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java.lang.Objectcom.vividsolutions.jts.geom.Geometry
com.vividsolutions.jts.geom.LineString
com.vividsolutions.jts.geom.LinearRing
public class LinearRing
Models an OGC SFS LinearRing
.
A LinearRing
is a LineString
which is both closed and simple.
In other words,
the first and last coordinate in the ring must be equal,
and the interior of the ring must not self-intersect.
Either orientation of the ring is allowed.
A ring must have either 0 or 4 or more points.
The first and last points must be equal (in 2D).
If these conditions are not met, the constructors throw
an IllegalArgumentException
Field Summary | |
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static int |
MINIMUM_VALID_SIZE
The minimum number of vertices allowed in a valid non-empty ring (= 4). |
Fields inherited from class com.vividsolutions.jts.geom.LineString |
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points |
Fields inherited from class com.vividsolutions.jts.geom.Geometry |
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envelope, factory, SRID |
Constructor Summary | |
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LinearRing(Coordinate[] points,
PrecisionModel precisionModel,
int SRID)
Deprecated. Use GeometryFactory instead |
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LinearRing(CoordinateSequence points,
GeometryFactory factory)
Constructs a LinearRing with the vertices
specifed by the given CoordinateSequence . |
Method Summary | |
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int |
getBoundaryDimension()
Returns Dimension.FALSE , since by definition LinearRings do
not have a boundary. |
java.lang.String |
getGeometryType()
Returns the name of this Geometry's actual class. |
boolean |
isClosed()
Tests whether this ring is closed. |
Geometry |
reverse()
Creates a LineString whose coordinates are in the reverse
order of this objects |
Methods inherited from class com.vividsolutions.jts.geom.LineString |
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apply, apply, apply, apply, clone, compareToSameClass, compareToSameClass, computeEnvelopeInternal, equalsExact, getBoundary, getCoordinate, getCoordinateN, getCoordinates, getCoordinateSequence, getDimension, getEndPoint, getLength, getNumPoints, getPointN, getStartPoint, isCoordinate, isEmpty, isEquivalentClass, isRing, normalize |
Methods inherited from class com.vividsolutions.jts.geom.Geometry |
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buffer, buffer, buffer, checkNotGeometryCollection, compare, compareTo, compareTo, contains, convexHull, coveredBy, covers, crosses, difference, disjoint, distance, equal, equals, equals, equalsExact, equalsNorm, equalsTopo, geometryChanged, geometryChangedAction, getArea, getCentroid, getEnvelope, getEnvelopeInternal, getFactory, getGeometryN, getInteriorPoint, getNumGeometries, getPrecisionModel, getSRID, getUserData, hashCode, hasNonEmptyElements, hasNullElements, intersection, intersects, isGeometryCollection, isRectangle, isSimple, isValid, isWithinDistance, norm, overlaps, relate, relate, setSRID, setUserData, symDifference, toString, toText, touches, union, union, within |
Methods inherited from class java.lang.Object |
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finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final int MINIMUM_VALID_SIZE
Constructor Detail |
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public LinearRing(Coordinate[] points, PrecisionModel precisionModel, int SRID)
LinearRing
with the given points.
points
- points forming a closed and simple linestring, or
null
or an empty array to create the empty geometry.
This array must not contain null
elements.precisionModel
- the specification of the grid of allowable points
for this LinearRing
SRID
- the ID of the Spatial Reference System used by this
LinearRing
java.lang.IllegalArgumentException
- if the ring is not closed, or has too few pointspublic LinearRing(CoordinateSequence points, GeometryFactory factory)
LinearRing
with the vertices
specifed by the given CoordinateSequence
.
points
- a sequence points forming a closed and simple linestring, or
null
to create the empty geometry.
java.lang.IllegalArgumentException
- if the ring is not closed, or has too few pointsMethod Detail |
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public int getBoundaryDimension()
Dimension.FALSE
, since by definition LinearRings do
not have a boundary.
getBoundaryDimension
in class LineString
public boolean isClosed()
isClosed
in class LineString
public java.lang.String getGeometryType()
Geometry
getGeometryType
in class LineString
Geometry
s actual classpublic Geometry reverse()
LineString
LineString
whose coordinates are in the reverse
order of this objects
reverse
in class LineString
LineString
with coordinates in the reverse order
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JTS Topology Suite version 1.13 | ||||||||
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SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |