PndTrkTrackFinder Class Reference

#include <PndTrkTrackFinder.h>

Inheritance diagram for PndTrkTrackFinder:

Public Member Functions
	PndTrkTrackFinder ()
	PndTrkTrackFinder (int verbose)
	~PndTrkTrackFinder ()
virtual InitStatus	Init ()
virtual void	Exec (Option_t *opt)
void	SetParContainers ()
void	Apollonius (PndTrkCluster *cluster, std::vector< double > &X, std::vector< double > &Y, std::vector< double > &R)
void	Apollonius (PndTrkHit *hit1, PndTrkHit *hit2, PndTrkHit *hit3, std::vector< double > &X, std::vector< double > &Y, std::vector< double > &R)
void	CircleBy3Points (PndTrkHit *hit1, PndTrkHit *hit2, PndTrkHit *hit3, double &X, double &Y, double &R)
void	Initialize ()
void	Reset ()
void	SwitchOnDisplay ()
void	DrawGeometry ()
void	DrawHits (PndTrkHitList *hitlist)
void	DrawLists ()
void	DrawNeighborings ()
void	DrawNeighboringsToHit (PndTrkHit *hit)
void	Refresh ()
void	RefreshConf ()
void	DrawGeometryConf (double x1, double x2, double y1, double y2)
void	DrawConfHit (double x, double y, double r, int marker=2)
void	LightCluster (PndTrkCluster *cluster)
void	DrawLegendreHisto ()
void	ComputePlaneExtremities (PndTrkCluster *cluster)
Int_t	FillConformalHitList (PndTrkCluster *cluster)
void	FillLegendreHisto (PndTrkCluster *cluster)
void	ComputeTraAndRot (PndTrkHit *hit, Double_t &delta, Double_t trasl[2])
PndTrkHit *	FindSttReferenceHit (int isec=-1)
PndTrkHit *	FindMvdPixelReferenceHit ()
PndTrkHit *	FindMvdStripReferenceHit ()
PndTrkHit *	FindMvdReferenceHit ()
PndTrkHit *	FindReferenceHit ()
PndTrkHit *	FindReferenceHit (PndTrkCluster *cluster)
void	RePrepareLegendre (PndTrkCluster *cluster)
Int_t	ApplyLegendre (PndTrkCluster *cluster, double &theta_max, double &r_max)
Int_t	ExtractLegendre (Int_t mode, double &theta_max, double &r_max)
void	FromConformalToRealTrack (double fitm, double fitp, double &x0, double &y0, double &R)
void	FromConformalToRealTrackParabola (double fita, double fitb, double fitc, double &x0, double &y0, double &R, double &epsilon)
void	FromRealToConformalTrack (double x0, double y0, double R, double &fitm, double &fitp)
void	SearchSecondaryTracks ()
PndTrkClusterList	CreateFullClusterization ()
Int_t	CountTracksInCluster (PndTrkCluster *cluster)
Int_t	CountTracksInSkewSector (PndTrkCluster *cluster)
Int_t	CountTracksInCluster (PndTrkCluster *cluster, Int_t where)
Int_t	CountPossibleTracks ()
Int_t	ClusterToConformal (PndTrkCluster *cluster)
PndTrkTrack *	LegendreFit (PndTrkCluster *cluster)
PndTrkCluster *	CreateClusterAroundTrack (PndTrkTrack *track)
Bool_t	AnalyticalFit (PndTrkCluster *cluster, double xc, double yc, double R, double &fitm, double &fitq)
void	AnalyticalFit2 (PndTrkCluster *cluster, double fitm, double fitp, double &fitm2, double &fip2)
Bool_t	AnalyticalParabolaFit (PndTrkCluster *cluster, double xc, double yc, double R, double &fita, double &fitb, Double_t &fitc, Double_t &epsilon)
void	IntersectionFinder (PndTrkHit *hit, double xc, double yc, double R)
void	IntersectionFinder (PndTrkConformalHit *chit, double fitm, double fitp)
void	FillHitMap ()
PndTrkCluster	CreateSkewHitList (PndTrkTrack *track)
PndTrkCluster	CleanUpSkewHitList (PndTrkCluster *skewhitlist)
void	DrawZGeometry (double phimin=0, double phimax=360, double zmin=-43, double zmax=113)
Bool_t	MinuitFit (PndTrkCluster *cluster, double mstart, double qstart, double &fitm, double &fitq)
Bool_t	MinuitFit2 (PndTrkCluster *cluster, double xstart, double ystart, double rstart, double &xc, double &yc, double &R, double &sign)
void	DeletePrimaryHits ()
Int_t	RecreateHitArrays (std::map< int, std::vector< int > > &det_to_hitids)
std::map< int, bool >	PrimaryCheck (Int_t detid, std::map< int, std::vector< int > > &det_to_hitids)

Private Member Functions
	ClassDef (PndTrkTrackFinder, 1)

Private Attributes
Int_t	fNofMvdPixHits
Int_t	fNofMvdStrHits
Int_t	fNofSttHits
Int_t	fNofTriplets
Int_t	fNofHits
Int_t	fNofSciTHits
Int_t	fNofGemHits
TClonesArray *	fSttPointArray
TClonesArray *	fSttHitArray
TClonesArray *	fMvdPixelHitArray
TClonesArray *	fMvdStripHitArray
TClonesArray *	fSciTHitArray
TClonesArray *	fGemHitArray
TClonesArray *	fTrackArray
TClonesArray *	fTrackCandArray
TClonesArray *	fTrkTrackArray
TClonesArray *	fPrimaryTrackArray
TClonesArray *	fTubeArray
PndGeoSttPar *	fSttParameters
char	fSttBranch [200]
char	fMvdPixelBranch [200]
char	fMvdStripBranch [200]
char	fSciTBranch [200]
char	fGemBranch [200]
PndSttMapCreator *	fMapper
Int_t	fEventCounter
PndTrkGemCombinatorial *	fCombiFinder
PndTrkSttHitList *	stthitlist
PndTrkSdsHitList *	mvdpixhitlist
PndTrkSdsHitList *	mvdstrhitlist
PndTrkSciTHitList *	scithitlist
PndTrkGemHitList *	gemhitlist
Double_t	fSttParalDistance
Double_t	fSttToMvdStripDistance
double	fDeltaThetaRad
PndTrkLegendreTransform *	legendre
Bool_t	fDisplayOn
Bool_t	fPersistence
Bool_t	fUseMVDPix
Bool_t	fUseMVDStr
Bool_t	fUseSTT
Bool_t	fUseSCIT
Bool_t	fUseGEM
Bool_t	fSecondary
Bool_t	fInitDone
Double_t	fMvdPix_RealDistLimit
Double_t	fMvdStr_RealDistLimit
Double_t	fStt_RealDistLimit
Double_t	fMvdPix_ConfDistLimit
Double_t	fMvdStr_ConfDistLimit
Double_t	fStt_ConfDistLimit
double	fUmin
double	fUmax
double	fVmin
double	fVmax
double	fRmin
double	fRmax
double	fThetamin
double	fThetamax
PndTrkHit *	fRefHit
Bool_t	fDelPrim
Int_t	fNofPrimaries
PndTrkConformalTransform *	conform
PndTrkConformalHitList *	fConformalHitList
PndTrkTools *	tools
std::vector< std::pair< double, double > >	fFoundPeaks
double	fTime
TStopwatch *	fTimer
PndTrkFitter *	fFitter
PndTrkNeighboringMap *	fHitMap
TH2F *	hxy
TH2F *	hxz
TH2F *	hzphi
TCanvas *	display
TH2F *	huv
TH2F *	fLineHisto
PndTrkCluster *	fCluster
PndTrkCluster *	fFinalCluster
PndTrkCluster *	fIndivCluster
PndTrkCluster *	fSkewCluster
PndTrkCluster *	fFinalSkewCluster
PndTrkCluster *	fIndivisibleHitList
PndTrkTrackList *	fTrackList

Detailed Description

Definition at line 40 of file PndTrkTrackFinder.h.

Constructor & Destructor Documentation

PndTrkTrackFinder::PndTrkTrackFinder

(

)

Default constructor

Definition at line 334 of file PndTrkTrackFinder.cxx.

References fGemBranch, fMvdPixelBranch, fMvdStripBranch, fSciTBranch, fSttBranch, and PndGeoHandling::Instance().

                                     : FairTask("secondary track finder", 0), fDisplayOn(kFALSE), fPersistence(kTRUE), fUseMVDPix(kTRUE), fUseMVDStr(kTRUE), fUseSTT(kTRUE), fUseSCIT(kTRUE), fUseGEM(kTRUE), fSecondary(kFALSE), fInitDone(kFALSE), fMvdPix_RealDistLimit(1000), fMvdStr_RealDistLimit(1000), fStt_RealDistLimit(1000), fMvdPix_ConfDistLimit(1000), fMvdStr_ConfDistLimit(1000), fStt_ConfDistLimit(1000), fUmin(-0.07), fUmax(0.07), fVmin(-0.07), fVmax(0.07), fRmin(-1.5), fRmax(1.5), fThetamin(0), fThetamax(180), fRefHit(NULL), fDelPrim(kFALSE), fNofPrimaries(0) {
  sprintf(fSttBranch,"STTHit");
  sprintf(fMvdPixelBranch,"MVDHitsPixel");
  sprintf(fMvdStripBranch,"MVDHitsStrip");
  sprintf(fSciTBranch,"SciTHit");
  sprintf(fGemBranch,"GEMHit");
  PndGeoHandling::Instance();
}

PndTrkTrackFinder::PndTrkTrackFinder

(

int

verbose

)

Definition at line 343 of file PndTrkTrackFinder.cxx.

References fGemBranch, fMvdPixelBranch, fMvdStripBranch, fSciTBranch, fSttBranch, and PndGeoHandling::Instance().

                                                : FairTask("secondary track finder", verbose), fDisplayOn(kFALSE), fPersistence(kTRUE), fUseMVDPix(kTRUE), fUseMVDStr(kTRUE), fUseSTT(kTRUE), fUseSCIT(kTRUE), fUseGEM(kTRUE), fSecondary(kFALSE), fInitDone(kFALSE), fMvdPix_RealDistLimit(1000), fMvdStr_RealDistLimit(1000), fStt_RealDistLimit(1000), fMvdPix_ConfDistLimit(1000), fMvdStr_ConfDistLimit(1000), fStt_ConfDistLimit(1000), fUmin(-0.07), fUmax(0.07), fVmin(-0.07), fVmax(0.07), fRmin(-1.5), fRmax(1.5), fThetamin(0), fThetamax(180), fRefHit(NULL), fDelPrim(kFALSE), fNofPrimaries(0) {
  sprintf(fSttBranch,"STTHit");
  sprintf(fMvdPixelBranch,"MVDHitsPixel");
  sprintf(fMvdStripBranch,"MVDHitsStrip");
  sprintf(fSciTBranch,"SciTHit");
  sprintf(fGemBranch,"GEMHit");
  PndGeoHandling::Instance();
}

PndTrkTrackFinder::~PndTrkTrackFinder

(

)

Destructor

Definition at line 355 of file PndTrkTrackFinder.cxx.

References conform, display, fConformalHitList, fFitter, fGemHitArray, fHitMap, fMapper, fMvdPixelHitArray, fMvdStripHitArray, fRefHit, fSciTHitArray, fSttHitArray, fSttParameters, fSttPointArray, fTimer, fTrackArray, fTrackCandArray, fTrkTrackArray, fTubeArray, gemhitlist, huv, hxy, hxz, hzphi, legendre, mvdpixhitlist, mvdstrhitlist, scithitlist, stthitlist, and tools.

                                      { 

  delete fSttPointArray;
  delete fSttHitArray;
  delete fMvdPixelHitArray;
  delete fMvdStripHitArray;
  delete fSciTHitArray;
  delete fGemHitArray;
  delete fTrackArray;
  delete fTrkTrackArray;
  delete fTrackCandArray;
  delete fTubeArray;

  delete fSttParameters;
  delete fMapper;

  delete stthitlist;
  delete mvdpixhitlist;
  delete mvdstrhitlist;
  delete scithitlist;
  delete gemhitlist;
  
  delete legendre;

  delete conform;
  delete fConformalHitList;
  delete tools;

  delete fRefHit;

  // delete fFoundPeaks;

  delete fTimer;

  delete fFitter;
  delete fHitMap;

  delete hxy;
  delete hxz;
  delete hzphi;
  delete display;
  delete huv;
  
}

Member Function Documentation

Bool_t PndTrkTrackFinder::AnalyticalFit	(	PndTrkCluster *	cluster,
		double	xc,
		double	yc,
		double	R,
		double &	fitm,
		double &	fitq
	)

Definition at line 6698 of file PndTrkTrackFinder.cxx.

References conform, display, fDisplayOn, fFitter, fRefHit, FromConformalToRealTrack(), PndTrkConformalTransform::GetConformalHit(), PndTrkConformalTransform::GetConformalSttHit(), PndTrkCluster::GetHit(), PndTrkConformalHit::GetIsochrone(), PndTrkCluster::GetNofHits(), PndTrkConformalHit::GetPosition(), PndTrkHit::GetPosition(), hit(), IntersectionFinder(), PndTrkHit::IsGem(), PndTrkHit::IsSciTil(), PndTrkHit::IsSttParallel(), PndTrkHit::IsSttSkew(), Refresh(), PndTrkFitter::Reset(), PndTrkFitter::SetPointToFit(), sigma, and PndTrkFitter::StraightLineFit().

Referenced by Exec().

                                                                                                                         {
  
  
  // fit with analytical chi2 -----~~~~~-----~~~~~-----~~~~~-----~~~~~-----~~~~~--
  fFitter->Reset();
  if(fDisplayOn) {
    display->cd(1);
    Refresh();
  }
  for(int ihit = 0; ihit < cluster->GetNofHits(); ihit++) 
    {
      PndTrkHit *hit = cluster->GetHit(ihit);
      if(hit == fRefHit) continue;
      if(hit->IsSttSkew()) continue;
      if(hit->IsSttParallel()) IntersectionFinder(hit, xc, yc, R);
    
      PndTrkConformalHit chit = conform->GetConformalHit(hit);
      PndTrkConformalHit chitstt = conform->GetConformalSttHit(hit);
      double sigma = 1e-5 * hit->GetPosition().Perp();
      if(hit->IsSttParallel()) sigma = chitstt.GetIsochrone() * hit->GetPosition().Perp(); // 0.1; // CHECK
      if(hit->IsGem()) sigma = 0.1 * hit->GetPosition().Perp(); // CHECK
      if(hit->IsSciTil()) sigma = 0.5 * hit->GetPosition().Perp(); // CHECK
      //       // if(chit.GetPosition().Mod() > 2) continue; // CHECK THIS OUT!

      if(TMath::IsNaN(chit.GetPosition().X())) continue; // prevents the nan of the ref hit
      fFitter->SetPointToFit(chit.GetPosition().X(), chit.GetPosition().Y(), sigma);
      //      cout << "set point to fit " << chit.GetHit()->GetHitID() << " " << chit.GetHit()->GetDetectorID() << " " << chit.GetPosition().X() << " " <<  chit.GetPosition().Y() << " " << sigma << endl;
      if(fDisplayOn) {
        display->cd(1);
        TMarker *mrk = new TMarker(hit->GetPosition().X(), hit->GetPosition().Y(), 6);
        mrk->SetMarkerColor(kRed);
        mrk->Draw("SAME");

        display->cd(2);
        TMarker *mrk2 = new TMarker(chit.GetPosition().X(), chit.GetPosition().Y(), 6);
        mrk2->SetMarkerColor(kRed);
        mrk2->Draw("SAME");


        display->Update();
        display->Modified();
      } 
    }

  
  fFitter->StraightLineFit(fitm, fitq);

  // fitq == 0 means infinite radius
  // fitm == 0

  if(fitm == 0) return kFALSE;

  //  cout << "previous " << xc << " " << yc << " " << R << endl;
  FromConformalToRealTrack(fitm, fitq, xc, yc, R);
  // cout << "now " << xc << " " << yc << " " << R << endl;

  if(fDisplayOn) {
    display->cd(2);
    cout << "wanna see the line?" << endl;
    TLine *line = new TLine(-10.07, fitq + fitm * (-10.07), 10.07, fitq + fitm * (10.07));
    line->SetLineColor(2);
    line->Draw("SAME");
    char goOnChar;
    display->Update();
    display->Modified();
    cin >> goOnChar;
  }

  return kTRUE;




}

void PndTrkTrackFinder::AnalyticalFit2	(	PndTrkCluster *	cluster,
		double	fitm,
		double	fitp,
		double &	fitm2,
		double &	fip2
	)

Definition at line 6774 of file PndTrkTrackFinder.cxx.

References conform, display, PndTrkConformalHit::Draw(), fDisplayOn, fFitter, FromConformalToRealTrack(), PndTrkConformalTransform::GetConformalSttHit(), PndTrkCluster::GetHit(), PndTrkConformalHit::GetIsochrone(), PndTrkCluster::GetNofHits(), PndTrkConformalHit::GetPosition(), PndTrkHit::GetPosition(), hit(), IntersectionFinder(), PndTrkHit::IsSttSkew(), R, Refresh(), PndTrkFitter::Reset(), PndTrkFitter::SetPointToFit(), sigma, and PndTrkFitter::StraightLineFit().

                                                                                                                    {
  
  
  // fit with analytical chi2 -----~~~~~-----~~~~~-----~~~~~-----~~~~~-----~~~~~--
  fFitter->Reset();
  if(fDisplayOn) {
    display->cd(1);
    Refresh();
  }
  for(int ihit = 0; ihit < cluster->GetNofHits(); ihit++) 
    {
      PndTrkHit *hit = cluster->GetHit(ihit);
      if(hit->IsSttSkew()) continue;
  
      PndTrkConformalHit chit = conform->GetConformalSttHit(hit);
      IntersectionFinder(&chit, fitm, fitp);
      
      double sigma = chit.GetIsochrone();
      fFitter->SetPointToFit(chit.GetPosition().X(), chit.GetPosition().Y(), sigma);
      //      cout << "set point to fit " << chit.GetPosition().X() << " " <<  chit.GetPosition().Y() << endl;
      if(fDisplayOn) {
        display->cd(1);
        TMarker *mrk = new TMarker(hit->GetPosition().X(), hit->GetPosition().Y(), 6);
        mrk->SetMarkerColor(kRed);
        mrk->Draw("SAME");

        display->cd(2);
        chit.Draw(1);

        display->cd(2);
        TMarker *mrk2 = new TMarker(chit.GetPosition().X(), chit.GetPosition().Y(), 6);
        mrk2->SetMarkerColor(kRed);
        mrk2->Draw("SAME");


        display->Update();
        display->Modified();
      } 
    }

  
  fFitter->StraightLineFit(fitm2, fitp2);

  double xc, yc, R;
  FromConformalToRealTrack(fitm, fitp, xc, yc, R);
  cout << "previous " << xc << " " << yc << " " << R << endl;
  FromConformalToRealTrack(fitm2, fitp2, xc, yc, R);
  cout << "now " << xc << " " << yc << " " << R << endl;

  if(fDisplayOn) {
    display->cd(2);
    cout << "wanna see the line?" << endl;
    TLine *line = new TLine(-10.07, fitp2 + fitm2 * (-10.07), 10.07, fitp2 + fitm2 * (10.07));
    line->SetLineColor(2);
    line->Draw("SAME");

    display->cd(1);
    TArc *aline = new TArc(xc, yc, R);
    aline->SetFillStyle(0);
    aline->SetLineColor(2);
    aline->Draw("SAME");


    char goOnChar;
    display->Update();
    display->Modified();
    cin >> goOnChar;
  }




}

Bool_t PndTrkTrackFinder::AnalyticalParabolaFit	(	PndTrkCluster *	cluster,
		double	xc,
		double	yc,
		double	R,
		double &	fita,
		double &	fitb,
		Double_t &	fitc,
		Double_t &	epsilon
	)

Definition at line 6850 of file PndTrkTrackFinder.cxx.

References conform, display, fDisplayOn, fFitter, fRefHit, FromConformalToRealTrackParabola(), PndTrkConformalTransform::GetConformalHit(), PndTrkConformalTransform::GetConformalSttHit(), PndTrkCluster::GetHit(), PndTrkConformalHit::GetIsochrone(), PndTrkCluster::GetNofHits(), PndTrkConformalHit::GetPosition(), PndTrkHit::GetPosition(), hit(), IntersectionFinder(), PndTrkHit::IsGem(), PndTrkHit::IsSciTil(), PndTrkHit::IsSttParallel(), PndTrkHit::IsSttSkew(), PndTrkFitter::ParabolaFit(), Refresh(), PndTrkFitter::Reset(), PndTrkFitter::SetPointToFit(), and sigma.

Referenced by Exec().

                                                                                                                                                                    {
  
  
  // fit with analytical chi2 -----~~~~~-----~~~~~-----~~~~~-----~~~~~-----~~~~~--
  fFitter->Reset();
  if(fDisplayOn) {
    display->cd(1);
    Refresh();
  }
  for(int ihit = 0; ihit < cluster->GetNofHits(); ihit++) 
    {
      PndTrkHit *hit = cluster->GetHit(ihit);
      if(hit == fRefHit) continue;
      if(hit->IsSttSkew()) continue;
      if(hit->IsSttParallel()) IntersectionFinder(hit, xc, yc, R);
    
      PndTrkConformalHit chit = conform->GetConformalHit(hit);
      PndTrkConformalHit chitstt = conform->GetConformalSttHit(hit);
      double sigma = 1e-5;
      if(hit->IsSttParallel()) sigma = chitstt.GetIsochrone(); // 0.1; // CHECK
      if(hit->IsGem()) sigma = 0.1; // CHECK
      if(hit->IsSciTil()) sigma = 0.5; // CHECK
      //       // if(chit.GetPosition().Mod() > 2) continue; // CHECK THIS OUT!

      if(TMath::IsNaN(chit.GetPosition().X())) continue; // prevents the nan of the ref hit
      fFitter->SetPointToFit(chit.GetPosition().X(), chit.GetPosition().Y(), sigma);
      //      cout << "set point to fit " << chit.GetHit()->GetHitID() << " " << chit.GetHit()->GetDetectorID() << " " << chit.GetPosition().X() << " " <<  chit.GetPosition().Y() << " " << sigma << endl;
      if(fDisplayOn) {
        display->cd(1);
        TMarker *mrk = new TMarker(hit->GetPosition().X(), hit->GetPosition().Y(), 6);
        mrk->SetMarkerColor(kRed);
        mrk->Draw("SAME");

        display->cd(2);
        TMarker *mrk2 = new TMarker(chit.GetPosition().X(), chit.GetPosition().Y(), 6);
        mrk2->SetMarkerColor(kRed);
        mrk2->Draw("SAME");


        display->Update();
        display->Modified();
      } 
    }

  
  fFitter->ParabolaFit(fita, fitb, fitc);

  // CHECK this 
  if(fita == 0) return kFALSE;

  FromConformalToRealTrackParabola(fita, fitb, fitc, xc, yc, R, epsilon);
  // cout << "now " << xc << " " << yc << " " << R << endl;

//   if(fDisplayOn) {
//     display->cd(2);
//     cout << "wanna see the line?" << endl;
//     TLine *line = new TLine(-10.07, fitq + fitm * (-10.07), 10.07, fitq + fitm * (10.07));
//     line->SetLineColor(2);
//     line->Draw("SAME");
//     char goOnChar;
//     display->Update();
//     display->Modified();
//     cin >> goOnChar;
//   }

  return kTRUE;
}

void PndTrkTrackFinder::Apollonius	(	PndTrkCluster *	cluster,
		std::vector< double > &	X,
		std::vector< double > &	Y,
		std::vector< double > &	R
	)

Definition at line 5069 of file PndTrkTrackFinder.cxx.

References a, b, c, counter, display, fDisplayOn, PndTrkCluster::GetHit(), PndTrkHit::GetIsochrone(), PndTrkCluster::GetNofHits(), PndTrkHit::GetPosition(), h2, hit(), i, r, and CAMath::Sqrt().

{ 

  if(fDisplayOn) {
    TH2F *h2 = new TH2F("h2", "", 100, -70, 70, 100, -70, 70);
    display->cd(2);
    h2->Draw();

    display->Update();
    display->Modified();
  }

  int ncircles = cluster->GetNofHits();
  double circle[ncircles][3];
  
  for(int i = 0; i < ncircles; i++)
    {
      PndTrkHit *hit = cluster->GetHit(i);
      double xc = hit->GetPosition().X();
      double yc = hit->GetPosition().Y();
      double rc = hit->GetIsochrone();

      circle[i][0] = xc;
      circle[i][1] = yc;
      circle[i][2] = rc;
      //      cout << xc << " " << yc << "  " << rc << endl;

      if(fDisplayOn) {
        //char goOnChar; //[R.K. 01/2017] unused variable
        display->cd(2);  
        TArc *arc = new TArc(xc, yc, rc);
        arc->SetFillStyle(0);
        arc->Draw("SAME");
        display->Update();
        display->Modified();
      }
    }

  int counter = 0;
  for(int a = 0; a < ncircles; a++) {
    for(int b = a + 1; b < ncircles; b++) {
      for(int c = b + 1; c < ncircles; c++) {
        for(int csign1 = -1; csign1 <= 1; csign1 += 2) {
          for(int csign2 = -1; csign2 <= 1; csign2 += 2) {
            double avar   = 2 * (circle[a][0] - circle[b][0]);
            double bvar   = 2 * (circle[a][1] - circle[b][1]);
            double cvar = 2 * (csign1 * circle[a][2] + csign2 * circle[b][2]);
            double dvar = (circle[a][0] * circle[a][0] + circle[a][1] * circle[a][1] - circle[a][2] * circle[a][2]) - (circle[b][0] * circle[b][0] + circle[b][1] * circle[b][1] - circle[b][2] * circle[b][2]);
            
            for(int csignp = -1; csignp <= 1; csignp += 2) {
              double avarp   = 2 * (circle[a][0] - circle[c][0]);
              double bvarp   = 2 * (circle[a][1] - circle[c][1]);
              double cvarp = 2 * (csign1 * circle[a][2] + csignp * circle[c][2]);
              double dvarp = (circle[a][0] * circle[a][0] + circle[a][1] * circle[a][1] - circle[a][2] * circle[a][2]) - (circle[c][0] * circle[c][0] + circle[c][1] * circle[c][1] - circle[c][2] * circle[c][2]);
              
              // ======================================
              double thisq = (dvar * bvarp - dvarp * bvar) / (avar * bvarp - avarp * bvar);
              double thism = (bvar * cvarp - bvarp * cvar) / (avar * bvarp - avarp * bvar);
          
              double thisp = (avar * dvarp - avarp * dvar) / (avar * bvarp - avarp * bvar);
              double thiss = (cvar * avarp - cvarp * avar) / (avar * bvarp - avarp * bvar);
              //            cout << thism  << " " << thisq << " " << thiss << " " << thisp << endl;
              // ======================================
              // thisa x**2 + 2 * thisb x + thisc = 0
          
              double thisa = thism * thism + thiss * thiss - 1;
              double thisb = thism * (thisq - circle[a][0]) + thiss * (thisp - circle[a][1]) - csign1 * circle[a][2];
              double thisc =  (thisq - circle[a][0]) *  (thisq - circle[a][0]) + (thisp - circle[a][1]) * (thisp - circle[a][1]) - circle[a][2] * circle[a][2];

              if((thisb * thisb - thisa * thisc) < 0) continue;
              double r = (- thisb + TMath::Sqrt(thisb * thisb - thisa * thisc))/ thisa;
              //              cout << "r1 " << r << endl;
              if(r < 0) {
                r = (- thisb - TMath::Sqrt(thisb * thisb - thisa * thisc))/ thisa;
                //      cout << "r2 " << r << endl;
              }

              if(r < 0) continue; // CHECK

              //  R[counter] = r;
              //              X[counter] = thism * R[counter] + thisq;
              //              Y[counter]  = thiss * R[counter] + thisp;

              R.push_back(r);
              X.push_back(thism * R[counter] + thisq);
              Y.push_back(thiss * R[counter] + thisp);
              cout << R[counter] << " " << X[counter] << " " << Y[counter] << endl;
              //  if(fDisplayOn) {
              //                char goOnChar;
              //                display->cd(2); 
              //                TArc *arc0 = new TArc(X[counter], Y[counter], R[counter]);
              //                arc0->SetFillStyle(0);
              //                arc0->SetLineColor(2);
              //                arc0->Draw("SAME");
              //                display->Update();
              //                display->Modified();
              //                //      cin >> goOnChar;
              //              }


              //     cout << "ctr/dist/R " << counter << " " << TMath::Sqrt((circle[a][0] - X[counter]) * (circle[a][0] - X[counter]) + (circle[a][1] - Y[counter]) * (circle[a][1] - Y[counter])) - R[counter] << " " << R[counter] << endl;
              counter++;
              //  cout << endl;
            }
          }
        }
      }
    }
  }
}

void PndTrkTrackFinder::Apollonius	(	PndTrkHit *	hit1,
		PndTrkHit *	hit2,
		PndTrkHit *	hit3,
		std::vector< double > &	X,
		std::vector< double > &	Y,
		std::vector< double > &	R
	)

Definition at line 5228 of file PndTrkTrackFinder.cxx.

References a, b, c, counter, PndTrkHit::GetIsochrone(), PndTrkHit::GetPosition(), r, and CAMath::Sqrt().

{ 

  int ncircles = 3;
  double circle[ncircles][3];
  
  circle[0][0] = hit1->GetPosition().X();
  circle[0][1] = hit1->GetPosition().Y();
  circle[0][2] = hit1->GetIsochrone();

  circle[1][0] = hit2->GetPosition().X();
  circle[1][1] = hit2->GetPosition().Y();
  circle[1][2] = hit2->GetIsochrone();

  circle[2][0] = hit3->GetPosition().X();
  circle[2][1] = hit3->GetPosition().Y();
  circle[2][2] = hit3->GetIsochrone();
  
  int counter = 0;
  for(int a = 0; a < ncircles; a++) {
    for(int b = a + 1; b < ncircles; b++) {
      for(int c = b + 1; c < ncircles; c++) {
        for(int csign1 = -1; csign1 <= 1; csign1 += 2) {
          for(int csign2 = -1; csign2 <= 1; csign2 += 2) {
            double avar   = 2 * (circle[a][0] - circle[b][0]);
            double bvar   = 2 * (circle[a][1] - circle[b][1]);
            double cvar = 2 * (csign1 * circle[a][2] + csign2 * circle[b][2]);
            double dvar = (circle[a][0] * circle[a][0] + circle[a][1] * circle[a][1] - circle[a][2] * circle[a][2]) - (circle[b][0] * circle[b][0] + circle[b][1] * circle[b][1] - circle[b][2] * circle[b][2]);
            
            for(int csignp = -1; csignp <= 1; csignp += 2) {
              double avarp   = 2 * (circle[a][0] - circle[c][0]);
              double bvarp   = 2 * (circle[a][1] - circle[c][1]);
              double cvarp = 2 * (csign1 * circle[a][2] + csignp * circle[c][2]);
              double dvarp = (circle[a][0] * circle[a][0] + circle[a][1] * circle[a][1] - circle[a][2] * circle[a][2]) - (circle[c][0] * circle[c][0] + circle[c][1] * circle[c][1] - circle[c][2] * circle[c][2]);
              
              // ======================================
              double thisq = (dvar * bvarp - dvarp * bvar) / (avar * bvarp - avarp * bvar);
              double thism = (bvar * cvarp - bvarp * cvar) / (avar * bvarp - avarp * bvar);
          
              double thisp = (avar * dvarp - avarp * dvar) / (avar * bvarp - avarp * bvar);
              double thiss = (cvar * avarp - cvarp * avar) / (avar * bvarp - avarp * bvar);
              //            cout << thism  << " " << thisq << " " << thiss << " " << thisp << endl;
              // ======================================
              // thisa x**2 + 2 * thisb x + thisc = 0
          
              double thisa = thism * thism + thiss * thiss - 1;
              double thisb = thism * (thisq - circle[a][0]) + thiss * (thisp - circle[a][1]) - csign1 * circle[a][2];
              double thisc =  (thisq - circle[a][0]) *  (thisq - circle[a][0]) + (thisp - circle[a][1]) * (thisp - circle[a][1]) - circle[a][2] * circle[a][2];

              if((thisb * thisb - thisa * thisc) < 0) continue;
              double r = (- thisb + TMath::Sqrt(thisb * thisb - thisa * thisc))/ thisa;
              //              cout << "r1 " << r << endl;
              if(r < 0) {
                r = (- thisb - TMath::Sqrt(thisb * thisb - thisa * thisc))/ thisa;
                //      cout << "r2 " << r << endl;
              }

              if(r < 0) continue; // CHECK

              //  R[counter] = r;
              //              X[counter] = thism * R[counter] + thisq;
              //              Y[counter]  = thiss * R[counter] + thisp;

              R.push_back(r);
              X.push_back(thism * R[counter] + thisq);
              Y.push_back(thiss * R[counter] + thisp);
              cout << R[counter] << " " << X[counter] << " " << Y[counter] << endl;
              //  if(fDisplayOn) {
              //                char goOnChar;
              //                display->cd(2); 
              //                TArc *arc0 = new TArc(X[counter], Y[counter], R[counter]);
              //                arc0->SetFillStyle(0);
              //                arc0->SetLineColor(2);
              //                arc0->Draw("SAME");
              //                display->Update();
              //                display->Modified();
              //                //      cin >> goOnChar;
              //              }

              
              //     cout << "ctr/dist/R " << counter << " " << TMath::Sqrt((circle[a][0] - X[counter]) * (circle[a][0] - X[counter]) + (circle[a][1] - Y[counter]) * (circle[a][1] - Y[counter])) - R[counter] << " " << R[counter] << endl;
              counter++;
              //  cout << endl;
            }
          }
        }
      }
    }
  }
}

Int_t PndTrkTrackFinder::ApplyLegendre	(	PndTrkCluster *	cluster,
		double &	theta_max,
		double &	r_max
	)

Definition at line 5779 of file PndTrkTrackFinder.cxx.

References ExtractLegendre(), and RePrepareLegendre().

                                                                                               {
  RePrepareLegendre(cluster);
  return ExtractLegendre(1, theta_max, r_max);
}

void PndTrkTrackFinder::CircleBy3Points	(	PndTrkHit *	hit1,
		PndTrkHit *	hit2,
		PndTrkHit *	hit3,
		double &	X,
		double &	Y,
		double &	R
	)

Definition at line 5180 of file PndTrkTrackFinder.cxx.

References a, b, c, PndTrkHit::GetIsochrone(), PndTrkHit::GetPosition(), and CAMath::Sqrt().

Referenced by Exec().

{ 

  int ncircles = 3;
  double circle[ncircles][3];
  
  //   cout << "circle 1 by 3 points " << hit1->GetPosition().X() << " " << hit1->GetPosition().Y() << endl;
  //   cout << "circle 2 by 3 points " << hit2->GetPosition().X() << " " << hit2->GetPosition().Y() << endl;
  //   cout << "circle 3 by 3 points " << hit3->GetPosition().X() << " " << hit3->GetPosition().Y() << endl;


  circle[0][0] = hit1->GetPosition().X();
  circle[0][1] = hit1->GetPosition().Y();
  circle[0][2] = hit1->GetIsochrone();

  circle[1][0] = hit2->GetPosition().X();
  circle[1][1] = hit2->GetPosition().Y();
  circle[1][2] = hit2->GetIsochrone();

  circle[2][0] = hit3->GetPosition().X();
  circle[2][1] = hit3->GetPosition().Y();
  circle[2][2] = hit3->GetIsochrone();


  // in case of alignement ad an error CHECK
  if((circle[1][1] - circle[0][1])/(circle[1][0] - circle[0][0]) - (circle[2][1] - circle[0][1])/(circle[2][0] - circle[0][0]) < 0.0001){
    circle[0][0] += 0.01;
    circle[0][1] += 0.01;
  }

  for(int a = 0; a < ncircles; a++) {
    for(int b = a + 1; b < ncircles; b++) {
      for(int c = b + 1; c < ncircles; c++) {
        Y = 0.5 * ((circle[a][0] - circle[b][0]) * (circle[a][0] * circle[a][0] - circle[c][0] * circle[c][0] + circle[a][1] * circle[a][1] - circle[c][1] * circle[c][1]) - (circle[a][0] - circle[c][0]) * (circle[a][0] * circle[a][0] - circle[b][0] * circle[b][0] + circle[a][1] * circle[a][1] - circle[b][1] * circle[b][1])) / ((circle[a][1] - circle[c][1]) * (circle[a][0] - circle[b][0]) - (circle[a][1] - circle[b][1]) * (circle[a][0] - circle[c][0]));

        if(circle[a][0] != circle[b][0]) {
          X = 0.5 * (circle[a][0] * circle[a][0] - circle[b][0] * circle[b][0] + circle[a][1] * circle[a][1] - circle[b][1] * circle[b][1] ) / (circle[a][0] - circle[b][0]) - Y * (circle[a][1] - circle[b][1])/(circle[a][0] - circle[b][0]);
        }
        else if(circle[a][0] != circle[c][0]) {
          X = 0.5 * (circle[a][0] * circle[a][0] - circle[c][0] * circle[c][0] + circle[a][1] * circle[a][1] - circle[c][1] * circle[c][1] ) / (circle[a][0] - circle[c][0]) - Y * (circle[a][1] - circle[c][1])/(circle[a][0] - circle[c][0]);
        }
        
        R = TMath::Sqrt((circle[a][0] - X) * (circle[a][0] - X) + (circle[a][1] - Y) * (circle[a][1] - Y));
      }
    }
  }
}

PndTrkTrackFinder::ClassDef ( PndTrkTrackFinder  , 1    )

private

PndTrkCluster PndTrkTrackFinder::CleanUpSkewHitList

(

PndTrkCluster *

skewhitlist

)

Definition at line 7279 of file PndTrkTrackFinder.cxx.

References PndTrkCluster::AddHit(), display, DrawZGeometry(), fabs(), fDisplayOn, PndTrkCluster::GetHit(), PndTrkSkewHit::GetIntersection1(), PndTrkSkewHit::GetIntersection2(), PndTrkCluster::GetNofHits(), PndTrkSkewHit::GetPhi1(), PndTrkSkewHit::GetPhi2(), hzphi, PndTrkHit::SetSortVariable(), and PndTrkCluster::Sort().

                                                                              {


  // 6. FIRST CLEANING of the track skewed associations
  // find most probable z - CHECK what happens if a track is very fwd peaked?
  //                        TRY WITH DELTA z = COST
  //    cout  << "##################### FIND MOST PROBABLE Z" << endl; 
  double phimin = 400, phimax = -1, zmin = 1000, zmax = -1;

  for(int ihit = 0; ihit < skewhitlist->GetNofHits(); ihit++) {
    PndTrkSkewHit *skewhit = (PndTrkSkewHit*) skewhitlist->GetHit(ihit);
    if(!skewhit) continue;
    TVector3 fin_intersection1 = skewhit->GetIntersection1();
    TVector3 fin_intersection2 = skewhit->GetIntersection2();

    double phi1 = skewhit->GetPhi1();
    double phi2 = skewhit->GetPhi2();

    if(phi1 < phimin) phimin = phi1;
    if(phi2 < phimin) phimin = phi2;
    if(fin_intersection1.Z() < zmin) zmin = fin_intersection1.Z();
    if(fin_intersection2.Z() < zmin) zmin = fin_intersection2.Z();
      
    if(phi1 > phimax) phimax = phi1;
    if(phi2 > phimax) phimax = phi2;
    if(fin_intersection1.Z() > zmax) zmax = fin_intersection1.Z();
    if(fin_intersection2.Z() > zmax) zmax = fin_intersection2.Z();
    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~ CHECK
  }
  //     cout << "PHI: " << phimin << " " << phimax << endl;
  //     cout << "Z  : " << zmin << " " << zmax << endl;

  // DISPLAY ----------------------------
  if(fDisplayOn) {
    //char goOnChar; //[R.K. 01/2017] unused variable
    display->cd(4);
    phimin -= 30;
    phimax += 30;
    zmin -= 13;
    zmax += 13;
    DrawZGeometry(phimin, phimax, zmin, zmax);
    hzphi->SetXTitle("#phi");
    hzphi->SetYTitle("#z");
    hzphi->Draw();
    display->Update();
    display->Modified();  
   
     
    for(int ihit = 0; ihit < skewhitlist->GetNofHits(); ihit++) {
      PndTrkSkewHit *skewhit = (PndTrkSkewHit*) skewhitlist->GetHit(ihit);
      if(!skewhit) continue;

      TVector3 fin_intersection1 = skewhit->GetIntersection1();
      TVector3 fin_intersection2 = skewhit->GetIntersection2();

      double phi1 = skewhit->GetPhi1();
      double phi2 = skewhit->GetPhi2();

      TLine *linezphi = new TLine(phi1, fin_intersection1.Z(), phi2, fin_intersection2.Z());
      // TLine *linezphi = new TLine(fin_intersection1.Z(), phi1, fin_intersection2.Z(), phi2);
      linezphi->SetLineStyle(1);
      linezphi->Draw("SAME");

      TMarker *mrkzphi1 = new TMarker(phi1, fin_intersection1.Z(), 20);
      // TMarker *mrkzphi1 = new TMarker(fin_intersection1.Z(), phi1, 20);

      mrkzphi1->SetMarkerColor(kBlue - 9);
      mrkzphi1->Draw("SAME");
        
      TMarker *mrkzphi2 = new TMarker(phi2, fin_intersection2.Z(), 20);
      //         TMarker *mrkzphi2 = new TMarker(fin_intersection2.Z(), phi2, 20);
      mrkzphi2->SetMarkerColor(kMagenta - 7);
      mrkzphi2->Draw("SAME");
    }
    display->Update();
    display->Modified();  
    //      cin >> goOnChar;   
  }
  // DISPLAY ----------------------------

  TH1F hz("hz", "z",  (zmax - zmin)/10., zmin, zmax); // CHECK
  for(int ihit = 0; ihit < skewhitlist->GetNofHits(); ihit++) {
    PndTrkSkewHit *skewhit = (PndTrkSkewHit*) skewhitlist->GetHit(ihit);
    if(!skewhit) continue;
    TVector3 fin_intersection1 = skewhit->GetIntersection1();
    TVector3 fin_intersection2 = skewhit->GetIntersection2();
    hz.Fill(fin_intersection1.Z());
    hz.Fill(fin_intersection2.Z());
  }
  int maxbinz = hz.GetMaximumBin();
  double mostprobZ = hz.GetBinCenter(maxbinz);
  //    cout << mostprobZ << endl;
    
  // delete hits too far away ..........   
  //    cout  << "##################### DELETE HITS" << endl; 
  PndTrkCluster tmpskewhitlist;
  for(int ihit = 0; ihit < skewhitlist->GetNofHits(); ihit++) {
    PndTrkSkewHit *skewhit = (PndTrkSkewHit*) skewhitlist->GetHit(ihit);
    if(!skewhit) continue;
    TVector3 fin_intersection1 = skewhit->GetIntersection1();
    TVector3 fin_intersection2 = skewhit->GetIntersection2();
    double phi1 = skewhit->GetPhi1();
    double phi2 = skewhit->GetPhi2();
      
    if(fabs(fin_intersection1.Z() - mostprobZ) > 30. && fabs(fin_intersection2.Z() - mostprobZ) > 30.) {
      //        cout << "THROW AWAY " << ihit << " " << fabs(fin_intersection1.Z() - mostprobZ) << "  " << fabs(fin_intersection2.Z() - mostprobZ) << endl;
      continue;
    }
    skewhit->SetSortVariable((phi1 + phi2)/2.);
    tmpskewhitlist.AddHit(skewhit);
  }
  tmpskewhitlist.Sort();
  return tmpskewhitlist;
}

Int_t PndTrkTrackFinder::ClusterToConformal

(

PndTrkCluster *

cluster

)

Definition at line 6477 of file PndTrkTrackFinder.cxx.

References ComputeTraAndRot(), conform, Double_t, fConformalHitList, FillConformalHitList(), FindReferenceHit(), fRefHit, fSecondary, and PndTrkConformalTransform::SetOrigin().

                                                                  {
  // ================ --> TO CONFORMAL PLANE
  fConformalHitList = new PndTrkConformalHitList(); // CHECK
  // translation and rotation
  Int_t nchits = 0;
  Double_t delta = 0, trasl[2] = {0., 0.};
  if(fSecondary) {
    // translation and rotation - CHECK
    //  cout << " REFERENCE HIT " << cluster->GetNofHits() << endl;
    fRefHit = FindReferenceHit(cluster);
    if(fRefHit == NULL)  {
      //          cout << "REFHIT " << fRefHit << endl;
      //        Reset();  
      return 0;
    }
    ComputeTraAndRot(fRefHit, delta, trasl);
  }
  //    
  cout << "DELTA " << delta << " TRASL " << trasl[0] << " " << trasl[1] << endl;
  conform->SetOrigin(trasl[0], trasl[1], delta);
  nchits = FillConformalHitList(cluster);
  
  return nchits;
}

void PndTrkTrackFinder::ComputePlaneExtremities

(

PndTrkCluster *

cluster

)

Definition at line 5703 of file PndTrkTrackFinder.cxx.

References CAMath::ATan2(), CAMath::Cos(), fabs(), fConformalHitList, fRmax, fRmin, fUmax, fUmin, fVmax, fVmin, PndTrkConformalHitList::GetHit(), PndTrkConformalHit::GetIsochrone(), PndTrkConformalHitList::GetNofHits(), PndTrkConformalHit::GetU(), PndTrkConformalHit::GetV(), Pi, r1, r2, CAMath::Sin(), and v.

                                                               { // cluster //[R.K.03/2017] unused variable(s)
  fUmin =  1000, fVmin =  1000, fRmin =  1000;
  fUmax = -1000, fVmax = -1000, fRmax = -1000;
  double rc_of_min, rc_of_max;
  
  
  for(int ihit = 0; ihit < fConformalHitList->GetNofHits(); ihit++) {
    PndTrkConformalHit *chit = fConformalHitList->GetHit(ihit);
    double u = chit->GetU();
    double v = chit->GetV();
    double rc = chit->GetIsochrone();
    u - rc < fUmin ? fUmin = u - rc : fUmin;
    v - rc < fVmin ? fVmin = v - rc : fVmin;
    u + rc > fUmax ? fUmax = u + rc : fUmax;
    v + rc > fVmax ? fVmax = v + rc : fVmax;
    
    double theta1 = TMath::ATan2(v, u);
    double theta2 = theta1 + TMath::Pi();
    
    double r1 = u * TMath::Cos(theta1) + v * TMath::Sin(theta1);
    double r2 = u * TMath::Cos(theta2) + v * TMath::Sin(theta2);
    
    double rimin, rimax;
    r1 < r2 ? (rimin = r1, rimax = r2) : (rimin = r2, rimax = r1);
    
    rimin < fRmin ? (rc_of_min = rc, fRmin = rimin) : fRmin;
    rimax > fRmax ? (rc_of_max = rc, fRmax = rimax) : fRmax;
  }
  
  fRmin -= rc_of_min;
  fRmax += rc_of_max;
  
  // to square the conformal plane
  double du = fUmax - fUmin;
  double dv = fVmax - fVmin;
  double delta = fabs(dv - du)/2.;
  du < dv ? (fUmin -= delta, fUmax += delta) : (fVmin -= delta, fVmax += delta);
  
  cout << "u_min " << fUmin << " u_max " << fUmax << endl;
  cout << "v_min " << fVmin << " v_max " << fVmax << endl;
  cout << "r_min " << fRmin << " r_max " << fRmax << endl;
  cout << "theta_min 0 theta_max 180" << endl;
  
  
}

void PndTrkTrackFinder::ComputeTraAndRot	(	PndTrkHit *	hit,
		Double_t &	delta,
		Double_t	trasl[2]
	)

Definition at line 5694 of file PndTrkTrackFinder.cxx.

References PndTrkHit::GetPosition().

Referenced by ClusterToConformal(), and Exec().

                                                                                           {
  
  trasl[0] = hit->GetPosition().X();
  trasl[1] = hit->GetPosition().Y();

  delta = 0.; // TMath::ATan2(hit->GetPosition().Y() - 0., hit->GetPosition().X() - 0.); // CHECK 
  
}

Int_t PndTrkTrackFinder::CountPossibleTracks

(

)

PndTrkClusterList clusterlist;

// get seeds *********************************************8 TObjArray seeds = fHitMap->GetSeeds(); neighborings = NULL;

int noftracks = nofhitsinlay[tmplayid] - isneigh; if(tmplayid != -1) cout << "CLUSTER CONTAINS @ LAYER " << tmplayid << " ACTUALLY " << nofhitsinlay[tmplayid] << " - " << isneigh << " = " << noftracks << " TRACKS" << endl; if(noftracks > maxnoftracks) maxnoftracks = noftracks;

Definition at line 6251 of file PndTrkTrackFinder.cxx.

References PndTrkCluster::AddHit(), counter, counter1, fTubeArray, PndTrkHitList::GetHit(), PndTrkCluster::GetHit(), PndSttTube::GetLayerID(), PndTrkHitList::GetNofHits(), PndTrkCluster::GetNofHits(), PndTrkHit::GetTubeID(), hit(), PndSttTube::IsNeighboring(), PndTrkHit::SetSortVariable(), PndTrkCluster::Sort(), and stthitlist.

                                             {
  // check how many neighboring tubes each skew 
  // tube on a layer has on that same layer
  // the total number of tubes on a layer minus the number 
  // of neighboring couples gives the number of tracks:
  // example 1 with 3 tracks:
  // OOO OO OOO are tube no.: 0 1 2   3 4  5 6 7
  // nof tubes on the layer = 8
  // calculation of neighborings:
  // 0 <--> 1
  // 1 <--> 2
  // 3 <--> 4
  // 5 <--> 6
  // 6 <--> 7
  // so, nof neigboging couples = 5
  // Then: noftubes (8) - nofcouples (5) = 3 tracks !!OK!!

  int nofhitsinlay[30]; // CHECK initialize this
  for(int ilay = 0; ilay < 30; ilay++) nofhitsinlay[ilay] = 0;
  PndTrkCluster cluster;
  for(int ihit = 0; ihit < stthitlist->GetNofHits(); ihit++) {
    PndTrkHit *hit = stthitlist->GetHit(ihit);
    PndSttTube *tube = (PndSttTube*) fTubeArray->At(hit->GetTubeID());
    hit->SetSortVariable(tube->GetLayerID());
    nofhitsinlay[tube->GetLayerID()]++;
    cluster.AddHit(hit);
    //    cout << "hit " << ihit << " " << tube->GetLayerID() << " " << nofhitsinlay[tube->GetLayerID()] << endl;
  }
  cluster.Sort();

  //for(int ihit = 0; ihit < cluster.GetNofHits(); ihit++) { //[R.K. 01/2017] unused variable?
    //PndTrkHit *hit = cluster.GetHit(ihit); //[R.K. 01/2017] unused variable?
    //PndSttTube *tube = (PndSttTube*) fTubeArray->At(hit->GetTubeID()); //[R.K. 01/2017] unused variable
    //    cout << "SORTED " << ihit << " " << hit->GetHitID() << " " << tube->GetLayerID() << endl;
  //} //[R.K. 01/2017] unused variable?

  int maxnoftracks = 1;
  int tmplayid = -1;
  int counter = 0, counter1 = 0;;
  int isneigh = 0;
  // loop over cluster hits
  for(int ihit = 0; ihit < cluster.GetNofHits(); ihit++) {
    PndTrkHit *hit = cluster.GetHit(ihit);
    counter++; 

    PndSttTube *tube = (PndSttTube*) fTubeArray->At(hit->GetTubeID());

    int layid = tube->GetLayerID();
    if(nofhitsinlay[layid] <= 1) continue;

    // new layer?
    if(layid != tmplayid) {
      isneigh = 0;
      tmplayid = layid;
      counter1 = 0;
      //        continue; //    break;
    }
    //    cout << "hit " << ihit << " on layid " << layid << "/ " <<  nofhitsinlay[layid] << endl;

    // count processed hits 
    // in this same layer
    counter1++;

    // if it is the last hit ==> all its
    // neighborings have already been taken
    // into account
    if(counter1 == nofhitsinlay[layid]) continue;

    for(int jhit = counter; jhit < counter + nofhitsinlay[layid] -  counter1; jhit++) {
      PndTrkHit *hit2 = cluster.GetHit(jhit);
      int tubeid2 =   hit2->GetTubeID();
      PndSttTube *tube2 = (PndSttTube*) fTubeArray->At(tubeid2);



      if(tube->GetLayerID() != tube2->GetLayerID()) cout << "ERROR" << tube->GetLayerID()  << " " << tube2->GetLayerID() << endl;
      //      cout << "compare " << ihit << "(" << hit->GetHitID() << "- " << hit->GetTubeID() << ") with " << jhit << " (" << hit2->GetHitID() << "- " << tubeid2 << ") from " << counter << " to " << counter + nofhitsinlay[layid] - 1 << endl;
      if(tube->IsNeighboring(tubeid2) == kTRUE) {
        isneigh++;
        //      cout << "isneigh " << isneigh << endl;
        //      // break;
      }
    }

    // if all the hits in the layer have been processed
    if(counter1 == nofhitsinlay[layid] - 1) {
      int noftracks = nofhitsinlay[layid] - isneigh;
      cout << "CLUSTER CONTAINS @ LAYER " << layid << " ACTUALLY " << nofhitsinlay[layid] << " - " << isneigh << " = " << noftracks << " TRACKS" << endl;
      if(noftracks > maxnoftracks) maxnoftracks = noftracks;
    }

  }
    
  
  cout << "THIS CLUSTER HAS A TOTAL OF " << maxnoftracks << " TRACKS" << endl;
  return maxnoftracks;
}

Int_t PndTrkTrackFinder::CountTracksInCluster

(

PndTrkCluster *

cluster

)

Definition at line 6358 of file PndTrkTrackFinder.cxx.

Referenced by CountTracksInSkewSector().

                                                                    {
  return CountTracksInCluster(cluster, 0);
}

Int_t PndTrkTrackFinder::CountTracksInCluster	(	PndTrkCluster *	cluster,
		Int_t	where
	)

int noftracks = nofhitsinlay[tmplayid] - isneigh; if(tmplayid != -1) cout << "CLUSTER CONTAINS @ LAYER " << tmplayid << " ACTUALLY " << nofhitsinlay[tmplayid] << " - " << isneigh << " = " << noftracks << " TRACKS" << endl; if(noftracks > maxnoftracks) maxnoftracks = noftracks;

Definition at line 6367 of file PndTrkTrackFinder.cxx.

References counter, counter1, fTubeArray, PndTrkCluster::GetHit(), PndSttTube::GetLayerID(), PndTrkCluster::GetNofHits(), PndTrkHit::GetTubeID(), hit(), PndSttTube::IsNeighboring(), PndTrkHit::IsSttParallel(), PndTrkHit::SetSortVariable(), and PndTrkCluster::Sort().

                                                                                 {
  // where means:
  // 0 all: parallel & skewed sectors
  // 1: only skewed

  // check how many neighboring tubes each skew 
  // tube on a layer has on that same layer
  // the total number of tubes on a layer minus the number 
  // of neighboring couples gives the number of tracks:
  // example 1 with 3 tracks:
  // OOO OO OOO are tube no.: 0 1 2   3 4  5 6 7
  // nof tubes on the layer = 8
  // calculation of neighborings:
  // 0 <--> 1
  // 1 <--> 2
  // 3 <--> 4
  // 5 <--> 6
  // 6 <--> 7
  // so, nof neigboging couples = 5
  // Then: noftubes (8) - nofcouples (5) = 3 tracks !!OK!!
  cout << "COUNT TRACKS IN SKEW SECTOR" << endl;
  int nofhitsinlay[30]; // CHECK initialize this
  for(int ilay = 0; ilay < 30; ilay++) nofhitsinlay[ilay] = 0;

  for(int ihit = 0; ihit < cluster->GetNofHits(); ihit++) {
    PndTrkHit *hit = cluster->GetHit(ihit);
    PndSttTube *tube = (PndSttTube*) fTubeArray->At(hit->GetTubeID());
    hit->SetSortVariable(tube->GetLayerID());
    nofhitsinlay[tube->GetLayerID()]++;
    //    cout << "hit " << ihit << " " << tube->GetLayerID() << " " << nofhitsinlay[tube->GetLayerID()] << endl;

  }
  cluster->Sort();

  //for(int ihit = 0; ihit < cluster->GetNofHits(); ihit++) { //[R.K. 01/2017] unused variable?
    //PndTrkHit *hit = cluster->GetHit(ihit); //[R.K. 01/2017] unused variable?
    //PndSttTube *tube = (PndSttTube*) fTubeArray->At(hit->GetTubeID()); //[R.K. 01/2017] unused variable
    //    cout << "SORTED " << ihit << " " << hit->GetHitID() << " " << tube->GetLayerID() << endl;
  //} //[R.K. 01/2017] unused variable?

  int maxnoftracks = 1;
  int tmplayid = -1;
  int counter = 0, counter1 = 0;;
  int isneigh = 0;
  // loop over cluster hits
  for(int ihit = 0; ihit < cluster->GetNofHits(); ihit++) {
    PndTrkHit *hit = cluster->GetHit(ihit);
    counter++; 

    // which sector?
    if(where == 1 && hit->IsSttParallel() == kTRUE) continue;
    PndSttTube *tube = (PndSttTube*) fTubeArray->At(hit->GetTubeID());

    int layid = tube->GetLayerID();
    if(nofhitsinlay[layid] <= 1) continue;

    // new layer?
    if(layid != tmplayid) {
      isneigh = 0;
      tmplayid = layid;
      counter1 = 0;
      //        continue; //    break;
    }
    //    cout << "hit " << ihit << " on layid " << layid << "/ " <<  nofhitsinlay[layid] << endl;

    // count processed hits 
    // in this same layer
    counter1++;

    // if it is the last hit ==> all its
    // neighborings have already been taken
    // into account
    if(counter1 == nofhitsinlay[layid]) continue;

    for(int jhit = counter; jhit < counter + nofhitsinlay[layid] -  counter1; jhit++) {
      PndTrkHit *hit2 = cluster->GetHit(jhit);
      int tubeid2 =   hit2->GetTubeID();
      PndSttTube *tube2 = (PndSttTube*) fTubeArray->At(tubeid2);



      if(tube->GetLayerID() != tube2->GetLayerID()) cout << "ERROR" << tube->GetLayerID()  << " " << tube2->GetLayerID() << endl;
      //      cout << "compare " << ihit << "(" << hit->GetHitID() << "- " << hit->GetTubeID() << ") with " << jhit << " (" << hit2->GetHitID() << "- " << tubeid2 << ") from " << counter << " to " << counter + nofhitsinlay[layid] - 1 << endl;
      if(tube->IsNeighboring(tubeid2) == kTRUE) {
        isneigh++;
        //      cout << "isneigh " << isneigh << endl;
        //      // break;
      }
    }

    // if all the hits in the layer have been processed
    if(counter1 == nofhitsinlay[layid] - 1) {
      int noftracks = nofhitsinlay[layid] - isneigh;
      cout << "CLUSTER CONTAINS @ LAYER " << layid << " ACTUALLY " << nofhitsinlay[layid] << " - " << isneigh << " = " << noftracks << " TRACKS" << endl;
      if(noftracks > maxnoftracks) maxnoftracks = noftracks;
    }

  }
    
  
  cout << "THIS CLUSTER HAS A TOTAL OF " << maxnoftracks << " TRACKS" << endl;
  return maxnoftracks;
}

Int_t PndTrkTrackFinder::CountTracksInSkewSector

(

PndTrkCluster *

cluster

)

Definition at line 6363 of file PndTrkTrackFinder.cxx.

References CountTracksInCluster().

                                                                       {
  return CountTracksInCluster(cluster, 1); 
}

PndTrkCluster * PndTrkTrackFinder::CreateClusterAroundTrack

(

PndTrkTrack *

track

)

Definition at line 6544 of file PndTrkTrackFinder.cxx.

References PndTrkCluster::AddHit(), conform, display, PndTrkCluster::DoesContain(), PndTrkTrack::Draw(), PndTrkCluster::Draw(), fabs(), fDisplayOn, FromRealToConformalTrack(), fTubeArray, PndTrkTrack::GetCenter(), PndTrkTrack::GetCluster(), PndTrkConformalTransform::GetConformalHit(), PndTrkConformalTransform::GetConformalSttHit(), PndTrkHitList::GetHit(), PndTrkCluster::GetHit(), PndSttTube::GetLayerID(), PndTrkHitList::GetNofHits(), PndTrkCluster::GetNofHits(), PndTrkTrack::GetRadius(), PndSttTube::GetSectorID(), PndTrkHit::GetTubeID(), PndTrkConformalHit::GetU(), PndTrkConformalHit::GetV(), PndTrkHit::GetXYDistance(), hit(), PndTrkHit::IsSttParallel(), R, CAMath::Sqrt(), and stthitlist.

                                                                              {

  double R = track->GetRadius();
  double xc = track->GetCenter().X();
  double yc = track->GetCenter().Y();
  double fitm, fitp;
  FromRealToConformalTrack(xc, yc, R, fitm, fitp);


  PndTrkCluster cluster = track->GetCluster();

  // create cluster depending on fitting
  double rmin = R - R * 0.05; // CHECK 5%?
  double rmax = R + R * 0.05; // "      "
  
  
  if(fDisplayOn) {
    display->cd(1);
    track->Draw(kBlue);
    
    TArc *arcmin = new TArc(xc, yc, rmin);
    TArc *arcmax = new TArc(xc, yc, rmax);
      
    arcmin->SetFillStyle(0);
    arcmax->SetFillStyle(0);
    arcmin->SetLineColor(kGreen);
    arcmax->SetLineColor(kBlue);

    //    arcmin->Draw("SAME");
    //     arcmax->Draw("SAME");

    display->Update();
    display->Modified();
    char goOnChar;
    cout << "want to go to new cluster?" << endl;
    cin >> goOnChar;
  }
    
  // create cluster depending on fitting
  PndTrkCluster *thiscluster = new PndTrkCluster();
  int startsecid = 1000, endsecid = -1, startlayid = 1000, endlayid = -1;
  double totaldistanceconf = 0;//,  chi2 = 0; //[R.K. 01/2017] unused variable
  // clean existing cluster
  for(int ihit = 0; ihit < cluster.GetNofHits(); ihit++) {
    PndTrkHit *hit = cluster.GetHit(ihit);
    PndTrkConformalHit chit;
    if(hit->IsSttParallel()) chit = conform->GetConformalSttHit(hit);
    else chit = conform->GetConformalHit(hit); // CHECK if skew?
    double distanceconf = fabs((chit.GetV() - fitm * chit.GetU() - fitp)/ TMath::Sqrt(fitm * fitm + 1));
 

    double distance = hit->GetXYDistance(TVector3(xc, yc, 0.));
    //    cout << "distance " << distance << " " << rmin << " " << rmax << " " << distanceconf << endl;
    if(distance <= rmax && distance >= rmin) {
      thiscluster->AddHit(hit);
      if(fDisplayOn) {
        display->cd(1);
        //      hit->DrawTube(kGreen);
        display->Update();
        display->Modified();
        //        char goOnChar;
        //        cout << "want to go to next hitcluster2?" << endl;
        //        cin >> goOnChar;
      } 
      
      PndSttTube *tube = (PndSttTube*) fTubeArray->At(hit->GetTubeID());
      
      if(tube->GetLayerID() < startlayid)  startlayid = tube->GetLayerID();
      if(tube->GetSectorID() < startsecid) startsecid = tube->GetSectorID();
      if(tube->GetLayerID() > endlayid)  endlayid = tube->GetLayerID();
      if(tube->GetSectorID() > endsecid) endsecid = tube->GetSectorID();
      
      //      cout << "hit " << ihit << " " << hit->GetHitID() << " " << endsecid << " " << endlayid << endl;
      totaldistanceconf += distanceconf;

    }
  }

  //double meandistanceconf = totaldistanceconf/thiscluster->GetNofHits(); //[R.K. 01/2017] unused variable

//   cout << "START SECTOR " << startsecid << " END SECTOR " << endsecid << endl;
//   cout << "START LAYER  " << startlayid << " END LAYER  " << endlayid << endl;

  if(fDisplayOn) {
    display->cd(1);
    thiscluster->Draw(kRed);
    display->Update();
    display->Modified();
    char goOnChar;
    cout << "want to go to next cluster1?" << endl;
    cin >> goOnChar;
  } 


  if(startlayid != 0 || endlayid != 23) {
    for(int ihit = 0; ihit < stthitlist->GetNofHits(); ihit++) {
      PndTrkHit *hit = stthitlist->GetHit(ihit);
      if(cluster.DoesContain(hit)) continue;     
      PndSttTube *tube = (PndSttTube*) fTubeArray->At(hit->GetTubeID());
     
      double distance = hit->GetXYDistance(TVector3(xc, yc, 0.));
      if(distance <= rmax && distance >= rmin) {
        //      cout << endl;
        //      cout << "other sector " << tube->GetSectorID() << " " << tube->GetLayerID();

        if(tube->GetSectorID() == 0 || tube->GetSectorID() == 5) {
          if(startsecid != 5 && endsecid != 5 && startsecid != 0 && endsecid != 0) continue; 
        }
        else if(fabs(tube->GetSectorID() - startsecid) > 1 && fabs(tube->GetSectorID() - endsecid) > 1) continue;
          
        if(tube->GetLayerID() > startlayid && tube->GetLayerID() < endlayid) continue;
        PndTrkConformalHit chit;
        if(hit->IsSttParallel()) chit = conform->GetConformalSttHit(hit);
        else chit = conform->GetConformalHit(hit); // CHECK if skew?
        //double distanceconf = fabs((chit.GetV() - fitm * chit.GetU() - fitp)/ TMath::Sqrt(fitm * fitm + 1)); //[R.K. 01/2017] unused variable
   
        //      cout << "->distance " << distance << " (" << meandistanceconf << ") " << rmin << " " << rmax << " " << distanceconf << endl;
 


        if(fDisplayOn) {
          display->cd(1);
          //      hit->DrawTube(kBlue);
          display->Update();
          display->Modified();
          //char goOnChar; //[R.K. 01/2017] unused variable
          cout << "want to go to next?" << endl;
          // cin >> goOnChar;
        } 

        //      cout << "tubeid " << hit->GetTubeID() << " " << tube->GetLayerID() << endl;
        thiscluster->AddHit(hit);
        //      cout << " ***";


      }
    }
  }
  cout << endl;

  if(fDisplayOn) {
    display->cd(1);
    thiscluster->Draw(kRed);
    display->Update();
    display->Modified();
    char goOnChar;
    cout << "want to go to next cluster2?" << endl;
    cin >> goOnChar;
  } 
  // ---------------------------

  return thiscluster;
}

PndTrkClusterList PndTrkTrackFinder::CreateFullClusterization

(

)

Definition at line 6017 of file PndTrkTrackFinder.cxx.

References PndTrkClusterList::AddCluster(), PndTrkCluster::AddHit(), display, PndTrkCluster::DoesContain(), PndTrkHit::Draw(), fDisplayOn, fHitMap, PndTrkNeighboringMap::GetCandseeds(), PndTrkCluster::GetHit(), PndTrkNeighboringMap::GetNeighboringsToHit(), PndTrkHitList::GetNofHits(), PndTrkCluster::GetNofHits(), PndTrkNeighboringMap::GetSeeds(), PndTrkHit::GetTubeID(), PndTrkHit::IsUsed(), and stthitlist.

                                                              {
  PndTrkClusterList clusterlist;

  cout << "CLUSTERIZATION <---------------" << endl;

  // get seeds *********************************************8
  TObjArray seeds = fHitMap->GetSeeds();
  TObjArray neighborings;
  int clusterizedhits = 0;
  // ----------------- loop over seeds
  for(int iseed = 0; iseed < seeds.GetEntriesFast(); iseed++) {
    PndTrkCluster *cluster = new PndTrkCluster();
    PndTrkHit *seedhit = (PndTrkHit*) seeds.At(iseed);
    
    // is it already used
    if(seedhit->IsUsed() == kTRUE) continue;
    
    int seedtubeID = seedhit->GetTubeID();
    //PndSttTube *seedtube = (PndSttTube*) fTubeArray->At(seedtubeID); //[R.K. 01/2017] unused variable?
    //int seedlayerID = seedtube->GetLayerID(); //[R.K. 01/2017] unused variable
    
    // add hit to cluster
    cluster->AddHit(seedhit);

    if(fDisplayOn) {
      display->cd(1);
      char goOnChar;
      cin >> goOnChar;
      cout << "SEED " << seedtubeID << endl; 
      seedhit->Draw(kRed);
      display->Update();
      display->Modified();
    }

    //    // add cluster to clusterlist
    //    clusterlist.AddCluster(cluster);

    int nlastadded = 1, addedcounter = 0;
    // cout << "nlastadded to " << seedhit->GetHitID() << "(" << seedtubeID << ")" << " " << nlastadded << endl;
    //    if(nlastadded == 0) continue;
    while(nlastadded > 0) {
      // loop on the last nlastadded hits to this cluster
      // example: add to a 5 hits cluster: 0 1 2 3 4
      // the hits no. 5, 6, 7
      // --> nlastadded = 3 & nof hits in cluster = 5 + 3 = 8
      // 7 6 5 = 8 - 3
      // here loop from hit 8 - 1 = 7 to hit 8 - 3 = 5

      addedcounter = 0;

      // cout << "@@@@@@@@@@@@@@@@@ loop on the last " << nlastadded << " hits of cluster" << endl;
      //   for(int ihit = 0; ihit < cluster->GetNofHits(); ihit++) {
      //        PndTrkHit *hit = cluster->GetHit(ihit);
      //        cout << " " << hit->GetHitID() ;
      //       }
      //       cout << endl;


      int nclusterhits = cluster->GetNofHits();
      for(int iadded = nclusterhits - 1; iadded >= (nclusterhits - nlastadded); iadded--) {
        PndTrkHit *addedhit = cluster->GetHit(iadded);
        neighborings = fHitMap->GetNeighboringsToHit(addedhit);
        if(neighborings.GetEntriesFast() == 0) continue;
        //      cout << "hit " << addedhit->GetHitID() << "(" << addedhit->GetTubeID() << ")" << " has " << neighborings->GetEntriesFast()  << " neighborigns: " << endl;

        // loop over the neighborings and add them all
        for(int ineigh = 0; ineigh < neighborings.GetEntriesFast(); ineigh++)
          {
            PndTrkHit *neighhit = (PndTrkHit*) neighborings.At(ineigh);
            //  cout << " " << neighhit->GetHitID() << "(" << neighhit->GetTubeID() << ")";
            if(cluster->DoesContain(neighhit) == kTRUE) {
              //  cout << "UN-ADDED, in cluster already" << endl;
              continue;
            }
            cluster->AddHit(neighhit);
            addedcounter++;
            //  cout << " - ADDED; ";

            if(fDisplayOn) {
              display->cd(1);
              char goOnChar;
              cin >> goOnChar;
              neighhit->Draw(kGreen);
              cout << "nof hits " << cluster->GetNofHits() << endl;
              // cluster->LightUp();
              display->Update();
              display->Modified();
              cin >> goOnChar;
            }
            
          }


      }
      //       cout << endl;
      nlastadded = addedcounter;
    }
    //     cout << "NEXT seed " << endl;
    // add cluster to clusterlist
    if(cluster->GetNofHits() > 3) {
      clusterlist.AddCluster(cluster); // CHECK
      clusterizedhits += cluster->GetNofHits();
    }
    
  }

  // -----------------------------------------
  cout << "NOF TOTAL HITS " << stthitlist->GetNofHits() << " NOF CLUSTERIZED HITS " <<  clusterizedhits << endl;
  if(stthitlist->GetNofHits() - clusterizedhits > 6) {
    // get candseeds *********************************************8
    TObjArray candseeds = fHitMap->GetCandseeds();
    // ----------------- loop over cand seeds

    cout << "we have " << candseeds.GetEntriesFast() << " canduidate seeds" << endl;
    for(int jseed = 0; jseed < candseeds.GetEntriesFast(); jseed++) {
      PndTrkCluster *cluster = new PndTrkCluster();
      PndTrkHit *cseedhit = (PndTrkHit*) candseeds.At(jseed);
    
      // is it already used

      if(fDisplayOn) {
        display->cd(1);
        char goOnChar;
        cin >> goOnChar;
        cout << "CSEED " << endl;
        cseedhit->Draw(kBlue);
        display->Update();
        display->Modified();
      }


      if(cseedhit->IsUsed() == kTRUE) { cout << "already" << endl ; continue; }
    
      int cseedtubeID = cseedhit->GetTubeID();
      //PndSttTube *cseedtube = (PndSttTube*) fTubeArray->At(cseedtubeID); //[R.K. 01/2017] unused variable?
      //int cseedlayerID = cseedtube->GetLayerID(); //[R.K. 01/2017] unused variable
    
      // add hit to cluster
      cluster->AddHit(cseedhit);

      if(fDisplayOn) {
        display->cd(1);
        char goOnChar;
        cin >> goOnChar;
        cout << "SEED " << cseedtubeID << endl; 
        cseedhit->Draw(kRed);
        display->Update();
        display->Modified();
      }

      //    // add cluster to clusterlist
      //    clusterlist.AddCluster(cluster);

      int nlastadded = 1, addedcounter = 0;
      // cout << "nlastadded to " << seedhit->GetHitID() << "(" << seedtubeID << ")" << " " << nlastadded << endl;
      //    if(nlastadded == 0) continue;
      while(nlastadded > 0) {
        // loop on the last nlastadded hits to this cluster
        // example: add to a 5 hits cluster: 0 1 2 3 4
        // the hits no. 5, 6, 7
        // --> nlastadded = 3 & nof hits in cluster = 5 + 3 = 8
        // 7 6 5 = 8 - 3
        // here loop from hit 8 - 1 = 7 to hit 8 - 3 = 5

        addedcounter = 0;

        // cout << "@@@@@@@@@@@@@@@@@ loop on the last " << nlastadded << " hits of cluster" << endl;
        //   for(int ihit = 0; ihit < cluster->GetNofHits(); ihit++) {
        //      PndTrkHit *hit = cluster->GetHit(ihit);
        //      cout << " " << hit->GetHitID() ;
        //       }
        //       cout << endl;


        int nclusterhits = cluster->GetNofHits();
        for(int iadded = nclusterhits - 1; iadded >= (nclusterhits - nlastadded); iadded--) {
          PndTrkHit *addedhit = cluster->GetHit(iadded);
          neighborings = fHitMap->GetNeighboringsToHit(addedhit);
          if(neighborings.GetEntriesFast() == 0) continue;
          //    cout << "hit " << addedhit->GetHitID() << "(" << addedhit->GetTubeID() << ")" << " has " << neighborings->GetEntriesFast()  << " neighborigns: " << endl;

          // loop over the neighborings and add them all
          for(int ineigh = 0; ineigh < neighborings.GetEntriesFast(); ineigh++)
            {
              PndTrkHit *neighhit = (PndTrkHit*) neighborings.At(ineigh);
              //  cout << " " << neighhit->GetHitID() << "(" << neighhit->GetTubeID() << ")";
              if(cluster->DoesContain(neighhit) == kTRUE) {
                //  cout << "UN-ADDED, in cluster already" << endl;
                continue;
              }
              cluster->AddHit(neighhit);
              addedcounter++;
              //  cout << " - ADDED; ";

              if(fDisplayOn) {
                display->cd(1);
                char goOnChar;
                cin >> goOnChar;
                neighhit->Draw(kGreen);
                cout << "nof hits " << cluster->GetNofHits() << endl;
                // cluster->LightUp();
                display->Update();
                display->Modified();
                cin >> goOnChar;
              }
            
            }


        }
        //       cout << endl;
        nlastadded = addedcounter;
      }   

      if(cluster->GetNofHits() > 3) {
        clusterlist.AddCluster(cluster); // CHECK
      }

    }
  }
  // -----------------------------------------
  return clusterlist;
}

PndTrkCluster PndTrkTrackFinder::CreateSkewHitList

(

PndTrkTrack *

track

)

Definition at line 7031 of file PndTrkTrackFinder.cxx.

References a, PndTrkCluster::AddHit(), b, PndTrkTrack::ComputePhi(), PndTrkTools::ComputeSegmentCircleIntersection(), PndTrkTools::ComputeTangentInPoint(), CAMath::Cos(), display, Double_t, dx, dy, fDisplayOn, fTubeArray, PndTrkTrack::GetCenter(), PndSttTube::GetHalfLength(), PndTrkHitList::GetHit(), PndTrkHit::GetIsochrone(), PndTrkHitList::GetNofHits(), PndSttTube::GetPosition(), PndTrkTrack::GetRadius(), PndTrkHit::GetTubeID(), PndSttTube::GetWireDirection(), hit(), PndTrkHit::IsSttSkew(), Pi, R, CAMath::Sin(), SKEW_ANGLE, CAMath::Sqrt(), stthitlist, t, tools, and y0.

                                                                     {

  double xc = track->GetCenter().X();
  double yc = track->GetCenter().Y();
  double R = track->GetRadius();
  PndTrkCluster skewhitlist;

  //double phimin = 400, phimax = -1, zmin = 1000, zmax = -1; //[R.K. 01/2017] unused variable
  for(int ihit = 0; ihit < stthitlist->GetNofHits(); ihit++) {
    PndTrkHit *hit = stthitlist->GetHit(ihit);  
    if(hit->IsSttSkew() == kFALSE) continue;
      
    int tubeID = hit->GetTubeID();
    PndSttTube *tube = (PndSttTube*) fTubeArray->At(tubeID);
   
    TVector3 wireDirection = tube->GetWireDirection();
    Double_t halflength = tube->GetHalfLength();
      
    TVector3 first  = tube->GetPosition() + wireDirection * halflength; // CHECK
    TVector3 second = tube->GetPosition() - wireDirection * halflength; // CHECK
    //    if(fDisplayOn) {
    //  char goOnChar;
    //          display->cd(1);
    //  TLine *l = new TLine(first.X(), first.Y(), second.X(), second.Y());
    //  l->SetLineColor(kBlue);
    //  l->Draw("SAME");
    //  display->Update();
    //  display->Modified();
    //  cin >> goOnChar;   
    //       }
    //    double m1 = (first - second).Y()/(first - second).X();
    //    double q1 = first.Y() - m1 * first.X();
      
    // 1. compute intersection between the track circle and the wire
    TVector2 intersection1, intersection2;
    Int_t nofintersections = tools->ComputeSegmentCircleIntersection(TVector2(first.X(), first.Y()), TVector2(second.X(), second.Y()), xc, yc, R, intersection1, intersection2);
      
    if(nofintersections == 0) continue;
    if(nofintersections >= 2) {
      cout << "ERROR: MORE THAN 1 INTERSECTION!!" << endl;
      continue; // CHECK
    }
    
    if(fDisplayOn) {
      //char goOnChar; //[R.K. 01/2017] unused variable
      display->cd(1);
      TLine *l = new TLine(first.X(), first.Y(), second.X(), second.Y());
      l->SetLineColor(kBlue);
      l->Draw("SAME");

      TMarker *mrk = new TMarker(intersection1.X(), intersection1.Y(), 20);
      mrk->SetMarkerColor(kBlue);
      mrk->Draw("SAME");

      display->Update();
      display->Modified();


      //        cin >> goOnChar;   
    }
  

    // 2. find the tangent to the track in the intersection point
    // tangent approximation
    TVector2 tangent = tools->ComputeTangentInPoint(xc, yc, intersection1);
       
    // 3. rotate clockwise the tangent/point/(wire, not explicitely)
    // in order to have the wire parallel to the x axis;
    // then translate everything to have the wire ON the x axis
    double beta = wireDirection.Phi();
    if(beta < 0) beta += TMath::Pi();
    // ... rotate the tangent
    double rtx = TMath::Cos(beta) * tangent.X() + TMath::Sin(beta) * tangent.Y();
    double rty = TMath::Cos(beta) * tangent.Y() - TMath::Sin(beta) * tangent.X();
    TVector2 rottangent(rtx, rty);
    rottangent = rottangent.Unit();
    // ... rotate the point
    double rx = TMath::Cos(beta) * intersection1.X() + TMath::Sin(beta) * intersection1.Y();
    double ry = TMath::Cos(beta) * intersection1.Y() - TMath::Sin(beta) * intersection1.X();
       
    // translation
    Double_t deltay = ry;
    rty -= deltay;
    ry -= deltay;

    // rotm, rotp
    Double_t rotm = rottangent.Y()/rottangent.X();
    Double_t rotp = ry - rotm * rx;

    // ellipsis
    double a = hit->GetIsochrone() * TMath::Cos(SKEW_ANGLE); // CHECK skew angle hard coded
    double b = hit->GetIsochrone();

    // center of ellipsis
    Double_t x0a, x0b, y0;
    y0 = 0.;
    x0a = (-rotp + TMath::Sqrt(b * b + a * a * rotm * rotm)) / rotm;
    x0b = (-rotp - TMath::Sqrt(b * b + a * a * rotm * rotm)) / rotm;
 
    // intersection point
    double intxa = (x0a * b * b - rotm * rotp * a * a) / (b * b + rotm * rotm * a * a);
    double intya = rotm * intxa + rotp;
    double intxb = (x0b * b * b - rotm * rotp * a * a) / (b * b + rotm * rotm * a * a);
    double intyb = rotm * intxb + rotp;
   
    // 4. retraslate/rerotate all back to the original plane
    // retranslate
    y0 += deltay; 
    intya  += deltay; 
    intyb  += deltay; 
   
    // rerotate
    double x0anew = TMath::Cos(beta) * x0a - TMath::Sin(beta) * y0;
    double y0anew = TMath::Cos(beta) * y0 + TMath::Sin(beta) * x0a;
    double x0bnew = TMath::Cos(beta) * x0b - TMath::Sin(beta) * y0;
    double y0bnew = TMath::Cos(beta) * y0 + TMath::Sin(beta) * x0b;
   
    double intxanew = TMath::Cos(beta) * intxa - TMath::Sin(beta) * intya;
    double intyanew = TMath::Cos(beta) * intya + TMath::Sin(beta) * intxa;
    double intxbnew = TMath::Cos(beta) * intxb - TMath::Sin(beta) * intyb;
    double intybnew = TMath::Cos(beta) * intyb + TMath::Sin(beta) * intxb;
   
    intxa = intxanew;
    intya = intyanew;
    intxb = intxbnew;
    intyb = intybnew;

    // now we have x0a, y0a, center of the 1st ellipse
    // and x0b, y0b, center of the 2nd ellipse
    x0a = x0anew;
    double y0a = y0anew;
    x0b = x0bnew;
    double y0b = y0bnew;

    if(fDisplayOn) {
      //char goOnChar; //[R.K. 01/2017] unused variable
      display->cd(1);

      TEllipse *ell1 = new TEllipse(x0a, y0a, a, b, 0, 360, -beta);
      ell1->SetFillStyle(0);
      ell1->SetLineColor(4);
      ell1->Draw("SAME");
      TEllipse *ell2 = new TEllipse(x0b, y0b, a, b, 0, 360, -beta);
      ell2->SetFillStyle(0);
      ell2->SetLineColor(6);
      ell2->Draw("SAME");

      TMarker *mrkinta = new TMarker(intxa, intya, 20);
      mrkinta->SetMarkerColor(4);
      mrkinta->Draw("SAME");
      TMarker *mrkintb = new TMarker(intxb, intyb, 20);
      mrkintb->SetMarkerColor(6);
      mrkintb->Draw("SAME");
      //         cin >> goOnChar;   
    }

    // 5. calculate z coordinate for each intersection
       
    // calculate z0a, z0b of the center of the ellipse
    Double_t t = ((x0a + y0a) - (first.X() + first.Y())) /  ((second.X() - first.X()) + (second.Y() - first.Y()));
    Double_t z0a = first.Z() + (second.Z() - first.Z()) * t;
    //    cout << "0 : calculate t, z0a " << t << " " << z0a << endl;
 
    t = ((x0b + y0b) - (first.X() + first.Y())) /  ((second.X() - first.X()) + (second.Y() - first.Y()));
    Double_t z0b = first.Z() + (second.Z() - first.Z()) * t;
 
    TVector3 center1(x0a, y0a, z0a);
    TVector3 center2(x0b, y0b, z0b);
    //   if(fDisplayOn) {
    //  char goOnChar;
    //  display->cd(3);
    //  //      cout << "COMPUTE Z COORDINATE" << endl;
    //  DrawZGeometry();
    //  TLine *linezx = new TLine(first.X(), first.Z(), second.X(), second.Z());
    //  linezx->Draw("SAME");
    //  TMarker *mrkza = new TMarker(x0a, z0a, 20);
    //  mrkza->SetMarkerColor(4);
    //  mrkza->Draw("SAME");
    //  TMarker *mrkzb = new TMarker(x0b, z0b, 20);
    //  mrkzb->SetMarkerColor(6);
    //  mrkzb->Draw("SAME");
    //  //       cin >> goOnChar;   
    //       }

    // calculate the z of the intersection ON the ellipse (CHECK this step calculations!)
    double dx = intxa - x0a;
    double dy = intya - y0a;
    TVector3 dxdy(dx, dy, 0.0);

    TVector3 tfirst = first + dxdy;
    TVector3 tsecond = second + dxdy;

    t = ((intxa + intya) - (tfirst.X() + tfirst.Y())) /  ((tsecond.X() - tfirst.X()) + (tsecond.Y() - tfirst.Y()));
    double intza = tfirst.Z() + (tsecond.Z() - tfirst.Z()) * t;
    if(fDisplayOn) {
      //char goOnChar; //[R.K. 01/2017] unused variable
      display->cd(3);
      TLine *linezx1 = new TLine(tfirst.X(), tfirst.Z(), tsecond.X(), tsecond.Z());
      linezx1->SetLineStyle(1);
      linezx1->Draw("SAME");
      TMarker *mrkza1 = new TMarker(intxa, intza, 20);
      mrkza1->SetMarkerColor(kBlue - 9);
      mrkza1->Draw("SAME");
      // cin >> goOnChar;   
    }

    tfirst = first - dxdy;
    tsecond = second - dxdy;

    t = ((intxb + intyb) - (tfirst.X() + tfirst.Y())) /  ((tsecond.X() - tfirst.X()) + (tsecond.Y() - tfirst.Y()));
    double intzb = tfirst.Z() + (tsecond.Z() - tfirst.Z()) * t;
 
    TVector3 fin_intersection1(intxa, intya, intza);
    TVector3 fin_intersection2(intxb, intyb, intzb);

    //   if(fDisplayOn) {
    //  char goOnChar;
    //  display->cd(3);
    //  TLine *linezx2 = new TLine(tfirst.X(), tfirst.Z(), tsecond.X(), tsecond.Z());
    //  linezx2->SetLineStyle(1);
    //  linezx2->Draw("SAME");
    //  TMarker *mrkzb1 = new TMarker(intxb, intzb, 20);
    //  mrkzb1->SetMarkerColor(kMagenta - 7);
    //  mrkzb1->Draw("SAME");
    //  //       cin >> goOnChar;   
    //       }
    //        int1.SetXYZ(intxa, intya, intza);
    //        int2.SetXYZ(intxb, intyb, intzb);
    //        errz = fabs(intza - intzb)/2.   ;
   
    // CHECK to be changed
    int trackID = 1;
    double phi1 = track->ComputePhi(fin_intersection1);
    double phi2 = track->ComputePhi(fin_intersection2);

    PndTrkSkewHit *skewhit = new PndTrkSkewHit(*hit, trackID, center1, fin_intersection1, phi1, center2, fin_intersection2, phi2, a, b, -1, beta);
    //      skewhit->Print();
    skewhitlist.AddHit(skewhit);

   
  }
  //     cout << "PHI: " << phimin << " " << phimax << endl;
  //     cout << "Z  : " << zmin << " " << zmax << endl;


  return skewhitlist;
}

void PndTrkTrackFinder::DeletePrimaryHits ( )

inline

Definition at line 136 of file PndTrkTrackFinder.h.

References fDelPrim.

{ fDelPrim = kTRUE; }

void PndTrkTrackFinder::DrawConfHit	(	double	x,
		double	y,
		double	r,
		int	marker = 2
	)

Definition at line 5516 of file PndTrkTrackFinder.cxx.

References display.

Referenced by FillLegendreHisto().

                                                                            {
  display->cd(2);
  if(r >= 0) {
    TArc *arc = new TArc(u, v, r);
    arc->SetFillStyle(0);
    arc->Draw("SAME");
  }
  else {
    TMarker *mrk = new TMarker(u, v, marker);
    mrk->Draw("SAME");
  }
  //  display->Update();
  //   display->Modified();
}

void PndTrkTrackFinder::DrawGeometry

(

)

Definition at line 5368 of file PndTrkTrackFinder.cxx.

References display, fTubeArray, PndSttTube::GetPosition(), hxy, and PndSttTube::IsParallel().

Referenced by Refresh().

                                     {

  if(hxy == NULL)  hxy = new TH2F("hxy", "xy plane", 110, -55, 55, 110, -55, 55);
  else hxy->Reset();
  display->cd(1);
  hxy->SetStats(kFALSE);
  hxy->Draw();

  // draw all the tubes
  for(int itube = 1; itube < fTubeArray->GetEntriesFast(); itube++) {
    PndSttTube *tube = (PndSttTube*) fTubeArray->At(itube);
    if(tube->IsParallel()) {
      TArc * arc = new TArc(tube->GetPosition().X(), tube->GetPosition().Y(), 0.5);
      arc->SetFillStyle(0);
      arc->SetLineColor(kCyan - 10);
      //       if(tube->GetLayerID() == 0 || tube->GetLayerID() == 7 || tube->GetLayerID() == 16 || tube->GetLayerID() == 20) arc->SetFillColor(kRed);
      //       else         arc->SetFillStyle(0);

      arc->Draw("SAME");
    }
    else {
      TMarker *mrk = new TMarker(tube->GetPosition().X(), tube->GetPosition().Y(), 6);
   
      mrk->SetMarkerColor(kCyan - 10);
      mrk->Draw("SAME");
    }
  }
  // ............................
 
  display->Update();
  display->Modified();  
 
}

void PndTrkTrackFinder::DrawGeometryConf	(	double	x1,
		double	x2,
		double	y1,
		double	y2
	)

Definition at line 5402 of file PndTrkTrackFinder.cxx.

References display, and huv.

Referenced by Exec(), LegendreFit(), and RePrepareLegendre().

                                                                                   {
  // CHECK
  //char goOnChar; //[R.K. 01/2017] unused variable
  //  cout << "DRAWING GEOMETRY CONF" << endl;
  // cin >> goOnChar;
  
  // CHECK previous calculations, now not used;
  if(huv == NULL)  huv = new TH2F("huv", "uv plane", 100, x1, x2, 100, y1, y2);
  else {
    huv->Reset(); 
    huv->GetXaxis()->SetLimits(x1, x2);
    huv->GetYaxis()->SetLimits(y1, y2);
  }
  display->cd(2);
  huv->Draw();
  display->Update();
  display->Modified();  
 
}

void PndTrkTrackFinder::DrawHits

(

PndTrkHitList *

hitlist

)

Definition at line 5361 of file PndTrkTrackFinder.cxx.

References display, and PndTrkHitList::Draw().

Referenced by Refresh().

                                                       {
  display->cd(1);
  hitlist->Draw();
  display->Update();
  display->Modified();
}

void PndTrkTrackFinder::DrawLegendreHisto

(

)

Definition at line 5346 of file PndTrkTrackFinder.cxx.

References display, PndTrkLegendreTransform::Draw(), and legendre.

Referenced by Exec(), and ExtractLegendre().

                                          {
  display->cd(3);
  legendre->Draw();
  display->Update();
  display->Modified();
}

void PndTrkTrackFinder::DrawLists

(

)

Definition at line 5423 of file PndTrkTrackFinder.cxx.

References counter, display, fHitMap, fTubeArray, PndTrkNeighboringMap::GetIndivisibles(), PndSttTube::GetLayerID(), PndTrkNeighboringMap::GetNeighboringsToHit(), PndTrkHit::GetTubeID(), and i.

Referenced by FillHitMap().

                                  {
  char goOnChar;
  //   cout << "DrawLists" << endl;
  //   cin >> goOnChar;
  //   Refresh(); 
  
  
  //for(int i = 0; i < fHitMap->GetStandalone().GetEntriesFast(); i++) {  //[R.K. 03/2017] unused variable
    //PndTrkHit *hitA = (PndTrkHit*) fHitMap->GetStandalone().At(i); //[R.K. 03/2017] unused variable
  //} //[R.K. 03/2017] unused variable
  //for(int i = 0; i < fHitMap->GetSeeds().GetEntriesFast(); i++) { //[R.K. 03/2017] unused variable
    //PndTrkHit *hitA = (PndTrkHit*) fHitMap->GetSeeds().At(i); //[R.K. 03/2017] unused variable
  //} //[R.K. 03/2017] unused variable
  //for(int i = 0; i < fHitMap->GetCandseeds().GetEntriesFast(); i++) { //[R.K. 03/2017] unused variable
    //PndTrkHit *hitA = (PndTrkHit*) fHitMap->GetCandseeds().At(i); //[R.K. 03/2017] unused variable
  //} //[R.K. 03/2017] unused variable
  for(int i = 0; i < fHitMap->GetIndivisibles().GetEntriesFast(); i++) {
    PndTrkHit *hitA = (PndTrkHit*) fHitMap->GetIndivisibles().At(i);
    //    hitA->DrawTube(kOrange);
    TObjArray neighs = fHitMap->GetNeighboringsToHit(hitA);
    for(int j = 0; j < neighs.GetEntriesFast(); j++) {
      PndTrkHit *hitB = (PndTrkHit*) neighs.At(j);
      TObjArray neighs2 = fHitMap->GetNeighboringsToHit(hitA);
      if(neighs2.GetEntriesFast() > 2) {
        int counter = 0;
        PndSttTube *tubeB = (PndSttTube* ) fTubeArray->At(hitB->GetTubeID());
        for(int k = 0; k < neighs2.GetEntriesFast(); k++) {
          PndTrkHit *hitC = (PndTrkHit*) neighs2.At(k);
          PndSttTube *tubeC = (PndSttTube* ) fTubeArray->At(hitC->GetTubeID());
          cout << "tubes " << tubeB << " "<< tubeC << endl;
          if(tubeB->GetLayerID() == tubeC->GetLayerID()) continue;
          counter++;
        }
        if(counter > 2) continue;
      }
      //  hitB->DrawTube(kYellow);
    }
    // display->Update();
    // display->Modified();
    // cin >> goOnChar;

  }
  
  //     for(int i = 0; i < limits.GetEntriesFast(); i++) {
  //        PndTrkHit *hitA = (PndTrkHit*) limits.At(i);
  //        hitA->DrawTube(kYellow);
  //      }
  
  display->Update();
  display->Modified();
  cin >> goOnChar;
}

void PndTrkTrackFinder::DrawNeighborings

(

)

Definition at line 5481 of file PndTrkTrackFinder.cxx.

References DrawNeighboringsToHit(), PndTrkHitList::GetHit(), PndTrkHitList::GetNofHits(), hit(), and stthitlist.

Referenced by FillHitMap().

                                         {
  char goOnChar;
 
  for(int ihit = 0; ihit < stthitlist->GetNofHits(); ihit++) {
    cout << "new neigh hit?" << endl;
    cin >> goOnChar;
    PndTrkHit *hit = stthitlist->GetHit(ihit);
    DrawNeighboringsToHit(hit);
    cin >> goOnChar;
  }

}

void PndTrkTrackFinder::DrawNeighboringsToHit

(

PndTrkHit *

hit

)

Definition at line 5494 of file PndTrkTrackFinder.cxx.

References display, PndTrkHit::DrawTube(), fHitMap, fTubeArray, PndTrkHit::GetHitID(), PndSttTube::GetLayerID(), PndTrkNeighboringMap::GetNeighboringsToHit(), PndTrkHit::GetTubeID(), i, and Refresh().

Referenced by DrawNeighborings().

                                                            {

 
  Refresh(); 
  hit->DrawTube(kYellow);
  //PndSttTube *tube = (PndSttTube*) fTubeArray->At(hit->GetTubeID()); //[R.K. 01/2017] unused variable
  TObjArray neighs = fHitMap->GetNeighboringsToHit(hit);


  //  cout << "HIT " << hit->GetHitID() << "(" << hit->GetTubeID() << "/" << tube->GetLayerID() << ")" << " has " << neighs.GetEntriesFast() << " neighborings: ";
  for(int i = 0; i < neighs.GetEntriesFast(); i++) {
    PndTrkHit *hitA = (PndTrkHit*) neighs.At(i);
    hitA->DrawTube(kCyan);
    PndSttTube *tubeA = (PndSttTube*) fTubeArray->At(hitA->GetTubeID());
    cout << " " << hitA->GetHitID() << "(" << hitA->GetTubeID() << "/" << tubeA->GetLayerID() << ")";
  }
  cout << endl;
  display->Update();
  display->Modified();
  
}

void PndTrkTrackFinder::DrawZGeometry	(	double	phimin = 0,
		double	phimax = 360,
		double	zmin = -43,
		double	zmax = 113
	)

Definition at line 7395 of file PndTrkTrackFinder.cxx.

References display, and hzphi.

Referenced by CleanUpSkewHitList(), and Exec().

{
  if(hzphi == NULL) hzphi = new TH2F("hzphi", "z - phi plane", phimax - phimin, phimin, phimax, zmax - zmin, zmin, zmax);
  else {
    hzphi->Reset();
    hzphi->GetXaxis()->SetLimits(phimin, phimax);
    hzphi->GetYaxis()->SetLimits(zmin, zmax);
  }
  display->cd(4);
  hzphi->Draw();
  
  display->Update();
  display->Modified();  
  
}

void PndTrkTrackFinder::Exec ( Option_t *  opt )

virtual

Virtual method Exec

if(fDisplayOn) { Refresh(); char goOnChar; display->cd(1); TArc *arcm = new TArc(x, y, r); arcm->SetFillStyle(0); arcm->SetLineColor(5); arcm->Draw("SAME"); display->Update(); display->Modified(); }

if(fDisplayOn) { indhit->Draw(kMagenta); }

if(hit->IsMvdPixel()) else if(hit->IsMvdStrip()) else if(hit->IsStt()) else if(hit->IsGem()) else if(hit->IsScitil())

TVector3 stat1(0, 0, 0), stat2(0, 0, 0), stat3(0, 0, 0); int nstat1 = 0, nstat2 = 0, nstat3 = 0; for(int jhit = 0; jhit < cluster.GetNofHits(); jhit++) { hit = cluster.GetHit(jhit); int sensid = hit->GetSensorID();

if(sensid <= 1) { stat1 += hit->GetPosition(); nstat1++; } else if(sensid <= 3) { stat2 += hit->GetPosition(); nstat2++; } else if(sensid <= 5) { stat3 += hit->GetPosition(); nstat3++; } } if(nstat1 == 0 || nstat2 == 0 || nstat3 == 0) continue;

stat1 *= (1./nstat1); stat2 *= (1./nstat2); stat3 *= (1./nstat3);

double alpha = 0.5 * (stat1.X() * stat1.X() - stat2.X() * stat2.X() + stat1.Y() * stat1.Y() - stat2.Y() * stat2.Y()) / (stat1.X() - stat2.X()); double beta = (stat1.Y() - stat2.Y())/(stat1.X() - stat2.X());

double yc0 = (alpha * (stat1.X() - stat3.X()) - 0.5 * (stat1.Y() * stat1.Y() - stat3.Y() * stat3.Y()) - 0.5 * (stat1.X() * stat1.X() - stat3.X() * stat3.X())) / ((stat1.X() - stat3.X()) * beta - (stat1.Y() - stat3.Y()));

double xc0 = alpha - beta * yc0;

double R0 = TMath::Sqrt((stat1.X() - xc0) * (stat1.X() - xc0) + (stat1.Y() - yc0) * (stat1.Y() - yc0));

Definition at line 629 of file PndTrkTrackFinder.cxx.

References a, PndTrkClusterList::AddCluster(), PndTrkSkewHitList::AddHit(), PndTrkCluster::AddHit(), PndTrkConformalHitList::AddHit(), PndTrkTrackList::AddTrack(), AnalyticalFit(), AnalyticalParabolaFit(), CAMath::ATan2(), b, CircleBy3Points(), PndTrkNeighboringMap::Clear(), PndTrkTrackList::Clear(), PndTrkConformalHitList::Clear(), PndTrkCluster::Clear(), PndTrkTrack::ComputeCharge(), PndTrkTrack::ComputePhi(), PndTrkTrack::ComputePhiFrom(), PndTrkTools::ComputeSegmentCircleIntersection(), PndTrkTools::ComputeTangentInPoint(), ComputeTraAndRot(), conform, PndTrkTrack::ConvertToPndTrack(), CAMath::Cos(), count, counter, CTINRADIUS, CTOUTRADIUS, PndTrkCluster::DeleteHitAndCompress(), display, PndTrkCluster::DoesContain(), Double_t, PndTrkConformalHit::Draw(), PndTrkIndivisibleHit::Draw(), PndTrkTrack::Draw(), PndTrkCluster::Draw(), PndTrkHit::Draw(), DrawGeometryConf(), DrawLegendreHisto(), DrawZGeometry(), dx, dy, PndTrkLegendreTransform::ExtractLegendreMaxima(), PndTrkLegendreTransform::ExtractLineParameters(), fabs(), fConformalHitList, fDisplayOn, fEventCounter, fFinalCluster, fFitter, fGemBranch, fGemHitArray, fHitMap, FillConformalHitList(), FillHitMap(), FillLegendreHisto(), fIndivisibleHitList, fLineHisto, fMvdPixelBranch, fMvdPixelHitArray, fMvdStripBranch, fMvdStripHitArray, fNofPrimaries, fRefHit, fRmax, fRmin, FromConformalToRealTrack(), FromConformalToRealTrackParabola(), fSciTBranch, fSciTHitArray, fSttBranch, fSttHitArray, fTrackArray, fTrackCandArray, fTrackList, fTrkTrackArray, fTubeArray, fUmax, fUmin, fVerbose, fVmax, fVmin, gemhitlist, PndTrkTrack::GetCenter(), PndTrkTrack::GetCharge(), PndTrkTrack::GetCluster(), PndTrkConformalTransform::GetConformalHit(), PndTrkHit::GetDetectorID(), PndTrackCandHit::GetDetId(), PndSttTube::GetHalfLength(), PndTrkSkewHitList::GetHit(), PndTrkHitList::GetHit(), PndTrkConformalHitList::GetHit(), PndTrkCluster::GetHit(), PndTrkHitList::GetHitByID(), PndTrackCandHit::GetHitId(), PndTrkHit::GetHitID(), PndTrkNeighboringMap::GetIndivisiblesToHit(), PndTrkSkewHit::GetIntersection1(), PndTrkSkewHit::GetIntersection2(), PndTrkConformalHit::GetIsochrone(), PndTrkHit::GetIsochrone(), PndSttTube::GetLayerID(), PndTrackCand::GetNHits(), PndTrkSkewHitList::GetNofHits(), PndTrkHitList::GetNofHits(), PndTrkConformalHitList::GetNofHits(), PndTrkCluster::GetNofHits(), PndTrkTrackList::GetNofTracks(), PndTrack::GetParamFirst(), PndTrack::GetParamLast(), PndTrkHit::GetPhi(), PndTrkSkewHit::GetPhi1(), PndTrkSkewHit::GetPhi2(), PndTrkConformalHit::GetPosition(), PndSttTube::GetPosition(), PndTrkIndivisibleHit::GetPosition(), PndTrkHit::GetPosition(), PndTrkTrack::GetRadius(), PndTrkHit::GetSector(), PndSttTube::GetSectorID(), PndTrkHit::GetSensorID(), PndTrackCand::GetSortedHit(), PndTrkHit::GetSortVariable(), PndTrkTrack::GetTanL(), PndTrkTrackList::GetTrack(), PndTrack::GetTrackCand(), PndTrack::GetTrackCandPtr(), PndTrkHit::GetTubeID(), PndTrkConformalHit::GetU(), PndTrkConformalHit::GetV(), PndSttTube::GetWireDirection(), PndTrkHit::GetXYDistance(), PndTrkTrack::GetZ0(), hit(), hits, Initialize(), isec, PndTrkHit::IsGem(), PndTrkHit::IsMvd(), PndTrkHit::IsMvdPixel(), PndTrkHit::IsMvdStrip(), PndTrkHit::IsSciTil(), PndTrkHit::IsStt(), PndTrkHit::IsSttParallel(), PndTrkHit::IsSttSkew(), PndTrkHit::IsUsed(), legendre, PndTrkCluster::LightUp(), PndTrkCluster::MergeTo(), MinuitFit(), mvdpixhitlist, mvdstrhitlist, NOFLAYERS, phi, Pi, PIPEDIAMETER, pos, r, R, r1, r2, Refresh(), RefreshConf(), PndTrkFitter::Reset(), PndTrkConformalHitList::Reset(), Reset(), PndTrkLegendreTransform::ResetLegendreHisto(), PndTrkCluster::ReverseSort(), scithitlist, PndTrkTrack::SetCenter(), PndTrkTrack::SetCluster(), PndTrkConformalHitList::SetConformalTransform(), PndTrack::SetFlag(), PndTrkConformalTransform::SetOrigin(), PndTrkHit::SetPhi(), PndTrkSkewHit::SetPhi1(), PndTrkSkewHit::SetPhi2(), PndTrkFitter::SetPointToFit(), PndTrkHit::SetPosition(), PndTrkTrack::SetRadius(), PndTrkHit::SetSortVariable(), PndTrkTrack::SetTanL(), PndTrkLegendreTransform::SetUpLegendreHisto(), PndTrkHit::SetUsedFlag(), PndTrkTrack::SetZ0(), PndTrkCluster::SharedAt(), sigma, CAMath::Sin(), SKEW_ANGLE, PndTrkCluster::Sort(), CAMath::Sqrt(), PndTrkFitter::StraightLineFit(), stthitlist, t, tanl, theta, tools, track, trk, v, vote, x, y, y0, z, and z0.

                                       {
  // ############## I N I T I A L I Z A T I O N S ##############
  fTrackArray->Delete();
  fTrkTrackArray->Delete();
  fTrackCandArray->Delete();
  if(fVerbose > 0) cout << "PndTrkTrackFinder:: *********************** " << fEventCounter << " ***********************" << endl;
  // fDisplayOn = kTRUE;
  fEventCounter++;
  // initialize -----~~~~~-----~~~~~-----~~~~~-----~~~~~-----~~~~~-----~~~~~-----~~~~
  Initialize();
  if(fVerbose > 1) 
    {
      cout << "number of stt    hits " << fSttHitArray->GetEntriesFast() << endl;
      cout << "number of mvdpix hits " << fMvdPixelHitArray->GetEntriesFast() << endl;
      cout << "number of mvdstr hits " << fMvdStripHitArray->GetEntriesFast() << endl;
      cout << "number of scit   hits " << fSciTHitArray->GetEntriesFast() << endl;
      cout << "number of gem    hits " << fGemHitArray->GetEntriesFast() << endl;
    }


  if(fSttHitArray->GetEntriesFast() > 200) {                         // CHECK
    fEventCounter++;
    // cout << "STT hits " << fSttHitArray->GetEntriesFast() << endl;
    Reset();
    return;
  }


  // initialize display -----~~~~~-----~~~~~-----~~~~~-----~~~~~-----~~~~~-----~~~~~-
  if(fDisplayOn)  {
    Refresh();
    char goOnChar;
    display->Update();
    display->Modified();
    cout << " STARTING" << endl;
    cin >> goOnChar;
    display->Update();
    display->Modified();
  }

  // initialize hit map -----~~~~~-----~~~~~-----~~~~~-----~~~~~-----~~~~~-----~~~~~-
  fHitMap->Clear();
  FillHitMap();

  // ##########################################################
  
  // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  // L      OOO  N   N  GGG
  // L     O   O NN  N G   
  // L     O   O N N N G  GG
  // L     O   O N  NN G   G
  // LLLLL  OOO  N   N  GGG 

  //  fDisplayOn = kFALSE;
  PndTrkHit *stthit = NULL;
  TObjArray indiv;
  // calculate the indivisible parallel hits and
  // their center of mass
  //  std::vector< PndTrkIndivisibleHit > listofindhits;
  double numx, numy, den;
  for(int ihit = 0; ihit < stthitlist->GetNofHits(); ihit++) {
    stthit = stthitlist->GetHit(ihit);
    if(stthit->IsSttSkew()) continue;
    numx = stthit->GetPosition().X() * stthit->GetIsochrone();
    numy = stthit->GetPosition().Y() * stthit->GetIsochrone();
    den = stthit->GetIsochrone();
    indiv = fHitMap->GetIndivisiblesToHit(stthit);
    //    cout << "--------------------------- indiv to stthit " << ihit << " " << indiv.GetEntriesFast() << " " << stthit->GetTubeID() << endl;
    //     cout <<  stthit->GetPosition().X() << " "  << stthit->GetPosition().Y() << endl;
    int nind = indiv.GetEntriesFast();
    if(nind == 0) continue;
    
    TArrayI indhitids(nind + 1);
    indhitids[0] = stthit->GetHitID();
    int counter = 1;
    for(int jhit = 0; jhit < nind; jhit++) {
      PndTrkHit *stthit2 = (PndTrkHit*) indiv.At(jhit);
      if(stthit2->IsSttSkew()) continue;
      numx += stthit2->GetPosition().X() * stthit2->GetIsochrone();
      numy += stthit2->GetPosition().Y() * stthit2->GetIsochrone();
      den += stthit2->GetIsochrone();
      indhitids[counter] = stthit2->GetHitID();
      //      cout << counter << " " << stthit2->GetPosition().X() << " " << stthit2->GetPosition().Y() << " " << stthit2->GetIsochrone() << " tube " << stthit2->GetTubeID() << endl;
 counter++;
    }
    numx/=den;
    numy/=den;
    
    // create combined hit
    TVector3 indpos(numx, numy, 0.);
    //    cout << fIndivisibleHitList->GetNofHits() << " num.den " << numx << " " << numy << " " << den << endl;
    PndTrkIndivisibleHit indhit(indhitids, indpos);

    fIndivisibleHitList->AddHit(&indhit);
  }

  //  cout << "nof indivisibles " << fIndivisibleHitList->GetNofHits() << endl;
  if(fDisplayOn) {
    for(int ihit = 0; ihit < fIndivisibleHitList->GetNofHits(); ihit++) {
      PndTrkIndivisibleHit *indhit = (PndTrkIndivisibleHit*) fIndivisibleHitList->GetHit(ihit);
      //  cout << "indhit " << indhit->GetPosition().X() << " " << indhit->GetPosition().Y() << " " << indhit->GetSector() << endl;
      indhit->Draw(kMagenta);
    }
    display->Update();
    display->Modified();
    char goOnChar;
    cin >> goOnChar;
  }
  

 
  // +++++++++++++++++++++++++++++

  std::map< int, std::vector< int > > maplay2hits;
  PndTrkHit *hit = NULL;
  for(int ihit = 0; ihit < stthitlist->GetNofHits(); ihit++) {
    hit = stthitlist->GetHit(ihit);
    PndSttTube *tube = (PndSttTube*) fTubeArray->At(hit->GetTubeID());
    int layerID = tube->GetLayerID();
    std::map< int, std::vector< int > >::iterator it = maplay2hits.begin();
    it = maplay2hits.find(layerID);
    if(it == maplay2hits.end()) {
      std::vector< int > hits;
      hits.push_back(ihit);
      maplay2hits[layerID] = hits;
      //   maplay2hits.insert(std::pair<int, std::vector<int> >(layerID, hits));
      std::vector< int > hits2 = maplay2hits[layerID];
    }
    else {
      std::vector< int > hits = maplay2hits[layerID];
      hits.push_back(ihit);
      maplay2hits[layerID] = hits;
    }
  }


  for(size_t ilay = 0; ilay < maplay2hits.size(); ilay++) {
    std::vector< int > hits = maplay2hits[ilay];
    //    cout << "layer " << ilay << " has nof hits " << hits.size() << endl;
  }

  std::vector< std::vector < int > > trackcandidates;
  // first inner - last inner layers ------------------------------------------------------------ 
  // couples
  // CUTS:
  // xy distance < 10 cm
  // cosalpha < 0.94

  std::vector< int > hits0 =  maplay2hits[0];
  for(size_t ihit = 0; ihit < hits0.size(); ihit++) {
    std::vector< int > hits7 =  maplay2hits[7];
    for(size_t jhit = 0; jhit < hits7.size(); jhit++) {
      // cut on distance
      PndTrkHit *hiti = stthitlist->GetHit(hits0[ihit]);
      PndTrkHit *hitj = stthitlist->GetHit(hits7[jhit]);
      double distance = hiti->GetXYDistance(hitj);
      // cout << hits0[ihit] << " and " << hits7[jhit];
      if(distance > 10) { 
        // cout << " too distant " << distance << endl; 
        continue;
      }

      // cut on angle
      TVector2 hitipos = hiti->GetPosition().XYvector();
      TVector2 hitjpos = hitj->GetPosition().XYvector();
      double cosalpha = hitipos * hitjpos / (hitipos.Mod() * hitjpos.Mod());
      if(cosalpha < 0.94) { 
        // cout << " have bad cosine " << cosalpha << endl; 
        continue;
      }
      
      std::vector< int > couple;
      couple.push_back(hits0[ihit]);
      couple.push_back(hits7[jhit]);
      trackcandidates.push_back(couple);
    }
  }


  //  cout << "nof couples " << trackcandidates.size() << endl;
//   for(int i = 0; i < trackcandidates.size(); i++) {
//     std::vector< int > driplet = trackcandidates[i];
//     PndTrkHit *hit0 = stthitlist->GetHit(driplet[0]);
//     PndTrkHit *hit1 = stthitlist->GetHit(driplet[1]);
//     TMarker *mrk0 = new TMarker(hit0->GetPosition().X(), hit0->GetPosition().Y(), 21);
//     mrk0->Draw("SAME");
//     TMarker *mrk1 = new TMarker(hit1->GetPosition().X(), hit1->GetPosition().Y(), 21);
//     mrk1->Draw("SAME");
//     char *goOnChar;
  
//     display->Update();
//     display->Modified();

//       cin >> goOnChar;
//   }


  //  cout << endl;
  // triplets
  std::vector< std::vector < int > > trackcandidates2;
  for(size_t ipair = 0; ipair < trackcandidates.size(); ipair++) {
    std::vector< int > couple = trackcandidates[ipair];
    
    std::vector< int > hits16 =  maplay2hits[16];
    for(size_t jhit = 0; jhit < hits16.size(); jhit++) {
      PndTrkHit *hit0 = stthitlist->GetHit(couple[0]);
      PndTrkHit *hit1 = stthitlist->GetHit(couple[1]);
      
      PndTrkHit *hit16 = stthitlist->GetHit(hits16[jhit]);
      double distance = hit1->GetXYDistance(hit16);
      // cout << couple[0] << ", " << couple[1] <<  " and " << hits16[jhit];
      if(distance > 15) { 
        // cout << " too distant " << distance << endl; 
        continue;
      }
      
      // cut on angle
      TVector2 hit1_0pos = hit1->GetPosition().XYvector() - hit0->GetPosition().XYvector();
      TVector2 hit1_16pos = hit16->GetPosition().XYvector() - hit1->GetPosition().XYvector();
      double cosalpha = hit1_0pos *  hit1_16pos/ (hit1_0pos.Mod() * hit1_16pos.Mod());
      //      cout << "cosalpha " << cosalpha << endl;
      if(cosalpha < 0.900) { 
        // cout << " have bad cosine " << cosalpha << endl; 
        continue;
      }
      
      //      cout << " are fine! " << cosalpha << endl;
      
      std::vector< int > triplet;
      triplet.push_back(couple[0]);
      triplet.push_back(couple[1]);
      triplet.push_back(hits16[jhit]);
      
      trackcandidates2.push_back(triplet);
    }
  }
  //  cout << "nof triplets " << trackcandidates2.size() << endl;
//   for(int i = 0; i < trackcandidates2.size(); i++) {
//     std::vector< int > driplet = trackcandidates2[i];
//     PndTrkHit *hit0 = stthitlist->GetHit(driplet[0]);
//     PndTrkHit *hit1 = stthitlist->GetHit(driplet[1]);
//     PndTrkHit *hit2 = stthitlist->GetHit(driplet[2]);

//     TMarker *mrk0 = new TMarker(hit0->GetPosition().X(), hit0->GetPosition().Y(), 21);
//     mrk0->Draw("SAME");
//     TMarker *mrk1 = new TMarker(hit1->GetPosition().X(), hit1->GetPosition().Y(), 21);
//     mrk1->Draw("SAME");
//     TMarker *mrk2 = new TMarker(hit2->GetPosition().X(), hit2->GetPosition().Y(), 21);
//     mrk2->Draw("SAME");

//     char goOnChar;
  
//     display->Update();
//     display->Modified();

//     cin >> goOnChar;
//   }

  // fourth hit
  std::vector< std::vector< int > >  trackcandidates3;
  for(size_t iqua = 0; iqua < trackcandidates2.size(); iqua++) {
    std::vector< int > triplet = trackcandidates2[iqua];
    
    //PndTrkHit *hit0 = stthitlist->GetHit(triplet[0]); //[R.K. 03/2017] unused variable
    PndTrkHit *hit1 = stthitlist->GetHit(triplet[1]);
    PndTrkHit *hit2 = stthitlist->GetHit(triplet[2]);
    //  cout << "TRIPLET: " << triplet[0] << ", " << triplet[1] <<  " and " << triplet[2] << endl;

    std::vector< int > hits20 =  maplay2hits[20];
    for(size_t jhit = 0; jhit < hits20.size(); jhit++) {
      PndTrkHit *hit20 = stthitlist->GetHit(hits20[jhit]);
      double distance = hit2->GetXYDistance(hit20);
      // cout << triplet[0] << ", " << triplet[1] <<  ", " << triplet[2] << " and " << hits20[jhit];
      if(distance > 15) { 
        // cout << " too distant " << distance << endl; 
        continue;  
      }
      
      // cut on angle
      TVector2 hit2_1pos = hit2->GetPosition().XYvector() - hit1->GetPosition().XYvector();
      TVector2 hit2_20pos = hit20->GetPosition().XYvector() - hit1->GetPosition().XYvector();
      double cosalpha = hit2_1pos *  hit2_20pos/ (hit2_1pos.Mod() * hit2_20pos.Mod());
      if(cosalpha < 0.94) {
        // cout << " have bad cosine " << cosalpha << endl; 
        continue; 
      }
      
      //      cout << " are fine! " << cosalpha << endl;
      
      std::vector< int > quadriplet;
      quadriplet.push_back(triplet[0]);
      quadriplet.push_back(triplet[1]);
      quadriplet.push_back(triplet[2]);
      quadriplet.push_back(hits20[jhit]);
      
      trackcandidates3.push_back(quadriplet);
    }
  }
  //  cout << "nof quadriplets " << trackcandidates3.size() << endl;
//   for(int i = 0; i < trackcandidates3.size(); i++) {
//     std::vector< int > driplet = trackcandidates3[i];
//     PndTrkHit *hit0 = stthitlist->GetHit(driplet[0]);
//     PndTrkHit *hit1 = stthitlist->GetHit(driplet[1]);
//     PndTrkHit *hit2 = stthitlist->GetHit(driplet[2]);
//     PndTrkHit *hit3 = stthitlist->GetHit(driplet[3]);

//     TMarker *mrk0 = new TMarker(hit0->GetPosition().X(), hit0->GetPosition().Y(), 21);
//     mrk0->Draw("SAME");
//     TMarker *mrk1 = new TMarker(hit1->GetPosition().X(), hit1->GetPosition().Y(), 21);
//     mrk1->Draw("SAME");
//     TMarker *mrk2 = new TMarker(hit2->GetPosition().X(), hit2->GetPosition().Y(), 21);
//     mrk2->Draw("SAME");
//     TMarker *mrk3 = new TMarker(hit3->GetPosition().X(), hit3->GetPosition().Y(), 21);
//     mrk3->Draw("SAME");
    
//     char goOnChar;
  
//     display->Update();
//     display->Modified();

//     cin >> goOnChar;
//   }



  // circle through three points
  // find the tracks
  std::vector < std::vector < double > > tracks; // x0, y0, R
  std::vector< std::vector< int > >  trackcandidates4;
  for(size_t iqua = 0; iqua < trackcandidates3.size(); iqua++) {
    std::vector< int > quadriplet = trackcandidates3[iqua];
    PndTrkHit *hit0 = stthitlist->GetHit(quadriplet[0]);
    PndTrkHit *hit1 = stthitlist->GetHit(quadriplet[1]);
    PndTrkHit *hit2 = stthitlist->GetHit(quadriplet[2]);
    PndTrkHit *hit3 = stthitlist->GetHit(quadriplet[3]);

    double x01, y01, rad1;
    CircleBy3Points(hit0, hit1, hit2, x01, y01, rad1);
    double x02, y02, rad2;
    CircleBy3Points(hit0, hit1, hit3, x02, y02, rad2);
    double x03, y03, rad3;
    CircleBy3Points(hit3, hit1, hit2, x03, y03, rad3);
   
    double xm = 0, ym = 0, rm = 0;
    int positive[2] = {0, 0}, negative[2] = {0, 0};
    if(x01 > 0) positive[0]++; 
    else negative[0]++;
    if(x02 > 0) positive[0]++;
    else negative[0]++;
    if(x03 > 0) positive[0]++;
    else negative[0]++;

    if(y01 > 0) positive[1]++; 
    else negative[1]++;
    if(y02 > 0) positive[1]++;
    else negative[1]++;
    if(y03 > 0) positive[1]++;
    else negative[1]++;

    bool posit[2] = {false, false};
    positive[0] > negative[0] ? posit[0] = true : posit[0] = false;
    positive[1] > negative[1] ? posit[1] = true : posit[1] = false;

    int count = 0;
    if(posit[0] == true && x01 > 0)  { 
      if(posit[1] == true && y01 > 0)   { xm += x01; ym += y01; rm += rad1; count++; }
      else if(posit[1] == false && y01 < 0) { xm += x01; ym += y01; rm += rad1; count++; }
    }
    else if(posit[0] == false && x01 < 0)  {
      if(posit[1] == true && y01 > 0)   { xm += x01; ym += y01; rm += rad1; count++; }
      else if(posit[1] == false && y01 < 0) { xm += x01; ym += y01; rm += rad1; count++; }
    }

    if(posit[0] == true && x02 > 0)  { 
      if(posit[1] == true && y02 > 0)   { xm += x02; ym += y02; rm += rad2; count++; }
      else if(posit[1] == false && y02 < 0) { xm += x02; ym += y02; rm += rad2; count++; }
    }
    else if(posit[0] == false && x02 < 0)  {
      if(posit[1] == true && y02 > 0)   { xm += x02; ym += y02; rm += rad2; count++; }
      else if(posit[1] == false && y02 < 0) { xm += x02; ym += y02; rm += rad2; count++; }
    }

    if(posit[0] == true && x03 > 0)  { 
      if(posit[1] == true && y03 > 0)   { xm += x03; ym += y03; rm += rad3; count++; }
      else if(posit[1] == false && y03 < 0) { xm += x03; ym += y03; rm += rad3; count++; }
    }
    else if(posit[0] == false && x03 < 0)  {
      if(posit[1] == true && y03 > 0)   { xm += x03; ym += y03; rm += rad3; count++; }
      else if(posit[1] == false && y03 < 0) { xm += x03; ym += y03; rm += rad3; count++; }
    }

     xm /= count;
     ym /= count;
     rm /= count;

     //     cout << "pos.neg " << positive << " " << negative << endl;
     
     double distance0 = fabs(TMath::Sqrt((hit0->GetPosition().X() - xm) * (hit0->GetPosition().X() - xm) + (hit0->GetPosition().Y() - ym) * (hit0->GetPosition().Y() - ym)) - rm);
     double distance1 = fabs(TMath::Sqrt((hit1->GetPosition().X() - xm) * (hit1->GetPosition().X() - xm) + (hit1->GetPosition().Y() - ym) * (hit1->GetPosition().Y() - ym)) - rm);
     double distance2 = fabs(TMath::Sqrt((hit2->GetPosition().X() - xm) * (hit2->GetPosition().X() - xm) + (hit2->GetPosition().Y() - ym) * (hit2->GetPosition().Y() - ym)) - rm);
     double distance3 = fabs(TMath::Sqrt((hit3->GetPosition().X() - xm) * (hit3->GetPosition().X() - xm) + (hit3->GetPosition().Y() - ym) * (hit3->GetPosition().Y() - ym)) - rm);
     
    // cut on the distance to accept quadriplet hypo
    double maxlimit = 1.;
    if(fabs(distance0 - hit0->GetIsochrone()) > maxlimit || fabs(distance1 - hit1->GetIsochrone())  > maxlimit || fabs(distance2 - hit2->GetIsochrone())  > maxlimit || fabs(distance3 - hit3->GetIsochrone())  > maxlimit) continue;
    
    
    if(fDisplayOn)  {
      char goOnChar;
      Refresh();

      cout << "circ1 " << x01 << " " << y01 << " " << rad1 << endl;
      cout << "circ2 " << x02 << " " << y02 << " " << rad2 << endl;
      cout << "circ3 " << x03 << " " << y03 << " " << rad3 << endl;
      cout << "circm " << xm << " " << ym << " " << rm << endl;

      TArc *arc01 = new TArc(x01, y01, rad1);
      arc01->SetFillStyle(0);
      arc01->SetLineColor(1);
      arc01->Draw("SAME");
      TArc *arc02 = new TArc(x02, y02, rad2);
      arc02->SetFillStyle(0);
      arc02->SetLineColor(2);
      arc02->Draw("SAME");
      TArc *arc03 = new TArc(x03, y03, rad3);
      arc03->SetFillStyle(0);
      arc03->SetLineColor(3);
      arc03->Draw("SAME");
      
      TMarker *mrk1 = new TMarker(hit0->GetPosition().X(), hit0->GetPosition().Y(), 20);
      mrk1->SetMarkerColor(kBlack);
      mrk1->Draw("SAME");

      TMarker *mrk2 = new TMarker(hit1->GetPosition().X(), hit1->GetPosition().Y(), 20);
      mrk2->SetMarkerColor(kRed);
      mrk2->Draw("SAME");
      
      TMarker *mrk3 = new TMarker(hit2->GetPosition().X(), hit2->GetPosition().Y(), 20);
      mrk3->SetMarkerColor(kGreen);
      mrk3->Draw("SAME");

      TMarker *mrk4 = new TMarker(hit3->GetPosition().X(), hit3->GetPosition().Y(), 20);
      mrk4->SetMarkerColor(kBlue);
      mrk4->Draw("SAME");

      TArc *arcm = new TArc(xm, ym, rm);
      arcm->SetFillStyle(0);
      arcm->SetLineStyle(2);
      arcm->SetLineColor(kMagenta);
      arcm->Draw("SAME");
      display->Update();
      display->Modified();

      cout << "hit0: " << distance0 << " " << fabs(distance0 - hit0->GetIsochrone()) << " " << fabs(distance0 - hit0->GetIsochrone())/hit0->GetIsochrone() << " " << distance0/hit0->GetIsochrone() << endl;
      cout << "hit1: " << distance1 << " " << fabs(distance1 - hit1->GetIsochrone()) << " " << fabs(distance1 - hit1->GetIsochrone())/ hit1->GetIsochrone() << " " << distance1/hit1->GetIsochrone() <<endl;
      cout << "hit2: " << distance2 << " " << fabs(distance2 - hit2->GetIsochrone()) << " " << fabs(distance2 - hit2->GetIsochrone())/ hit2->GetIsochrone() << " " << distance2/hit2->GetIsochrone() <<endl;
      cout << "hit3: " << distance3 << " " << fabs(distance3 - hit3->GetIsochrone()) << " " << fabs(distance3 - hit3->GetIsochrone())/ hit3->GetIsochrone() << " " << distance3/hit3->GetIsochrone() <<endl;
 
      cout << "next quadriplet?" << endl;    
      cin >> goOnChar;
    }

  
    std::vector< double > track;
    track.push_back(xm);
    track.push_back(ym);
    track.push_back(rm);

    // suppress identical clones
    std::vector< std::vector < double > >::iterator itr = tracks.begin();
    itr = std::find(tracks.begin(), tracks.end(), track);
    if(itr == tracks.end()) {
      //        cout << "miss" << endl;

      // request 10 < rm < 2500
      // . 10 because it touches layers 0 and 20 -->
      // minimum diameter = 20 * 1 cm = 20 cm --> rm > 10
      // . 2500 [cm] = 15 [GeV/c] / 0.006
      if(rm > 10 && rm < 2500) { 
        tracks.push_back(track);
        trackcandidates4.push_back(quadriplet);
      }
    }
    //      else cout << "already" << endl;
  }


  PndTrkClusterList clusterlist;
  
  //   cout << "tracks " <<  tracks.size() << endl;
  for(size_t itrk = 0; itrk < tracks.size(); itrk++) {
    std::vector< double > track = tracks[itrk];
    double x = track[0];
    double y = track[1];
    double r = track[2];
    //    cout << x << " " << y << " " << r << endl;
    // find sector
    std::vector < int > quadriplet = trackcandidates4[itrk];
    PndTrkHit *hit0 = stthitlist->GetHit(quadriplet[0]);
    PndSttTube *tube0 = (PndSttTube*) fTubeArray->At(hit0->GetTubeID());
    PndTrkHit *hit1 = stthitlist->GetHit(quadriplet[1]);
    PndSttTube *tube1 = (PndSttTube*) fTubeArray->At(hit1->GetTubeID());
    PndTrkHit *hit2 = stthitlist->GetHit(quadriplet[2]);
    PndSttTube *tube2 = (PndSttTube*) fTubeArray->At(hit2->GetTubeID());
    PndTrkHit *hit3 = stthitlist->GetHit(quadriplet[3]);
    PndSttTube *tube3 = (PndSttTube*) fTubeArray->At(hit3->GetTubeID());

    std::map< int, int > sectorids;
    int sec[4];
    sec[0] = tube0->GetSectorID();
    sec[1] = tube1->GetSectorID();
    sec[2] = tube2->GetSectorID();
    sec[3] = tube3->GetSectorID();
    for(int isec = 0; isec < 4; isec++) {
      if(sectorids.find(sec[isec]) == sectorids.end()) sectorids[sec[isec]] = 1;
      else sectorids[sec[isec]]++;
      //      cout << "settori " << sec[0] << " " << sec[1] << " " << sec[2] << " " << sec[3] << endl; 

    }
    
    int tmpsecentries = 0, tmpsec = -1;
    for(size_t isec = 0; isec < sectorids.size(); isec++) {
      if(tmpsecentries < sectorids[isec]) {
        tmpsecentries = sectorids[isec];
        tmpsec = isec;
      }
    }
    int sectorID = tmpsec;
    //    cout << "SECTOR " << sectorID << " " << sectorids.size() << endl;

    // border?
    bool border = false;
    int othersecID = -1;
    for(size_t isec = 0; isec < sectorids.size(); isec++) {
      if(sectorids[isec] > 0 && (int)isec != sectorID) {
        border = true;
        othersecID = isec;
      }
    }

   //      cout << "sector " << sectorID << " at border? " << border << " " << othersecID << endl;

    // === CREATE CLUSTER
    // in the same sector or 
    // nearby if at the limit of two sectors <<<<<<<<<<<<------------------
    PndTrkCluster cluster;
    
    // first of all the 4 hits!
    cluster.AddHit(hit0);
    cluster.AddHit(hit1);
    cluster.AddHit(hit2);
    cluster.AddHit(hit3);

    // create cluster depending on fitting
    for(int ihit = 0; ihit < stthitlist->GetNofHits(); ihit++) {
      hit = stthitlist->GetHit(ihit);
      if(hit == hit0 || hit == hit1 || hit == hit2 || hit == hit3) continue;
      if(hit->IsSttParallel() == kFALSE) continue;
      PndSttTube *tube = (PndSttTube*) fTubeArray->At(hit->GetTubeID());
      if(border == false && tube->GetSectorID() != sectorID) continue;
      else if(border == true && (tube->GetSectorID() != sectorID && tube->GetSectorID() != othersecID)) continue;
      
      double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(x, y)).Mod();
      double recoiso = fabs(distance_hit_center - r);
      
      if(recoiso < 1.) cluster.AddHit(hit);

    }
    if(fDisplayOn) {
      display->cd(1);
      cluster.Draw(kBlue);
      display->Update();
      display->Modified();
      char goOnChar;
      cout << "want to go on?" << endl;
      cin >> goOnChar;
    } 


    // get indivisible hits
    // only in appropriate sectors
    PndTrkCluster indcluster;
    //    cout << "indivisibles " << fIndivisibleHitList->GetNofHits() << endl;
    if(fDisplayOn) {
      Refresh();
    }
    for(int ihit = 0; ihit < fIndivisibleHitList->GetNofHits(); ihit++) {
      PndTrkIndivisibleHit *indhit = (PndTrkIndivisibleHit*) fIndivisibleHitList->GetHit(ihit);
      if(border == false && indhit->GetSector() != sectorID) continue;
      else if(border == true && (indhit->GetSector() != sectorID && indhit->GetSector() != othersecID)) continue;

      double distance_hit_center = (indhit->GetPosition().XYvector() - TVector2(x, y)).Mod();
      double recoiso = fabs(distance_hit_center - r);
      if(recoiso < 1.) {
        indcluster.AddHit(indhit);

      }
    }
    if(fDisplayOn) {
      display->Update();
      display->Modified();
      //char goOnChar; //[R.K. 01/2017] unused variable
//       cin >> goOnChar;
    }
  
    // conformal map on last indivisible hit
    double tmpdistance = -1;
    int tmphitID = -1;
    for(int ihit = 0; ihit < indcluster.GetNofHits(); ihit++) {
      PndTrkIndivisibleHit *indhit2 = (PndTrkIndivisibleHit*) indcluster.GetHit(ihit);
      TVector3 position = indhit2->GetPosition();
      if(position.Perp() > tmpdistance) {
        tmpdistance = position.Perp();
        tmphitID = ihit;
      }
    }

    if(tmphitID == -1) continue; // CHECK what if there is no indivisible hit??
    //     cout << "nof indivisible hits " << indcluster.GetNofHits() << " " << tmphitID << endl;
    // set up conformal map
    fConformalHitList->Clear("C");
    Double_t delta = 0, trasl[2] = {0., 0.};
    PndTrkHit *refhit = indcluster.GetHit(tmphitID);
    ComputeTraAndRot(refhit, delta, trasl);
    //     cout << refhit << " " << refhit->GetHitID() << " " << delta << " " << trasl[0] << " " << trasl[1] << endl;
    conform->SetOrigin(trasl[0], trasl[1], delta);
    fConformalHitList->SetConformalTransform(conform);

    // fill conformal hits
    Int_t nofconfhits = FillConformalHitList(&cluster);

    // compute conformal plane extremities ----------------------------
    fUmin =  1000, fVmin =  1000, fRmin =  1000;
    fUmax = -1000, fVmax = -1000, fRmax = -1000;
    double rc_of_min, rc_of_max;
    
    for(int jhit = 0; jhit < fConformalHitList->GetNofHits(); jhit++) {
      PndTrkConformalHit *chit = fConformalHitList->GetHit(jhit);
      double u = chit->GetU();
      double v = chit->GetV();
      double rc = chit->GetIsochrone();
      if(rc < 0) rc = 0;
      // cout << "conf hit " << jhit << " u, v " << u << " " << v << " " << rc << endl;
      u - rc < fUmin ? fUmin = u - rc : fUmin;
      v - rc < fVmin ? fVmin = v - rc : fVmin;
      u + rc > fUmax ? fUmax = u + rc : fUmax;
      v + rc > fVmax ? fVmax = v + rc : fVmax;
      
      double theta1 = TMath::ATan2(v, u);
      double theta2 = theta1 + TMath::Pi();
      
      double r1 = u * TMath::Cos(theta1) + v * TMath::Sin(theta1);
      double r2 = u * TMath::Cos(theta2) + v * TMath::Sin(theta2);
      
      double rimin, rimax;
      r1 < r2 ? (rimin = r1, rimax = r2) : (rimin = r2, rimax = r1);
      
      rimin < fRmin ? (rc_of_min = rc, fRmin = rimin) : fRmin;
      rimax > fRmax ? (rc_of_max = rc, fRmax = rimax) : fRmax;
    }
    
    fRmin -= rc_of_min;
    fRmax += rc_of_max;
    
    // to square the conformal plane
    double du = fUmax - fUmin;
    double dv = fVmax - fVmin;
    double delt = fabs(dv - du)/2.;
    du < dv ? (fUmin -= delt, fUmax += delt) : (fVmin -= delt, fVmax += delt);
 
    if(fDisplayOn) {
      DrawGeometryConf(fUmin, fUmax, fVmin, fVmax);
      // ----------------------------------------------------------------------
      for(int ihit = 0; ihit < nofconfhits; ihit++) {
        PndTrkConformalHit *chit = fConformalHitList->GetHit(ihit);
        chit->Draw(kBlack);
      }
    }

    // ====== REFIT CLUSTER LEGENDRE
    double fitm, fitq;
    //    AnalyticalFit(&cluster, x, y, r, fitm, fitq);
    // LEGENDRE ----------------------------------------------------------
    legendre->SetUpLegendreHisto(180, 0, 180, 1000, -0.07, 0.07);
    // reset the legendre histo for a new legendre fit
    legendre->ResetLegendreHisto();
    
    if(fDisplayOn) {
      RefreshConf();
      DrawGeometryConf(fUmin, fUmax, fVmin, fVmax);
    }
    
    // fill legendre histo with the cluster hits
    FillLegendreHisto(&cluster); 
    std::vector< double > theta_max, r_max;
    std::vector < int > content_max;
    // get the peak
    legendre->ExtractLegendreMaxima(1, theta_max, r_max, content_max);
    // from theta/r to line parameters in CONFORMAL plane 
    double fitm2, fitq2;
    legendre->ExtractLineParameters(theta_max[0], r_max[0], fitm2, fitq2);
    if(fDisplayOn) {
      display->cd(2);
      TLine *line = new TLine(-10.07, fitq2 + fitm2 * (-10.07), 10.07, fitq2 + fitm2 * (10.07));
      line->Draw("SAME");

      display->cd(3);
      DrawLegendreHisto();
      display->Update();
      display->Modified();
    }
    
    // from line parameters to center/radius in REAL plane
    Double_t xc, yc, R;
    FromConformalToRealTrack(fitm2, fitq2, xc, yc, R);
    //     cout << "previous " << x << " " << y << " " << r << endl;
    //     cout << "\033[1;33m MAXPEAK " << content_max[0] << " XR, YC, R: " << xc << " " << yc << " " << R << "\033[0m" << endl;
    bool goodtrack = true;
    double distance = TMath::Sqrt((x - xc) * (x - xc) + (y - yc) * (y - yc));
    double r_minus_rc = fabs(r - R);

    //     cout << "start hit " << ihit << " " << hit->GetHitID() << " " << endsecid << " " << endlayid << endl;
    // --------------------------------------------------------------
    if(fabs(distance - r_minus_rc) > 2.) { // CHECK limit
      double recoisosum = 0;
      for(int ihit = 0; ihit < cluster.GetNofHits(); ihit++) {
        hit = cluster.GetHit(ihit);     
        double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc, yc)).Mod();
        double recoiso = fabs(distance_hit_center - R);
        recoisosum += recoiso;
      }

      if(recoisosum > 10) goodtrack = false; // CHECK limit
    }

    // dont use track which did not
    // pass the cuts
    if(goodtrack == false) continue;

    if(fDisplayOn)  {
      //char goOnChar; //[R.K. 01/2017] unused variable
      display->cd(1);
      TArc *arcm = new TArc(xc, yc, R);
      arcm->SetFillStyle(0);
      arcm->SetLineColor(kBlue);
      arcm->Draw("SAME");
      display->Update();
      display->Modified();
   //    cin >> goOnChar;
    }


    // what about adding the mvd hits now? lets do it!
    // ... and put mvd pixel hits to conformal plane --------------- 
    for(int ihit = 0; ihit < mvdpixhitlist->GetNofHits(); ihit++) {
      hit = mvdpixhitlist->GetHit(ihit);
    
      //      cout << "border " << border << " " << hit->GetSector() << " " << sectorID << " " << othersecID << endl;
      //      if(border == false && hit->GetSector() != sectorID) continue;
      //       else if(border == true && (hit->GetSector() != sectorID && hit->GetSector() != othersecID)) continue;

      if(fabs(hit->GetSector() - sectorID) > 1) continue;
      double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc, yc)).Mod();
      double recoiso = fabs(distance_hit_center - R);
      //       cout << "recoiso pix " << recoiso << endl;
      if(recoiso < 1.) {
        cluster.AddHit(hit);
        if(fDisplayOn)  {
          hit->Draw(kOrange);
          display->Update();
          display->Modified();
        }  
        PndTrkConformalHit chit = conform->GetConformalHit(hit);
        fConformalHitList->AddHit(&chit);  
      }
    }

    // ... and put mvd strip hits to conformal plane --------------- 
    for(int ihit = 0; ihit < mvdstrhitlist->GetNofHits(); ihit++) {
      hit = mvdstrhitlist->GetHit(ihit);
      //    if(border == false && hit->GetSector() != sectorID) continue;
      //      else if(border == true && (hit->GetSector() != sectorID && hit->GetSector() != othersecID)) continue;
      if(fabs(hit->GetSector() - sectorID) > 1) continue;

      double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc, yc)).Mod();
      double recoiso = fabs(distance_hit_center - R);
      //  cout << "mvdstr recoiso str " << recoiso << endl;
      if(recoiso < 1.) {
        cluster.AddHit(hit);
        if(fDisplayOn)  {
          hit->Draw(kOrange);
          display->Update();
          display->Modified();
        }  
        PndTrkConformalHit chit = conform->GetConformalHit(hit); 
        fConformalHitList->AddHit(&chit);  
      }
    }

    // and now: gem time!
    for(int ihit = 0; ihit < gemhitlist->GetNofHits(); ihit++) {
      hit = gemhitlist->GetHit(ihit);
      //       if(border == false && hit->GetSector() != sectorID) continue;
      //       else if(border == true && (hit->GetSector() != sectorID && hit->GetSector() != othersecID)) continue;
      if(fabs(hit->GetSector() - sectorID) > 1) continue;
      double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc, yc)).Mod();
      double recoiso = fabs(distance_hit_center - R);
      // if(hit->GetPosition().Perp() > CTOUTRADIUS) cout << "recoiso gem " << recoiso << endl;
      if(recoiso < 1.5 && hit->GetPosition().Perp() > CTOUTRADIUS) {
        cluster.AddHit(hit);
        if(fDisplayOn)  {
          hit->Draw(kOrange);
          display->Update();
          display->Modified();
        }  
        //     PndTrkConformalHit *chit = conform->GetConformalHit(hit);
        //        conformalhitlist->AddHit(chit);  
      }
    }


  
    // and the scitil? did we forget about that? here it comes...
    // ... and put scit hits to conformal plane ------------------------------
    // the scitil are far away so give a loose request - 10 cm
    // choose however the closest one!
    // remember to check the distance from hit20
    int tmphit = -1; 
    tmpdistance = 1000;
    for(int ihit = 0; ihit < scithitlist->GetNofHits(); ihit++) {
      hit = scithitlist->GetHit(ihit);
      if(hit->GetXYDistance(hit3) > 30) continue;
      //  if(border == false && hit->GetSector() != sectorID) continue;
      // else if(border == true && (hit->GetSector() != sectorID && hit->GetSector() != othersecID)) continue;
      // if(hit->GetSector() != sectorID) continue;
      double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc, yc)).Mod();
      double recoiso = fabs(distance_hit_center - R);
      // cout << "recoiso scitil " << recoiso << " " <<  hit->GetXYDistance(hit3) << endl;
      if(recoiso < 10.) {
        if(recoiso < tmpdistance) {
          tmphit = ihit;
          tmpdistance = recoiso;
        }
      }
    }
    // if there is at least one: yuppi!
    if(tmphit > -1) {
      hit = scithitlist->GetHit(tmphit);
      cluster.AddHit(hit);
      if(fDisplayOn)  {
        hit->Draw(kOrange);
        cout << "herh" << endl;
        char goOnChar;
        cin >> goOnChar;
        display->Update();
        display->Modified();
      } 
      //     PndTrkConformalHit *chit = conform->GetConformalHit(hit); 
      //     fConformalHitList->AddHit(chit);  
    }


    //    // -------------------------- 
    //     // if there is a scitil lets use it as seed hit
    //     // for the conformal map
    //     if(tmphit > -1) {
    //       //      refhit = scithitlist->GetHit(tmphit);
    //       fConformalHitList->Reset();
    //       ComputeTraAndRot(refhit, delta, trasl);
    //       conform->SetOrigin(trasl[0], trasl[1], delta);
    //       fConformalHitList->SetConformalTransform(conform);
    //       // cout << "conformal hits " << fConformalHitList->GetNofHits() << endl;
   
    //       // fill conformal hits
    //       nofconfhits = FillConformalHitList(&cluster);

    //       // compute conformal plane extremities ---------------------------- this must go to a fctn CHECK
    //       fUmin =  1000, fVmin =  1000, fRmin =  1000;
    //       fUmax = -1000, fVmax = -1000, fRmax = -1000;
    //       rc_of_min, rc_of_max;
    
    //       for(int jhit = 0; jhit < fConformalHitList->GetNofHits(); jhit++) {
    //  PndTrkConformalHit *chit = fConformalHitList->GetHit(jhit);
    //  double u = chit->GetU();
    //  double v = chit->GetV();
    //  double rc = chit->GetIsochrone();
    //  if(rc < 0) rc = 0;
    //  // cout << "conf hit " << jhit << " u, v " << u << " " << v << " " << rc << endl;
    //  u - rc < fUmin ? fUmin = u - rc : fUmin;
    //  v - rc < fVmin ? fVmin = v - rc : fVmin;
    //  u + rc > fUmax ? fUmax = u + rc : fUmax;
    //  v + rc > fVmax ? fVmax = v + rc : fVmax;
      
    //  double theta1 = TMath::ATan2(v, u);
    //  double theta2 = theta1 + TMath::Pi();
      
    //  double r1 = u * TMath::Cos(theta1) + v * TMath::Sin(theta1);
    //  double r2 = u * TMath::Cos(theta2) + v * TMath::Sin(theta2);
      
    //  double rimin, rimax;
    //  r1 < r2 ? (rimin = r1, rimax = r2) : (rimin = r2, rimax = r1);
      
    //  rimin < fRmin ? (rc_of_min = rc, fRmin = rimin) : fRmin;
    //  rimax > fRmax ? (rc_of_max = rc, fRmax = rimax) : fRmax;
    //       }
    
    //       fRmin -= rc_of_min;
    //       fRmax += rc_of_max;
    
    //       // to square the conformal plane
    //       du = fUmax - fUmin;
    //       dv = fVmax - fVmin;
    //       delt = fabs(dv - du)/2.;
    //       du < dv ? (fUmin -= delt, fUmax += delt) : (fVmin -= delt, fVmax += delt);
 
    //     }
    //     else {    // otherwise lets refit in the same conf map
    fConformalHitList->Reset(); // CHECK maybe you can just add hits
    // fill conformal hits
    nofconfhits = FillConformalHitList(&cluster);
    //    }

    if(fDisplayOn) {
      display->cd(2);
      DrawGeometryConf(fUmin, fUmax, fVmin, fVmax);
      // ----------------------------------------------------------------------
      for(int ihit = 0; ihit < nofconfhits; ihit++) {
        PndTrkConformalHit *chit = fConformalHitList->GetHit(ihit);
        chit->Draw(kRed);
        display->Update();
        display->Modified();
      }
    }
    

    // ====== REFIT CLUSTER ANALYTICALLY
    double xc2, yc2, R2;

    // line or parabola or minuit   
    if(1 == 1) {
      bool fitting = AnalyticalFit(&cluster, xc, yc, R, fitm, fitq);
      if(fitting == kFALSE) continue;
      FromConformalToRealTrack(fitm, fitq, xc2, yc2, R2);
    }
    else if(1 == 0) {
      double fita, fitb, fitc, epsilon;
      bool fitting = AnalyticalParabolaFit(&cluster, xc, yc, R, fita, fitb, fitc, epsilon);
      if(fitting == kFALSE) continue;
      FromConformalToRealTrackParabola(fita, fitb, fitc, xc2, yc2, R2, epsilon);
    }
    else {
      bool fitting = MinuitFit(&cluster, fitm2, fitq2, fitm, fitq);
      if(fitting == kFALSE) continue;
      FromConformalToRealTrack(fitm, fitq, xc2, yc2, R2);
    }

    if(fDisplayOn)  {
      //char goOnChar; //[R.K. 01/2017] unused variable
      display->cd(1);
      TArc *arcm = new TArc(xc2, yc2, R2);
      arcm->SetFillStyle(0);
      arcm->SetLineColor(5);
      arcm->Draw("SAME");
      display->Update();
      display->Modified();
    }
    //    cout << "xc2: " << xc2 << " " << yc2 << " " << R2 << endl;

    // check goodness
    distance = TMath::Sqrt((xc - xc2) * (xc - xc2) + (yc - yc2) * (yc - yc2));
    r_minus_rc = fabs(R - R2);
    //    cout << "distance " << distance << " r - rc " << r_minus_rc << " " << fabs(distance - r_minus_rc) << endl;

    // no backup, just throw it away!
    if(fabs(distance - r_minus_rc) > 2.) continue;

     // put in a list the hits you considered and
      // decided do not belong to the track 
      std::vector< std::pair< int, int > > dontuse;
 
    // ==================
    // MAKE the FINAL CLUSTER (at least in xy)
    //    finalcluster = new PndTrkCluster();
    fFinalCluster->Clear("C");
    // STT
    for(int ihit = 0; ihit < stthitlist->GetNofHits(); ihit++) {
      hit = stthitlist->GetHit(ihit);
      if(hit->IsSttParallel() == kFALSE) continue;
      PndSttTube* tube = (PndSttTube*) fTubeArray->At(hit->GetTubeID());
      if(border == false && tube->GetSectorID() != sectorID) continue;
      else if(border == true && (tube->GetSectorID() != sectorID && tube->GetSectorID() != othersecID)) continue;
      double distance_hit_center = (tube->GetPosition().XYvector() - TVector2(xc2, yc2)).Mod();
      double recoiso = fabs(distance_hit_center - R2);
      if(recoiso < 1.) {
        fFinalCluster->AddHit(hit);
      }
    }
    // MVD PIX
    for(int ihit = 0; ihit < mvdpixhitlist->GetNofHits(); ihit++) {
      hit = mvdpixhitlist->GetHit(ihit);
      //    if(border == false && hit->GetSector() != sectorID) continue;
      //       else if(border == true && (hit->GetSector() != sectorID && hit->GetSector() != othersecID)) continue;
      if(fabs(hit->GetSector() - sectorID) > 1) continue;
      
      double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc2, yc2)).Mod();
      double recoiso = fabs(distance_hit_center - R2);
      if(recoiso < 0.5) {
          // dont want two hits on the same sensor
          int samesensor = false;
          for(int khit = 0; khit < fFinalCluster->GetNofHits(); khit++) {
            PndTrkHit *hitk = fFinalCluster->GetHit(khit);
            if(!hitk->IsMvdPixel()) continue;
            if(hitk->GetSensorID() != hit->GetSensorID()) continue;
            samesensor = true;
            double distance_hitk_center = (hitk->GetPosition().XYvector() - TVector2(xc2, yc2)).Mod();
            double recoisok = fabs(distance_hitk_center - R2);
            if(recoiso < recoisok) {
              fFinalCluster->DeleteHitAndCompress(hitk);
              std::pair< int, int > dontpair(hitk->GetHitID(), hitk->GetDetectorID());
              dontuse.push_back(dontpair);
              fFinalCluster->AddHit(hit);
            }
            else {
              std::pair< int, int > dontpair(hit->GetHitID(), hit->GetDetectorID());
              dontuse.push_back(dontpair);
            }
          }
          //    fFinalCluster->AddHit(hit);
          if(samesensor == false) fFinalCluster->AddHit(hit);
      }
    }
    // MVD STR
    for(int ihit = 0; ihit < mvdstrhitlist->GetNofHits(); ihit++) {
      hit = mvdstrhitlist->GetHit(ihit);
      //   if(border == false && hit->GetSector() != sectorID) continue;
      //       else if(border == true && (hit->GetSector() != sectorID && hit->GetSector() != othersecID)) continue;
      if(fabs(hit->GetSector() - sectorID) > 1) continue;

      double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc2, yc2)).Mod();
      double recoiso = fabs(distance_hit_center - R2);
      if(recoiso < 1.)  {
          // dont want two hits on the same sensor
          int samesensor = false;
          for(int khit = 0; khit < fFinalCluster->GetNofHits(); khit++) {
            PndTrkHit *hitk = fFinalCluster->GetHit(khit);
            if(!hitk->IsMvdStrip()) continue;
            if(hitk->GetSensorID() != hit->GetSensorID()) continue;
            samesensor = true;
            double distance_hitk_center = (hitk->GetPosition().XYvector() - TVector2(xc2, yc2)).Mod();
            double recoisok = fabs(distance_hitk_center - R2);
            if(recoiso < recoisok) {
              fFinalCluster->DeleteHitAndCompress(hitk);
              std::pair< int, int > dontpair(hitk->GetHitID(), hitk->GetDetectorID());
              dontuse.push_back(dontpair);
              fFinalCluster->AddHit(hit);
            }
            else {
              std::pair< int, int > dontpair(hit->GetHitID(), hit->GetDetectorID());
              dontuse.push_back(dontpair);
            }
          }
          //            fFinalCluster->AddHit(hit);
          if(samesensor == false) fFinalCluster->AddHit(hit);
      }
    }
    // GEM
    for(int ihit = 0; ihit < gemhitlist->GetNofHits(); ihit++) {
      hit = gemhitlist->GetHit(ihit);
      //     if(border == false && hit->GetSector() != sectorID) continue;
      //       else if(border == true && (hit->GetSector() != sectorID && hit->GetSector() != othersecID)) continue;
      if(fabs(hit->GetSector() - sectorID) > 1) continue;
      double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc2, yc2)).Mod();
      double recoiso = fabs(distance_hit_center - R2);
      //     if(hit->GetPosition().Perp() > CTOUTRADIUS) cout << "gem recoiso " << recoiso << endl;
      if(recoiso < 1.5  && hit->GetPosition().Perp() > CTOUTRADIUS)  {
        // cout << "add " << hit->GetDetectorID() << " " << hit->GetHitID()  << endl;
        fFinalCluster->AddHit(hit);
      }
    }
   // SCITIL
    tmphit = -1; 
    tmpdistance = 1000;
    for(int ihit = 0; ihit < scithitlist->GetNofHits(); ihit++) {
      hit = scithitlist->GetHit(ihit);
      if(hit->GetXYDistance(hit3) > 30) continue;
      double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc2, yc2)).Mod();
      double recoiso = fabs(distance_hit_center - R2);
      if(recoiso < 1.) {
        if(recoiso < tmpdistance) {
          tmphit = ihit;
          tmpdistance = recoiso;
        }
      }
    }
    if(tmphit > -1) {
      hit = scithitlist->GetHit(tmphit);
      fFinalCluster->AddHit(hit);
    }

    if(fFinalCluster->GetNofHits() == 0) continue;
    //    cout << "FINAL CLUSTER HAS " << fFinalCluster->GetNofHits() << endl;
    if(fDisplayOn) {
      Refresh();
      display->cd(1);
      fFinalCluster->LightUp();
      display->Update();
      display->Modified();
      char goOnChar;
      cin >> goOnChar;
    }
    
    
    // sorting
    for(int ihit = 0; ihit < fFinalCluster->GetNofHits(); ihit++) {
      hit = fFinalCluster->GetHit(ihit);
      hit->SetSortVariable(hit->GetPosition().Perp());
    }
    fFinalCluster->Sort();

    PndTrkTrack finaltrack(fFinalCluster, xc2, yc2, R2);
    finaltrack.ComputeCharge();
   
    //
    //    fDisplayOn = kTRUE;
    if(fDisplayOn) {
      Refresh();
      display->cd(1);
      fFinalCluster->Draw(kGreen);
      finaltrack.Draw(kGreen);
      display->Update();
      display->Modified();
    }

    // =========================== Z PART ==================================
    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    // SKEWED ASSOCIATION ********* CHECK *********
    // -------------------------------------------------------
    //    cout << " %%%%%%%%%%%%%%%%%%%% ZFINDER %%%%%%%%%%%%%%%%%%%%%%%%%%" << endl;

    if(fDisplayOn) DrawZGeometry(-360, 360, -40, 200);
    
    // create cluster for z finding

    // lets start from the skewed --------------------------------
    //    PndTrkCluster skewhitlist = CreateSkewHitList(finaltrack);
    PndTrkSkewHitList skewhitlist;
    //double phimin = 400, phimax = -1, zmin = 1000, zmax = -1; //[R.K. 01/2017] unused variable
    for(int ihit = 0; ihit < stthitlist->GetNofHits(); ihit++) {
      hit = stthitlist->GetHit(ihit);   
      //      cout << hit->IsSttSkew() << " " << hit->GetSector() << " " << TMath::RadToDeg() * hit->GetPosition().Phi() << " " << sectorID << " " << othersecID << endl;
      if(hit->IsSttSkew() == kFALSE) continue;
 
      if(border == false && hit->GetSector() != sectorID) continue;
      else if(border == true && (hit->GetSector() != sectorID && hit->GetSector() != othersecID)) continue;

      int tubeID = hit->GetTubeID();
      PndSttTube *tube = (PndSttTube*) fTubeArray->At(tubeID);
   
      TVector3 wireDirection = tube->GetWireDirection();
      Double_t halflength = tube->GetHalfLength();
      
      TVector3 first  = tube->GetPosition() + wireDirection * halflength; // CHECK
      TVector3 second = tube->GetPosition() - wireDirection * halflength; // CHECK
    
      //    double m1 = (first - second).Y()/(first - second).X();
      //    double q1 = first.Y() - m1 * first.X();
      
      // 1. compute intersection between the track circle and the wire
      TVector2 intersection1, intersection2;
      Int_t nofintersections = tools->ComputeSegmentCircleIntersection(TVector2(first.X(), first.Y()), TVector2(second.X(), second.Y()), xc2, yc2, R2, intersection1, intersection2);
      
      if(nofintersections == 0) continue;
      if(nofintersections >= 2) {
        if(fVerbose) cout << "ERROR: MORE THAN 1 INTERSECTION!!" << endl;
        continue; // CHECK
      }

      // 2. find the tangent to the track in the intersection point
      // tangent approximation
      TVector2 tangent = tools->ComputeTangentInPoint(xc2, yc2, intersection1);
       
      // 3. rotate clockwise the tangent/point/(wire, not explicitely)
      // in order to have the wire parallel to the x axis;
      // then translate everything to have the wire ON the x axis
      double beta = wireDirection.Phi();
      if(beta < 0) beta += TMath::Pi();
      // ... rotate the tangent
      double rtx = TMath::Cos(beta) * tangent.X() + TMath::Sin(beta) * tangent.Y();
      double rty = TMath::Cos(beta) * tangent.Y() - TMath::Sin(beta) * tangent.X();
      TVector2 rottangent(rtx, rty);
      rottangent = rottangent.Unit();
      // ... rotate the point
      double rx = TMath::Cos(beta) * intersection1.X() + TMath::Sin(beta) * intersection1.Y();
      double ry = TMath::Cos(beta) * intersection1.Y() - TMath::Sin(beta) * intersection1.X();
       
      // translation
      Double_t deltay = ry;
      rty -= deltay;
      ry -= deltay;

      // rotm, rotp
      Double_t rotm = rottangent.Y()/rottangent.X();
      Double_t rotp = ry - rotm * rx;

      // ellipsis
      double a = hit->GetIsochrone() * TMath::Cos(SKEW_ANGLE); // CHECK skew angle hard coded
      double b = hit->GetIsochrone();

      // center of ellipsis
      Double_t x0a, x0b, y0;
      y0 = 0.;
      x0a = (-rotp + TMath::Sqrt(b * b + a * a * rotm * rotm)) / rotm;
      x0b = (-rotp - TMath::Sqrt(b * b + a * a * rotm * rotm)) / rotm;
 
      // intersection point
      double intxa = (x0a * b * b - rotm * rotp * a * a) / (b * b + rotm * rotm * a * a);
      double intya = rotm * intxa + rotp;
      double intxb = (x0b * b * b - rotm * rotp * a * a) / (b * b + rotm * rotm * a * a);
      double intyb = rotm * intxb + rotp;
   
      // 4. retraslate/rerotate all back to the original plane
      // retranslate
      y0 += deltay; 
      intya  += deltay; 
      intyb  += deltay; 
   
      // rerotate
      double x0anew = TMath::Cos(beta) * x0a - TMath::Sin(beta) * y0;
      double y0anew = TMath::Cos(beta) * y0 + TMath::Sin(beta) * x0a;
      double x0bnew = TMath::Cos(beta) * x0b - TMath::Sin(beta) * y0;
      double y0bnew = TMath::Cos(beta) * y0 + TMath::Sin(beta) * x0b;
   
      double intxanew = TMath::Cos(beta) * intxa - TMath::Sin(beta) * intya;
      double intyanew = TMath::Cos(beta) * intya + TMath::Sin(beta) * intxa;
      double intxbnew = TMath::Cos(beta) * intxb - TMath::Sin(beta) * intyb;
      double intybnew = TMath::Cos(beta) * intyb + TMath::Sin(beta) * intxb;
   
      intxa = intxanew;
      intya = intyanew;
      intxb = intxbnew;
      intyb = intybnew;

      // now we have x0a, y0a, center of the 1st ellipse
      // and x0b, y0b, center of the 2nd ellipse
      x0a = x0anew;
      double y0a = y0anew;
      x0b = x0bnew;
      double y0b = y0bnew;

      if(fDisplayOn) {
        //char goOnChar; //[R.K. 01/2017] unused variable
        display->cd(1);

        TEllipse *ell1 = new TEllipse(x0a, y0a, a, b, 0, 360, -beta);
        ell1->SetFillStyle(0);
        ell1->SetLineColor(4);
        ell1->Draw("SAME");
        TEllipse *ell2 = new TEllipse(x0b, y0b, a, b, 0, 360, -beta);
        ell2->SetFillStyle(0);
        ell2->SetLineColor(6);
        ell2->Draw("SAME");

        TMarker *mrkinta = new TMarker(intxa, intya, 20);
        mrkinta->SetMarkerColor(4);
        mrkinta->Draw("SAME");
        TMarker *mrkintb = new TMarker(intxb, intyb, 20);
        mrkintb->SetMarkerColor(6);
        mrkintb->Draw("SAME");
      }

      // 5. calculate z coordinate for each intersection
       
      // calculate z0a, z0b of the center of the ellipse
      Double_t t = ((x0a + y0a) - (first.X() + first.Y())) /  ((second.X() - first.X()) + (second.Y() - first.Y()));
      Double_t z0a = first.Z() + (second.Z() - first.Z()) * t;
      //    cout << "0 : calculate t, z0a " << t << " " << z0a << endl;
 
      t = ((x0b + y0b) - (first.X() + first.Y())) /  ((second.X() - first.X()) + (second.Y() - first.Y()));
      Double_t z0b = first.Z() + (second.Z() - first.Z()) * t;
 
      TVector3 center1(x0a, y0a, z0a);
      TVector3 center2(x0b, y0b, z0b);

      // calculate the z of the intersection ON the ellipse (CHECK this step calculations!)
      double dx = intxa - x0a;
      double dy = intya - y0a;
      TVector3 dxdy(dx, dy, 0.0);

      TVector3 tfirst = first + dxdy;
      TVector3 tsecond = second + dxdy;

      t = ((intxa + intya) - (tfirst.X() + tfirst.Y())) /  ((tsecond.X() - tfirst.X()) + (tsecond.Y() - tfirst.Y()));
      double intza = tfirst.Z() + (tsecond.Z() - tfirst.Z()) * t;
 //      if(fDisplayOn) {
//      char goOnChar;
//      display->cd(3);
//      TLine *linezx1 = new TLine(tfirst.X(), tfirst.Z(), tsecond.X(), tsecond.Z());
//      linezx1->SetLineStyle(1);
//      linezx1->Draw("SAME");
//      TMarker *mrkza1 = new TMarker(intxa, intza, 20);
//      mrkza1->SetMarkerColor(kBlue - 9);
//      mrkza1->Draw("SAME");
//      cin >> goOnChar;   
//      display->Update();
//      display->Modified();
//      }

      tfirst = first - dxdy;
      tsecond = second - dxdy;

      t = ((intxb + intyb) - (tfirst.X() + tfirst.Y())) /  ((tsecond.X() - tfirst.X()) + (tsecond.Y() - tfirst.Y()));
      double intzb = tfirst.Z() + (tsecond.Z() - tfirst.Z()) * t;
 
      TVector3 fin_intersection1(intxa, intya, intza);
      TVector3 fin_intersection2(intxb, intyb, intzb);

      // CHECK to be changed
      int trackID = 1;
      double phi1 = finaltrack.ComputePhi(fin_intersection1);
      double phi2 = finaltrack.ComputePhi(fin_intersection2);

     
      // skewhit = new PndTrkSkewHit(*hit, trackID, center1, fin_intersection1, phi1, center2, fin_intersection2, phi2, a, b, -1, beta);
      //    //      skewhit->Print();
      //       skewhitlist.AddHit(skewhit);

      skewhitlist.AddHit(PndTrkSkewHit(*hit, trackID, center1, fin_intersection1, phi1, center2, fin_intersection2, phi2, a, b, -1, beta));


      //      if(fDisplayOn) {
      //        display->cd(4);
      //        TLine *linezphi = new TLine(phi1, fin_intersection1.Z(), phi2, fin_intersection2.Z());
      //        linezphi->SetLineStyle(1);
      //        linezphi->Draw("SAME");
      //        TMarker *mrkzphi1 = new TMarker(phi1, fin_intersection1.Z(), 20);
      //        mrkzphi1->SetMarkerColor(kBlue - 9);
      //        mrkzphi1->Draw("SAME");
      //        TMarker *mrkzphi2 = new TMarker(phi2, fin_intersection2.Z(), 20);
      //        mrkzphi2->SetMarkerColor(kMagenta - 7);
      //        mrkzphi2->Draw("SAME");
      //        display->Update();
      //        display->Modified();
      //       }
      // --------------------------
    }

    // add hits which have a z info
    // and belong to the cluster
    for(int ihit = 0; ihit <  fFinalCluster->GetNofHits(); ihit++) {
      hit = fFinalCluster->GetHit(ihit);
      double phi = finaltrack.ComputePhi(hit->GetPosition());
      hit->SetPhi(phi);
      if(hit->IsStt() == kFALSE) skewhitlist.AddHit(PndTrkSkewHit(*hit));

    }


 //    if(fDisplayOn) {

//       for(int ihit = 0; ihit < fFinalCluster->GetNofHits(); ihit++) {
//      PndTrkHit *hitstt1 = fFinalCluster->GetHit(ihit);
//      if(hitstt1->IsStt() == kFALSE) continue;
//      PndSttHit *stthit1 = (PndSttHit*) fSttHitArray->At(hitstt1->GetHitID());
 
//      indiv = fHitMap->GetIndivisiblesToHit(hitstt1);
//      for(int jhit = 0; jhit < indiv.GetEntriesFast(); jhit++) {
//        PndTrkHit *hitstt2 = (PndTrkHit*) indiv.At(jhit);
//        PndSttHit *stthit2 =  (PndSttHit*) fSttHitArray->At(hitstt2->GetHitID());
          
//        TVector3 poca(0, 0, 0);
//        PndSttGeometryMap geomap;
//        Double_t distancepoca = fMapper->GetGeometryMap()->CalculateStrawPoca(stthit1, stthit2, poca);

//        TVector3 pos1, pos2;
//        stthit1->Position(pos1);
//        pos1.Print();
//        stthit2->Position(pos2);
//        pos2.Print();
//        poca.Print();

//        TMarker *mrk = new TMarker(poca.X(), poca.Y(), 20);
//        mrk->SetMarkerColor(kOrange);
//        mrk->Draw("SAME");
//        char goOnChar;
//        display->cd(1);
//        cin >> goOnChar;   
//        display->Update();
//        display->Modified();
          
//      }
//       }

//       for(int ihit = 0; ihit < skewhitlist.GetNofHits(); ihit++) {
//      PndTrkHit *hitstt1 = skewhitlist.GetHit(ihit);
//      if(hitstt1->IsStt() == kFALSE) continue;
//      PndSttHit *stthit1 = (PndSttHit*) fSttHitArray->At(hitstt1->GetHitID());
 
//      indiv = fHitMap->GetIndivisiblesToHit(hitstt1);
//      for(int jhit = 0; jhit < indiv.GetEntriesFast(); jhit++) {
//        PndTrkHit *hitstt2 = (PndTrkHit*) indiv.At(jhit);
//        PndSttHit *stthit2 =  (PndSttHit*) fSttHitArray->At(hitstt2->GetHitID());
          
//        TVector3 poca(0, 0, 0);
//        PndSttGeometryMap geomap;
//        Double_t distancepoca = fMapper->GetGeometryMap()->CalculateStrawPoca(stthit1, stthit2, poca);

//        TVector3 pos1, pos2;
//        stthit1->Position(pos1);
//        pos1.Print();
//        stthit2->Position(pos2);
//        pos2.Print();
//        poca.Print();

//        TMarker *mrk = new TMarker(poca.X(), poca.Y(), 20);
//        mrk->SetMarkerColor(kOrange);
//        mrk->Draw("SAME");
//        char goOnChar;
//        display->cd(1);
//        cin >> goOnChar;   
//        display->Update();
//        display->Modified();
          
//      }
//       }



//     }


    // ----------------------------------------------
    int phisec[2] = {0, 0};
    for(int ihit = 0; ihit < skewhitlist.GetNofHits(); ihit++) 
      {
        PndTrkHit *hitj = skewhitlist.GetHit(ihit);
        if(!hitj) continue;
        
        TVector3 fin_intersection21(-999, -999, -999),  fin_intersection22(-999, -999, -999);
        double phi21 = -999, phi22 = -999;
        
        if(hitj->IsStt() == kTRUE) {
          PndTrkSkewHit *skewhit2 = (PndTrkSkewHit*) hitj;
          
          fin_intersection21 = skewhit2->GetIntersection1();
          fin_intersection22 = skewhit2->GetIntersection2();
          phi21 = skewhit2->GetPhi1();
          phi22 = skewhit2->GetPhi2();
          
          double phimean = 0.5 * (phi21 + phi22);
          if(phimean >= 0 && phimean < 180) phisec[0]++;
          else  phisec[1]++;
          
        }
        else {
          fin_intersection21 = hitj->GetPosition();
          phi21 = hitj->GetPhi();
          if(phi21 >= 0 && phi21 < 180) phisec[0]++;
          else  phisec[1]++;
        }
      }
    
    //    cout << "PHI SECTOR " << phisec[0] << " " << phisec[1] << endl;

    // correction
    for(int ihit = 0; ihit < skewhitlist.GetNofHits(); ihit++) 
      {
        PndTrkHit *hitj = skewhitlist.GetHit(ihit);
        if(!hitj) continue;
        
        TVector3 fin_intersection21(-999, -999, -999),  fin_intersection22(-999, -999, -999);
        double phi21 = -999, phi22 = -999;
        
        if(hitj->IsStt() == kTRUE) {
          PndTrkSkewHit *skewhit2 = (PndTrkSkewHit*) hitj;
          
          fin_intersection21 = skewhit2->GetIntersection1();
          fin_intersection22 = skewhit2->GetIntersection2();
          phi21 = skewhit2->GetPhi1();
          phi22 = skewhit2->GetPhi2();
          
          double phimean = 0.5 * (phi21 + phi22);
          // if 1st sec
          if((phisec[0] > phisec[1]) && (phimean >= 180)) {
            phi21 -= 180.;
            phi22 -= 180.;
            skewhit2->SetPhi1(phi21);
            skewhit2->SetPhi2(phi22);
          }
          else  if((phisec[0] < phisec[1]) && (phimean < 180)) {  // 2nd sec
            phi21 += 180.;
            phi22 += 180.;
            skewhit2->SetPhi1(phi21);
            skewhit2->SetPhi2(phi22);
          }
        }
        else {
          fin_intersection21 = hitj->GetPosition();
          phi21 = hitj->GetPhi();

          // if 1st sec
          if((phisec[0] > phisec[1]) && (phi21 >= 180)) {
            phi21 -= 180.;
            hitj->SetPhi(phi21);
          }
          else  if((phisec[0] < phisec[1]) && (phi21 < 180)) {  // 2nd sec
            phi21 += 180.;
            hitj->SetPhi(phi21);
          }
        }
      }

    // ----------------------------------------------

    // ========================================================
    std::vector < int > first, second;
    double fitm3 = 0, fitq3 = 0;
    for(int ihit = 0; ihit < skewhitlist.GetNofHits(); ihit++) {
      hit = skewhitlist.GetHit(ihit);
      if(!hit) continue;
      if(hit->IsStt() == kFALSE) continue;

      PndTrkSkewHit *skewhit = (PndTrkSkewHit*) hit;
       
      TVector3 fin_intersection1 = skewhit->GetIntersection1();
      TVector3 fin_intersection2 = skewhit->GetIntersection2();
      double phi1 = skewhit->GetPhi1();
      double phi2 = skewhit->GetPhi2();
       

      if(fDisplayOn) {
        display->cd(4);
        TLine *linezphi = new TLine(phi1, fin_intersection1.Z(), phi2, fin_intersection2.Z());
        linezphi->SetLineStyle(1);
        linezphi->Draw("SAME");
        TMarker *mrkzphi1 = new TMarker(phi1, fin_intersection1.Z(), 20);
        mrkzphi1->SetMarkerColor(kBlue - 9);
        mrkzphi1->Draw("SAME");
        TMarker *mrkzphi2 = new TMarker(phi2, fin_intersection2.Z(), 20);
        mrkzphi2->SetMarkerColor(kMagenta - 7);
        mrkzphi2->Draw("SAME");
        display->Update();
        display->Modified();
      }


      // check neighborings @ layer 8 & 15
      //PndSttTube *tube = (PndSttTube*) fTubeArray->At(hit->GetTubeID()); //[R.K. 01/2017] unused variable
      //      if(tube->GetLayerID() == 8) {
      //        PndTrkHit *thit = stthitlist->GetHit(hit->GetHitID());
      //        TObjArray neighs = fHitMap->GetNeighboringsToHit(thit);
      //        //       cout << thit->GetHitID() << " on layer " << tube->GetLayerID() << " " << neighs.GetEntriesFast() << endl;
      //        for(int j = 0; j < neighs.GetEntriesFast(); j++) {
      //          PndTrkHit *nhit = (PndTrkHit*) neighs.At(j);
      //          PndSttTube *ntube = (PndSttTube*) fTubeArray->At(nhit->GetTubeID());
      //          if(ntube->GetLayerID() == 7) {
      //            //       cout << "hit close to 7" << endl;
      //            first.push_back(ihit);
      //          }
      //        }
      //       }
      //       if(tube->GetLayerID() == 15) 
      //        {
      //          PndTrkHit *thit = stthitlist->GetHit(hit->GetHitID());
      //          TObjArray neighs = fHitMap->GetNeighboringsToHit(thit);
      //          // cout << hit->GetHitID() << " on layer " << tube->GetLayerID() << " " << neighs.GetEntriesFast() << endl;
      //          for(int j = 0; j < neighs.GetEntriesFast(); j++) {
      //            PndTrkHit *nhit = (PndTrkHit*) neighs.At(j);
      //            PndSttTube *ntube = (PndSttTube*) fTubeArray->At(nhit->GetTubeID());
      //            if(ntube->GetLayerID() == 16) {
      //              //               cout << "hit close to 16" << endl;
      //              second.push_back(ihit);
      //            }
      //          }
      //        }
    }
    
    //    if(first.size() != 0 && second.size() != 0) {

    //       double zdistance = 1000;
    //       int tmpi = -1, tmpj = -1;
    //       double tmpiz = -999, tmpjz = -999, tmpiphi = -999, tmpjphi = -999;
      
    //       for(int ihit = 0; ihit < first.size(); ihit++) {
    //  int hitiskeid = first[ihit];
    //  PndTrkSkewHit *skewhiti = (PndTrkSkewHit*) skewhitlist.GetHit(hitiskeid);
    //  TVector3 fin_intersectioni = 0.5 * (skewhiti->GetIntersection1() + skewhiti->GetIntersection2());
    //  double phii = 0.5 * (skewhiti->GetPhi1() + skewhiti->GetPhi2()) ;
    //  for(int jhit = 0; jhit < second.size(); jhit++) {
    //    int hitjskeid = second[jhit];
    //    PndTrkSkewHit *skewhitj = (PndTrkSkewHit*) skewhitlist.GetHit(hitjskeid);
    //    TVector3 fin_intersectionj = 0.5 * (skewhitj->GetIntersection1() + skewhitj->GetIntersection2());
    //    double phij = 0.5 * (skewhitj->GetPhi1() + skewhitj->GetPhi2()) ;
          
    //    double tmpzdistance = fabs(fin_intersectioni.Z() - fin_intersectionj.Z());
    //    if(tmpzdistance < zdistance) {
    //      zdistance = tmpzdistance;
    //      tmpi = hitiskeid;
    //      tmpj = hitjskeid;
    //      tmpiz = fin_intersectioni.Z(); 
    //      tmpjz = fin_intersectionj.Z();
    //      tmpiphi = phii;
    //      tmpjphi = phij;
    //    }
    //  }
    //       }
      
    //       fitm3 = (tmpiz - tmpjz) / (tmpiphi - tmpjphi);
    //       fitq3 = tmpiz - fitm3 * tmpiphi;
    //     }
    //     else {

 
    fLineHisto->Reset();
    for(int ihit = 0; ihit < skewhitlist.GetNofHits(); ihit++) 
      {
        hit = skewhitlist.GetHit(ihit);
        if(!hit) continue;

        TVector3 fin_intersection11(-999, -999, -999),  fin_intersection12(-999, -999, -999);
        double phi11 = -999, phi12 = -999;
 
        if(hit->IsStt() == kTRUE) {
          PndTrkSkewHit *skewhit1 = (PndTrkSkewHit*) hit;
          
          fin_intersection11 = skewhit1->GetIntersection1();
          fin_intersection12 = skewhit1->GetIntersection2();
          phi11 = skewhit1->GetPhi1();
          phi12 = skewhit1->GetPhi2();
        }
        else {
          fin_intersection11 = hit->GetPosition();
          phi11 = hit->GetPhi();
        }

        if(fDisplayOn) {
          display->cd(4);
          if(phi12 != -999)  {
            TLine *linezphi = new TLine(phi11, fin_intersection11.Z(), phi12, fin_intersection12.Z());
            linezphi->SetLineStyle(1);
            linezphi->Draw("SAME");
            TMarker *mrkzphi1 = new TMarker(phi11, fin_intersection11.Z(), 20);
            mrkzphi1->SetMarkerColor(kBlue - 9);
            mrkzphi1->Draw("SAME");
            TMarker *mrkzphi2 = new TMarker(phi12, fin_intersection12.Z(), 20);
            mrkzphi2->SetMarkerColor(kMagenta - 7);
            mrkzphi2->Draw("SAME");
          }
          else {
            TMarker *mrkzphi1 = new TMarker(phi11, fin_intersection11.Z(), 20);
            mrkzphi1->SetMarkerColor(kGreen);
            mrkzphi1->Draw("SAME");
          }
          display->Update();
          display->Modified();
        }
      
        for(int jhit = ihit + 1; jhit < skewhitlist.GetNofHits(); jhit++) 
          {
            PndTrkHit *hitj = skewhitlist.GetHit(jhit);
            if(!hitj) continue;
            
            TVector3 fin_intersection21(-999, -999, -999),  fin_intersection22(-999, -999, -999);
            double phi21 = -999, phi22 = -999;
            
            if(hitj->IsStt() == kTRUE) {
              PndTrkSkewHit *skewhit2 = (PndTrkSkewHit*) hitj;
              
              fin_intersection21 = skewhit2->GetIntersection1();
              fin_intersection22 = skewhit2->GetIntersection2();
              phi21 = skewhit2->GetPhi1();
              phi22 = skewhit2->GetPhi2();
            }
            else {
              fin_intersection21 = hitj->GetPosition();
              phi21 = hitj->GetPhi();
            }

           
            // 1 1
            double cost = (fin_intersection21.Z() - fin_intersection11.Z()) / TMath::Sqrt((phi11 - phi21) * (phi11 - phi21) + (fin_intersection21.Z() - fin_intersection11.Z()) * (fin_intersection21.Z() - fin_intersection11.Z()));
            double theta = TMath::ACos(cost);
            double r1 = phi11 * cost + fin_intersection11.Z() * TMath::Sin(theta);
            double r2 = phi21 * cost + fin_intersection21.Z() * TMath::Sin(theta);
            if(fabs(r1 - r2) > 1.e-9) {
              theta = -TMath::ACos(cost);
              r1 = phi11 * cost + fin_intersection11.Z() * TMath::Sin(theta);
            }
            fLineHisto->Fill(theta * TMath::RadToDeg(), r1);
            //double fitm11 =  -TMath::Cos(theta)/TMath::Sin(theta); //[R.K. 03/2017] unused variable
            //double fitq11 = r1/TMath::Sin(theta); //[R.K. 03/2017] unused variable
            //TLine *line11 = new TLine(0, fitq11, 360, 360 * fitm11 + fitq11); //[R.K. 03/2017] unused variable
            //    line11->Draw("SAME");
            //      cout << phi11 << " " << phi21 << endl;
            
            if(phi12 != -999)  {
              // 2 1
              cost = (fin_intersection21.Z() - fin_intersection12.Z()) / TMath::Sqrt((phi12 - phi21) * (phi12 - phi21) + (fin_intersection21.Z() - fin_intersection12.Z()) * (fin_intersection21.Z() - fin_intersection12.Z()));
              theta = TMath::ACos(cost);
              r1 = phi12 * cost + fin_intersection12.Z() * TMath::Sin(theta);
              r2 = phi21 * cost + fin_intersection21.Z() * TMath::Sin(theta);
              if(fabs(r1 - r2) > 1.e-9) {
                theta = -TMath::ACos(cost);
                r1 = phi12 * cost + fin_intersection12.Z() * TMath::Sin(theta);
              }
              fLineHisto->Fill(theta * TMath::RadToDeg(), r1);
              //double fitm21 =  -TMath::Cos(theta)/TMath::Sin(theta); //[R.K. 03/2017] unused variable
              //double fitq21 = r1/TMath::Sin(theta); //[R.K. 03/2017] unused variable
              //TLine *line21 = new TLine(0, fitq21, 360, 360 * fitm21 + fitq21); //[R.K. 03/2017] unused variable
              //              line21->Draw("SAME");
              //              cout << phi12 << " " << phi21 << endl;
            }

            if(phi22 != -999)  {
              // 1 2
              cost = (fin_intersection11.Z() - fin_intersection22.Z()) / TMath::Sqrt((phi22 - phi11) * (phi22 - phi11) + (fin_intersection11.Z() - fin_intersection22.Z()) * (fin_intersection11.Z() - fin_intersection22.Z()));
              theta = TMath::ACos(cost);
              r1 = phi22 * cost + fin_intersection22.Z() * TMath::Sin(theta);
              r2 = phi11 * cost + fin_intersection11.Z() * TMath::Sin(theta);
              if(fabs(r1 - r2) > 1.e-9) {
                theta = -TMath::ACos(cost);
                r1 = phi22 * cost + fin_intersection22.Z() * TMath::Sin(theta);
              }
              fLineHisto->Fill(theta * TMath::RadToDeg(), r1);
              //double fitm12 =  -TMath::Cos(theta)/TMath::Sin(theta); //[R.K. 03/2017] unused variable
              //double fitq12 = r1/TMath::Sin(theta); //[R.K. 03/2017] unused variable
              //TLine *line12 = new TLine(0, fitq12, 360, 360 * fitm12 + fitq12); //[R.K. 03/2017] unused variable
              //              line12->Draw("SAME");
              //              cout << phi11<< " " << phi22<< endl;         
            }

            if(phi12 != -999 && phi22 != -999)  {
              // 2 2
              cost = (fin_intersection12.Z() - fin_intersection22.Z()) / TMath::Sqrt((phi22 - phi12) * (phi22 - phi12) + (fin_intersection12.Z() - fin_intersection22.Z()) * (fin_intersection12.Z() - fin_intersection22.Z()));
              theta = TMath::ACos(cost);
              r1 = phi22 * cost + fin_intersection22.Z() * TMath::Sin(theta);
              r2 = phi12 * cost + fin_intersection12.Z() * TMath::Sin(theta);
              if(fabs(r1 - r2) > 1.e-9) {
                theta = -TMath::ACos(cost);
                r1 = phi22 * cost + fin_intersection22.Z() * TMath::Sin(theta);
              }
              fLineHisto->Fill(theta * TMath::RadToDeg(), r1);
              //double fitm22 =  -TMath::Cos(theta)/TMath::Sin(theta); //[R.K. 03/2017] unused variable
              //double fitq22 = r1/TMath::Sin(theta); //[R.K. 03/2017] unused variable
              //TLine *line22 = new TLine(0, fitq22, 360, 360 * fitm22 + fitq22); //[R.K. 03/2017] unused variable
              //               line22->Draw("SAME");
              //               cout << phi12 << " " << phi22<< endl;
            }
          }
      }

    if(fDisplayOn) {
      display->cd(3);
      fLineHisto->Draw("colz");
      display->cd(4);
      display->Update();
      display->Modified();
      char goOnChar;
      cin >> goOnChar;
    }

    int bin = fLineHisto->GetMaximumBin();
    int binx, biny, binz;
    fLineHisto->GetBinXYZ(bin, binx, biny, binz);
    double tpeak = fLineHisto->GetXaxis()->GetBinCenter(binx);
    double rpeak = fLineHisto->GetYaxis()->GetBinCenter(biny);
    //  cout << "tpeak " << tpeak << " rpeak " << rpeak << endl;
    fitm3 = -TMath::Cos(tpeak * TMath::DegToRad())/TMath::Sin(tpeak * TMath::DegToRad());
    fitq3 = rpeak/TMath::Sin(tpeak * TMath::DegToRad());
    // }
  
    // ==========================================
    fFitter->Reset();
    for(int ihit = 0; ihit < skewhitlist.GetNofHits(); ihit++) 
      {
        hit = skewhitlist.GetHit(ihit);
        if(!hit) continue;
        
        TVector3 fin_intersection11(-999, -999, -999),  fin_intersection12(-999, -999, -999);
        double phi11 = -999, phi12 = -999;
        
        double phi = -999, z = -999, sigma = -999;

        if(hit->IsStt() == kTRUE) {
          PndTrkSkewHit *skewhit1 = (PndTrkSkewHit*) hit;
          
          fin_intersection11 = skewhit1->GetIntersection1();
          fin_intersection12 = skewhit1->GetIntersection2();
          phi11 = skewhit1->GetPhi1();
          phi12 = skewhit1->GetPhi2();

          z = 0.5 * (fin_intersection11.Z() + fin_intersection12.Z());
          phi = 0.5 * (phi11 + phi12);
          sigma = (fin_intersection11.Z() - fin_intersection12.Z())/TMath::Sqrt(12.);
        }
        else {
          fin_intersection11 = hit->GetPosition();
          phi11 = hit->GetPhi();
          
          z = fin_intersection11.Z();
          phi = phi11;
          sigma = 0.1;
        }
        
        fFitter->SetPointToFit(phi, z, sigma); // CHECK the error?
        if(fDisplayOn) {
          display->cd(4);
          if(phi12 != -999)  {
            TLine *linezphi = new TLine(phi11, fin_intersection11.Z(), phi12, fin_intersection12.Z());
            linezphi->SetLineStyle(1);
            linezphi->Draw("SAME");
            TMarker *mrkzphi1 = new TMarker(phi11, fin_intersection11.Z(), 20);
            mrkzphi1->SetMarkerColor(kBlue - 9);
            mrkzphi1->Draw("SAME");
            TMarker *mrkzphi2 = new TMarker(phi12, fin_intersection12.Z(), 20);
            mrkzphi2->SetMarkerColor(kMagenta - 7);
            mrkzphi2->Draw("SAME");
          }
          else {
            TMarker *mrkzphi1 = new TMarker(phi11, fin_intersection11.Z(), 20);
            mrkzphi1->SetMarkerColor(kGreen);
            mrkzphi1->Draw("SAME");
          }

          TMarker *mrkzphi = new TMarker(phi, z, 20);
          mrkzphi->SetMarkerColor(kOrange);
          mrkzphi->Draw("SAME");
          
          display->Update();
          display->Modified();
        }
      }
    double fitm3b, fitq3b;
    fFitter->StraightLineFit(fitm3b, fitq3b);
    // ==========================================
    // at low fitm3 the fit prevails over legendre CHECK 
    // this is temporary since it might be different
    // for a different channel
    if(fabs(fitm3b) > 1e-10) {
      if(fabs(fitm3b) > 0.1) {
        fitm3 = fitm3b;
        fitq3 = fitq3b;
      }
    }

    if(fDisplayOn) {
      display->cd(4);
      TLine *line = new TLine(0, fitq3, 360, 360 * fitm3 + fitq3);
      line->SetLineColor(kOrange);
      line->Draw("SAME");
        
      display->Update();
      display->Modified();
      char goOnChar;
      cin >> goOnChar;
    }

   // choose the fin_intersection of the skew
    PndTrkSkewHitList skewhitlist2;
    for(int ihit = 0; ihit < skewhitlist.GetNofHits(); ihit++) {
      hit = (PndTrkHit*) skewhitlist.GetHit(ihit);
      if(!hit) continue;
      if(hit->IsSttSkew() == kFALSE) {

        // check if already discarded in the phi.z procedure
        std::pair< int, int > thispair(hit->GetHitID(), hit->GetDetectorID());
        std::vector < std::pair< int, int > >::iterator itr = dontuse.begin();
        itr = std::find(dontuse.begin(), dontuse.end(), thispair);
        if(itr != dontuse.end()) continue;
        
        double zdistance = fabs(hit->GetPosition().Z() - fitm3 * hit->GetPhi() - fitq3);
        if(zdistance < 5) skewhitlist2.AddHit(hit);
        else dontuse.push_back(thispair);
      }
      else {
        TVector3 fin_intersection1 = ((PndTrkSkewHit*) hit)->GetIntersection1();
        TVector3 fin_intersection2 = ((PndTrkSkewHit*) hit)->GetIntersection2();
        double phi1 = ((PndTrkSkewHit*) hit)->GetPhi1();
        double phi2 = ((PndTrkSkewHit*) hit)->GetPhi2();
   
        double dist1 = fabs(fitm3 * phi1 - fin_intersection1.Z() + fitq3) / TMath::Sqrt(fitm3 * fitm3 + 1); // CHECK ortho distance or not?
        double dist2 = fabs(fitm3 * phi2 - fin_intersection2.Z() + fitq3) / TMath::Sqrt(fitm3 * fitm3 + 1); // CHECK    "           "
     
        distance = 1000;
        dist1 < dist2 ? (distance = dist1, hit->SetPosition(fin_intersection1), hit->SetPhi(phi1)) : (distance = dist2, hit->SetPosition(fin_intersection2), hit->SetPhi(phi2)); 

        if(distance < 10) skewhitlist2.AddHit(hit);
      }
    }

    // further cleaning
    PndTrkSkewHitList skewhitlist3;
    double mvdmeandist = 0, sttmeandist = 0, gemmeandist = 0, scitmeandist = 0;
    int mvdcount = 0, sttcount = 0, gemcount = 0, scitcount = 0;
    for(int ihit = 0; ihit < skewhitlist2.GetNofHits(); ihit++) {
      hit = (PndTrkHit*) skewhitlist2.GetHit(ihit);
      if(!hit) continue;
      double zdistance = fabs(hit->GetPosition().Z() - fitm3 * hit->GetPhi() - fitq3);
      if(hit->IsMvd()) {
           mvdmeandist += zdistance;
           mvdcount++;
      }
      else if(hit->IsStt()) {
           sttmeandist += zdistance;
           sttcount++;
      }
      else if(hit->IsGem()) {
           gemmeandist += zdistance;
           gemcount++;
      }
      else if(hit->IsSciTil()) {
           scitmeandist += zdistance;
           scitcount++;
      }
    }
    if(mvdcount > 0) mvdmeandist /= mvdcount;     
    if(sttcount > 0) sttmeandist /= sttcount;
    if(gemcount > 0) gemmeandist /= gemcount;
    if(scitcount > 0) scitmeandist /= scitcount;


  for(int ihit = 0; ihit < skewhitlist2.GetNofHits(); ihit++) {
      hit = (PndTrkHit*) skewhitlist2.GetHit(ihit);
      if(!hit) continue;
      double zdistance = fabs(hit->GetPosition().Z() - fitm3 * hit->GetPhi() - fitq3);
      if(hit->IsMvd()) {
        //      cout << "mvd " << mvdmeandist << " " << zdistance << " " << mvdmeandist - zdistance << endl;
        if(fabs(mvdmeandist - zdistance) < 2) skewhitlist3.AddHit(hit);
      }
      else if(hit->IsStt()) {
        // cout << "stt " << sttmeandist << " " << zdistance << " " << sttmeandist - zdistance << endl;
        if(fabs(sttmeandist - zdistance) < 10) skewhitlist3.AddHit(hit);
      }
      else if(hit->IsGem()) {
        // cout << "gem " << gemmeandist << " " << zdistance << " " << gemmeandist - zdistance << endl;
        if(fabs(gemmeandist - zdistance) < 20) skewhitlist3.AddHit(hit); // CHECK
      }
      else if(hit->IsSciTil()) {
        // cout << "scit " << scitmeandist << " " << zdistance << " " << scitmeandist - zdistance << endl;
        if(fabs(scitmeandist - zdistance) < 20) skewhitlist3.AddHit(hit); // CHECK
      }
  }
  
  // forget this track!
  if(skewhitlist3.GetNofHits() == 0) continue;

    if(fDisplayOn) {
      display->cd(4);
      

      cout << "final z " << skewhitlist3.GetNofHits() << endl;
      for(int ihit = 0; ihit < skewhitlist3.GetNofHits(); ihit++) {
        hit = (PndTrkHit*) skewhitlist3.GetHit(ihit);

        cout << "hitid " << hit->GetHitID() << " " << hit->GetDetectorID() << endl;
        display->cd(4);
        TMarker *mrkzphi = new TMarker(hit->GetPhi(), hit->GetPosition().Z(), 20);
        mrkzphi->SetMarkerColor(kMagenta);
        mrkzphi->Draw("SAME");
        display->Update();
        display->Modified();
      }

      char goOnChar;
      cin >> goOnChar;
    }

   // -------- refit with a line
    fFitter->Reset();    
     
    // see the hits
    for(int ihit = 0; ihit < skewhitlist3.GetNofHits(); ihit++) {
      hit = skewhitlist3.GetHit(ihit);
      if(!hit) continue;
      TVector3 position = hit->GetPosition();
      double phi = finaltrack.ComputePhi(position);
      fFitter->SetPointToFit(phi, position.Z(), 0.1); // CHECK the error?
      //      cout << "final point " << phi << " " << position.Z() << endl;
      if(fDisplayOn)    {
        display->cd(4);
        TMarker *mrkzphi = new TMarker(phi, position.Z(), 20);
        mrkzphi->SetMarkerColor(kBlue);
        if(hit->IsStt() == kTRUE) mrkzphi->SetMarkerColor(kYellow);
        mrkzphi->Draw("SAME");
        display->Update();
        display->Modified();
      }
    }

    double fitm4, fitq4;
    fFitter->StraightLineFit(fitm4, fitq4);

    if(fDisplayOn) {
      display->cd(4);
      TLine *line = new TLine(0, fitq4, 360, 360 * fitm4 + fitq4);
      line->SetLineColor(4);
      line->Draw("SAME");
      display->Update();
      display->Modified();
      char goOnChar;
      cin >> goOnChar;
    }

    // finalize the cluster
    for(int ihit = 0; ihit < skewhitlist2.GetNofHits(); ihit++) {
      hit = skewhitlist2.GetHit(ihit);
      if(fFinalCluster->DoesContain(hit) == kFALSE) fFinalCluster->AddHit((PndTrkHit*) hit);
    }

    // sorting
    for(int ihit = 0; ihit < fFinalCluster->GetNofHits(); ihit++) {
      hit = fFinalCluster->GetHit(ihit);
      hit->SetSortVariable(hit->GetPosition().Perp());
 
    }
    fFinalCluster->Sort();
    // sorting
    for(int ihit = 0; ihit < fFinalCluster->GetNofHits(); ihit++) {
      hit = fFinalCluster->GetHit(ihit);
    }

    //     fDisplayOn = kFALSE;

    // compute charge
    finaltrack.ComputeCharge();
    
    // last two parameters in real plane
    double tanl = - finaltrack.GetCharge() * fitm4 * (180./TMath::Pi())/R2;
    double z0 = fitq4;
    


    // PndTrkTrack *finaltrack2 = new PndTrkTrack(finalcluster, xc2, yc2, R2);
    finaltrack.SetCluster(fFinalCluster);
    finaltrack.SetZ0(z0);
    finaltrack.SetTanL(tanl);
    finaltrack.SetCluster(fFinalCluster);
    finaltrack.SetCenter(xc2, yc2);
    finaltrack.SetRadius(R2);


//     cout << "TRACK to TRACKLIST " << fTrackList->GetNofTracks() << endl;
//     cout << "X, Y, R " << finaltrack.GetCenter().X() << " " << finaltrack.GetCenter().Y() << " " << finaltrack.GetRadius() << endl;
//     cout << "Z0, TANL " << finaltrack.GetZ0() << " " << finaltrack.GetTanL() << endl;
//     cout << "CHARGE " <<  finaltrack.GetCharge() << endl;
    
    // clusterlist.AddCluster(finalcluster);
    fTrackList->AddTrack(&finaltrack);
  }
   
  //   fDisplayOn = kTRUE;

//   cout << "TRACKS IN TRACKLIST " << fTrackList->GetNofTracks() << endl;
  if(fDisplayOn) {
    //char goOnChar; //[R.K. 01/2017] unused variable
    display->cd(1);
    for(int jtrk = 0; jtrk < fTrackList->GetNofTracks(); jtrk++) {
      PndTrkTrack *track = fTrackList->GetTrack(jtrk);

      track->Draw(kRed);
      display->Update();
      display->Modified();
      
 //      cout << "TRACK " << jtrk << endl;
//       cout << "X, Y, R " << track->GetCenter().X() << " " << track->GetCenter().Y() << " " << track->GetRadius() << endl;
//       cout << "Z0, TANL " << track->GetZ0() << " " << track->GetTanL() << endl;
//       cout << "CHARGE " <<  track->GetCharge() << endl;
//       cin >> goOnChar;
    }
  }

  // ====== MERGIN ==========================
  PndTrkTrackList *mergedtracklist = new PndTrkTrackList();
  // choose what to merge
  std::vector< int > merged;
  merged.resize(fTrackList->GetNofTracks());
  for(int itrk = 0; itrk < fTrackList->GetNofTracks(); itrk++)  merged[itrk] = 0;
  std::map < int , std::vector < int > > mergingtracks;

  for(int itrk = 0; itrk < fTrackList->GetNofTracks(); itrk++) {
    if(merged[itrk] == 1) continue;
    PndTrkTrack *tracki = fTrackList->GetTrack(itrk);
    PndTrkCluster clusteri = tracki->GetCluster();
    std::vector< int > mtracks;
    for(int jtrk = itrk + 1; jtrk < fTrackList->GetNofTracks() ; jtrk++) {
      if(merged[jtrk] == 1) continue;
      PndTrkTrack *trackj = fTrackList->GetTrack(jtrk);
      PndTrkCluster clusterj = trackj->GetCluster();
      if(clusterj.SharedAt(&clusteri, 0.70) == kTRUE) {
        mtracks.push_back(jtrk);
        //      cout << "track " << itrk << " needs merging with track " << jtrk << endl;
        merged[itrk] = 1; // CHECK save time!
        merged[jtrk] = 1;
      }
    }
    if(mtracks.size() == 0)  mtracks.push_back(-1);
    mergingtracks.insert(std::pair<int , std::vector < int > >(itrk, mtracks));
    //   cout << "pair of " << itrk << " and " << mtracks.size() << endl;
  }

  //  cout << "merging " << mergingtracks.size() << endl;
  // do the actual merging
  std::map< int, std::vector < int > >::iterator it;
  for(int itrk = 0; itrk < fTrackList->GetNofTracks(); itrk++) {
    PndTrkTrack *tracki = fTrackList->GetTrack(itrk);
    PndTrkCluster clusteri = tracki->GetCluster();
    it = mergingtracks.find(itrk);
    if(it == mergingtracks.end()) continue;

    std::vector< int > mtracks = it->second;
    // if it has merged tracks
    if(mtracks[0] != -1) {
      //  cout << it->first << "/" << mergingtracks.size() << endl; // " last fit " <<  clusteri.GetNofHits() << endl;
      // cout << "i " << clusteri.GetNofHits() << endl;
      for(size_t ktrk = 0; ktrk < mtracks.size(); ktrk++) {
        int jtrk = mtracks[ktrk];
        PndTrkTrack *trackj = fTrackList->GetTrack(jtrk);
        PndTrkCluster clusterj = trackj->GetCluster();
        clusteri.MergeTo(&clusterj);
      }
    }

   //--------------------------------------
    // to conformal
    fRefHit = clusteri.GetHit(clusteri.GetNofHits() - 1);
    fConformalHitList->Reset();
    double delta, trasl[2];
    ComputeTraAndRot(fRefHit, delta, trasl);
    conform->SetOrigin(trasl[0], trasl[1], delta);
    fConformalHitList->SetConformalTransform(conform);
    // cout << "conformal hits " << fConformalHitList->GetNofHits() << endl;
    
    // fill conformal hits
    int nofconfhits = FillConformalHitList(&clusteri);
  
    // compute conformal plane extremities ---------------------------- this must go to a fctn CHECK
    fUmin =  1000, fVmin =  1000, fRmin =  1000;
    fUmax = -1000, fVmax = -1000, fRmax = -1000;
    double rc_of_min, rc_of_max;
    
    for(int jhit = 0; jhit < fConformalHitList->GetNofHits(); jhit++) {
      PndTrkConformalHit *chit = fConformalHitList->GetHit(jhit);
      double u = chit->GetU();
      double v = chit->GetV();
      double rc = chit->GetIsochrone();
      if(rc < 0) rc = 0;
      // cout << "conf hit " << jhit << " u, v " << u << " " << v << " " << rc << endl;
      u - rc < fUmin ? fUmin = u - rc : fUmin;
      v - rc < fVmin ? fVmin = v - rc : fVmin;
      u + rc > fUmax ? fUmax = u + rc : fUmax;
      v + rc > fVmax ? fVmax = v + rc : fVmax;
      
      double theta1 = TMath::ATan2(v, u);
      double theta2 = theta1 + TMath::Pi();
      
      double r1 = u * TMath::Cos(theta1) + v * TMath::Sin(theta1);
      double r2 = u * TMath::Cos(theta2) + v * TMath::Sin(theta2);
      
      double rimin, rimax;
      r1 < r2 ? (rimin = r1, rimax = r2) : (rimin = r2, rimax = r1);
      
      rimin < fRmin ? (rc_of_min = rc, fRmin = rimin) : fRmin;
      rimax > fRmax ? (rc_of_max = rc, fRmax = rimax) : fRmax;
    }
    
    fRmin -= rc_of_min;
    fRmax += rc_of_max;
    
    // to square the conformal plane
    double du = fUmax - fUmin;
    double dv = fVmax - fVmin;
    double delt = 0.5 * fabs(dv - du);
    du < dv ? (fUmin -= delt, fUmax += delt) : (fVmin -= delt, fVmax += delt);
    
    if(fDisplayOn) {
      DrawGeometryConf(fUmin, fUmax, fVmin, fVmax);
      // ----------------------------------------------------------------------
      for(int ihit = 0; ihit < nofconfhits; ihit++) {
        PndTrkConformalHit *chit = fConformalHitList->GetHit(ihit);
        if(fDisplayOn) {
          chit->Draw(kRed);
        }
      }
    }
    
  
    // last fit
    double xc2 = tracki->GetCenter().X();
    double yc2 = tracki->GetCenter().Y();
    double R2 = tracki->GetRadius();
    double fitm, fitq;

    double xc3, yc3, R3;
    // line or parabola    
    if(1 == 1) {
      bool fitting = AnalyticalFit(&clusteri, xc2, yc2, R2, fitm, fitq);
      if(fitting == kFALSE) continue;
       FromConformalToRealTrack(fitm, fitq, xc3, yc3, R3);
       if(fDisplayOn)  {
         //char goOnChar; //[R.K. 01/2017] unused variable
         display->cd(2);
         TLine *line = new TLine(-10, -10 * fitm + fitq, 10, 10 * fitm + fitq);
         line->SetLineColor(kMagenta);
         line->Draw("SAME");
       }
    }
    else {
      double  fita, fitb, fitc, epsilon;
      bool fitting = AnalyticalParabolaFit(&clusteri, xc2, yc2, R2, fita, fitb, fitc, epsilon);
      if(fitting == kFALSE) continue;
      FromConformalToRealTrackParabola(fita, fitb, fitc, xc3, yc3, R3, epsilon);
    }
    
    if(fDisplayOn)  {
      char goOnChar;
      Refresh();

      display->cd(1);
      clusteri.LightUp();
      TArc *arcm = new TArc(xc3, yc3, R3);
      arcm->SetFillStyle(0);
      arcm->SetLineColor(kMagenta);
      arcm->Draw("SAME");

      display->Update();
      display->Modified();
      cin >> goOnChar;
    }
    
    tracki->SetCluster(&clusteri);
    tracki->SetCenter(xc3, yc3);
    tracki->SetRadius(R3);
  
    mergedtracklist->AddTrack(tracki);
  }

   
//   cout << "TRACKS IN MERGED TRACK LIST " << mergedtracklist->GetNofTracks() << endl;
  if(fDisplayOn) {
    //char goOnChar; //[R.K. 01/2017] unused variable
    display->cd(1);
    for(int jtrk = 0; jtrk < mergedtracklist->GetNofTracks(); jtrk++) {
      PndTrkTrack *track = mergedtracklist->GetTrack(jtrk);

      track->Draw(kBlue);
      display->Update();
      display->Modified();
      
 //      cout << "MERGED TRACK " << jtrk << endl;
//       cout << "X, Y, R " << track->GetCenter().X() << " " << track->GetCenter().Y() << " " << track->GetRadius() << endl;
//       cout << "Z0, TANL " << track->GetZ0() << " " << track->GetTanL() << endl;
//       cout << "CHARGE " <<  track->GetCharge() << endl;
//       cin >> goOnChar;
    }
  }

  // =============================================
  // CLEANING
  // rms
  PndTrkTrackList *cleanedtracklist = new PndTrkTrackList();
  for(int itrk = 0; itrk < mergedtracklist->GetNofTracks(); itrk++) {
    PndTrkTrack *track = mergedtracklist->GetTrack(itrk);
    double xc3 = track->GetCenter().X();
    double yc3 = track->GetCenter().Y();
    double R3 = track->GetRadius();

    bool vote = true;
    // CHI2 ___________________
    double gap[5] = {0, 0, 0, 0, 0};
    int gapcounter[5] = {0, 0, 0, 0, 0};
    PndTrkCluster clusteri = track->GetCluster();
    
    // check if it is a long track
    hit = clusteri.GetHit(0);
    //    cout << "FIRST LAY " << hit->GetDetectorID() << endl;
    if(hit->GetDetectorID() == FairRootManager::Instance()->GetBranchId(fSttBranch)) {
      PndSttTube *tube0 = (PndSttTube* ) fTubeArray->At(hit->GetTubeID());
      //       cout << tube0->GetLayerID() << endl;
      if(tube0->GetLayerID() > 4) continue; // CHECK
    }
    hit = clusteri.GetHit(clusteri.GetNofHits() - 1);
    //    cout << "LAST LAY " << hit->GetDetectorID() << endl;
    if(hit->GetDetectorID() == FairRootManager::Instance()->GetBranchId(fSttBranch)) {
      PndSttTube *tubeN = (PndSttTube* ) fTubeArray->At(hit->GetTubeID());
      //       cout << tubeN->GetLayerID() << endl;
      if(tubeN->GetLayerID() < 16) continue; // CHECK
    }

    for(int ihit = 0; ihit < clusteri.GetNofHits(); ihit++) {
      hit = clusteri.GetHit(ihit);
      int detID = hit->GetDetectorID();
      TVector3 pos = hit->GetPosition();
    
      // mvd pix
      if(detID == FairRootManager::Instance()->GetBranchId(fMvdPixelBranch)) {
        gap[0] += fabs(TMath::Sqrt((pos.X() - xc3) * (pos.X() - xc3) + (pos.Y() - yc3) * (pos.Y() - yc3)) - R3);
        gapcounter[0]++;
      }
      // mvd str
      else if(detID == FairRootManager::Instance()->GetBranchId(fMvdStripBranch)) {
        gap[1] += fabs(TMath::Sqrt((pos.X() - xc3) * (pos.X() - xc3) + (pos.Y() - yc3) * (pos.Y() - yc3)) - R3);
        gapcounter[1]++;
      }
      // stt
      else if(detID == FairRootManager::Instance()->GetBranchId(fSttBranch)) {
        gap[2] += fabs(TMath::Sqrt((pos.X() - xc3) * (pos.X() - xc3) + (pos.Y() - yc3) * (pos.Y() - yc3)) - R3) - hit->GetIsochrone();
        gapcounter[2]++;
      }
      // scitil;
      else if(detID == FairRootManager::Instance()->GetBranchId(fSciTBranch)) {
        gap[3] += fabs(TMath::Sqrt((pos.X() - xc3) * (pos.X() - xc3) + (pos.Y() - yc3) * (pos.Y() - yc3)) - R3);
        gapcounter[3]++;
     }
      // gem
      else if(detID == FairRootManager::Instance()->GetBranchId(fGemBranch)) {
        gap[4] += fabs(TMath::Sqrt((pos.X() - xc3) * (pos.X() - xc3) + (pos.Y() - yc3) * (pos.Y() - yc3)) - R3);
        gapcounter[4]++;
      }
    }

    // give large cuts CHECK
    for(int igap = 0; igap < 5; igap++) {
      if(gapcounter[igap] > 0) {
        gap[igap]/= gapcounter[igap];
        gap[igap] = fabs(gap[igap]);
      }
    }
    if(gap[0] > 2) vote = false; // mvd pix
    if(gap[1] > 2) vote = false; // mvd str
    if(gap[2] > 10) vote = false; // stt
    if(gap[3] > 2) vote = false; // scit
    if(gap[4] > 2) vote = false; // gem
    //    cout << "VOTE " << vote << " " << gap[0] << " " << gap[1]  << " " << gap[2] << " " << gap[3] << " " << gap[4] << endl;

    if(vote == true) cleanedtracklist->AddTrack(track);
  }
  delete mergedtracklist;
//   cout << "TRACKS IN CLEANED TRACK LIST " << cleanedtracklist->GetNofTracks() << endl;

  // at last, add the INDIVISIBLES
  PndTrkTrackList *indivtracklist = new PndTrkTrackList();
  for(int itrk = 0; itrk < cleanedtracklist->GetNofTracks(); itrk++) {
    PndTrkTrack *tracki = cleanedtracklist->GetTrack(itrk);
    PndTrkCluster clusteri = tracki->GetCluster();
    if(fDisplayOn) {
      char goOnChar;
      display->cd(1);
      Refresh();
      clusteri.Draw(kRed);
      display->Update();
      display->Modified();
      cin >> goOnChar ;
    }
    for(int ihit = 0; ihit < clusteri.GetNofHits(); ihit++) {
      hit = clusteri.GetHit(ihit);
      if(hit->GetDetectorID() != FairRootManager::Instance()->GetBranchId(fSttBranch)) continue;
      TObjArray indiv2 = fHitMap->GetIndivisiblesToHit(hit);

      if(fDisplayOn) {
        hit->Draw(kBlue);
        display->Update();
        display->Modified();
      } 
      for(int jhit = 0; jhit < indiv2.GetEntriesFast(); jhit++) {
        PndTrkHit *hit2 = (PndTrkHit*) indiv2.At(jhit);
         if(fDisplayOn) {
           hit2->Draw(kGreen);
           display->Update();
           display->Modified();
         }      
         hit2->SetSortVariable(hit2->GetPosition().Perp());
         if(!clusteri.DoesContain(hit2)) {
           
           //double distance_hit_center = (hit2->GetPosition().XYvector() - TVector2(tracki->GetCenter().X(), tracki->GetCenter().Y())).Mod(); //[R.K. 01/2017] unused variable?
           //double recoiso = fabs(distance_hit_center - tracki->GetRadius()); //[R.K. 01/2017] unused variable
           //      if(recoiso < 0.5)
           clusteri.AddHit(hit2);
         }
      }
      if(fDisplayOn) {
        //char goOnChar; //[R.K. 01/2017] unused variable
        //      cin >> goOnChar ;
      }
    }
    clusteri.Sort();
    tracki->SetCluster(&clusteri);
    if(fDisplayOn) {
      char goOnChar;
      display->cd(1);
      Refresh();
      clusteri.Draw(kMagenta);
      tracki->Draw();
      display->Update();
      display->Modified();
      cin >> goOnChar ;
    }
    indivtracklist->AddTrack(tracki);
  }
  delete cleanedtracklist;

  for(int itrk = 0; itrk < indivtracklist->GetNofTracks(); itrk++) {
    PndTrkTrack *tracki = indivtracklist->GetTrack(itrk);
    fTrackList->AddTrack(tracki);
  }
  delete indivtracklist;
  
  if(fDisplayOn) {
    //char goOnChar; //[R.K. 01/2017] unused variable
    display->cd(1);
    Refresh();
  }
  //
  //   fDisplayOn = kTRUE;
  
  //--------------------------------------
  // PndTrkTrack --> PndTrack
  for(int itrk = 0; itrk < fTrackList->GetNofTracks(); itrk++) {
    PndTrkTrack *track = fTrackList->GetTrack(itrk);
    //     cout << "- ----------------------------------- track red " << track->GetRadius() << endl;
    
    // CHECK CHECK CHECK CHECK CHECK CHECK CHECK CHECK CHECK CHECK CHECK CHECK CHECK CHECK 
    //    temporary hacking not to save the SciTil to PndTrackCand CHECK CHECK CHECK CHECK 
    // CHECK CHECK CHECK CHECK CHECK CHECK CHECK CHECK CHECK CHECK CHECK CHECK CHECK CHECK 
    PndTrkCluster tempcluster = track->GetCluster();
    PndTrkCluster tempcluster2;
    for(int ihit = 0; ihit < tempcluster.GetNofHits(); ihit++) {
      hit = tempcluster.GetHit(ihit);
      if(hit->IsSciTil() == kTRUE) continue;
      tempcluster2.AddHit(hit);  
    }
    track->SetCluster(&tempcluster2);
    //&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&

    PndTrack theTrack = track->ConvertToPndTrack();

    TClonesArray& clref1 = *fTrackArray;
    Int_t size = clref1.GetEntriesFast();
    PndTrack *outputtrack = new(clref1[size]) PndTrack(theTrack.GetParamFirst(),theTrack.GetParamLast(), theTrack.GetTrackCand());
    outputtrack->SetFlag(111);
    if(fabs(outputtrack->GetParamFirst().GetMomentum().Z()) < 1e-10) outputtrack->SetFlag(-111);

    TClonesArray& clref2 = *fTrackCandArray;
    size = clref2.GetEntriesFast();
    PndTrackCand *outputtrackcand = new(clref2[size]) PndTrackCand(theTrack.GetTrackCand());
    
    TClonesArray& clref3 = *fTrkTrackArray;
    size = clref3.GetEntriesFast();
    new(clref3[size]) PndTrkTrack(*track);  // PndTrkTrack *outputtrktrack =  //[R.K.03/2017] unused variable
  
    //    cout << "\033[1;31m RECO R " << outputtrktrack->GetRadius() <<  ", " << outputtrack->GetParamFirst().GetMomentum().Perp() / 0.006 << "\033[0m" << endl;
    //         cout << "MOM FIRST: TOT, PT, PL " << outputtrack->GetParamFirst().GetMomentum().Mag() << " " << outputtrack->GetParamFirst().GetMomentum().Perp() << " " << outputtrack->GetParamFirst().GetMomentum().Z() << endl;
    //     cout << "MOM LAST: TOT, PT, PL " << outputtrack->GetParamLast().GetMomentum().Mag() << " " << outputtrack->GetParamLast().GetMomentum().Perp() << " " << outputtrack->GetParamLast().GetMomentum().Z() << endl;
    
    if(fDisplayOn) {
      char goOnChar;
      Refresh();
      display->cd(1);
      track->Draw(kRed);
      track->GetCluster().LightUp();
      display->Update();
      display->Modified();
     
      cout << "TRACK " << itrk << endl;
      cout << "MOM FIRST: TOT, PT, PL " << outputtrack->GetParamFirst().GetMomentum().Mag() << " " << outputtrack->GetParamFirst().GetMomentum().Perp() << " " << outputtrack->GetParamFirst().GetMomentum().Z() << " nofhits " << outputtrackcand->GetNHits() <<  endl;
      cout << "X, Y, R " << track->GetCenter().X() << " " << track->GetCenter().Y() << " " << track->GetRadius() << endl;
      cout << "Z0, TANL " << track->GetZ0() << " " << track->GetTanL() << endl;
      cout << "CHARGE " <<  track->GetCharge() << endl;
      cin >> goOnChar;
    }
    
  }

  int noflongtracks = fTrackArray->GetEntriesFast();

 // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  // FFFFF W   W DDD 
  // F     W   W D  D
  // FFFF  W W W D   D
  // F     W W W D   D
  // F      W W  DDDD
  //  fDisplayOn = kFALSE;
  //   fDisplayOn = kTRUE;
  // set unusable the hits assigned to long tracks ....................................
  for(int itrk = fNofPrimaries; itrk < fTrackArray->GetEntriesFast(); itrk++) {
    PndTrack *trk = (PndTrack*) fTrackArray->At(itrk);
    PndTrackCand *cand = trk->GetTrackCandPtr();
    if(!cand) 
      { 
        cout << "ERROR track " << itrk << " has no candidate association" << endl; 
        continue;
      }
    //    cout << fNofPrimaries << " track " << trk << " cand " << cand << endl;
    for (size_t ihit = 0; ihit < cand->GetNHits(); ihit++) {
      PndTrackCandHit candhit = cand->GetSortedHit(ihit);
      Int_t hitId = candhit.GetHitId();
      Int_t detId = candhit.GetDetId();

      if(detId == FairRootManager::Instance()->GetBranchId(fMvdPixelBranch)) {
        hit = mvdpixhitlist->GetHitByID(hitId);
      }
      // mvd str
      else if(detId == FairRootManager::Instance()->GetBranchId(fMvdStripBranch)) {
        hit = mvdstrhitlist->GetHitByID(hitId);
      }
      // stt
      else if(detId == FairRootManager::Instance()->GetBranchId(fSttBranch)) {
        hit = stthitlist->GetHitByID(hitId);
      }
      // scitil;
      else if(detId == FairRootManager::Instance()->GetBranchId(fSciTBranch)) {
        hit = scithitlist->GetHitByID(hitId);
      }
      // gem
      else if(detId == FairRootManager::Instance()->GetBranchId(fGemBranch)) {
        hit = gemhitlist->GetHitByID(hitId);
      }
      hit->SetUsedFlag(true);
    } 
    
  }

  if(fDisplayOn)  {
    Refresh();

    for(int itrk = 0; itrk < fTrackArray->GetEntriesFast(); itrk++) {
      PndTrack *trk = (PndTrack*) fTrackArray->At(itrk);
      PndTrkTrack track(trk);
      track.Draw();
    }


    char goOnChar;
    display->Update();
    display->Modified();
    cin >> goOnChar;
  }
  // ........................................................................................

  // Lets start from the GEM stations
  PndTrkCluster gemcluster;

  // sort by layer id 1, 2, 3, 4, 5, 6
  int nofgemhits_on_layer[NOFLAYERS] = {0, 0, 0, 0, 0, 0}; // CHECK
  for(int ihit = 0; ihit < gemhitlist->GetNofHits(); ihit++) {
    hit = gemhitlist->GetHit(ihit);
    if(hit->IsUsed() == kTRUE) continue;
    int layerid = hit->GetSensorID();
    hit->SetSortVariable(layerid);
    gemcluster.AddHit(hit);
    nofgemhits_on_layer[layerid]++;
  }
  gemcluster.Sort();

  for(int ihit = 0; ihit < gemcluster.GetNofHits(); ihit++) {
    PndTrkHit *hiti = gemcluster.GetHit(ihit);
    hiti->SetUsedFlag(kFALSE);
  }

  PndTrkClusterList newclusterlist;

  // make tracklets out of the gem hits ..............................
  //  cout << "GEM CLUSTER " << gemcluster.GetNofHits() << endl;
  for(int ihit = 0; ihit < gemcluster.GetNofHits(); ihit++) {
    PndTrkHit *hiti = gemcluster.GetHit(ihit);
    if(hiti->IsUsed() == kTRUE) continue;
    PndTrkCluster cluster;
    cluster.AddHit(hiti);

    if(fDisplayOn)  {
      Refresh();
      hiti->Draw(kRed);
      //char goOnChar; //[R.K. 01/2017] unused variable
      display->Update();
      display->Modified();
      //  cin >> goOnChar;
    }

    hiti->SetUsedFlag(kTRUE);
    //int layerid = hiti->GetSensorID(); //[R.K. 01/2017] unused variable
    PndTrkHit *tmphiti = hiti;

    bool goOn = true;
    PndTrkHit *tmphitj = hiti;

    while(goOn == true) {

      double tmpdistance = 1000;
      for(int jhit = 0; jhit < gemcluster.GetNofHits(); jhit++) {
        PndTrkHit *hitj = gemcluster.GetHit(jhit);
        if(hitj->IsUsed() == kTRUE) continue;
        int layerjd = hitj->GetSensorID();
        
        if(layerjd != tmphitj->GetSensorID() + 1) continue;
        
        double distance = hitj->GetXYDistance(tmphiti);
        if(distance < tmpdistance) {
          tmphitj = hitj;
          tmpdistance = distance;
          //      cout << "distance " << distance << " " << tmpdistance << endl;
        }
      }

      if(tmpdistance < 20) {
        cluster.AddHit(tmphitj);
        tmphitj->SetUsedFlag(kTRUE);
        tmphiti = tmphitj;

        if(fDisplayOn)  {
          Refresh();
          tmphitj->Draw(kBlue);
          //char goOnChar; //[R.K. 01/2017] unused variable
          display->Update();
          display->Modified();
          //  cin >> goOnChar;
        }
      }
      else goOn = false;
    }

    //    cout << "CLUSTER " << cluster.GetNofHits() << endl;
    if(cluster.GetNofHits() >= 3) {


      // --------------------------------------------------------------
      // FIT THE CLUSTER 
      //
      if(fDisplayOn)  {
        Refresh();
        cluster.LightUp();
        char goOnChar;
        display->Update();
        display->Modified();
        cin >> goOnChar;
      }
        
      // ---------------------------------
      fConformalHitList->Clear("C");
      Double_t delta = 0, trasl[2] = {0., 0.};
      PndTrkHit *refhit = NULL;

      int tmpsensid = 1000;
      for(int jhit = 0; jhit < cluster.GetNofHits(); jhit++) {
        PndTrkHit * hitj = cluster.GetHit(jhit);
        if(hitj->GetSensorID() < tmpsensid) {
          refhit = hitj;
          tmpsensid = hitj->GetSensorID();
        }
      }
      ComputeTraAndRot(refhit, delta, trasl);
        
      conform->SetOrigin(trasl[0], trasl[1], delta);
      fConformalHitList->SetConformalTransform(conform);
        
      // fill conformal hits
      Int_t nofconfhits = FillConformalHitList(&cluster);
        
      // compute conformal plane extremities ----------------------------
      fUmin =  1000, fVmin =  1000, fRmin =  1000;
      fUmax = -1000, fVmax = -1000, fRmax = -1000;
      double rc_of_min, rc_of_max;
      fFitter->Reset();
      for(int jhit = 0; jhit < fConformalHitList->GetNofHits(); jhit++) {
        PndTrkConformalHit *chit = fConformalHitList->GetHit(jhit);
        double u = chit->GetU();
        double v = chit->GetV();
        double rc = chit->GetIsochrone();
        if(rc < 0) rc = 0;

        double sigma = 1000.;
        if(hit->IsGem()) sigma = 0.1 * hit->GetPosition().Z(); // CHECK
        if(TMath::IsNaN(chit->GetPosition().X())) continue; // prevents the nan of the ref hit
        fFitter->SetPointToFit(chit->GetPosition().X(), chit->GetPosition().Y(), sigma);
  
        // cout << "conf hit " << jhit << " u, v " << u << " " << v << " " << rc << endl;
        u - rc < fUmin ? fUmin = u - rc : fUmin;
        v - rc < fVmin ? fVmin = v - rc : fVmin;
        u + rc > fUmax ? fUmax = u + rc : fUmax;
        v + rc > fVmax ? fVmax = v + rc : fVmax;
          
        double theta1 = TMath::ATan2(v, u);
        double theta2 = theta1 + TMath::Pi();
          
        double r1 = u * TMath::Cos(theta1) + v * TMath::Sin(theta1);
        double r2 = u * TMath::Cos(theta2) + v * TMath::Sin(theta2);
          
        double rimin, rimax;
        r1 < r2 ? (rimin = r1, rimax = r2) : (rimin = r2, rimax = r1);
          
        rimin < fRmin ? (rc_of_min = rc, fRmin = rimin) : fRmin;
        rimax > fRmax ? (rc_of_max = rc, fRmax = rimax) : fRmax;
      }
        
      fRmin -= rc_of_min;
      fRmax += rc_of_max;
        
      // to square the conformal plane
      double du = fUmax - fUmin;
      double dv = fVmax - fVmin;
      double delt = fabs(dv - du)/2.;
      du < dv ? (fUmin -= delt, fUmax += delt) : (fVmin -= delt, fVmax += delt);
        
      if(fDisplayOn) {
        DrawGeometryConf(fUmin, fUmax, fVmin, fVmax);
        // ----------------------------------------------------------------------
        for(int khit = 0; khit < nofconfhits; khit++) {
          PndTrkConformalHit *chit = fConformalHitList->GetHit(khit);
          chit->Draw(kBlack);
        }
      }
        
      // ====== REFIT CLUSTER LEGENDRE
      double fitm, fitq;
      fFitter->StraightLineFit(fitm, fitq);

      if(fDisplayOn) {
        RefreshConf();
        DrawGeometryConf(fUmin, fUmax, fVmin, fVmax);
      }
        
      // from line parameters to center/radius in REAL plane
      Double_t xc, yc, R;
      FromConformalToRealTrack(fitm, fitq, xc, yc, R);
     // ----------------------------------



      if(fDisplayOn)  {
        char goOnChar;
        display->cd(1);
        TArc *arcm = new TArc(xc, yc, R);
        arcm->SetFillStyle(0);
        arcm->SetLineColor(3);
        arcm->Draw("SAME");
        display->Update();
        display->Modified();
        cin >> goOnChar;
      }

      newclusterlist.AddCluster(&cluster);
    
      // put in a list the hits you considered and
      // decided do not belong to the track 
      std::vector< std::pair< int, int > > dontuse;
 
 
      // GET SECTOR ID ---------------------------------------------
      std::map< int, int > sectorids;
      for(int jhit = 0; jhit < cluster.GetNofHits(); jhit++) 
        {
          hit = cluster.GetHit(jhit);
          if(hit == fRefHit) continue;
          int secid = hit->GetSector();

          if(sectorids.find(secid) == sectorids.end()) sectorids[secid] = 1;
          else sectorids[secid]++;
        }
      
      int tmpsecentries = 0, tmpsec = -1;
      for(size_t isec = 0; isec < sectorids.size(); isec++) {
        if(tmpsecentries < sectorids[isec]) {
          tmpsecentries = sectorids[isec];
          tmpsec = isec;
        }
      }
      int sectorID = tmpsec;
      //    cout << "SECTOR " << sectorID << " " << sectorids.size() << endl;

      // border?
      bool border = false;
      int othersecID = -1;
      for(size_t isec = 0; isec < sectorids.size(); isec++) {
        if(sectorids[isec] > 0 && (int)isec != sectorID) {
          border = true;
          othersecID = isec;
        }
      }
      //      cout << "SECTOR " << sectorID << " " << sectorids.size() << " " << othersecID << " " << border << endl;
      // --------------------------------------------------------------

      // EVALUATE WHICH SECTORS are interesting
      // due to the curvature radius

      double xydistance = TMath::Sqrt(xc * xc + yc * yc);

     //  cout << CTINRADIUS - R << endl;
      bool searchnearby = false;
      if(xydistance < CTINRADIUS - R) {
//      cout << "************* INTERNAL TO INNER *****************" << endl;
        continue;
      }
      else if(xydistance < CTINRADIUS + R && xydistance < CTOUTRADIUS - R) {
//      cout << "************* INTERSECTING INNER *****************" << endl;
        searchnearby = true;
      }
      else if(xydistance < CTINRADIUS + R) {
//      cout << "************* INTERSECTING BOTH *****************" << endl;
      }
      else if(xydistance < CTOUTRADIUS - R) {
//      cout << "************* INTERNAL *****************" << endl;
        searchnearby = true;
      }
      else if(xydistance < CTOUTRADIUS + R) {
//      cout << "************* INTERSECTING EXTERNAL *****************" << endl;
        searchnearby = true;
      }
      else {
//      cout << "************* EXTERNAL TO OUTER *****************" << endl;
        continue;
      }
 
      // does it cross the target pipe?  
      bool crossL = false;
      double y1left = 0, y2left = 0;
      double delta1 = R * R - (0.5 * PIPEDIAMETER - xc) * (0.5 * PIPEDIAMETER - xc);
      //      cout << "delta1 " << delta1 << endl;
      if(delta1 == 0) {
        y1left =  yc;
        crossL = true;
      }
      else if(delta1 > 0) {
        y1left =  yc + TMath::Sqrt(delta1);
        y2left =  yc - TMath::Sqrt(delta1);
        crossL = true;
      }

      bool crossR = false;
      double y1right = 0, y2right = 0;
      double delta2 = R * R - (-0.5 * PIPEDIAMETER - xc) * (-0.5 * PIPEDIAMETER - xc);
      if(delta2 == 0) {
        y1right =  yc;
        crossR = true;
      }
      else if(delta2 > 0) {
        y1right =  yc + TMath::Sqrt(delta2);
        y2right =  yc - TMath::Sqrt(delta2);
        crossR = true;
      }
      //       cout << "CROSS? " << crossL << " " << crossR << endl;
      bool crossingpipe = false;
      if(crossL && crossR) {
        double ycross = 0.5 * (y1left + y1right);
        if(fabs(ycross) < CTOUTRADIUS  && fabs(ycross) > CTINRADIUS)  crossingpipe = true;
        ycross = 0.5 * (y2left + y2right);
        if(fabs(ycross) < CTOUTRADIUS  && fabs(ycross) > CTINRADIUS)  crossingpipe = true;

        //      cout << ycross << " " << y1left << " " << y1right << " " << y2left << " " << y2right << endl;
      }


      if(crossingpipe) {
        //      cout << "************* CROSSING PIPE *****************" << endl;
        crossingpipe = true;
      }

      // ----------------------------------------- 
      // === CREATE CLUSTER - taken from PndTrkFinder ---> will be put in a fctn
      // in the same sector or 
      // nearby if at the limit of two sectors <<<<<<<<<<<<------------------
      PndTrkCluster cluster2(cluster);
   
      // create cluster depending on fitting
      for(int jhit = 0; jhit < stthitlist->GetNofHits(); jhit++) {
        hit = stthitlist->GetHit(jhit);
        if(hit->IsUsed() == kTRUE) continue;
        if(hit->IsSttParallel() == kFALSE) continue;

        if(crossingpipe == true) {
          if(((hit->GetSector() == 0 && sectorID == 5) && !(hit->GetSector() == 2 && sectorID == 3) && !(hit->GetSector() == 5 && sectorID == 0) && !(hit->GetSector() == 3 && sectorID == 2)) && searchnearby == false) continue;
        }
        else if(searchnearby == true) { // search in this sector and +/- 1
          if(fabs(hit->GetSector() - sectorID) > 1 && !(hit->GetSector() == 5 && sectorID == 0) && !(hit->GetSector() == 0 && sectorID == 5)) continue;
        }
        else {                     // search only in this sector and possible othersector
          if(border == false && hit->GetSector() != sectorID) continue;
          else if(border == true && (hit->GetSector() != sectorID && hit->GetSector() != othersecID)) continue;
        }  
        //double distance = hit->GetXYDistance(TVector3(xc, yc, 0.)); //[R.K. 01/2017] unused variable
      
        double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc, yc)).Mod();
        double recoiso = fabs(distance_hit_center - R);

        if(recoiso < 3.) cluster2.AddHit(hit);
        
      }
      

      // GET SECTOR ID ---------------------------------------------
      sectorids.clear();
      for(int jhit = 0; jhit < cluster2.GetNofHits(); jhit++) 
        {
          hit = cluster2.GetHit(jhit);
          if(hit == fRefHit) continue;
          int secid = hit->GetSector();
          
          if(sectorids.find(secid) == sectorids.end()) sectorids[secid] = 1;
          else sectorids[secid]++;
        }
      
      tmpsecentries = 0, tmpsec = -1;
      for(size_t isec = 0; isec < sectorids.size(); isec++) {
        if(tmpsecentries < sectorids[isec]) {
          tmpsecentries = sectorids[isec];
          tmpsec = isec;
        }
      }
      sectorID = tmpsec;
      //    cout << "SECTOR " << sectorID << " " << sectorids.size() << endl;

      // border?
      border = false;
      othersecID = -1;
      for(size_t isec = 0; isec < sectorids.size(); isec++) {
        if(sectorids[isec] > 0 && (int)isec != sectorID) {
          border = true;
          othersecID = isec;
        }
      }
      //      cout << "SECTOR " << sectorID << " " << sectorids.size() << " " << othersecID << " " << border << endl;
      // --------------------------------------------------------------

      // what about adding the mvd hits now? lets do it!
      // ... and put mvd pixel hits to conformal plane --------------- 
      for(int jhit = 0; jhit < mvdpixhitlist->GetNofHits(); jhit++) {
        hit = mvdpixhitlist->GetHit(jhit);
        if(hit->IsUsed() == kTRUE) continue;
        if(searchnearby == true) { // search in this sector and +/- 1
          if(fabs(hit->GetSector() - sectorID) > 1 && !(hit->GetSector() == 5 && sectorID == 0) && !(hit->GetSector() == 0 && sectorID == 5)) continue;
        }
        else {                     // search only in this sector and possible othersector
          if(border == false && hit->GetSector() != sectorID) continue;
          else if(border == true && (hit->GetSector() != sectorID && hit->GetSector() != othersecID)) continue;
        }  
        //     if(hit->GetSector() != sectorID) continue;
        double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc, yc)).Mod();

        double recoiso = fabs(distance_hit_center - R);
        //      cout << "recoiso pix " << recoiso << endl;
        if(recoiso < 3.) {

          // dont want two hits on the same sensor
          int samesensor = false;
          for(int khit = 0; khit < cluster2.GetNofHits(); khit++) {
            PndTrkHit *hitk = cluster2.GetHit(khit);
            if(!hitk->IsMvdPixel()) continue;
            if(hitk->GetSensorID() != hit->GetSensorID()) continue;
            samesensor = true;
            double distance_hitk_center = (hitk->GetPosition().XYvector() - TVector2(xc, yc)).Mod();
            double recoisok = fabs(distance_hitk_center - R);
            if(recoiso < recoisok) {
              cluster2.DeleteHitAndCompress(hitk);
              std::pair< int, int > dontpair(hitk->GetHitID(), hitk->GetDetectorID());
              dontuse.push_back(dontpair);
              cluster2.AddHit(hit);
            }
            else {
              std::pair< int, int > dontpair(hit->GetHitID(), hit->GetDetectorID());
              dontuse.push_back(dontpair);
            }
          }
          
          if(samesensor == false) cluster2.AddHit(hit);

          if(fDisplayOn)  {
            hit->Draw(kOrange);
            display->Update();
            display->Modified();
          }  
          //     PndTrkConformalHit *chit = conform->GetConformalHit(hit);
          //        conformalhitlist->AddHit(chit);  
        }
      }

      // ... and put mvd strip hits to conformal plane --------------- 
      for(int jhit = 0; jhit < mvdstrhitlist->GetNofHits(); jhit++) {
        hit = mvdstrhitlist->GetHit(jhit);
        if(hit->IsUsed() == kTRUE) continue;
        if(searchnearby == true) { // search in this sector and +/- 1
          if(fabs(hit->GetSector() - sectorID) > 1 && !(hit->GetSector() == 5 && sectorID == 0) && !(hit->GetSector() == 0 && sectorID == 5)) continue;
        }
        else {                     // search only in this sector and possible othersector
          if(border == false && hit->GetSector() != sectorID) continue;
          else if(border == true && (hit->GetSector() != sectorID && hit->GetSector() != othersecID)) continue;
        }  
        // if(hit->GetSector() != sectorID) continue;
        double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc, yc)).Mod();
        double recoiso = fabs(distance_hit_center - R);
        //      cout << "recoiso str " << recoiso << endl;
        if(recoiso < 3.) {

          // dont want two hits on the same sensor
          int samesensor = false;
          for(int khit = 0; khit < cluster2.GetNofHits(); khit++) {
            PndTrkHit *hitk = cluster2.GetHit(khit);
            if(!hitk->IsMvdStrip()) continue;
            if(hitk->GetSensorID() != hit->GetSensorID()) continue;
            samesensor = true;
            double distance_hitk_center = (hitk->GetPosition().XYvector() - TVector2(xc, yc)).Mod();
            double recoisok = fabs(distance_hitk_center - R);
            if(recoiso < recoisok) {
              cluster2.DeleteHitAndCompress(hitk);
              std::pair< int, int > dontpair(hitk->GetHitID(), hitk->GetDetectorID());
              dontuse.push_back(dontpair);
              cluster2.AddHit(hit);
            }
            else {
              std::pair< int, int > dontpair(hit->GetHitID(), hit->GetDetectorID());
              dontuse.push_back(dontpair);
            }
          }
          
          if(samesensor == false) cluster2.AddHit(hit);

          if(fDisplayOn)  {
            hit->Draw(kOrange);
            display->Update();
            display->Modified();
          }  
          PndTrkConformalHit chit = conform->GetConformalHit(hit); 
          fConformalHitList->AddHit(&chit);  
        }
      }
    

      if(fDisplayOn) {
        display->cd(1);
        cluster2.Draw(kRed);
        display->Update();
        display->Modified();
        //char goOnChar; //[R.K. 01/2017] unused variable
        cout << "want to go on?" << endl;
        // cin >> goOnChar;
      } 
  

      // -------- sorting 
      // more complex sorting
      // sort in z ....
      for(int jhit = 0; jhit < cluster2.GetNofHits(); jhit++) {
        hit = cluster2.GetHit(jhit);
        hit->SetSortVariable(hit->GetPosition().Z());
      }
      cluster2.Sort();
      // ... then sort in phi from the 1st hit
      PndTrkTrack track2(&cluster2, xc, yc, R);
      //      cout << "xc, yc, R " << xc << " " << yc << " " << R << endl;
      for(int jhit = 0; jhit < cluster2.GetNofHits(); jhit++) {
        hit = cluster2.GetHit(jhit);
        double phi = track2.ComputePhiFrom(hit->GetPosition(), cluster2.GetHit(0)->GetPosition());
        //      double phi = track2.ComputePhi(hit->GetPosition());
        hit->SetPhi(phi);
        hit->SetSortVariable(phi);
      }
      cluster2.Sort();

      //       // if the track is positive --> add 360 (otherwise is 0 followed by 350, 350...)
      //       track2.ComputeCharge();
      //       double charge = track2.GetCharge();
      //       //      cout << "charge " << charge << endl;
      //       if(charge > 0)      cluster2.GetHit(0)->SetPhi(360.) ; // CHECK

      //       // further check, but maybe nomore necessary CHECK
      //       if(cluster2.GetHit(0)->IsGem() && (cluster2.GetHit(cluster2.GetNofHits() - 1)->IsMvdPixel() || cluster2.GetHit(cluster2.GetNofHits() - 1)->IsMvdStrip())) {
      //        PndTrkCluster cluster2b;
      //        cluster2b.AddHit(cluster2.GetHit(0));
      //        cluster2.ReverseSort();
      //        for(int jhit = 1; jhit < cluster2.GetNofHits(); jhit++) {
      //          cluster2b.AddHit(cluster2.GetHit(jhit));
      //        }
      //        cluster2 = cluster2b;
      //       }
      // ..........................................


      for(int jhit = 0; jhit < cluster2.GetNofHits(); jhit++) {
        hit = cluster2.GetHit(jhit);
        //      cout << "hit " << hit->GetHitID() << " " << hit->GetDetectorID() << " " << hit->GetPhi() << " " << hit->GetSortVariable() << endl;
      }

      // first hypothesis of z slope
      if(fDisplayOn) DrawZGeometry(-360, 360, -40, 200);
      
      fLineHisto->Reset();

      for(int jhit = 0; jhit < cluster2.GetNofHits(); jhit++) {
        hit = cluster2.GetHit(jhit);
        if(hit->IsStt()) continue;
        TVector3 position = hit->GetPosition();
        double phi = hit->GetPhi();
        if(fDisplayOn) {
          //char goOnChar; //[R.K. 01/2017] unused variable
          display->cd(4);
          TMarker *mrkz = NULL;
          if(hit->IsMvdPixel()) mrkz = new TMarker(phi, position.Z(), 21);
          else if(hit->IsMvdStrip()) mrkz = new TMarker(phi, position.Z(), 25);
          else if(hit->IsStt()) mrkz = new TMarker(phi, position.Z(), 6);
          else if(hit->IsGem()) mrkz = new TMarker(phi, position.Z(), 24);
          else if(hit->IsSciTil()) mrkz = new TMarker(phi, position.Z(), 26);

          mrkz->SetMarkerColor(kBlue);
          mrkz->Draw("SAME");
          display->Update();
          display->Modified();
          //      cin >> goOnChar;   
        }
        for(int khit = jhit + 1; khit < cluster2.GetNofHits(); khit++) {
          PndTrkHit*  hitk = cluster2.GetHit(khit);
          if(hitk->IsStt()) continue; 
          TVector3 positionk = hitk->GetPosition();
          double phik = hitk->GetPhi();
          
          double denom =  (phi - phik) * (phi - phik) + (positionk.Z() - position.Z()) * (positionk.Z() - position.Z());
          if(denom == 0) continue;
          double cost = (positionk.Z() - position.Z()) / TMath::Sqrt(denom);
          double theta = TMath::ACos(cost);
          double r1 = phi * cost + position.Z() * TMath::Sin(theta);
          double r2 = phik * cost + positionk.Z() * TMath::Sin(theta);
          double r = r1;
          if(fabs(r1 - r2) > 1.e-9) {
            theta = -TMath::ACos(cost);
            r = phi * cost + position.Z() * TMath::Sin(theta);
          }
          fLineHisto->Fill(theta * TMath::RadToDeg(), r);
          //      cout << theta * TMath::RadToDeg() << " " <<  r << endl;
        }
      }
      int bin = fLineHisto->GetMaximumBin();
      int binx, biny, binz;
      fLineHisto->GetBinXYZ(bin, binx, biny, binz);
      double tpeak = fLineHisto->GetXaxis()->GetBinCenter(binx);
      double rpeak = fLineHisto->GetYaxis()->GetBinCenter(biny);
      //  cout << "tpeak " << tpeak << " rpeak " << rpeak << endl;

      // .........................................
      fFitter->Reset();
      for(int jhit = 0; jhit < cluster2.GetNofHits(); jhit++) {
        hit = cluster2.GetHit(jhit);
        if(!hit->IsGem()) continue;
        TVector3 position = hit->GetPosition();
        double phi = hit->GetPhi();

        if(fDisplayOn) {
          //char goOnChar; //[R.K. 01/2017] unused variable
          display->cd(4);
          TMarker *mrkz = NULL;
          if(hit->IsMvdPixel()) mrkz = new TMarker(phi, position.Z(), 21);
          else if(hit->IsMvdStrip()) mrkz = new TMarker(phi, position.Z(), 25);
          else if(hit->IsStt()) mrkz = new TMarker(phi, position.Z(), 6);
          else if(hit->IsGem()) mrkz = new TMarker(phi, position.Z(), 24);
          else if(hit->IsSciTil()) mrkz = new TMarker(phi, position.Z(), 26);

          mrkz->SetMarkerColor(kBlue);
          mrkz->Draw("SAME");
          display->Update();
          display->Modified();
          //      cin >> goOnChar;   
        }

        double sigma = 1e-5 * position.Z();
        fFitter->SetPointToFit(phi, position.Z(), sigma);

      }

      double fitm4, fitq4;
      fFitter->StraightLineFit(fitm4, fitq4);


      // .........................................

      double fitm44 = -TMath::Cos(tpeak * TMath::DegToRad())/TMath::Sin(tpeak * TMath::DegToRad());
      double fitq44 = rpeak/TMath::Sin(tpeak * TMath::DegToRad());
 
      if(fDisplayOn) {
        display->cd(3);
        fLineHisto->Draw("colz");
        display->cd(4);
        TLine *line = new TLine(-360, -360 * fitm4 + fitq4, 360, 360 * fitm4 + fitq4);
        line->SetLineColor(3);
        line->Draw("SAME");

        TLine *line4 = new TLine(-360, -360 * fitm44 + fitq44, 360, 360 * fitm44 + fitq44);
        line4->SetLineColor(4);
        line4->Draw("SAME");

        display->Update();
        display->Modified();
        //char goOnChar; //[R.K. 01/2017] unused variable
        // cin >> goOnChar;
      }

//       continue;

      // retrieve the hits shifted by 360 deg
      for(int jhit = 0; jhit < cluster2.GetNofHits(); jhit++) {
        hit = cluster2.GetHit(jhit);
        if(hit->IsStt()) continue;
        TVector3 position = hit->GetPosition();
        double phi = hit->GetPhi();
        double distance =  fabs(position.Z() - fitm4 * phi - fitq4);
        
        // retrieve the hits shifted by 360
        if(distance > 100) {
          // try with 360 deg shift
          double comp_phi = (position.Z() - fitq4)/fitm4;
          if(fabs(comp_phi - phi) < 361 &&  fabs(comp_phi - phi) > 359){
            if(comp_phi > phi) phi += 360.;
            else phi -= 360.;
            hit->SetPhi(phi);
            distance =  fabs(position.Z() - fitm4 * phi - fitq4);
            //      cout << "PHI possible! " << fabs(comp_phi - phi) << endl;
          }
        }
      }


      // associate only the right hits in z for gem & mvd
      PndTrkCluster cluster3;
      for(int jhit = 0; jhit < cluster2.GetNofHits(); jhit++) {
        hit = cluster2.GetHit(jhit);
        //      cout << " hit in cluster2: " << jhit << " " << hit->GetDetectorID() << endl;
        if(hit->IsStt()) {
          cluster3.AddHit(hit);
          //      cout << " add hit " << jhit << endl;
        }
        else {
          TVector3 position = hit->GetPosition();
          double phi = hit->GetPhi();
          
          double distance =  fabs(position.Z() - fitm4 * phi - fitq4);
          // cout << " z part " << phi << " " << position.Z() << " " << distance << endl;

          if(distance > 3 && hit->IsMvd() == kTRUE) {
            int hitId = hit->GetHitID();
            PndTrkHit *thishit = NULL;
            if(hit->IsMvdPixel()) thishit = mvdpixhitlist->GetHitByID(hitId);
            else if(hit->IsMvdStrip()) thishit = mvdstrhitlist->GetHitByID(hitId);

            std::pair< int, int > dontpair(hitId, hit->GetDetectorID());
            dontuse.push_back(dontpair);

            thishit->SetUsedFlag(kFALSE);
            //      cout << "distance " << distance << " of hit " << hit->GetHitID() << " " << hit->GetDetectorID() << " " << hit->IsMvdPixel() << endl;
            continue;
          }
          else if(distance > 20 && hit->IsGem() == kTRUE) {
            int hitId = hit->GetHitID();
            PndTrkHit *thishit = gemhitlist->GetHitByID(hitId);
            thishit->SetUsedFlag(kFALSE);

            std::pair< int, int > dontpair(hitId, hit->GetDetectorID());
            dontuse.push_back(dontpair);
            
            //      cout << "distance " << distance << " of hit " << hit->GetDetectorID() << endl;
            continue;
          }


          if(fDisplayOn) {
            //char goOnChar; //[R.K. 01/2017] unused variable
            display->cd(4);
            TMarker *mrkz = new TMarker(phi, position.Z(), 20);
            mrkz->SetMarkerColor(kOrange);
            mrkz->Draw("SAME");
            display->Update();
            display->Modified();
          }
          //      cout << " add hit " << jhit << endl;
          cluster3.AddHit(hit);
        }
      }

      bool stat[3] = {false, false, false};
      for(int jhit = 0; jhit < cluster3.GetNofHits(); jhit++) {
        hit = cluster3.GetHit(jhit);
        if(hit->IsGem() == kFALSE) continue;
        switch(hit->GetSensorID()) {
        case 0:
        case 1:
          stat[0] = true;
          break;
        case 2:
        case 3:
          stat[1] = true;
          break;
        case 4:
        case 5:
          stat[2] = true;
          break;
        }
      }
//       if(stat[0] == false || stat[1] == false || stat[2] == false) continue;
      if(stat[0] == false && stat[1] == false && stat[2] == false) continue;

      cluster3.Sort();
      if(cluster3.GetNofHits() == 0) continue;

      // -------- fit with a line
      fFitter->Reset();    
      for(int jhit = 0; jhit < cluster3.GetNofHits(); jhit++) {
        hit = cluster3.GetHit(jhit);
        if(hit->IsStt()) continue;
        TVector3 position = hit->GetPosition();
        double phi = hit->GetPhi();
        //      cout << " z part " << phi << " " << position.Z() << endl;
        if(fDisplayOn) {
          //char goOnChar; //[R.K. 01/2017] unused variable
          display->cd(4);
          TMarker *mrkz = NULL;
          if(hit->IsMvdPixel()) mrkz = new TMarker(phi, position.Z(), 21);
          else if(hit->IsMvdStrip()) mrkz = new TMarker(phi, position.Z(), 25);
          else if(hit->IsStt()) mrkz = new TMarker(phi, position.Z(), 6);
          else if(hit->IsGem()) mrkz = new TMarker(phi, position.Z(), 24);
          
          mrkz->SetMarkerColor(kBlue);
          mrkz->Draw("SAME");
          display->Update();
          display->Modified();
          //      cin >> goOnChar;   
        }
        
        fFitter->SetPointToFit(phi, position.Z(), 0.1); // CHECK the error?
      }
      
      double fitm5, fitq5;
      fFitter->StraightLineFit(fitm5, fitq5);
      
      if(fDisplayOn) {
        display->cd(4);
        TLine *line = new TLine(-360, -360 * fitm5 + fitq5, 360, 360 * fitm5 + fitq5);
        line->SetLineColor(4);
        line->Draw("SAME");
        display->Update();
        display->Modified();
        //char goOnChar; //[R.K. 01/2017] unused variable
        // cin >> goOnChar;
      }
      
      fitm4 = fitm5;
      fitq4 = fitq5;
      // REFIT ANALYTICALLY ....again taken from-..
      // -------------------------- 
      // if there is a scitil lets use it as seed hit
      // for the conformal map
      fConformalHitList->Clear("C");
      refhit = cluster3.GetHit(0); // cluster3.GetNofHits() - 1);
      trasl[0] = 0; 
      trasl[1] = 0;
      delta = 0;

//       cout <<  cluster3.GetNofHits() << " refhit ---> " << refhit << endl;

      ComputeTraAndRot(refhit, delta, trasl);
      conform->SetOrigin(trasl[0], trasl[1], delta);
      fConformalHitList->SetConformalTransform(conform);

      nofconfhits = FillConformalHitList(&cluster3);
      
      //      cout << "nofhits1: " << nofconfhits << endl;

      // compute conformal plane extremities ---------------------------- this must go to a fctn CHECK
      fUmin =  1000, fVmin =  1000, fRmin =  1000;
      fUmax = -1000, fVmax = -1000, fRmax = -1000;
          
      for(int jhit = 0; jhit < fConformalHitList->GetNofHits(); jhit++) {
        PndTrkConformalHit *chit = fConformalHitList->GetHit(jhit);
        double u = chit->GetU();
        double v = chit->GetV();
        double rc = chit->GetIsochrone();
        if(TMath::IsNaN(u)) continue; // prevents the nan of the ref hit
        if(rc < 0) rc = 0;
        //      cout << "conf hit " << jhit << " u, v " << u << " " << v << " " << rc << endl;
        u - rc < fUmin ? fUmin = u - rc : fUmin;
        v - rc < fVmin ? fVmin = v - rc : fVmin;
        u + rc > fUmax ? fUmax = u + rc : fUmax;
        v + rc > fVmax ? fVmax = v + rc : fVmax;
      
        double theta1 = TMath::ATan2(v, u);
        double theta2 = theta1 + TMath::Pi();
      
        double r1 = u * TMath::Cos(theta1) + v * TMath::Sin(theta1);
        double r2 = u * TMath::Cos(theta2) + v * TMath::Sin(theta2);
      
        double rimin, rimax;
        r1 < r2 ? (rimin = r1, rimax = r2) : (rimin = r2, rimax = r1);
      
        rimin < fRmin ? (rc_of_min = rc, fRmin = rimin) : fRmin;
        rimax > fRmax ? (rc_of_max = rc, fRmax = rimax) : fRmax;
      }
    
      fRmin -= rc_of_min;
      fRmax += rc_of_max;
    
      // to square the conformal plane
      du = fUmax - fUmin;
      dv = fVmax - fVmin;
      delt = fabs(dv - du)/2.;
      du < dv ? (fUmin -= delt, fUmax += delt) : (fVmin -= delt, fVmax += delt);
      // cout << "min/max " << fUmin << " " << fUmax << " " << fVmin << " " << fVmax << endl;
      if(fDisplayOn) {
        DrawGeometryConf(fUmin, fUmax, fVmin, fVmax);
        // ----------------------------------------------------------------------
        for(int jhit = 0; jhit < nofconfhits; jhit++) {
          PndTrkConformalHit *chit = fConformalHitList->GetHit(jhit);
          chit->Draw(kRed);
        }
      }
  
      // ====== REFIT CLUSTER ANALYTICALLY
      double fitm3, fitq3;
      bool fitting = AnalyticalFit(&cluster3, xc, yc, R, fitm3, fitq3);
      if(fitting == kFALSE) continue;
      double xc3, yc3, R3;
      FromConformalToRealTrack(fitm3, fitq3, xc3, yc3, R3);
  
      if(fDisplayOn)  {
        //char goOnChar; //[R.K. 01/2017] unused variable
        display->cd(1);
        TArc *arcm = new TArc(xc3, yc3, R3);
        arcm->SetFillStyle(0);
        arcm->SetLineColor(4);
        arcm->Draw("SAME");
        display->Update();
        display->Modified();
        // cin >> goOnChar;
      }


      // ==================
      // MAKE the FINAL CLUSTER (at least in xy)
      fFinalCluster->Clear("C");
      //       cout << "cluster3 " << cluster3.GetNofHits() << " fFinalCluster " << fFinalCluster->GetNofHits() << endl;
      // GEM
      for(int jhit = 0; jhit < gemhitlist->GetNofHits(); jhit++) {
        hit = gemhitlist->GetHit(jhit);

        // check if already discarded in the phi.z procedure
        std::pair< int, int > thispair(hit->GetHitID(), hit->GetDetectorID());
        std::vector < std::pair< int, int > >::iterator itr = dontuse.begin();
        itr = std::find(dontuse.begin(), dontuse.end(), thispair);
        if(itr != dontuse.end()) continue;

        if(border == false && hit->GetSector() != sectorID) continue;
        else if(border == true && (hit->GetSector() != sectorID && hit->GetSector() != othersecID)) continue;
        double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc3, yc3)).Mod();
        double recoiso = fabs(distance_hit_center - R3);
        if(recoiso < 0.5) {
          hit->SetSortVariable(hit->GetPosition().Z());
          
          // dont want two hits on the same sensor
          int samesensor = false;
          for(int khit = 0; khit < fFinalCluster->GetNofHits(); khit++) {
            PndTrkHit *hitk = fFinalCluster->GetHit(khit);
            if(!hitk->IsGem()) continue;
            if(hitk->GetSensorID() != hit->GetSensorID()) continue;
            samesensor = true;
            double distance_hitk_center = (hitk->GetPosition().XYvector() - TVector2(xc3, yc3)).Mod();
            double recoisok = fabs(distance_hitk_center - R3);
            if(recoiso < recoisok) {
              fFinalCluster->DeleteHitAndCompress(hitk);
              std::pair< int, int > dontpair(hitk->GetHitID(), hitk->GetDetectorID());
              dontuse.push_back(dontpair);
              fFinalCluster->AddHit(hit);
            }
            else {
              std::pair< int, int > dontpair(hit->GetHitID(), hit->GetDetectorID());
              dontuse.push_back(dontpair);
            }
          }
          
          if(samesensor == false) fFinalCluster->AddHit(hit);

//        fFinalCluster->AddHit(hit);
        }
      }
      fFinalCluster->ReverseSort();

      for(int jhit = 0; jhit < fFinalCluster->GetNofHits(); jhit++) {
         hit = fFinalCluster->GetHit(jhit);

         //PndGemHit *gemhit = (PndGemHit*) fGemHitArray->At(hit->GetHitID()); //[R.K. 01/2017] unused variable?
         //int refindex = gemhit->GetRefIndex(); //[R.K. 01/2017] unused variable
         
//       cout << "THIS it is " <<  hit->GetHitID() << " " << hit->GetDetectorID() << " " << hit->GetSensorID() << " " << refindex << endl;
      }


      // check if last station has only one hit ~~~~~~~~~~~~~~~~~~~~~
      // define last and almost last stations    
      int laststat = -1, almostlaststat = -1;
      for(int jhit = 0; jhit < fFinalCluster->GetNofHits(); jhit++) {
        hit = fFinalCluster->GetHit(jhit);
        if(laststat == -1) laststat = hit->GetSensorID();
        if(laststat != -1 && almostlaststat == -1 && hit->GetSensorID() != laststat) almostlaststat = hit->GetSensorID();
      }
      // count
      int hitsonlaststat = 0;
      for(int jhit = 0; jhit < fFinalCluster->GetNofHits(); jhit++) {
        hit = fFinalCluster->GetHit(jhit);
//      cout << "hit " << hit->GetHitID() << " " << hit->GetDetectorID() << " " << hit->GetSensorID() << endl;
        if(hit->GetSensorID() != laststat) continue;
        hitsonlaststat++;
      }


 //      cout << "ON LAST STATION " << laststat << " - " << hitsonlaststat << endl;
      if(laststat == -1 || almostlaststat == -1) continue;
      TVector3 fromhere = fFinalCluster->GetHit(0)->GetPosition(); // CHECK HERE
      //      fromhere.Print();
      if(hitsonlaststat > 1) {
        double dist45 = 1000;
        for(int jhit = 0; jhit < fFinalCluster->GetNofHits(); jhit++) {
          hit = fFinalCluster->GetHit(jhit);
          if(hit->GetSensorID() != laststat) continue;
          else if(hit->GetSensorID() < laststat) break;
          for(int khit = jhit + 1; khit < fFinalCluster->GetNofHits(); khit++) {
            PndTrkHit *hitk = fFinalCluster->GetHit(khit);
            if(hitk->GetSensorID() != almostlaststat) continue;
            else if(hit->GetSensorID() < almostlaststat) break;
            double tmpdist = hit->GetXYDistance(hitk);
            if(tmpdist < dist45) fromhere = hit->GetPosition();
          }
        }
      }
      //      fromhere.Print();

      // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

//       TVector3 fromhere = fFinalCluster->GetHit(0)->GetPosition(); // CHECK HERE
      //       cout << "fFinalCluster, gem " << fFinalCluster->GetNofHits() << endl;

      // STT
      for(int jhit = 0; jhit < stthitlist->GetNofHits(); jhit++) {
        hit = stthitlist->GetHit(jhit);
        if(hit->IsSttParallel() == kFALSE) continue;
        PndSttTube* tube = (PndSttTube*) fTubeArray->At(hit->GetTubeID());
        if(border == false && tube->GetSectorID() != sectorID) continue;
        else if(border == true && (tube->GetSectorID() != sectorID && tube->GetSectorID() != othersecID)) continue;
        double distance_hit_center = (tube->GetPosition().XYvector() - TVector2(xc3, yc3)).Mod();
        double recoiso = fabs(distance_hit_center - R3);
        if(recoiso < 0.5) {
          fFinalCluster->AddHit(hit);
        }
      }
      //      cout << "fFinalCluster, gem + stt " << fFinalCluster->GetNofHits() << endl;


      // MVD PIX
      for(int jhit = 0; jhit < mvdpixhitlist->GetNofHits(); jhit++) {
        hit = mvdpixhitlist->GetHit(jhit);

        // check if already discarded in the phi.z procedure
        std::pair< int, int > thispair(hit->GetHitID(), hit->GetDetectorID());
        std::vector < std::pair< int, int > >::iterator itr = dontuse.begin();
        itr = std::find(dontuse.begin(), dontuse.end(), thispair);
        if(itr != dontuse.end()) continue;
      
        if(border == false && hit->GetSector() != sectorID) continue;
        else if(border == true && (hit->GetSector() != sectorID && hit->GetSector() != othersecID)) continue;
        double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc3, yc3)).Mod();
        double recoiso = fabs(distance_hit_center - R3);
        if(recoiso < 0.5) {


          // dont want two hits on the same sensor
          int samesensor = false;
          for(int khit = 0; khit < fFinalCluster->GetNofHits(); khit++) {
            PndTrkHit *hitk = fFinalCluster->GetHit(khit);
            if(!hitk->IsMvdPixel()) continue;
            if(hitk->GetSensorID() != hit->GetSensorID()) continue;
            samesensor = true;
            double distance_hitk_center = (hitk->GetPosition().XYvector() - TVector2(xc3, yc3)).Mod();
            double recoisok = fabs(distance_hitk_center - R3);
            if(recoiso < recoisok) {
              fFinalCluster->DeleteHitAndCompress(hitk);
              std::pair< int, int > dontpair(hitk->GetHitID(), hitk->GetDetectorID());
              dontuse.push_back(dontpair);
              fFinalCluster->AddHit(hit);
            }
            else {
              std::pair< int, int > dontpair(hit->GetHitID(), hit->GetDetectorID());
              dontuse.push_back(dontpair);
            }
          }
          
          if(samesensor == false) fFinalCluster->AddHit(hit);
          // fFinalCluster->AddHit(hit);

        }
      }
      //           cout << "fFinalCluster, gem + stt + pix " << fFinalCluster->GetNofHits() << endl;


      // MVD STR
      for(int jhit = 0; jhit < mvdstrhitlist->GetNofHits(); jhit++) {
        hit = mvdstrhitlist->GetHit(jhit);
      
        // check if already discarded in the phi.z procedure
        std::pair< int, int > thispair(hit->GetHitID(), hit->GetDetectorID());
        std::vector < std::pair< int, int > >::iterator itr = dontuse.begin();
        itr = std::find(dontuse.begin(), dontuse.end(), thispair);
        if(itr != dontuse.end()) continue;
      
        if(border == false && hit->GetSector() != sectorID) continue;
        else if(border == true && (hit->GetSector() != sectorID && hit->GetSector() != othersecID)) continue;
        double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc3, yc3)).Mod();
        double recoiso = fabs(distance_hit_center - R3);
        if(recoiso < 0.5)  {

          fFinalCluster->AddHit(hit);

        }
      }
      //     cout << "fFinalCluster, gem + stt + str " << fFinalCluster->GetNofHits() << endl;

      // SCITIL
      int tmphit = -1; 
      double tmpdistance = 1000;
      for(int jhit = 0; jhit < scithitlist->GetNofHits(); jhit++) {
        hit = scithitlist->GetHit(jhit);
        double distance_hit_center = (hit->GetPosition().XYvector() - TVector2(xc3, yc3)).Mod();
        double recoiso = fabs(distance_hit_center - R3);
        if(recoiso < 0.5) {
          if(recoiso < tmpdistance) {
            tmphit = jhit;
            tmpdistance = recoiso;
          }
        }
      }
      if(tmphit > -1) {
        hit = scithitlist->GetHit(tmphit);
        fFinalCluster->AddHit(hit);
      }
      //       cout << "fFinalCluster, gem + stt + pix + str + scit " << fFinalCluster->GetNofHits() << endl;

      if(fFinalCluster->GetNofHits() == 0) {
        continue;
      }


      // sorting from last gem

      PndTrkTrack track3(fFinalCluster, xc3, yc3, R3);
      for(int jhit = 0; jhit < fFinalCluster->GetNofHits(); jhit++) {
        hit = fFinalCluster->GetHit(jhit);

        double phi = track3.ComputePhiFrom(hit->GetPosition(), fromhere);
        if(phi == 360) phi = 0;
        hit->SetPhi(phi);
        hit->SetSortVariable(phi);
      
      }
      fFinalCluster->Sort();
      for(int jhit = 0; jhit < fFinalCluster->GetNofHits(); jhit++) {
        hit = fFinalCluster->GetHit(jhit);
        //      cout << "-> " << hit->GetHitID() << " " << hit->GetDetectorID() << " " << hit->GetPhi()  << " " << hit->GetSortVariable() << " " << hit->IsSortable() << endl;
      }
 
      // check the 0/360 discontinuity ..................
      //PndTrkHit *hit1 = fFinalCluster->GetHit(0); //[R.K. 03/2017] unused variable
      //PndTrkHit *hit2 = fFinalCluster->GetHit(1); //[R.K. 03/2017] unused variable
      if(fDisplayOn) {
        for(int jhit = 0; jhit < fFinalCluster->GetNofHits(); jhit++) {
          hit = fFinalCluster->GetHit(jhit);
          //      cout << "-> " << hit->GetHitID() << " " << hit->GetDetectorID() << " " << hit->GetPhi()  << " " << hit->GetSortVariable() << endl;
          TMarker *mrk = new TMarker(hit->GetPosition().X(), hit->GetPosition().Y(), 20);
          mrk->SetMarkerColor(kMagenta);
          mrk->Draw("SAME");
          char goOnChar;
          cin >> goOnChar;
          display->Update();
          display->Modified();
        }
      }

      int counter = 0;
      double meanphi = 0;
      for(int jhit = 0; jhit < fFinalCluster->GetNofHits(); jhit++) {
        hit = fFinalCluster->GetHit(jhit);
        if(!hit->IsGem()) continue;
        double phi = hit->GetPhi();
        if(phi != 0) {
          meanphi += phi;
          counter++;
        }
      }

      if(meanphi > 300) {
        for(int jhit = 0; jhit < fFinalCluster->GetNofHits(); jhit++) {
          hit = fFinalCluster->GetHit(jhit);
          if(!hit->IsGem()) continue;
          double phi = hit->GetPhi();
          if(phi < 10) phi += 360;
          hit->SetPhi(phi);
          hit->SetSortVariable(phi);
        }
        fFinalCluster->Sort();
      }
      else fFinalCluster->ReverseSort();

      if(fDisplayOn) {
        for(int jhit = 0; jhit < fFinalCluster->GetNofHits(); jhit++) {
          hit = fFinalCluster->GetHit(jhit);
          cout << "*** " << hit->GetHitID() << " " << hit->GetDetectorID() << " " << hit->GetPhi()  << " " << hit->GetSortVariable() << endl;
          TMarker *mrk = new TMarker(hit->GetPosition().X(), hit->GetPosition().Y(), 20);
          mrk->SetMarkerColor(kGreen);
          mrk->Draw("SAME");
          char goOnChar;
          cin >> goOnChar;
          display->Update();
          display->Modified();
        }
      }
      // ....................................................

      //     cout << "FINAL CLUSTER HAS " << fFinalCluster->GetNofHits() << endl;
      for(int jhit = 0; jhit < fFinalCluster->GetNofHits(); jhit++) {
        hit = fFinalCluster->GetHit(jhit);
        // cout << "final " << hit->GetHitID() << " " << hit->GetDetectorID() << " " << hit->GetPhi()  << " " << hit->GetSortVariable() << " " << hit->IsSortable() << endl;
      }
      if(fDisplayOn) {
        Refresh();
        fFinalCluster->LightUp();
        for(int jhit = 0; jhit < fFinalCluster->GetNofHits(); jhit++) {
          hit = fFinalCluster->GetHit(jhit);
          TMarker *mrk = new TMarker(hit->GetPosition().X(), hit->GetPosition().Y(), 20);
          mrk->SetMarkerColor(kOrange);
          mrk->Draw("SAME");
          char goOnChar;
          cin >> goOnChar;
          display->Update();
          display->Modified();
        }
        char goOnChar;
        cin >> goOnChar;
      }

      // ====== REFIT CLUSTER ANALYTICALLY
      // REFIT ANALYTICALLY ....again taken from-..
      // -------------------------- 
      // if there is a scitil lets use it as seed hit
      // for the conformal map
      fConformalHitList->Clear("C");
      refhit = fFinalCluster->GetHit(0); // cluster3.GetNofHits() - 1);
      //      cout << "refhit ---> " << refhit << endl;
      ComputeTraAndRot(refhit, delta, trasl);
      conform->SetOrigin(trasl[0], trasl[1], delta);
      fConformalHitList->SetConformalTransform(conform);

      nofconfhits = FillConformalHitList(fFinalCluster);

      // compute conformal plane extremities ---------------------------- this must go to a fctn CHECK
      fUmin =  1000, fVmin =  1000, fRmin =  1000;
      fUmax = -1000, fVmax = -1000, fRmax = -1000;
    
      for(int jhit = 0; jhit < fConformalHitList->GetNofHits(); jhit++) {
        PndTrkConformalHit *chit = fConformalHitList->GetHit(jhit);
        double u = chit->GetU();
        double v = chit->GetV();
        double rc = chit->GetIsochrone();
        if(TMath::IsNaN(u)) continue; // prevents the nan of the ref hit
        if(rc < 0) rc = 0;
        //      cout << "conf hit " << jhit << " u, v " << u << " " << v << " " << rc << endl;
        u - rc < fUmin ? fUmin = u - rc : fUmin;
        v - rc < fVmin ? fVmin = v - rc : fVmin;
        u + rc > fUmax ? fUmax = u + rc : fUmax;
        v + rc > fVmax ? fVmax = v + rc : fVmax;
      
        double theta1 = TMath::ATan2(v, u);
        double theta2 = theta1 + TMath::Pi();
      
        double r1 = u * TMath::Cos(theta1) + v * TMath::Sin(theta1);
        double r2 = u * TMath::Cos(theta2) + v * TMath::Sin(theta2);
      
        double rimin, rimax;
        r1 < r2 ? (rimin = r1, rimax = r2) : (rimin = r2, rimax = r1);
      
        rimin < fRmin ? (rc_of_min = rc, fRmin = rimin) : fRmin;
        rimax > fRmax ? (rc_of_max = rc, fRmax = rimax) : fRmax;
      }
    
      fRmin -= rc_of_min;
      fRmax += rc_of_max;
    
      // to square the conformal plane
      du = fUmax - fUmin;
      dv = fVmax - fVmin;
      delt = fabs(dv - du)/2.;
      du < dv ? (fUmin -= delt, fUmax += delt) : (fVmin -= delt, fVmax += delt);
      //      cout << "min/max " << fUmin << " " << fUmax << " " << fVmin << " " << fVmax << endl;
      if(fDisplayOn) {
        DrawGeometryConf(fUmin, fUmax, fVmin, fVmax);
        // ----------------------------------------------------------------------
        for(int jhit = 0; jhit < nofconfhits; jhit++) {
          PndTrkConformalHit *chit = fConformalHitList->GetHit(jhit);
          chit->Draw(kBlue);
        }
      }
    

      //       cout << "MINUIT FIT FWD" << endl;
      double fitm6, fitq6;
      fitting = AnalyticalFit(fFinalCluster, xc3, yc3, R3, fitm6, fitq6);
      if(fitting == kFALSE) continue;
      
      double xc6, yc6, R6;
      FromConformalToRealTrack(fitm6, fitq6, xc6, yc6, R6);

     // CHECK 15/0.006 cm
      if(R6 > 2500) continue;
      PndTrkTrack finaltrack(fFinalCluster, xc6, yc6, R6);
      finaltrack.ComputeCharge();
 
      if(fDisplayOn)  {
        char goOnChar;

        display->cd(2);
        TLine *line = new TLine(-10, -10 * fitm6 + fitq6, 10, 10 * fitm6 + fitq6);
        line->SetLineColor(kMagenta);
        line->Draw("SAME");

        display->cd(1);
        TArc *arcm = new TArc(xc6, yc6, R6);
        arcm->SetFillStyle(0);
        arcm->SetLineColor(kMagenta);
        arcm->Draw("SAME");

        display->Update();
        display->Modified();
        cin >> goOnChar;
      }

      if(fDisplayOn)  {
        char goOnChar;
        display->Update();
        display->Modified();
        cin >> goOnChar;
      }

      // ============================ Z PART FOR FWD
      // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      // SKEWED ASSOCIATION ********* CHECK *********
      // -------------------------------------------------------
      //    cout << " %%%%%%%%%%%%%%%%%%%% ZFINDER %%%%%%%%%%%%%%%%%%%%%%%%%%" << endl;
    
      if(fDisplayOn) DrawZGeometry(-360, 360, -40, 200);

      // create cluster for z finding

      // lets start from the skewed --------------------------------
      //    PndTrkCluster skewhitlist = CreateSkewHitList(finaltrack);
      PndTrkSkewHitList skewhitlist;
      //double phimin = 400, phimax = -1, zmin = 1000, zmax = -1; //[R.K. 01/2017] unused variable
      for(int jhit = 0; jhit < stthitlist->GetNofHits(); jhit++) {
        hit = stthitlist->GetHit(jhit); 
        //      cout << hit->IsSttSkew() << " " << hit->GetSector() << " " << TMath::RadToDeg() * hit->GetPosition().Phi() << " " << sectorID << " " << othersecID << endl;
        if(hit->IsSttSkew() == kFALSE) continue;
 
        if(border == false && hit->GetSector() != sectorID) continue;
        else if(border == true && (hit->GetSector() != sectorID && hit->GetSector() != othersecID)) continue;

        int tubeID = hit->GetTubeID();
        PndSttTube *tube = (PndSttTube*) fTubeArray->At(tubeID);
   
        TVector3 wireDirection = tube->GetWireDirection();
        Double_t halflength = tube->GetHalfLength();
      
        TVector3 first  = tube->GetPosition() + wireDirection * halflength; // CHECK
        TVector3 second = tube->GetPosition() - wireDirection * halflength; // CHECK
    
        //    double m1 = (first - second).Y()/(first - second).X();
        //    double q1 = first.Y() - m1 * first.X();
      
        // 1. compute intersection between the track circle and the wire
        TVector2 intersection1, intersection2;
        Int_t nofintersections = tools->ComputeSegmentCircleIntersection(TVector2(first.X(), first.Y()), TVector2(second.X(), second.Y()), xc6, yc6, R6, intersection1, intersection2);
      
        if(nofintersections == 0) continue;
        if(nofintersections >= 2) {
          cout << "ERROR: MORE THAN 1 INTERSECTION!!" << endl;
          continue; // CHECK
        }

        // 2. find the tangent to the track in the intersection point
        // tangent approximation
        TVector2 tangent = tools->ComputeTangentInPoint(xc6, yc6, intersection1);
       
        // 3. rotate clockwise the tangent/point/(wire, not explicitely)
        // in order to have the wire parallel to the x axis;
        // then translate everything to have the wire ON the x axis
        double beta = wireDirection.Phi();
        if(beta < 0) beta += TMath::Pi();
        // ... rotate the tangent
        double rtx = TMath::Cos(beta) * tangent.X() + TMath::Sin(beta) * tangent.Y();
        double rty = TMath::Cos(beta) * tangent.Y() - TMath::Sin(beta) * tangent.X();
        TVector2 rottangent(rtx, rty);
        rottangent = rottangent.Unit();
        // ... rotate the point
        double rx = TMath::Cos(beta) * intersection1.X() + TMath::Sin(beta) * intersection1.Y();
        double ry = TMath::Cos(beta) * intersection1.Y() - TMath::Sin(beta) * intersection1.X();
       
        // translation
        Double_t deltay = ry;
        rty -= deltay;
        ry -= deltay;

        // rotm, rotp
        Double_t rotm = rottangent.Y()/rottangent.X();
        Double_t rotp = ry - rotm * rx;

        // ellipsis
        double a = hit->GetIsochrone() * TMath::Cos(SKEW_ANGLE); // CHECK skew angle hard coded
        double b = hit->GetIsochrone();

        // center of ellipsis
        Double_t x0a, x0b, y0;
        y0 = 0.;
        x0a = (-rotp + TMath::Sqrt(b * b + a * a * rotm * rotm)) / rotm;
        x0b = (-rotp - TMath::Sqrt(b * b + a * a * rotm * rotm)) / rotm;
 
        // intersection point
        double intxa = (x0a * b * b - rotm * rotp * a * a) / (b * b + rotm * rotm * a * a);
        double intya = rotm * intxa + rotp;
        double intxb = (x0b * b * b - rotm * rotp * a * a) / (b * b + rotm * rotm * a * a);
        double intyb = rotm * intxb + rotp;
   
        // 4. retraslate/rerotate all back to the original plane
        // retranslate
        y0 += deltay; 
        intya  += deltay; 
        intyb  += deltay; 
   
        // rerotate
        double x0anew = TMath::Cos(beta) * x0a - TMath::Sin(beta) * y0;
        double y0anew = TMath::Cos(beta) * y0 + TMath::Sin(beta) * x0a;
        double x0bnew = TMath::Cos(beta) * x0b - TMath::Sin(beta) * y0;
        double y0bnew = TMath::Cos(beta) * y0 + TMath::Sin(beta) * x0b;
   
        double intxanew = TMath::Cos(beta) * intxa - TMath::Sin(beta) * intya;
        double intyanew = TMath::Cos(beta) * intya + TMath::Sin(beta) * intxa;
        double intxbnew = TMath::Cos(beta) * intxb - TMath::Sin(beta) * intyb;
        double intybnew = TMath::Cos(beta) * intyb + TMath::Sin(beta) * intxb;
   
        intxa = intxanew;
        intya = intyanew;
        intxb = intxbnew;
        intyb = intybnew;

        // now we have x0a, y0a, center of the 1st ellipse
        // and x0b, y0b, center of the 2nd ellipse
        x0a = x0anew;
        double y0a = y0anew;
        x0b = x0bnew;
        double y0b = y0bnew;

        if(fDisplayOn) {
          //char goOnChar; //[R.K. 01/2017] unused variable
          display->cd(1);

          TEllipse *ell1 = new TEllipse(x0a, y0a, a, b, 0, 360, -beta);
          ell1->SetFillStyle(0);
          ell1->SetLineColor(4);
          ell1->Draw("SAME");
          TEllipse *ell2 = new TEllipse(x0b, y0b, a, b, 0, 360, -beta);
          ell2->SetFillStyle(0);
          ell2->SetLineColor(6);
          ell2->Draw("SAME");

          TMarker *mrkinta = new TMarker(intxa, intya, 20);
          mrkinta->SetMarkerColor(4);
          mrkinta->Draw("SAME");
          TMarker *mrkintb = new TMarker(intxb, intyb, 20);
          mrkintb->SetMarkerColor(6);
          mrkintb->Draw("SAME");
          display->Update();
          display->Modified();
          //    cin >> goOnChar;
     
        }

        // 5. calculate z coordinate for each intersection
       
        // calculate z0a, z0b of the center of the ellipse
        Double_t t = ((x0a + y0a) - (first.X() + first.Y())) /  ((second.X() - first.X()) + (second.Y() - first.Y()));
        Double_t z0a = first.Z() + (second.Z() - first.Z()) * t;
        //    cout << "0 : calculate t, z0a " << t << " " << z0a << endl;
 
        t = ((x0b + y0b) - (first.X() + first.Y())) /  ((second.X() - first.X()) + (second.Y() - first.Y()));
        Double_t z0b = first.Z() + (second.Z() - first.Z()) * t;
 
        TVector3 center1(x0a, y0a, z0a);
        TVector3 center2(x0b, y0b, z0b);

        // calculate the z of the intersection ON the ellipse (CHECK this step calculations!)
        double dx = intxa - x0a;
        double dy = intya - y0a;
        TVector3 dxdy(dx, dy, 0.0);

        TVector3 tfirst = first + dxdy;
        TVector3 tsecond = second + dxdy;

        t = ((intxa + intya) - (tfirst.X() + tfirst.Y())) /  ((tsecond.X() - tfirst.X()) + (tsecond.Y() - tfirst.Y()));
        double intza = tfirst.Z() + (tsecond.Z() - tfirst.Z()) * t;
        if(fDisplayOn) {
          //char goOnChar; //[R.K. 01/2017] unused variable
          display->cd(3);
          TLine *linezx1 = new TLine(tfirst.X(), tfirst.Z(), tsecond.X(), tsecond.Z());
          linezx1->SetLineStyle(1);
          linezx1->Draw("SAME");
          TMarker *mrkza1 = new TMarker(intxa, intza, 20);
          mrkza1->SetMarkerColor(kBlue - 9);
          mrkza1->Draw("SAME");
          // cin >> goOnChar;   
        }

        tfirst = first - dxdy;
        tsecond = second - dxdy;

        t = ((intxb + intyb) - (tfirst.X() + tfirst.Y())) /  ((tsecond.X() - tfirst.X()) + (tsecond.Y() - tfirst.Y()));
        double intzb = tfirst.Z() + (tsecond.Z() - tfirst.Z()) * t;
 
        TVector3 fin_intersection1(intxa, intya, intza);
        TVector3 fin_intersection2(intxb, intyb, intzb);

        // CHECK to be changed
        int trackID = 1;
        double phi1 = finaltrack.ComputePhiFrom(fin_intersection1, fromhere);
        double phi2 = finaltrack.ComputePhiFrom(fin_intersection2, fromhere);
        hit->SetPhi((phi1 + phi2) * 0.5);
        hit->SetSortVariable((phi1 + phi2) * 0.5);
        skewhitlist.AddHit(PndTrkSkewHit(*hit, trackID, center1, fin_intersection1, phi1, center2, fin_intersection2, phi2, a, b, -1, beta));
      }
    
 
      // add hits which have a z info
      // and belong to the cluster
      for(int jhit = 0; jhit <  fFinalCluster->GetNofHits(); jhit++) {
        hit = fFinalCluster->GetHit(jhit);
        //double phi = hit->GetPhi(); // finaltrack.ComputePhiFrom(hit->GetPosition(), fromhere); //[R.K. 01/2017] unused variable
        if(hit->IsStt() == kFALSE) {
          //    hit->SetPhi(phi);
          //    hit->SetSortVariable(phi);
          skewhitlist.AddHit(PndTrkSkewHit(*hit));
        }
      }



      //    cout << "dopo sorting" << endl;
      for(int jhit = 0; jhit <  fFinalCluster->GetNofHits(); jhit++) {
        hit = fFinalCluster->GetHit(jhit);
        if(fDisplayOn) {
          display->cd(1);
          TMarker *mrk = new TMarker(hit->GetPosition().X(), hit->GetPosition().Y(), 20);
          mrk->SetMarkerColor(kBlue);
          mrk->Draw("SAME");
          display->Update();
          display->Modified();
          char goOnChar;
          cin >> goOnChar;
        }
      }

      //      cout << "fitm5 " << fitm5 << " fitq5 " << fitq5 << endl;;
      double fitm7 = fitm5;
      double fitq7 = 0.;
      for(int jhit = 0; jhit < skewhitlist.GetNofHits(); jhit++) {
        hit = skewhitlist.GetHit(jhit);
        if(!hit) continue;
        if(hit->IsStt() == kFALSE) {
          fitq7 = hit->GetPosition().Z() - fitm7 * hit->GetPhi();
          //      cout << "non stt " << hit->GetPhi() << " " << hit->GetPosition().Z() << endl;
        }
      }
    
      if(fDisplayOn) {
        char goOnChar;
        display->cd(4);
        for(int jhit = 0; jhit < skewhitlist.GetNofHits(); jhit++) {
          hit = skewhitlist.GetHit(jhit);
          if(!hit) continue;
          //      cout << "hit.det.phi " << hit->GetHitID() << " " << hit->GetDetectorID() << " " << hit->GetPhi() << endl;
          if(hit->IsStt() == kTRUE) {
            PndTrkSkewHit *skewhit = (PndTrkSkewHit*) hit;
          
            TVector3 fin_intersection1 = skewhit->GetIntersection1();
            TVector3 fin_intersection2 = skewhit->GetIntersection2();
            double phi1 = skewhit->GetPhi1();
            double phi2 = skewhit->GetPhi2();
          
            display->cd(4);
            TLine *linezphi = new TLine(phi1, fin_intersection1.Z(), phi2, fin_intersection2.Z());
            linezphi->SetLineStyle(1);
            linezphi->Draw("SAME");
            TMarker *mrkzphi1 = new TMarker(phi1, fin_intersection1.Z(), 20);
            mrkzphi1->SetMarkerColor(kBlue - 9);
            mrkzphi1->Draw("SAME");
            TMarker *mrkzphi2 = new TMarker(phi2, fin_intersection2.Z(), 20);
            mrkzphi2->SetMarkerColor(kMagenta - 7);
            mrkzphi2->Draw("SAME");
            display->Update();
            display->Modified();
          }
          else {
            cout << "2non stt " << hit->GetPhi() << " " << hit->GetPosition().Z() << endl;
            TMarker *mrkzphi = new TMarker(hit->GetPhi(), hit->GetPosition().Z(), 20);
            mrkzphi->SetMarkerColor(kOrange);
            mrkzphi->Draw("SAME");
            display->Update();
            display->Modified();
          }
        }
        cin >> goOnChar;
      }

    
      if(fDisplayOn) {
        display->cd(4);
        TLine *line = new TLine(-360, -360 * fitm7 + fitq7, 360, 360 * fitm7 + fitq7);
        line->SetLineColor(2);
        line->Draw("SAME");

        display->Update();
        display->Modified();
        char goOnChar;
        cin >> goOnChar;
      }

      // choose the fin_intersection of the skew
      PndTrkSkewHitList skewhitlist2;
      for(int jhit = 0; jhit < skewhitlist.GetNofHits(); jhit++) {
        hit = (PndTrkHit*) skewhitlist.GetHit(jhit);
        if(!hit) continue;
        if(hit->IsSttSkew() == kFALSE) {
          skewhitlist2.AddHit(hit);
          continue;
        }
        else {
          TVector3 fin_intersection1 = ((PndTrkSkewHit*) hit)->GetIntersection1();
          TVector3 fin_intersection2 = ((PndTrkSkewHit*) hit)->GetIntersection2();
          double phi1 = ((PndTrkSkewHit*) hit)->GetPhi1();
          double phi2 = ((PndTrkSkewHit*) hit)->GetPhi2();
   
          double dist1 = fabs(fitm7 * phi1 - fin_intersection1.Z() + fitq7) / TMath::Sqrt(fitm7 * fitm7 + 1); // CHECK ortho distance or not?
          double dist2 = fabs(fitm7 * phi2 - fin_intersection2.Z() + fitq7) / TMath::Sqrt(fitm7 * fitm7 + 1); // CHECK    "           "
     
          double distance = 1000;
          dist1 < dist2 ? (distance = dist1, hit->SetPosition(fin_intersection1), hit->SetPhi(phi1)) : (distance = dist2, hit->SetPosition(fin_intersection2), hit->SetPhi(phi2)); 

          if(distance < 10) skewhitlist2.AddHit(hit);
        }
      }
      fLineHisto->Reset();
      // see the hits
      TVector3 position, positionk;
      double phi, phik;
      for(int jhit = 0; jhit < skewhitlist2.GetNofHits(); jhit++) {
        hit = skewhitlist2.GetHit(jhit);
        if(!hit) continue;

        int solutions = 0;
        if(hit->IsStt()) solutions = 2;
        else solutions = 1;
       
        for(int khit = jhit + 1; khit < skewhitlist2.GetNofHits(); khit++) {
          PndTrkHit*  hitk = skewhitlist2.GetHit(khit);
          if(!hitk) continue;
         
          int ksolutions = 0;
          if(hitk->IsStt()) ksolutions = 2;
          else ksolutions = 1;
         
          for(int jsol = 0; jsol < solutions; jsol++) 
            {
              if(solutions == 1) {
                position = hit->GetPosition();
                phi = hit->GetPhi();
              }
              else if(jsol == 0) {
                position = ((PndTrkSkewHit*) hit)->GetIntersection1();
                phi = ((PndTrkSkewHit*) hit)->GetPhi1();
              }
              else {
                position = ((PndTrkSkewHit*) hit)->GetIntersection2();
                phi = ((PndTrkSkewHit*) hit)->GetPhi2();
              }
             
              for(int ksol = 0; ksol < ksolutions; ksol++) 
                {
                  if(ksolutions == 1) {
                    positionk = hitk->GetPosition();
                    phik = hitk->GetPhi();
                  }
                  else if(ksol == 0) {
                    positionk = ((PndTrkSkewHit*) hitk)->GetIntersection1();
                    phik = ((PndTrkSkewHit*) hitk)->GetPhi1();
                  }
                  else {
                    positionk = ((PndTrkSkewHit*) hitk)->GetIntersection2();
                    phik = ((PndTrkSkewHit*) hitk)->GetPhi2();
                  }
                 
                  double cost = (positionk.Z() - position.Z()) / TMath::Sqrt((phi - phik) * (phi - phik) + (positionk.Z() - position.Z()) * (positionk.Z() - position.Z()));
                  double theta = TMath::ACos(cost);
                  double r1 = phi * cost + position.Z() * TMath::Sin(theta);
                  double r2 = phik * cost + positionk.Z() * TMath::Sin(theta);
                  double r = r1;
                  if(fabs(r1 - r2) > 1.e-9) {
                    theta = -TMath::ACos(cost);
                    r = phi * cost + position.Z() * TMath::Sin(theta);
                  }
                  fLineHisto->Fill(theta * TMath::RadToDeg(), r);
                }
            }
        }
      }

      bin = fLineHisto->GetMaximumBin();
      fLineHisto->GetBinXYZ(bin, binx, biny, binz);
      tpeak = fLineHisto->GetXaxis()->GetBinCenter(binx);
      rpeak = fLineHisto->GetYaxis()->GetBinCenter(biny);
      //  cout << "tpeak " << tpeak << " rpeak " << rpeak << endl;
      double fitm8 = -TMath::Cos(tpeak * TMath::DegToRad())/TMath::Sin(tpeak * TMath::DegToRad());
      double fitq8 = rpeak/TMath::Sin(tpeak * TMath::DegToRad());
 
      if(fDisplayOn) {
        display->cd(3);
        fLineHisto->Draw("colz");
        display->cd(4);
        TLine *line = new TLine(-360, -360 * fitm8 + fitq8, 360, 360 * fitm8 + fitq8);
        line->SetLineColor(3);
        line->Draw("SAME");
        display->Update();
        display->Modified();
        char goOnChar;
        cin >> goOnChar;
      }

      // finalize the cluster
      for(int jhit = 0; jhit < skewhitlist2.GetNofHits(); jhit++) {
        hit = skewhitlist2.GetHit(jhit);
        if(fFinalCluster->DoesContain(hit) == kFALSE) fFinalCluster->AddHit((PndTrkHit*) hit);
      }
      fFinalCluster->Sort();
      if(fFinalCluster->GetHit(0)->IsGem()) {
        if(fFinalCluster->GetHit(1)->GetPosition().Z() < fFinalCluster->GetHit(0)->GetPosition().Z()) fFinalCluster->ReverseSort();
      }

      //       cout << endl;
      for(int jhit = 0; jhit < fFinalCluster->GetNofHits(); jhit++) {
        hit = fFinalCluster->GetHit(jhit);
        //      cout << "final hit " << hit->GetHitID() << " " << hit->GetDetectorID() << " " << hit->GetSortVariable() << endl;
      }


      // ................ final track ......................
      PndTrkTrack finalfwdtrack(fFinalCluster, xc6, yc6, R6);
      // compute charge
      finalfwdtrack.ComputeCharge();
      
      // last two parameters in real plane
      double tanl = - finalfwdtrack.GetCharge() * fitm8 * (180./TMath::Pi())/R6;
      double z0 = fitq8;
      finalfwdtrack.SetZ0(z0);
      finalfwdtrack.SetTanL(tanl);
      fTrackList->AddTrack(&finalfwdtrack);
      //for(int jtrk = 0; jtrk < fTrack //[R.K. 01/2017] unused variableList->GetNofTracks(); jtrk++) {
        //PndTrkTrack *tmptrack = fTrackList->GetTrack(jtrk); //[R.K. 01/2017] unused variable
      //} //[R.K. 01/2017] unused variable
    }    
  }
  
  //   fDisplayOn = kTRUE;
  if(fDisplayOn) {
    //char goOnChar; //[R.K. 01/2017] unused variable
    display->cd(1);
    Refresh();
  }
  // PndTrkTrack --> PndTrack
  for(int itrk = noflongtracks; itrk < fTrackList->GetNofTracks(); itrk++) {
    PndTrkTrack *track = fTrackList->GetTrack(itrk);
    //       cout << "- ----------------------------------- track green " << track->GetRadius() << endl;

    PndTrack theTrack = track->ConvertToPndTrack();

    TClonesArray& clref1 = *fTrackArray;
    Int_t size = clref1.GetEntriesFast();
    PndTrack *outputtrack = new(clref1[size]) PndTrack(theTrack.GetParamFirst(),theTrack.GetParamLast(), theTrack.GetTrackCand());
    outputtrack->SetFlag(222);
    TClonesArray& clref2 = *fTrackCandArray;
    size = clref2.GetEntriesFast();
    PndTrackCand *outputtrackcand = new(clref2[size]) PndTrackCand(theTrack.GetTrackCand());
    
    TClonesArray& clref3 = *fTrkTrackArray;
    size = clref3.GetEntriesFast();
    new(clref3[size]) PndTrkTrack(*track);  //PndTrkTrack*outputtrktrack =  //[R.K.03/2017] unused variable
    
    //     cout << "\033[1;31m RECO R " << outputtrktrack->GetRadius() <<  ", " << outputtrack->GetParamFirst().GetMomentum().Perp() / 0.006 << "\033[0m" << endl;


    //     cout << "MOM FIRST: TOT, PT, PL " << outputtrack->GetParamFirst().GetMomentum().Mag() << " " << outputtrack->GetParamFirst().GetMomentum().Perp() << " " << outputtrack->GetParamFirst().GetMomentum().Z() << endl;
    //     cout << "MOM LAST: TOT, PT, PL " << outputtrack->GetParamLast().GetMomentum().Mag() << " " << outputtrack->GetParamLast().GetMomentum().Perp() << " " << outputtrack->GetParamLast().GetMomentum().Z() << endl;
    
    if(fDisplayOn) {
      char goOnChar;
      display->cd(1);
      track->Draw(kGreen);
      track->GetCluster().LightUp();

      cout << "TRACK " << itrk << endl;
      cout << "MOM FIRST: TOT, PT, PL " << outputtrack->GetParamFirst().GetMomentum().Mag() << " " << outputtrack->GetParamFirst().GetMomentum().Perp() << " " << outputtrack->GetParamFirst().GetMomentum().Z() << " nofhits " << outputtrackcand->GetNHits() <<  endl;
      cout << "X, Y, R " << track->GetCenter().X() << " " << track->GetCenter().Y() << " " << track->GetRadius() << endl;
      //       cout << "Z0, TANL " << track->GetZ0() << " " << track->GetTanL() << endl;
      track->ComputeCharge();

      cout << "CHARGE " <<  track->GetCharge() << endl;
      display->Update();
      display->Modified();
      cin >> goOnChar;
    }
    
  }

  if(fDisplayOn)  {
    char goOnChar;
    cin >> goOnChar;
    display->Update();
    display->Modified();
  }


  //   cout << "HOW MANY TRACKS? " <<  fTrackArray->GetEntriesFast() << endl;
  //   for(int itrk = 0; itrk < fTrackArray->GetEntriesFast(); itrk++) {
  //     PndTrack *trk = (PndTrack*) fTrackArray->At(itrk);
  //     cout << "TRACK " << itrk << " HAS FLAG " << trk->GetFlag() << endl;  
  //   }


  
  Reset();
  fFinalCluster->Clear("C");
  fTrackList->Clear("C");
  fConformalHitList->Clear("C"); 
//   delete indivtracklist;

}

Int_t PndTrkTrackFinder::ExtractLegendre	(	Int_t	mode,
		double &	theta_max,
		double &	r_max
	)

Definition at line 5786 of file PndTrkTrackFinder.cxx.

References PndTrkLegendreTransform::DeleteZoneAroundXYLegendre(), PndTrkLegendreTransform::DeleteZoneAroundXYZoom(), display, DrawLegendreHisto(), PndTrkLegendreTransform::DrawZoom(), PndTrkLegendreTransform::ExtractLegendreMaximum(), PndTrkLegendreTransform::ExtractZoomMaximum(), fConformalHitList, fDisplayOn, fFoundPeaks, PndTrkLegendreTransform::FillZoomHisto(), fVerbose, PndTrkConformalHitList::GetHit(), PndTrkConformalHit::GetIsochrone(), PndTrkConformalHitList::GetNofHits(), PndTrkConformalHit::GetU(), PndTrkConformalHit::GetV(), legendre, PndTrkLegendreTransform::SetUpZoomHisto(), and tr.

Referenced by ApplyLegendre(), and LegendreFit().

                                                                                      {
  if(fDisplayOn) {
    //char goOnChar; //[R.K. 01/2017] unused variable
    //      cin >> goOnChar;
    DrawLegendreHisto();
    //    cout << "LEGENDRE (nof conf hits = " <<  conformalhitlist->GetNofHits() << ")" << endl;
    display->cd();
    //      cin >> goOnChar;
    display->Update();
    display->Modified();
  }
  
  // FIND MAXIMUM IN LEGENDRE HISTO

  //  legendre->ApplyThresholdLegendreHisto(0.3);
  int  maxpeak = legendre->ExtractLegendreMaximum(theta_max, r_max);

  bool alreadythere = false;
  //  if(mode == 0) 
  {

    if(maxpeak <= 3) {
      if(fVerbose > 1)  cout << "\033[1;31m MAXPEAK " << maxpeak <<  ", BREAK NOW! \033[0m" << endl;
      return maxpeak;
    }
  
    for(size_t ialready = 0; ialready < fFoundPeaks.size(); ialready++) {
      std::pair<double, double> foundthetar = fFoundPeaks.at(ialready);
      double foundtheta = foundthetar.first;
      double foundr = foundthetar.second;
      // IF THIS PEAK WAS ALREADY FOUND, DELETE THE PEAK AND GO ON (TO AVOID INFINITE LOOPS)
      if(theta_max == foundtheta && r_max == foundr) {
        legendre->DeleteZoneAroundXYLegendre(theta_max, r_max);
        maxpeak = legendre->ExtractLegendreMaximum(theta_max, r_max);
        alreadythere = true;
        if(fVerbose > 0) cout << "OH NO! THIS PEAK IS ALREADY THERE" << endl;
        return -1;
      }
    }
    
    if(alreadythere == false) {
      std::pair<double, double> tr(theta_max, r_max);
      fFoundPeaks.push_back(tr);
    }
  }
  // ZOOM LEGENDRE HISTO
  legendre->SetUpZoomHisto(theta_max, r_max, 3, 0.005);
  //   cout << "THETA/R " << theta_max << " " << r_max << " maxpeak " << maxpeak << endl;

  for(int ihit = 0; ihit < fConformalHitList->GetNofHits(); ihit++) {
    PndTrkConformalHit *chit = fConformalHitList->GetHit(ihit);
    legendre->FillZoomHisto(chit->GetU(), chit->GetV(), chit->GetIsochrone());
  }

  if(mode == 0 && alreadythere == true) {
    cout << "THIS PEAK IS ALREADY THERE" << endl;
    legendre->DeleteZoneAroundXYZoom(theta_max, r_max);
  }

  legendre->ExtractZoomMaximum(theta_max, r_max); //int maxpeakzoom = //FIXME [R.K. 01/2017] unused variable
  //  cout << "THETA/R ZOOM " << theta_max << " " << r_max <<  " maxpeakzoom " << maxpeakzoom << endl;

  if(fDisplayOn) {
    //char goOnChar; //[R.K. 01/2017] unused variable
    display->cd(3);
    TMarker *mrk = new TMarker(theta_max, r_max, 29);
    mrk->Draw("SAME");
    display->cd(4);
    legendre->DrawZoom();
    mrk->Draw("SAME");
    display->Update();
    display->Modified();
    //      cin >> goOnChar;
  }
  
  return maxpeak;
}

Int_t PndTrkTrackFinder::FillConformalHitList

(

PndTrkCluster *

cluster

)

Definition at line 5531 of file PndTrkTrackFinder.cxx.

References PndTrkConformalHitList::AddHit(), conform, fConformalHitList, fRefHit, PndTrkConformalTransform::GetConformalHit(), PndTrkConformalTransform::GetConformalSttHit(), PndTrkCluster::GetHit(), PndTrkConformalHitList::GetNofHits(), PndTrkCluster::GetNofHits(), hit(), PndTrkHit::IsSttParallel(), and PndTrkConformalHitList::SetConformalTransform().

Referenced by ClusterToConformal(), and Exec().

                                                                    { 
  
  // set the conformal transformation, where the
  // translation and rotation must be already set
  fConformalHitList->SetConformalTransform(conform);
    
  // loop over the cluster hits 
  // and port them to conf plane
  for(int jhit = 0; jhit < cluster->GetNofHits(); jhit++) {
    PndTrkHit *hit = cluster->GetHit(jhit);
    if(hit == fRefHit) continue;
    PndTrkConformalHit chit;
    // cout << "HIT " << hit->GetHitID() << " " << hit->IsSttParallel() << " " << hit->IsSttSkew() << endl;
    if(hit->IsSttParallel() == kTRUE) chit = conform->GetConformalSttHit(hit);
    else chit = conform->GetConformalHit(hit); // CHECK
    fConformalHitList->AddHit(&chit);  
    // cout << hit->GetPosition().X() << " " << hit->GetPosition().Y() << " " << hit->GetIsochrone() << " " << hit->IsSttParallel() << " " << " to CONFORMAL " << chit->GetU() << " " << chit->GetV() << " " << chit->GetIsochrone() << endl;

  }
  return fConformalHitList->GetNofHits();
}

void PndTrkTrackFinder::FillHitMap

(

)

Definition at line 5930 of file PndTrkTrackFinder.cxx.

References PndTrkNeighboringMap::AddNeighboringsToHit(), display, DrawLists(), DrawNeighborings(), fDisplayOn, fHitMap, fTubeArray, PndTrkHitList::GetHit(), PndTrkNeighboringMap::GetIndivisiblesToHit(), PndTrkHitList::GetNofHits(), PndTrkHit::GetTubeID(), hit(), PndSttTube::IsNeighboring(), PndSttTube::IsSectorLimit(), Refresh(), PndTrkNeighboringMap::SetOwnerValue(), and stthitlist.

Referenced by Exec().

                                   {
  TObjArray limits;
  TObjArray sector[6];
  TObjArray *neighborings = NULL;


  //  PndTrkHit *hit, hit2;
  // Loop over all hits and look for:
  // 1 - tubes limiting sectors                               std::vector< int > limithit
  // 2 - tubes with no neighborings (will not use them)       std::vector< int > standalone
  // 3 - tubes with only 1 neighboring (will serve as seed)   std::vector< int > seeds
  // 4 - tubes with only 2 neighborings, one of which is on   std::vector< int > candseeds
  //     the same layer and has neighboring (will be candidate 
  //     to serve as seed, if needed)
  // 5 - Fill the sector std::vector according to sectors     std::vector< int > sector*

  fHitMap->SetOwnerValue(kTRUE); // CHECK
  for(int ihit = 0; ihit < stthitlist->GetNofHits(); ihit++) {

    PndTrkHit  *hit = stthitlist->GetHit(ihit);
    int tubeID = hit->GetTubeID();
    PndSttTube *tube = (PndSttTube*) fTubeArray->At(tubeID);
    if(tube->IsSectorLimit() == kTRUE) limits.Add(hit);

    neighborings = new TObjArray();
   
    for(int jhit = 0; jhit < stthitlist->GetNofHits(); jhit++) {
      if(ihit == jhit) continue;
     
      PndTrkHit *hit2 = stthitlist->GetHit(jhit);
      int tubeID2 = hit2->GetTubeID();
     
      if(tube->IsNeighboring(tubeID2) == kTRUE) neighborings->Add(hit2);
     
    }
   
    //    cout << "HIT: " << hit->GetHitID() << "(tube: " << hit->GetTubeID() << ") has " << neighborings->GetEntriesFast() << " hits" << endl;
    //     if(fDisplayOn) { 
    //       Refresh();
    //     }
  

    fHitMap->AddNeighboringsToHit(hit, neighborings);
    TObjArray indiv = fHitMap->GetIndivisiblesToHit(hit);
    //    cout << "hit " << hit->GetHitID() << "(tube: " << hit->GetTubeID() << ") has " << indiv.GetEntriesFast() << endl;

    //     if(fDisplayOn) {
    //       char goOnChar;
    //       display->Update();
    //       display->Modified();
    //       cout << " go on?" << endl;
    //       cin >> goOnChar;
    //     }
  }
  //  neighborings = NULL;
  //   delete neighborings;

  if(fDisplayOn) {
    if(1 == 1)  DrawLists();
    if(1 == 2)  DrawNeighborings();
    // ================================================
    Refresh();
    char goOnChar;
    for(int ihit = 0; ihit < stthitlist->GetNofHits(); ihit++) {
      PndTrkHit *stthit = stthitlist->GetHit(ihit);
      TObjArray indiv = fHitMap->GetIndivisiblesToHit(stthit);
      for(int jhit = 0; jhit < indiv.GetEntriesFast(); jhit++) {
        //PndTrkHit *stthit2 = (PndTrkHit*) indiv.At(jhit); //[R.K. 01/2017] unused variable
        //      stthit2->Draw(kOrange);
        //      stthit->Draw(kOrange);
      }
    }

    display->Update();
    display->Modified();
    cout << " FILLHITMAP STARTING" << endl;
    cin >> goOnChar;
    display->Update();
    display->Modified();
    // ================================================
  }
  //     cout << "PRINT INDIVISIBILE MAP" << endl;
  //     fHitMap->PrintIndivisibleMap();
  
}

void PndTrkTrackFinder::FillLegendreHisto

(

PndTrkCluster *

cluster

)

Definition at line 5749 of file PndTrkTrackFinder.cxx.

References PndTrkCluster::DoesContain(), DrawConfHit(), fConformalHitList, fDisplayOn, PndTrkLegendreTransform::FillLegendreHisto(), PndTrkConformalHit::GetHit(), PndTrkConformalHitList::GetHit(), PndTrkConformalHit::GetIsochrone(), PndTrkConformalHitList::GetNofHits(), PndTrkConformalHit::GetU(), PndTrkConformalHit::GetV(), hit(), and legendre.

Referenced by Exec(), LegendreFit(), and RePrepareLegendre().

{
  // ---------------------------------------------------------------
  //  cout << "FILL LEGENDRE HISTO " << cluster->GetNofHits() << endl;

  for(int ihit = 0; ihit < fConformalHitList->GetNofHits(); ihit++) {
    PndTrkConformalHit *chit = fConformalHitList->GetHit(ihit);
    PndTrkHit *hit = chit->GetHit();
    if(cluster->DoesContain(hit) == kFALSE) continue;
    legendre->FillLegendreHisto(chit->GetU(), chit->GetV(), chit->GetIsochrone());
    if(fDisplayOn) {
      DrawConfHit(chit->GetU(), chit->GetV(), chit->GetIsochrone());
      //      cout << "conformal2: " << chit->GetU() << " " << chit->GetV() << " " << chit->GetIsochrone() << endl;   
    }
  }
}

PndTrkHit * PndTrkTrackFinder::FindMvdPixelReferenceHit

(

)

Definition at line 5588 of file PndTrkTrackFinder.cxx.

References fVerbose, PndTrkHitList::GetHit(), PndTrkHit::GetHitID(), PndTrkHitList::GetNofHits(), hit(), PndTrkHit::IsUsed(), and mvdpixhitlist.

Referenced by FindMvdReferenceHit().

{
  if(mvdpixhitlist->GetNofHits() == 0) return NULL;
  // loop on mvd pix hits
  int tmphitid = -1;
  PndTrkHit *refhit = NULL;
  for(int jhit = 0; jhit < mvdpixhitlist->GetNofHits(); jhit++) {
    PndTrkHit *hit = mvdpixhitlist->GetHit(jhit);
    if(hit->IsUsed()) { 
      if(fVerbose > 1) cout << "already used V" << endl; 
      continue; 
    }
    tmphitid = jhit;
    break;
  }   
  if(tmphitid == -1)  return NULL;
  refhit = mvdpixhitlist->GetHit(tmphitid);
  if(fVerbose > 1) cout << "MVD PIXEL REFERENCE HIT " << refhit->GetHitID() << endl;
  return refhit;
}

PndTrkHit * PndTrkTrackFinder::FindMvdReferenceHit

(

)

Definition at line 5630 of file PndTrkTrackFinder.cxx.

References FindMvdPixelReferenceHit(), and FindMvdStripReferenceHit().

Referenced by FindReferenceHit().

{
  PndTrkHit *refhit = NULL;
  refhit = FindMvdStripReferenceHit();
  // refhit = FindMvdPixelReferenceHit();
  if(refhit != NULL) return refhit;
  //  refhit = FindMvdStripReferenceHit();
  FindMvdPixelReferenceHit();
  return refhit;
}

PndTrkHit * PndTrkTrackFinder::FindMvdStripReferenceHit

(

)

Definition at line 5609 of file PndTrkTrackFinder.cxx.

References fVerbose, PndTrkHitList::GetHit(), PndTrkHit::GetHitID(), PndTrkHitList::GetNofHits(), hit(), PndTrkHit::IsUsed(), and mvdstrhitlist.

Referenced by FindMvdReferenceHit().

{
  if(mvdstrhitlist->GetNofHits() == 0) return NULL;
  // loop on mvd str hits
  int tmphitid = -1;
  PndTrkHit *refhit = NULL;
  for(int jhit = 0; jhit < mvdstrhitlist->GetNofHits(); jhit++) {
    PndTrkHit *hit = mvdstrhitlist->GetHit(jhit);
    if(hit->IsUsed()) { 
      if(fVerbose > 1) cout << "already used V" << endl; 
      continue; 
    }
    tmphitid = jhit;
    break;
  }   
  if(tmphitid == -1)  return NULL;
  refhit = mvdstrhitlist->GetHit(tmphitid);
  if(fVerbose > 1) cout << "MVD STRIP REFERENCE HIT " << refhit->GetHitID() << endl;
  return refhit;
}

PndTrkHit * PndTrkTrackFinder::FindReferenceHit

(

)

Definition at line 5641 of file PndTrkTrackFinder.cxx.

References FindMvdReferenceHit(), and FindSttReferenceHit().

Referenced by ClusterToConformal().

{
  PndTrkHit *refhit = NULL;
  // refhit = FindMvdReferenceHit();
  refhit = FindSttReferenceHit();
  if(refhit != NULL) return refhit;
  // refhit = FindSttReferenceHit();
  FindMvdReferenceHit();

  return refhit;
}

PndTrkHit * PndTrkTrackFinder::FindReferenceHit

(

PndTrkCluster *

cluster

)

Definition at line 5653 of file PndTrkTrackFinder.cxx.

References Double_t, fVerbose, PndTrkHit::GetDetectorID(), PndTrkCluster::GetHit(), PndTrkHit::GetHitID(), PndTrkHit::GetIsochrone(), PndTrkCluster::GetNofHits(), hit(), PndTrkHit::IsStt(), and PndTrkHit::IsSttParallel().

                                                                     {
  int ntot = cluster->GetNofHits();
  //  cout << "FIND REFERENCE HIT " << ntot << endl;
  
  if(ntot == 0) return NULL;


  int tmphitid = -1;
  Double_t tmpiso = 1.;
  PndTrkHit *refhit = NULL;
  for(int jhit = 0; jhit < ntot; jhit++) {
    PndTrkHit *hit = cluster->GetHit(jhit);
    
    //   if(hit->IsUsed()) { 
    //       if(fVerbose > 1) cout << "STT hit " << jhit << "already used " << endl; 
    //       continue; }
    
    if(hit->IsStt()) {
      if(hit->IsSttParallel()) {
        if(hit->GetIsochrone() < tmpiso) {
          tmphitid = jhit;
          tmpiso = hit->GetIsochrone();
          refhit = hit;
        }
      }
    }
    else {
      tmphitid = jhit;
      break;
    }
  }

  if(tmphitid == -1)  return NULL;
  refhit = cluster->GetHit(tmphitid);
  if(fVerbose > 1) cout << "REFERENCE HIT " << refhit->GetHitID() << " " << refhit->GetDetectorID() << endl;
  return refhit;


}

PndTrkHit * PndTrkTrackFinder::FindSttReferenceHit

(

int

isec = -1

)

Definition at line 5554 of file PndTrkTrackFinder.cxx.

References Double_t, fVerbose, PndTrkHitList::GetHit(), PndTrkSttHitList::GetHitFromSector(), PndTrkHit::GetIsochrone(), PndTrkHitList::GetNofHits(), PndTrkSttHitList::GetNofHitsInSector(), hit(), PndTrkHit::IsSttSkew(), PndTrkHit::IsUsed(), and stthitlist.

Referenced by FindReferenceHit().

                                                          {
  int ntot = 0; 
  if(isec == -1) ntot = stthitlist->GetNofHits();
  else  ntot = stthitlist->GetNofHitsInSector(isec);
  
  if(ntot == 0) return NULL;


  int tmphitid = -1;
  Double_t tmpiso = 1.;
  PndTrkHit *refhit = NULL;
  for(int jhit = 0; jhit < ntot; jhit++) {
    PndTrkHit *hit = NULL;
    if(isec == -1) hit = stthitlist->GetHit(jhit);
    else  hit = stthitlist->GetHitFromSector(jhit, isec);
    
    if(hit->IsUsed()) { 
      if(fVerbose > 1) cout << "STT hit " << jhit << "already used " << endl; 
      continue; }
    if(hit->IsSttSkew()) continue;
    if(hit->GetIsochrone() < tmpiso) {
      tmphitid = jhit;
      tmpiso = hit->GetIsochrone();
      refhit = hit;
    }
  }   
  if(tmphitid == -1)  return NULL;
  
  // PndTrkHit *refhit =  &thishitlist[tmphitid];
  if(fVerbose > 1) cout << "STT REFERENCE HIT " <<  tmphitid << " " << refhit->GetIsochrone() << endl;
  return refhit;

}

void PndTrkTrackFinder::FromConformalToRealTrack	(	double	fitm,
		double	fitp,
		double &	x0,
		double &	y0,
		double &	R
	)

Definition at line 5864 of file PndTrkTrackFinder.cxx.

References CAMath::Cos(), Double_t, fConformalHitList, PndTrkConformalHitList::GetConformalTransform(), PndTrkConformalTransform::GetRotation(), PndTrkConformalTransform::GetTranslation(), CAMath::Sin(), and sqrt().

Referenced by AnalyticalFit(), AnalyticalFit2(), Exec(), and LegendreFit().

                                                                                                            {
  // CHECK if this needs to be kept --> change xc0 to xc etc
  // center and radius

  //  cout << "conformal fit " << fitm << " " << fitp << endl;

  Double_t xcrot0, ycrot0;
  ycrot0 = 1 / (2 * fitp);
  xcrot0 = - fitm * ycrot0;
  R =  sqrt(xcrot0 * xcrot0 + ycrot0 * ycrot0);
  // re-rotation and re-traslation of xc and yc
  // rotation    
  x0 = TMath::Cos(fConformalHitList->GetConformalTransform()->GetRotation())*xcrot0 - TMath::Sin(fConformalHitList->GetConformalTransform()->GetRotation())*ycrot0;
  y0 = TMath::Sin(fConformalHitList->GetConformalTransform()->GetRotation())*xcrot0 + TMath::Cos(fConformalHitList->GetConformalTransform()->GetRotation())*ycrot0;
  // traslation 
  x0 += fConformalHitList->GetConformalTransform()->GetTranslation().X();
  y0 += fConformalHitList->GetConformalTransform()->GetTranslation().Y();
}

void PndTrkTrackFinder::FromConformalToRealTrackParabola	(	double	fita,
		double	fitb,
		double	fitc,
		double &	x0,
		double &	y0,
		double &	R,
		double &	epsilon
	)

Definition at line 5883 of file PndTrkTrackFinder.cxx.

References CAMath::Cos(), Double_t, fConformalHitList, PndTrkConformalHitList::GetConformalTransform(), PndTrkConformalTransform::GetRotation(), PndTrkConformalTransform::GetTranslation(), CAMath::Sin(), and sqrt().

Referenced by AnalyticalParabolaFit(), and Exec().

                                                                                                                                                  {
  // CHECK if this needs to be kept --> change xc0 to xc etc
  // center and radius

  //  cout << "conformal fit " << fita << " " << fitb << " " << fitc << endl;

  Double_t xcrot0, ycrot0;
  
  // center and radius
  ycrot0 = 1/(2 * fita);
  xcrot0 = -fitb/(2 * fita);
  epsilon = -fitc * pow((1+(fitb*fitb)), -3/2);
  R = epsilon + sqrt((xcrot0 * xcrot0)+(ycrot0 *ycrot0));

 // re-rotation and re-traslation of xc and yc
  // rotation    
  x0 = TMath::Cos(fConformalHitList->GetConformalTransform()->GetRotation())*xcrot0 - TMath::Sin(fConformalHitList->GetConformalTransform()->GetRotation())*ycrot0;
  y0 = TMath::Sin(fConformalHitList->GetConformalTransform()->GetRotation())*xcrot0 + TMath::Cos(fConformalHitList->GetConformalTransform()->GetRotation())*ycrot0;
  // traslation 
  x0 += fConformalHitList->GetConformalTransform()->GetTranslation().X();
  y0 += fConformalHitList->GetConformalTransform()->GetTranslation().Y();

}

void PndTrkTrackFinder::FromRealToConformalTrack	(	double	x0,
		double	y0,
		double	R,
		double &	fitm,
		double &	fitp
	)

|x| |c -s||xr| —> |xr| | c s||x| |y| |s c||yr| |yr| |-s c||y|

Definition at line 5907 of file PndTrkTrackFinder.cxx.

References CAMath::Cos(), Double_t, fConformalHitList, PndTrkConformalHitList::GetConformalTransform(), PndTrkConformalTransform::GetRotation(), PndTrkConformalTransform::GetTranslation(), and CAMath::Sin().

Referenced by CreateClusterAroundTrack().

                                                                                                          { // R //[R.K.03/2017] unused variable(s)
  // CHECK if this needs to be kept --> change xc0 to xc etc
  Double_t xcrot0, ycrot0;
 
  // traslation 
  x0 -= fConformalHitList->GetConformalTransform()->GetTranslation().X();
  y0 -= fConformalHitList->GetConformalTransform()->GetTranslation().Y();

  // rotation    
  xcrot0 = TMath::Cos(fConformalHitList->GetConformalTransform()->GetRotation())*x0 + TMath::Sin(fConformalHitList->GetConformalTransform()->GetRotation())*y0;
  ycrot0 = - TMath::Sin(fConformalHitList->GetConformalTransform()->GetRotation())*x0 + TMath::Cos(fConformalHitList->GetConformalTransform()->GetRotation())*y0;
  
  // yr = 1/ (2 p) --> p = 1 / (2 yr)
  // xr = - m / (2 p) --> m = - 2 p xr
  fitp = 1 / (2 * ycrot0);
  fitm = - 2 * fitp *  xcrot0;
}

InitStatus PndTrkTrackFinder::Init ( )

virtual

Virtual method Init

Definition at line 404 of file PndTrkTrackFinder.cxx.

References conform, display, fCluster, fCombiFinder, fConformalHitList, fDelPrim, fDisplayOn, fEventCounter, fFinalCluster, fFinalSkewCluster, fFitter, fGemBranch, fGemHitArray, fHitMap, PndSttMapCreator::FillTubeArray(), fIndivCluster, fIndivisibleHitList, fLineHisto, fMapper, fMvdPix_ConfDistLimit, fMvdPix_RealDistLimit, fMvdPixelBranch, fMvdPixelHitArray, fMvdStr_ConfDistLimit, fMvdStr_RealDistLimit, fMvdStripBranch, fMvdStripHitArray, fPersistence, fPrimaryTrackArray, fSciTBranch, fSciTHitArray, fSecondary, fSkewCluster, fStt_ConfDistLimit, fStt_RealDistLimit, fSttBranch, fSttHitArray, fSttParameters, fTimer, fTrackArray, fTrackCandArray, fTrackList, fTrkTrackArray, fTubeArray, fVerbose, gemhitlist, huv, hxy, hzphi, legendre, MVDPIXEL, mvdpixhitlist, mvdstrhitlist, MVDSTRIP, scithitlist, stthitlist, and tools.

                                   {
  
  fEventCounter = 0;

  fMvdPix_RealDistLimit = 0.5; // CHECK limits
  fMvdStr_RealDistLimit = 0.5; // CHECK limits
  fStt_RealDistLimit =  1.5 * 0.5; // CHECK limits
  fMvdPix_ConfDistLimit = 0.003; // CHECK limits
  fMvdStr_ConfDistLimit = 0.003; // CHECK limits
  fStt_ConfDistLimit =  0.001; // CHECK limits
  if(fSecondary) {
    fMvdPix_RealDistLimit = 1.; // CHECK limits
    fMvdStr_RealDistLimit = 1.; // CHECK limits
    fMvdPix_ConfDistLimit = 0.007; // CHECK limits
    fMvdStr_ConfDistLimit = 0.007; // CHECK limits
  }
   

  // Get RootManager
  FairRootManager* ioman = FairRootManager::Instance();
  if ( ! ioman ) {
    cout << "-E- PndTrkTrackFinder::Init: "
         << "RootManager not instantiated, return!" << endl;
    return kFATAL;
  }

  // -- HITS -------------------------------------------------
  //
  // STT
  fSttHitArray = (TClonesArray*) ioman->GetObject(fSttBranch);
  if ( ! fSttHitArray ) {
    cout << "-W- PndTrkTrackFinder::Init: "
         << "No STTHit array, return!" << endl;
    return kERROR;
  }
  //
  // MVD PIXEL
  fMvdPixelHitArray = (TClonesArray*) ioman->GetObject(fMvdPixelBranch);
  if ( !fMvdPixelHitArray){
    std::cout << "-W- PndTrkTrackFinder::Init: " << "No MVD Pixel hitArray, return!" << std::endl;
    return kERROR;
  }
  //
  // MVD STRIP
  fMvdStripHitArray = (TClonesArray*) ioman->GetObject(fMvdStripBranch);
  if ( !fMvdStripHitArray){
    std::cout << "-W- PndTrkTrackFinder::Init: " << "No MVD Strip hitArray, return!" << std::endl;
    return kERROR;
  }
  //
  // SciT 
  fSciTHitArray = (TClonesArray*) ioman->GetObject(fSciTBranch);
  if ( !fSciTHitArray){
    std::cout << "-W- PndTrkTrackFinder::Init: " << "No SciT hitArray, return!" << std::endl;
    return kERROR;
  }
  //
  // GEM
  fGemHitArray = (TClonesArray*) ioman->GetObject(fGemBranch);
  if ( !fGemHitArray){
    std::cout << "-W- PndTrkTrackFinder::Init: " << "No GEM hitArray, return!" << std::endl;
    return kERROR;
  }

  if(fDelPrim == kTRUE)  fPrimaryTrackArray =  (TClonesArray*) ioman->GetObject("SttMvdGemTrack");

  fTrackArray = new TClonesArray("PndTrack");
  fTrkTrackArray = new TClonesArray("PndTrkTrack");
  fTrackCandArray = new TClonesArray("PndTrackCand");
  ioman->Register("Track", "pr", fTrackArray, fPersistence); // CHECK
  ioman->Register("TrkTrack", "pr", fTrkTrackArray, fPersistence); // CHECK
  ioman->Register("TrackCand",  "pr", fTrackCandArray, fPersistence); // CHECK

  
  // ----------------------------------------   maps of STT tubes
  fMapper = new PndSttMapCreator(fSttParameters);
  fTubeArray = fMapper->FillTubeArray();
  // ----------------------------------------------------  end map
 
  if(fDisplayOn) {
    display = new TCanvas("display", "display", 0, 0, 800, 800); // CHECK
    display->Divide(2, 2);
  }

  legendre = new PndTrkLegendreTransform();

  conform = new PndTrkConformalTransform();

  tools = new PndTrkTools();
  fFitter = new PndTrkFitter(fVerbose);
  fHitMap = new PndTrkNeighboringMap(fTubeArray);
  fTimer = new TStopwatch();

  fCluster = new PndTrkCluster();
  fFinalCluster = new PndTrkCluster();
  fIndivCluster = new PndTrkCluster();
  fSkewCluster = new PndTrkCluster();
  fFinalSkewCluster = new PndTrkCluster();
  fTrackList = new PndTrkTrackList();
  fIndivisibleHitList = new PndTrkCluster(); 

  fConformalHitList = new PndTrkConformalHitList();

  // fLineHisto = new TH2F("fLineHisto", "hl", 720, -360, 360, 8000, -400, 400);
  fLineHisto = new TH2F("fLineHisto", "hl", 360, -360, 360, 500, -400, 400);

  stthitlist = new PndTrkSttHitList(fTubeArray);
  mvdpixhitlist = new PndTrkSdsHitList(MVDPIXEL);
  mvdstrhitlist = new PndTrkSdsHitList(MVDSTRIP);
  scithitlist = new PndTrkSciTHitList();
  gemhitlist = new PndTrkGemHitList();

  hxy = NULL;
  huv = NULL;
  hzphi = NULL;

  fCombiFinder = new PndTrkGemCombinatorial(fGemHitArray, fVerbose);

  return kSUCCESS;

}

void PndTrkTrackFinder::Initialize

(

)

Definition at line 536 of file PndTrkTrackFinder.cxx.

References PndTrkGemHitList::AddNonCombiHits(), PndTrkHitList::AddTCA(), PndTrkConformalHitList::Clear(), PndTrkGemCombinatorial::CombinatorialSuppression(), fCombiFinder, fConformalHitList, fDelPrim, fFoundPeaks, fGemBranch, fGemHitArray, fInitDone, fMvdPixelBranch, fMvdPixelHitArray, fMvdStripBranch, fMvdStripHitArray, fNofPrimaries, fSciTBranch, fSciTHitArray, fSttBranch, fSttHitArray, fUseGEM, fUseMVDPix, fUseMVDStr, fUseSCIT, fUseSTT, gemhitlist, PndTrkHitList::GetHitByID(), hit(), PndTrkSciTHitList::Instanciate(), PndTrkSttHitList::Instanciate(), PndTrkGemHitList::Instanciate(), PndTrkSdsHitList::InstanciatePixel(), PndTrkSdsHitList::InstanciateStrip(), mvdpixhitlist, mvdstrhitlist, PrimaryCheck(), RecreateHitArrays(), PndTrkHitList::RemoveHit(), scithitlist, and stthitlist.

Referenced by Exec().

                                   {
  
//   stthitlist = new PndTrkSttHitList(fTubeArray);
//   mvdpixhitlist = new PndTrkSdsHitList(MVDPIXEL);
//   mvdstrhitlist = new PndTrkSdsHitList(MVDSTRIP);
//   scithitlist = new PndTrkSciTHitList();
//   gemhitlist = new PndTrkGemHitList();

//   stthitlist->Clear();
//   mvdpixhitlist->Clear();
//   mvdstrhitlist->Clear();
//  gemhitlist->Clear();
//   scithitlist->Clear();

  std::map< int, std::vector< int > > det_to_hitids;
  if(fDelPrim) {
    fNofPrimaries = RecreateHitArrays(det_to_hitids);
    cout << fNofPrimaries << " --->" << det_to_hitids.size() << endl; 
  }

  if(fUseSTT) { 
    stthitlist->AddTCA(FairRootManager::Instance()->GetBranchId(fSttBranch), fSttHitArray);
    std::map< int, bool > primaries = PrimaryCheck(FairRootManager::Instance()->GetBranchId(fSttBranch), det_to_hitids);
    for(size_t ihit = 0; ihit < primaries.size(); ihit++) {
      if(primaries[ihit] == true) continue;
      PndTrkHit *hit = stthitlist->GetHitByID(ihit);
      stthitlist->RemoveHit(hit);
    }
    stthitlist->Instanciate();
  }

  if(fUseMVDPix) {
    mvdpixhitlist->AddTCA(FairRootManager::Instance()->GetBranchId(fMvdPixelBranch), fMvdPixelHitArray);
    std::map< int, bool > primaries = PrimaryCheck(FairRootManager::Instance()->GetBranchId(fMvdPixelBranch), det_to_hitids);
    for(size_t ihit = 0; ihit < primaries.size(); ihit++) {
      if(primaries[ihit] == true) continue;
      PndTrkHit *hit = mvdpixhitlist->GetHitByID(ihit);
      mvdpixhitlist->RemoveHit(hit);
    }
    mvdpixhitlist->InstanciatePixel();
  }

  if(fUseMVDStr) {
    mvdstrhitlist->AddTCA(FairRootManager::Instance()->GetBranchId(fMvdStripBranch), fMvdStripHitArray);
    std::map< int, bool > primaries = PrimaryCheck(FairRootManager::Instance()->GetBranchId(fMvdStripBranch), det_to_hitids);
    for(size_t ihit = 0; ihit < primaries.size(); ihit++) {
      if(primaries[ihit] == true) continue;
      PndTrkHit *hit = mvdstrhitlist->GetHitByID(ihit);
      mvdstrhitlist->RemoveHit(hit);
    }
    mvdstrhitlist->InstanciateStrip();
  }

  if(fUseSCIT) {
    scithitlist->AddTCA(FairRootManager::Instance()->GetBranchId(fSciTBranch), fSciTHitArray);
//     std::map< int, bool > primaries = PrimaryCheck(FairRootManager::Instance()->GetBranchId(fSciTBranch), det_to_hitids);
//     for(int ihit = 0; ihit < primaries.size(); ihit++) {
//       if(primaries[ihit] == true) continue;
//       PndTrkHit *hit = scithitlist->GetHitByID(ihit);
//       scithitlist->RemoveHit(hit);
//     }
    scithitlist->Instanciate();
  }

  if(fUseGEM) {
    // gemhitlist->AddTCA(FairRootManager::Instance()->GetBranchId(fGemBranch), fGemHitArray);
    std::map< int, bool > hitidTousability = fCombiFinder->CombinatorialSuppression();
    gemhitlist->AddNonCombiHits(FairRootManager::Instance()->GetBranchId(fGemBranch), fGemHitArray, hitidTousability);
   
    std::map< int, bool > primaries = PrimaryCheck(FairRootManager::Instance()->GetBranchId(fGemBranch), det_to_hitids);
    for(size_t ihit = 0; ihit < primaries.size(); ihit++) {
      if(primaries[ihit] == true) continue;
      PndTrkHit *hit = gemhitlist->GetHitByID(ihit);
      if(hit) gemhitlist->RemoveHit(hit);
    }
    gemhitlist->Instanciate();
  }

  fConformalHitList->Clear();
  fFoundPeaks.clear();

  fInitDone = kTRUE;
  //  stthitlist->PrintSectors();

  //   cout << "number of stt    hits " << stthitlist->GetNofHits() << endl;
  //   cout << "number of mvdpix hits " << mvdpixhitlist->GetNofHits()  << endl;
  //   cout << "number of mvdstr hits " << mvdstrhitlist->GetNofHits()  << endl;
  //   cout << "number of scit   hits " << scithitlist->GetNofHits()  << endl;
  //   cout << "number of gem    hits " << gemhitlist->GetNofHits()  << endl;
  
}

void PndTrkTrackFinder::IntersectionFinder	(	PndTrkHit *	hit,
		double	xc,
		double	yc,
		double	R
	)

Definition at line 6936 of file PndTrkTrackFinder.cxx.

References Double_t, fabs(), fTubeArray, PndTrkHit::GetIsochrone(), PndSttTube::GetPosition(), PndTrkHit::GetTubeID(), m, point, R, PndTrkHit::SetPosition(), sqrt(), and vec.

Referenced by AnalyticalFit(), AnalyticalFit2(), and AnalyticalParabolaFit().

                                                                                         {

  TVector2 vec(xc, yc);
  
  // tubeID  CHECK added
  Int_t tubeID = hit->GetTubeID();
  PndSttTube *tube = (PndSttTube*) fTubeArray->At(tubeID);

  // [xp, yp] point = coordinates xy of the centre of the firing tube
  TVector2 point(tube->GetPosition().X(), tube->GetPosition().Y());
  double radius = hit->GetIsochrone();

  // the coordinates of the point are taken from the intersection
  // between the circumference from the drift time and the R radius of
  // curvature. -------------------------------------------------------
  // 2. find the intersection between the little circle and the line // R
  // 2.a
  // find the line passing throught [xc, yc] (centre of curvature) and [xp, yp] (first wire)
  // y = mx + q
  Double_t m = (point.Y() - vec.Y())/(point.X() - vec.X());
  Double_t q = point.Y() - m*point.X();

  Double_t x1 = 0, y1 = 0,
    x2 = 0, y2 = 0,
    xb1 = 0, yb1 = 0,
    xb2 = 0, yb2 = 0;

  // CHECK the vertical track
  if(fabs(point.X() - vec.X()) < 1e-6) {
      
    // 2.b
    // intersection little circle and line --> [x1, y1]
    // + and - refer to the 2 possible intersections
    // +
    x1 = point.X();
    y1 = point.Y() + sqrt(radius * radius - (x1 - point.X()) * (x1 - point.X()));
    // - 
    x2 = x1;
    y2 = point.Y() - sqrt(radius * radius - (x2 - point.X()) * (x2 - point.X()));
      
    // 2.c intersection between line and circle
    // +
    xb1 = vec.X();
    yb1 = vec.Y() + sqrt(R * R - (xb1 - vec.X()) * (xb1 - vec.X()));
    // -
    xb2 = xb1;
    yb2 = vec.Y() - sqrt(R * R - (xb2 - vec.X()) * (xb2 - vec.X()));

  }    // END CHECK
  else {
      
    // 2.b
    // intersection little circle and line --> [x1, y1]
    // + and - refer to the 2 possible intersections
    // +
    x1 = (-(m*(q - point.Y()) - point.X()) + sqrt((m*(q - point.Y()) - point.X())*(m*(q - point.Y()) - point.X()) - (m*m + 1)*((q - point.Y())*(q - point.Y()) + point.X()*point.X() - radius*radius))) / (m*m + 1);
    y1 = m*x1 + q;
    // - 
    x2 = (-(m*(q - point.Y()) - point.X()) - sqrt((m*(q - point.Y()) - point.X())*(m*(q - point.Y()) - point.X()) - (m*m + 1)*((q - point.Y())*(q - point.Y()) + point.X()*point.X() - radius*radius))) / (m*m + 1);
    y2 = m*x2 + q;
      
    // 2.c intersection between line and circle
    // +
    xb1 = (-(m*(q - vec.Y()) - vec.X()) + sqrt((m*(q - vec.Y()) - vec.X())*(m*(q - vec.Y()) - vec.X()) - (m*m + 1)*((q - vec.Y())*(q - vec.Y()) + vec.X()*vec.X() - R * R))) / (m*m + 1);
    yb1 = m*xb1 + q;
    // -
    xb2 = (-(m*(q - vec.Y()) - vec.X()) - sqrt((m*(q - vec.Y()) - vec.X())*(m*(q - vec.Y()) - vec.X()) - (m*m + 1)*((q - vec.Y())*(q - vec.Y()) + vec.X()*vec.X() - R * R))) / (m*m + 1);
    yb2 = m*xb2 + q;
  }
    
  // calculation of the distance between [xb, yb] and [xp, yp]
  Double_t distb1 = sqrt((yb1 - point.Y())*(yb1 - point.Y()) + (xb1 - point.X())*(xb1 - point.X()));
  Double_t distb2 = sqrt((yb2 - point.Y())*(yb2 - point.Y()) + (xb2 - point.X())*(xb2 - point.X()));
    
  // choice of [xb, yb]
  TVector2 xyb;
  if(distb1 > distb2) xyb.Set(xb2, yb2); 
  else xyb.Set(xb1, yb1); 

  // calculation of the distance between [x, y] and [xb. yb]
  Double_t dist1 = sqrt((xyb.Y() - y1)*(xyb.Y() - y1) + (xyb.X() - x1)*(xyb.X() - x1));
  Double_t dist2 = sqrt((xyb.Y() - y2)*(xyb.Y() - y2) + (xyb.X() - x2)*(xyb.X() - x2));

  // choice of [x, y]
  TVector2 *xy;
  if(dist1 > dist2) xy = new TVector2(x2, y2);
  else xy = new TVector2(x1, y1);   // <========= THIS IS THE NEW POINT to be used for the fit
    
  hit->SetPosition(TVector3(xy->X(), xy->Y(), 0.0));
    
  delete xy;
}

void PndTrkTrackFinder::IntersectionFinder	(	PndTrkConformalHit *	chit,
		double	fitm,
		double	fitp
	)

Definition at line 6920 of file PndTrkTrackFinder.cxx.

References fabs(), PndTrkConformalHit::GetIsochrone(), PndTrkConformalHit::GetU(), PndTrkConformalHit::GetV(), PndTrkConformalHit::SetPosition(), and CAMath::Sqrt().

                                                                                             {
  
  double xi1 = chit->GetU() + fitm * chit->GetIsochrone()/ TMath::Sqrt(fitm * fitm + 1);
  double yi1 = chit->GetV() - chit->GetIsochrone() / TMath::Sqrt(fitm * fitm + 1);
  
  double xi2 = chit->GetU() - fitm * chit->GetIsochrone() / TMath::Sqrt(fitm * fitm + 1);
  double yi2 = chit->GetV() + chit->GetIsochrone()/ TMath::Sqrt(fitm * fitm + 1);
  
  double xi = 0, yi = 0;
  
  fabs(yi1 - (fitm * xi1 + fitp)) < fabs(yi2 - (fitm * xi2 + fitp)) ? (yi = yi1, xi = xi1) : (yi = yi2, xi = xi2);
  
  chit->SetPosition(xi, yi);

}

PndTrkTrack * PndTrkTrackFinder::LegendreFit

(

PndTrkCluster *

cluster

)

Definition at line 6502 of file PndTrkTrackFinder.cxx.

References display, Double_t, DrawGeometryConf(), ExtractLegendre(), PndTrkLegendreTransform::ExtractLegendreSingleLineParameters(), fDisplayOn, FillLegendreHisto(), FromConformalToRealTrack(), fUmax, fUmin, fVmax, fVmin, legendre, R, RefreshConf(), PndTrkLegendreTransform::ResetLegendreHisto(), and track.

                                                                   {

  //  cout << "APPLY LEGENDRE =======================" << endl;
  //  cout << "nof hits " << cluster->GetNofHits() << endl;

  // reset the legendre histo for a new legendre fit
  legendre->ResetLegendreHisto();
  
  if(fDisplayOn) {
    RefreshConf();
    DrawGeometryConf(fUmin, fUmax, fVmin, fVmax);
  }
  
  // fill legendre histo with the cluster hits
  FillLegendreHisto(cluster); 
  double theta_max, r_max;
  // get the peak
  int maxpeak = ExtractLegendre(1, theta_max, r_max); // CHECK mode??
          
  if(maxpeak < 4) return NULL; // CHECK
  // from theta/r to line parameters in CONFORMAL plane 
  double fitm, fitq;
  legendre->ExtractLegendreSingleLineParameters(fitm, fitq);
  if(fDisplayOn) {
    display->cd(2);
    TLine *line = new TLine(-10.07, fitq + fitm * (-10.07), 10.07, fitq + fitm * (10.07));
    line->Draw("SAME");
  }
    
  // from line parameters to center/radius in REAL plane
  Double_t xc, yc, R;
  FromConformalToRealTrack(fitm, fitq, xc, yc, R);
  //  cout << "\033[1;33m MAXPEAK " << maxpeak << " XR, YC, R: " << xc << " " << yc << " " << R << "\033[0m" << endl;
  //    cout << "start hit " << ihit << " " << hit->GetHitID() << " " << endsecid << " " << endlayid << endl;

  // create a track from the cluster
  PndTrkTrack *track = new PndTrkTrack(cluster, xc, yc, R);

  return track;
}

void PndTrkTrackFinder::LightCluster

(

PndTrkCluster *

cluster

)

Bool_t PndTrkTrackFinder::MinuitFit	(	PndTrkCluster *	cluster,
		double	mstart,
		double	qstart,
		double &	fitm,
		double &	fitq
	)

Definition at line 107 of file PndTrkTrackFinder.cxx.

References Chi2Calculation(), counter, Double_t, PndTrkCluster::GetHit(), PndTrkConformalHit::GetIsochrone(), PndTrkCluster::GetNofHits(), PndTrkConformalHit::GetPosition(), PndTrkHit::GetPosition(), hit(), PndTrkHit::IsSttParallel(), PndTrkHit::IsSttSkew(), and sigma.

Referenced by Exec().

                                                                                                                   {
  
  if(fDisplayOn) {
    display->cd(1);
    Refresh();
  }
  
  TMinuit minimizer;
  minimizer.SetPrintLevel(-1);
  
  // set the object to be fitted: ................
  // TMatrixT<Double_t> [x][y][r][err_r]
  TMatrixT<Double_t> fitvect;
  
  int nofhits = 0;
  for(int ihit = 0; ihit < cluster->GetNofHits(); ihit++) 
    {
        PndTrkHit *hit = cluster->GetHit(ihit);
        if(hit == fRefHit) continue;
        if(hit->IsSttSkew()) continue;
        nofhits++;
    }
  fitvect.ResizeTo(nofhits, 4); // x y r errr
  
  int counter = 0;
  for(int ihit = 0; ihit < cluster->GetNofHits(); ihit++) 
    {
      PndTrkHit *hit = cluster->GetHit(ihit);
      if(hit == fRefHit) continue;
      if(hit->IsSttSkew()) continue;
      
      PndTrkConformalHit chit = conform->GetConformalHit(hit);
      PndTrkConformalHit chitstt = conform->GetConformalSttHit(hit);
      double sigma = 1e-5;
      if(hit->IsSttParallel()) {
        sigma = chitstt.GetIsochrone(); // 0.1; // CHECK
      
        fitvect[counter][0] = chitstt.GetPosition().X();
        fitvect[counter][1] = chitstt.GetPosition().Y();
        fitvect[counter][2] = chitstt.GetIsochrone();
        fitvect[counter][3] = sigma;
      }
      else {
        fitvect[counter][0] = chit.GetPosition().X();
        fitvect[counter][1] = chit.GetPosition().Y();
        fitvect[counter][2] = 0.;
        fitvect[counter][3] = sigma;
      }
      counter++;
      
      if(fDisplayOn) {
        display->cd(1);
        TMarker *mrk = new TMarker(hit->GetPosition().X(), hit->GetPosition().Y(), 6);
        mrk->SetMarkerColor(kRed);
        mrk->Draw("SAME");
        
        display->cd(2);
        TMarker *mrk2 = new TMarker(chit.GetPosition().X(), chit.GetPosition().Y(), 6);
        mrk2->SetMarkerColor(kRed);
        mrk2->Draw("SAME");
        
        
        display->Update();
        display->Modified();
      } 
    }
  if(nofhits != counter) fitvect.ResizeTo(counter, 4); // x y r errr
  //.....................
  
  minimizer.SetFCN(Chi2Calculation);
  //  minimizer.SetErrorDef(1);  // ???
  
  minimizer.DefineParameter(0, "m", mstart, 0.1, -3000., 3000.); // ???
  minimizer.DefineParameter(1, "q", qstart, 0.1, -3000., 3000.); // ??? LIMITS ???
  
  minimizer.SetObjectFit(&fitvect);
  minimizer.SetPrintLevel(); 
  
  minimizer.SetMaxIterations(500);
  minimizer.Migrad();
  
  Double_t results[3], errors[3]; //chisquare,  //[R.K. 01/2017] unused variable
  minimizer.GetParameter(0, results[0], errors[0]);
  minimizer.GetParameter(1, results[1], errors[1]);
  
  cout << "fitm: " << results[0] << endl; 
  cout << "fitq: " << results[1] << endl; 
   
  
  if(fitm == 0) return kFALSE;

  fitm = results[0];
  fitq = results[1];
  
  //     //  cout << "previous " << xc << " " << yc << " " << R << endl;
//     FromConformalToRealTrack(fitm, fitq, xc, yc, R);
//     // cout << "now " << xc << " " << yc << " " << R << endl;
    
//     if(fDisplayOn) {
//       display->cd(2);
//       cout << "wanna see the line?" << endl;
//       TLine *line = new TLine(-10.07, fitq + fitm * (-10.07), 10.07, fitq + fitm * (10.07));
//       line->SetLineColor(2);
//       line->Draw("SAME");
//       char goOnChar;
//       display->Update();
//       display->Modified();
//       cin >> goOnChar;
//     }
    
    return kTRUE;
}

Bool_t PndTrkTrackFinder::MinuitFit2	(	PndTrkCluster *	cluster,
		double	xstart,
		double	ystart,
		double	rstart,
		double &	xc,
		double &	yc,
		double &	R,
		double &	sign
	)

Definition at line 220 of file PndTrkTrackFinder.cxx.

References Chi2Calculation2(), counter, Double_t, PndTrkCluster::GetHit(), PndTrkHit::GetIsochrone(), PndTrkCluster::GetNofHits(), PndTrkHit::GetPosition(), hit(), PndTrkHit::IsSttParallel(), PndTrkHit::IsSttSkew(), and sigma.

                                                                                                                                                        {
  
  if(fDisplayOn) {
    display->cd(1);
    Refresh();
  }
  
  TMinuit minimizer;
  minimizer.SetPrintLevel(-1);
  
  // set the object to be fitted: ................
  // TMatrixT<Double_t> [x][y][r][err_r]
  TMatrixT<Double_t> fitvect;
  
  int nofhits = 0;
  for(int ihit = 0; ihit < cluster->GetNofHits(); ihit++) 
    {
        PndTrkHit *hit = cluster->GetHit(ihit);
        if(hit == fRefHit) continue;
        if(hit->IsSttSkew()) continue;
        nofhits++;
    }
  fitvect.ResizeTo(nofhits, 4); // x y r errr
  
  int counter = 0;
  for(int ihit = 0; ihit < cluster->GetNofHits(); ihit++) 
    {
      PndTrkHit *hit = cluster->GetHit(ihit);
      if(hit == fRefHit) continue;
      if(hit->IsSttSkew()) continue;
      
      double sigma = 1e-5;
      if(hit->IsSttParallel()) {
        sigma = hit->GetIsochrone(); // 0.1; // CHECK
      
        fitvect[counter][0] = hit->GetPosition().X();
        fitvect[counter][1] = hit->GetPosition().Y();
        fitvect[counter][2] = hit->GetIsochrone();
        fitvect[counter][3] = sigma;
      }
      else {
        fitvect[counter][0] = hit->GetPosition().X();
        fitvect[counter][1] = hit->GetPosition().Y();
        fitvect[counter][2] = 0.;
        fitvect[counter][3] = sigma;
      }
      counter++;
      
      if(fDisplayOn) {
        display->cd(1);
        TMarker *mrk = new TMarker(hit->GetPosition().X(), hit->GetPosition().Y(), 6);
        mrk->SetMarkerColor(kRed);
        mrk->Draw("SAME");
        
        display->Update();
        display->Modified();
      } 
    }
  if(nofhits != counter) fitvect.ResizeTo(counter, 4); // x y r errr
  //.....................
  
  minimizer.SetFCN(Chi2Calculation2);
  //  minimizer.SetErrorDef(1);  // ???
  
  minimizer.DefineParameter(0, "x", xstart, 0.1, -3000., 3000.); // ???
  minimizer.DefineParameter(1, "y", ystart, 0.1, -3000., 3000.); // ??? LIMITS ???
  minimizer.DefineParameter(2, "R", rstart, 0.1, 0., 3000.); // ??? LIMITS ???
  minimizer.DefineParameter(3, "sign", 0, 1, -1, 1); // ??? LIMITS ???

  minimizer.SetObjectFit(&fitvect);
  minimizer.SetPrintLevel(); 
  
  minimizer.SetMaxIterations(500);
  minimizer.Migrad();
  
  Double_t results[4], errors[4]; //chisquare,  //[R.K. 01/2017] unused variable
  minimizer.GetParameter(0, results[0], errors[0]);
  minimizer.GetParameter(1, results[1], errors[1]);
  minimizer.GetParameter(2, results[2], errors[2]);
  minimizer.GetParameter(3, results[3], errors[3]);
  
  cout << "xc: " << results[0] << endl; 
  cout << "yc: " << results[1] << endl; 
  cout << "R: "  << results[2] << endl; 
  cout << "sign: " << results[3] << endl; 
  
  
  //  if( == 0) return kFALSE;

  xc = results[0];
  yc = results[1];
  R = results[2];
  sign = results[3];
  
  //     //  cout << "previous " << xc << " " << yc << " " << R << endl;
//     FromConformalToRealTrack(fitm, fitq, xc, yc, R);
//     // cout << "now " << xc << " " << yc << " " << R << endl;
    
//     if(fDisplayOn) {
//       display->cd(2);
//       cout << "wanna see the line?" << endl;
//       TLine *line = new TLine(-10.07, fitq + fitm * (-10.07), 10.07, fitq + fitm * (10.07));
//       line->SetLineColor(2);
//       line->Draw("SAME");
//       char goOnChar;
//       display->Update();
//       display->Modified();
//       cin >> goOnChar;
//     }
    
    return kTRUE;
}

std::map< int, bool > PndTrkTrackFinder::PrimaryCheck	(	Int_t	detid,
		std::map< int, std::vector< int > > &	det_to_hitids
	)

Definition at line 7465 of file PndTrkTrackFinder.cxx.

References fGemBranch, fGemHitArray, fMvdPixelBranch, fMvdPixelHitArray, fMvdStripBranch, fMvdStripHitArray, fSttBranch, fSttHitArray, and hits.

Referenced by Initialize().

{
  std::map< int, bool > hitidTousability;
  std::vector< int > hits = det_to_hitids[detid];
  
  TClonesArray *array = NULL;
  if(detid == FairRootManager::Instance()->GetBranchId(fSttBranch)) array = fSttHitArray;
  else if(detid == FairRootManager::Instance()->GetBranchId(fMvdPixelBranch)) array = fMvdPixelHitArray;
  else if(detid == FairRootManager::Instance()->GetBranchId(fMvdStripBranch)) array = fMvdStripHitArray;
  else if(detid == FairRootManager::Instance()->GetBranchId(fGemBranch)) array = fGemHitArray;

  for(int ihit = 0; ihit < array->GetEntriesFast(); ihit++) {
    hitidTousability[ihit] = true;
    if(find(hits.begin(), hits.end(), ihit) != hits.end()) hitidTousability[ihit] = false;
  }
  return hitidTousability;
}

Int_t PndTrkTrackFinder::RecreateHitArrays

(

std::map< int, std::vector< int > > &

det_to_hitids

)

cout << "WRONG CANDIDATES MAP " << det_to_hitids.size() << endl; std::map< int, std::vector< int > >::iterator it = det_to_hitids.begin(); while(it != det_to_hitids.end()) { int detid = (*it).first; std::vector< int > hits = (*it).second; cout << "DET " << detid << " has " << hits.size() << " hits: "; for(int ihit = 0; ihit < hits.size(); ihit++) cout << " " << hits[ihit]; cout << endl; it++; }

Definition at line 7412 of file PndTrkTrackFinder.cxx.

References counter, fPrimaryTrackArray, fTrackArray, fTrackCandArray, PndTrackCandHit::GetDetId(), PndTrackCandHit::GetHitId(), PndTrackCand::GetNHits(), PndTrack::GetParamFirst(), PndTrack::GetParamLast(), PndTrackCand::GetSortedHit(), PndTrack::GetTrackCand(), PndTrack::GetTrackCandPtr(), and PndTrack::SetFlag().

Referenced by Initialize().

                                                                                          {
  
  int counter = 0;
  //  std::map< int, std::vector< int > > det_to_hitids;
  for(int itrk = 0; itrk < fPrimaryTrackArray->GetEntriesFast(); itrk++) {
    PndTrack *pritrack = (PndTrack*) fPrimaryTrackArray->At(itrk);

//     if(pritrack->GetParamFirst().GetPosition().Perp() > 5) continue;
//     if(pritrack->GetParamFirst().GetPosition().Z() > 5) continue;
// //     if(pritrack->GetParamFirst().GetMomentum().Theta() * TMath::RadToDeg() < 10) continue;


    PndTrackCand *pricand = pritrack->GetTrackCandPtr();
    for (size_t ihit = 0; ihit < pricand->GetNHits(); ihit++) {
      PndTrackCandHit candhit = pricand->GetSortedHit(ihit);
      Int_t hitId = candhit.GetHitId();
      Int_t detId = candhit.GetDetId();

      std::vector< int > hitids = det_to_hitids[detId];
      if(std::find(hitids.begin(), hitids.end(), hitId) == hitids.end()) hitids.push_back(hitId);
      det_to_hitids[detId] = hitids;
   }


    // copy the track
    TClonesArray& clref1 = *fTrackArray;
    Int_t size = clref1.GetEntriesFast();
    PndTrack *outputtrack = new(clref1[size]) PndTrack(pritrack->GetParamFirst(), pritrack->GetParamLast(), pritrack->GetTrackCand());
    outputtrack->SetFlag(333);

    TClonesArray& clref2 = *fTrackCandArray;
    size = clref2.GetEntriesFast();
    new(clref2[size]) PndTrackCand(pritrack->GetTrackCand()); //PndTrackCand *outputtrackcand =  //[R.K.03/2017] unused variable
    counter++;
  }
  
  return counter;
}

void PndTrkTrackFinder::Refresh

(

)

Definition at line 5325 of file PndTrkTrackFinder.cxx.

References DrawGeometry(), DrawHits(), fVerbose, gemhitlist, mvdpixhitlist, mvdstrhitlist, scithitlist, and stthitlist.

Referenced by AnalyticalFit(), AnalyticalFit2(), AnalyticalParabolaFit(), DrawNeighboringsToHit(), Exec(), and FillHitMap().

                               {
  // CHECK
  //char goOnChar; //[R.K. 01/2017] unused variable
  //  cout << "Refresh?" << endl;
  //  cin >> goOnChar;
  //  cout << "REFRESHING" << endl;
  DrawGeometry();
  if(fVerbose)  cout << "Refresh stt" << endl;
  DrawHits(stthitlist);
  if(fVerbose)  cout << "Refresh pixel" << endl;
  DrawHits(mvdpixhitlist);
  if(fVerbose)  cout << "Refresh strip" << endl;
  DrawHits(mvdstrhitlist);
  if(fVerbose)  cout << "Refresh scit" << endl;
  DrawHits(scithitlist);
  if(fVerbose)  cout << "Refresh gem" << endl;
  DrawHits(gemhitlist);
  if(fVerbose)  cout << "Refresh stop" << endl;

}

void PndTrkTrackFinder::RefreshConf

(

)

Definition at line 5353 of file PndTrkTrackFinder.cxx.

Referenced by Exec(), LegendreFit(), and RePrepareLegendre().

                                    { // CHECK delete
  // CHECK
  //char goOnChar;
  //  cout << "RefreshConf?" << endl;
  //  cin >> goOnChar;
  //  cout << "REFRESHING CONF" << endl;
}

void PndTrkTrackFinder::RePrepareLegendre

(

PndTrkCluster *

cluster

)

Definition at line 5766 of file PndTrkTrackFinder.cxx.

References DrawGeometryConf(), fDisplayOn, FillLegendreHisto(), fUmax, fUmin, fVmax, fVmin, legendre, RefreshConf(), and PndTrkLegendreTransform::ResetLegendreHisto().

Referenced by ApplyLegendre().

                                                                {

  //    cout << "RESETTING LEGENDRE HISTO" << endl;
  legendre->ResetLegendreHisto();
 
  if(fDisplayOn) {
    RefreshConf();
    DrawGeometryConf(fUmin, fUmax, fVmin, fVmax);
  }
  // cout << "%%%%%%%%%%%%%%%%%%%% XY FINDE %%%%%%%%%%%%%%%%%%%%%%%%%%" << endl;
  FillLegendreHisto(cluster);
}

void PndTrkTrackFinder::Reset

(

)

Definition at line 5030 of file PndTrkTrackFinder.cxx.

References PndTrkSciTHitList::Clear(), PndTrkGemHitList::Clear(), PndTrkSdsHitList::Clear(), PndTrkSttHitList::Clear(), PndTrkCluster::Clear(), display, fDisplayOn, fEventCounter, fIndivisibleHitList, fInitDone, fTime, fTimer, fVerbose, gemhitlist, mvdpixhitlist, mvdstrhitlist, scithitlist, and stthitlist.

Referenced by Exec().

{
  
  if(fDisplayOn) {
    char goOnChar;
    display->Update();
    display->Modified();
    cout << "Finish? ";
    cin >> goOnChar;
    cout << "FINISH" << endl;
  }
  
  if(fInitDone) {
    stthitlist->Clear();
    mvdpixhitlist->Clear();
    mvdstrhitlist->Clear();
    gemhitlist->Clear();
    scithitlist->Clear();

    //   if(stthitlist)    delete stthitlist;
    //     if(mvdpixhitlist) delete mvdpixhitlist; 
    //     if(mvdstrhitlist) delete mvdstrhitlist;
    //     if(scithitlist)   delete scithitlist;
    //     if(gemhitlist)    delete gemhitlist;
    
    if(fTimer) {
      fTimer->Stop();
      fTime += fTimer->RealTime();
      
      if(fVerbose > 0) cerr << fEventCounter << " Real time " << fTime << " s" << endl;
    }
  }

  fIndivisibleHitList->Clear();
  fInitDone = kFALSE;
}

void PndTrkTrackFinder::SearchSecondaryTracks ( )

inline

Definition at line 105 of file PndTrkTrackFinder.h.

References fSecondary.

Referenced by reco_complete_sec().

{ fSecondary = kTRUE; }

void PndTrkTrackFinder::SetParContainers

(

)

Definition at line 528 of file PndTrkTrackFinder.cxx.

References fSttParameters, and rtdb.

                                         {
  FairRuntimeDb* rtdb = FairRunAna::Instance()->GetRuntimeDb();
  fSttParameters = (PndGeoSttPar*) rtdb->getContainer("PndGeoSttPar");
}

void PndTrkTrackFinder::SwitchOnDisplay ( )

inline

Definition at line 70 of file PndTrkTrackFinder.h.

References fDisplayOn.

{ fDisplayOn = kTRUE; }

Member Data Documentation

PndTrkConformalTransform* PndTrkTrackFinder::conform

private

Definition at line 200 of file PndTrkTrackFinder.h.

Referenced by AnalyticalFit(), AnalyticalFit2(), AnalyticalParabolaFit(), ClusterToConformal(), CreateClusterAroundTrack(), Exec(), FillConformalHitList(), Init(), and ~PndTrkTrackFinder().

TCanvas* PndTrkTrackFinder::display

private

Definition at line 215 of file PndTrkTrackFinder.h.

Referenced by AnalyticalFit(), AnalyticalFit2(), AnalyticalParabolaFit(), Apollonius(), CleanUpSkewHitList(), CreateClusterAroundTrack(), CreateFullClusterization(), CreateSkewHitList(), DrawConfHit(), DrawGeometry(), DrawGeometryConf(), DrawHits(), DrawLegendreHisto(), DrawLists(), DrawNeighboringsToHit(), DrawZGeometry(), Exec(), ExtractLegendre(), FillHitMap(), Init(), LegendreFit(), Reset(), and ~PndTrkTrackFinder().

PndTrkCluster* PndTrkTrackFinder::fCluster

private

Definition at line 218 of file PndTrkTrackFinder.h.

Referenced by Init().

PndTrkGemCombinatorial* PndTrkTrackFinder::fCombiFinder

private

Definition at line 178 of file PndTrkTrackFinder.h.

Referenced by Init(), and Initialize().

PndTrkConformalHitList* PndTrkTrackFinder::fConformalHitList

private

Definition at line 201 of file PndTrkTrackFinder.h.

Referenced by ClusterToConformal(), ComputePlaneExtremities(), Exec(), ExtractLegendre(), FillConformalHitList(), FillLegendreHisto(), FromConformalToRealTrack(), FromConformalToRealTrackParabola(), FromRealToConformalTrack(), Init(), Initialize(), and ~PndTrkTrackFinder().

Bool_t PndTrkTrackFinder::fDelPrim

private

Definition at line 195 of file PndTrkTrackFinder.h.

Referenced by DeletePrimaryHits(), Init(), and Initialize().

double PndTrkTrackFinder::fDeltaThetaRad

private

Definition at line 188 of file PndTrkTrackFinder.h.

Bool_t PndTrkTrackFinder::fDisplayOn

private

Definition at line 191 of file PndTrkTrackFinder.h.

Referenced by AnalyticalFit(), AnalyticalFit2(), AnalyticalParabolaFit(), Apollonius(), CleanUpSkewHitList(), CreateClusterAroundTrack(), CreateFullClusterization(), CreateSkewHitList(), Exec(), ExtractLegendre(), FillHitMap(), FillLegendreHisto(), Init(), LegendreFit(), RePrepareLegendre(), Reset(), and SwitchOnDisplay().

Int_t PndTrkTrackFinder::fEventCounter

private

Definition at line 176 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), and Reset().

PndTrkCluster* PndTrkTrackFinder::fFinalCluster

private

Definition at line 219 of file PndTrkTrackFinder.h.

Referenced by Exec(), and Init().

PndTrkCluster* PndTrkTrackFinder::fFinalSkewCluster

private

Definition at line 222 of file PndTrkTrackFinder.h.

Referenced by Init().

PndTrkFitter* PndTrkTrackFinder::fFitter

private

Definition at line 209 of file PndTrkTrackFinder.h.

Referenced by AnalyticalFit(), AnalyticalFit2(), AnalyticalParabolaFit(), Exec(), Init(), and ~PndTrkTrackFinder().

std::vector< std::pair<double, double> > PndTrkTrackFinder::fFoundPeaks

private

Definition at line 206 of file PndTrkTrackFinder.h.

Referenced by ExtractLegendre(), and Initialize().

char PndTrkTrackFinder::fGemBranch[200]

private

Definition at line 168 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), Initialize(), PndTrkTrackFinder(), and PrimaryCheck().

TClonesArray* PndTrkTrackFinder::fGemHitArray

private

Input array of GemHitArray

Definition at line 160 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), Initialize(), PrimaryCheck(), and ~PndTrkTrackFinder().

PndTrkNeighboringMap* PndTrkTrackFinder::fHitMap

private

Definition at line 211 of file PndTrkTrackFinder.h.

Referenced by CreateFullClusterization(), DrawLists(), DrawNeighboringsToHit(), Exec(), FillHitMap(), Init(), and ~PndTrkTrackFinder().

PndTrkCluster* PndTrkTrackFinder::fIndivCluster

private

Definition at line 220 of file PndTrkTrackFinder.h.

Referenced by Init().

PndTrkCluster* PndTrkTrackFinder::fIndivisibleHitList

private

Definition at line 223 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), and Reset().

Bool_t PndTrkTrackFinder::fInitDone

private

Definition at line 191 of file PndTrkTrackFinder.h.

Referenced by Initialize(), and Reset().

TH2F* PndTrkTrackFinder::fLineHisto

private

Definition at line 217 of file PndTrkTrackFinder.h.

Referenced by Exec(), and Init().

PndSttMapCreator* PndTrkTrackFinder::fMapper

private

Definition at line 174 of file PndTrkTrackFinder.h.

Referenced by Init(), and ~PndTrkTrackFinder().

Double_t PndTrkTrackFinder::fMvdPix_ConfDistLimit

private

Definition at line 192 of file PndTrkTrackFinder.h.

Referenced by Init().

Double_t PndTrkTrackFinder::fMvdPix_RealDistLimit

private

Definition at line 192 of file PndTrkTrackFinder.h.

Referenced by Init().

char PndTrkTrackFinder::fMvdPixelBranch[200]

private

Definition at line 168 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), Initialize(), PndTrkTrackFinder(), and PrimaryCheck().

TClonesArray* PndTrkTrackFinder::fMvdPixelHitArray

private

Input array of MvdPixelHitArray

Definition at line 153 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), Initialize(), PrimaryCheck(), and ~PndTrkTrackFinder().

Double_t PndTrkTrackFinder::fMvdStr_ConfDistLimit

private

Definition at line 192 of file PndTrkTrackFinder.h.

Referenced by Init().

Double_t PndTrkTrackFinder::fMvdStr_RealDistLimit

private

Definition at line 192 of file PndTrkTrackFinder.h.

Referenced by Init().

char PndTrkTrackFinder::fMvdStripBranch[200]

private

Definition at line 168 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), Initialize(), PndTrkTrackFinder(), and PrimaryCheck().

TClonesArray* PndTrkTrackFinder::fMvdStripHitArray

private

Input array of MvdStripHitArray

Definition at line 155 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), Initialize(), PrimaryCheck(), and ~PndTrkTrackFinder().

Int_t PndTrkTrackFinder::fNofGemHits

private

Definition at line 144 of file PndTrkTrackFinder.h.

Int_t PndTrkTrackFinder::fNofHits

private

Definition at line 144 of file PndTrkTrackFinder.h.

Int_t PndTrkTrackFinder::fNofMvdPixHits

private

Definition at line 144 of file PndTrkTrackFinder.h.

Int_t PndTrkTrackFinder::fNofMvdStrHits

private

Definition at line 144 of file PndTrkTrackFinder.h.

Int_t PndTrkTrackFinder::fNofPrimaries

private

Definition at line 196 of file PndTrkTrackFinder.h.

Referenced by Exec(), and Initialize().

Int_t PndTrkTrackFinder::fNofSciTHits

private

Definition at line 144 of file PndTrkTrackFinder.h.

Int_t PndTrkTrackFinder::fNofSttHits

private

Definition at line 144 of file PndTrkTrackFinder.h.

Int_t PndTrkTrackFinder::fNofTriplets

private

Definition at line 144 of file PndTrkTrackFinder.h.

Bool_t PndTrkTrackFinder::fPersistence

private

Definition at line 191 of file PndTrkTrackFinder.h.

Referenced by Init().

TClonesArray * PndTrkTrackFinder::fPrimaryTrackArray

private

Definition at line 162 of file PndTrkTrackFinder.h.

Referenced by Init(), and RecreateHitArrays().

PndTrkHit* PndTrkTrackFinder::fRefHit

private

Definition at line 194 of file PndTrkTrackFinder.h.

Referenced by AnalyticalFit(), AnalyticalParabolaFit(), ClusterToConformal(), Exec(), FillConformalHitList(), and ~PndTrkTrackFinder().

double PndTrkTrackFinder::fRmax

private

Definition at line 193 of file PndTrkTrackFinder.h.

Referenced by ComputePlaneExtremities(), and Exec().

double PndTrkTrackFinder::fRmin

private

Definition at line 193 of file PndTrkTrackFinder.h.

Referenced by ComputePlaneExtremities(), and Exec().

char PndTrkTrackFinder::fSciTBranch[200]

private

Definition at line 168 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), Initialize(), and PndTrkTrackFinder().

TClonesArray* PndTrkTrackFinder::fSciTHitArray

private

Input array of SciTHitArray

Definition at line 158 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), Initialize(), and ~PndTrkTrackFinder().

Bool_t PndTrkTrackFinder::fSecondary

private

Definition at line 191 of file PndTrkTrackFinder.h.

Referenced by ClusterToConformal(), Init(), and SearchSecondaryTracks().

PndTrkCluster* PndTrkTrackFinder::fSkewCluster

private

Definition at line 221 of file PndTrkTrackFinder.h.

Referenced by Init().

Double_t PndTrkTrackFinder::fStt_ConfDistLimit

private

Definition at line 192 of file PndTrkTrackFinder.h.

Referenced by Init().

Double_t PndTrkTrackFinder::fStt_RealDistLimit

private

Definition at line 192 of file PndTrkTrackFinder.h.

Referenced by Init().

char PndTrkTrackFinder::fSttBranch[200]

private

Definition at line 168 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), Initialize(), PndTrkTrackFinder(), and PrimaryCheck().

TClonesArray* PndTrkTrackFinder::fSttHitArray

private

Input array of PndSttHit

Definition at line 149 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), Initialize(), PrimaryCheck(), and ~PndTrkTrackFinder().

Double_t PndTrkTrackFinder::fSttParalDistance

private

Definition at line 185 of file PndTrkTrackFinder.h.

PndGeoSttPar* PndTrkTrackFinder::fSttParameters

private

Definition at line 167 of file PndTrkTrackFinder.h.

Referenced by Init(), SetParContainers(), and ~PndTrkTrackFinder().

TClonesArray* PndTrkTrackFinder::fSttPointArray

private

Input array of PndSttPoints

Definition at line 147 of file PndTrkTrackFinder.h.

Referenced by ~PndTrkTrackFinder().

Double_t PndTrkTrackFinder::fSttToMvdStripDistance

private

Definition at line 185 of file PndTrkTrackFinder.h.

double PndTrkTrackFinder::fThetamax

private

Definition at line 193 of file PndTrkTrackFinder.h.

double PndTrkTrackFinder::fThetamin

private

Definition at line 193 of file PndTrkTrackFinder.h.

double PndTrkTrackFinder::fTime

private

Definition at line 207 of file PndTrkTrackFinder.h.

Referenced by Reset().

TStopwatch* PndTrkTrackFinder::fTimer

private

Definition at line 208 of file PndTrkTrackFinder.h.

Referenced by Init(), Reset(), and ~PndTrkTrackFinder().

TClonesArray* PndTrkTrackFinder::fTrackArray

private

Definition at line 162 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), RecreateHitArrays(), and ~PndTrkTrackFinder().

TClonesArray * PndTrkTrackFinder::fTrackCandArray

private

Definition at line 162 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), RecreateHitArrays(), and ~PndTrkTrackFinder().

PndTrkTrackList* PndTrkTrackFinder::fTrackList

private

Definition at line 225 of file PndTrkTrackFinder.h.

Referenced by Exec(), and Init().

TClonesArray * PndTrkTrackFinder::fTrkTrackArray

private

Definition at line 162 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), and ~PndTrkTrackFinder().

TClonesArray* PndTrkTrackFinder::fTubeArray

private

Definition at line 164 of file PndTrkTrackFinder.h.

Referenced by CountPossibleTracks(), CountTracksInCluster(), CreateClusterAroundTrack(), CreateSkewHitList(), DrawGeometry(), DrawLists(), DrawNeighboringsToHit(), Exec(), FillHitMap(), Init(), IntersectionFinder(), and ~PndTrkTrackFinder().

double PndTrkTrackFinder::fUmax

private

Definition at line 193 of file PndTrkTrackFinder.h.

Referenced by ComputePlaneExtremities(), Exec(), LegendreFit(), and RePrepareLegendre().

double PndTrkTrackFinder::fUmin

private

Definition at line 193 of file PndTrkTrackFinder.h.

Referenced by ComputePlaneExtremities(), Exec(), LegendreFit(), and RePrepareLegendre().

Bool_t PndTrkTrackFinder::fUseGEM

private

Definition at line 191 of file PndTrkTrackFinder.h.

Referenced by Initialize().

Bool_t PndTrkTrackFinder::fUseMVDPix

private

Definition at line 191 of file PndTrkTrackFinder.h.

Referenced by Initialize().

Bool_t PndTrkTrackFinder::fUseMVDStr

private

Definition at line 191 of file PndTrkTrackFinder.h.

Referenced by Initialize().

Bool_t PndTrkTrackFinder::fUseSCIT

private

Definition at line 191 of file PndTrkTrackFinder.h.

Referenced by Initialize().

Bool_t PndTrkTrackFinder::fUseSTT

private

Definition at line 191 of file PndTrkTrackFinder.h.

Referenced by Initialize().

double PndTrkTrackFinder::fVmax

private

Definition at line 193 of file PndTrkTrackFinder.h.

Referenced by ComputePlaneExtremities(), Exec(), LegendreFit(), and RePrepareLegendre().

double PndTrkTrackFinder::fVmin

private

Definition at line 193 of file PndTrkTrackFinder.h.

Referenced by ComputePlaneExtremities(), Exec(), LegendreFit(), and RePrepareLegendre().

PndTrkGemHitList* PndTrkTrackFinder::gemhitlist

private

Definition at line 184 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), Initialize(), Refresh(), Reset(), and ~PndTrkTrackFinder().

TH2F* PndTrkTrackFinder::huv

private

Definition at line 216 of file PndTrkTrackFinder.h.

Referenced by DrawGeometryConf(), Init(), and ~PndTrkTrackFinder().

TH2F* PndTrkTrackFinder::hxy

private

Definition at line 214 of file PndTrkTrackFinder.h.

Referenced by DrawGeometry(), Init(), and ~PndTrkTrackFinder().

TH2F * PndTrkTrackFinder::hxz

private

Definition at line 214 of file PndTrkTrackFinder.h.

Referenced by ~PndTrkTrackFinder().

TH2F * PndTrkTrackFinder::hzphi

private

Definition at line 214 of file PndTrkTrackFinder.h.

Referenced by CleanUpSkewHitList(), DrawZGeometry(), Init(), and ~PndTrkTrackFinder().

PndTrkLegendreTransform* PndTrkTrackFinder::legendre

private

Definition at line 190 of file PndTrkTrackFinder.h.

Referenced by DrawLegendreHisto(), Exec(), ExtractLegendre(), FillLegendreHisto(), Init(), LegendreFit(), RePrepareLegendre(), and ~PndTrkTrackFinder().

PndTrkSdsHitList* PndTrkTrackFinder::mvdpixhitlist

private

Definition at line 181 of file PndTrkTrackFinder.h.

Referenced by Exec(), FindMvdPixelReferenceHit(), Init(), Initialize(), Refresh(), Reset(), and ~PndTrkTrackFinder().

PndTrkSdsHitList* PndTrkTrackFinder::mvdstrhitlist

private

Definition at line 182 of file PndTrkTrackFinder.h.

Referenced by Exec(), FindMvdStripReferenceHit(), Init(), Initialize(), Refresh(), Reset(), and ~PndTrkTrackFinder().

PndTrkSciTHitList* PndTrkTrackFinder::scithitlist

private

Definition at line 183 of file PndTrkTrackFinder.h.

Referenced by Exec(), Init(), Initialize(), Refresh(), Reset(), and ~PndTrkTrackFinder().

PndTrkSttHitList* PndTrkTrackFinder::stthitlist

private

Definition at line 180 of file PndTrkTrackFinder.h.

Referenced by CountPossibleTracks(), CreateClusterAroundTrack(), CreateFullClusterization(), CreateSkewHitList(), DrawNeighborings(), Exec(), FillHitMap(), FindSttReferenceHit(), Init(), Initialize(), Refresh(), Reset(), and ~PndTrkTrackFinder().

PndTrkTools* PndTrkTrackFinder::tools

private

Definition at line 202 of file PndTrkTrackFinder.h.

Referenced by CreateSkewHitList(), Exec(), Init(), and ~PndTrkTrackFinder().

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The documentation for this class was generated from the following files:

• PndTrkTrackFinder.h
• PndTrkTrackFinder.cxx