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flightgear/src/Navaids/navlist.hxx

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2000-04-21 16:42:01 +00:00
// navlist.hxx -- navaids management class
//
// Written by Curtis Olson, started April 2000.
//
// 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
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// 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.
//
// $Id$
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#ifndef _FG_NAVLIST_HXX
#define _FG_NAVLIST_HXX
#include <simgear/compiler.h>
#include <simgear/misc/sg_path.hxx>
#include <map>
#include <vector>
#include STL_STRING
#include "navrecord.hxx"
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SG_USING_STD(map);
SG_USING_STD(vector);
SG_USING_STD(string);
// convenience types
typedef vector < FGNavRecord* > 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 > 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;
class FGNavList {
nav_list_type navlist;
nav_map_type navaids;
nav_map_type navaids_by_tile;
nav_ident_map_type ident_navaids;
// Given a point and a list of stations, return the closest one to
// the specified point.
FGNavRecord *findNavFromList( const Point3D &aircraft,
const nav_list_type &stations );
public:
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FGNavList();
~FGNavList();
// initialize the nav list
bool init();
// add an entry
bool add( FGNavRecord *n );
// 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.
FGNavRecord *findByFreq( double freq, double lon, double lat, double elev );
// 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.
FGNavRecord *findByLoc( double lon, double lat, double elev );
// locate closest item in the DB matching the requested ident
FGNavRecord *findByIdent( const char* ident, const double lon, const double lat );
// Given an Ident and optional freqency, return the first matching
// station.
FGNavRecord *findByIdentAndFreq( const char* ident,
const double freq = 0.0 );
// returns the closest entry to the give lon/lat/elev
FGNavRecord *findClosest( double lon_rad, double lat_rad, double elev_m );
inline nav_map_type get_navaids() const { return navaids; }
};
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#endif // _FG_NAVLIST_HXX