hr0nix / BlueSkies

A simple canopy landing simulator
http://hr0nix.github.io/BlueSkies/
MIT License
13 stars 5 forks source link

The wind direction reported in degrees is incorrect #16

Closed hr0nix closed 10 years ago

hr0nix commented 10 years ago

From the feedback:

Hi Boris The wind direction is opposite to the normal terminology. I put in a wind from 180 (south) and the simulator was acting like a 360 (north) wind. By having the "blowing towards" direction instead of the "blowing from" direction is confusing and is not the way skydivers or pilots normally refer to wind.

From Wikipedia: http://en.wikipedia.org/wiki/Wind_direction

Wind direction is reported by the direction from which it originates. For example, a northerly wind blows from the north to the south.[1] Wind direction is usually reported in cardinal directions or in azimuth degrees. For example, a wind coming from the south is given as 180 degrees; one from the east is 90 degrees.