Feature<T extends Geometry> constructor
const
Feature<T extends Geometry> ({})
A new feature of optional id
, properties
, geometry
and bounds
.
The id
should be null, int, BigInt or String. Other types not allowed.
The properties
is used as a reference. Any changes on source reflect
also on feature properties.
If an optional bounds
for a new feature is not provided then geometry
bounds is used also as feature bounds when accessed.
Implementation
const Feature({
Object? id,
Map<String, Object?>? properties,
T? geometry,
Bounds? bounds,
}) : assert(
id == null || id is String || id is int || id is BigInt,
'Id should be null, int, BigInt or String',
),
_id = id,
_properties = properties,
_geometry = geometry,
_featureBounds = bounds;