Surveyor Question?

[VERYCIVILDRAFTER]

Over the last year or so I've noticed a fairly consistent change in surveyor drawing setup, and I was hoping that someone in the industry would enlighten me.

I've been receiving site survey drawings (directly from surveyors) that or are hundreds of miles from from 0,0. The sites overall area will be around two or three million feet from 0,0. While this doesn't seem like a big deal, i get weird rounding errors with LDD 2005 this far out from 0,0.

2000000'=378.7879 miles <-about the width of Colorado

Mostly, I just don't understand the reasoning behind it. Is this AutoCAD generated, data collector generated, a lazy or inexperienced cad user, a GIS conversion blowout, or something different entierly?


(Just for laughs I used Google Earth to locate a surveyors 0,0 point for one of my projects in Parker Colorado. 0,0 is right out side Big Bear... California!)

[Alan Cullen]

Surveys are now done on mapping grids...they have nothing to do with 0,0 origins.

e.g....here all surveys are around 3551230,8141480...which are MGA Coords.

LDD should be able to handle the coords very easily

[VERYCIVILDRAFTER]

Ahhhhh! Well there's that then.

I'll be back after some Googleing and Wikipediaing.

[garalare]

A lot of Surveyors prefer to start out with a northing and easting ( Y/X ) of 5000/5000. Using these numbers most likely will prevent the need for negative value coordinates which some data collectors don't do well with. The extremely high numbers you see used for coordinates are most likely derived from State Plane coordinates, used in the USA.