Hi,

survey selection was really ignored when splay shots 3D models were exported. I hope, it is fixed in 5208297. Thanks again for finding out Rhys, that it was just a splay shots issue!

Tarquin, did you know, there is a "-walls off" option for scrap? It was designed specifically for this purpose. To turn off wall generation from unwanted scraps - low-quality surveys in your case. Or is there some problem with using it? OK, you have to specify it for every scrap, maybe it should be also supported for maps. Would it solve your problem?

The original idea was to generate walls from all available information (centreline lrud, splays, and scraps) in the given survey. It is not yet fully implemented but still remains a goal. Therefore selection by surveys and not by maps. Selection of scraps in selected surveys for 3D export works I assume.

On Tue, 19 Jan 2021 at 15:48, Tarquin Wilton-Jones via Therion <therion@speleo.sk> wrote:

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
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