5

在我的 iOS 应用程序中，我想使用新的 Reality Composer 介绍 AR 的一部分。

在我的项目中，我使用以下代码加载场景：

let arView = ARView.init(frame: frame)

// Configure the AR session for horizontal plane tracking.

let arConfiguration = ARWorldTrackingConfiguration()
arConfiguration.planeDetection = .horizontal
arView.session.run(arConfiguration)
arView.session.delegate = self

self.view.addSubview(arView)

Experience.loadSceneAsync{ [weak self] scene, error in

print("Error \(String(describing: error))")

guard let scene = scene else { return }

arView.scene.addAnchor(scene)

// THIS IS THE entity that i want to edit programmatically
scene.Label

“ scene.label”是我场景中的一个文本对象，我想以编程方式设置文本。

我怎样才能做到这一点？这是可能的？

提前致谢

4

1 回答 1

6

In RealityKit framework, use the following type method for generating 3D text:

static func generateText(_ string: String, 
                   extrusionDepth: Float, 
                             font: MeshResource.Font, 
                   containerFrame: CGRect, 
                        alignment: CTTextAlignment, 
                    lineBreakMode: CTLineBreakMode) -> MeshResource

Let's see how a real code looks like:

let textAnchor = try! SomeText.loadTextScene()

let textEntity: Entity = textAnchor.vacation!.children[0].children[0]

var textModelComponent: ModelComponent = (textEntity.components[ModelComponent])!

textModelComponent.mesh = .generateText("Hello, World!",
                         extrusionDepth: 0.5,
                                   font: .systemFont(ofSize: 0.25),
                         containerFrame: CGRect.zero,
                              alignment: .center,
                          lineBreakMode: .byCharWrapping)

textAnchor.vacation!.children[0].children[0].components.set(textModelComponent)
arView.scene.anchors.append(textAnchor)
于 2019-06-18T11:45:48.507 回答