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<h5 class="subsubsection">3.2.6.1 Swept points</h5>
<p><a name="index-swept-point-286"></a><a name="index-point-sweep-287"></a>If <var>swept_object</var> is a point list and there is no closure tag,
<a name="index-g_t_003c_003e_0040r_007b_002c-closure-tag_007d-288"></a><a name="index-closure-tag_002c-_0040code_007b_003c_003e_007d-289"></a>then <code>sweep</code> connects <var>n</var>+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,
<a name="index-point-list-290"></a>then m polylines with <var>n</var> segments each are formed by the
sweep. In this manner, <code>sweep</code> forms a set of one-dimensional
objects (polylines) from zero-dimensional ones (points).
<p>When there <em>is</em> a closure tag,
<a name="index-g_t_003c_003e_0040r_007b_002c-closure-tag_007d-291"></a><a name="index-closure-tag_002c-_0040code_007b_003c_003e_007d-292"></a><code>sweep</code> connects <var>n</var>
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 <var>n</var> sides. If there are m points in
the original point list, then m polygons with <var>n</var> sides
each are formed by the sweep. In this manner, <code>sweep</code> forms a
set of two-dimensional objects (polygons) from zero-dimensional ones
(points).
<p>Options
<a name="index-options_002c-sweep-293"></a>of the <code>sweep</code> are copied directly to the resulting
polyline(s).
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