Class: QgsLinearlyInterpolatedDiagramRenderer

Alters the size of rendered diagrams using linear scaling.

Class Hierarchy

Inheritance diagram of qgis.core.QgsLinearlyInterpolatedDiagramRenderer

Base classes

QgsDiagramRenderer

Evaluates and returns the diagram settings relating to a diagram for a specific feature.
class qgis.core.QgsLinearlyInterpolatedDiagramRenderer[source]

Bases: QgsDiagramRenderer

classificationAttributeExpression(self) → str[source]
Return type:

str

classificationAttributeIsExpression(self) → bool[source]
Return type:

bool

classificationField(self) → str[source]

Returns the field name used for interpolating the diagram size.

See also

setClassificationField()

Return type:

str

dataDefinedSizeLegend(self) → QgsDataDefinedSizeLegend | None[source]

Returns configuration of appearance of legend. Will return None if no configuration has been set.

Return type:

Optional[QgsDataDefinedSizeLegend]

abstract diagramSettings(self) → List[QgsDiagramSettings][source]

Returns list with all diagram settings in the renderer

diagramSettings(self, feature: QgsFeature, c: QgsRenderContext, s: QgsDiagramSettings) -> bool

Return type:

List[QgsDiagramSettings]

lowerSize(self) → QSizeF[source]
Return type:

QSizeF

lowerValue(self) → float[source]
Return type:

float

setClassificationAttributeExpression(self, expression: str | None)[source]
Parameters:

expression (Optional[str])

setClassificationAttributeIsExpression(self, isExpression: bool)[source]
Parameters:

isExpression (bool)

setClassificationField(self, field: str | None)[source]

Sets the field name used for interpolating the diagram size.

See also

classificationField()

Parameters:

field (Optional[str])

setDataDefinedSizeLegend(self, settings: QgsDataDefinedSizeLegend | None)[source]

Configures appearance of legend. Takes ownership of the passed settings objects.

Parameters:

settings (Optional[QgsDataDefinedSizeLegend])

setDiagramSettings(self, s: QgsDiagramSettings)[source]
Parameters:

s (QgsDiagramSettings)

setLowerSize(self, s: QSizeF)[source]
Parameters:

s (QSizeF)

setLowerValue(self, val: float)[source]
Parameters:

val (float)

setUpperSize(self, s: QSizeF)[source]
Parameters:

s (QSizeF)

setUpperValue(self, val: float)[source]
Parameters:

val (float)

upperSize(self) → QSizeF[source]
Return type:

QSizeF

upperValue(self) → float[source]
Return type:

float