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., 675 Mass Ave, Cambridge, MA 02139, USA.
32 # define _USE_MATH_DEFINES
37 #include <simgear/compiler.h>
42 #include <Environment/environment_mgr.hxx>
43 #include <Environment/environment.hxx>
44 #include <simgear/misc/sg_path.hxx>
45 #include <simgear/props/props.hxx>
46 #include <simgear/structure/subsystem_mgr.hxx>
47 //#include <simgear/route/waypoint.hxx>
48 #include <simgear/debug/logstream.hxx>
49 #include <Main/globals.hxx>
50 #include <Main/fg_props.hxx>
51 #include <Airports/runways.hxx>
58 SG_USING_STD(random_shuffle);
65 /***************************************************************************
67 ***************************************************************************/
68 FGAirport::FGAirport() : _longitude(0), _latitude(0), _elevation(0)
74 FGAirport::FGAirport(const string &id, double lon, double lat, double elev, const string &name, bool has_metar)
81 _has_metar = has_metar;
85 FGAirport::~FGAirport()
91 FGAirportDynamics * FGAirport::getDynamics()
98 FGRunwayPreference rwyPrefs;
99 //cerr << "Trying to load dynamics for " << _id << endl;
100 dynamics = new FGAirportDynamics(_latitude, _longitude, _elevation, _id);
102 SGPath parkpath( globals->get_fg_root() );
103 parkpath.append( "/Airports/AI/" );
104 parkpath.append(_id);
105 parkpath.append("parking.xml");
107 SGPath rwyPrefPath( globals->get_fg_root() );
108 rwyPrefPath.append( "/Airports/AI/" );
109 rwyPrefPath.append(_id);
110 rwyPrefPath.append("rwyuse.xml");
111 //if (ai_dirs.find(id.c_str()) != ai_dirs.end()
112 // && parkpath.exists())
113 if (parkpath.exists())
116 readXML(parkpath.str(),*dynamics);
119 catch (const sg_exception &e) {
120 //cerr << "unable to read " << parkpath.str() << endl;
123 //if (ai_dirs.find(id.c_str()) != ai_dirs.end()
124 // && rwyPrefPath.exists())
125 if (rwyPrefPath.exists())
128 readXML(rwyPrefPath.str(), rwyPrefs);
129 dynamics->setRwyUse(rwyPrefs);
131 catch (const sg_exception &e) {
132 //cerr << "unable to read " << rwyPrefPath.str() << endl;
145 /******************************************************************************
147 *****************************************************************************/
149 // Populates a list of subdirectories of $FG_ROOT/Airports/AI so that
150 // the add() method doesn't have to try opening 2 XML files in each of
151 // thousands of non-existent directories. FIXME: should probably add
152 // code to free this list after parsing of apt.dat is finished;
153 // non-issue at the moment, however, as there are no AI subdirectories
154 // in the base package.
156 // Note: 2005/12/23: This is probably not necessary anymore, because I'm
157 // Switching to runtime airport dynamics loading (DT).
158 FGAirportList::FGAirportList()
162 // SGPath aid( globals->get_fg_root() );
163 // aid.append( "/Airports/AI" );
164 // if((d = ulOpenDir(aid.c_str())) == NULL)
166 // while((dent = ulReadDir(d)) != NULL) {
167 // SG_LOG( SG_GENERAL, SG_DEBUG, "Dent: " << dent->d_name );
168 // ai_dirs.insert(dent->d_name);
174 FGAirportList::~FGAirportList( void ) {
175 for(unsigned int i = 0; i < airports_array.size(); ++i) {
176 delete airports_array[i];
181 // add an entry to the list
182 void FGAirportList::add( const string &id, const double longitude,
183 const double latitude, const double elevation,
184 const string &name, const bool has_metar )
186 FGRunwayPreference rwyPrefs;
187 FGAirport* a = new FGAirport(id, longitude, latitude, elevation, name, has_metar);
190 airports_by_id[a->getId()] = a;
191 // try and read in an auxilary file
193 airports_array.push_back( a );
194 SG_LOG( SG_GENERAL, SG_BULK, "Adding " << id << " pos = " << longitude
195 << ", " << latitude << " elev = " << elevation );
199 // search for the specified id
200 FGAirport* FGAirportList::search( const string& id) {
201 airport_map_iterator itr = airports_by_id.find(id);
202 return(itr == airports_by_id.end() ? NULL : itr->second);
206 // search for first subsequent alphabetically to supplied id
207 const FGAirport* FGAirportList::findFirstById( const string& id, bool exact ) {
208 airport_map_iterator itr;
210 itr = airports_by_id.find(id);
212 itr = airports_by_id.lower_bound(id);
214 if(itr == airports_by_id.end()) {
222 // search for the airport nearest the specified position
223 FGAirport* FGAirportList::search( double lon_deg, double lat_deg,
226 double min_dist = 360.0;
228 for ( i = 0; i < airports_array.size(); ++i ) {
229 // crude manhatten distance based on lat/lon difference
230 double d = fabs(lon_deg - airports_array[i]->getLongitude())
231 + fabs(lat_deg - airports_array[i]->getLatitude());
232 if ( d < min_dist ) {
233 if ( !with_metar || (with_metar&&airports_array[i]->getMetar()) ) {
240 return ( closest > -1 ? airports_array[closest] : NULL );
245 FGAirportList::size () const
247 return airports_array.size();
250 const FGAirport *FGAirportList::getAirport( unsigned int index ) const
252 if(index < airports_array.size()) {
253 return(airports_array[index]);
261 * Mark the specified airport record as not having metar
263 void FGAirportList::no_metar( const string &id ) {
264 if(airports_by_id.find(id) != airports_by_id.end()) {
265 airports_by_id[id]->setMetar(false);
271 * Mark the specified airport record as (yes) having metar
273 void FGAirportList::has_metar( const string &id ) {
274 if(airports_by_id.find(id) != airports_by_id.end()) {
275 airports_by_id[id]->setMetar(true);
279 // find basic airport location info from airport database
280 const FGAirport *fgFindAirportID( const string& id) {
281 const FGAirport* result = NULL;
283 SG_LOG( SG_GENERAL, SG_INFO, "Searching for airport code = " << id );
285 result = globals->get_airports()->search( id );
287 if ( result == NULL ) {
288 SG_LOG( SG_GENERAL, SG_ALERT,
289 "Failed to find " << id << " in apt.dat.gz" );
295 SG_LOG( SG_GENERAL, SG_INFO,
296 "Position for " << id << " is ("
297 << result->getLongitude() << ", "
298 << result->getLatitude() << ")" );
304 // get airport elevation
305 double fgGetAirportElev( const string& id ) {
309 SG_LOG( SG_GENERAL, SG_INFO,
310 "Finding elevation for airport: " << id );
312 const FGAirport *a=fgFindAirportID( id);
314 return a->getElevation();
320 // get airport position
321 Point3D fgGetAirportPos( const string& id ) {
324 SG_LOG( SG_ATC, SG_INFO,
325 "Finding position for airport: " << id );
327 const FGAirport *a = fgFindAirportID( id);
330 return Point3D(a->getLongitude(), a->getLatitude(), a->getElevation());
332 return Point3D(0.0, 0.0, -9999.0);