View Full Version : Question for cartographers - bearing

Eduard Nemirovsky
07-28-2018, 2:49 PM
I am trying to place my plat on Google Earth map. On map I have, direction from one mark to another has bearing, for example S 59*56'19" E.
In Google Earth bearing just a simple - 45*. I understand it is clockwise angle from the pointing north.
But I can't find how to transfer my bearing to simple angle?
Thank you,

Roger Nair
07-28-2018, 7:04 PM
It seems like your Google resolution is 45 degrees or only eight points on the compass. Your plat is deg-min-sec a very high order of resolution, You are also thinking in terms of azimuth bearing in a 360 degree scale. The surveyors plat is in a quadrant scale. So you will need to know your working resolution and type of scale. 59 56' 19" rounds to 60 degrees but you will need to understand the orientation of the quadrant scale. The North - South axis is 0 degrees no matter whether you face north or south. So imagine you are facing south exactly and turn to the east 59 56' 19" or 60 degrees a convenient resolution.

Eduard Nemirovsky
07-28-2018, 8:44 PM
Thank you, Roger. I will investigate more.

Lee Schierer
07-28-2018, 9:36 PM
Here is a quick tutorial on reading your plat (https://www.wikihow.com/Read-a-Property-Survey).

Dave Richards
07-28-2018, 9:47 PM
https://farm1.staticflickr.com/856/41893059160_c34a85611b.jpg (https://flic.kr/p/26PWSXs)

Roger gives the right way to read the bearings. Easier to draw in SketchUp and make a file that can be opened in GE.

SketchUp takes care of the north direction when you add the location.

Bill Dufour
07-29-2018, 12:18 PM
Note that magnetic north varies with location and it drifts with time(decades).
Bill D.

Mike Chance in Iowa
07-29-2018, 12:59 PM
This link may help you with conversion. https://www.gps-coordinates.net/

Eduard Nemirovsky
07-30-2018, 8:52 PM

Thank you very much for the help, especially Dave for converting my bearing info to usable map file. You are magician with Sketchup.
Mike , I will check links, thanks.
Lee, thanks for tutorial.