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MultiPolygon
A MultiPolygon
is a MultiSurface
object composed of
Polygon
elements.
MultiPolygon
Examples
MultiPolygon
could represent a system of lakes.
MultiPolygon
Assertions
MultiPolygon
has no two Polygon
elements with interiors
that intersect.
MultiPolygon
has no two Polygon
elements that cross
(crossing is also forbidden by the previous assertion), or that
touch at an infinite number of points.
MultiPolygon
may not have cut lines, spikes or punctures. A
MultiPolygon
is a regular, closed point set.
MultiPolygon
which has more than one Polygon
has an
interior which is not connected. The number of connected components of the interior
of a MultiPolygon
is equal to the number of Polygon
values in
the MultiPolygon
.
MultiPolygon
Properties
MultiPolygon
is a two-dimensional geometry.
MultiPolygon
boundary is a set of closed curves
(LineString
values) corresponding to the boundaries of its
Polygon
elements.
Curve
in the boundary of the MultiPolygon
is in the
boundary of exactly one Polygon
element.
Curve
in the boundary of an Polygon
element is
in the boundary of the MultiPolygon
.