[u/mrichter/AliRoot.git] / ITS / AliITSClusterFinderV2SPD.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            //
//          Unfolding switch from AliITSRecoParam: D. Elia, INFN Bari     //
//                                                                        //
////////////////////////////////////////////////////////////////////////////


#include "AliITSClusterFinderV2SPD.h"
#include "AliITSRecPoint.h"
#include "AliITSgeomTGeo.h"
#include "AliITSDetTypeRec.h"
#include "AliITSReconstructor.h"
#include "AliRawReader.h"
#include "AliITSRawStreamSPD.h"
#include <TClonesArray.h>
#include "AliITSdigitSPD.h"

ClassImp(AliITSClusterFinderV2SPD)

AliITSClusterFinderV2SPD::AliITSClusterFinderV2SPD(AliITSDetTypeRec* dettyp):AliITSClusterFinderV2(dettyp),
fLastSPD1(AliITSgeomTGeo::GetModuleIndex(2,1,1)-1),
fNySPD(256),
fNzSPD(160),
fYpitchSPD(0.0050),
fZ1pitchSPD(0.0425),
fZ2pitchSPD(0.0625),
fHwSPD(0.64),
fHlSPD(3.48){

  //Default constructor

  fYSPD[0]=0.5*fYpitchSPD;
  for (Int_t m=1; m<fNySPD; m++) fYSPD[m]=fYSPD[m-1]+fYpitchSPD; 
  fZSPD[0]=fZ1pitchSPD;
  for (Int_t m=1; m<fNzSPD; m++) {
    Double_t dz=fZ1pitchSPD;
    if (m==31 || m==32 || m==63  || m==64  || m==95 || m==96 || 
        m==127 || m==128) dz=fZ2pitchSPD; 
    fZSPD[m]=fZSPD[m-1]+dz;
  }
  for (Int_t m=0; m<fNzSPD; m++) {
    Double_t dz=0.5*fZ1pitchSPD;
    if (m==31 || m==32 || m==63  || m==64  || m==95 || m==96 || 
        m==127 || m==128) dz=0.5*fZ2pitchSPD; 
    fZSPD[m]-=dz;
  }

}
 

void AliITSClusterFinderV2SPD::FindRawClusters(Int_t mod){

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

}

void AliITSClusterFinderV2SPD::RawdataToClusters(AliRawReader* rawReader, TClonesArray** clusters){
    //------------------------------------------------------------
  // This function creates ITS clusters from raw data
  //------------------------------------------------------------
  rawReader->Reset();
  AliITSRawStreamSPD inputSPD(rawReader);
  FindClustersSPD(&inputSPD, clusters);

}

Int_t AliITSClusterFinderV2SPD::ClustersSPD(AliBin* bins, TClonesArray* digits,TClonesArray* clusters,Int_t maxBins,Int_t nzbins,Int_t iModule,Bool_t rawdata){
  
  //Cluster finder for SPD (from digits and from rawdata)

  static AliITSRecoParam *repa = NULL;
  if(!repa){
    repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam();
    if(!repa){
      repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParamDefault();
      AliWarning("Using default AliITSRecoParam class");
    }
  }
  const TGeoHMatrix *mT2L=AliITSgeomTGeo::GetTracking2LocalMatrix(iModule);
  
  Int_t nclu=0;
  for(Int_t iBin =0; iBin < maxBins;iBin++){
    if(bins[iBin].IsUsed()) continue;
    Int_t nBins = 0;
    Int_t idxBins[200];
    FindCluster(iBin,nzbins,bins,nBins,idxBins);
    if (nBins == 200){
      Error("ClustersSPD","SPD Too big cluster !\n"); 
      continue;
    }
    Int_t milab[10];
    for(Int_t ilab=0;ilab<10;ilab++){
      milab[ilab]=-2;
    }
    if(rawdata){
      milab[3]=fNdet[iModule];
    }
    Int_t ymin,ymax,zmin,zmax;
    if(rawdata){
      ymin = (idxBins[0] / nzbins) - 1;
      ymax = ymin;
      zmin = (idxBins[0] % nzbins) - 1;
      zmax = zmin;
    }
    else{
      AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[0]);
      ymin=dig->GetCoord2();
      ymax=ymin;
      zmin=dig->GetCoord1();
      zmax=zmin;
    }
    for (Int_t idx = 0; idx < nBins; idx++) {
      Int_t iy;
      Int_t iz; 
      if(rawdata){
	iy  = (idxBins[idx] / nzbins) - 1;
	iz  = (idxBins[idx] % nzbins) - 1;
      }
      else{
	AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[idx]);
	iy = dig->GetCoord2();
	iz = dig->GetCoord1();
      }
      if (ymin > iy) ymin = iy;
      if (ymax < iy) ymax = iy;
      if (zmin > iz) zmin = iz;
      if (zmax < iz) zmax = iz;

    }
    if(!rawdata){
      for(Int_t l=0;l<nBins;l++){
	AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[l]);
	for(Int_t dlab=0;dlab<10;dlab++){
	  Int_t digitlab = (dig->GetTracks())[dlab];
	  if(digitlab<0) continue;
	  AddLabel(milab,digitlab);
	}
	if (milab[9]>0) CheckLabels2(milab);
      }
      CheckLabels2(milab);
    }
    
    Int_t idy =0; //max 2 clusters
    if((iModule <= fLastSPD1) &&idy<3) idy=3;
    if((iModule > fLastSPD1) &&idy<4) idy=4;
    Int_t idz=3;

    // Switch the unfolding OFF/ON
    if(!repa->GetUseUnfoldingInClusterFinderSPD()) {
      idy=ymax-ymin+1;
      idz=zmax-zmin+1;
    }
 
    for(Int_t iiz=zmin; iiz<=zmax;iiz+=idz){
      for(Int_t iiy=ymin;iiy<=ymax;iiy+=idy){

	Int_t ndigits=0;
	Float_t y=0.,z=0.,q=0.;
	for(Int_t idx=0;idx<nBins;idx++){
	  Int_t iy;
	  Int_t iz; 
	  if(rawdata){
	    iy  = (idxBins[idx] / nzbins)-1;
	    iz  = (idxBins[idx] % nzbins)-1;
	  }
	  else{
	    AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[idx]);
	    iy = dig->GetCoord2();
	    iz = dig->GetCoord1();
	  }
	  if(zmax-zmin>=idz || ymax-ymin>=idy){
	    if(TMath::Abs(iy-iiy)>0.75*idy) continue;
	    if(TMath::Abs(iz-iiz)>0.75*idz) continue;
	  }
	  ndigits++;
	  Float_t qBin;
	  if(rawdata) qBin = bins[idxBins[idx]].GetQ();
	  if(!rawdata){
	    AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[idx]);
	    qBin = (Float_t)dig->GetSignal();
	  }
	  y+= qBin * fYSPD[iy];
	  z+= qBin * fZSPD[iz];
	  q+= qBin;	
	}// for idx
	if(ndigits==0) continue;
	y /= q;
	z /= q;
	y -= fHwSPD;
	z -= fHlSPD;

	Float_t hit[5]; //y,z,sigma(y)^2, sigma(z)^2, charge
        {
        Double_t loc[3]={y,0.,z},trk[3]={0.,0.,0.};
        mT2L->MasterToLocal(loc,trk);
        hit[0]=trk[1];
        hit[1]=trk[2];
	}
	hit[2] = fYpitchSPD*fYpitchSPD/12.;
	hit[3] = fZ1pitchSPD*fZ1pitchSPD/12.;
	hit[4] = 1.;

	if(!rawdata) milab[3]=fNdet[iModule];
	Int_t info[3] = {ymax-ymin+1,zmax-zmin+1,fNlayer[iModule]};
	if(!rawdata){
	 AliITSRecPoint cl(milab,hit,info);
	 fDetTypeRec->AddRecPoint(cl);
	}
        else{
	  Int_t label[4]={milab[0],milab[1],milab[2],milab[3]};
	  new (clusters->AddrAt(nclu)) 
		AliITSRecPoint(label, hit,info);
	} 
	nclu++;
      }// for iiy
    }// for iiz
  }//end for iBin
  return nclu;
  
}


void AliITSClusterFinderV2SPD::FindClustersSPD(AliITSRawStream* input, 
					TClonesArray** clusters) 
{
  //------------------------------------------------------------
  // Actual SPD cluster finder for raw data
  //------------------------------------------------------------
  Int_t nClustersSPD = 0;
  Int_t kNzBins = fNzSPD + 2;
  Int_t kNyBins = fNySPD + 2;
  Int_t kMaxBin = kNzBins * kNyBins;
  AliBin *binsSPD = new AliBin[kMaxBin];
  AliBin *binsSPDInit = new AliBin[kMaxBin];  
  AliBin* bins = 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) { 
	clusters[iModule] = new TClonesArray("AliITSRecPoint");
	Int_t nClusters = ClustersSPD(bins,0,clusters[iModule],kMaxBin,kNzBins,iModule,kTRUE);
	nClustersSPD += nClusters;
	bins = NULL;
      }

      if (!next) break;
      bins = binsSPD;
      memcpy(binsSPD,binsSPDInit,sizeof(AliBin)*kMaxBin);
    }

    // fill the current digit into the bins array
    Int_t index = (input->GetCoord2()+1) * kNzBins + (input->GetCoord1()+1);
    bins[index].SetIndex(index);
    bins[index].SetMask(1);
    bins[index].SetQ(1);
  }

  delete [] binsSPDInit;
  delete [] binsSPD;
  
  AliDebug(1,Form("found clusters in ITS SPD: %d", nClustersSPD));
}


void AliITSClusterFinderV2SPD::FindClustersSPD(TClonesArray *digits) {
  //------------------------------------------------------------
  // Actual SPD cluster finder
  //------------------------------------------------------------


  Int_t kNzBins = fNzSPD + 2;
  const Int_t kMAXBIN=kNzBins*(fNySPD+2);

  Int_t ndigits=digits->GetEntriesFast();
  AliBin *bins=new AliBin[kMAXBIN];

  Int_t k;
  AliITSdigitSPD *d=0;
  for (k=0; k<ndigits; k++) {
     d=(AliITSdigitSPD*)digits->UncheckedAt(k);
     Int_t i=d->GetCoord2()+1;   //y
     Int_t j=d->GetCoord1()+1;
     Int_t index=i*kNzBins+j;
     bins[index].SetIndex(k);
     bins[index].SetMask(1);
  }
   
  Int_t nClustersSPD = ClustersSPD(bins,digits,0,kMAXBIN,kNzBins,fModule,kFALSE); 
  delete [] bins;

  AliDebug(1,Form("found clusters in ITS SPD: %d", nClustersSPD));
}
Commit	Line	Data
04366a57	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 //
d6d232ba	19	// Unfolding switch from AliITSRecoParam: D. Elia, INFN Bari //
04366a57	20	// //
d6d232ba	21	////////////////////////////////////////////////////////////////////////////
04366a57	22
04366a57	23
04366a57	24	#include "AliITSClusterFinderV2SPD.h"
00a7cc50	25	#include "AliITSRecPoint.h"
1f3e997f	26	#include "AliITSgeomTGeo.h"
7d62fb64	27	#include "AliITSDetTypeRec.h"
d6d232ba	28	#include "AliITSReconstructor.h"
04366a57	29	#include "AliRawReader.h"
04366a57	30	#include "AliITSRawStreamSPD.h"
04366a57	31	#include <TClonesArray.h>
04366a57	32	#include "AliITSdigitSPD.h"
	33
	34	ClassImp(AliITSClusterFinderV2SPD)
	35
e56160b8	36	AliITSClusterFinderV2SPD::AliITSClusterFinderV2SPD(AliITSDetTypeRec* dettyp):AliITSClusterFinderV2(dettyp),
1f3e997f	37	fLastSPD1(AliITSgeomTGeo::GetModuleIndex(2,1,1)-1),
e56160b8	38	fNySPD(256),
	39	fNzSPD(160),
	40	fYpitchSPD(0.0050),
	41	fZ1pitchSPD(0.0425),
	42	fZ2pitchSPD(0.0625),
	43	fHwSPD(0.64),
	44	fHlSPD(3.48){
04366a57	45
04366a57	46	//Default constructor
04366a57	47
04366a57	48	fYSPD[0]=0.5*fYpitchSPD;
	49	for (Int_t m=1; m<fNySPD; m++) fYSPD[m]=fYSPD[m-1]+fYpitchSPD;
	50	fZSPD[0]=fZ1pitchSPD;
	51	for (Int_t m=1; m<fNzSPD; m++) {
	52	Double_t dz=fZ1pitchSPD;
	53	if (m==31 \|\| m==32 \|\| m==63 \|\| m==64 \|\| m==95 \|\| m==96 \|\|
	54	m==127 \|\| m==128) dz=fZ2pitchSPD;
	55	fZSPD[m]=fZSPD[m-1]+dz;
	56	}
	57	for (Int_t m=0; m<fNzSPD; m++) {
	58	Double_t dz=0.5*fZ1pitchSPD;
	59	if (m==31 \|\| m==32 \|\| m==63 \|\| m==64 \|\| m==95 \|\| m==96 \|\|
	60	m==127 \|\| m==128) dz=0.5*fZ2pitchSPD;
	61	fZSPD[m]-=dz;
	62	}
	63
	64	}
	65
	66
	67	void AliITSClusterFinderV2SPD::FindRawClusters(Int_t mod){
	68
	69	//Find clusters V2
	70	SetModule(mod);
	71	FindClustersSPD(fDigits);
	72
	73	}
	74
	75	void AliITSClusterFinderV2SPD::RawdataToClusters(AliRawReader* rawReader, TClonesArray** clusters){
	76	//------------------------------------------------------------
	77	// This function creates ITS clusters from raw data
	78	//------------------------------------------------------------
	79	rawReader->Reset();
	80	AliITSRawStreamSPD inputSPD(rawReader);
	81	FindClustersSPD(&inputSPD, clusters);
	82
	83	}
	84
	85	Int_t AliITSClusterFinderV2SPD::ClustersSPD(AliBin* bins, TClonesArray* digits,TClonesArray* clusters,Int_t maxBins,Int_t nzbins,Int_t iModule,Bool_t rawdata){
	86
	87	//Cluster finder for SPD (from digits and from rawdata)
	88
5c47990a	89	static AliITSRecoParam *repa = NULL;
	90	if(!repa){
	91	repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam();
	92	if(!repa){
	93	repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParamDefault();
	94	AliWarning("Using default AliITSRecoParam class");
	95	}
	96	}
b4704be3	97	const TGeoHMatrix *mT2L=AliITSgeomTGeo::GetTracking2LocalMatrix(iModule);
b4704be3	98
04366a57	99	Int_t nclu=0;
	100	for(Int_t iBin =0; iBin < maxBins;iBin++){
	101	if(bins[iBin].IsUsed()) continue;
	102	Int_t nBins = 0;
	103	Int_t idxBins[200];
	104	FindCluster(iBin,nzbins,bins,nBins,idxBins);
	105	if (nBins == 200){
	106	Error("ClustersSPD","SPD Too big cluster !\n");
	107	continue;
	108	}
	109	Int_t milab[10];
	110	for(Int_t ilab=0;ilab<10;ilab++){
	111	milab[ilab]=-2;
	112	}
	113	if(rawdata){
	114	milab[3]=fNdet[iModule];
	115	}
	116	Int_t ymin,ymax,zmin,zmax;
	117	if(rawdata){
	118	ymin = (idxBins[0] / nzbins) - 1;
	119	ymax = ymin;
	120	zmin = (idxBins[0] % nzbins) - 1;
	121	zmax = zmin;
	122	}
	123	else{
	124	AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[0]);
	125	ymin=dig->GetCoord2();
	126	ymax=ymin;
	127	zmin=dig->GetCoord1();
	128	zmax=zmin;
	129	}
	130	for (Int_t idx = 0; idx < nBins; idx++) {
	131	Int_t iy;
	132	Int_t iz;
	133	if(rawdata){
	134	iy = (idxBins[idx] / nzbins) - 1;
	135	iz = (idxBins[idx] % nzbins) - 1;
	136	}
	137	else{
	138	AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[idx]);
	139	iy = dig->GetCoord2();
	140	iz = dig->GetCoord1();
	141	}
	142	if (ymin > iy) ymin = iy;
	143	if (ymax < iy) ymax = iy;
	144	if (zmin > iz) zmin = iz;
	145	if (zmax < iz) zmax = iz;
	146
	147	}
	148	if(!rawdata){
	149	for(Int_t l=0;l<nBins;l++){
	150	AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[l]);
	151	for(Int_t dlab=0;dlab<10;dlab++){
	152	Int_t digitlab = (dig->GetTracks())[dlab];
	153	if(digitlab<0) continue;
	154	AddLabel(milab,digitlab);
	155	}
	156	if (milab[9]>0) CheckLabels2(milab);
	157	}
	158	CheckLabels2(milab);
	159	}
	160
	161	Int_t idy =0; //max 2 clusters
	162	if((iModule <= fLastSPD1) &&idy<3) idy=3;
163	if((iModule > fLastSPD1) &&idy<4) idy=4;
164	Int_t idz=3;
d6d232ba	165
d6d232ba	166	// Switch the unfolding OFF/ON
5c47990a	167	if(!repa->GetUseUnfoldingInClusterFinderSPD()) {
d6d232ba	168	idy=ymax-ymin+1;
	169	idz=zmax-zmin+1;
	170	}
	171
04366a57	172	for(Int_t iiz=zmin; iiz<=zmax;iiz+=idz){
	173	for(Int_t iiy=ymin;iiy<=ymax;iiy+=idy){
	174
	175	Int_t ndigits=0;
	176	Float_t y=0.,z=0.,q=0.;
	177	for(Int_t idx=0;idx<nBins;idx++){
	178	Int_t iy;
	179	Int_t iz;
	180	if(rawdata){
	181	iy = (idxBins[idx] / nzbins)-1;
	182	iz = (idxBins[idx] % nzbins)-1;
	183	}
	184	else{
	185	AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[idx]);
	186	iy = dig->GetCoord2();
	187	iz = dig->GetCoord1();
	188	}
	189	if(zmax-zmin>=idz \|\| ymax-ymin>=idy){
	190	if(TMath::Abs(iy-iiy)>0.75*idy) continue;
	191	if(TMath::Abs(iz-iiz)>0.75*idz) continue;
	192	}
	193	ndigits++;
	194	Float_t qBin;
	195	if(rawdata) qBin = bins[idxBins[idx]].GetQ();
	196	if(!rawdata){
	197	AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[idx]);
	198	qBin = (Float_t)dig->GetSignal();
	199	}
	200	y+= qBin * fYSPD[iy];
	201	z+= qBin * fZSPD[iz];
	202	q+= qBin;
	203	}// for idx
	204	if(ndigits==0) continue;
	205	y /= q;
	206	z /= q;
	207	y -= fHwSPD;
	208	z -= fHlSPD;
1f3e997f	209
b4704be3	210	Float_t hit[5]; //y,z,sigma(y)^2, sigma(z)^2, charge
	211	{
	212	Double_t loc[3]={y,0.,z},trk[3]={0.,0.,0.};
	213	mT2L->MasterToLocal(loc,trk);
	214	hit[0]=trk[1];
	215	hit[1]=trk[2];
	216	}
04366a57	217	hit[2] = fYpitchSPD*fYpitchSPD/12.;
04366a57	218	hit[3] = fZ1pitchSPD*fZ1pitchSPD/12.;
00a7cc50	219	hit[4] = 1.;
b4704be3	220
04366a57	221	if(!rawdata) milab[3]=fNdet[iModule];
	222	Int_t info[3] = {ymax-ymin+1,zmax-zmin+1,fNlayer[iModule]};
	223	if(!rawdata){
75fb37cc	224	AliITSRecPoint cl(milab,hit,info);
00a7cc50	225	fDetTypeRec->AddRecPoint(cl);
04366a57	226	}
	227	else{
	228	Int_t label[4]={milab[0],milab[1],milab[2],milab[3]};
	229	new (clusters->AddrAt(nclu))
75fb37cc	230	AliITSRecPoint(label, hit,info);
04366a57	231	}
	232	nclu++;
	233	}// for iiy
	234	}// for iiz
	235	}//end for iBin
	236	return nclu;
	237
	238	}
	239
	240
	241
	242
	243	void AliITSClusterFinderV2SPD::FindClustersSPD(AliITSRawStream* input,
	244	TClonesArray** clusters)
	245	{
	246	//------------------------------------------------------------
	247	// Actual SPD cluster finder for raw data
	248	//------------------------------------------------------------
	249	Int_t nClustersSPD = 0;
	250	Int_t kNzBins = fNzSPD + 2;
	251	Int_t kNyBins = fNySPD + 2;
	252	Int_t kMaxBin = kNzBins * kNyBins;
d7d9347b	253	AliBin *binsSPD = new AliBin[kMaxBin];
d7d9347b	254	AliBin *binsSPDInit = new AliBin[kMaxBin];
04366a57	255	AliBin* bins = NULL;
	256
	257	// read raw data input stream
	258	while (kTRUE) {
	259	Bool_t next = input->Next();
	260	if (!next \|\| input->IsNewModule()) {
	261	Int_t iModule = input->GetPrevModuleID();
	262
	263	// when all data from a module was read, search for clusters
	264	if (bins) {
00a7cc50	265	clusters[iModule] = new TClonesArray("AliITSRecPoint");
04366a57	266	Int_t nClusters = ClustersSPD(bins,0,clusters[iModule],kMaxBin,kNzBins,iModule,kTRUE);
04366a57	267	nClustersSPD += nClusters;
d7d9347b	268	bins = NULL;
04366a57	269	}
	270
	271	if (!next) break;
d7d9347b	272	bins = binsSPD;
d7d9347b	273	memcpy(binsSPD,binsSPDInit,sizeof(AliBin)*kMaxBin);
04366a57	274	}
	275
	276	// fill the current digit into the bins array
	277	Int_t index = (input->GetCoord2()+1) * kNzBins + (input->GetCoord1()+1);
	278	bins[index].SetIndex(index);
	279	bins[index].SetMask(1);
	280	bins[index].SetQ(1);
	281	}
	282
d7d9347b	283	delete [] binsSPDInit;
	284	delete [] binsSPD;
	285
5c47990a	286	AliDebug(1,Form("found clusters in ITS SPD: %d", nClustersSPD));
04366a57	287	}
	288
	289
	290
	291	void AliITSClusterFinderV2SPD::FindClustersSPD(TClonesArray *digits) {
	292	//------------------------------------------------------------
	293	// Actual SPD cluster finder
	294	//------------------------------------------------------------
	295
	296
	297	Int_t kNzBins = fNzSPD + 2;
	298	const Int_t kMAXBIN=kNzBins*(fNySPD+2);
	299
	300	Int_t ndigits=digits->GetEntriesFast();
	301	AliBin *bins=new AliBin[kMAXBIN];
	302
	303	Int_t k;
	304	AliITSdigitSPD *d=0;
	305	for (k=0; k<ndigits; k++) {
	306	d=(AliITSdigitSPD*)digits->UncheckedAt(k);
	307	Int_t i=d->GetCoord2()+1; //y
	308	Int_t j=d->GetCoord1()+1;
	309	Int_t index=i*kNzBins+j;
	310	bins[index].SetIndex(k);
	311	bins[index].SetMask(1);
	312	}
	313
d6d232ba	314	Int_t nClustersSPD = ClustersSPD(bins,digits,0,kMAXBIN,kNzBins,fModule,kFALSE);
04366a57	315	delete [] bins;
d6d232ba	316
5c47990a	317	AliDebug(1,Form("found clusters in ITS SPD: %d", nClustersSPD));
04366a57	318	}
	319
	320