Chris lists at
Tue Jul 8 19:58:40 CEST 2008

Al Johnson wrote:
> It would be very easy to take the formulae from the spreadsheet in javascript. 
> Alternatively you can use it directly in the script if you glue in the calcs 
> in perl to calculate $posx, $posy and $posz as below. Variable $posacc is the 
> estimated accuracy of the supplied location in m.
>     ## WGS84 constants
Someone has already done this:

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