1   /* Copyright 2002-2024 CS GROUP
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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.AbstractFieldIntegrator;
22  import org.hipparchus.ode.nonstiff.DormandPrince54FieldIntegrator;
23  import org.orekit.orbits.Orbit;
24  import org.orekit.orbits.OrbitType;
25  import org.orekit.propagation.numerical.NumericalPropagator;
26  
27  /**
28   * Builder for DormandPrince54FieldIntegrator.
29   *
30   * @author Pascal Parraud
31   * @author Vincent Cucchietti
32   * @since 12.0
33   * @param <T> type of the field elements
34   */
35  public class DormandPrince54FieldIntegratorBuilder<T extends CalculusFieldElement<T>>
36          extends AbstractVariableStepFieldIntegratorBuilder<T> {
37  
38      /**
39       * Build a new instance.
40       *
41       * @param minStep minimum step size (s)
42       * @param maxStep maximum step size (s)
43       * @param dP position error (m)
44       *
45       * @see DormandPrince54FieldIntegrator
46       * @see NumericalPropagator#tolerances(double, Orbit, OrbitType)
47       */
48      public DormandPrince54FieldIntegratorBuilder(final double minStep, final double maxStep, final double dP) {
49          super(minStep, maxStep, dP);
50      }
51  
52      /** {@inheritDoc} */
53      @Override
54      public AbstractFieldIntegrator<T> buildIntegrator(final Field<T> field, final Orbit orbit, final OrbitType orbitType) {
55          final double[][] tol = NumericalPropagator.tolerances(dP, orbit, orbitType);
56          return new DormandPrince54FieldIntegrator<>(field, minStep, maxStep, tol[0], tol[1]);
57      }
58  }