是否可以在 ARKit 中隐藏特征点？

Question

我想在我的应用中引入一个开关，让用户启用或禁用功能点。

我说的函数是：

self.sceneView.debugOptions = [ARSCNDebugOptions.showFeaturePoints]

是否可以禁用它或仅以一种方式禁用它？

谢谢！

Answer 1

如果特征点是您打开的唯一调试选项，您可以通过将调试选项设置为空集来轻松关闭它（连同所有其他调试选项）：

self.sceneView.debugOptions = []

如果您设置了其他调试选项并且想要删除仅特征点之一，您需要采用当前 debugOptions 值并应用一些SetAlgebra 方法来删除您不想要的选项。（然后将 debugOptions 设置为您修改后的集合。）

Answer 2

The answer is YES,

you can enable / disable Feature Points even if other debugOptions are ON. You can accomplish this by using insert(_:) and remove(_:) instance methods.

这是一个代码（Xcode 10.2.1，Swift 5.0.1，ARKit 2.0）：

let configuration = ARWorldTrackingConfiguration()
@IBOutlet weak var `switch`: UISwitch!
var debugOptions = SCNDebugOptions()


override func viewDidLoad() {
    super.viewDidLoad()
    sceneView.delegate = self
    let scene = SCNScene(named: "art.scnassets/model.scn")!
    
    debugOptions = [.showWorldOrigin]
    sceneView.debugOptions = debugOptions
    sceneView.scene = scene
}

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    sceneView.session.run(configuration)
}

@IBAction func featurePointsOnOff(_ sender: Any) {

    if `switch`.isOn == true {
        debugOptions.insert(.showFeaturePoints)
        sceneView.debugOptions = debugOptions
        print("'showFeaturePoints' option is \(debugOptions.contains(.showFeaturePoints))")

    } else if `switch`.isOn == false {
        debugOptions.remove(.showFeaturePoints)
        sceneView.debugOptions = debugOptions
        print("'showFeaturePoints' option is \(debugOptions.contains(.showFeaturePoints))")
    }
}

希望对您有所帮助。

是否可以在 ARKit 中隐藏特征点？

Is it possible to hide Feature Points in ARKit?

augmented-reality

ios

swift

arkit