Class: QgsVectorLayerSelectedFeatureSource

class qgis.core.QgsVectorLayerSelectedFeatureSource(layer: QgsVectorLayer)

Bases: QgsFeatureSource, QgsExpressionContextScopeGenerator

Constructor for QgsVectorLayerSelectedFeatureSource, for selected features from the specified layer. The currently selected feature IDs are stored, so change to the layer selection after constructing the QgsVectorLayerSelectedFeatureSource will not be reflected.

QgsVectorLayerSelectedFeatureSource(QgsVectorLayerSelectedFeatureSource)

QgsFeatureSource subclass for the selected features from a QgsVectorLayer.

New in version 3.0.

Parameters

layer –

createExpressionContextScope(self) → QgsExpressionContextScope

Return type

QgsExpressionContextScope

featureCount(self) → int

Return type

int

fields(self) → QgsFields

Return type

QgsFields

getFeatures(self, request: QgsFeatureRequest = QgsFeatureRequest()) → QgsFeatureIterator

Parameters

request (QgsFeatureRequest = QgsFeatureRequest()) –

Return type

QgsFeatureIterator

hasSpatialIndex(self) → QgsFeatureSource.SpatialIndexPresence

Return type

QgsFeatureSource.SpatialIndexPresence

sourceCrs(self) → QgsCoordinateReferenceSystem

Return type

QgsCoordinateReferenceSystem

sourceName(self) → str

Return type

str

wkbType(self) → QgsWkbTypes.Type

Return type

QgsWkbTypes.Type