#include <simgear/compiler.h>
-#include <simgear/misc/fgpath.hxx>
+#include <simgear/misc/sg_path.hxx>
#include <map>
#include <vector>
+#include STL_STRING
#include "nav.hxx"
-FG_USING_STD(map);
-FG_USING_STD(vector);
-
+SG_USING_STD(map);
+SG_USING_STD(vector);
+SG_USING_STD(string);
class FGNavList {
// convenience types
- typedef vector < FGNav > nav_list_type;
+ 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 map < int, nav_list_type, less<int> > nav_map_type;
+ 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;
+ typedef map < string, nav_list_type > nav_ident_map_type;
+
nav_map_type navaids;
-
+ nav_ident_map_type ident_navaids;
+
+ // Given a point and a list of stations, return the closest one to
+ // the specified point.
+ FGNav *findNavFromList( const Point3D &aircraft,
+ const nav_list_type &stations );
+
public:
FGNavList();
~FGNavList();
// load the navaids and build the map
- bool init( FGPath path );
+ bool init( SGPath path );
+
+ // Query the database for the specified frequency. It is assumed
+ // that there will be multiple stations with matching frequencies
+ // so a position must be specified. Lon and lat are in degrees,
+ // elev is in meters.
+ FGNav *findByFreq( double freq, double lon, double lat, double elev );
+
+ // locate closest item in the DB matching the requested ident
+ FGNav *findByIdent( const char* ident, const double lon, const double lat );
- // 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 );
+ // Given an Ident and optional freqency, return the first matching
+ // station.
+ FGNav *findByIdentAndFreq( const char* ident, const double freq = 0.0 );
};