How can I have a wind chart bin cross 0 degrees in Grapher? Let's say your bins are in 22.5 degree increments and you wish to have the first bin centered over 0. Select the Wind Chart. On the Plot page in the Property Manager, set Start at to 349. Change the Bin size to 22.5. Updated January 27, 2017 Have more questions? Submit a request 0 Comments Please sign in to leave a comment.