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java.lang.Objectcom.vividsolutions.jts.operation.distance.DistanceOp
Find two points on two Geometrys which lie
within a given distance, or else are the closest points
on the geometries (in which case this also
provides the distance between the geometries).
The distance computation also finds a pair of points in the input geometries which have the minimum distance between them. If a point lies in the interior of a line segment, the coordinate computed is a close approximation to the exact point.
The algorithms used are straightforward O(n^2) comparisons. This worst-case performance could be improved on by using Voronoi techniques or spatial indexes.
| Constructor Summary | |
DistanceOp(Geometry g0,
Geometry g1)
Constructs a DistanceOp that computes the distance and closest points between the two specified geometries. |
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DistanceOp(Geometry g0,
Geometry g1,
double terminateDistance)
Constructs a DistanceOp that computes the distance and closest points between the two specified geometries. |
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| Method Summary | |
GeometryLocation[] |
closestLocations()
Report the locations of the closest points in the input geometries. |
Coordinate[] |
closestPoints()
Report the coordinates of the closest points in the input geometries. |
static Coordinate[] |
closestPoints(Geometry g0,
Geometry g1)
Compute the the closest points of two geometries. |
double |
distance()
Report the distance between the closest points on the input geometries. |
static double |
distance(Geometry g0,
Geometry g1)
Compute the distance between the closest points of two geometries. |
static boolean |
isWithinDistance(Geometry g0,
Geometry g1,
double distance)
Test whether two geometries lie within a given distance of each other. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public DistanceOp(Geometry g0,
Geometry g1)
g0 - a Geometryg1 - a Geometry
public DistanceOp(Geometry g0,
Geometry g1,
double terminateDistance)
g0 - a Geometryg1 - a GeometryterminateDistance - the distance on which to terminate the search| Method Detail |
public static double distance(Geometry g0,
Geometry g1)
g0 - a Geometryg1 - another Geometry
public static boolean isWithinDistance(Geometry g0,
Geometry g1,
double distance)
g0 - a Geometryg1 - another Geometrydistance - the distance to test
public static Coordinate[] closestPoints(Geometry g0,
Geometry g1)
g0 - a Geometryg1 - another Geometry
public double distance()
public Coordinate[] closestPoints()
Coordinates of the closest pointspublic GeometryLocation[] closestLocations()
GeometryLocations for the closest points
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