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TrimmedVertexFinder Class Reference

Algorithm to find 0 or 1 cluster of tracks that are compatible with a single vertex, among `remain`, the initial set of tracks. More...

#include <RecoVertex/TrimmedKalmanVertexFinder/interface/TrimmedVertexFinder.h>

List of all members.

Public Types
typedef ReferenceCountingPointer < LinearizedTrackState< 5 > >	RefCountedLinearizedTrackState
typedef ReferenceCountingPointer < VertexTrack< 5 > >	RefCountedVertexTrack
Public Member Functions
TrimmedVertexFinder *	clone () const
	clone method
void	setTrackCompatibilityCut (float cut)
	Set parameter.
float	trackCompatibilityCut () const
	Access to parameter.
	TrimmedVertexFinder (const TrimmedVertexFinder &other)
	Copy constructor, needed to handle copy of pointer data members correctly.
	TrimmedVertexFinder (const VertexFitter< 5 > *vf, const VertexUpdator< 5 > *vu, const VertexTrackCompatibilityEstimator< 5 > *ve)
std::vector< TransientVertex >	vertices (std::vector< reco::TransientTrack > &remain) const
	Make 0 or 1 vertex On output, `remain` contains the incompatible tracks.
	~TrimmedVertexFinder ()
Private Member Functions
vector< RefCountedVertexTrack > ::iterator	theWorst (const CachingVertex< 5 > &vtx, std::vector< RefCountedVertexTrack > &vtxTracks, float cut) const
Private Attributes
VertexTrackCompatibilityEstimator< 5 > *	theEstimator
VertexFitter< 5 > *	theFitter
float	theMinProb
VertexUpdator< 5 > *	theUpdator

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Detailed Description

Algorithm to find 0 or 1 cluster of tracks that are compatible with a single vertex, among `remain`, the initial set of tracks.

A track is declared incompatible with the vertex if the chi-squared probability between the track and the vertex is smaller than `min`. The algorithm applied is:
1) fit a single vertex with all tracks;
2) remove incompatible tracks 1 by 1 starting from the least compatible one.
On output, `remain` contains the incompatible tracks. This algorithm has 1 parameter that can be set at runtime via the corresponding set() method:

• "trackCompatibilityCut" (default: 0.05) which defines the probability below which a track is considered incompatible with a vertex.

Definition at line 28 of file TrimmedVertexFinder.h.

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Member Typedef Documentation

typedef ReferenceCountingPointer<LinearizedTrackState<5> > TrimmedVertexFinder::RefCountedLinearizedTrackState

Definition at line 33 of file TrimmedVertexFinder.h.

typedef ReferenceCountingPointer<VertexTrack<5> > TrimmedVertexFinder::RefCountedVertexTrack

Definition at line 32 of file TrimmedVertexFinder.h.

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Constructor & Destructor Documentation

TrimmedVertexFinder::TrimmedVertexFinder	(	const VertexFitter< 5 > *	vf,
		const VertexUpdator< 5 > *	vu,
		const VertexTrackCompatibilityEstimator< 5 > *	ve
	)

Definition at line 8 of file TrimmedVertexFinder.cc.

Referenced by clone().

  : theFitter(vf->clone()), theUpdator(vu->clone()), 
    theEstimator(ve->clone()), theMinProb(0.05)
{}

TrimmedVertexFinder::TrimmedVertexFinder

(

const TrimmedVertexFinder &

other

)

Copy constructor, needed to handle copy of pointer data members correctly.

Definition at line 16 of file TrimmedVertexFinder.cc.

  : theFitter(other.theFitter->clone()), 
  theUpdator(other.theUpdator->clone()), 
  theEstimator(other.theEstimator->clone()), 
  theMinProb(other.theMinProb)
{}

TrimmedVertexFinder::~TrimmedVertexFinder

(

)

Definition at line 25 of file TrimmedVertexFinder.cc.

References theEstimator, theFitter, and theUpdator.

                                          {
  delete theFitter;
  delete theUpdator;
  delete theEstimator;
}

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Member Function Documentation

TrimmedVertexFinder* TrimmedVertexFinder::clone

(

void

)

const [inline]

clone method

Definition at line 60 of file TrimmedVertexFinder.h.

References TrimmedVertexFinder().

                                      {
    return new TrimmedVertexFinder(*this);
  }

void TrimmedVertexFinder::setTrackCompatibilityCut

(

float

cut

)

[inline]

Set parameter.

Definition at line 56 of file TrimmedVertexFinder.h.

References theMinProb.

Referenced by ConfigurableTrimmedVertexFinder::vertexCandidates().

{ theMinProb = cut; }

vector<RefCountedVertexTrack>::iterator TrimmedVertexFinder::theWorst	(	const CachingVertex< 5 > &	vtx,
		std::vector< RefCountedVertexTrack > &	vtxTracks,
		float	cut
	)			const [private]

float TrimmedVertexFinder::trackCompatibilityCut

(

)

const [inline]

Access to parameter.

Definition at line 52 of file TrimmedVertexFinder.h.

References theMinProb.

{ return theMinProb; }

std::vector<TransientVertex> TrimmedVertexFinder::vertices

(

std::vector< reco::TransientTrack > &

remain

)

const

Make 0 or 1 vertex On output, `remain` contains the incompatible tracks.

Referenced by ConfigurableTrimmedVertexFinder::vertexCandidates().

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Member Data Documentation

VertexTrackCompatibilityEstimator<5>* TrimmedVertexFinder::theEstimator [private]

Definition at line 77 of file TrimmedVertexFinder.h.

Referenced by ~TrimmedVertexFinder().

VertexFitter<5>* TrimmedVertexFinder::theFitter [private]

Definition at line 75 of file TrimmedVertexFinder.h.

Referenced by ~TrimmedVertexFinder().

float TrimmedVertexFinder::theMinProb [private]

Definition at line 78 of file TrimmedVertexFinder.h.

Referenced by setTrackCompatibilityCut(), and trackCompatibilityCut().

VertexUpdator<5>* TrimmedVertexFinder::theUpdator [private]

Definition at line 76 of file TrimmedVertexFinder.h.

Referenced by ~TrimmedVertexFinder().

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

• RecoVertex/TrimmedKalmanVertexFinder/interface/TrimmedVertexFinder.h
• RecoVertex/TrimmedKalmanVertexFinder/src/TrimmedVertexFinder.cc

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