ReferenceFrame Class Reference

Abstract base class of all reference frames. More...

#include <ReferenceFrame.h>

Inheritance diagram for ReferenceFrame:

Public Member Functions
virtual ROOT::Math::XYZVector	getVertex (const ROOT::Math::XYZVector &vector) const =0
	Get vertex 3-vector in reference frame.
virtual ROOT::Math::XYZVector	getVertex (const Particle *particle) const
	Wrapper for particles.
virtual ROOT::Math::PxPyPzEVector	getMomentum (const ROOT::Math::PxPyPzEVector &vector) const =0
	Get momentum 4-vector in reference frame.
virtual ROOT::Math::PxPyPzEVector	getMomentum (const Particle *particle) const
	Wrapper for particles.
virtual TMatrixFSym	getMomentumErrorMatrix (const TMatrixFSym &matrix) const =0
	Get Momentum error matrix in reference frame.
virtual TMatrixFSym	getMomentumErrorMatrix (const Particle *particle) const
	Wrapper for particles.
virtual TMatrixFSym	getVertexErrorMatrix (const TMatrixFSym &matrix) const =0
	Get Vertex error matrix in reference frame.
virtual TMatrixFSym	getVertexErrorMatrix (const Particle *particle) const
	Wrapper for particles.

Static Public Member Functions
static const ReferenceFrame &	GetCurrent ()
	Get current rest frame.

Static Private Member Functions
static void	Push (const ReferenceFrame *frame)
	Push rest frame of given particle.
static void	Pop ()
	Pop current rest frame.

Static Private Attributes
static std::stack< const ReferenceFrame * >	m_reference_frames
	Stack of current rest frames.

Friends
template<class T>
class	UseReferenceFrame

Detailed Description

Abstract base class of all reference frames.

Definition at line 29 of file ReferenceFrame.h.

Member Function Documentation

GetCurrent()

const ReferenceFrame & GetCurrent ( )

static

Get current rest frame.

Returns

RestFrame

Definition at line 26 of file ReferenceFrame.cc.

{
  if (m_reference_frames.empty()) {
    static LabFrame _default;
    return _default;
  } else {
    return *m_reference_frames.top();
  }
}

getMomentum() [1/2]

virtual ROOT::Math::PxPyPzEVector getMomentum ( const Particle * particle ) const

inlinevirtual

Wrapper for particles.

Parameters

particle

particle

Returns

momentum 4-vector in reference frame

Definition at line 60 of file ReferenceFrame.h.

    {
      return getMomentum(particle->get4Vector());
    }

getMomentum() [2/2]

virtual ROOT::Math::PxPyPzEVector getMomentum ( const ROOT::Math::PxPyPzEVector & vector ) const

pure virtual

Get momentum 4-vector in reference frame.

Parameters

vector

4-vector from particle

Returns

momentum 4-vector in reference frame

Implemented in CMSFrame, CMSRotationFrame, LabFrame, RestFrame, and RotationFrame.

getMomentumErrorMatrix() [1/2]

virtual TMatrixFSym getMomentumErrorMatrix ( const Particle * particle ) const

inlinevirtual

Wrapper for particles.

Parameters

particle

particle

Returns

Covariance matrix in reference frame

Definition at line 77 of file ReferenceFrame.h.

    {
      return getMomentumErrorMatrix(particle->getMomentumErrorMatrix());
    }

getMomentumErrorMatrix() [2/2]

virtual TMatrixFSym getMomentumErrorMatrix ( const TMatrixFSym & matrix ) const

pure virtual

Get Momentum error matrix in reference frame.

Parameters

matrix

Covariance matrix of particle

Returns

Covariance matrix in reference frame

Implemented in CMSFrame, CMSRotationFrame, LabFrame, RestFrame, and RotationFrame.

getVertex() [1/2]

virtual ROOT::Math::XYZVector getVertex ( const Particle * particle ) const

inlinevirtual

Wrapper for particles.

Parameters

particle

Returns

3-vector in reference frame

Definition at line 43 of file ReferenceFrame.h.

    {
      return getVertex(particle->getVertex());
    }

getVertex() [2/2]

virtual ROOT::Math::XYZVector getVertex ( const ROOT::Math::XYZVector & vector ) const

pure virtual

Get vertex 3-vector in reference frame.

Parameters

vector

3-vector from particle

Returns

3-vector in reference frame

Implemented in CMSFrame, CMSRotationFrame, LabFrame, RestFrame, and RotationFrame.

getVertexErrorMatrix() [1/2]

virtual TMatrixFSym getVertexErrorMatrix ( const Particle * particle ) const

inlinevirtual

Wrapper for particles.

Parameters

particle

Returns

Covariance matrix in reference frame

Definition at line 94 of file ReferenceFrame.h.

    {
      return getVertexErrorMatrix(particle->getVertexErrorMatrix());
    }

getVertexErrorMatrix() [2/2]

virtual TMatrixFSym getVertexErrorMatrix ( const TMatrixFSym & matrix ) const

pure virtual

Get Vertex error matrix in reference frame.

Parameters

matrix

Covariance matrix of particle

Returns

Covariance matrix in reference frame

Implemented in CMSFrame, CMSRotationFrame, LabFrame, RestFrame, and RotationFrame.

Pop()

static void Pop ( )

inlinestaticprivate

Pop current rest frame.

Definition at line 118 of file ReferenceFrame.h.

    {
      m_reference_frames.pop();
    }

Push()

static void Push ( const ReferenceFrame * frame )

inlinestaticprivate

Push rest frame of given particle.

Parameters

frame

Use this reference frame

Definition at line 110 of file ReferenceFrame.h.

    {
      m_reference_frames.push(frame);
    }

Friends And Related Symbol Documentation

UseReferenceFrame

template<class T>

friend class UseReferenceFrame

friend

Definition at line 126 of file ReferenceFrame.h.

Member Data Documentation

m_reference_frames

std::stack< const ReferenceFrame * > m_reference_frames

staticprivate

Stack of current rest frames.

Definition at line 123 of file ReferenceFrame.h.

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

• analysis/utility/include/ReferenceFrame.h
• analysis/utility/src/ReferenceFrame.cc