1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<title>GeographicTranslator: C:/master/geotrans3.7/CCS/src/dtcc/egm2008_aoi_grid_package.cpp Source File</title>
<b><p style="text-align:center;color:green;font-size:20px">UNCLASSIFIED</p></b>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
$(document).ready(function() { searchBox.OnSelectItem(0); });
</script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td style="padding-left: 0.5em;">
<div id="projectname">GeographicTranslator
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.2 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="index.html"><span>Main Page</span></a></li>
<li><a href="namespaces.html"><span>Namespaces</span></a></li>
<li><a href="annotated.html"><span>Classes</span></a></li>
<li class="current"><a href="files.html"><span>Files</span></a></li>
<li>
<div id="MSearchBox" class="MSearchBoxInactive">
<span class="left">
<img id="MSearchSelect" src="search/mag_sel.png"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
alt=""/>
<input type="text" id="MSearchField" value="Search" accesskey="S"
onfocus="searchBox.OnSearchFieldFocus(true)"
onblur="searchBox.OnSearchFieldFocus(false)"
onkeyup="searchBox.OnSearchFieldChange(event)"/>
</span><span class="right">
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
</span>
</div>
</li>
</ul>
</div>
<div id="navrow2" class="tabs2">
<ul class="tablist">
<li><a href="files.html"><span>File List</span></a></li>
<li><a href="globals.html"><span>File Members</span></a></li>
</ul>
</div>
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Namespaces</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark"> </span>Friends</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(9)"><span class="SelectionMark"> </span>Macros</a></div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div id="nav-path" class="navpath">
<ul>
<li class="navelem"><a class="el" href="dir_edf3df7db5b0053f7cba67b155deccfc.html">master</a></li><li class="navelem"><a class="el" href="dir_8b3490cac915c107683d68df3d9c98a6.html">geotrans3.7</a></li><li class="navelem"><a class="el" href="dir_d0951f0e396e7f3ab5db438f6b9f5363.html">CCS</a></li><li class="navelem"><a class="el" href="dir_3b11bca187df89c3daa83d17707827d4.html">src</a></li><li class="navelem"><a class="el" href="dir_ce1728a50ed0f8e5fbefa80fc2874faa.html">dtcc</a></li> </ul>
</div>
</div><!-- top -->
<div class="header">
<div class="headertitle">
<div class="title">egm2008_aoi_grid_package.cpp</div> </div>
</div><!--header-->
<div class="contents">
<a href="egm2008__aoi__grid__package_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> </div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// CLASSIFICATION: UNCLASSIFIED</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> </div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// //</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// File name: egm2008_aoi_grid_package.cpp //</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// //</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Description of this module: //</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// Utility software that interpolates EGM 2008 geoid //</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// heights from one of NGA's reformatted geoid height grids. //</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// //</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// This interpolator uses Area of Interest (AOI) //</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// geoid height grids, not the worldwide geoid height grid. //</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// //</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// This interpolator does not load an Area of Interest (AOI) //</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// geoid height grid until a user first requests a geoid height. //</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// The interpolator then loads an AOI grid centered near the point of // </span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// interest, and it interpolates local geoid height from the AOI grid. //</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">// This interpolator re-uses the AOI grid until a subsequent point of //</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// interest lies outside the AOI. The interpolator then loads a //</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// new AOI grid centered at the new horizontal location of interest. //</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// //</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// This interpolator gives exactly the same results as //</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">// the companion egm2008_full_grid_package's interpolator. //</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">// However, the AOI interpolator requires far less computer memory. //</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// //</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">// Revision History: //</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment">// Date Name Description //</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">// ----------- ------------ ----------------------------------------------//</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">// 19 Nov 2010 RD Craig Release //</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">// 27 Jan 2011 S. Gillis BAEts28121, Terrain Service rearchitecture //</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment">// 11 Feb 2011 RD Craig Updates following code review //</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment">// 30 May 2013 RD Craig MSP 1.3: ER29758 //</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">// Added second constructor to //</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">// permit multiple geoid-height grids //</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">// when assessing relative interpolation errors. //</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment">// //</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"></span> </div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment">// This file contains definitions</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment">// for functions in the Egm2008AoiGrid class.</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#include <fstream></span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#ifdef IRIXN32</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor"></span><span class="preprocessor">#include <math.h></span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor"></span><span class="preprocessor">#include <cmath></span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#include "<a class="code" href="_c_c_s_thread_lock_8h.html">CCSThreadLock.h</a>"</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#include "<a class="code" href="_coordinate_conversion_exception_8h.html">CoordinateConversionException.h</a>"</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#include "<a class="code" href="egm2008__aoi__grid__package_8h.html">egm2008_aoi_grid_package.h</a>"</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">namespace </span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> {</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> BYTES_PER_DOUBLE = <span class="keyword">sizeof</span>( double );</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> BYTES_PER_FLOAT = <span class="keyword">sizeof</span>( float );</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> BYTES_PER_INT = <span class="keyword">sizeof</span>( int );</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> BYTES_IN_HEADER = </div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  ( 3 * BYTES_PER_INT + 2 * BYTES_PER_DOUBLE );</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> NOM_AOI_COLS1 = 100; <span class="comment">// nominal # columns in 1' x 1' AOI grid </span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> NOM_AOI_ROWS1 = 100; <span class="comment">// nominal # rows in 1' x 1' AOI grid</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> NOM_AOI_COLS2_5 = 50; <span class="comment">// nominal # columns in 2.5' x 2.5' AOI grid </span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> NOM_AOI_ROWS2_5 = 50; <span class="comment">// nominal # rows in 2.5' x 2.5' AOI grid</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="_m_g_r_s_8cpp.html#a598a3330b3c21701223ee0ca14316eca">PI</a> = 3.14159265358979323;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> PIDIV2 = PI / 2.0;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> TWOPI = 2.0 * <a class="code" href="_m_g_r_s_8cpp.html#a598a3330b3c21701223ee0ca14316eca">PI</a>;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> DEG_PER_RAD = 180.0 / <a class="code" href="_m_g_r_s_8cpp.html#a598a3330b3c21701223ee0ca14316eca">PI</a>;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> RAD_PER_DEG = PI / 180.0;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> MTR_PER_NM = 1852.0; <span class="comment">// meters per International nautical mile</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="_m_g_r_s_8cpp.html#a002b2f4894492820fe708b1b7e7c5e70">EPSILON</a> = 1.0e-15; <span class="comment">// ~4 times machine epsilon</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> SEMI_MAJOR_AXIS = 6378137.0; <span class="comment">// WGS-84</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> FLATTENING = 1.0 / 298.257223563; <span class="comment">// WGS-84</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> }</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="keyword">using namespace </span>MSP;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment">// ***************************</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment">// ** Public user functions **</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment">// ***************************</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment">// **************************************</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment">// * Default Egm2008AoiGrid constructor *</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment">// **************************************</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div>
<div class="line"><a name="l00096"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ae8c89bbdb3190a557686fbb096afc575"> 96</a></span> <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ae8c89bbdb3190a557686fbb096afc575">Egm2008AoiGrid::Egm2008AoiGrid</a>( <span class="keywordtype">void</span> )</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment">// : Egm2008GeoidGrid() // base class initializer</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> {</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="comment">// November 19, 2010: Version 1.00</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">// February 11, 2011: Version 1.01</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordtype">int</span> status;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="comment">// This function implements the</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="comment">// default Egm2008AoiGrid constructor.</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="comment">// The base class constructor</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="comment">// initialized most data members.</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="comment">// Initialize AOI grid parameters .....</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a> = 10000000; <span class="comment">// these invalid values</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ad5b89027dcb469390cab78a8d887061f">_maxAoiRowIndex</a> = -10000000; <span class="comment">// will force the first </span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a> = 10000000; <span class="comment">// geoid height request</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a21c128d8e3715ecab0ea438ba08d866b">_maxAoiColIndex</a> = -10000000; <span class="comment">// to load a new AOI grid</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a> = 0;</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a3558b30ea151fa1ba2dc596ed25c04e6">_nAoiRows</a> = 0;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a5fb7870a9e94a08e3e606a1ad715864a">_nomAoiCols</a> = 0;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a97e78615987edf1321fc4075f7800219">_nomAoiRows</a> = 0;</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a> = NULL;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="comment">// Get worldwide grid's metadata .....</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  status = this-><a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a082b964f0e6d2772abde17137ede276e">loadGridMetadata</a>();</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">if</span> ( status != 0 )</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  {</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">throw</span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_conversion_exception.html">MSP::CCS::CoordinateConversionException</a>(</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="stringliteral">"Error: Egm2008AoiGrid: constructor failed."</span> );</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  }</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> } <span class="comment">// End of Egm2008AoiGrid constuctor</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment">// ******************************************</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment">// * Non-default Egm2008AoiGrid constructor *</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment">// ******************************************</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div>
<div class="line"><a name="l00143"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#afb8ad2bf891c4f4a6b21ef313c82996b"> 143</a></span> <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ae8c89bbdb3190a557686fbb096afc575">Egm2008AoiGrid::Egm2008AoiGrid</a>( </div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">const</span> std::string &gridFname ) <span class="comment">// input</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> : <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html">Egm2008GeoidGrid</a>( gridFname ) <span class="comment">// base class initializer</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> {</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="comment">// November 19, 2010: Version 1.00</span></div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// February 11, 2011: Version 1.01</span></div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// May 30, 2013: Version 2.00</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="comment">// Definition:</span></div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="comment">// gridFname: The support geoid-height grid's file name; this</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="comment">// file name should not contain the directory path;</span></div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="comment">// the base-class constructor will prepend the </span></div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="comment">// path specified by environment variable MSPCCS_DATA.</span></div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordtype">int</span> status;</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="comment">// This function implements the</span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="comment">// non-default Egm2008AoiGrid constructor.</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="comment">// The base class constructor</span></div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="comment">// initialized most data members.</span></div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="comment">// Initialize AOI grid parameters .....</span></div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a> = 10000000; <span class="comment">// these invalid values</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ad5b89027dcb469390cab78a8d887061f">_maxAoiRowIndex</a> = -10000000; <span class="comment">// will force the first </span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a> = 10000000; <span class="comment">// geoid height request</span></div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a21c128d8e3715ecab0ea438ba08d866b">_maxAoiColIndex</a> = -10000000; <span class="comment">// to load a new AOI grid</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a> = 0;</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a3558b30ea151fa1ba2dc596ed25c04e6">_nAoiRows</a> = 0;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a5fb7870a9e94a08e3e606a1ad715864a">_nomAoiCols</a> = 0;</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a97e78615987edf1321fc4075f7800219">_nomAoiRows</a> = 0;</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a> = NULL;</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="comment">// Get worldwide grid's metadata .....</span></div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> </div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  status = this-><a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a082b964f0e6d2772abde17137ede276e">loadGridMetadata</a>();</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">if</span> ( status != 0 )</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  {</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">throw</span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_conversion_exception.html">MSP::CCS::CoordinateConversionException</a>(</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="stringliteral">"Error: Egm2008AoiGrid: constructor failed."</span> );</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  }</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> } <span class="comment">// End of non-default Egm2008AoiGrid constuctor</span></div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment">// ***********************************</span></div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment">// * Egm2008AoiGrid copy constructor *</span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment">// ***********************************</span></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ae8c89bbdb3190a557686fbb096afc575">Egm2008AoiGrid::Egm2008AoiGrid</a> </div>
<div class="line"><a name="l00200"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a4ebb4cd7f38b5d0784ca5b0cc6afd1b0"> 200</a></span>  ( <span class="keyword">const</span> <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html">Egm2008AoiGrid</a>& oldGrid ) <span class="comment">// input</span></div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> </div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> : <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html">Egm2008GeoidGrid</a>( oldGrid ) <span class="comment">// base class initializer</span></div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> {</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="comment">// November 19, 2010: Version 1.00</span></div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> </div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="comment">// This function implements </span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="comment">// the Egm2008AoiGrid copy constructor.</span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="comment">// Definition:</span></div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> </div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="comment">// oldGrid: The Egm2008AoiGrid object being copied.</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> </div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordtype">int</span> kount;</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="comment">// Copy AOI grid's parameters .....</span></div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> </div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  _maxAoiColIndex = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a21c128d8e3715ecab0ea438ba08d866b">_maxAoiColIndex</a>;</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  _minAoiColIndex = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a>;</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  _maxAoiRowIndex = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ad5b89027dcb469390cab78a8d887061f">_maxAoiRowIndex</a>;</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  _minAoiRowIndex = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a>;</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  _nAoiCols = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a>;</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  _nAoiRows = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a3558b30ea151fa1ba2dc596ed25c04e6">_nAoiRows</a>;</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  _nomAoiCols = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a5fb7870a9e94a08e3e606a1ad715864a">_nomAoiCols</a>;</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  _nomAoiRows = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a97e78615987edf1321fc4075f7800219">_nomAoiRows</a>;</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  _heightGrid = NULL;</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="comment">// Copy AOI grid's geoid separations .....</span></div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> </div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="comment">// (the AOI geoid height grid </span></div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="comment">// will not have been loaded if copying</span></div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="comment">// precedes first geoid height interpolation)</span></div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">try</span></div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  {</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">if</span> ( NULL != oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a> )</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  {</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  kount = _nAoiRows * _nAoiCols;</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> </div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  _heightGrid = <span class="keyword">new</span> <span class="keywordtype">float</span>[ kount ];</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> </div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordflow">for</span> ( i = 0; i < kount; i++ )</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  {</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  _heightGrid[ i ] = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a>[ i ];</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  }</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  }</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  }</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordflow">catch</span> (...)</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  {</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a536750d04da7d4d06398ec6725bc1c1d">_mutex</a>.<a class="code" href="class_m_s_p_1_1_c_c_s_thread_mutex.html#adc09990c6c48d12e5a96e20138d0f522">unlock</a>();</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> </div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keywordflow">throw</span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_conversion_exception.html">MSP::CCS::CoordinateConversionException</a>(</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="stringliteral">"Error: Egm2008AoiGrid: copy contructor failed"</span>);</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  }</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a536750d04da7d4d06398ec6725bc1c1d">_mutex</a>.<a class="code" href="class_m_s_p_1_1_c_c_s_thread_mutex.html#adc09990c6c48d12e5a96e20138d0f522">unlock</a>(); <span class="comment">// Use CCSThreadMutex in copy constructors</span></div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> </div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> } <span class="comment">// End of Egm2008AoiGrid copy constuctor</span></div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> </div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> </div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="comment">// *****************************</span></div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="comment">// * Egm2008AoiGrid destructor *</span></div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="comment">// *****************************</span></div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div>
<div class="line"><a name="l00270"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a02cf962a245ac79f522f3afaca188bdd"> 270</a></span> <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a02cf962a245ac79f522f3afaca188bdd">Egm2008AoiGrid::~Egm2008AoiGrid</a> (<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> {</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="comment">// November 19, 2010: Version 1.00</span></div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> </div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="comment">// This function implements </span></div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="comment">// the Egm2008AoiGrid destructor. </span></div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> </div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keyword">delete</span>[] <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a>;</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> </div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> } <span class="comment">// End of Egm2008AoiGrid destructor</span></div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> </div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> </div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="comment">// **************************************</span></div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="comment">// * Egm2008AoiGrid assignment operator *</span></div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="comment">// **************************************</span></div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> </div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html">Egm2008AoiGrid</a>&</div>
<div class="line"><a name="l00287"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a5ddc8c1c12f370ad9a7fe7b634f3263f"> 287</a></span> <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a5ddc8c1c12f370ad9a7fe7b634f3263f">Egm2008AoiGrid::operator= </a>( <span class="keyword">const</span> <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html">Egm2008AoiGrid</a>& oldGrid )</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> {</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="comment">// November 19, 2010: Version 1.00</span></div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> </div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="comment">// Definition:</span></div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span> </div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="comment">// oldGrid: The Egm2008AoiGrid object being assigned.</span></div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> </div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordtype">int</span> kount;</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> </div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="comment">// This function implements </span></div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="comment">// the Egm2008AoiGrid assignment operator.</span></div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> </div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordflow">if</span> ( <span class="keyword">this</span> == & oldGrid ) <span class="keywordflow">return</span> ( *<span class="keyword">this</span> );</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> </div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="comment">// Assign most base class data members .....</span></div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> </div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#af48845ce19fa0f8ff59ce426e0dae35f">Egm2008GeoidGrid::operator= </a>( oldGrid );</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> </div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="comment">// Assign AOI grid parameters .....</span></div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span> </div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a21c128d8e3715ecab0ea438ba08d866b">_maxAoiColIndex</a> = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a21c128d8e3715ecab0ea438ba08d866b">_maxAoiColIndex</a>;</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a> = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a>;</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> </div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ad5b89027dcb469390cab78a8d887061f">_maxAoiRowIndex</a> = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ad5b89027dcb469390cab78a8d887061f">_maxAoiRowIndex</a>;</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a> = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a>;</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span> </div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a> = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a>;</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a3558b30ea151fa1ba2dc596ed25c04e6">_nAoiRows</a> = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a3558b30ea151fa1ba2dc596ed25c04e6">_nAoiRows</a>;</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span> </div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a5fb7870a9e94a08e3e606a1ad715864a">_nomAoiCols</a> = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a5fb7870a9e94a08e3e606a1ad715864a">_nomAoiCols</a>;</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a97e78615987edf1321fc4075f7800219">_nomAoiRows</a> = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a97e78615987edf1321fc4075f7800219">_nomAoiRows</a>;</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span> </div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="comment">// Assign AOI grid's geoid separations .....</span></div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="comment">// (the AOI geoid height grid will</span></div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="comment">// not have been loaded if assignment </span></div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="comment">// precedes first geoid height interpolation)</span></div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span> </div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordflow">try</span></div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  {</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="keyword">delete</span>[] <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a>; <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a> = NULL;</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span> </div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="keywordflow">if</span> ( NULL != oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a> )</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  {</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  kount = <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a3558b30ea151fa1ba2dc596ed25c04e6">_nAoiRows</a> * <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a>;</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span> </div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a> = <span class="keyword">new</span> <span class="keywordtype">float</span>[ kount ];</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span> </div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keywordflow">for</span> ( i = 0; i < kount; i++ )</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  {</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a>[ i ] = oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a>[ i ];</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  }</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  }</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  }</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keywordflow">catch</span> (...)</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  {</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a536750d04da7d4d06398ec6725bc1c1d">_mutex</a>.<a class="code" href="class_m_s_p_1_1_c_c_s_thread_mutex.html#adc09990c6c48d12e5a96e20138d0f522">unlock</a>();</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a536750d04da7d4d06398ec6725bc1c1d">_mutex</a>.<a class="code" href="class_m_s_p_1_1_c_c_s_thread_mutex.html#adc09990c6c48d12e5a96e20138d0f522">unlock</a>();</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> </div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keywordflow">throw</span> <a class="code" href="class_m_s_p_1_1_c_c_s_1_1_coordinate_conversion_exception.html">MSP::CCS::CoordinateConversionException</a>(</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="stringliteral">"Error: Egm2008AoiGrid: assignment operator failed"</span>);</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  }</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span> </div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a536750d04da7d4d06398ec6725bc1c1d">_mutex</a>.<a class="code" href="class_m_s_p_1_1_c_c_s_thread_mutex.html#adc09990c6c48d12e5a96e20138d0f522">unlock</a>(); <span class="comment">// Use CCSThreadMutex function in assignment operations</span></div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  oldGrid.<a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a536750d04da7d4d06398ec6725bc1c1d">_mutex</a>.<a class="code" href="class_m_s_p_1_1_c_c_s_thread_mutex.html#adc09990c6c48d12e5a96e20138d0f522">unlock</a>();</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> </div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">return</span>( *<span class="keyword">this</span> );</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span> </div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span> } <span class="comment">// End of Egm2008AoiGrid assignment operator</span></div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span> </div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> </div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span> <span class="comment">// *************************************************</span></div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span> <span class="comment">// * Find geoid height via 2D spline interpolation *</span></div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="comment">// *************************************************</span></div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> </div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="keywordtype">int</span> </div>
<div class="line"><a name="l00365"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a343acc8ffd21103303afec33da0c7bd6"> 365</a></span> <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a343acc8ffd21103303afec33da0c7bd6">Egm2008AoiGrid::geoidHeight</a>(</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keywordtype">int</span> wSize, <span class="comment">// input</span></div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="keywordtype">double</span> latitude, <span class="comment">// input</span></div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keywordtype">double</span> longitude, <span class="comment">// input</span></div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordtype">double</span>& gHeight ) <span class="comment">// output</span></div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span> {</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="comment">// November 19, 2010: Version 1.00</span></div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="comment">// February 11, 2011: Version 1.01</span></div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> </div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="comment">// This function interpolates </span></div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="comment">// geoid heights from an AOI grid,</span></div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="comment">// which, in turn, was extracted from a</span></div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="comment">// reformatted version of NGA's worldwide grid.</span></div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="comment">// It primarily uses BICUBIC-SPLINE INTERPOLATION, </span></div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="comment">// but it uses bilinear interpolation for small windows.</span></div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  </div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="comment">// Definitions:</span></div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span> </div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="comment">// gHeight: Interpolated geoid height (meters).</span></div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="comment">// latitude: Geodetic latitude (radians) at </span></div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="comment">// which geoid height is to be interpolated. </span></div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="comment">// longitude: Geodetic longitude (radians) at</span></div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="comment">// which geoid height is to be interpolated.</span></div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="comment">// wSize: The number of grid points </span></div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="comment">// along each edge of the interpolation</span></div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="comment">// window that surrounds the point of interest;</span></div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="comment">// the interpolation window has wSize**2 grid points;</span></div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="comment">// if wSize < 3, then the geoid height </span></div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="comment">// is computed using bilinear interpolation; the</span></div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="comment">// maximum allowable wSize is twenty grid points;</span></div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="comment">// typical window sizes are 4x4, 6x6, 8,8 etc.</span></div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> </div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="comment">// i: Worldwide grid's latitude index. </span></div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="comment">// j: Worldwide grid's longitude index.</span></div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="comment">// oddSize: A flag indicating whether the </span></div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <span class="comment">// local interpolation grid's number</span></div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="comment">// of (rows = column) is even or odd;</span></div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="comment">// oddSize = true ..... </span></div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <span class="comment">// the number of rows = columns is odd,</span></div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="comment">// where 3x3, 5x5, 7x7, 9x9, etc are</span></div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <span class="comment">// examples of grids with oddSize = true,</span></div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="comment">// oddSize = false ..... </span></div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="comment">// the number of rows = columns is even,</span></div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="comment">// where 4x4, 6x6, 8x8, 10x10, etc are</span></div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="comment">// examples of grids with oddSize = false.</span></div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="comment">// The associated indexing logic has two goals:</span></div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="comment">// 2) if oddSize = true, select the </span></div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="comment">// the local grid so that the point of</span></div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="comment">// interest lies near the grid's center,</span></div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="comment">// 2) if oddSize = false, select the </span></div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="comment">// the local grid so that the point of</span></div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="comment">// interest lies in the grid's central cell.</span></div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="comment">// When oddSize = false, the interpolator will</span></div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="comment">// obtain a numerically-most-trustworthy solution.</span></div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span> </div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="keywordflow">try</span> {</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span> </div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <a class="code" href="class_m_s_p_1_1_c_c_s_thread_lock.html">MSP::CCSThreadLock</a> aLock( &<a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a536750d04da7d4d06398ec6725bc1c1d">_mutex</a> ); <span class="comment">// copy constructor locks thread</span></div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span> </div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> TWENTY = 20;</div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span> </div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="keywordtype">bool</span> oddSize;</div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span> </div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keywordtype">int</span> i0;</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="keywordtype">int</span> iIndex;</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keywordtype">int</span> iMax;</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="keywordtype">int</span> iMin;</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keywordtype">int</span> j;</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="keywordtype">int</span> j0;</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keywordtype">int</span> jIndex;</div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="keywordtype">int</span> jMax;</div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keywordtype">int</span> jMin;</div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="keywordtype">int</span> kIndex;</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordtype">int</span> offset;</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="keywordtype">int</span> status;</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span> </div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="keywordtype">double</span> latIndex;</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordtype">double</span> lonIndex;</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="keywordtype">double</span> temp;</div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span> </div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordtype">double</span> latSupport[ TWENTY ];</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="keywordtype">double</span> lonSupport[ TWENTY ];</div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="keywordtype">double</span> moments [ TWENTY ];</div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span> </div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="comment">// EDIT THE INPUT AND INITIALIZE .....</span></div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span> </div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  gHeight = 0.0;</div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span> </div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="keywordflow">if</span> ( wSize > <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a41455eb2451be53f9e96976b01a93d31">MAX_WSIZE</a> ) wSize = <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a41455eb2451be53f9e96976b01a93d31">MAX_WSIZE</a>;</div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> </div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="keywordflow">if</span> (( latitude < -PIDIV2 ) || ( latitude > PIDIV2 )) <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span> </div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="keywordflow">while</span> ( longitude < 0.0 ) longitude += TWOPI;</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="keywordflow">while</span> ( longitude > TWOPI ) longitude -= TWOPI;</div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span> </div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="keywordflow">if</span> ( TWENTY != <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a41455eb2451be53f9e96976b01a93d31">MAX_WSIZE</a> ) <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span> </div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keywordflow">for</span> (i = 0; i < TWENTY; i++)</div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  {</div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  latSupport[ i ] = lonSupport[ i ] = moments[ i ] = 0.0;</div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  }</div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span> </div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="comment">// Determine point indices</span></div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <span class="comment">// (relative to worldwide grid) .....</span></div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span> </div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  latIndex = </div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  double( <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a819a4f7158e690c7b9bd1d954f31bb41">_nGridPad</a> ) + </div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  ( latitude + PIDIV2 ) / <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ae4610b8cb5c6943b093d6d8c869d74b0">_dLat</a>;</div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  lonIndex = </div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  double( <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a819a4f7158e690c7b9bd1d954f31bb41">_nGridPad</a> ) + </div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  ( longitude - 0.0 ) / <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ac9316fa466f6a953115c4bbb839f7718">_dLon</a>;</div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span> </div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="comment">// Determine interpolation window </span></div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  <span class="comment">// indices (relative to worldwide grid) .....</span></div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span> </div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  oddSize = ( wSize != (( wSize / 2 ) * 2 ));</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span> </div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="keywordflow">if</span> ( oddSize ) {</div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  i0 = int( latIndex + 0.5 );</div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  j0 = int( lonIndex + 0.5 );</div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span> </div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  iMin = i0 - ( wSize / 2 );</div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  jMin = j0 - ( wSize / 2 );</div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  }</div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="keywordflow">else</span> { </div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  i0 = int( latIndex );</div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  j0 = int( lonIndex );</div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span> </div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  iMin = i0 - ( wSize / 2 ) + 1;</div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  jMin = j0 - ( wSize / 2 ) + 1;</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  }</div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span> </div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  iMax = iMin + wSize - 1;</div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  jMax = jMin + wSize - 1;</div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span> </div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="comment">// Compare interpolation </span></div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <span class="comment">// window's limits to AOI grid's </span></div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  <span class="comment">// limits, and reload AOI grid if required .....</span></div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span> </div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <span class="keywordflow">if</span> (( iMin < <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a> ) ||</div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  ( iMax > <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ad5b89027dcb469390cab78a8d887061f">_maxAoiRowIndex</a> ) ||</div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  ( jMin < <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a> ) ||</div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  ( jMax > <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a21c128d8e3715ecab0ea438ba08d866b">_maxAoiColIndex</a> ))</div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  {</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  status = this-><a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8efef4dab59b4f1b9d03f50bc99502f4">loadAoiParms</a>( i0, j0 );</div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span> </div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <span class="keywordflow">if</span> ( status != 0 ) <span class="keywordflow">return</span>( 1 ); </div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span> </div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  status = this-><a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ade3b449d3e7ff04a80af8d7978b0c246">loadGrid</a>();</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span> </div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  <span class="keywordflow">if</span> ( status != 0 ) <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  }</div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span> </div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <span class="comment">// COMPUTE BILINEAR INTERPOLATION .....</span></div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span> </div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <span class="comment">// (executes only when the interpolation window</span></div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  <span class="comment">// is too small for bicubic spline interpolation)</span></div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span> </div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <span class="keywordflow">if</span> ( wSize < 3 ) </div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  {</div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  status = </div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  this-><a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a343acc8ffd21103303afec33da0c7bd6">geoidHeight</a>( latitude, longitude, gHeight );</div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span> </div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <span class="keywordflow">if</span> ( status != 0 ) <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span> </div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  ; <span class="comment">/* Normal bilinear interpolation return */</span> <span class="keywordflow">return</span>( 0 );</div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  }</div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span> </div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <span class="comment">// COMPUTE BI-CUBIC SPLINE INTERPOLATION .....</span></div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span> </div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <span class="comment">// Compute interpolation window's </span></div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="comment">// relative column coordinate at which the</span></div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <span class="comment">// first set of geoid heights will be interpolated ....</span></div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span> </div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  temp = </div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  lonIndex - double( jMin ); <span class="comment">// 0 <= temp <= (wSize - 1)</span></div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span> </div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <span class="comment">// Interpolate a synthetic geoid height </span></div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <span class="comment">// for each row within the interpolation window .....</span></div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span> </div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="keywordflow">for</span> ( i = 0; i < wSize; i++ ) </div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  {</div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  iIndex = iMin + i - <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a>; <span class="comment">// AOI referenced</span></div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span> </div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  offset = ( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a3558b30ea151fa1ba2dc596ed25c04e6">_nAoiRows</a> - iIndex - 1 ) * <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a>;</div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span> </div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <span class="comment">// Load interpolation window's </span></div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <span class="comment">// i-th row of tabulated geoid heights ..... </span></div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span> </div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <span class="keywordflow">for</span> ( j = 0; j < wSize; j++ ) </div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  {</div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  jIndex = jMin + j - <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a>; <span class="comment">// AOI referenced</span></div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span> </div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  kIndex = jIndex + offset; </div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span> </div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  lonSupport[ j ] = <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a>[ kIndex ];</div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  }</div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span> </div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="comment">// Compute moments, </span></div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  <span class="comment">// interpolate the i-th row's geoid </span></div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  <span class="comment">// height at the longitude of interest, </span></div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  <span class="comment">// then load the i-th latitude support point .....</span></div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span> </div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  status = </div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  this-><a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ab53263887ad075a952f68dda1416cdc5">initSpline</a>( wSize, lonSupport, moments );</div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span> </div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  <span class="keywordflow">if</span> ( status != 0 ) <span class="keywordflow">return</span>( 1 ); </div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span> </div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  latSupport[ i ] = </div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  this-><a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ad81b4e894ccf08ceddb246abe9635cd9">spline</a>( wSize, temp, lonSupport, moments ); </div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  }</div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span> </div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="comment">// Compute interpolation window's </span></div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="comment">// relative row coordinate at which the</span></div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  <span class="comment">// final geoid height will be interpolated .....</span></div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span> </div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  temp = </div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  latIndex - double( iMin ); <span class="comment">// 0 <= temp <= (wSize - 1)</span></div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span> </div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  <span class="comment">// Compute moments, and interpolate final </span></div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  <span class="comment">// geoid height at the latitude of interest .....</span></div>
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span> </div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  status = </div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  this-><a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ab53263887ad075a952f68dda1416cdc5">initSpline</a>( wSize, latSupport, moments ); </div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span> </div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <span class="keywordflow">if</span> ( status != 0 ) <span class="keywordflow">return</span>( 1 ); </div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span> </div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  gHeight = </div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  this-><a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ad81b4e894ccf08ceddb246abe9635cd9">spline</a>( wSize, temp, latSupport, moments );</div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span> </div>
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <span class="comment">// Thread is unlocked by aLock's destructor;</span></div>
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <span class="comment">// this occurs even when exceptions are thrown.</span></div>
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span> </div>
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  } <span class="comment">// End of exceptions' try block</span></div>
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span> </div>
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  <span class="keywordflow">catch</span> ( ... ) { <span class="keywordflow">return</span>( 1 ); }</div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span> </div>
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  <span class="keywordflow">return</span> ( 0 ); <span class="comment">// Normal-return flag</span></div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span> </div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span> } <span class="comment">// End of function Egm2008AoiGrid::geoidHeight</span></div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span> </div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span> </div>
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span> <span class="comment">// **********************</span></div>
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span> <span class="comment">// ** Hidden functions **</span></div>
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span> <span class="comment">// **********************</span></div>
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span> </div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span> <span class="comment">// ************************************** </span></div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span> <span class="comment">// * Interpolate EGM 2008 geoid heights * </span></div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="comment">// ************************************** </span></div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  </div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00617"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a26612e4c9e408ea4ab3117054f62b4cf"> 617</a></span> <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a343acc8ffd21103303afec33da0c7bd6">Egm2008AoiGrid::geoidHeight</a>(</div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  <span class="keywordtype">double</span> latitude, <span class="comment">// input</span></div>
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  <span class="keywordtype">double</span> longitude, <span class="comment">// input</span></div>
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  <span class="keywordtype">double</span>& gHeight ) <span class="comment">// output</span></div>
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span> { </div>
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  <span class="comment">// November 19, 2010: Version 1.00</span></div>
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  </div>
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  <span class="comment">// This function, which is</span></div>
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  <span class="comment">// exercised only when wSize < 3, uses</span></div>
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="comment">// bilinear interpolation to find geoid heights.</span></div>
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span> </div>
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  <span class="comment">// Definitions: </span></div>
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span> </div>
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  <span class="comment">// gHeight: Interpolated geoid height (meters).</span></div>
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  <span class="comment">// latitude: GEODETIC latitude at which </span></div>
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  <span class="comment">// nominal geoid height is to be computed. </span></div>
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  <span class="comment">// longitude: GEODETIC longitude at which </span></div>
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  <span class="comment">// nominal geoid height is to be computed. </span></div>
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span> </div>
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  <span class="comment">// wSize: The local interpolation window's size:</span></div>
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <span class="comment">// normally wSize = 6 for EGM 2008 interpolations.</span></div>
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span> </div>
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  <span class="comment">// Thread locks are not needed here, because this function</span></div>
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  <span class="comment">// can only be invoked by the bicubic spline's geoidHeight function; </span></div>
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  <span class="comment">// the thread locks reside in the bicubic spline's geoidHeight function.</span></div>
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span> </div>
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  <span class="keywordflow">try</span> {</div>
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span> </div>
<div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  <span class="keywordtype">int</span> i1;</div>
<div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <span class="keywordtype">int</span> i1ww;</div>
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  <span class="keywordtype">int</span> i2;</div>
<div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  <span class="keywordtype">int</span> i3;</div>
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  <span class="keywordtype">int</span> i4;</div>
<div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <span class="keywordtype">int</span> index;</div>
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  <span class="keywordtype">int</span> j1;</div>
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  <span class="keywordtype">int</span> j1ww;</div>
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  <span class="keywordtype">int</span> j2;</div>
<div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  <span class="keywordtype">int</span> j3;</div>
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  <span class="keywordtype">int</span> j4;</div>
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  <span class="keywordtype">int</span> status;</div>
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span> </div>
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  <span class="keywordtype">double</span> a0;</div>
<div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  <span class="keywordtype">double</span> a1;</div>
<div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  <span class="keywordtype">double</span> a2;</div>
<div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  <span class="keywordtype">double</span> a3;</div>
<div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  <span class="keywordtype">double</span> lat1;</div>
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <span class="keywordtype">double</span> lon1;</div>
<div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  <span class="keywordtype">double</span> n1;</div>
<div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  <span class="keywordtype">double</span> n2;</div>
<div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  <span class="keywordtype">double</span> n3;</div>
<div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  <span class="keywordtype">double</span> n4;</div>
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  <span class="keywordtype">double</span> x;</div>
<div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  <span class="keywordtype">double</span> y;</div>
<div class="line"><a name="l00670"></a><span class="lineno"> 670</span> </div>
<div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  <span class="comment">// EDIT THE INPUT AND INITIALIZE .....</span></div>
<div class="line"><a name="l00672"></a><span class="lineno"> 672</span> </div>
<div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  gHeight = 0.0;</div>
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span> </div>
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  <span class="keywordflow">if</span> (( latitude < -PIDIV2 ) || ( latitude > PIDIV2 )) <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span> </div>
<div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  <span class="keywordflow">while</span> ( longitude < 0.0 ) longitude += TWOPI;</div>
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  <span class="keywordflow">while</span> ( longitude > TWOPI ) longitude -= TWOPI;</div>
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span> </div>
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  <span class="comment">// Compute the surrounding </span></div>
<div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  <span class="comment">// points' worldwide grid indices .....</span></div>
<div class="line"><a name="l00682"></a><span class="lineno"> 682</span> </div>
<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  status = </div>
<div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  this-><a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ad4fdc86705a179966de58b823da84126">swGridIndices</a></div>
<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  ( latitude, longitude, i1, j1 );</div>
<div class="line"><a name="l00686"></a><span class="lineno"> 686</span> </div>
<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  <span class="keywordflow">if</span> ( status != 0 ) <span class="keywordflow">return</span>( 1 ); </div>
<div class="line"><a name="l00688"></a><span class="lineno"> 688</span> </div>
<div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  i1ww = i1; <span class="comment">// save worldwide index</span></div>
<div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  j1ww = j1; <span class="comment">// save worldwide index</span></div>
<div class="line"><a name="l00691"></a><span class="lineno"> 691</span> </div>
<div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  i2 = i1;</div>
<div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  j2 = j1 + 1;</div>
<div class="line"><a name="l00694"></a><span class="lineno"> 694</span> </div>
<div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  i3 = i1 + 1;</div>
<div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  j3 = j2;</div>
<div class="line"><a name="l00697"></a><span class="lineno"> 697</span> </div>
<div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  i4 = i3;</div>
<div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  j4 = j1;</div>
<div class="line"><a name="l00700"></a><span class="lineno"> 700</span> </div>
<div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  <span class="comment">// Compute the </span></div>
<div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  <span class="comment">// corresponding AOI grid indices .....</span></div>
<div class="line"><a name="l00703"></a><span class="lineno"> 703</span> </div>
<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  i1 -= <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a>;</div>
<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  j1 -= <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a>;</div>
<div class="line"><a name="l00706"></a><span class="lineno"> 706</span> </div>
<div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  i2 -= <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a>;</div>
<div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  j2 -= <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a>;</div>
<div class="line"><a name="l00709"></a><span class="lineno"> 709</span> </div>
<div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  i3 -= <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a>;</div>
<div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  j3 -= <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a>;</div>
<div class="line"><a name="l00712"></a><span class="lineno"> 712</span> </div>
<div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  i4 -= <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a>;</div>
<div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  j4 -= <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a>;</div>
<div class="line"><a name="l00715"></a><span class="lineno"> 715</span> </div>
<div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  <span class="comment">// GET THE SURROUNDING GRID POINTS' GEOID HEIGHTS .....</span></div>
<div class="line"><a name="l00717"></a><span class="lineno"> 717</span> </div>
<div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  index = </div>
<div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  j1 + ( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a3558b30ea151fa1ba2dc596ed25c04e6">_nAoiRows</a> - i1 - 1 ) * <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a>;</div>
<div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  n1 = <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a>[ index ];</div>
<div class="line"><a name="l00721"></a><span class="lineno"> 721</span> </div>
<div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  index = </div>
<div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  j2 + ( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a3558b30ea151fa1ba2dc596ed25c04e6">_nAoiRows</a> - i2 - 1 ) * <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a>;</div>
<div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  n2 = <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a>[ index ];</div>
<div class="line"><a name="l00725"></a><span class="lineno"> 725</span> </div>
<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  index = </div>
<div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  j3 + ( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a3558b30ea151fa1ba2dc596ed25c04e6">_nAoiRows</a> - i3 - 1 ) * <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a>;</div>
<div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  n3 = <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a>[ index ];</div>
<div class="line"><a name="l00729"></a><span class="lineno"> 729</span> </div>
<div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  index = </div>
<div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  j4 + ( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a3558b30ea151fa1ba2dc596ed25c04e6">_nAoiRows</a> - i4 - 1 ) * <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a>;</div>
<div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  n4 = <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a>[ index ];</div>
<div class="line"><a name="l00733"></a><span class="lineno"> 733</span> </div>
<div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  <span class="comment">// INTERPOLATE GEOID HEIGHT AT THE POINT OF INTEREST .....</span></div>
<div class="line"><a name="l00735"></a><span class="lineno"> 735</span> </div>
<div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  <span class="comment">// Set bilinear coefficients .....</span></div>
<div class="line"><a name="l00737"></a><span class="lineno"> 737</span> </div>
<div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  a0 = n1;</div>
<div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  a1 = n2 - n1;</div>
<div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  a2 = n4 - n1;</div>
<div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  a3 = n1 + n3 - n2 - n4;</div>
<div class="line"><a name="l00742"></a><span class="lineno"> 742</span> </div>
<div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  <span class="comment">// Set first ( S/W ) corner's geodetic coordinates .....</span></div>
<div class="line"><a name="l00744"></a><span class="lineno"> 744</span> </div>
<div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  lat1 = </div>
<div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a7ac9a8fbfd6905df0c8bf03ed8f769ff">_baseLatitude</a> + <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ae4610b8cb5c6943b093d6d8c869d74b0">_dLat</a> * double( i1ww ); <span class="comment">// radians</span></div>
<div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  lon1 = </div>
<div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#aee81cc3285e187585460b4184474b934">_baseLongitude</a> + <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ac9316fa466f6a953115c4bbb839f7718">_dLon</a> * double( j1ww ); <span class="comment">// radians</span></div>
<div class="line"><a name="l00749"></a><span class="lineno"> 749</span> </div>
<div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  <span class="comment">// Set point coordinates relative</span></div>
<div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  <span class="comment">// to the grid square's S/W corner .....</span></div>
<div class="line"><a name="l00752"></a><span class="lineno"> 752</span> </div>
<div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  <span class="comment">// 0 <= x <= 1; 0 <= y <= 1.</span></div>
<div class="line"><a name="l00754"></a><span class="lineno"> 754</span> </div>
<div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  x = ( longitude - lon1 ) / <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ac9316fa466f6a953115c4bbb839f7718">_dLon</a>;</div>
<div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  y = ( latitude - lat1 ) / <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ae4610b8cb5c6943b093d6d8c869d74b0">_dLat</a>;</div>
<div class="line"><a name="l00757"></a><span class="lineno"> 757</span> </div>
<div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  <span class="comment">// Perform the interpolation .....</span></div>
<div class="line"><a name="l00759"></a><span class="lineno"> 759</span> </div>
<div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  gHeight = a0 + a1 * x + a2 * y + a3 * x * y; <span class="comment">// meters</span></div>
<div class="line"><a name="l00761"></a><span class="lineno"> 761</span> </div>
<div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  } <span class="comment">// End of exceptions' try block</span></div>
<div class="line"><a name="l00763"></a><span class="lineno"> 763</span> </div>
<div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  <span class="keywordflow">catch</span> ( ... ) { <span class="keywordflow">return</span>( 1 ); }</div>
<div class="line"><a name="l00765"></a><span class="lineno"> 765</span> </div>
<div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  <span class="keywordflow">return</span>( 0 ); <span class="comment">// Normal-return flag</span></div>
<div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  </div>
<div class="line"><a name="l00768"></a><span class="lineno"> 768</span> } <span class="comment">// End of function Egm2008AoiGrid::geoidHeight </span></div>
<div class="line"><a name="l00769"></a><span class="lineno"> 769</span> </div>
<div class="line"><a name="l00770"></a><span class="lineno"> 770</span> </div>
<div class="line"><a name="l00771"></a><span class="lineno"> 771</span> <span class="comment">// ************************************</span></div>
<div class="line"><a name="l00772"></a><span class="lineno"> 772</span> <span class="comment">// * Compute new AOI's new parameters *</span></div>
<div class="line"><a name="l00773"></a><span class="lineno"> 773</span> <span class="comment">// ************************************</span></div>
<div class="line"><a name="l00774"></a><span class="lineno"> 774</span> </div>
<div class="line"><a name="l00775"></a><span class="lineno"> 775</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00776"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8efef4dab59b4f1b9d03f50bc99502f4"> 776</a></span> <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8efef4dab59b4f1b9d03f50bc99502f4">Egm2008AoiGrid::loadAoiParms</a>(</div>
<div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  <span class="keywordtype">int</span> i0, <span class="comment">// input</span></div>
<div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  <span class="keywordtype">int</span> j0 ) <span class="comment">// input</span></div>
<div class="line"><a name="l00779"></a><span class="lineno"> 779</span> {</div>
<div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  <span class="comment">// November 19, 2010: Version 1.00</span></div>
<div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  <span class="comment">// February 11, 2011: Version 2.00:</span></div>
<div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  <span class="comment">// the function's name was changed following code review</span></div>
<div class="line"><a name="l00783"></a><span class="lineno"> 783</span> </div>
<div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  <span class="comment">// This function determines </span></div>
<div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  <span class="comment">// current AOI grid parameters.</span></div>
<div class="line"><a name="l00786"></a><span class="lineno"> 786</span> </div>
<div class="line"><a name="l00787"></a><span class="lineno"> 787</span>  <span class="comment">// Definitions;</span></div>
<div class="line"><a name="l00788"></a><span class="lineno"> 788</span> </div>
<div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  <span class="comment">// i0: Worldwide row index</span></div>
<div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  <span class="comment">// for geoid height post that's</span></div>
<div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  <span class="comment">// near the ground point of interest.</span></div>
<div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  <span class="comment">// j0: Worldwide column index</span></div>
<div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  <span class="comment">// for geoid height post that's</span></div>
<div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  <span class="comment">// near the ground point of interest.</span></div>
<div class="line"><a name="l00795"></a><span class="lineno"> 795</span> </div>
<div class="line"><a name="l00796"></a><span class="lineno"> 796</span>  <span class="comment">// THRESHOLD: Compute the E/W horizontal </span></div>
<div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  <span class="comment">// distance between grid columns</span></div>
<div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  <span class="comment">// a) at the equator (ewDelta0) and</span></div>
<div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  <span class="comment">// b) at the latitude of interest (ewDelta);</span></div>
<div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  <span class="comment">// then form the ratio ( ewDelta / ewDelta0 );</span></div>
<div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  <span class="comment">// THRESHOLD is the minimum allowable E/W ratio,</span></div>
<div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  <span class="comment">// where ratio controls the # of AOI grid columns.</span></div>
<div class="line"><a name="l00803"></a><span class="lineno"> 803</span> </div>
<div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  <span class="comment">// Thread locks are not needed here, because this function</span></div>
<div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  <span class="comment">// can only be invoked by the bicubic spline geoidHeight function;</span></div>
<div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  <span class="comment">// the thread locks reside in the bicubic spline's geoidHeight function.</span></div>
<div class="line"><a name="l00807"></a><span class="lineno"> 807</span> </div>
<div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  <span class="keywordflow">try</span> {</div>
<div class="line"><a name="l00809"></a><span class="lineno"> 809</span> </div>
<div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> THRESHOLD = 0.05; <span class="comment">// unitless</span></div>
<div class="line"><a name="l00811"></a><span class="lineno"> 811</span> </div>
<div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  <span class="keywordtype">int</span> status;</div>
<div class="line"><a name="l00813"></a><span class="lineno"> 813</span> </div>
<div class="line"><a name="l00814"></a><span class="lineno"> 814</span>  <span class="keywordtype">double</span> cLat;</div>
<div class="line"><a name="l00815"></a><span class="lineno"> 815</span>  <span class="keywordtype">double</span> eSquared; </div>
<div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  <span class="keywordtype">double</span> ewDelta;</div>
<div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  <span class="keywordtype">double</span> ewDelta0;</div>
<div class="line"><a name="l00818"></a><span class="lineno"> 818</span>  <span class="keywordtype">double</span> latitude;</div>
<div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  <span class="keywordtype">double</span> longitude;</div>
<div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  <span class="keywordtype">double</span> nRadius;</div>
<div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  <span class="keywordtype">double</span> ratio;</div>
<div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  <span class="keywordtype">double</span> sLat;</div>
<div class="line"><a name="l00823"></a><span class="lineno"> 823</span>  <span class="keywordtype">double</span> temp;</div>
<div class="line"><a name="l00824"></a><span class="lineno"> 824</span> </div>
<div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  <span class="comment">// INITIALIZE .....</span></div>
<div class="line"><a name="l00826"></a><span class="lineno"> 826</span> </div>
<div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  <span class="comment">// Compute latitude & longitude</span></div>
<div class="line"><a name="l00828"></a><span class="lineno"> 828</span>  <span class="comment">// corresponding to indices i0 & j0 .....</span></div>
<div class="line"><a name="l00829"></a><span class="lineno"> 829</span> </div>
<div class="line"><a name="l00830"></a><span class="lineno"> 830</span>  status = </div>
<div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  this-><a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ac1995352678dc366e056f8b346f76475">loadGridCoords</a>(</div>
<div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  i0, j0, latitude, longitude );</div>
<div class="line"><a name="l00833"></a><span class="lineno"> 833</span> </div>
<div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  <span class="keywordflow">if</span> ( status != 0 ) <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00835"></a><span class="lineno"> 835</span> </div>
<div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  cLat = cos( latitude );</div>
<div class="line"><a name="l00837"></a><span class="lineno"> 837</span>  sLat = sin( latitude );</div>
<div class="line"><a name="l00838"></a><span class="lineno"> 838</span> </div>
<div class="line"><a name="l00839"></a><span class="lineno"> 839</span>  <span class="comment">// Compute earth ellipsoid's</span></div>
<div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  <span class="comment">// radius of curvature in the prime vertical .....</span></div>
<div class="line"><a name="l00841"></a><span class="lineno"> 841</span> </div>
<div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  eSquared = FLATTENING * ( 2.0 - FLATTENING );</div>
<div class="line"><a name="l00843"></a><span class="lineno"> 843</span> </div>
<div class="line"><a name="l00844"></a><span class="lineno"> 844</span>  temp = 1.0 - eSquared * sLat * sLat;</div>
<div class="line"><a name="l00845"></a><span class="lineno"> 845</span> </div>
<div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  nRadius = SEMI_MAJOR_AXIS / sqrt( temp );</div>
<div class="line"><a name="l00847"></a><span class="lineno"> 847</span> </div>
<div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  <span class="comment">// Set AOI grid's number of rows and columns .....</span></div>
<div class="line"><a name="l00849"></a><span class="lineno"> 849</span> </div>
<div class="line"><a name="l00850"></a><span class="lineno"> 850</span>  ewDelta0 = SEMI_MAJOR_AXIS * <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ac9316fa466f6a953115c4bbb839f7718">_dLon</a>;</div>
<div class="line"><a name="l00851"></a><span class="lineno"> 851</span> </div>
<div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  ewDelta = nRadius * _dLon * cLat;</div>
<div class="line"><a name="l00853"></a><span class="lineno"> 853</span> </div>
<div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  ratio = ewDelta / ewDelta0;</div>
<div class="line"><a name="l00855"></a><span class="lineno"> 855</span> </div>
<div class="line"><a name="l00856"></a><span class="lineno"> 856</span>  <span class="keywordflow">if</span> ( ratio < THRESHOLD ) ratio = THRESHOLD;</div>
<div class="line"><a name="l00857"></a><span class="lineno"> 857</span> </div>
<div class="line"><a name="l00858"></a><span class="lineno"> 858</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a> = int( <span class="keywordtype">double</span>( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a5fb7870a9e94a08e3e606a1ad715864a">_nomAoiCols</a> ) / ratio ); </div>
<div class="line"><a name="l00859"></a><span class="lineno"> 859</span> </div>
<div class="line"><a name="l00860"></a><span class="lineno"> 860</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a> = 2 * ( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a> / 2 ); <span class="comment">// These both</span></div>
<div class="line"><a name="l00861"></a><span class="lineno"> 861</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a3558b30ea151fa1ba2dc596ed25c04e6">_nAoiRows</a> = 2 * ( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a97e78615987edf1321fc4075f7800219">_nomAoiRows</a> / 2 ); <span class="comment">// become even numbers</span></div>
<div class="line"><a name="l00862"></a><span class="lineno"> 862</span> </div>
<div class="line"><a name="l00863"></a><span class="lineno"> 863</span>  <span class="comment">// SET AOI GRID'S ABSOLUTE LOCATION .....</span></div>
<div class="line"><a name="l00864"></a><span class="lineno"> 864</span> </div>
<div class="line"><a name="l00865"></a><span class="lineno"> 865</span>  <span class="comment">// (indices are referenced to the worldwide grid)</span></div>
<div class="line"><a name="l00866"></a><span class="lineno"> 866</span> </div>
<div class="line"><a name="l00867"></a><span class="lineno"> 867</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a> = i0 - (( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a3558b30ea151fa1ba2dc596ed25c04e6">_nAoiRows</a> - 2 ) / 2 ) + 1;</div>
<div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ad5b89027dcb469390cab78a8d887061f">_maxAoiRowIndex</a> = <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a> + <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a3558b30ea151fa1ba2dc596ed25c04e6">_nAoiRows</a> - 1;</div>
<div class="line"><a name="l00869"></a><span class="lineno"> 869</span> </div>
<div class="line"><a name="l00870"></a><span class="lineno"> 870</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a> = j0 - (( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a> - 2 ) / 2 ) + 1;</div>
<div class="line"><a name="l00871"></a><span class="lineno"> 871</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a21c128d8e3715ecab0ea438ba08d866b">_maxAoiColIndex</a> = <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a> + <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a> - 1;</div>
<div class="line"><a name="l00872"></a><span class="lineno"> 872</span> </div>
<div class="line"><a name="l00873"></a><span class="lineno"> 873</span>  <span class="comment">// MOVE AOI GRID IF IT EXTENDS</span></div>
<div class="line"><a name="l00874"></a><span class="lineno"> 874</span>  <span class="comment">// BEYOND A WORLDWIDE GRID BOUNDARY .....</span></div>
<div class="line"><a name="l00875"></a><span class="lineno"> 875</span> </div>
<div class="line"><a name="l00876"></a><span class="lineno"> 876</span>  <span class="keywordflow">if</span> ( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a> < 0 ) </div>
<div class="line"><a name="l00877"></a><span class="lineno"> 877</span>  {</div>
<div class="line"><a name="l00878"></a><span class="lineno"> 878</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a> = 0;</div>
<div class="line"><a name="l00879"></a><span class="lineno"> 879</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ad5b89027dcb469390cab78a8d887061f">_maxAoiRowIndex</a> = <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a> + _nAoiRows - 1;</div>
<div class="line"><a name="l00880"></a><span class="lineno"> 880</span>  }</div>
<div class="line"><a name="l00881"></a><span class="lineno"> 881</span> </div>
<div class="line"><a name="l00882"></a><span class="lineno"> 882</span>  <span class="keywordflow">if</span> ( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ad5b89027dcb469390cab78a8d887061f">_maxAoiRowIndex</a> >= <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a2286085cfe409a3d1d0124b32aea5ad0">_nGridRows</a> ) </div>
<div class="line"><a name="l00883"></a><span class="lineno"> 883</span>  {</div>
<div class="line"><a name="l00884"></a><span class="lineno"> 884</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ad5b89027dcb469390cab78a8d887061f">_maxAoiRowIndex</a> = <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a2286085cfe409a3d1d0124b32aea5ad0">_nGridRows</a> - 1;</div>
<div class="line"><a name="l00885"></a><span class="lineno"> 885</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a> = <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ad5b89027dcb469390cab78a8d887061f">_maxAoiRowIndex</a> - _nAoiRows + 1;</div>
<div class="line"><a name="l00886"></a><span class="lineno"> 886</span>  }</div>
<div class="line"><a name="l00887"></a><span class="lineno"> 887</span> </div>
<div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  <span class="keywordflow">if</span> ( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a> < 0 )</div>
<div class="line"><a name="l00889"></a><span class="lineno"> 889</span>  {</div>
<div class="line"><a name="l00890"></a><span class="lineno"> 890</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a> = 0;</div>
<div class="line"><a name="l00891"></a><span class="lineno"> 891</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a21c128d8e3715ecab0ea438ba08d866b">_maxAoiColIndex</a> = <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a> + _nAoiCols - 1;</div>
<div class="line"><a name="l00892"></a><span class="lineno"> 892</span>  }</div>
<div class="line"><a name="l00893"></a><span class="lineno"> 893</span> </div>
<div class="line"><a name="l00894"></a><span class="lineno"> 894</span>  <span class="keywordflow">if</span> ( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a21c128d8e3715ecab0ea438ba08d866b">_maxAoiColIndex</a> >= <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ab922a0a4cd247d0eb260d73e566152b4">_nGridCols</a> ) </div>
<div class="line"><a name="l00895"></a><span class="lineno"> 895</span>  {</div>
<div class="line"><a name="l00896"></a><span class="lineno"> 896</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a21c128d8e3715ecab0ea438ba08d866b">_maxAoiColIndex</a> = <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ab922a0a4cd247d0eb260d73e566152b4">_nGridCols</a> - 1;</div>
<div class="line"><a name="l00897"></a><span class="lineno"> 897</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a> = <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a21c128d8e3715ecab0ea438ba08d866b">_maxAoiColIndex</a> - _nAoiCols + 1;</div>
<div class="line"><a name="l00898"></a><span class="lineno"> 898</span>  }</div>
<div class="line"><a name="l00899"></a><span class="lineno"> 899</span> </div>
<div class="line"><a name="l00900"></a><span class="lineno"> 900</span>  } <span class="comment">// End of exception's try block</span></div>
<div class="line"><a name="l00901"></a><span class="lineno"> 901</span> </div>
<div class="line"><a name="l00902"></a><span class="lineno"> 902</span>  <span class="keywordflow">catch</span> ( ... ) { <span class="keywordflow">return</span>( 1 ); }</div>
<div class="line"><a name="l00903"></a><span class="lineno"> 903</span> </div>
<div class="line"><a name="l00904"></a><span class="lineno"> 904</span>  <span class="keywordflow">return</span>( 0 ); <span class="comment">// Normal return flag</span></div>
<div class="line"><a name="l00905"></a><span class="lineno"> 905</span> </div>
<div class="line"><a name="l00906"></a><span class="lineno"> 906</span> } <span class="comment">// End of function Egm2008AoiGrid::loadAoiParms</span></div>
<div class="line"><a name="l00907"></a><span class="lineno"> 907</span> </div>
<div class="line"><a name="l00908"></a><span class="lineno"> 908</span> </div>
<div class="line"><a name="l00909"></a><span class="lineno"> 909</span> <span class="comment">// ******************************</span></div>
<div class="line"><a name="l00910"></a><span class="lineno"> 910</span> <span class="comment">// * Read reformatted version * </span></div>
<div class="line"><a name="l00911"></a><span class="lineno"> 911</span> <span class="comment">// * of NGA's geoid-height grid *</span></div>
<div class="line"><a name="l00912"></a><span class="lineno"> 912</span> <span class="comment">// ******************************</span></div>
<div class="line"><a name="l00913"></a><span class="lineno"> 913</span> </div>
<div class="line"><a name="l00914"></a><span class="lineno"> 914</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00915"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ade3b449d3e7ff04a80af8d7978b0c246"> 915</a></span> <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ade3b449d3e7ff04a80af8d7978b0c246">Egm2008AoiGrid::loadGrid</a>( <span class="keywordtype">void</span> )</div>
<div class="line"><a name="l00916"></a><span class="lineno"> 916</span> {</div>
<div class="line"><a name="l00917"></a><span class="lineno"> 917</span>  <span class="comment">// November 19, 2010: Version 1.00</span></div>
<div class="line"><a name="l00918"></a><span class="lineno"> 918</span>  <span class="comment">// February 11, 2011: Version 2.00:</span></div>
<div class="line"><a name="l00919"></a><span class="lineno"> 919</span>  <span class="comment">// the function's name was changed following code review</span></div>
<div class="line"><a name="l00920"></a><span class="lineno"> 920</span> </div>
<div class="line"><a name="l00921"></a><span class="lineno"> 921</span>  <span class="comment">// This function reads </span></div>
<div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  <span class="comment">// AOI geoid heights from NGA's</span></div>
<div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  <span class="comment">// reformatted EGM 2008 geoid height file.</span></div>
<div class="line"><a name="l00924"></a><span class="lineno"> 924</span> </div>
<div class="line"><a name="l00925"></a><span class="lineno"> 925</span>  <span class="comment">// The grid data is arranged in latitude rows, </span></div>
<div class="line"><a name="l00926"></a><span class="lineno"> 926</span>  <span class="comment">// with the northernmost rows first, and with the</span></div>
<div class="line"><a name="l00927"></a><span class="lineno"> 927</span>  <span class="comment">// geoid heights arranged west-to-east within each row. </span></div>
<div class="line"><a name="l00928"></a><span class="lineno"> 928</span> </div>
<div class="line"><a name="l00929"></a><span class="lineno"> 929</span>  <span class="comment">// Thread locks are not needed here, because this function</span></div>
<div class="line"><a name="l00930"></a><span class="lineno"> 930</span>  <span class="comment">// can only be invoked by the bicubic spline geoidHeight function;</span></div>
<div class="line"><a name="l00931"></a><span class="lineno"> 931</span>  <span class="comment">// the thread locks reside in the bicubic spline's geoidHeight function.</span></div>
<div class="line"><a name="l00932"></a><span class="lineno"> 932</span> </div>
<div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  <span class="keywordflow">try</span> {</div>
<div class="line"><a name="l00934"></a><span class="lineno"> 934</span> </div>
<div class="line"><a name="l00935"></a><span class="lineno"> 935</span>  <span class="keywordtype">int</span> endRow;</div>
<div class="line"><a name="l00936"></a><span class="lineno"> 936</span>  <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l00937"></a><span class="lineno"> 937</span>  <span class="keywordtype">int</span> index0;</div>
<div class="line"><a name="l00938"></a><span class="lineno"> 938</span>  <span class="keywordtype">int</span> index1;</div>
<div class="line"><a name="l00939"></a><span class="lineno"> 939</span>  <span class="keywordtype">int</span> index2;</div>
<div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  <span class="keywordtype">int</span> kount;</div>
<div class="line"><a name="l00941"></a><span class="lineno"> 941</span>  <span class="keywordtype">int</span> startCol;</div>
<div class="line"><a name="l00942"></a><span class="lineno"> 942</span>  <span class="keywordtype">int</span> startRow;</div>
<div class="line"><a name="l00943"></a><span class="lineno"> 943</span> </div>
<div class="line"><a name="l00944"></a><span class="lineno"> 944</span>  std::ifstream fin;</div>
<div class="line"><a name="l00945"></a><span class="lineno"> 945</span> </div>
<div class="line"><a name="l00946"></a><span class="lineno"> 946</span>  <span class="comment">// INITIALIZE .....</span></div>
<div class="line"><a name="l00947"></a><span class="lineno"> 947</span> </div>
<div class="line"><a name="l00948"></a><span class="lineno"> 948</span>  fin.open( </div>
<div class="line"><a name="l00949"></a><span class="lineno"> 949</span>  <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ad88b9ca76db17ad92ac9a8b93015d415">_gridFname</a>.c_str(), </div>
<div class="line"><a name="l00950"></a><span class="lineno"> 950</span>  std::ifstream::binary | std::ifstream::in ); </div>
<div class="line"><a name="l00951"></a><span class="lineno"> 951</span> </div>
<div class="line"><a name="l00952"></a><span class="lineno"> 952</span>  <span class="keywordflow">if</span> ( fin.fail() ) <span class="keywordflow">return</span>( 1 );</div>
<div class="line"><a name="l00953"></a><span class="lineno"> 953</span> </div>
<div class="line"><a name="l00954"></a><span class="lineno"> 954</span>  <span class="keyword">delete</span>[] <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a>; <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a> = NULL;</div>
<div class="line"><a name="l00955"></a><span class="lineno"> 955</span> </div>
<div class="line"><a name="l00956"></a><span class="lineno"> 956</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a> = <span class="keyword">new</span> <span class="keywordtype">float</span>[ <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a3558b30ea151fa1ba2dc596ed25c04e6">_nAoiRows</a> * <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a> ];</div>
<div class="line"><a name="l00957"></a><span class="lineno"> 957</span> </div>
<div class="line"><a name="l00958"></a><span class="lineno"> 958</span>  <span class="keywordflow">if</span> ( NULL == <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a> ) <span class="keywordflow">return</span> ( 1 ); </div>
<div class="line"><a name="l00959"></a><span class="lineno"> 959</span> </div>
<div class="line"><a name="l00960"></a><span class="lineno"> 960</span>  <span class="comment">// READ THE AOI GRID's GEOID HEIGHTS .....</span></div>
<div class="line"><a name="l00961"></a><span class="lineno"> 961</span> </div>
<div class="line"><a name="l00962"></a><span class="lineno"> 962</span>  index0 = 0; <span class="comment">// Starting AOI grid locaion</span></div>
<div class="line"><a name="l00963"></a><span class="lineno"> 963</span> </div>
<div class="line"><a name="l00964"></a><span class="lineno"> 964</span>  startRow = <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ad5b89027dcb469390cab78a8d887061f">_maxAoiRowIndex</a>; </div>
<div class="line"><a name="l00965"></a><span class="lineno"> 965</span>  endRow = <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a882f33f382cab5ae03aa692772f0000b">_minAoiRowIndex</a>;</div>
<div class="line"><a name="l00966"></a><span class="lineno"> 966</span> </div>
<div class="line"><a name="l00967"></a><span class="lineno"> 967</span>  index1 = <span class="comment">// Starting worldwide file location (bytes)</span></div>
<div class="line"><a name="l00968"></a><span class="lineno"> 968</span>  BYTES_IN_HEADER + </div>
<div class="line"><a name="l00969"></a><span class="lineno"> 969</span>  BYTES_PER_FLOAT *</div>
<div class="line"><a name="l00970"></a><span class="lineno"> 970</span>  ( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8dcff9e0148c01bf07485506daaaeda4">_minAoiColIndex</a> +</div>
<div class="line"><a name="l00971"></a><span class="lineno"> 971</span>  ( <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a2286085cfe409a3d1d0124b32aea5ad0">_nGridRows</a> - startRow - 1 ) * <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ab922a0a4cd247d0eb260d73e566152b4">_nGridCols</a> );</div>
<div class="line"><a name="l00972"></a><span class="lineno"> 972</span> </div>
<div class="line"><a name="l00973"></a><span class="lineno"> 973</span>  <span class="keywordflow">for</span> ( i = startRow; i >= endRow; i-- ) </div>
<div class="line"><a name="l00974"></a><span class="lineno"> 974</span>  {</div>
<div class="line"><a name="l00975"></a><span class="lineno"> 975</span>  <span class="comment">// Read row's geoid heights .....</span></div>
<div class="line"><a name="l00976"></a><span class="lineno"> 976</span> </div>
<div class="line"><a name="l00977"></a><span class="lineno"> 977</span>  fin.seekg( index1 );</div>
<div class="line"><a name="l00978"></a><span class="lineno"> 978</span> </div>
<div class="line"><a name="l00979"></a><span class="lineno"> 979</span>  fin.read( </div>
<div class="line"><a name="l00980"></a><span class="lineno"> 980</span>  (<span class="keywordtype">char</span>*) ( &<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a>[ index0 ] ), </div>
<div class="line"><a name="l00981"></a><span class="lineno"> 981</span>  ( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a> * BYTES_PER_FLOAT ));</div>
<div class="line"><a name="l00982"></a><span class="lineno"> 982</span> </div>
<div class="line"><a name="l00983"></a><span class="lineno"> 983</span>  <span class="keywordflow">if</span> ( fin.fail() ) { fin.close(); <span class="keywordflow">return</span>( 1 ); }</div>
<div class="line"><a name="l00984"></a><span class="lineno"> 984</span> </div>
<div class="line"><a name="l00985"></a><span class="lineno"> 985</span>  <span class="comment">// If needed, convert to LITTLE-ENDIAN format .....</span></div>
<div class="line"><a name="l00986"></a><span class="lineno"> 986</span> </div>
<div class="line"><a name="l00987"></a><span class="lineno"> 987</span> <span class="preprocessor"> #if LITTLE_ENDIAN</span></div>
<div class="line"><a name="l00988"></a><span class="lineno"> 988</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00989"></a><span class="lineno"> 989</span>  this-><a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a3ec51d3d35bfcc64a071299404d3d77d">swapBytes</a>( </div>
<div class="line"><a name="l00990"></a><span class="lineno"> 990</span>  &<a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a8642ad6b5e874203a9f72fc73fd55f65">_heightGrid</a>[ index0 ], </div>
<div class="line"><a name="l00991"></a><span class="lineno"> 991</span>  BYTES_PER_FLOAT, <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a> ); </div>
<div class="line"><a name="l00992"></a><span class="lineno"> 992</span> </div>
<div class="line"><a name="l00993"></a><span class="lineno"> 993</span> <span class="preprocessor"> #endif</span></div>
<div class="line"><a name="l00994"></a><span class="lineno"> 994</span> <span class="preprocessor"></span> </div>
<div class="line"><a name="l00995"></a><span class="lineno"> 995</span>  index0 += <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#ab6486c26d7c9406bf540c2a3502e39a0">_nAoiCols</a>;</div>
<div class="line"><a name="l00996"></a><span class="lineno"> 996</span>  index1 += ( BYTES_PER_FLOAT * <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ab922a0a4cd247d0eb260d73e566152b4">_nGridCols</a> );</div>
<div class="line"><a name="l00997"></a><span class="lineno"> 997</span>  }</div>
<div class="line"><a name="l00998"></a><span class="lineno"> 998</span> </div>
<div class="line"><a name="l00999"></a><span class="lineno"> 999</span>  fin.close();</div>
<div class="line"><a name="l01000"></a><span class="lineno"> 1000</span> </div>
<div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>  } <span class="comment">// End of exceptions' try block</span></div>
<div class="line"><a name="l01002"></a><span class="lineno"> 1002</span> </div>
<div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>  <span class="keywordflow">catch</span> ( ... ) { <span class="keywordflow">return</span>( 1 ); }</div>
<div class="line"><a name="l01004"></a><span class="lineno"> 1004</span> </div>
<div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>  <span class="keywordflow">return</span> ( 0 ); <span class="comment">// Normal-return flag</span></div>
<div class="line"><a name="l01006"></a><span class="lineno"> 1006</span> </div>
<div class="line"><a name="l01007"></a><span class="lineno"> 1007</span> } <span class="comment">// End of function Egm2008AoiGrid::loadGrid</span></div>
<div class="line"><a name="l01008"></a><span class="lineno"> 1008</span> </div>
<div class="line"><a name="l01009"></a><span class="lineno"> 1009</span> </div>
<div class="line"><a name="l01010"></a><span class="lineno"> 1010</span> <span class="comment">// *******************************</span></div>
<div class="line"><a name="l01011"></a><span class="lineno"> 1011</span> <span class="comment">// * Read header's metadata from *</span></div>
<div class="line"><a name="l01012"></a><span class="lineno"> 1012</span> <span class="comment">// * reformatted version * </span></div>
<div class="line"><a name="l01013"></a><span class="lineno"> 1013</span> <span class="comment">// * of NGA's geoid-height grid *</span></div>
<div class="line"><a name="l01014"></a><span class="lineno"> 1014</span> <span class="comment">// *******************************</span></div>
<div class="line"><a name="l01015"></a><span class="lineno"> 1015</span> </div>
<div class="line"><a name="l01016"></a><span class="lineno"> 1016</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01017"></a><span class="lineno"><a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a082b964f0e6d2772abde17137ede276e"> 1017</a></span> <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a082b964f0e6d2772abde17137ede276e">Egm2008AoiGrid::loadGridMetadata</a>( <span class="keywordtype">void</span> )</div>
<div class="line"><a name="l01018"></a><span class="lineno"> 1018</span> {</div>
<div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>  <span class="comment">// November 19, 2010: Version 1.00</span></div>
<div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>  <span class="comment">// February 11, 2011: Version 2.00:</span></div>
<div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>  <span class="comment">// the function's name was changed following code review</span></div>
<div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>  <span class="comment">// June 4, 2013: Version 2.01</span></div>
<div class="line"><a name="l01023"></a><span class="lineno"> 1023</span> </div>
<div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>  <span class="comment">// This function reads </span></div>
<div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>  <span class="comment">// the grid metadata from NGA's </span></div>
<div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>  <span class="comment">// reformatted EGM 2008 geoid height file. </span></div>
<div class="line"><a name="l01027"></a><span class="lineno"> 1027</span> </div>
<div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>  <span class="comment">// THE GRID METADATA OCCUPIES 28 BYTES AT THE</span></div>
<div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>  <span class="comment">// BEGINNING OF THE REFORMATTED WORLDWIDE FILE.</span></div>
<div class="line"><a name="l01030"></a><span class="lineno"> 1030</span> </div>
<div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>  <span class="comment">// Thread locks are not needed here, because this</span></div>
<div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>  <span class="comment">// function can only be invoked by the constructor;</span></div>
<div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>  <span class="comment">// thread locks / unlocks reside in the constructors.</span></div>
<div class="line"><a name="l01034"></a><span class="lineno"> 1034</span> </div>
<div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>  <span class="keywordflow">try</span> {</div>
<div class="line"><a name="l01036"></a><span class="lineno"> 1036</span> </div>
<div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>  <span class="keywordtype">double</span> ewDelta;</div>
<div class="line"><a name="l01038"></a><span class="lineno"> 1038</span> </div>
<div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>  std::ifstream fin;</div>
<div class="line"><a name="l01040"></a><span class="lineno"> 1040</span> </div>
<div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>  <span class="comment">// INITIALIZE .....</span></div>
<div class="line"><a name="l01042"></a><span class="lineno"> 1042</span> </div>
<div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>  fin.open( </div>
<div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>  <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ad88b9ca76db17ad92ac9a8b93015d415">_gridFname</a>.c_str(), </div>
<div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>  std::ifstream::binary | std::ifstream::in ); </div>
<div class="line"><a name="l01046"></a><span class="lineno"> 1046</span> </div>
<div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>  <span class="keywordflow">if</span> ( fin.fail() ) { <span class="keywordflow">return</span>( 1 ); }</div>
<div class="line"><a name="l01048"></a><span class="lineno"> 1048</span> </div>
<div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>  <span class="comment">// READ AND STORE HEADER .....</span></div>
<div class="line"><a name="l01050"></a><span class="lineno"> 1050</span> </div>
<div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>  fin.read((<span class="keywordtype">char</span>*) &<a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a819a4f7158e690c7b9bd1d954f31bb41">_nGridPad</a>, BYTES_PER_INT );</div>
<div class="line"><a name="l01052"></a><span class="lineno"> 1052</span> </div>
<div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>  <span class="keywordflow">if</span> ( fin.fail() ) { fin.close(); <span class="keywordflow">return</span>( 1 ); }</div>
<div class="line"><a name="l01054"></a><span class="lineno"> 1054</span> </div>
<div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>  fin.read((<span class="keywordtype">char</span>*) &<a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a90a671a7b5bb7bc81792875f08b9af6a">_nOrigRows</a>, BYTES_PER_INT );</div>
<div class="line"><a name="l01056"></a><span class="lineno"> 1056</span> </div>
<div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>  <span class="keywordflow">if</span> ( fin.fail() ) { fin.close(); <span class="keywordflow">return</span>( 1 ); }</div>
<div class="line"><a name="l01058"></a><span class="lineno"> 1058</span> </div>
<div class="line"><a name="l01059"></a><span class="lineno"> 1059</span>  fin.read((<span class="keywordtype">char</span>*) &<a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#aed72b3036e11da52182a8f338d5a372d">_nOrigCols</a>, BYTES_PER_INT );</div>
<div class="line"><a name="l01060"></a><span class="lineno"> 1060</span> </div>
<div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>  <span class="keywordflow">if</span> ( fin.fail() ) { fin.close(); <span class="keywordflow">return</span>( 1 ); }</div>
<div class="line"><a name="l01062"></a><span class="lineno"> 1062</span> </div>
<div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>  fin.read((<span class="keywordtype">char</span>*) &<a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ae4610b8cb5c6943b093d6d8c869d74b0">_dLat</a>, BYTES_PER_DOUBLE );</div>
<div class="line"><a name="l01064"></a><span class="lineno"> 1064</span> </div>
<div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>  <span class="keywordflow">if</span> ( fin.fail() ) { fin.close(); <span class="keywordflow">return</span>( 1 ); }</div>
<div class="line"><a name="l01066"></a><span class="lineno"> 1066</span> </div>
<div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>  fin.read((<span class="keywordtype">char</span>*) &<a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ac9316fa466f6a953115c4bbb839f7718">_dLon</a>, BYTES_PER_DOUBLE );</div>
<div class="line"><a name="l01068"></a><span class="lineno"> 1068</span> </div>
<div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>  <span class="keywordflow">if</span> ( fin.fail() ) { fin.close(); <span class="keywordflow">return</span>( 1 ); }</div>
<div class="line"><a name="l01070"></a><span class="lineno"> 1070</span> </div>
<div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>  fin.close();</div>
<div class="line"><a name="l01072"></a><span class="lineno"> 1072</span> </div>
<div class="line"><a name="l01073"></a><span class="lineno"> 1073</span> <span class="preprocessor"> #if LITTLE_ENDIAN</span></div>
<div class="line"><a name="l01074"></a><span class="lineno"> 1074</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>  this-><a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a3ec51d3d35bfcc64a071299404d3d77d">swapBytes</a>( &<a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a819a4f7158e690c7b9bd1d954f31bb41">_nGridPad</a>, BYTES_PER_INT, 1 );</div>
<div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>  this-><a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a3ec51d3d35bfcc64a071299404d3d77d">swapBytes</a>( &<a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a90a671a7b5bb7bc81792875f08b9af6a">_nOrigRows</a>, BYTES_PER_INT, 1 );</div>
<div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>  this-><a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a3ec51d3d35bfcc64a071299404d3d77d">swapBytes</a>( &<a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#aed72b3036e11da52182a8f338d5a372d">_nOrigCols</a>, BYTES_PER_INT, 1 );</div>
<div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>  this-><a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a3ec51d3d35bfcc64a071299404d3d77d">swapBytes</a>( &<a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ae4610b8cb5c6943b093d6d8c869d74b0">_dLat</a>, BYTES_PER_DOUBLE, 1 );</div>
<div class="line"><a name="l01079"></a><span class="lineno"> 1079</span>  this-><a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a3ec51d3d35bfcc64a071299404d3d77d">swapBytes</a>( &<a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ac9316fa466f6a953115c4bbb839f7718">_dLon</a>, BYTES_PER_DOUBLE, 1 );</div>
<div class="line"><a name="l01080"></a><span class="lineno"> 1080</span> </div>
<div class="line"><a name="l01081"></a><span class="lineno"> 1081</span> <span class="preprocessor"> #endif</span></div>
<div class="line"><a name="l01082"></a><span class="lineno"> 1082</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>  <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ae4610b8cb5c6943b093d6d8c869d74b0">_dLat</a> *= RAD_PER_DEG; <span class="comment">// grid file stores these in degrees</span></div>
<div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>  <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ac9316fa466f6a953115c4bbb839f7718">_dLon</a> *= RAD_PER_DEG; <span class="comment">// grid file stores these in degrees</span></div>
<div class="line"><a name="l01085"></a><span class="lineno"> 1085</span> </div>
<div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>  <span class="comment">// SET DERIVED METADATA .....</span></div>
<div class="line"><a name="l01087"></a><span class="lineno"> 1087</span> </div>
<div class="line"><a name="l01088"></a><span class="lineno"> 1088</span>  <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a2286085cfe409a3d1d0124b32aea5ad0">_nGridRows</a> = <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a90a671a7b5bb7bc81792875f08b9af6a">_nOrigRows</a> + ( 2 * <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a819a4f7158e690c7b9bd1d954f31bb41">_nGridPad</a> );</div>
<div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>  <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ab922a0a4cd247d0eb260d73e566152b4">_nGridCols</a> = <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#aed72b3036e11da52182a8f338d5a372d">_nOrigCols</a> + ( 2 * <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a819a4f7158e690c7b9bd1d954f31bb41">_nGridPad</a> ) + 1;</div>
<div class="line"><a name="l01090"></a><span class="lineno"> 1090</span> </div>
<div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>  ewDelta = <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ac9316fa466f6a953115c4bbb839f7718">_dLon</a> * SEMI_MAJOR_AXIS;</div>
<div class="line"><a name="l01092"></a><span class="lineno"> 1092</span> </div>
<div class="line"><a name="l01093"></a><span class="lineno"> 1093</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a5fb7870a9e94a08e3e606a1ad715864a">_nomAoiCols</a> = 1 + int( 150.0 * MTR_PER_NM / ewDelta );</div>
<div class="line"><a name="l01094"></a><span class="lineno"> 1094</span> </div>
<div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>  <span class="keywordflow">if</span>( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a5fb7870a9e94a08e3e606a1ad715864a">_nomAoiCols</a> < 25 ) <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a5fb7870a9e94a08e3e606a1ad715864a">_nomAoiCols</a> = 25;</div>
<div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>  <span class="keywordflow">if</span>( <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a5fb7870a9e94a08e3e606a1ad715864a">_nomAoiCols</a> > <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#aed72b3036e11da52182a8f338d5a372d">_nOrigCols</a>/40 ) <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a5fb7870a9e94a08e3e606a1ad715864a">_nomAoiCols</a> = <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#aed72b3036e11da52182a8f338d5a372d">_nOrigCols</a> / 40;</div>
<div class="line"><a name="l01097"></a><span class="lineno"> 1097</span> </div>
<div class="line"><a name="l01098"></a><span class="lineno"> 1098</span>  <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a97e78615987edf1321fc4075f7800219">_nomAoiRows</a> = <a class="code" href="class_m_s_p_1_1_egm2008_aoi_grid.html#a5fb7870a9e94a08e3e606a1ad715864a">_nomAoiCols</a>;</div>
<div class="line"><a name="l01099"></a><span class="lineno"> 1099</span> </div>
<div class="line"><a name="l01100"></a><span class="lineno"> 1100</span>  <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a7ac9a8fbfd6905df0c8bf03ed8f769ff">_baseLatitude</a> =</div>
<div class="line"><a name="l01101"></a><span class="lineno"> 1101</span>  -PIDIV2 - <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ae4610b8cb5c6943b093d6d8c869d74b0">_dLat</a> * double( <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a819a4f7158e690c7b9bd1d954f31bb41">_nGridPad</a> ); <span class="comment">// radians</span></div>
<div class="line"><a name="l01102"></a><span class="lineno"> 1102</span>  <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#aee81cc3285e187585460b4184474b934">_baseLongitude</a> =</div>
<div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>  0.0 - <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#ac9316fa466f6a953115c4bbb839f7718">_dLon</a> * double( <a class="code" href="class_m_s_p_1_1_egm2008_geoid_grid.html#a819a4f7158e690c7b9bd1d954f31bb41">_nGridPad</a> ); <span class="comment">// radians</span></div>
<div class="line"><a name="l01104"></a><span class="lineno"> 1104</span> </div>
<div class="line"><a name="l01105"></a><span class="lineno"> 1105</span>  } <span class="comment">// End of exceptions' try block</span></div>
<div class="line"><a name="l01106"></a><span class="lineno"> 1106</span> </div>
<div class="line"><a name="l01107"></a><span class="lineno"> 1107</span>  <span class="keywordflow">catch</span> ( ... ) { <span class="keywordflow">return</span>( 1 ); }</div>
<div class="line"><a name="l01108"></a><span class="lineno"> 1108</span> </div>
<div class="line"><a name="l01109"></a><span class="lineno"> 1109</span>  <span class="keywordflow">return</span>( 0 ); <span class="comment">// Normal-return flag</span></div>
<div class="line"><a name="l01110"></a><span class="lineno"> 1110</span> </div>
<div class="line"><a name="l01111"></a><span class="lineno"> 1111</span> } <span class="comment">// End of function Egm2008AoiGrid::loadGridMetadata</span></div>
<div class="line"><a name="l01112"></a><span class="lineno"> 1112</span> </div>
<div class="line"><a name="l01113"></a><span class="lineno"> 1113</span> <span class="comment">// CLASSIFICATION: UNCLASSIFIED</span></div>
<div class="line"><a name="l01114"></a><span class="lineno"> 1114</span> </div>
</div><!-- fragment --></div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated on Tue Feb 16 2016 14:54:02 for GeographicTranslator by doxygen 1.8.2
</small></address>
</body>
</html>
|
