Class: CMMagnetometerData

Inherits:
CMLogItem show all

Overview

Instances of the CMMagnetometerData class encapsulated measurements of the magnetic field made by the device’s magnetometer.

Instance Attribute Summary (collapse)

Attributes inherited from CMLogItem

#timestamp

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.

Returns: