verticalAccuracy
The validity of the altitude values, and their estimated uncertainty, measured in meters.
Declaration
var verticalAccuracy: CLLocationAccuracy { get }Discussion
A positive verticalAccuracy value represents the estimated uncertainty associated with altitude and ellipsoidalAltitude. This value is available whenever altitude values are available.
If verticalAccuracy is 0 or a negative number, altitude and ellipsoidalAltitude values are invalid. If verticalAccuracy is a postive number, altitude and ellipsoidalAltitude values are valid.
A positive verticalAccuracy value represents an uncertainty that’s approximately 68 percent, or one standard deviation, above and below the altitude values.