Representation of a magnetometer event.
NOTE This is an abstract type. Any object meeting this description can be used where this type is used.
The magnetic field measured by the magnetometer.
The magnetic field measured by the magnetometer.
For more information, see iOS Developer Library: CMMagnetometerData.magneticField property.
The time when the logged item is valid.
The time when the logged item is valid.
The time stamp is the amount of time in milliseconds since the phone booted.