Label Angle

This command will label and report the interior, exterior and deflection angles between two directions. The angles can be defined by three points, or by two line or polyline segments that have a common endpoint. An example of labeling interior and exterior angles is shown below. The Both option will label interior and exterior angles simultaneously. When the input data has different elevations, the program prompts whether to label the 2D or 3D angle. For 2D angle, the program ignores the elevations. For 3D angle, the program projects the data onto a 3D plane and calculates the angles on this plane.

At the Command line, type O for Options to bring up the options dialog. There are settings for the angle format as degrees, minutes and seconds, or as decimal degrees. You can also control the number of decimals and choose whether to draw dimension leaders for the interior angle labels. The Create Angle Table option will prompt to type in a Reference Label (ie. "A1") to draw in place of the angle value. Then at the end of the command, the program draws a table of the reference labels and angle values. The Horizontal Label option controls whether to draw the Reference Label horizontal or at the angle. The Label Symbol option sets the type of symbol to draw around the Reference Label.

Prompts

Define angle by [Options/Points/<select line or polyline>]: pick a polyline segment
Select adjoining line or polyline: pick another polyline segment
Interior: 64d15'01"  Exterior: 295d44'59"  Deflection: 115d44'59"
Angle to label [<Interior>/Exterior/Both/Deflection/None]? press Enter
Typing B for Both labels both the interior and exterior angles.
Define angle by, Points/<select line or polyline>: press Enter to end

Pulldown Menu Location: Annotate
Keyboard Command: labang
Prerequisite: None