David Megginson writes: > > Curtis L. Olson writes: > > > For what it's worth, when I was looking into this, I found some > > examples of runways with their ends literally at least 100' different > > in elevation. Most aren't nearly that far off, but there are a > > few. > > For a 10,000 ft runway, that would require less than a 1% continuous > grade, so it's not all that surprising. > > It will be a very good thing when we can take threshold elevations > from FAA and DAFIF data. The SRTM/DEM data, however, is just too > coarse -- that's why I'm suggesting flattening for now.
Have you tried preinserting some of the the higher res srtm1 data to terra innide of and on the edges of the airport polygons ? This shoud be quite accurate. Cheers Norman _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
