I wanted to used the wind calculation and wind direction on the HUD.
So after the fly i take the tlog recorded and try to extract the wind parameters.
But cleary it is not the same so i suppose that the data store are some raw data and there is some calculation to show real wind value to the HUD.
Where i can find this calcul ?
Thanks for you help
mavlink already contains WIND message with the information you are looking for ?
thanks for you answer
Yes and no...
I look the tlog files with mission planer and there is on the screen Wind-vel and Wind_dir but it s the same in the Quick Windows so cleary th data was store.
But when i check the data from the tlog in txt or in matalb i see
for txt Mavlink_wind_t_direction xxx speed xxx sped z xxx len 20 it s absoloutly not the same value for speed and wind direction
for tlog.mat i have 3 data "direction_mavlink_wind_t" and "speed_mavelink_wind_t" and speed-z__mavelink_wind_t
BUT they very differents than the value from HUD. Compare to real wind the data are good and usefull.
So i suppose they is some mistake in conversion in txt or matlab or there is some calculs to do for the hud ?