#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 VertexState &, const VertexState &) const

virtual float	compatibility (const reco::Vertex &, const VertexState &) const

virtual float	compatibility (const VertexState &, const reco::Vertex &) const

Measurement1D	distance (const reco::Vertex &, const reco::Vertex &) const

Measurement1D	distance (const VertexState &, const VertexState &) const

Measurement1D	distance (const reco::Vertex &, const VertexState &) const

Measurement1D	distance (const VertexState &, const reco::Vertex &) 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

virtual VertexDistance::~VertexDistance ( )

inlinevirtual

Definition at line 19 of file VertexDistance.h.

References clone(), compatibility(), distance(), and signedDistance().

19 {}

Member Function Documentation

virtual VertexDistance* VertexDistance::clone ( ) const

pure virtual

Implemented in VertexDistance3D, and VertexDistanceXY.

Referenced by ~VertexDistance().

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

virtual

Definition at line 68 of file VertexDistance.cc.

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

Referenced by VertexDistanceXY::clone(), and ~VertexDistance().

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

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

virtual

Definition at line 44 of file VertexDistance.cc.

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

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

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

virtual

Definition at line 51 of file VertexDistance.cc.

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

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

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

virtual

Definition at line 59 of file VertexDistance.cc.

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

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

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

protectedpure virtual

Implemented in VertexDistance3D, and VertexDistanceXY.

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

Definition at line 35 of file VertexDistance.cc.

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

Referenced by IPTools::absoluteImpactParameter(), VertexDistanceXY::clone(), VertexDistance3D::clone(), VertexCompatibleWithBeam::distanceToBeam(), VertexCompatibleWithBeam::operator()(), and ~VertexDistance().

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

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

Definition at line 9 of file VertexDistance.cc.

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

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

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

Definition at line 16 of file VertexDistance.cc.

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

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

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

Definition at line 25 of file VertexDistance.cc.

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

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

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

protectedpure virtual

Implemented in VertexDistance3D, and VertexDistanceXY.

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.

Referenced by ~VertexDistance().

Public Member Functions

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation