VertexDistance Class Reference

#include <VertexDistance.h>

Inheritance diagram for VertexDistance:

Public Member Functions
virtual VertexDistance *	clone () const =0
virtual float	compatibility (const reco::Vertex &, const reco::Vertex &) const
virtual float	compatibility (const reco::Vertex &, const VertexState &) const
virtual float	compatibility (const VertexState &, const reco::Vertex &) const
virtual float	compatibility (const VertexState &, const VertexState &) const
Measurement1D	distance (const reco::Vertex &, const reco::Vertex &) const
Measurement1D	distance (const reco::Vertex &, const VertexState &) const
Measurement1D	distance (const VertexState &, const reco::Vertex &) const
Measurement1D	distance (const VertexState &, const VertexState &) const
virtual Measurement1D	signedDistance (const reco::Vertex &primVtx, const reco::Vertex &secVtx, const GlobalVector &momentum) const =0
virtual	~VertexDistance ()

Protected Member Functions
virtual float	compatibility (const GlobalPoint &vtx1Position, const GlobalError &vtx1PositionError, const GlobalPoint &vtx2Position, const GlobalError &vtx2PositionError) const =0
virtual Measurement1D	distance (const GlobalPoint &vtx1Position, const GlobalError &vtx1PositionError, const GlobalPoint &vtx2Position, const GlobalError &vtx2PositionError) const =0

Detailed Description

Abstact class which defines a distance and compatibility between vertices.

Definition at line 16 of file VertexDistance.h.

Constructor & Destructor Documentation

~VertexDistance()

virtual VertexDistance::~VertexDistance ( )

inlinevirtual

Definition at line 18 of file VertexDistance.h.

{}

Member Function Documentation

clone()

virtual VertexDistance* VertexDistance::clone ( ) const

pure virtual

Implemented in VertexDistance3D, and VertexDistanceXY.

compatibility() [1/5]

virtual float VertexDistance::compatibility ( const GlobalPoint &  vtx1Position, const GlobalError &  vtx1PositionError, const GlobalPoint &  vtx2Position, const GlobalError &  vtx2PositionError  ) const

protectedpure virtual

Implemented in VertexDistance3D, and VertexDistanceXY.

compatibility() [2/5]

float VertexDistance::compatibility ( const reco::Vertex &  vtx1, const reco::Vertex &  vtx2  ) const

virtual

Definition at line 51 of file VertexDistance.cc.

                                                                                {
  return compatibility(GlobalPoint(Basic3DVector<float>(vtx1.position())),
                       GlobalError(vtx1.covariance()),
                       GlobalPoint(Basic3DVector<float>(vtx2.position())),
                       GlobalError(vtx2.covariance()));
}

References reco::Vertex::covariance(), and reco::Vertex::position().

compatibility() [3/5]

float VertexDistance::compatibility ( const reco::Vertex &  vtx1, const VertexState &  vtx2  ) const

virtual

Definition at line 37 of file VertexDistance.cc.

                                                                                     {
  return compatibility(GlobalPoint(Basic3DVector<float>(vtx1.position())),
                       GlobalError(vtx1.covariance()),
                       vtx2.position(),
                       vtx2.error());
}

References reco::Vertex::covariance(), VertexState::error(), VertexState::position(), and reco::Vertex::position().

compatibility() [4/5]

float VertexDistance::compatibility ( const VertexState &  vtx1, const reco::Vertex &  vtx2  ) const

virtual

Definition at line 44 of file VertexDistance.cc.

                                                                                     {
  return compatibility(vtx1.position(),
                       vtx1.error(),
                       GlobalPoint(Basic3DVector<float>(vtx2.position())),
                       GlobalError(vtx2.covariance()));
}

References reco::Vertex::covariance(), VertexState::error(), VertexState::position(), and reco::Vertex::position().

compatibility() [5/5]

float VertexDistance::compatibility ( const VertexState &  vtx1, const VertexState &  vtx2  ) const

virtual

Definition at line 33 of file VertexDistance.cc.

                                                                                          {
  return compatibility(vtx1.position(), vtx1.error(), vtx2.position(), vtx2.error());
}

References VertexState::error(), and VertexState::position().

distance() [1/5]

virtual Measurement1D VertexDistance::distance ( const GlobalPoint &  vtx1Position, const GlobalError &  vtx1PositionError, const GlobalPoint &  vtx2Position, const GlobalError &  vtx2PositionError  ) const

protectedpure virtual

Implemented in VertexDistance3D, and VertexDistanceXY.

distance() [2/5]

Measurement1D VertexDistance::distance	(	const reco::Vertex &	vtx1,
		const reco::Vertex &	vtx2
	)		const

Definition at line 26 of file VertexDistance.cc.

                                                                                   {
  return distance(GlobalPoint(Basic3DVector<float>(vtx1.position())),
                  GlobalError(vtx1.covariance()),
                  GlobalPoint(Basic3DVector<float>(vtx2.position())),
                  GlobalError(vtx2.covariance()));
}

References reco::Vertex::covariance(), HLT_FULL_cff::distance, and reco::Vertex::position().

Referenced by IPTools::absoluteImpactParameter(), VertexCompatibleWithBeam::distanceToBeam(), and VertexCompatibleWithBeam::operator()().

distance() [3/5]

Measurement1D VertexDistance::distance	(	const reco::Vertex &	vtx1,
		const VertexState &	vtx2
	)		const

Definition at line 12 of file VertexDistance.cc.

                                                                                        {
  return distance(GlobalPoint(Basic3DVector<float>(vtx1.position())),
                  GlobalError(vtx1.covariance()),
                  vtx2.position(),
                  vtx2.error());
}

References reco::Vertex::covariance(), HLT_FULL_cff::distance, VertexState::error(), VertexState::position(), and reco::Vertex::position().

distance() [4/5]

Measurement1D VertexDistance::distance	(	const VertexState &	vtx1,
		const reco::Vertex &	vtx2
	)		const

Definition at line 19 of file VertexDistance.cc.

                                                                                        {
  return distance(vtx1.position(),
                  vtx1.error(),
                  GlobalPoint(Basic3DVector<float>(vtx2.position())),
                  GlobalError(vtx2.covariance()));
}

References reco::Vertex::covariance(), HLT_FULL_cff::distance, VertexState::error(), VertexState::position(), and reco::Vertex::position().

distance() [5/5]

Measurement1D VertexDistance::distance	(	const VertexState &	vtx1,
		const VertexState &	vtx2
	)		const

Definition at line 8 of file VertexDistance.cc.

                                                                                             {
  return distance(vtx1.position(), vtx1.error(), vtx2.position(), vtx2.error());
}

References HLT_FULL_cff::distance, VertexState::error(), and VertexState::position().

signedDistance()

virtual Measurement1D VertexDistance::signedDistance ( const reco::Vertex &  primVtx, const reco::Vertex &  secVtx, const GlobalVector &  momentum  ) const

pure virtual

The signed distance is computed using a vector from the primary to the secondary vertex and a given reference vector. for the 2D case: The sign is determined by the scalar product of the x,y component of the vector connecting the vertices and the reference vector: if the scalar product is greater than zero, the sign is +1, else -1

for the 3D case: Follows same approach, using all three components of the two vectors

Implemented in VertexDistance3D, and VertexDistanceXY.