[Therion] Fix station point using only 2D

[Adam Pyka]

Hi all,

How to 'fix' the survey station point (to morph the cave plan) having
only 2D coordinates?

Using the radiolocation we get (with quite good accuracy) the station
point position which is about 150m beyond the estimated location we
get from surveying. So now I wanted to use this position to make a
correction to the main polygon. But the 'fix' command need a 3D coords
so how should I do that (no, there is no point to measure the depth by
radiolocation by some reasons).

Thanks in an advice,
Adam