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>
53 #include "xmlloader.hxx"
56 SG_USING_STD(random_shuffle);
61 /***************************************************************************
63 ***************************************************************************/
64 FGAirport::FGAirport()
69 FGAirport::FGAirport(const string &id, const SGGeod& location, const SGGeod& tower_location, const string &name, bool has_metar)
73 _tower_location = tower_location;
75 _has_metar = has_metar;
80 FGAirport::~FGAirport()
86 FGAirportDynamics * FGAirport::getDynamics()
91 //cerr << "Trying to load dynamics for " << _id << endl;
92 dynamics = new FGAirportDynamics(this);
93 XMLLoader::load(dynamics);
95 FGRunwayPreference rwyPrefs(this);
96 XMLLoader::load(&rwyPrefs);
97 dynamics->setRwyUse(rwyPrefs);
106 /******************************************************************************
108 *****************************************************************************/
110 // Populates a list of subdirectories of $FG_ROOT/Airports/AI so that
111 // the add() method doesn't have to try opening 2 XML files in each of
112 // thousands of non-existent directories. FIXME: should probably add
113 // code to free this list after parsing of apt.dat is finished;
114 // non-issue at the moment, however, as there are no AI subdirectories
115 // in the base package.
117 // Note: 2005/12/23: This is probably not necessary anymore, because I'm
118 // Switching to runtime airport dynamics loading (DT).
119 FGAirportList::FGAirportList()
123 // SGPath aid( globals->get_fg_root() );
124 // aid.append( "/Airports/AI" );
125 // if((d = ulOpenDir(aid.c_str())) == NULL)
127 // while((dent = ulReadDir(d)) != NULL) {
128 // SG_LOG( SG_GENERAL, SG_DEBUG, "Dent: " << dent->d_name );
129 // ai_dirs.insert(dent->d_name);
135 FGAirportList::~FGAirportList( void )
137 for (unsigned int i = 0; i < airports_array.size(); ++i) {
138 delete airports_array[i];
143 // add an entry to the list
144 void FGAirportList::add( const string &id, const SGGeod& location, const SGGeod& tower_location,
145 const string &name, const bool has_metar )
147 FGAirport* a = new FGAirport(id, location, tower_location, name, has_metar);
149 airports_by_id[a->getId()] = a;
150 // try and read in an auxilary file
152 airports_array.push_back( a );
153 SG_LOG( SG_GENERAL, SG_BULK, "Adding " << id << " pos = " << location.getLongitudeDeg()
154 << ", " << location.getLatitudeDeg() << " elev = " << location.getElevationFt() );
158 // search for the specified id
159 FGAirport* FGAirportList::search( const string& id)
161 airport_map_iterator itr = airports_by_id.find(id);
162 return (itr == airports_by_id.end() ? NULL : itr->second);
166 // search for first subsequent alphabetically to supplied id
167 const FGAirport* FGAirportList::findFirstById( const string& id, bool exact )
169 airport_map_iterator itr;
171 itr = airports_by_id.find(id);
173 itr = airports_by_id.lower_bound(id);
175 if (itr == airports_by_id.end()) {
178 return (itr->second);
183 // search for the airport nearest the specified position
184 FGAirport* FGAirportList::search( double lon_deg, double lat_deg,
188 double min_dist = 360.0;
190 for ( i = 0; i < airports_array.size(); ++i ) {
191 // crude manhatten distance based on lat/lon difference
192 double d = fabs(lon_deg - airports_array[i]->getLongitude())
193 + fabs(lat_deg - airports_array[i]->getLatitude());
194 if ( d < min_dist ) {
195 if ( !with_metar || (with_metar&&airports_array[i]->getMetar()) ) {
202 return ( closest > -1 ? airports_array[closest] : NULL );
207 FGAirportList::size () const
209 return airports_array.size();
213 const FGAirport *FGAirportList::getAirport( unsigned int index ) const
215 if (index < airports_array.size()) {
216 return(airports_array[index]);
224 * Mark the specified airport record as not having metar
226 void FGAirportList::no_metar( const string &id )
228 if(airports_by_id.find(id) != airports_by_id.end()) {
229 airports_by_id[id]->setMetar(false);
235 * Mark the specified airport record as (yes) having metar
237 void FGAirportList::has_metar( const string &id )
239 if(airports_by_id.find(id) != airports_by_id.end()) {
240 airports_by_id[id]->setMetar(true);
245 // find basic airport location info from airport database
246 const FGAirport *fgFindAirportID( const string& id)
248 const FGAirport* result = NULL;
250 SG_LOG( SG_GENERAL, SG_BULK, "Searching for airport code = " << id );
252 result = globals->get_airports()->search( id );
254 if ( result == NULL ) {
255 SG_LOG( SG_GENERAL, SG_ALERT,
256 "Failed to find " << id << " in apt.dat.gz" );
262 SG_LOG( SG_GENERAL, SG_BULK,
263 "Position for " << id << " is ("
264 << result->getLongitude() << ", "
265 << result->getLatitude() << ")" );
271 // get airport elevation
272 double fgGetAirportElev( const string& id )
274 SG_LOG( SG_GENERAL, SG_BULK,
275 "Finding elevation for airport: " << id );
277 const FGAirport *a=fgFindAirportID( id);
279 return a->getElevation();
286 // get airport position
287 Point3D fgGetAirportPos( const string& id )
289 SG_LOG( SG_ATC, SG_BULK,
290 "Finding position for airport: " << id );
292 const FGAirport *a = fgFindAirportID( id);
295 return Point3D(a->getLongitude(), a->getLatitude(), a->getElevation());
297 return Point3D(0.0, 0.0, -9999.0);