## Dimensioning Angle

Dimension Angle dialog box

The Insert | Dimension | Angle menu option calculates the angle between two selected features. (Verify that the option To Feature is selected.) If only one feature is specified, the angle is calculated between the major axis of the current working plane (the default axis is X) and the selected feature. If the angle reported by PC-DMIS is not in the correct quadrant (you want 0.0, not 180.0), just type the correct nominal angle in the Edit window. PC-DMIS will automatically convert the quadrant to match the nominal angle.

The direction of the lines determines the angle that is measured.

The Angle dimension calculates the angle between the specified features, and checks if the angle is within tolerances. The Angle dimension's tolerance band is in radians or degrees and forms an angle.

The measured value is an angle (blue). The Angle tolerance band is another angle (black).

Important Changes: In version 4.3, PC-DMIS improved its method of calculating Angle dimensions. If you load a part program from 3.7 or earlier into the current version, PC-DMIS will display a message informing you that the way Angle dimensions were calculated has changed and that all Angle dimensions in the program were updated.
The default nominal angle is calculated from the first feature, moving counterclockwise to the second feature. The nominal vector of each feature defines its orientation. If angle degrees are displayed as 0 to +/- 180 (in the Setup Options dialog box, Dimension tab, Angle degrees box) then the negative angle is used by measuring clockwise from the first feature to the second feature. You can always change the nominal angle to get the desired quadrant. The angle you enter should be consistent with the value in the Angle degrees box (0 to 360 or 0 to +/- 180).

More:

To Dimension the Angle Between Two Features:

Tolerances for Angle Dimensions

Angle Type

Relationship for Angle Between Dimensions