[Therion] Shape files import comes up in the wrong location in QGIS

[Andrew Atkinson]

Hello

With Xavier promising great things with style sheets for shp files ;-)
I thought I should take a look at using shp files.

I'm making progress with QGIS, it is a little confusing, so there are so 
many  things I could have done wrong, plus I still really do not know 
what to search for when something does go wrong.

On QGIS I've successfully imported therions kml file and the 3d produced 
using

https://github.com/patrickbwarren/qgis3-survex-import

Both of these appear about where I would expect them.

When I import the .shp as a directory I'm given 4 options I don't really 
understand.
However it appears in the sea, off the coast of Africa, I can change the 
projection CRS, but then it is still off the coast, but this time near 
the Silly Isles, so close to 0,0 for the OSGB grid. Which suggests to me 
that the file contains local co-ordinates of the map square ST which is 
how I inputted them.

So why do the kml and the 3d import work in the right place and the shp 
not work? What am I missing?
I'm sure this must have come up before in the mailing list, however, I 
cannot find it!

I'm using

http://www.cave-registry.org.uk/svn/CheddarCatchment/Goughs/

the thconfig_plan file

Has been edited locally to have the following exports

export map -proj plan -layout local -o Goughs_Plan.pdf
export map -proj plan -layout local -o Goughs_Plan.kml
export map -proj plan -layout local -o Goughs_Plan.bbox
export map -proj plan -layout local -o Goughs_Plan.shp
export model -o Goughsth.3d

Andrew