Class: QgsFeaturePool¶
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class
qgis.analysis.
QgsFeaturePool
(layer: QgsVectorLayer)¶ Bases:
qgis._core.QgsFeatureSink
Creates a new feature pool for
layer
.A feature pool is based on a vector layer and caches features.
Note
This class is a technology preview and unstable API.
New in version 3.4: Enums
Methods
The coordinate reference system of this layer.
Removes a feature from this pool.
The geometry type of this layer.
Retrieves the feature with the specified
id
intofeature
.Gets a pointer to the underlying layer.
The layer id of the layer.
Updates a feature in this pool.
Signals
Attributes
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crs
(self) → QgsCoordinateReferenceSystem¶ The coordinate reference system of this layer.
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deleteFeature
(self, fid: int)¶ Removes a feature from this pool. Implementations will remove the feature from the layer or from the data provider.
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geometryType
(self) → QgsWkbTypes.GeometryType¶ The geometry type of this layer.
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getFeature
(self, id: int, feature: QgsFeature, feedback: QgsFeedback = None) → bool¶ Retrieves the feature with the specified
id
intofeature
. It will be retrieved from the cache or from the underlying layer if unavailable. If the feature is neither available from the cache nor from the layer it will return false. Iffeedback
is specified, the call may return if the feedback is canceled.
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layer
(self) → QgsVectorLayer¶ Gets a pointer to the underlying layer. May return a
None
if the layer has been deleted. This must only be called from the main thread.
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layerId
(self) → str¶ The layer id of the layer.
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updateFeature
(self, feature: QgsFeature)¶ Updates a feature in this pool. Implementations will update the feature on the layer or on the data provider.
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