Class: QgsPointDisplacementRenderer

class qgis.core.QgsPointDisplacementRenderer(labelAttributeName: str = '')

Bases: qgis._core.QgsPointDistanceRenderer

Constructor for QgsPointDisplacementRenderer.

Parameters

labelAttributeName – optional attribute name for labeling points

A renderer that automatically displaces points with the same geographic location.

Enums

Methods

centerSymbol	Returns the symbol for the center of a displacement group (but not ownership of the symbol).
circleColor	Returns the color used for drawing the displacement group circle.
circleRadiusAddition	Returns the factor for increasing the ring size of displacement groups.
circleWidth	Returns the line width for the displacement group circle in mm.
clone
convertFromRenderer	Creates a QgsPointDisplacementRenderer from an existing renderer.
convertSymbolRotation
convertSymbolSizeScale
copyRendererData
create	Create a renderer from XML element
drawGroup
drawLabels
labelDistanceFactor	Returns the factor for label distance from the symbol.
placement	Returns the placement method used for dispersing the points.
renderFeatureWithSymbol
renderVertexMarker
renderVertexMarkerPolygon
renderVertexMarkerPolyline
save
setCenterSymbol	Sets the center symbol for a displacement group.
setCircleColor	Sets the color used for drawing the displacement group circle.
setCircleRadiusAddition	Sets a factor for increasing the ring size of displacement groups.
setCircleWidth	Sets the line width for the displacement group circle.
setLabelDistanceFactor	Sets a factor for increasing the label distances from the symbol.
setPlacement	Sets the placement method used for dispersing the points.
startRender
stopRender
usedAttributes

Signals

Attributes

ConcentricRings
Grid
Ring

ConcentricRings = 1

Grid = 2

class Placement

Bases: int

Ring = 0

centerSymbol(self) → QgsMarkerSymbol

Returns the symbol for the center of a displacement group (but not ownership of the symbol).

See also

setCenterSymbol()

circleColor(self) → QColor

Returns the color used for drawing the displacement group circle.

See also

setCircleColor()

See also

circleWidth()

circleRadiusAddition(self) → float

Returns the factor for increasing the ring size of displacement groups.

See also

setCircleRadiusAddition()

circleWidth(self) → float

Returns the line width for the displacement group circle in mm.

See also

setCircleWidth()

See also

circleColor()

clone(self) → QgsPointDisplacementRenderer

convertFromRenderer(renderer: QgsFeatureRenderer) → QgsPointDisplacementRenderer

Creates a QgsPointDisplacementRenderer from an existing renderer.

Returns

a new renderer if the conversion was possible, otherwise None.

New in version 2.5.

convertSymbolRotation()

convertSymbolSizeScale()

copyRendererData()

create(symbologyElem: QDomElement, context: QgsReadWriteContext) → QgsFeatureRenderer

Create a renderer from XML element

drawGroup()

drawLabels()

labelDistanceFactor(self) → float

Returns the factor for label distance from the symbol.

See also

setLabelDistanceFactor()

New in version 3.8.

placement(self) → QgsPointDisplacementRenderer.Placement

Returns the placement method used for dispersing the points.

See also

setPlacement()

New in version 2.12.

renderFeatureWithSymbol()

renderVertexMarker()

renderVertexMarkerPolygon()

renderVertexMarkerPolyline()

save(self, doc: QDomDocument, context: QgsReadWriteContext) → QDomElement

setCenterSymbol(self, symbol: QgsMarkerSymbol)

Sets the center symbol for a displacement group.

Parameters

symbol – new center symbol. Ownership is transferred to the renderer.

See also

centerSymbol()

setCircleColor(self, color: Union[QColor, Qt.GlobalColor])

Sets the color used for drawing the displacement group circle.

Parameters

color – circle color

See also

circleColor()

See also

setCircleWidth()

setCircleRadiusAddition(self, distance: float)

Sets a factor for increasing the ring size of displacement groups.

Parameters

distance – addition factor

See also

circleRadiusAddition()

setCircleWidth(self, width: float)

Sets the line width for the displacement group circle.

Parameters

width – line width in mm

See also

circleWidth()

See also

setCircleColor()

setLabelDistanceFactor(self, factor: float)

Sets a factor for increasing the label distances from the symbol.

Parameters

factor – addition factor

See also

labelDistanceFactor()

New in version 3.8.

setPlacement(self, placement: QgsPointDisplacementRenderer.Placement)

Sets the placement method used for dispersing the points.

Parameters

placement – placement method

See also

placement()

New in version 2.12.

startRender(self, context: QgsRenderContext, fields: QgsFields)

stopRender(self, context: QgsRenderContext)

usedAttributes(self, context: QgsRenderContext) → Set[str]