My "cogo" training came from a retired US Army Lt. Col. that (according to him) single-handedly won the European Theater in WWII.?ÿ His use of calc sheets and N/E coordinates was extensive.?ÿ It was good training in the early '70s.?ÿ What wasn't so good was his use of the military phonetics when designating control points.?ÿ Instead of point 1, it was station "alpha", point 2 was station "baker"...et cetera.
This worked fine in field books until until we purchased some HP 3800 series EDMs.?ÿ The corresponding calcs from the HP desk calculator spit out numbers, not names.?ÿ The transition wasn't really that difficult except he always wanted both designations in the FBs.?ÿ He retired in 1980.
I use 100, 200, etc as my starting numbers but that's based on our use of point groups for control, boundary, calculations and so forth.?ÿ
Now when I'm collecting photo ID points and aerial control for our geospatial group, I'll instruct the crew to locate PID 1 as 1001, PID 6 as 1006 and so on.
T. Nelson - SAM
Especially for stakeout, I start at "0" except for the first point.?ÿ That way primary control is <20 (1-19), calced control is 20s, 30's & 40's (ie 2-digit # beginning w/ 2, 3 or 4), secondary control begins with 5-9 (50-99) and then I can give 3 digit numbers to specific feature or staking types - 100's are foundation corners, 200's are concrete flatwork, 300's are utiilties, 400's rock wall, etc.
It makes certain management of points a little easier and possibly helps contractors and equipment operators more easily identify what they're looking at on a site, but not enough to bother me if someone else does it differently.
?ÿOK if it is 2022AD and that started when Jesus died at 1AD and before Jesus was 1BC what are all of the years numbered when he was alive?
Trick question, AD is Anno Domini, as soon as Jesus came along it switched to AD.
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Or for atheist heathens like me, the less inflammatory, neutral terms B.C.E. and C.E. are employed.
Fun fact, those terms have been around for a long time, and C.E. was also referred to as the Vulgar Era, back when vulgar literally mean common or ordinary.
The key information there is that AD stands for Anno Domini or "the year of our lord". As a kid I always assumed it was "After Death".
But anyway...CE and BCE (Current Era) are supposed to be nicer to other religions, but it seems a bit silly (to be for or against "CE"). What exactly defines the "Current Era"? It might make as much sense to pick a date when we can all agree the Roman Empire ended (laughing).
@dmyhill?ÿ
Yeah, but...................?ÿ No one knew it was BC or BCE at the time.?ÿ They didn't even know it was AD or whatever.?ÿ It was many years later when a numbering system was selected based on the best guess.?ÿ Seems like it might have worked out later that 1 BC was more like 5 AD after some refinement was figured in.?ÿ I AM NOT A BIBLICAL SCHOLAR, so take it for what it is worth.?ÿ Of course, there later came another adjustment of the Julian/Gregorian calendar debacle.
Found this in a quick search.
B.C. stands for ??Before Christ,? as in Jesus Christ. It indicates the number of years before the birth of Jesus (although Jesus himself was born in 4 B.C.). A.D. stands for the Latin phrase Anno Domini. That translates to ??In the year of our Lord.? It's used to mark years after the birth of Jesus.
I mean... so 1st point on a project (pt #, N, E, Elev, desc) is:
0, 5000.00, 5000.00, 100.00, set hub."The first recorded zero appeared in Mesopotamia around 3 B.C. The Mayans invented it independently circa 4 A.D"
There is no roman numeral to represent zero. I never thought of that before. Hmmmm ....
I've never actually had a control point zero, but maybe I should. It would actually work well for my typical work flow, where Control point 1 is usually the RTK base. I start boundary points at 100, and topo points at 10000.?ÿ?ÿ
@paden-cash a pre 56 vet would have been able, baker. Post NATO would be alpha, bravo. And yes, I am fun watching movies too...
Interestingly, Trimble Access allows point name "0", even a "-1". Civil3d doesn't not allow "0" as point number or negative integers.
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I don??t where I am now but I always preferred to use alpha numerical for point names/numbers for all control. Ex rtk0001. TV0001. Static was same way once processed. It alway gave me the ability to see if it was a side shot or fly point as they call it now. ?ÿI also use letters in for staking out TBC0001. So this allowed me to quickly see what i was doing and also have the description at the end. I have heard a million times that cad would not take aplha numerical but it use to it was a setting. That left the 1-infinity for topo calcs etc. to this day I still want to name my control points. My primary ones. Company i am with dont jive so i work with numbers. But we can have two number 1??s within 1/2 mile of each other on state plane and thats not a problem because its a different job . ?ÿ
I start on even numbers.?ÿ The point ranges I use are 10-999, 1000-1999, 2000-2999, etc.