Well assuming that you have geodetic coordinates on your RTK shots, you can compute geodetic bearings.
I assume I have to find an online SPC to latitude/longitude converter?
"East on the forty line" makes the actual bearing of the "forty line" the controlling direction (not the call for "East") at least in my opinion.
I hope I have that info. I assume I could look that up online.
Well assuming that you have geodetic coordinates on your RTK shots, you can compute geodetic bearings.
I assume I have to find an online SPC to latitude/longitude converter?
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Maybe...but I suspect that most folks have "programs" either on their Computers or their data collectors that will do that. If not, the NGS "NCAT" program will do it (and much more);
https://geodesy.noaa.gov/NCAT/
No association, nor have I ever used it, but would the QuickCogo program linked at the bottom of the forum not do this? It seems to suggest so from its overview page. Might be worth checking out an evaluation copy.
If not, the NGS "NCAT" program will do it (and much more);
Now pinned to my taskbar.
would be interested in looking at your excel spreadsheet when you can make it available, thanks
It was mentioned sometimes we are the first to break down a section. My experience is that may happen once or twice in a career. In most cases the section was broken down by the holders of the patents to the quarter or half sections 150 years ago. Hardly any patents went to one owner for the entire section in this state.?ÿ
Maybe once or twice in your career, but some of us do this on most jobs. The whole country is not developed yet, there is a lot of "wilderness" left.?ÿ
Doing it by the book is a lot less important when the same owner owns the whole section, so that's not where this really comes into play.?ÿ
@aliquot it??s SOP here to assume the world is flat for purposes of a single section.
True when surveying and restoring corners beyond a section geodetic considerations begin to matter.
If we are doing it correctly we should put away our calculators, get a solar compass and go out there and run the actual lines, that??s really how it??s supposed to be done.
@aliquot?ÿ
I've worked in many "virgin" sections, and then there are the mixed estate sections. Those can be a real PITA.?ÿ
You always need to be aware of mineral estate particularly when the mixed includes imperial involvement.?ÿ
Sectional breakdowns.
They are needed, even in sections that have been broken down 3x before. Not necessarily to change it. But to have a mechanism of comparison. Professional surveyors need to "know both". I've held many local monuments. But, knowing what the breakdown does, is an integral part of knowing the "theory" and "practice" of surveying. The theory of course, is the sectional breakdown. And the practice is the yielding to a pine knot from 1932.
It's a part of the whole evaluation process.
Nate
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Imperial entanglements are more the rule than the exception in much of the Mountain West. This is especially true of Sections that include Mineral Surveys, and the subsequent "lotting" of the remaining USA lands within the Section, which may or may not have been conveyed (patented) under various authorities based on said supplemental plats. It is actually somewhat rare for the subdivisional lines these parcels to have been "surveyed" let alone fenced. East-West Center Lines of such Sections need to be established "properly" regardless of who owns the lands (Public Domain or Private). Yeah... it's ONLY a tenth or two depending on your latitude (more in Alaska), but it's not that difficult to do it "by the book."?ÿ ?ÿ?ÿ
about 50% of private land have fed mineral estate in my state. It's difficult to stake a sectional corner without Fed interest involved.?ÿ
about 50% of private land have fed mineral estate in my state. It's difficult to stake a sectional corner without Fed interest involved.?ÿ
But you don??t dimple monuments LOL J/K
In my area the midpoint of 1 mile is south about 0.13 feet of a straight line, still on the 3-1/4? monument cap.
But you don??t dimple monuments LOL J/K
Speak for yourself Dave, a "datum point" dimple is SOP around these parts. Of course a BIG Cap helps keep the "point" on the cap!
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Here is the proportion by geodetic positions spreadsheet I mentioned earlier in this thread.?ÿ ?ÿIt is set up for double proportion but if you want to do a single proportion just use one line.?ÿ ?ÿ Although it is set up for a cardinal line PLSS rectangular?ÿ in the graphic layout, I am pretty sure it will work on any bearings when doing a one line single or a double proportion.?ÿ But I'm retired and can't remember as well as I would like to or used to, please check it and verify using non cardinal proportions.?ÿ ?ÿMaybe somebody who has data can do so and report back on this thread.?ÿ Pretty sure it will do that.?ÿ ?ÿRecord distances can be any unit as long as is same units throughout entry.?ÿ ?ÿThe datum is not really used, I know it works both on NAD 27 and NAD 83.?ÿ?ÿ
@loyal mighty moe has stated on numerous occasions that he doesn??t dimple caps (unless I have him confused with someone else). I guess the joke is no longer funny if it has to be explained.
I put a dimple in the center.
Interesting discussion, I'm glad I brought this up and to clarify for some including my dear friend Mr.Cow my intention was to find a mathematical aid, another tool only, that would act as a check to my cad program. This by no means was to replace or substitute for anything normally required in a surveyors breakdown of a section, no abandonment from the BLM manual, regular exhausting search for monuments on the ground and common sense. I've been working on it since the posting of this question with a programmer who wrote some script, yesterday I got something to check with manual and cad calculations so it works. I'd be happy to share this with anyone interested.
I'd also be interested in the program you have when you get back in Northern Surveyor, man I remember the cold in Maine, -45 degrees, everybody dressed like you were in George Washington's army. Sitting by the wood stove....
Thanks to all who added to this post, I always learn something here!
I'm just a surveyor continually trying to find north Mr. Cow,
See You, Happy New Year!
If anyone is needing CAPD contact me. I have all the limited documentation that exists as well. Even have it all ready to load in a cuix file so installing it is copy and paste to a defined directory and then load the cuix into your version of AutoCad.
I have all the legacy CAPD files plus a lot more custom CAPD lisp routines that I helped build (in a very limited way) at the NV BLM. Besides myself and a BLM friend in Idaho and one other guy at the FS, nobody else I know of has added to CAPD since Tommy Noble had to stop working on it sometime in the late 90??s or the early 2000??s.
I would also be interested in teaching CAPD to anyone interested. Contact me and we can discuss the services I would consider offering.
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@northernsurveyor Back in early 2000s I used a program called BOGO, the creation of a BLM surveyor for doing mostly geodetic computations and township protractions. It was a wonderful tool for this application. I suppose if you are familiar with it you likely know a lot more about it and likely the individual that wrote it. I still have a couple of versions but very few sections and townships to protract these days.?ÿ
Just because I'm paranoid, doesn't mean they aren't out to get me.