我得到了这些功能，缩放和移动屏幕上显示的3D对象时，点击它。问题在于，如果我移动或缩放节点（3D对象），它只会使节点的一部分更大或更小，我想缩放一切。
我知道一个解决方案是将Blender中的3D对象作为一个对象加入，但稍后，我想将特定的动画添加到特定的节点，这就是为什么我不想加入它们。
下面是我用于缩放和移动对象的代码：

@objc func panned(recognizer :UIPanGestureRecognizer)
{
    //This function is for scaling
    if recognizer.state == .changed
    {
        guard let sceneView = recognizer.view as? ARSCNView
    else
    {
        return
    }

    let touch = recognizer.location(in: sceneView)
    let translation = recognizer.translation(in: sceneView)

    let hitTestResults = self.sceneView.hitTest(touch, options: nil)

        if let hitTest = hitTestResults.first
        {
            let planeNode = hitTest.node

            self.newAngleY = Float(translation.x) * (Float) (Double.pi)/180
            self.newAngleY += self.currentAngleY
            planeNode.eulerAngles.y = self.newAngleY
        }
        else if recognizer.state == .ended
        {
            self.currentAngleY = self.newAngleY
        } 
    }

}

字符串
还有这个

@objc func pinched(recognizer :UIPinchGestureRecognizer)
{
    if recognizer.state == .changed
    {
        guard let sceneView = recognizer.view as? ARSCNView
            else
            {
                return
            }
    }

    let touch = recognizer.location(in: sceneView)

    let hitTestResults = self.sceneView.hitTest(touch, options: nil)

    if let hitTest = hitTestResults.first
    {

        let planeNode = hitTest.node

        let pinchScaleX = Float(recognizer.scale) * planeNode.scale.x
        let pinchScaleY = Float(recognizer.scale) * planeNode.scale.y
        let pinchScaleZ = Float(recognizer.scale) * planeNode.scale.z

        planeNode.scale = SCNVector3(pinchScaleX, pinchScaleY, pinchScaleZ)

        recognizer.scale = 1 
    }
}

型
我不知道这是否有帮助，但这里有一个节点的图像：Image of the nodes
提前感谢！