ODEIntegratorBuilder.java
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* CS licenses this file to You under the Apache License, Version 2.0
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* Unless required by applicable law or agreed to in writing, software
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package org.orekit.propagation.conversion;
import org.hipparchus.ode.AbstractIntegrator;
import org.orekit.orbits.CartesianOrbit;
import org.orekit.orbits.Orbit;
import org.orekit.orbits.OrbitType;
import org.orekit.orbits.PositionAngleType;
import org.orekit.utils.AbsolutePVCoordinates;
/** This interface is the top-level abstraction to build first order integrators for propagators conversion.
* @author Pascal Parraud
* @since 6.0
*/
public interface ODEIntegratorBuilder {
/** Build a first order integrator.
* @param orbit reference orbit
* @param orbitType orbit type to use
* @param angleType position angle type to use
* @return a first order integrator ready to use
* @since 13.0
*/
AbstractIntegrator buildIntegrator(Orbit orbit, OrbitType orbitType, PositionAngleType angleType);
/** Build a first order integrator.
* @param orbit reference orbit
* @param orbitType orbit type to use
* @return a first order integrator ready to use
*/
default AbstractIntegrator buildIntegrator(Orbit orbit, OrbitType orbitType) {
return buildIntegrator(orbit, orbitType, PositionAngleType.MEAN);
}
/**
* Build a first order integrator. Non-orbit version.
* @param absolutePVCoordinates absolute position-velocity vector
* @return a first order integrator ready to use
* @since 12.2
*/
default AbstractIntegrator buildIntegrator(final AbsolutePVCoordinates absolutePVCoordinates) {
final double arbitraryMu = 1.;
final CartesianOrbit cartesianOrbit = new CartesianOrbit(absolutePVCoordinates.getPVCoordinates(),
absolutePVCoordinates.getFrame(), arbitraryMu);
return buildIntegrator(cartesianOrbit, OrbitType.CARTESIAN);
}
}