1 // net_gui.hxx -- defines a simple subset I/O interface to the flight
2 // dynamics model variables
4 // Written by Curtis Olson - curt@flightgear.com, started January 2002.
6 // This file is in the Public Domain, and comes with no warranty.
14 #include <simgear/compiler.h>
16 // NOTE: this file defines an external interface structure. Due to
17 // variability between platforms and architectures, we only used fixed
18 // length types here. Specifically, integer types can vary in length.
19 // I am not aware of any platforms that don't use 4 bytes for float
20 // and 8 bytes for double.
26 const uint32_t FG_NET_GUI_VERSION = 7;
29 // Define a structure containing the top level flight dynamics model
42 uint32_t version; // increment when data values change
45 double longitude; // geodetic (radians)
46 double latitude; // geodetic (radians)
47 float altitude; // above sea level (meters)
48 float agl; // above ground level (meters)
49 float phi; // roll (radians)
50 float theta; // pitch (radians)
51 float psi; // yaw or true heading (radians)
55 float climb_rate; // feet per second
58 uint32_t num_tanks; // Max number of fuel tanks
59 float fuel_quantity[FG_MAX_TANKS];
62 uint32_t cur_time; // current unix time
63 // FIXME: make this uint64_t before 2038
64 uint32_t warp; // offset in seconds to unix time
65 float ground_elev; // ground elev (meters)
68 float tuned_freq; // currently tuned frequency
69 float nav_radial; // target nav radial
70 uint32_t in_range; // tuned navaid is in range?
71 float dist_nm; // distance to tuned navaid in nautical miles
72 float course_deviation_deg; // degrees off target course
73 float gs_deviation_deg; // degrees off target glide slope
77 #endif // _NET_GUI_HXX