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.events;
18  
19  import org.orekit.frames.TopocentricFrame;
20  import org.orekit.propagation.events.handlers.EventHandler;
21  
22  /** Abstract class for detectors using a topocentric frame.
23   *
24   * @author Romain Serra
25   * @since 13.1
26   * @see TopocentricFrame
27   */
28  public abstract class AbstractTopocentricDetector<T extends AbstractDetector<T>> extends AbstractDetector<T> {
29  
30      /** Reference topocentric frame. */
31      private final TopocentricFrame topocentricFrame;
32  
33      /** Protected constructor with full parameters.
34       * @param detectionSettings event detection settings
35       * @param handler event handler to call at event occurrences
36       * @param topocentricFrame topocentric frame
37       */
38      protected AbstractTopocentricDetector(final EventDetectionSettings detectionSettings, final EventHandler handler,
39                                            final TopocentricFrame topocentricFrame) {
40          super(detectionSettings, handler);
41          this.topocentricFrame = topocentricFrame;
42      }
43  
44      /**
45       * Getter for the topocentric frame.
46       * @return frame
47       */
48      public TopocentricFrame getTopocentricFrame() {
49          return topocentricFrame;
50      }
51  
52  }