XRPose.transform

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句法
范例
规范
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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 .

transform read-only attribute of the XRPose 接口是 XRRigidTransform object providing the position and orientation of the pose relative to the base XRSpace as specified when the pose was obtained by calling XRFrame.getPose() .

句法

let poseTransform = xrPose.transform;

值

XRRigidTransform which provides the position and orientation of the XRPose relative to the XRFrame to which this XRPose is aligned. This is the same pose that's returned by the frame's getPose() 方法。

范例

This handler for the XRSession event select handles events for tracked pointers. It determines the targeted object by passing the event frame's pose into a function called findTargetUsingRay() , then dispatches the event differently depending on the user's handedness; this is done by comparing the value of the XRInputSource property handedness to a value in the variable user.handedness . If the source is a controller in the user's primary hand, a function is called on the targeted object called primaryAction() ; otherwise, it calls the targeted object's offHandAction() 函数。

xrSession.addEventListener("select", event => {
  let source = event.inputSource;
  let frame = event.frame;
  let targetRayPose = frame.getPose(source.targetRaySpace, myRefSpace);
  let targetObject = findTargetUsingRay(targetRay.transform.matrix);
  if (source.targetRayMode == "tracked-pointer") {
    if (source.handedness == user.handedness) {
      targetObject.primaryAction();
    } else {
      targetObject.offHandAction();
    }
  }
});

规范

规范	状态	注释
WebXR 设备 API The definition of 'XRPose.transform' in that specification.	工作草案	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
`transform`	Chrome 79	Edge 79	Firefox 不支持 No	IE 不支持 No	Opera 不支持 No	Safari 不支持 No	WebView Android 不支持 No	Chrome Android 79	Firefox Android 不支持 No	Opera Android 不支持 No	Safari iOS 不支持 No	Samsung Internet Android 11.2

图例

完整支持
不支持

元数据

最后修改： Mar 4, 2020

WebXR 设备 API
XRPose
特性
1. emulatedPosition
2. transform
Related pages for WebXR Device API

在此页

句法

值

范例

规范

浏览器兼容性

图例

相关话题