---
title: "init(vector:)"
framework: spatial
role: symbol
role_heading: Initializer
path: "spatial/rotationaxis3d/init(vector:)"
---

# init(vector:)

Creates a rotation axis from a three-element double-precision vector.

## Declaration

```swift
init(vector: simd_double3)
```

## Parameters

- `vector`: A double-precision vector that specifies the coordinates.

## See Also

### Creating a 3D rotation axis structure

- [init()](spatial/rotationaxis3d/init().md)
- [init(_:)](spatial/rotationaxis3d/init(_:)-96si4.md)
- [init(_:)](spatial/rotationaxis3d/init(_:)-804sx.md)
- [init(_:)](spatial/rotationaxis3d/init(_:)-2zdal.md)
- [init(x:y:z:)](spatial/rotationaxis3d/init(x:y:z:)-3z5nm.md)
- [init(x:y:z:)](spatial/rotationaxis3d/init(x:y:z:)-1x93q.md)