TrigVertexFittingNode Class Reference

This is the implementation of classes used by TrigL2VertexFitter: More...

#include <TrigL2Vertex.h>

Inheritance diagram for TrigVertexFittingNode:

Collaboration diagram for TrigVertexFittingNode:

Public Member Functions
	TrigVertexFittingNode ()
virtual	~TrigVertexFittingNode ()
virtual double	getChi2Distance (class TrigL2Vertex *)=0
	abstract method More...
virtual void	updateVertex (class TrigL2Vertex *)=0
	abstract method More...
virtual MsgStream &	report (MsgStream &) const =0

Protected Attributes
double	m_resid [2] {}
double	m_V [2][2] {}
double	m_D [2][MAX_SIZE_VERT_COVM] {}

Detailed Description

This is the implementation of classes used by TrigL2VertexFitter:

• TrigL2Vertex - an extended version of TrigVertex class which incapsulates vertex fit parameters vector and associated covariance matrix.
• TrigVertexFittingNode: base class for
• TrigVertexFitInputTrack which incapsulates input track parameters and is responsible for updating vertex fit parameters

• TrigVertexFitConstraint which incapsulates mass constraint information

  The algorithm used in m_updateVertex method of the TrigVertexFitInputTrack class is described in ATL-COM-DAQ-2007-036 note available at http://cdsweb.cern.ch/record/1062118

  NB: a user should not modify TrigL2Vertex directly but rather use methods provided by TrigVertexingTool

  Vertex fitting loop in the TrigL2VertexFitter basically consists of alternate calls of getChi2Distance and m_updateVertex methods of TrigVertexFittingNodes (i.e. tracks and constraints)

Definition at line 37 of file TrigL2Vertex.h.

Constructor & Destructor Documentation

TrigVertexFittingNode()

TrigVertexFittingNode::TrigVertexFittingNode ( )

inline

Definition at line 40 of file TrigL2Vertex.h.

{};

~TrigVertexFittingNode()

virtual TrigVertexFittingNode::~TrigVertexFittingNode ( )

inlinevirtual

Definition at line 41 of file TrigL2Vertex.h.

{};

Member Function Documentation

getChi2Distance()

virtual double TrigVertexFittingNode::getChi2Distance ( class TrigL2Vertex *  )

pure virtual

abstract method

Implemented in TrigPrimaryVertexTrack, TrigVertexFitConstraint, and TrigVertexFitInputTrack.

report()

virtual MsgStream& TrigVertexFittingNode::report ( MsgStream &  ) const

pure virtual

Implemented in TrigVertexFitConstraint, TrigVertexFitInputTrack, and TrigPrimaryVertexTrack.

updateVertex()

virtual void TrigVertexFittingNode::updateVertex ( class TrigL2Vertex *  )

pure virtual

abstract method

Implemented in TrigPrimaryVertexTrack, TrigVertexFitConstraint, and TrigVertexFitInputTrack.

Member Data Documentation

m_D

double TrigVertexFittingNode::m_D[2][MAX_SIZE_VERT_COVM] {}

protected

Definition at line 48 of file TrigL2Vertex.h.

m_resid

double TrigVertexFittingNode::m_resid[2] {}

protected

Definition at line 46 of file TrigL2Vertex.h.

m_V

double TrigVertexFittingNode::m_V[2][2] {}

protected

Definition at line 47 of file TrigL2Vertex.h.

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

• TrigL2Vertex.h