Structureswift 6.0.3Foundation
AffineTransform
AffineTransform represents an affine transformation matrix of the following form:
struct AffineTransform[ m11 m12 0 ]
[ m21 m22 0 ]
[ tX tY 1 ]AffineTransform represents an affine transformation matrix of the following form:
struct AffineTransform[ m11 m12 0 ]
[ m21 m22 0 ]
[ tX tY 1 ]import Foundationprotocol CopyableA type whose values can be implicitly or explicitly copied.
protocol CustomDebugStringConvertibleA type with a customized textual representation suitable for debugging purposes.
protocol CustomStringConvertibleA type with a customized textual representation.
protocol DecodableA type that can decode itself from an external representation.
protocol EncodableA type that can encode itself to an external representation.
protocol EquatableA type that can be compared for value equality.
protocol Escapableprotocol Hashable : EquatableA type that can be hashed into a Hasher to produce an integer hash value.
protocol ReferenceConvertible : CustomDebugStringConvertible, CustomStringConvertible, HashableDecorates types which are backed by a Foundation reference type.
protocol Sendableinit() Creates an affine transformation matrix with identity values.
init(from decoder: any Decoder) throws init(m11: CGFloat, m12: CGFloat, m21: CGFloat, m22: CGFloat, tX: CGFloat, tY: CGFloat) Creates an affine transformation.
init(rotationByDegrees angle: CGFloat) Creates an affine transformation matrix from a rotation value (angle in degrees). The matrix takes the following form:
init(rotationByRadians angle: CGFloat) Creates an affine transformation matrix from rotation value (angle in radians). The matrix takes the following form:
init(scale factor: CGFloat) Creates an affine transformation matrix from scaling a single value. The matrix takes the following form:
init(scaleByX x: CGFloat, byY y: CGFloat) Creates an affine transformation matrix from scaling values. The matrix takes the following form:
init(translationByX x: CGFloat, byY y: CGFloat) Creates an affine transformation matrix from translation values. The matrix takes the following form:
static let identity: AffineTransformAn identity affine transformation matrix
var debugDescription: String { get }A textual description of the transform suitable for debugging.
var description: String { get }A textual description of the transform.
var m11: CGFloatvar m12: CGFloatvar m21: CGFloatvar m22: CGFloatvar tX: CGFloatvar tY: CGFloatmutating func append(_ transform: AffineTransform) Mutates an affine transformation by appending the specified matrix.
func encode(to encoder: any Encoder) throws mutating func invert() Inverts the transformation matrix if possible. Matrices with a determinant that is less than the smallest valid representation of a double value greater than zero are considered to be invalid for representing as an inverse. If the input AffineTransform can potentially fall into this case then the inverted() method is suggested to be used instead since that will return an optional value that will be nil in the case that the matrix cannot be inverted.
func inverted() -> AffineTransform? Returns an inverted version of the matrix if possible, or nil if not.
mutating func prepend(_ transform: AffineTransform) Mutates an affine transformation by prepending the specified matrix.
mutating func rotate(byDegrees angle: CGFloat) Mutates an affine transformation matrix from a rotation value (angle α in degrees). The matrix takes the following form:
mutating func rotate(byRadians angle: CGFloat) Mutates an affine transformation matrix from a rotation value (angle α in radians). The matrix takes the following form:
mutating func scale(_ scale: CGFloat) Mutates an affine transformation matrix to perform the given scaling in both x and y dimensions.
mutating func scale(x: CGFloat, y: CGFloat) Mutates an affine transformation matrix to perform a scaling in each of the x and y dimensions.
func transform(_ size: CGSize) -> CGSize Applies the transform to the specified size and returns the result.
func transform(_ point: CGPoint) -> CGPoint Applies the transform to the specified point and returns the result.
mutating func translate(x: CGFloat, y: CGFloat) typealias ReferenceType = NSAffineTransformstatic func != (lhs: Self, rhs: Self) -> Bool Returns a Boolean value indicating whether two values are not equal.