InDet::BeamSpotData Class Reference

#include <BeamSpotData.h>

Collaboration diagram for InDet::BeamSpotData:

Public Member Functions
	BeamSpotData (int status, float posX, float posY, float posZ, float sigmaX, float sigmaY, float sigmaZ, float tiltX, float tiltY, float sigmaXY)
	BeamSpotData ()=delete
const Amg::Vector3D &	beamPos () const noexcept
float	beamSigma (int i) const noexcept
	Returns the beam sigma for the i-th error matrix element. More...
float	beamSigmaXY () const noexcept
float	beamTilt (int i) const noexcept
	Returns the beam sigma for the i+3-th error matrix element (the 'tilt') More...
int	beamStatus () const noexcept
const Trk::RecVertex &	beamVtx () const noexcept

Private Attributes
int	m_status
std::array< float, 6 >	m_errPar
Amg::Vector3D	m_beamPos
Trk::RecVertex	m_vertex

Detailed Description

Definition at line 19 of file BeamSpotData.h.

Constructor & Destructor Documentation

BeamSpotData() [1/2]

InDet::BeamSpotData::BeamSpotData	(	int	status,
		float	posX,
		float	posY,
		float	posZ,
		float	sigmaX,
		float	sigmaY,
		float	sigmaZ,
		float	tiltX,
		float	tiltY,
		float	sigmaXY
	)

Definition at line 13 of file BeamSpotData.cxx.

                                                            :
    m_status { status },
    m_errPar { sigmaX, sigmaY, sigmaZ, tiltX, tiltY, sigmaXY },
    m_beamPos { posX, posY, posZ }
  {  
#ifndef SIMULATIONBASE
    float sigmaX_tilt = std::tan(tiltX) * sigmaZ;
    float sigmaY_tilt = std::tan(tiltY) * sigmaZ;
    float sigmaX_all = std::sqrt(sigmaX*sigmaX + sigmaX_tilt*sigmaX_tilt);
    float sigmaY_all = std::sqrt(sigmaY*sigmaY + sigmaY_tilt*sigmaY_tilt);
    Amg::MatrixX beamErr(3, 3);
    beamErr.setZero();
    beamErr.fillSymmetric(0, 0, sigmaX_all*sigmaX_all);
    beamErr.fillSymmetric(0, 1, sigmaXY);
    beamErr.fillSymmetric(1, 1, sigmaY_all*sigmaY_all);
    beamErr.fillSymmetric(0, 2, std::tan(tiltX)*sigmaZ*sigmaZ);
    beamErr.fillSymmetric(1, 2, std::tan(tiltY)*sigmaZ*sigmaZ);
    beamErr.fillSymmetric(2, 2, sigmaZ*sigmaZ);
    m_vertex = Trk::RecVertex(m_beamPos, beamErr);
#endif
  }

BeamSpotData() [2/2]

InDet::BeamSpotData::BeamSpotData ( )

delete

Member Function Documentation

beamPos()

const Amg::Vector3D & InDet::BeamSpotData::beamPos ( ) const

inlinenoexcept

Definition at line 68 of file BeamSpotData.h.

{ return m_beamPos; }

beamSigma()

float InDet::BeamSpotData::beamSigma ( int  i ) const

inlinenoexcept

Returns the beam sigma for the i-th error matrix element.

Returns

The matrix element as float

Parameters

i	the requested index

Definition at line 70 of file BeamSpotData.h.

{ return m_errPar[i]; }

beamSigmaXY()

float InDet::BeamSpotData::beamSigmaXY ( ) const

inlinenoexcept

Definition at line 72 of file BeamSpotData.h.

{ return m_errPar[5]; }

beamStatus()

int InDet::BeamSpotData::beamStatus ( ) const

inlinenoexcept

Definition at line 76 of file BeamSpotData.h.

{ return m_status; }

beamTilt()

float InDet::BeamSpotData::beamTilt ( int  i ) const

inlinenoexcept

Returns the beam sigma for the i+3-th error matrix element (the 'tilt')

Returns

The (i + 3)th element as float

Parameters

i	the requested index after the addition of 3

Definition at line 74 of file BeamSpotData.h.

{ return m_errPar[3+i]; }

beamVtx()

const Trk::RecVertex & InDet::BeamSpotData::beamVtx ( ) const

inlinenoexcept

Definition at line 79 of file BeamSpotData.h.

{ return m_vertex; }

Member Data Documentation

m_beamPos

Amg::Vector3D InDet::BeamSpotData::m_beamPos

private

Definition at line 60 of file BeamSpotData.h.

m_errPar

std::array<float, 6> InDet::BeamSpotData::m_errPar

private

Definition at line 58 of file BeamSpotData.h.

m_status

int InDet::BeamSpotData::m_status

private

Definition at line 56 of file BeamSpotData.h.

m_vertex

Trk::RecVertex InDet::BeamSpotData::m_vertex

private

Definition at line 63 of file BeamSpotData.h.

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

• BeamSpotData.h
• BeamSpotData.cxx