14.7.4.20 PolylineRepresentation

Definition from Wikipedia (http://en.wikipedia.org/wiki/Piecewise_linear_curve):

A polygonal chain, polygonal curve, polygonal path, or piecewise linear curve, is a connected series of line segments. More formally, a polygonal chain P is a curve specified by a sequence of points \scriptstyle(A_1, A_2, \dots, A_n) called its vertices so that the curve consists of the line segments connecting the consecutive vertices.

In computer graphics a polygonal chain is called a polyline and is often used to approximate curved paths.

BUSINESS RULE: To record a polyline the writer software must give the values of the geometry of each node in an order corresponding to the logical series of segments (edges). The geometry of a polyline must be a 1D array of points.

A simple polygonal chain is one in which only consecutive (or the first and the last) segments intersect and only at their endpoints.

A closed polygonal chain (isClosed=True) is one in which the first vertex coincides with the last one, or the first and the last vertices are connected by a line segment.

Derived From: AbstractRepresentation

Derived Classes: (none)