I designed a UK symbol set for just this purpose. You can pull a copy from the British Caving Association registry where I (and many other UK cavers) publish and share our data. See the gb_layout.thc file in the Wookey Catchment repo:
http://www.cave-registry.org.uk/svn/WookeyCatchment/ My project in that catchment is Swildons. So if you want to see how I include it in a Therion project just download the data set and process the thconfig-swildons_ent Therion project file in the Swildons folder. Footleg On Mon, Aug 14, 2017 at 11:36 PM Wookey via Therion <therion@speleo.sk> wrote: > On 2017-08-14 11:51 -0700, Rob Countess via Therion wrote: > > > It would seem like a break in tradition to use a different symbol for > mud. I've > > been surveying caves for 20 years with this symbol. As far as I > understood, we > > were using British mapping symbols because of the large number of British > > cavers like Mike Boon and Tich Morris, and others who came over because > of > > Derek Ford at McMaster University. I used to have a huge list of symbols > with > > this mud symbol included, I can't find anything to back this up several > pages > > deep on google. You will notice that the UIS calcite symbol is exactly > the mud > > symbol in Canada whereas our calcite symbol is connected scallops. Not > sure if > > this is based of some now defunct british symbols set. > > You don't have to draw your caves with the UIS sysmbol set. You can > choose a different symbol-set if you prefer. As you say, the lack of a > 'mud' sysmbol is a bit difficult for cavers of a UK mindset, but the > UIS logic in just defining sediments by particle size does make some > sense. > > Therion is quite happy for you to specify any sysmbol set you like, or > to add a few extra sysmbols. (Most UK surveyors can't really get by > without the 'slope arrow' symbol for example) > > Wookey > -- > Principal hats: Linaro, Debian, Wookware, ARM > http://wookware.org/ > _______________________________________________ > Therion mailing list > Therion@speleo.sk > https://mailman.speleo.sk/listinfo/therion >
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