Class: QgsBlurEffect

A paint effect which blurs a source picture, using a number of different blur methods.

Class Hierarchy

Base classes

QgsPaintEffect

Base class for visual effects which can be applied to QPicture drawings

Methods

blendMode	Returns the blend mode for the effect
blurLevel	Returns the blur level (radius)
blurMapUnitScale	Returns the map unit scale used for the blur strength (radius).
blurMethod	Returns the blur method (algorithm) used for performing the blur.
blurUnit	Returns the units used for the blur level (radius).
opacity	Returns the opacity for the effect.
setBlendMode	Sets the blend mode for the effect
setBlurLevel	Sets blur level (radius)
setBlurMapUnitScale	Sets the map unit scale used for the blur strength (radius).
setBlurMethod	Sets the blur method (algorithm) to use for performing the blur.
setBlurUnit	Sets the units used for the blur level (radius).
setOpacity	Sets the opacity for the effect.

Static Methods

create

Creates a new QgsBlurEffect effect from a properties string map.

Attributes

GaussianBlur
StackBlur

class qgis.core.QgsBlurEffect

Bases: QgsPaintEffect

class BlurMethod

Bases: int

GaussianBlur = 1

StackBlur = 0

blendMode(self) → QPainter.CompositionMode

Returns the blend mode for the effect

Return type:

QPainter.CompositionMode

Returns:

blend mode used for drawing the effect on to a destination paint device

See also

setBlendMode()

blurLevel(self) → float

Returns the blur level (radius)

Return type:

float

Returns:

blur level. Depending on the current blurMethod(), this parameter has different effects

See also

setBlurLevel()

See also

blurUnit()

See also

blurMapUnitScale()

See also

blurMethod()

blurMapUnitScale(self) → QgsMapUnitScale

Returns the map unit scale used for the blur strength (radius).

Return type:

QgsMapUnitScale

Returns:

map unit scale for blur strength

See also

setBlurMapUnitScale()

See also

blurLevel()

See also

blurUnit()

Added in version 3.4.9.

blurMethod(self) → QgsBlurEffect.BlurMethod

Returns the blur method (algorithm) used for performing the blur.

Return type:

QgsBlurEffect.BlurMethod

Returns:

blur method

See also

setBlurMethod()

blurUnit(self) → Qgis.RenderUnit

Returns the units used for the blur level (radius).

Return type:

Qgis.RenderUnit

Returns:

units for blur level

See also

setBlurUnit()

See also

blurLevel()

See also

blurMapUnitScale()

Added in version 3.4.9.

static create(map: Dict[str, Any]) → QgsPaintEffect | None

Creates a new QgsBlurEffect effect from a properties string map.

Parameters:

map (Dict[str, Any]) – encoded properties string map

Return type:

Optional[QgsPaintEffect]

Returns:

new QgsBlurEffect

opacity(self) → float

Returns the opacity for the effect.

Return type:

float

Returns:

opacity value between 0 and 1 inclusive, where 0 is fully transparent and 1 is fully opaque

See also

setOpacity()

setBlendMode(self, mode: QPainter.CompositionMode)

Sets the blend mode for the effect

Parameters:

mode (QPainter.CompositionMode) – blend mode used for drawing the effect on to a destination paint device

See also

blendMode()

setBlurLevel(self, level: float)

Sets blur level (radius)

Parameters:

level (float) – blur level. Depending on the current blurMethod(), this parameter has different effects

See also

blurLevel()

See also

setBlurUnit()

See also

setBlurMapUnitScale()

See also

setBlurMethod()

setBlurMapUnitScale(self, scale: QgsMapUnitScale)

Sets the map unit scale used for the blur strength (radius).

Parameters:

scale (QgsMapUnitScale) – map unit scale for blur strength

See also

blurMapUnitScale()

See also

setBlurLevel()

See also

setBlurUnit()

Added in version 3.4.9.

setBlurMethod(self, method: QgsBlurEffect.BlurMethod)

Sets the blur method (algorithm) to use for performing the blur.

Parameters:

method (QgsBlurEffect.BlurMethod) – blur method

See also

blurMethod()

setBlurUnit(self, unit: Qgis.RenderUnit)

Sets the units used for the blur level (radius).

Parameters:

unit (Qgis.RenderUnit) – units for blur level

See also

blurUnit()

See also

setBlurLevel()

See also

setBlurMapUnitScale()

Added in version 3.4.9.

setOpacity(self, opacity: float)

Sets the opacity for the effect.

Parameters:

opacity (float) – double between 0 and 1 inclusive, where 0 is fully transparent and 1 is fully opaque

See also

opacity()