XPLMWeatherInfo_t

XPLMWeatherInfo_t

Basic weather conditions at a specific point. To specify exactly what data you intend to send or receive, it is required to set the structSize appropriately.

Version 2 data starts at “temp_layers”.

typedef struct {
     // The size of the struct. Required for both reading and writing.
     int                       structSize;
     // Temperature at the given altitude in Celsius
     float                     temperature_alt;
     // Dewpoint at the given altitude in Celsius
     float                     dewpoint_alt;
     // Pressure at the given altitude in Pascals. Pass 0 when setting to use sea-level pressure instead of QNH.
     float                     pressure_alt;
     // Precipitation rate at the given altitude. Unused when setting.
     float                     precip_rate_alt;
     // Wind direction at the given altitude. Unused when setting.
     float                     wind_dir_alt;
     // Wind speed at the given altitude, meters/sec. Unused when setting.
     float                     wind_spd_alt;
     // Turbulence ratio at the given altitude. Unused when setting.
     float                     turbulence_alt;
     // Height of water waves in meters
     float                     wave_height;
     // Length of water waves in meters. Unused when setting.
     float                     wave_length;
     // Direction from which water waves are coming
     int                       wave_dir;
     // Speed of wave advance in meters/sec. Unused when setting.
     float                     wave_speed;
     // Base visibility at 0 altitude, meters
     float                     visibility;
     // Base precipitation ratio at 0 altitude
     float                     precip_rate;
     // Climb rate due to thermals, meters/sec
     float                     thermal_climb;
     // Pressure at sealevel in Pascals. Used when setting ONLY if pressure_alt (i.e. QNH) is not valid.
     float                     pressure_sl;
     // Defined wind layers. Not all layers are always defined.
     XPLMWeatherInfoWinds_t    wind_layers[XPLM_NUM_WIND_LAYERS];
     // Defined cloud layers. Not all layers are always defined.
     XPLMWeatherInfoClouds_t   cloud_layers[XPLM_NUM_CLOUD_LAYERS];
     // Temperatures at altitude, in degrees C. Layer altitudes are the same globally - see the 'sim/weather/region/atmosphere_alt_levels_m' dataref.
     float                     temp_layers[XPLM_NUM_TEMPERATURE_LAYERS];
     // Dewpoints at altitude, in degrees C. Layer altitudes are the same globally - see the 'sim/weather/region/atmosphere_alt_levels_m' dataref.
     float                     dewp_layers[XPLM_NUM_TEMPERATURE_LAYERS];
     // The altitude in MSL of the troposphere.
     float                     troposphere_alt;
     // The temperature in degrees C of the troposphere.
     float                     troposphere_temp;
     // Age in seconds of this weather report. Age affects how strongly the report affects the resulting weather.
     float                     age;
     // Horizontal radius of effect of this weather report, nautical miles.
     float                     radius_nm;
     // Vertical radius of effect of this weather report, feet MSL.
     float                     max_altitude_msl_ft;
} XPLMWeatherInfo_t;