XRReferenceSpaceEvent.transform

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句法
用法注意事项
范例
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安全上下文
此特征只可用于安全上下文 (HTTPS)，在某些或所有支持浏览器 .

只读 XRReferenceSpaceEvent property transform indicates the position and orientation of the affected referenceSpace 's native origin after the changes the event represents are applied. transform is defined using the old coordinate system, which allows it to be used to convert coordinates from the pre-event coordinate system to the post-event coordiante system.

句法

let refSpace = xrReferenceSpaceEvent.transform;

值

XRRigidTransform object providing a transform that can be used to convert coordinates from the pre-event coordinate system to the post-event coordinate system.

用法注意事项

Upon receiving a reset event, you can apply the transform to cached position or orientation information to shift them into the updated coordinate system. Alternatively, you can just discard any cached positional information and recompute from scratch. The approach you take will depend on your needs.

For details on what causes a reset event and how to respond, see the reset event's documentation.

范例

This example handles the reset event by walking through all the objects in a scene, updating each object's position by multiplying it with the event's given transform . The scene is represented by a scene object, with all the objects in an array called 对象 within it.

xrReferenceSpace.addEventListener("reset", event => {
  for (let obj of scene.objects) {
    mat4.multiply(obj.transform, obj.transform, event.transform);
  }
});

规范

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

浏览器兼容性

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`transform`	Chrome 79	Edge 79	Firefox No	IE No	Opera No	Safari No	WebView Android No	Chrome Android 79	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android 11.2

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完整支持
不支持

元数据

最后修改： Apr 7, 2020

在此页

句法

值

用法注意事项

范例

规范

浏览器兼容性

图例

相关话题