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.
31 #include "airport.hxx"
35 #include <boost/foreach.hpp>
37 #include <simgear/misc/sg_path.hxx>
38 #include <simgear/props/props.hxx>
39 #include <simgear/props/props_io.hxx>
40 #include <simgear/debug/logstream.hxx>
41 #include <simgear/sg_inlines.h>
42 #include <simgear/structure/exception.hxx>
44 #include <Environment/environment_mgr.hxx>
45 #include <Environment/environment.hxx>
46 #include <Main/fg_props.hxx>
47 #include <Airports/runways.hxx>
48 #include <Airports/pavement.hxx>
49 #include <Airports/xmlloader.hxx>
50 #include <Airports/dynamics.hxx>
51 #include <Airports/airportdynamicsmanager.hxx>
52 #include <Navaids/procedure.hxx>
53 #include <Navaids/waypoint.hxx>
54 #include <ATC/CommStation.hxx>
55 #include <Navaids/NavDataCache.hxx>
56 #include <Navaids/navrecord.hxx>
57 #include <Airports/groundnetwork.hxx>
58 #include <Airports/xmlloader.hxx>
63 using namespace flightgear;
65 /***************************************************************************
67 ***************************************************************************/
69 AirportCache FGAirport::airportCache;
71 FGAirport::FGAirport( PositionedID aGuid,
72 const std::string &id,
73 const SGGeod& location,
74 const std::string &name,
77 FGPositioned(aGuid, aType, id, location),
79 _has_metar(has_metar),
80 mTowerDataLoaded(false),
82 mRunwaysLoaded(false),
83 mHelipadsLoaded(false),
84 mTaxiwaysLoaded(false),
85 mProceduresLoaded(false),
86 mThresholdDataLoaded(false),
89 mIsClosed = (name.find("[x]") != std::string::npos);
93 FGAirport::~FGAirport()
97 bool FGAirport::isAirport() const
99 return type() == AIRPORT;
102 bool FGAirport::isSeaport() const
104 return type() == SEAPORT;
107 bool FGAirport::isHeliport() const
109 return type() == HELIPORT;
112 bool FGAirport::isAirportType(FGPositioned* pos)
118 return (pos->type() >= AIRPORT) && (pos->type() <= SEAPORT);
121 //------------------------------------------------------------------------------
122 unsigned int FGAirport::numRunways() const
125 return mRunways.size();
128 //------------------------------------------------------------------------------
129 unsigned int FGAirport::numHelipads() const
132 return mHelipads.size();
135 //------------------------------------------------------------------------------
136 FGRunwayRef FGAirport::getRunwayByIndex(unsigned int aIndex) const
139 return mRunways.at(aIndex);
142 //------------------------------------------------------------------------------
143 FGHelipadRef FGAirport::getHelipadByIndex(unsigned int aIndex) const
146 return loadById<FGHelipad>(mHelipads, aIndex);
149 //------------------------------------------------------------------------------
150 FGRunwayMap FGAirport::getRunwayMap() const
155 double minLengthFt = fgGetDouble("/sim/navdb/min-runway-length-ft");
157 BOOST_FOREACH(FGRunwayRef rwy, mRunways)
159 // ignore unusably short runways
160 // TODO other methods don't check this...
161 if( rwy->lengthFt() >= minLengthFt )
162 map[ rwy->ident() ] = rwy;
168 //------------------------------------------------------------------------------
169 FGHelipadMap FGAirport::getHelipadMap() const
174 BOOST_FOREACH(PositionedID id, mHelipads)
176 FGHelipad* rwy = loadById<FGHelipad>(id);
177 map[ rwy->ident() ] = rwy;
183 //------------------------------------------------------------------------------
184 bool FGAirport::hasRunwayWithIdent(const std::string& aIdent) const
187 BOOST_FOREACH(FGRunwayRef rwy, mRunways) {
188 if (rwy->ident() == aIdent) {
196 //------------------------------------------------------------------------------
197 bool FGAirport::hasHelipadWithIdent(const std::string& aIdent) const
199 return flightgear::NavDataCache::instance()
200 ->airportItemWithIdent(guid(), FGPositioned::HELIPAD, aIdent) != 0;
203 //------------------------------------------------------------------------------
204 FGRunwayRef FGAirport::getRunwayByIdent(const std::string& aIdent) const
207 BOOST_FOREACH(FGRunwayRef rwy, mRunways) {
208 if (rwy->ident() == aIdent) {
213 SG_LOG(SG_GENERAL, SG_ALERT, "no such runway '" << aIdent << "' at airport " << ident());
214 throw sg_range_exception("unknown runway " + aIdent + " at airport:" + ident(), "FGAirport::getRunwayByIdent");
217 //------------------------------------------------------------------------------
218 FGHelipadRef FGAirport::getHelipadByIdent(const std::string& aIdent) const
220 PositionedID id = flightgear::NavDataCache::instance()->airportItemWithIdent(guid(), FGPositioned::HELIPAD, aIdent);
222 SG_LOG(SG_GENERAL, SG_ALERT, "no such helipad '" << aIdent << "' at airport " << ident());
223 throw sg_range_exception("unknown helipad " + aIdent + " at airport:" + ident(), "FGAirport::getRunwayByIdent");
226 return loadById<FGHelipad>(id);
229 //------------------------------------------------------------------------------
230 FGRunwayRef FGAirport::findBestRunwayForHeading(double aHeading, struct FindBestRunwayForHeadingParams * parms ) const
234 FGRunway* result = NULL;
235 double currentBestQuality = 0.0;
237 struct FindBestRunwayForHeadingParams fbrfhp;
238 if( NULL != parms ) fbrfhp = *parms;
240 SGPropertyNode_ptr searchNode = fgGetNode("/sim/airport/runways/search");
241 if( searchNode.valid() ) {
242 fbrfhp.lengthWeight = searchNode->getDoubleValue("length-weight", fbrfhp.lengthWeight );
243 fbrfhp.widthWeight = searchNode->getDoubleValue("width-weight", fbrfhp.widthWeight );
244 fbrfhp.surfaceWeight = searchNode->getDoubleValue("surface-weight", fbrfhp.surfaceWeight );
245 fbrfhp.deviationWeight = searchNode->getDoubleValue("deviation-weight", fbrfhp.deviationWeight );
246 fbrfhp.ilsWeight = searchNode->getDoubleValue("ils-weight", fbrfhp.ilsWeight );
249 BOOST_FOREACH(FGRunwayRef rwy, mRunways) {
250 double good = rwy->score( fbrfhp.lengthWeight, fbrfhp.widthWeight, fbrfhp.surfaceWeight, fbrfhp.ilsWeight );
251 double dev = aHeading - rwy->headingDeg();
252 SG_NORMALIZE_RANGE(dev, -180.0, 180.0);
253 double bad = fabs( fbrfhp.deviationWeight * dev) + 1e-20;
254 double quality = good / bad;
256 if (quality > currentBestQuality) {
257 currentBestQuality = quality;
265 //------------------------------------------------------------------------------
266 FGRunwayRef FGAirport::findBestRunwayForPos(const SGGeod& aPos) const
270 FGRunway* result = NULL;
271 double currentLowestDev = 180.0;
273 BOOST_FOREACH(FGRunwayRef rwy, mRunways) {
274 double inboundCourse = SGGeodesy::courseDeg(aPos, rwy->end());
275 double dev = inboundCourse - rwy->headingDeg();
276 SG_NORMALIZE_RANGE(dev, -180.0, 180.0);
279 if (dev < currentLowestDev) { // new best match
280 currentLowestDev = dev;
283 } // of runway iteration
289 //------------------------------------------------------------------------------
290 bool FGAirport::hasHardRunwayOfLengthFt(double aLengthFt) const
294 BOOST_FOREACH(FGRunwayRef rwy, mRunways) {
295 if (rwy->isHardSurface() && (rwy->lengthFt() >= aLengthFt)) {
296 return true; // we're done!
298 } // of runways iteration
303 FGRunwayRef FGAirport::longestRunway() const
308 BOOST_FOREACH(FGRunwayRef rwy, mRunways) {
309 if (!r || (r->lengthFt() < rwy->lengthFt())) {
312 } // of runways iteration
317 //------------------------------------------------------------------------------
318 FGRunwayList FGAirport::getRunways() const
325 //------------------------------------------------------------------------------
326 FGRunwayList FGAirport::getRunwaysWithoutReciprocals() const
332 BOOST_FOREACH(FGRunwayRef rwy, mRunways) {
333 FGRunway* recip = rwy->reciprocalRunway();
335 FGRunwayList::iterator it = std::find(r.begin(), r.end(), recip);
337 continue; // reciprocal already in result set, don't include us
347 //------------------------------------------------------------------------------
348 unsigned int FGAirport::numTaxiways() const
351 return mTaxiways.size();
354 //------------------------------------------------------------------------------
355 FGTaxiwayRef FGAirport::getTaxiwayByIndex(unsigned int aIndex) const
358 return loadById<FGTaxiway>(mTaxiways, aIndex);
361 //------------------------------------------------------------------------------
362 FGTaxiwayList FGAirport::getTaxiways() const
365 return loadAllById<FGTaxiway>(mTaxiways);
368 //------------------------------------------------------------------------------
369 unsigned int FGAirport::numPavements() const
372 return mPavements.size();
375 //------------------------------------------------------------------------------
376 FGPavementRef FGAirport::getPavementByIndex(unsigned int aIndex) const
379 return loadById<FGPavement>(mPavements, aIndex);
382 //------------------------------------------------------------------------------
383 FGPavementList FGAirport::getPavements() const
386 return loadAllById<FGPavement>(mPavements);
389 //------------------------------------------------------------------------------
390 FGRunwayRef FGAirport::getActiveRunwayForUsage() const
392 FGEnvironmentMgr* envMgr = (FGEnvironmentMgr *) globals->get_subsystem("environment");
394 // This forces West-facing rwys to be used in no-wind situations
395 // which is consistent with Flightgear's initial setup.
399 FGEnvironment stationWeather(envMgr->getEnvironment(geod()));
401 double windSpeed = stationWeather.get_wind_speed_kt();
402 if (windSpeed > 0.0) {
403 hdg = stationWeather.get_wind_from_heading_deg();
407 return findBestRunwayForHeading(hdg);
410 //------------------------------------------------------------------------------
411 FGAirportRef FGAirport::findClosest( const SGGeod& aPos,
415 AirportFilter aptFilter;
419 return static_pointer_cast<FGAirport>
421 FGPositioned::findClosest(aPos, aCuttofNm, filter)
425 FGAirport::HardSurfaceFilter::HardSurfaceFilter(double minLengthFt) :
426 mMinLengthFt(minLengthFt)
428 if (minLengthFt < 0.0) {
429 mMinLengthFt = fgGetDouble("/sim/navdb/min-runway-length-ft", 0.0);
433 bool FGAirport::HardSurfaceFilter::passAirport(FGAirport* aApt) const
435 return aApt->hasHardRunwayOfLengthFt(mMinLengthFt);
438 //------------------------------------------------------------------------------
439 FGAirport::TypeRunwayFilter::TypeRunwayFilter():
440 _type(FGPositioned::AIRPORT),
441 _min_runway_length_ft( fgGetDouble("/sim/navdb/min-runway-length-ft", 0.0) )
446 //------------------------------------------------------------------------------
447 bool FGAirport::TypeRunwayFilter::fromTypeString(const std::string& type)
449 if( type == "heliport" ) _type = FGPositioned::HELIPORT;
450 else if( type == "seaport" ) _type = FGPositioned::SEAPORT;
451 else if( type == "airport" ) _type = FGPositioned::AIRPORT;
457 //------------------------------------------------------------------------------
458 bool FGAirport::TypeRunwayFilter::pass(FGPositioned* pos) const
460 FGAirport* apt = static_cast<FGAirport*>(pos);
461 if( (apt->type() == FGPositioned::AIRPORT)
462 && !apt->hasHardRunwayOfLengthFt(_min_runway_length_ft)
469 //------------------------------------------------------------------------------
470 FGAirportRef FGAirport::findByIdent(const std::string& aIdent)
472 AirportCache::iterator it = airportCache.find(aIdent);
473 if (it != airportCache.end())
477 FGAirportRef r = static_pointer_cast<FGAirport>
479 FGPositioned::findFirstWithIdent(aIdent, &filter)
482 // add airport to the cache (even when it's NULL, so we don't need to search in vain again)
483 airportCache[aIdent] = r;
485 // we don't warn here when r==NULL, let the caller do that
489 //------------------------------------------------------------------------------
490 FGAirportRef FGAirport::getByIdent(const std::string& aIdent)
492 FGAirportRef r = findByIdent(aIdent);
494 throw sg_range_exception("No such airport with ident: " + aIdent);
498 char** FGAirport::searchNamesAndIdents(const std::string& aFilter)
500 return NavDataCache::instance()->searchAirportNamesAndIdents(aFilter);
503 // find basic airport location info from airport database
504 const FGAirport *fgFindAirportID( const std::string& id)
510 return FGAirport::findByIdent(id);
513 PositionedIDVec FGAirport::itemsOfType(FGPositioned::Type ty) const
515 flightgear::NavDataCache* cache = flightgear::NavDataCache::instance();
516 return cache->airportItemsOfType(guid(), ty);
519 void FGAirport::loadRunways() const
521 if (mRunwaysLoaded) {
522 return; // already loaded, great
525 loadSceneryDefinitions();
527 mRunwaysLoaded = true;
528 PositionedIDVec rwys(itemsOfType(FGPositioned::RUNWAY));
529 BOOST_FOREACH(PositionedID id, rwys) {
530 mRunways.push_back(loadById<FGRunway>(id));
534 void FGAirport::loadHelipads() const
536 if (mHelipadsLoaded) {
537 return; // already loaded, great
540 mHelipadsLoaded = true;
541 mHelipads = itemsOfType(FGPositioned::HELIPAD);
544 void FGAirport::loadTaxiways() const
546 if (mTaxiwaysLoaded) {
547 return; // already loaded, great
550 mTaxiwaysLoaded = true;
551 mTaxiways = itemsOfType(FGPositioned::TAXIWAY);
554 void FGAirport::loadProcedures() const
556 if (mProceduresLoaded) {
560 mProceduresLoaded = true;
562 if (!XMLLoader::findAirportData(ident(), "procedures", path)) {
563 SG_LOG(SG_GENERAL, SG_INFO, "no procedures data available for " << ident());
567 SG_LOG(SG_GENERAL, SG_INFO, ident() << ": loading procedures from " << path.str());
568 RouteBase::loadAirportProcedures(path, const_cast<FGAirport*>(this));
571 void FGAirport::loadSceneryDefinitions() const
573 if (mThresholdDataLoaded) {
577 mThresholdDataLoaded = true;
580 if (!XMLLoader::findAirportData(ident(), "threshold", path)) {
581 return; // no XML threshold data
585 SGPropertyNode_ptr rootNode = new SGPropertyNode;
586 readProperties(path.str(), rootNode);
587 const_cast<FGAirport*>(this)->readThresholdData(rootNode);
588 } catch (sg_exception& e) {
589 SG_LOG(SG_NAVAID, SG_WARN, ident() << "loading threshold XML failed:" << e.getFormattedMessage());
593 void FGAirport::readThresholdData(SGPropertyNode* aRoot)
595 SGPropertyNode* runway;
597 for (; (runway = aRoot->getChild("runway", runwayIndex)) != NULL; ++runwayIndex) {
598 SGPropertyNode* t0 = runway->getChild("threshold", 0),
599 *t1 = runway->getChild("threshold", 1);
601 assert(t1); // too strict? maybe we should finally allow single-ended runways
603 processThreshold(t0);
604 processThreshold(t1);
605 } // of runways iteration
608 void FGAirport::processThreshold(SGPropertyNode* aThreshold)
610 // first, let's identify the current runway
611 std::string rwyIdent(aThreshold->getStringValue("rwy"));
612 NavDataCache* cache = NavDataCache::instance();
613 PositionedID id = cache->airportItemWithIdent(guid(), FGPositioned::RUNWAY, rwyIdent);
615 double lon = aThreshold->getDoubleValue("lon"),
616 lat = aThreshold->getDoubleValue("lat");
617 SGGeod newThreshold(SGGeod::fromDegM(lon, lat, elevationM()));
619 double newHeading = aThreshold->getDoubleValue("hdg-deg");
620 double newDisplacedThreshold = aThreshold->getDoubleValue("displ-m");
621 double newStopway = aThreshold->getDoubleValue("stopw-m");
624 SG_LOG(SG_GENERAL, SG_DEBUG, "FGAirport::processThreshold: "
625 "found runway not defined in the global data:" << ident() << "/" << rwyIdent);
626 // enable this code when threshold.xml contains sufficient data to
627 // fully specify a new runway, *and* we figure out how to assign runtime
628 // Positioned IDs and insert temporary items into the spatial map.
630 double newLength = 0.0, newWidth = 0.0;
632 FGRunway* rwy = new FGRunway(id, guid(), rwyIdent, newThreshold,
635 newDisplacedThreshold, newStopway,
637 // insert into the spatial map too
638 mRunways.push_back(rwy);
641 FGRunway* rwy = loadById<FGRunway>(id);
642 rwy->updateThreshold(newThreshold, newHeading,
643 newDisplacedThreshold, newStopway);
648 SGGeod FGAirport::getTowerLocation() const
651 return mTowerPosition;
654 void FGAirport::validateTowerData() const
656 if (mTowerDataLoaded) {
660 mTowerDataLoaded = true;
662 // first, load data from the cache (apt.dat)
663 NavDataCache* cache = NavDataCache::instance();
664 PositionedIDVec towers = cache->airportItemsOfType(guid(), FGPositioned::TOWER);
665 if (towers.empty()) {
667 mTowerPosition = geod(); // use airport position
669 // offset the tower position away from the runway centerline, if
670 // airport has a single runway. Offset by eight times the runway width,
671 // an entirely guessed figure.
672 int runwayCount = numRunways();
673 if ((runwayCount > 0) && (runwayCount <= 2)) {
674 FGRunway* runway = getRunwayByIndex(0);
675 double hdg = runway->headingDeg() + 90;
676 mTowerPosition = SGGeodesy::direct(geod(), hdg, runway->widthM() * 8);
679 // increase tower elevation by 20 metres above the field elevation
680 mTowerPosition.setElevationM(geod().getElevationM() + 20.0);
682 FGPositionedRef tower = cache->loadById(towers.front());
683 mTowerPosition = tower->geod();
688 if (!XMLLoader::findAirportData(ident(), "twr", path)) {
689 return; // no XML tower data, base position is fine
693 SGPropertyNode_ptr rootNode = new SGPropertyNode;
694 readProperties(path.str(), rootNode);
695 const_cast<FGAirport*>(this)->readTowerData(rootNode);
697 } catch (sg_exception& e){
698 SG_LOG(SG_NAVAID, SG_WARN, ident() << "loading twr XML failed:" << e.getFormattedMessage());
702 void FGAirport::readTowerData(SGPropertyNode* aRoot)
704 SGPropertyNode* twrNode = aRoot->getChild("tower")->getChild("twr");
705 double lat = twrNode->getDoubleValue("lat"),
706 lon = twrNode->getDoubleValue("lon"),
707 elevM = twrNode->getDoubleValue("elev-m");
708 // tower elevation is AGL, not AMSL. Since we don't want to depend on the
709 // scenery for a precise terrain elevation, we use the field elevation
710 // (this is also what the apt.dat code does)
711 double fieldElevationM = geod().getElevationM();
712 mTowerPosition = SGGeod::fromDegM(lon, lat, fieldElevationM + elevM);
715 void FGAirport::validateILSData()
717 if (mILSDataLoaded) {
721 // to avoid re-entrancy on this code-path, ensure we set loaded
723 mILSDataLoaded = true;
726 if (!XMLLoader::findAirportData(ident(), "ils", path)) {
727 return; // no XML tower data
731 SGPropertyNode_ptr rootNode = new SGPropertyNode;
732 readProperties(path.str(), rootNode);
733 readILSData(rootNode);
734 } catch (sg_exception& e){
735 SG_LOG(SG_NAVAID, SG_WARN, ident() << "loading ils XML failed:" << e.getFormattedMessage());
739 bool FGAirport::hasTower() const
745 void FGAirport::readILSData(SGPropertyNode* aRoot)
747 NavDataCache* cache = NavDataCache::instance();
748 // find the entry matching the runway
749 SGPropertyNode* runwayNode, *ilsNode;
750 for (int i=0; (runwayNode = aRoot->getChild("runway", i)) != NULL; ++i) {
751 for (int j=0; (ilsNode = runwayNode->getChild("ils", j)) != NULL; ++j) {
752 // must match on both nav-ident and runway ident, to support the following:
753 // - runways with multiple distinct ILS installations (KEWD, for example)
754 // - runways where both ends share the same nav ident (LFAT, for example)
755 PositionedID ils = cache->findILS(guid(), ilsNode->getStringValue("rwy"),
756 ilsNode->getStringValue("nav-id"));
758 SG_LOG(SG_GENERAL, SG_INFO, "reading ILS data for " << ident() <<
759 ", couldn't find runway/navaid for:" <<
760 ilsNode->getStringValue("rwy") << "/" <<
761 ilsNode->getStringValue("nav-id"));
765 double hdgDeg = ilsNode->getDoubleValue("hdg-deg"),
766 lon = ilsNode->getDoubleValue("lon"),
767 lat = ilsNode->getDoubleValue("lat"),
768 elevM = ilsNode->getDoubleValue("elev-m");
770 FGNavRecordRef nav(FGPositioned::loadById<FGNavRecord>(ils));
772 nav->updateFromXML(SGGeod::fromDegM(lon, lat, elevM), hdgDeg);
773 } // of ILS iteration
774 } // of runway iteration
777 void FGAirport::addSID(flightgear::SID* aSid)
779 mSIDs.push_back(aSid);
782 void FGAirport::addSTAR(STAR* aStar)
784 mSTARs.push_back(aStar);
787 void FGAirport::addApproach(Approach* aApp)
789 mApproaches.push_back(aApp);
792 //------------------------------------------------------------------------------
793 unsigned int FGAirport::numSIDs() const
799 //------------------------------------------------------------------------------
800 flightgear::SID* FGAirport::getSIDByIndex(unsigned int aIndex) const
803 return mSIDs[aIndex];
806 //------------------------------------------------------------------------------
807 flightgear::SID* FGAirport::findSIDWithIdent(const std::string& aIdent) const
810 for (unsigned int i=0; i<mSIDs.size(); ++i) {
811 if (mSIDs[i]->ident() == aIdent) {
819 //------------------------------------------------------------------------------
820 flightgear::SIDList FGAirport::getSIDs() const
823 return flightgear::SIDList(mSIDs.begin(), mSIDs.end());
826 //------------------------------------------------------------------------------
827 unsigned int FGAirport::numSTARs() const
830 return mSTARs.size();
833 //------------------------------------------------------------------------------
834 STAR* FGAirport::getSTARByIndex(unsigned int aIndex) const
837 return mSTARs[aIndex];
840 //------------------------------------------------------------------------------
841 STAR* FGAirport::findSTARWithIdent(const std::string& aIdent) const
844 for (unsigned int i=0; i<mSTARs.size(); ++i) {
845 if (mSTARs[i]->ident() == aIdent) {
853 //------------------------------------------------------------------------------
854 STARList FGAirport::getSTARs() const
857 return STARList(mSTARs.begin(), mSTARs.end());
860 unsigned int FGAirport::numApproaches() const
863 return mApproaches.size();
866 //------------------------------------------------------------------------------
867 Approach* FGAirport::getApproachByIndex(unsigned int aIndex) const
870 return mApproaches[aIndex];
873 //------------------------------------------------------------------------------
874 Approach* FGAirport::findApproachWithIdent(const std::string& aIdent) const
877 for (unsigned int i=0; i<mApproaches.size(); ++i) {
878 if (mApproaches[i]->ident() == aIdent) {
879 return mApproaches[i];
886 //------------------------------------------------------------------------------
887 ApproachList FGAirport::getApproaches(ProcedureType type) const
890 if( type == PROCEDURE_INVALID )
891 return ApproachList(mApproaches.begin(), mApproaches.end());
894 for(size_t i = 0; i < mApproaches.size(); ++i)
896 if( mApproaches[i]->type() == type )
897 ret.push_back(mApproaches[i]);
903 FGAirport::commStations() const
905 NavDataCache* cache = NavDataCache::instance();
906 CommStationList result;
907 BOOST_FOREACH(PositionedID pos, cache->airportItemsOfType(guid(),
908 FGPositioned::FREQ_GROUND,
909 FGPositioned::FREQ_UNICOM))
911 result.push_back( loadById<CommStation>(pos) );
918 FGAirport::commStationsOfType(FGPositioned::Type aTy) const
920 NavDataCache* cache = NavDataCache::instance();
921 CommStationList result;
922 BOOST_FOREACH(PositionedID pos, cache->airportItemsOfType(guid(), aTy)) {
923 result.push_back( loadById<CommStation>(pos) );
929 class AirportWithSize
932 AirportWithSize(FGPositionedRef pos) :
936 assert(pos->type() == FGPositioned::AIRPORT);
937 FGAirport* apt = static_cast<FGAirport*>(pos.get());
938 BOOST_FOREACH(FGRunway* rwy, apt->getRunwaysWithoutReciprocals()) {
939 _sizeMetric += static_cast<int>(rwy->lengthFt());
943 bool operator<(const AirportWithSize& other) const
945 return _sizeMetric < other._sizeMetric;
948 FGPositionedRef pos() const
951 FGPositionedRef _pos;
952 unsigned int _sizeMetric;
956 void FGAirport::sortBySize(FGPositionedList& airportList)
958 std::vector<AirportWithSize> annotated;
959 BOOST_FOREACH(FGPositionedRef p, airportList) {
960 annotated.push_back(AirportWithSize(p));
962 std::sort(annotated.begin(), annotated.end());
964 for (unsigned int i=0; i<annotated.size(); ++i) {
965 airportList[i] = annotated[i].pos();
969 FGAirportDynamicsRef FGAirport::getDynamics() const
971 return flightgear::AirportDynamicsManager::find(const_cast<FGAirport*>(this));
974 FGGroundNetwork *FGAirport::groundNetwork() const
976 if (!_groundNetwork.get()) {
977 _groundNetwork.reset(new FGGroundNetwork(const_cast<FGAirport*>(this)));
979 XMLLoader::load(_groundNetwork.get());
981 _groundNetwork->init();
984 return _groundNetwork.get();
987 // get airport elevation
988 double fgGetAirportElev( const std::string& id )
990 const FGAirport *a=fgFindAirportID( id);
992 return a->getElevation();
999 // get airport position
1000 SGGeod fgGetAirportPos( const std::string& id )
1002 const FGAirport *a = fgFindAirportID( id);
1005 return SGGeod::fromDegM(a->getLongitude(), a->getLatitude(), a->getElevation());
1007 return SGGeod::fromDegM(0.0, 0.0, -9999.0);