ActsFatras::Segmentizer Struct Reference

The Segmentizer splits a surface segment, i.e. More...

#include <ActsFatras/Digitization/Segmentizer.hpp>

Classes
struct	ChannelSegment
	Nested struct for representing channel steps. More...
struct	ChannelStep
	Nested struct for stepping from one channel to the next. More...

Public Types
using	Bin2D = std::array<unsigned int, 2>
	Shorthand for a 2D bin.
using	BinDelta2D = std::array<int, 2>
	shorthand for a 2D bin delta
using	Segment2D = std::array<Acts::Vector2, 2>
	Shorthand for a 2D segment.

Public Member Functions
std::vector< ChannelSegment >	segments (const Acts::GeometryContext &geoCtx, const Acts::Surface &surface, const Acts::BinUtility &segmentation, const Segment2D &segment) const
	Divide the surface segment into channel segments.

Detailed Description

The Segmentizer splits a surface segment, i.e.

after projection onto the readout surface into channel segments.

Member Typedef Documentation

Bin2D

using ActsFatras::Segmentizer::Bin2D = std::array<unsigned int, 2>

Shorthand for a 2D bin.

BinDelta2D

using ActsFatras::Segmentizer::BinDelta2D = std::array<int, 2>

shorthand for a 2D bin delta

Segment2D

using ActsFatras::Segmentizer::Segment2D = std::array<Acts::Vector2, 2>

Shorthand for a 2D segment.

Member Function Documentation

segments()

std::vector< ChannelSegment > ActsFatras::Segmentizer::segments	(	const Acts::GeometryContext &	geoCtx,
		const Acts::Surface &	surface,
		const Acts::BinUtility &	segmentation,
		const Segment2D &	segment ) const

Divide the surface segment into channel segments.

Note

Channelizing is done in cartesian coordinates (start/end)

The start and end cartesian vector is supposed to be inside the surface bounds (pre-run through the SurfaceMasker)

The segmentation has to be 2-dimensional, even if the actual readout is 1-dimensional, in latter case one bin in the second coordinate direction is required.

Parameters

geoCtx	The geometry context for the localToGlobal, etc.
surface	The surface for the channelizing
segmentation	The segmentation for the channelizing
segment	The surface segment (cartesian coordinates)

Returns

a vector of ChannelSegment objects