Class: QgsSimpleMarkerSymbolLayerBase¶

class qgis.core.QgsSimpleMarkerSymbolLayerBase(shape: QgsSimpleMarkerSymbolLayerBase.Shape = QgsSimpleMarkerSymbolLayerBase.Circle, size: float = DEFAULT_SIMPLEMARKER_SIZE, angle: float = DEFAULT_SIMPLEMARKER_ANGLE, scaleMethod: QgsSymbol.ScaleMethod = DEFAULT_SCALE_METHOD)¶

Bases: QgsMarkerSymbolLayer

Constructor for QgsSimpleMarkerSymbolLayerBase.

Parameters

shape (QgsSimpleMarkerSymbolLayerBase.Shape = QgsSimpleMarkerSymbolLayerBase.Circle) – symbol shape for markers
size (float = DEFAULT_SIMPLEMARKER_SIZE) – symbol size (in mm)
angle (float = DEFAULT_SIMPLEMARKER_ANGLE) – symbol rotation angle
scaleMethod (QgsSymbol.ScaleMethod = DEFAULT_SCALE_METHOD) – scaling method for data defined scaling

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

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

Attributes

Arrow = 7¶

ArrowHead = 13¶

ArrowHeadFilled = 14¶

Circle = 8¶

Cross = 9¶

Cross2 = 11¶

CrossFill = 10¶

DiagonalHalfSquare = 20¶

Diamond = 1¶

EquilateralTriangle = 5¶

HalfSquare = 19¶

Hexagon = 3¶

LeftHalfTriangle = 22¶

Line = 12¶

Pentagon = 2¶

QuarterCircle = 17¶

QuarterSquare = 18¶

RightHalfTriangle = 21¶

SemiCircle = 15¶

class Shape¶: Bases: int

Square = 0¶

Star = 6¶

ThirdCircle = 16¶

Triangle = 4¶

availableShapes() → List[QgsSimpleMarkerSymbolLayerBase.Shape]¶

Returns a list of all available shape types.

Return type: List[QgsSimpleMarkerSymbolLayerBase.Shape]

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

Parameters

point (Union[QPointF) –
context (QgsSymbolRenderContext) –

Return type

QRectF

decodeShape(name: str) → Tuple[QgsSimpleMarkerSymbolLayerBase.Shape, 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[QgsSimpleMarkerSymbolLayerBase.Shape, bool]

Returns

decoded name

See also

encodeShape()

encodeShape(shape: QgsSimpleMarkerSymbolLayerBase.Shape) → str¶

Encodes a shape to its string representation.

Parameters: shape (QgsSimpleMarkerSymbolLayerBase.Shape) – 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: QgsSimpleMarkerSymbolLayerBase.Shape)¶

Sets the rendered marker shape.

Parameters: shape (QgsSimpleMarkerSymbolLayerBase.Shape) – new marker shape

See also

shape()

shape(self) → QgsSimpleMarkerSymbolLayerBase.Shape¶

Returns the shape for the rendered marker symbol.

See also

setShape()

Return type: QgsSimpleMarkerSymbolLayerBase.Shape

shapeIsFilled(shape: QgsSimpleMarkerSymbolLayerBase.Shape) → bool¶

Returns True if a symbol shape has a fill.

Parameters: shape (QgsSimpleMarkerSymbolLayerBase.Shape) – 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) –