PySide6.QtCanvasPainter.QCanvasRadialGradient

class QCanvasRadialGradient

QCanvasRadialGradient is a brush for radial gradient painting.

Details

Radial gradient interpolate colors between start and end points, creating a circle shaped gradient. The gradient is controlled with centerPosition() , outerRadius() and innerRadius() .

../../_images/qcradialgradient-gallery.webp

Here is a simple example:

qcradialgradient-example1

 
QRectF rect1(0, 0, 200, 200);
QCanvasRadialGradient rg(rect1.center(), 100, 0);
rg.setColorAt(0.0, "#fdbb2d");
rg.setColorAt(0.6, "#b21f1f");
rg.setColorAt(1.0, "#1a2a6c");
p->setFillStyle(rg);
p->fillRect(rect1);

Inheritance diagram of PySide6.QtCanvasPainter.QCanvasRadialGradient

Synopsis

Methods

Note

This documentation may contain snippets that were automatically translated from C++ to Python. We always welcome contributions to the snippet translation. If you see an issue with the translation, you can also let us know by creating a ticket on https:/bugreports.qt.io/projects/PYSIDE

__init__()

Constructs a default radial gradient. Gradient center position is (0, 0). Gradient outer radius is 100.0 and inner radius is 0.0. Gradient start color is white (255, 255, 255) and end color transparent black (0, 0, 0, 0).

__init__(center, outerRadius[, innerRadius=0.0f])
Parameters:

  • center – QPointF

  • outerRadius – float

  • innerRadius – float

Constructs a radial gradient. Gradient center position is center. Gradient outer radius is outerRadius and inner radius is innerRadius. Gradient start color is white (255,255,255) and end color transparent black (0, 0, 0, 0).

__init__(centerX, centerY, outerRadius[, innerRadius=0.0f])
Parameters:

  • centerX – float

  • centerY – float

  • outerRadius – float

  • innerRadius – float

Constructs a radial gradient. Gradient center position is ( centerX, centerY). Gradient outer radius is outerRadius and inner radius is innerRadius. Gradient start color is white (255, 255, 255) and end color transparent black (0, 0, 0, 0).

centerPosition()
Return type:

QPointF

Returns the center point of radial gradient.

innerRadius()
Return type:

float

Returns the inner radius of radial gradient.

See also

setInnerRadius()

outerRadius()
Return type:

float

Returns the outer radius of radial gradient.

See also

setOuterRadius()

setCenterPosition(center)
Parameters:

center – QPointF

Sets the center point of radial gradient to center.

setCenterPosition(x, y)
Parameters:

  • x – float

  • y – float

Sets the center point of radial gradient to ( x, y).

See also

centerPosition()

setInnerRadius(radius)
Parameters:

radius – float

Sets the inner radius of radial gradient to radius. Start color will be drawn at this radius from center position. The default inner radius is 0.0 meaning that gradient starts directly from center position.

See also

innerRadius()

setOuterRadius(radius)
Parameters:

radius – float

Sets the outer radius of radial gradient to radius. End color will be drawn at this radius from center position.

See also

outerRadius()