absolute property
Returns true if absolute values for the alpha, beta, and gamma device orientation properties are provided, and false otherwise.
This property is read-only.
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Syntax
| JavaScript |
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ptr = object.absolute |
Property values
Type: boolean
Standards information
Remarks
Absolute values are those which specify the orientation of the host device in relation to a coordinate frame fixed on the Earth. Specifically, this Earth coordinate frame has the following three axes:
- East (X) is in the ground plane, perpendicular to the North axis and positive towards the East
- North (Y) is in the ground plane and positive towards True North (towards the North Pole).
- Up (Z) is perpendicular to the ground plane and positive upwards.
These X, Y, and Z axes correspond to the beta, gamma, and alpha properties of the DeviceOrientationEvent, respectively.
See also
Show: