Examine Arc

(This functionality is available with the Computations module)

Examines the dimensional attributes of an arc object.

Examine Arc dialog box

Item	Used to
Arc Number	Select the required arc. The line number can be entered via the keyboard or the arc can be selected via the mouse.
Examine	Display the dimensional attributes

Attribute	Description
Degree of Curvature	The degree of curvature is the angle subtended by an arc, of the same radius as the arc selected, but which has a length of 100'. If the Alignment Configuration is set to Railway, this length will be a chord length, if to Road, an arc length. The degree of curvature is only available if the units are set to feet.
Centre Point	The Identifier of the point at the centre of the arc.

Intersection Angle:- T-I-B = A-O-B Radius:- OA = OB Arc Length:- AMB along the curve Chord Length:- AB Bearing:- A to B Tangent Distance:- AI = IB External Distance:- IM Middle Ordinate:- CM Centre Point:- O