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

//$Id$

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

#include "AliL3StandardIncludes.h"

#include "AliL3Logging.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

/** \class AliL3Merger
<pre>
//_____________________________________________________________
// AliL3Merger
//
// The L3 merger base class
//
</pre>
*/

ClassImp(AliL3Merger)

AliL3Merger::AliL3Merger()
{
  //Default constructor
  fInTrack=0;
  fOutTrack=0;
  fCurrentTracks=0;
  fNIn=0;
}

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

void AliL3Merger::InitMerger(Int_t ntrackarrays,Char_t *tracktype)
{
  //Used to setup all arrays
  
  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;

}

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

void AliL3Merger::SetArray(Int_t nin)
{
  DeleteArray();//Make sure arrays are cleaned 
  
  fNIn = nin;
  fInTrack = new AliL3TrackArray*[fNIn];
  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);
  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>AliL3Transform::GetNRows())
    {
      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[AliL3Transform::GetNRows()];
  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];
  AliL3Track *best = tpf;
  if(tpf->GetNHits()<tpl->GetNHits() && Is2Global())
    best = tpl;//Best means = most points and therefore best fit (in global case)
  
  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(best->GetPt());
  newtrack->SetPsi(best->GetPsi());
  newtrack->SetTgl(best->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>AliL3Transform::Pi()) psi-=AliL3Transform::TwoPi();
      else if(psi<-AliL3Transform::Pi()) psi+=AliL3Transform::TwoPi();
      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));
      data[14]=0;
      data[15]=0;
      data[16]=0;
#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*AliL3Transform::Pi();
  da = fmod(da,AliL3Transform::TwoPi());
  if(da>AliL3Transform::Pi()) da = AliL3Transform::TwoPi()-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()>AliL3Transform::GetNRows()) 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())
    {
      LOG(AliL3Log::kInformational,"AliL3Merger::PrintDiff","No Points")<<ENDLOG;
      //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>AliL3Transform::Pi()) dpsi-=AliL3Transform::TwoPi();
  else if(dpsi<-AliL3Transform::Pi())dpsi+=AliL3Transform::TwoPi();
  //Double_t dpsi = GetAngle(innertrack->GetPointPsi(),outertrack->GetPointPsi());
  Double_t dtgl= innertrack->GetTgl()-outertrack->GetTgl();
  Double_t dq =innertrack->GetCharge()-outertrack->GetCharge();
  
  LOG(AliL3Log::kInformational,"AliL3Merger::PrintDiff","Points") <<"dx: "<<dx<<" dy: "<<dy<<" dz: "<<dz<<" dk: "<<dk<<" dpsi: "<<dpsi<<" dtgl: "<<dtgl<<" dq: "<<dq<<ENDLOG;
  //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;
  
}

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+=AliL3Transform::Pi();
	  if(track->CalculatePoint(135))
	    //      if(!track->CalculateEdgePoint(angle)) cerr<<"**************"<<endl;     
	    //      if(track->CalculatePoint(track->GetLastPointX()))
	    //      if(track->CalculatePoint(0))
	    {
	      //      PrintTrack(track);
	      //      track->CalculateReferencePoint(AliL3Transform::Pi()/180.);
	      track->CalculateReferencePoint(0.001);
	      Float_t dx=(float)track->GetPointX()-track->GetPointX();
	      Float_t dy=(float)track->GetPointY()-track->GetPointY();
	      Float_t dz=(float)track->GetPointZ()-track->GetPointZ();
	      LOG(AliL3Log::kInformational,"AliL3Merger::Print","RefPoint") <<"npt: "<<track->GetNHits()<<" dx: "<<dx<<" dy: "<<dy<<" dz: "<<dz<<ENDLOG;
	      
	      //fprintf(stderr,"npt: %3d dx: %8.5f dy: %8.5f dz: %8.5f\n",track->GetNHits(),dx,dy,dz);
	      //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
4603aa2f	1	//$Id$
4603aa2f	2
b661165c	3	// Author: Uli Frankenfeld <mailto:franken@fi.uib.no>
b661165c	4	//*-- Copyright &copy Uli
108615fc	5
118c26c3	6	#include "AliL3StandardIncludes.h"
118c26c3	7
108615fc	8	#include "AliL3Logging.h"
108615fc	9	#include "AliL3Merger.h"
	10	#include "AliL3Track.h"
	11	#include "AliL3TrackSegmentData.h"
	12	#include "AliL3Transform.h"
	13	#include "AliL3TrackArray.h"
	14
	15	#ifdef use_root //use root ntuple for slow merge
	16	#include <TNtuple.h>
	17	#include <TTree.h>
	18	#include <TFile.h>
	19	#endif
b661165c	20
3e87ef69	21	/** \class AliL3Merger
3e87ef69	22	<pre>
108615fc	23	//_____________________________________________________________
b661165c	24	// AliL3Merger
108615fc	25	//
	26	// The L3 merger base class
	27	//
3e87ef69	28	</pre>
3e87ef69	29	*/
108615fc	30
	31	ClassImp(AliL3Merger)
	32
0a86fbb7	33	AliL3Merger::AliL3Merger()
0a86fbb7	34	{
108615fc	35	//Default constructor
0a86fbb7	36	fInTrack=0;
	37	fOutTrack=0;
	38	fCurrentTracks=0;
	39	fNIn=0;
108615fc	40	}
108615fc	41
0a86fbb7	42	AliL3Merger::~AliL3Merger()
	43	{
	44	//Destructor
	45	DeleteArray();
	46	}
108615fc	47
0a86fbb7	48	void AliL3Merger::InitMerger(Int_t ntrackarrays,Char_t *tracktype)
	49	{
	50	//Used to setup all arrays
5dcd65ea	51
	52	if(strcmp(tracktype,"AliL3Track")==0) fTrackType='t';
	53	else if(strcmp(tracktype,"AliL3ConfMapTrack")==0) fTrackType='c';
	54	else if(strcmp(tracktype,"AliL3HoughTrack")==0) fTrackType='h';
	55	else
	56	LOG(AliL3Log::kError,"AliL3Merger::AliL3Merger","Track types")
	57	<<"Unknown tracktype"<<ENDLOG;
108615fc	58	SetArray(ntrackarrays);
108615fc	59	fCurrentTracks=0;
5dcd65ea	60
108615fc	61	}
108615fc	62
0a86fbb7	63	void AliL3Merger::DeleteArray()
0a86fbb7	64	{
108615fc	65	for(Int_t i=0; i<fNIn;i++)
0a86fbb7	66	{
	67	if(!fInTrack[i]) continue;
	68	delete fInTrack[i];
	69	fInTrack[i]=0;
	70	}
	71	if(fInTrack)
	72	delete[] fInTrack;
	73	if(fOutTrack)
	74	delete fOutTrack;
	75	fInTrack=0;
	76	fOutTrack=0;
108615fc	77	}
108615fc	78
0a86fbb7	79	void AliL3Merger::SetArray(Int_t nin)
	80	{
	81	DeleteArray();//Make sure arrays are cleaned
	82
108615fc	83	fNIn = nin;
0a86fbb7	84	fInTrack = new AliL3TrackArray*[fNIn];
	85	for(Int_t i=0; i<fNIn;i++)
	86	{
	87	if(fTrackType=='h')
	88	fInTrack[i] = new AliL3TrackArray("AliL3HoughTrack");
	89	else
	90	fInTrack[i] = new AliL3TrackArray("AliL3Track");
	91
	92	}
5dcd65ea	93	if(fTrackType=='h')
	94	fOutTrack= new AliL3TrackArray("AliL3HoughTrack");
	95	else
	96	fOutTrack= new AliL3TrackArray("AliL3Track");
108615fc	97	}
108615fc	98
0a86fbb7	99	void AliL3Merger::Reset()
	100	{
	101	for(Int_t i=0; i<fNIn;i++)
	102	{
	103	fInTrack[i]->Reset();
	104	}
108615fc	105	fOutTrack->Reset();
	106	}
	107
0a86fbb7	108	void AliL3Merger::FillTracks(Int_t ntracks, AliL3TrackSegmentData* tr)
0a86fbb7	109	{
108615fc	110	//Read tracks from shared memory (or memory)
0a86fbb7	111
108615fc	112	AliL3TrackArray *destination = GetInTracks(fCurrentTracks);
108615fc	113	if(Is2Global())
494fad94	114	destination->FillTracks(ntracks, tr, fSlice);
108615fc	115	else
	116	destination->FillTracks(ntracks, tr);
	117	}
	118
0a86fbb7	119	void AliL3Merger::AddAllTracks()
	120	{
	121	for(Int_t i=0; i<GetNIn();i++)
	122	{
	123	AliL3TrackArray *in = GetInTracks(i);
	124	AliL3TrackArray *out = GetOutTracks();
	125	out->AddTracks(in);
	126	}
108615fc	127	}
108615fc	128
0a86fbb7	129	void AliL3Merger::SortGlobalTracks(AliL3Track **tracks, Int_t ntrack)
0a86fbb7	130	{
108615fc	131	AliL3Track *tmp = new AliL3Track[ntrack];
	132	for(Int_t i=0;i<ntrack;i++) tmp[i] = tracks[i];
	133	Int_t *t = new Int_t[ntrack];
	134	for(Int_t i=0;i<ntrack;i++) t[i]=-1;
0a86fbb7	135
	136	for(Int_t j=0;j<ntrack;j++)
	137	{
	138	Double_t minr=300;
	139	Int_t mini=0;
	140	for(Int_t i=0;i<ntrack;i++)
	141	{
	142	if(!tracks[i]) continue;
	143	Double_t rr=pow(tracks[i]->GetFirstPointX(),2)+pow(tracks[i]->GetFirstPointY(),2);
	144	Double_t r=sqrt(rr);
	145	if(r<minr){
	146	minr=r;
	147	mini=i;
	148	}
	149	}
	150	t[j]=mini;
	151	tracks[mini]=0;
108615fc	152	}
108615fc	153	for(Int_t i=0;i<ntrack;i++) tracks[i] = tmp[t[i]];
	154	delete[] t;
	155	delete[] tmp;
	156	}
	157
	158
0a86fbb7	159	void AliL3Merger::SortTracks(AliL3Track **tracks, Int_t ntrack)
0a86fbb7	160	{
108615fc	161	AliL3Track *tmp = new AliL3Track[ntrack];
	162	for(Int_t i=0;i<ntrack;i++) tmp[i] = tracks[i];
	163	Int_t *t = new Int_t[ntrack];
	164	for(Int_t i=0;i<ntrack;i++) t[i]=-1;
0a86fbb7	165
	166	for(Int_t j=0;j<ntrack;j++)
	167	{
	168	Double_t minx=300;
	169	Int_t mini=0;
	170	for(Int_t i=0;i<ntrack;i++)
	171	{
	172	if(!tracks[i]) continue;
	173	if(tracks[i]->GetFirstPointX()<minx)
	174	{
	175	minx=tracks[i]->GetFirstPointX();
	176	mini=i;
	177	}
	178	}
	179	t[j]=mini;
	180	tracks[mini]=0;
108615fc	181	}
108615fc	182	for(Int_t i=0;i<ntrack;i++) tracks[i] = tmp[t[i]];
	183	delete[] t;
	184	delete[] tmp;
	185	}
	186
0a86fbb7	187	void AliL3Merger::AddTrack(AliL3TrackArray mergedtrack,AliL3Track track)
0a86fbb7	188	{
108615fc	189	AliL3Track *t[1];
	190	t[0] = track;
	191	MultiMerge(mergedtrack,t,1);
	192	}
	193
0a86fbb7	194	AliL3Track * AliL3Merger::MergeTracks(AliL3TrackArray mergedtrack,AliL3Track t0,AliL3Track *t1)
0a86fbb7	195	{
108615fc	196	AliL3Track *t[2];
	197	t[0] = t0;
	198	t[1] = t1;
	199	SortTracks(t,2);
	200	return MultiMerge(mergedtrack,t,2);
	201	}
	202
0a86fbb7	203	AliL3Track * AliL3Merger::MultiMerge(AliL3TrackArray mergedtracks,AliL3Track *tracks, Int_t ntrack)
	204	{
	205	// merge the tracks!!
	206
	207	//check npoints
108615fc	208	Int_t nps = 0;
0a86fbb7	209	for(Int_t i=0;i<ntrack;i++)
	210	{
	211	nps+=tracks[i]->GetNHits();
	212	}
	213	if(nps>AliL3Transform::GetNRows())
	214	{
	215	LOG(AliL3Log::kWarning,"AliL3Merger::MultiMerge","Adding Points")
	216	<<AliL3Log::kDec<<"Too many Points: "<<nps<<ENDLOG;
	217	return 0;
	218	}
	219
108615fc	220	//create new track
	221	AliL3Track *newtrack = mergedtracks->NextTrack();
	222	//copy points
68a27388	223	UInt_t nn[AliL3Transform::GetNRows()];
108615fc	224	nps = 0;
0a86fbb7	225
	226	// for(Int_t i=0;i<ntrack;i++){
	227	for(Int_t i=ntrack-1;i>=0;i--)
	228	{
	229	memcpy(&nn[nps],tracks[i]->GetHitNumbers(),tracks[i]->GetNHits()*sizeof(UInt_t));
	230	nps+=tracks[i]->GetNHits();
	231	}
108615fc	232	AliL3Track *tpf=tracks[0];
108615fc	233	AliL3Track *tpl=tracks[ntrack-1];
4603aa2f	234	AliL3Track *best = tpf;
	235	if(tpf->GetNHits()<tpl->GetNHits() && Is2Global())
	236	best = tpl;//Best means = most points and therefore best fit (in global case)
	237
108615fc	238	newtrack->SetNHits(nps);
	239	newtrack->SetHits(nps,nn);
	240	newtrack->SetFirstPoint(tpf->GetFirstPointX(),tpf->GetFirstPointY(),tpf->GetFirstPointZ());
	241	newtrack->SetLastPoint(tpl->GetLastPointX(),tpl->GetLastPointY(),tpl->GetLastPointZ());
4603aa2f	242	newtrack->SetPt(best->GetPt());
	243	newtrack->SetPsi(best->GetPsi());
	244	newtrack->SetTgl(best->GetTgl());
108615fc	245	newtrack->SetCharge(tpf->GetCharge());
	246	return newtrack;
	247	}
	248
0a86fbb7	249	void* AliL3Merger::GetNtuple(char *varlist)
0a86fbb7	250	{
108615fc	251	#ifdef use_root
	252	TNtuple* nt = new TNtuple("ntuple","ntuple",varlist);
	253	return (void*) nt;
	254	#else
	255	return 0;
	256	#endif
	257	}
	258
0a86fbb7	259	void* AliL3Merger::GetNtuple()
0a86fbb7	260	{
108615fc	261	#ifdef use_root
108615fc	262	TNtuple* nt = new TNtuple("ntuple","ntuple",
68a27388	263	"dx:dy:dz:dk:dpsi:dtgl:dq:disx:disy:disz:dis:n0:n1:diff:drx:dry:drz");
108615fc	264	return (void*) nt;
	265	#else
	266	return 0;
	267	#endif
	268	}
	269
0a86fbb7	270	Bool_t AliL3Merger::WriteNtuple(char filename, void nt)
0a86fbb7	271	{
108615fc	272	#ifdef use_root
	273	TNtuple ntuple=(TNtuple ) nt;
	274	TFile *f = new TFile(filename,"RECREATE");
	275	ntuple->Write();
	276	f->Close();
	277	delete ntuple;
	278	return kTRUE;
	279	#else
	280	return kFALSE;
	281	#endif
	282	}
	283
0a86fbb7	284	void AliL3Merger::FillNtuple(void nt,AliL3Track innertrack,AliL3Track *outertrack)
0a86fbb7	285	{
108615fc	286	Float_t data[17];
0a86fbb7	287	if(outertrack->IsPoint()&&innertrack->IsPoint())
	288	{
	289	data[0] =Float_t(innertrack->GetPointX()-outertrack->GetPointX());
	290	data[1] =Float_t(innertrack->GetPointY()-outertrack->GetPointY());
	291	data[2] =Float_t(innertrack->GetPointZ()-outertrack->GetPointZ());
	292	data[3] =Float_t(innertrack->GetKappa()-outertrack->GetKappa());
	293	Double_t psi= innertrack->GetPointPsi() - outertrack->GetPointPsi();
5a31e9df	294	if(psi>AliL3Transform::Pi()) psi-=AliL3Transform::TwoPi();
5a31e9df	295	else if(psi<-AliL3Transform::Pi()) psi+=AliL3Transform::TwoPi();
0a86fbb7	296	data[4] =Float_t(psi);
	297	data[5] =Float_t(innertrack->GetTgl()-outertrack->GetTgl());
	298	data[6] =Float_t(innertrack->GetCharge()-outertrack->GetCharge());
	299	data[7] =Float_t(innertrack->GetLastPointX()-outertrack->GetFirstPointX());
	300	data[8] =Float_t(innertrack->GetLastPointY()-outertrack->GetFirstPointY());
	301	data[9] =Float_t(innertrack->GetLastPointZ()-outertrack->GetFirstPointZ());
	302	data[10] =sqrt(pow(data[7],2)+pow(data[8],2)+pow(data[9],2));
	303	data[11]= outertrack->GetNHits();
	304	data[12]= innertrack->GetNHits();
	305	data[13] = Float_t(TrackDiff(innertrack,outertrack));
	306	data[14]=0;
	307	data[15]=0;
	308	data[16]=0;
108615fc	309	#ifdef use_root
0a86fbb7	310	TNtuple ntuple = (TNtuple ) nt;
0a86fbb7	311	ntuple->Fill(data);
108615fc	312	#endif
0a86fbb7	313	}
108615fc	314	}
108615fc	315
0a86fbb7	316	void AliL3Merger::FillNtuple(void nt,Float_t data)
0a86fbb7	317	{
108615fc	318	#ifdef use_root
0a86fbb7	319	TNtuple ntuple = (TNtuple ) nt;
0a86fbb7	320	ntuple->Fill(data);
108615fc	321	#endif
	322	}
	323
0a86fbb7	324	Double_t AliL3Merger::GetAngle(Double_t a1,Double_t a2)
0a86fbb7	325	{
5a31e9df	326	Double_t da = a1 - a2 + 4*AliL3Transform::Pi();
	327	da = fmod(da,AliL3Transform::TwoPi());
	328	if(da>AliL3Transform::Pi()) da = AliL3Transform::TwoPi()-da;
108615fc	329	return da;
	330	}
	331
0a86fbb7	332	void AliL3Merger::SetParameter(Double_t maxy, Double_t maxz, Double_t maxkappa, Double_t maxpsi, Double_t maxtgl)
0a86fbb7	333	{
108615fc	334	fMaxY = maxy;
	335	fMaxZ = maxz;
	336	fMaxKappa = maxkappa;
	337	fMaxPsi = maxpsi;
	338	fMaxTgl = maxtgl;
	339	}
	340
0a86fbb7	341	Bool_t AliL3Merger::IsTrack(AliL3Track innertrack,AliL3Track outertrack)
	342	{
	343
108615fc	344	if(innertrack->GetCharge()!=outertrack->GetCharge()) return kFALSE;
108615fc	345	if( (!innertrack->IsPoint()) \|\| (!outertrack->IsPoint()) ) return kFALSE;
68a27388	346	if(innertrack->GetNHits()+outertrack->GetNHits()>AliL3Transform::GetNRows()) return kFALSE;
0a86fbb7	347
108615fc	348	if(fabs(innertrack->GetPointY()-outertrack->GetPointY()) >fMaxY) return kFALSE;
	349	if(fabs(innertrack->GetPointZ()-outertrack->GetPointZ()) >fMaxZ) return kFALSE;
	350	if(fabs(innertrack->GetKappa()-outertrack->GetKappa()) >fMaxKappa) return kFALSE;
	351	if(GetAngle(innertrack->GetPointPsi(),outertrack->GetPointPsi()) >fMaxPsi) return kFALSE;
	352	if(fabs(innertrack->GetTgl()-outertrack->GetTgl()) >fMaxTgl) return kFALSE;
	353	//if no rejection up to this point: merge!!
	354	return kTRUE;
	355	}
	356
0a86fbb7	357	Bool_t AliL3Merger::IsRTrack(AliL3Track innertrack,AliL3Track outertrack)
0a86fbb7	358	{
108615fc	359	return IsTrack(innertrack,outertrack);
	360	}
	361
0a86fbb7	362	Double_t AliL3Merger::TrackDiff(AliL3Track innertrack,AliL3Track outertrack)
0a86fbb7	363	{
108615fc	364	Double_t diff =-1;
	365	Double_t x[4],y[4],z[4],dy[4],dz[4];
	366	AliL3Track *tracks[2];
0a86fbb7	367
108615fc	368	tracks[0] = innertrack;
	369	tracks[1] = outertrack;
	370	SortGlobalTracks(tracks,2);
	371	innertrack = tracks[0];
	372	outertrack = tracks[1];
4603aa2f	373
108615fc	374	x[0] = innertrack->GetFirstPointX();
	375	x[1] = innertrack->GetLastPointX();
	376	x[2] = outertrack->GetFirstPointX();
	377	x[3] = outertrack->GetLastPointX();
0a86fbb7	378
108615fc	379	y[0] = innertrack->GetFirstPointY();
	380	y[1] = innertrack->GetLastPointY();
	381	y[2] = outertrack->GetFirstPointY();
	382	y[3] = outertrack->GetLastPointY();
	383
	384	z[0] = innertrack->GetFirstPointZ();
	385	z[1] = innertrack->GetLastPointZ();
	386	z[2] = outertrack->GetFirstPointZ();
	387	z[3] = outertrack->GetLastPointZ();
	388
4603aa2f	389
108615fc	390	outertrack->CalculatePoint(x[0]);
	391	if(!outertrack->IsPoint()) return diff;
	392	dy[0] = fabs(y[0] - outertrack->GetPointY());
	393	dz[0] = fabs(z[0] - outertrack->GetPointZ());
4603aa2f	394
108615fc	395	outertrack->CalculatePoint(x[1]);
	396	if(!outertrack->IsPoint()) return diff;
	397	dy[1] = fabs(y[1] - outertrack->GetPointY());
	398	dz[1] = fabs(z[1] - outertrack->GetPointZ());
4603aa2f	399
108615fc	400	innertrack->CalculatePoint(x[2]);
	401	if(!innertrack->IsPoint()) return diff;
	402	dy[2] = fabs(y[2] - innertrack->GetPointY());
	403	dz[2] = fabs(z[2] - innertrack->GetPointZ());
4603aa2f	404
108615fc	405	innertrack->CalculatePoint(x[3]);
	406	if(!innertrack->IsPoint()) return diff;
	407	dy[3] = fabs(y[3] - innertrack->GetPointY());
	408	dz[3] = fabs(z[3] - innertrack->GetPointZ());
	409
	410	diff=0;
	411	for(Int_t i=0;i<4;i++)
	412	diff+=sqrt(dy[i]dy[i]+dz[i]dz[i]);
	413	return diff;
	414	}
	415
c3dd27a3	416	void AliL3Merger::PrintDiff(AliL3Track innertrack,AliL3Track outertrack)
c3dd27a3	417	{
0a86fbb7	418	if(!innertrack->IsPoint()\|\|!outertrack->IsPoint())
	419	{
	420	LOG(AliL3Log::kInformational,"AliL3Merger::PrintDiff","No Points")<<ENDLOG;
	421	//cerr<<"AliL3Merger::PrintDiff: No Points"<<endl;
	422	//cerr<<"---------------------------"<<endl;
	423	return;
	424	}
	425
108615fc	426	Double_t dx = innertrack->GetPointX()-outertrack->GetPointX();
	427	Double_t dy = innertrack->GetPointY()-outertrack->GetPointY();
	428	Double_t dz = innertrack->GetPointZ()-outertrack->GetPointZ();
	429	Double_t dk = innertrack->GetKappa()-outertrack->GetKappa();
c3dd27a3	430	Double_t dpsi= innertrack->GetPointPsi() - outertrack->GetPointPsi();
5a31e9df	431	if(dpsi>AliL3Transform::Pi()) dpsi-=AliL3Transform::TwoPi();
5a31e9df	432	else if(dpsi<-AliL3Transform::Pi())dpsi+=AliL3Transform::TwoPi();
c3dd27a3	433	//Double_t dpsi = GetAngle(innertrack->GetPointPsi(),outertrack->GetPointPsi());
108615fc	434	Double_t dtgl= innertrack->GetTgl()-outertrack->GetTgl();
108615fc	435	Double_t dq =innertrack->GetCharge()-outertrack->GetCharge();
0a86fbb7	436
c3dd27a3	437	LOG(AliL3Log::kInformational,"AliL3Merger::PrintDiff","Points") <<"dx: "<<dx<<" dy: "<<dy<<" dz: "<<dz<<" dk: "<<dk<<" dpsi: "<<dpsi<<" dtgl: "<<dtgl<<" dq: "<<dq<<ENDLOG;
	438	//fprintf(stderr,"dx: %4f dy: %4f dz: %4f dk: %4f dpsi: %4f dtgl: %4f dq: %4f\n",dx,dy,dz,dk,dpsi,dtgl,dq);
	439	//cerr<<"---------------------------"<<endl;
	440
108615fc	441	}
108615fc	442
0a86fbb7	443	void AliL3Merger::Print()
0a86fbb7	444	{
108615fc	445	// print some infos
0a86fbb7	446	for(Int_t i=0; i<fNIn; i++)
	447	{
	448	AliL3TrackArray *ttt= GetInTracks(i);
	449	for(Int_t j =0;j<ttt->GetNTracks();j++)
	450	{
	451	AliL3Track *track=ttt->GetCheckedTrack(j);
	452	if(!track) continue;
	453	track->CalculateHelix();
	454	// Double_t angle = atan2(track->GetLastPointY(),track->GetLastPointX());
5a31e9df	455	// if(angle<0) angle+=AliL3Transform::Pi();
0a86fbb7	456	if(track->CalculatePoint(135))
	457	// if(!track->CalculateEdgePoint(angle)) cerr<<"**************"<<endl;
	458	// if(track->CalculatePoint(track->GetLastPointX()))
	459	// if(track->CalculatePoint(0))
	460	{
	461	// PrintTrack(track);
5a31e9df	462	// track->CalculateReferencePoint(AliL3Transform::Pi()/180.);
0a86fbb7	463	track->CalculateReferencePoint(0.001);
	464	Float_t dx=(float)track->GetPointX()-track->GetPointX();
	465	Float_t dy=(float)track->GetPointY()-track->GetPointY();
	466	Float_t dz=(float)track->GetPointZ()-track->GetPointZ();
	467	LOG(AliL3Log::kInformational,"AliL3Merger::Print","RefPoint") <<"npt: "<<track->GetNHits()<<" dx: "<<dx<<" dy: "<<dy<<" dz: "<<dz<<ENDLOG;
	468
	469	//fprintf(stderr,"npt: %3d dx: %8.5f dy: %8.5f dz: %8.5f\n",track->GetNHits(),dx,dy,dz);
	470	//cerr<<"---------------------------"<<endl;
	471	}
	472	}
	473	}
108615fc	474	}
108615fc	475
0a86fbb7	476	void AliL3Merger::PrintTrack(AliL3Track *track)
0a86fbb7	477	{
108615fc	478	fprintf(stderr,"npt: %3d pt: %.2f psi: %.2f tgl: %5.2f q: %2d\n",
0a86fbb7	479	track->GetNHits(),track->GetPt(),track->GetPsi(),
0a86fbb7	480	track->GetTgl(),track->GetCharge());
108615fc	481	fprintf(stderr,
0a86fbb7	482	"x1: %6.2f y1: %6.2f z1: %6.2f xl: %6.2f yl: %6.2f zl: %6.2f\n",
	483	track->GetFirstPointX(),track->GetFirstPointY(),track->GetFirstPointZ(),
	484	track->GetLastPointX(),track->GetLastPointY(),track->GetLastPointZ());
	485	if(track->IsPoint())
	486	{
	487	fprintf(stderr,
	488	"R: %.2f Xc: %.2f Yc: %.2f Xp: %.2f Yp: %.2f Zp: %.2f Psip: %.2f\n",
	489	track->GetRadius(),track->GetCenterX(),track->GetCenterY(),
	490	track->GetPointX(),track->GetPointY(),track->GetPointZ(),
	491	track->GetPointPsi());
	492	}
108615fc	493	}