只读 XRRigidTransform property orientation 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.

句法

let orientation = xrRigidTransform.orientation;
					

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.

范例

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.

规范

规范 状态 注释
WebXR 设备 API
The definition of 'XRRigidTransform.orientation' in that specification.
工作草案 初始定义。

浏览器兼容性

更新 GitHub 上的兼容性数据
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Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
orientation Chrome 79 Edge 79 Firefox 不支持 No IE 不支持 No Opera 不支持 No Safari 不支持 No WebView Android 不支持 No Chrome Android 79 Firefox Android 不支持 No Opera Android 不支持 No Safari iOS 不支持 No Samsung Internet Android 11.2

图例

完整支持

完整支持

不支持

不支持

另请参阅

元数据

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