File GainMatrixUpdater.hpp

namespace Acts

Note

This file is foreseen for the Geometry module to replace Extent

class GainMatrixUpdater

#include <Acts/TrackFitting/GainMatrixUpdater.hpp>

Kalman update step using the gain matrix formalism.

Public Functions

template<typename traj_t>
inline Result<void> operator()(const GeometryContext &gctx, typename MultiTrajectory<traj_t>::TrackStateProxy trackState, NavigationDirection direction = NavigationDirection::Forward, const Logger &logger = getDummyLogger()) const

Run the Kalman update step for a single trajectory state.

Template Parameters

kMeasurementSizeMax –

Parameters

• gctx – [in] The current geometry context object, e.g. alignment

• trackState – [inout] The track state

• direction – [in] The navigation direction

• logger – [in] Where to write logging information to

Private Functions

std::tuple<double, std::error_code> visitMeasurement(InternalTrackState trackState, NavigationDirection direction, const Logger &logger) const

struct InternalTrackState

Public Members

double *calibrated

double *calibratedCovariance

unsigned int calibratedSize

TrackStateTraits<MultiTrajectoryTraits::MeasurementSizeMax, false>::Parameters filtered

TrackStateTraits<MultiTrajectoryTraits::MeasurementSizeMax, false>::Covariance filteredCovariance

TrackStateTraits<MultiTrajectoryTraits::MeasurementSizeMax, false>::Parameters predicted

TrackStateTraits<MultiTrajectoryTraits::MeasurementSizeMax, false>::Covariance predictedCovariance

TrackStateTraits<MultiTrajectoryTraits::MeasurementSizeMax, false>::Projector projector