9b900e9430
Cache the parsed navigation and airport data in a binary file to reduce startup times and memory consumption (since only referenced FGPositioned elements are held in memory). Data will be reimported when the mod-time of any input file is changed. If a global file is changed (nav.dat, awy.dat, apt.dat, etc), the cache will be completely rebuilt, which takes approximately 30 seconds on moderate hardware. (Future work may reduce this).
109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
// navrecord.hxx -- generic vor/dme/ndb class
|
|
//
|
|
// Written by Curtis Olson, started May 2004.
|
|
//
|
|
// Copyright (C) 2004 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
//
|
|
// $Id$
|
|
|
|
|
|
#ifndef _FG_NAVRECORD_HXX
|
|
#define _FG_NAVRECORD_HXX
|
|
|
|
#include <iosfwd>
|
|
|
|
#include "positioned.hxx"
|
|
|
|
const double FG_NAV_DEFAULT_RANGE = 50; // nm
|
|
const double FG_LOC_DEFAULT_RANGE = 18; // nm
|
|
const double FG_DME_DEFAULT_RANGE = 50; // nm
|
|
const double FG_NAV_MAX_RANGE = 300; // nm
|
|
|
|
// forward decls
|
|
class FGRunway;
|
|
class SGPropertyNode;
|
|
|
|
class FGNavRecord : public FGPositioned
|
|
{
|
|
|
|
int freq;
|
|
int range;
|
|
double multiuse; // can be slaved variation of VOR
|
|
// (degrees) or localizer heading
|
|
// (degrees) or dme bias (nm)
|
|
|
|
std::string mName; // verbose name in nav database
|
|
PositionedID mRunway; // associated runway, if there is one
|
|
|
|
bool serviceable; // for failure modeling
|
|
|
|
void processSceneryILS(SGPropertyNode* aILSNode);
|
|
public:
|
|
FGNavRecord(PositionedID aGuid, Type type, const std::string& ident,
|
|
const std::string& name,
|
|
const SGGeod& aPos,
|
|
int freq, int range, double multiuse,
|
|
PositionedID aRunway);
|
|
|
|
inline double get_lon() const { return longitude(); } // degrees
|
|
inline double get_lat() const { return latitude(); } // degrees
|
|
inline double get_elev_ft() const { return elevation(); }
|
|
|
|
inline int get_freq() const { return freq; }
|
|
inline int get_range() const { return range; }
|
|
inline double get_multiuse() const { return multiuse; }
|
|
inline void set_multiuse( double m ) { multiuse = m; }
|
|
inline const char *get_ident() const { return ident().c_str(); }
|
|
|
|
inline bool get_serviceable() const { return serviceable; }
|
|
inline const char *get_trans_ident() const { return get_ident(); }
|
|
|
|
virtual const std::string& name() const
|
|
{ return mName; }
|
|
|
|
/**
|
|
* Retrieve the runway this navaid is associated with (for ILS/LOC/GS)
|
|
*/
|
|
FGRunway* runway() const;
|
|
|
|
/**
|
|
* return the localizer width, in degrees
|
|
* computation is based up ICAO stdandard width at the runway threshold
|
|
* see implementation for further details.
|
|
*/
|
|
double localizerWidth() const;
|
|
|
|
void bindToNode(SGPropertyNode* nd) const;
|
|
void unbindFromNode(SGPropertyNode* nd) const;
|
|
};
|
|
|
|
class FGTACANRecord : public SGReferenced {
|
|
|
|
std::string channel;
|
|
int freq;
|
|
|
|
public:
|
|
|
|
FGTACANRecord(void);
|
|
inline ~FGTACANRecord(void) {}
|
|
|
|
inline const std::string& get_channel() const { return channel; }
|
|
inline int get_freq() const { return freq; }
|
|
friend std::istream& operator>> ( std::istream&, FGTACANRecord& );
|
|
};
|
|
|
|
#endif // _FG_NAVRECORD_HXX
|