ios - 在 ARKit 中检测平面

Question

当应用在 ARKit 中检测到至少一架飞机时，我如何收到通知？

我目前正在做这样的事情，但它没有触发/它不相关:

extension MyViewController: ARSCNViewDelegate, ARSessionDelegate {
    internal func setupAR() {
        let scene = SCNScene()
        sceneView.scene = scene
        let configuration = ARWorldTrackingConfiguration()
        configuration.planeDetection = [.horizontal]
        sceneView.session.delegate = self
        sceneView.session.run(configuration)
    }

    public func session(_ session: ARSession, didUpdate anchors: [ARAnchor]) {
        if !anchors.isEmpty {
            print("ANCHORS NOT EMPTY")
            planesDetectedState()
        } else {
            print("Anchors is empty")
        }
    }
}

Answer 1

请先添加 anchor 以更新。您需要使用以下功能:

func session(_ session: ARSession, didAdd anchors: [ARAnchor]) {
        guard let frame = session.currentFrame else { return }
        print("Just added an anchor and felt so good")
}

此外，您将无法看到任何平面，除非您向 anchor 添加一个节点，您可以通过以下方式做到这一点:

func renderer(_ renderer: SCNSceneRenderer, didAdd node: SCNNode, for anchor: ARAnchor) {
        // Add a planeNode and make it a child to the node automatically added.
}

我还建议，下载入门代码，它很容易理解您正在考虑的事情。

https://developer.apple.com/documentation/arkit/building_your_first_ar_experience