[Therion] Aligned cross sections for multiple passages

[Tarquin Wilton-Jones]

> Do you have stations in all the sections?


I do not need this, but I could - I have tested and it would work with
multiple stations in the cross section.

I was planning to create the sections after exporting an XVI, rather
than using any existing cross sections (though it would of course be
nice to know if an existing cross section could be used - I am sure
other people wanting to do this will want to use existing cross
sections). I can in fact think of a way to use existing cross sections
like that, by copying and moving them into position with the exported
points, so it is not impossible. It would of course be nice if it were
easier, but I can work with it as it is.

> source “cystanog.th"
> export map -projection [elevation 355] -fmt xvi -output “centerline.xvi"


The biggest issue with this is that there will be 2500 stations in that
exported centreline. The cave is extremely linear, and when projected on
a bearing of 355 (which is what I need for the cross sections), they are
almost all in the same 3 locations. So many that it is almost impossible
to find the 3 stations I am interested in, and even harder to find the
splays that relate to them. See the attached images.

This is why I wanted to export only the 3 stations and related splays,
so I can actually see what to work with.

> If you use it as background image and create a scrap in which only those
> three stations and profiles will be defined and exported map with that
> scrap, you receive what you need. Not use point station in that scrap,
> and set its projection as none. I’m not sure what it will do with scale
> option in layout.
> 
> Then input the .th2 file with that scrap to .th file and use in plan
> scraps for section the name of that scrap as reference.
> 
> It should work.


Exactly what I was planning to do, yes. Good, so I am not insane :)
Thanks for confirming this technique.
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