---
title: NSAnimation.Curve.linear
framework: appkit
role: symbol
role_heading: Case
path: appkit/nsanimation/curve/linear
---

# NSAnimation.Curve.linear

Describes an animation in which there is no change in frame rate.

## Declaration

```swift
case linear
```

## See Also

### Constants

- [NSAnimation.Curve.easeInOut](appkit/nsanimation/curve/easeinout.md)
- [NSAnimation.Curve.easeIn](appkit/nsanimation/curve/easein.md)
- [NSAnimation.Curve.easeOut](appkit/nsanimation/curve/easeout.md)