CombinedDerivatives.java
/* Copyright 2002-2024 CS GROUP
* 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
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*/
package org.orekit.propagation.integration;
/** Container for additional derivatives.
* @see AdditionalDerivativesProvider
* @author Luc Maisonobe
* @since 11.2
*/
public class CombinedDerivatives {
/** Additional state derivatives. */
private double[] additionalDerivatives;
/** Primary state derivatives increments (may be null). */
private final double[] mainStateDerivativesIncrements;
/** Simple constructor.
* @param additionalDerivatives additional state derivatives
* @param mainStateDerivativesIncrements increments related to the main state parameters
* (may be null if main state should not be incremented)
*/
public CombinedDerivatives(final double[] additionalDerivatives,
final double[] mainStateDerivativesIncrements) {
this.mainStateDerivativesIncrements = mainStateDerivativesIncrements == null ?
null : mainStateDerivativesIncrements.clone();
this.additionalDerivatives = additionalDerivatives.clone();
}
/** Get the derivatives increments related to the main state.
* @return primary state derivatives increments, or null if
* main state should not be incremented
*/
public double[] getMainStateDerivativesIncrements() {
return mainStateDerivativesIncrements == null ?
null : mainStateDerivativesIncrements.clone();
}
/** Get the derivatives related to the additional state.
* @return additional state derivatives
*/
public double[] getAdditionalDerivatives() {
return additionalDerivatives.clone();
}
}