Belle II Software  release-08-01-10
Public Member Functions | Static Public Member Functions | Static Private Member Functions | Static Private Attributes | Friends | List of all members
ReferenceFrame Class Referenceabstract
Packages » analysis

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

#include <ReferenceFrame.h>

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Public Member Functions

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

Static Public Member Functions

static const ReferenceFrame & GetCurrent ()
 Get current rest frame. More...
 

Static Private Member Functions

static void Push (const ReferenceFrame *frame)
 Push rest frame of given particle. More...
 
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.

27 {
28  if (m_reference_frames.empty()) {
29  static LabFrame _default;
30  return _default;
31  } else {
32  return *m_reference_frames.top();
33  }
34 }
Belle2::ReferenceFrame::m_reference_frames
static std::stack< const ReferenceFrame * > m_reference_frames
Stack of current rest frames.
Definition: ReferenceFrame.h:123

◆ getMomentum() [1/2]

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

Wrapper for particles.

Parameters
particleparticle
Returns
momentum 4-vector in reference frame

Definition at line 60 of file ReferenceFrame.h.

61  {
62  return getMomentum(particle->get4Vector());
63  }
Belle2::ReferenceFrame::getMomentum
virtual ROOT::Math::PxPyPzEVector getMomentum(const ROOT::Math::PxPyPzEVector &vector) const =0
Get momentum 4-vector in reference frame.

◆ getMomentum() [2/2]

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

Get momentum 4-vector in reference frame.

Parameters
vector4-vector from particle
Returns
momentum 4-vector in reference frame

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

◆ getMomentumErrorMatrix() [1/2]

virtual TMatrixFSym getMomentumErrorMatrix ( const Particle *  particle) const
inlinevirtual

Wrapper for particles.

Parameters
particleparticle
Returns
Covariance matrix in reference frame

Definition at line 77 of file ReferenceFrame.h.

◆ getMomentumErrorMatrix() [2/2]

virtual TMatrixFSym getMomentumErrorMatrix ( const TMatrixFSym &  matrix) const
pure virtual

Get Momentum error matrix in reference frame.

Parameters
matrixCovariance matrix of particle
Returns
Covariance matrix in reference frame

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

◆ 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.

◆ getVertex() [2/2]

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

Get vertex 3-vector in reference frame.

Parameters
vector3-vector from particle
Returns
3-vector in reference frame

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

◆ 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.

◆ getVertexErrorMatrix() [2/2]

virtual TMatrixFSym getVertexErrorMatrix ( const TMatrixFSym &  matrix) const
pure virtual

Get Vertex error matrix in reference frame.

Parameters
matrixCovariance matrix of particle
Returns
Covariance matrix in reference frame

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

◆ Push()

static void Push ( const ReferenceFrame *  frame)
inlinestaticprivate

Push rest frame of given particle.

Parameters
frameUse this reference frame

Definition at line 110 of file ReferenceFrame.h.

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