ActsExamples::Contextual::ExternallyAlignedDetectorElement Class Reference

#include <acts/blob/sPHENIX/Examples/Detectors/ContextualDetector/include/ActsExamples/ContextualDetector/ExternallyAlignedDetectorElement.hpp>

Inheritance diagram for ActsExamples::Contextual::ExternallyAlignedDetectorElement:

Collaboration diagram for ActsExamples::Contextual::ExternallyAlignedDetectorElement:

Classes
struct	AlignmentStore
class	ContextType

Public Member Functions
const Acts::Transform3 &	transform (const Acts::GeometryContext &gctx) const override
Public Member Functions inherited from ActsExamples::Generic::GenericDetectorElement
	GenericDetectorElement (const Identifier identifier, std::shared_ptr< const Acts::Transform3 > transform, std::shared_ptr< const Acts::PlanarBounds > pBounds, double thickness, std::shared_ptr< const Acts::ISurfaceMaterial > material=nullptr, std::shared_ptr< const Acts::DigitizationModule > digitizationModule=nullptr)
	GenericDetectorElement (const Identifier identifier, std::shared_ptr< const Acts::Transform3 > transform, std::shared_ptr< const Acts::DiscBounds > dBounds, double thickness, std::shared_ptr< const Acts::ISurfaceMaterial > material=nullptr, std::shared_ptr< const Acts::DigitizationModule > digitizationModule=nullptr)
Identifier	identifier () const final
	Identifier.
const Acts::Transform3 &	transform (const Acts::GeometryContext &gctx) const override
const Acts::Surface &	surface () const override
	Return surface associated with this detector element.
Acts::Surface &	surface () override
	Non-cost access to surface associated with this detector element.
void	assignIdentifier (const Identifier &identifier)
	Set the identifier after construction (sometimes needed)
double	thickness () const override
	The maximal thickness of the detector element wrt normal axis.
const std::shared_ptr< const Acts::DigitizationModule >	digitizationModule () const override
	Retrieve the DigitizationModule.

Additional Inherited Members
Public Types inherited from ActsExamples::Generic::GenericDetectorElement
using	ContextType = Acts::GeometryContext
	Broadcast the ContextType.

Detailed Description

This is a lightweight type of detector element, it simply implements the base class.

The ExternallyAlignedDetectorElement demonstrates how a GeometryContext can be used if it carries the entire set of Transforms through the program flow.

The nominal transform is only used to once create the alignment store and then in a contextual call the actual detector element position is taken from the alignment Store.

In this simple implementation, it does rely on the Identifier to be orderded from 0 to N-1, as the identifier is simply taken as a vector index for the alignment store

Definition at line 41 of file ExternallyAlignedDetectorElement.hpp.

View newest version in sPHENIX GitHub at line 41 of file ExternallyAlignedDetectorElement.hpp

Member Function Documentation

const Acts::Transform3 & ActsExamples::Contextual::ExternallyAlignedDetectorElement::transform ( const Acts::GeometryContext &  gctx ) const

inlineoverridevirtual

Return local to global transform associated with this identifier

Parameters

gctx	The current geometry context object, e.g. alignment

Note

this is called from the surface().transform(gctx)

Implements Acts::DetectorElementBase.

Definition at line 68 of file ExternallyAlignedDetectorElement.hpp.

View newest version in sPHENIX GitHub at line 68 of file ExternallyAlignedDetectorElement.hpp

References assert, ActsExamples::Generic::GenericDetectorElement::identifier(), and Acts::Test::transform.

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

• acts/blob/sPHENIX/Examples/Detectors/ContextualDetector/include/ActsExamples/ContextualDetector/ExternallyAlignedDetectorElement.hpp