Acts::SpacePointBuilder< spacepoint_t > Class Template Reference

After the particle interaction with surfaces are recorded and digitized measurements on the pixel or strip detectors need further treatment. More...

#include <Acts/SpacePointFormation/SpacePointBuilder.hpp>

Collaboration diagram for Acts::SpacePointBuilder< spacepoint_t >:

Public Types
using	BuilderFunction
	Type alias for space point builder function.

Public Member Functions
	SpacePointBuilder ()=default
	SpacePointBuilder (const SpacePointBuilderConfig &cfg, BuilderFunction func, std::unique_ptr< const Logger > logger=getDefaultLogger("SpacePointBuilder", Logging::INFO))
template<template< typename... > typename container_t>
void	buildSpacePoint (const GeometryContext &gctx, const std::vector< SourceLink > &sourceLinks, const SpacePointBuilderOptions &opt, std::back_insert_iterator< container_t< spacepoint_t > > spacePointIt) const
	Calculates the space points out of a given collection of SourceLinks and stores the results.
void	makeSourceLinkPairs (const GeometryContext &gctx, const std::vector< SourceLink > &slinksFront, const std::vector< SourceLink > &slinksBack, std::vector< std::pair< SourceLink, SourceLink > > &slinkPairs, const StripPairOptions &pairOpt) const
	Searches possible combinations of two SourceLinks on different surfaces that may come from the same particles.

Protected Member Functions
const Logger &	logger () const
	Get the logger instance.

Protected Attributes
SpacePointBuilderConfig	m_config
	Configuration of the single hit space point builder.
std::unique_ptr< const Acts::Logger >	m_logger
	the logging instance
BuilderFunction	m_spConstructor
	Function to create external space point The constructor of spacepoint_t with Vector3 global pos, Vector2 global cov, and vector of source link pointers.
std::shared_ptr< const SpacePointUtility >	m_spUtility
	Utility for space point calculations.

Detailed Description

template<typename spacepoint_t>
class Acts::SpacePointBuilder< spacepoint_t >

After the particle interaction with surfaces are recorded and digitized measurements on the pixel or strip detectors need further treatment.

This class takes the SouceLinks and provides the corresponding space points.

Member Typedef Documentation

BuilderFunction

template<typename spacepoint_t>

using Acts::SpacePointBuilder< spacepoint_t >::BuilderFunction

Initial value:

 std::function<spacepoint_t(
      Acts::Vector3, std::optional<double>, Acts::Vector2,
      std::optional<double>, boost::container::static_vector<SourceLink, 2>)>

Type alias for space point builder function.

Constructor & Destructor Documentation

SpacePointBuilder() [1/2]

template<typename spacepoint_t>

Acts::SpacePointBuilder< spacepoint_t >::SpacePointBuilder	(	const SpacePointBuilderConfig &	cfg,
		BuilderFunction	func,
		std::unique_ptr< const Logger >	logger = getDefaultLogger("SpacePointBuilder< spacepoint_t >", Logging::INFO) )

Parameters

cfg	The configuration for the space point builder
func	The function that provides user's SP constructor with global pos, global cov, and sourceLinks.
logger	The logging instance

SpacePointBuilder() [2/2]

template<typename spacepoint_t>

Acts::SpacePointBuilder< spacepoint_t >::SpacePointBuilder ( )

default

Member Function Documentation

buildSpacePoint()

template<typename spacepoint_t>

template<template< typename... > typename container_t>

void Acts::SpacePointBuilder< spacepoint_t >::buildSpacePoint	(	const GeometryContext &	gctx,
		const std::vector< SourceLink > &	sourceLinks,
		const SpacePointBuilderOptions &	opt,
		std::back_insert_iterator< container_t< spacepoint_t > >	spacePointIt ) const

Calculates the space points out of a given collection of SourceLinks and stores the results.

Parameters

gctx	The current geometry context object, e.g. alignment
sourceLinks	vector of Sourcelink
opt	option for the space point building. It contains the ends of the strips for strip SP building
spacePointIt	Output iterator for the space point

logger()

template<typename spacepoint_t>

const Logger & Acts::SpacePointBuilder< spacepoint_t >::logger ( ) const

protected

Get the logger instance.

Returns

Reference to the logger

makeSourceLinkPairs()

template<typename spacepoint_t>

void Acts::SpacePointBuilder< spacepoint_t >::makeSourceLinkPairs	(	const GeometryContext &	gctx,
		const std::vector< SourceLink > &	slinksFront,
		const std::vector< SourceLink > &	slinksBack,
		std::vector< std::pair< SourceLink, SourceLink > > &	slinkPairs,
		const StripPairOptions &	pairOpt ) const

Searches possible combinations of two SourceLinks on different surfaces that may come from the same particles.

Parameters

gctx	The current geometry context object, e.g. alignment
slinksFront	vector of Sourcelinks on a surface
slinksBack	vector of SoruceLinks on another surface
slinkPairs	storage of the SouceLink pairs
pairOpt	pair maker option with paramCovAccessor

Member Data Documentation

m_config

template<typename spacepoint_t>

SpacePointBuilderConfig Acts::SpacePointBuilder< spacepoint_t >::m_config

protected

Configuration of the single hit space point builder.

m_logger

template<typename spacepoint_t>

std::unique_ptr<const Acts::Logger> Acts::SpacePointBuilder< spacepoint_t >::m_logger

protected

the logging instance

m_spConstructor

template<typename spacepoint_t>

BuilderFunction Acts::SpacePointBuilder< spacepoint_t >::m_spConstructor

protected

Function to create external space point The constructor of spacepoint_t with Vector3 global pos, Vector2 global cov, and vector of source link pointers.

m_spUtility

template<typename spacepoint_t>

std::shared_ptr<const SpacePointUtility> Acts::SpacePointBuilder< spacepoint_t >::m_spUtility

protected

Utility for space point calculations.