AdaptiveGsfVertexFitter Class Reference

#include <AdaptiveGsfVertexFitter.h>

Inheritance diagram for AdaptiveGsfVertexFitter:

Public Types
typedef CachingVertex < 5 >::RefCountedVertexTrack	RefCountedVertexTrack

Public Member Functions
	AdaptiveGsfVertexFitter (const edm::ParameterSet &pSet, const LinearizationPointFinder &linP=DefaultLinearizationPointFinder())
	AdaptiveGsfVertexFitter (const AdaptiveGsfVertexFitter &original)
AdaptiveGsfVertexFitter *	clone () const
virtual CachingVertex< 5 >	vertex (const std::vector< reco::TransientTrack > &tracks) const
virtual CachingVertex< 5 >	vertex (const std::vector< RefCountedVertexTrack > &tracks) const
virtual CachingVertex< 5 >	vertex (const std::vector< reco::TransientTrack > &tracks, const GlobalPoint &linPoint) const
virtual CachingVertex< 5 >	vertex (const std::vector< reco::TransientTrack > &tracks, const reco::BeamSpot &beamSpot) const
virtual CachingVertex< 5 >	vertex (const std::vector< reco::TransientTrack > &tracks, const GlobalPoint &priorPos, const GlobalError &priorError) const
virtual CachingVertex< 5 >	vertex (const std::vector< RefCountedVertexTrack > &tracks, const reco::BeamSpot &spot) const
virtual CachingVertex< 5 >	vertex (const std::vector< RefCountedVertexTrack > &tracks, const GlobalPoint &priorPos, const GlobalError &priorError) const
virtual	~AdaptiveGsfVertexFitter ()
Public Member Functions inherited from VertexFitter< 5 >
virtual CachingVertex< N >	vertex (const std::vector< typename CachingVertex< N >::RefCountedVertexTrack > &tracks) const =0
virtual CachingVertex< N >	vertex (const std::vector< typename CachingVertex< N >::RefCountedVertexTrack > &tracks, const reco::BeamSpot &spot) const =0
virtual CachingVertex< N >	vertex (const std::vector< typename CachingVertex< N >::RefCountedVertexTrack > &tracks, const GlobalPoint &priorPos, const GlobalError &priorError) const =0
	VertexFitter ()
virtual	~VertexFitter ()

Private Attributes
AdaptiveVertexFitter *	theFitter

Detailed Description

Sequential vertex fitter, to be used with the Gaussian Sum Vertex Filter After the vertes fit, the tracks can be refit with the additional constraint of the vertex position.

Definition at line 16 of file AdaptiveGsfVertexFitter.h.

Member Typedef Documentation

typedef CachingVertex<5>::RefCountedVertexTrack AdaptiveGsfVertexFitter::RefCountedVertexTrack

Definition at line 20 of file AdaptiveGsfVertexFitter.h.

Constructor & Destructor Documentation

AdaptiveGsfVertexFitter::AdaptiveGsfVertexFitter	(	const edm::ParameterSet &	pSet,
		const LinearizationPointFinder &	linP = DefaultLinearizationPointFinder()
	)

Default constructor, using the given linearization point finder.

Parameters

linP	The LinearizationPointFinder to use
useSmoothing	Specifies whether the tracks sould be refit.

Reads the configurable parameters.

Parameters

maxshift	if the vertex moves further than this (in cm), then we re-iterate.
maxlpshift	if the vertex moves further than this, then we re-linearize the tracks.
maxstep	that's the maximum of iterations that we allow for.
weightthreshold	that's the minimum track weight for a track to be considered "significant". If fewer than two tracks are significant, an exception is thrown.

Definition at line 10 of file AdaptiveGsfVertexFitter.cc.

References edm::ParameterSet::getParameter(), AdaptiveVertexFitter::gsfIntermediarySmoothing(), AdaptiveVertexFitter::setParameters(), and theFitter.

Referenced by clone().

{

  bool limitComponents_ = pSet.getParameter<bool>("limitComponents");

  DeepCopyPointerByClone<GsfVertexMerger> theMerger;

  if (limitComponents_) {
    theMerger = new GsfVertexMerger(pSet.getParameter<edm::ParameterSet>("GsfMergerParameters"));
  }

  theFitter = new AdaptiveVertexFitter(
      GeometricAnnealing(),
      linP,
      GsfVertexUpdator(limitComponents_, &*theMerger),
      GsfVertexTrackCompatibilityEstimator(),
      GsfVertexSmoother(limitComponents_, &*theMerger),
      MultiPerigeeLTSFactory() );
  theFitter->gsfIntermediarySmoothing(true);

  theFitter->setParameters ( pSet.getParameter<double>("maxshift"),
                    pSet.getParameter<double>("maxlpshift"),
                    pSet.getParameter<int>("maxstep"),
                    pSet.getParameter<double>("weightthreshold") );

}

AdaptiveGsfVertexFitter::~AdaptiveGsfVertexFitter ( )

virtual

Definition at line 54 of file AdaptiveGsfVertexFitter.cc.

References theFitter.

{
  delete theFitter;
}

AdaptiveGsfVertexFitter::AdaptiveGsfVertexFitter

(

const AdaptiveGsfVertexFitter &

original

)

Copy constructor

Definition at line 49 of file AdaptiveGsfVertexFitter.cc.

References AdaptiveVertexFitter::clone(), and theFitter.

{
  theFitter = original.theFitter->clone();
}

Member Function Documentation

AdaptiveGsfVertexFitter* AdaptiveGsfVertexFitter::clone ( void  ) const

inlinevirtual

Fit vertex out of a VertexSeed

Implements VertexFitter< 5 >.

Definition at line 38 of file AdaptiveGsfVertexFitter.h.

References AdaptiveGsfVertexFitter().

                                          {
    return new AdaptiveGsfVertexFitter(* this);
  }

virtual CachingVertex<5> AdaptiveGsfVertexFitter::vertex ( const std::vector< reco::TransientTrack > &  tracks ) const

inlinevirtual

Fit vertex out of a set of RecTracks

Implements VertexFitter< 5 >.

Definition at line 47 of file AdaptiveGsfVertexFitter.h.

References theFitter, and AdaptiveVertexFitter::vertex().

Referenced by Tau.Tau::dxy().

  {
    return theFitter->vertex(tracks);
  }

virtual CachingVertex<5> AdaptiveGsfVertexFitter::vertex ( const std::vector< RefCountedVertexTrack > &  tracks ) const

inlinevirtual

Fit vertex out of a set of VertexTracks

Definition at line 55 of file AdaptiveGsfVertexFitter.h.

References theFitter, and AdaptiveVertexFitter::vertex().

Referenced by Tau.Tau::dxy().

  {
    return theFitter->vertex(tracks);
  }

virtual CachingVertex<5> AdaptiveGsfVertexFitter::vertex ( const std::vector< reco::TransientTrack > &  tracks, const GlobalPoint &  linPoint  ) const

inlinevirtual

Fit vertex out of a set of RecTracks. Uses the specified linearization point.

Implements VertexFitter< 5 >.

Definition at line 64 of file AdaptiveGsfVertexFitter.h.

References theFitter, and AdaptiveVertexFitter::vertex().

Referenced by Tau.Tau::dxy().

  {
    return theFitter->vertex(tracks, linPoint);
  }

virtual CachingVertex<5> AdaptiveGsfVertexFitter::vertex ( const std::vector< reco::TransientTrack > &  tracks, const reco::BeamSpot &  beamSpot  ) const

inlinevirtual

Fit vertex out of a set of TransientTracks. The specified BeamSpot will be used as priot, but NOT for the linearization. The specified LinearizationPointFinder will be used to find the linearization point.

Implements VertexFitter< 5 >.

Definition at line 75 of file AdaptiveGsfVertexFitter.h.

References theFitter, and AdaptiveVertexFitter::vertex().

Referenced by Tau.Tau::dxy().

  {
    return theFitter->vertex(tracks, beamSpot);
  }

virtual CachingVertex<5> AdaptiveGsfVertexFitter::vertex ( const std::vector< reco::TransientTrack > &  tracks, const GlobalPoint &  priorPos, const GlobalError &  priorError  ) const

inlinevirtual

Fit vertex out of a set of RecTracks. Uses the specified point as both the linearization point AND as prior estimate of the vertex position. The error is used for the weight of the prior estimate.

Implements VertexFitter< 5 >.

Definition at line 87 of file AdaptiveGsfVertexFitter.h.

References theFitter, and AdaptiveVertexFitter::vertex().

Referenced by Tau.Tau::dxy().

  {
    return theFitter->vertex(tracks, priorPos, priorError);
  }

virtual CachingVertex<5> AdaptiveGsfVertexFitter::vertex ( const std::vector< RefCountedVertexTrack > &  tracks, const reco::BeamSpot &  spot  ) const

inlinevirtual

Definition at line 95 of file AdaptiveGsfVertexFitter.h.

References theFitter, and AdaptiveVertexFitter::vertex().

Referenced by Tau.Tau::dxy().

  {
    return theFitter->vertex(tracks, spot );
  }

virtual CachingVertex<5> AdaptiveGsfVertexFitter::vertex ( const std::vector< RefCountedVertexTrack > &  tracks, const GlobalPoint &  priorPos, const GlobalError &  priorError  ) const

inlinevirtual

Fit vertex out of a set of VertexTracks. Uses the specified point and error as the prior estimate of the vertex. This position is not used to relinearize the tracks.

Definition at line 106 of file AdaptiveGsfVertexFitter.h.

References theFitter, and AdaptiveVertexFitter::vertex().

Referenced by Tau.Tau::dxy().

  {
    return theFitter->vertex(tracks, priorPos, priorError);
  }

Member Data Documentation

AdaptiveVertexFitter* AdaptiveGsfVertexFitter::theFitter

private

Definition at line 115 of file AdaptiveGsfVertexFitter.h.

Referenced by AdaptiveGsfVertexFitter(), vertex(), and ~AdaptiveGsfVertexFitter().