The Therion book p20 has this
data <style> <readings order> ◃ set data style (normal, topofil, diving,
cartesian,
cylpolar, dimensions, nosurvey) and readings order. Reading is one of
the following
keywords: station, from, to, tape/length, [back]compass/[back]bearing,
[back]clino/
[back]gradient, depth, fromdepth, todepth, depthchange, counter,
fromcount, tocount,
northing, easting, altitude, up/ceiling4, down/floor, left, right,
ignore, ignoreall.
See Survex manual for details.
So trying this (from the survex manual v1.0.39)
data nosurvey from to
1 3
As found in the 2 sample files (the actual connection would require a
large dataset to be sent)
The survex one produces a triangle, as I would expect the therion file
gives the error
unsurveyed shot between unfixed stations
(adding a fix for station 1 and 3 gives the same error)
So this is acting differently from survex, or possibly does not work at
all (or I just have got it wrong again!)
thanks
Andrew
PS expect an email on passage dimensions in centrelines, as that is
really what I am working on, this was a little diversion