GillFieldIntegratorBuilder.java

  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. import org.hipparchus.CalculusFieldElement;
  19. import org.hipparchus.Field;
  20. import org.hipparchus.ode.nonstiff.GillFieldIntegrator;
  21. import org.orekit.orbits.Orbit;
  22. import org.orekit.orbits.OrbitType;
  23. import org.orekit.orbits.PositionAngleType;

  24. /**
  25.  * Builder for GillFieldIntegrator.
  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 GillFieldIntegratorBuilder<T extends CalculusFieldElement<T>>
  33.         extends AbstractFixedStepFieldIntegratorBuilder<T, GillFieldIntegrator<T>>
  34.         implements FieldExplicitRungeKuttaIntegratorBuilder<T> {

  35.     /**
  36.      * Constructor.
  37.      *
  38.      * @param step step size (s)
  39.      *
  40.      * @see GillFieldIntegrator
  41.      */
  42.     public GillFieldIntegratorBuilder(final double step) {
  43.         super(step);
  44.     }

  45.     /**
  46.      * Constructor using a "fielded" step.
  47.      * <p>
  48.      * <b>WARNING : Given "fielded" step must be using the same field as the one that will be used when calling
  49.      * {@link #buildIntegrator}</b>
  50.      *
  51.      * @param step step size (s)
  52.      *
  53.      * @see GillFieldIntegrator
  54.      */
  55.     public GillFieldIntegratorBuilder(final T step) {
  56.         super(step);
  57.     }

  58.     /** {@inheritDoc} */
  59.     @Override
  60.     public GillFieldIntegrator<T> buildIntegrator(final Field<T> field, final Orbit orbit, final OrbitType orbitType,
  61.                                                   final PositionAngleType angleType) {
  62.         return new GillFieldIntegrator<>(field, getFieldStep(field));
  63.     }

  64.     /** {@inheritDoc} */
  65.     @Override
  66.     public GillIntegratorBuilder toODEIntegratorBuilder() {
  67.         return new GillIntegratorBuilder(getStep());
  68.     }
  69. }