swift - 将实体转换为 SCNode ARSCNView

Question

我想让我的节点的（中心和最大值）保持在 SCNode 的顶部（就像在 Quicklook 中一样）

但我需要将此函数从实体转换为 SCNode：

  func getPoint(for scaleEntity: Entity) -> CGPoint  {
        let framePosition = arView.project((scaleEntity.parent?.visualBounds(relativeTo: nil).center)!)
        let visualBoundExtend = arView.project((scaleEntity.parent?.visualBounds(relativeTo: nil).max)!)
        guard var posY = visualBoundExtend?.y, var posX = framePosition?.x else { return  CGPoint(x: 0, y: 0)}
        posX = posX < 0 ? 0 : posX * 1
        posY = posY < 0 ? 0 : posY * 1
        
        if posX > viewMaxBounds.x {
            posX = viewMaxBounds.x - 30
        }
        if posY > viewMaxBounds.y {
            posY = viewMaxBounds.y - 30
        }
        return CGPoint(x: posX, y: posY)
    }