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flightgear/src/Navaids/fixlist.hxx

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// fixlist.hxx -- fix list management class
//
// Written by Curtis Olson, started April 2000.
//
// Copyright (C) 2000 Curtis L. Olson - http://www.flightgear.org/~curt
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//
// 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
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
// $Id$
#ifndef _FG_FIXLIST_HXX
#define _FG_FIXLIST_HXX
#include <simgear/compiler.h>
#include <simgear/misc/sg_path.hxx>
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#include <map>
#include <vector>
#include <string>
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#include "fix.hxx"
SG_USING_STD(multimap);
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SG_USING_STD(vector);
SG_USING_STD(string);
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// fix names may be globally non-unique. Allow for this.
typedef multimap < string, FGFix > fix_map_type;
typedef fix_map_type::iterator fix_map_iterator;
typedef fix_map_type::const_iterator fix_map_const_iterator;
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class FGFixList {
fix_map_type fixlist;
public:
FGFixList();
~FGFixList();
// load the navaids and build the map
bool init( SGPath path );
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// query the database for the specified fix
bool query( const string& ident, FGFix *f );
// Find fix of requested type with closest exact or following ident
// (by ACSII values) to that supplied (ie. a lower-bound lookup).
// Supplying true for exact forces only exact matches to be returned (similar to above function)
// Returns NULL if no match found.
const FGFix* findFirstByIdent( const string& ident, bool exact = false );
// query the database for the specified fix, lon and lat are
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// in degrees, elev is in meters
bool query_and_offset( const string& ident, double lon, double lat,
double elev, FGFix *f, double *heading,
double *dist );
// Return a pointer to the master fixlist
inline const fix_map_type* getFixList() { return(&fixlist); }
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};
#endif // _FG_FIXLIST_HXX