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
|
/**
* Program that reads an ACM scenery file and generates on standard output
* ILS records for each runway found. The generated ILS are all assumed to be
* ILS/DME, then with localized antenna, glide path antenna and DME antenna.
* The name and the frequency of each ILS are left as place holders to be
* filled by hand in with data from other sources.
*
* Usage:
*
* ./create-ils.exe SCENERY
*
* This program has been used to complete the sceneries based on the
* ourairports.com data base, where all the ILS are missing.
*
* @file
* @author Umberto Salsi <salsi@icosaedro.it>
* @version $Date: 2017/11/09 05:16:33 $
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../src/util/error.h"
#include "../src/util/memory.h"
#include "../src/util/reader.h"
#include "../src/util/units.h"
#include "../src/dis/dis/earth.h"
static int parseDouble(reader_Type *in, char *s, double *x)
{
char *tail;
*x = strtod(s, &tail);
if( tail == s || *tail != 0 || ! isfinite(*x) ){
fprintf(stderr, "%s:%d: invalid decimal number syntax: %s\n",
reader_getPath(in), reader_getLineNumber(in), s);
return 0;
}
return 1;
}
static void generateILS(char *rwy, earth_LatLonAlt *end1, earth_LatLonAlt *end2)
{
VPoint end1_xyz;
earth_LatLonAltToXYZ(end1, &end1_xyz);
VPoint end2_xyz;
earth_LatLonAltToXYZ(end2, &end2_xyz);
// Locator antenna 300 m away end2:
VPoint fwd = end2_xyz;
VSub(&fwd, &end1_xyz, &fwd);
double mag = VMagnitude(&fwd);
fwd.x *= 300/mag;
fwd.y *= 300/mag;
fwd.z *= 300/mag;
VPoint loc_xyz = end2_xyz;
VAdd(&loc_xyz, &fwd, &loc_xyz);
earth_LatLonAlt loc;
earth_XYZToLatLonAlt(&loc_xyz, &loc);
VMatrix XYZToLocNED;
earth_generateWorldToLocalMatrix(&loc, &XYZToLocNED);
VPoint a_ned;
VTransform(&end1_xyz, &XYZToLocNED, &a_ned);
double bearing = atan2(-a_ned.y, -a_ned.x);
if( bearing < 0 )
bearing += 2*M_PI;
// GS antenna 100 m right end1:
fwd = end2_xyz;
VSub(&fwd, &end1_xyz, &fwd);
mag = VMagnitude(&fwd);
fwd.x *= 100/mag;
fwd.y *= 100/mag;
fwd.z *= 100/mag;
VMatrix r;
VIdentMatrix(&r);
VRotate(&r, ZRotation, M_PI/2);
VPoint gs_ned;
VTransform_(&fwd, &r, &gs_ned);
VAdd(&gs_ned, &a_ned, &gs_ned);
VPoint gs_xyz;
VReverseTransform(&gs_ned, &XYZToLocNED, &gs_xyz);
earth_LatLonAlt gs;
earth_XYZToLatLonAlt(&gs_xyz, &gs);
char loc_lat_s[99];
earth_latitudeToString(loc_lat_s, sizeof(loc_lat_s), loc.latitude, earth_LLM_DMS);
char loc_lon_s[99];
earth_longitudeToString(loc_lon_s, sizeof(loc_lon_s), loc.longitude, earth_LLM_DMS);
char gs_lat_s[99];
earth_latitudeToString(gs_lat_s, sizeof(gs_lat_s), gs.latitude, earth_LLM_DMS);
char gs_lon_s[99];
earth_longitudeToString(gs_lon_s, sizeof(gs_lon_s), gs.longitude, earth_LLM_DMS);
printf("ILS %s ILS/DME name vhf %s %s %s %s %4.0f 5 %5.1f 3\n",
rwy, loc_lat_s, loc_lon_s, gs_lat_s, gs_lon_s, gs.z, units_RADtoDEG(bearing));
}
static void parseRunway(reader_Type *in, int argc, char *argv[])
{
if( argc != 10 ){
fprintf(stderr, "%s:%d: invalid number of fields in RWY record: %d\n",
reader_getPath(in), reader_getLineNumber(in), argc);
return;
}
double lat1, lon1, lat2, lon2;
if( ! earth_parseLatitude(argv[6], &lat1) ){
fprintf(stderr, "%s:%d: invalid latitude: %s\n",
reader_getPath(in), reader_getLineNumber(in), argv[6]);
return;
}
if( ! earth_parseLongitude(argv[7], &lon1) ){
fprintf(stderr, "%s:%d: invalid longitude: %s\n",
reader_getPath(in), reader_getLineNumber(in), argv[7]);
return;
}
if( ! earth_parseLatitude(argv[8], &lat2) ){
fprintf(stderr, "%s:%d: invalid latitude: %s\n",
reader_getPath(in), reader_getLineNumber(in), argv[8]);
return;
}
if( ! earth_parseLongitude(argv[9], &lon2) ){
fprintf(stderr, "%s:%d: invalid longitude: %s\n",
reader_getPath(in), reader_getLineNumber(in), argv[9]);
return;
}
char id1[9], id2[9];
char *id = argv[2];
char *slash = strchr(id, '/');
if( slash == NULL ){
fprintf(stderr, "%s:%d: missing slash character in runway name: %s\n",
reader_getPath(in), reader_getLineNumber(in), id);
strcpy(id1, "?");
strcpy(id2, "?");
} else {
*slash = 0;
memory_strcpy(id1, sizeof(id1), id);
memory_strcpy(id2, sizeof(id2), slash+1);
}
double elevation;
if( ! parseDouble(in, argv[3], &elevation) )
elevation = 0.0;
earth_LatLonAlt end1;
end1.latitude = lat1; end1.longitude = lon1; end1.z = elevation;
earth_LatLonAlt end2;
end2.latitude = lat2; end2.longitude = lon2; end2.z = elevation;
printf("# %s:\n", argv[1]);
generateILS(id1, &end1, &end2);
generateILS(id2, &end2, &end1);
}
static int parseScenery(char *path)
{
reader_Type *in = reader_new(path);
char line[999];
while( reader_getLine(in, line, sizeof(line)) ){
// Ignore empty and comment lines.
if( line[0] == '\0' || line[0] == '#' )
continue;
int argc;
char *argv[99];
if( ! reader_split(line, &argc, argv, 32) ){
fprintf(stderr, "%s:%d: too many fields -- ignoring line\n",
reader_getPath(in), reader_getLineNumber(in));
continue;
}
if( argc > 0 && strcmp(argv[0], "RWY") == 0 )
parseRunway(in, argc, argv);
}
if( reader_getError(in) != NULL )
fprintf(stderr, "%s: %s", reader_getPath(in), reader_getError(in));
memory_dispose(in);
return 1;
}
int main(int argc, char** argv)
{
error_init(argv[0]);
if( argc != 2 ){
fprintf(stderr, "ERROR: required just one argument.\n");
return 1;
}
return parseScenery(argv[1])? 0 : 1;
}
|
