FeatureContent mixin
An interface to write geospatial feature objects to format encoders and object builders.
Supported feature object types: Feature and FeatureCollection
According to the OGC Glossary a feature is "a digital representation of a real world entity. It has a spatial domain, a temporal domain, or a spatial/temporal domain as one of its attributes. Examples of features include almost anything that can be placed in time and space, including desks, buildings, cities, trees, forest stands, ecosystems, delivery vehicles, snow removal routes, oil wells, oil pipelines, oil spill, and so on".
And a feature collection is "a set of related features managed as a group".
According to the GeoJSON specifiction Feature objects contain a Geometry object and additional members (like "id" and "properties"). A FeatureCollection object contains an array of Feature objects. Both may also contain "bbox" or bounding box. Any other members on Feature and FeatureCollection objects are foreign members, allowed property values or geometry objects, but not known by the GeoJSON model.
- Mixin Applications
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
-
feature(
{Object? id, WriteGeometries? geometry, Map< String, dynamic> ? properties, Box? bounds, Map<String, dynamic> ? custom}) → void -
Writes a feature with
id,geometryandproperties. -
featureCollection(
WriteFeatures features, {int? count, Box? bounds, Map< String, dynamic> ? custom}) → void -
Writes a feature collection with an array of
features. -
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