[Therion] nosurvey needs the date it was not surveyed

[Bruce]

This is a trivial matter, but may be worth some discussion and perhaps
adjusting Therions behaviour sometime.

 

I have been moving 'data nosurvey' entries from the main survey centreline
into their own centrelines, so that, presumably (when I learn to use sql)
users will be able to interrogate the database and uniquely identify each
unsurveyed connection, when it was made and who 'explored' it.  (The
metadata gets distributed across the whole centreline if these are all put
in the same centreline).

 

The relevant data fields would seem to be 'explo-date' and 'explo-team' and
'date' would seem to be irrelevant, as 'date' is the survey date, and these
short passages have by definition not been surveyed.

 

If however, the overall survey has a coordinate system set, and the
particular centreline has a 'data <xxx>' block set as well, then Therion
will helpfully display a warning message;

 

"warning -- unable to determine magnetic declination for undated surveys"

 

It would seem to me that 'data nosurvey' is a special case that should not
trigger this warning. 

 

An example of how I am entering these in my overall cave survey file below.

 

Regards

Bruce

 

 

  #Unsurveyed Connections

  #==================   

centreline

  explo-date 2011.05.28 

  explo-team "This Caver" 

  explo-team "That Caver"

  explo-team "Bruce Mutton"

  #date 2011.05.28 #date needed to suppress 'undated survey declination'
error

  data nosurvey from to

  jg8.10 at jg ij3.44 at ij     #unsurveyed connection Train to Carpe Diem

  ig2.60 at ig IK10.21 at ik    #unsurveyed connection What Sump Lucky Cowboy

endcentreline

  

centreline

  explo-date 2012.03.24   

  explo-team "This Caver" 

  explo-team "That Caver"

  #date 2012.03.24 #date needed to suppress 'undated survey declination'
error  

  data nosurvey from to

  kb51.33 at kb2 ka50.4 at ka2  #unsurveyed connection in KA-KB-Conscious

endcentreline

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