Re: [Therion] co-ordinate problem

On Wed, May 13, 2009 at 2:11 PM, Andrew Atkinson <andrew@wotcc.org.uk> wrote:

import GB.3d -surveys use -cs EPSG:27700 -calibrate [0 0 0 300000 100000 0]

however generating the kml file and looking at it on google earth, the entrance has moved 90 metres on a heading of 078 degrees (and I assume the rest of the cave)

EPSG:27700 included in therion does not define datum shift between Airy and WGS84 ellipsoids. We will update proj4 library for the next snapshot.

trying 4277 crashes my machine with a memory unaddressable error

Could you send some minimal data example + platform description? Martin