2 // simple.cxx -- a really simplistic class to manage airport ID,
3 // lat, lon of the center of one of it's runways, and
6 // Written by Curtis Olson, started April 1998.
7 // Updated by Durk Talsma, started December, 2004.
9 // Copyright (C) 1998 Curtis L. Olson - http://www.flightgear.org/~curt
11 // This program is free software; you can redistribute it and/or
12 // modify it under the terms of the GNU General Public License as
13 // published by the Free Software Foundation; either version 2 of the
14 // License, or (at your option) any later version.
16 // This program is distributed in the hope that it will be useful, but
17 // WITHOUT ANY WARRANTY; without even the implied warranty of
18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 // General Public License for more details.
21 // You should have received a copy of the GNU General Public License
22 // along with this program; if not, write to the Free Software
23 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
34 #include <simgear/compiler.h>
39 #include <Environment/environment_mgr.hxx>
40 #include <Environment/environment.hxx>
41 #include <simgear/misc/sg_path.hxx>
42 #include <simgear/props/props.hxx>
43 #include <simgear/structure/subsystem_mgr.hxx>
44 //#include <simgear/route/waypoint.hxx>
45 #include <simgear/debug/logstream.hxx>
46 #include <Main/globals.hxx>
47 #include <Main/fg_props.hxx>
48 #include <Airports/runways.hxx>
55 SG_USING_STD(random_shuffle);
62 /***************************************************************************
64 ***************************************************************************/
65 FGAirport::FGAirport() : _longitude(0), _latitude(0), _elevation(0)
71 FGAirport::FGAirport(const string &id, double lon, double lat, double elev, const string &name, bool has_metar)
78 _has_metar = has_metar;
82 FGAirport::~FGAirport()
88 FGAirportDynamics * FGAirport::getDynamics()
95 FGRunwayPreference rwyPrefs;
96 //cerr << "Trying to load dynamics for " << _id << endl;
97 dynamics = new FGAirportDynamics(_latitude, _longitude, _elevation, _id);
99 SGPath parkpath( globals->get_fg_root() );
100 parkpath.append( "/Airports/AI/" );
101 parkpath.append(_id);
102 parkpath.append("parking.xml");
104 SGPath rwyPrefPath( globals->get_fg_root() );
105 rwyPrefPath.append( "/Airports/AI/" );
106 rwyPrefPath.append(_id);
107 rwyPrefPath.append("rwyuse.xml");
108 //if (ai_dirs.find(id.c_str()) != ai_dirs.end()
109 // && parkpath.exists())
110 if (parkpath.exists())
113 readXML(parkpath.str(),*dynamics);
116 catch (const sg_exception &e) {
117 //cerr << "unable to read " << parkpath.str() << endl;
120 //if (ai_dirs.find(id.c_str()) != ai_dirs.end()
121 // && rwyPrefPath.exists())
122 if (rwyPrefPath.exists())
125 readXML(rwyPrefPath.str(), rwyPrefs);
126 dynamics->setRwyUse(rwyPrefs);
128 catch (const sg_exception &e) {
129 //cerr << "unable to read " << rwyPrefPath.str() << endl;
142 /******************************************************************************
144 *****************************************************************************/
146 // Populates a list of subdirectories of $FG_ROOT/Airports/AI so that
147 // the add() method doesn't have to try opening 2 XML files in each of
148 // thousands of non-existent directories. FIXME: should probably add
149 // code to free this list after parsing of apt.dat is finished;
150 // non-issue at the moment, however, as there are no AI subdirectories
151 // in the base package.
153 // Note: 2005/12/23: This is probably not necessary anymore, because I'm
154 // Switching to runtime airport dynamics loading (DT).
155 FGAirportList::FGAirportList()
159 // SGPath aid( globals->get_fg_root() );
160 // aid.append( "/Airports/AI" );
161 // if((d = ulOpenDir(aid.c_str())) == NULL)
163 // while((dent = ulReadDir(d)) != NULL) {
164 // SG_LOG( SG_GENERAL, SG_DEBUG, "Dent: " << dent->d_name );
165 // ai_dirs.insert(dent->d_name);
171 FGAirportList::~FGAirportList( void ) {
172 for(unsigned int i = 0; i < airports_array.size(); ++i) {
173 delete airports_array[i];
178 // add an entry to the list
179 void FGAirportList::add( const string &id, const double longitude,
180 const double latitude, const double elevation,
181 const string &name, const bool has_metar )
183 FGRunwayPreference rwyPrefs;
184 FGAirport* a = new FGAirport(id, longitude, latitude, elevation, name, has_metar);
187 airports_by_id[a->getId()] = a;
188 // try and read in an auxilary file
190 airports_array.push_back( a );
191 SG_LOG( SG_GENERAL, SG_BULK, "Adding " << id << " pos = " << longitude
192 << ", " << latitude << " elev = " << elevation );
196 // search for the specified id
197 FGAirport* FGAirportList::search( const string& id) {
198 airport_map_iterator itr = airports_by_id.find(id);
199 return(itr == airports_by_id.end() ? NULL : itr->second);
203 // search for first subsequent alphabetically to supplied id
204 const FGAirport* FGAirportList::findFirstById( const string& id, bool exact ) {
205 airport_map_iterator itr;
207 itr = airports_by_id.find(id);
209 itr = airports_by_id.lower_bound(id);
211 if(itr == airports_by_id.end()) {
219 // search for the airport nearest the specified position
220 FGAirport* FGAirportList::search( double lon_deg, double lat_deg,
223 double min_dist = 360.0;
225 for ( i = 0; i < airports_array.size(); ++i ) {
226 // crude manhatten distance based on lat/lon difference
227 double d = fabs(lon_deg - airports_array[i]->getLongitude())
228 + fabs(lat_deg - airports_array[i]->getLatitude());
229 if ( d < min_dist ) {
230 if ( !with_metar || (with_metar&&airports_array[i]->getMetar()) ) {
237 return ( closest > -1 ? airports_array[closest] : NULL );
242 FGAirportList::size () const
244 return airports_array.size();
247 const FGAirport *FGAirportList::getAirport( unsigned int index ) const
249 if(index < airports_array.size()) {
250 return(airports_array[index]);
258 * Mark the specified airport record as not having metar
260 void FGAirportList::no_metar( const string &id ) {
261 if(airports_by_id.find(id) != airports_by_id.end()) {
262 airports_by_id[id]->setMetar(false);
268 * Mark the specified airport record as (yes) having metar
270 void FGAirportList::has_metar( const string &id ) {
271 if(airports_by_id.find(id) != airports_by_id.end()) {
272 airports_by_id[id]->setMetar(true);
276 // find basic airport location info from airport database
277 const FGAirport *fgFindAirportID( const string& id) {
278 const FGAirport* result = NULL;
280 SG_LOG( SG_GENERAL, SG_BULK, "Searching for airport code = " << id );
282 result = globals->get_airports()->search( id );
284 if ( result == NULL ) {
285 SG_LOG( SG_GENERAL, SG_ALERT,
286 "Failed to find " << id << " in apt.dat.gz" );
292 SG_LOG( SG_GENERAL, SG_BULK,
293 "Position for " << id << " is ("
294 << result->getLongitude() << ", "
295 << result->getLatitude() << ")" );
301 // get airport elevation
302 double fgGetAirportElev( const string& id ) {
306 SG_LOG( SG_GENERAL, SG_BULK,
307 "Finding elevation for airport: " << id );
309 const FGAirport *a=fgFindAirportID( id);
311 return a->getElevation();
317 // get airport position
318 Point3D fgGetAirportPos( const string& id ) {
321 SG_LOG( SG_ATC, SG_BULK,
322 "Finding position for airport: " << id );
324 const FGAirport *a = fgFindAirportID( id);
327 return Point3D(a->getLongitude(), a->getLatitude(), a->getElevation());
329 return Point3D(0.0, 0.0, -9999.0);