iOS:如何在SceneKit中使节点围绕特定轴旋转

import UIKit
import SceneKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 创建一个SCNView作为场景的容器
        let sceneView = SCNView(frame: view.frame)
        view.addSubview(sceneView)
        
        // 创建一个场景
        let scene = SCNScene()
        sceneView.scene = scene
        
        // 创建一个旋转中心节点
        let rotationCenterNode = SCNNode()
        scene.rootNode.addChildNode(rotationCenterNode)
        
        // 创建一个几何体节点
        let boxGeometry = SCNBox(width: 1, height: 1, length: 1, chamferRadius: 0)
        let boxNode = SCNNode(geometry: boxGeometry)
        boxNode.position = SCNVector3(0, 0, -5) // 设置节点位置
        rotationCenterNode.addChildNode(boxNode)
        
        // 创建一个旋转动画
        let rotationAction = SCNAction.rotateBy(x: 0, y: CGFloat.pi, z: 0, duration: 2)
        let repeatAction = SCNAction.repeatForever(rotationAction)
        boxNode.runAction(repeatAction)
        
        // 设置场景视图的参数
        sceneView.autoenablesDefaultLighting = true
        sceneView.allowsCameraControl = true
    }
}