FeatureCollection class
A FeatureCollection is a collection of Features.
Constructors
-
FeatureCollection(List<
Feature> features) -
FeatureCollection.fromJson(Map<
String, dynamic> json) -
Creates a FeatureCollection from a JSON object.
factory
- FeatureCollection.fromWKT(String wkt)
-
Creates a FeatureCollection from a WKT string.
factory
Properties
- bbox → BoundingBox
-
Returns the BoundingBox of the FeatureCollection
If the FeatureCollection is empty, returns a BoundingBox.empty
no setter
- center → Point
-
Gets the center Point of the FeatureCollection.
This is an average of all the Points that create the Features in the FeatureCollection.
no setter
- convexHull → Polygon
-
Returns the convex hull of the FeatureCollection, which is the smallest convex Polygon that contains all the Points in the FeatureCollection.
no setter
- envelope → Polygon
-
Returns the BoundingBox's Polygon of the FeatureCollection.
If the FeatureCollection is empty, returns a
Polygon([]).no setter -
features
↔ List<
Feature> -
getter/setter pair
- hashCode → int
-
The hash code for this object.
no setterinherited
- isEmpty → bool
-
Returns if the FeatureCollection is empty.
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
explode(
) → FeatureCollection - Creates a FeatureCollection of Points from the geometries of the Features contained within.
-
isCollectionOf(
String type) → bool -
Returns whether all the Features in the FeatureCollection are of the specified
type. If the FeatureCollection is empty, returns false. If thetypeis not a valid geometry type, returns false. -
nearestPointTo(
Point point) → Point? -
Returns the Point with minimum distance between the FeatureCollection and the
point. If the FeatureCollection is empty, returns an empty FeatureCollection. -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toJson(
) → Map< String, dynamic> - Converts the FeatureCollection to a GEOJSON FeatureCollection object.
-
toString(
) → String -
A string representation of this object.
override
-
toWKT(
) → String - Converts the FeatureCollection to a WKT string.
Operators
-
operator +(
dynamic other) → FeatureCollection -
Returns the addition of the current FeatureCollection and the
other, which is a Feature, a List of Features, or FeatureCollection. If theotheris a Feature, it is added to the FeatureCollection. If theotheris a FeatureCollection, it is added to the FeatureCollection. If theotheris not a Feature or FeatureCollection, it throws an ArgumentError. -
operator ==(
Object other) → bool -
The equality operator.
inherited