RICH/AliRICHDetectV1.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
   9  * without fee, provided that the above copyright notice appears in all   *
  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 /* $Id$ */
  17
  18 #include <stdlib.h>
  19
  20 #include "AliRICHDetectV1.h"
  21 #include "AliRICH.h"
  22 #include "AliRICHPoints.h"
  23 #include "AliRICHDetect.h"
  24 #include "AliRICHDigit.h"
  25 #include "AliRICHRawCluster.h"
  26 #include "AliRICHSegmentationV0.h"
  27 #include "AliRun.h"
  28 #include "TParticle.h"
  29 #include "TTree.h"
  30 #include "TMath.h"
  31 #include "TRandom.h"
  32 #include "TH3.h"
  33 #include "TH2.h"
  34 #include "TCanvas.h"
  35 #include <TStyle.h>
  36
  37
  38
  39 ClassImp(AliRICHDetectV1)
  40
  41
  42 //___________________________________________
  43 AliRICHDetectV1::AliRICHDetectV1() : AliRICHDetect()
  44 {
  45
  46 // Default constructor
  47
  48   fc1 = 0;
  49   fc2 = 0;
  50   fc3 = 0;
  51
  52 }
  53
  54 //___________________________________________
  55 AliRICHDetectV1::AliRICHDetectV1(const char *name, const char *title)
  56                 :AliRICHDetect(name,title)
  57 {
  58
  59   TStyle *mystyle=new TStyle("Plain","mystyle");
  60   mystyle->SetPalette(1,0);
  61   mystyle->cd();
  62
  63
  64   fc1= new TCanvas("c1","Reconstructed points",50,50,300,350);
  65   fc1->Divide(2,2);
  66   fc2= new TCanvas("c2","Reconstructed points after SPOT",370,50,300,350);
  67   fc2->Divide(2,2);
  68   fc3= new TCanvas("c3","Used Digits",690,50,300,350);
  69   fc4= new TCanvas("c4","Mesh activation data",50,430,600,350);
  70   fc4->Divide(2,1);
  71
  72
  73 }
  74
  75 //___________________________________________
  76 AliRICHDetectV1::~AliRICHDetectV1()
  77 {
  78
  79 // Destructor
  80
  81 }
  82
  83
  84 void AliRICHDetectV1::Detect(Int_t nev, Int_t type)
  85 {
  86
  87 //
  88 // Detection algorithm
  89
  90
  91   //printf("Detection started!\n");
  92   Float_t omega,omega1,theta1,x,y,q=0,z,cx,cy,max,radius=0,meanradius=0;
  93   Int_t maxi,maxj,maxk;
  94   Float_t originalOmega, originalPhi, originalTheta;
  95   Float_t steptheta,stepphi,stepomega;
  96   Float_t binomega, bintheta, binphi;
  97   Int_t intomega, inttheta, intphi;
  98   Float_t maxRadius,minRadius,eccentricity,angularadius,offset,phi_relative;
  99   Int_t i,j,k;
 100
 101   AliRICH *pRICH  = (AliRICH*)gAlice->GetDetector("RICH");
 102   AliRICHSegmentationV0*  segmentation;
 103   AliRICHChamber*       iChamber;
 104   AliRICHGeometry*  geometry;
 105
 106   iChamber = &(pRICH->Chamber(0));
 107   segmentation=(AliRICHSegmentationV0*) iChamber->GetSegmentationModel();
 108   geometry=iChamber->GetGeometryModel();
 109
 110
 111   //const Float_t Noise_Level=0;                       //Noise Level in percentage of mesh points
 112   //const Float_t t=0.6;                               //Softening of Noise Correction (factor)
 113
 114   const Float_t kPi=TMath::Pi();
 115
 116   const Float_t kHeight=geometry->GetRadiatorToPads(); //Distance from Radiator to Pads in centimeters
 117   //printf("Distance to Pads:%f\n",kHeight);
 118
 119   const Int_t kSpot=2;                                 //number of passes with spot algorithm
 120   const Int_t activ_tresh=0;                           //activation treshold to identify a track
 121
 122   const Int_t kDimensionTheta=2;                       //Matrix dimension for angle Detection
 123   const Int_t kDimensionPhi=2;
 124   const Int_t kDimensionOmega=50;
 125
 126   const Float_t SPOTp=.25;                            //Percentage of spot action
 127   const Float_t kMinOmega=.6;
 128   const Float_t kMaxOmega=.7;                 //Maximum Cherenkov angle to identify
 129   const Float_t kMinTheta=0;
 130   const Float_t kMaxTheta=0.5*kPi/180;
 131   const Float_t kMinPhi=0;
 132   const Float_t kMaxPhi=20*kPi/180;
 133
 134   const Float_t sigma=0.5;                          //half thickness of fiducial band in cm
 135
 136   Float_t rechit[6];                                 //Reconstructed point data
 137
 138   Int_t ***point = i3tensor(0,kDimensionTheta,0,kDimensionPhi,0,kDimensionOmega);
 139   Int_t ***point1 = i3tensor(0,kDimensionTheta,0,kDimensionPhi,0,kDimensionOmega);
 140
 141   steptheta=(kMaxTheta-kMinTheta)/kDimensionTheta;
 142   stepphi=(kMaxPhi-kMinPhi)/kDimensionPhi;
 143   stepomega=(kMaxOmega-kMinOmega)/kDimensionOmega;
 144
 145   static TH3F *Points = new TH3F("Points","Reconstructed points 3D",kDimensionTheta,0,kDimensionTheta,kDimensionPhi,0,kDimensionPhi,kDimensionOmega,0,kDimensionOmega);
 146   static TH2F *ThetaPhi = new TH2F("ThetaPhi","Theta-Phi projection",kDimensionTheta,0,kDimensionTheta,kDimensionPhi,0,kDimensionPhi);
 147   static TH2F *OmegaTheta = new TH2F("OmegaTheta","Omega-Theta projection",kDimensionTheta,0,kDimensionTheta,kDimensionOmega,0,kDimensionOmega);
 148   static TH2F *OmegaPhi = new TH2F("OmegaPhi","Omega-Phi projection",kDimensionPhi,0,kDimensionPhi,kDimensionOmega,0,kDimensionOmega);
 149   static TH3F *SpotPoints = new TH3F("Points","Reconstructed points 3D, spot",kDimensionTheta,0,kDimensionTheta,kDimensionPhi,0,kDimensionPhi,kDimensionOmega,0,kDimensionOmega);
 150   static TH2F *SpotThetaPhi = new TH2F("ThetaPhi","Theta-Phi projection, spot",kDimensionTheta,0,kDimensionTheta,kDimensionPhi,0,kDimensionPhi);
 151   static TH2F *SpotOmegaTheta = new TH2F("OmegaTheta","Omega-Theta projection, spot",kDimensionTheta,0,kDimensionTheta,kDimensionOmega,0,kDimensionOmega);
 152   static TH2F *SpotOmegaPhi = new TH2F("OmegaPhi","Omega-Phi projection, spot",kDimensionPhi,0,kDimensionPhi,kDimensionOmega,0,kDimensionOmega);
 153   static TH2F *DigitsXY = new TH2F("DigitsXY","Pads used for reconstruction",150,-25,25,150,-25,25);
 154   static TH1F *AngleAct = new TH1F("AngleAct","Activation per angle",100,.45,1);
 155   static TH1F *Activation = new TH1F("Activation","Activation per ring",100,0,25);
 156   Points->SetXTitle("theta");
 157   Points->SetYTitle("phi");
 158   Points->SetZTitle("omega");
 159   ThetaPhi->SetXTitle("theta");
 160   ThetaPhi->SetYTitle("phi");
 161   OmegaTheta->SetXTitle("theta");
 162   OmegaTheta->SetYTitle("omega");
 163   OmegaPhi->SetXTitle("phi");
 164   OmegaPhi->SetYTitle("omega");
 165   SpotPoints->SetXTitle("theta");
 166   SpotPoints->SetYTitle("phi");
 167   SpotPoints->SetZTitle("omega");
 168   SpotThetaPhi->SetXTitle("theta");
 169   SpotThetaPhi->SetYTitle("phi");
 170   SpotOmegaTheta->SetXTitle("theta");
 171   SpotOmegaTheta->SetYTitle("omega");
 172   SpotOmegaPhi->SetXTitle("phi");
 173   SpotOmegaPhi->SetYTitle("omega");
 174   AngleAct->SetFillColor(5);
 175   AngleAct->SetXTitle("rad");
 176   AngleAct->SetYTitle("activation");
 177   Activation->SetFillColor(5);
 178   Activation->SetXTitle("activation");
 179
 180   Int_t ntracks = (Int_t)pRICH->TreeH()->GetEntries();
 181
 182   Float_t trackglob[3];
 183   Float_t trackloc[3];
 184
 185   //printf("Area de uma elipse com teta 0 e Omega 45:%f",Area(0,45));
 186
 187   Int_t track;
 188
 189   for (track=0; track<ntracks;track++) {
 190     gAlice->ResetHits();
 191     pRICH->TreeH()->GetEvent(track);
 192     TClonesArray *pHits  = pRICH->Hits();
 193     if (pHits == 0) return;
 194     Int_t nhits = pHits->GetEntriesFast();
 195     if (nhits == 0) continue;
 196     //Int_t nent=(Int_t)gAlice->TreeD()->GetEntries();
 197     AliRICHhit *mHit = 0;
 198     //Int_t npoints=0;
 199
 200     Int_t counter=0, counter1=0;
 201     //Initialization
 202     for(i=0;i<kDimensionTheta;i++)
 203       {
 204         for(j=0;j<kDimensionPhi;j++)
 205           {
 206             for(k=0;k<kDimensionOmega;k++)
 207               {
 208                 counter++;
 209                 point[i][j][k]=0;
 210                 //printf("Dimensions theta:%d, phi:%d, omega:%d",kDimensionTheta,kDimensionPhi,kDimensionOmega);
 211                 //printf("Resetting %d %d %d, time %d\n",i,j,k,counter);
 212                 //-Noise_Level*(Area(i*kPi/(18*dimension),k*kMaxOmega/dimension)-Area((i-1)*kPi/(18*dimension),(k-1)*kMaxOmega/dimension));
 213                 //printf("n-%f",-Noise_Level*(Area(i*kPi/(18*dimension),k*kMaxOmega/dimension)-Area((i-1)*kPi/(18*dimension),(k-1)*kMaxOmega/dimension)));
 214               }
 215           }
 216       }
 217
 218     Int_t ncerenkovs = pRICH->Cerenkovs()->GetEntriesFast();
 219
 220
 221     originalOmega = 0;
 222     counter = 0;
 223
 224     for (Int_t hit=0;hit<ncerenkovs;hit++) {
 225       AliRICHCerenkov* cHit = (AliRICHCerenkov*) pRICH->Cerenkovs()->UncheckedAt(hit);
 226       Float_t loss = cHit->fLoss;                 //did it hit the CsI?
 227       Float_t production = cHit->fProduction;     //was it produced in freon?
 228       Float_t cherenkov = cHit->fCerenkovAngle;   //production cerenkov angle
 229       if (loss == 4 && production == 1)
 230         {
 231           counter +=1;
 232           originalOmega += cherenkov;
 233           //printf("%f\n",cherenkov);
 234         }
 235     }
 236
 237     originalOmega = originalOmega/counter;
 238
 239     //printf("Cerenkovs       : %d\n",counter);
 240
 241     mHit = (AliRICHhit*) pHits->UncheckedAt(0);
 242     Int_t nch  = mHit->Chamber();
 243     originalTheta = mHit->Theta();
 244     originalPhi = mHit->Phi();
 245     trackglob[0] = mHit->X();
 246     trackglob[1] = mHit->Y();
 247     trackglob[2] = mHit->Z();
 248
 249
 250     printf("\n--------------------------------------\n");
 251     printf("Chamber %d, track %d\n", nch, track);
 252     printf("Original omega: %f\n",originalOmega);
 253
 254     iChamber = &(pRICH->Chamber(nch-1));
 255
 256     printf("Nch:%d x:%f y:%f\n",nch,trackglob[0],trackglob[2]);
 257
 258     iChamber->GlobaltoLocal(trackglob,trackloc);
 259
 260     iChamber->LocaltoGlobal(trackloc,trackglob);
 261
 262
 263     cx=trackloc[0];
 264     cy=trackloc[2];
 265
 266     printf("cy:%f  ", cy);
 267
 268     if(counter != 0)    //if there are cerenkovs
 269       {
 270
 271         AliRICHDigit *points = 0;
 272         TClonesArray *pDigits = pRICH->DigitsAddress(nch-1);
 273
 274         AliRICHRawCluster *cluster =0;
 275         TClonesArray *pClusters = pRICH->RawClustAddress(nch-1);
 276
 277         Int_t maxcycle=0;
 278
 279         //digitize from digits
 280
 281         if(type==0)
 282           {
 283             gAlice->TreeD()->GetEvent(0);
 284             Int_t ndigits = pDigits->GetEntriesFast();
 285             maxcycle=ndigits;
 286             //printf("Got %d digits\n",ndigits);
 287           }
 288
 289         //digitize from clusters
 290
 291         if(type==1)
 292           {
 293             Int_t nent=(Int_t)gAlice->TreeR()->GetEntries();
 294             gAlice->TreeR()->GetEvent(nent-1);
 295             Int_t nclusters = pClusters->GetEntriesFast();
 296             maxcycle=nclusters;
 297             //printf("Got %d clusters\n",nclusters);
 298           }
 299
 300
 301
 302
 303         counter=0;
 304         printf("Starting calculations\n");
 305         printf("           Start                                                                                              Finish\n");
 306         printf("Progress:     ");
 307
 308
 309         for(Float_t theta=0;theta<kMaxTheta;theta+=steptheta)
 310           {
 311             printf(".");
 312             for(Float_t phi=0;phi<=kMaxPhi;phi+=stepphi)
 313               {
 314                 for(omega=kMinOmega;omega<=kMaxOmega;omega+=stepomega)
 315                   {
 316                     //printf("Entering angle cycle\n");
 317                     omega1=SnellAngle(omega);
 318                     theta1=SnellAngle(theta);
 319
 320                     maxRadius = kHeight*(tan(omega1+theta1)+tan(omega1-theta1))/2;
 321                     minRadius = kHeight*tan(omega1);
 322                     eccentricity = sqrt(1-(minRadius*minRadius)/(maxRadius*maxRadius));
 323
 324
 325
 326                     offset = kHeight*(tan(omega1+theta1)-tan(omega1-theta1))/2;
 327
 328                     //printf("phi:%f theta:%f omega:%f \n", phi,theta,omega);
 329
 330                     //printf("offset:%f cx:%f cy:%f \n", offset,cx,cy);
 331
 332                     Float_t cxn = cx + offset * sin(phi);
 333                     Float_t cyn = cy + offset * cos(phi);
 334
 335                     //printf("cxn:%f cyn:%f\n", cxn, cyn);
 336
 337                     for (Int_t cycle=0;cycle<maxcycle;cycle++)
 338                       {
 339                         //printf("Entering point cycle");
 340                         if(type==0)
 341                           {
 342                             points=(AliRICHDigit*) pDigits->UncheckedAt(cycle);
 343                             segmentation->GetPadC(points->PadX(), points->PadY(),x, y, z);
 344                           }
 345
 346                         if(type==1)
 347                           {
 348                             cluster=(AliRICHRawCluster*) pClusters->UncheckedAt(cycle);
 349                             x=cluster->fX;
 350                             y=cluster->fY;
 351                             q=cluster->fQ;
 352                           }
 353
 354                         if(type ==0 || q > 100)
 355
 356                           {
 357
 358                             x=x-cxn;
 359                             y=y-cyn;
 360                             radius=TMath::Sqrt(TMath::Power(x,2)+TMath::Power(y,2));
 361
 362                             phi_relative = asin(y/radius);
 363                             phi_relative = TMath::Abs(phi_relative - phi);
 364
 365                             angularadius = maxRadius*sqrt((1-eccentricity*eccentricity)/(1-eccentricity*eccentricity*cos(phi_relative)*cos(phi_relative)));
 366
 367                             //printf("omega:%f min:%f rad:%f max:%f\n",omega, angularadius-sigma,radius,angularadius+sigma);
 368
 369
 370                             if((angularadius-sigma)<radius && (angularadius+sigma)>radius)
 371                               {
 372                                 printf("omega:%f min:%f rad:%f max:%f\n",omega, angularadius-sigma,radius,angularadius+sigma);
 373
 374                                 bintheta=theta*kDimensionTheta/kMaxTheta;
 375                                 binphi=phi*kDimensionPhi/kMaxPhi;
 376                                 binomega=omega*kDimensionOmega/(kMaxOmega-kMinOmega);
 377
 378                                 if(Int_t(bintheta+0.5)==Int_t(bintheta))
 379                                   inttheta=Int_t(bintheta);
 380                                 else
 381                                   inttheta=Int_t(bintheta+0.5);
 382
 383                                 if(Int_t(binomega+0.5)==Int_t(binomega))
 384                                   intomega=Int_t(binomega);
 385                                 else
 386                               intomega=Int_t(binomega+0.5);
 387
 388                                 if(Int_t(binphi+0.5)==Int_t(binphi))
 389                                   intphi=Int_t(binphi);
 390                                 else
 391                                   intphi=Int_t(binphi+0.5);
 392
 393                                 //printf("Point added at %d %d %d\n",inttheta,intphi,intomega);
 394
 395                                 //if(type==0)
 396                                 point[inttheta][intphi][intomega]+=1;
 397                                 //if(type==1)
 398                                 //point[inttheta][intphi][intomega]+=(Int_t)(q);
 399
 400                                 //printf("Omega stored:%d\n",intomega);
 401                                 Points->Fill(inttheta,intphi,intomega,(float) 1);
 402                                 ThetaPhi->Fill(inttheta,intphi,(float) 1);
 403                                 OmegaTheta->Fill(inttheta,intomega,(float) 1);
 404                                 OmegaPhi->Fill(intphi,intomega,(float) 1);
 405                                 //printf("Filling at %d %d %d\n",Int_t(theta*kDimensionTheta/kMaxTheta),Int_t(phi*kDimensionPhi/kMaxPhi),Int_t(omega*kDimensionOmega/kMaxOmega));
 406                               }
 407                                 //if(omega<kMaxOmega)point[Int_t(theta)][Int_t(phi)][Int_t(omega)]+=1;
 408                           }
 409                       }
 410                   }
 411               }
 412
 413           }
 414                 //printf("Used %d digits for theta %3.1f\n",counter1, theta*180/kPi);
 415
 416         printf("\n");
 417
 418         meanradius=meanradius/counter;
 419         //printf("Mean radius:%f, counter:%d\n",meanradius,counter);
 420         rechit[5]=meanradius;
 421         //printf("Used %d digits\n",counter1);
 422         //printf("\n");
 423
 424         if(nev<2)
 425           {
 426             if(nev==0)
 427               {
 428                 fc1->cd(1);
 429                 Points->Draw("colz");
 430                 fc1->cd(2);
 431                 ThetaPhi->Draw("colz");
 432                 fc1->cd(3);
 433                 OmegaTheta->Draw("colz");
 434                 fc1->cd(4);
 435                 OmegaPhi->Draw("colz");
 436                 fc3->cd();
 437                 DigitsXY->Draw("colz");
 438               }
 439             else
 440               {
 441                 //fc1->cd(1);
 442                 //Points->Draw("same");
 443                 //fc1->cd(2);
 444                 //ThetaPhi->Draw("same");
 445                 //fc1->cd(3);
 446                 //OmegaTheta->Draw("same");
 447                 //fc1->cd(4);
 448                 //OmegaPhi->Draw("same");
 449               }
 450           }
 451
 452
 453         //SPOT execute twice
 454         for(Int_t s=0;s<kSpot;s++)
 455           {
 456             printf("     Applying Spot algorithm, pass %d\n", s);
 457
 458         //buffer copy
 459         for(i=0;i<=kDimensionTheta;i++)
 460           {
 461             for(j=0;j<=kDimensionPhi;j++)
 462               {
 463                 for(k=0;k<=kDimensionOmega;k++)
 464                   {
 465                     point1[i][j][k]=point[i][j][k];
 466                   }
 467               }
 468           }
 469
 470         //SPOT algorithm
 471         for(i=1;i<kDimensionTheta-1;i++)
 472           {
 473             for(j=1;j<kDimensionPhi-1;j++)
 474               {
 475                 for(k=1;k<kDimensionOmega-1;k++)
 476                   {
 477                     if((point[i][k][j]>point[i-1][k][j])&&(point[i][k][j]>point[i+1][k][j])&&
 478                        (point[i][k][j]>point[i][k-1][j])&&(point[i][k][j]>point[i][k+1][j])&&
 479                        (point[i][k][j]>point[i][k][j-1])&&(point[i][k][j]>point[i][k][j+1]))
 480                       {
 481                         //cout<<"SPOT"<<endl;
 482                         //Execute SPOT on point
 483                         point1[i][j][k]+=Int_t(SPOTp*(point[i-1][k][j]+point[i+1][k][j]+point[i][k-1][j]+point[i][k+1][j]+point[i][k][j-1]+point[i][k][j+1]));
 484                         point1[i-1][k][j]=Int_t(SPOTp*point[i-1][k][j]);
 485                         point1[i+1][k][j]=Int_t(SPOTp*point[i+1][k][j]);
 486                         point1[i][k-1][j]=Int_t(SPOTp*point[i][k-1][j]);
 487                         point1[i][k+1][j]=Int_t(SPOTp*point[i][k+1][j]);
 488                         point1[i][k][j-1]=Int_t(SPOTp*point[i][k][j-1]);
 489                         point1[i][k][j+1]=Int_t(SPOTp*point[i][k][j+1]);
 490                       }
 491                   }
 492               }
 493           }
 494
 495         //copy from buffer copy
 496         counter1=0;
 497         for(i=1;i<kDimensionTheta;i++)
 498           {
 499             for(j=1;j<kDimensionPhi;j++)
 500               {
 501                 for(k=1;k<kDimensionOmega;k++)
 502                   {
 503                     point[i][j][k]=point1[i][j][k];
 504                     if(nev<20)
 505                       {
 506                         if(s==kSpot-1)
 507                           {
 508                             if(point1[i][j][k] != 0)
 509                               {
 510                                 SpotPoints->Fill(i,j,k,(float) point1[i][j][k]);
 511                                 //printf("Random number %f\n",random->Rndm(2));
 512                                 //if(random->Rndm() < .2)
 513                                   //{
 514                                 SpotThetaPhi->Fill(i,j,(float) point1[i][j][k]);
 515                                 SpotOmegaTheta->Fill(i,k,(float) point1[i][j][k]);
 516                                 SpotOmegaPhi->Fill(j,k,(float) point1[i][j][k]);
 517                                     counter1++;
 518                                   //}
 519                                 //printf("Filling at %d %d %d value %f\n",i,j,k,(float) point1[i][j][k]);
 520                               }
 521                           }
 522                       }
 523                     //if(point1[i][j][k] != 0)
 524                       //printf("Last transfer point: %d, point1, %d\n",point[i][j][k],point1[i][j][k]);
 525                   }
 526               }
 527           }
 528       }
 529
 530     //printf("Filled %d cells\n",counter1);
 531
 532         if(nev<2)
 533           {
 534             if(nev==0)
 535               {
 536                 fc2->cd(1);
 537                 SpotPoints->Draw("colz");
 538                 fc2->cd(2);
 539                 SpotThetaPhi->Draw("colz");
 540                 fc2->cd(3);
 541                 SpotOmegaTheta->Draw("colz");
 542                 fc2->cd(4);
 543                 SpotOmegaPhi->Draw("colz");
 544               }
 545             else
 546               {
 547                 //fc2->cd(1);
 548                 //SpotPoints->Draw("same");
 549                 //fc2->cd(2);
 550                 //SpotThetaPhi->Draw("same");
 551                 //fc2->cd(3);
 552                 //SpotOmegaTheta->Draw("same");
 553                 //fc2->cd(4);
 554                 //SpotOmegaPhi->Draw("same");
 555               }
 556           }
 557
 558
 559         //Identification is equivalent to maximum determination
 560         max=0;maxi=0;maxj=0;maxk=0;
 561
 562         printf("     Proceeding to identification");
 563
 564         for(i=0;i<kDimensionTheta;i++)
 565           for(j=0;j<kDimensionPhi;j++)
 566             for(k=0;k<kDimensionOmega;k++)
 567               if(point[i][j][k]>max)
 568                 {
 569                   //cout<<"maxi="<<i*90/dimension<<" maxj="<<j*90/dimension<<" maxk="<<k*kMaxOmega/dimension*180/kPi<<" max="<<max<<endl;
 570                 maxi=i;maxj=j;maxk=k;
 571                 max=point[i][j][k];
 572                 printf(".");
 573                 //printf("Max Omega %d, Max Theta %d, Max Phi %d (%d counts)\n",maxk,maxi,maxj,max);
 574                 }
 575         printf("\n");
 576
 577         Float_t FinalOmega;
 578         Float_t FinalTheta;
 579         Float_t FinalPhi;
 580
 581
 582         if(max>activ_tresh)
 583           {
 584             FinalOmega = maxk*(kMaxOmega-kMinOmega)/kDimensionOmega;
 585             FinalTheta = maxi*kMaxTheta/kDimensionTheta;
 586             FinalPhi = maxj*kMaxPhi/kDimensionPhi;
 587
 588             FinalOmega += kMinOmega;
 589           }
 590         else
 591           {
 592             FinalOmega = 0;
 593             FinalTheta = 0;
 594             FinalPhi = 0;
 595
 596             printf("     Ambiguous data!\n");
 597           }
 598
 599
 600
 601         //printf("Detected angle for height %3.1f and for center %3.1f %3.1f:%f\n",h,cx,cy,maxk*kPi/(kDimensionTheta*4));
 602         printf("     Indentified angles: cerenkov - %f, theta - %3.1f, phi - %3.1f (%f activation)\n", FinalOmega, FinalTheta*180/kPi, FinalPhi*180/kPi, max);
 603         //printf("Detected angle for height %3.1f and for center %3.1f %3.1f:%f\n",kHeight,cx,cy,maxk);
 604
 605         AngleAct->Fill(FinalOmega, (float) max);
 606         Activation->Fill(max, (float) 1);
 607
 608         //fscanf(omegas,"%f",&realomega);
 609         //fscanf(thetas,"%f",&realtheta);
 610         //printf("Real Omega: %f",realomega);
 611         //cout<<"Detected:theta="<<maxi*90/kDimensionTheta<<"phi="<<maxj*90/kDimensionPhi<<"omega="<<maxk*kMaxOmega/kDimensionOmega*180/kPi<<" OmegaError="<<fabs(maxk*kMaxOmega/kDimensionOmega*180/kPi-realomega)<<" ThetaError="<<fabs(maxi*90/kDimensionTheta-realtheta)<<endl<<endl;
 612
 613         //fprintf(results,"Center Coordinates, cx=%6.2f cy=%6.2f, Real Omega=%6.2f, Detected Omega=%6.2f, Omega Error=%6.2f Theta Error=%6.2f\n",cx,cy,realomega,maxk*kMaxOmega/kDimensionOmega*180/kPi,fabs(maxk*kMaxOmega/kDimensionOmega*180/kPi-realomega),fabs(maxi*90/kDimensionTheta-realtheta));
 614
 615     /*for(j=0;j<np;j++)
 616       pointpp(maxj*90/kDimensionTheta,maxi*90/kDimensionPhi,maxk*kMaxOmega/kDimensionOmega*180/kPi,cx,cy);//Generates a point on the elipse*/
 617
 618
 619     //Start filling rec. hits
 620
 621     rechit[0] = FinalTheta;
 622     rechit[1] = 90*kPi/180 + FinalPhi;
 623     rechit[2] = FinalOmega;
 624     rechit[3] = cx;
 625     rechit[4] = cy;
 626
 627     //CreatePoints(FinalTheta, 270*kPi/180 + FinalPhi, FinalOmega, kHeight);
 628
 629     //printf ("track %d, theta %f, phi %f, omega %f\n\n\n",track,rechit[0],rechit[1],rechit[2]);
 630     //printf("rechit %f %f %f %f %f\n",rechit[0],rechit[1],rechit[2],rechit[3],rechit[4]);
 631     //printf("Chamber:%d",nch);
 632
 633
 634       }
 635
 636     else   //if no cerenkovs
 637
 638       {
 639
 640         rechit[0] = 0;
 641         rechit[1] = 0;
 642         rechit[2] = 0;
 643         rechit[3] = 0;
 644         rechit[4] = 0;
 645         originalOmega = 0;
 646         originalTheta = 0;
 647         originalPhi =0;
 648       }
 649
 650
 651     // fill rechits
 652     pRICH->AddRecHit3D(nch-1,rechit,originalOmega, originalTheta, originalPhi);
 653     printf("track %d, theta r:%f o:%f, phi r:%f o:%f, omega r:%f o:%f cx:%f cy%f\n\n\n", track, rechit[0], originalTheta, rechit[1], originalPhi, rechit[2], originalOmega, cx, cy);
 654
 655   }
 656
 657   if(type==1)  //reco from clusters
 658     {
 659       pRICH->ResetRawClusters();
 660       //Int_t nent=(Int_t)gAlice->TreeR()->GetEntries();
 661       //gAlice->TreeR()->GetEvent(track);
 662       //printf("Going to branch %d\n",track);
 663       //gAlice->GetEvent(nev);
 664     }
 665
 666
 667   //printf("\n\n\n\n");
 668   gAlice->TreeR()->Fill();
 669   TClonesArray *fRec;
 670   for (i=0;i<kNCH;i++) {
 671     fRec=pRICH->RecHitsAddress3D(i);
 672     int ndig=fRec->GetEntriesFast();
 673     printf ("Chamber %d, rings %d\n",i+1,ndig);
 674   }
 675
 676   fc4->cd(1);
 677   AngleAct->Draw();
 678   fc4->cd(2);
 679   Activation->Draw();
 680
 681   pRICH->ResetRecHits3D();
 682
 683   free_i3tensor(point,0,kDimensionTheta,0,kDimensionPhi,0,kDimensionOmega);
 684   free_i3tensor(point1,0,kDimensionTheta,0,kDimensionPhi,0,kDimensionOmega);
 685
 686
 687 }
 688
 689 Int_t ***AliRICHDetectV1::i3tensor(long nrl, long nrh, long ncl, long nch, long ndl, long ndh)
 690 // allocate a Int_t 3tensor with range t[nrl..nrh][ncl..nch][ndl..ndh]
 691 {
 692   long i,j,nrow=nrh-nrl+1,ncol=nch-ncl+1,ndep=ndh-ndl+1;
 693   Int_t ***t;
 694
 695   int NR_END=1;
 696
 697   // allocate pointers to pointers to rows
 698   t=(Int_t ***) malloc((size_t)((nrow+NR_END)*sizeof(Int_t**)));
 699   if (!t) printf("allocation failure 1 in f3tensor()");
 700   t += NR_END;
 701   t -= nrl;
 702
 703   // allocate pointers to rows and set pointers to them
 704   t[nrl]=(Int_t **) malloc((size_t)((nrow*ncol+NR_END)*sizeof(Int_t*)));
 705   if (!t[nrl]) printf("allocation failure 2 in f3tensor()");
 706   t[nrl] += NR_END;
 707   t[nrl] -= ncl;
 708
 709   // allocate rows and set pointers to them
 710   t[nrl][ncl]=(Int_t *) malloc((size_t)((nrow*ncol*ndep+NR_END)*sizeof(Int_t)));
 711   if (!t[nrl][ncl]) printf("allocation failure 3 in f3tensor()");
 712   t[nrl][ncl] += NR_END;
 713   t[nrl][ncl] -= ndl;
 714
 715   for(j=ncl+1;j<=nch;j++) t[nrl][j]=t[nrl][j-1]+ndep;
 716   for(i=nrl+1;i<=nrh;i++) {
 717     t[i]=t[i-1]+ncol;
 718     t[i][ncl]=t[i-1][ncl]+ncol*ndep;
 719     for(j=ncl+1;j<=nch;j++) t[i][j]=t[i][j-1]+ndep;
 720   }
 721
 722   // return pointer to array of pointers to rows
 723   return t;
 724 }
 725
 726
 727 void AliRICHDetectV1::free_i3tensor(int ***t, long nrl, long nrh, long ncl, long nch,long ndl, long ndh)
 728 // free a Int_t f3tensor allocated by i3tensor()
 729 {
 730   nrh++;ndh++;nch++;//to remove warning
 731   int NR_END=1;
 732
 733   free((char*) (t[nrl][ncl]+ndl-NR_END));
 734   free((char*) (t[nrl]+ncl-NR_END));
 735   free((char*) (t+nrl-NR_END));
 736 }