GeographyGeometryCollection class

Represents a PostGIS GeometryCollection — a heterogeneous collection of Geography values (points, line strings, polygons).

Implemented types

• Geography

Available extensions

• GeographyGeometryCollectionJsonExtension

Constructors

GeographyGeometryCollection({required List<Geography> geometries, int srid = Geography.defaultSrid})

Creates a new GeographyGeometryCollection.

const

GeographyGeometryCollection.fromBinary(Uint8List bytes)

Creates a GeographyGeometryCollection from its EWKB binary representation as returned by PostgreSQL for geography columns.

factory

Properties

geometries → List<Geography>

The geometries in this collection.

final

hashCode → int

The hash code for this object.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

srid → int

Spatial reference system identifier. Defaults to WGS 84 (EPSG:4326).

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toEwkt() → String

Returns the EWKT representation for PostGIS, e.g. SRID=4326;POINT(-0.12 51.5).

override

toJson() → String

Available on GeographyGeometryCollection, provided by the GeographyGeometryCollectionJsonExtension extension

Returns the EWKT representation as a String.

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

override