Class: QgsTransformEffect

A paint effect which applies transformations (such as move, scale and rotate) to a picture.

Class Hierarchy

Base classes

QgsPaintEffect

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

Methods

reflectX	Returns whether transform will be reflected along the x-axis
reflectY	Returns whether transform will be reflected along the y-axis
rotation	Returns the transform rotation, in degrees clockwise.
scaleX	Returns the x axis scaling factor.
scaleY	Returns the y axis scaling factor.
setReflectX	Sets whether to reflect along the x-axis
setReflectY	Sets whether to reflect along the y-axis
setRotation	Sets the transform rotation, in degrees clockwise.
setScaleX	Sets the x axis scaling factor.
setScaleY	Sets the y axis scaling factor.
setShearX	Sets the x axis shearing factor.
setShearY	Sets the y axis shearing factor.
setTranslateMapUnitScale	Sets the map unit scale used for the transform translation.
setTranslateUnit	Sets the units used for the transform translation.
setTranslateX	Sets the transform x translation.
setTranslateY	Sets the transform y translation.
shearX	Returns the x axis shearing factor.
shearY	Returns the y axis shearing factor.
translateMapUnitScale	Returns the map unit scale used for the transform translation.
translateUnit	Returns the units used for the transform translation.
translateX	Returns the transform x translation.
translateY	Returns the transform y translation.

Static Methods

create

Creates a new QgsTransformEffect effect from a properties string map.

class qgis.core.QgsTransformEffect

Bases: QgsPaintEffect

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

Creates a new QgsTransformEffect effect from a properties string map.

Parameters:

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

Return type:

Optional[QgsPaintEffect]

Returns:

new QgsTransformEffect

reflectX(self) → bool

Returns whether transform will be reflected along the x-axis

Return type:

bool

Returns:

True if transform will reflect horizontally

See also

setReflectX()

See also

reflectY()

reflectY(self) → bool

Returns whether transform will be reflected along the y-axis

Return type:

bool

Returns:

True if transform will reflect horizontally

See also

setReflectY()

See also

reflectX()

rotation(self) → float

Returns the transform rotation, in degrees clockwise.

See also

setRotation()

Return type:

float

scaleX(self) → float

Returns the x axis scaling factor.

Return type:

float

Returns:

x axis scaling factor, where 1.0 = no scaling

See also

setScaleX()

See also

scaleY()

scaleY(self) → float

Returns the y axis scaling factor.

Return type:

float

Returns:

y axis scaling factor, where 1.0 = no scaling

See also

setScaleY()

See also

scaleX()

setReflectX(self, reflectX: bool)

Sets whether to reflect along the x-axis

Parameters:

reflectX (bool) – True to reflect horizontally

See also

reflectX()

See also

setReflectY()

setReflectY(self, reflectY: bool)

Sets whether to reflect along the y-axis

Parameters:

reflectY (bool) – True to reflect horizontally

See also

reflectY()

See also

setReflectX()

setRotation(self, rotation: float)

Sets the transform rotation, in degrees clockwise.

See also

rotation()

Parameters:

rotation (float)

setScaleX(self, scaleX: float)

Sets the x axis scaling factor.

Parameters:

scaleX (float) – factor to scale x axis by, where 1.0 = no scaling

See also

scaleX()

See also

setScaleY()

setScaleY(self, scaleY: float)

Sets the y axis scaling factor.

Parameters:

scaleY (float) – factor to scale y axis by, where 1.0 = no scaling

See also

scaleX()

setShearX(self, shearX: float)

Sets the x axis shearing factor.

Parameters:

shearX (float) – x axis shearing

See also

shearX()

See also

setShearY()

setShearY(self, shearY: float)

Sets the y axis shearing factor.

Parameters:

shearY (float) – y axis shearing

See also

shearY()

See also

setShearX()

setTranslateMapUnitScale(self, scale: QgsMapUnitScale)

Sets the map unit scale used for the transform translation.

Parameters:

scale (QgsMapUnitScale) – map unit scale for translation

See also

translateMapUnitScale()

See also

setTranslateX()

See also

setTranslateY()

See also

setTranslateUnit()

setTranslateUnit(self, unit: Qgis.RenderUnit)

Sets the units used for the transform translation.

Parameters:

unit (Qgis.RenderUnit) – units for translation

See also

translateUnit()

See also

setTranslateX()

See also

setTranslateY()

See also

setTranslateMapUnitScale()

setTranslateX(self, translateX: float)

Sets the transform x translation.

Parameters:

translateX (float) – distance to translate along the x axis

See also

translateX()

See also

setTranslateY()

See also

setTranslateUnit()

See also

setTranslateMapUnitScale()

setTranslateY(self, translateY: float)

Sets the transform y translation.

Parameters:

translateY (float) – distance to translate along the y axis

See also

translateY()

See also

setTranslateX()

See also

setTranslateUnit()

See also

setTranslateMapUnitScale()

shearX(self) → float

Returns the x axis shearing factor.

Return type:

float

Returns:

x axis shearing

See also

setShearX()

See also

shearY()

shearY(self) → float

Returns the y axis shearing factor.

Return type:

float

Returns:

y axis shearing

See also

setShearY()

See also

shearX()

translateMapUnitScale(self) → QgsMapUnitScale

Returns the map unit scale used for the transform translation.

Return type:

QgsMapUnitScale

Returns:

map unit scale for translation

See also

setTranslateMapUnitScale()

See also

translateX()

See also

translateY()

See also

translateUnit()

translateUnit(self) → Qgis.RenderUnit

Returns the units used for the transform translation.

Return type:

Qgis.RenderUnit

Returns:

units for translation

See also

setTranslateUnit()

See also

translateX()

See also

translateY()

See also

translateMapUnitScale()

translateX(self) → float

Returns the transform x translation.

Return type:

float

Returns:

X distance translated along the x axis

See also

setTranslateX()

See also

translateY()

See also

translateUnit()

See also

translateMapUnitScale()

translateY(self) → float

Returns the transform y translation.

Return type:

float

Returns:

Y distance translated along the y axis

See also

setTranslateY()

See also

translateX()

See also

translateUnit()

See also

translateMapUnitScale()