POLYFIT creates 2D polylines with straight line segments along equivalently divided length or perimeter of planar curves.
 
Lines, circles, arcs, ellipses, 2D polylines, and 2D splines can be selected.
Their thickness must be equal to zero.
 
You may choose whether the curves are to be divided into a certain number of sections or into sections of a certain length (cf. AutoCAD "divide" and "measure" commands).

Note that a curve gets divided into sections of equal length but the generated polyline segments differ in length; the sharper a curve section is bending, the more a generated polyline segment is shortened.
 
If a selected object is closed, POLYFIT will create a closed polyline.
 
The polylines are created on the current layer with the current color and linetype assignments (independently of the original curves).
 
The POLYFIT conversion function may assist or enable execution of various AutoCAD commands:
  - joining with other objects, creating closed objects by means of "pedit"
  - extruding
  - creating tabulated or ruled surfaces
  - marking boundaries of areas, especially for "xclip", "clipit", "extrim", "wipeout"
Besides, compatibility is improved concerning export into other CAD systems (especially former AutoCAD versions).