hello !! i'm working in a school project where i need to make a chart showing the speed of wind & its direction , for this i need to make a polar chart with lines like this example :
link----> goo.gl/eYFXVg
i have to draw lines like the blue arrows in the example where the length of the raduis represent the wind speed & the angle of the line is the direction of wind , hope that i clearly explain my problem & wish i get the answer in brief time
PS: i don't really need to draw arrows , just simple lineshape is enough , thnxx in advance