[Therion] Survey Data Format - backclino

Bill Gee bgee at campercaver.net
Tue Aug 14 17:54:08 CEST 2018


I find this behavior annoying too!  It is not logical to support "-" for 
missing backcompass but not for missing backclino.

Martin's method is one way.  I find it a bit cumbersome because you have to 
add TWO data lines to the file.  The first line removes backclino, the next 
line is the data, and the next line restores backclino.

My preference is to add one line, which is a comment that says the next line 
has a fake backclino entry.  Then I simply make up the backclino entry as 180 
degrees from the forward compass.

I have worked some surveys with shots that have the opposite problem ...  The 
backclino exists but the forwardclino is missing.  Same solution - I make a 
comment and then dummy up the reading.

This method also makes it easier for someone else to read through the data 
since every line has exactly the same number of items and in the same order.

-- 
Bill Gee



On Tuesday, August 14, 2018 8:48:13 AM CDT Martin Sluka via Therion wrote:
> Simplest way is to add new definition line each time you change the oreder
> of data. Each line of data may have it’s data definition:
> 
> data normal from to left right up down tape compass backcompass clino
> backclino
> 
> …………
> 
> data normal from to left right up down tape compass backcompass clino
> 
> ………….
> 
> data normal from to left right up down tape compass backcompass clino
> backclino
> 
> …………..
> 
> Martin
> 
> > 14. 8. 2018 v 14:58, Torsten Schnitter via Therion <therion at speleo.sk>:
> > 
> > Hi List
> > 
> > I'm using this data lines for survey:
> > data normal from to left right up down tape compass backcompass clino
> > backclino
> > 
> > In general all data is available, but in some point I have some missing
> > data like LRUD, Compass/Backcompass or Clino/Backclino. When I have
> > missing LRUD data or missing backcompass I put in  a minus "-" and this
> > is OK. But when I use "-" for backclino I get an compilation error:
> > 
> > reading source files ...
> > C:\Program Files (x86)\Therion\therion.exe: error -- ....filename.... --
> > invalid backwards gradient reading -- - writing xtherion file ... done
> > 
> > Is this a bug? Because for LRUD and Backcompass minus sign  is working
> > fine. What sign can I use for missing backclino readings?
> > 
> > regards,
> > Torsten
> > 
> > _______________________________________________
> > Therion mailing list
> > Therion at speleo.sk
> > https://mailman.speleo.sk/listinfo/therion






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