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.utils;
18  
19  import org.hipparchus.util.FastMath;
20  import org.junit.jupiter.api.AfterEach;
21  import org.junit.jupiter.api.Assertions;
22  import org.junit.jupiter.api.BeforeEach;
23  import org.junit.jupiter.api.Test;
24  
25  
26  public class ElevationMaskTest {
27  
28      @BeforeEach
29      public void setUp()
30          throws Exception {
31      }
32  
33      @AfterEach
34      public void tearDown()
35          throws Exception {
36      }
37  
38      @Test
39      public void testElevationMask() {
40          double [][] masqueData = {{FastMath.toRadians(  0), FastMath.toRadians(5)},
41                                    {FastMath.toRadians(180), FastMath.toRadians(3)},
42                                    {FastMath.toRadians(-90), FastMath.toRadians(4)}};
43  
44          ElevationMask mask = new ElevationMask(masqueData);
45  
46          Assertions.assertNotNull(mask);
47      }
48  
49      @Test
50      public void testMaskException() {
51          Assertions.assertThrows(IllegalArgumentException.class, () -> {
52              double [][] masque = {{FastMath.toRadians(   0), FastMath.toRadians(5)},
53                      {FastMath.toRadians( 360), FastMath.toRadians(4)}};
54  
55              new ElevationMask(masque);
56          });
57      }
58  
59      @Test
60      public void testGetElevation() {
61          double [][] masqueData = {{FastMath.toRadians(  0), FastMath.toRadians(5)},
62                                {FastMath.toRadians(180), FastMath.toRadians(3)},
63                                {FastMath.toRadians(-90), FastMath.toRadians(4)}};
64          ElevationMask mask = new ElevationMask(masqueData);
65  
66          double azimuth = FastMath.toRadians(90);
67          double elevation = mask.getElevation(azimuth);
68          Assertions.assertEquals(FastMath.toRadians(4), elevation, 1.0e-15);
69      }
70  
71  }