XRHand
The XRHand interface is pair iterator (an ordered map) with the key being the hand joints and the value being an XRJointSpace.
XRHand is returned by XRInputSource.hand.
Properties
-
sizeRead only -
Returns
25, the size of the pair iterator.
Methods
The XRhand object is a pair iterator. It can directly be used in a for...of structure. for (let joint of myHand) is equivalent to for (let joint of myHand.entries()). However, it's not a map-like object, so you don't have the clear(), delete(), has(), and set() methods.
entries()-
Returns an iterator with the hand joints/
XRJointSpacepairs for each element. SeeMap.prototype.entries()for more details. forEach()-
Runs a provided function once per each hand joint/
XRJointSpacepair. SeeMap.prototype.forEach()for more details. get()-
Returns a
XRJointSpacefor a given hand joint orundefinedif no such hand joint key is in the map. SeeMap.prototype.get()for more details. keys()-
Returns an iterator with all the hand joint keys. See
Map.prototype.keys()for more details. values()-
Returns an iterator with all the
XRJointSpacevalues. SeeMap.prototype.values()for more details.
Hand joints
The XRHand object contains the following hand joints:
| Hand joint | Index |
|---|---|
| wrist | 0 |
| thumb-metacarpal | 1 |
| thumb-phalanx-proximal | 2 |
| thumb-phalanx-distal | 3 |
| thumb-tip | 4 |
| index-finger-metacarpal | 5 |
| index-finger-phalanx-proximal | 6 |
| index-finger-phalanx-intermediate | 7 |
| index-finger-phalanx-distal | 8 |
| index-finger-tip | 9 |
| middle-finger-metacarpal | 10 |
| middle-finger-phalanx-proximal | 11 |
| middle-finger-phalanx-intermediate | 12 |
| middle-finger-phalanx-distal | 13 |
| middle-finger-tip | 14 |
| ring-finger-metacarpal | 15 |
| ring-finger-phalanx-proximal | 16 |
| ring-finger-phalanx-intermediate | 17 |
| ring-finger-phalanx-distal | 18 |
| ring-finger-tip | 19 |
| pinky-finger-metacarpal | 20 |
| pinky-finger-phalanx-proximal | 21 |
| pinky-finger-phalanx-intermediate | 22 |
| pinky-finger-phalanx-distal | 23 |
| pinky-finger-tip | 24 |
Examples
Using XRHand objects
let wristJoint = inputSource.hand.get("wrist"); let indexFingerTipJoint = inputSource.hand.get("index-finger-tip"); for (let [joint, jointSpace] of inputSource.hand) { console.log(joint); console.log(jointSpace); }
Specifications
No specification data found for api.XRHand.
Check for problems with this page or contribute a missing spec_url to mdn/browser-compat-data. Also make sure the specification is included in w3c/browser-specs.
Browser compatibility
No compatibility data found for api.XRHand.
Check for problems with this page or contribute missing data to mdn/browser-compat-data.
See also
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/XRHand