I don't think that this is UTM. UMT has usually 7digits in y-direction and 6 in x-direction.
Wolfgang Philip Balister schrieb: > Olly, > > Just for your info the 3d file Philip Schuchardt is working with has > the coordinate system for the cave set up so the station coordinates > are also the UTM coordinates. This makes overlays easy with > geo-referenced surface maps. This would explain why the x,y numbers > are large. > > Philip > > Olly Betts wrote: >> On Tue, Mar 14, 2006 at 08:19:36PM -0500, Philip Schuchardt wrote: >> >>> 10> Vertical range = 42949672.68m (from 20 at 42949672.68m to 21 at >>> 0.00m) >>> 11> North-South range = 42949672.86m (from 495 at 42949672.86m to 21 >>> at 0.00m) >>> 12> East-West range = 42949672.91m (from 15 at 42949672.91m to 21 at >>> 0.00m) >> >> >> This looks like some weird coordinate wrap-around, since 42949672.91m is >> 0xfffffffb cm, which is -5cm if interpreted as a signed value. >> >> I think the problem must be in the data being fed into Survex, since >> Survex itself doesn't store coordinates in integer cm until after this >> point (they're used to store coordinates in the .3d file). >> >> Cheers, >> Olly >> _______________________________________________ >> Therion mailing list >> Therion at speleo.cz >> http://www.speleo.cz/mailman/listinfo/therion > ------------------------------------------------------------------------ > > _______________________________________________ > Therion mailing list > Therion at speleo.cz > http://www.speleo.cz/mailman/listinfo/therion >
