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Polygon
A Polygon
is a planar Surface
representing a multisided
geometry. It is defined by a single exterior boundary and zero or more
interior boundaries, where
each interior boundary defines a hole in the Polygon
.
Polygon
Examples
Polygon
objects could represent forests, districts, etc.
Polygon
Assertions
Polygon
consists of a set of LinearRing
objects
(that is, LineString
objects that are both simple and closed) that make up its
exterior and interior boundaries.
Polygon
has no rings which cross. The rings in the boundary of a
Polygon
may intersect at a Point
, but only as a tangent.
Polygon
has no lines, spikes, or punctures.
Polygon
has an interior which is a connected point set.
Polygon
may have holes.
The exterior of a Polygon
with holes is not connected.
Each hole defines a connected component of the exterior.
The above assertions make a Polygon
a simple geometry.