Class: CMMagnetometerData
Overview
Instances of the CMMagnetometerData class encapsulated measurements of the magnetic field made by the device’s magnetometer.
Instance Attribute Summary (collapse)
-
- magneticField
readonly
Returns the magnetic field measured by the magnetometer.
Attributes inherited from CMLogItem
Method Summary
Methods inherited from NSObject
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Constructor Details
This class inherits a constructor from NSObject
Dynamic Method Handling
This class handles dynamic methods through the method_missing method in the class NSObject
Instance Attribute Details
- (CMMagneticField) magneticField (readonly)
Returns the magnetic field measured by the magnetometer. (read-only) The value of this property is the total magnetic field observed by the device which is equal to the Earth’s geomagnetic field plus bias introduced from the device itself and its surroundings.This is the “raw” magnetic-field value, unlike the calibrated value of the magneticField property of CMDeviceMotion which filters out the bias introduced by the device and, in some cases, its surrounding fields.