1   /* Copyright 2002-2025 CS GROUP
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.propagation.conversion;
18  
19  import org.hipparchus.CalculusFieldElement;
20  import org.hipparchus.Field;
21  import org.hipparchus.ode.nonstiff.AdamsMoultonFieldIntegrator;
22  import org.orekit.orbits.Orbit;
23  import org.orekit.propagation.ToleranceProvider;
24  
25  /**
26   * Builder for AdamsMoultonFieldIntegrator.
27   *
28   * @author Pascal Parraud
29   * @author Vincent Cucchietti
30   * @since 12.0
31   * @param <T> type of the field elements
32   */
33  public class AdamsMoultonFieldIntegratorBuilder<T extends CalculusFieldElement<T>>
34          extends AbstractLimitedVariableStepFieldIntegratorBuilder<T, AdamsMoultonFieldIntegrator<T>> {
35  
36      /**
37       * Build a new instance. Should only use this constructor with {@link Orbit}.
38       *
39       * @param nSteps number of steps
40       * @param minStep minimum step size (s)
41       * @param maxStep maximum step size (s)
42       * @param dP position error (m)
43       *
44       * @see AdamsMoultonFieldIntegrator
45       */
46      public AdamsMoultonFieldIntegratorBuilder(final int nSteps, final double minStep,
47                                                final double maxStep, final double dP) {
48          super(nSteps, minStep, maxStep, getDefaultToleranceProvider(dP));
49      }
50  
51      /**
52       * Build a new instance.
53       *
54       * @param nSteps number of steps
55       * @param minStep minimum step size (s)
56       * @param maxStep maximum step size (s)
57       * @param toleranceProvider integration tolerance provider
58       *
59       * @since 13.0
60       * @see AdamsMoultonFieldIntegrator
61       */
62      public AdamsMoultonFieldIntegratorBuilder(final int nSteps, final double minStep,
63                                                final double maxStep, final ToleranceProvider toleranceProvider) {
64          super(nSteps, minStep, maxStep, toleranceProvider);
65      }
66  
67      /** {@inheritDoc} */
68      @Override
69      protected AdamsMoultonFieldIntegrator<T> buildIntegrator(final Field<T> field, final double[][] tolerances) {
70          return new AdamsMoultonFieldIntegrator<>(field, getnSteps(), getMinStep(), getMaxStep(), tolerances[0], tolerances[1]);
71      }
72  
73      /** {@inheritDoc} */
74      @Override
75      public AdamsMoultonIntegratorBuilder toODEIntegratorBuilder() {
76          return new AdamsMoultonIntegratorBuilder(getnSteps(), getMinStep(), getMaxStep(), getToleranceProvider());
77      }
78  }