Examples with GFunction org.orekit.propagation.events.FunctionalDetector.GFunction used on opensource projects

Example 1 with GFunction

use of org.orekit.propagation.events.FunctionalDetector.GFunction in project Orekit by CS-SI.

the class FunctionalDetectorTest method testFunctionalDetector.

/**
 * Check {@link FunctionalDetector}.
 *
 * @throws OrekitException on error.
 */
@Test
public void testFunctionalDetector() throws OrekitException {
    // setup
    GFunction g = SpacecraftState::getMass;
    EventHandler<EventDetector> handler = (s, detector, increasing) -> Action.STOP;
    // action
    FunctionalDetector detector = new FunctionalDetector().withMaxIter(1).withThreshold(2).withMaxCheck(3).withGFunction(g).withHandler(handler);
    // verify
    MatcherAssert.assertThat(detector.getMaxIterationCount(), CoreMatchers.is(1));
    MatcherAssert.assertThat(detector.getThreshold(), CoreMatchers.is(2.0));
    MatcherAssert.assertThat(detector.getMaxCheckInterval(), CoreMatchers.is(3.0));
    MatcherAssert.assertThat(detector.getHandler(), CoreMatchers.is(handler));
    MatcherAssert.assertThat(detector.getGFunction(), CoreMatchers.is(g));
    SpacecraftState state = new SpacecraftState(new CartesianOrbit(new PVCoordinates(new Vector3D(1, 2, 3), new Vector3D(4, 5, 6)), FramesFactory.getGCRF(), AbsoluteDate.CCSDS_EPOCH, 4), 5);
    MatcherAssert.assertThat(detector.g(state), CoreMatchers.is(5.0));
    MatcherAssert.assertThat(detector.eventOccurred(null, false), CoreMatchers.is(Action.STOP));
}