1   /* Copyright 2022-2025 Romain Serra
2    * Licensed to CS GROUP (CS) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * CS licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *   http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.orekit.control.indirect.adjoint.cost;
18  
19  import org.hipparchus.geometry.euclidean.threed.Vector3D;
20  
21  public class TestCost implements CartesianCost {
22  
23      @Override
24      public String getAdjointName() {
25          return "";
26      }
27  
28      @Override
29      public int getAdjointDimension() {
30          return getMassFlowRateFactor() == 0 ? 6 : 7;
31      }
32  
33      @Override
34      public double getMassFlowRateFactor() {
35          return 10.;
36      }
37  
38      @Override
39      public Vector3D getThrustAccelerationVector(double[] adjointVariables, double mass) {
40          return new Vector3D(1, 2, 3);
41      }
42  
43      @Override
44      public void updateAdjointDerivatives(double[] adjointVariables, double mass, double[] adjointDerivatives) {
45  
46      }
47  
48      @Override
49      public double getHamiltonianContribution(double[] adjointVariables, double mass) {
50          return 0;
51      }
52  
53  }