Package org.orekit.utils

This package provides useful objects.

Author:

L. Maisonobe

Interface Summary

Interface	Description
Constants	Set of useful physical constants.
ExtendedPositionProvider	Interface for position providers (including for Field).
ExtendedPVCoordinatesProvider	Interface for PV coordinates providers that also support fields.
FieldPVCoordinatesProvider<T extends CalculusFieldElement<T>>	Interface for PV coordinates providers.
FieldTimeStampedCache<T extends FieldTimeStamped<KK>,KK extends CalculusFieldElement<KK>>	Interface for a data structure that can provide concurrent access to FieldTimeStamped data surrounding a given date.
IERSConventions.NutationCorrectionConverter	Interface for functions converting nutation corrections between δΔψ/δΔε to δX/δY.
MultipleShooting	Interface for Multiple shooting methods.
ParameterDriversProvider	Provider for parameters drivers.
ParameterFunction	Interface representing a scalar function depending on a ParameterDriver.
ParameterObserver	Interface for observing parameters changes.
PVCoordinatesProvider	Interface for PV coordinates providers.
StateFunction	Interface representing a vector function depending on SpacecraftState.
StateJacobian	Interface representing the Jacobian of a vector function depending on SpacecraftState.
TimeStampedCache<T extends TimeStamped>	Interface for a data structure that can provide concurrent access to TimeStamped data surrounding a given date.
TimeStampedGenerator<T extends TimeStamped>	Generator to use for creating entries in time stamped caches.
WaypointPVBuilder.InterpolationFactory	Factory interface, creating the PVCoordinatesProvider instances between the provided waypoints.

Class Summary

Class	Description
AbsolutePVCoordinates	Position - Velocity - Acceleration linked to a date and a frame.
AbsolutePVCoordinatesHermiteInterpolator	Class using a Hermite interpolator to interpolate absolute position-velocity-acceleration coordinates.
AbstractMultipleShooting	Multiple shooting method using only constraints on state vectors of patch points (and possibly on epoch and integration time).
AccurateFormatter	Formatter used to produce strings from data with high accuracy.
AggregatedPVCoordinatesProvider	Aggreate multiple PVCoordinatesProvider instances together This can be used to describe an aircraft or surface vehicle.
AggregatedPVCoordinatesProvider.Builder	Builder class for AggregatedPVCoordinatesProvider.
AggregatedPVCoordinatesProvider.InvalidPVProvider	Implementation of PVCoordinatesProvider that throws an illegal state exception.
AngularCoordinates	Simple container for rotation/rotation rate/rotation acceleration triplets.
ConstantPVCoordinatesProvider	Provider based on a single point.
DateDriver	Parameter driver allowing to drive a date.
Differentiation	Utility class for differentiating various kinds of functions.
DoubleArrayDictionary	String → double[] mapping, for small number of keys.
DoubleArrayDictionary.Entry	Entry in a dictionary.
ElevationMask	Class for modeling the ground elevation values around a given point.
ExtendedPVCoordinatesProviderAdapter	Adapter from ExtendedPVCoordinatesProvider to TransformProvider.
FieldAbsolutePVCoordinates<T extends CalculusFieldElement<T>>	Field implementation of AbsolutePVCoordinates.
FieldAbsolutePVCoordinatesHermiteInterpolator<KK extends CalculusFieldElement<KK>>	Class using a Hermite interpolator to interpolate absolute position-velocity-acceleration coordinates.
FieldAngularCoordinates<T extends CalculusFieldElement<T>>	Simple container for rotation / rotation rate pairs, using CalculusFieldElement.
FieldArrayDictionary<T extends CalculusFieldElement<T>>	String → CalculusFieldElement[] mapping, for small number of keys.
Fieldifier	Utility class used to convert class to their Field equivalent.
FieldLegendrePolynomials<T extends CalculusFieldElement<T>>	Computes the Pnm(t) coefficients.
FieldPVCoordinates<T extends CalculusFieldElement<T>>	Simple container for Position/Velocity pairs, using CalculusFieldElement.
FieldShiftingPVCoordinatesProvider<T extends CalculusFieldElement<T>>	Provider using simple FieldPVCoordinates.shiftedBy(CalculusFieldElement) shiftedBy} and frame transforms for evolution.
FieldSortedListTrimmer	A trimmer for externally stored chronologically sorted lists.
FieldTimeSpanMap<T,D extends CalculusFieldElement<D>>	Container for objects that apply to spans of time.
FieldTimeSpanMap.Transition<S,D extends CalculusFieldElement<D>>	Local class holding transition times.
FieldTrackingCoordinates<T extends CalculusFieldElement<T>>	Container for azimut/elevation/range coordinates as seen from a ground point.
FrameAdapter	Adapter from Frame to ExtendedPVCoordinatesProvider.
GenericTimeStampedCache<T extends TimeStamped>	Generic thread-safe cache for time-stamped data.
ImmutableFieldTimeStampedCache<T extends FieldTimeStamped<KK>,KK extends CalculusFieldElement<KK>>	A cache of TimeStamped data that provides concurrency through immutability.
ImmutableTimeStampedCache<T extends TimeStamped>	A cache of TimeStamped data that provides concurrency through immutability.
InterpolationTableLoader	Used to read an interpolation table from a data file.
LegendrePolynomials	Computes the Pnm(t) coefficients.
LoveNumbers	Container for Love numbers.
MultipleShooter	Multiple shooting method applicable for trajectories, in an ephemeris model.
OccultationEngine	Computation engine for occultation events.
OccultationEngine.FieldOccultationAngles<T extends CalculusFieldElement<T>>	Container for occultation angles.
OccultationEngine.OccultationAngles	Container for occultation angles.
OrekitConfiguration	Utility class for setting global configuration parameters.
ParameterDriver	Class allowing to drive the value of a parameter.
ParameterDriversList	Class managing several parameter drivers, taking care of duplicated names.
ParameterDriversList.DelegatingDriver	Specialized driver delegating to several other managing the same parameter name.
PVCoordinates	Simple container for Position/Velocity/Acceleration triplets.
SecularAndHarmonic	Class for fitting evolution of osculating orbital parameters.
ShiftingPVCoordinatesProvider	Provider using simple PVCoordinates.shiftedBy(double) shiftedBy} and frame transforms for evolution.
SortedListTrimmer	A trimmer for externally stored chronologically sorted lists.
TimeSpanMap<T>	Container for objects that apply to spans of time.
TimeSpanMap.Span<S>	Holder for one time span.
TimeSpanMap.Transition<S>	Class holding transition times.
TimeStampedAngularCoordinates	time-stamped version of AngularCoordinates.
TimeStampedAngularCoordinatesHermiteInterpolator	Class using Hermite interpolator to interpolate time stamped angular coordinates.
TimeStampedFieldAngularCoordinates<T extends CalculusFieldElement<T>>	time-stamped version of FieldAngularCoordinates.
TimeStampedFieldAngularCoordinatesHermiteInterpolator<KK extends CalculusFieldElement<KK>>	Class using Hermite interpolator to interpolate time stamped angular coordinates.
TimeStampedFieldPVCoordinates<T extends CalculusFieldElement<T>>	time-stamped version of FieldPVCoordinates.
TimeStampedFieldPVCoordinatesHermiteInterpolator<KK extends CalculusFieldElement<KK>>	Class using a Hermite interpolator to interpolate time stamped position-velocity-acceleration coordinates.
TimeStampedPVCoordinates	time-stamped version of PVCoordinates.
TimeStampedPVCoordinatesHermiteInterpolator	Class using a Hermite interpolator to interpolate time stamped position-velocity-acceleration coordinates.
TrackingCoordinates	Container for azimut/elevation/range coordinates as seen from a ground point.
WaypointPVBuilder	Builder class, enabling incremental building of an PVCoordinatesProvider instance using waypoints defined on an ellipsoid.

Enum Summary

Enum	Description
AngularDerivativesFilter	Enumerate for selecting which derivatives to use in TimeStampedAngularCoordinates and TimeStampedFieldAngularCoordinates interpolation.
CartesianDerivativesFilter	Enumerate for selecting which derivatives to use in TimeStampedPVCoordinates and TimeStampedFieldPVCoordinates interpolation.
IERSConventions	Supported IERS conventions.
LagrangianPoints	Enumerate for selecting which Lagrangian Point to consider in different classes.