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flightgear/src/Navaids/navlist.hxx

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// navlist.hxx -- navaids management class
//
// Written by Curtis Olson, started April 2000.
//
// Copyright (C) 2000 Curtis L. Olson - curt@flightgear.org
//
// 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.
//
// $Id$
#ifndef _FG_NAVLIST_HXX
#define _FG_NAVLIST_HXX
#include <simgear/compiler.h>
#include <simgear/misc/sg_path.hxx>
#include <map>
#include <vector>
#include "nav.hxx"
SG_USING_STD(map);
SG_USING_STD(vector);
class FGNavList {
// 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 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;
nav_map_type navaids;
public:
FGNavList();
~FGNavList();
// load the navaids and build the map
bool init( SGPath path );
// 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 );
};
extern FGNavList *current_navlist;
#endif // _FG_NAVLIST_HXX