Examples with Action org.orekit.propagation.events.handlers.FieldEventHandler.Action used on opensource projects

Example 1 with Action

use of org.orekit.propagation.events.handlers.FieldEventHandler.Action in project Orekit by CS-SI.

the class FieldEventState method doEvent.

/**
 * Notify the user's listener of the event. The event occurs wholly within this method
 * call including a call to {@link FieldEventDetector#resetState(FieldSpacecraftState)}
 * if necessary.
 *
 * @param state the state at the time of the event. This must be at the same time as
 *              the current value of {@link #getEventDate()}.
 * @return the user's requested action and the new state if the action is {@link
 * org.orekit.propagation.events.handlers.FieldEventHandler.Action#RESET_STATE}. Otherwise
 * the new state is {@code state}. The stop time indicates what time propagation should
 * stop if the action is {@link org.orekit.propagation.events.handlers.FieldEventHandler.Action#STOP}.
 * This guarantees the integration will stop on or after the root, so that integration
 * may be restarted safely.
 * @exception OrekitException if the event detector throws one
 */
public EventOccurrence<T> doEvent(final FieldSpacecraftState<T> state) throws OrekitException {
    // check event is pending and is at the same time
    check(pendingEvent);
    check(state.getDate().equals(this.pendingEventTime));
    final FieldEventHandler.Action action = detector.eventOccurred(state, increasing == forward);
    final FieldSpacecraftState<T> newState;
    if (action == FieldEventHandler.Action.RESET_STATE) {
        newState = detector.resetState(state);
    } else {
        newState = state;
    }
    // clear pending event
    pendingEvent = false;
    pendingEventTime = null;
    // setup for next search
    earliestTimeConsidered = afterEvent;
    t0 = afterEvent;
    g0 = afterG;
    g0Positive = increasing;
    // check g0Positive set correctly
    check(g0.getReal() == 0.0 || g0Positive == (g0.getReal() > 0));
    return new EventOccurrence<T>(action, newState, stopTime);
}