Nested State struct. More...

#include <Acts/Propagator/Navigator.hpp>

Collaboration diagram for Acts::Navigator::State:

Public Member Functions
	State (const Options &options_)
	Constructor with navigation options.
NavigationTarget &	navBoundary ()
	Get reference to current navigation boundary.
NavigationTarget &	navCandidate ()
	Get reference to current navigation candidate.
NavigationTarget &	navLayer ()
	Get reference to current navigation layer.
NavigationTarget &	navSurface ()
	Get reference to current navigation surface.
void	resetAfterLayerSwitch ()
	Reset navigation state after switching layers.
void	resetAfterVolumeSwitch ()
	Reset navigation state after switching volumes.
void	resetForRenavigation ()
	Completely reset navigation state to initial conditions.

Public Attributes
const Layer *	currentLayer = nullptr
	Current layer during navigation.
const Surface *	currentSurface = nullptr
	Current surface during navigation.
const TrackingVolume *	currentVolume = nullptr
	Current volume during navigation.
std::vector< std::pair< const Surface *, bool > >	freeCandidates {}
	Free candidates not part of the tracking geometry.
std::vector< const Surface * >	freeSurfaces
	Surfaces that are not part of the tracking geometry.
NavigationBoundaries	navBoundaries = {}
	the vector of boundary surfaces to work through
std::optional< std::size_t >	navBoundaryIndex
	the current boundary index of the navigation state
std::optional< std::size_t >	navCandidateIndex
	the current candidate index into the stream's candidates
double	navCandidatesFarLimit = std::numeric_limits<double>::max()
	far limit applied to the stream candidates, set during candidate resolution (options.farLimit, or tightened to the last portal when free candidates were appended without a selector)
bool	navigationBreak = false
	Flag to break navigation loop.
Stage	navigationStage = Stage::initial
	Current navigation stage in the state machine.
std::optional< std::size_t >	navLayerIndex
	the current layer index of the navigation state
NavigationLayers	navLayers = {}
	the vector of navigation layers to work through
std::optional< std::size_t >	navSurfaceIndex
	the current surface index of the navigation state
NavigationSurfaces	navSurfaces = {}
	the vector of navigation surfaces to work through
Options	options
	Navigation options configuration.
bool	policyStateIsDefault = true
	Whether the current volume's policy state carries no validity constraint.
NavigationPolicyStateManager	policyStateManager
	Management of policy state allocation and deallocation.
const Layer *	startLayer = nullptr
	Layer where the navigation started.
const Surface *	startSurface = nullptr
	Surface where the navigation started.
const TrackingVolume *	startVolume = nullptr
	Volume where the navigation started.
NavigatorStatistics	statistics
	Statistics collection for navigation performance.
NavigationStream	stream
	Stream for navigation debugging and monitoring.
const Surface *	targetSurface = nullptr
	Target surface for navigation.

Detailed Description

Nested State struct.

It acts as an internal state which is created for every propagation and meant to keep thread-local navigation information.

Constructor & Destructor Documentation

◆ State()

Acts::Navigator::State::State ( const Options & options_ )

explicit

Constructor with navigation options.

Parameters

options_ The navigation options for this state

Member Function Documentation

◆ navBoundary()

NavigationTarget & Acts::Navigator::State::navBoundary ( )

Get reference to current navigation boundary.

Returns: Reference to current boundary intersection

◆ navCandidate()

NavigationTarget & Acts::Navigator::State::navCandidate ( )

Get reference to current navigation candidate.

Returns: Reference to current boundary intersection

◆ navLayer()

NavigationTarget & Acts::Navigator::State::navLayer ( )

Get reference to current navigation layer.

Returns: Reference to current layer intersection

◆ navSurface()

NavigationTarget & Acts::Navigator::State::navSurface ( )

Get reference to current navigation surface.

Returns: Reference to current navigation target

Member Data Documentation

◆ freeCandidates

std::vector<std::pair<const Surface*, bool> > Acts::Navigator::State::freeCandidates {}

Free candidates not part of the tracking geometry.

and a boolean indicating whether the surface has already been reached during propagation

◆ policyStateIsDefault

bool Acts::Navigator::State::policyStateIsDefault = true

Whether the current volume's policy state carries no validity constraint.

Sourced from INavigationPolicy::isStateless() (probed once at construction, fixed thereafter) and cached at each volume transition, so the per-step checks read this local bool instead of chasing the policy pointer or re-deriving defaultness from the type-erased state.

Public Member Functions

Public Attributes