wolfgang.zillig at web.de
Thu Dec 20 14:43:18 CET 2007
I've just changed one input file from survex format to therion format to
get the LRUD data into the model. The declination is corrected manually
by "declination xx degree" within the centreline. I've noticed that I
had to change the prefix from "-" (minus) to "+" to get the same result
as with survex. In survex it is done by "*calibrate declination xx".
It would be nice to add a comment in the Therion book that declination
correction is opposite from Survex.
More information about the Therion