XRInputSourceEventInit.frame

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XRInputSourceEventInit dictionary's property frame specifies an XRFrame providing information about the timestamp at which the new input source event took place, as well as access to the XRFrame 方法 getPose() which can be used to map the coordinates of any XRReferenceSpace to the space in which the event took place.

Of course, as a general rule, you won't need to create XRInputSourceEventInit objects yourself. These events are generated by and sent to you by the WebXR infrastructure.

句法

xrInputSourceEventInit.frame = xrFrame;
let xrInputSourceEventInit = { frame: xrFrame };
let xrInputSourceEvent = new XRInputSourceEvent(type, { frame: xrFrame });

值

XRFrame indicating the time at which the event took place, and providing a getPose() method which can be used to map reference spaces to the world reference space.

用法注意事项

The event frame does not correspond to a visual frame as is delivered to the frame rendering callback function (see Rendering and the WebXR frame rendering callback for details on the callback). Instead, the XRFrame 指定通过 frame property is simply a method to provide access to the getPose() method, which you can use to get the relative positions of the objects in the scene at the time the event occurred.

范例

This example creates a new select event and sends it to the XRSession .

let event = new XRInputSourceEvent("select", {
  frame: eventFrame,
  inputSource: source
};
if (event) {
  xrSession.dispatchEvent(event);
}

规范

规范	状态	注释
WebXR 设备 API The definition of 'XRInputSourceEventInit.frame' in that specification.	工作草案	初始定义。

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No compatibility data found. Please contribute data for "api.XRInputSourceEventInit.frame" (depth: 1) to the MDN 兼容性数据存储库 .

元数据

最后修改： Mar 5, 2020

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句法

值

用法注意事项

范例

规范

浏览器兼容性

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