From 0cf72ebb7748b2f66a21cf9c5a2261fd6d5ab8ae Mon Sep 17 00:00:00 2001 From: Yuri Astrakhan Date: Tue, 22 Oct 2019 16:07:23 -0400 Subject: [PATCH] corrected XYZ -> ZYX for clarity --- 1.3/spec.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/1.3/spec.md b/1.3/spec.md index eb581ba..aa1a478 100644 --- a/1.3/spec.md +++ b/1.3/spec.md @@ -121,7 +121,7 @@ of the tile, following the with the restriction that the [global-mercator](http://wiki.osgeo.org/wiki/Tile_Map_Service_Specification#global-mercator) (aka Spherical Mercator) profile MUST be used. -Note that in the TMS tiling scheme, the Y axis is reversed from the "XYZ" coordinate system commonly used in the URLs +Note that in the TMS tiling scheme, the Y axis is reversed from the "ZXY" coordinate system commonly used in the URLs to request individual tiles, so the tile commonly referred to as 11/327/791 is inserted as `zoom_level` 11, `tile_column` 327, and `tile_row` 1256, since 1256 is 2^11 - 1 - 791.