A rectangular block of Web Mercator tiles at one zoom, draped as a single composited texture. (x0,y0) is the north-west tile; the block is cols × rows tiles, each 256².
(x0,y0)
cols × rows
A rectangular block of Web Mercator tiles at one zoom, draped as a single composited texture.
(x0,y0)is the north-west tile; the block iscols × rowstiles, each 256².