[Therion] Absolute Clino reading

Andrew Atkinson andrew at wotcc.org.uk
Wed Apr 17 18:57:16 CEST 2013


Hello

I have been forced to use a total station for some of the cave surveys I
am doing due to the amount of metal/electricity in the cave.

The total station records absolute angles, (in degrees and minutes)
which therion does not process. So 320 should be interpreted as -40

therion: error -- Entrance.th [53] -- gradient reading out of range --
321:49

however a quick check and survex does, but gives a warning, should
Therion not also do this, it would save me having to do a tedious
conversion.

(Survex does not understand degrees and minutes but that is not really
relevant)

Example part of the file


1.0  1.1  1.56  -  up  0 is steel pin in tarmac, first 4X marking
#Tony's notes, azi and bearing swapped, but as this is the DistoX leg,
it must be the corrected version
#1.1  1.2  38.463  87:52  90:22  2 is Coxs Entrance
#corrected version form DistoX [AA: April 13]
1.1  1.2  38.463      90.2          3
1.1  1.3  18.132  137:38  83:07  3 is Ladye Chapel Entrance & WIS fixed
point
1.2  -  1.428  247:57  321:49  to top of arch
1.2  -  1.06  248:04  88:17
1.2  -  1.271  69:11  321:27
1.2  1.4  1.55  -  down  to nail in pavement
1.2  1.5  11.360  152:40  2:02
1.5  -  3.327  325:35  332:05
1.5  -  2.189  194:30  314:59
1.5  -  3.886  113:49  64:35

thanks

Andrew



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