10 Jun
2015
10 Jun
'15
12:35 p.m.
On 09/06/15 21:24, Martin Sluka wrote:
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.
They refer to it as EDM device, that is all I know, and the data comes out in the format of the previous emails, we have 2 known co-ordinates on the survey, one GPS one calculated from more traditional cave survey techniques Andrew