I requested Survex to be modified to have theodolite turned horizontal angles but there have been other priorities.
I have input LIDAR data as Theodolite data into Survex by using the horizontal circle readings as compass readings and then modify the compass calibration value for each station LIDAR data only until the horizontal angle matches the known or calculated magnetic compass reading between the instrument setup station and the initial reference object. You can get some very large compass calibration values. Theodolite vertical circle angle is usually 0 at Zenith with horizontal readings at 90 and 270 depending upon which face (Left or Right) the theodolite has been used to collect the data. Use excel to create inclinometer values. Appreciate that the above is not ideal and was very time consuming but it allowed me to get the Gaping Gill LIDAR data into Survex. Kevin On Wed, Jun 10, 2015 at 2:26 PM, Markus Boldt <markus.boldt at ratiopharm.de> wrote: > Hi all, > if you use a theodolite, you will have also an vertikal angle. So this is > to calculate too. I would use Excel for the calculation - or not? To > calculate the Data you have to write them in a table anyway. > Greetings > Markus > > > > -----Ursprüngliche Nachricht----- > Von: therion-bounces at speleo.sk [mailto:therion-bounces at speleo.sk] Im > Auftrag von Graham Mullan (External) > Gesendet: Mittwoch, 10. Juni 2015 13:30 > An: therion at speleo.sk > Betreff: [Therion] Turned through Angle Survey > > Martin > > I think Andrew is referring to a Total Station survey, though I presume > that data from an old fashioned theodolite would look much the same. What > he needs, I guess, is an automatic way of correcting (calibrating?) the > horizontal angles with regard to North when the traverse is connected in to > fixed points at either end. > > Graham > > This message is intended solely for the designated recipient(s). It may > contain confidential or proprietary information and may be subject to > attorney-client privilege or other confidentiality protections. If you are > not a designated recipient you may not review, copy or distribute this > message. If you receive this in error, please notify the sender by reply > e-mail and delete this message. Thank you. > > > Diese Nachricht ist nur für vorgesehene Empfänger bestimmt. Die Nachricht > kann vertrauliche oder persönliche Informationen enthalten und kann > datenschutzrechtlichen Bestimmungen unterliegen. Wenn Sie kein vorgesehener > Empfänger dieser Nachricht sind, ist es Ihnen untersagt, die darin > enthaltenen Informationen einzusehen, zu vervielfältigen und zu > veröffentlichen. Sollten Sie diese Nachricht versehentlich erhalten, bitten > wir Sie, den Sender zu informieren, indem Sie auf diese Nachricht antworten > und die Nachricht dann löschen. Vielen Dank. > > _______________________________________________ > Therion mailing list > Therion at speleo.sk > http://mailman.speleo.sk/mailman/listinfo/therion > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.speleo.sk/pipermail/therion/attachments/20150610/83c2217c/attachment.html>
