Examples with AdamsBashforthIntegrator org.hipparchus.ode.nonstiff.AdamsBashforthIntegrator used on opensource projects

Example 1 with AdamsBashforthIntegrator

use of org.hipparchus.ode.nonstiff.AdamsBashforthIntegrator in project Orekit by CS-SI.

the class CloseEventsNumericalABTest method getPropagator.

/**
 * Create a propagator using the {@link #initialOrbit}.
 *
 * @param stepSize   of integrator.
 * @return a usable propagator.
 * @throws OrekitException
 */
public Propagator getPropagator(double stepSize) throws OrekitException {
    double[][] tol = NumericalPropagator.tolerances(10000, initialOrbit, OrbitType.CARTESIAN);
    final AdamsBashforthIntegrator integrator = new AdamsBashforthIntegrator(4, stepSize, stepSize, tol[0], tol[1]);
    final DormandPrince853Integrator starter = new DormandPrince853Integrator(stepSize / 100, stepSize / 10, tol[0], tol[1]);
    starter.setInitialStepSize(stepSize / 20);
    integrator.setStarterIntegrator(starter);
    final NumericalPropagator propagator = new NumericalPropagator(integrator);
    propagator.setInitialState(new SpacecraftState(initialOrbit));
    propagator.setOrbitType(OrbitType.CARTESIAN);
    return propagator;
}