WhichPolygon<T> class

Index for matching points against a set of GeoJSON polygons.

Constructors

WhichPolygon(Iterable<Map<String, dynamic>> features)

Reads a GeoJSON-like collection of features, and stores all polygon and multipolygon geometries along with their properties in an r-tree.

WhichPolygon.fromSerialized(dynamic data)

Instantiates the class using an object from serialize.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

all(double lon, double lat) → List<T>

Returns all polygons that contain the (lon, lat) location.

bbox(double minLon, double minLat, double maxLon, double maxLat) → List<T>

Returns all polygons that intersect with the given bounding box.

call(double lon, double lat) → T?

Returns a single polygon matching the location. An alias for one.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

one(double lon, double lat) → T?

Returns a single polygon containing the (lon, lat) location. Or null if nothing is found.

serialize() → dynamic

Returns a serializable object that can be passed between threads.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited