A purely intersection based material assigner on a trial and error basis. More...

Inheritance diagram for Acts::IntersectionMaterialAssigner:

Collaboration diagram for Acts::IntersectionMaterialAssigner:

Classes
struct	Config
	Nested configuration struct. More...

Public Member Functions
	IntersectionMaterialAssigner (const Config &cfg, std::unique_ptr< const Logger > mlogger=getDefaultLogger("IntersectionMaterialAssigner", Logging::INFO))
	Construct with the configuration.
std::pair< std::vector< IAssignmentFinder::SurfaceAssignment >, std::vector< IAssignmentFinder::VolumeAssignment > >	assignmentCandidates (const GeometryContext &gctx, const MagneticFieldContext &mctx, const Vector3 &position, const Vector3 &direction) const final
	Method for generating assignment candidates for the material interaction assignment to surfaces or volumes.
Public Member Functions inherited from Acts::IAssignmentFinder
virtual	~IAssignmentFinder ()=default
	Virtual destructor.

Detailed Description

A purely intersection based material assigner on a trial and error basis.

This is to be used if the navigation of the propagator is not available or not reliable, or simply for cross-checking the results.

Note: that differently to the PropagatorMaterialAssigner, this assigner needs to be preconditioned with the surfaces and volumes that are tested for candidate inclusion.

In a large-n material interaction scenario, this is not the most efficient

Constructor & Destructor Documentation

Acts::IntersectionMaterialAssigner::IntersectionMaterialAssigner	(	const Config &	cfg,
		std::unique_ptr< const Logger >	mlogger = getDefaultLogger("IntersectionMaterialAssigner", Logging::INFO) )

explicit

Construct with the configuration.

Parameters

cfg	is the configuration struct
mlogger	is the logger

std::pair< std::vector< IAssignmentFinder::SurfaceAssignment >, std::vector< IAssignmentFinder::VolumeAssignment > > Acts::IntersectionMaterialAssigner::assignmentCandidates	(	const GeometryContext &	gctx,
		const MagneticFieldContext &	mctx,
		const Vector3 &	position,
		const Vector3 &	direction ) const

finalvirtual

Method for generating assignment candidates for the material interaction assignment to surfaces or volumes.

Parameters

gctx	is the geometry context
mctx	is the magnetic field context
position	is the position of the initial ray
direction	is the direction of initial ray