FeatureCollectionTable QML Type

An individual table that can be stored in a FeatureCollection. More...

• List of all members, including inherited members
• Obsolete members

Properties

• featureSet : FeatureSet
• fields : list<Field>
• geoElements : list<GeoElement>
• geometryType : Enums.GeometryType
• hasM : bool
• hasZ : bool
• iterator : FeatureIterator
• layerInfo : ArcGISFeatureLayerInfo
• renderer : Renderer
• spatialReference : SpatialReference

Signals

• featureSetChanged()
• fieldsChanged()
• geoElementsChanged()
• geometryTypeChanged()
• hasMChanged()
• hasZChanged()
• layerInfoChanged()
• rendererChanged()
• spatialReferenceChanged()

Methods

• void setSymbolOverride(Feature feature, Symbol symbol)
• Symbol symbolOverride(Feature feature)

Detailed Description

Represents an individual feature table in a FeatureCollection. It consists of a feature definition (table schema) and a set of features that match that feature definition. It offers support for overriding the renderer symbology on a per-feature basis.

To create a FeatureCollectionTable, specify the fields, geometry type, and spatial reference of features in this table. Or, create it from a list of GeoElements or features already existing in another FeatureSet (for example, a query result).

If a FeatureCollectionTable is created with all the information needed to instantiate and load it, it will automatically load and you can use it to create a Feature. However, if it is default constructed without all the required information, then you must explicitly load the FeatureCollectionTable before using it to create a Feature.

// The following fails to create a Feature from the default-constructed
// FeatureCollectionTable because it was not loaded automatically.
var inputFeatures1 = ArcGISRuntimeEnvironment.createObject("FeatureCollectionTable");
inputFeatures1.geometryType = Enums.GeometryTypePoint;
inputFeatures1.spatialReference = Factory.SpatialReference.createWebMercator();
var inputFeature1 = inputFeatures1.createFeature(); // inputFeature will be null

// The following successfully creates a new Feature because the
// FeatureCollectionTable was created with enough information to
// instantiate and load itself.
var inputFeatures2 = ArcGISRuntimeEnvironment.createObject("FeatureCollectionTable",
                                                           {geometryType: Enums.GeometryTypePoint,
                                                            spatialReference: Factory.SpatialReference.createWebMercator()});
var inputFeature2 = inputFeatures2.createFeature(); // inputFeature2 will be a Feature

See also FeatureSet.

Property Documentation

Signal Documentation

Method Documentation