Remove Polyline Arcs

This command replaces arc segments in polylines with a series of chords. Removing arcs is a prerequisite to some Carlson commands that don't handle arcs, such as Break by Closed Polyline and Make 3D Grid File. This process can add many vertices to the polyline. There are three methods to control the size of the chords and how many vertices are created. The Offset cutoff sets the maximum distance any point on the arc will be allowed to shift from the true arc to the chord position. The Length method sets the chord length. With the Length method, you can choose to create the chords entirely on the left or right side. Without setting the side, the program puts the chords on the inside of the arcs. The Count method sets how many chords to replace each arc with.
Original polyline with reverse curve and polyline with arcs removed using Length method with chords put on top side

Prompts

Select polylines to remove arcs from.
Select objects:
pick polylines
Use max offset or chord length method [<Offset>/Length]? press Enter for Offset method
Offset cutoff <0.5>:
press Enter

Pulldown Menu Location: Edit > Polyline Utilities > Remove Polyline
Keyboard Command: rmarc
Prerequisite: polyline with arcs