Curtis L. Olson wrote: > Innis Cunningham wrote: > > Just wondering if the problem of raised or sunken runways in all > > parts of the world other than the US can be fixed or will it not be > > possible till the rest of the worlds data matches the US data. > > Could you send me an example or two or three of airports that are > especially glaringly wrong? I hope to dig into this problem in the > upcoming week to see if I can get to the bottom of it.
I've never looked carefully at the terrain generation code, but it strikes me like it should be relatively straightforward to come up with a "smoking gun" case where a published runway elevation clearly doesn't match the corresponding terrain data. In such a case, we're basically SOL. We have to trust one or the other. Even in the best case, we'd have to use a smoothing algorithm or somesuch, which is (by definition) going to visibily change the local terrain details. My hope, I guess, would be that the data difference would lead to an "Oh, duh!" moment where we realized that they were in different projection datums, or run through a transformation with a broken constant (remember the old WGS84 stuff had a few bugs) or something like that. :) Andy _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
