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.propagation.conversion;
18  
19  import org.hipparchus.CalculusFieldElement;
20  import org.hipparchus.Field;
21  import org.hipparchus.ode.nonstiff.FieldExplicitRungeKuttaIntegrator;
22  import org.orekit.orbits.FieldOrbit;
23  import org.orekit.orbits.Orbit;
24  import org.orekit.orbits.OrbitType;
25  import org.orekit.orbits.PositionAngleType;
26  import org.orekit.utils.FieldAbsolutePVCoordinates;
27  
28  /**
29   * This interface is the top-level abstraction to build first order integrators for propagators conversion.
30   *
31   * @author Romain Serra
32   * @since 13.0
33   * @param <T> type of the field elements
34   */
35  public interface FieldExplicitRungeKuttaIntegratorBuilder<T extends CalculusFieldElement<T>> extends FieldODEIntegratorBuilder<T> {
36  
37      /** {@inheritDoc} */
38      FieldExplicitRungeKuttaIntegrator<T> buildIntegrator(Field<T> field, Orbit orbit, OrbitType orbitType);
39  
40      /** {@inheritDoc} */
41      FieldExplicitRungeKuttaIntegrator<T> buildIntegrator(Field<T> field, Orbit orbit, OrbitType orbitType,
42                                            PositionAngleType angleType);
43  
44      /** {@inheritDoc} */
45      FieldExplicitRungeKuttaIntegrator<T> buildIntegrator(FieldOrbit<T> orbit, OrbitType orbitType);
46  
47      /** {@inheritDoc} */
48      FieldExplicitRungeKuttaIntegrator<T> buildIntegrator(FieldAbsolutePVCoordinates<T> fieldAbsolutePVCoordinates);
49  
50      /** {@inheritDoc} */
51      ExplicitRungeKuttaIntegratorBuilder toODEIntegratorBuilder();
52  }