[Therion] Calculation of LRUD from splays

[Markus Boldt]

Hi Tarquin, 
thanks for that very fast answer. 
And it looks like it will help. 
My Idea is to get "forgotten LRUD-Data by measuring in the cave" that I can do they into the Data-list of the scraps in Therion. I hope to get a better Loch-Modell with this additional data. 
Markus

-----Ursprüngliche Nachricht-----
Von: Therion [mailto:therion-bounces at speleo.sk] Im Auftrag von Tarquin Wilton-Jones via Therion
Gesendet: Dienstag, 30. April 2019 11:02
An: therion at speleo.sk
Cc: Tarquin Wilton-Jones
Betreff: Re: [Therion] Calculation of LRUD from splays

Hi Markus

Don't worry, your English is fine :)

Not sure why you would want to remove the useful splays, and replace them with limited LRUDs, but I assume you have a reason.

> is there a possibility to calculate LRUD-Data from splays? It would be 
> nice, if you have not measured LRUD at the point in the cave, but only 
> splays for drawing.


If you are starting with (simple) Survex files or PocketTopo data, Cave Converter can create LRUD data, and turn it into "passage" blocks (which are basically just LRUD data). It does it by taking the largest splay that appears to be perpendicular-ish to the passage, and works out its perpendicular size.

However, it is only an approximation, and it is not perfect. It also only understands simple Survex files or PocketTopo data - it cannot cope with Therion files. It cannot cope with data containing "data nosurvey", so you must use only the default "data normal". It also removes anything that it doesn't understand, so you lose your fixes and entrances.

But maybe it is useful enough for your needs:
http://wscc.darkgem.com/caveconverter/

Hope this helps,

Tarquin
_______________________________________________
Therion mailing list
Therion at speleo.sk
https://mailman.speleo.sk/listinfo/therion