Trk::CurvilinearUVT Class Reference

simple class that constructs the curvilinear vectors curvU and curvV from a given momentum direction (must be unit vector). More...

#include <CurvilinearUVT.h>

Collaboration diagram for Trk::CurvilinearUVT:

Public Member Functions
	CurvilinearUVT (const Amg::Vector3D &dir)
	Create from Amg::Vector3D.
	CurvilinearUVT ()=default
const Amg::Vector3D &	curvU () const
	Access methods.
const Amg::Vector3D &	curvV () const
const Amg::Vector3D &	curvT () const

Private Attributes
Amg::Vector3D	m_curvU
	curvilinear U axis
Amg::Vector3D	m_curvV
	curvilinear V axis
Amg::Vector3D	m_curvT
	curvilinear T axis

Detailed Description

simple class that constructs the curvilinear vectors curvU and curvV from a given momentum direction (must be unit vector).

The curvilinear frame \( (\vec u, \vec v, \vec t) \) at each point \( m \) is constructed by:

• \( \vec t = \vec{curvT} \) ... momentum direction at \( m \)
• \( \vec u = \vec{curvU} = \frac{\vec t \times \vec z}{||\vec t \times \vec z||} \) ... with \( \vec z \) the global z-axis

• \( \vec v = \vec{curvV} = \vec t \times \fec u \) ... constructed so that frame is right-handed

  The picture shows the curvilinear frame for a straight line measurement

  Author

  Andre.nosp@m.as.S.nosp@m.alzbu.nosp@m.rger.nosp@m.@cern.nosp@m..ch

Definition at line 44 of file CurvilinearUVT.h.

Constructor & Destructor Documentation

CurvilinearUVT() [1/2]

Trk::CurvilinearUVT::CurvilinearUVT

(

const Amg::Vector3D &

dir

)

Create from Amg::Vector3D.

CurvilinearUVT() [2/2]

Trk::CurvilinearUVT::CurvilinearUVT ( )

default

Member Function Documentation

curvT()

const Amg::Vector3D & Trk::CurvilinearUVT::curvT

(

)

const

curvU()

const Amg::Vector3D & Trk::CurvilinearUVT::curvU

(

)

const

Access methods.

curvV()

const Amg::Vector3D & Trk::CurvilinearUVT::curvV

(

)

const

Member Data Documentation

m_curvT

Amg::Vector3D Trk::CurvilinearUVT::m_curvT

private

curvilinear T axis

Definition at line 61 of file CurvilinearUVT.h.

m_curvU

Amg::Vector3D Trk::CurvilinearUVT::m_curvU

private

curvilinear U axis

Definition at line 59 of file CurvilinearUVT.h.

m_curvV

Amg::Vector3D Trk::CurvilinearUVT::m_curvV

private

curvilinear V axis

Definition at line 60 of file CurvilinearUVT.h.

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

• CurvilinearUVT.h