A structure that contains width and height values.


struct CGSize


A CGSize structure is sometimes used to represent a distance vector, rather than a physical size. As a vector, its values can be negative. To normalize a CGRect structure so that its size is represented by positive values, call the standardized function.


Geometric Properties

var width: CGFloat

A width value.

var height: CGFloat

A height value.

Special Values

static var zero: CGSize

The size whose width and height are both zero.


Creates a size with zero width and height.

Transforming Sizes

func applying(CGAffineTransform) -> CGSize

Returns the height and width resulting from a transformation of an existing height and width.

Alternate Representations

var dictionaryRepresentation: CFDictionary

Returns a dictionary representation of the specified size.

init?(dictionaryRepresentation: CFDictionary)

Creates a size from a canonical dictionary representation.

var debugDescription: String

A textual representation of the size’s dimensions.

var customMirror: Mirror

A representation of the size’s structure and display style for use in debugging.

var customPlaygroundQuickLook: PlaygroundQuickLook

A representation of the size for use in Playgrounds.


Comparing Sizes

func equalTo(CGSize) -> Bool

Returns whether two sizes are equal.


init(width: Double, height: Double)

Creates a size with dimensions specified as floating-point values.

init(width: CGFloat, height: CGFloat)

Creates a size with dimensions specified as CGFloat values.

init(width: Int, height: Int)

Creates a size with dimensions specified as integer values.

Instance Methods

See Also

Geometric Data Types

struct CGFloat

The basic type for floating-point scalar values in Core Graphics and related frameworks.

struct CGPoint

A structure that contains a point in a two-dimensional coordinate system.

struct CGRect

A structure that contains the location and dimensions of a rectangle.

struct CGVector

A structure that contains a two-dimensional vector.

struct CGAffineTransform

An affine transformation matrix for use in drawing 2D graphics.