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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>As far as I can tell all <st1:country-region
w:st="on"><st1:place w:st="on">New Zealand</st1:place></st1:country-region>
cave surveyors use the convention that the lrud data refers to the ‘from’
station (unlike Therion).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Mostly because the preprinted survey paper
pads we use lead people to this way of doing it.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>When learning to use Therion I pretty
quickly moved to the solution 2) suggested by Martin below. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The advantage is that users are certain
about which station the lrud applies to, and the amount of potentially
confusing data on each line is reduced. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The disadvantage is that when there are
multiple legs from each station, Therion does not know which leg to apply the
lrud to.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Personally I am happy with this limitation,
however a ‘lrud-station [to|from]’ statement would provide
some flexibility and clarity without the need for new users to refer to The
Therion Book quite so much.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Bruce<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<hr size=2 width="100%" align=center tabindex=-1>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
therion-bounces@speleo.sk [mailto:therion-bounces@speleo.sk] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Niklas Konstenius<br>
<b><span style='font-weight:bold'>Sent:</span></b> Saturday, 23 July 2011 10:43
p.m.<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">List
for Therion users</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Therion] Odd
behavior exporting map using LRUD's</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>> 1. use [from to] syntax:<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Thanks for the tip. This method however forces us to write the LRUD
measurements in the data files twice. This redundancy in the data is not a good
thing as I see it.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>It would be very nice if therion could have an option to define which
station the LRUD's belongs to. For example:<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<div>
<div>
<p class=MsoNormal><font size=3 face=monospace><span style='font-size:12.0pt;
font-family:monospace'>centerline</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-tab-span><font size=3 face=monospace><span
style='font-size:12.0pt;font-family:monospace'> </span></font></span><b><font
face=monospace><span style='font-family:monospace;font-weight:bold'>lrud-station
from</span></font></b><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-tab-span><font size=3 face=monospace><span
style='font-size:12.0pt;font-family:monospace'> </span></font></span><font
face=monospace><span style='font-family:monospace'>data normal from to
length compass clino left right up down</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-tab-span><font size=3 face=monospace><span
style='font-size:12.0pt;font-family:monospace'> </span></font></span><font
face=monospace><span style='font-family:monospace'>a b 10 90 0 2 0
2 0</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-tab-span><font size=3 face=monospace><span
style='font-size:12.0pt;font-family:monospace'> </span></font></span><font
face=monospace><span style='font-family:monospace'>b c 10 90 0 0 2
2 0 </span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span class=apple-tab-span><font size=3 face=monospace><span
style='font-size:12.0pt;font-family:monospace'> </span></font></span><font
face=monospace><span style='font-family:monospace'>c d 10 90 0 2 0
2 0</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face=monospace><span style='font-size:12.0pt;
font-family:monospace'>endcenterline</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
</div>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Or is it so uncommon to get LRUD from the FROM station that this
functionality is not needed?<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>/niklas<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On 23 July 2011 08:21, Martin Sluka <<a
href="mailto:martinsluka@mac.com">martinsluka@mac.com</a>> wrote:<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
On 23.7.2011, at 1:10, Niklas Konstenius wrote:<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
a b 10 90 0 2 0 2 0<br>
b c 10 90 0 0 2 2 0<br>
c d 10 90 0 2 0 2 0<br>
endcenterline<br>
-----<br>
Since LRUD is measured at from-station this data indicates that station a and c
is positiond at the right cave wall and station b is positioned at the left
wall (station d is undefined).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Therion in this case use LRUD on TO station - default behavior.<br>
<br>
If you need LRUD on FROM station you may:<br>
<br>
1. use [from to] syntax:<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
<br>
data normal from to length compass clino left right up
down<o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> a b 10 90 0 [2 0] [0 2] [2 2] [0 0]<br>
b c 10 90 0 [0 2] [2 0] [2 2] [0 0]<br>
<br>
2. station left right up down<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
<br>
data normal from to length compass clino<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> a b 10 90 0<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> b c 10 90 0<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
c d 10 90 0<o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>station left right up down<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
<br>
a 2 0 2 0<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> b 0 2 2 0<o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> c 2 0 2 0<br>
<br>
m.<br>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
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