David Megginson writes: > Norman Vine writes: > > > 2) is a little more complicated but we allready have a good start > > if we leverage the Scenery directory structure > > Agreed. > > > I suggested using a quadtree for each 10x10 degree block > > but there are spherical indexing methods that might be better > > in that there is no cos(lat) shrink factor to account for when doing > > range lookups. > > Remember Knuth's (?) warnings about premature optimization,
FWIW IMHO We really should move the entire scennery DB into a spherically oriented scheme. It would be quite easy using the spherical indexing method in the link that I posted and then we wouldn't need any index other then the directory tree and-you-could-fly-over-poles'ly Norman Norman _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
