ipv4-heatmap

Really surprised no one has yet posted the software that’s almost certainly used to create these images, the Measurement Factory’s ipv4-heatmap package, on GitHub here: https://github.com/measurement-factory/ipv4-heatmap And, yes, it was absolutely inspired by Randall Munroe’s xkcd Map of the Internet, which someone has already linked. There’s a fork that uses ColorBrewer palettes, which may be what they actually used: https://github.com/hrbrmstr/ipv4-heatmap (I used to work at Akamai and used this to produce monthly versions with each /24 colored based upon how many addresses within it had connected to the company’s network.)

I wish this used a good color mapping, like Viridis or cubehelix, or at least used HSLuv or HPLuv to map the parameters to colors. I bet we could see a lot more patterns in this then. Edit: I made a github issue for this: https://github.com/measurement-factory/ipv4-heatmap/issues/2