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compassHeading
A CompassHeading object is returned to the [compassSuccess](compassSuccess.html) callback function when an error occurs.
Properties
- magneticHeading: The heading in degrees from 0 - 359.99 at a single moment in time. (Number)
- trueHeading: The heading relative to the geographic North Pole in degrees 0 - 359.99 at a single moment in time. A negative value indicates that the true heading could not be determined. (Number)
- headingAccuracy: The deviation in degrees between the reported heading and the true heading. (Number)
- timestamp: The time at which this heading was determined. (milliseconds)
Description
The CompassHeading object is returned to the user through the [compassSuccess](compassSuccess.html) callback function.
Android Quirks
- trueHeading is not supported. It will report the same value as magneticHeading
- headingAccuracy will always be 0 as there is no difference between the magneticHeading and trueHeading on Android.
iOS Quirks
- trueHeading is only returned when location services are running via
navigator.geolocation.watchLocation() - For iOS > 4 devices, if the device is rotated and the app supports that orientation, the heading values will be reported back with respect to the current orientation.