#include <acts/blob/sPHENIX/Core/include/Acts/Propagator/CovarianceTransport.hpp>

Collaboration diagram for Acts::CovarianceCache:

Public Member Functions
	CovarianceCache ()=default
	Defaulted constructor, gives invalid cache.

	CovarianceCache (const GeometryContext &gctx, const Surface &surface, const Vector3 &position, const BoundVector &boundParameters, const BoundSquareMatrix &boundCovariance)

	CovarianceCache (const Vector3 &position, const Vector3 &direction, const BoundSquareMatrix &boundCovariance)

	CovarianceCache (const FreeVector &freeParameters, const FreeSquareMatrix &freeCovariance)

Public Attributes
bool	applyTransport = false
	Internal cache state, indicates correct setup.

const Surface *	atSurface = nullptr
	Internal cache state, at surface indication.

Vector3	atPosition = Vector3::Zero()
	Internal cache state, at position.

VariantCovariance	covariance
	Variant: the currently held covariance.

std::optional< BoundToFreeMatrix >	boundToFreeJacobian = std::nullopt
	Optional for starting from bound or curvilinear.

std::optional< ActsMatrix< 8, 7 > >	anglesToDirectionJacobian = std::nullopt
	Options for starting from free.

std::optional< ActsMatrix< 7, 8 > >	directionToAnglesJacobian = std::nullopt

FreeMatrix	freeTransportJacobian = FreeMatrix::Identity()
	Non-variant: the free transport jacobian.

FreeVector	freeToPathDerivatives = FreeVector::Zero()
	Non-variant: the free derivatives.

Detailed Description

Helper struct holding the necessary cache for the Covariance transport in various parametrisations.

Definition at line 30 of file CovarianceTransport.hpp.

View newest version in sPHENIX GitHub at line 30 of file CovarianceTransport.hpp

Constructor & Destructor Documentation

Acts::CovarianceCache::CovarianceCache ( )

default

Defaulted constructor, gives invalid cache.

Acts::CovarianceCache::CovarianceCache	(	const GeometryContext &	gctx,
		const Surface &	surface,
		const Vector3 &	position,
		const BoundVector &	boundParameters,
		const BoundSquareMatrix &	boundCovariance
	)

Constructor from bound & surface

Parameters

gctx	The current geometry context
surface	The surface of the bound representation
position	The position of the representation
boundParameters	The bound parameters at the surface
boundCovariance	The bound covariance to be propagated

This constructor will set the variant covariance type to a bound matrix, remember the surface & establish the jacobian between bound and free parametrisation.

Definition at line 13 of file CovarianceTransport.cpp.

View newest version in sPHENIX GitHub at line 13 of file CovarianceTransport.cpp

References boundToFreeJacobian, Acts::Surface::boundToFreeJacobian(), and covariance.

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Acts::CovarianceCache::CovarianceCache	(	const Vector3 &	position,
		const Vector3 &	direction,
		const BoundSquareMatrix &	boundCovariance
	)

Constructor from curvilinear

Parameters

position	The position of the representation
direction	The direction of at the representation
boundCovariance	The bound covariance to be propagated

This constructor will set the variant covariance type to a bound matrix, remember the surface & establish the jacobian between bound and free parametrisation.

Definition at line 23 of file CovarianceTransport.cpp.

View newest version in sPHENIX GitHub at line 23 of file CovarianceTransport.cpp

References boundToFreeJacobian, covariance, and Acts::detail::curvilinearToFreeJacobian().

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Acts::CovarianceCache::CovarianceCache	(	const FreeVector &	freeParameters,
		const FreeSquareMatrix &	freeCovariance
	)

Construction from free

Parameters

freeParameters	The free parameters
freeCovariance	The free covariance to be propagated

Definition at line 31 of file CovarianceTransport.cpp.

View newest version in sPHENIX GitHub at line 31 of file CovarianceTransport.cpp

References anglesToDirectionJacobian, Acts::detail::anglesToDirectionJacobian(), covariance, directionToAnglesJacobian, Acts::detail::directionToAnglesJacobian(), and Acts::eFreeDir0.

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Member Data Documentation

std::optional<ActsMatrix<8, 7> > Acts::CovarianceCache::anglesToDirectionJacobian = std::nullopt

Options for starting from free.

Definition at line 46 of file CovarianceTransport.hpp.

View newest version in sPHENIX GitHub at line 46 of file CovarianceTransport.hpp

Referenced by CovarianceCache(), Acts::transportCovarianceToBound(), Acts::transportCovarianceToCurvilinear(), and Acts::transportCovarianceToFree().

bool Acts::CovarianceCache::applyTransport = false

Internal cache state, indicates correct setup.

Definition at line 32 of file CovarianceTransport.hpp.

View newest version in sPHENIX GitHub at line 32 of file CovarianceTransport.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE().

Vector3 Acts::CovarianceCache::atPosition = Vector3::Zero()

Internal cache state, at position.

Definition at line 38 of file CovarianceTransport.hpp.

View newest version in sPHENIX GitHub at line 38 of file CovarianceTransport.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE().

const Surface* Acts::CovarianceCache::atSurface = nullptr

Internal cache state, at surface indication.

Definition at line 35 of file CovarianceTransport.hpp.

View newest version in sPHENIX GitHub at line 35 of file CovarianceTransport.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE().

std::optional<BoundToFreeMatrix> Acts::CovarianceCache::boundToFreeJacobian = std::nullopt

Optional for starting from bound or curvilinear.

Definition at line 44 of file CovarianceTransport.hpp.

View newest version in sPHENIX GitHub at line 44 of file CovarianceTransport.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), CovarianceCache(), Acts::transportCovarianceToBound(), Acts::transportCovarianceToCurvilinear(), and Acts::transportCovarianceToFree().

VariantCovariance Acts::CovarianceCache::covariance

Variant: the currently held covariance.

Definition at line 41 of file CovarianceTransport.hpp.

View newest version in sPHENIX GitHub at line 41 of file CovarianceTransport.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), CovarianceCache(), Acts::transportCovarianceToBound(), Acts::transportCovarianceToCurvilinear(), and Acts::transportCovarianceToFree().

std::optional<ActsMatrix<7, 8> > Acts::CovarianceCache::directionToAnglesJacobian = std::nullopt

Definition at line 47 of file CovarianceTransport.hpp.

View newest version in sPHENIX GitHub at line 47 of file CovarianceTransport.hpp

Referenced by CovarianceCache(), Acts::transportCovarianceToBound(), Acts::transportCovarianceToCurvilinear(), and Acts::transportCovarianceToFree().

FreeVector Acts::CovarianceCache::freeToPathDerivatives = FreeVector::Zero()

Non-variant: the free derivatives.

Definition at line 52 of file CovarianceTransport.hpp.

View newest version in sPHENIX GitHub at line 52 of file CovarianceTransport.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::transportCovarianceToBound(), and Acts::transportCovarianceToCurvilinear().

FreeMatrix Acts::CovarianceCache::freeTransportJacobian = FreeMatrix::Identity()

Non-variant: the free transport jacobian.

Definition at line 50 of file CovarianceTransport.hpp.

View newest version in sPHENIX GitHub at line 50 of file CovarianceTransport.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::transportCovarianceToBound(), Acts::transportCovarianceToCurvilinear(), and Acts::transportCovarianceToFree().

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

acts/blob/sPHENIX/Core/include/Acts/Propagator/CovarianceTransport.hpp
acts/blob/sPHENIX/Core/src/Propagator/CovarianceTransport.cpp

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

Member Data Documentation