Class Acts::TrackingGeometry¶
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class TrackingGeometry¶
The TrackingGeometry class is the owner of the constructed TrackingVolumes.
It enables both, a global search for an asociatedVolume (respectively, if existing, a global search of an associated Layer or the next associated Layer), such as a continous navigation by BoundarySurfaces between the confined TrackingVolumes.
Public Functions
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TrackingGeometry(const MutableTrackingVolumePtr &highestVolume, const IMaterialDecorator *materialDecorator = nullptr, const GeometryIdentifierHook &hook = {})¶
Constructor.
- Parameters
highestVolume – is the world volume
materialDecorator – is a dediated decorator that can assign surface or volume based material to the TrackingVolume
hook – Identifier hook to be applied to surfaces
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~TrackingGeometry()¶
Destructor.
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const Layer *associatedLayer(const GeometryContext &gctx, const Vector3 &gp) const¶
Forward the associated Layer information.
- Parameters
gctx – is the context for this request (e.g. alignment)
gp – is the global position of the call
- Returns
plain pointer to assocaiated layer
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const Surface *findSurface(GeometryIdentifier id) const¶
Search for a surface with the given identifier.
- Parameters
id – is the geometry identifier of the surface
- Return values
nullptr – if no such surface exists
pointer – to the found surface otherwise.
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const TrackingVolume *findVolume(GeometryIdentifier id) const¶
Search for a volume with the given identifier.
- Parameters
id – is the geometry identifier of the volume
- Return values
nullptr – if no such volume exists
pointer – to the found volume otherwise.
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const Surface *getBeamline() const¶
surface representing the beam pipe
Note
The ownership is not passed, e.g. do not delete the pointer
- Returns
raw pointer to surface representing the beam pipe (could be a null pointer)
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const TrackingVolume *highestTrackingVolume() const¶
Access to the world volume.
- Returns
plain pointer to the world volume
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const TrackingVolume *lowestTrackingVolume(const GeometryContext &gctx, const Vector3 &gp) const¶
return the lowest tracking Volume
- Parameters
gctx – The current geometry context object, e.g. alignment
gp – is the global position of the call
- Returns
plain pointer to the lowest TrackingVolume
Register the beam tube.
- Parameters
beam – is the beam line surface
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TrackingGeometry(const MutableTrackingVolumePtr &highestVolume, const IMaterialDecorator *materialDecorator = nullptr, const GeometryIdentifierHook &hook = {})¶