[Therion] Mining specific needs (was: Introduction and question about join-syntax)

[Christian Rößler (Roessler)]

Am Mittwoch, 14. November 2007 19:14 schrieb Thierry Gonon:

Hi Thierry,

> I'm a french user of therion and use it for caves and also ancient mines
> as I'm an archaeologist specialised in this domain. I think it could be
> interesting to share our practise with this software, to see what feets
> well our needs and we specially need...

This would be a very good idea! But you (and other miners here) are surely way 
more experienced with Therion than I, and while I learn fast it will take 
some time until I have interesting things to share. But that time will come 
soon as I have always a mine to survey, and I plan to do the work with 
therion.

And I must confess that I have not the foggiest thought what the differences 
in surveying needs between caves and mines are, as I explored many mines but 
never a cave.

Also I am of course unsure whether my needs or problems now (as a beginner) 
are trivial to solve with therion or are mining-specific in that sense. 
Currently I am anyway stuck as I have problems to generate .pdf files showing 
outlines and generally make pdf's to my liking (while  eg. 
<http://www.nabble.com/Printing-xvi-maps-t4757317.html> helped a bit).

Another problem that comes to my mind is that I have no idea to cope with the 
following eg.: I took lrud measurements along a mine galley, and noticed the 
endpoint of the measuring tape being badly placed. So I took a point, like 
"45cm to the right (in right angle to tape)", and continued with the next 
'line of tape' (polygon stroke?) from there. So I have a piece of 'ghost 
centerline' I do not know how to get rid off that also counts in length of 
the mine, so to say. Any suggestions here would be most helpful as I have 
more surveying data involving such cases.

Well, a great help would be if anyone could point me to an example of a 
therion example of a small mine with just a shaft and some galleys (or give 
me one; I would of course only use it personally as an example). I have some 
difficulties with applying the examples at 
<http://therion.speleo.sk/download.php> to my first mine.

Greetings,
Christian
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