This command replaces arc segments in polylines with 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. The Offset cutoff is the maximum any point on the arc will be allowed to shift.
Select polylines to remove arcs from.
Select objects: pick polylines
Offset cutoff <0.5>: press Enter
Pulldown Menu Location: Edit > Polyline Utilities >
Remove Polyline
Keyboard Command: rmarc
Prerequisite: polyline with arcs