QgsVectorLayerFeatureSource class

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

Contents

Base classes

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

Constructors, destructors, conversion operators

QgsVectorLayerFeatureSource(const QgsVectorLayer* layer) explicit
Constructor for QgsVectorLayerFeatureSource.

Public functions

auto crs() const -> QgsCoordinateReferenceSystem
Returns the coordinate reference system for features retrieved from this source.
auto fields() const -> QgsFields
Returns the fields that will be available for features that are retrieved from this source.
auto getFeatures(const QgsFeatureRequest& request = QgsFeatureRequest()) -> QgsFeatureIterator override
Gets an iterator for features matching the specified request.
auto id() const -> QString
Returns the layer id of the source layer.

Function documentation

QgsVectorLayerFeatureSource::QgsVectorLayerFeatureSource(const QgsVectorLayer* layer) explicit

Constructor for QgsVectorLayerFeatureSource.

Parameters
layer source layer

QgsCoordinateReferenceSystem QgsVectorLayerFeatureSource::crs() const

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

QgsFields QgsVectorLayerFeatureSource::fields() const

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

QgsFeatureIterator QgsVectorLayerFeatureSource::getFeatures(const QgsFeatureRequest& request = QgsFeatureRequest()) override

Gets an iterator for features matching the specified request.

Parameters
request The request
Returns A feature iterator

QString QgsVectorLayerFeatureSource::id() const

Returns the layer id of the source layer.