Calculate the Bearing of a Line

8901
5
09-26-2012 06:39 PM
Status: Closed
Labels (1)
LauraBates
Occasional Contributor

It would be great if we could calculate the bearing of a line into a field through the 'Calculate Geometry' function (or even a field calculator script?) in the attribute table.

The only way I have found to do this is through the 'Spatial Statistics' - 'Measuring Geographic Distributions' - 'Linear Directional Mean' tool, which is a bit convoluted for something that seems so logical to need. That particular tool doesn't even come up when you search for tools related to "bearing".

5 Comments
KoryKramer
RyanPaquette1

The COGO method you mentioned is many steps to get what should be a simple built in feature / not requiring customization. The COGO toolbar doesnt allow to simply select a layer... you have select it on the map via a click.

Not sure how the app is attempting to note the bearing of a line feature with multiple parts. You get a single line bearing as a result, despite having numerous parts. I take it you would need to break the feature into multiple parts first...

KoryKramer
RobertCottreau13

Data Management Tools > Features > Add Geometry Attributes

and select Line Bearing from the available fields to calculate

ChristineSeidel

Does anyone know if the Line Bearing, via the 'Add Geometry Attributes' tool, is calculated based on Map/Grid North, True North, or Magnetic North?  Thanks.