ISO 10303-214:2010(E)
A Poly_loop is a polygon. It is represented by an ordered co-planar collection of Cartesian points forming the vertices of the Poly_loop. The loop is composed of straight line segments joining a point in the collection to the succeeding point in the collection. The closing segment is from the last to the first point in the collection. The direction of the Poly_loop is in the direction of the line segments.
The data associated with a Poly_loop are the following:
The outer specifies whether the Poly_loop represents the outer boundary of the Faceted_face or not.
The polygon specifies the points that are joined by line segments to form a Poly_loop.
See poly_loop to cartesian_point for the application assertion.
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