[derez]

The library is updated to ver 1.2, with the addition of Map method. It enables the use of large maps in navigation programs.
The map is calibrated by dual (lat-long + x-y ) coordinates of four points, and returns the x - y of a input lat-long, the local rotation from north, and the horizontal and vertical ratios of the map (map/real).

I'll be glad to further explain if this + the help isn't clear enough.