---
title: rollAngle
framework: uikit
role: symbol
role_heading: Instance Property
path: uikit/uitouch/rollangle
---

# rollAngle

A value that represents the current barrel-roll angle of Apple Pencil.

## Declaration

```swift
var rollAngle: CGFloat { get }
```

## Discussion

Discussion For models of Apple Pencil that don’t support barrel-roll angle data, the value of this property is 0.

## See Also

### Getting touch attributes

- [tapCount](uikit/uitouch/tapcount.md)
- [timestamp](uikit/uitouch/timestamp.md)
- [type](uikit/uitouch/type.md)
- [UITouch.TouchType](uikit/uitouch/touchtype.md)
- [phase](uikit/uitouch/phase-swift.property.md)
- [UITouch.Phase](uikit/uitouch/phase-swift.enum.md)
- [force](uikit/uitouch/force.md)
- [maximumPossibleForce](uikit/uitouch/maximumpossibleforce.md)
- [altitudeAngle](uikit/uitouch/altitudeangle.md)
- [azimuthAngle(in:)](uikit/uitouch/azimuthangle(in:).md)
- [azimuthUnitVector(in:)](uikit/uitouch/azimuthunitvector(in:).md)