[OSM-dev] Code to determine tile boundaries?

[Hakan Tandogan]

Hi,


I need to determine the boundaries of a given (z-12) tile at home tile.
Reversing the equatation for mapping longitutes to the x coordinate is
easy, but I can't find a way to map latitudes to the y coordinate (except
calculating all possible tiles and caching the southern latitude).

Is there some code somewhere in svn that I could adapt?


Regards,
Hakan

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