Peter Brown wrote:

> I see.  So that brings us back to magnetic vs true, as I was
> originally referring to.  But, that's somewhat irrevelant as it
> _appears_ the mpmap is sourcing the data from the actual runway
> placement.

....  or from the navaids.

> My opinion is there should be an data file with the
> correct info to be displayed, and it seems logical for it to be the
> navaid file, but we'd need to add a line if they want to keep the
> true heading.

"They" are certainly going to keep the true heading in the navaid file,
because the magnetic heading is changing permanently and therefore is a
moving target. The navaids collection is meant to place the navaids at
their proper location in an unambiguous way - which obviously is the
true heading.

BTW, feel free to use this service if your're looking for slightly more
complete airfield data:

  
http://mapserver.flightgear.org/ms?Service=WFS&Version=1.0.0&request=GetFeature&Typename=apt_airfield&MaxFeatures=1&Filter=<Filter><PropertyIsEqualTo><PropertyName>icao</PropertyName><Literal>KBTV</Literal></PropertyIsEqualTo></Filter>

....  still processing.

Cheers,
        Martin.
-- 
 Unix _IS_ user friendly - it's just selective about who its friends are !
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