1 // adf.hxx - automatic direction finder.
2 // Written by David Megginson, started 2003.
4 // This file is in the Public Domain and comes with no warranty.
7 #ifndef __INSTRUMENTS_ADF_HXX
8 #define __INSTRUMENTS_ADF_HXX 1
11 # error This library requires C++
16 #include <simgear/math/point3d.hxx>
17 #include <simgear/props/props.hxx>
19 #include <simgear/structure/subsystem_mgr.hxx>
29 * /position/longitude-deg
30 * /position/latitude-deg
31 * /position/altitude-ft
32 * /orientation/heading-deg
33 * /systems/electrical/outputs/adf
34 * /instrumentation/adf/serviceable
35 * /instrumentation/adf/error-deg
36 * /instrumentation/adf/frequencies/selected-khz
37 * /instrumentation/adf/mode
41 * /instrumentation/adf/in-range
42 * /instrumentation/adf/indicated-bearing-deg
43 * /instrumentation/adf/ident
45 class ADF : public SGSubsystem
54 virtual void update (double delta_time_sec);
58 void set_bearing (double delta_time_sec, double bearing);
60 void search (double frequency, double longitude_rad,
61 double latitude_rad, double altitude_m);
63 SGPropertyNode_ptr _longitude_node;
64 SGPropertyNode_ptr _latitude_node;
65 SGPropertyNode_ptr _altitude_node;
66 SGPropertyNode_ptr _heading_node;
67 SGPropertyNode_ptr _serviceable_node;
68 SGPropertyNode_ptr _error_node;
69 SGPropertyNode_ptr _electrical_node;
70 SGPropertyNode_ptr _frequency_node;
71 SGPropertyNode_ptr _mode_node;
73 SGPropertyNode_ptr _in_range_node;
74 SGPropertyNode_ptr _bearing_node;
75 SGPropertyNode_ptr _ident_node;
77 double _time_before_search_sec;
79 int _last_frequency_khz;
80 bool _transmitter_valid;
83 double _transmitter_lon_deg;
84 double _transmitter_lat_deg;
85 double _transmitter_elevation_ft;
86 double _transmitter_range_nm;
91 #endif // __INSTRUMENTS_ADF_HXX