Class: QgsSingleSymbolRenderer¶
-
class
qgis.core.
QgsSingleSymbolRenderer
(symbol: QgsSymbol)¶ Bases:
qgis._core.QgsFeatureRenderer
Constructor for QgsSingleSymbolRenderer.
The same
symbol
will be used to render every feature. Ownership ofsymbol
is transferred to the renderer.Enums
Methods
Creates a new single symbol renderer from an existing
renderer
.Creates a new single symbol renderer from an XML
element
, using the supplied read/writecontext
.Creates a new single symbol renderer from an SLD
element
.Returns configuration of appearance of legend when using data-defined size for marker symbols.
Configures appearance of legend when renderer is configured to use data-defined size for marker symbols.
Sets the symbol which will be rendered for every feature.
Returns the symbol which will be rendered for every feature.
Signals
Attributes
-
capabilities
(self) → QgsFeatureRenderer.Capabilities¶
-
clone
(self) → QgsSingleSymbolRenderer¶
-
convertFromRenderer
(renderer: QgsFeatureRenderer) → QgsSingleSymbolRenderer¶ Creates a new single symbol renderer from an existing
renderer
.- Returns
a new renderer if the conversion was possible, otherwise
None
.
New in version 2.5.
-
convertSymbolRotation
()¶
-
convertSymbolSizeScale
()¶
-
copyRendererData
()¶
-
create
(element: QDomElement, context: QgsReadWriteContext) → QgsFeatureRenderer¶ Creates a new single symbol renderer from an XML
element
, using the supplied read/writecontext
.The caller takes ownership of the returned renderer.
-
createFromSld
(element: QDomElement, geomType: QgsWkbTypes.GeometryType) → QgsFeatureRenderer¶ Creates a new single symbol renderer from an SLD
element
.The geometry type for features to be rendered must be specified via the
geomType
argument.The caller takes ownership of the returned renderer.
-
dataDefinedSizeLegend
(self) → QgsDataDefinedSizeLegend¶ Returns configuration of appearance of legend when using data-defined size for marker symbols. Will return
None
if the functionality is disabled.New in version 3.0.
-
dump
(self) → str¶
-
legendKeysForFeature
(self, feature: QgsFeature, context: QgsRenderContext) → Set[str]¶
-
legendSymbolItems
(self) → List[QgsLegendSymbolItem]¶
-
originalSymbolForFeature
(self, feature: QgsFeature, context: QgsRenderContext) → QgsSymbol¶
-
renderFeatureWithSymbol
()¶
-
renderVertexMarker
()¶
-
renderVertexMarkerPolygon
()¶
-
renderVertexMarkerPolyline
()¶
-
save
(self, doc: QDomDocument, context: QgsReadWriteContext) → QDomElement¶
-
setDataDefinedSizeLegend
(self, settings: QgsDataDefinedSizeLegend)¶ Configures appearance of legend when renderer is configured to use data-defined size for marker symbols. This allows configuring which values (symbol sizes) should be shown in the legend, whether to display different symbol sizes collapsed in one legend node or separated across multiple legend nodes etc.
When renderer does not use data-defined size or does not use marker symbols, these settings will be ignored. Takes ownership of the passed settings objects.
None
is a valid input that disables data-defined size legend.New in version 3.0.
-
setLegendSymbolItem
(self, key: str, symbol: QgsSymbol)¶
-
setSymbol
(self, s: QgsSymbol)¶ Sets the symbol which will be rendered for every feature. Ownership of the symbol is transferred to the renderer.
See also
-
startRender
(self, context: QgsRenderContext, fields: QgsFields)¶
-
stopRender
(self, context: QgsRenderContext)¶
-
symbol
(self) → QgsSymbol¶ Returns the symbol which will be rendered for every feature.
See also
-
symbolForFeature
(self, feature: QgsFeature, context: QgsRenderContext) → QgsSymbol¶
-
symbols
(self, context: QgsRenderContext) → List[QgsSymbol]¶
-
toSld
(self, doc: QDomDocument, element: QDomElement, props: Dict[str, str] = {})¶
-
usedAttributes
(self, context: QgsRenderContext) → Set[str]¶
-