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.DormandPrince54FieldIntegrator;
22  import org.orekit.propagation.ToleranceProvider;
23  
24  /**
25   * Builder for DormandPrince54FieldIntegrator.
26   *
27   * @author Pascal Parraud
28   * @author Vincent Cucchietti
29   * @since 12.0
30   * @param <T> type of the field elements
31   */
32  public class DormandPrince54FieldIntegratorBuilder<T extends CalculusFieldElement<T>>
33          extends AbstractVariableStepFieldIntegratorBuilder<T, DormandPrince54FieldIntegrator<T>>
34          implements FieldExplicitRungeKuttaIntegratorBuilder<T> {
35  
36      /**
37       * Build a new instance using default integration tolerances.
38       *
39       * @param minStep minimum step size (s)
40       * @param maxStep maximum step size (s)
41       * @param dP position error (m)
42       *
43       * @see DormandPrince54FieldIntegrator
44       */
45      public DormandPrince54FieldIntegratorBuilder(final double minStep, final double maxStep, final double dP) {
46          super(minStep, maxStep, getDefaultToleranceProvider(dP));
47      }
48  
49      /**
50       * Build a new instance.
51       *
52       * @param minStep minimum step size (s)
53       * @param maxStep maximum step size (s)
54       * @param toleranceProvider integration tolerance provider
55       * @since 13.0
56       * @see DormandPrince54FieldIntegrator
57       */
58      public DormandPrince54FieldIntegratorBuilder(final double minStep, final double maxStep,
59                                                   final ToleranceProvider toleranceProvider) {
60          super(minStep, maxStep, toleranceProvider);
61      }
62  
63      /** {@inheritDoc} */
64      @Override
65      protected DormandPrince54FieldIntegrator<T> buildIntegrator(final Field<T> field, final double[][] tolerances) {
66          return new DormandPrince54FieldIntegrator<>(field, getMinStep(), getMaxStep(), tolerances[0], tolerances[1]);
67      }
68  
69      /** {@inheritDoc} */
70      @Override
71      public DormandPrince54IntegratorBuilder toODEIntegratorBuilder() {
72          return new DormandPrince54IntegratorBuilder(getMinStep(), getMaxStep(), getToleranceProvider());
73      }
74  }