Is it theodolite surveys? Or total station, or⦠But as I know, there should be min. two reference points with known coordinates to connect such surveys to. Or use special GPS with precision of 1-2 cm.
Is it this case? m. > 9. 6. 2015 v 15:25, Andrew Atkinson <andrew at wotcc.org.uk>: > > every few years I get data in a land survey format, which often does not > use a magnetic survey but a turned through angle (does it have a proper > name?) I guess it is not that easy, otherwise this sort of think usually > gets done.
