Oracle 5.0 Reference Manual page 1002

• A
MultiCurve
any two elements occur at points that are on the boundaries of both elements.
• A
MultiCurve
even rule"): A point is in the boundary of a
MultiCurve
• A
MultiCurve
• The boundary of a closed
12.16.2.11. Class
MultiLineString
A
MultiLineString
MultiLineString
• On a region map, a
12.16.2.12. Class
MultiSurface
A
MultiSurface
noninstantiable class. Its only instantiable subclass is MultiPolygon.
MultiSurface
• Two
MultiSurface
• Two
MultiSurface
12.16.2.13. Class
MultiPolygon
A
MultiPolygon
MultiPolygon
• On a region map, a
MultiPolygon
• A
MultiPolygon
• A
MultiPolygon
previous assertion), or that touch at an infinite number of points.
• A
MultiPolygon
closed point set.
• A
MultiPolygon
number of connected components of the interior of a
Polygon
MultiPolygon
• A
MultiPolygon
• A
MultiPolygon
boundaries of its
• Each
Curve
element.
• Every
Curve
The OpenGIS Geometry Model
is simple if and only if all of its elements are simple; the only intersections between
boundary is obtained by applying the "mod 2 union rule" (also known as the "odd-
elements.
is closed if all of its elements are closed.
MultiCurve
is a
MultiCurve
Examples
MultiLineString
is a geometry collection composed of surface elements.
Assertions
surfaces have no interiors that intersect.
elements have boundaries that intersect at most at a finite number of points.
is a
MultiSurface
Examples
MultiPolygon
Assertions
has no two
Polygon
has no two
Polygon
may not have cut lines, spikes, or punctures. A
that has more than one
values in the MultiPolygon.
Properties
is a two-dimensional geometry.
boundary is a set of closed curves
elements.
Polygon
in the boundary of the
in the boundary of an
if it is in the boundaries of an odd number of
MultiCurve
is always empty.
geometry collection composed of
could represent a river system or a highway system.
object composed of
could represent a system of lakes.
elements with interiors that intersect.
elements that cross (crossing is also forbidden by the
has an interior that is not connected. The
Polygon
MultiPolygon
(LineString
is in the boundary of exactly one
MultiPolygon
element is in the boundary of the MultiPolygon.
Polygon
982
LineString
MultiSurface
elements.
Polygon
MultiPolygon
is equal to the number of
values) corresponding to the
elements.
is a
is a regular,
Polygon