Structure

GraphicsContext.Shading

A color or pattern that you can use to outline or fill a path.

Declaration 宣言

struct Shading

Overview 概要

Use a shading instance to describe the color or pattern of a path that you outline with a method like stroke(_:with:style:), or of the interior of a region that you fill with the fill(_:with:style:) method. Get a shading instance by calling one of the Shading structure’s factory methods. You can base shading on:

A Color.
A Gradient.
Any type that conforms to ShapeStyle.
An Image.
What you’ve already drawn into the context.
A collection of other shading instances.

Topics 話題

Colors

static func color(Color) -> GraphicsContext.Shading

Returns a shading instance that fills with a color.

static func color(Color.RGBColorSpace, red: Double, green: Double, blue: Double, opacity: Double) -> GraphicsContext.Shading

Returns a shading instance that fills with a color in the given color space.

static func color(Color.RGBColorSpace, white: Double, opacity: Double) -> GraphicsContext.Shading

Returns a shading instance that fills with a monochrome color in the given color space.

Gradients

static func linearGradient(Gradient, startPoint: CGPoint, endPoint: CGPoint, options: GraphicsContext.GradientOptions) -> GraphicsContext.Shading

Returns a shading instance that fills a linear (axial) gradient.

static func radialGradient(Gradient, center: CGPoint, startRadius: CGFloat, endRadius: CGFloat, options: GraphicsContext.GradientOptions) -> GraphicsContext.Shading

Returns a shading instance that fills a radial gradient.

static func conicGradient(Gradient, center: CGPoint, angle: Angle, options: GraphicsContext.GradientOptions) -> GraphicsContext.Shading

Returns a shading instance that fills a conic (angular) gradient.

Other Shape Styles

static func style<S>(S) -> GraphicsContext.Shading

Returns a shading instance that fills with the given shape style.

static var foreground: GraphicsContext.Shading

A shading instance that fills with the foreground style from the graphics context’s environment.

Images

static func tiledImage(Image, origin: CGPoint, sourceRect: CGRect, scale: CGFloat) -> GraphicsContext.Shading

Returns a shading instance that tiles an image across the infinite plane.

Composite Shading Types

static func palette([GraphicsContext.Shading]) -> GraphicsContext.Shading

Returns a multilevel shading instance constructed from an array of shading instances.

static var backdrop: GraphicsContext.Shading

A shading instance that draws a copy of the current background.