---
title: parentFromJointTransform
framework: arkit
role: symbol
role_heading: Instance Property
path: arkit/handskeleton/joint/parentfromjointtransform
---

# parentFromJointTransform

The transform from the joint to its parent joint’s coordinate system.

## Declaration

```swift
var parentFromJointTransform: simd_float4x4 { get }
```

## Discussion

Discussion The root joint’s parentFromJointTransform is an identity matrix.

## See Also

### Tracking the position of hand joints

- [anchorFromJointTransform](arkit/handskeleton/joint/anchorfromjointtransform.md)
- [isTracked](arkit/handskeleton/joint/istracked.md)