RelativeOrientationSensor

RelativeOrientationSensor interface of the the Sensor APIs describes the device's physical orientation without regard to the Earth's reference coordinate system.

To use this sensor, the user must grant permission to the 'accelerometer' ,和 'gyroscope' device sensors through the Permissions API.

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.

构造函数

RelativeOrientationSensor.RelativeOrientationSensor()
创建新的 RelativeOrientationSensor 对象。

特性

No specific properties; inherits methods from its ancestors OrientationSensor and Sensor .

事件处理程序

No specific event handlers; inherits methods from its ancestor, Sensor .

方法

No specific methods; inherits methods from its ancestors OrientationSensor and Sensor .

范例

基本范例

The following example, which is loosely based on Intel's Orientation Phone demo ,  instantiates an RelativeOrientationSensor with a frequency of 60 times a second.

Note that the Intel demo this is based on uses the AbsoluteOreintationSensor . On each reading it uses OrientationSensor.quaternion to rotate a visual model of a phone.

const options = { frequency: 60, referenceFrame: 'device' };
const sensor = new RelativeOrientationSensor(options);
sensor.addEventListener('reading', () => {
  // model is a Three.js object instantiated elsewhere.
  model.quaternion.fromArray(sensor.quaternion).inverse();
});
sensor.addEventListener('error', error => {
  if (event.error.name == 'NotReadableError') {
    console.log("Sensor is not available.");
  }
});
sensor.start();
					

Permissions Example

Using orientation sensors requires requsting permissions for multiple device sensors. Becuase the Permissions uses promises, a good way to request permissions is to use Promise.all .

const sensor = new RelativeOrientationSensor();
Promise.all([navigator.permissions.query({ name: "accelerometer" }),
             navigator.permissions.query({ name: "gyroscope" })])
       .then(results => {
         if (results.every(result => result.state === "granted")) {
           sensor.start();
           ...
         } else {
           console.log("No permissions to use RelativeOrientationSensor.");
         }
   });
					

规范

规范 状态 Comment
Orientation Sensor
The definition of 'RelativeOrientationSensor' in that specification.
候选推荐 初始定义。

浏览器兼容性

更新 GitHub 上的兼容性数据
Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
RelativeOrientationSensor 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
RelativeOrientationSensor() 构造函数 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
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