[u/mrichter/AliRoot.git] / HLT / src / AliL3Merger.cxx

// Author: Uli Frankenfeld <mailto:franken@fi.uib.no>
//*-- Copyright &copy Uli 

#include "AliL3Logging.h"
#include <math.h>
#include <iostream.h>
#include "AliL3Merger.h"
#include "AliL3Track.h"
#include "AliL3TrackSegmentData.h"
#include "AliL3Transform.h"
#include "AliL3TrackArray.h"

#ifdef use_root //use root ntuple for slow merge
#include <TNtuple.h>
#include <TTree.h>
#include <TFile.h>
#endif

//_____________________________________________________________
// AliL3Merger
//
// The L3 merger base class
//

ClassImp(AliL3Merger)

AliL3Merger::AliL3Merger(){
  //Default constructor
  fTransformer= 0;
  SetArray(0);
}


AliL3Merger::AliL3Merger(Int_t ntrackarrays,Char_t *tracktype){
  //Constructor.
  
  if(strcmp(tracktype,"AliL3Track")==0) fTrackType='t';
  else if(strcmp(tracktype,"AliL3ConfMapTrack")==0) fTrackType='c';
  else if(strcmp(tracktype,"AliL3HoughTrack")==0) fTrackType='h';
  else
    LOG(AliL3Log::kError,"AliL3Merger::AliL3Merger","Track types")
      <<"Unknown tracktype"<<ENDLOG;
  SetArray(ntrackarrays);
  fCurrentTracks=0;

}

AliL3Merger::~AliL3Merger(){
  //Destructor
  DeleteArray();
}

void AliL3Merger::DeleteArray(){
  for(Int_t i=0; i<fNIn;i++)
    delete fInTrack[i];
  delete[] (Byte_t*) fInTrack;
  delete fOutTrack;
}

void AliL3Merger::SetArray(Int_t nin){
  fNIn = nin;
  fInTrack = (AliL3TrackArray **) new Byte_t[fNIn*sizeof(AliL3TrackArray *)];
  for(Int_t i=0; i<fNIn;i++){
    if(fTrackType=='h')
      fInTrack[i] = new AliL3TrackArray("AliL3HoughTrack");
    else
      fInTrack[i] = new AliL3TrackArray("AliL3Track");
    
  }
  if(fTrackType=='h')
    fOutTrack= new AliL3TrackArray("AliL3HoughTrack");
  else
    fOutTrack= new AliL3TrackArray("AliL3Track");
}

void AliL3Merger::Reset(){
  for(Int_t i=0; i<fNIn;i++){
    fInTrack[i]->Reset();
  }
  fOutTrack->Reset();
}

void AliL3Merger::FillTracks(Int_t ntracks, AliL3TrackSegmentData* tr){
  //Read tracks from shared memory (or memory)
  AliL3TrackArray *destination = GetInTracks(fCurrentTracks);
  if(Is2Global())
    destination->FillTracks(ntracks, tr, fSlice, fTransformer);
  else
    destination->FillTracks(ntracks, tr);
}

void AliL3Merger::AddAllTracks(){
  for(Int_t i=0; i<GetNIn();i++){
    AliL3TrackArray *in = GetInTracks(i);
    AliL3TrackArray *out = GetOutTracks();
    out->AddTracks(in);
  }
}

void AliL3Merger::SortGlobalTracks(AliL3Track **tracks, Int_t ntrack){
  AliL3Track **tmp = new AliL3Track*[ntrack]; 
  for(Int_t i=0;i<ntrack;i++) tmp[i] = tracks[i];
  Int_t *t = new Int_t[ntrack];
  for(Int_t i=0;i<ntrack;i++) t[i]=-1;

  for(Int_t j=0;j<ntrack;j++){
    Double_t minr=300;
    Int_t    mini=0;
    for(Int_t i=0;i<ntrack;i++){
     if(!tracks[i]) continue;
       Double_t rr=pow(tracks[i]->GetFirstPointX(),2)+pow(tracks[i]->GetFirstPointY(),2);
       Double_t r=sqrt(rr);
       if(r<minr){
         minr=r;
         mini=i;
       }
    }
    t[j]=mini;
    tracks[mini]=0;
  }
  for(Int_t i=0;i<ntrack;i++) tracks[i] = tmp[t[i]];
  delete[] t;
  delete[] tmp;
}


void AliL3Merger::SortTracks(AliL3Track **tracks, Int_t ntrack){
  AliL3Track **tmp = new  AliL3Track*[ntrack];
  for(Int_t i=0;i<ntrack;i++) tmp[i] = tracks[i];
  Int_t *t = new Int_t[ntrack];
  for(Int_t i=0;i<ntrack;i++) t[i]=-1;

  for(Int_t j=0;j<ntrack;j++){
    Double_t minx=300; 
    Int_t    mini=0;
    for(Int_t i=0;i<ntrack;i++){
     if(!tracks[i]) continue;
       if(tracks[i]->GetFirstPointX()<minx){
         minx=tracks[i]->GetFirstPointX();
         mini=i;
       }     
    }
    t[j]=mini;  
    tracks[mini]=0;
  }
  for(Int_t i=0;i<ntrack;i++) tracks[i] = tmp[t[i]];
  delete[] t;
  delete[] tmp;
}

void AliL3Merger::AddTrack(AliL3TrackArray *mergedtrack,AliL3Track *track){
  AliL3Track *t[1];
  t[0] = track;
  MultiMerge(mergedtrack,t,1);
}

AliL3Track * AliL3Merger::MergeTracks(AliL3TrackArray *mergedtrack,AliL3Track *t0,AliL3Track *t1){
  AliL3Track *t[2];
  t[0] = t0; 
  t[1] = t1;
  SortTracks(t,2);
  return MultiMerge(mergedtrack,t,2);
}

AliL3Track * AliL3Merger::MultiMerge(AliL3TrackArray *mergedtracks,AliL3Track **tracks, Int_t ntrack){
// merge the tracks!!

//check npoints
  Int_t nps = 0;
  for(Int_t i=0;i<ntrack;i++){
    nps+=tracks[i]->GetNHits();
  }
  if(nps>176){
    LOG(AliL3Log::kWarning,"AliL3Merger::MultiMerge","Adding Points")
    <<AliL3Log::kDec<<"Too many Points: "<<nps<<ENDLOG;
    return 0;
  }

  //create new track
  AliL3Track *newtrack = mergedtracks->NextTrack();
  //copy points
  UInt_t nn[176];
  nps = 0;

//  for(Int_t i=0;i<ntrack;i++){
  for(Int_t i=ntrack-1;i>=0;i--){
    memcpy(&nn[nps],tracks[i]->GetHitNumbers(),tracks[i]->GetNHits()*sizeof(UInt_t));
    nps+=tracks[i]->GetNHits();
  }
  AliL3Track *tpf=tracks[0];
  AliL3Track *tpl=tracks[ntrack-1];

  newtrack->SetNHits(nps);
  newtrack->SetHits(nps,nn);
  newtrack->SetFirstPoint(tpf->GetFirstPointX(),tpf->GetFirstPointY(),tpf->GetFirstPointZ());
  newtrack->SetLastPoint(tpl->GetLastPointX(),tpl->GetLastPointY(),tpl->GetLastPointZ());
  newtrack->SetPt(tpf->GetPt());
  newtrack->SetPsi(tpf->GetPsi());
  newtrack->SetTgl(tpf->GetTgl());
  newtrack->SetCharge(tpf->GetCharge());
  return newtrack;
}

void* AliL3Merger::GetNtuple(char *varlist){
#ifdef use_root
  TNtuple* nt = new TNtuple("ntuple","ntuple",varlist);
  return (void*) nt;
#else
  return 0;
#endif
}

void* AliL3Merger::GetNtuple(){
#ifdef use_root
  TNtuple* nt = new TNtuple("ntuple","ntuple",
       "dx:dy:dz:dk:dpsi:dtgl:dq:disx:disy:disz:dis:n0:n1:diff:drx:dry:drz");
  return (void*) nt;
#else
  return 0;
#endif
}

Bool_t AliL3Merger::WriteNtuple(char *filename, void* nt){
#ifdef use_root
  TNtuple *ntuple=(TNtuple *) nt;
  TFile *f = new TFile(filename,"RECREATE");
  ntuple->Write();
  f->Close();
  delete ntuple; 
  return kTRUE; 
#else
  return kFALSE;
#endif
}

void AliL3Merger::FillNtuple(void *nt,AliL3Track *innertrack,AliL3Track *outertrack){
  Float_t data[17];
  if(outertrack->IsPoint()&&innertrack->IsPoint()){
    data[0] =Float_t(innertrack->GetPointX()-outertrack->GetPointX());
    data[1] =Float_t(innertrack->GetPointY()-outertrack->GetPointY());
    data[2] =Float_t(innertrack->GetPointZ()-outertrack->GetPointZ());
    data[3] =Float_t(innertrack->GetKappa()-outertrack->GetKappa());
    Double_t psi= innertrack->GetPointPsi() - outertrack->GetPointPsi();
    if(psi>PI) psi-=2*PI;
    if(psi<-PI)psi+=2*PI;
    data[4] =Float_t(psi);
    data[5] =Float_t(innertrack->GetTgl()-outertrack->GetTgl());
    data[6] =Float_t(innertrack->GetCharge()-outertrack->GetCharge());
    data[7] =Float_t(innertrack->GetLastPointX()-outertrack->GetFirstPointX());
    data[8] =Float_t(innertrack->GetLastPointY()-outertrack->GetFirstPointY());
    data[9] =Float_t(innertrack->GetLastPointZ()-outertrack->GetFirstPointZ());
    data[10] =sqrt(pow(data[7],2)+pow(data[8],2)+pow(data[9],2));
    data[11]= outertrack->GetNHits();
    data[12]= innertrack->GetNHits();
    data[13] = Float_t(TrackDiff(innertrack,outertrack));
#ifdef use_root
    TNtuple *ntuple = (TNtuple *) nt;
    ntuple->Fill(data);
#endif
  }
}

void AliL3Merger::FillNtuple(void *nt,Float_t *data){
#ifdef use_root
    TNtuple *ntuple = (TNtuple *) nt;
    ntuple->Fill(data);
#endif
}

Double_t AliL3Merger::GetAngle(Double_t a1,Double_t a2){
  Double_t da = a1 - a2 +4*PI;
  da = fmod(da,2*PI);
  if(da>PI) da = 2*PI -da;
  return da;
}

void AliL3Merger::SetParameter(Double_t maxy, Double_t maxz, Double_t maxkappa, Double_t maxpsi, Double_t maxtgl){
  fMaxY = maxy;
  fMaxZ = maxz;
  fMaxKappa = maxkappa;
  fMaxPsi = maxpsi;
  fMaxTgl = maxtgl;
}

Bool_t AliL3Merger::IsTrack(AliL3Track *innertrack,AliL3Track *outertrack){

  if(innertrack->GetCharge()!=outertrack->GetCharge()) return kFALSE;
  if( (!innertrack->IsPoint()) || (!outertrack->IsPoint()) )  return kFALSE; 
  if(innertrack->GetNHits()+outertrack->GetNHits()>176) 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;
  //if no rejection up to this point: merge!!
  return kTRUE;
}

Bool_t AliL3Merger::IsRTrack(AliL3Track *innertrack,AliL3Track *outertrack){
  return IsTrack(innertrack,outertrack);
}

Double_t AliL3Merger::TrackDiff(AliL3Track *innertrack,AliL3Track *outertrack){
  Double_t diff =-1;
  Double_t x[4],y[4],z[4],dy[4],dz[4];
  AliL3Track *tracks[2]; 

  tracks[0] = innertrack;
  tracks[1] = outertrack;
  SortGlobalTracks(tracks,2);
  innertrack = tracks[0]; 
  outertrack = tracks[1];

  x[0] = innertrack->GetFirstPointX();
  x[1] = innertrack->GetLastPointX();
  x[2] = outertrack->GetFirstPointX();
  x[3] = outertrack->GetLastPointX();

  y[0] = innertrack->GetFirstPointY();
  y[1] = innertrack->GetLastPointY();
  y[2] = outertrack->GetFirstPointY();
  y[3] = outertrack->GetLastPointY();

  z[0] = innertrack->GetFirstPointZ();
  z[1] = innertrack->GetLastPointZ();
  z[2] = outertrack->GetFirstPointZ();
  z[3] = outertrack->GetLastPointZ();


  outertrack->CalculatePoint(x[0]);
  if(!outertrack->IsPoint()) return diff;
  dy[0] = fabs(y[0] - outertrack->GetPointY());
  dz[0] = fabs(z[0] - outertrack->GetPointZ());

  outertrack->CalculatePoint(x[1]);
  if(!outertrack->IsPoint()) return diff;
  dy[1] = fabs(y[1] - outertrack->GetPointY());
  dz[1] = fabs(z[1] - outertrack->GetPointZ());

  innertrack->CalculatePoint(x[2]);
  if(!innertrack->IsPoint()) return diff;
  dy[2] = fabs(y[2] - innertrack->GetPointY());
  dz[2] = fabs(z[2] - innertrack->GetPointZ());

  innertrack->CalculatePoint(x[3]);
  if(!innertrack->IsPoint()) return diff;
  dy[3] = fabs(y[3] - innertrack->GetPointY());
  dz[3] = fabs(z[3] - innertrack->GetPointZ());

  diff=0;
  for(Int_t i=0;i<4;i++)
    diff+=sqrt(dy[i]*dy[i]+dz[i]*dz[i]);
  return diff; 
}


void AliL3Merger::PrintDiff(AliL3Track *innertrack,AliL3Track *outertrack){
  if(!innertrack->IsPoint()||!outertrack->IsPoint()){
    cerr<<"AliL3Merger::PrintDiff: No Points"<<endl;
    cerr<<"---------------------------"<<endl;
    return;
  } 
  Double_t dx = innertrack->GetPointX()-outertrack->GetPointX();
  Double_t dy = innertrack->GetPointY()-outertrack->GetPointY();
  Double_t dz = innertrack->GetPointZ()-outertrack->GetPointZ();
  Double_t dk = innertrack->GetKappa()-outertrack->GetKappa();
    Double_t dpsi= innertrack->GetPointPsi() - outertrack->GetPointPsi();
    if(dpsi>PI) dpsi-=2*PI;
    if(dpsi<-PI)dpsi+=2*PI;
//  Double_t dpsi = GetAngle(innertrack->GetPointPsi(),outertrack->GetPointPsi());
  Double_t dtgl= innertrack->GetTgl()-outertrack->GetTgl();
  Double_t dq =innertrack->GetCharge()-outertrack->GetCharge();

  fprintf(stderr,"dx: %4f dy: %4f dz: %4f dk: %4f dpsi: %4f dtgl: %4f dq: %4f\n",
      dx,dy,dz,dk,dpsi,dtgl,dq);
cerr<<"---------------------------"<<endl;
//  cerr<<endl; 

}

void AliL3Merger::Print(){
  // print some infos
  for(Int_t i=0; i<fNIn; i++){
    AliL3TrackArray *ttt= GetInTracks(i);
    for(Int_t j =0;j<ttt->GetNTracks();j++){
      AliL3Track *track=ttt->GetCheckedTrack(j);
      if(!track) continue;
      track->CalculateHelix();
//      Double_t angle = atan2(track->GetLastPointY(),track->GetLastPointX());
//      if(angle<0) angle+=PI;
      if(track->CalculatePoint(135))
//      if(!track->CalculateEdgePoint(angle)) cerr<<"**************"<<endl;     
//      if(track->CalculatePoint(track->GetLastPointX()))
//      if(track->CalculatePoint(0))
      {
//      PrintTrack(track);
//      track->CalculateReferencePoint(PI/180.);
      track->CalculateReferencePoint(0.001);
      fprintf(stderr,"npt: %3d dx: %8.5f dy: %8.5f dz: %8.5f\n",
        track->GetNHits(),(float)track->GetPointX()-track->GetPointX(),
                          (float)track->GetPointY()-track->GetPointY(),
                          (float)track->GetPointZ()-track->GetPointZ());

      cerr<<"---------------------------"<<endl;
      }
    }  
  }
}

void AliL3Merger::PrintTrack(AliL3Track *track){
  fprintf(stderr,"npt: %3d pt: %.2f psi: %.2f tgl: %5.2f q: %2d\n",
    track->GetNHits(),track->GetPt(),track->GetPsi(),
    track->GetTgl(),track->GetCharge());
  fprintf(stderr,
    "x1: %6.2f y1: %6.2f z1: %6.2f xl: %6.2f yl: %6.2f zl: %6.2f\n",
    track->GetFirstPointX(),track->GetFirstPointY(),track->GetFirstPointZ(),
    track->GetLastPointX(),track->GetLastPointY(),track->GetLastPointZ());
  if(track->IsPoint()){
    fprintf(stderr,
      "R: %.2f Xc: %.2f Yc: %.2f Xp: %.2f Yp: %.2f Zp: %.2f Psip: %.2f\n",
      track->GetRadius(),track->GetCenterX(),track->GetCenterY(),
      track->GetPointX(),track->GetPointY(),track->GetPointZ(),
      track->GetPointPsi());
  }
}
Commit	Line	Data
b661165c	1	// Author: Uli Frankenfeld <mailto:franken@fi.uib.no>
b661165c	2	//*-- Copyright &copy Uli
108615fc	3
	4	#include "AliL3Logging.h"
	5	#include <math.h>
	6	#include <iostream.h>
	7	#include "AliL3Merger.h"
	8	#include "AliL3Track.h"
	9	#include "AliL3TrackSegmentData.h"
	10	#include "AliL3Transform.h"
	11	#include "AliL3TrackArray.h"
	12
	13	#ifdef use_root //use root ntuple for slow merge
	14	#include <TNtuple.h>
	15	#include <TTree.h>
	16	#include <TFile.h>
	17	#endif
b661165c	18
108615fc	19	//_____________________________________________________________
b661165c	20	// AliL3Merger
108615fc	21	//
	22	// The L3 merger base class
	23	//
	24
	25	ClassImp(AliL3Merger)
	26
	27	AliL3Merger::AliL3Merger(){
	28	//Default constructor
	29	fTransformer= 0;
	30	SetArray(0);
	31	}
	32
	33
5dcd65ea	34	AliL3Merger::AliL3Merger(Int_t ntrackarrays,Char_t *tracktype){
108615fc	35	//Constructor.
5dcd65ea	36
	37	if(strcmp(tracktype,"AliL3Track")==0) fTrackType='t';
	38	else if(strcmp(tracktype,"AliL3ConfMapTrack")==0) fTrackType='c';
	39	else if(strcmp(tracktype,"AliL3HoughTrack")==0) fTrackType='h';
	40	else
	41	LOG(AliL3Log::kError,"AliL3Merger::AliL3Merger","Track types")
	42	<<"Unknown tracktype"<<ENDLOG;
108615fc	43	SetArray(ntrackarrays);
108615fc	44	fCurrentTracks=0;
5dcd65ea	45
108615fc	46	}
	47
	48	AliL3Merger::~AliL3Merger(){
	49	//Destructor
	50	DeleteArray();
	51	}
	52
	53	void AliL3Merger::DeleteArray(){
	54	for(Int_t i=0; i<fNIn;i++)
	55	delete fInTrack[i];
	56	delete[] (Byte_t*) fInTrack;
	57	delete fOutTrack;
	58	}
	59
	60	void AliL3Merger::SetArray(Int_t nin){
	61	fNIn = nin;
	62	fInTrack = (AliL3TrackArray *) new Byte_t[fNInsizeof(AliL3TrackArray *)];
	63	for(Int_t i=0; i<fNIn;i++){
5dcd65ea	64	if(fTrackType=='h')
	65	fInTrack[i] = new AliL3TrackArray("AliL3HoughTrack");
	66	else
	67	fInTrack[i] = new AliL3TrackArray("AliL3Track");
	68
108615fc	69	}
5dcd65ea	70	if(fTrackType=='h')
	71	fOutTrack= new AliL3TrackArray("AliL3HoughTrack");
	72	else
	73	fOutTrack= new AliL3TrackArray("AliL3Track");
108615fc	74	}
	75
	76	void AliL3Merger::Reset(){
	77	for(Int_t i=0; i<fNIn;i++){
	78	fInTrack[i]->Reset();
	79	}
	80	fOutTrack->Reset();
	81	}
	82
	83	void AliL3Merger::FillTracks(Int_t ntracks, AliL3TrackSegmentData* tr){
	84	//Read tracks from shared memory (or memory)
	85	AliL3TrackArray *destination = GetInTracks(fCurrentTracks);
	86	if(Is2Global())
	87	destination->FillTracks(ntracks, tr, fSlice, fTransformer);
	88	else
	89	destination->FillTracks(ntracks, tr);
	90	}
	91
	92	void AliL3Merger::AddAllTracks(){
	93	for(Int_t i=0; i<GetNIn();i++){
	94	AliL3TrackArray *in = GetInTracks(i);
	95	AliL3TrackArray *out = GetOutTracks();
	96	out->AddTracks(in);
	97	}
	98	}
	99
	100	void AliL3Merger::SortGlobalTracks(AliL3Track **tracks, Int_t ntrack){
	101	AliL3Track *tmp = new AliL3Track[ntrack];
	102	for(Int_t i=0;i<ntrack;i++) tmp[i] = tracks[i];
	103	Int_t *t = new Int_t[ntrack];
	104	for(Int_t i=0;i<ntrack;i++) t[i]=-1;
	105
	106	for(Int_t j=0;j<ntrack;j++){
	107	Double_t minr=300;
	108	Int_t mini=0;
	109	for(Int_t i=0;i<ntrack;i++){
	110	if(!tracks[i]) continue;
	111	Double_t rr=pow(tracks[i]->GetFirstPointX(),2)+pow(tracks[i]->GetFirstPointY(),2);
	112	Double_t r=sqrt(rr);
	113	if(r<minr){
	114	minr=r;
	115	mini=i;
	116	}
	117	}
	118	t[j]=mini;
	119	tracks[mini]=0;
	120	}
	121	for(Int_t i=0;i<ntrack;i++) tracks[i] = tmp[t[i]];
	122	delete[] t;
	123	delete[] tmp;
	124	}
	125
	126
	127	void AliL3Merger::SortTracks(AliL3Track **tracks, Int_t ntrack){
	128	AliL3Track *tmp = new AliL3Track[ntrack];
	129	for(Int_t i=0;i<ntrack;i++) tmp[i] = tracks[i];
	130	Int_t *t = new Int_t[ntrack];
	131	for(Int_t i=0;i<ntrack;i++) t[i]=-1;
	132
	133	for(Int_t j=0;j<ntrack;j++){
	134	Double_t minx=300;
	135	Int_t mini=0;
	136	for(Int_t i=0;i<ntrack;i++){
	137	if(!tracks[i]) continue;
138	if(tracks[i]->GetFirstPointX()<minx){
139	minx=tracks[i]->GetFirstPointX();
140	mini=i;
141	}
142	}
143	t[j]=mini;
144	tracks[mini]=0;
145	}
146	for(Int_t i=0;i<ntrack;i++) tracks[i] = tmp[t[i]];
147	delete[] t;
148	delete[] tmp;
149	}
150
151	void AliL3Merger::AddTrack(AliL3TrackArray mergedtrack,AliL3Track track){
152	AliL3Track *t[1];
153	t[0] = track;
154	MultiMerge(mergedtrack,t,1);
155	}
156
157	AliL3Track * AliL3Merger::MergeTracks(AliL3TrackArray mergedtrack,AliL3Track t0,AliL3Track *t1){
158	AliL3Track *t[2];
159	t[0] = t0;
160	t[1] = t1;
161	SortTracks(t,2);
162	return MultiMerge(mergedtrack,t,2);
163	}
164
165	AliL3Track * AliL3Merger::MultiMerge(AliL3TrackArray mergedtracks,AliL3Track *tracks, Int_t ntrack){
166	// merge the tracks!!
167
168	//check npoints
169	Int_t nps = 0;
170	for(Int_t i=0;i<ntrack;i++){
171	nps+=tracks[i]->GetNHits();
172	}
ae97a0b9	173	if(nps>176){
108615fc	174	LOG(AliL3Log::kWarning,"AliL3Merger::MultiMerge","Adding Points")
	175	<<AliL3Log::kDec<<"Too many Points: "<<nps<<ENDLOG;
	176	return 0;
	177	}
	178
	179	//create new track
	180	AliL3Track *newtrack = mergedtracks->NextTrack();
	181	//copy points
ae97a0b9	182	UInt_t nn[176];
108615fc	183	nps = 0;
	184
	185	// for(Int_t i=0;i<ntrack;i++){
	186	for(Int_t i=ntrack-1;i>=0;i--){
	187	memcpy(&nn[nps],tracks[i]->GetHitNumbers(),tracks[i]->GetNHits()*sizeof(UInt_t));
	188	nps+=tracks[i]->GetNHits();
	189	}
	190	AliL3Track *tpf=tracks[0];
	191	AliL3Track *tpl=tracks[ntrack-1];
	192
	193	newtrack->SetNHits(nps);
	194	newtrack->SetHits(nps,nn);
	195	newtrack->SetFirstPoint(tpf->GetFirstPointX(),tpf->GetFirstPointY(),tpf->GetFirstPointZ());
	196	newtrack->SetLastPoint(tpl->GetLastPointX(),tpl->GetLastPointY(),tpl->GetLastPointZ());
	197	newtrack->SetPt(tpf->GetPt());
	198	newtrack->SetPsi(tpf->GetPsi());
	199	newtrack->SetTgl(tpf->GetTgl());
	200	newtrack->SetCharge(tpf->GetCharge());
	201	return newtrack;
	202	}
	203
	204	void* AliL3Merger::GetNtuple(char *varlist){
	205	#ifdef use_root
	206	TNtuple* nt = new TNtuple("ntuple","ntuple",varlist);
	207	return (void*) nt;
	208	#else
	209	return 0;
	210	#endif
	211	}
	212
	213	void* AliL3Merger::GetNtuple(){
	214	#ifdef use_root
	215	TNtuple* nt = new TNtuple("ntuple","ntuple",
	216	"dx:dy:dz:dk:dpsi:dtgl:dq:disx:disy:disz:dis:n0:n1:diff:drx:dry:drz");
	217	return (void*) nt;
	218	#else
	219	return 0;
	220	#endif
	221	}
	222
	223	Bool_t AliL3Merger::WriteNtuple(char filename, void nt){
	224	#ifdef use_root
	225	TNtuple ntuple=(TNtuple ) nt;
	226	TFile *f = new TFile(filename,"RECREATE");
	227	ntuple->Write();
	228	f->Close();
	229	delete ntuple;
	230	return kTRUE;
	231	#else
	232	return kFALSE;
	233	#endif
	234	}
	235
	236	void AliL3Merger::FillNtuple(void nt,AliL3Track innertrack,AliL3Track *outertrack){
	237	Float_t data[17];
	238	if(outertrack->IsPoint()&&innertrack->IsPoint()){
	239	data[0] =Float_t(innertrack->GetPointX()-outertrack->GetPointX());
	240	data[1] =Float_t(innertrack->GetPointY()-outertrack->GetPointY());
	241	data[2] =Float_t(innertrack->GetPointZ()-outertrack->GetPointZ());
	242	data[3] =Float_t(innertrack->GetKappa()-outertrack->GetKappa());
	243	Double_t psi= innertrack->GetPointPsi() - outertrack->GetPointPsi();
	244	if(psi>PI) psi-=2*PI;
	245	if(psi<-PI)psi+=2*PI;
	246	data[4] =Float_t(psi);
247	data[5] =Float_t(innertrack->GetTgl()-outertrack->GetTgl());
248	data[6] =Float_t(innertrack->GetCharge()-outertrack->GetCharge());
249	data[7] =Float_t(innertrack->GetLastPointX()-outertrack->GetFirstPointX());
250	data[8] =Float_t(innertrack->GetLastPointY()-outertrack->GetFirstPointY());
251	data[9] =Float_t(innertrack->GetLastPointZ()-outertrack->GetFirstPointZ());
252	data[10] =sqrt(pow(data[7],2)+pow(data[8],2)+pow(data[9],2));
253	data[11]= outertrack->GetNHits();
254	data[12]= innertrack->GetNHits();
255	data[13] = Float_t(TrackDiff(innertrack,outertrack));
256	#ifdef use_root
257	TNtuple ntuple = (TNtuple ) nt;
258	ntuple->Fill(data);
259	#endif
260	}
261	}
262
263	void AliL3Merger::FillNtuple(void nt,Float_t data){
264	#ifdef use_root
265	TNtuple ntuple = (TNtuple ) nt;
266	ntuple->Fill(data);
267	#endif
268	}
269
270	Double_t AliL3Merger::GetAngle(Double_t a1,Double_t a2){
271	Double_t da = a1 - a2 +4*PI;
272	da = fmod(da,2*PI);
273	if(da>PI) da = 2*PI -da;
274	return da;
275	}
276
277	void AliL3Merger::SetParameter(Double_t maxy, Double_t maxz, Double_t maxkappa, Double_t maxpsi, Double_t maxtgl){
278	fMaxY = maxy;
279	fMaxZ = maxz;
280	fMaxKappa = maxkappa;
281	fMaxPsi = maxpsi;
282	fMaxTgl = maxtgl;
283	}
284
285	Bool_t AliL3Merger::IsTrack(AliL3Track innertrack,AliL3Track outertrack){
286
287	if(innertrack->GetCharge()!=outertrack->GetCharge()) return kFALSE;
288	if( (!innertrack->IsPoint()) \|\| (!outertrack->IsPoint()) ) return kFALSE;
ae97a0b9	289	if(innertrack->GetNHits()+outertrack->GetNHits()>176) return kFALSE;
108615fc	290
	291	if(fabs(innertrack->GetPointY()-outertrack->GetPointY()) >fMaxY) return kFALSE;
	292	if(fabs(innertrack->GetPointZ()-outertrack->GetPointZ()) >fMaxZ) return kFALSE;
	293	if(fabs(innertrack->GetKappa()-outertrack->GetKappa()) >fMaxKappa) return kFALSE;
	294	if(GetAngle(innertrack->GetPointPsi(),outertrack->GetPointPsi()) >fMaxPsi) return kFALSE;
	295	if(fabs(innertrack->GetTgl()-outertrack->GetTgl()) >fMaxTgl) return kFALSE;
	296	//if no rejection up to this point: merge!!
	297	return kTRUE;
	298	}
	299
	300	Bool_t AliL3Merger::IsRTrack(AliL3Track innertrack,AliL3Track outertrack){
	301	return IsTrack(innertrack,outertrack);
	302	}
	303
	304	Double_t AliL3Merger::TrackDiff(AliL3Track innertrack,AliL3Track outertrack){
	305	Double_t diff =-1;
	306	Double_t x[4],y[4],z[4],dy[4],dz[4];
	307	AliL3Track *tracks[2];
	308
	309	tracks[0] = innertrack;
	310	tracks[1] = outertrack;
	311	SortGlobalTracks(tracks,2);
	312	innertrack = tracks[0];
	313	outertrack = tracks[1];
	314
	315	x[0] = innertrack->GetFirstPointX();
	316	x[1] = innertrack->GetLastPointX();
	317	x[2] = outertrack->GetFirstPointX();
	318	x[3] = outertrack->GetLastPointX();
	319
	320	y[0] = innertrack->GetFirstPointY();
	321	y[1] = innertrack->GetLastPointY();
	322	y[2] = outertrack->GetFirstPointY();
	323	y[3] = outertrack->GetLastPointY();
	324
	325	z[0] = innertrack->GetFirstPointZ();
	326	z[1] = innertrack->GetLastPointZ();
	327	z[2] = outertrack->GetFirstPointZ();
	328	z[3] = outertrack->GetLastPointZ();
	329
	330
	331	outertrack->CalculatePoint(x[0]);
	332	if(!outertrack->IsPoint()) return diff;
	333	dy[0] = fabs(y[0] - outertrack->GetPointY());
	334	dz[0] = fabs(z[0] - outertrack->GetPointZ());
	335
	336	outertrack->CalculatePoint(x[1]);
	337	if(!outertrack->IsPoint()) return diff;
	338	dy[1] = fabs(y[1] - outertrack->GetPointY());
	339	dz[1] = fabs(z[1] - outertrack->GetPointZ());
	340
	341	innertrack->CalculatePoint(x[2]);
	342	if(!innertrack->IsPoint()) return diff;
	343	dy[2] = fabs(y[2] - innertrack->GetPointY());
	344	dz[2] = fabs(z[2] - innertrack->GetPointZ());
	345
	346	innertrack->CalculatePoint(x[3]);
	347	if(!innertrack->IsPoint()) return diff;
	348	dy[3] = fabs(y[3] - innertrack->GetPointY());
	349	dz[3] = fabs(z[3] - innertrack->GetPointZ());
	350
	351	diff=0;
	352	for(Int_t i=0;i<4;i++)
	353	diff+=sqrt(dy[i]dy[i]+dz[i]dz[i]);
354	return diff;
355	}
356
357
358
359	void AliL3Merger::PrintDiff(AliL3Track innertrack,AliL3Track outertrack){
360	if(!innertrack->IsPoint()\|\|!outertrack->IsPoint()){
361	cerr<<"AliL3Merger::PrintDiff: No Points"<<endl;
362	cerr<<"---------------------------"<<endl;
363	return;
364	}
365	Double_t dx = innertrack->GetPointX()-outertrack->GetPointX();
366	Double_t dy = innertrack->GetPointY()-outertrack->GetPointY();
367	Double_t dz = innertrack->GetPointZ()-outertrack->GetPointZ();
368	Double_t dk = innertrack->GetKappa()-outertrack->GetKappa();
369	Double_t dpsi= innertrack->GetPointPsi() - outertrack->GetPointPsi();
370	if(dpsi>PI) dpsi-=2*PI;
371	if(dpsi<-PI)dpsi+=2*PI;
372	// Double_t dpsi = GetAngle(innertrack->GetPointPsi(),outertrack->GetPointPsi());
373	Double_t dtgl= innertrack->GetTgl()-outertrack->GetTgl();
374	Double_t dq =innertrack->GetCharge()-outertrack->GetCharge();
375
376	fprintf(stderr,"dx: %4f dy: %4f dz: %4f dk: %4f dpsi: %4f dtgl: %4f dq: %4f\n",
377	dx,dy,dz,dk,dpsi,dtgl,dq);
378	cerr<<"---------------------------"<<endl;
379	// cerr<<endl;
380
381	}
382
383	void AliL3Merger::Print(){
384	// print some infos
385	for(Int_t i=0; i<fNIn; i++){
386	AliL3TrackArray *ttt= GetInTracks(i);
387	for(Int_t j =0;j<ttt->GetNTracks();j++){
388	AliL3Track *track=ttt->GetCheckedTrack(j);
389	if(!track) continue;
390	track->CalculateHelix();
391	// Double_t angle = atan2(track->GetLastPointY(),track->GetLastPointX());
392	// if(angle<0) angle+=PI;
393	if(track->CalculatePoint(135))
394	// if(!track->CalculateEdgePoint(angle)) cerr<<"**************"<<endl;
395	// if(track->CalculatePoint(track->GetLastPointX()))
396	// if(track->CalculatePoint(0))
397	{
398	// PrintTrack(track);
399	// track->CalculateReferencePoint(PI/180.);
400	track->CalculateReferencePoint(0.001);
401	fprintf(stderr,"npt: %3d dx: %8.5f dy: %8.5f dz: %8.5f\n",
402	track->GetNHits(),(float)track->GetPointX()-track->GetPointX(),
403	(float)track->GetPointY()-track->GetPointY(),
404	(float)track->GetPointZ()-track->GetPointZ());
405
406	cerr<<"---------------------------"<<endl;
407	}
408	}
409	}
410	}
411
412	void AliL3Merger::PrintTrack(AliL3Track *track){
413	fprintf(stderr,"npt: %3d pt: %.2f psi: %.2f tgl: %5.2f q: %2d\n",
414	track->GetNHits(),track->GetPt(),track->GetPsi(),
415	track->GetTgl(),track->GetCharge());
416	fprintf(stderr,
417	"x1: %6.2f y1: %6.2f z1: %6.2f xl: %6.2f yl: %6.2f zl: %6.2f\n",
418	track->GetFirstPointX(),track->GetFirstPointY(),track->GetFirstPointZ(),
419	track->GetLastPointX(),track->GetLastPointY(),track->GetLastPointZ());
420	if(track->IsPoint()){
421	fprintf(stderr,
422	"R: %.2f Xc: %.2f Yc: %.2f Xp: %.2f Yp: %.2f Zp: %.2f Psip: %.2f\n",
423	track->GetRadius(),track->GetCenterX(),track->GetCenterY(),
424	track->GetPointX(),track->GetPointY(),track->GetPointZ(),
425	track->GetPointPsi());
426	}
427	}
428
429
430
431