Dynamic latitude in map scale calc #1618
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giswqs
approved these changes
Jul 7, 2023
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Map center latitude was hard-coded to 0 in calculation of approx map scale. Since latitude is non-linear in EPSG:3857, it'll be more accurate if we get the center latitude of the map and use it in the equation. At low zoom levels the scale is pretty meaningless, but at zooms of 10+ it can be useful.
I've tested the changes at +/- the same latitude around 0 and in progression from 0 to ~70 degrees and at varying zoom levels.