ActsFatras::Channelizer Struct Reference

#include <acts/blob/sPHENIX/Fatras/include/ActsFatras/Digitization/Channelizer.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	Segment2D = std::array< Acts::Vector2, 2 >
	Shorthand for a 2D segment.
using	Bin2D = std::array< unsigned int, 2 >
	Shorthand for a 2D bin.
using	BinDelta2D = std::array< int, 2 >
	shorthand for a 2D bin delta

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

Detailed Description

The Channelizer splits a surface segment, i.e. after projection onto the readout surface into channel segments.

Definition at line 28 of file Channelizer.hpp.

View newest version in sPHENIX GitHub at line 28 of file Channelizer.hpp

Member Typedef Documentation

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

Shorthand for a 2D bin.

Definition at line 32 of file Channelizer.hpp.

View newest version in sPHENIX GitHub at line 32 of file Channelizer.hpp

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

shorthand for a 2D bin delta

Definition at line 34 of file Channelizer.hpp.

View newest version in sPHENIX GitHub at line 34 of file Channelizer.hpp

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

Shorthand for a 2D segment.

Definition at line 30 of file Channelizer.hpp.

View newest version in sPHENIX GitHub at line 30 of file Channelizer.hpp

Member Function Documentation

std::vector< ActsFatras::Channelizer::ChannelSegment > ActsFatras::Channelizer::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

Definition at line 23 of file Channelizer.cpp.

View newest version in sPHENIX GitHub at line 23 of file Channelizer.cpp

References Acts::BinUtility::bin(), Acts::BinUtility::binningData(), Acts::GeometryObject::binningPositionValue(), Acts::binR, Acts::BinUtility::dimensions(), end, Acts::detail::IntersectionHelper2D::intersectCircleSegment(), Acts::detail::IntersectionHelper2D::intersectSegment(), k, Acts::UnitConstants::min, Acts::Test::origin(), path, Acts::VectorHelpers::perp(), ActsTests::PropagationDatasets::phi, Acts::VectorHelpers::phi(), G4HCALIN::phistart, pstart(), physmon_track_finding_ttbar::r, Acts::Experimental::detail::BlueprintHelper::sort(), start, Acts::Surface::type(), ambiguity_solver_full_chain::x, and y.

Referenced by ActsFatras::BOOST_AUTO_TEST_CASE(), and ActsFatras::BOOST_DATA_TEST_CASE().

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The documentation for this struct was generated from the following files:

• acts/blob/sPHENIX/Fatras/include/ActsFatras/Digitization/Channelizer.hpp
• acts/blob/sPHENIX/Fatras/src/Digitization/Channelizer.cpp