https://docs.mapbox.com/help/glossary/zoom-level/#zoom-levels-and-geographical-distance
https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames#Resolution_and_Scale
如何从 Mapbox 获取缩放级别的比例？
发布时间 2023-09-11 23:34:22作者: 槑孒
https://docs.mapbox.com/help/glossary/zoom-level/#zoom-levels-and-geographical-distance
https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames#Resolution_and_Scale