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.ode.nonstiff.GraggBulirschStoerIntegrator;
20  import org.orekit.propagation.ToleranceProvider;
21  
22  /** Builder for GraggBulirschStoerIntegrator.
23   * @author Pascal Parraud
24   * @since 6.0
25   */
26  public class GraggBulirschStoerIntegratorBuilder extends AbstractVariableStepIntegratorBuilder<GraggBulirschStoerIntegrator> {
27  
28      /** Build a new instance using a default integration tolerance provider.
29       * @param minStep minimum step size (s)
30       * @param maxStep maximum step size (s)
31       * @param dP position error (m)
32       * @see GraggBulirschStoerIntegrator
33       */
34      public GraggBulirschStoerIntegratorBuilder(final double minStep, final double maxStep, final double dP) {
35          super(minStep, maxStep, getDefaultToleranceProvider(dP));
36      }
37  
38      /** Build a new instance.
39       * @param minStep minimum step size (s)
40       * @param maxStep maximum step size (s)
41       * @param toleranceProvider integration tolerance provider
42       *
43       * @since 13.0
44       * @see GraggBulirschStoerIntegrator
45       */
46      public GraggBulirschStoerIntegratorBuilder(final double minStep, final double maxStep,
47                                                 final ToleranceProvider toleranceProvider) {
48          super(minStep, maxStep, toleranceProvider);
49      }
50  
51      @Override
52      protected GraggBulirschStoerIntegrator buildIntegrator(final double[][] tolerances) {
53          return new GraggBulirschStoerIntegrator(getMinStep(), getMaxStep(), tolerances[0], tolerances[1]);
54      }
55  
56  }