Hi everyone, just joined.
I have a very noob question; I do archaeology and have been mapping with total stations for quite some time. ?ÿI've been using Carlson's SurvCE on a Nomad for data collection, but have never really had the need to deal with editing the RAW file. ?ÿUntil this year. ?ÿOn the final day of a field school, we had students map an area starting off with just three control points. ?ÿWe provide the XYZ for those three and the rest is up to the students. ?ÿWell, in the haste of that morning, when I copied over the coordinates from our master mapping project, I inadvertently reversed the Northing and Easting columns, ending up in completely screwy maps for those students. ?ÿEach team occupied two of the three control points during the exam, and had the choice of using either of the non-occupied points as the backsight.
In order to fix this, I believe should be fairly simple by finding those two setups in the RAW file, and reversing the N and E values, and reprocessing the entire file. ?ÿI'm just not sure of the exact procedure (e.g., do I need to create three new control points with the correct coordinates, or can I manually type in the correct values, etc.).
Also, I have the RAW files on hand, but the Nomad with SurvCE is elsewhere; is there a way to edit/reprocess the RAW files on a PC, other than purchasing one of the various suites of software, e.g., SurvPC.
Thanks for any help / pointers.?ÿ
Along with SurvCE you should also get 1 license for Carlson X-port. You should be able to load up the rw5 file, make the necessary changes then re-compute and create a new coordinate file.
I'm definitely not an expert at this, so maybe someone like?ÿ@ladd-nelson will see this and provide a better perspective...
I believe, if you want to edit the raw file on a PC, that you will need Carlson Survey to edit and compile the file(s). But I could be wrong. You can also send the file(s) to someone with this software, and they can compile it for you.
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Ah, cool! ?ÿThis X-port sounds like exactly what I need. ?ÿUnfortunately, the SurvCE came with the Nomad, which I purchased used; maybe I'll contact Carlson and ask if they could provide a license for X-port based on the license info for SurvCE. Thanks!!
Yeah, I think anybody savvy with editing RAW files would be able to do this in like 2 minutes. ?ÿNeed to learn 🙁
Do you by any chance have Carlson Survey? or are you able to download a trial copy? as in the point toolbar, there is a function called coordinate point utilities where you can easily just swap the northing easting. Key in the point number you want to swap and viola you are done.?ÿ
I'm pretty sure I'd be able to download a trial version, as I've never done that before. ?ÿIs the "Carlson Survey (ACAD OEM)" a standalone version that would work?
I use the intellicad version. Carlson claims that ACAD OEM is like a Autocad stripped down version. But some features are not able to be used. It should work though. Remember to drop carlson an email to get the trial license key.?ÿ
OK, will give it a try. Thanks!
You should be able to reverse the N/E upon exporting of the ASCII file from SurvCE. You can also click the Helmet>Data>Raw data & swap the N/E on all the OP lines then process.
Yeah, just reversing the N/E upon export won't work (nor would reversing the N/E in post, e.g, in Excel), because the N/E of the occupy point and the backsight point were also reversed, so for each of the two setups, the students were shooting in entirely the wrong directions. ?ÿAnd because they had to reset to another occupy point during the exam, at which point the error in the angle was different from their first setup, the combined map is just a chimera, and doesn't resemble the topography in any way. ?ÿLOL.
OK, so I was able to download a trial version of Carlson Survey (ACAD), and I do see the Edit/Process RAW menu.
As you can see, the N and E are clearly reversed for the first occupy point. ?ÿThe two coordinates are reversed for the first backsight point as well, although it's not showing up here. ?ÿMy objective would be to reverse the N/E for both the Occ. Pt. and the Bs. Pt., and reprocess all the sideshows that were taken for this setup. ?ÿAnd then repeat the same for the next setup.
Can anyone give me pointers as to how to go about this? ?ÿI can easily swap the N and E for the Occ. Pt. in this editor, but not so for the Bs. Pt. ?ÿdo I insert a new point (19014T6) with the correct coordinates? ?ÿDo I calculate the "correct" ZenithAng and just replace the erroneous one (87.055) with that?
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Again, thanks for any and all help.
Never mind! ?ÿI figured it out. The editor was more intuitive than I'd thought. ?ÿI just inserted the three points with the correct coordinates at the top and reprocessed the RAW file, and out came all the corrected points.
Thank you all for your help!!
This is the toolbar you should be looking at. In the coordinate file utilities do a search for swap northing and easting. You do not have to mess with coordinates, just the point numbers. This will reduce any other blunders you may make.?ÿ
