[Therion] combining several lox files

[Benedikt Hallinger]

Hm, can i display the coordinates of entrances somewhere in loch? survex 
shows the coordinates of the stations / mouse pointer.
Maybe the dataset i have received is not georeferenced at all; i just 
guessed it because i see coordinates on rendered therion maps of the caves, 
but of course this could also be just an arbitary string in the compiler 
file.


Am 2017-04-21 12:39, schrieb Graham Mullan via Therion:
> Benedikt Hallinger said:
>
> " the last problem now is, that the surface lox is in a different 
> coordinate system than the caves (EPSG:31468 vs. lat-long) :/ I hoped loch 
> would recognize this and recalculate as appropriate, but that was not the 
> case. Is there some option to convert conveniently?"
>
> I have never used Lat/Long but I do have a quite extensive data set that 
> uses two different EPSG numbers, one UTM - and I think there's an IOS or two 
> in there somewhere but cannot find them quickly - and this has generated a 
> lox file that seems to have put everything in the right places. I have only 
> ever seen "computer says no" messages when there have been sections where 
> the co-ordinate system had not been specified at all.
>
> I'd be wary about stating the cs in your thconfig file as that will clash 
> if a different cs has been used elsewhere in the data set, I think.
>
> Graham
>
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