Creating Spectral Heat maps or Intensity maps from CDIP data using Ruby

Question

BACKGROUND

Per the Coastal Information Data Program (CDIP), they are generating a spectral heat/intensity map for wave swell at http://cdip.ucsd.edu

Answer 1

I am really in a rush, so can't finish right now, but as nobody answered yet, here is a first approach:

Code in Mathematica (sorry, as I said no time right now):

a = Import["http://cdip.ucsd.edu/data_access/MEM_2dspectra.cdip?100", 
   "Table"];

Graphics@Flatten[Table[

    (*colors, dont mind*)
    {ColorData["CMYKColors"][(a[[r, t]] - .000007)/(.0003 - 0.000007)], 

    (*point size, dont mind*)
    PointSize[1/Sqrt[r]/10], 

    (*Coordinates for your points "a" is your data matrix *)
       Point[
            {(rr =Log[.025 + (.58 - .25)/64 r]) Cos@(tt = t 5 Degree), 
              rr Sin@tt}]
            }

     (*values for the iteration*)
     , {r, 7, 64}, {t, 1, 72}], 1] 

     (*Rotation, dont mind*)
     /. gg : Graphics[___] :> Rotate[gg, Pi/2]  

I still can't get the right color scale: