79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
|
// gps.hxx - distance-measuring equipment.
|
||
|
|
// Written by David Megginson, started 2003.
|
||
|
|
//
|
||
|
|
// This file is in the Public Domain and comes with no warranty.
|
||
|
|
|
||
|
|
|
||
|
|
#ifndef __INSTRUMENTS_GPS_HXX
|
||
|
|
#define __INSTRUMENTS_GPS_HXX 1
|
||
|
|
|
||
|
|
#ifndef __cplusplus
|
||
|
|
# error This library requires C++
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <simgear/misc/props.hxx>
|
||
|
|
#include <Main/fgfs.hxx>
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Model a GPS radio.
|
||
|
|
*
|
||
|
|
* Input properties:
|
||
|
|
*
|
||
|
|
* /position/longitude-deg
|
||
|
|
* /position/latitude-deg
|
||
|
|
* /position/altitude-ft
|
||
|
|
* /environment/magnetic-variation-deg
|
||
|
|
* /systems/electrical/outputs/gps
|
||
|
|
* /instrumentation/gps/serviceable
|
||
|
|
*
|
||
|
|
* Output properties:
|
||
|
|
*
|
||
|
|
* /instrumentation/gps/indicated-longitude-deg
|
||
|
|
* /instrumentation/gps/indicated-latitude-deg
|
||
|
|
* /instrumentation/gps/indicated-altitude-ft
|
||
|
|
* /instrumentation/gps/indicated-track-true-deg
|
||
|
|
* /instrumentation/gps/indicated-track-magnetic-deg
|
||
|
|
* /instrumentation/gps/indicated-ground-speed-kt
|
||
|
|
*/
|
||
|
|
class GPS : public FGSubsystem
|
||
|
|
{
|
||
|
|
|
||
|
|
public:
|
||
|
|
|
||
|
|
GPS ();
|
||
|
|
virtual ~GPS ();
|
||
|
|
|
||
|
|
virtual void init ();
|
||
|
|
virtual void update (double delta_time_sec);
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
void search (double frequency, double longitude_rad,
|
||
|
|
double latitude_rad, double altitude_m);
|
||
|
|
|
||
|
|
SGPropertyNode_ptr _longitude_node;
|
||
|
|
SGPropertyNode_ptr _latitude_node;
|
||
|
|
SGPropertyNode_ptr _altitude_node;
|
||
|
|
SGPropertyNode_ptr _magvar_node;
|
||
|
|
SGPropertyNode_ptr _serviceable_node;
|
||
|
|
SGPropertyNode_ptr _electrical_node;
|
||
|
|
|
||
|
|
SGPropertyNode_ptr _raim_node;
|
||
|
|
SGPropertyNode_ptr _indicated_longitude_node;
|
||
|
|
SGPropertyNode_ptr _indicated_latitude_node;
|
||
|
|
SGPropertyNode_ptr _indicated_altitude_node;
|
||
|
|
SGPropertyNode_ptr _true_track_node;
|
||
|
|
SGPropertyNode_ptr _magnetic_track_node;
|
||
|
|
SGPropertyNode_ptr _speed_node;
|
||
|
|
|
||
|
|
bool _last_valid;
|
||
|
|
double _last_longitude_deg;
|
||
|
|
double _last_latitude_deg;
|
||
|
|
double _last_altitude_m;
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
#endif // __INSTRUMENTS_GPS_HXX
|