1 // apt_loader.cxx -- a front end loader of the apt.dat file. This loader
2 // populates the runway and basic classes.
4 // Written by Curtis Olson, started August 2000.
6 // Copyright (C) 2000 Curtis L. Olson - http://www.flightgear.org/~curt
8 // This program is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU General Public License as
10 // published by the Free Software Foundation; either version 2 of the
11 // License, or (at your option) any later version.
13 // This program is distributed in the hope that it will be useful, but
14 // WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
29 #include "apt_loader.hxx"
31 #include <simgear/compiler.h>
33 #include <stdlib.h> // atof(), atoi()
34 #include <string.h> // memchr()
35 #include <ctype.h> // isspace()
37 #include <simgear/constants.h>
38 #include <simgear/debug/logstream.hxx>
39 #include <simgear/misc/sgstream.hxx>
40 #include <simgear/misc/strutils.hxx>
41 #include <simgear/structure/exception.hxx>
42 #include <simgear/misc/sg_path.hxx>
46 #include "airport.hxx"
47 #include "runways.hxx"
48 #include "pavement.hxx"
49 #include <Navaids/NavDataCache.hxx>
50 #include <ATC/CommStation.hxx>
56 typedef SGSharedPtr<FGPavement> FGPavementPtr;
58 static FGPositioned::Type fptypeFromRobinType(int aType)
61 case 1: return FGPositioned::AIRPORT;
62 case 16: return FGPositioned::SEAPORT;
63 case 17: return FGPositioned::HELIPORT;
65 SG_LOG(SG_GENERAL, SG_ALERT, "unsupported type:" << aType);
66 throw sg_range_exception("Unsupported airport type", "fptypeFromRobinType");
84 cache = NavDataCache::instance();
87 void parseAPT(const SGPath &aptdb_file)
89 sg_gzifstream in( aptdb_file.str() );
91 if ( !in.is_open() ) {
92 SG_LOG( SG_GENERAL, SG_ALERT, "Cannot open file: " << aptdb_file );
100 unsigned int line_id = 0;
101 unsigned int line_num = 0;
103 while ( ! in.eof() ) {
104 in.getline(tmp, 2048);
105 line = tmp; // string copy, ack
108 if ( line.empty() || isspace(tmp[0]) || tmp[0] == '#' ) {
112 if (line.size() >= 3) {
113 char *p = (char *)memchr(tmp, ' ', 3);
119 if ( tmp[0] == 'I' || tmp[0] == 'A' ) {
120 // First line, indicates IBM ("I") or Macintosh ("A")
123 // move past this line and read and discard the next line
124 // which is the version and copyright information
125 in.getline(tmp, 2048);
127 if ( strlen(tmp) > 5 ) {
128 char *p = (char *)memchr(tmp, ' ', 5);
132 SG_LOG( SG_GENERAL, SG_INFO, "Data file version = " << tmp );
133 } else if ( line_id == 1 /* Airport */ ||
134 line_id == 16 /* Seaplane base */ ||
135 line_id == 17 /* Heliport */ ) {
136 parseAirportLine(simgear::strutils::split(line));
137 } else if ( line_id == 10 ) { // Runway v810
138 parseRunwayLine810(simgear::strutils::split(line));
139 } else if ( line_id == 100 ) { // Runway v850
140 parseRunwayLine850(simgear::strutils::split(line));
141 } else if ( line_id == 101 ) { // Water Runway v850
142 parseWaterRunwayLine850(simgear::strutils::split(line));
143 } else if ( line_id == 102 ) { // Helipad v850
144 parseHelipadLine850(simgear::strutils::split(line));
145 } else if ( line_id == 18 ) {
146 // beacon entry (ignore)
147 } else if ( line_id == 14 ) {
148 // control tower entry
149 vector<string> token(simgear::strutils::split(line));
151 double lat = atof( token[1].c_str() );
152 double lon = atof( token[2].c_str() );
153 double elev = atof( token[3].c_str() );
154 tower = SGGeod::fromDegFt(lon, lat, elev + last_apt_elev);
157 cache->insertTower(currentAirportID, tower);
158 } else if ( line_id == 19 ) {
159 // windsock entry (ignore)
160 } else if ( line_id == 20 ) {
161 // Taxiway sign (ignore)
162 } else if ( line_id == 21 ) {
163 // lighting objects (ignore)
164 } else if ( line_id == 15 ) {
165 // custom startup locations (ignore)
166 } else if ( line_id == 0 ) {
168 } else if ( line_id >= 50 && line_id <= 56) {
169 parseCommLine(line_id, simgear::strutils::split(line));
170 } else if ( line_id == 110 ) {
172 parsePavementLine850(simgear::strutils::split(line, 0, 4));
173 } else if ( line_id >= 111 && line_id <= 114 ) {
175 parsePavementNodeLine850(line_id, simgear::strutils::split(line));
176 } else if ( line_id >= 115 && line_id <= 116 ) {
177 // other pavement nodes (ignore)
178 } else if ( line_id == 120 ) {
180 } else if ( line_id == 130 ) {
182 } else if ( line_id >= 1000 ) {
183 // airport traffic flow (ignore)
184 } else if ( line_id == 99 ) {
185 SG_LOG( SG_GENERAL, SG_DEBUG, "End of file reached" );
187 SG_LOG( SG_GENERAL, SG_ALERT,
188 "Unknown line(#" << line_num << ") in apt.dat file: " << line );
197 vector<string> token;
198 double rwy_lat_accum;
199 double rwy_lon_accum;
200 double last_rwy_heading;
204 double last_apt_elev;
206 string last_apt_info;
207 string pavement_ident;
210 //vector<FGRunwayPtr> runways;
211 //vector<FGTaxiwayPtr> taxiways;
212 vector<FGPavementPtr> pavements;
215 PositionedID currentAirportID;
219 if (currentAirportID == 0) {
224 currentAirportID = 0;
225 SG_LOG(SG_GENERAL, SG_ALERT, "ERROR: No runways for " << last_apt_id
230 double lat = rwy_lat_accum / (double)rwy_count;
231 double lon = rwy_lon_accum / (double)rwy_count;
234 // tower height hard coded for now...
235 const float tower_height = 50.0f;
236 // make a little off the heading for 1 runway airports...
237 float fudge_lon = fabs(sin(last_rwy_heading * SGD_DEGREES_TO_RADIANS)) * .003f;
238 float fudge_lat = .003f - fudge_lon;
239 tower = SGGeod::fromDegFt(lon + fudge_lon, lat + fudge_lat, last_apt_elev + tower_height);
241 cache->insertTower(currentAirportID, tower);
244 SGGeod pos(SGGeod::fromDegFt(lon, lat, last_apt_elev));
245 cache->updatePosition(currentAirportID, pos);
247 currentAirportID = 0;
250 void parseAirportLine(const vector<string>& token)
252 const string& id(token[4]);
253 double elev = atof( token[1].c_str() );
255 // finish the previous airport
258 last_apt_elev = elev;
263 for ( unsigned int i = 5; i < token.size() - 1; ++i ) {
264 name += token[i] + " ";
266 name += token[token.size() - 1];
268 // clear runway list for start of next airport
273 int robinType = atoi(token[0].c_str());
274 currentAirportID = cache->insertAirport(fptypeFromRobinType(robinType), id, name);
277 void parseRunwayLine810(const vector<string>& token)
279 double lat = atof( token[1].c_str() );
280 double lon = atof( token[2].c_str() );
281 rwy_lat_accum += lat;
282 rwy_lon_accum += lon;
285 const string& rwy_no(token[3]);
287 double heading = atof( token[4].c_str() );
288 double length = atoi( token[5].c_str() );
289 double width = atoi( token[8].c_str() );
290 length *= SG_FEET_TO_METER;
291 width *= SG_FEET_TO_METER;
293 // adjust lat / lon to the start of the runway/taxiway, not the middle
294 SGGeod pos_1 = SGGeodesy::direct( SGGeod::fromDegFt(lon, lat, last_apt_elev), heading, -length/2 );
296 last_rwy_heading = heading;
298 int surface_code = atoi( token[10].c_str() );
300 if (rwy_no[0] == 'x') { // Taxiway
301 cache->insertRunway(FGPositioned::TAXIWAY, rwy_no, pos_1, currentAirportID,
302 heading, length, width, 0.0, 0.0, surface_code);
303 } else if (rwy_no[0] == 'H') { // Helipad
304 SGGeod pos(SGGeod::fromDegFt(lon, lat, last_apt_elev));
305 cache->insertRunway(FGPositioned::HELIPAD, rwy_no, pos, currentAirportID,
306 heading, length, width, 0.0, 0.0, surface_code);
309 string rwy_displ_threshold = token[6];
311 = simgear::strutils::split( rwy_displ_threshold, "." );
312 double displ_thresh1 = atof( displ[0].c_str() );
313 double displ_thresh2 = atof( displ[1].c_str() );
314 displ_thresh1 *= SG_FEET_TO_METER;
315 displ_thresh2 *= SG_FEET_TO_METER;
317 string rwy_stopway = token[7];
319 = simgear::strutils::split( rwy_stopway, "." );
320 double stopway1 = atof( stop[0].c_str() );
321 double stopway2 = atof( stop[1].c_str() );
322 stopway1 *= SG_FEET_TO_METER;
323 stopway2 *= SG_FEET_TO_METER;
325 SGGeod pos_2 = SGGeodesy::direct( pos_1, heading, length );
327 PositionedID rwy = cache->insertRunway(FGPositioned::RUNWAY, rwy_no, pos_1,
328 currentAirportID, heading, length,
329 width, displ_thresh1, stopway1,
332 PositionedID reciprocal = cache->insertRunway(FGPositioned::RUNWAY,
333 FGRunway::reverseIdent(rwy_no), pos_2,
335 SGMiscd::normalizePeriodic(0, 360, heading + 180.0),
336 length, width, displ_thresh2, stopway2,
339 cache->setRunwayReciprocal(rwy, reciprocal);
343 void parseRunwayLine850(const vector<string>& token)
345 double width = atof( token[1].c_str() );
346 int surface_code = atoi( token[2].c_str() );
348 double lat_1 = atof( token[9].c_str() );
349 double lon_1 = atof( token[10].c_str() );
350 SGGeod pos_1(SGGeod::fromDegFt(lon_1, lat_1, 0.0));
351 rwy_lat_accum += lat_1;
352 rwy_lon_accum += lon_1;
355 double lat_2 = atof( token[18].c_str() );
356 double lon_2 = atof( token[19].c_str() );
357 SGGeod pos_2(SGGeod::fromDegFt(lon_2, lat_2, 0.0));
358 rwy_lat_accum += lat_2;
359 rwy_lon_accum += lon_2;
362 double length, heading_1, heading_2;
363 SGGeodesy::inverse( pos_1, pos_2, heading_1, heading_2, length );
365 last_rwy_heading = heading_1;
367 const string& rwy_no_1(token[8]);
368 const string& rwy_no_2(token[17]);
369 if ( rwy_no_1.size() == 0 || rwy_no_2.size() == 0 )
372 double displ_thresh1 = atof( token[11].c_str() );
373 double displ_thresh2 = atof( token[20].c_str() );
375 double stopway1 = atof( token[12].c_str() );
376 double stopway2 = atof( token[21].c_str() );
378 PositionedID rwy = cache->insertRunway(FGPositioned::RUNWAY, rwy_no_1, pos_1,
379 currentAirportID, heading_1, length,
380 width, displ_thresh1, stopway1,
383 PositionedID reciprocal = cache->insertRunway(FGPositioned::RUNWAY,
385 currentAirportID, heading_2, length,
386 width, displ_thresh2, stopway2,
389 cache->setRunwayReciprocal(rwy, reciprocal);
392 void parseWaterRunwayLine850(const vector<string>& token)
394 double width = atof( token[1].c_str() );
396 double lat_1 = atof( token[4].c_str() );
397 double lon_1 = atof( token[5].c_str() );
398 SGGeod pos_1(SGGeod::fromDegFt(lon_1, lat_1, 0.0));
399 rwy_lat_accum += lat_1;
400 rwy_lon_accum += lon_1;
403 double lat_2 = atof( token[7].c_str() );
404 double lon_2 = atof( token[8].c_str() );
405 SGGeod pos_2(SGGeod::fromDegFt(lon_2, lat_2, 0.0));
406 rwy_lat_accum += lat_2;
407 rwy_lon_accum += lon_2;
410 double length, heading_1, heading_2;
411 SGGeodesy::inverse( pos_1, pos_2, heading_1, heading_2, length );
413 last_rwy_heading = heading_1;
415 const string& rwy_no_1(token[3]);
416 const string& rwy_no_2(token[6]);
418 PositionedID rwy = cache->insertRunway(FGPositioned::RUNWAY, rwy_no_1, pos_1,
419 currentAirportID, heading_1, length,
420 width, 0.0, 0.0, 13);
422 PositionedID reciprocal = cache->insertRunway(FGPositioned::RUNWAY,
424 currentAirportID, heading_2, length,
425 width, 0.0, 0.0, 13);
427 cache->setRunwayReciprocal(rwy, reciprocal);
430 void parseHelipadLine850(const vector<string>& token)
432 double length = atof( token[5].c_str() );
433 double width = atof( token[6].c_str() );
435 double lat = atof( token[2].c_str() );
436 double lon = atof( token[3].c_str() );
437 SGGeod pos(SGGeod::fromDegFt(lon, lat, 0.0));
438 rwy_lat_accum += lat;
439 rwy_lon_accum += lon;
442 double heading = atof( token[4].c_str() );
444 last_rwy_heading = heading;
446 const string& rwy_no(token[1]);
447 int surface_code = atoi( token[7].c_str() );
449 cache->insertRunway(FGPositioned::HELIPAD, rwy_no, pos,
450 currentAirportID, heading, length,
451 width, 0.0, 0.0, surface_code);
454 void parsePavementLine850(const vector<string>& token)
456 if ( token.size() >= 5 ) {
457 pavement_ident = token[4];
458 if ( !pavement_ident.empty() && pavement_ident[pavement_ident.size()-1] == '\r' )
459 pavement_ident.erase( pavement_ident.size()-1 );
461 pavement_ident = "xx";
465 void parsePavementNodeLine850(int num, const vector<string>& token)
467 double lat = atof( token[1].c_str() );
468 double lon = atof( token[2].c_str() );
469 SGGeod pos(SGGeod::fromDegFt(lon, lat, 0.0));
472 if ( !pavement_ident.empty() ) {
473 pvt = new FGPavement( 0, pavement_ident, pos );
474 pavements.push_back( pvt );
477 pvt = pavements.back();
479 if ( num == 112 || num == 114 ) {
480 double lat_b = atof( token[3].c_str() );
481 double lon_b = atof( token[4].c_str() );
482 SGGeod pos_b(SGGeod::fromDegFt(lon_b, lat_b, 0.0));
483 pvt->addBezierNode(pos, pos_b, num == 114);
485 pvt->addNode(pos, num == 113);
489 void parseCommLine(int lineId, const vector<string>& token)
491 if ( rwy_count <= 0 ) {
492 SG_LOG( SG_GENERAL, SG_ALERT, "No runways; skipping comm for " + last_apt_id);
495 SGGeod pos = SGGeod::fromDegFt(rwy_lon_accum / (double)rwy_count,
496 rwy_lat_accum / (double)rwy_count, last_apt_elev);
498 // short int representing tens of kHz:
499 int freqKhz = atoi(token[1].c_str()) * 10;
501 FGPositioned::Type ty;
502 // Make sure we only pass on stations with at least a name
503 if (token.size() >2){
507 ty = FGPositioned::FREQ_AWOS;
508 for( size_t i = 2; i < token.size(); ++i )
510 if( token[i] == "ATIS" )
512 ty = FGPositioned::FREQ_ATIS;
518 case 51: ty = FGPositioned::FREQ_UNICOM; break;
519 case 52: ty = FGPositioned::FREQ_CLEARANCE; break;
520 case 53: ty = FGPositioned::FREQ_GROUND; break;
521 case 54: ty = FGPositioned::FREQ_TOWER; break;
523 case 56: ty = FGPositioned::FREQ_APP_DEP; break;
525 throw sg_range_exception("unsupported apt.dat comm station type");
528 // Name can contain white spaces. All tokens after the second token are
530 std::string name = token[2];
531 for( size_t i = 3; i < token.size(); ++i )
532 name += ' ' + token[i];
534 cache->insertCommStation(ty, name, pos, freqKhz, rangeNm, currentAirportID);
536 else SG_LOG( SG_GENERAL, SG_DEBUG, "Found unnamed comm. Skipping: " << lineId);
541 // Load the airport data base from the specified aptdb file. The
542 // metar file is used to mark the airports as having metar available
544 bool airportDBLoad( const SGPath &aptdb_file )
547 ld.parseAPT(aptdb_file);
551 bool metarDataLoad(const SGPath& metar_file)
553 sg_gzifstream metar_in( metar_file.str() );
554 if ( !metar_in.is_open() ) {
555 SG_LOG( SG_GENERAL, SG_ALERT, "Cannot open file: " << metar_file );
559 NavDataCache* cache = NavDataCache::instance();
563 if ( ident == "#" || ident == "//" ) {
566 cache->setAirportMetar(ident, true);
573 } // of namespace flightgear