[Therion] Which line are LRUDs perpendicular to?
Bill Gee
bgee at campercaver.net
Sat Dec 12 15:47:18 CET 2015
Hello everyone -
The recent discussion about LRUDs brings up another question I have. Take
some example data ...
========
data normal from to tape compass clino backcompass backclino left right up
down
# Main survey shots
A1 A2 8.4 72.5 -52 252 +53 3 5 3 6
A2 A3 6.7 67 -10 248 +10 2.2 1 2 1.4
A3 A4 48.0 28 +2 208 -1.5 4 5 0.7 1.1
========
For each shot the LRUD data is taken at the "to" station. Does Therion assume
this data is perpendicular to the line going to the next station? Or is it
perpendicular to the line coming in from the previous station?
At station A2 - Does Therion treat the LRUD data as perpendicular to A1-A2 or
as perpendicular to A2-A3?
Thanks - Bill Gee
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