# parent(named:on:positionWeight:orientationWeight:) Creates a constraint with both a positional and an orientational demands. ``` static func parent(named name: String, on jointName: String, positionWeight: SIMD3 = [1, 1, 1], orientationWeight: SIMD3 = [1, 1, 1]) -> IKRig.Constraint ``` ## Parameters `name` The rig unique name of the constraint `jointName` The name of the joint to constrain. `positionWeight` The weight of the position demand. `orientationWeight` The weight of the orientation demand. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)