Acts::VertexFitProblem Struct Reference

A multi-vertex fit problem. More...

#include <Acts/Vertexing/VertexFitProblem.hpp>

Collaboration diagram for Acts::VertexFitProblem:

Public Member Functions
void	addVertexToMultiMap (Vertex &vtx)
	Adds a vertex to trackToVertices, using the tracks currently assigned to it in candidates.
Result< void >	removeVertexFromCollection (Vertex &vtxToRemove, const Logger &logger)
	Remove a vertex from the vertex collection.
void	removeVertexFromMultiMap (const Vertex &vtx)
	Removes a vertex from trackToVertices.

Public Attributes
std::map< Vertex *, VertexFitCandidate >	candidates
	Candidate description (constraint, seed position, tracks) per vertex.
std::map< std::pair< InputTrack, Vertex * >, TrackAtVertex >	tracksAtVertices
	Track-at-vertex information for each (track, vertex) pair.
std::multimap< InputTrack, Vertex * >	trackToVertices
	Multimap connecting tracks to all of their associated vertices.
std::vector< Vertex * >	vertices
	The vertices to be fitted.

Detailed Description

A multi-vertex fit problem.

Per-event, caller-owned and fitter-agnostic description of what is to be fitted: a set of vertices, the candidate description of each, and the track-to-vertex association that couples them. Fitter-private scratch data (linearization points, annealing state, field caches) lives in the respective fitter's cache instead, so that this type can be shared between fitters and inspected by callers.

Member Function Documentation

addVertexToMultiMap()

void Acts::VertexFitProblem::addVertexToMultiMap

(

Vertex &

vtx

)

Adds a vertex to trackToVertices, using the tracks currently assigned to it in candidates.

Parameters

vtx	Vertex to add to the multimap along with its track associations

removeVertexFromCollection()

Result< void > Acts::VertexFitProblem::removeVertexFromCollection	(	Vertex &	vtxToRemove,
		const Logger &	logger )

Remove a vertex from the vertex collection.

Parameters

vtxToRemove	Vertex to remove from the collection
logger	Logger for diagnostic messages

Returns

Result indicating success or failure of the removal operation

removeVertexFromMultiMap()

void Acts::VertexFitProblem::removeVertexFromMultiMap

(

const Vertex &

vtx

)

Removes a vertex from trackToVertices.

Parameters

vtx	Vertex to remove from the multimap along with its track associations