[Therion] Training Course Guide for Therion from the UKCaveSurveying Group

Martin Sluka martinsluka at mac.com
Fri Jun 15 10:10:41 CEST 2012


You are right, Bruce. This is good example. But in fact there were 3 or better 4 surveying trips in this surveying trip. I such case it is natural to divide one day survey trip to particulate surveys. ;)

m.

On Jun 15, 2012, at 09:57 AM, Bruce <bruce at tomo.co.nz> wrote:

<Martin wrote
>The original idea of Therion is that "survey" represents one survey trip. … So it is not the best idea to manipulate with surveys. 
 
I agree Martin, one survey file, one trip.  However we just did a survey of three small multi-entrance caves and overland surveys over a couple of days.  In hindsight we were a bit messy in practice as we surveyed into one cave and out of another entrance and into another cave, then back out to the first cave etc etc. 
 
What I found was that Therion could not (or I could not get Therion to) adequately resolve the statistics for the caves individually until I split some of those surveys into two or three.  It also would not separate surface survey statistics from cave statistics (but I think that is a bug).  Statistics are resolved correctly for maps but not for survey-list.
 
So as a last resort I cut the survey trips into multiple surveys/files.  If I had drawn the scraps before doing this I would have had a difficult job patching it all back together.  An unusual situation perhaps, but one where manipulation of the survey files was able to lay a better foundation on which to build scraps and maps.
 
Bruce
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