FixedTimeBoundaryOrbits.java
/* Copyright 2022-2024 Romain Serra
* Licensed to CS GROUP (CS) under one or more
* contributor license agreements. See the NOTICE file distributed with
* 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
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.orekit.control.indirect.shooting.boundary;
import org.orekit.orbits.Orbit;
/**
* Defines two-point boundary values for indirect shooting methods with Cartesian coordinates.
* This class represents the case where the initial and terminal times are fixed as well as the full
* Cartesian coordinates (position and velocity vectors in some frame), using {@link org.orekit.orbits.Orbit} as data holder.
* <br>
* The terminal condition can be anterior in time to the initial one, it just means that the shooting method will perform backward propagation.
* Also note that any acceleration vector passed in the {@link org.orekit.orbits.Orbit} is ignored.
*
* @author Romain Serra
* @since 12.2
* @see FixedTimeCartesianBoundaryStates
*/
public class FixedTimeBoundaryOrbits {
/** Initial orbit (with date and frame). */
private final Orbit initialOrbit;
/** Terminal orbit (with date and frame). */
private final Orbit terminalOrbit;
/**
* Constructor.
* @param initialOrbit initial condition
* @param terminalOrbit terminal condition
*/
public FixedTimeBoundaryOrbits(final Orbit initialOrbit,
final Orbit terminalOrbit) {
this.initialOrbit = initialOrbit;
this.terminalOrbit = terminalOrbit;
}
/**
* Getter for the initial condition.
* @return initial condition
*/
public Orbit getInitialOrbit() {
return initialOrbit;
}
/**
* Getter for the terminal condition.
* @return terminal condition
*/
public Orbit getTerminalOrbit() {
return terminalOrbit;
}
}