Try to arange your surveys to a structure with several layers (“name spaces”).
Martin Odesláno z iPhonu 21. 4. 2019 v 5:58, Bruce Mutton <[email protected]>: > Tarquin > Have a look at > https://therion.speleo.sk/wiki/faq#how_do_i_specify_a_main_entrance_and_also_the_other_entrances > to find out more about specifying what is a cave and what is just another > entrance. > > To see what Therion is interpreting from your input, cave-list and > survey-list are a good compliment to the map output statistics. Surface > survey is not counted as cave survey, so the statistics are not reported on > map outputs. > Yes you do need to structure your data to define which trips belong to which > caves. I would also have an overall surface survey to contain all of the > surface trips. > Also, flags surface and flags not surface are required to distinguish cave > passage from from surface survey. I prefer to also make sure the surface > survey is in its own centreline (or own survey) if it is more than just once > or two legs. > > In general I find it preferable to keep surface survey for surface (including > isolated features like shafts), and create a new trip file for each cave. > This helps maintain a clear separation of data for subsequent survey > processing and statistics gathering. > > Bruce > Sent from my Samsung Galaxy smartphone. > > -------- Original message -------- > From: Tarquin Wilton-Jones via Therion <[email protected]> > Date: 19/04/19 06:33 (GMT+12:00) > To: [email protected] > Cc: Tarquin Wilton-Jones <[email protected]> > Subject: [Therion] How to get the right count for cave lengths > > Hi, > > I have nearly completed the total survey for the system I am mapping. In > total, there are a series of little caves (actually mines, but I will > stick with the word "caves" because it is clearer), a blind surface > shaft, and a couple of significantly long caves. In total, these were > surveyed over a series of 6 trips. On one of those trips, we surveyed > the surface, and any short fragments of passage that we encountered that > way. One of those fragments turned out to be one of the major caves. The > major cave's survey was subsequently completed on another trip, but its > first few metres are included in the surface survey. > > I am used to Survex. Each of the surveying trips has its own .th file: > > overall.th ("input"s all the other files) > surface1/surface1.th (contains the entrances to several fragments, and > the first 2 legs of cave 1) > surface2/surface2.th (contains the blind shaft's plumbed depth and some > other entrances) > cave1/cave1.th (does not contain any entrances, but is a long cave, > connected to the "cave 1 legs" in surface1.th > cave2/cave2.th (contains the first part of cave2, and its entrance) > cave3/cave3.th (contains cave3, with two entrances) > cave2ext/cave2ext.th (contains the second part of cave2) > > Cave1 is connected to cave2. > > Each entrance is marked using "station 2 Cave1 entrance" in the > centreline section of the file where it is defined. Survex only displays > aggregate statistics. Therion tries to identify "caves", which is a > concept I am not used to. > > I had hoped that Therion would be smart enough to see that caves are > connected to each other, and work out the connected lengths. But it > seems that it only works out the length of the files within the same > survey. Cave1 doesn't get any length. Cave2 gets only the length from > cave2.th - the length of the cave2ext and cave1 are not included. > > How do I make Therion realise what caves are connected? Do I need to put > them into a structure like this? > survey overall > survey cave1_2 -entrance 2@cave2 -name "Caves 1 and 2" > input cave1.th > input cave2.th > input cave2ext.th > endsurvey > endsurvey > > And if so ... how do I tell it that *part* of the cave lies within the > surface survey file? Do I need to split the surface survey up into > parts, one of which is the entrance to cave1? > > Separately, when using "statistics topo-length on", it ignores the > surface survey legs, which is quite unfair for the person who surveyed 1 > km of surface to link all of the entrances - they get no credit at all. > Can it be asked to include surface legs in the topo-length calculations > for survey credits? > > Thanks for any advice. > > Tarquin > _______________________________________________ > Therion mailing list > [email protected] > https://mailman.speleo.sk/listinfo/therion > _______________________________________________ > Therion mailing list > [email protected] > https://mailman.speleo.sk/listinfo/therion
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