[u/mrichter/AliRoot.git] / ITS / AliITSOnlineSDDInjectors.cxx

/**************************************************************************
 * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/
#include "AliITSOnlineSDDInjectors.h"
#include <TH2F.h>
#include <TGraphErrors.h>
#include <TMath.h>

///////////////////////////////////////////////////////////////////
//                                                               //
// Implementation of the class used for SDD injector analysis    //
// Origin: F.Prino, Torino, prino@to.infn.it                     //
//                                                               //
///////////////////////////////////////////////////////////////////

ClassImp(AliITSOnlineSDDInjectors)

const Float_t AliITSOnlineSDDInjectors::fgkSaturation = 1008.;
const Float_t AliITSOnlineSDDInjectors::fgkJitterTB = 8.;

//______________________________________________________________________
  AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors():AliITSOnlineSDD(),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftVel(0.),fMaxDriftVel(0.),fThreshold(0.)
{
  // default constructor
  SetMinDriftVel();
  SetMaxDriftVel();
  SetRangeLine1();
  SetRangeLine2();
  SetRangeLine3();
  SetPositions();
  SetPolOrder();
  SetThreshold();
}
//______________________________________________________________________
AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors(Int_t mod, Int_t sid):AliITSOnlineSDD(mod,sid),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftVel(0.),fMaxDriftVel(0.),fThreshold(0.)
{ 
// standard constructor
  SetMinDriftVel();
  SetMaxDriftVel();
  SetRangeLine1();
  SetRangeLine2();
  SetRangeLine3();
  SetPositions();
  SetPolOrder();
  SetThreshold();
}
//______________________________________________________________________
AliITSOnlineSDDInjectors::~AliITSOnlineSDDInjectors(){
  // Destructor
  if(fHisto) delete fHisto;  
  if(fParam) delete [] fParam;
}
//______________________________________________________________________
void AliITSOnlineSDDInjectors::SetPositions(){
  // 
  Float_t kLinFromCenterUm[3]={31860.,17460.,660.};
  Float_t kAnodeFromCenterUm=35085;
  for(Int_t i=0;i<3;i++){
    fPosition[i]=kAnodeFromCenterUm-kLinFromCenterUm[i];
    fPosition[i]/=10000.; // from microns to cm
  }
}
//______________________________________________________________________
void AliITSOnlineSDDInjectors::Reset(){
  //
  for(Int_t i=0;i<kNInjectors;i++){ 
    fDriftVel[i]=0.;
    fSigmaDriftVel[i]=0.;
  }
  for(Int_t i=0;i<kNInjectors;i++){
    for(Int_t j=0;j<3;j++){
      fGoodInj[i][j]=0;
      fCentroid[i][j]=0.;
      fRMSCentroid[i][j]=0.;
    }
  }
}
//______________________________________________________________________
void AliITSOnlineSDDInjectors::AnalyzeEvent(TH2F* his){
  //
  Reset();
  fHisto=his;
  FindGoodInjectors();
  FindCentroids();
  CalcTimeBinZero();
  for(Int_t j=0;j<kNInjectors;j++) CalcDriftVelocity(j);
  FitDriftVelocityVsAnode();
}
//______________________________________________________________________
TGraphErrors* AliITSOnlineSDDInjectors::GetLineGraph(Int_t jlin){
  // 
  Float_t x[4],y[4],ex[4],ey[4];
  x[0]=0.;
  ex[0]=0.;
  y[0]=fTbZero;
  ey[0]=0.;
  for(Int_t i=0;i<3;i++){
    x[i+1]=fPosition[i];
    ex[i+1]=0.;
    y[i+1]=fCentroid[jlin][i];
    ey[i+1]=fRMSCentroid[jlin][i];
  }
  TGraphErrors *g=new TGraphErrors(4,x,y,ex,ey);
  return g;
}
//______________________________________________________________________
Float_t AliITSOnlineSDDInjectors::GetDriftCoordinate(Float_t cAnode, Float_t cTimeBin){
  //
  Float_t vel=0;
  for(Int_t i=0;i<=fPolOrder;i++) vel+=fParam[i]*TMath::Power(cAnode,(Float_t)i);
  return vel*(cTimeBin-(fTbZero-fgkJitterTB))*25/1000.; 
}
//______________________________________________________________________
TGraphErrors* AliITSOnlineSDDInjectors::GetDriftVelocityGraph() const{
  // 
  Int_t ipt=0;
  TGraphErrors *g=new TGraphErrors(0);
  for(Int_t i=0;i<kNInjectors;i++){
    if(fDriftVel[i]>0){ 
      g->SetPoint(ipt,GetAnodeNumber(i),fDriftVel[i]);
      g->SetPointError(ipt,0,fSigmaDriftVel[i]);
      ipt++;
    }
  }
  return g;
}
//______________________________________________________________________
void AliITSOnlineSDDInjectors::CalcTimeBinZero(){
  //
  Float_t tzero=0.,intCont=0.;
  for(Int_t ian=0;ian<fgkNAnodes;ian++){
    for(Int_t itb=1;itb<fTbMin[0];itb++){
      Float_t cont=fHisto->GetBinContent(itb,ian+1);
      if(cont>fThreshold){
	tzero+=cont*float(itb);
	intCont+=cont;
      }
    }
  }
  if(intCont>0) fTbZero=tzero/intCont;
}
//______________________________________________________________________
void AliITSOnlineSDDInjectors::FitDriftVelocityVsAnode(){
  const Int_t nn=fPolOrder+1;
  Float_t **mat = new Float_t*[nn];
  for(Int_t i=0; i < nn; i++) mat[i] = new Float_t[nn];
  Float_t *vect = new Float_t[nn];
  for(Int_t k1=0;k1<nn;k1++){
    vect[k1]=0;
    for(Int_t k2=0;k2<nn;k2++){
      mat[k1][k2]=0;
      for(Int_t n=0; n<kNInjectors;n++){
	Float_t x=(Float_t)GetAnodeNumber(n);
	if(fDriftVel[n]>0) mat[k1][k2]+=TMath::Power(x,k1+k2)/TMath::Power(fSigmaDriftVel[n],2);
      }
    }
  }
  for(Int_t k1=0;k1<nn;k1++){
    for(Int_t n=0; n<kNInjectors;n++){
      Float_t x=(Float_t)GetAnodeNumber(n);
      if(fDriftVel[n]>0) vect[k1]+=fDriftVel[n]*TMath::Power(x,k1)/TMath::Power(fSigmaDriftVel[n],2);
    }
  }
  Int_t *iPivot = new Int_t[nn];
  Int_t *indxR = new Int_t[nn];
  Int_t *indxC = new Int_t[nn];
  for(Int_t i=0;i<nn;i++) iPivot[i]=0;
  Int_t iCol=-1,iRow=-1;
  for(Int_t i=0;i<nn;i++){
    Float_t big=0.;
    for(Int_t j=0;j<nn;j++){
      if(iPivot[j]!=1){
	for(Int_t k=0;k<nn;k++){
	   if(iPivot[k]==0){
	     if(TMath::Abs(mat[j][k])>=big){
	       big=TMath::Abs(mat[j][k]);
	       iRow=j;
	       iCol=k;
	     }
	  }
	}
      }
    }
    iPivot[iCol]++;
    Float_t aux;
    if(iRow!=iCol){
      for(Int_t l=0;l<nn;l++){
	aux=mat[iRow][l];
	mat[iRow][l]=mat[iCol][l];
	mat[iCol][l]=aux;
      }
      aux=vect[iRow];
      vect[iRow]=vect[iCol];
      vect[iCol]=aux;
    }
    indxR[i]=iRow;
    indxC[i]=iCol;
    if(mat[iCol][iCol]==0) break;
    Float_t pivinv=1./mat[iCol][iCol];
    mat[iCol][iCol]=1;
    for(Int_t l=0;l<nn;l++) mat[iCol][l]*=pivinv;
    vect[iCol]*=pivinv;
    for(Int_t m=0;m<nn;m++){
      if(m!=iCol){
	aux=mat[m][iCol];
	mat[m][iCol]=0;
	for(Int_t n=0;n<nn;n++) mat[m][n]-=mat[iCol][n]*aux;
	vect[m]-=vect[iCol]*aux;
      }
    }    
  }
  delete [] iPivot;
  delete [] indxR;
  delete [] indxC;

  if(fParam) delete [] fParam;
  fParam=new Float_t[nn];
  for(Int_t i=0; i<nn;i++)fParam[i]=vect[i];

  for(Int_t i=0; i < nn; i++) delete [] mat[i];
  delete [] mat;
  delete [] vect;
}
//______________________________________________________________________
void AliITSOnlineSDDInjectors::CalcDriftVelocity(Int_t jlin){
  // 
  Float_t sumY=0,sumX=0,sumXX=0,sumYY=0.,sumXY=0,sumWEI=0.;
  Int_t npt=0;
  Float_t y[3],ey[3];
  Float_t tzero=0,erry=0;
  for(Int_t i=0;i<3;i++){ 
    y[i]=fCentroid[jlin][i];
    ey[i]=fRMSCentroid[jlin][i];
  }
  for(Int_t i=0;i<3;i++){
    if(fGoodInj[jlin][i]){
      sumY+=y[i]/ey[i]/ey[i];
      sumX+=fPosition[i]/ey[i]/ey[i];
      sumXX+=fPosition[i]*fPosition[i]/ey[i]/ey[i];
      sumYY+=y[i]*y[i]/ey[i]/ey[i];
      sumXY+=fPosition[i]*y[i]/ey[i]/ey[i];
      sumWEI+=1./ey[i]/ey[i];
      tzero=fTbZero/ey[i]/ey[i];
      erry=ey[i];
      npt++;
    }
  }
  Float_t vel=0,evel=0;
  if(npt>1){ 
    Float_t slope=(sumWEI*sumXY-sumY*sumX)/(sumWEI*sumXX-sumX*sumX);
    Float_t eslope=TMath::Sqrt(sumWEI/(sumWEI*sumXX-sumX*sumX));
    vel=1./slope*10000./25.;// micron/ns
    evel=eslope/slope/slope*10000./25.;// micron/ns
  }
  if(npt==1){
    Float_t slope=(sumY-tzero)/sumX;
    Float_t eslope=erry/sumX;
    vel=1./slope*10000./25.;// micron/ns    
    evel=eslope/slope/slope*10000./25.;// micron/ns
  }
  if(vel>fMaxDriftVel||vel<fMinDriftVel){ 
    vel=0.;
    evel=0.;
  }
  fDriftVel[jlin]=vel;
  fSigmaDriftVel[jlin]=evel;
}
//______________________________________________________________________
Int_t AliITSOnlineSDDInjectors::GetAnodeNumber(Int_t iInjLine) const{
  //
  Int_t ian=-1;
  if(iInjLine>32) return ian;
  if(!fSide){
    ian=iInjLine*8;
    if(iInjLine==32) ian--;
  }else{
    ian=iInjLine*8-1;
    if(iInjLine==0) ian=0;
  }
  return ian;
}

//______________________________________________________________________
void AliITSOnlineSDDInjectors::FindGoodInjectors(){
  // 
  for(Int_t iii=0;iii<kNInjectors;iii++){
    Int_t ian=GetAnodeNumber(iii);
    for(Int_t ninj=0;ninj<3;ninj++){
      for(Int_t jjj=fTbMin[ninj];jjj<fTbMax[ninj];jjj++){
	Float_t c1=fHisto->GetBinContent(jjj,ian+1);
	Float_t c2=fHisto->GetBinContent(jjj+1,ian+1);
	Float_t c3=fHisto->GetBinContent(jjj+2,ian+1);
	if(c1>fThreshold && c2>fThreshold && c3>fThreshold){ 
	  fGoodInj[iii][ninj]=1;
	  break;
	}
      }
      //      for(Int_t jjj=fTbMin[ninj];jjj<fTbMax[ninj];jjj++){
      //      	Float_t c1=fHisto->GetBinContent(jjj,ian+1);
      //      	if(c1>=fgkSaturation){
      //      	  fGoodInj[iii][ninj]=0;
      //	  break;
      //	}
      //      }
    }
  }
}
//______________________________________________________________________
void AliITSOnlineSDDInjectors::FindCentroids(){
  // 
  for(Int_t iii=0;iii<kNInjectors;iii++){
    Int_t ian=GetAnodeNumber(iii);
    for(Int_t ninj=0;ninj<3;ninj++){
      if(!fGoodInj[iii][ninj]) continue;
      Float_t maxcont=0;
      Int_t ilmax=-1;
      for(Int_t jjj=fTbMin[ninj];jjj<fTbMax[ninj];jjj++){
	Float_t cont=fHisto->GetBinContent(jjj,ian+1);
	if(cont>maxcont){
	  maxcont=cont;
	  ilmax=jjj;
	}
      }
      Float_t intCont=0;
      Int_t jjj=ilmax;
      while(1){
	Float_t cont=fHisto->GetBinContent(jjj,ian+1);
	if(cont<fThreshold) break;
	if(cont<fgkSaturation){
	  fCentroid[iii][ninj]+=cont*(Float_t)jjj;
	  fRMSCentroid[iii][ninj]+=cont*TMath::Power((Float_t)jjj,2);
	  intCont+=cont;
	}
	jjj--;
      }
      jjj=ilmax+1;
      while(1){
	Float_t cont=fHisto->GetBinContent(jjj,ian+1);
	if(cont<fThreshold) break;
	if(cont<fgkSaturation){
	  fCentroid[iii][ninj]+=cont*float(jjj);
	  fRMSCentroid[iii][ninj]+=cont*TMath::Power((Float_t)jjj,2);
	  intCont+=cont;
	}
	jjj++;
      }
      if(intCont>0){ 
	fCentroid[iii][ninj]/=intCont;
	fRMSCentroid[iii][ninj]=TMath::Sqrt(fRMSCentroid[iii][ninj]/intCont-fCentroid[iii][ninj]*fCentroid[iii][ninj]);
      }
      else{ 
	fCentroid[iii][ninj]=0.;
	fRMSCentroid[iii][ninj]=0.;
	fGoodInj[iii][ninj]=0;
      }
    }
  }
}
//______________________________________________________________________
void AliITSOnlineSDDInjectors::PrintInjMap(){
  //
  for(Int_t iii=0;iii<kNInjectors;iii++){
    printf("Line%d-Anode%d: %d %d %d\n",iii,GetAnodeNumber(iii),fGoodInj[iii][0],fGoodInj[iii][1],fGoodInj[iii][2]);
  }
}
//______________________________________________________________________
void AliITSOnlineSDDInjectors::PrintCentroids(){
  //
  for(Int_t iii=0;iii<kNInjectors;iii++){
    printf("Line%d-Anode%d: %f+-%f %f+-%f %f+-%f\n",iii,GetAnodeNumber(iii),fCentroid[iii][0],fRMSCentroid[iii][0],fCentroid[iii][1],fRMSCentroid[iii][1],fCentroid[iii][2],fRMSCentroid[iii][2]);
  }
}
//______________________________________________________________________
void AliITSOnlineSDDInjectors::WriteToASCII(){
  //
  Char_t outfilnam[100];
  sprintf(outfilnam,"SDDinj_mod%03d_sid%d.data",fModuleId,fSide);
  FILE* outf=fopen(outfilnam,"w");
  for(Int_t ic=0;ic<fPolOrder+1;ic++){
    fprintf(outf,"%G ",fParam[ic]);
  }
  fprintf(outf,"\n");
  fclose(outf);  
}
Commit	Line	Data
348f80b7	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 "AliITSOnlineSDDInjectors.h"
	16	#include <TH2F.h>
	17	#include <TGraphErrors.h>
	18	#include <TMath.h>
	19
	20	///////////////////////////////////////////////////////////////////
	21	// //
	22	// Implementation of the class used for SDD injector analysis //
	23	// Origin: F.Prino, Torino, prino@to.infn.it //
	24	// //
	25	///////////////////////////////////////////////////////////////////
	26
	27	ClassImp(AliITSOnlineSDDInjectors)
	28
	29	const Float_t AliITSOnlineSDDInjectors::fgkSaturation = 1008.;
	30	const Float_t AliITSOnlineSDDInjectors::fgkJitterTB = 8.;
	31
	32	//______________________________________________________________________
	33	AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors():AliITSOnlineSDD(),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftVel(0.),fMaxDriftVel(0.),fThreshold(0.)
	34	{
	35	// default constructor
	36	SetMinDriftVel();
	37	SetMaxDriftVel();
	38	SetRangeLine1();
	39	SetRangeLine2();
	40	SetRangeLine3();
	41	SetPositions();
	42	SetPolOrder();
	43	SetThreshold();
	44	}
	45	//______________________________________________________________________
	46	AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors(Int_t mod, Int_t sid):AliITSOnlineSDD(mod,sid),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftVel(0.),fMaxDriftVel(0.),fThreshold(0.)
beb262b4	47	{
beb262b4	48	// standard constructor
348f80b7	49	SetMinDriftVel();
	50	SetMaxDriftVel();
	51	SetRangeLine1();
	52	SetRangeLine2();
	53	SetRangeLine3();
	54	SetPositions();
	55	SetPolOrder();
	56	SetThreshold();
	57	}
	58	//______________________________________________________________________
	59	AliITSOnlineSDDInjectors::~AliITSOnlineSDDInjectors(){
	60	// Destructor
	61	if(fHisto) delete fHisto;
	62	if(fParam) delete [] fParam;
	63	}
	64	//______________________________________________________________________
	65	void AliITSOnlineSDDInjectors::SetPositions(){
	66	//
	67	Float_t kLinFromCenterUm[3]={31860.,17460.,660.};
	68	Float_t kAnodeFromCenterUm=35085;
	69	for(Int_t i=0;i<3;i++){
	70	fPosition[i]=kAnodeFromCenterUm-kLinFromCenterUm[i];
	71	fPosition[i]/=10000.; // from microns to cm
	72	}
	73	}
	74	//______________________________________________________________________
	75	void AliITSOnlineSDDInjectors::Reset(){
beb262b4	76	//
348f80b7	77	for(Int_t i=0;i<kNInjectors;i++){
	78	fDriftVel[i]=0.;
	79	fSigmaDriftVel[i]=0.;
	80	}
	81	for(Int_t i=0;i<kNInjectors;i++){
	82	for(Int_t j=0;j<3;j++){
	83	fGoodInj[i][j]=0;
	84	fCentroid[i][j]=0.;
	85	fRMSCentroid[i][j]=0.;
	86	}
	87	}
	88	}
	89	//______________________________________________________________________
	90	void AliITSOnlineSDDInjectors::AnalyzeEvent(TH2F* his){
	91	//
	92	Reset();
	93	fHisto=his;
	94	FindGoodInjectors();
	95	FindCentroids();
	96	CalcTimeBinZero();
	97	for(Int_t j=0;j<kNInjectors;j++) CalcDriftVelocity(j);
	98	FitDriftVelocityVsAnode();
	99	}
	100	//______________________________________________________________________
	101	TGraphErrors* AliITSOnlineSDDInjectors::GetLineGraph(Int_t jlin){
	102	//
	103	Float_t x[4],y[4],ex[4],ey[4];
	104	x[0]=0.;
	105	ex[0]=0.;
	106	y[0]=fTbZero;
	107	ey[0]=0.;
	108	for(Int_t i=0;i<3;i++){
	109	x[i+1]=fPosition[i];
	110	ex[i+1]=0.;
	111	y[i+1]=fCentroid[jlin][i];
	112	ey[i+1]=fRMSCentroid[jlin][i];
	113	}
	114	TGraphErrors *g=new TGraphErrors(4,x,y,ex,ey);
	115	return g;
	116	}
	117	//______________________________________________________________________
	118	Float_t AliITSOnlineSDDInjectors::GetDriftCoordinate(Float_t cAnode, Float_t cTimeBin){
beb262b4	119	//
348f80b7	120	Float_t vel=0;
	121	for(Int_t i=0;i<=fPolOrder;i++) vel+=fParam[i]*TMath::Power(cAnode,(Float_t)i);
	122	return vel(cTimeBin-(fTbZero-fgkJitterTB))25/1000.;
	123	}
	124	//______________________________________________________________________
beb262b4	125	TGraphErrors* AliITSOnlineSDDInjectors::GetDriftVelocityGraph() const{
348f80b7	126	//
348f80b7	127	Int_t ipt=0;
	128	TGraphErrors *g=new TGraphErrors(0);
	129	for(Int_t i=0;i<kNInjectors;i++){
	130	if(fDriftVel[i]>0){
	131	g->SetPoint(ipt,GetAnodeNumber(i),fDriftVel[i]);
	132	g->SetPointError(ipt,0,fSigmaDriftVel[i]);
	133	ipt++;
	134	}
	135	}
	136	return g;
	137	}
	138	//______________________________________________________________________
	139	void AliITSOnlineSDDInjectors::CalcTimeBinZero(){
beb262b4	140	//
348f80b7	141	Float_t tzero=0.,intCont=0.;
	142	for(Int_t ian=0;ian<fgkNAnodes;ian++){
	143	for(Int_t itb=1;itb<fTbMin[0];itb++){
	144	Float_t cont=fHisto->GetBinContent(itb,ian+1);
	145	if(cont>fThreshold){
	146	tzero+=cont*float(itb);
	147	intCont+=cont;
	148	}
	149	}
	150	}
	151	if(intCont>0) fTbZero=tzero/intCont;
	152	}
	153	//______________________________________________________________________
	154	void AliITSOnlineSDDInjectors::FitDriftVelocityVsAnode(){
	155	const Int_t nn=fPolOrder+1;
	156	Float_t *mat = new Float_t[nn];
	157	for(Int_t i=0; i < nn; i++) mat[i] = new Float_t[nn];
	158	Float_t *vect = new Float_t[nn];
	159	for(Int_t k1=0;k1<nn;k1++){
	160	vect[k1]=0;
	161	for(Int_t k2=0;k2<nn;k2++){
	162	mat[k1][k2]=0;
	163	for(Int_t n=0; n<kNInjectors;n++){
	164	Float_t x=(Float_t)GetAnodeNumber(n);
	165	if(fDriftVel[n]>0) mat[k1][k2]+=TMath::Power(x,k1+k2)/TMath::Power(fSigmaDriftVel[n],2);
	166	}
	167	}
	168	}
	169	for(Int_t k1=0;k1<nn;k1++){
	170	for(Int_t n=0; n<kNInjectors;n++){
	171	Float_t x=(Float_t)GetAnodeNumber(n);
	172	if(fDriftVel[n]>0) vect[k1]+=fDriftVel[n]*TMath::Power(x,k1)/TMath::Power(fSigmaDriftVel[n],2);
	173	}
	174	}
	175	Int_t *iPivot = new Int_t[nn];
	176	Int_t *indxR = new Int_t[nn];
	177	Int_t *indxC = new Int_t[nn];
	178	for(Int_t i=0;i<nn;i++) iPivot[i]=0;
	179	Int_t iCol=-1,iRow=-1;
	180	for(Int_t i=0;i<nn;i++){
	181	Float_t big=0.;
	182	for(Int_t j=0;j<nn;j++){
	183	if(iPivot[j]!=1){
	184	for(Int_t k=0;k<nn;k++){
	185	if(iPivot[k]==0){
	186	if(TMath::Abs(mat[j][k])>=big){
	187	big=TMath::Abs(mat[j][k]);
	188	iRow=j;
	189	iCol=k;
	190	}
	191	}
	192	}
	193	}
	194	}
	195	iPivot[iCol]++;
	196	Float_t aux;
	197	if(iRow!=iCol){
	198	for(Int_t l=0;l<nn;l++){
	199	aux=mat[iRow][l];
	200	mat[iRow][l]=mat[iCol][l];
	201	mat[iCol][l]=aux;
	202	}
	203	aux=vect[iRow];
	204	vect[iRow]=vect[iCol];
205	vect[iCol]=aux;
206	}
207	indxR[i]=iRow;
208	indxC[i]=iCol;
209	if(mat[iCol][iCol]==0) break;
210	Float_t pivinv=1./mat[iCol][iCol];
211	mat[iCol][iCol]=1;
212	for(Int_t l=0;l<nn;l++) mat[iCol][l]*=pivinv;
213	vect[iCol]*=pivinv;
214	for(Int_t m=0;m<nn;m++){
215	if(m!=iCol){
216	aux=mat[m][iCol];
217	mat[m][iCol]=0;
218	for(Int_t n=0;n<nn;n++) mat[m][n]-=mat[iCol][n]*aux;
219	vect[m]-=vect[iCol]*aux;
220	}
221	}
222	}
223	delete [] iPivot;
224	delete [] indxR;
225	delete [] indxC;
226
227	if(fParam) delete [] fParam;
228	fParam=new Float_t[nn];
229	for(Int_t i=0; i<nn;i++)fParam[i]=vect[i];
230
231	for(Int_t i=0; i < nn; i++) delete [] mat[i];
232	delete [] mat;
233	delete [] vect;
234	}
235	//______________________________________________________________________
236	void AliITSOnlineSDDInjectors::CalcDriftVelocity(Int_t jlin){
237	//
238	Float_t sumY=0,sumX=0,sumXX=0,sumYY=0.,sumXY=0,sumWEI=0.;
239	Int_t npt=0;
240	Float_t y[3],ey[3];
241	Float_t tzero=0,erry=0;
242	for(Int_t i=0;i<3;i++){
243	y[i]=fCentroid[jlin][i];
244	ey[i]=fRMSCentroid[jlin][i];
245	}
246	for(Int_t i=0;i<3;i++){
247	if(fGoodInj[jlin][i]){
248	sumY+=y[i]/ey[i]/ey[i];
249	sumX+=fPosition[i]/ey[i]/ey[i];
250	sumXX+=fPosition[i]*fPosition[i]/ey[i]/ey[i];
251	sumYY+=y[i]*y[i]/ey[i]/ey[i];
252	sumXY+=fPosition[i]*y[i]/ey[i]/ey[i];
253	sumWEI+=1./ey[i]/ey[i];
254	tzero=fTbZero/ey[i]/ey[i];
255	erry=ey[i];
256	npt++;
257	}
258	}
259	Float_t vel=0,evel=0;
260	if(npt>1){
261	Float_t slope=(sumWEIsumXY-sumYsumX)/(sumWEIsumXX-sumXsumX);
262	Float_t eslope=TMath::Sqrt(sumWEI/(sumWEIsumXX-sumXsumX));
263	vel=1./slope*10000./25.;// micron/ns
264	evel=eslope/slope/slope*10000./25.;// micron/ns
265	}
266	if(npt==1){
267	Float_t slope=(sumY-tzero)/sumX;
268	Float_t eslope=erry/sumX;
269	vel=1./slope*10000./25.;// micron/ns
270	evel=eslope/slope/slope*10000./25.;// micron/ns
271	}
272	if(vel>fMaxDriftVel\|\|vel<fMinDriftVel){
273	vel=0.;
274	evel=0.;
275	}
276	fDriftVel[jlin]=vel;
277	fSigmaDriftVel[jlin]=evel;
278	}
279	//______________________________________________________________________
beb262b4	280	Int_t AliITSOnlineSDDInjectors::GetAnodeNumber(Int_t iInjLine) const{
beb262b4	281	//
348f80b7	282	Int_t ian=-1;
	283	if(iInjLine>32) return ian;
	284	if(!fSide){
	285	ian=iInjLine*8;
	286	if(iInjLine==32) ian--;
	287	}else{
	288	ian=iInjLine*8-1;
	289	if(iInjLine==0) ian=0;
	290	}
	291	return ian;
	292	}
	293
	294	//______________________________________________________________________
	295	void AliITSOnlineSDDInjectors::FindGoodInjectors(){
	296	//
	297	for(Int_t iii=0;iii<kNInjectors;iii++){
	298	Int_t ian=GetAnodeNumber(iii);
	299	for(Int_t ninj=0;ninj<3;ninj++){
	300	for(Int_t jjj=fTbMin[ninj];jjj<fTbMax[ninj];jjj++){
	301	Float_t c1=fHisto->GetBinContent(jjj,ian+1);
	302	Float_t c2=fHisto->GetBinContent(jjj+1,ian+1);
	303	Float_t c3=fHisto->GetBinContent(jjj+2,ian+1);
	304	if(c1>fThreshold && c2>fThreshold && c3>fThreshold){
	305	fGoodInj[iii][ninj]=1;
	306	break;
	307	}
	308	}
	309	// for(Int_t jjj=fTbMin[ninj];jjj<fTbMax[ninj];jjj++){
	310	// Float_t c1=fHisto->GetBinContent(jjj,ian+1);
	311	// if(c1>=fgkSaturation){
	312	// fGoodInj[iii][ninj]=0;
	313	// break;
	314	// }
	315	// }
	316	}
	317	}
	318	}
	319	//______________________________________________________________________
	320	void AliITSOnlineSDDInjectors::FindCentroids(){
	321	//
	322	for(Int_t iii=0;iii<kNInjectors;iii++){
	323	Int_t ian=GetAnodeNumber(iii);
	324	for(Int_t ninj=0;ninj<3;ninj++){
	325	if(!fGoodInj[iii][ninj]) continue;
	326	Float_t maxcont=0;
	327	Int_t ilmax=-1;
	328	for(Int_t jjj=fTbMin[ninj];jjj<fTbMax[ninj];jjj++){
	329	Float_t cont=fHisto->GetBinContent(jjj,ian+1);
	330	if(cont>maxcont){
	331	maxcont=cont;
	332	ilmax=jjj;
	333	}
	334	}
	335	Float_t intCont=0;
	336	Int_t jjj=ilmax;
	337	while(1){
	338	Float_t cont=fHisto->GetBinContent(jjj,ian+1);
	339	if(cont<fThreshold) break;
	340	if(cont<fgkSaturation){
	341	fCentroid[iii][ninj]+=cont*(Float_t)jjj;
	342	fRMSCentroid[iii][ninj]+=cont*TMath::Power((Float_t)jjj,2);
	343	intCont+=cont;
	344	}
	345	jjj--;
346	}
347	jjj=ilmax+1;
348	while(1){
349	Float_t cont=fHisto->GetBinContent(jjj,ian+1);
350	if(cont<fThreshold) break;
351	if(cont<fgkSaturation){
352	fCentroid[iii][ninj]+=cont*float(jjj);
353	fRMSCentroid[iii][ninj]+=cont*TMath::Power((Float_t)jjj,2);
354	intCont+=cont;
355	}
356	jjj++;
357	}
358	if(intCont>0){
359	fCentroid[iii][ninj]/=intCont;
360	fRMSCentroid[iii][ninj]=TMath::Sqrt(fRMSCentroid[iii][ninj]/intCont-fCentroid[iii][ninj]*fCentroid[iii][ninj]);
361	}
362	else{
363	fCentroid[iii][ninj]=0.;
364	fRMSCentroid[iii][ninj]=0.;
365	fGoodInj[iii][ninj]=0;
366	}
367	}
368	}
369	}
370	//______________________________________________________________________
371	void AliITSOnlineSDDInjectors::PrintInjMap(){
372	//
373	for(Int_t iii=0;iii<kNInjectors;iii++){
374	printf("Line%d-Anode%d: %d %d %d\n",iii,GetAnodeNumber(iii),fGoodInj[iii][0],fGoodInj[iii][1],fGoodInj[iii][2]);
375	}
376	}
377	//______________________________________________________________________
378	void AliITSOnlineSDDInjectors::PrintCentroids(){
379	//
380	for(Int_t iii=0;iii<kNInjectors;iii++){
381	printf("Line%d-Anode%d: %f+-%f %f+-%f %f+-%f\n",iii,GetAnodeNumber(iii),fCentroid[iii][0],fRMSCentroid[iii][0],fCentroid[iii][1],fRMSCentroid[iii][1],fCentroid[iii][2],fRMSCentroid[iii][2]);
382	}
383	}
384	//______________________________________________________________________
e44f571c	385	void AliITSOnlineSDDInjectors::WriteToASCII(){
348f80b7	386	//
	387	Char_t outfilnam[100];
	388	sprintf(outfilnam,"SDDinj_mod%03d_sid%d.data",fModuleId,fSide);
	389	FILE* outf=fopen(outfilnam,"w");
	390	for(Int_t ic=0;ic<fPolOrder+1;ic++){
	391	fprintf(outf,"%G ",fParam[ic]);
	392	}
	393	fprintf(outf,"\n");
	394	fclose(outf);
	395	}