files/en-us/web/api/vrpose/position/index.md
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The position read-only property of the {{domxref("VRPose")}} interface returns the position of the {{domxref("VRDisplay")}} at the current timestamp as a 3D vector.
[!NOTE] This property was part of the old WebVR API. It has been superseded by the WebXR Device API.
The coordinate system is as follows:
Positions are measured in meters from an origin point — this point is either the position the sensor was first read at, or the position of the sensor at the point that {{domxref("VRDisplay.resetPose()")}} was last called.
[!NOTE] By default, all positions are given as a sitting space position. Transforming this point with {{domxref("VRStageParameters.sittingToStandingTransform")}} — when you are working with a room display for example — converts this to a standing space position.
A {{jsxref("Float32Array")}}, or null if the VR sensor is not able to provide position data.
[!NOTE] User agents may provide emulated position values through techniques such as neck modeling; when doing so they should still report {{domxref("VRDisplayCapabilities.hasPosition")}} as false.
See VRDisplay.getFrameData() for example code.
This property was part of the old WebVR API that has been superseded by the WebXR Device API. It is no longer on track to becoming a standard.
Until all browsers have implemented the new WebXR APIs, it is recommended to rely on frameworks, like A-Frame, Babylon.js, or Three.js, or a polyfill, to develop WebXR applications that will work across all browsers. Read Meta's Porting from WebVR to WebXR guide for more information.
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