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• 句法
• 范例
• 规范
• 浏览器兼容性
• 相关话题

populateMatrix 方法在 OrientationSensor interface populates the given target matrix with the rotation matrix based on the latest sensor reading. The rotation matrix is shown below.

其中：

• W = cos(θ/2)
• X = Vx * sin(θ/2)
• Y = Vy * sin(θ/2)
• Z = Vz * sin(θ/2)

If a feature policy blocks use of a feature it is because your code is inconsistent with the policies set on your server. This is not something that would ever be shown to a user. See Feature-Policy for implementation instructions.

句法

orientationInstance.populateMatrix(targetMatrix)
					

因为 OrientationSensor is a base class, populateMatrix may only be read from one of its derived classes.

参数

targetMatrix

TBD

返回值

undefined

范例

// TBD
					

规范

规范	状态	注释
Orientation Sensor The definition of 'populateMatrix' in that specification.	候选推荐	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
populateMatrix	Chrome 69	Edge ≤79	Firefox ?	IE ?	Opera 56	Safari ?	WebView Android 69	Chrome Android 69	Firefox Android ?	Opera Android 48	Safari iOS ?	Samsung Internet Android 10.0

图例

完整支持

完整支持

兼容性未知 ?

兼容性未知

元数据

• 最后修改： Mar 18, 2019

相关话题

1. OrientationSensor
2. 特性

   1. quaternion
3. 方法

   1. populateMatrix()
4. 继承：

   1. 传感器
   2. EventTarget