org.opengis.geometry.primitive
Interface Ring
- All Superinterfaces:
- Complex, Composite, CompositeCurve, Geometry, OrientableCurve, OrientablePrimitive, Primitive, TransfiniteSet
@UML(identifier="GM_Ring",
specification=ISO_19107)
public interface Ring
- extends CompositeCurve
Represent a single connected component of a surface boundary.
It consists of a number of references to orientable curves
connected in a cycle (an object whose boundary is empty). A Ring
is structurally
similar to a composite curve in that the end point of each
orientable curve in the sequence is the start point of the next
orientable curve in the sequence. Since the sequence is circular,
there is no exception to this rule. Each ring, like all boundaries is a cycle and each ring is
simple.
Even though each Ring
is simple, the boundary need not be simple. The easiest
case of this is where one of the interior rings of a surface is tangent to its exterior ring.
Implementations may enforce stronger restrictions on the interaction of boundary elements.
- Since:
- GeoAPI 1.0
- Version:
- ISO 19107
- See Also:
SurfaceBoundary
,
Shell
Method Summary |
boolean |
isSimple()
Always returns true since ring objects are simples. |
Methods inherited from interface Geometry |
clone, distance, getBoundary, getBuffer, getCentroid, getClosure, getConvexHull, getCoordinateDimension, getCoordinateReferenceSystem, getDimension, getDistance, getEnvelope, getMaximalComplex, getMbRegion, getPrecision, getRepresentativePoint, isCycle, isMutable, toImmutable, transform, transform |
isSimple
boolean isSimple()
- Always returns
true
since ring objects are simples.
- Specified by:
isSimple
in interface Geometry
- Returns:
- Always
true
. - See Also:
Geometry.isCycle()
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