org.orekit.propagation.conversion

Class KeplerianPropagatorBuilder

java.lang.Object

org.orekit.propagation.conversion.AbstractPropagatorBuilder

org.orekit.propagation.conversion.KeplerianPropagatorBuilder

All Implemented Interfaces:

PropagatorBuilder

public class KeplerianPropagatorBuilder
extends AbstractPropagatorBuilder

Builder for Keplerian propagator.

Since:

6.0

Author:

Pascal Parraud

Constructor Summary

Constructors

Constructor and Description
KeplerianPropagatorBuilder(Orbit templateOrbit, PositionAngle positionAngle, double positionScale) Build a new instance.

Method Summary

Modifier and Type	Method and Description
Propagator	buildPropagator(double[] normalizedParameters) Build a propagator.

Methods inherited from class org.orekit.propagation.conversion.AbstractPropagatorBuilder

addSupportedParameter, createInitialOrbit, getFrame, getInitialOrbitDate, getOrbitalParametersDrivers, getOrbitType, getPositionAngle, getPropagationParametersDrivers, getSelectedNormalizedParameters, setParameters

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

KeplerianPropagatorBuilder

public KeplerianPropagatorBuilder(Orbit templateOrbit,
                                  PositionAngle positionAngle,
                                  double positionScale)
                           throws OrekitException

Build a new instance.

The template orbit is used as a model to create initial orbit. It defines the inertial frame, the central attraction coefficient, the orbit type, and is also used together with the positionScale to convert from the normalized parameters used by the callers of this builder to the real orbital parameters.

Parameters:

templateOrbit - reference orbit from which real orbits will be built

positionAngle - position angle type to use

positionScale - scaling factor used for orbital parameters normalization (typically set to the expected standard deviation of the position)

Throws:

OrekitException - if parameters drivers cannot be scaled

Since:

8.0

Method Detail

buildPropagator

public Propagator buildPropagator(double[] normalizedParameters)
                           throws OrekitException

Build a propagator.

Parameters:

normalizedParameters - normalized values for the selected parameters

Returns:

an initialized propagator

Throws:

OrekitException - if propagator cannot be build