#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.

References fField.

◆ ~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 F, 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(), and F.

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