AdamsMoultonIntegratorBuilder.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.ode.nonstiff.AdamsMoultonIntegrator;
  19. import org.orekit.propagation.ToleranceProvider;

  20. /** Builder for AdamsMoultonIntegrator.
  21.  * @author Pascal Parraud
  22.  * @since 6.0
  23.  */
  24. public class AdamsMoultonIntegratorBuilder extends AbstractVariableStepIntegratorBuilder<AdamsMoultonIntegrator> {

  25.     /** Number of steps. */
  26.     private final int nSteps;

  27.     /** Build a new instance using default integration tolerances.
  28.      * @param nSteps number of steps
  29.      * @param minStep minimum step size (s)
  30.      * @param maxStep maximum step size (s)
  31.      * @param dP position error (m)
  32.      * @see AdamsMoultonIntegrator
  33.      */
  34.     public AdamsMoultonIntegratorBuilder(final int nSteps, final double minStep,
  35.                                          final double maxStep, final double dP) {
  36.         this(nSteps, minStep, maxStep, getDefaultToleranceProvider(dP));
  37.     }

  38.     /** Build a new instance using default integration tolerances.
  39.      * @param nSteps number of steps
  40.      * @param minStep minimum step size (s)
  41.      * @param maxStep maximum step size (s)
  42.      * @param toleranceProvider integration tolerance provider
  43.      * @see AdamsMoultonIntegrator
  44.      * @since 13.0
  45.      */
  46.     public AdamsMoultonIntegratorBuilder(final int nSteps, final double minStep,
  47.                                          final double maxStep, final ToleranceProvider toleranceProvider) {
  48.         super(minStep, maxStep, toleranceProvider);
  49.         this.nSteps  = nSteps;
  50.     }

  51.     /** {@inheritDoc} */
  52.     @Override
  53.     protected AdamsMoultonIntegrator buildIntegrator(final double[][] tolerances) {
  54.         return new AdamsMoultonIntegrator(nSteps, getMinStep(), getMaxStep(), tolerances[0], tolerances[1]);
  55.     }

  56. }