Trk::IVertexUpdator Class Reference

An abstract base class for the vertex updators. More...

#include <IVertexUpdator.h>

Inheritance diagram for Trk::IVertexUpdator:

Collaboration diagram for Trk::IVertexUpdator:

Classes
struct	positionUpdateOutcome

Public Types
enum	updateMode { removeTrack =-1 , addTrack =1 }

Public Member Functions
virtual	~IVertexUpdator ()
	Virtual destructor.
virtual xAOD::Vertex *	add (xAOD::Vertex &, VxTrackAtVertex &) const =0
	Add method: adds one track to a vertex.
virtual xAOD::Vertex *	remove (xAOD::Vertex &, VxTrackAtVertex &) const =0
	Remove method: removes one track from a vertex.
virtual positionUpdateOutcome	positionUpdate (const xAOD::Vertex &vtx, const LinearizedTrack *trk, double trackWeight, updateMode mode) const =0
	Position update method.
virtual float	trackParametersChi2 (const xAOD::Vertex &new_vtx, const LinearizedTrack *trk) const =0
	Method calculating the interstep Chi2 increment.
virtual float	trackParametersChi2 (const positionUpdateOutcome &new_vtx, const LinearizedTrack *trk) const =0
virtual float	vertexPositionChi2 (const xAOD::Vertex &old_vtx, const xAOD::Vertex &new_vtx) const =0
	Method calculating the vertex displacement-related part of the chi2 Can also be called using the outcome from a prior positionUpdate call.
virtual float	vertexPositionChi2 (const xAOD::Vertex &old_vtx, const positionUpdateOutcome &new_vtx) const =0

Static Public Member Functions
static const InterfaceID &	interfaceID ()
	AlgTool interface methods.

Detailed Description

An abstract base class for the vertex updators.

Adds or removes a single Trk::VxTrackAtVertex to or from a Trk::VxCandidate. The new Trk::VxCandidate is returned at the end of this operation. The initial one is not changed.

Authors

Kiril.nosp@m.l.Pr.nosp@m.okofi.nosp@m.ev@c.nosp@m.ern.c.nosp@m.h, Giaci.nosp@m.nto..nosp@m.Piacq.nosp@m.uadi.nosp@m.o@phy.nosp@m.sik..nosp@m.uni-f.nosp@m.reib.nosp@m.urg.d.nosp@m.e

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Changes:

David Shope david.nosp@m..ric.nosp@m.hard..nosp@m.shop.nosp@m.e@cer.nosp@m.n.ch (2016-04-19)

EDM Migration to xAOD - from Trk::VxCandidate to xAOD::Vertex, from Trk::RecVertex to xAOD::Vertex, from Trk::Vertex to Amg::Vector3D

Definition at line 45 of file IVertexUpdator.h.

Member Enumeration Documentation

updateMode

enum Trk::IVertexUpdator::updateMode

Enumerator
removeTrack
addTrack

Definition at line 68 of file IVertexUpdator.h.

                   {
          removeTrack=-1, 
          addTrack=1 
       } updateMode;

Constructor & Destructor Documentation

~IVertexUpdator()

virtual Trk::IVertexUpdator::~IVertexUpdator ( )

inlinevirtual

Virtual destructor.

Definition at line 51 of file IVertexUpdator.h.

{};

Member Function Documentation

add()

virtual xAOD::Vertex * Trk::IVertexUpdator::add ( xAOD::Vertex & , VxTrackAtVertex &  ) const

pure virtual

Add method: adds one track to a vertex.

Implemented in Trk::KalmanVertexUpdator.

interfaceID()

const InterfaceID & Trk::IVertexUpdator::interfaceID ( )

inlinestatic

AlgTool interface methods.

Definition at line 56 of file IVertexUpdator.h.

{ return IID_IVertexUpdator; };

positionUpdate()

virtual positionUpdateOutcome Trk::IVertexUpdator::positionUpdate ( const xAOD::Vertex & vtx, const LinearizedTrack * trk, double trackWeight, updateMode mode ) const

pure virtual

Position update method.

Required for smoothed chi2 calculation
Updates a position with the information from one track.

Implemented in Trk::KalmanVertexUpdator.

remove()

virtual xAOD::Vertex * Trk::IVertexUpdator::remove ( xAOD::Vertex & , VxTrackAtVertex &  ) const

pure virtual

Remove method: removes one track from a vertex.

Implemented in Trk::KalmanVertexUpdator.

trackParametersChi2() [1/2]

virtual float Trk::IVertexUpdator::trackParametersChi2 ( const positionUpdateOutcome & new_vtx, const LinearizedTrack * trk ) const

pure virtual

Implemented in Trk::KalmanVertexUpdator.

trackParametersChi2() [2/2]

virtual float Trk::IVertexUpdator::trackParametersChi2 ( const xAOD::Vertex & new_vtx, const LinearizedTrack * trk ) const

pure virtual

Method calculating the interstep Chi2 increment.

Can also be called using the outcome from a prior positionUpdate call.

Implemented in Trk::KalmanVertexUpdator.

vertexPositionChi2() [1/2]

virtual float Trk::IVertexUpdator::vertexPositionChi2 ( const xAOD::Vertex & old_vtx, const positionUpdateOutcome & new_vtx ) const

pure virtual

Implemented in Trk::KalmanVertexUpdator.

vertexPositionChi2() [2/2]

virtual float Trk::IVertexUpdator::vertexPositionChi2 ( const xAOD::Vertex & old_vtx, const xAOD::Vertex & new_vtx ) const

pure virtual

Method calculating the vertex displacement-related part of the chi2
Can also be called using the outcome from a prior positionUpdate call.

Implemented in Trk::KalmanVertexUpdator.

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

• IVertexUpdator.h