Struct Acts::Experimental::Gx2FitterOptions

template<typename traj_t>
struct Gx2FitterOptions

Combined options for the Global-Chi-Square fitter.

Template Parameters

traj_t – The trajectory type

Public Functions

Gx2FitterOptions() = delete

Contexts are required and the options must not be default-constructible.

inline Gx2FitterOptions(const GeometryContext &gctx, const MagneticFieldContext &mctx, std::reference_wrapper<const CalibrationContext> cctx, Gx2FitterExtensions<traj_t> extensions_, const PropagatorPlainOptions &pOptions, const Surface *rSurface = nullptr, bool mScattering = false, bool eLoss = false, const FreeToBoundCorrection &freeToBoundCorrection_ = FreeToBoundCorrection(false), const size_t nUpdateMax_ = 5)

PropagatorOptions with context.

  • gctx – The geometry context for this fit

  • mctx – The magnetic context for this fit

  • cctx – The calibration context for this fit

  • extensions_ – The KF extensions

  • pOptions – The plain propagator options

  • rSurface – The reference surface for the fit to be expressed at

  • mScattering – Whether to include multiple scattering

  • eLoss – Whether to include energy loss

  • freeToBoundCorrection_ – Correction for non-linearity effect during transform from free to bound

  • nUpdateMax_ – Max number of iterations for updating the parameters

Public Members

std::reference_wrapper<const CalibrationContext> calibrationContext

context object for the calibration

bool energyLoss = false

Whether to consider energy loss.

Gx2FitterExtensions<traj_t> extensions
FreeToBoundCorrection freeToBoundCorrection

Whether to include non-linear correction during global to local transformation.

std::reference_wrapper<const GeometryContext> geoContext

Context object for the geometry.

std::reference_wrapper<const MagneticFieldContext> magFieldContext

Context object for the magnetic field.

bool multipleScattering = false

Whether to consider multiple scattering.

size_t nUpdateMax = 5

Max number of iterations during the fit.

PropagatorPlainOptions propagatorPlainOptions

The trivial propagator options.

const Surface *referenceSurface = nullptr

The reference Surface.