[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.;

//______________________________________________________________________
AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors():AliITSOnlineSDD(),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftVel(0.),fMaxDriftVel(0.),fThreshold(0.),fTimeDiffTB()
{
  // default constructor
  SetMinDriftVel();
  SetMaxDriftVel();
  SetRangeLine1();
  SetRangeLine2();
  SetRangeLine3();
  SetPositions();
  SetPolOrder();
  SetThreshold();
  SetTimeDiffTB();
}
//______________________________________________________________________
AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors(Int_t mod, Int_t sid):AliITSOnlineSDD(mod,sid),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftVel(0.),fMaxDriftVel(0.),fThreshold(0.),fTimeDiffTB()
{ 
// standard constructor
  SetMinDriftVel();
  SetMaxDriftVel();
  SetRangeLine1();
  SetRangeLine2();
  SetRangeLine3();
  SetPositions();
  SetPolOrder();
  SetThreshold();
  SetTimeDiffTB();
}
//______________________________________________________________________
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) const{
  // 
  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-fTimeDiffTB))*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(){
  // fits the anode dependence of drift velocity with a polynomial
  const Int_t kNn=fPolOrder+1;
  Float_t **mat = new Float_t*[kNn];
  for(Int_t i=0; i < kNn; i++) mat[i] = new Float_t[kNn];
  Float_t *vect = new Float_t[kNn];
  for(Int_t k1=0;k1<kNn;k1++){
    vect[k1]=0;
    for(Int_t k2=0;k2<kNn;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<kNn;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[kNn];
  Int_t *indxR = new Int_t[kNn];
  Int_t *indxC = new Int_t[kNn];
  for(Int_t i=0;i<kNn;i++) iPivot[i]=0;
  Int_t iCol=-1,iRow=-1;
  for(Int_t i=0;i<kNn;i++){
    Float_t big=0.;
    for(Int_t j=0;j<kNn;j++){
      if(iPivot[j]!=1){
	for(Int_t k=0;k<kNn;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<kNn;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<kNn;l++) mat[iCol][l]*=pivinv;
    vect[iCol]*=pivinv;
    for(Int_t m=0;m<kNn;m++){
      if(m!=iCol){
	aux=mat[m][iCol];
	mat[m][iCol]=0;
	for(Int_t n=0;n<kNn;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[kNn];
  for(Int_t i=0; i<kNn;i++)fParam[i]=vect[i];

  for(Int_t i=0; i < kNn; 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");
    fprintf(outf,"%d\n",fPolOrder);
  }
  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.;
348f80b7	32
348f80b7	33	//______________________________________________________________________
4ff6aa93	34	AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors():AliITSOnlineSDD(),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftVel(0.),fMaxDriftVel(0.),fThreshold(0.),fTimeDiffTB()
348f80b7	35	{
	36	// default constructor
	37	SetMinDriftVel();
	38	SetMaxDriftVel();
	39	SetRangeLine1();
	40	SetRangeLine2();
	41	SetRangeLine3();
	42	SetPositions();
	43	SetPolOrder();
	44	SetThreshold();
4ff6aa93	45	SetTimeDiffTB();
348f80b7	46	}
348f80b7	47	//______________________________________________________________________
4ff6aa93	48	AliITSOnlineSDDInjectors::AliITSOnlineSDDInjectors(Int_t mod, Int_t sid):AliITSOnlineSDD(mod,sid),fHisto(),fTbZero(0.),fParam(),fPolOrder(0),fMinDriftVel(0.),fMaxDriftVel(0.),fThreshold(0.),fTimeDiffTB()
beb262b4	49	{
beb262b4	50	// standard constructor
348f80b7	51	SetMinDriftVel();
	52	SetMaxDriftVel();
	53	SetRangeLine1();
	54	SetRangeLine2();
	55	SetRangeLine3();
	56	SetPositions();
	57	SetPolOrder();
	58	SetThreshold();
4ff6aa93	59	SetTimeDiffTB();
348f80b7	60	}
	61	//______________________________________________________________________
	62	AliITSOnlineSDDInjectors::~AliITSOnlineSDDInjectors(){
	63	// Destructor
	64	if(fHisto) delete fHisto;
	65	if(fParam) delete [] fParam;
	66	}
	67	//______________________________________________________________________
	68	void AliITSOnlineSDDInjectors::SetPositions(){
	69	//
	70	Float_t kLinFromCenterUm[3]={31860.,17460.,660.};
	71	Float_t kAnodeFromCenterUm=35085;
	72	for(Int_t i=0;i<3;i++){
	73	fPosition[i]=kAnodeFromCenterUm-kLinFromCenterUm[i];
	74	fPosition[i]/=10000.; // from microns to cm
	75	}
	76	}
	77	//______________________________________________________________________
	78	void AliITSOnlineSDDInjectors::Reset(){
beb262b4	79	//
348f80b7	80	for(Int_t i=0;i<kNInjectors;i++){
	81	fDriftVel[i]=0.;
	82	fSigmaDriftVel[i]=0.;
	83	}
	84	for(Int_t i=0;i<kNInjectors;i++){
	85	for(Int_t j=0;j<3;j++){
	86	fGoodInj[i][j]=0;
	87	fCentroid[i][j]=0.;
	88	fRMSCentroid[i][j]=0.;
	89	}
	90	}
	91	}
	92	//______________________________________________________________________
	93	void AliITSOnlineSDDInjectors::AnalyzeEvent(TH2F* his){
	94	//
	95	Reset();
	96	fHisto=his;
	97	FindGoodInjectors();
	98	FindCentroids();
	99	CalcTimeBinZero();
	100	for(Int_t j=0;j<kNInjectors;j++) CalcDriftVelocity(j);
	101	FitDriftVelocityVsAnode();
	102	}
	103	//______________________________________________________________________
4ff6aa93	104	TGraphErrors* AliITSOnlineSDDInjectors::GetLineGraph(Int_t jlin) const{
348f80b7	105	//
	106	Float_t x[4],y[4],ex[4],ey[4];
	107	x[0]=0.;
	108	ex[0]=0.;
	109	y[0]=fTbZero;
	110	ey[0]=0.;
	111	for(Int_t i=0;i<3;i++){
	112	x[i+1]=fPosition[i];
	113	ex[i+1]=0.;
	114	y[i+1]=fCentroid[jlin][i];
	115	ey[i+1]=fRMSCentroid[jlin][i];
	116	}
	117	TGraphErrors *g=new TGraphErrors(4,x,y,ex,ey);
	118	return g;
	119	}
	120	//______________________________________________________________________
	121	Float_t AliITSOnlineSDDInjectors::GetDriftCoordinate(Float_t cAnode, Float_t cTimeBin){
beb262b4	122	//
348f80b7	123	Float_t vel=0;
348f80b7	124	for(Int_t i=0;i<=fPolOrder;i++) vel+=fParam[i]*TMath::Power(cAnode,(Float_t)i);
4ff6aa93	125	return vel(cTimeBin-(fTbZero-fTimeDiffTB))25/1000.;
348f80b7	126	}
348f80b7	127	//______________________________________________________________________
beb262b4	128	TGraphErrors* AliITSOnlineSDDInjectors::GetDriftVelocityGraph() const{
348f80b7	129	//
348f80b7	130	Int_t ipt=0;
	131	TGraphErrors *g=new TGraphErrors(0);
	132	for(Int_t i=0;i<kNInjectors;i++){
	133	if(fDriftVel[i]>0){
	134	g->SetPoint(ipt,GetAnodeNumber(i),fDriftVel[i]);
	135	g->SetPointError(ipt,0,fSigmaDriftVel[i]);
	136	ipt++;
	137	}
	138	}
	139	return g;
	140	}
	141	//______________________________________________________________________
	142	void AliITSOnlineSDDInjectors::CalcTimeBinZero(){
beb262b4	143	//
348f80b7	144	Float_t tzero=0.,intCont=0.;
	145	for(Int_t ian=0;ian<fgkNAnodes;ian++){
	146	for(Int_t itb=1;itb<fTbMin[0];itb++){
	147	Float_t cont=fHisto->GetBinContent(itb,ian+1);
	148	if(cont>fThreshold){
	149	tzero+=cont*float(itb);
	150	intCont+=cont;
	151	}
	152	}
	153	}
	154	if(intCont>0) fTbZero=tzero/intCont;
	155	}
	156	//______________________________________________________________________
	157	void AliITSOnlineSDDInjectors::FitDriftVelocityVsAnode(){
4ff6aa93	158	// fits the anode dependence of drift velocity with a polynomial
	159	const Int_t kNn=fPolOrder+1;
	160	Float_t *mat = new Float_t[kNn];
	161	for(Int_t i=0; i < kNn; i++) mat[i] = new Float_t[kNn];
	162	Float_t *vect = new Float_t[kNn];
	163	for(Int_t k1=0;k1<kNn;k1++){
348f80b7	164	vect[k1]=0;
4ff6aa93	165	for(Int_t k2=0;k2<kNn;k2++){
348f80b7	166	mat[k1][k2]=0;
	167	for(Int_t n=0; n<kNInjectors;n++){
	168	Float_t x=(Float_t)GetAnodeNumber(n);
	169	if(fDriftVel[n]>0) mat[k1][k2]+=TMath::Power(x,k1+k2)/TMath::Power(fSigmaDriftVel[n],2);
	170	}
	171	}
	172	}
4ff6aa93	173	for(Int_t k1=0;k1<kNn;k1++){
348f80b7	174	for(Int_t n=0; n<kNInjectors;n++){
	175	Float_t x=(Float_t)GetAnodeNumber(n);
	176	if(fDriftVel[n]>0) vect[k1]+=fDriftVel[n]*TMath::Power(x,k1)/TMath::Power(fSigmaDriftVel[n],2);
	177	}
	178	}
4ff6aa93	179	Int_t *iPivot = new Int_t[kNn];
	180	Int_t *indxR = new Int_t[kNn];
	181	Int_t *indxC = new Int_t[kNn];
	182	for(Int_t i=0;i<kNn;i++) iPivot[i]=0;
348f80b7	183	Int_t iCol=-1,iRow=-1;
4ff6aa93	184	for(Int_t i=0;i<kNn;i++){
348f80b7	185	Float_t big=0.;
4ff6aa93	186	for(Int_t j=0;j<kNn;j++){
348f80b7	187	if(iPivot[j]!=1){
4ff6aa93	188	for(Int_t k=0;k<kNn;k++){
348f80b7	189	if(iPivot[k]==0){
	190	if(TMath::Abs(mat[j][k])>=big){
	191	big=TMath::Abs(mat[j][k]);
	192	iRow=j;
	193	iCol=k;
	194	}
	195	}
	196	}
	197	}
	198	}
	199	iPivot[iCol]++;
	200	Float_t aux;
	201	if(iRow!=iCol){
4ff6aa93	202	for(Int_t l=0;l<kNn;l++){
348f80b7	203	aux=mat[iRow][l];
	204	mat[iRow][l]=mat[iCol][l];
	205	mat[iCol][l]=aux;
	206	}
	207	aux=vect[iRow];
	208	vect[iRow]=vect[iCol];
	209	vect[iCol]=aux;
	210	}
	211	indxR[i]=iRow;
	212	indxC[i]=iCol;
	213	if(mat[iCol][iCol]==0) break;
	214	Float_t pivinv=1./mat[iCol][iCol];
	215	mat[iCol][iCol]=1;
4ff6aa93	216	for(Int_t l=0;l<kNn;l++) mat[iCol][l]*=pivinv;
348f80b7	217	vect[iCol]*=pivinv;
4ff6aa93	218	for(Int_t m=0;m<kNn;m++){
348f80b7	219	if(m!=iCol){
	220	aux=mat[m][iCol];
	221	mat[m][iCol]=0;
4ff6aa93	222	for(Int_t n=0;n<kNn;n++) mat[m][n]-=mat[iCol][n]*aux;
348f80b7	223	vect[m]-=vect[iCol]*aux;
	224	}
	225	}
	226	}
	227	delete [] iPivot;
	228	delete [] indxR;
	229	delete [] indxC;
	230
	231	if(fParam) delete [] fParam;
4ff6aa93	232	fParam=new Float_t[kNn];
4ff6aa93	233	for(Int_t i=0; i<kNn;i++)fParam[i]=vect[i];
348f80b7	234
4ff6aa93	235	for(Int_t i=0; i < kNn; i++) delete [] mat[i];
348f80b7	236	delete [] mat;
	237	delete [] vect;
	238	}
	239	//______________________________________________________________________
	240	void AliITSOnlineSDDInjectors::CalcDriftVelocity(Int_t jlin){
	241	//
	242	Float_t sumY=0,sumX=0,sumXX=0,sumYY=0.,sumXY=0,sumWEI=0.;
	243	Int_t npt=0;
	244	Float_t y[3],ey[3];
	245	Float_t tzero=0,erry=0;
	246	for(Int_t i=0;i<3;i++){
	247	y[i]=fCentroid[jlin][i];
	248	ey[i]=fRMSCentroid[jlin][i];
	249	}
	250	for(Int_t i=0;i<3;i++){
	251	if(fGoodInj[jlin][i]){
	252	sumY+=y[i]/ey[i]/ey[i];
	253	sumX+=fPosition[i]/ey[i]/ey[i];
	254	sumXX+=fPosition[i]*fPosition[i]/ey[i]/ey[i];
	255	sumYY+=y[i]*y[i]/ey[i]/ey[i];
	256	sumXY+=fPosition[i]*y[i]/ey[i]/ey[i];
	257	sumWEI+=1./ey[i]/ey[i];
	258	tzero=fTbZero/ey[i]/ey[i];
	259	erry=ey[i];
	260	npt++;
	261	}
	262	}
	263	Float_t vel=0,evel=0;
	264	if(npt>1){
	265	Float_t slope=(sumWEIsumXY-sumYsumX)/(sumWEIsumXX-sumXsumX);
	266	Float_t eslope=TMath::Sqrt(sumWEI/(sumWEIsumXX-sumXsumX));
	267	vel=1./slope*10000./25.;// micron/ns
	268	evel=eslope/slope/slope*10000./25.;// micron/ns
	269	}
	270	if(npt==1){
	271	Float_t slope=(sumY-tzero)/sumX;
	272	Float_t eslope=erry/sumX;
	273	vel=1./slope*10000./25.;// micron/ns
	274	evel=eslope/slope/slope*10000./25.;// micron/ns
	275	}
	276	if(vel>fMaxDriftVel\|\|vel<fMinDriftVel){
	277	vel=0.;
	278	evel=0.;
	279	}
	280	fDriftVel[jlin]=vel;
	281	fSigmaDriftVel[jlin]=evel;
	282	}
	283	//______________________________________________________________________
beb262b4	284	Int_t AliITSOnlineSDDInjectors::GetAnodeNumber(Int_t iInjLine) const{
beb262b4	285	//
348f80b7	286	Int_t ian=-1;
	287	if(iInjLine>32) return ian;
	288	if(!fSide){
	289	ian=iInjLine*8;
	290	if(iInjLine==32) ian--;
	291	}else{
	292	ian=iInjLine*8-1;
	293	if(iInjLine==0) ian=0;
	294	}
	295	return ian;
	296	}
	297
	298	//______________________________________________________________________
	299	void AliITSOnlineSDDInjectors::FindGoodInjectors(){
	300	//
	301	for(Int_t iii=0;iii<kNInjectors;iii++){
	302	Int_t ian=GetAnodeNumber(iii);
	303	for(Int_t ninj=0;ninj<3;ninj++){
	304	for(Int_t jjj=fTbMin[ninj];jjj<fTbMax[ninj];jjj++){
	305	Float_t c1=fHisto->GetBinContent(jjj,ian+1);
	306	Float_t c2=fHisto->GetBinContent(jjj+1,ian+1);
	307	Float_t c3=fHisto->GetBinContent(jjj+2,ian+1);
	308	if(c1>fThreshold && c2>fThreshold && c3>fThreshold){
	309	fGoodInj[iii][ninj]=1;
	310	break;
	311	}
	312	}
	313	// for(Int_t jjj=fTbMin[ninj];jjj<fTbMax[ninj];jjj++){
	314	// Float_t c1=fHisto->GetBinContent(jjj,ian+1);
	315	// if(c1>=fgkSaturation){
	316	// fGoodInj[iii][ninj]=0;
	317	// break;
	318	// }
	319	// }
	320	}
	321	}
	322	}
	323	//______________________________________________________________________
	324	void AliITSOnlineSDDInjectors::FindCentroids(){
	325	//
	326	for(Int_t iii=0;iii<kNInjectors;iii++){
	327	Int_t ian=GetAnodeNumber(iii);
	328	for(Int_t ninj=0;ninj<3;ninj++){
	329	if(!fGoodInj[iii][ninj]) continue;
	330	Float_t maxcont=0;
	331	Int_t ilmax=-1;
	332	for(Int_t jjj=fTbMin[ninj];jjj<fTbMax[ninj];jjj++){
	333	Float_t cont=fHisto->GetBinContent(jjj,ian+1);
	334	if(cont>maxcont){
	335	maxcont=cont;
	336	ilmax=jjj;
	337	}
	338	}
	339	Float_t intCont=0;
	340	Int_t jjj=ilmax;
	341	while(1){
	342	Float_t cont=fHisto->GetBinContent(jjj,ian+1);
	343	if(cont<fThreshold) break;
	344	if(cont<fgkSaturation){
	345	fCentroid[iii][ninj]+=cont*(Float_t)jjj;
	346	fRMSCentroid[iii][ninj]+=cont*TMath::Power((Float_t)jjj,2);
	347	intCont+=cont;
	348	}
	349	jjj--;
350	}
351	jjj=ilmax+1;
352	while(1){
353	Float_t cont=fHisto->GetBinContent(jjj,ian+1);
354	if(cont<fThreshold) break;
355	if(cont<fgkSaturation){
356	fCentroid[iii][ninj]+=cont*float(jjj);
357	fRMSCentroid[iii][ninj]+=cont*TMath::Power((Float_t)jjj,2);
358	intCont+=cont;
359	}
360	jjj++;
361	}
362	if(intCont>0){
363	fCentroid[iii][ninj]/=intCont;
364	fRMSCentroid[iii][ninj]=TMath::Sqrt(fRMSCentroid[iii][ninj]/intCont-fCentroid[iii][ninj]*fCentroid[iii][ninj]);
365	}
366	else{
367	fCentroid[iii][ninj]=0.;
368	fRMSCentroid[iii][ninj]=0.;
369	fGoodInj[iii][ninj]=0;
370	}
4c82df4c	371	if(fRMSCentroid[iii][ninj]==0) fGoodInj[iii][ninj]=0;
348f80b7	372	}
	373	}
	374	}
	375	//______________________________________________________________________
	376	void AliITSOnlineSDDInjectors::PrintInjMap(){
	377	//
	378	for(Int_t iii=0;iii<kNInjectors;iii++){
	379	printf("Line%d-Anode%d: %d %d %d\n",iii,GetAnodeNumber(iii),fGoodInj[iii][0],fGoodInj[iii][1],fGoodInj[iii][2]);
	380	}
	381	}
	382	//______________________________________________________________________
	383	void AliITSOnlineSDDInjectors::PrintCentroids(){
	384	//
	385	for(Int_t iii=0;iii<kNInjectors;iii++){
	386	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]);
	387	}
	388	}
	389	//______________________________________________________________________
4c82df4c	390	void AliITSOnlineSDDInjectors::WriteToASCII(Int_t evNumb, UInt_t timeStamp, Int_t optAppend){
348f80b7	391	//
	392	Char_t outfilnam[100];
	393	sprintf(outfilnam,"SDDinj_mod%03d_sid%d.data",fModuleId,fSide);
4c82df4c	394	FILE* outf;
18da6e54	395	if(optAppend==0){
	396	outf=fopen(outfilnam,"w");
	397	fprintf(outf,"%d\n",fPolOrder);
	398	}
4c82df4c	399	else outf=fopen(outfilnam,"a");
4c82df4c	400	fprintf(outf,"%d %d ",evNumb,timeStamp);
348f80b7	401	for(Int_t ic=0;ic<fPolOrder+1;ic++){
	402	fprintf(outf,"%G ",fParam[ic]);
	403	}
	404	fprintf(outf,"\n");
	405	fclose(outf);
	406	}