[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>

/* $Id$ */

///////////////////////////////////////////////////////////////////
//                                                               //
// 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;
      }
      if(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(Int_t evNumb, UInt_t timeStamp, Int_t optAppend){
  //
  Char_t outfilnam[100];
  sprintf(outfilnam,"SDDinj_mod%03d_sid%d.data",fModuleId,fSide);
  FILE* outf;
  if(optAppend==0) outf=fopen(outfilnam,"w");
  else outf=fopen(outfilnam,"a");
  fprintf(outf,"%d   %d   ",evNumb,timeStamp);
  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
4c82df4c	20	/* $Id$ */
4c82df4c	21
348f80b7	22	///////////////////////////////////////////////////////////////////
	23	// //
	24	// Implementation of the class used for SDD injector analysis //
	25	// Origin: F.Prino, Torino, prino@to.infn.it //
	26	// //
	27	///////////////////////////////////////////////////////////////////
	28
	29	ClassImp(AliITSOnlineSDDInjectors)
	30
	31	const Float_t AliITSOnlineSDDInjectors::fgkSaturation = 1008.;
	32	const Float_t AliITSOnlineSDDInjectors::fgkJitterTB = 8.;
	33
	34	//______________________________________________________________________
	35	AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors():AliITSOnlineSDD(),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftVel(0.),fMaxDriftVel(0.),fThreshold(0.)
	36	{
	37	// default constructor
	38	SetMinDriftVel();
	39	SetMaxDriftVel();
	40	SetRangeLine1();
	41	SetRangeLine2();
	42	SetRangeLine3();
	43	SetPositions();
	44	SetPolOrder();
	45	SetThreshold();
	46	}
	47	//______________________________________________________________________
	48	AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors(Int_t mod, Int_t sid):AliITSOnlineSDD(mod,sid),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftVel(0.),fMaxDriftVel(0.),fThreshold(0.)
beb262b4	49	{
beb262b4	50	// standard constructor
348f80b7	51	SetMinDriftVel();
	52	SetMaxDriftVel();
	53	SetRangeLine1();
	54	SetRangeLine2();
	55	SetRangeLine3();
	56	SetPositions();
	57	SetPolOrder();
	58	SetThreshold();
	59	}
	60	//______________________________________________________________________
	61	AliITSOnlineSDDInjectors::~AliITSOnlineSDDInjectors(){
	62	// Destructor
	63	if(fHisto) delete fHisto;
	64	if(fParam) delete [] fParam;
	65	}
	66	//______________________________________________________________________
	67	void AliITSOnlineSDDInjectors::SetPositions(){
	68	//
	69	Float_t kLinFromCenterUm[3]={31860.,17460.,660.};
	70	Float_t kAnodeFromCenterUm=35085;
	71	for(Int_t i=0;i<3;i++){
	72	fPosition[i]=kAnodeFromCenterUm-kLinFromCenterUm[i];
	73	fPosition[i]/=10000.; // from microns to cm
	74	}
	75	}
	76	//______________________________________________________________________
	77	void AliITSOnlineSDDInjectors::Reset(){
beb262b4	78	//
348f80b7	79	for(Int_t i=0;i<kNInjectors;i++){
	80	fDriftVel[i]=0.;
	81	fSigmaDriftVel[i]=0.;
	82	}
	83	for(Int_t i=0;i<kNInjectors;i++){
	84	for(Int_t j=0;j<3;j++){
	85	fGoodInj[i][j]=0;
	86	fCentroid[i][j]=0.;
	87	fRMSCentroid[i][j]=0.;
	88	}
	89	}
	90	}
	91	//______________________________________________________________________
	92	void AliITSOnlineSDDInjectors::AnalyzeEvent(TH2F* his){
	93	//
	94	Reset();
	95	fHisto=his;
	96	FindGoodInjectors();
	97	FindCentroids();
	98	CalcTimeBinZero();
	99	for(Int_t j=0;j<kNInjectors;j++) CalcDriftVelocity(j);
	100	FitDriftVelocityVsAnode();
	101	}
	102	//______________________________________________________________________
	103	TGraphErrors* AliITSOnlineSDDInjectors::GetLineGraph(Int_t jlin){
	104	//
	105	Float_t x[4],y[4],ex[4],ey[4];
	106	x[0]=0.;
	107	ex[0]=0.;
	108	y[0]=fTbZero;
	109	ey[0]=0.;
	110	for(Int_t i=0;i<3;i++){
	111	x[i+1]=fPosition[i];
	112	ex[i+1]=0.;
	113	y[i+1]=fCentroid[jlin][i];
	114	ey[i+1]=fRMSCentroid[jlin][i];
	115	}
	116	TGraphErrors *g=new TGraphErrors(4,x,y,ex,ey);
	117	return g;
	118	}
	119	//______________________________________________________________________
	120	Float_t AliITSOnlineSDDInjectors::GetDriftCoordinate(Float_t cAnode, Float_t cTimeBin){
beb262b4	121	//
348f80b7	122	Float_t vel=0;
	123	for(Int_t i=0;i<=fPolOrder;i++) vel+=fParam[i]*TMath::Power(cAnode,(Float_t)i);
	124	return vel(cTimeBin-(fTbZero-fgkJitterTB))25/1000.;
	125	}
	126	//______________________________________________________________________
beb262b4	127	TGraphErrors* AliITSOnlineSDDInjectors::GetDriftVelocityGraph() const{
348f80b7	128	//
348f80b7	129	Int_t ipt=0;
	130	TGraphErrors *g=new TGraphErrors(0);
	131	for(Int_t i=0;i<kNInjectors;i++){
	132	if(fDriftVel[i]>0){
	133	g->SetPoint(ipt,GetAnodeNumber(i),fDriftVel[i]);
	134	g->SetPointError(ipt,0,fSigmaDriftVel[i]);
	135	ipt++;
	136	}
	137	}
	138	return g;
	139	}
	140	//______________________________________________________________________
	141	void AliITSOnlineSDDInjectors::CalcTimeBinZero(){
beb262b4	142	//
348f80b7	143	Float_t tzero=0.,intCont=0.;
	144	for(Int_t ian=0;ian<fgkNAnodes;ian++){
	145	for(Int_t itb=1;itb<fTbMin[0];itb++){
	146	Float_t cont=fHisto->GetBinContent(itb,ian+1);
	147	if(cont>fThreshold){
	148	tzero+=cont*float(itb);
	149	intCont+=cont;
	150	}
	151	}
	152	}
	153	if(intCont>0) fTbZero=tzero/intCont;
	154	}
	155	//______________________________________________________________________
	156	void AliITSOnlineSDDInjectors::FitDriftVelocityVsAnode(){
	157	const Int_t nn=fPolOrder+1;
	158	Float_t *mat = new Float_t[nn];
	159	for(Int_t i=0; i < nn; i++) mat[i] = new Float_t[nn];
	160	Float_t *vect = new Float_t[nn];
	161	for(Int_t k1=0;k1<nn;k1++){
	162	vect[k1]=0;
	163	for(Int_t k2=0;k2<nn;k2++){
	164	mat[k1][k2]=0;
	165	for(Int_t n=0; n<kNInjectors;n++){
	166	Float_t x=(Float_t)GetAnodeNumber(n);
	167	if(fDriftVel[n]>0) mat[k1][k2]+=TMath::Power(x,k1+k2)/TMath::Power(fSigmaDriftVel[n],2);
	168	}
	169	}
	170	}
	171	for(Int_t k1=0;k1<nn;k1++){
	172	for(Int_t n=0; n<kNInjectors;n++){
	173	Float_t x=(Float_t)GetAnodeNumber(n);
	174	if(fDriftVel[n]>0) vect[k1]+=fDriftVel[n]*TMath::Power(x,k1)/TMath::Power(fSigmaDriftVel[n],2);
	175	}
	176	}
	177	Int_t *iPivot = new Int_t[nn];
	178	Int_t *indxR = new Int_t[nn];
	179	Int_t *indxC = new Int_t[nn];
	180	for(Int_t i=0;i<nn;i++) iPivot[i]=0;
	181	Int_t iCol=-1,iRow=-1;
	182	for(Int_t i=0;i<nn;i++){
	183	Float_t big=0.;
	184	for(Int_t j=0;j<nn;j++){
	185	if(iPivot[j]!=1){
	186	for(Int_t k=0;k<nn;k++){
	187	if(iPivot[k]==0){
	188	if(TMath::Abs(mat[j][k])>=big){
	189	big=TMath::Abs(mat[j][k]);
	190	iRow=j;
	191	iCol=k;
	192	}
	193	}
	194	}
	195	}
	196	}
	197	iPivot[iCol]++;
	198	Float_t aux;
	199	if(iRow!=iCol){
	200	for(Int_t l=0;l<nn;l++){
	201	aux=mat[iRow][l];
	202	mat[iRow][l]=mat[iCol][l];
	203	mat[iCol][l]=aux;
	204	}
	205	aux=vect[iRow];
	206	vect[iRow]=vect[iCol];
207	vect[iCol]=aux;
208	}
209	indxR[i]=iRow;
210	indxC[i]=iCol;
211	if(mat[iCol][iCol]==0) break;
212	Float_t pivinv=1./mat[iCol][iCol];
213	mat[iCol][iCol]=1;
214	for(Int_t l=0;l<nn;l++) mat[iCol][l]*=pivinv;
215	vect[iCol]*=pivinv;
216	for(Int_t m=0;m<nn;m++){
217	if(m!=iCol){
218	aux=mat[m][iCol];
219	mat[m][iCol]=0;
220	for(Int_t n=0;n<nn;n++) mat[m][n]-=mat[iCol][n]*aux;
221	vect[m]-=vect[iCol]*aux;
222	}
223	}
224	}
225	delete [] iPivot;
226	delete [] indxR;
227	delete [] indxC;
228
229	if(fParam) delete [] fParam;
230	fParam=new Float_t[nn];
231	for(Int_t i=0; i<nn;i++)fParam[i]=vect[i];
232
233	for(Int_t i=0; i < nn; i++) delete [] mat[i];
234	delete [] mat;
235	delete [] vect;
236	}
237	//______________________________________________________________________
238	void AliITSOnlineSDDInjectors::CalcDriftVelocity(Int_t jlin){
239	//
240	Float_t sumY=0,sumX=0,sumXX=0,sumYY=0.,sumXY=0,sumWEI=0.;
241	Int_t npt=0;
242	Float_t y[3],ey[3];
243	Float_t tzero=0,erry=0;
244	for(Int_t i=0;i<3;i++){
245	y[i]=fCentroid[jlin][i];
246	ey[i]=fRMSCentroid[jlin][i];
247	}
248	for(Int_t i=0;i<3;i++){
249	if(fGoodInj[jlin][i]){
250	sumY+=y[i]/ey[i]/ey[i];
251	sumX+=fPosition[i]/ey[i]/ey[i];
252	sumXX+=fPosition[i]*fPosition[i]/ey[i]/ey[i];
253	sumYY+=y[i]*y[i]/ey[i]/ey[i];
254	sumXY+=fPosition[i]*y[i]/ey[i]/ey[i];
255	sumWEI+=1./ey[i]/ey[i];
256	tzero=fTbZero/ey[i]/ey[i];
257	erry=ey[i];
258	npt++;
259	}
260	}
261	Float_t vel=0,evel=0;
262	if(npt>1){
263	Float_t slope=(sumWEIsumXY-sumYsumX)/(sumWEIsumXX-sumXsumX);
264	Float_t eslope=TMath::Sqrt(sumWEI/(sumWEIsumXX-sumXsumX));
265	vel=1./slope*10000./25.;// micron/ns
266	evel=eslope/slope/slope*10000./25.;// micron/ns
267	}
268	if(npt==1){
269	Float_t slope=(sumY-tzero)/sumX;
270	Float_t eslope=erry/sumX;
271	vel=1./slope*10000./25.;// micron/ns
272	evel=eslope/slope/slope*10000./25.;// micron/ns
273	}
274	if(vel>fMaxDriftVel\|\|vel<fMinDriftVel){
275	vel=0.;
276	evel=0.;
277	}
278	fDriftVel[jlin]=vel;
279	fSigmaDriftVel[jlin]=evel;
280	}
281	//______________________________________________________________________
beb262b4	282	Int_t AliITSOnlineSDDInjectors::GetAnodeNumber(Int_t iInjLine) const{
beb262b4	283	//
348f80b7	284	Int_t ian=-1;
	285	if(iInjLine>32) return ian;
	286	if(!fSide){
	287	ian=iInjLine*8;
	288	if(iInjLine==32) ian--;
	289	}else{
	290	ian=iInjLine*8-1;
	291	if(iInjLine==0) ian=0;
	292	}
	293	return ian;
	294	}
	295
	296	//______________________________________________________________________
	297	void AliITSOnlineSDDInjectors::FindGoodInjectors(){
	298	//
	299	for(Int_t iii=0;iii<kNInjectors;iii++){
	300	Int_t ian=GetAnodeNumber(iii);
	301	for(Int_t ninj=0;ninj<3;ninj++){
	302	for(Int_t jjj=fTbMin[ninj];jjj<fTbMax[ninj];jjj++){
	303	Float_t c1=fHisto->GetBinContent(jjj,ian+1);
	304	Float_t c2=fHisto->GetBinContent(jjj+1,ian+1);
	305	Float_t c3=fHisto->GetBinContent(jjj+2,ian+1);
	306	if(c1>fThreshold && c2>fThreshold && c3>fThreshold){
	307	fGoodInj[iii][ninj]=1;
	308	break;
	309	}
	310	}
	311	// for(Int_t jjj=fTbMin[ninj];jjj<fTbMax[ninj];jjj++){
	312	// Float_t c1=fHisto->GetBinContent(jjj,ian+1);
	313	// if(c1>=fgkSaturation){
	314	// fGoodInj[iii][ninj]=0;
	315	// break;
	316	// }
	317	// }
	318	}
	319	}
	320	}
	321	//______________________________________________________________________
	322	void AliITSOnlineSDDInjectors::FindCentroids(){
	323	//
	324	for(Int_t iii=0;iii<kNInjectors;iii++){
	325	Int_t ian=GetAnodeNumber(iii);
	326	for(Int_t ninj=0;ninj<3;ninj++){
	327	if(!fGoodInj[iii][ninj]) continue;
	328	Float_t maxcont=0;
	329	Int_t ilmax=-1;
	330	for(Int_t jjj=fTbMin[ninj];jjj<fTbMax[ninj];jjj++){
	331	Float_t cont=fHisto->GetBinContent(jjj,ian+1);
	332	if(cont>maxcont){
	333	maxcont=cont;
	334	ilmax=jjj;
	335	}
	336	}
	337	Float_t intCont=0;
	338	Int_t jjj=ilmax;
	339	while(1){
	340	Float_t cont=fHisto->GetBinContent(jjj,ian+1);
	341	if(cont<fThreshold) break;
	342	if(cont<fgkSaturation){
	343	fCentroid[iii][ninj]+=cont*(Float_t)jjj;
	344	fRMSCentroid[iii][ninj]+=cont*TMath::Power((Float_t)jjj,2);
	345	intCont+=cont;
	346	}
	347	jjj--;
348	}
349	jjj=ilmax+1;
350	while(1){
351	Float_t cont=fHisto->GetBinContent(jjj,ian+1);
352	if(cont<fThreshold) break;
353	if(cont<fgkSaturation){
354	fCentroid[iii][ninj]+=cont*float(jjj);
355	fRMSCentroid[iii][ninj]+=cont*TMath::Power((Float_t)jjj,2);
356	intCont+=cont;
357	}
358	jjj++;
359	}
360	if(intCont>0){
361	fCentroid[iii][ninj]/=intCont;
362	fRMSCentroid[iii][ninj]=TMath::Sqrt(fRMSCentroid[iii][ninj]/intCont-fCentroid[iii][ninj]*fCentroid[iii][ninj]);
363	}
364	else{
365	fCentroid[iii][ninj]=0.;
366	fRMSCentroid[iii][ninj]=0.;
367	fGoodInj[iii][ninj]=0;
368	}
4c82df4c	369	if(fRMSCentroid[iii][ninj]==0) fGoodInj[iii][ninj]=0;
348f80b7	370	}
	371	}
	372	}
	373	//______________________________________________________________________
	374	void AliITSOnlineSDDInjectors::PrintInjMap(){
	375	//
	376	for(Int_t iii=0;iii<kNInjectors;iii++){
	377	printf("Line%d-Anode%d: %d %d %d\n",iii,GetAnodeNumber(iii),fGoodInj[iii][0],fGoodInj[iii][1],fGoodInj[iii][2]);
	378	}
	379	}
	380	//______________________________________________________________________
	381	void AliITSOnlineSDDInjectors::PrintCentroids(){
	382	//
	383	for(Int_t iii=0;iii<kNInjectors;iii++){
	384	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]);
	385	}
	386	}
	387	//______________________________________________________________________
4c82df4c	388	void AliITSOnlineSDDInjectors::WriteToASCII(Int_t evNumb, UInt_t timeStamp, Int_t optAppend){
348f80b7	389	//
	390	Char_t outfilnam[100];
	391	sprintf(outfilnam,"SDDinj_mod%03d_sid%d.data",fModuleId,fSide);
4c82df4c	392	FILE* outf;
	393	if(optAppend==0) outf=fopen(outfilnam,"w");
	394	else outf=fopen(outfilnam,"a");
	395	fprintf(outf,"%d %d ",evNumb,timeStamp);
348f80b7	396	for(Int_t ic=0;ic<fPolOrder+1;ic++){
	397	fprintf(outf,"%G ",fParam[ic]);
	398	}
	399	fprintf(outf,"\n");
	400	fclose(outf);
	401	}