HaloXZPlaneCrossingDetector.java
/* Copyright 2002-2022 CS GROUP
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* this work for additional information regarding copyright ownership.
* CS licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
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package org.orekit.propagation.events;
import org.orekit.propagation.SpacecraftState;
import org.orekit.propagation.events.handlers.EventHandler;
import org.orekit.propagation.events.handlers.StopOnIncreasing;
/** Detector for XZ Plane crossing.
* @author Vincent Mouraux
* @since 10.2
*/
public class HaloXZPlaneCrossingDetector extends AbstractDetector<HaloXZPlaneCrossingDetector> {
/**
* Simple Constructor.
* @param maxCheck maximum checking interval (s)
* @param threshold convergence threshold (s)
*/
public HaloXZPlaneCrossingDetector(final double maxCheck, final double threshold) {
this(maxCheck, threshold, DEFAULT_MAX_ITER,
new StopOnIncreasing<HaloXZPlaneCrossingDetector>());
}
/**
* Private constructor with full parameters.
* <p>
* This constructor is private as users are expected to use the builder API
* with the various {@code withXxx()} methods to set up the instance in a
* readable manner without using a huge amount of parameters.
* </p>
* @param maxCheck maximum checking interval (s)
* @param threshold convergence threshold (s)
* @param maxIter maximum number of iterations in the event time search
* @param handler event handler to call at event occurrences
*/
private HaloXZPlaneCrossingDetector(final double maxCheck, final double threshold,
final int maxIter,
final EventHandler<? super HaloXZPlaneCrossingDetector> handler) {
super(maxCheck, threshold, maxIter, handler);
}
/** {@inheritDoc} */
@Override
protected HaloXZPlaneCrossingDetector create(final double newMaxCheck, final double newThreshold,
final int newMaxIter,
final EventHandler<? super HaloXZPlaneCrossingDetector> newHandler) {
return new HaloXZPlaneCrossingDetector(newMaxCheck, newThreshold, newMaxIter, newHandler);
}
/** Compute the value of the detection function.
* @param s the current state information: date, kinematics, attitude
* @return Position on Y axis
*/
public double g(final SpacecraftState s) {
return s.getPVCoordinates().getPosition().getY();
}
}