                            nhit, ipx, ipy, iqpad, nseg, ind);
 145
 146
 147                            if (nseg == 1) {
 148                                pcharge1->Fill(iqpad,(float) 1);
 149                                ccharge1->Fill(qtot ,(float) 1);
 150                            }  else {
 151                                pcharge2->Fill(iqpad,(float) 1);
 152                                ccharge2->Fill(qtot ,(float) 1);
 153                            }
 154 // Calculate centre of gravity
 155 //
 156                            if (iqpad == 0 && ind==0) {
 157                                printf("\n attention iqpad 0");
 158                            }
 159
 160                            if (iqpad >  0 && secpad==1) {
 161                                Float_t xc,yc;
 162                                npad[ind]++;
 163                                segmentation->GetPadCxy(ipx,ipy,xc,yc);
 164 //                             printf("\n pad %d %d   ", ipx, ipy);
 165 //                             printf("\n pos %f %f   ",  xc,  yc);
 166                                xmean[ind]+=Float_t(iqpad*xc);
 167                                ymean[ind]+=Float_t(iqpad*yc);
 168                                Q[ind]+=iqpad;
 169                            }
 170
 171                        } //pad hit loop
 172                        for (Int_t i=0; i<2; i++) {
 173                            segmentation = iChamber->GetSegmentationModel(i+1);
 174
 175 //                         if (npad[i] ==0) {
 176 //                             printf("\n #pads=0 %f %f",x,y);
 177 //                         }
 178
 179                            if (Q[i] >0) {
 180                                xmean[i] = xmean[i]/Q[i];
 181                                xres[i]  = xmean[i]-x;
 182                                ymean[i] = ymean[i]/Q[i];
 183                                yres[i]  = ymean[i]-y;
 184 //                             printf("\n xmean, ymean %f %f",xmean[i],ymean[i]);
 185 //                             printf("\n xhit, yhit %f %f",x,y);
 186
 187 // Systematic Error
 188 //
 189                                Int_t icx, icy;
 190                                segmentation->
 191                                    GetPadIxy(x,y,icx,icy);
 192                                segmentation->
 193                                    GetPadCxy(icx,icy,xonpad[i],yonpad[i]);
 194                                xonpad[i]-=x;
 195                                yonpad[i]-=y;
 196                            }
 197                        } // plane loop
 198                        xresid1->Fill(xres[0],(float) 1);
 199                        yresid1->Fill(yres[0],(float) 1);
 200                        npads1->Fill(npad[0],(float) 1);
 201                        if (npad[0] >=2 && Q[0] > 6 ) {
 202                            xresys1->Fill(xonpad[0],xres[0],(float) 1);
 203                            yresys1->Fill(yonpad[0],yres[0],(float) 1);
 204                        }
 205
 206                        xresid2->Fill(xres[1],(float) 1);
 207                        yresid2->Fill(yres[1],(float) 1);
 208                        npads2->Fill(npad[1],(float) 1);
 209                        if (npad[1] >=2 && Q[1] > 6) {
 210                            xresys2->Fill(xonpad[1],xres[1],(float) 1);
 211                            yresys2->Fill(yonpad[1],yres[1],(float) 1);
 212                        }
 213                    } // chamber 1
 214                } // hit loop
 215            } // if RICH
 216        } // track loop
 217    } // event loop
 218
 219 //Create a canvas, set the view range, show histograms
 220    TCanvas *c1 = new TCanvas("c1","Charge and Residuals",400,10,600,700);
 221    pad11 = new TPad("pad11"," ",0.01,0.51,0.49,0.99);
 222    pad12 = new TPad("pad12"," ",0.51,0.51,0.99,0.99);
 223    pad13 = new TPad("pad13"," ",0.01,0.01,0.49,0.49);
 224    pad14 = new TPad("pad14"," ",0.51,0.01,0.99,0.49);
 225    pad11->SetFillColor(11);
 226    pad12->SetFillColor(11);
 227    pad13->SetFillColor(11);
 228    pad14->SetFillColor(11);
 229    pad11->Draw();
 230    pad12->Draw();
 231    pad13->Draw();
 232    pad14->Draw();
 233
 234    pad11->cd();
 235    ccharge1->SetFillColor(42);
 236    ccharge1->SetXTitle("ADC units");
 237    ccharge1->Draw();
 238
 239    pad12->cd();
 240    pcharge1->SetFillColor(42);
 241    pcharge1->SetXTitle("ADC units");
 242    pcharge1->Draw();
 243
 244    pad13->cd();
 245    xresid1->SetFillColor(42);
 246    xresid1->Draw();
 247
 248    pad14->cd();
 249    yresid1->SetFillColor(42);
 250    yresid1->Draw();
 251
 252    TCanvas *c2 = new TCanvas("c2","Cluster Size",400,10,600,700);
 253    pad21 = new TPad("pad21"," ",0.01,0.51,0.49,0.99);
 254    pad22 = new TPad("pad22"," ",0.51,0.51,0.99,0.99);
 255    pad23 = new TPad("pad23"," ",0.01,0.01,0.49,0.49);
 256    pad24 = new TPad("pad24"," ",0.51,0.01,0.99,0.49);
 257    pad21->SetFillColor(11);
 258    pad22->SetFillColor(11);
 259    pad23->SetFillColor(11);
 260    pad24->SetFillColor(11);
 261    pad21->Draw();
 262    pad22->Draw();
 263    pad23->Draw();
 264    pad24->Draw();
 265
 266    pad21->cd();
 267    npads1->SetFillColor(42);
 268    npads1->SetXTitle("Cluster Size");
 269    npads1->Draw();
 270
 271    pad23->cd();
 272    xresys1->SetXTitle("x on pad");
 273    xresys1->SetYTitle("x-xcog");
 274    xresys1->Draw();
 275
 276    pad24->cd();
 277    yresys1->SetXTitle("y on pad");
 278    yresys1->SetYTitle("y-ycog");
 279    yresys1->Draw();
 280
 281    TCanvas *c3 = new TCanvas("c3","Charge and Residuals",400,10,600,700);
 282    pad31 = new TPad("pad31"," ",0.01,0.51,0.49,0.99);
 283    pad32 = new TPad("pad32"," ",0.51,0.51,0.99,0.99);
 284    pad33 = new TPad("pad33"," ",0.01,0.01,0.49,0.49);
 285    pad34 = new TPad("pad34"," ",0.51,0.01,0.99,0.49);
 286    pad31->SetFillColor(11);
 287    pad32->SetFillColor(11);
 288    pad33->SetFillColor(11);
 289    pad34->SetFillColor(11);
 290    pad31->Draw();
 291    pad32->Draw();
 292    pad33->Draw();
 293    pad34->Draw();
 294
 295    pad31->cd();
 296    ccharge2->SetFillColor(42);
 297    ccharge2->SetXTitle("ADC units");
 298    ccharge2->Draw();
 299
 300    pad32->cd();
 301    pcharge2->SetFillColor(42);
 302    pcharge2->SetXTitle("ADC units");
 303    pcharge2->Draw();
 304
 305    pad33->cd();
 306    xresid2->SetFillColor(42);
 307    xresid2->Draw();
 308
 309    pad34->cd();
 310    yresid2->SetFillColor(42);
 311    yresid2->Draw();
 312
 313    TCanvas *c4 = new TCanvas("c4","Cluster Size",400,10,600,700);
 314    pad41 = new TPad("pad41"," ",0.01,0.51,0.49,0.99);
 315    pad42 = new TPad("pad42"," ",0.51,0.51,0.99,0.99);
 316    pad43 = new TPad("pad43"," ",0.01,0.01,0.49,0.49);
 317    pad44 = new TPad("pad44"," ",0.51,0.01,0.99,0.49);
 318    pad41->SetFillColor(11);
 319    pad42->SetFillColor(11);
 320    pad43->SetFillColor(11);
 321    pad44->SetFillColor(11);
 322    pad41->Draw();
 323    pad42->Draw();
 324    pad43->Draw();
 325    pad44->Draw();
 326
 327    pad41->cd();
 328    npads2->SetFillColor(42);
 329    npads2->SetXTitle("Cluster Size");
 330    npads2->Draw();
 331
 332    pad43->cd();
 333    xresys2->SetXTitle("x on pad");
 334    xresys2->SetYTitle("x-xcog");
 335    xresys2->Draw();
 336
 337    pad44->cd();
 338    yresys2->SetXTitle("y on pad");
 339    yresys2->SetYTitle("y-ycog");
 340    yresys2->Draw();
 341
 342 }