lunhg

n = 19
points = {x:[],y:[]} for i in [0..n-1]

update = (a, fn) -> 
  for _n in [0..a.length-1]
    for key,val of a[_n]
        fn(_n,key,val)
    @text a[_n], 10, (_n+1)*(n/@width)
        
callback = (n, k, v) ->