Hi Jonny,
I cannot guarantee the strategy is right, I went to high school in the '90ies, in a system which emphasised mainly on “trial & error”.
I did find out about the Y justification, unfortunately this doesn’t exist for columns.
The idea is to asses the asses the work of the surveyor at once, and to be able to do a re-run on a tweaked origin.
We have two identical buildings to be surveyed, and we want to have an equalised cavity so the charges on the anchors are equally spread.
For the interpretation of the deviation I would like to make a heat-map.
Ant then there is the columns…the are rotating in all directions.
I would like to get their orientation from the spreadsheet, or otherwise from the adjacent structure