<div dir="ltr">If you generate kml output then you can read the lat-lon for any station from that.<div>If you generate survex 3d output then you can read the coordinates of any station in the Aven viewer (part of the Survex install) in the grid coordinate system you defined for the data.</div>
<div><br></div><div>Footleg</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On 3 June 2014 07:42, Bruce <span dir="ltr"><<a href="mailto:bruce@tomo.co.nz" target="_blank">bruce@tomo.co.nz</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy">JP<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy">As a hack, how about temporarily making
the survey station near the debris an entrance. Then an export to a
cave-list will give you the coordinates directly.<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy">Eg<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy">export cave-list \<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy"> -location on \<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy"> -surveys off \<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy"> -output
../Output/MiddleEarthcaves.html<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy">Or of you use .kml extension you get a
Google Earth file directly.<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy">I’m assuming you want the easiest
way to walk to the surface location directly above the cave, and have a gps
unit into which you can enter these as way points. Re-reading you
question that might not be what you want.<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy">There might be other approaches using
continuation flags, and or obtaining the coordinates from an sql export or from
a model export to .3d and use Aven to obtain coordinates.<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy">Bruce<u></u><u></u></span></font></p>
<p class="MsoNormal"><font color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy"><u></u> <u></u></span></font></p>
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<p class="MsoNormal"><b><font face="Tahoma"><span style="font-size:10.0pt;font-family:Tahoma;font-weight:bold">From:</span></font></b><font face="Tahoma"><span style="font-size:10.0pt;font-family:Tahoma">
<a href="mailto:therion-bounces@speleo.sk" target="_blank">therion-bounces@speleo.sk</a> [mailto:<a href="mailto:therion-bounces@speleo.sk" target="_blank">therion-bounces@speleo.sk</a>] <b><span style="font-weight:bold">On Behalf Of </span></b><a href="mailto:McLendonJP@aol.com" target="_blank">McLendonJP@aol.com</a><br>
<b><span style="font-weight:bold">Sent:</span></b> Tuesday, 3 June 2014 9:17
a.m.<br>
<b><span style="font-weight:bold">To:</span></b> <a href="mailto:therion@speleo.sk" target="_blank">therion@speleo.sk</a><br>
<b><span style="font-weight:bold">Subject:</span></b> [Therion] How to locate
points on the surface above a surveystation?</span></font><u></u><u></u></p>
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:12.0pt"><u></u> <u></u></span></font></p>
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<p class="MsoNormal"><font color="black" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:black">I would appreciate any suggestions
regarding the best (easiest, quickest) way to locate points on the surface that
directly overlie survey stations in the cave. For example, suppose we find a
place in the cave with surface debris and would like to examine the surface
directly above for an entrance or dig. The ideal solution would allow me to
input surface survey data in the field using a laptop and would generate an
azimuth and distance from the last station to the desired point. I've sometimes
overlayed the cave map or lineplot onto a topo or satellite image to identify
the general area, but I'm looking for a much more precise
solution. Currently, I survey overland from the entrance toward the
area overlaying the station I want to get above. As I get close,
I temporarily rename the last surface survey station to the name of the
station in the cave below. This tells Therion that I've closed a loop and
it gives me the closure error in all three axes. The x and y axis tell me
how close I am, and I can guesstimate an approximate azimuth for the next shot
to get closer. This eventually gets me close, but it is subject to blunders and
overly time consuming. Is there a better way, perhaps through some
function of Therion with which I am unfamiliar? Thanks for any ideas.<u></u><u></u></span></font></p>
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<p class="MsoNormal"><font color="black" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:black"> <u></u><u></u></span></font></p>
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<p class="MsoNormal"><font color="black" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:black">JP<u></u><u></u></span></font></p>
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