[u/mrichter/AliRoot.git] / HLT / hough / AliL3HoughMerger.cxx

// Author: Anders Vestbo <mailto:vestbo@fi.uib.no>
//*-- Copyright &copy ASV 

#include "AliL3StandardIncludes.h"

#include "AliL3Logging.h"
#include "AliL3Transform.h"
#include "AliL3TrackArray.h"
#include "AliL3HoughTrack.h"
#include "AliL3HoughMerger.h"
#include "AliL3HoughTransformer.h"

#if GCCVERSION == 3
using namespace std;
#endif

//_____________________________________________________________
// AliL3HoughMerger
//
// Patch merging class for Hough tracklets

ClassImp(AliL3HoughMerger)

  
AliL3HoughMerger::AliL3HoughMerger()
{
  //Default constructor
}


AliL3HoughMerger::AliL3HoughMerger(Int_t nsubsectors) : AliL3Merger(nsubsectors,"AliL3HoughTrack")
{
  //Constructor
  Is2Global(kFALSE);
  SetParameters(0.001,0.1,0.05);
}


AliL3HoughMerger::~AliL3HoughMerger()
{
 
}

void AliL3HoughMerger::FillTracks(AliL3TrackArray *tracks,Int_t patch)
{
  if(tracks->GetNTracks()==0)
    LOG(AliL3Log::kWarning,"AliL3HoughMerger::FillTracks","Track Array")
      <<"Adding empty track array"<<ENDLOG;
  
  GetInTracks(patch)->AddTracks(tracks,kFALSE);//Copy tracks
  printf("Filling %d tracks to merger\n",tracks->GetNTracks());
}

void AliL3HoughMerger::SetParameters(Double_t maxkappa,Double_t maxpsi,Double_t maxphi0)
{
  fMaxKappa = maxkappa;
  fMaxPsi = maxpsi;
  fMaxPhi0 = maxphi0;
}

Bool_t AliL3HoughMerger::IsTrack(AliL3Track *innertrack,AliL3Track *outertrack)
{
  //Check if the tracks can be merged, called by the track merger
  
  AliL3HoughTrack *tr1 = (AliL3HoughTrack*)innertrack;
  AliL3HoughTrack *tr2 = (AliL3HoughTrack*)outertrack;
  
  if( (!tr1->IsPoint()) || (!tr2->IsPoint()) )  return kFALSE; 
  if(abs(tr1->GetEtaIndex() - tr2->GetEtaIndex()) > 1) return kFALSE;
  if(tr1->GetCharge() != tr2->GetCharge()) return kFALSE;
  if(fabs(tr1->GetPhi0() - tr2->GetPhi0()) > fMaxPhi0) return kFALSE;
  if(fabs(tr1->GetKappa() - tr2->GetKappa()) > fMaxKappa) return kFALSE;
  
  /*
    if( (!tr1->IsPoint()) || (!tr2->IsPoint()) )  return kFALSE; 
    if(fabs(innertrack->GetPointY()-outertrack->GetPointY()) >fMaxY) return kFALSE;
    if(fabs(innertrack->GetPointZ()-outertrack->GetPointZ()) >fMaxZ) return kFALSE;
    if(fabs(innertrack->GetKappa()-outertrack->GetKappa())   >fMaxKappa) return kFALSE;
    if(GetAngle(innertrack->GetPointPsi(),outertrack->GetPointPsi()) >fMaxPsi) return kFALSE;
    if(fabs(innertrack->GetTgl()-outertrack->GetTgl()) >fMaxTgl) return kFALSE;
  */
  
  return kTRUE;//Tracks could be merged
}

void AliL3HoughMerger::AddTrack(AliL3TrackArray *mergedtrack,AliL3Track *track)
{
  AliL3Track *t[1];
  t[0] = track;
  MultiMerge(mergedtrack,t,1);
}

AliL3Track *AliL3HoughMerger::MultiMerge(AliL3TrackArray *mergedtrack,AliL3Track **tracks, Int_t ntrack)
{
  //Called by the track merger

  AliL3HoughTrack *newtrack = (AliL3HoughTrack*)mergedtrack->NextTrack();
  AliL3HoughTrack **trs = (AliL3HoughTrack**)tracks;
  Int_t weight=0;

  //Sum up the total weight:
  for(Int_t i=ntrack-1; i>=0; i--)
    weight += trs[i]->GetWeight();
  
  AliL3HoughTrack *tpt=trs[0];//This is the innermost track
  AliL3HoughTrack *tpl=trs[ntrack-1];
  newtrack->SetTrackParameters(tpt->GetKappa(),tpt->GetPhi0(),weight);
  newtrack->SetEtaIndex(tpt->GetEtaIndex());
  newtrack->SetEta(tpt->GetEta());
  newtrack->SetPsi(tpt->GetPsi());
  newtrack->SetCenterX(tpt->GetCenterX());
  newtrack->SetCenterY(tpt->GetCenterY());
  newtrack->SetFirstPoint(tpt->GetFirstPointX(),tpt->GetFirstPointY(),tpt->GetFirstPointZ());
  newtrack->SetLastPoint(tpl->GetLastPointX(),tpl->GetLastPointY(),tpl->GetLastPointZ());
  newtrack->SetCharge(tpt->GetCharge());
  newtrack->SetRowRange(tpt->GetFirstRow(),tpl->GetLastRow());
  
  return (AliL3Track*)newtrack;

}

void AliL3HoughMerger::MergePatches(Bool_t slow)
{
  //Merge tracks from across the patches.
  
  fSlow = slow;
  AliL3TrackArray *tracks;
  AliL3HoughTrack *track;
  for(Int_t i=0; i<GetNIn(); i++)
    {
      tracks = GetInTracks(i);
      for(Int_t j=0; j<tracks->GetNTracks(); j++)
	{
	  track = (AliL3HoughTrack*)tracks->GetCheckedTrack(j);
	  if(!track) continue;
	  track->UpdateToFirstRow();
	}
    }
  Merge();
  
}

void AliL3HoughMerger::Merge()
{
  Double_t edge0 = PI/18.;
  Double_t edge1 = 2*PI - edge0;
  AliL3TrackArray *ttt = GetOutTracks();
  
  Int_t subsec = GetNIn() - 2; 
  for(Int_t i=subsec;i>=0;i--){
    AliL3TrackArray *tout = GetOutTracks();
    if(i==subsec) tout = GetInTracks(subsec+1);
    AliL3TrackArray *tin = GetInTracks(i);
    Double_t xval = AliL3Transform::Row2X(AliL3Transform::GetLastRow(i));
    Double_t xmax = AliL3Transform::Row2X(AliL3Transform::GetLastRow(i+1));
    Double_t ymax = xval*tan(edge0);
    for(Int_t out=0;out<tout->GetNTracks();out++){
      AliL3Track *outtrack=tout->GetCheckedTrack(out);
      if(!outtrack) continue;
      //outtrack->CalculateHelix();
      outtrack->CalculatePoint(xval);
      if(outtrack->IsPoint()&&fabs(outtrack->GetPointY())>ymax){
	tout->Remove(out);
      }
    }
    //    tout->Compress();
    for(Int_t in=0;in<tin->GetNTracks();in++){
      AliL3Track *intrack=(AliL3Track*)tin->GetTrack(in);
      //intrack->CalculateHelix();
      intrack->CalculatePoint(xval);
    }
    tin->QSort();
    tout->QSort();

    if(fSlow) SlowMerge(ttt,tin,tout,xval);
    else Merge(ttt,tin,tout);

    /*
    //Add the tracks that cross the sector boundary:
    for(Int_t in=0;in<tin->GetNTracks();in++){
      AliL3Track *intrack=(AliL3Track*)tin->GetCheckedTrack(in);
      if(!intrack) continue;
      if(intrack->CalculateEdgePoint(edge0)){
        if(intrack->GetPointX()<xmax ){
          AddTrack(ttt,intrack);
          tin->Remove(in);
        }
      } 
      else if(intrack->CalculateEdgePoint(edge1)){
        if(intrack->GetPointX()<xmax ){
          AddTrack(ttt,intrack);
          tin->Remove(in);
        }
      }
    }
    */
  } // end subsector loop
  LOG(AliL3Log::kInformational,"AliL3HoughMerger::Merge","Result")
    <<AliL3Log::kDec<<"Total Merged Tracks: "<<GetOutTracks()->GetNPresent()
    <<ENDLOG;
}

Int_t AliL3HoughMerger::Merge(AliL3TrackArray* mergedtrack,AliL3TrackArray *tracksin,AliL3TrackArray *tracksout)
{
  
  AliL3Track *tracks[2];
  const Int_t  kNOut=tracksout->GetNTracks();
  const Int_t  kNIn =tracksin->GetNTracks();
  const Int_t  kNMerged =mergedtrack->GetNTracks();

  Bool_t *ismatchedin  = new Bool_t[kNIn];
  for(Int_t in =0;in<kNIn;in++)
    ismatchedin[in]=kFALSE;
  Bool_t *ismatchedout = new Bool_t[kNOut];
  for(Int_t out =0;out<kNOut;out++)
    ismatchedout[out] = kFALSE;
  for(Int_t out =0;out<kNOut;out++){
    AliL3Track *outertrack=(AliL3Track*)tracksout->GetCheckedTrack(out);
    if(!outertrack) continue;
    for(Int_t in =0;in<kNIn;in++){
      if(ismatchedin[in]) continue;
      AliL3Track *innertrack=(AliL3Track*)tracksin->GetCheckedTrack(in);
      if(!innertrack) continue;
      if(outertrack==innertrack) continue;
      
      if(IsTrack(innertrack,outertrack)) //They can be merged
	{
	  tracks[0]=innertrack; tracks[1]=outertrack; 
	  SortTracks(tracks,2); //Sort the tracks according to minimum x-point
	  //if(tracks[0]->GetLastPointX()<tracks[1]->GetFirstPointX()){
	  MultiMerge(mergedtrack,tracks,2);
	  tracksout->Remove(out);
	  tracksin->Remove(in);
	  ismatchedin[in]=kTRUE;
	  ismatchedout[out]=kTRUE;
	  break;
	  // }
	}
    }
  }
  
  Int_t nmerged = mergedtrack->GetNTracks()-kNMerged;
  LOG(AliL3Log::kInformational,"AliL3HoughMerger::Merge","Result")
    <<AliL3Log::kDec<<"Merged Tracks: "<<nmerged<<ENDLOG;
  delete[] ismatchedin;
  delete[] ismatchedout;
  return nmerged;
}

void AliL3HoughMerger::SlowMerge(AliL3TrackArray *mergedtrack,AliL3TrackArray *tracksin,AliL3TrackArray *tracksout,Double_t xval)
{
  void *ntuple=GetNtuple();
  const Int_t  kNOut=tracksout->GetNTracks();
  const Int_t  kNIn =tracksin->GetNTracks();
  const Int_t  kNMerged =mergedtrack->GetNTracks();
  AliL3Track *tracks[2];
  Bool_t merge = kTRUE;
  while(merge){
    Int_t inmin=-1,outmin=-1;
    Double_t min=10;
    for(Int_t out=0;out<kNOut;out++){
    AliL3Track *outertrack=tracksout->GetCheckedTrack(out);
    if(!outertrack) continue;
      for(Int_t in=0;in<kNIn;in++){
        AliL3Track *innertrack=tracksin->GetCheckedTrack(in);
        if(!innertrack) continue;
        Double_t diff = TrackDiff(innertrack,outertrack);
        if(diff>=0&&diff<min){
          min=diff;
          inmin=in;
          outmin=out; 
        }
      } 
    }
    if(inmin>=0&&outmin>=0){
      AliL3Track *outertrack=tracksout->GetTrack(outmin);
      AliL3Track *innertrack=tracksin->GetTrack(inmin);
      tracks[0]=innertrack;
      tracks[1]=outertrack;
      SortTracks(tracks,2);
      Print(tracks);
      MultiMerge(mergedtrack,tracks,2);
      outertrack->CalculatePoint(xval);
      innertrack->CalculatePoint(xval);
      FillNtuple(ntuple,innertrack,outertrack);
      tracksout->Remove(outmin);
      tracksin->Remove(inmin);
      //      tracksout->Compress();
      //      tracksin->Compress(); 
    }
    else merge = kFALSE;
  }
  LOG(AliL3Log::kInformational,"AliL3HoughMerger::SlowMerge","Result")
    <<AliL3Log::kDec<<"Merged Tracks: "
    <<mergedtrack->GetNTracks()-kNMerged<<ENDLOG;
  char name[256] = "ntuple_t.root";
  for(Int_t i=0;i<GetNIn();i++)
    if(tracksin==GetInTracks(i))
      sprintf(name,"ntuple_t_%d.root",i);
  WriteNtuple(name,ntuple);
}

void AliL3HoughMerger::Print(AliL3Track **tracks)
{
  AliL3HoughTrack *tr1 = (AliL3HoughTrack*)tracks[0];
  AliL3HoughTrack *tr2 = (AliL3HoughTrack*)tracks[1];
  Double_t kappadiff = fabs(tr1->GetKappa()-tr2->GetKappa());
  Double_t phi0diff = fabs(tr1->GetPhi0()-tr2->GetPhi0());
  cout << "---------Difference in merged tracks---------"<<endl;
  cout << "Kappa: "<<kappadiff<<" Phi0 : "<<phi0diff<<endl;
  
}
Commit	Line	Data
b1886074	1	// Author: Anders Vestbo <mailto:vestbo@fi.uib.no>
b1886074	2	//*-- Copyright &copy ASV
a1855560	3
e06900d5	4	#include "AliL3StandardIncludes.h"
e06900d5	5
a1855560	6	#include "AliL3Logging.h"
b1886074	7	#include "AliL3Transform.h"
a1855560	8	#include "AliL3TrackArray.h"
	9	#include "AliL3HoughTrack.h"
	10	#include "AliL3HoughMerger.h"
	11	#include "AliL3HoughTransformer.h"
	12
e06900d5	13	#if GCCVERSION == 3
	14	using namespace std;
	15	#endif
	16
b1886074	17	//_____________________________________________________________
	18	// AliL3HoughMerger
	19	//
	20	// Patch merging class for Hough tracklets
	21
a1855560	22	ClassImp(AliL3HoughMerger)
	23
	24
	25	AliL3HoughMerger::AliL3HoughMerger()
	26	{
	27	//Default constructor
a1855560	28	}
	29
	30
b1886074	31	AliL3HoughMerger::AliL3HoughMerger(Int_t nsubsectors) : AliL3Merger(nsubsectors,"AliL3HoughTrack")
a1855560	32	{
a1855560	33	//Constructor
b1886074	34	Is2Global(kFALSE);
b1886074	35	SetParameters(0.001,0.1,0.05);
a1855560	36	}
	37
	38
	39	AliL3HoughMerger::~AliL3HoughMerger()
	40	{
b1886074	41
a1855560	42	}
a1855560	43
b1886074	44	void AliL3HoughMerger::FillTracks(AliL3TrackArray *tracks,Int_t patch)
a1855560	45	{
b1886074	46	if(tracks->GetNTracks()==0)
	47	LOG(AliL3Log::kWarning,"AliL3HoughMerger::FillTracks","Track Array")
	48	<<"Adding empty track array"<<ENDLOG;
	49
	50	GetInTracks(patch)->AddTracks(tracks,kFALSE);//Copy tracks
	51	printf("Filling %d tracks to merger\n",tracks->GetNTracks());
a1855560	52	}
a1855560	53
b1886074	54	void AliL3HoughMerger::SetParameters(Double_t maxkappa,Double_t maxpsi,Double_t maxphi0)
a1855560	55	{
b1886074	56	fMaxKappa = maxkappa;
	57	fMaxPsi = maxpsi;
	58	fMaxPhi0 = maxphi0;
a1855560	59	}
a1855560	60
b1886074	61	Bool_t AliL3HoughMerger::IsTrack(AliL3Track innertrack,AliL3Track outertrack)
a1855560	62	{
b1886074	63	//Check if the tracks can be merged, called by the track merger
	64
	65	AliL3HoughTrack tr1 = (AliL3HoughTrack)innertrack;
	66	AliL3HoughTrack tr2 = (AliL3HoughTrack)outertrack;
	67
	68	if( (!tr1->IsPoint()) \|\| (!tr2->IsPoint()) ) return kFALSE;
	69	if(abs(tr1->GetEtaIndex() - tr2->GetEtaIndex()) > 1) return kFALSE;
	70	if(tr1->GetCharge() != tr2->GetCharge()) return kFALSE;
	71	if(fabs(tr1->GetPhi0() - tr2->GetPhi0()) > fMaxPhi0) return kFALSE;
	72	if(fabs(tr1->GetKappa() - tr2->GetKappa()) > fMaxKappa) return kFALSE;
	73
	74	/*
	75	if( (!tr1->IsPoint()) \|\| (!tr2->IsPoint()) ) return kFALSE;
	76	if(fabs(innertrack->GetPointY()-outertrack->GetPointY()) >fMaxY) return kFALSE;
	77	if(fabs(innertrack->GetPointZ()-outertrack->GetPointZ()) >fMaxZ) return kFALSE;
	78	if(fabs(innertrack->GetKappa()-outertrack->GetKappa()) >fMaxKappa) return kFALSE;
	79	if(GetAngle(innertrack->GetPointPsi(),outertrack->GetPointPsi()) >fMaxPsi) return kFALSE;
	80	if(fabs(innertrack->GetTgl()-outertrack->GetTgl()) >fMaxTgl) return kFALSE;
	81	*/
	82
	83	return kTRUE;//Tracks could be merged
a1855560	84	}
a1855560	85
b1886074	86	void AliL3HoughMerger::AddTrack(AliL3TrackArray mergedtrack,AliL3Track track)
a1855560	87	{
b1886074	88	AliL3Track *t[1];
	89	t[0] = track;
	90	MultiMerge(mergedtrack,t,1);
	91	}
	92
	93	AliL3Track AliL3HoughMerger::MultiMerge(AliL3TrackArray mergedtrack,AliL3Track **tracks, Int_t ntrack)
	94	{
	95	//Called by the track merger
	96
	97	AliL3HoughTrack newtrack = (AliL3HoughTrack)mergedtrack->NextTrack();
	98	AliL3HoughTrack trs = (AliL3HoughTrack)tracks;
	99	Int_t weight=0;
	100
	101	//Sum up the total weight:
	102	for(Int_t i=ntrack-1; i>=0; i--)
	103	weight += trs[i]->GetWeight();
a1855560	104
b1886074	105	AliL3HoughTrack *tpt=trs[0];//This is the innermost track
	106	AliL3HoughTrack *tpl=trs[ntrack-1];
	107	newtrack->SetTrackParameters(tpt->GetKappa(),tpt->GetPhi0(),weight);
	108	newtrack->SetEtaIndex(tpt->GetEtaIndex());
	109	newtrack->SetEta(tpt->GetEta());
	110	newtrack->SetPsi(tpt->GetPsi());
	111	newtrack->SetCenterX(tpt->GetCenterX());
	112	newtrack->SetCenterY(tpt->GetCenterY());
	113	newtrack->SetFirstPoint(tpt->GetFirstPointX(),tpt->GetFirstPointY(),tpt->GetFirstPointZ());
	114	newtrack->SetLastPoint(tpl->GetLastPointX(),tpl->GetLastPointY(),tpl->GetLastPointZ());
	115	newtrack->SetCharge(tpt->GetCharge());
	116	newtrack->SetRowRange(tpt->GetFirstRow(),tpl->GetLastRow());
a1855560	117
b1886074	118	return (AliL3Track*)newtrack;
b1886074	119
a1855560	120	}
a1855560	121
b1886074	122	void AliL3HoughMerger::MergePatches(Bool_t slow)
a1855560	123	{
b1886074	124	//Merge tracks from across the patches.
	125
	126	fSlow = slow;
	127	AliL3TrackArray *tracks;
	128	AliL3HoughTrack *track;
	129	for(Int_t i=0; i<GetNIn(); i++)
a1855560	130	{
b1886074	131	tracks = GetInTracks(i);
b1886074	132	for(Int_t j=0; j<tracks->GetNTracks(); j++)
a1855560	133	{
b1886074	134	track = (AliL3HoughTrack*)tracks->GetCheckedTrack(j);
	135	if(!track) continue;
	136	track->UpdateToFirstRow();
a1855560	137	}
a1855560	138	}
b1886074	139	Merge();
a1855560	140
b1886074	141	}
	142
	143	void AliL3HoughMerger::Merge()
	144	{
	145	Double_t edge0 = PI/18.;
	146	Double_t edge1 = 2*PI - edge0;
	147	AliL3TrackArray *ttt = GetOutTracks();
	148
	149	Int_t subsec = GetNIn() - 2;
	150	for(Int_t i=subsec;i>=0;i--){
	151	AliL3TrackArray *tout = GetOutTracks();
	152	if(i==subsec) tout = GetInTracks(subsec+1);
	153	AliL3TrackArray *tin = GetInTracks(i);
26abc209	154	Double_t xval = AliL3Transform::Row2X(AliL3Transform::GetLastRow(i));
26abc209	155	Double_t xmax = AliL3Transform::Row2X(AliL3Transform::GetLastRow(i+1));
b1886074	156	Double_t ymax = xval*tan(edge0);
	157	for(Int_t out=0;out<tout->GetNTracks();out++){
	158	AliL3Track *outtrack=tout->GetCheckedTrack(out);
	159	if(!outtrack) continue;
	160	//outtrack->CalculateHelix();
	161	outtrack->CalculatePoint(xval);
	162	if(outtrack->IsPoint()&&fabs(outtrack->GetPointY())>ymax){
	163	tout->Remove(out);
	164	}
a1855560	165	}
b1886074	166	// tout->Compress();
	167	for(Int_t in=0;in<tin->GetNTracks();in++){
	168	AliL3Track intrack=(AliL3Track)tin->GetTrack(in);
	169	//intrack->CalculateHelix();
	170	intrack->CalculatePoint(xval);
	171	}
	172	tin->QSort();
	173	tout->QSort();
	174
	175	if(fSlow) SlowMerge(ttt,tin,tout,xval);
	176	else Merge(ttt,tin,tout);
	177
	178	/*
	179	//Add the tracks that cross the sector boundary:
	180	for(Int_t in=0;in<tin->GetNTracks();in++){
	181	AliL3Track intrack=(AliL3Track)tin->GetCheckedTrack(in);
	182	if(!intrack) continue;
	183	if(intrack->CalculateEdgePoint(edge0)){
	184	if(intrack->GetPointX()<xmax ){
	185	AddTrack(ttt,intrack);
	186	tin->Remove(in);
	187	}
	188	}
	189	else if(intrack->CalculateEdgePoint(edge1)){
	190	if(intrack->GetPointX()<xmax ){
	191	AddTrack(ttt,intrack);
	192	tin->Remove(in);
	193	}
	194	}
	195	}
	196	*/
	197	} // end subsector loop
	198	LOG(AliL3Log::kInformational,"AliL3HoughMerger::Merge","Result")
	199	<<AliL3Log::kDec<<"Total Merged Tracks: "<<GetOutTracks()->GetNPresent()
	200	<<ENDLOG;
a1855560	201	}
a1855560	202
b1886074	203	Int_t AliL3HoughMerger::Merge(AliL3TrackArray* mergedtrack,AliL3TrackArray tracksin,AliL3TrackArray tracksout)
a1855560	204	{
b1886074	205
	206	AliL3Track *tracks[2];
	207	const Int_t kNOut=tracksout->GetNTracks();
	208	const Int_t kNIn =tracksin->GetNTracks();
	209	const Int_t kNMerged =mergedtrack->GetNTracks();
	210
	211	Bool_t *ismatchedin = new Bool_t[kNIn];
	212	for(Int_t in =0;in<kNIn;in++)
	213	ismatchedin[in]=kFALSE;
	214	Bool_t *ismatchedout = new Bool_t[kNOut];
	215	for(Int_t out =0;out<kNOut;out++)
	216	ismatchedout[out] = kFALSE;
	217	for(Int_t out =0;out<kNOut;out++){
	218	AliL3Track outertrack=(AliL3Track)tracksout->GetCheckedTrack(out);
	219	if(!outertrack) continue;
	220	for(Int_t in =0;in<kNIn;in++){
	221	if(ismatchedin[in]) continue;
	222	AliL3Track innertrack=(AliL3Track)tracksin->GetCheckedTrack(in);
	223	if(!innertrack) continue;
	224	if(outertrack==innertrack) continue;
	225
	226	if(IsTrack(innertrack,outertrack)) //They can be merged
	227	{
	228	tracks[0]=innertrack; tracks[1]=outertrack;
	229	SortTracks(tracks,2); //Sort the tracks according to minimum x-point
	230	//if(tracks[0]->GetLastPointX()<tracks[1]->GetFirstPointX()){
	231	MultiMerge(mergedtrack,tracks,2);
	232	tracksout->Remove(out);
	233	tracksin->Remove(in);
	234	ismatchedin[in]=kTRUE;
	235	ismatchedout[out]=kTRUE;
	236	break;
	237	// }
	238	}
a1855560	239	}
b1886074	240	}
a1855560	241
b1886074	242	Int_t nmerged = mergedtrack->GetNTracks()-kNMerged;
	243	LOG(AliL3Log::kInformational,"AliL3HoughMerger::Merge","Result")
	244	<<AliL3Log::kDec<<"Merged Tracks: "<<nmerged<<ENDLOG;
	245	delete[] ismatchedin;
	246	delete[] ismatchedout;
	247	return nmerged;
	248	}
	249
	250	void AliL3HoughMerger::SlowMerge(AliL3TrackArray mergedtrack,AliL3TrackArray tracksin,AliL3TrackArray *tracksout,Double_t xval)
	251	{
	252	void *ntuple=GetNtuple();
	253	const Int_t kNOut=tracksout->GetNTracks();
	254	const Int_t kNIn =tracksin->GetNTracks();
	255	const Int_t kNMerged =mergedtrack->GetNTracks();
	256	AliL3Track *tracks[2];
	257	Bool_t merge = kTRUE;
	258	while(merge){
	259	Int_t inmin=-1,outmin=-1;
	260	Double_t min=10;
	261	for(Int_t out=0;out<kNOut;out++){
	262	AliL3Track *outertrack=tracksout->GetCheckedTrack(out);
	263	if(!outertrack) continue;
	264	for(Int_t in=0;in<kNIn;in++){
	265	AliL3Track *innertrack=tracksin->GetCheckedTrack(in);
	266	if(!innertrack) continue;
	267	Double_t diff = TrackDiff(innertrack,outertrack);
	268	if(diff>=0&&diff<min){
	269	min=diff;
	270	inmin=in;
	271	outmin=out;
	272	}
	273	}
	274	}
	275	if(inmin>=0&&outmin>=0){
	276	AliL3Track *outertrack=tracksout->GetTrack(outmin);
	277	AliL3Track *innertrack=tracksin->GetTrack(inmin);
	278	tracks[0]=innertrack;
	279	tracks[1]=outertrack;
	280	SortTracks(tracks,2);
	281	Print(tracks);
	282	MultiMerge(mergedtrack,tracks,2);
	283	outertrack->CalculatePoint(xval);
	284	innertrack->CalculatePoint(xval);
	285	FillNtuple(ntuple,innertrack,outertrack);
	286	tracksout->Remove(outmin);
	287	tracksin->Remove(inmin);
	288	// tracksout->Compress();
	289	// tracksin->Compress();
	290	}
	291	else merge = kFALSE;
	292	}
	293	LOG(AliL3Log::kInformational,"AliL3HoughMerger::SlowMerge","Result")
	294	<<AliL3Log::kDec<<"Merged Tracks: "
	295	<<mergedtrack->GetNTracks()-kNMerged<<ENDLOG;
	296	char name[256] = "ntuple_t.root";
	297	for(Int_t i=0;i<GetNIn();i++)
	298	if(tracksin==GetInTracks(i))
	299	sprintf(name,"ntuple_t_%d.root",i);
	300	WriteNtuple(name,ntuple);
	301	}
	302
	303	void AliL3HoughMerger::Print(AliL3Track **tracks)
	304	{
	305	AliL3HoughTrack tr1 = (AliL3HoughTrack)tracks[0];
306	AliL3HoughTrack tr2 = (AliL3HoughTrack)tracks[1];
307	Double_t kappadiff = fabs(tr1->GetKappa()-tr2->GetKappa());
308	Double_t phi0diff = fabs(tr1->GetPhi0()-tr2->GetPhi0());
309	cout << "---------Difference in merged tracks---------"<<endl;
310	cout << "Kappa: "<<kappadiff<<" Phi0 : "<<phi0diff<<endl;
a1855560	311
a1855560	312	}