[Therion] How to calculate the volume of a cave

[Olly Betts]

On Wed, Aug 14, 2019 at 04:38:20PM -0500, Bill Gee wrote:
> Update:  After poking around a bit, I discovered that Compass will
> calculate cave volume based on centerline and LRUD data.  Doing that
> means I have to run a Windows computer (ugh!) and type in the survey
> data twice (double ugh!)  Fortunately the cave for which I need this
> is small.
> 
> Can this feature be added as a suggestion for future versions of Survex?

There's a ticket open already:

https://trac.survex.com/ticket/80

Julian sketched out what needs doing there, but didn't actually provide
a patch (or else I'd have applied it by now).

But Therion could do a better job here as it has the drawn passage walls
to work from.

Cheers,
    Olly