Feature QML Type
A representation of a real-world geographic entity. More...
| Import Statement: | import Esri.ArcGISRuntime |
| Since: | Esri.ArcGISRuntime 100.0 |
| Inherits: | |
| Inherited By: |
- List of all members, including inherited members
- Feature is part of QML Type List.
Properties
- attributes : AttributeListModel
- featureObjectType : Enums.FeatureObjectType
- featureTable : FeatureTable
- geometry : Geometry
Signals
Methods
- bool refresh()
Detailed Description
Note: You cannot declare or create a component of this type in QML code.
Features are composed of both a geometry (point, polyline, or polygon) and attributes. The geometry represents the location and shape of the real-world entity; the attributes (key-value pairs) represent the fields and values that describe the entity. Examples of features include roads, fire hydrants, and property boundaries. Applications can access features from a feature layer or a feature collection to visualize the feature's geographic and attribute information, execute spatial queries, perform analyses, or make edits to the feature's data directly. Feature attribute values can be changed, but attribute definitions cannot be added, deleted, or modified.
Features are typically persisted in a data source (such as a feature service, geodatabase, shapefile, GeoJSON file, or GeoPackage) and have a common attribute schema. Features can also be stored directly in a feature collection in a map or scene. A feature collection groups logically related tables of features that may have different schema, geometry types, and symbology. See FeatureCollectionLayer for more information.
Feature is the base class for ArcGISFeature. ArcGIS features are stored in ArcGIS specific data sources such as GeodatabaseFeatureTable and ServiceFeatureTable.
See also ArcGISFeature, ArcGISFeatureTable, GeoPackageFeatureTable, OgcFeatureCollectionTable, ShapefileFeatureTable, WfsFeatureTable, and FeatureCollectionTable.
Property Documentation
[read-only] attributes : AttributeListModel |
A list model of all feature attributes and values.
[read-only] featureObjectType : Enums.FeatureObjectType |
Returns the feature type (read-only).
See also Enums.FeatureObjectType.
[read-only] featureTable : FeatureTable |
Returns the FeatureTable that this feature belongs to (read-only).
geometry : Geometry |
The feature's geometry.
Signal Documentation
geometryChanged() |
Emitted when the geometry property of this Feature changes.
Note: The corresponding handler is onGeometryChanged.
Method Documentation
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Resets the attributes and geometry to the values in the data source, returning true on success or false otherwise.
Discards any in-memory changes to the feature that have not been applied to its table, and reloads the feature's geometry and all attributes.
This method was introduced in Esri.ArcGISRuntime 100.4.