[u/mrichter/AliRoot.git] / ITS / AliITSClusterFinderV2SDD.cxx

/**************************************************************************
 * Copyright(c) 1998-2003, 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.                  *
 **************************************************************************/
////////////////////////////////////////////////////////////////////////////
//            Implementation of the ITS clusterer V2 class                //
//                                                                        //
//          Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch            //
//                                                                        //
///////////////////////////////////////////////////////////////////////////


#include "AliITSClusterFinderV2SDD.h"
#include "AliITSRecPoint.h"
#include "AliITSDetTypeRec.h"
#include "AliRawReader.h"
#include "AliITSRawStreamSDD.h"
#include "AliITSCalibrationSDD.h"
#include "AliITSDetTypeRec.h"
#include "AliITSsegmentationSDD.h"
#include <TClonesArray.h>
#include "AliITSdigitSDD.h"

ClassImp(AliITSClusterFinderV2SDD)

AliITSClusterFinderV2SDD::AliITSClusterFinderV2SDD(AliITSDetTypeRec* dettyp):AliITSClusterFinderV2(dettyp),
fNySDD(256),
fNzSDD(256),
fYpitchSDD(0.01825),
fZpitchSDD(0.02940),
fHwSDD(3.5085),
fHlSDD(3.7632),
fYoffSDD(0.0425){

  //Default constructor


}
 

void AliITSClusterFinderV2SDD::FindRawClusters(Int_t mod){

  //Find clusters V2
  SetModule(mod);
  FindClustersSDD(fDigits);

}

void AliITSClusterFinderV2SDD::FindClustersSDD(TClonesArray *digits) {
  //------------------------------------------------------------
  // Actual SDD cluster finder
  //------------------------------------------------------------
  Int_t kNzBins = fNzSDD + 2;
  const Int_t kMAXBIN=kNzBins*(fNySDD+2);

  AliBin *bins[2];
  bins[0]=new AliBin[kMAXBIN];
  bins[1]=new AliBin[kMAXBIN];
  AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule);
  AliITSresponseSDD* res  = (AliITSresponseSDD*)cal->GetResponse();
  const char *option=res->ZeroSuppOption();
  AliITSdigitSDD *d=0;
  Int_t i, ndigits=digits->GetEntriesFast();
  for (i=0; i<ndigits; i++) {
     d=(AliITSdigitSDD*)digits->UncheckedAt(i);
     Int_t y=d->GetCoord2()+1;   //y
     Int_t z=d->GetCoord1()+1;   //z
     Int_t q=d->GetSignal();
     if(!((strstr(option,"1D")) || (strstr(option,"2D")))){
       Float_t baseline = cal->GetBaseline(d->GetCoord1());
       if(q>baseline) q-=(Int_t)baseline;
       else q=0;
     }
     if(q<cal->GetThresholdAnode(d->GetCoord1())) continue;
     
     //if (q<3) continue;

     if (z <= fNzSDD) {
       bins[0][y*kNzBins+z].SetQ(q);
       bins[0][y*kNzBins+z].SetMask(1);
       bins[0][y*kNzBins+z].SetIndex(i);
     } else {
       z-=fNzSDD; 
       bins[1][y*kNzBins+z].SetQ(q);
       bins[1][y*kNzBins+z].SetMask(1);
       bins[1][y*kNzBins+z].SetIndex(i);
     }
  }
  
  FindClustersSDD(bins, kMAXBIN, kNzBins, digits);

  delete[] bins[0];
  delete[] bins[1];

}

void AliITSClusterFinderV2SDD::
FindClustersSDD(AliBin* bins[2], Int_t nMaxBin, Int_t nzBins, 
		TClonesArray *digits, TClonesArray *clusters) {
  //------------------------------------------------------------
  // Actual SDD cluster finder
  //------------------------------------------------------------
  AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule);
  Int_t ncl=0; 
  TClonesArray &cl=*clusters;
  for (Int_t s=0; s<2; s++)
    for (Int_t i=0; i<nMaxBin; i++) {
      if (bins[s][i].IsUsed()) continue;
      Int_t idx[32]; UInt_t msk[32]; Int_t npeaks=0;
      FindPeaks(i, nzBins, bins[s], idx, msk, npeaks);

      if (npeaks>30) continue;
      if (npeaks==0) continue;

      Int_t k,l;
      for (k=0; k<npeaks-1; k++){//mark adjacent peaks
        if (idx[k] < 0) continue; //this peak is already removed
        for (l=k+1; l<npeaks; l++) {
           if (idx[l] < 0) continue; //this peak is already removed
           Int_t ki=idx[k]/nzBins, kj=idx[k] - ki*nzBins;
           Int_t li=idx[l]/nzBins, lj=idx[l] - li*nzBins;
           Int_t di=TMath::Abs(ki - li);
           Int_t dj=TMath::Abs(kj - lj);
           if (di>1 || dj>1) continue;
           if (bins[s][idx[k]].GetQ() > bins[s][idx[l]].GetQ()) {
              msk[l]=msk[k];
              idx[l]*=-1;
           } else {
              msk[k]=msk[l];
              idx[k]*=-1;
              break;
           } 
        }
      }

      for (k=0; k<npeaks; k++) {
        MarkPeak(TMath::Abs(idx[k]), nzBins, bins[s], msk[k]);
      }
        
      for (k=0; k<npeaks; k++) {
         if (idx[k] < 0) continue; //removed peak
         AliITSRecPoint c;
         MakeCluster(idx[k], nzBins, bins[s], msk[k], c);
	 //mi change
	 Int_t milab[10];
	 for (Int_t ilab=0;ilab<10;ilab++){
	   milab[ilab]=-2;
	 }
	 Int_t maxi=0,mini=0,maxj=0,minj=0;
	 //AliBin *bmax=&bins[s][idx[k]];
	 //Float_t max = TMath::Max(TMath::Abs(bmax->GetQ())/5.,3.);
	 Float_t max=3;
	 for (Int_t di=-2; di<=2;di++)
	   for (Int_t dj=-3;dj<=3;dj++){
	     Int_t index = idx[k]+di+dj*nzBins;
	     if (index<0) continue;
	     if (index>=nMaxBin) continue;
	     AliBin *b=&bins[s][index];
	     if (TMath::Abs(b->GetQ())>max){
	       if (di>maxi) maxi=di;
	       if (di<mini) mini=di;
	       if (dj>maxj) maxj=dj;
	       if (dj<minj) minj=dj;
	       //
	       if(digits) {
		 if (TMath::Abs(di)<2&&TMath::Abs(dj)<2){
		   AliITSdigitSDD* d=(AliITSdigitSDD*)digits->UncheckedAt(b->GetIndex());
		   for (Int_t itrack=0;itrack<10;itrack++){
		     Int_t track = (d->GetTracks())[itrack];
		     if (track>=0) {
		       AddLabel(milab, track); 
		     }
		   }
		 }
	       }
	     }
	   }
	 
	 /* 
	    Float_t s2 = c.GetSigmaY2()/c.GetQ() - c.GetY()*c.GetY();
	    Float_t w=par->GetPadPitchWidth(sec);
	    c.SetSigmaY2(s2);
	    if (s2 != 0.) {
	    c.SetSigmaY2(c.GetSigmaY2()*0.108);
	    if (sec<par->GetNInnerSector()) c.SetSigmaY2(c.GetSigmaY2()*2.07);
	    }	 
	    s2 = c.GetSigmaZ2()/c.GetQ() - c.GetZ()*c.GetZ();
	    w=par->GetZWidth();
	    c.SetSigmaZ2(s2);
	    
	    if (s2 != 0.) {
	    c.SetSigmaZ2(c.GetSigmaZ2()*0.169);
	    if (sec<par->GetNInnerSector()) c.SetSigmaZ2(c.GetSigmaZ2()*1.77);
	    }
	 */

         Float_t y=c.GetY(),z=c.GetZ(), q=c.GetQ();
         y/=q; z/=q;
	 //
	 //Float_t s2 = c.GetSigmaY2()/c.GetQ() - y*y;
	 // c.SetSigmaY2(s2);
	 //s2 = c.GetSigmaZ2()/c.GetQ() - z*z;
         //c.SetSigmaZ2(s2);
	 //

	 Float_t yyyy = y;
         //y=(y-0.5)*fYpitchSDD;
         //y-=fHwSDD;
         //y-=fYoffSDD;  //delay ?
         //if (s) y=-y;

         z=(z-0.5)*fZpitchSDD;
         z-=fHlSDD;
	 Float_t zdet = z;
	 //      y=-(-y+fYshift[fModule]);
	 // z=  -z+fZshift[fModule];
	 //      c.SetY(y);
	 //  c.SetZ(z);
	 Float_t timebin = GetSeg()->Dpx(0);
	 Float_t xdet = cal->GetDriftPath((yyyy-0.5)*timebin,0);
	 xdet=xdet/10000.-fHwSDD-fYoffSDD;
	 if (s) xdet=-xdet;
	 
	 CorrectPosition(zdet,xdet);

	 y=-(-xdet+fYshift[fModule]);
	 z=  -zdet+fZshift[fModule];
	  
         q/=5.243;  //to have MPV 1 MIP = 86.4 KeV --> this must go to calibr.
         Float_t hit[5] = {y, z, 0.0030*0.0030, 0.0020*0.0020, q};
         Int_t  info[3] = {maxj-minj+1, maxi-mini+1, fNlayer[fModule]};

         if (c.GetQ() < 20.) continue; //noise cluster
	 
	 if (digits) {	  
	   //	   AliBin *b=&bins[s][idx[k]];
	   //	   AliITSdigitSDD* d=(AliITSdigitSDD*)digits->UncheckedAt(b->GetIndex());
	   {
	     //Int_t lab[3];
	     //lab[0]=(d->GetTracks())[0];
	     //lab[1]=(d->GetTracks())[1];
	     //lab[2]=(d->GetTracks())[2];
	     //CheckLabels(lab);
	     CheckLabels2(milab); 
	   }
	 }
         milab[3]=fNdet[fModule];

         AliITSRecPoint cc(milab,hit,info);
	 cc.SetType(npeaks);

	 if(clusters) new (cl[ncl]) AliITSRecPoint(cc); 
	 else {
	   fDetTypeRec->AddRecPoint(cc);
	 }
	 ncl++;
      }
    }
}


void AliITSClusterFinderV2SDD::RawdataToClusters(AliRawReader* rawReader,TClonesArray** clusters){
    //------------------------------------------------------------
  // This function creates ITS clusters from raw data
  //------------------------------------------------------------
  rawReader->Reset();
  AliITSRawStreamSDD inputSDD(rawReader);
  FindClustersSDD(&inputSDD,clusters);

}

void AliITSClusterFinderV2SDD::FindClustersSDD(AliITSRawStream* input, 
					TClonesArray** clusters) 
{
  //------------------------------------------------------------
  // Actual SDD cluster finder for raw data
  //------------------------------------------------------------
  Int_t nClustersSDD = 0;
  Int_t kNzBins = fNzSDD + 2;
  Int_t kMaxBin = kNzBins * (fNySDD+2);
  AliBin *binsSDDInit = new AliBin[kMaxBin];
  AliBin *binsSDD1 = new AliBin[kMaxBin];
  AliBin *binsSDD2 = new AliBin[kMaxBin];
  AliBin* bins[2] = {NULL, NULL};

  // read raw data input stream
  while (kTRUE) {
    Bool_t next = input->Next();
    if (!next || input->IsNewModule()) {
      Int_t iModule = input->GetPrevModuleID();

      // when all data from a module was read, search for clusters
      if (bins[0]) { 
	clusters[iModule] = new TClonesArray("AliITSRecPoint");
	fModule = iModule;
	FindClustersSDD(bins, kMaxBin, kNzBins, NULL, clusters[iModule]);
	Int_t nClusters = clusters[iModule]->GetEntriesFast();
	nClustersSDD += nClusters;
	bins[0] = bins[1] = NULL;	
      }

      if (!next) break;
      bins[0]=binsSDD1;
      bins[1]=binsSDD2;
      memcpy(binsSDD1,binsSDDInit,sizeof(AliBin)*kMaxBin);
      memcpy(binsSDD2,binsSDDInit,sizeof(AliBin)*kMaxBin);

    }

    // fill the current digit into the bins array
    AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(input->GetModuleID());
    AliITSresponseSDD* res  = (AliITSresponseSDD*)cal->GetResponse();
    const char *option=res->ZeroSuppOption();
    Int_t q=input->GetSignal();
    if(!((strstr(option,"1D")) || (strstr(option,"2D")))){
      Float_t baseline = cal->GetBaseline(input->GetCoord1());
       if(q>baseline) q-=(Int_t)baseline;
       else q=0;
     }
    if(q>=cal->GetThresholdAnode(input->GetCoord1())) {
      Int_t iz = input->GetCoord1()+1;
      //Int_t side = ((iz <= fNzSDD) ? 0 : 1);
      Int_t side = ((AliITSRawStreamSDD*)input)->GetChannel();
      //  iz -= side*fNzSDD;
      Int_t index = (input->GetCoord2()+1) * kNzBins + iz;
      bins[side][index].SetQ(q);
      bins[side][index].SetMask(1);
      bins[side][index].SetIndex(index);
    }
  }
  delete[] binsSDD1;
  delete[] binsSDD2;
  delete[] binsSDDInit;

  Info("FindClustersSDD", "found clusters in ITS SDD: %d", nClustersSDD);
}


//_________________________________________________________________________
void AliITSClusterFinderV2SDD::CorrectPosition(Float_t &z, Float_t&y){

  //correction of coordinates using the maps stored in the DB

  AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule);
  static const Int_t knbint = cal->GetMapTimeNBin();
  static const Int_t knbina = cal->Chips()*cal->Channels();
  Float_t stepa = (GetSeg()->Dpz(0))/10000.; //anode pitch in cm
  Float_t stept = (GetSeg()->Dx()/cal->GetMapTimeNBin()/2.)/10.;
  
  Int_t bint = TMath::Abs((Int_t)(y/stept));
  if(y>=0) bint+=(Int_t)(knbint/2.);
  if(bint>knbint) AliError("Wrong bin number!");

  Int_t bina = TMath::Abs((Int_t)(z/stepa));
  if(z>=0) bina+=(Int_t)(knbina/2.);
  if(bina>knbina) AliError("Wrong bin number!");

  Float_t devz = cal->GetMapACell(bina,bint)/10000.;
  Float_t devx = cal->GetMapTCell(bina,bint)/10000.;
  z+=devz;
  y+=devx;


}
Commit	Line	Data
	1	/**************************************************************************
	2	* Copyright(c) 1998-2003, 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	////////////////////////////////////////////////////////////////////////////
	16	// Implementation of the ITS clusterer V2 class //
	17	// //
	18	// Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch //
	19	// //
	20	///////////////////////////////////////////////////////////////////////////
	21
	22
	23
	24	#include "AliITSClusterFinderV2SDD.h"
	25	#include "AliITSRecPoint.h"
	26	#include "AliITSDetTypeRec.h"
	27	#include "AliRawReader.h"
	28	#include "AliITSRawStreamSDD.h"
	29	#include "AliITSCalibrationSDD.h"
	30	#include "AliITSDetTypeRec.h"
	31	#include "AliITSsegmentationSDD.h"
	32	#include <TClonesArray.h>
	33	#include "AliITSdigitSDD.h"
	34
	35	ClassImp(AliITSClusterFinderV2SDD)
	36
	37	AliITSClusterFinderV2SDD::AliITSClusterFinderV2SDD(AliITSDetTypeRec* dettyp):AliITSClusterFinderV2(dettyp),
	38	fNySDD(256),
	39	fNzSDD(256),
	40	fYpitchSDD(0.01825),
	41	fZpitchSDD(0.02940),
	42	fHwSDD(3.5085),
	43	fHlSDD(3.7632),
	44	fYoffSDD(0.0425){
	45
	46	//Default constructor
	47
	48
	49	}
	50
	51
	52	void AliITSClusterFinderV2SDD::FindRawClusters(Int_t mod){
	53
	54	//Find clusters V2
	55	SetModule(mod);
	56	FindClustersSDD(fDigits);
	57
	58	}
	59
	60	void AliITSClusterFinderV2SDD::FindClustersSDD(TClonesArray *digits) {
	61	//------------------------------------------------------------
	62	// Actual SDD cluster finder
	63	//------------------------------------------------------------
	64	Int_t kNzBins = fNzSDD + 2;
	65	const Int_t kMAXBIN=kNzBins*(fNySDD+2);
	66
	67	AliBin *bins[2];
	68	bins[0]=new AliBin[kMAXBIN];
	69	bins[1]=new AliBin[kMAXBIN];
	70	AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule);
	71	AliITSresponseSDD* res = (AliITSresponseSDD*)cal->GetResponse();
	72	const char *option=res->ZeroSuppOption();
	73	AliITSdigitSDD *d=0;
	74	Int_t i, ndigits=digits->GetEntriesFast();
	75	for (i=0; i<ndigits; i++) {
	76	d=(AliITSdigitSDD*)digits->UncheckedAt(i);
	77	Int_t y=d->GetCoord2()+1; //y
	78	Int_t z=d->GetCoord1()+1; //z
	79	Int_t q=d->GetSignal();
	80	if(!((strstr(option,"1D")) \|\| (strstr(option,"2D")))){
	81	Float_t baseline = cal->GetBaseline(d->GetCoord1());
	82	if(q>baseline) q-=(Int_t)baseline;
	83	else q=0;
	84	}
	85	if(q<cal->GetThresholdAnode(d->GetCoord1())) continue;
	86
	87	//if (q<3) continue;
	88
	89	if (z <= fNzSDD) {
	90	bins[0][y*kNzBins+z].SetQ(q);
	91	bins[0][y*kNzBins+z].SetMask(1);
	92	bins[0][y*kNzBins+z].SetIndex(i);
	93	} else {
	94	z-=fNzSDD;
	95	bins[1][y*kNzBins+z].SetQ(q);
	96	bins[1][y*kNzBins+z].SetMask(1);
	97	bins[1][y*kNzBins+z].SetIndex(i);
	98	}
	99	}
	100
	101	FindClustersSDD(bins, kMAXBIN, kNzBins, digits);
	102
	103	delete[] bins[0];
	104	delete[] bins[1];
	105
	106	}
	107
	108	void AliITSClusterFinderV2SDD::
	109	FindClustersSDD(AliBin* bins[2], Int_t nMaxBin, Int_t nzBins,
	110	TClonesArray digits, TClonesArray clusters) {
	111	//------------------------------------------------------------
	112	// Actual SDD cluster finder
	113	//------------------------------------------------------------
	114	AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule);
	115	Int_t ncl=0;
	116	TClonesArray &cl=*clusters;
	117	for (Int_t s=0; s<2; s++)
	118	for (Int_t i=0; i<nMaxBin; i++) {
	119	if (bins[s][i].IsUsed()) continue;
	120	Int_t idx[32]; UInt_t msk[32]; Int_t npeaks=0;
	121	FindPeaks(i, nzBins, bins[s], idx, msk, npeaks);
	122
	123	if (npeaks>30) continue;
	124	if (npeaks==0) continue;
	125
	126	Int_t k,l;
	127	for (k=0; k<npeaks-1; k++){//mark adjacent peaks
	128	if (idx[k] < 0) continue; //this peak is already removed
	129	for (l=k+1; l<npeaks; l++) {
	130	if (idx[l] < 0) continue; //this peak is already removed
	131	Int_t ki=idx[k]/nzBins, kj=idx[k] - ki*nzBins;
	132	Int_t li=idx[l]/nzBins, lj=idx[l] - li*nzBins;
	133	Int_t di=TMath::Abs(ki - li);
	134	Int_t dj=TMath::Abs(kj - lj);
	135	if (di>1 \|\| dj>1) continue;
	136	if (bins[s][idx[k]].GetQ() > bins[s][idx[l]].GetQ()) {
	137	msk[l]=msk[k];
	138	idx[l]*=-1;
	139	} else {
	140	msk[k]=msk[l];
	141	idx[k]*=-1;
	142	break;
	143	}
	144	}
	145	}
	146
	147	for (k=0; k<npeaks; k++) {
	148	MarkPeak(TMath::Abs(idx[k]), nzBins, bins[s], msk[k]);
	149	}
	150
	151	for (k=0; k<npeaks; k++) {
	152	if (idx[k] < 0) continue; //removed peak
	153	AliITSRecPoint c;
	154	MakeCluster(idx[k], nzBins, bins[s], msk[k], c);
	155	//mi change
	156	Int_t milab[10];
	157	for (Int_t ilab=0;ilab<10;ilab++){
	158	milab[ilab]=-2;
	159	}
	160	Int_t maxi=0,mini=0,maxj=0,minj=0;
	161	//AliBin *bmax=&bins[s][idx[k]];
	162	//Float_t max = TMath::Max(TMath::Abs(bmax->GetQ())/5.,3.);
	163	Float_t max=3;
	164	for (Int_t di=-2; di<=2;di++)
	165	for (Int_t dj=-3;dj<=3;dj++){
	166	Int_t index = idx[k]+di+dj*nzBins;
	167	if (index<0) continue;
	168	if (index>=nMaxBin) continue;
	169	AliBin *b=&bins[s][index];
	170	if (TMath::Abs(b->GetQ())>max){
	171	if (di>maxi) maxi=di;
	172	if (di<mini) mini=di;
	173	if (dj>maxj) maxj=dj;
	174	if (dj<minj) minj=dj;
	175	//
	176	if(digits) {
	177	if (TMath::Abs(di)<2&&TMath::Abs(dj)<2){
	178	AliITSdigitSDD* d=(AliITSdigitSDD*)digits->UncheckedAt(b->GetIndex());
	179	for (Int_t itrack=0;itrack<10;itrack++){
	180	Int_t track = (d->GetTracks())[itrack];
	181	if (track>=0) {
	182	AddLabel(milab, track);
	183	}
	184	}
	185	}
	186	}
	187	}
	188	}
	189
	190	/*
	191	Float_t s2 = c.GetSigmaY2()/c.GetQ() - c.GetY()*c.GetY();
	192	Float_t w=par->GetPadPitchWidth(sec);
	193	c.SetSigmaY2(s2);
	194	if (s2 != 0.) {
	195	c.SetSigmaY2(c.GetSigmaY2()*0.108);
	196	if (sec<par->GetNInnerSector()) c.SetSigmaY2(c.GetSigmaY2()*2.07);
	197	}
	198	s2 = c.GetSigmaZ2()/c.GetQ() - c.GetZ()*c.GetZ();
	199	w=par->GetZWidth();
	200	c.SetSigmaZ2(s2);
	201
	202	if (s2 != 0.) {
	203	c.SetSigmaZ2(c.GetSigmaZ2()*0.169);
	204	if (sec<par->GetNInnerSector()) c.SetSigmaZ2(c.GetSigmaZ2()*1.77);
	205	}
	206	*/
	207
	208	Float_t y=c.GetY(),z=c.GetZ(), q=c.GetQ();
	209	y/=q; z/=q;
	210	//
	211	//Float_t s2 = c.GetSigmaY2()/c.GetQ() - y*y;
	212	// c.SetSigmaY2(s2);
	213	//s2 = c.GetSigmaZ2()/c.GetQ() - z*z;
	214	//c.SetSigmaZ2(s2);
	215	//
	216
	217	Float_t yyyy = y;
	218	//y=(y-0.5)*fYpitchSDD;
	219	//y-=fHwSDD;
	220	//y-=fYoffSDD; //delay ?
	221	//if (s) y=-y;
	222
	223	z=(z-0.5)*fZpitchSDD;
	224	z-=fHlSDD;
	225	Float_t zdet = z;
	226	// y=-(-y+fYshift[fModule]);
	227	// z= -z+fZshift[fModule];
	228	// c.SetY(y);
	229	// c.SetZ(z);
	230	Float_t timebin = GetSeg()->Dpx(0);
	231	Float_t xdet = cal->GetDriftPath((yyyy-0.5)*timebin,0);
	232	xdet=xdet/10000.-fHwSDD-fYoffSDD;
	233	if (s) xdet=-xdet;
	234
	235	CorrectPosition(zdet,xdet);
	236
	237	y=-(-xdet+fYshift[fModule]);
	238	z= -zdet+fZshift[fModule];
	239
	240	q/=5.243; //to have MPV 1 MIP = 86.4 KeV --> this must go to calibr.
	241	Float_t hit[5] = {y, z, 0.00300.0030, 0.00200.0020, q};
	242	Int_t info[3] = {maxj-minj+1, maxi-mini+1, fNlayer[fModule]};
	243
	244	if (c.GetQ() < 20.) continue; //noise cluster
	245
	246	if (digits) {
	247	// AliBin *b=&bins[s][idx[k]];
	248	// AliITSdigitSDD* d=(AliITSdigitSDD*)digits->UncheckedAt(b->GetIndex());
	249	{
	250	//Int_t lab[3];
	251	//lab[0]=(d->GetTracks())[0];
	252	//lab[1]=(d->GetTracks())[1];
	253	//lab[2]=(d->GetTracks())[2];
	254	//CheckLabels(lab);
	255	CheckLabels2(milab);
	256	}
	257	}
	258	milab[3]=fNdet[fModule];
	259
	260	AliITSRecPoint cc(milab,hit,info);
	261	cc.SetType(npeaks);
	262
	263	if(clusters) new (cl[ncl]) AliITSRecPoint(cc);
	264	else {
	265	fDetTypeRec->AddRecPoint(cc);
	266	}
	267	ncl++;
	268	}
	269	}
	270	}
	271
	272
	273
	274	void AliITSClusterFinderV2SDD::RawdataToClusters(AliRawReader* rawReader,TClonesArray** clusters){
	275	//------------------------------------------------------------
	276	// This function creates ITS clusters from raw data
	277	//------------------------------------------------------------
	278	rawReader->Reset();
	279	AliITSRawStreamSDD inputSDD(rawReader);
	280	FindClustersSDD(&inputSDD,clusters);
	281
	282	}
	283
	284	void AliITSClusterFinderV2SDD::FindClustersSDD(AliITSRawStream* input,
	285	TClonesArray** clusters)
	286	{
	287	//------------------------------------------------------------
	288	// Actual SDD cluster finder for raw data
	289	//------------------------------------------------------------
	290	Int_t nClustersSDD = 0;
	291	Int_t kNzBins = fNzSDD + 2;
	292	Int_t kMaxBin = kNzBins * (fNySDD+2);
	293	AliBin *binsSDDInit = new AliBin[kMaxBin];
	294	AliBin *binsSDD1 = new AliBin[kMaxBin];
	295	AliBin *binsSDD2 = new AliBin[kMaxBin];
	296	AliBin* bins[2] = {NULL, NULL};
	297
	298	// read raw data input stream
	299	while (kTRUE) {
	300	Bool_t next = input->Next();
	301	if (!next \|\| input->IsNewModule()) {
	302	Int_t iModule = input->GetPrevModuleID();
	303
	304	// when all data from a module was read, search for clusters
	305	if (bins[0]) {
	306	clusters[iModule] = new TClonesArray("AliITSRecPoint");
	307	fModule = iModule;
	308	FindClustersSDD(bins, kMaxBin, kNzBins, NULL, clusters[iModule]);
	309	Int_t nClusters = clusters[iModule]->GetEntriesFast();
	310	nClustersSDD += nClusters;
	311	bins[0] = bins[1] = NULL;
	312	}
	313
	314	if (!next) break;
	315	bins[0]=binsSDD1;
	316	bins[1]=binsSDD2;
	317	memcpy(binsSDD1,binsSDDInit,sizeof(AliBin)*kMaxBin);
	318	memcpy(binsSDD2,binsSDDInit,sizeof(AliBin)*kMaxBin);
	319
	320	}
	321
	322	// fill the current digit into the bins array
	323	AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(input->GetModuleID());
	324	AliITSresponseSDD* res = (AliITSresponseSDD*)cal->GetResponse();
	325	const char *option=res->ZeroSuppOption();
	326	Int_t q=input->GetSignal();
	327	if(!((strstr(option,"1D")) \|\| (strstr(option,"2D")))){
	328	Float_t baseline = cal->GetBaseline(input->GetCoord1());
	329	if(q>baseline) q-=(Int_t)baseline;
	330	else q=0;
	331	}
	332	if(q>=cal->GetThresholdAnode(input->GetCoord1())) {
	333	Int_t iz = input->GetCoord1()+1;
	334	//Int_t side = ((iz <= fNzSDD) ? 0 : 1);
	335	Int_t side = ((AliITSRawStreamSDD*)input)->GetChannel();
	336	// iz -= side*fNzSDD;
	337	Int_t index = (input->GetCoord2()+1) * kNzBins + iz;
	338	bins[side][index].SetQ(q);
	339	bins[side][index].SetMask(1);
	340	bins[side][index].SetIndex(index);
	341	}
	342	}
	343	delete[] binsSDD1;
	344	delete[] binsSDD2;
	345	delete[] binsSDDInit;
	346
	347	Info("FindClustersSDD", "found clusters in ITS SDD: %d", nClustersSDD);
	348	}
	349
	350
	351	//_________________________________________________________________________
	352	void AliITSClusterFinderV2SDD::CorrectPosition(Float_t &z, Float_t&y){
	353
	354	//correction of coordinates using the maps stored in the DB
	355
	356	AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule);
	357	static const Int_t knbint = cal->GetMapTimeNBin();
	358	static const Int_t knbina = cal->Chips()*cal->Channels();
	359	Float_t stepa = (GetSeg()->Dpz(0))/10000.; //anode pitch in cm
	360	Float_t stept = (GetSeg()->Dx()/cal->GetMapTimeNBin()/2.)/10.;
	361
	362	Int_t bint = TMath::Abs((Int_t)(y/stept));
	363	if(y>=0) bint+=(Int_t)(knbint/2.);
	364	if(bint>knbint) AliError("Wrong bin number!");
	365
	366	Int_t bina = TMath::Abs((Int_t)(z/stepa));
	367	if(z>=0) bina+=(Int_t)(knbina/2.);
	368	if(bina>knbina) AliError("Wrong bin number!");
	369
	370	Float_t devz = cal->GetMapACell(bina,bint)/10000.;
	371	Float_t devx = cal->GetMapTCell(bina,bint)/10000.;
	372	z+=devz;
	373	y+=devx;
	374
	375
	376	}