Swift SceneKit -如何对齐节点的y轴以与某些SCNVector3重合？

// 获取目标节点
let targetNode = scene.rootNode.childNode(withName: "TargetNode", recursively: true)

// 获取目标节点的位置
let targetPosition = targetNode?.position

// 创建目标位置的SCNVector3
let desiredPosition = SCNVector3Make(0, 0, 0)

// 计算目标位置与目标节点位置之间的差异
let positionDifference = SCNVector3(desiredPosition.x - targetPosition.x, desiredPosition.y - targetPosition.y, desiredPosition.z - targetPosition.z)

// 将差异应用于目标节点的位置
targetNode?.position = SCNVector3(targetPosition.x + positionDifference.x, targetPosition.y + positionDifference.y, targetPosition.z + positionDifference.z)