1 // navlist.hxx -- navaids management class
3 // Written by Curtis Olson, started April 2000.
5 // Copyright (C) 2000 Curtis L. Olson - curt@flightgear.org
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #ifndef _FG_NAVLIST_HXX
25 #define _FG_NAVLIST_HXX
28 #include <simgear/compiler.h>
29 #include <simgear/misc/sg_path.hxx>
35 #include "navrecord.hxx"
43 typedef vector < FGNavRecord* > nav_list_type;
44 typedef nav_list_type::iterator nav_list_iterator;
45 typedef nav_list_type::const_iterator nav_list_const_iterator;
47 typedef map < int, nav_list_type > nav_map_type;
48 typedef nav_map_type::iterator nav_map_iterator;
49 typedef nav_map_type::const_iterator nav_map_const_iterator;
51 typedef map < string, nav_list_type > nav_ident_map_type;
56 nav_list_type navlist;
58 nav_map_type navaids_by_tile;
59 nav_ident_map_type ident_navaids;
61 // Given a point and a list of stations, return the closest one to
62 // the specified point.
63 FGNavRecord *findNavFromList( const Point3D &aircraft,
64 const nav_list_type &stations );
71 // initialize the nav list
75 bool add( FGNavRecord *n );
77 // Query the database for the specified frequency. It is assumed
78 // that there will be multiple stations with matching frequencies
79 // so a position must be specified. Lon and lat are in degrees,
81 FGNavRecord *findByFreq( double freq, double lon, double lat, double elev );
83 // Query the database for the specified frequency. It is assumed
84 // that there will be multiple stations with matching frequencies
85 // so a position must be specified. Lon and lat are in degrees,
87 FGNavRecord *findByLoc( double lon, double lat, double elev );
89 // locate closest item in the DB matching the requested ident
90 FGNavRecord *findByIdent( const char* ident, const double lon, const double lat );
92 // Given an Ident and optional freqency, return the first matching
94 FGNavRecord *findByIdentAndFreq( const char* ident,
95 const double freq = 0.0 );
97 // returns the closest entry to the give lon/lat/elev
98 FGNavRecord *findClosest( double lon_rad, double lat_rad, double elev_m );
100 inline nav_map_type get_navaids() const { return navaids; }
104 #endif // _FG_NAVLIST_HXX