点击 arkit 中 SCNNode 上的位置 ios swift

Question

我将 node1 放置到 sceneview.I 当点击 node1.But 时还将 node2 作为子节点添加到 node1 我无法将 node2 正确放置在 node1.How 的点击位置我可以放置它吗恰好在arkit中scn节点的tap位置。

已更新

最终代码

let sceneView = sender.view as! ARSCNView
let tapLocation = sender.location(in: sceneView)
let hitTest = sceneView.hitTest(tapLocation, options: [:])
guard let node = hitTest.first?.node.parent
if let hitTest = hitTest.first
{
    guard let scene = SCNScene(named: "furnitures.scnassets/(furnitureName).scn") else{return}
    let childnode = (scene.rootNode.childNode(withName: furnitureName + " " + "parentnode", recursively: false))!
     node.addChildNode(childnode)
     childnode.position = hitTest.localCoordinates
     childnode.scale = SCNVector3(0.5,0.5,0.5)
 }

Answer 1

你需要使用SCNHitTestResultlocalCoordinates或worldCoordinates这取决于哪个更适合你的问题，然后你可以在那个位置添加一个节点

这是示例代码

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    let scnView = self.view as! SCNView
    let touch = touches.first
    if let point = touch?.location(in: scnView) {
        let hitResults = scnView.hitTest(point, options: nil)
        if let result: SCNHitTestResult = hitResults.first {
            let position  = result.localCoordinates
            let position2  = result.worldCoordinates
        }
    }
}

Answer 2

这是我的 code.I 不知道如何在评论中提及所以我这样发帖

let sceneView = sender.view as! ARSCNView
let tapLocation = sender.location(in: sceneView)
let hitTest = sceneView.hitTest(tapLocation, options: [:])
guard let node = hitTest.first?.node
if let hitTest = hitTest.first
{
    guard let scene = SCNScene(named: "furnitures.scnassets/(furnitureName).scn") else{return}
    let childnode = (scene.rootNode.childNode(withName: furnitureName + " " + "parentnode", recursively: false))!
     node.addChildNode(childnode)
     childnode.position = hitTest.localCoordinates
     childnode.scale = SCNVector3(0.5,0.5,0.5)
 }

Answer 3

screenshot

你可以看到 node2 放在椅子上和 table.I 在 table 上圈起来的大小差异，所以它是可见的...

点击 arkit 中 SCNNode 上的位置 ios swift

Tap location on SCNNode in arkit ios swift

ios

swift

arkit

scnnode

已更新