PndHoughTrackFinder Class Reference

#include <PndHoughTrackFinder.h>

Public Member Functions
	PndHoughTrackFinder ()
	PndHoughTrackFinder (TClonesArray *tubeArray)
virtual	~PndHoughTrackFinder ()
virtual void	SetBinningX (double bin)
	Sets the number of bins in x direction for the Hough space. More...
virtual void	SetBinningY (double bin)
	Sets the number of bins in y direction for the Hough space. More...
virtual void	SetNBinsSeg (Int_t n)
	Sets the number of bins used for the segmentation preselection algorithm. More...
virtual void	SetBz (double B)
	Sets the z component of the magnetic field. More...
virtual void	SetCutMergeByHoughSpace (float cut)
	Sets the cut value for the distance of two maxima in the Hough space which have to be merged. More...
virtual void	SetWithGPU (bool cuda)
	Sets a bool for deciding to use cuda. More...
virtual void	SetWithGhostReduction (bool ghostred)
	Sets a bool for deciding to use a ghost reduction. More...
virtual void	SetPreselectedTrackCands (std::vector< PndTrackCand > cands)
virtual void	UseDefaultPreselection (bool pres)
virtual void	SetCombinedSkewed (TClonesArray *skewed)
void	Init ()
	Initializes the data structure and the Hough space of the HoughtrackFinder. More...
void	Reset ()
	Resets the data for a new event. More...
void	AddHits (TClonesArray *hits, TString branchName)
	Adds hits to the data structure of the HoughTrackFinder. More...
void	CreateNeighborhood ()
	Creates the neighborhood parameters for all investigated hits. More...
void	FindTracks ()
	Main function of the HoughTrackFinder, which finds the tracks. More...
void	Preselection ()
	Here all data are preselected in smaller tracklets. More...
void	FindHoughMaxima ()
	Performs a Hough transformation for all preselected tracklets. The found track parameters are stored in fPreselectedTrackCircles. More...
TVector2	calcPhiRange (PndTrackCand &trackCand)
bool	IsInPhiRange (FairHit *hit, double phiLow, double phiHigh)
void	AddSkewedHits (int i)
void	AddOtherDetectorHits (int i, TString type)
PndApollonius::TripletSolution	FromPndTrackToTripletSolution (PndTrack &track, PndHoughData *fData)
std::vector< PndApollonius::TripletSolution >	CombineIdenticalSolutionsFinal (std::vector< PndApollonius::TripletSolution > &solutions, Double_t ratioOfSameHits)
PndTrack	FromTripletSolutionToPndTrack (PndApollonius::TripletSolution &sol, Double_t B)
	Converts a TripletSolution to a PndTrack. More...
double	CalcRatioSameHits (PndApollonius::TripletSolution &sol, std::vector< PndApollonius::TripletSolution > &AlreadyFoundSolutions)
PndTrackCand	GetPreselectedTrackCand (int i)
	Returns a specific preselected track candidate. More...
int	GetNumPreselectedTrackCands ()
	Returns the number of preselected track candidates. More...
TVector3	GetPreselectedTrackCircles (int i)
	Returns a the corresponding circle for a specific preselected track candidate. More...
int	GetNumPreselectedTrackCircles ()
	Returns the number of preselected circles for track candidates. More...
PndTrack	GetMergedTrack (int i)
	Returns a specific found track. More...
int	GetNumMergedTracks ()
	Returns the number of found tracks. More...
std::map< FairLink, FairHit * >	GetMapFairLinktoFairHit ()
	Returns a specific found track candidate. More...
PndHoughData *	GetData ()
	Returns the data class of the HoughTrackFinder. More...

Detailed Description

PndHoughTrackFinder

Author

Anna Alicke a.ali.nosp@m.cke@.nosp@m.fz-ju.nosp@m.elic.nosp@m.h.de

Since

29.10.2018 23.11.2021

Version

3.1

PANDA class for finding tracks based on a hough transformation Task level RECO

Definition at line 32 of file PndHoughTrackFinder.h.

Constructor & Destructor Documentation

PndHoughTrackFinder() [1/2]

PndHoughTrackFinder::PndHoughTrackFinder ( )

inline

Definition at line 34 of file PndHoughTrackFinder.h.

{};

PndHoughTrackFinder() [2/2]

PndHoughTrackFinder::PndHoughTrackFinder ( TClonesArray *  tubeArray )

inline

Definition at line 36 of file PndHoughTrackFinder.h.

                                               : fNbins1(450), fNbins2(450), fNBinsSeg(90.), fBz(2.), fCutMergeByHoughSpace(5.), fWithGPU(kFALSE), fWithGhostReduction(kTRUE)
  {
    // Generate TrackFinderData-Object
    fData = new PndHoughData(tubeArray);
    fCATrackFinder = new PndSttCA(tubeArray);
    ioman = FairRootManager::Instance();
  };

~PndHoughTrackFinder()

virtual PndHoughTrackFinder::~PndHoughTrackFinder ( )

inlinevirtual

Destructor

Definition at line 45 of file PndHoughTrackFinder.h.

  {
    delete fData;
    delete fCATrackFinder;

    delete fPndHoughTransformation;
    delete fPndHoughPreprocessing;
    delete fPndHoughMerge;
    delete fPndHoughSegment;
    delete fPndHoughUtilities;
    delete fPndHoughTrackCorrection;
  }

Member Function Documentation

AddHits()

void PndHoughTrackFinder::AddHits	(	TClonesArray *	hits,
		TString	branchName
	)

Adds hits to the data structure of the HoughTrackFinder.

Referenced by Reset().

AddOtherDetectorHits()

void PndHoughTrackFinder::AddOtherDetectorHits	(	int	i,
		TString	type
	)

Referenced by CreateNeighborhood().

AddSkewedHits()

void PndHoughTrackFinder::AddSkewedHits

(

int

i

)

Referenced by CreateNeighborhood().

calcPhiRange()

TVector2 PndHoughTrackFinder::calcPhiRange

(

PndTrackCand &

trackCand

)

Referenced by CreateNeighborhood().

CalcRatioSameHits()

double PndHoughTrackFinder::CalcRatioSameHits	(	PndApollonius::TripletSolution &	sol,
		std::vector< PndApollonius::TripletSolution > &	AlreadyFoundSolutions
	)

Referenced by CreateNeighborhood().

CombineIdenticalSolutionsFinal()

std::vector<PndApollonius::TripletSolution> PndHoughTrackFinder::CombineIdenticalSolutionsFinal	(	std::vector< PndApollonius::TripletSolution > &	solutions,
		Double_t	ratioOfSameHits
	)

Referenced by CreateNeighborhood().

CreateNeighborhood()

void PndHoughTrackFinder::CreateNeighborhood ( )

inline

Creates the neighborhood parameters for all investigated hits.

Definition at line 98 of file PndHoughTrackFinder.h.

References AddOtherDetectorHits(), AddSkewedHits(), calcPhiRange(), CalcRatioSameHits(), CombineIdenticalSolutionsFinal(), PndHoughData::CreateGEMNeighborhoodData(), PndHoughData::CreateSTTNeighborhoodData(), FindHoughMaxima(), FindTracks(), FromPndTrackToTripletSolution(), FromTripletSolutionToPndTrack(), i, IsInPhiRange(), and Preselection().

  {
    fData->CreateSTTNeighborhoodData();
    fData->CreateGEMNeighborhoodData();
  }

FindHoughMaxima()

void PndHoughTrackFinder::FindHoughMaxima

(

)

Performs a Hough transformation for all preselected tracklets. The found track parameters are stored in fPreselectedTrackCircles.

Referenced by CreateNeighborhood().

FindTracks()

void PndHoughTrackFinder::FindTracks

(

)

Main function of the HoughTrackFinder, which finds the tracks.

Referenced by CreateNeighborhood().

FromPndTrackToTripletSolution()

PndApollonius::TripletSolution PndHoughTrackFinder::FromPndTrackToTripletSolution	(	PndTrack &	track,
		PndHoughData *	fData
	)

Referenced by CreateNeighborhood().

FromTripletSolutionToPndTrack()

PndTrack PndHoughTrackFinder::FromTripletSolutionToPndTrack	(	PndApollonius::TripletSolution &	sol,
		Double_t	B
	)

Converts a TripletSolution to a PndTrack.

Parameters

[in]	sol	The TripletSolution
[out]	result	The PndTrack

Referenced by CreateNeighborhood().

GetData()

PndHoughData* PndHoughTrackFinder::GetData ( )

inline

Returns the data class of the HoughTrackFinder.

Definition at line 155 of file PndHoughTrackFinder.h.

{ return fData; };

GetMapFairLinktoFairHit()

std::map<FairLink, FairHit *> PndHoughTrackFinder::GetMapFairLinktoFairHit ( )

inline

Returns a specific found track candidate.

Returns the number of found track candidates. Returns a map linking FairLinks to the corresponding FairHits.

Definition at line 152 of file PndHoughTrackFinder.h.

References PndHoughData::GetMapFairLinktoFairHit().

{ return fData->GetMapFairLinktoFairHit(); };

GetMergedTrack()

PndTrack PndHoughTrackFinder::GetMergedTrack ( int  i )

inline

Returns a specific found track.

Definition at line 140 of file PndHoughTrackFinder.h.

References PndHoughMerge::GetMergedTrack().

{ return fPndHoughMerge->GetMergedTrack(i); };

GetNumMergedTracks()

int PndHoughTrackFinder::GetNumMergedTracks ( )

inline

Returns the number of found tracks.

Definition at line 143 of file PndHoughTrackFinder.h.

References PndHoughMerge::GetNumMergedTracks().

{ return fPndHoughMerge->GetNumMergedTracks(); };

GetNumPreselectedTrackCands()

int PndHoughTrackFinder::GetNumPreselectedTrackCands ( )

inline

Returns the number of preselected track candidates.

Definition at line 131 of file PndHoughTrackFinder.h.

{ return fPreselectedTrackCands.size(); };

GetNumPreselectedTrackCircles()

int PndHoughTrackFinder::GetNumPreselectedTrackCircles ( )

inline

Returns the number of preselected circles for track candidates.

Definition at line 137 of file PndHoughTrackFinder.h.

{ return fPreselectedTrackCircles.size(); };

GetPreselectedTrackCand()

PndTrackCand PndHoughTrackFinder::GetPreselectedTrackCand ( int  i )

inline

Returns a specific preselected track candidate.

Definition at line 128 of file PndHoughTrackFinder.h.

References i.

{ return fPreselectedTrackCands[i]; };

GetPreselectedTrackCircles()

TVector3 PndHoughTrackFinder::GetPreselectedTrackCircles ( int  i )

inline

Returns a the corresponding circle for a specific preselected track candidate.

Definition at line 134 of file PndHoughTrackFinder.h.

References i.

{ return fPreselectedTrackCircles[i]; };

Init()

void PndHoughTrackFinder::Init ( )

inline

Initializes the data structure and the Hough space of the HoughtrackFinder.

Definition at line 76 of file PndHoughTrackFinder.h.

References PndHoughData::Init(), and PndSttCA::SetUseGPU().

  {
    fData->Init(fNbins1, fNbins2);
    fCATrackFinder->SetUseGPU(fWithGPU);
  }

IsInPhiRange()

bool PndHoughTrackFinder::IsInPhiRange	(	FairHit *	hit,
		double	phiLow,
		double	phiHigh
	)

Referenced by CreateNeighborhood().

Preselection()

void PndHoughTrackFinder::Preselection

(

)

Here all data are preselected in smaller tracklets.

Referenced by CreateNeighborhood().

Reset()

void PndHoughTrackFinder::Reset ( )

inline

Resets the data for a new event.

Definition at line 83 of file PndHoughTrackFinder.h.

References AddHits(), PndHoughData::clear(), PndSttCA::Reset(), and PndSttCA::SetUseGPU().

  {
    fData->clear();

    fCATrackFinder->SetUseGPU(fWithGPU);
    fCATrackFinder->Reset();

    fPreselectedTrackCands.clear();
    fPreselectedTrackCircles.clear();
  }

SetBinningX()

virtual void PndHoughTrackFinder::SetBinningX ( double  bin )

inlinevirtual

Sets the number of bins in x direction for the Hough space.

Definition at line 59 of file PndHoughTrackFinder.h.

{ fNbins1 = bin; };

SetBinningY()

virtual void PndHoughTrackFinder::SetBinningY ( double  bin )

inlinevirtual

Sets the number of bins in y direction for the Hough space.

Definition at line 61 of file PndHoughTrackFinder.h.

{ fNbins2 = bin; };

SetBz()

virtual void PndHoughTrackFinder::SetBz ( double  B )

inlinevirtual

Sets the z component of the magnetic field.

Definition at line 65 of file PndHoughTrackFinder.h.

{ fBz = B; };

SetCombinedSkewed()

virtual void PndHoughTrackFinder::SetCombinedSkewed ( TClonesArray *  skewed )

inlinevirtual

Definition at line 74 of file PndHoughTrackFinder.h.

{ fCombinedSkewed = skewed; };

SetCutMergeByHoughSpace()

virtual void PndHoughTrackFinder::SetCutMergeByHoughSpace ( float  cut )

inlinevirtual

Sets the cut value for the distance of two maxima in the Hough space which have to be merged.

Definition at line 67 of file PndHoughTrackFinder.h.

References cut.

{ fCutMergeByHoughSpace = cut; }

SetNBinsSeg()

virtual void PndHoughTrackFinder::SetNBinsSeg ( Int_t  n )

inlinevirtual

Sets the number of bins used for the segmentation preselection algorithm.

Definition at line 63 of file PndHoughTrackFinder.h.

{ fNBinsSeg = n; };

SetPreselectedTrackCands()

virtual void PndHoughTrackFinder::SetPreselectedTrackCands ( std::vector< PndTrackCand >  cands )

inlinevirtual

Definition at line 72 of file PndHoughTrackFinder.h.

{ fPreselectedTrackCands = cands; };

SetWithGhostReduction()

virtual void PndHoughTrackFinder::SetWithGhostReduction ( bool  ghostred )

inlinevirtual

Sets a bool for deciding to use a ghost reduction.

Definition at line 71 of file PndHoughTrackFinder.h.

{ fWithGhostReduction = ghostred; }

SetWithGPU()

virtual void PndHoughTrackFinder::SetWithGPU ( bool  cuda )

inlinevirtual

Sets a bool for deciding to use cuda.

Definition at line 69 of file PndHoughTrackFinder.h.

{ fWithGPU = cuda; }

UseDefaultPreselection()

virtual void PndHoughTrackFinder::UseDefaultPreselection ( bool  pres )

inlinevirtual

Definition at line 73 of file PndHoughTrackFinder.h.

{ fUseDefaultPreselection = pres; };

---

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

• PndHoughTrackFinder.h