Martin Spott wrote:
> Please enjoy the latest update to the Landcover Mapserver and the
> underlying database. Visit:
>
> http://mapserver.flightgear.org/
>
> .... enter the ICAO identifier of your favourite airfield and explore
> our landcover data.
As a by-product I added a function to calculate the distance between
two airfields, given by ICAO codes.
This is available from the start page as well. I didn't care for
beauty but only focused on a method that works if used correctly (for
exmaple there's no error-handler that makes a nice message on
non-existent ICAO codes ....).
The calculation is supposed to be 'exact' by taking the WGS84 ellipsoid
into account.
There's no magic in this gimmick, this is a (rather complex to use)
function that PostGIS offers when you store the locations as real
POINT-geometries instead of simple pairs of lat/lon numbers.
Have fun,
Martin.
--
Unix _IS_ user friendly - it's just selective about who its friends are !
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