Acts::Experimental::Gx2Fitter< propagator_t, traj_t > Class Template Reference

Global Chi Square fitter (GX2F) implementation. More...

#include <Acts/TrackFitting/GlobalChiSquareFitter.hpp>

Public Member Functions
	Gx2Fitter (propagator_t pPropagator, std::unique_ptr< const Logger > _logger=getDefaultLogger("Gx2Fitter", Logging::INFO))
	Constructor for the Global Chi-Square Fitter.
template<typename source_link_iterator_t, TrackContainerFrontend track_container_t> requires (!isDirectNavigator)
Result< typename track_container_t::TrackProxy >	fit (source_link_iterator_t it, source_link_iterator_t end, const BoundTrackParameters &sParameters, const Gx2FitterOptions< traj_t > &gx2fOptions, track_container_t &trackContainer) const
	Fit implementation.

Detailed Description

template<typename propagator_t, typename traj_t>
class Acts::Experimental::Gx2Fitter< propagator_t, traj_t >

Global Chi Square fitter (GX2F) implementation.

Template Parameters

propagator_t

Type of the propagation class

TODO Write description

Constructor & Destructor Documentation

Gx2Fitter()

template<typename propagator_t, typename traj_t>

Acts::Experimental::Gx2Fitter< propagator_t, traj_t >::Gx2Fitter ( propagator_t pPropagator, std::unique_ptr< const Logger > _logger = getDefaultLogger("Gx2Fitter< propagator_t, traj_t >", Logging::INFO) )

explicit

Constructor for the Global Chi-Square Fitter.

Initializes the fitter with a propagator and optional logger. The fitter uses iterative fitting with a linear equation system to minimize chi-squared including multiple scattering effects.

Parameters

pPropagator	The propagator instance for track propagation
_logger	Logger instance for debugging output (optional)

Member Function Documentation

fit()

template<typename propagator_t, typename traj_t>

template<typename source_link_iterator_t, TrackContainerFrontend track_container_t>
requires (!isDirectNavigator)

Result< typename track_container_t::TrackProxy > Acts::Experimental::Gx2Fitter< propagator_t, traj_t >::fit	(	source_link_iterator_t	it,
		source_link_iterator_t	end,
		const BoundTrackParameters &	sParameters,
		const Gx2FitterOptions< traj_t > &	gx2fOptions,
		track_container_t &	trackContainer ) const

Fit implementation.

Template Parameters

source_link_iterator_t	Iterator type used to pass source links
track_container_t	Type of the track container backend
holder_t	Type defining track container backend ownership

Parameters

it	Begin iterator for the fittable uncalibrated measurements
end	End iterator for the fittable uncalibrated measurements
sParameters	The initial track parameters
gx2fOptions	Gx2FitterOptions steering the fit
trackContainer	Input track container storage to append into

Note

The input measurements are given in the form of SourceLink s. It's the calibrators job to turn them into calibrated measurements used in the fit.

Returns

the output as an output track