I've been meaing to get back to quads by latitude and chunks... Here I have a pretty standard oval, mostly because I have been on a word wrap to world div kick. In any case, I want to chunk up my world oval by bands of latitude and then subdivide those lattitude quads. I start with a circumference for world size, width and height.
41986 km across, 420px by 210px with a total surface area of 561.12 m. km^2
Top: 52, Bottom: 112, Left: 224 and Right: 274. Area of the quad: 51.9 m.km^2
polygon(246px 52px, 123px 52px, 224px 112px, 274px 112px)
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