//
// 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 - http://www.flightgear.org/~curt
//
//
// 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.
//
// $Id$
# include <config.h>
#endif
-#include <math.h>
-
-#include <simgear/compiler.h>
+#include "simple.hxx"
+#include <simgear/misc/sg_path.hxx>
+#include <simgear/props/props.hxx>
#include <simgear/debug/logstream.hxx>
+#include <simgear/sg_inlines.h>
-#include STL_STRING
+#include <Environment/environment_mgr.hxx>
+#include <Environment/environment.hxx>
+#include <Main/fg_props.hxx>
+#include <Airports/runways.hxx>
+#include <Airports/dynamics.hxx>
+#include <Airports/xmlloader.hxx>
-#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)
+{
+}
+
+
+FGAirport::~FGAirport()
+{
+ delete _dynamics;
+}
-SG_USING_NAMESPACE(std);
-
-
-// add an entry to the list
-void FGAirportList::add( const string id, const double longitude,
- const double latitude, const double elevation,
- const string name, const bool has_metar )
-{
- FGAirport a;
- a._id = id;
- a._longitude = longitude;
- a._latitude = latitude;
- a._elevation = elevation;
- a._name = name;
- a._has_metar = has_metar;
- airports_by_id[a._id] = a;
- airports_array.push_back( &airports_by_id[a._id] );
- SG_LOG( SG_GENERAL, SG_BULK, "Adding " << id << " pos = " << longitude
- << ", " << latitude << " elev = " << elevation );
-}
-
-
-// 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;
- }
- }
+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;
+}
+
+unsigned int FGAirport::numRunways() const
+{
+ return mRunways.size();
+}
+
+FGRunway* FGAirport::getRunwayByIndex(unsigned int aIndex) const
+{
+ assert(aIndex >= 0 && aIndex < mRunways.size());
+ return mRunways[aIndex];
+}
+
+bool FGAirport::hasRunwayWithIdent(const string& aIdent) const
+{
+ return (getIteratorForRunwayIdent(aIdent) != mRunways.end());
+}
+
+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
+{
+ 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;
}
+ }
- return *airports_array[closest];
+ return it; // end()
}
+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 = 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;
+ }
+ }
-// Destructor
-FGAirportList::~FGAirportList( void ) {
+ return result;
}
-int
-FGAirportList::size () const
+bool FGAirport::hasHardRunwayOfLengthFt(double aLengthFt) const
{
- return airports_array.size();
+ unsigned int numRunways(mRunways.size());
+ for (unsigned int r=0; r<numRunways; ++r) {
+ FGRunway* rwy = mRunways[r];
+ if (rwy->isReciprocal()) {
+ continue; // we only care about lengths, so don't do work twice
+ }
+
+ if (rwy->isHardSurface() && (rwy->lengthFt() >= aLengthFt)) {
+ return true; // we're done!
+ }
+ } // of runways iteration
+
+ return false;
+}
+
+unsigned int FGAirport::numTaxiways() const
+{
+ return mTaxiways.size();
+}
+
+FGTaxiway* FGAirport::getTaxiwayByIndex(unsigned int aIndex) const
+{
+ assert(aIndex >= 0 && aIndex < mTaxiways.size());
+ return mTaxiways[aIndex];
+}
+
+void FGAirport::setRunwaysAndTaxiways(vector<FGRunwayPtr>& rwys,
+ vector<FGTaxiwayPtr>& txwys)
+{
+ mRunways.swap(rwys);
+ Runway_iterator it = mRunways.begin();
+ for (; it != mRunways.end(); ++it) {
+ (*it)->setAirport(this);
+ }
+
+ mTaxiways.swap(txwys);
+}
+
+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<FGAirport*>(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;
+ AirportFilter filter;
+ r = FGPositioned::findNextWithPartialId(r, aIdent, &filter);
+ if (!r) {
+ return NULL; // we don't warn here, let the caller do that
+ }
+ return static_cast<FGAirport*>(r.ptr());
+}
+
+FGAirport* FGAirport::getByIdent(const std::string& aIdent)
+{
+ FGPositionedRef r;
+ AirportFilter filter;
+ r = FGPositioned::findNextWithPartialId(r, aIdent, &filter);
+ if (!r) {
+ throw sg_range_exception("No such airport with ident: " + aIdent);
+ }
+ return static_cast<FGAirport*>(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);
}
-const FGAirport *FGAirportList::getAirport( int index ) const
+// find basic airport location info from airport database
+const FGAirport *fgFindAirportID( const string& id)
{
- return airports_array[index];
+ if ( id.empty() ) {
+ return NULL;
+ }
+
+ return FGAirport::findByIdent(id);
}
-/**
- * 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 )
+{
+ 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;
+ }
}
-/**
- * Mark the specified airport record as (yes) having metar
- */
-void FGAirportList::has_metar( const string &id ) {
- airports_by_id[id]._has_metar = true;
+// 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);
+ }
}
projects / flightgear.git / blobdiff