##### 3.2.6.1 Swept points

If swept_object is a point list and there is no closure tag, then `sweep` connects n+1 successive copies of each point (including the original) with straight line segments to form a polyline. If there are m points in the original point list, then m polylines with n segments each are formed by the sweep. In this manner, `sweep` forms a set of one-dimensional objects (polylines) from zero-dimensional ones (points).

When there is a closure tag, `sweep` connects n successive copies of each point (including the original) with straight line segments and finally connects the last copy back to the original to form a polygon with n sides. If there are m points in the original point list, then m polygons with n sides each are formed by the sweep. In this manner, `sweep` forms a set of two-dimensional objects (polygons) from zero-dimensional ones (points).

Options of the `sweep` are copied directly to the resulting polyline(s).