X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FAirports%2Fsimple.cxx;h=e7b9a48d88344448732bfdc53c8e55b932ab1f0d;hb=82bfb6a08de380a445b7a7b2f27409731d30bd8b;hp=1e5d9a6940f87eb6b76e4acf03e6c02c9414b7e4;hpb=14a8533f636b7d4ad5d95cff30e4d46b42eb57ca;p=flightgear.git diff --git a/src/Airports/simple.cxx b/src/Airports/simple.cxx index 1e5d9a694..e7b9a48d8 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 -// elevation in feet. +// 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 @@ -19,92 +20,389 @@ // // 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. // // $Id$ +#ifdef HAVE_CONFIG_H +# include +#endif -#include +#include +#include -#include -#include -#include
+#include -#include STL_STRING -#include STL_FUNCTIONAL -#include STL_ALGORITHM +#include +#include +#include +#include +#include +#include +#include
+#include
+#include +#include + +#include #include "simple.hxx" +#include "xmlloader.hxx" + +using std::sort; +using std::random_shuffle; + + + + +/*************************************************************************** + * 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) +{ +} + + +FGAirport::~FGAirport() +{ + delete _dynamics; +} +bool FGAirport::isAirport() const +{ + return type() == AIRPORT; +} + +bool FGAirport::isSeaport() const +{ + return type() == SEAPORT; +} + +bool FGAirport::isHeliport() const +{ + return type() == HELIPORT; +} + +FGAirportDynamics * FGAirport::getDynamics() +{ + if (_dynamics != 0) { + return _dynamics; + } else { + //cerr << "Trying to load dynamics for " << _id << endl; + _dynamics = new FGAirportDynamics(this); + XMLLoader::load(_dynamics); + + FGRunwayPreference rwyPrefs(this); + XMLLoader::load(&rwyPrefs); + _dynamics->setRwyUse(rwyPrefs); + } + return _dynamics; +} -fgAIRPORTS::fgAIRPORTS() { +unsigned int FGAirport::numRunways() const +{ + return mRunways.size(); } +FGRunway* FGAirport::getRunwayByIndex(unsigned int aIndex) const +{ + assert(aIndex >= 0 && aIndex < mRunways.size()); + return mRunways[aIndex]; +} -// load the data -int fgAIRPORTS::load( const string& file ) { - fgAIRPORT a; +bool FGAirport::hasRunwayWithIdent(const string& aIdent) const +{ + return (getIteratorForRunwayIdent(aIdent) != mRunways.end()); +} - // build the path name to the airport file - string path = current_options.get_fg_root() + "/Airports/" + file; +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; +} - airports.erase( airports.begin(), airports.end() ); +FGAirport::Runway_iterator +FGAirport::getIteratorForRunwayIdent(const string& aIdent) const +{ + string ident(aIdent); + if ((aIdent.size() == 1) || !isdigit(aIdent[1])) { + ident = "0" + aIdent; + } - fg_gzifstream in( path ); - if ( !in ) { - FG_LOG( FG_GENERAL, FG_ALERT, "Cannot open file: " << path ); - exit(-1); + Runway_iterator it = mRunways.begin(); + for (; it != mRunways.end(); ++it) { + if ((*it)->ident() == ident) { + return it; } + } + + return it; // end() +} + +static double normaliseBearing(double aBearing) +{ + while (aBearing < -180) { + aBearing += 360.0; + } + + while (aBearing > 180.0) { + aBearing -= 360.0; + } + + return aBearing; +} - /* - // We can use the STL copy algorithm because the input - // file doesn't contain and comments or blank lines. - copy( istream_iterator(in.stream()), - istream_iterator(), - inserter( airports, airports.begin() ) ); - */ - - // read in each line of the file - in >> skipcomment; - while ( ! in.eof() ) - { - in >> a; - airports.insert(a); - in >> skipcomment; +FGRunway* FGAirport::findBestRunwayForHeading(double aHeading) const +{ + 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 = normaliseBearing(aHeading - (*it)->headingDeg()); + double bad = fabs(deviationWeight * dev) + 1e-20; + double quality = good / bad; + + if (quality > currentBestQuality) { + currentBestQuality = quality; + result = *it; } + } - return 1; + return result; } +bool FGAirport::hasHardRunwayOfLengthFt(double aLengthFt) const +{ + 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 -bool -fgAIRPORTS::search( const string& id, fgAIRPORT* a ) const -{ - const_iterator it = airports.find( fgAIRPORT(id) ); - if ( it != airports.end() ) - { - *a = *it; - return true; + if (rwy->isHardSurface() && (rwy->lengthFt() >= aLengthFt)) { + return true; // we're done! } - else - { - return false; + } // of runways iteration + + return false; +} + +unsigned int FGAirport::numTaxiways() const +{ + return mTaxiways.size(); +} + +FGRunway* FGAirport::getTaxiwayByIndex(unsigned int aIndex) const +{ + assert(aIndex >= 0 && aIndex < mTaxiways.size()); + return mTaxiways[aIndex]; +} + +void FGAirport::addRunway(FGRunway* aRunway) +{ + aRunway->setAirport(this); + + if (aRunway->isTaxiway()) { + mTaxiways.push_back(aRunway); + } else { + mRunways.push_back(aRunway); + } +} + +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::pass(FGPositioned* aPos) const +{ + if (aPos->type() != AIRPORT) { + return false; // exclude seaports and heliports as well, we need a runways + } + + return static_cast(aPos)->hasHardRunwayOfLengthFt(mMinLengthFt); +} + +/****************************************************************************** + * FGAirportList + *****************************************************************************/ + +// Populates a list of subdirectories of $FG_ROOT/Airports/AI so that +// the add() method doesn't have to try opening 2 XML files in each of +// thousands of non-existent directories. FIXME: should probably add +// code to free this list after parsing of apt.dat is finished; +// non-issue at the moment, however, as there are no AI subdirectories +// in the base package. +// +// Note: 2005/12/23: This is probably not necessary anymore, because I'm +// Switching to runtime airport dynamics loading (DT). +FGAirportList::FGAirportList() +{ +// ulDir* d; +// ulDirEnt* dent; +// SGPath aid( globals->get_fg_root() ); +// aid.append( "/Airports/AI" ); +// if((d = ulOpenDir(aid.c_str())) == NULL) +// return; +// while((dent = ulReadDir(d)) != NULL) { +// SG_LOG( SG_GENERAL, SG_DEBUG, "Dent: " << dent->d_name ); +// ai_dirs.insert(dent->d_name); +// } +// ulCloseDir(d); +} + + +FGAirportList::~FGAirportList( void ) +{ + for (unsigned int i = 0; i < airports_array.size(); ++i) { + delete airports_array[i]; } } -fgAIRPORT -fgAIRPORTS::search( const string& id ) const +// add an entry to the list +FGAirport* FGAirportList::add( const string &id, const SGGeod& location, const SGGeod& tower_location, + const string &name, bool has_metar, FGPositioned::Type aType) { - fgAIRPORT a; - this->search( id, &a ); + FGAirport* a = new FGAirport(id, location, tower_location, name, has_metar, aType); + airports_by_id[a->getId()] = a; + // try and read in an auxilary file + + airports_array.push_back( a ); return a; } +// search for the specified id +FGAirport* FGAirportList::search( const string& id) +{ + airport_map_iterator itr = airports_by_id.find(id); + return (itr == airports_by_id.end() ? NULL : itr->second); +} + +int +FGAirportList::size () const +{ + return airports_array.size(); +} -// Destructor -fgAIRPORTS::~fgAIRPORTS( void ) { + +const FGAirport *FGAirportList::getAirport( unsigned int index ) const +{ + if (index < airports_array.size()) { + return(airports_array[index]); + } else { + return(NULL); + } } +// find basic airport location info from airport database +const FGAirport *fgFindAirportID( const string& id) +{ + const FGAirport* result = NULL; + if ( id.length() ) { + SG_LOG( SG_GENERAL, SG_BULK, "Searching for airport code = " << id ); + + result = globals->get_airports()->search( id ); + + if ( result == NULL ) { + SG_LOG( SG_GENERAL, SG_ALERT, + "Failed to find " << id << " in apt.dat.gz" ); + return NULL; + } + } else { + return NULL; + } + SG_LOG( SG_GENERAL, SG_BULK, + "Position for " << id << " is (" + << result->getLongitude() << ", " + << result->getLatitude() << ")" ); + + return result; +} + +// get airport elevation +double fgGetAirportElev( const string& id ) +{ + SG_LOG( SG_GENERAL, SG_BULK, + "Finding elevation for airport: " << id ); + + const FGAirport *a=fgFindAirportID( id); + if (a) { + return a->getElevation(); + } else { + return -9999.0; + } +} + + +// get airport position +Point3D fgGetAirportPos( const string& id ) +{ + SG_LOG( SG_ATC, SG_BULK, + "Finding position for airport: " << id ); + + const FGAirport *a = fgFindAirportID( id); + + if (a) { + return Point3D(a->getLongitude(), a->getLatitude(), a->getElevation()); + } else { + return Point3D(0.0, 0.0, -9999.0); + } +}