I Found A Definition File
Steve,
Thank you. That's a quick and easy way to see the difference:
Dave
What is all this...
Talk of 'west' zone? or different 'zones'? Here in Connecticut, we don't have that problem....seems to lessen the confusion. 😉
What is all this...
> Talk of 'west' zone? or different 'zones'? Here in Connecticut, we don't have that problem....seems to lessen the confusion. 😉
Oregon now has 17 zones.
After assigning coordinate systems in two separate drawings, I'd think you could import your grid coordinates into both drawings. If the lat-longs yielded by points properties are the same, I'd say the coordinate systems are the same.
OK. Good suggestion. Thank you.
Dave
What is all this...
Quit bragging, Mark. The poor fellow only has one zone, and you gotta rub it in. 
Dave
What is all this...
Oregon also has roughly 17 times the area of Connecticut.
What is all this...
Sure makes it easy to know which box to check 😉 B-)
What is all this...
I am in the process of taking over a pipeline job, the collector thats been used has KY North as the datum and the drawing he sent me has AL East for projection. The job in located in Ma, if I change the projection to MA Mainland will the coordinates change, should they change? I am using Carlson Survey OEM 2015 and SurvCE on the collector.
Thanks for any help.
What is all this...
> ... The job in located in Ma(ssachusetts), and the drawing he sent me has AL East for projection.
Oh, dear. This is not good. Not good.
>...if I change the projection to MA Mainland will the coordinates change....?
Absolutely. Quite a bit, I should think.
When you have positions in Massachusetts projected onto grid centered in Alabama the resultant coordinates will be subject to a dramatic scale factors and convergence angles. ie/ scale factor of about 2 feet per 100, convergence angle around 10°, according to a quick CORPCON calc.
On the other hand, If something in Massachusetts has been designed on an Alabama East topo survey then you have nothing to worry about. It's un-buildable. Possibly - I hope- the notation of zone on your plans is simply wrong and the coordinates are OK.
Get a rough lat/long for something that you have been given coordinates for from Google Earth. Run that lat long through CORPSCON to convert it to Massachusetts State Plane. See if you get coordinates for that lat/long that are in the ball park of your project coordinates. (pay attention to US feet/Int'l feet)
That's a Head Scratcher
Mr. Stoner,
Lemme get this straight. The data collector is using Kentucky North, the drawing is using Alabama East, and the job is in Massachusetts. Is that right?
Son, you got problems.
Dave
That's a Head Scratcher
Well, the drawings from designer have "none" for projection. The plans note Mass Mainland/NAD83 for projection. The surveyor thats been doing the work has the settings stated. He did say hes been getting .100'-.200' error in control points, not sure why he is accepting that much error but I am not ok with it and trying to fix it.
What is all this...
The past is locked, the pipe is where it is, as-built as is if need be.
Get the control / design data in WGS84 + ellipsoidal heights. Apply the correct geodetic parameters to the CAD file and your controller.
You inherited the job, that's a clean break, bring the matters to the client and carry on the right way.