Question

我想在已攻丝节点的场景视图中获得矩形位置，以便可以使用该位置将另一个UIView从该位置动画化为更大的尺寸（就像在Measure应用程序中一样）：

尽管我如何获取rect或尺寸或任何东西以使从节点到视图的平滑过渡，但我仍获得了这段代码来窃听节点？

public override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    super.touchesBegan(touches, with: event)
    guard let touch = touches.first else { return }        
    if (touch.view == self.sceneView) {
        let viewTouchLocation:CGPoint = touch.location(in: sceneView)
        guard let result = sceneView.hitTest(viewTouchLocation, options: nil).first else {
            return
        }
    }
}

我已经考虑在给定触摸位置的情况下在场景视图上使用hitTest或smartHitTest，但我似乎无法真正获得较小视图的大小/位置。 / p>

Answer 1

并非完全是您的答案，而是尝试一下：（已编辑以将其发送回去）

var front = false
var boxView = UIView()

@objc func tap(_ sender: UITapGestureRecognizer){
    if !front{
        let position = sender.location(in: sceneView)
        let hitTest = sceneView.hitTest(position, options: nil)
        if let hitNode = hitTest.first?.node{

            self.boxView = UIView(frame: CGRect(x: position.x, y: position.y, width: 100, height: 40))
            self.boxView.backgroundColor = .red
            sceneView.addSubview(self.boxView)
            UIView.animate(withDuration: 0.2) {
                self.boxView.frame = CGRect(x: self.sceneView.frame.width/2 - 150, y: self.sceneView.frame.height/2 - 100, width: 300, height: 200)
            }
            front = true
        }
    }else{
        let p = plane.convertPosition(plane.position, to: sceneView.scene.rootNode)
        print(p, plane.position) // see difference between p and plane.position

        let projectedPoint = sceneView.projectPoint(p)
        let point = CGPoint(x: CGFloat(projectedPoint.x), y: CGFloat(projectedPoint.y))

        UIView.animate(withDuration: 0.2, animations: {
            self.boxView.frame = CGRect(x: point.x, y: point.y, width: 100, height: 40)
        }) { (completed) in
            self.boxView.removeFromSuperview()
        }
        front = false
    }
}

plane这是我的测试案例中的节点。您可能想看看convertPosition和projectPoint

如何从ARKit中的节点动画到实际视图

1 个答案: