[Therion] Splays appearing when not selected

[Tarquin Wilton-Jones]

Hi Rhys,

> I have noticed something that I am not sure if it's a bug or not. I am
> trying to export a selected bit of a survey as a loch file:

>From my experience...
Lox file export will always select all of the survey that were imported.
It will generate walls using all splays. It will use all scraps to
enhance the passage walls, even if you do not select them. If they exist
in any surveys or subsurveys, they are used, no matter which survey or
map is selected.

I always assumed this was intentional behaviour.

Personally, I have wanted to be able to select the specific maps that
should be used for lox, since I may have more than one version of a
survey in my data - traces over an old low quality survey, and a new
high quality survey of the same cave. Lox export insists on trying to
merge both versions rather than being able to select just one of them.

Cheers,

Tarquin