Hi all,

I am trying to display the coordinates of the mouse pointer in an application (not 
MapInfo).  The map data is currently in AMG a Universal Transverse Mercator 
projection), and the sidplay is quite easy using trigonometry.  Unfortunately the 
users don't know about AMG coordinates so want the display in Lat/ Long.  I am trying 
to write some code to convert the coordinates to WGS84 lat/ longs at run-time.  The 
required accuracy for display only needs to be within a few meters.

I have found a conversion spreadsheet based on the Redfearn's formulae from the Auslig 
site that is quite complex (40 or so stages), that I will attempt to simplify to 
put it into code if it is the only way, but thought I would ask if anyone has already 
done this?  This also may be a bit complex for real-time conversion. The Auslig 
spreadsheet is for GDA, but as I understand it, I just have to use a different 
ellipsoid and flattening factor.

Am quite happy to provide the code snippet to anyone once I have completed it.

R


Robert Crossley 
Neo Software
9 Short St
New Brighton NSW 2483
AUSTRALIA

P: 02 6680 1309
F: New Connection
M: 0419 718 642
E: [EMAIL PROTECTED]




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