//
// Written by Curtis Olson, started April 2000.
//
-// Copyright (C) 2000 Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 2000 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.
//
// $Id$
#include <simgear/compiler.h>
-#include <simgear/misc/sg_path.hxx>
+
+#include <simgear/structure/SGSharedPtr.hxx>
#include <map>
#include <vector>
-#include STL_STRING
+#include <string>
-#include "nav.hxx"
+#include "navrecord.hxx"
-SG_USING_STD(map);
-SG_USING_STD(vector);
-SG_USING_STD(string);
+// forward decls
+class SGGeod;
-class FGNavList {
+// FGNavList ------------------------------------------------------------------
+
+typedef SGSharedPtr<FGNavRecord> nav_rec_ptr;
+typedef std::vector < nav_rec_ptr > nav_list_type;
+typedef nav_list_type::iterator nav_list_iterator;
+typedef nav_list_type::const_iterator nav_list_const_iterator;
- // convenience types
- typedef vector < FGNav* > nav_list_type;
- typedef nav_list_type::iterator nav_list_iterator;
- typedef nav_list_type::const_iterator nav_list_const_iterator;
+typedef std::map < int, nav_list_type > nav_map_type;
+typedef nav_map_type::iterator nav_map_iterator;
+typedef nav_map_type::const_iterator nav_map_const_iterator;
- typedef map < int, nav_list_type > nav_map_type;
- typedef nav_map_type::iterator nav_map_iterator;
- typedef nav_map_type::const_iterator nav_map_const_iterator;
+class FGNavList {
- typedef map < string, nav_list_type > nav_ident_map_type;
-
+ nav_list_type carrierlist;
nav_map_type navaids;
- nav_ident_map_type ident_navaids;
-
- // internal helper to pick a Nav item from a nav_list based on
- // distance from the aircraft point
- bool findNavFromList(const Point3D &aircraft,
- nav_list_iterator current,
- nav_list_iterator last,
- FGNav *n);
-
+
+ // Given a point and a list of stations, return the closest one to
+ // the specified point.
+ FGNavRecord *findNavFromList( const SGGeod &aircraft,
+ const nav_list_type &stations );
+
public:
FGNavList();
~FGNavList();
- // load the navaids and build the map
- bool init( SGPath path );
+ // initialize the nav list
+ bool init();
- // query the database for the specified frequency, lon and lat are
- // in degrees, elev is in meters
- bool query( double lon, double lat, double elev, double freq, FGNav *n );
+ // add an entry
+ bool add( FGNavRecord *n );
- // locate closest item in the DB matching the requested ident
- bool findByIdent(const char* ident, double lon, double lat, FGNav *nav);
+ /** Query the database for the specified station. It is assumed
+ * that there will be multiple stations with matching frequencies
+ * so a position must be specified.
+ */
+ FGNavRecord *findByFreq( double freq, const SGGeod& position);
+
+ // Given an Ident and optional freqency, return the first matching
+ // station.
+ FGNavRecord *findByIdentAndFreq( const std::string& ident,
+ const double freq = 0.0 );
+
+ // given a frequency returns the first matching entry
+ FGNavRecord *findStationByFreq( double frequency );
};
-extern FGNavList *current_navlist;
+// FGTACANList ----------------------------------------------------------------
+
+
+typedef SGSharedPtr<FGTACANRecord> tacan_rec_ptr;
+typedef std::vector < tacan_rec_ptr > tacan_list_type;
+typedef std::map < int, tacan_list_type > tacan_map_type;
+typedef std::map < std::string, tacan_list_type > tacan_ident_map_type;
+
+class FGTACANList {
+
+ tacan_list_type channellist;
+ tacan_map_type channels;
+ tacan_ident_map_type ident_channels;
+
+public:
+
+ FGTACANList();
+ ~FGTACANList();
+
+ // initialize the TACAN list
+ bool init();
+
+ // add an entry
+ bool add( FGTACANRecord *r );
+
+ // Given a TACAN Channel, return the appropriate frequency.
+ FGTACANRecord *findByChannel( const std::string& channel );
+
+
+};
#endif // _FG_NAVLIST_HXX