1   /* Copyright 2022-2026 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.signal;
18  
19  import org.hipparchus.CalculusFieldElement;
20  import org.hipparchus.Field;
21  import org.hipparchus.geometry.euclidean.threed.FieldVector3D;
22  import org.orekit.frames.Frame;
23  import org.orekit.time.FieldAbsoluteDate;
24  
25  /**
26   * Data container describing signal emission conditions.
27   *
28   * @param emissionDate    Signal emission date.
29   * @param emitterPosition Receiver position's vector at signal emission.
30   * @param referenceFrame  Frame where position is given.
31   * @author Romain Serra
32   * @see SignalEmissionCondition
33   * @since 14.0
34   */
35  public record FieldSignalEmissionCondition<T extends CalculusFieldElement<T>>(FieldAbsoluteDate<T> emissionDate,
36                                                                                FieldVector3D<T> emitterPosition,
37                                                                                Frame referenceFrame) {
38  
39      /**
40       * Constructor from non-Field values.
41       *
42       * @param field                   field
43       * @param signalEmissionCondition non-field emission condition
44       */
45      public FieldSignalEmissionCondition(final Field<T> field, final SignalEmissionCondition signalEmissionCondition) {
46          this(new FieldAbsoluteDate<>(field, signalEmissionCondition.emissionDate()),
47                  new FieldVector3D<>(field, signalEmissionCondition.emitterPosition()),
48                  signalEmissionCondition.referenceFrame());
49      }
50  
51      /**
52       * Method returning a non-field emission condition.
53       *
54       * @return non-field version
55       */
56      public SignalEmissionCondition toEmissionCondition() {
57          return new SignalEmissionCondition(emissionDate().toAbsoluteDate(), emitterPosition().toVector3D(),
58                  referenceFrame());
59      }
60  }