Acts::ZScanVertexFinder Class Reference

Implements a vertex finder based on the mode of z0 values: More...

#include <Acts/Vertexing/ZScanVertexFinder.hpp>

Inheritance diagram for Acts::ZScanVertexFinder:

Collaboration diagram for Acts::ZScanVertexFinder:

Classes
struct	Config
	Configuration struct. More...
struct	State
	State struct for fulfilling interface. More...

Public Member Functions
	ZScanVertexFinder (const Config &cfg, std::unique_ptr< const Logger > logger=getDefaultLogger("ZScanVertexFinder", Logging::INFO))
	Constructor for user-defined InputTrack type.
Result< std::vector< Vertex > >	find (const std::vector< InputTrack > &trackVector, const VertexingOptions &vertexingOptions, IVertexFinder::State &state) const override
	Function that determines single vertex, based on z0 values of input tracks, using a Half Sample Mode algorithm.
IVertexFinder::State	makeState (const Acts::MagneticFieldContext &) const override
	Function to create a state object for this concrete vertex finder.
void	setTracksToRemove (IVertexFinder::State &, const std::vector< InputTrack > &) const override
	For vertex finders that have an internal state of active tracks, this method instructs them to mark used tracks for removal.
Public Member Functions inherited from Acts::IVertexFinder
virtual	~IVertexFinder ()=default
	Virtual destructor.

Additional Inherited Members
Public Types inherited from Acts::IVertexFinder
using	State = Acts::AnyBase<128>
	Type-erased wrapper for concrete state objects.

Detailed Description

Implements a vertex finder based on the mode of z0 values:

1. Determines the mode value of all input track z0 values
2. If no constraint is given, returns (0,0, z0_mode) as vertex position
3. If vertex constraint is given with x=x_constr and y=y_constr, the returned vertex position will be (x_constr, y_constr, z0_mode).

Constructor & Destructor Documentation

ZScanVertexFinder()

Acts::ZScanVertexFinder::ZScanVertexFinder ( const Config & cfg, std::unique_ptr< const Logger > logger = getDefaultLogger("ZScanVertexFinder", Logging::INFO) )

explicit

Constructor for user-defined InputTrack type.

Parameters

cfg	Configuration object
logger	Logging instance

Member Function Documentation

find()

Result< std::vector< Vertex > > Acts::ZScanVertexFinder::find ( const std::vector< InputTrack > & trackVector, const VertexingOptions & vertexingOptions, IVertexFinder::State & state ) const

overridevirtual

Function that determines single vertex, based on z0 values of input tracks, using a Half Sample Mode algorithm.

Parameters

trackVector	Input track collection
vertexingOptions	Vertexing options
state	State for fulfilling correct interface

Returns

Vector of vertices, filled with a single vertex (for consistent interfaces)

Implements Acts::IVertexFinder.

makeState()

IVertexFinder::State Acts::ZScanVertexFinder::makeState ( const Acts::MagneticFieldContext & mctx ) const

overridevirtual

Function to create a state object for this concrete vertex finder.

Parameters

mctx	The magnetic field context

Returns

The state object

Implements Acts::IVertexFinder.

setTracksToRemove()

void Acts::ZScanVertexFinder::setTracksToRemove ( IVertexFinder::State & anyState, const std::vector< InputTrack > & removedTracks ) const

overridevirtual

For vertex finders that have an internal state of active tracks, this method instructs them to mark used tracks for removal.

Parameters

anyState	The state object
removedTracks	The tracks to be removed

Implements Acts::IVertexFinder.