Polygon<T extends Point<num>> class

A polygon with an exterior and optional interior boundaries.

Inheritance

• Object
• Bounded
• Geometry
• Polygon

Annotations

• @immutable

Constructors

Polygon(Iterable<LineString<T>> rings)

Create Polygon from rings with at least exterior boundary at index 0.

Polygon.fromPoints(Iterable<Iterable<T>> rings)

Create Polygon from rings with at least exterior boundary at index 0.

Polygon.make(Iterable<Iterable<Iterable<num>>> values, PointFactory<T> pointFactory, {Bounds<Point<num>>? bounds})

Create Polygon from values with a list of rings.

factory

Polygon.parse(String text, PointFactory<T> pointFactory, {ParseCoordsListList? parser})

Create Polygon parsed from text with a list of rings.

factory

Properties

bounds → Bounds<Point<num>>?

The bounds for this object (could be calculated if not explicitely set).

no setter

boundsExplicit → Bounds<Point<num>>?

The explicit bounds for this object when available.

no setter

coordinates → Iterable<Iterable<Position>>

Coordinates of all rings as 2-dimensional array of Position objects.

no setter

dimension → int

The topological dimension of this geometry.

no setter, override

exterior → LineString<T>

A linear ring forming an exterior boundary for this polygon.

no setter

hashCode → int

The hash code for this object.

no setter, inherited

interior → BoundedSeries<LineString<T>>

A series of interior rings (holes for this polygon) with 0 to N elements.

no setter

isEmpty → bool

True if this geometry is considered empty without data or coordinates.

no setter, override

isNotEmpty → bool

True if this geometry is NOT considered empty without data or coordinates.

no setter, inherited

onePoint → Point<num>?

Returns one of points contained by this geometry if it's not empty.

no setter, override

props → List<Object?>

The list of properties that will be used to determine whether two instances are equal.

no setter

rings → BoundedSeries<LineString<T>>

Linear rings with at least exterior boundary at index 0.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

stringify → bool?

If set to true, the toString method will be overridden to output this instance's props.

no setter, inherited

typeGeom → Geom

The type of this geometry.

no setter, override

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

project<R extends Point<num>>(Projection projection, {required CreatePosition<R> to}) → Polygon<R>

Returns a new geometry with all points projected using projection.

override

toString() → String

A string representation of this object.

override

toStringAs({TextWriterFormat<GeometryContent> format = DefaultFormat.geometry, int? decimals}) → String

A string representation of this geometry, with format applied.

inherited

transform(TransformPosition transform) → Polygon<T>

Returns a new geometry with all points transformed using transform.

override

writeTo(SimpleGeometryContent writer) → void

Writes this geometry object to writer.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

validate<T extends Point<num>>(Iterable<LineString<T>> rings) → BoundedSeries<LineString<T>>

Validate rings to have at least one exterior and all must be rings.