OrientationSensor

OrientationSensor interface of the the Sensor APIs is the base class for orientation sensors. This interface cannot be used directly. Instead it provides properties and methods accessed by interfaces that inherit from it.

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.

Interfaces based on OrientationSensor

Below is a list of interfaces based on the OrientationSensor interface.

特性

OrientationSensor.quaternion
Returns a four element Array whose elements contain the components of the unit quaternion representing the device's orientation.

方法

OrientationSensor.populateMatrix()
Populates the given object with the rotation matrix based on the latest sensor reading. The rotation maxtrix is shown below.

范例

基本范例

The following example, which is loosely based on Intel's Orientation Phone demo ,  instantiates an AbsoluteOrientationSensor with a frequency of 60 times a second. On each reading it uses OrientationSensor.quaternion to rotate a visual model of a phone.

const options = { frequency: 60, referenceFrame: 'device' };
const sensor = new AbsoluteOrientationSensor(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 AbsoluteOrientationSensor();
Promise.all([navigator.permissions.query({ name: "accelerometer" }),
             navigator.permissions.query({ name: "magnetometer" }),
             navigator.permissions.query({ name: "gyroscope" })])
       .then(results => {
         if (results.every(result => result.state === "granted")) {
           sensor.start();
           ...
         } else {
           console.log("No permissions to use AbsoluteOrientationSensor.");
         }
   });
					

规范

规范 状态 Comment
Orientation Sensor
The definition of 'OrientationSensor' 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
OrientationSensor 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
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
quaternion 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