<#1#>poly<#1#><#2#>Polygon feature<#2#><#3#>
3 This feature provides a means for specifying the locations of vertices for regular polygons, with 3 to 12 sides. Polygons can be easily drawn and/or the vertex positions used to constuct complex graphics within an -picture. Many non-regular polygons can be specified by setting a non-square basis.
;''2