PointLocator class

Computes the topological ({@link Location}) of a single point to a {@link Geometry}. A {@link BoundaryNodeRule} may be specified to control the evaluation of whether the point lies on the boundary or not The default rule is to use the the SFS Boundary Determination Rule

Notes:

  • {@link LinearRing}s do not enclose any area - points inside the ring are still in the EXTERIOR of the ring.
Instances of this class are not reentrant.

@version 1.7

Constructors

PointLocator()
PointLocator.fromRule(BoundaryNodeRule? boundaryRule)

Properties

boundaryRule ↔ BoundaryNodeRule
getter/setter pair
hashCode → int
The hash code for this object.
no setterinherited
isIn ↔ bool
getter/setter pair
numBoundaries ↔ int
getter/setter pair
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

computeLocation(Coordinate p, Geometry geom) → void
intersects(Coordinate p, Geometry geom) → bool
Convenience method to test a point for intersection with a Geometry @param p the coordinate to test @param geom the Geometry to test @return true if the point is in the interior or boundary of the Geometry
locate(Coordinate p, Geometry geom) → int
Computes the topological relationship ({@link Location}) of a single point to a Geometry. It handles both single-element and multi-element Geometries. The algorithm for multi-part Geometries takes into account the SFS Boundary Determination Rule.
locateInPolygon(Coordinate p, Polygon poly) → int
locateInPolygonRing(Coordinate p, LinearRing ring) → int
locateOnLineString(Coordinate p, LineString l) → int
locateOnPoint(Coordinate p, Point pt) → int
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited
updateLocationInfo(int loc) → void

Operators

operator ==(Object other) → bool
The equality operator.
inherited