A Boolean value that indicates the orientation of tile indexes along the y axis.
- iOS 7.0+
- macOS 10.9+
- tvOS 9.2+
When set to
NO, tile indexes start in the upper-left corner of the map and proceed down and to the right. Thus, the tile at
(0, 0)is in the upper-left corner of the map, the tile at
(1, 0) is to its immediate right and the tile at
(0, 1) is immediately below it. Setting this property to
YES causes the map to start indexes at the lower-left corner of the map and proceed up and to the right.
The default value of this property is