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.files.ccsds.ndm.odm.ocm;
18  
19  /** Container for covariance matrix elements indices.
20   * @author Luc Maisonobe
21   * @since 11.0
22   */
23  class CovarianceIndexer {
24  
25      /** Matrix dimension. */
26      private final int dimension;
27  
28      /** Row index. */
29      private int row;
30  
31      /** Column index. */
32      private int column;
33  
34      /** Flag for cross-correlation trems. */
35      private boolean crossCorrelation;
36  
37      /** Build an indexer pointing at first row first column,.
38       * @param dimension matrix dimension
39       */
40      CovarianceIndexer(final int dimension) {
41          this.dimension        = dimension;
42          this.row              = 0;
43          this.column           = 0;
44          this.crossCorrelation = false;
45      }
46  
47      /** Get matrix dimension.
48       * @return matrix dimension
49       */
50      public int getDimension() {
51          return dimension;
52      }
53  
54      /** Get row index.
55       * @return row index
56       */
57      public int getRow() {
58          return row;
59      }
60  
61      /** Set row index.
62       * @param row row index
63       */
64      public void setRow(final int row) {
65          this.row = row;
66      }
67  
68      /** Get column index.
69       * @return column index
70       */
71      public int getColumn() {
72          return column;
73      }
74  
75      /** Set column index.
76       * @param column column index
77       */
78      public void setColumn(final int column) {
79          this.column = column;
80      }
81  
82      /** Set cross-correlation flag.
83       * @param crossCorrelation if true, element is a cross-correlation term
84       */
85      public void setCrossCorrelation(final boolean crossCorrelation) {
86          this.crossCorrelation = crossCorrelation;
87      }
88  
89      /** Check if element is a cross-correlation term.
90       * @return true if element is a cross-correlation term
91       */
92      public boolean isCrossCorrelation() {
93          return crossCorrelation;
94      }
95  
96  }