Acts::IVolumeLookup Class Reference

Immutable point-to-volume lookup policy owned by a TrackingVolume. More...

#include <Acts/Geometry/IVolumeLookup.hpp>

Inheritance diagram for Acts::IVolumeLookup:

Public Member Functions
virtual const TrackingVolume *	findLowest (const GeometryContext &gctx, const Vector3 &position, double tolerance) const =0
	Find the lowest containing volume, or nullptr outside the bound root volume.

Detailed Description

Immutable point-to-volume lookup policy owned by a TrackingVolume.

Implementations must preserve lowestTrackingVolume containment, tolerance, first-matching-sibling precedence and parent fallback semantics. Referenced volumes must outlive the policy and retain their addresses. Queries must support concurrent readers; install policies before concurrent use.

Member Function Documentation

findLowest()

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

pure virtual

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

Respect explicit descendant lookups as delegation boundaries.

Parameters

gctx	Geometry context for containment checks
position	Global query position
tolerance	Containment tolerance

Returns

Containing tracking volume

Implemented in Acts::LinearVolumeLookup, and Acts::RzGridVolumeLookup.