[u/mrichter/AliRoot.git] / HLT / TPCLib / AliHLTTPCMerger.cxx

//$Id$

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

#include "AliHLTTPCStandardIncludes.h"

#include "AliHLTTPCLogging.h"
#include "AliHLTTPCMerger.h"
#include "AliHLTTPCTrack.h"
#include "AliHLTTPCTrackSegmentData.h"
#include "AliHLTTPCTransform.h"
#include "AliHLTTPCTrackArray.h"

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

/** \class AliHLTTPCMerger
<pre>
//_____________________________________________________________
// AliHLTTPCMerger
//
// The HLTTPC merger base class
//
</pre>
*/

#if __GNUC__ >= 3
using namespace std;
#endif

ClassImp(AliHLTTPCMerger)

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

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

void AliHLTTPCMerger::InitMerger(Int_t ntrackarrays,Char_t *tracktype)
{
  //Used to setup all arrays
  
  if(strcmp(tracktype,"AliHLTTPCTrack")==0) fTrackType='t';
  else if(strcmp(tracktype,"AliHLTTPCConfMapTrack")==0) fTrackType='c';
#ifdef INCLUDE_TPC_HOUGH
  else if(strcmp(tracktype,"AliHLTTPCHoughTrack")==0) fTrackType='h';
#endif
  else
    LOG(AliHLTTPCLog::kError,"AliHLTTPCMerger::AliHLTTPCMerger","Track types")
      <<"Unknown tracktype"<<ENDLOG;
  SetArray(ntrackarrays);
  fCurrentTracks=0;

}

void AliHLTTPCMerger::DeleteArray()
{
  //delete arrays
  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 AliHLTTPCMerger::SetArray(Int_t nin)
{ 
  //set arrays
  DeleteArray();//Make sure arrays are cleaned 
  
  fNIn = nin;
  fInTrack = new AliHLTTPCTrackArray*[fNIn];
  for(Int_t i=0; i<fNIn;i++)
    {
#ifdef INCLUDE_TPC_HOUGH
      if(fTrackType=='h')
	fInTrack[i] = new AliHLTTPCTrackArray("AliHLTTPCHoughTrack");
      else
#endif
	fInTrack[i] = new AliHLTTPCTrackArray("AliHLTTPCTrack");
      
    }
#ifdef INCLUDE_TPC_HOUGH
  if(fTrackType=='h')
    fOutTrack= new AliHLTTPCTrackArray("AliHLTTPCHoughTrack");
  else
#endif
    fOutTrack= new AliHLTTPCTrackArray("AliHLTTPCTrack");
}

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

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

void AliHLTTPCMerger::AddAllTracks()
{ 
  //add all tracks
  for(Int_t i=0; i<GetNIn();i++)
    {
      AliHLTTPCTrackArray *in = GetInTracks(i);
      AliHLTTPCTrackArray *out = GetOutTracks();
      out->AddTracks(in);
    }
}

void AliHLTTPCMerger::SortGlobalTracks(AliHLTTPCTrack **tracks, Int_t ntrack)
{ 
  //sort global tracks
  AliHLTTPCTrack **tmp = new AliHLTTPCTrack*[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 AliHLTTPCMerger::SortTracks(AliHLTTPCTrack **tracks, Int_t ntrack) const
{ 
  //sort tracks
  AliHLTTPCTrack **tmp = new  AliHLTTPCTrack*[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 AliHLTTPCMerger::AddTrack(AliHLTTPCTrackArray *mergedtrack,AliHLTTPCTrack *track)
{ 
  // add tracks
  AliHLTTPCTrack *t[1];
  t[0] = track;
  MultiMerge(mergedtrack,t,1);
}

AliHLTTPCTrack * AliHLTTPCMerger::MergeTracks(AliHLTTPCTrackArray *mergedtrack,AliHLTTPCTrack *t0,AliHLTTPCTrack *t1)
{ 
  //merge tracks
  AliHLTTPCTrack *t[2];
  t[0] = t0; 
  t[1] = t1;
  SortTracks(t,2);
  return MultiMerge(mergedtrack,t,2);
}

AliHLTTPCTrack * AliHLTTPCMerger::MultiMerge(AliHLTTPCTrackArray *mergedtracks,AliHLTTPCTrack **tracks, Int_t ntrack)
{
  //multi merge the tracks
  //check npoints
  Int_t nps = 0;
  for(Int_t i=0;i<ntrack;i++)
    {
      nps+=tracks[i]->GetNHits();
    }
  if(nps>AliHLTTPCTransform::GetNRows())
    {
      LOG(AliHLTTPCLog::kWarning,"AliHLTTPCMerger::MultiMerge","Adding Points")
	<<AliHLTTPCLog::kDec<<"Too many Points: "<<nps<<ENDLOG;
      return 0;
    }
  
  //create new track
  AliHLTTPCTrack *newtrack = mergedtracks->NextTrack();
  //copy points
  UInt_t * nn = new UInt_t[AliHLTTPCTransform::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();
    }
  AliHLTTPCTrack *tpf=tracks[0];
  AliHLTTPCTrack *tpl=tracks[ntrack-1];
  AliHLTTPCTrack *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());
  delete [] nn;
  return newtrack;
}

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

void* AliHLTTPCMerger::GetNtuple() const
{ 
  //get ntuple
#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 AliHLTTPCMerger::WriteNtuple(char *filename, void* nt) const
{ 
  //write ntuple
#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 AliHLTTPCMerger::FillNtuple(void *nt,AliHLTTPCTrack *innertrack,AliHLTTPCTrack *outertrack)
{ 
  //fill ntuple
  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>AliHLTTPCTransform::Pi()) psi-=AliHLTTPCTransform::TwoPi();
      else if(psi<-AliHLTTPCTransform::Pi()) psi+=AliHLTTPCTransform::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 AliHLTTPCMerger::FillNtuple(void *nt,Float_t *data) const
{ 
  //fill ntuple
#ifdef use_root
  TNtuple *ntuple = (TNtuple *) nt;
  ntuple->Fill(data);
#endif
}

Double_t AliHLTTPCMerger::GetAngle(Double_t a1,Double_t a2)
{ 
  //get angle
  Double_t da = a1 - a2 + 4*AliHLTTPCTransform::Pi();
  da = fmod(da,AliHLTTPCTransform::TwoPi());
  if(da>AliHLTTPCTransform::Pi()) da = AliHLTTPCTransform::TwoPi()-da;
  return da;
}

void AliHLTTPCMerger::SetParameter(Double_t maxy, Double_t maxz, Double_t maxkappa, Double_t maxpsi, Double_t maxtgl)
{ 
  //set parameters for merger
  fMaxY = maxy;
  fMaxZ = maxz;
  fMaxKappa = maxkappa;
  fMaxPsi = maxpsi;
  fMaxTgl = maxtgl;
}

Bool_t AliHLTTPCMerger::IsTrack(AliHLTTPCTrack *innertrack,AliHLTTPCTrack *outertrack)
{
  //is track to be merged
  if(innertrack->GetCharge()!=outertrack->GetCharge()) return kFALSE;
  if( (!innertrack->IsPoint()) || (!outertrack->IsPoint()) )  return kFALSE; 
  if(innertrack->GetNHits()+outertrack->GetNHits()>AliHLTTPCTransform::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 AliHLTTPCMerger::IsRTrack(AliHLTTPCTrack *innertrack,AliHLTTPCTrack *outertrack)
{ 
  //same as IsTrack
  return IsTrack(innertrack,outertrack);
}

Double_t AliHLTTPCMerger::TrackDiff(AliHLTTPCTrack *innertrack,AliHLTTPCTrack *outertrack)
{ 
  //return track difference
  Double_t diff =-1;
  Double_t x[4],y[4],z[4],dy[4],dz[4];
  AliHLTTPCTrack *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 AliHLTTPCMerger::PrintDiff(AliHLTTPCTrack *innertrack,AliHLTTPCTrack *outertrack)
{ 
  // print difference
  if(!innertrack->IsPoint()||!outertrack->IsPoint())
    {
      LOG(AliHLTTPCLog::kInformational,"AliHLTTPCMerger::PrintDiff","No Points")<<ENDLOG;
      //cerr<<"AliHLTTPCMerger::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>AliHLTTPCTransform::Pi()) dpsi-=AliHLTTPCTransform::TwoPi();
  else if(dpsi<-AliHLTTPCTransform::Pi())dpsi+=AliHLTTPCTransform::TwoPi();
  //Double_t dpsi = GetAngle(innertrack->GetPointPsi(),outertrack->GetPointPsi());
  Double_t dtgl= innertrack->GetTgl()-outertrack->GetTgl();
  Double_t dq =innertrack->GetCharge()-outertrack->GetCharge();
  
  LOG(AliHLTTPCLog::kInformational,"AliHLTTPCMerger::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 AliHLTTPCMerger::Print()
{
  // print some infos
  for(Int_t i=0; i<fNIn; i++)
    {
      AliHLTTPCTrackArray *ttt= GetInTracks(i);
      for(Int_t j =0;j<ttt->GetNTracks();j++)
	{
	  AliHLTTPCTrack *track=ttt->GetCheckedTrack(j);
	  if(!track) continue;
	  track->CalculateHelix();
	  //      Double_t angle = atan2(track->GetLastPointY(),track->GetLastPointX());
	  //      if(angle<0) angle+=AliHLTTPCTransform::Pi();
	  if(track->CalculatePoint(135))
	    //      if(!track->CalculateEdgePoint(angle)) cerr<<"**************"<<endl;     
	    //      if(track->CalculatePoint(track->GetLastPointX()))
	    //      if(track->CalculatePoint(0))
	    {
	      //      PrintTrack(track);
	      //      track->CalculateReferencePoint(AliHLTTPCTransform::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(AliHLTTPCLog::kInformational,"AliHLTTPCMerger::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 AliHLTTPCMerger::PrintTrack(AliHLTTPCTrack *track)
{ 
  //print track info
  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
a6c02c85	1	//$Id$
	2
	3	// Author: Uli Frankenfeld <mailto:franken@fi.uib.no>
	4	//*-- Copyright &copy Uli
	5
	6	#include "AliHLTTPCStandardIncludes.h"
	7
	8	#include "AliHLTTPCLogging.h"
	9	#include "AliHLTTPCMerger.h"
	10	#include "AliHLTTPCTrack.h"
	11	#include "AliHLTTPCTrackSegmentData.h"
	12	#include "AliHLTTPCTransform.h"
	13	#include "AliHLTTPCTrackArray.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
	20
	21	/** \class AliHLTTPCMerger
	22	<pre>
	23	//_____________________________________________________________
	24	// AliHLTTPCMerger
	25	//
	26	// The HLTTPC merger base class
	27	//
	28	</pre>
	29	*/
	30
	31	#if __GNUC__ >= 3
	32	using namespace std;
	33	#endif
	34
	35	ClassImp(AliHLTTPCMerger)
	36
	37	AliHLTTPCMerger::AliHLTTPCMerger()
	38	{
	39	//Default constructor
	40	fInTrack=0;
	41	fOutTrack=0;
	42	fCurrentTracks=0;
	43	fNIn=0;
	44	}
	45
	46	AliHLTTPCMerger::~AliHLTTPCMerger()
	47	{
	48	//Destructor
	49	DeleteArray();
	50	}
	51
	52	void AliHLTTPCMerger::InitMerger(Int_t ntrackarrays,Char_t *tracktype)
	53	{
	54	//Used to setup all arrays
	55
	56	if(strcmp(tracktype,"AliHLTTPCTrack")==0) fTrackType='t';
	57	else if(strcmp(tracktype,"AliHLTTPCConfMapTrack")==0) fTrackType='c';
	58	#ifdef INCLUDE_TPC_HOUGH
	59	else if(strcmp(tracktype,"AliHLTTPCHoughTrack")==0) fTrackType='h';
	60	#endif
	61	else
	62	LOG(AliHLTTPCLog::kError,"AliHLTTPCMerger::AliHLTTPCMerger","Track types")
	63	<<"Unknown tracktype"<<ENDLOG;
	64	SetArray(ntrackarrays);
65	fCurrentTracks=0;
66
67	}
68
69	void AliHLTTPCMerger::DeleteArray()
70	{
71	//delete arrays
72	for(Int_t i=0; i<fNIn;i++)
73	{
74	if(!fInTrack[i]) continue;
75	delete fInTrack[i];
76	fInTrack[i]=0;
77	}
78	if(fInTrack)
79	delete[] fInTrack;
80	if(fOutTrack)
81	delete fOutTrack;
82	fInTrack=0;
83	fOutTrack=0;
84	}
85
86	void AliHLTTPCMerger::SetArray(Int_t nin)
87	{
88	//set arrays
89	DeleteArray();//Make sure arrays are cleaned
90
91	fNIn = nin;
92	fInTrack = new AliHLTTPCTrackArray*[fNIn];
93	for(Int_t i=0; i<fNIn;i++)
94	{
95	#ifdef INCLUDE_TPC_HOUGH
96	if(fTrackType=='h')
97	fInTrack[i] = new AliHLTTPCTrackArray("AliHLTTPCHoughTrack");
98	else
99	#endif
100	fInTrack[i] = new AliHLTTPCTrackArray("AliHLTTPCTrack");
101
102	}
103	#ifdef INCLUDE_TPC_HOUGH
104	if(fTrackType=='h')
105	fOutTrack= new AliHLTTPCTrackArray("AliHLTTPCHoughTrack");
106	else
107	#endif
108	fOutTrack= new AliHLTTPCTrackArray("AliHLTTPCTrack");
109	}
110
111	void AliHLTTPCMerger::Reset()
112	{
113	//reset
114	for(Int_t i=0; i<fNIn;i++)
115	{
116	fInTrack[i]->Reset();
117	}
118	fOutTrack->Reset();
119	}
120
121	void AliHLTTPCMerger::FillTracks(Int_t ntracks, AliHLTTPCTrackSegmentData* tr)
122	{
123	//Read tracks from shared memory (or memory)
124	AliHLTTPCTrackArray *destination = GetInTracks(fCurrentTracks);
125	if(Is2Global())
126	destination->FillTracks(ntracks, tr, fSlice);
127	else
128	destination->FillTracks(ntracks, tr);
129	}
130
131	void AliHLTTPCMerger::AddAllTracks()
132	{
133	//add all tracks
134	for(Int_t i=0; i<GetNIn();i++)
135	{
136	AliHLTTPCTrackArray *in = GetInTracks(i);
137	AliHLTTPCTrackArray *out = GetOutTracks();
138	out->AddTracks(in);
139	}
140	}
141
142	void AliHLTTPCMerger::SortGlobalTracks(AliHLTTPCTrack **tracks, Int_t ntrack)
143	{
144	//sort global tracks
145	AliHLTTPCTrack *tmp = new AliHLTTPCTrack[ntrack];
146	for(Int_t i=0;i<ntrack;i++) tmp[i] = tracks[i];
147	Int_t *t = new Int_t[ntrack];
148	for(Int_t i=0;i<ntrack;i++) t[i]=-1;
149
150	for(Int_t j=0;j<ntrack;j++)
151	{
152	Double_t minr=300;
153	Int_t mini=0;
154	for(Int_t i=0;i<ntrack;i++)
155	{
156	if(!tracks[i]) continue;
157	Double_t rr=pow(tracks[i]->GetFirstPointX(),2)+pow(tracks[i]->GetFirstPointY(),2);
158	Double_t r=sqrt(rr);
159	if(r<minr){
160	minr=r;
161	mini=i;
162	}
163	}
164	t[j]=mini;
165	tracks[mini]=0;
166	}
167	for(Int_t i=0;i<ntrack;i++) tracks[i] = tmp[t[i]];
168	delete[] t;
169	delete[] tmp;
170	}
171
172	void AliHLTTPCMerger::SortTracks(AliHLTTPCTrack **tracks, Int_t ntrack) const
173	{
174	//sort tracks
175	AliHLTTPCTrack *tmp = new AliHLTTPCTrack[ntrack];
176	for(Int_t i=0;i<ntrack;i++) tmp[i] = tracks[i];
177	Int_t *t = new Int_t[ntrack];
178	for(Int_t i=0;i<ntrack;i++) t[i]=-1;
179
180	for(Int_t j=0;j<ntrack;j++)
181	{
182	Double_t minx=300;
183	Int_t mini=0;
184	for(Int_t i=0;i<ntrack;i++)
185	{
186	if(!tracks[i]) continue;
187	if(tracks[i]->GetFirstPointX()<minx)
188	{
189	minx=tracks[i]->GetFirstPointX();
190	mini=i;
191	}
192	}
193	t[j]=mini;
194	tracks[mini]=0;
195	}
196	for(Int_t i=0;i<ntrack;i++) tracks[i] = tmp[t[i]];
197	delete[] t;
198	delete[] tmp;
199	}
200
201	void AliHLTTPCMerger::AddTrack(AliHLTTPCTrackArray mergedtrack,AliHLTTPCTrack track)
202	{
203	// add tracks
204	AliHLTTPCTrack *t[1];
205	t[0] = track;
206	MultiMerge(mergedtrack,t,1);
207	}
208
209	AliHLTTPCTrack * AliHLTTPCMerger::MergeTracks(AliHLTTPCTrackArray mergedtrack,AliHLTTPCTrack t0,AliHLTTPCTrack *t1)
210	{
211	//merge tracks
212	AliHLTTPCTrack *t[2];
213	t[0] = t0;
214	t[1] = t1;
215	SortTracks(t,2);
216	return MultiMerge(mergedtrack,t,2);
217	}
218
219	AliHLTTPCTrack * AliHLTTPCMerger::MultiMerge(AliHLTTPCTrackArray mergedtracks,AliHLTTPCTrack *tracks, Int_t ntrack)
220	{
221	//multi merge the tracks
222	//check npoints
223	Int_t nps = 0;
224	for(Int_t i=0;i<ntrack;i++)
225	{
226	nps+=tracks[i]->GetNHits();
227	}
228	if(nps>AliHLTTPCTransform::GetNRows())
229	{
230	LOG(AliHLTTPCLog::kWarning,"AliHLTTPCMerger::MultiMerge","Adding Points")
231	<<AliHLTTPCLog::kDec<<"Too many Points: "<<nps<<ENDLOG;
232	return 0;
233	}
234
235	//create new track
236	AliHLTTPCTrack *newtrack = mergedtracks->NextTrack();
237	//copy points
238	UInt_t * nn = new UInt_t[AliHLTTPCTransform::GetNRows()];
239	nps = 0;
240
241	// for(Int_t i=0;i<ntrack;i++){
242	for(Int_t i=ntrack-1;i>=0;i--)
243	{
244	memcpy(&nn[nps],tracks[i]->GetHitNumbers(),tracks[i]->GetNHits()*sizeof(UInt_t));
245	nps+=tracks[i]->GetNHits();
246	}
247	AliHLTTPCTrack *tpf=tracks[0];
248	AliHLTTPCTrack *tpl=tracks[ntrack-1];
249	AliHLTTPCTrack *best = tpf;
250	if(tpf->GetNHits()<tpl->GetNHits() && Is2Global())
251	best = tpl;//Best means = most points and therefore best fit (in global case)
252
253	newtrack->SetNHits(nps);
254	newtrack->SetHits(nps,nn);
255	newtrack->SetFirstPoint(tpf->GetFirstPointX(),tpf->GetFirstPointY(),tpf->GetFirstPointZ());
256	newtrack->SetLastPoint(tpl->GetLastPointX(),tpl->GetLastPointY(),tpl->GetLastPointZ());
257	newtrack->SetPt(best->GetPt());
258	newtrack->SetPsi(best->GetPsi());
259	newtrack->SetTgl(best->GetTgl());
260	newtrack->SetCharge(tpf->GetCharge());
261	delete [] nn;
262	return newtrack;
263	}
264
265	void* AliHLTTPCMerger::GetNtuple(char *varlist) const
266	{
267	//get ntuple
268	#ifdef use_root
269	TNtuple* nt = new TNtuple("ntuple","ntuple",varlist);
270	return (void*) nt;
271	#else
272	return 0;
273	#endif
274	}
275
276	void* AliHLTTPCMerger::GetNtuple() const
277	{
278	//get ntuple
279	#ifdef use_root
280	TNtuple* nt = new TNtuple("ntuple","ntuple",
281	"dx:dy:dz:dk:dpsi:dtgl:dq:disx:disy:disz:dis:n0:n1:diff:drx:dry:drz");
282	return (void*) nt;
283	#else
284	return 0;
285	#endif
286	}
287
288	Bool_t AliHLTTPCMerger::WriteNtuple(char filename, void nt) const
289	{
290	//write ntuple
291	#ifdef use_root
292	TNtuple ntuple=(TNtuple ) nt;
293	TFile *f = new TFile(filename,"RECREATE");
294	ntuple->Write();
295	f->Close();
296	delete ntuple;
297	return kTRUE;
298	#else
299	return kFALSE;
300	#endif
301	}
302
303	void AliHLTTPCMerger::FillNtuple(void nt,AliHLTTPCTrack innertrack,AliHLTTPCTrack *outertrack)
304	{
305	//fill ntuple
306	Float_t data[17];
307	if(outertrack->IsPoint()&&innertrack->IsPoint())
308	{
309	data[0] =Float_t(innertrack->GetPointX()-outertrack->GetPointX());
310	data[1] =Float_t(innertrack->GetPointY()-outertrack->GetPointY());
311	data[2] =Float_t(innertrack->GetPointZ()-outertrack->GetPointZ());
312	data[3] =Float_t(innertrack->GetKappa()-outertrack->GetKappa());
313	Double_t psi= innertrack->GetPointPsi() - outertrack->GetPointPsi();
314	if(psi>AliHLTTPCTransform::Pi()) psi-=AliHLTTPCTransform::TwoPi();
315	else if(psi<-AliHLTTPCTransform::Pi()) psi+=AliHLTTPCTransform::TwoPi();
316	data[4] =Float_t(psi);
317	data[5] =Float_t(innertrack->GetTgl()-outertrack->GetTgl());
318	data[6] =Float_t(innertrack->GetCharge()-outertrack->GetCharge());
319	data[7] =Float_t(innertrack->GetLastPointX()-outertrack->GetFirstPointX());
320	data[8] =Float_t(innertrack->GetLastPointY()-outertrack->GetFirstPointY());
321	data[9] =Float_t(innertrack->GetLastPointZ()-outertrack->GetFirstPointZ());
322	data[10] =sqrt(pow(data[7],2)+pow(data[8],2)+pow(data[9],2));
323	data[11]= outertrack->GetNHits();
324	data[12]= innertrack->GetNHits();
325	data[13] = Float_t(TrackDiff(innertrack,outertrack));
326	data[14]=0;
327	data[15]=0;
328	data[16]=0;
329	#ifdef use_root
330	TNtuple ntuple = (TNtuple ) nt;
331	ntuple->Fill(data);
332	#endif
333	}
334	}
335
336	void AliHLTTPCMerger::FillNtuple(void nt,Float_t data) const
337	{
338	//fill ntuple
339	#ifdef use_root
340	TNtuple ntuple = (TNtuple ) nt;
341	ntuple->Fill(data);
342	#endif
343	}
344
345	Double_t AliHLTTPCMerger::GetAngle(Double_t a1,Double_t a2)
346	{
347	//get angle
348	Double_t da = a1 - a2 + 4*AliHLTTPCTransform::Pi();
349	da = fmod(da,AliHLTTPCTransform::TwoPi());
350	if(da>AliHLTTPCTransform::Pi()) da = AliHLTTPCTransform::TwoPi()-da;
351	return da;
352	}
353
354	void AliHLTTPCMerger::SetParameter(Double_t maxy, Double_t maxz, Double_t maxkappa, Double_t maxpsi, Double_t maxtgl)
355	{
356	//set parameters for merger
357	fMaxY = maxy;
358	fMaxZ = maxz;
359	fMaxKappa = maxkappa;
360	fMaxPsi = maxpsi;
361	fMaxTgl = maxtgl;
362	}
363
364	Bool_t AliHLTTPCMerger::IsTrack(AliHLTTPCTrack innertrack,AliHLTTPCTrack outertrack)
365	{
366	//is track to be merged
367	if(innertrack->GetCharge()!=outertrack->GetCharge()) return kFALSE;
368	if( (!innertrack->IsPoint()) \|\| (!outertrack->IsPoint()) ) return kFALSE;
369	if(innertrack->GetNHits()+outertrack->GetNHits()>AliHLTTPCTransform::GetNRows()) return kFALSE;
370
371	if(fabs(innertrack->GetPointY()-outertrack->GetPointY()) >fMaxY) return kFALSE;
372	if(fabs(innertrack->GetPointZ()-outertrack->GetPointZ()) >fMaxZ) return kFALSE;
373	if(fabs(innertrack->GetKappa()-outertrack->GetKappa()) >fMaxKappa) return kFALSE;
374	if(GetAngle(innertrack->GetPointPsi(),outertrack->GetPointPsi()) >fMaxPsi) return kFALSE;
375	if(fabs(innertrack->GetTgl()-outertrack->GetTgl()) >fMaxTgl) return kFALSE;
376	//if no rejection up to this point: merge!!
377	return kTRUE;
378	}
379
380	Bool_t AliHLTTPCMerger::IsRTrack(AliHLTTPCTrack innertrack,AliHLTTPCTrack outertrack)
381	{
382	//same as IsTrack
383	return IsTrack(innertrack,outertrack);
384	}
385
386	Double_t AliHLTTPCMerger::TrackDiff(AliHLTTPCTrack innertrack,AliHLTTPCTrack outertrack)
387	{
388	//return track difference
389	Double_t diff =-1;
390	Double_t x[4],y[4],z[4],dy[4],dz[4];
391	AliHLTTPCTrack *tracks[2];
392
393	tracks[0] = innertrack;
394	tracks[1] = outertrack;
395	SortGlobalTracks(tracks,2);
396	innertrack = tracks[0];
397	outertrack = tracks[1];
398
399	x[0] = innertrack->GetFirstPointX();
400	x[1] = innertrack->GetLastPointX();
401	x[2] = outertrack->GetFirstPointX();
402	x[3] = outertrack->GetLastPointX();
403
404	y[0] = innertrack->GetFirstPointY();
405	y[1] = innertrack->GetLastPointY();
406	y[2] = outertrack->GetFirstPointY();
407	y[3] = outertrack->GetLastPointY();
408
409	z[0] = innertrack->GetFirstPointZ();
410	z[1] = innertrack->GetLastPointZ();
411	z[2] = outertrack->GetFirstPointZ();
412	z[3] = outertrack->GetLastPointZ();
413
414
415	outertrack->CalculatePoint(x[0]);
416	if(!outertrack->IsPoint()) return diff;
417	dy[0] = fabs(y[0] - outertrack->GetPointY());
418	dz[0] = fabs(z[0] - outertrack->GetPointZ());
419
420	outertrack->CalculatePoint(x[1]);
421	if(!outertrack->IsPoint()) return diff;
422	dy[1] = fabs(y[1] - outertrack->GetPointY());
423	dz[1] = fabs(z[1] - outertrack->GetPointZ());
424
425	innertrack->CalculatePoint(x[2]);
426	if(!innertrack->IsPoint()) return diff;
427	dy[2] = fabs(y[2] - innertrack->GetPointY());
428	dz[2] = fabs(z[2] - innertrack->GetPointZ());
429
430	innertrack->CalculatePoint(x[3]);
431	if(!innertrack->IsPoint()) return diff;
432	dy[3] = fabs(y[3] - innertrack->GetPointY());
433	dz[3] = fabs(z[3] - innertrack->GetPointZ());
434
435	diff=0;
436	for(Int_t i=0;i<4;i++)
437	diff+=sqrt(dy[i]dy[i]+dz[i]dz[i]);
438	return diff;
439	}
440
441	void AliHLTTPCMerger::PrintDiff(AliHLTTPCTrack innertrack,AliHLTTPCTrack outertrack)
442	{
443	// print difference
444	if(!innertrack->IsPoint()\|\|!outertrack->IsPoint())
445	{
446	LOG(AliHLTTPCLog::kInformational,"AliHLTTPCMerger::PrintDiff","No Points")<<ENDLOG;
447	//cerr<<"AliHLTTPCMerger::PrintDiff: No Points"<<endl;
448	//cerr<<"---------------------------"<<endl;
449	return;
450	}
451
452	Double_t dx = innertrack->GetPointX()-outertrack->GetPointX();
453	Double_t dy = innertrack->GetPointY()-outertrack->GetPointY();
454	Double_t dz = innertrack->GetPointZ()-outertrack->GetPointZ();
455	Double_t dk = innertrack->GetKappa()-outertrack->GetKappa();
456	Double_t dpsi= innertrack->GetPointPsi() - outertrack->GetPointPsi();
457	if(dpsi>AliHLTTPCTransform::Pi()) dpsi-=AliHLTTPCTransform::TwoPi();
458	else if(dpsi<-AliHLTTPCTransform::Pi())dpsi+=AliHLTTPCTransform::TwoPi();
459	//Double_t dpsi = GetAngle(innertrack->GetPointPsi(),outertrack->GetPointPsi());
460	Double_t dtgl= innertrack->GetTgl()-outertrack->GetTgl();
461	Double_t dq =innertrack->GetCharge()-outertrack->GetCharge();
462
463	LOG(AliHLTTPCLog::kInformational,"AliHLTTPCMerger::PrintDiff","Points") <<"dx: "<<dx<<" dy: "<<dy<<" dz: "<<dz<<" dk: "<<dk<<" dpsi: "<<dpsi<<" dtgl: "<<dtgl<<" dq: "<<dq<<ENDLOG;
464	//fprintf(stderr,"dx: %4f dy: %4f dz: %4f dk: %4f dpsi: %4f dtgl: %4f dq: %4f\n",dx,dy,dz,dk,dpsi,dtgl,dq);
465	//cerr<<"---------------------------"<<endl;
466
467	}
468
469	void AliHLTTPCMerger::Print()
470	{
471	// print some infos
472	for(Int_t i=0; i<fNIn; i++)
473	{
474	AliHLTTPCTrackArray *ttt= GetInTracks(i);
475	for(Int_t j =0;j<ttt->GetNTracks();j++)
476	{
477	AliHLTTPCTrack *track=ttt->GetCheckedTrack(j);
478	if(!track) continue;
479	track->CalculateHelix();
480	// Double_t angle = atan2(track->GetLastPointY(),track->GetLastPointX());
481	// if(angle<0) angle+=AliHLTTPCTransform::Pi();
482	if(track->CalculatePoint(135))
483	// if(!track->CalculateEdgePoint(angle)) cerr<<"**************"<<endl;
484	// if(track->CalculatePoint(track->GetLastPointX()))
485	// if(track->CalculatePoint(0))
486	{
487	// PrintTrack(track);
488	// track->CalculateReferencePoint(AliHLTTPCTransform::Pi()/180.);
489	track->CalculateReferencePoint(0.001);
490	Float_t dx=(float)track->GetPointX()-track->GetPointX();
491	Float_t dy=(float)track->GetPointY()-track->GetPointY();
492	Float_t dz=(float)track->GetPointZ()-track->GetPointZ();
493	LOG(AliHLTTPCLog::kInformational,"AliHLTTPCMerger::Print","RefPoint") <<"npt: "<<track->GetNHits()<<" dx: "<<dx<<" dy: "<<dy<<" dz: "<<dz<<ENDLOG;
494
495	//fprintf(stderr,"npt: %3d dx: %8.5f dy: %8.5f dz: %8.5f\n",track->GetNHits(),dx,dy,dz);
496	//cerr<<"---------------------------"<<endl;
497	}
498	}
499	}
500	}
501
502	void AliHLTTPCMerger::PrintTrack(AliHLTTPCTrack *track)
503	{
504	//print track info
505	fprintf(stderr,"npt: %3d pt: %.2f psi: %.2f tgl: %5.2f q: %2d\n",
506	track->GetNHits(),track->GetPt(),track->GetPsi(),
507	track->GetTgl(),track->GetCharge());
508	fprintf(stderr,
509	"x1: %6.2f y1: %6.2f z1: %6.2f xl: %6.2f yl: %6.2f zl: %6.2f\n",
510	track->GetFirstPointX(),track->GetFirstPointY(),track->GetFirstPointZ(),
511	track->GetLastPointX(),track->GetLastPointY(),track->GetLastPointZ());
512	if(track->IsPoint())
513	{
514	fprintf(stderr,
515	"R: %.2f Xc: %.2f Yc: %.2f Xp: %.2f Yp: %.2f Zp: %.2f Psip: %.2f\n",
516	track->GetRadius(),track->GetCenterX(),track->GetCenterY(),
517	track->GetPointX(),track->GetPointY(),track->GetPointZ(),
518	track->GetPointPsi());
519	}
520	}