GeometryComponentFilter class abstract

Geometry classes support the concept of applying a GeometryComponentFilter filter to the Geometry. The filter is applied to every component of the Geometry which is itself a Geometry and which does not itself contain any components. (For instance, all the {@link LinearRing}s in {@link Polygon}s are visited, but in a {@link MultiPolygon} the {@link Polygon}s themselves are not visited.) Thus the only classes of Geometry which must be handled as arguments to {@link #filter} are {@link LineString}s, {@link LinearRing}s and {@link Point}s.

A GeometryComponentFilter filter can either record information about the Geometry or change the Geometry in some way. GeometryComponentFilter is an example of the Gang-of-Four Visitor pattern.

@version 1.7

Implementers

Constructors

GeometryComponentFilter()

Properties

hashCode int
The hash code for this object.
no setterinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited

Methods

filter(Geometry geom) → void
Performs an operation with or on geom.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() String
A string representation of this object.
inherited

Operators

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