Closed osmuser63783 closed 8 months ago
Yes, it would make sense to re-project coordinates on the fly to make large area calculations more accurate near the poles. We'll put this into the next major release (Issue #22)
Related: Issue #1
It turns out this is a bug (The Mercator projection, with a proper scale factor applied, actually returns reasonably accurate areas even near the poles). A fix is on its way.
Caused by #32 (Fixed)
I realise that Core concepts explains about the Mercator projection and I guess this is why the result of
.area
on objects near the poles overestimates their actual area.It would be nice if (1) the documentation here mentioned this (if only to save GIS beginners some confusion why the numbers don't make sense), and (2) if the documentation pointed to a way to solve this in Python not just Java. (Ideally of course I’d like to get accurate area calculations from .area but I realise this may be out of scope.)