在此页

• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

这是 实验性技术
检查 浏览器兼容性表格 要小心谨慎在生产中使用这之前。

linearAcceleration 只读特性在 VRPose interface returns an array representing the linear acceleration vector of the VRDisplay 在当前 VRPose.timestamp , in meters per second per second.

In other words, the current acceleration of the sensor, along the x , y ，和 z axes.

句法

var myLinearAcceleration = VRPose.linearAcceleration;
					

值

A Float32Array ，或 null if the VR sensor is not able to provide linear acceleration data.

范例

// rendering loop for a VR scene
function drawVRScene() {
  // WebVR: Request the next frame of the animation
  vrSceneFrame = vrDisplay.requestAnimationFrame(drawVRScene);
  // Populate frameData with the data of the next frame to display
  vrDisplay.getFrameData(frameData);
  // Retrieve the linear acceleration values for use in rendering
  // curFramePose is a VRPose object
  var curFramePose = frameData.pose;
  var linAcc = curFramePose.linearAcceleration;
  var lax = linAcc[0];
  var lay = linAcc[1];
  var laz = linAcc[2];
  // render the scene
  ...
  // WebVR: submit the rendered frame to the VR display
  vrDisplay.submitFrame();
}
					

规范

规范	状态	注释
WebVR 1.1 The definition of 'linearAcceleration' in that specification.	草案	初始定义

浏览器兼容性

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
linearAcceleration 弃用	Chrome No	Edge 15 — 79	Firefox 55 55 Windows support was enabled in Firefox 55. 64 macOS support was enabled in Firefox 64.	IE No	Opera ?	Safari No	WebView Android No	Chrome Android 56 — 80 Disabled 不支持 56 — 80 Disabled Only works in an experimental version of Chrome . (Other builds won't return any devices when Navigator.getVRDisplays() is invoked.) Daydream View supported in Chrome 56. Google Cardboard supported in Chrome 57. Disabled From version 56 until version 80 (exclusive): this feature is behind the WebVR preference. To change preferences in Chrome, visit chrome://flags.	Firefox Android 55	Opera Android ?	Safari iOS ?	Samsung Internet Android 6.0 6.0 Google Cardboard supported in Samsung Internet 7.0.

图例

完整支持

完整支持

不支持

不支持

兼容性未知 ?

兼容性未知

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

弃用。不要用于新网站。

弃用。不要用于新网站。

见实现注意事项。

用户必须明确启用此特征。

用户必须明确启用此特征。

另请参阅

• WebVR API homepage .
• MozVr.com — demos, downloads, and other resources from the Mozilla VR team.

元数据

• 最后修改： 2019 年 3 月 23 日

相关话题

1. WebVR API
2. VRPose
3. 特性

   1. angularAcceleration
   2. angularVelocity
   3. hasOrientation
   4. hasPosition
   5. linearAcceleration
   6. linearVelocity
   7. orientation
   8. 位置
   9. timestamp
4. Related pages for WebVR API

   1. Gamepad.displayId
   2. Navigator.activeVRDisplays
   3. Navigator.getVRDisplays()
   4. VRDisplay
   5. VRDisplayCapabilities
   6. VRDisplayEvent
   7. VREyeParameters
   8. VRFieldOfView
   9. VRFrameData
   10. VRLayerInit
   11. VRStageParameters