CbmLitRK4TrackExtrapolator Class Reference

#include <CbmLitRK4TrackExtrapolator.h>

Inheritance diagram for CbmLitRK4TrackExtrapolator:

Collaboration diagram for CbmLitRK4TrackExtrapolator:

Public Member Functions
	CbmLitRK4TrackExtrapolator (std::shared_ptr< CbmLitField > field)
virtual	~CbmLitRK4TrackExtrapolator ()
virtual LitStatus	Extrapolate (const CbmLitTrackParam *parIn, CbmLitTrackParam *parOut, litfloat zOut, std::vector< litfloat > *F)
	Track parameters extrapolation with calculation of transport matrix.
virtual LitStatus	Extrapolate (CbmLitTrackParam *par, litfloat zOut, std::vector< litfloat > *F)

Protected Member Functions
void	RK4Order (const std::vector< litfloat > &xIn, litfloat zIn, std::vector< litfloat > &xOut, litfloat zOut, std::vector< litfloat > &derivs) const
litfloat	CalcOut (litfloat in, const litfloat k[4]) const
void	TransportC (const std::vector< litfloat > &cIn, const std::vector< litfloat > &F, std::vector< litfloat > &cOut) const

Private Attributes
std::shared_ptr< CbmLitField >	fField

Detailed Description

Definition at line 27 of file CbmLitRK4TrackExtrapolator.h.

Constructor & Destructor Documentation

CbmLitRK4TrackExtrapolator()

CbmLitRK4TrackExtrapolator::CbmLitRK4TrackExtrapolator

(

std::shared_ptr< CbmLitField >

field

)

CbmLitRK4TrackExtrapolator.cxx

Author

A.Lebedev alebe.nosp@m.dev@.nosp@m.jinr..nosp@m.ru

Since

2007

Definition at line 17 of file CbmLitRK4TrackExtrapolator.cxx.

~CbmLitRK4TrackExtrapolator()

CbmLitRK4TrackExtrapolator::~CbmLitRK4TrackExtrapolator ( )

virtual

Definition at line 19 of file CbmLitRK4TrackExtrapolator.cxx.

Member Function Documentation

CalcOut()

litfloat CbmLitRK4TrackExtrapolator::CalcOut ( litfloat in, const litfloat k[4] ) const

protected

Definition at line 234 of file CbmLitRK4TrackExtrapolator.cxx.

Referenced by RK4Order().

Extrapolate() [1/2]

LitStatus CbmLitRK4TrackExtrapolator::Extrapolate ( CbmLitTrackParam * par, litfloat zOut, std::vector< litfloat > * F )

virtual

brief Track parameters extrapolation with calculation of transport matrix.

Parameters

[in,out]	par	Pointer to initial and output track parameters.
[in]	zOut	Z position to extrapolate to [cm].
[out]	F	Output transport matrix. If F == NULL than transport matrix is not calculated.

Returns

Extrapolation status.

Implements CbmLitTrackExtrapolator.

Definition at line 28 of file CbmLitRK4TrackExtrapolator.cxx.

References CbmLitTrackParam::GetCovMatrix(), CbmLitTrackParam::GetStateVector(), CbmLitTrackParam::GetZ(), kLITSUCCESS, RK4Order(), CbmLitTrackParam::SetCovMatrix(), CbmLitTrackParam::SetStateVector(), CbmLitTrackParam::SetZ(), and TransportC().

Extrapolate() [2/2]

LitStatus CbmLitRK4TrackExtrapolator::Extrapolate ( const CbmLitTrackParam * parIn, CbmLitTrackParam * parOut, litfloat zOut, std::vector< litfloat > * F )

virtual

Track parameters extrapolation with calculation of transport matrix.

Parameters

[in]	parIn	Pointer to initial track parameters.
[out]	parOut	Pointer to output track parameters.
[in]	zOut	Z position to extrapolate to [cm].
[out]	F	Output transport matrix. If F == NULL than transport matrix is not calculated.

Returns

Extrapolation status.

Implements CbmLitTrackExtrapolator.

Definition at line 21 of file CbmLitRK4TrackExtrapolator.cxx.

References Extrapolate().

Referenced by Extrapolate().

RK4Order()

void CbmLitRK4TrackExtrapolator::RK4Order ( const std::vector< litfloat > & xIn, litfloat zIn, std::vector< litfloat > & xOut, litfloat zOut, std::vector< litfloat > & derivs ) const

protected

Definition at line 53 of file CbmLitRK4TrackExtrapolator.cxx.

References CalcOut(), fField, CbmLitTrackParam::fSpeedOfLight, and x.

Referenced by Extrapolate().

TransportC()

void CbmLitRK4TrackExtrapolator::TransportC ( const std::vector< litfloat > & cIn, const std::vector< litfloat > & F, std::vector< litfloat > & cOut ) const

protected

Definition at line 261 of file CbmLitRK4TrackExtrapolator.cxx.

References MultiplyMatrices(), and TransposeMatrix().

Referenced by Extrapolate().

Member Data Documentation

fField

std::shared_ptr<CbmLitField> CbmLitRK4TrackExtrapolator::fField

private

Definition at line 68 of file CbmLitRK4TrackExtrapolator.h.

Referenced by RK4Order().

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

• CbmLitRK4TrackExtrapolator.h
• CbmLitRK4TrackExtrapolator.cxx