OK, as I've not got anywhere with this, is there a way to ignore the coordinates in a survex 3D file, and instead fix a survey station to a point where I define the position and coordinate system in my therion file, and associate a station in my Survex 3d file with that point? The problem I have is that I am using existing survex .3d files where all the coordinates are in UTM30 European 1979 Datum. This is not the same as the more common WGS84 Datum. So I cannot set the coordinate system for my .3d file directly.
You can hopefully see what I am trying to do here: survey LosHoyos #fix 1.0 41.234567 -3.21012 213 import 0072.3d -surveys use #-cs EPSG:32230 endsurvey I am importing an existing survey centreline from the .3d file. I cannot assign this a coordinate system directly as Therion does not support the coordinate system I need. So instead I define the point 1.0 as fixed using the WGS84 Lat Long which I have. Now I want to attach the stations imported from the .3d file to the fixed point to correctly position the cave. Footleg On 26 March 2011 13:40, Footleg <drfootleg at gmail.com> wrote: > That appears to be the ED50 Datum. I need the EUR79 datum of everything is > a few hundred metres out of position. > > Footleg > > > On 26 March 2011 12:43, Graham Mullan <graham.mullan at coly.org.uk> wrote: > >> For Spain, try using EPSG 23030 for your cs >> >> see http://spatialreference.org/ref/epsg/23030/ >> >> Graham >> -- >> graham.mullan at coly.org.uk >> >> 0117 9502556 or 07887 637064 (or 0844 2327803) >> >> On 26/03/2011 11:00, therion-request at speleo.sk wrote: >> >>> Send Therion mailing list submissions to >>> therion at speleo.sk >>> >>> To subscribe or unsubscribe via the World Wide Web, visit >>> http://mailman.speleo.sk/mailman/listinfo/therion >>> or, via email, send a message with subject or body 'help' to >>> therion-request at speleo.sk >>> >>> You can reach the person managing the list at >>> therion-owner at speleo.sk >>> >>> When replying, please edit your Subject line so it is more specific >>> than "Re: Contents of Therion digest..." >>> >>> >>> Today's Topics: >>> >>> 1. Support for UTM European 1979 Datum (Footleg) >>> >>> >>> ---------------------------------------------------------------------- >>> >>> Message: 1 >>> Date: Fri, 25 Mar 2011 14:13:54 +0000 >>> From: Footleg<drfootleg at gmail.com> >>> Subject: [Therion] Support for UTM European 1979 Datum >>> To: List for Therion users<therion at speleo.sk> >>> Message-ID: >>> <AANLkTinKkQdQt5dgdGcma_9ratem5n+WHMxn9Yw2WwOH at mail.gmail.com> >>> Content-Type: text/plain; charset="iso-8859-1" >>> >>> I'm making good progress now on learning how to generate various output >>> from >>> Therion, and have started on generating KML plan maps for google earth. >>> My >>> problem is that my survey data is coming from survex .3d files which I am >>> importing. I am working with data for many hundreds of caves, and they >>> are >>> all fixed using UTM with the European 1979 Datum because that is the >>> coordinate system of the expedition area maps we have had for the past >>> few >>> decades. As far as I can tell, this datum is not included in Therion at >>> the >>> moment. I've checked the epsg file in the source. I specifically need the >>> UTM30N zone as all our caves using this coordinate system are in that >>> zone. >>> Is this something which can be added please? >>> >>> Footleg >>> -------------- next part -------------- >>> An HTML attachment was scrubbed... >>> URL:< >>> http://mailman.speleo.sk/pipermail/therion/attachments/20110325/0448fe72/attachment.html >>> > >>> >>> ------------------------------ >>> >>> _______________________________________________ >>> Therion mailing list >>> Therion at speleo.sk >>> http://mailman.speleo.sk/mailman/listinfo/therion >>> >>> >>> End of Therion Digest, Vol 63, Issue 16 >>> *************************************** >>> >>> _______________________________________________ >> 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/20110405/51757661/attachment.html>
