[Xastir] Datum shifting

[Ian Bennett]

Curt,
	You heard about the Coordinate.pm perl module?? I use it to convert between 
AGD66 used by some of my topo maps to the WGS84 used by Xastir.
	Doco is non-existent but with the assistance of a mate who is a perl guru, I 
managed to wrap an ugly perl script around it to batch convert a lot of my 
files.
	Mind you, the process was painful as the original map format is not supported 
by Imagemagick (ECW and SID) so had to use Oziexplorer to export and GIMP to 
trim and rotate.
	I could then put the corner co-ordinates through my script to generate the 
Xastir .geo file.

Ian
VK1IAN

> The datum shifts I see in my county are in the neighborhood of 90 to
> 100-something (105?) meters.  This shift is between NAD27 and
> WGS84/NAD83 datums.