Gradient from distance (walkscore)

Hello friends

I’m a beginner in Grasshopper and I need to present my post graduate work in the next week. I would like to do something close to this Walkscore example:

In the file below, I identified a radius of 400m. I would like that the farther from this radius, the darker. I need some help, please!

URBAN AREA with building.3dm (326.7 KB) (12.1 KB)


Simply try measuring distances from your origin points, either use dynamic or fixed bounds. (22.1 KB)

WK (90.6 KB)
It’s fun.