Sets the unit of measurement for angles.
Type: Integer
Saved: In the .DWG file
Range: 0 (decimal degrees 0.0000d), 1 (degrees/minutes/seconds, 0d0'0.00"), 2 (gradians, 0g), 3 (radians, 0r), 4 (surveyor's units, N0.00dE)
Default: 0