web api instance property
XRRigidTransform: orientation property
Secure context
The read-only XRRigidTransform property
orientation is a DOMPointReadOnly
containing a normalized quaternion (also called a unit
quaternion or versor)
specifying the rotational component of the transform represented by the object.
If you specify a quaternion whose length is not exactly 1.0 meters, it will be
normalized for you.
Value
A DOMPointReadOnly object which contains a unit quaternion providing the
orientation component of the transform. As a unit quaternion, the length of the returned
quaternion is always 1.0 meters.
Examples
To create a reference space which is oriented to look straight up, positioned 2 meters off of ground level:
xrReferenceSpace = refSpace.getOffsetReferenceSpace(
new XRRigidTransform({ y: -2 }, { x: 0.0, y: 1.0, z: 0.0, w: 1.0 }),
);
The unit quaternion specified here is [0.0, 1.0, 0.0, 1.0] to indicate that the object should be facing directly along the y axis.