A well designed (and documented) LDP can come close, but it will never be "perfect."
Very true.?ÿ
HOWEVER, the Earth ain't flat!
It used to be......
There was a surveyor around here, who worked in SPC. In fact, he considered himself to be an expert with SPC. I never figured out why my dimensions were always about 1/2 a foot longer per mile than his.?ÿ
(Transit and tape days, and total station days)
I did not know til later on, what was going on.
N
@loyal?ÿ
I probably have to whisper this; with our T2's and distance meters we used to survey,,,,,,,,,,,,,geodetically. That's right for large traverses between NGS control we would survey geodetically without GPS,,,,,,,GASP!!!!
Without a computer, without a data collector (I did have a calculator)!!!!! The big book of 8 place tables was on the shelf next to the curta, but I didn't use em, I did know how, but the calculator was better.?ÿ
And you know what? It's all possible, you can still do it if you'd like too.?ÿ
I don't like to anymore, but it's a good exercise for a youngn.?ÿ
Imagine, calculating Lat, Longs forward then taking those and reducing them to state plane values!!!!!
That's not how its done is it?
Hmmmm, can't be done without GPS or can it?
Then about circa 1980-1981 or so I got a program to load in the HP calculator that did the geodetic calcs for me. Now that was a breakthrough.?ÿ
And so you know I wasn't working for some big company or government, just a lil shop over the local newspaper offices. Funny how much us old guys know.?ÿ
Apart from the problems of getting people to understand the difference between grids and ground, there's also the problem on general survey of too many figures in the coordinates. We normally truncate E and N to reduce the risk of the grid values being misread, or mistyped, but always have the FIRST note on the drawing explaining what we have done and giving the full values as well for the reference station marked on the drawing.
BUT there's always some architect/designeer who comes back and tells us the survey is wrong because the coordinates put it in the middle of the Atlantic Ocean - with a screenshot from Google to prove it!
@mightymoe I??ve followed 1960s/70s surveys that were tied to the classic triangulation network. I transformed the surveys to NAD83 then export a Lat/Long CSV from TBC, convert to GPX, import to my iPhone Topo Maps app then hike miles through heavy forest over hill and dale to within 20 feet of the monument I need, with my iPhone. It??s amazing.
@mightymoe Good luck finding a young guy of the RTK generation that even knows how to run a traverse with a total station, much less compute it out by hand. I was killing time in a waiting room talking to a kid asking him what kind of math skills they were teaching these days and he pulled out his iphone calculator. Asked if he could multiply without a calculator. Blank stare. 'Why would I want to learn that when I have this?'
@mightymoe I hear ya buddy.
Long nights in tents, Ranger Stations, and motels with a set of Trig tables and (sometimes) a Curta. Reams of scratch paper (aka "yellow sh!+) and plenty of pencil lead), a few USC&GS "special" publications (138, 193, 247 etc.).
Learned a lot, but have no desire to revisit that technology.
Loyal
By tents you mean on a barstool at the only bar in say Alamo NV. I was looking for my booklet with all the formulas, seems to have gone missing. I'm not going to put much effort into finding it.?ÿ
@mightymoe I've been through Alamo a few times, but don't recall ever stopping there. Now Goldfield, Midas, Rosebud, and such are a different story!?ÿ
By tent, I mean TENT (canvas), stoking the Yukon Stove with whatever was handy (Sage Brush, Quaky, Pine, cardboard Budweiser boxes, etc.)?ÿ
Loyal?ÿ
Can we at least agree that measurements included in deeds should be ground measurements that can be re-measured with common, everyday measurement equipment that non-surveyors would use to seek for the monuments (corners) shown on a survey plat of record.
@loyal?ÿ
I've surveyed out of a tent a couple of times. Not my favorite way to work, play yes, work no.?ÿ
