X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FAirports%2Fsimple.cxx;h=1b7d1c9d0b5fb517aaa8cf02642a1f4ea1ef48c8;hb=6593d6c06569fff3b4a02372aa4342c83d32f5ae;hp=04a528f956cf27454f0b25d3cd8370bf3c01b0b2;hpb=4606f96e139204d5b2d76ee93c3b0c66885b5f5f;p=flightgear.git diff --git a/src/Airports/simple.cxx b/src/Airports/simple.cxx index 04a528f95..1b7d1c9d0 100644 --- a/src/Airports/simple.cxx +++ b/src/Airports/simple.cxx @@ -1,11 +1,12 @@ // // simple.cxx -- a really simplistic class to manage airport ID, -// lat, lon of the center of one of it's runways, and +// lat, lon of the center of one of it's runways, and // elevation in feet. // // Written by Curtis Olson, started April 1998. +// Updated by Durk Talsma, started December, 2004. // -// Copyright (C) 1998 Curtis L. Olson - curt@me.umn.edu +// Copyright (C) 1998 Curtis L. Olson - http://www.flightgear.org/~curt // // This program is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License as @@ -19,7 +20,7 @@ // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software -// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. // // $Id$ @@ -27,109 +28,403 @@ # include #endif -#include +#include "simple.hxx" +#include +#include +#include #include -#include +#include -#include STL_STRING -#include STL_IOSTREAM +#include +#include +#include
+#include +#include +#include +#include -#include "simple.hxx" +// magic import of a helper which uses FGPositioned internals +extern char** searchAirportNamesAndIdents(const std::string& aFilter); + +/*************************************************************************** + * FGAirport + ***************************************************************************/ + +FGAirport::FGAirport(const string &id, const SGGeod& location, const SGGeod& tower_location, + const string &name, bool has_metar, Type aType) : + FGPositioned(aType, id, location), + _tower_location(tower_location), + _name(name), + _has_metar(has_metar), + _dynamics(0), + mRunwaysLoaded(false), + mTaxiwaysLoaded(true) +{ +} + + +FGAirport::~FGAirport() +{ + delete _dynamics; +} + +bool FGAirport::isAirport() const +{ + return type() == AIRPORT; +} -SG_USING_NAMESPACE(std); -SG_USING_STD(istream); +bool FGAirport::isSeaport() const +{ + return type() == SEAPORT; +} +bool FGAirport::isHeliport() const +{ + return type() == HELIPORT; +} -inline istream& -operator >> ( istream& in, FGAirport& a ) +FGAirportDynamics * FGAirport::getDynamics() { - string junk; - in >> junk >> a.id >> a.latitude >> a.longitude >> a.elevation - >> a.code; + if (_dynamics != 0) { + return _dynamics; + } else { + //cerr << "Trying to load dynamics for " << _id << endl; + _dynamics = new FGAirportDynamics(this); + XMLLoader::load(_dynamics); - char name[256]; // should never be longer than this, right? :-) - in.getline( name, 256 ); - a.name = name; + FGRunwayPreference rwyPrefs(this); + XMLLoader::load(&rwyPrefs); + _dynamics->setRwyUse(rwyPrefs); - a.has_metar = true; // assume true + //FGSidStar SIDs(this); + XMLLoader::load(_dynamics->getSIDs()); + } + return _dynamics; +} - return in; +unsigned int FGAirport::numRunways() const +{ + loadRunways(); + return mRunways.size(); } +FGRunway* FGAirport::getRunwayByIndex(unsigned int aIndex) const +{ + loadRunways(); + + assert(aIndex >= 0 && aIndex < mRunways.size()); + return mRunways[aIndex]; +} -FGAirportList::FGAirportList( const string& file ) { - SG_LOG( SG_GENERAL, SG_DEBUG, "Reading simple airport list: " << file ); +bool FGAirport::hasRunwayWithIdent(const string& aIdent) const +{ + return (getIteratorForRunwayIdent(aIdent) != mRunways.end()); +} - // open the specified file for reading - sg_gzifstream in( file ); - if ( !in.is_open() ) { - SG_LOG( SG_GENERAL, SG_ALERT, "Cannot open file: " << file ); - exit(-1); +FGRunway* FGAirport::getRunwayByIdent(const string& aIdent) const +{ + Runway_iterator it = getIteratorForRunwayIdent(aIdent); + if (it == mRunways.end()) { + SG_LOG(SG_GENERAL, SG_ALERT, "no such runway '" << aIdent << "' at airport " << ident()); + throw sg_range_exception("unknown runway " + aIdent + " at airport:" + ident(), "FGAirport::getRunwayByIdent"); + } + + return *it; +} + +FGAirport::Runway_iterator +FGAirport::getIteratorForRunwayIdent(const string& aIdent) const +{ + loadRunways(); + + string ident(aIdent); + if ((aIdent.size() == 1) || !isdigit(aIdent[1])) { + ident = "0" + aIdent; + } + + Runway_iterator it = mRunways.begin(); + for (; it != mRunways.end(); ++it) { + if ((*it)->ident() == ident) { + return it; } + } - // skip header line - in >> skipeol; + return it; // end() +} - FGAirport a; - int size = 0; - while ( in ) { - in >> a; - airports_by_id[a.id] = a; - airports_array.push_back( &airports_by_id[a.id] ); - size++; +FGRunway* FGAirport::findBestRunwayForHeading(double aHeading) const +{ + loadRunways(); + + Runway_iterator it = mRunways.begin(); + FGRunway* result = NULL; + double currentBestQuality = 0.0; + + SGPropertyNode *param = fgGetNode("/sim/airport/runways/search", true); + double lengthWeight = param->getDoubleValue("length-weight", 0.01); + double widthWeight = param->getDoubleValue("width-weight", 0.01); + double surfaceWeight = param->getDoubleValue("surface-weight", 10); + double deviationWeight = param->getDoubleValue("deviation-weight", 1); + + for (; it != mRunways.end(); ++it) { + double good = (*it)->score(lengthWeight, widthWeight, surfaceWeight); + + double dev = aHeading - (*it)->headingDeg(); + SG_NORMALIZE_RANGE(dev, -180.0, 180.0); + double bad = fabs(deviationWeight * dev) + 1e-20; + double quality = good / bad; + + if (quality > currentBestQuality) { + currentBestQuality = quality; + result = *it; } + } + + return result; } +bool FGAirport::hasHardRunwayOfLengthFt(double aLengthFt) const +{ + loadRunways(); + + unsigned int numRunways(mRunways.size()); + for (unsigned int r=0; risReciprocal()) { + continue; // we only care about lengths, so don't do work twice + } -// search for the specified id -FGAirport FGAirportList::search( const string& id) { - - return airports_by_id[id]; -} - - -// search for the airport nearest the specified position -FGAirport FGAirportList::search( double lon_deg, double lat_deg, - bool with_metar ) { - int closest = 0; - double min_dist = 360.0; - unsigned int i; - for ( i = 0; i < airports_array.size(); ++i ) { - // crude manhatten distance based on lat/lon difference - double d = fabs(lon_deg - airports_array[i]->longitude) - + fabs(lat_deg - airports_array[i]->latitude); - if ( d < min_dist ) { - if ( !with_metar || (with_metar && airports_array[i]->has_metar) ) { - closest = i; - min_dist = d; - } - } + if (rwy->isHardSurface() && (rwy->lengthFt() >= aLengthFt)) { + return true; // we're done! + } + } // of runways iteration + + return false; +} + +unsigned int FGAirport::numTaxiways() const +{ + loadTaxiways(); + return mTaxiways.size(); +} + +FGTaxiway* FGAirport::getTaxiwayByIndex(unsigned int aIndex) const +{ + loadTaxiways(); + assert(aIndex >= 0 && aIndex < mTaxiways.size()); + return mTaxiways[aIndex]; +} + +unsigned int FGAirport::numPavements() const +{ + loadTaxiways(); + return mPavements.size(); +} + +FGPavement* FGAirport::getPavementByIndex(unsigned int aIndex) const +{ + loadTaxiways(); + assert(aIndex >= 0 && aIndex < mPavements.size()); + return mPavements[aIndex]; +} + +void FGAirport::setRunwaysAndTaxiways(vector& rwys, + vector& txwys, + vector& pvts) +{ + mRunways.swap(rwys); + Runway_iterator it = mRunways.begin(); + for (; it != mRunways.end(); ++it) { + (*it)->setAirport(this); + } + + mTaxiways.swap(txwys); + mPavements.swap(pvts); +} + +FGRunway* FGAirport::getActiveRunwayForUsage() const +{ + static FGEnvironmentMgr* envMgr = NULL; + if (!envMgr) { + envMgr = (FGEnvironmentMgr *) globals->get_subsystem("environment"); + } + + FGEnvironment stationWeather(envMgr->getEnvironment(mPosition)); + + double windSpeed = stationWeather.get_wind_speed_kt(); + double hdg = stationWeather.get_wind_from_heading_deg(); + if (windSpeed <= 0.0) { + hdg = 270; // This forces West-facing rwys to be used in no-wind situations + // which is consistent with Flightgear's initial setup. + } + + return findBestRunwayForHeading(hdg); +} + +FGAirport* FGAirport::findClosest(const SGGeod& aPos, double aCuttofNm, Filter* filter) +{ + AirportFilter aptFilter; + if (filter == NULL) { + filter = &aptFilter; + } + + FGPositionedRef r = FGPositioned::findClosest(aPos, aCuttofNm, filter); + if (!r) { + return NULL; + } + + return static_cast(r.ptr()); +} + +FGAirport::HardSurfaceFilter::HardSurfaceFilter(double minLengthFt) : + mMinLengthFt(minLengthFt) +{ +} + +bool FGAirport::HardSurfaceFilter::passAirport(FGAirport* aApt) const +{ + return aApt->hasHardRunwayOfLengthFt(mMinLengthFt); +} + +FGAirport* FGAirport::findByIdent(const std::string& aIdent) +{ + FGPositionedRef r; + PortsFilter filter; + r = FGPositioned::findNextWithPartialId(r, aIdent, &filter); + if (!r) { + return NULL; // we don't warn here, let the caller do that + } + return static_cast(r.ptr()); +} + +FGAirport* FGAirport::getByIdent(const std::string& aIdent) +{ + FGPositionedRef r; + PortsFilter filter; + r = FGPositioned::findNextWithPartialId(r, aIdent, &filter); + if (!r) { + throw sg_range_exception("No such airport with ident: " + aIdent); + } + return static_cast(r.ptr()); +} + +char** FGAirport::searchNamesAndIdents(const std::string& aFilter) +{ + // we delegate all the work to a horrible helper in FGPositioned, which can + // access the (private) index data. + return searchAirportNamesAndIdents(aFilter); +} + +// find basic airport location info from airport database +const FGAirport *fgFindAirportID( const string& id) +{ + if ( id.empty() ) { + return NULL; } + + return FGAirport::findByIdent(id); +} - return *airports_array[closest]; +void FGAirport::loadRunways() const +{ + if (mRunwaysLoaded) { + return; // already loaded, great + } + + mRunwaysLoaded = true; + loadSceneryDefintions(); } +void FGAirport::loadTaxiways() const +{ + if (mTaxiwaysLoaded) { + return; // already loaded, great + } +} -// Destructor -FGAirportList::~FGAirportList( void ) { +void FGAirport::loadSceneryDefintions() const +{ + // allow users to disable the scenery data in the short-term + // longer term, this option can probably disappear + if (!fgGetBool("/sim/use-scenery-airport-data")) { + return; + } + + SGPath path; + SGPropertyNode_ptr rootNode = new SGPropertyNode; + if (XMLLoader::findAirportData(ident(), "threshold", path)) { + readProperties(path.str(), rootNode); + const_cast(this)->readThresholdData(rootNode); + } + + // repeat for the tower data + rootNode = new SGPropertyNode; + if (XMLLoader::findAirportData(ident(), "twr", path)) { + readProperties(path.str(), rootNode); + const_cast(this)->readTowerData(rootNode); + } } -int -FGAirportList::size () const +void FGAirport::readThresholdData(SGPropertyNode* aRoot) { - return airports_array.size(); + SGPropertyNode* runway; + int runwayIndex = 0; + for (; (runway = aRoot->getChild("runway", runwayIndex)) != NULL; ++runwayIndex) { + SGPropertyNode* t0 = runway->getChild("threshold", 0), + *t1 = runway->getChild("threshold", 1); + assert(t0); + assert(t1); // too strict? mayeb we should finally allow single-ended runways + + processThreshold(t0); + processThreshold(t1); + } // of runways iteration } -const FGAirport FGAirportList::getAirport( int index ) const +void FGAirport::processThreshold(SGPropertyNode* aThreshold) { - return *airports_array[index]; + // first, let's identify the current runway + string id(aThreshold->getStringValue("rwy")); + if (!hasRunwayWithIdent(id)) { + SG_LOG(SG_GENERAL, SG_WARN, "FGAirport::processThreshold: " + "found runway not defined in the global data:" << ident() << "/" << id); + return; + } + + FGRunway* rwy = getRunwayByIdent(id); + rwy->processThreshold(aThreshold); } +void FGAirport::readTowerData(SGPropertyNode* aRoot) +{ + SGPropertyNode* twrNode = aRoot->getChild("tower")->getChild("twr"); + double lat = twrNode->getDoubleValue("lat"), + lon = twrNode->getDoubleValue("lon"), + elevM = twrNode->getDoubleValue("elev-m"); + + _tower_location = SGGeod::fromDegM(lon, lat, elevM); +} -/** - * Mark the specified airport record as not having metar - */ -void FGAirportList::no_metar( const string &id ) { - airports_by_id[id].has_metar = false; +// get airport elevation +double fgGetAirportElev( const string& id ) +{ + const FGAirport *a=fgFindAirportID( id); + if (a) { + return a->getElevation(); + } else { + return -9999.0; + } +} + + +// get airport position +SGGeod fgGetAirportPos( const string& id ) +{ + const FGAirport *a = fgFindAirportID( id); + + if (a) { + return SGGeod::fromDegM(a->getLongitude(), a->getLatitude(), a->getElevation()); + } else { + return SGGeod::fromDegM(0.0, 0.0, -9999.0); + } }