//
// 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
//
// 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 <config.h>
#endif
-// #include <sys/types.h> // for gdbm open flags
-// #include <sys/stat.h> // for gdbm open flags
-
-// #ifdef HAVE_GDBM
-// # include <gdbm.h>
-// #else
-// # include <simgear/gdbm/gdbm.h>
-// #endif
-
-#include <simgear/compiler.h>
-
-#include <simgear/debug/logstream.hxx>
-#include <simgear/misc/fgstream.hxx>
-
-#include STL_STRING
-#include STL_FUNCTIONAL
-#include STL_ALGORITHM
-
#include "simple.hxx"
-SG_USING_NAMESPACE(std);
-
-FGAirports::FGAirports( const string& file ) {
- // open the specified database readonly
- storage = new c4_Storage( file.c_str(), false );
-
- if ( !storage->Strategy().IsValid() ) {
- SG_LOG( SG_GENERAL, SG_ALERT, "Cannot open file: " << file );
- exit(-1);
- }
-
- vAirport = new c4_View;
- *vAirport =
- storage->GetAs("airport[ID:S,Longitude:F,Latitude:F,Elevation:F]");
+#include <simgear/misc/sg_path.hxx>
+#include <simgear/props/props.hxx>
+#include <simgear/props/props_io.hxx>
+#include <simgear/debug/logstream.hxx>
+#include <simgear/sg_inlines.h>
+
+#include <Environment/environment_mgr.hxx>
+#include <Environment/environment.hxx>
+#include <Main/fg_props.hxx>
+#include <Airports/runways.hxx>
+#include <Airports/pavement.hxx>
+#include <Airports/dynamics.hxx>
+#include <Airports/xmlloader.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)
+{
}
-// search for the specified id
-bool
-FGAirports::search( const string& id, FGAirport* a ) const
+FGAirport::~FGAirport()
{
- c4_StringProp pID ("ID");
- c4_FloatProp pLon ("Longitude");
- c4_FloatProp pLat ("Latitude");
- c4_FloatProp pElev ("Elevation");
-
- int idx = vAirport->Find(pID[id.c_str()]);
- cout << "idx = " << idx << endl;
-
- if ( idx == -1 ) {
- return false;
- }
-
- c4_RowRef r = vAirport->GetAt(idx);
-
- a->longitude = (double) pLon(r);
- a->latitude = (double) pLat(r);
- a->elevation = (double) pElev(r);
-
- return true;
+ delete _dynamics;
}
-
-FGAirport
-FGAirports::search( const string& id ) const
+bool FGAirport::isAirport() const
{
- FGAirport a;
- search( id, &a );
- return a;
+ return type() == AIRPORT;
}
+bool FGAirport::isSeaport() const
+{
+ return type() == SEAPORT;
+}
-// Destructor
-FGAirports::~FGAirports( void ) {
- delete storage;
+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);
+
+ //FGSidStar SIDs(this);
+ XMLLoader::load(_dynamics->getSIDs());
+ }
+ return _dynamics;
+}
-// Constructor
-FGAirportsUtil::FGAirportsUtil() {
+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];
+}
-// load the data
-int FGAirportsUtil::load( const string& file ) {
- FGAirport a;
+bool FGAirport::hasRunwayWithIdent(const string& aIdent) const
+{
+ return (getIteratorForRunwayIdent(aIdent) != mRunways.end());
+}
- airports.erase( airports.begin(), airports.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;
+}
- fg_gzifstream in( file );
- if ( !in.is_open() ) {
- SG_LOG( SG_GENERAL, SG_ALERT, "Cannot open file: " << file );
- exit(-1);
+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 first line of file
- char tmp[256];
- in.getline( tmp, 256 );
-
+ return it; // end()
+}
- // read in each line of the file
+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;
+ }
+ }
-#ifdef __MWERKS__
+ return result;
+}
- in >> ::skipws;
- char c = 0;
- while ( in.get(c) && c != '\0' ) {
- if ( c == 'A' ) {
- in >> a;
- in >> skipeol;
- airports.insert(a);
- } else if ( c == 'R' ) {
- in >> skipeol;
- } else {
- in >> skipeol;
- }
- in >> ::skipws;
+bool FGAirport::hasHardRunwayOfLengthFt(double aLengthFt) const
+{
+ loadRunways();
+
+ 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
}
-#else
-
- in >> ::skipws;
- while ( ! in.eof() ) {
- char c = 0;
- in.get(c);
- if ( c == 'A' ) {
- in >> a;
- cout << "in <- " << a.id << endl;
- in >> skipeol;
- airports.insert(a);
- } else if ( c == 'R' ) {
- in >> skipeol;
- } else {
- in >> skipeol;
- }
- in >> ::skipws;
+ if (rwy->isHardSurface() && (rwy->lengthFt() >= aLengthFt)) {
+ return true; // we're done!
}
+ } // of runways iteration
-#endif
+ return false;
+}
+
+unsigned int FGAirport::numTaxiways() const
+{
+ loadTaxiways();
+ return mTaxiways.size();
+}
- return 1;
+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();
+}
-// save the data in gdbm format
-bool FGAirportsUtil::dump_mk4( const string& file ) {
+FGPavement* FGAirport::getPavementByIndex(unsigned int aIndex) const
+{
+ loadTaxiways();
+ assert(aIndex >= 0 && aIndex < mPavements.size());
+ return mPavements[aIndex];
+}
- // open database for writing
- c4_Storage storage( file.c_str(), true );
+void FGAirport::setRunwaysAndTaxiways(vector<FGRunwayPtr>& rwys,
+ vector<FGTaxiwayPtr>& txwys,
+ vector<FGPavementPtr>& pvts)
+{
+ mRunways.swap(rwys);
+ Runway_iterator it = mRunways.begin();
+ for (; it != mRunways.end(); ++it) {
+ (*it)->setAirport(this);
+ }
+
+ mTaxiways.swap(txwys);
+ mPavements.swap(pvts);
+}
- // need to do something about error handling here!
+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);
+}
- // define the properties
- c4_StringProp pID ("ID");
- c4_FloatProp pLon ("Longitude");
- c4_FloatProp pLat ("Latitude");
- c4_FloatProp pElev ("Elevation");
+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());
+}
- // Start with an empty view of the proper structure.
- c4_View vAirport =
- storage.GetAs("airport[ID:S,Longitude:F,Latitude:F,Elevation:F]");
+FGAirport::HardSurfaceFilter::HardSurfaceFilter(double minLengthFt) :
+ mMinLengthFt(minLengthFt)
+{
+}
+
+bool FGAirport::HardSurfaceFilter::passAirport(FGAirport* aApt) const
+{
+ return aApt->hasHardRunwayOfLengthFt(mMinLengthFt);
+}
- c4_Row row;
+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<FGAirport*>(r.ptr());
+}
- const_iterator current = airports.begin();
- const_iterator end = airports.end();
- while ( current != end ) {
- // add each airport record
- cout << "out -> " << current->id << endl;
- pID (row) = current->id.c_str();
- pLon (row) = current->longitude;
- pLat (row) = current->latitude;
- pElev (row) = current->elevation;
- vAirport.Add(row);
+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<FGAirport*>(r.ptr());
+}
- ++current;
+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);
+}
- // commit our changes
- storage.Commit();
+void FGAirport::loadRunways() const
+{
+ if (mRunwaysLoaded) {
+ return; // already loaded, great
+ }
+
+ mRunwaysLoaded = true;
+ loadSceneryDefintions();
+}
- return true;
+void FGAirport::loadTaxiways() const
+{
+ if (mTaxiwaysLoaded) {
+ return; // already loaded, great
+ }
}
+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<FGAirport*>(this)->readThresholdData(rootNode);
+ }
+
+ // repeat for the tower data
+ rootNode = new SGPropertyNode;
+ if (XMLLoader::findAirportData(ident(), "twr", path)) {
+ readProperties(path.str(), rootNode);
+ const_cast<FGAirport*>(this)->readTowerData(rootNode);
+ }
+}
-// search for the specified id
-bool
-FGAirportsUtil::search( const string& id, FGAirport* a ) const
+void FGAirport::readThresholdData(SGPropertyNode* aRoot)
{
- const_iterator it = airports.find( FGAirport(id) );
- if ( it != airports.end() )
- {
- *a = *it;
- return true;
- }
- else
- {
- return false;
- }
+ 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
}
-
-FGAirport
-FGAirportsUtil::search( const string& id ) const
+void FGAirport::processThreshold(SGPropertyNode* aThreshold)
{
- FGAirport a;
- this->search( id, &a );
- return a;
+ // 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);
+}
-// Destructor
-FGAirportsUtil::~FGAirportsUtil( void ) {
+// 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);
+ }
+}
projects / flightgear.git / blobdiff