Acts::NumericalTrackLinearizer::Config Struct Reference

Configuration struct. More...

#include <Acts/Vertexing/NumericalTrackLinearizer.hpp>

Collaboration diagram for Acts::NumericalTrackLinearizer::Config:

Public Member Functions
	Config (std::shared_ptr< const BasePropagator > prop)
	Config constructor without B field -> uses NullBField.
	Config (std::shared_ptr< const MagneticFieldProvider > bIn, std::shared_ptr< const BasePropagator > prop)
	@ Config constructor if magnetic field is present

Public Attributes
std::shared_ptr< const MagneticFieldProvider >	bField
	Magnetic field provider for numerical linearization.
double	delta = 1e-8
	Setting size of the perturbation delta for calculation of numerical derivatives (i.e., f'(x) ~ (f(x+delta) - f(x)) / delta).
std::shared_ptr< const BasePropagator >	propagator
	Track propagator for numerical calculations.
double	targetTolerance = 1e-12
	Tolerance determining how close we need to get to a surface to reach it during propagation.

Detailed Description

Configuration struct.

Constructor & Destructor Documentation

Config() [1/2]

Acts::NumericalTrackLinearizer::Config::Config ( std::shared_ptr< const MagneticFieldProvider > bIn, std::shared_ptr< const BasePropagator > prop )

explicit

@ Config constructor if magnetic field is present

Parameters

bIn	The magnetic field
prop	The propagator

Config() [2/2]

Acts::NumericalTrackLinearizer::Config::Config ( std::shared_ptr< const BasePropagator > prop )

explicit

Config constructor without B field -> uses NullBField.

Parameters

prop	Propagator

Member Data Documentation

bField

std::shared_ptr<const MagneticFieldProvider> Acts::NumericalTrackLinearizer::Config::bField

Magnetic field provider for numerical linearization.

delta

double Acts::NumericalTrackLinearizer::Config::delta = 1e-8

Setting size of the perturbation delta for calculation of numerical derivatives (i.e., f'(x) ~ (f(x+delta) - f(x)) / delta).

propagator

std::shared_ptr<const BasePropagator> Acts::NumericalTrackLinearizer::Config::propagator

Track propagator for numerical calculations.

targetTolerance

double Acts::NumericalTrackLinearizer::Config::targetTolerance = 1e-12

Tolerance determining how close we need to get to a surface to reach it during propagation.