#include <acts/blob/master/Core/include/Acts/Propagator/StraightLineStepper.hpp>

Collaboration diagram for Acts::StraightLineStepper::State:

Public Member Functions
	State ()=delete
	Delete the default constructor.

template<typename parameters_t >
	State (std::reference_wrapper< const GeometryContext > gctx, std::reference_wrapper< const MagneticFieldContext >, const parameters_t &par, NavigationDirection ndir=forward, double ssize=std::numeric_limits< double >::max(), double stolerance=s_onSurfaceTolerance)

Public Attributes
BoundToFreeMatrix	jacToGlobal = BoundToFreeMatrix::Zero()
	Jacobian from local to the global frame.

FreeMatrix	jacTransport = FreeMatrix::Identity()
	Pure transport jacobian part from runge kutta integration.

Jacobian	jacobian = Jacobian::Identity()
	The full jacobian of the transport entire transport.

FreeVector	derivative = FreeVector::Zero()
	The propagation derivative.

bool	covTransport = false
	Boolean to indiciate if you need covariance transport.

Covariance	cov = Covariance::Zero()

Vector3D	pos = Vector3D(0., 0., 0.)
	Global particle position.

Vector3D	dir = Vector3D(1., 0., 0.)
	Momentum direction (normalized)

double	p = 0.
	Momentum.

double	q = 0.
	Save the charge: neutral as default for SL stepper.

double	t = 0.
	Propagated time.

NavigationDirection	navDir
	Navigation direction, this is needed for searching.

double	pathAccumulated = 0.
	accummulated path length state

ConstrainedStep	stepSize = std::numeric_limits<double>::max()
	adaptive step size of the runge-kutta integration

double	previousStepSize = 0.

double	tolerance = s_onSurfaceTolerance
	The tolerance for the stepping.

std::reference_wrapper< const GeometryContext >	geoContext

Detailed Description

State for track parameter propagation

Definition at line 42 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 42 of file StraightLineStepper.hpp

Constructor & Destructor Documentation

Acts::StraightLineStepper::State::State ( )

delete

Delete the default constructor.

template<typename parameters_t >

Acts::StraightLineStepper::State::State	(	std::reference_wrapper< const GeometryContext >	gctx,
		std::reference_wrapper< const MagneticFieldContext >	,
		const parameters_t &	par,
		NavigationDirection	ndir = `forward`,
		double	ssize = `std::numeric_limits<double>::max()`,
		double	stolerance = `s_onSurfaceTolerance`
	)

inlineexplicit

Constructor from the initial track parameters

Template Parameters

parameters_t the Type of the track parameters

Parameters

[in]	gctx	is the context object for the geometery
[in]	mctx	is the context object for the magnetic field
[in]	par	The track parameters at start
[in]	ndir	is the navigation direction
[in]	ssize	is the (absolute) maximum step size
[in]	stolerance	is the stepping tolerance

Definition at line 57 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 57 of file StraightLineStepper.hpp

References cov, covTransport, dir, jacToGlobal, pos, and surface().

Here is the call graph for this function:

Member Data Documentation

Covariance Acts::StraightLineStepper::State::cov = Covariance::Zero()

Definition at line 96 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 96 of file StraightLineStepper.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::StraightLineStepper::boundState(), Acts::StraightLineStepper::covarianceTransport(), Acts::StraightLineStepper::curvilinearState(), State(), and Acts::StraightLineStepper::update().

bool Acts::StraightLineStepper::State::covTransport = false

Boolean to indiciate if you need covariance transport.

Definition at line 95 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 95 of file StraightLineStepper.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::StraightLineStepper::boundState(), Acts::StraightLineStepper::curvilinearState(), and State().

FreeVector Acts::StraightLineStepper::State::derivative = FreeVector::Zero()

The propagation derivative.

Definition at line 92 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 92 of file StraightLineStepper.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::StraightLineStepper::boundState(), Acts::StraightLineStepper::covarianceTransport(), and Acts::StraightLineStepper::curvilinearState().

Vector3D Acts::StraightLineStepper::State::dir = Vector3D(1., 0., 0.)

Momentum direction (normalized)

Definition at line 102 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 102 of file StraightLineStepper.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::StraightLineStepper::boundState(), Acts::StraightLineStepper::covarianceTransport(), Acts::StraightLineStepper::curvilinearState(), Acts::StraightLineStepper::direction(), State(), and Acts::StraightLineStepper::update().

std::reference_wrapper<const GeometryContext> Acts::StraightLineStepper::State::geoContext

Definition at line 129 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 129 of file StraightLineStepper.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::StraightLineStepper::boundState(), and Acts::StraightLineStepper::covarianceTransport().

Jacobian Acts::StraightLineStepper::State::jacobian = Jacobian::Identity()

The full jacobian of the transport entire transport.

Definition at line 89 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 89 of file StraightLineStepper.hpp

Referenced by Acts::StraightLineStepper::boundState(), Acts::StraightLineStepper::covarianceTransport(), and Acts::StraightLineStepper::curvilinearState().

BoundToFreeMatrix Acts::StraightLineStepper::State::jacToGlobal = BoundToFreeMatrix::Zero()

Jacobian from local to the global frame.

Definition at line 83 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 83 of file StraightLineStepper.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::StraightLineStepper::boundState(), Acts::StraightLineStepper::covarianceTransport(), Acts::StraightLineStepper::curvilinearState(), and State().

FreeMatrix Acts::StraightLineStepper::State::jacTransport = FreeMatrix::Identity()

Pure transport jacobian part from runge kutta integration.

Definition at line 86 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 86 of file StraightLineStepper.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::StraightLineStepper::boundState(), Acts::StraightLineStepper::covarianceTransport(), and Acts::StraightLineStepper::curvilinearState().

NavigationDirection Acts::StraightLineStepper::State::navDir

Navigation direction, this is needed for searching.

Definition at line 114 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 114 of file StraightLineStepper.hpp

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

double Acts::StraightLineStepper::State::p = 0.

Momentum.

Definition at line 105 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 105 of file StraightLineStepper.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::StraightLineStepper::boundState(), Acts::StraightLineStepper::covarianceTransport(), Acts::StraightLineStepper::curvilinearState(), Acts::StraightLineStepper::momentum(), and Acts::StraightLineStepper::update().

double Acts::StraightLineStepper::State::pathAccumulated = 0.

accummulated path length state

Definition at line 117 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 117 of file StraightLineStepper.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::StraightLineStepper::boundState(), and Acts::StraightLineStepper::curvilinearState().

Vector3D Acts::StraightLineStepper::State::pos = Vector3D(0., 0., 0.)

Global particle position.

Definition at line 99 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 99 of file StraightLineStepper.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::StraightLineStepper::boundState(), Acts::StraightLineStepper::covarianceTransport(), Acts::StraightLineStepper::curvilinearState(), Acts::StraightLineStepper::position(), State(), and Acts::StraightLineStepper::update().

double Acts::StraightLineStepper::State::previousStepSize = 0.

Definition at line 123 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 123 of file StraightLineStepper.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), and Acts::StraightLineStepper::setStepSize().

double Acts::StraightLineStepper::State::q = 0.

Save the charge: neutral as default for SL stepper.

Definition at line 108 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 108 of file StraightLineStepper.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::StraightLineStepper::boundState(), Acts::StraightLineStepper::charge(), Acts::StraightLineStepper::covarianceTransport(), and Acts::StraightLineStepper::curvilinearState().

ConstrainedStep Acts::StraightLineStepper::State::stepSize = std::numeric_limits<double>::max()

adaptive step size of the runge-kutta integration

Definition at line 120 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 120 of file StraightLineStepper.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::StraightLineStepper::outputStepSize(), Acts::StraightLineStepper::releaseStepSize(), and Acts::StraightLineStepper::setStepSize().

double Acts::StraightLineStepper::State::t = 0.

Propagated time.

Definition at line 111 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 111 of file StraightLineStepper.hpp

Referenced by Acts::Test::BOOST_AUTO_TEST_CASE(), Acts::StraightLineStepper::boundState(), Acts::StraightLineStepper::covarianceTransport(), Acts::StraightLineStepper::curvilinearState(), Acts::StraightLineStepper::time(), and Acts::StraightLineStepper::update().

double Acts::StraightLineStepper::State::tolerance = s_onSurfaceTolerance

The tolerance for the stepping.

Definition at line 126 of file StraightLineStepper.hpp.

View newest version in sPHENIX GitHub at line 126 of file StraightLineStepper.hpp

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

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

acts/blob/master/Core/include/Acts/Propagator/StraightLineStepper.hpp

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

Member Data Documentation