Curtis L. Olson writes: > Norman Vine writes: > > David Megginson writes: > > > > > > Norman Vine writes: > > > > > > > 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. > > > > > > Maybe *too* accurate -- at the resolution, a 747 parked on the field > > > will start to show up in the elevations, not to mention large hangars > > > and the terminal buildings. > > > > Whatever, the point is try preinserting some points for the airports > > I think you will be pleasantly surprised :-) > > I would worry that preinserting points would yield spikes whenever the > FAA surveyed elevation differs from the SRTM data ... in otherwords > imagine the SRTM surface with spikes whereever we place our > "pre-inserted" points.
Agreed this is why I suggested using the higher res SRTM data in the vicinity of the airports Cheers Norman _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
