Acts::GaussianTrackDensity Class Reference

Class to model tracks as 2D Gaussian-shaped density functions based on their d0 and z0 perigee parameters (mean value) and covariance matrices (determining the width of the function) More...

#include <acts/blob/master/Core/include/Acts/Vertexing/GaussianTrackDensity.hpp>

Collaboration diagram for Acts::GaussianTrackDensity:

Classes
struct	Config
	The Config struct. More...
struct	State
	The State struct. More...

Public Member Functions
	GaussianTrackDensity ()=default
	Default constructor.
	GaussianTrackDensity (const Config &cfg)
	Constructor with config.
double	globalMaximum (const std::vector< Acts::BoundParameters > &trackList, State &state) const
	Calculates the global maximum.
std::pair< double, double >	globalMaximumWithWidth (const std::vector< Acts::BoundParameters > &trackList, State &state) const
	Calculates the global maximum with width.

Private Member Functions
void	addTracks (const std::vector< Acts::BoundParameters > &trackList, State &state) const
	Adds tracks based on a significance cut.

Private Attributes
Config	m_cfg
	The configuration.

Detailed Description

Class to model tracks as 2D Gaussian-shaped density functions based on their d0 and z0 perigee parameters (mean value) and covariance matrices (determining the width of the function)

Definition at line 20 of file GaussianTrackDensity.hpp.

View newest version in sPHENIX GitHub at line 20 of file GaussianTrackDensity.hpp

Constructor & Destructor Documentation

Acts::GaussianTrackDensity::GaussianTrackDensity ( )

default

Default constructor.

Acts::GaussianTrackDensity::GaussianTrackDensity ( const Config &  cfg )

inline

Constructor with config.

Definition at line 46 of file GaussianTrackDensity.hpp.

View newest version in sPHENIX GitHub at line 46 of file GaussianTrackDensity.hpp

Member Function Documentation

void Acts::GaussianTrackDensity::addTracks ( const std::vector< Acts::BoundParameters > &  trackList, State &  state  ) const

private

Adds tracks based on a significance cut.

Parameters

trackList	The list of tracks
state	The GaussianTrackDensity state

Definition at line 23 of file GaussianTrackDensity.cpp.

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

References Acts::TrackDensity::addTrack(), Acts::GaussianTrackDensity::State::trackDensity, and Acts::GaussianTrackDensity::State::trackDensityState.

Referenced by globalMaximum().

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double Acts::GaussianTrackDensity::globalMaximum	(	const std::vector< Acts::BoundParameters > &	trackList,
		State &	state
	)		const

Calculates the global maximum.

Parameters

trackList	The list of tracks
state	The GaussianTrackDensity state

Returns

The z position of the maximum

Definition at line 11 of file GaussianTrackDensity.cpp.

View newest version in sPHENIX GitHub at line 11 of file GaussianTrackDensity.cpp

References addTracks(), Acts::TrackDensity::globalMaximum(), Acts::GaussianTrackDensity::State::trackDensity, and Acts::GaussianTrackDensity::State::trackDensityState.

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std::pair< double, double > Acts::GaussianTrackDensity::globalMaximumWithWidth	(	const std::vector< Acts::BoundParameters > &	trackList,
		State &	state
	)		const

Calculates the global maximum with width.

Parameters

trackList	The list of tracks
state	The GaussianTrackDensity state

Returns

The z position of the maximum and its width

Definition at line 17 of file GaussianTrackDensity.cpp.

View newest version in sPHENIX GitHub at line 17 of file GaussianTrackDensity.cpp

References Acts::TrackDensity::globalMaximumWithWidth(), Acts::GaussianTrackDensity::State::trackDensity, and Acts::GaussianTrackDensity::State::trackDensityState.

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Member Data Documentation

Config Acts::GaussianTrackDensity::m_cfg

private

The configuration.

Definition at line 68 of file GaussianTrackDensity.hpp.

View newest version in sPHENIX GitHub at line 68 of file GaussianTrackDensity.hpp

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

• acts/blob/master/Core/include/Acts/Vertexing/GaussianTrackDensity.hpp
• acts/blob/master/Core/src/Vertexing/GaussianTrackDensity.cpp