ITS/AliITSOnlineSDDInjectors.cxx

   1 /**************************************************************************
   2  * Copyright(c) 2007-2009, 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 #include <TFile.h>
  16 #include "AliITSOnlineSDDInjectors.h"
  17 #include "AliLog.h"
  18 #include <TH2F.h>
  19 #include <TF1.h>
  20 #include <TGraphErrors.h>
  21 #include <TMath.h>
  22
  23 /* $Id$ */
  24
  25 ///////////////////////////////////////////////////////////////////
  26 //                                                               //
  27 // Implementation of the class used for SDD injector analysis    //
  28 // Origin: F.Prino, Torino, prino@to.infn.it                     //
  29 //                                                               //
  30 ///////////////////////////////////////////////////////////////////
  31
  32 ClassImp(AliITSOnlineSDDInjectors)
  33
  34 const Float_t AliITSOnlineSDDInjectors::fgkSaturation = 1008.;
  35 const Float_t AliITSOnlineSDDInjectors::fgkDefaultLThreshold = 5.;
  36 const Float_t AliITSOnlineSDDInjectors::fgkDefaultHThreshold = 25.;
  37 const Float_t AliITSOnlineSDDInjectors::fgkDefaultMinSpeed = 5.5;
  38 const Float_t AliITSOnlineSDDInjectors::fgkDefaultMaxSpeed = 9.0;
  39 const Float_t AliITSOnlineSDDInjectors::fgkDefaultMaxErr = 1.5;
  40 const Int_t   AliITSOnlineSDDInjectors::fgkDefaultPolDegree = 3;
  41 const Float_t AliITSOnlineSDDInjectors::fgkDefaultTimeStep = 50.;
  42 const UShort_t AliITSOnlineSDDInjectors::fgkDefaultTbMin[kInjLines] = {10,50,100};
  43 const UShort_t AliITSOnlineSDDInjectors::fgkDefaultTbMax[kInjLines] = {20,70,120};
  44
  45 //______________________________________________________________________
  46 AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors():AliITSOnlineSDD(),fHisto(),fTbZero(0.),fRMSTbZero(0.),fNEvents(0),fParam(),fPolDegree(0),fActualPolDegree(0),fMinDriftSpeed(0.),fMaxDriftSpeed(0.),fMaxDriftSpeedErr(0.),fLowThreshold(0.),fHighThreshold(0.),fFirstPadForFit(0),fLastPadForFit(0),fPadStatusCutForFit(0),fTimeStep(0.),fUseTimeZeroSignal(kFALSE)
  47 {
  48   // default constructor
  49   SetPositions();
  50   SetDefaults();
  51   SetTimeStep(fgkDefaultTimeStep);
  52 }
  53 //______________________________________________________________________
  54 AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors(Int_t nddl, Int_t ncarlos, Int_t sid):AliITSOnlineSDD(nddl,ncarlos,sid),fHisto(),fTbZero(0.),fRMSTbZero(0.),fNEvents(0),fParam(),fPolDegree(0),fActualPolDegree(0),fMinDriftSpeed(0.),fMaxDriftSpeed(0.),fMaxDriftSpeedErr(0.),fLowThreshold(0.),fHighThreshold(0.),fFirstPadForFit(0),fLastPadForFit(0),fPadStatusCutForFit(0),fTimeStep(0.),fUseTimeZeroSignal(kFALSE)
  55 {
  56 // standard constructor
  57   SetPositions();
  58   SetDefaults();
  59   SetTimeStep(fgkDefaultTimeStep);
  60 }
  61 //______________________________________________________________________
  62 AliITSOnlineSDDInjectors::~AliITSOnlineSDDInjectors(){
  63   // Destructor
  64   // fHisto should not be deleted here because it points to an histo created
  65   // by the external code which calls the method AnalyzeEvent
  66   // if(fHisto) delete fHisto;
  67   if(fParam) delete [] fParam;
  68 }
  69 //______________________________________________________________________
  70 void AliITSOnlineSDDInjectors::SetDefaults(){
  71   for(Int_t i=0;i<kInjLines;i++) {
  72     SetInjLineRange(i,fgkDefaultTbMin[i],fgkDefaultTbMax[i]);
  73     SetUseLine(i,kTRUE);
  74   }
  75   SetThresholds(fgkDefaultLThreshold,fgkDefaultHThreshold);
  76   SetPolDegree(fgkDefaultPolDegree);
  77   SetMinDriftSpeed(fgkDefaultMinSpeed);
  78   SetMaxDriftSpeed(fgkDefaultMaxSpeed);
  79   SetMaxDriftSpeedErr(fgkDefaultMaxErr);
  80   SetFitLimits(1,kInjPads-2); // exclude first and last pad
  81   SetPadStatusCutForFit();
  82 }
  83 //______________________________________________________________________
  84 void AliITSOnlineSDDInjectors::SetPositions(){
  85   //
  86   Double_t xLinFromCenterUm[kInjLines]={31860.,17460.,660.};
  87   Double_t xAnodeFromCenterUm=35085;
  88   for(Int_t i=0;i<kInjLines;i++){
  89     fPosition[i]=xAnodeFromCenterUm-xLinFromCenterUm[i];
  90     fPosition[i]/=10000.; // from microns to cm
  91   }
  92 }
  93 //______________________________________________________________________
  94 void AliITSOnlineSDDInjectors::Reset(){
  95   //
  96   for(Int_t i=0;i<kInjPads;i++){
  97     fDriftSpeed[i]=0.;
  98     fDriftSpeedErr[i]=0.;
  99   }
 100   for(Int_t i=0;i<kInjPads;i++){
 101     for(Int_t j=0;j<kInjLines;j++){
 102       fGoodInj[i][j]=0;
 103       fCentroid[i][j]=0.;
 104       fRMSCentroid[i][j]=0.;
 105     }
 106   }
 107 }
 108 //______________________________________________________________________
 109 void AliITSOnlineSDDInjectors::AnalyzeEvent(TH2F* his){
 110   //
 111   AddEvent(his);
 112   FitDriftSpeedVsAnode();
 113 }
 114 //______________________________________________________________________
 115 void AliITSOnlineSDDInjectors::AddEvent(TH2F* his){
 116   // Add the drift speed from current event to the average value
 117   if(fNEvents==0){
 118     for(Int_t i=0;i<kInjPads;i++){
 119       fSumDriftSpeed[i]=0.;
 120       fSumSqDriftSpeed[i]=0.;
 121       fSumPadStatus[i]=0;
 122       fSumPadStatusCut[i]=0;
 123       fNEventsInPad[i]=0;
 124     }
 125   }
 126   Reset();
 127   fHisto=his;
 128   FindGoodInjectors();
 129   FindCentroids();
 130   CalcTimeBinZero();
 131   for(Int_t j=0;j<kInjPads;j++){
 132     CalcDriftSpeed(j);
 133     Int_t padStatus=GetInjPadStatus(j);
 134     fSumPadStatus[j]+=padStatus;
 135     if(padStatus>fPadStatusCutForFit){
 136       fSumDriftSpeed[j]+=fDriftSpeed[j];
 137       fSumSqDriftSpeed[j]+=fDriftSpeed[j]*fDriftSpeed[j];
 138       fSumPadStatusCut[j]+=padStatus;
 139       fNEventsInPad[j]++;
 140     }
 141   }
 142   ++fNEvents;
 143 }
 144 //______________________________________________________________________
 145 Double_t AliITSOnlineSDDInjectors::GetRMSDriftSpeed(Int_t ipad) const {
 146   //
 147   if(fNEventsInPad[ipad]<=1) return 0.;
 148   Double_t mean=fSumDriftSpeed[ipad]/(Double_t)fNEventsInPad[ipad];
 149   Double_t diff=fSumSqDriftSpeed[ipad]/(Double_t)fNEventsInPad[ipad]-mean*mean;
 150   if(diff<0.) diff=0.;
 151   return TMath::Sqrt(diff);
 152 }
 153
 154 //______________________________________________________________________
 155 void AliITSOnlineSDDInjectors::FitMeanDriftSpeedVsAnode(){
 156   // Calculates
 157   if(fNEvents==0) return;
 158   for(Int_t i=0;i<kInjPads;i++){
 159     fDriftSpeed[i]=GetMeanDriftSpeed(i);
 160     Int_t padStatusCut=(Int_t)(GetMeanPadStatusCut(i)+0.5);
 161     for(Int_t ilin=0; ilin<kInjLines ; ilin++) fGoodInj[i][ilin]=(padStatusCut&1<<ilin)>>ilin;
 162     if(fNEventsInPad[i]>1){
 163       Double_t rms=GetRMSDriftSpeed(i);
 164       if(rms>0.) fDriftSpeedErr[i]=rms/TMath::Sqrt(fNEventsInPad[i]);
 165     }else{
 166       for(Int_t ilin=0; ilin<kInjLines ; ilin++) fGoodInj[i][ilin]=0;
 167     }
 168   }
 169   FitDriftSpeedVsAnode();
 170   for(Int_t i=0;i<kInjPads;i++){
 171     Int_t padStatus=(Int_t)(GetMeanPadStatusCut(i)+0.5);
 172     for(Int_t ilin=0; ilin<kInjLines ; ilin++) fGoodInj[i][ilin]=(padStatus&1<<ilin)>>ilin;
 173   }
 174 }
 175 //______________________________________________________________________
 176 TGraphErrors* AliITSOnlineSDDInjectors::GetTimeVsDistGraph(Int_t jpad) const{
 177   //
 178   const Int_t kPts=kInjLines+1;
 179   Float_t x[kPts],y[kPts],ex[kPts],ey[kPts];
 180   x[0]=0.;
 181   ex[0]=0.;
 182   y[0]=fTbZero;
 183   ey[0]=0.;
 184   for(Int_t i=0;i<kInjLines;i++){
 185     x[i+1]=fPosition[i];
 186     ex[i+1]=0.;
 187     y[i+1]=fCentroid[jpad][i];
 188     ey[i+1]=fRMSCentroid[jpad][i];
 189   }
 190   TGraphErrors *g=new TGraphErrors(4,x,y,ex,ey);
 191   return g;
 192 }
 193
 194 //______________________________________________________________________
 195 TGraphErrors* AliITSOnlineSDDInjectors::GetDriftSpeedGraph() const{
 196   //
 197   Int_t ipt=0;
 198   TGraphErrors *g=new TGraphErrors(0);
 199   for(Int_t i=0;i<kInjPads;i++){
 200     if(fDriftSpeed[i]>0){
 201       g->SetPoint(ipt,GetAnodeNumber(i),fDriftSpeed[i]);
 202       g->SetPointError(ipt,0,fDriftSpeedErr[i]);
 203       ipt++;
 204     }
 205   }
 206   return g;
 207 }
 208 //______________________________________________________________________
 209 TGraphErrors* AliITSOnlineSDDInjectors::GetSelectedDriftSpeedGraph(Int_t minAcceptStatus) const{
 210   // TGraphErrors with only pads with status of injector >= minAcceptStatus
 211   Int_t ipt=0;
 212   TGraphErrors *g=new TGraphErrors(0);
 213   for(Int_t i=0;i<kInjPads;i++){
 214     Int_t padStatus = GetInjPadStatus(i);
 215     if(fDriftSpeed[i]>0 && padStatus >= minAcceptStatus ){
 216       g->SetPoint(ipt,GetAnodeNumber(i),fDriftSpeed[i]);
 217       g->SetPointError(ipt,0,fDriftSpeedErr[i]);
 218       ipt++;
 219     }
 220   }
 221   return g;
 222 }
 223 //______________________________________________________________________
 224 void AliITSOnlineSDDInjectors::CalcTimeBinZero(){
 225   // Get time zero from trigger signal
 226   Double_t tzero=0.,intCont=0.,rmsPeak=0.;
 227   Bool_t isTbUsed[256];
 228   Int_t nTbUsed=0;
 229   for(Int_t i=0;i<256;i++) isTbUsed[i]=0;
 230   for(Int_t ian=0;ian<fgkNAnodes;ian++){
 231     for(Int_t itb=1;itb<fTbMin[0];itb++){
 232       Double_t cont=fHisto->GetBinContent(itb,ian+1);
 233       Double_t contm1=fHisto->GetBinContent(itb+1,ian+1);
 234       Double_t contp1=fHisto->GetBinContent(itb-1,ian+1);
 235       if(cont>fLowThreshold){
 236         if(contm1>fHighThreshold || cont>fHighThreshold || contp1>fHighThreshold){
 237           tzero+=cont*float(itb);
 238           rmsPeak+=cont*float(itb)*float(itb);
 239           intCont+=cont;
 240           if(!isTbUsed[itb]){
 241             isTbUsed[itb]=1;
 242             ++nTbUsed;
 243           }
 244         }
 245       }
 246     }
 247   }
 248   if(intCont>0){
 249     fTbZero=tzero/intCont;
 250     fRMSTbZero=TMath::Sqrt(rmsPeak/intCont-fTbZero*fTbZero);
 251   }
 252   if(nTbUsed==1) fRMSTbZero=0.5;
 253 }
 254
 255 //______________________________________________________________________
 256 void AliITSOnlineSDDInjectors::FitDriftSpeedVsAnode(){
 257   // fits the anode dependence of drift speed
 258
 259   Float_t rangeForMax[2]={78.,178.};
 260   PolyFit(fPolDegree);
 261   fActualPolDegree=fPolDegree;
 262   if(fPolDegree==3){
 263     Double_t deltasq=fParam[2]*fParam[2]-3*fParam[1]*fParam[3];
 264     Double_t zero1=-999.;
 265     Double_t zero2=-999.;
 266     if(deltasq>=0. && TMath::Abs(fParam[3])>0.){
 267       Double_t delta=TMath::Sqrt(deltasq);
 268       zero1=(-fParam[2]+delta)/3./fParam[3];
 269       zero2=(-fParam[2]-delta)/3./fParam[3];
 270     }
 271     Bool_t twoZeroes=kFALSE;
 272     Bool_t oneZero=kFALSE;
 273     if(zero1>0. && zero1<256. && zero2>0. && zero2<256.) twoZeroes=kTRUE;
 274     if(zero1>rangeForMax[0] && zero1<rangeForMax[1]) oneZero=kTRUE;
 275     if(zero2>rangeForMax[0] && zero2<rangeForMax[1]) oneZero=kTRUE;
 276     if(!oneZero || twoZeroes){
 277       PolyFit(2);
 278       Double_t xmax=-999.;
 279       if(fParam[2]<0.) xmax=-fParam[1]/2./fParam[2];
 280       if(xmax>rangeForMax[0] && xmax<rangeForMax[1]){
 281         fActualPolDegree=2;
 282       }else{
 283         Double_t averSpeed=0.;
 284         Double_t sumWei=0.;
 285         Int_t nUsedPts=0;
 286         for(Int_t jpad=fFirstPadForFit; jpad<=fLastPadForFit; jpad++){
 287           if(fDriftSpeed[jpad]>0 && GetInjPadStatus(jpad)>fPadStatusCutForFit){
 288             Double_t wei=1./fDriftSpeedErr[jpad]/fDriftSpeedErr[jpad];
 289             averSpeed+=wei*fDriftSpeed[jpad];
 290             sumWei+=wei;
 291             nUsedPts++;
 292           }
 293         }
 294         if(sumWei>0.) averSpeed/=sumWei;
 295         if(nUsedPts<fPolDegree+1) averSpeed=0;
 296         fParam[0]=averSpeed;
 297         for(Int_t i=1; i < fPolDegree+1; i++) fParam[i]=0.;
 298         fActualPolDegree=0;
 299       }
 300     }
 301   }
 302 }
 303 //______________________________________________________________________
 304 void AliITSOnlineSDDInjectors::PolyFit(Int_t degree){
 305   // fits the anode dependence of drift speed with a polynomial function
 306   const Int_t kNn=degree+1;
 307   const Int_t kDimens=fPolDegree+1;
 308
 309   Double_t **mat = new Double_t*[kNn];
 310   for(Int_t i=0; i < kNn; i++) mat[i] = new Double_t[kNn];
 311   Double_t *vect = new Double_t[kNn];
 312
 313   for(Int_t k1=0;k1<kNn;k1++){
 314     vect[k1]=0;
 315     for(Int_t k2=0;k2<kNn;k2++){
 316       mat[k1][k2]=0;
 317     }
 318   }
 319   Int_t npts = 0;
 320   for(Int_t k1=0;k1<kNn;k1++){
 321     for(Int_t jpad=fFirstPadForFit; jpad<=fLastPadForFit; jpad++){
 322       Double_t x=(Double_t)GetAnodeNumber(jpad);
 323       if(fDriftSpeed[jpad]>0 && GetInjPadStatus(jpad)>fPadStatusCutForFit){
 324         vect[k1]+=fDriftSpeed[jpad]*TMath::Power(x,k1)/TMath::Power(fDriftSpeedErr[jpad],2);
 325         if(k1==0) npts++;
 326         for(Int_t k2=0;k2<kNn;k2++){
 327           mat[k1][k2]+=TMath::Power(x,k1+k2)/TMath::Power(fDriftSpeedErr[jpad],2);
 328         }
 329       }
 330     }
 331   }
 332   if(npts<fPolDegree+1){
 333     if(fParam) delete [] fParam;
 334     fParam=new Double_t[kDimens];
 335     for(Int_t i=0; i<kDimens;i++)fParam[i]=0;
 336   }else{
 337     Int_t *iPivot = new Int_t[kNn];
 338     Int_t *indxR = new Int_t[kNn];
 339     Int_t *indxC = new Int_t[kNn];
 340     for(Int_t i=0;i<kNn;i++) iPivot[i]=0;
 341     Int_t iCol=-1,iRow=-1;
 342     for(Int_t i=0;i<kNn;i++){
 343       Double_t big=0.;
 344       for(Int_t j=0;j<kNn;j++){
 345         if(iPivot[j]!=1){
 346           for(Int_t k=0;k<kNn;k++){
 347             if(iPivot[k]==0){
 348               if(TMath::Abs(mat[j][k])>=big){
 349                 big=TMath::Abs(mat[j][k]);
 350                 iRow=j;
 351                 iCol=k;
 352               }
 353             }
 354           }
 355         }
 356       }
 357       iPivot[iCol]++;
 358       Double_t aux;
 359       if(iRow!=iCol){
 360         for(Int_t l=0;l<kNn;l++){
 361           aux=mat[iRow][l];
 362           mat[iRow][l]=mat[iCol][l];
 363           mat[iCol][l]=aux;
 364         }
 365         aux=vect[iRow];
 366         vect[iRow]=vect[iCol];
 367         vect[iCol]=aux;
 368       }
 369       indxR[i]=iRow;
 370       indxC[i]=iCol;
 371       if(mat[iCol][iCol]==0) break;
 372       Double_t pivinv=1./mat[iCol][iCol];
 373       mat[iCol][iCol]=1;
 374       for(Int_t l=0;l<kNn;l++) mat[iCol][l]*=pivinv;
 375       vect[iCol]*=pivinv;
 376       for(Int_t m=0;m<kNn;m++){
 377         if(m!=iCol){
 378           aux=mat[m][iCol];
 379           mat[m][iCol]=0;
 380           for(Int_t n=0;n<kNn;n++) mat[m][n]-=mat[iCol][n]*aux;
 381           vect[m]-=vect[iCol]*aux;
 382         }
 383       }
 384     }
 385     delete [] iPivot;
 386     delete [] indxR;
 387     delete [] indxC;
 388
 389
 390     if(fParam) delete [] fParam;
 391     fParam=new Double_t[kDimens];
 392     for(Int_t i=0; i<kNn;i++)fParam[i]=vect[i];
 393     if(degree<fPolDegree) for(Int_t i=kNn; i<kDimens;i++)fParam[i]=0.;
 394   }
 395
 396   for(Int_t i=0; i < kNn; i++) delete [] mat[i];
 397   delete [] mat;
 398   delete [] vect;
 399 }
 400 //______________________________________________________________________
 401 void AliITSOnlineSDDInjectors::CalcDriftSpeed(Int_t jpad){
 402   //
 403   Double_t sumY=0,sumX=0,sumXX=0,sumYY=0.,sumXY=0,sumWEI=0.;
 404   Int_t npt=0;
 405   Double_t y[kInjLines],ey[kInjLines];
 406   Double_t tzero=0,erry=0;
 407   for(Int_t i=0;i<kInjLines;i++){
 408     y[i]=fCentroid[jpad][i];
 409     ey[i]=fRMSCentroid[jpad][i];
 410   }
 411   for(Int_t i=0;i<kInjLines;i++){
 412     if(!fUseLine[i]) continue;
 413     if(fGoodInj[jpad][i] && ey[i]!=0){
 414       sumY+=y[i]/ey[i]/ey[i];
 415       sumX+=fPosition[i]/ey[i]/ey[i];
 416       sumXX+=fPosition[i]*fPosition[i]/ey[i]/ey[i];
 417       sumYY+=y[i]*y[i]/ey[i]/ey[i];
 418       sumXY+=fPosition[i]*y[i]/ey[i]/ey[i];
 419       sumWEI+=1./ey[i]/ey[i];
 420       tzero=fTbZero/ey[i]/ey[i];
 421       erry=ey[i]/ey[i]/ey[i];
 422       npt++;
 423     }
 424   }
 425   Double_t slope=0.,eslope=0.;
 426   if(npt==1){
 427     slope=(sumY-tzero)/sumX;
 428     eslope=erry/sumX;
 429   }
 430   if(npt>1){
 431     if(fUseTimeZeroSignal){
 432       sumY+=fTbZero/fRMSTbZero/fRMSTbZero;
 433       sumX+=0.;
 434       sumXX+=0.;
 435       sumYY+=fTbZero*fTbZero/fRMSTbZero/fRMSTbZero;
 436       sumXY+=0.;
 437       sumWEI+=1./fRMSTbZero/fRMSTbZero;
 438     }
 439     slope=(sumWEI*sumXY-sumY*sumX)/(sumWEI*sumXX-sumX*sumX);
 440     eslope=TMath::Sqrt(sumWEI/(sumWEI*sumXX-sumX*sumX));
 441   }
 442
 443   Double_t vel=0,evel=0;
 444   if(slope!=0. && fTimeStep>0.){
 445     vel=1./slope*10000./fTimeStep;// micron/ns
 446     evel=eslope/slope/slope*10000./fTimeStep;// micron/ns
 447   }
 448   if(vel>fMaxDriftSpeed||vel<fMinDriftSpeed || evel>fMaxDriftSpeedErr){
 449     vel=0.;
 450     evel=0.;
 451   }
 452   fDriftSpeed[jpad]=vel;
 453   fDriftSpeedErr[jpad]=evel;
 454 }
 455 //______________________________________________________________________
 456 Int_t AliITSOnlineSDDInjectors::GetAnodeNumber(Int_t iInjPad) const{
 457   // Injectors location along anodes:
 458   // Side left  (UP)   - channel 0: injectors on anodes 0,7,15,...,247,255
 459   // Side right (DOWN) - channel 1: injectors on anodes 0,8,16,...,248,255
 460   Int_t ian=-1;
 461   if(iInjPad>=kInjPads) return ian;
 462   if(fSide==1){  // right side
 463     ian=iInjPad*8;
 464     if(iInjPad==32) ian--;
 465   }else{         // left side
 466     ian=iInjPad*8-1;
 467     if(iInjPad==0) ian=0;
 468   }
 469   return ian;
 470 }
 471 //______________________________________________________________________
 472 Int_t AliITSOnlineSDDInjectors::GetInjPadNumberFromAnode(Int_t nAnode) const{
 473   //
 474   Int_t iInjPad=-1;
 475   if(fSide==1){  // right side
 476     if(nAnode%8==0) iInjPad=nAnode/8;
 477     if(nAnode==255) iInjPad=32;
 478   }else{         // left side
 479     if(nAnode%8==7) iInjPad=1+nAnode/8;
 480     if(nAnode==0) iInjPad=0;
 481   }
 482   if(nAnode>=256) iInjPad=-1;
 483   return iInjPad;
 484 }
 485 //______________________________________________________________________
 486 Int_t AliITSOnlineSDDInjectors::GetInjPadStatus(Int_t jpad) const{
 487   // returns an integer value with status of injector lines for given pad/anode
 488   // status=7  -->  111  all injector are good
 489   // status=6  -->  110  1st line (close to anodes) is bad, other two are good
 490   // ....
 491   // status=1  -->  001  only 1st line (close to anodes) good
 492   // status=0  -->  000  all lines are bad
 493   Int_t istatus=0;
 494   if(jpad>=0 && jpad<kInjPads){
 495     for(Int_t jlin=0;jlin<kInjLines;jlin++) istatus+=fGoodInj[jpad][jlin]<<jlin;
 496   }
 497   return istatus;
 498 }
 499 //______________________________________________________________________
 500 void AliITSOnlineSDDInjectors::FindGoodInjectors(){
 501   //
 502   for(Int_t jpad=0;jpad<kInjPads;jpad++){
 503     Int_t ian=GetAnodeNumber(jpad);
 504     for(Int_t jlin=0;jlin<kInjLines;jlin++){
 505       for(Int_t jjj=fTbMin[jlin];jjj<fTbMax[jlin];jjj++){
 506         Float_t c1=fHisto->GetBinContent(jjj,ian+1);
 507         Float_t c2=fHisto->GetBinContent(jjj+1,ian+1);
 508         //      Float_t c3=fHisto->GetBinContent(jjj+2,ian+1);
 509         if(c1>fLowThreshold && c2>fLowThreshold){
 510           if(c1>fHighThreshold || c2>fHighThreshold){
 511             fGoodInj[jpad][jlin]=1;
 512             break;
 513           }
 514         }
 515       }
 516     }
 517   }
 518 }
 519 //______________________________________________________________________
 520 void AliITSOnlineSDDInjectors::FindCentroids(){
 521   //
 522   for(Int_t jpad=0;jpad<kInjPads;jpad++){
 523     Int_t ian=GetAnodeNumber(jpad);
 524     for(Int_t jlin=0;jlin<kInjLines;jlin++){
 525       if(!fGoodInj[jpad][jlin]) continue;
 526       Double_t maxcont=0;
 527       Int_t ilmax=-1;
 528       for(Int_t jjj=fTbMin[jlin];jjj<fTbMax[jlin];jjj++){
 529         Double_t cont=fHisto->GetBinContent(jjj,ian+1);
 530         if(cont>maxcont){
 531           maxcont=cont;
 532           ilmax=jjj;
 533         }
 534       }
 535       Double_t intCont=0;
 536       Int_t jjj=ilmax;
 537       while(1){
 538         Double_t cont=fHisto->GetBinContent(jjj,ian+1);
 539         if(cont<fLowThreshold) break;
 540         if(cont<fgkSaturation){
 541           fCentroid[jpad][jlin]+=cont*(Double_t)jjj;
 542           fRMSCentroid[jpad][jlin]+=cont*(Double_t)jjj*(Double_t)jjj;
 543           intCont+=cont;
 544         }
 545         jjj--;
 546       }
 547       jjj=ilmax+1;
 548       while(1){
 549         Double_t cont=fHisto->GetBinContent(jjj,ian+1);
 550         if(cont<fLowThreshold) break;
 551         if(cont<fgkSaturation){
 552           fCentroid[jpad][jlin]+=cont*float(jjj);
 553           fRMSCentroid[jpad][jlin]+=cont*(Double_t)jjj*(Double_t)jjj;
 554           intCont+=cont;
 555         }
 556         jjj++;
 557       }
 558       if(intCont>0){
 559         fCentroid[jpad][jlin]/=intCont;
 560         fRMSCentroid[jpad][jlin]=TMath::Sqrt(fRMSCentroid[jpad][jlin]/intCont-fCentroid[jpad][jlin]*fCentroid[jpad][jlin])/TMath::Sqrt(intCont);
 561       }
 562       else{
 563         fCentroid[jpad][jlin]=0.;
 564         fRMSCentroid[jpad][jlin]=0.;
 565         fGoodInj[jpad][jlin]=0;
 566       }
 567       if(fRMSCentroid[jpad][jlin]==0) fGoodInj[jpad][jlin]=0;
 568     }
 569   }
 570 }
 571 //______________________________________________________________________
 572 void AliITSOnlineSDDInjectors::PrintInjectorStatus(){
 573   //
 574   for(Int_t jpad=0;jpad<kInjPads;jpad++){
 575     printf("Line%d-Anode%d: %d %d %d\n",jpad,GetAnodeNumber(jpad),fGoodInj[jpad][0],fGoodInj[jpad][1],fGoodInj[jpad][2]);
 576   }
 577 }
 578 //______________________________________________________________________
 579 void AliITSOnlineSDDInjectors::PrintCentroids(){
 580   //
 581   for(Int_t jpad=0;jpad<kInjPads;jpad++){
 582     printf("Line%d-Anode%d: %f+-%f %f+-%f %f+-%f\n",jpad,GetAnodeNumber(jpad),fCentroid[jpad][0],fRMSCentroid[jpad][0],fCentroid[jpad][1],fRMSCentroid[jpad][1],fCentroid[jpad][2],fRMSCentroid[jpad][2]);
 583   }
 584 }
 585 //______________________________________________________________________
 586 void AliITSOnlineSDDInjectors::WriteToASCII(Int_t evNumb, UInt_t timeStamp, Int_t optAppend){
 587   //
 588   Char_t outfilnam[100];
 589   sprintf(outfilnam,"SDDinj_ddl%02dc%02d_sid%d.data",fDDL,fCarlos,fSide);
 590   FILE* outf;
 591   if(optAppend==0){
 592     outf=fopen(outfilnam,"w");
 593     fprintf(outf,"%d\n",fActualPolDegree);
 594   }
 595   else outf=fopen(outfilnam,"a");
 596   fprintf(outf,"%d   %d   ",evNumb,timeStamp);
 597   for(Int_t ic=0;ic<fPolDegree+1;ic++){
 598     fprintf(outf,"%G ",fParam[ic]);
 599   }
 600   fprintf(outf,"\n");
 601   fclose(outf);
 602 }
 603 //______________________________________________________________________
 604 TH1F* AliITSOnlineSDDInjectors::GetMeanDriftSpeedVsPadHisto() const{
 605   Char_t hisnam[20];
 606   sprintf(hisnam,"hdrsp%02dc%02ds%d",fDDL,fCarlos,fSide);
 607   TH1F* h=new TH1F(hisnam,"",kInjPads,-0.5,kInjPads-0.5);
 608   if(fNEvents>0){
 609     for(Int_t i=0;i<kInjPads;i++){
 610       h->SetBinContent(i+1,GetMeanDriftSpeed(i));
 611       Double_t rms=GetRMSDriftSpeed(i);
 612       Double_t err=0.;
 613       if(rms>0.) err=rms/TMath::Sqrt(fNEventsInPad[i]);
 614       h->SetBinError(i+1,err);
 615     }
 616   }
 617   return h;
 618 }
 619 //______________________________________________________________________
 620 Bool_t AliITSOnlineSDDInjectors::WriteToROOT(TFile *fil) const {
 621   //
 622   if(fil==0){
 623     AliWarning("Invalid pointer to ROOT file");
 624     return kFALSE;
 625   }
 626   Char_t hisnam[20];
 627   fil->cd();
 628   sprintf(hisnam,"hdrsp%02dc%02ds%d",fDDL,fCarlos,fSide);
 629   TH1F hdsp(hisnam,"",kInjPads,-0.5,kInjPads-0.5);
 630   if(fNEvents==0){
 631     AliWarning("Zero analyzed events");
 632     return kFALSE;
 633   }
 634
 635   for(Int_t i=0;i<kInjPads;i++){
 636     hdsp.SetBinContent(i+1,GetMeanDriftSpeed(i));
 637     Double_t rms=GetRMSDriftSpeed(i);
 638     Double_t err=0.;
 639     if(rms>0.) err=rms/TMath::Sqrt(fNEventsInPad[i]);
 640     hdsp.SetBinError(i+1,err);
 641   }
 642   hdsp.Write();
 643   return kTRUE;
 644 }
 645 //______________________________________________________________________
 646 void AliITSOnlineSDDInjectors::WriteInjectorStatusToASCII(){
 647   // dump status of injectors encoded into UInt_t
 648   // 5 bits (value 0-31) to store number of pads with given status
 649   Char_t outfilnam[100];
 650   sprintf(outfilnam,"SDDinj_ddl%02dc%02d_sid%d.data",fDDL,fCarlos,fSide);
 651   FILE* outf=fopen(outfilnam,"a");
 652   Int_t n[8]={0,0,0,0,0,0,0,0};
 653   for(Int_t jpad=fFirstPadForFit; jpad<=fLastPadForFit; jpad++){
 654     Int_t statusPad=GetInjPadStatus(jpad);
 655     ++n[statusPad];
 656   }
 657   UInt_t statusInj=0;
 658   statusInj+=(n[7]&0x1F)<<25; // bits 25-29: n. of pads with status 7
 659   statusInj+=(n[6]&0x1F)<<20; // bits 20-24: n. of pads with status 6
 660   statusInj+=(n[5]&0x1F)<<15; // bits 15-19: n. of pads with status 5
 661   statusInj+=(n[4]&0x1F)<<10; // bits 10-14: n. of pads with status 4
 662   statusInj+=(n[3]&0x1F)<<5;  // bits  5- 9: n. of pads with status 3
 663   statusInj+=(n[2]&0x1F);     // bits  0- 4: n. of pads with status 2
 664
 665   fprintf(outf,"-99 %u\n",statusInj); // -99 used in preprocessor to find line
 666                                       // with injector status info
 667   fclose(outf);
 668
 669 }