Inspired by the wind barb graph in beta 3, I added the option to change the live-updating triangle wind direction marker on the home page to a live updating wind barb. Two new options can be set in weewx.conf:
# Wind compass marker defaults
# wind_compass_marker = triangle, windbarb
# wind_compass_source = windSpeed, windGust
wind_compass_marker = "triangle"
wind_compass_source = "windSpeed"
When wind_compass_marker = "windbarb", the rotating triangle is replaced by a wind barb that updates with wind speed. Setting wind_compass_source = "windSpeed" means the barbs are calculated from wind gusts, otherwise the default is wind speed.
