[Therion] Which line are LRUDs perpendicular to?

[Martin Sluka]

Generate .xvi file and check it in map editor as background image.

Generally it is on "to station" perpendicular to survey from "from station“.

But you may define lrud on „from station“ simple as new data block: 

data normal station l r u d

In this case they are perpendicular to shot „from station“ to „to station“

Or you may define LRUD on beginning of shot and end of shot in the same time perpendicular to shot:

data normal from to L R U D

1 2 [l_1 l_2] [r_1 r_2] [u_1 u_2] [d_1 d_2]

m.s.


> 12. 12. 2015 v 18:14, Markus Boldt <markus.boldt at gmx.net>:
> 
> Hi, 
> it is only a thinking….
> If you began to servey a cave, you take your first LRUD-Data at the first point. So it must be in a way that Therion estimate the LRUD-Data at the point where they are taken from. 
> If not, then the first (e.g. A1 to A2 would only exist as a traverse line without definitions of the walls. 
> Greetings 
> Markus 
>  
>  
> Von: therion-bounces at speleo.sk [mailto:therion-bounces at speleo.sk] Im Auftrag von Bill Gee
> Gesendet: Samstag, 12. Dezember 2015 15:47
> An: List for Therion users
> Betreff: [Therion] Which line are LRUDs perpendicular to?
>  
> 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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