# Scalable3DProtocol A set of methods that defines the interface for Spatial entities that can scale. ``` protocol Scalable3DProtocol : SpatialTypeProtocol ``` ## Topics ### Instance Methods [`func scale(by: Self.Size)`](/documentation/Spatial/Scalable3DProtocol/scale(by:)) Scales the entity by the specified size. [`func scaleBy(x: Self.Scalar, y: Self.Scalar, z: Self.Scalar)`](/documentation/Spatial/Scalable3DProtocol/scaleBy(x:y:z:)) Scales the entity by the specified values. [`func scaled(by: Self.Size) -> Self`](/documentation/Spatial/Scalable3DProtocol/scaled(by:)) Returns the entity scaled by the specified size. [`func scaledBy(x: Self.Scalar, y: Self.Scalar, z: Self.Scalar) -> Self`](/documentation/Spatial/Scalable3DProtocol/scaledBy(x:y:z:)) Returns the entity scaled by the specified values. [`func uniformlyScale(by: Self.Scalar)`](/documentation/Spatial/Scalable3DProtocol/uniformlyScale(by:)) Uniformly scales the entity by the specified scalar value. [`func uniformlyScaled(by: Self.Scalar) -> Self`](/documentation/Spatial/Scalable3DProtocol/uniformlyScaled(by:)) Returns the entity uniformly scaled by the specified scalar value. ## Relationships ### Conforming Types [`Rect3DFloat`](/documentation/Spatial/Rect3DFloat) [`Vector3DFloat`](/documentation/Spatial/Vector3DFloat) [`Size3D`](/documentation/Spatial/Size3D) [`Rect3D`](/documentation/Spatial/Rect3D) [`Size3DFloat`](/documentation/Spatial/Size3DFloat) [`Vector3D`](/documentation/Spatial/Vector3D) [`AffineTransform3D`](/documentation/Spatial/AffineTransform3D) [`ProjectiveTransform3DFloat`](/documentation/Spatial/ProjectiveTransform3DFloat) [`AffineTransform3DFloat`](/documentation/Spatial/AffineTransform3DFloat) [`ProjectiveTransform3D`](/documentation/Spatial/ProjectiveTransform3D) ### Inherits From [`Decodable`](/documentation/Swift/Decodable) [`Equatable`](/documentation/Swift/Equatable) [`Encodable`](/documentation/Swift/Encodable) [`SpatialTypeProtocol`](/documentation/Spatial/SpatialTypeProtocol) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)