Acts::JsonDetectorElement Class Reference

A implementation of a detector element, that is constructed from a JSON description of a surface. More...

#include <ActsPlugins/Json/JsonDetectorElement.hpp>

Inheritance diagram for Acts::JsonDetectorElement:

Collaboration diagram for Acts::JsonDetectorElement:

Public Member Functions
	JsonDetectorElement (const nlohmann::json &jSurface, double thickness)
	Constructor from JSON surface description.
bool	isSensitive () const override
	Returns whether the placement corresponds to a surface on which the measurements from the experiment are represented, i.e.
const Transform3 &	localToGlobalTransform (const GeometryContext &gctx) const override
	Return the transform for this detector element.
const Surface &	surface () const override
	Return const reference to the surface.
Surface &	surface () override
	Return mutable reference to the surface.
double	thickness () const
	Return the thickness of the detector element.
Public Member Functions inherited from Acts::SurfacePlacementBase
virtual	~SurfacePlacementBase ()=default
	Virtual default constructor.

Detailed Description

A implementation of a detector element, that is constructed from a JSON description of a surface.

The idea behind this is that it helps importing whole tracking geometries from JSON files. In some parts of the codebase, the existence of a detector element associated to a surface has a specific meaning (e.g., flags surfaces as sensitive).

Constructor & Destructor Documentation

JsonDetectorElement()

Acts::JsonDetectorElement::JsonDetectorElement	(	const nlohmann::json &	jSurface,
		double	thickness )

Constructor from JSON surface description.

Parameters

jSurface	JSON object describing the surface
thickness	Thickness of the detector element

Member Function Documentation

isSensitive()

bool Acts::JsonDetectorElement::isSensitive ( ) const

overridevirtual

Returns whether the placement corresponds to a surface on which the measurements from the experiment are represented, i.e.

it is

Returns

True if this is a sensitive surface

Implements Acts::SurfacePlacementBase.

localToGlobalTransform()

const Transform3 & Acts::JsonDetectorElement::localToGlobalTransform ( const GeometryContext & gctx ) const

overridevirtual

Return the transform for this detector element.

Parameters

gctx	Geometry context (unused for this implementation)

Returns

Transform matrix for this detector element

Implements Acts::SurfacePlacementBase.

surface() [1/2]

const Surface & Acts::JsonDetectorElement::surface ( ) const

overridevirtual

Return const reference to the surface.

Returns

Const reference to the associated surface

Implements Acts::SurfacePlacementBase.

surface() [2/2]

Surface & Acts::JsonDetectorElement::surface ( )

overridevirtual

Return mutable reference to the surface.

Returns

Mutable reference to the associated surface

Implements Acts::SurfacePlacementBase.

thickness()

double Acts::JsonDetectorElement::thickness

(

)

const

Return the thickness of the detector element.

Returns

Thickness value