Returns a bitmask specifying the available attitude reference frames on the device.
- iOS 5.0+
- Mac Catalyst 13.0+
- watchOS 2.0+
For example, to determine whether
CMAttitudeReferenceFrameXMagneticNorthZVertical is available on the device, you would perform the following test:
Accessing Attitude Reference Frames
Returns either the reference frame currently being used or the default attitude reference frame.
Enum constants for indicating the reference frames from which all attitude samples are referenced.