Re: On cultural differences

[Gary E. Miller]

Yo Владимир!

On Sat, 13 Jul 2024 12:35:28 +0300
Владимир Калачихин <v.kalachikhin@gmail.com> wrote:

> Do I understand correctly that in the English language "wind angle"
> is the angle between the bow of the vessel and the direction from
> which the wind blows?
> And the "wind direction" is the angle between the North and the 
> direction from which the wind blows?

I know at least five wind angles used by NMEA.

Wind angle from True North
Wind angle from Magnetic North
Wind angle from the where the bow points
Wind angle from true course.
Wind angle from true course.

> So gpsd always uses "wind angle" and never "wind direction"? Even if 
> there is only NMEA0183 MWD sentences?

NMEA 0183 says of WMD:

"The direction from which the wind blows across the earths surface,
with respect to North..."

MWD can report True or Magnetic.

Do you think you see a specific error in gpsd usage?

RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        gem@rellim.com  Tel:+1 541 382 8588

            Veritas liberabit vos. -- Quid est veritas?
    "If you can't measure it, you can't improve it." - Lord Kelvin

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