Class: QgsVectorLayerFeatureSource

Partial snapshot of vector layer’s state (only the members necessary for access to features).

Class Hierarchy

Base classes

QgsAbstractFeatureSource

Base class that can be used for any class that is capable of returning features.

Methods

crs	Returns the coordinate reference system for features retrieved from this source.
fields	Returns the fields that will be available for features that are retrieved from this source.
id	Returns the layer id of the source layer.

class qgis.core.QgsVectorLayerFeatureSource

Bases: QgsAbstractFeatureSource

__init__(layer: QgsVectorLayer | None)

Constructor for QgsVectorLayerFeatureSource.

Parameters:

layer (Optional[QgsVectorLayer]) – source layer

crs(self) → QgsCoordinateReferenceSystem

Returns the coordinate reference system for features retrieved from this source.

Return type:

QgsCoordinateReferenceSystem

fields(self) → QgsFields

Returns the fields that will be available for features that are retrieved from this source.

Return type:

QgsFields

id(self) → str

Returns the layer id of the source layer.

Added in version 3.4.

Return type:

str