Contours Falloff/Fade out in Grasshopper?

Hi, i’m wondering if anyone has tried to do something like below in grasshopper with any success?

So far i’ve only been able to achieve it manually which has been relatively tedious going in and deleting the ones I don’t want one by one, here’s what i’ve got in grasshopper so far but i’m pretty stumped on how best to go about it…

any help would be greatly appreciated, cheers
201106_Contour (91.7 KB)

201106_Contour (98.6 KB)


Wow works like a charm! Thank you @HS_Kim can always rely on your genius :smiley: