I don’t know what you would think of my suggestion, but there is only one reason as to why I use the dots for the wind direction graph as opposed to the line.
When the wind goes form 0c to 360c the graph draws a but ugly line from one side to the other side. It badly looks messy. Appart from that it looks rather good.
Is there some way that you can make it so all it does is show the line going on the X axsis when folowing along that line and omit the Y axis. It would look so much cleaner and would be far easier to read on the eye.