# USDValue.Vec2d A 2-component double-precision vector. ``` @frozen struct Vec2d ``` ## Topics ### Initializers [`init()`](/documentation/USDKit/USDValue/Vec2d/init()) Creates a zero vector. [`init(SIMD2)`](/documentation/USDKit/USDValue/Vec2d/init(_:)) Creates a vector from a `SIMD2`. [`init(Double, Double)`](/documentation/USDKit/USDValue/Vec2d/init(_:_:)) Creates a vector with the given components. ### Instance Properties [`var simd: SIMD2`](/documentation/USDKit/USDValue/Vec2d/simd) The vector as a `SIMD2`. [`var x: Double`](/documentation/USDKit/USDValue/Vec2d/x) [`var y: Double`](/documentation/USDKit/USDValue/Vec2d/y) ### Subscripts [`subscript(Int) -> Double`](/documentation/USDKit/USDValue/Vec2d/subscript(_:)) Accesses the component at the specified index. ## Relationships ### Conforms To [`Escapable`](/documentation/Swift/Escapable) [`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable) [`Hashable`](/documentation/Swift/Hashable) [`MetadataValue`](/documentation/USDKit/USDStage/Object/MetadataValue) [`USDValueProtocol`](/documentation/USDKit/USDValueProtocol) [`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible) [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Value`](/documentation/USDKit/USDPrim/Attribute/Value) [`Sendable`](/documentation/Swift/Sendable) [`Copyable`](/documentation/Swift/Copyable) [`Equatable`](/documentation/Swift/Equatable) --- 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)