Example usage for org.apache.commons.math3.ode AbstractIntegrator clearStepHandlers

Introduction

In this page you can find the example usage for org.apache.commons.math3.ode AbstractIntegrator clearStepHandlers.

Prototype

public void clearStepHandlers() 

Source Link

Usage

From source file:org.orekit.propagation.semianalytical.dsst.DSSTPropagator.java

/** Method called just before integration.
 * <p>//from  w ww .  j  a  v a 2s  .c o m
 * The default implementation does nothing, it may be specialized in subclasses.
 * </p>
 * @param initialState initial state
 * @param tEnd target date at which state should be propagated
 * @exception OrekitException if hook cannot be run
 */
@Override
protected void beforeIntegration(final SpacecraftState initialState, final AbsoluteDate tEnd)
        throws OrekitException {

    // compute common auxiliary elements
    final AuxiliaryElements aux = new AuxiliaryElements(initialState.getOrbit(), I);

    // check if only mean elements must be used
    final boolean meanOnly = isMeanOrbit();

    // initialize all perturbing forces
    for (final DSSTForceModel force : mapper.getForceModels()) {
        force.initialize(aux, meanOnly);
    }

    // if required, insert the special short periodics step handler
    if (!meanOnly) {
        final InterpolationGrid grid = new VariableStepInterpolationGrid(INTERPOLATION_POINTS_PER_STEP);
        final ShortPeriodicsHandler spHandler = new ShortPeriodicsHandler(grid);
        final Collection<StepHandler> stepHandlers = new ArrayList<StepHandler>();
        stepHandlers.add(spHandler);
        final AbstractIntegrator integrator = getIntegrator();
        final Collection<StepHandler> existing = integrator.getStepHandlers();
        stepHandlers.addAll(existing);

        integrator.clearStepHandlers();

        // add back the existing handlers after the short periodics one
        for (final StepHandler sp : stepHandlers) {
            integrator.addStepHandler(sp);
        }
    }
}

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From source file:org.orekit.propagation.semianalytical.dsst.DSSTPropagator.java

/** {@inheritDoc} */
@Override//  ww  w .j a  v a 2 s  .  co  m
protected void afterIntegration() throws OrekitException {
    // remove the special short periodics step handler if added before
    if (!isMeanOrbit()) {
        final List<StepHandler> preserved = new ArrayList<StepHandler>();
        final AbstractIntegrator integrator = getIntegrator();
        for (final StepHandler sp : integrator.getStepHandlers()) {
            if (!(sp instanceof ShortPeriodicsHandler)) {
                preserved.add(sp);
            }
        }

        // clear the list
        integrator.clearStepHandlers();

        // add back the step handlers that were important for the user
        for (final StepHandler sp : preserved) {
            integrator.addStepHandler(sp);
        }
    }
}

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