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<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'>Just want to check on the
recommended way to manage survey accuracy within Therion.<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'>I have a hierarchal dataset
with a three cave system, set up with index and configuration files so that I
can compile any individual or combination of the caves. I’m about
to expand the dataset to accommodate perhaps a dozen caves, and many more minor
holes / karst features. Likewise they will need to be compiled
individually or in sets. To date I have not included ‘grade’
or ‘sd’ statements in my survey.th files, except for
‘sd’ statements where I know the survey quality is really poor.<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'>Recently I have put together a
single top level grades.th file, and referenced this in my top level index
files only. <o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'>I assume that the
‘correct’ way is to apply a grade statement(and infer plumbs
on/off) in each and every low level survey-endsurvey block.<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'>Instead, I have cheated
perhaps, by adding a grade statement (and infer plumbs on) to
AllThreeCavesSystemINDEX.th. If I then add a grade statement in one of
the sub-surveys, am I potentially changing the grade applied by Therion to the
whole cave system?<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'>I’m not sure, but I seem
to be getting odd results, in that the corrections applied to different parts
of loops do not seem to respond to changes as I expect. I’m not
sure of the scope implied by the last sentence in this extract from the Therion
Book.<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'>"<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'>grade <grade list> . Sets
standard deviations according to the survey grade specification (see grade
command). All previously specified standard deviations or grades are lost. If
you want to change an SD, use the sd option after this command. If multiple
grades are specified, only the last one applies.<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'>"<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'><o:p> </o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'>Any suggestions on where I
should be putting grade statements?<o:p></o:p></span></font></p>
<p class=MsoPlainText><font size=2 color=black face="Courier New"><span
lang=EN-NZ style='font-size:10.0pt;color:black'>Bruce<o:p></o:p></span></font></p>
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