Built-in RZ grid spatial index. More...

#include <Acts/Geometry/RzGridVolumeLookup.hpp>

Inheritance diagram for Acts::RzGridVolumeLookup:

Collaboration diagram for Acts::RzGridVolumeLookup:

Classes
struct	Config
	Serializable construction parameters; assignments are rebuilt from volumes. More...

Public Member Functions
	RzGridVolumeLookup (const GeometryContext &gctx, const TrackingVolume &world, const Config &config, const Logger &logger=getDummyLogger())
	Build an immutable index over a finalized subtree.
const Config &	config () const
	Return construction parameters for serialization.
const TrackingVolume *	findLowest (const GeometryContext &gctx, const Vector3 &position, double tolerance) const override
	Find the lowest containing volume, or nullptr outside the bound root volume.

Detailed Description

Built-in RZ grid spatial index.

Construct after geometry closure, once bounds, hierarchy and descendant policies are finalized; prefer installing through a Blueprint or StaticBlueprintNode lookup factory. Rebuild after changing volume bounds, transforms, hierarchy or descendant lookup policies. Indexes the full subtree, stopping at explicitly configured descendant lookups. Child volumes must be contained within their parents. Unsupported bounds are checked linearly alongside indexed candidates.

Constructor & Destructor Documentation

◆ RzGridVolumeLookup()

Acts::RzGridVolumeLookup::RzGridVolumeLookup	(	const GeometryContext &	gctx,
		const TrackingVolume &	world,
		const Config &	config,
		const Logger &	logger = getDummyLogger() )

Build an immutable index over a finalized subtree.

Parameters

gctx	Construction context
world	Root of the indexed subtree
config	Construction settings
logger	Construction diagnostics

Exceptions

std::invalid_argument For invalid configuration or Gen1 storage (confined layers/volumes or dense volumes) encountered in the indexed scope.

Member Function Documentation

◆ config()

const Config & Acts::RzGridVolumeLookup::config ( ) const

Return construction parameters for serialization.

Returns: Construction settings

◆ findLowest()

const TrackingVolume * Acts::RzGridVolumeLookup::findLowest	(	const GeometryContext &	gctx,
		const Vector3 &	position,
		double	tolerance ) const

overridevirtual

Find the lowest containing volume, or nullptr outside the bound root volume.

Respect explicit descendant lookups as delegation boundaries.