1   /* Copyright 2022-2026 Thales Alenia Space
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.orbits;
18  
19  import org.hipparchus.geometry.euclidean.threed.Vector3D;
20  import org.orekit.time.AbsoluteDate;
21  import org.orekit.utils.PVCoordinates;
22  import org.orekit.utils.ParameterDriversList.DelegatingDriver;
23  
24  import java.util.List;
25  
26  /** Factory for Cartesian orbits.
27   * @since 14.0
28   */
29  public class CartesianOrbitFactory extends AbstractOrbitFactory<CartesianOrbit> {
30  
31      /** Simple constructor.
32       * @param template template orbit
33       * @param positionScale position scale used to scale the orbital drivers
34       */
35      public CartesianOrbitFactory(final CartesianOrbit template, final double positionScale) {
36          super(positionScale, template, PositionAngleType.ECCENTRIC);
37      }
38  
39      /** {@inheritDoc} */
40      @Override
41      public CartesianOrbit createFromDrivers() {
42          final AbsoluteDate           date    = getDate();
43          final List<DelegatingDriver> drivers = getOrbitalParametersDrivers().getDrivers();
44          return new CartesianOrbit(new PVCoordinates(new Vector3D(drivers.get(0).getValue(date),
45                                                                   drivers.get(1).getValue(date),
46                                                                   drivers.get(2).getValue(date)),
47                                                      new Vector3D(drivers.get(3).getValue(date),
48                                                                   drivers.get(4).getValue(date),
49                                                                   drivers.get(5).getValue(date))),
50                                    getFrame(), getDate(), getMu());
51      }
52  
53  }