3 ms·
Reprojection is accurate locally but inaccurate at scale. Geodesics are the most accurate (Vincenty etc) but are computationally heavy. Haversine is a nice mi
by wenc 1y ago
Reprojection is accurate locally but inaccurate at scale.
Geodesics are the most accurate (Vincenty etc) but are computationally heavy.
Haversine is a nice middle ground.
- wodenokoto 1y agoBut is it actually inaccurate at scale? I get that drawing a projection is inaccurate at scale, but if I do all my calculation as meters north/south and east/west of 0,0 on the equator, won’t all my distance calculations be correct? Like 5.000.000 east and 0 m north is 5.000km from the origin. I cannot see how that could ever become inaccurate as I move further away. Where is the inaccuracy introduced? When I reproject back to coordinates on a globe?
- wenc 1y agoBtw, you can plug your comment into ChatGPT and it'll give you a reasonable answer. The short answer is: distortions.