---
title: isAffine
framework: spatial
role: symbol
role_heading: Instance Property
path: spatial/projectivetransform3d/isaffine
---

# isAffine

A Boolean value that indicates whether the transform is affine.

## Declaration

```swift
var isAffine: Bool { get }
```

## See Also

### Checking characteristics

- [is3DProjection()](spatial/projectivetransform3d/is3dprojection().md)
- [isUniform(overDimensions:)](spatial/projectivetransform3d/isuniform(overdimensions:).md)
- [isInvertible](spatial/projectivetransform3d/isinvertible.md)