Class: QgsSimpleMarkerSymbolLayerBase

class qgis.core.QgsSimpleMarkerSymbolLayerBase

Bases: QgsMarkerSymbolLayer

Abstract base class for simple marker symbol layers. Handles creation of the symbol shapes but leaves the actual drawing of the symbols to subclasses.

New in version 2.16.

QgsSimpleMarkerSymbolLayerBase(shape: Qgis.MarkerShape = Qgis.MarkerShape.Circle, size: float = DEFAULT_SIMPLEMARKER_SIZE, angle: float = DEFAULT_SIMPLEMARKER_ANGLE, scaleMethod: Qgis.ScaleMethod = DEFAULT_SCALE_METHOD) Constructor for QgsSimpleMarkerSymbolLayerBase.

Parameters

• shape – symbol shape for markers

• size – symbol size (in mm)

• angle – symbol rotation angle

• scaleMethod –

  scaling method for data defined scaling

  Enums

  Shape

  alias of MarkerShape

  Methods

  availableShapes	Returns a list of all available shape types.
  bounds	param point
  decodeShape	Attempts to decode a string representation of a shape name to the corresponding shape.
  encodeShape	Encodes a shape to its string representation.
  renderPoint	param point
  setShape	Sets the rendered marker shape.
  shape	Returns the shape for the rendered marker symbol.
  shapeIsFilled	Returns True if a symbol shape has a fill.
  startRender	param context
  stopRender	param context

Shape

alias of MarkerShape

availableShapes() → List[Qgis.MarkerShape]

Returns a list of all available shape types.

Return type

List[Qgis.MarkerShape]

bounds(self, point: Union[QPointF, QPoint], context: QgsSymbolRenderContext) → QRectF

Parameters

• point (Union[QPointF) –

• context (QgsSymbolRenderContext) –

Return type

QRectF

decodeShape(name: str) → Tuple[Qgis.MarkerShape, bool]

Attempts to decode a string representation of a shape name to the corresponding shape.

Parameters

• name (str) – encoded shape name

• ok – if specified, will be set to True if shape was successfully decoded

Return type

Tuple[Qgis.MarkerShape, bool]

Returns

decoded name

See also

encodeShape()

encodeShape(shape: Qgis.MarkerShape) → str

Encodes a shape to its string representation.

Parameters

shape (Qgis.MarkerShape) – shape to encode

Return type

str

Returns

encoded string

See also

decodeShape()

renderPoint(self, point: Union[QPointF, QPoint], context: QgsSymbolRenderContext)

Parameters

• point (Union[QPointF) –

• context (QgsSymbolRenderContext) –

setShape(self, shape: Qgis.MarkerShape)

Sets the rendered marker shape.

Parameters

shape (Qgis.MarkerShape) – new marker shape

See also

shape()

shape(self) → Qgis.MarkerShape

Returns the shape for the rendered marker symbol.

See also

setShape()

Return type

Qgis.MarkerShape

shapeIsFilled(shape: Qgis.MarkerShape) → bool

Returns True if a symbol shape has a fill.

Parameters

shape (Qgis.MarkerShape) – shape to test

Return type

bool

Returns

True if shape uses a fill, or False if shape uses lines only

startRender(self, context: QgsSymbolRenderContext)

Parameters

context (QgsSymbolRenderContext) –

stopRender(self, context: QgsSymbolRenderContext)

Parameters

context (QgsSymbolRenderContext) –