File:pasture.data-float32-4320x2160

Summary

Map of Earth with all pasture land shown in black.

Methodology

Made from File:pasture.data-float32-4320x2160 and File:blue-marble-posterized.png.

Image generator code:

pasture<< data/pasture.data-float32-4320x2160  # pasture density
earth  << data/blue-marble-posterized.png      # base layer

pasture >= 0       # remove junk data
pasture :: earth.r # resize to fit base layer 

earth.r -= pasture
earth.g -= pasture
earth.b -= pasture
earth.r @@ 01
earth.g @@ 01
earth.b @@ 01
earth >> data/land-crop1.png

Zipped download

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The file is 4 MB when zipped, and 36 MB when unzipped.