AutoCAD 2008 User's
Guide > Start, Organize, and
Save a Drawing > Start a
Drawing > Specify Units and
Unit Formats >
Set Angular Unit Conventions
Angle conventions include the position of angle 0 and the direction of measurement: clockwise or counterclockwise. You also set the format and the number of decimal places.
You can choose from several common conventions to represent angles in a drawing. You can specify that positive values of angles are measured either clockwise or counterclockwise, and angle 0 can be set to any direction (usually East or North). You can enter angles using grads, radians, or surveyor's units or using degrees, minutes, and seconds.
If you use surveyor's angles when specifying polar coordinates, indicate whether the surveyor's angles are in the north, south, east, or west direction. For example, to enter a coordinate relative to the current coordinate for a property line that is 72 feet, 8 inches long with a bearing of 45 degrees north, 20 minutes, 6 seconds east, enter
@72'8"<n45d20'6"e
