Converts an object that encloses an area into a region object.
Summary
Regions are two-dimensional areas you create from closed shapes or loops. Closed polylines, lines, and curves are valid selections. Curves include circular arcs, circles, elliptical arcs, ellipses, and splines.
After you have converted objects to regions, you can combine them into a complex region using union, subtract, or intersect operations.
Closed 2D and exploded planar 3D polylines in the selection set are converted to separate regions. Polylines, lines, and curves that form closed planar loops, are converted into the outer boundaries and holes of a region. All crossing intersections and self-intersecting curves are rejected.
If a selected polyline has been smoothed by either the Spline or Fit option of PEDIT, the resulting region contains the line or arc geometry of the smoothed polyline. The polyline is not converted to a spline object.
REGION deletes the original objects after converting them to regions unless the system variable DELOBJ is set to 0. If the original objects were hatched, hatch associativity is lost. To restore associativity, rehatch the region.