---
title: linearMotionAlongY
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/physicscustomjoint/linearmotionalongy
---

# linearMotionAlongY

The linear motion limits along the y-axis.

## Declaration

```swift
var linearMotionAlongY: PhysicsCustomJoint.MotionLimit
```

## Discussion

Discussion This property sets the limits of pin1 along the y-axis of pin0.