---
title: CMGyroData
framework: coremotion
role: symbol
role_heading: Class
path: coremotion/cmgyrodata
---

# CMGyroData

A single measurement of the device’s rotation rate.

## Declaration

```swift
class CMGyroData
```

## Overview

Overview An application receives or samples CMGyroData objects at regular intervals after calling the startGyroUpdates(to:withHandler:) method or the startGyroUpdates() method of the CMMotionManager class.

## Topics

### Getting the Rotation Rate

- [rotationRate](coremotion/cmgyrodata/rotationrate.md)
- [CMRotationRate](coremotion/cmrotationrate.md)
- [CMRotationRateData](coremotion/cmrotationratedata.md)
- [CMRecordedRotationRateData](coremotion/cmrecordedrotationratedata.md)

## Relationships

### Inherits From

- [CMLogItem](coremotion/cmlogitem.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSCoding](foundation/nscoding.md)
- [NSCopying](foundation/nscopying.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [NSSecureCoding](foundation/nssecurecoding.md)

## See Also

### Gyroscopes

- [Getting raw gyroscope events](coremotion/getting-raw-gyroscope-events.md)