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flightgear/src/Instrumentation/tacan.hxx

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// dme.hxx - distance-measuring equipment.
// Written by David Megginson, started 2003.
//
// This file is in the Public Domain and comes with no warranty.
#ifndef __INSTRUMENTS_TACAN_HXX
#define __INSTRUMENTS_TACAN_HXX 1
#ifndef __cplusplus
# error This library requires C++
#endif
#include <simgear/math/point3d.hxx>
#include <simgear/props/props.hxx>
#include <simgear/structure/subsystem_mgr.hxx>
/**
* Model a TACAN radio.
*
* Input properties:
*
* /position/longitude-deg
* /position/latitude-deg
* /position/altitude-ft
* /heading
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* /systems/electrical/outputs/TACAN
* /instrumentation/"name"/serviceable
* /instrumentation/"name"/frequencies/source
* /instrumentation/"name"/frequencies/selected-mhz
*
* Output properties:
*
* /instrumentation/"name"/in-range
* /instrumentation/"name"/indicated-distance-nm
* /instrumentation/"name"/indicated-ground-speed-kt
* /instrumentation/"name"/indicated-time-kt
*/
class TACAN : public SGSubsystem
{
public:
TACAN ( SGPropertyNode *node );
TACAN ();
virtual ~TACAN ();
virtual void init ();
virtual void update (double delta_time_sec);
private:
void search (double frequency, double longitude_rad,
double latitude_rad, double altitude_m);
double searchChannel (const string& _channel);
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SGPropertyNode_ptr _longitude_node;
SGPropertyNode_ptr _latitude_node;
SGPropertyNode_ptr _altitude_node;
SGPropertyNode_ptr _heading_node;
SGPropertyNode_ptr _yaw_node;
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SGPropertyNode_ptr _serviceable_node;
SGPropertyNode_ptr _electrical_node;
SGPropertyNode_ptr _source_node;
SGPropertyNode_ptr _frequency_node;
SGPropertyNode_ptr _display_node;
SGPropertyNode_ptr _x_shift_node;
SGPropertyNode_ptr _y_shift_node;
SGPropertyNode_ptr _rotation_node;
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SGPropertyNode_ptr _in_range_node;
SGPropertyNode_ptr _distance_node;
SGPropertyNode_ptr _speed_node;
SGPropertyNode_ptr _time_node;
SGPropertyNode_ptr _bearing_node;
SGPropertyNode_ptr _ident_node;
SGPropertyNode_ptr _name_node;
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SGPropertyNode_ptr _carrier_name_node;
SGPropertyNode_ptr _channel_node;
SGPropertyNode_ptr _tanker_callsign_node;
SGPropertyNode_ptr _mp_callsign_node;
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double _last_distance_nm;
double _last_frequency_mhz;
double _time_before_search_sec;
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bool _carrier_valid;
bool _tanker_valid;
bool _mp_tanker_valid;
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bool _transmitter_valid;
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Point3D _transmitter;
double _transmitter_lat, _transmitter_lon;
double _transmitter_elevation_ft;
double _transmitter_range_nm;
double _transmitter_bearing_deg;
double _transmitter_bias;
string _transmitter_name;
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double _carrier_lat, _carrier_lon;
double _carrier_elevation_ft;
double _carrier_range_nm;
double _carrier_bearing_deg;
double _carrier_bias;
string _carrier_name;
double _tanker_lat, _tanker_lon;
double _tanker_elevation_ft;
double _tanker_range_nm;
double _tanker_bearing_deg;
double _tanker_bias;
string _tanker_name;
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string name;
int num;
};
#endif // __INSTRUMENTS_TACAN_HXX