1 // dme.hxx - distance-measuring equipment.
2 // Written by David Megginson, started 2003.
4 // This file is in the Public Domain and comes with no warranty.
7 #ifndef __INSTRUMENTS_TACAN_HXX
8 #define __INSTRUMENTS_TACAN_HXX 1
11 # error This library requires C++
14 #include <simgear/math/point3d.hxx>
15 #include <simgear/props/props.hxx>
16 #include <simgear/structure/subsystem_mgr.hxx>
20 * Model a TACAN radio.
24 * /position/longitude-deg
25 * /position/latitude-deg
26 * /position/altitude-ft
27 * /systems/electrical/outputs/TACAN
28 * /instrumentation/"name"/serviceable
29 * /instrumentation/"name"/frequencies/source
30 * /instrumentation/"name"/frequencies/selected-mhz
34 * /instrumentation/"name"/in-range
35 * /instrumentation/"name"/indicated-distance-nm
36 * /instrumentation/"name"/indicated-ground-speed-kt
37 * /instrumentation/"name"/indicated-time-kt
39 class TACAN : public SGSubsystem
44 TACAN ( SGPropertyNode *node );
49 virtual void update (double delta_time_sec);
53 void search (double frequency, double longitude_rad,
54 double latitude_rad, double altitude_m);
55 double searchChannel (const string& _channel);
57 SGPropertyNode_ptr _longitude_node;
58 SGPropertyNode_ptr _latitude_node;
59 SGPropertyNode_ptr _altitude_node;
60 SGPropertyNode_ptr _serviceable_node;
61 SGPropertyNode_ptr _electrical_node;
62 SGPropertyNode_ptr _source_node;
63 SGPropertyNode_ptr _frequency_node;
65 SGPropertyNode_ptr _in_range_node;
66 SGPropertyNode_ptr _distance_node;
67 SGPropertyNode_ptr _speed_node;
68 SGPropertyNode_ptr _time_node;
69 SGPropertyNode_ptr _bearing_node;
70 SGPropertyNode_ptr _ident_node;
71 SGPropertyNode_ptr _name_node;
73 SGPropertyNode_ptr _carrier_name_node;
74 SGPropertyNode_ptr _channel_node;
76 double _last_distance_nm;
77 double _last_frequency_mhz;
78 double _time_before_search_sec;
81 bool _transmitter_valid;
84 double _transmitter_lat, _transmitter_lon;
85 double _transmitter_elevation_ft;
86 double _transmitter_range_nm;
87 double _transmitter_bearing_deg;
88 double _transmitter_bias;
89 string _transmitter_name;
91 double _carrier_lat, _carrier_lon;
92 double _carrier_elevation_ft;
93 double _carrier_range_nm;
94 double _carrier_bearing_deg;
104 #endif // __INSTRUMENTS_TACAN_HXX