[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(){
  // 

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