A knowledge of arc relationships is required when working with curves in AutoCAD design and programming.
delta in radians
- =delta in degrees*pi/180
- =delta in degrees/57.2957786666 approx.
delta in degrees
- =delta in radians*180/pi
- =delta in radians*57.2957786666 approx.
For all these relationships, angles are in radians. Angle 2 is the angle of triangle 123 at Point 2
- =arc length/delta
Angle 2 (even when point 2 is not at midpoint of arc)