ARKit 2.0使用World Map具有AR数据持久性 . 我希望在以下版本中实现相同的目标 . 这是我的方法:在检测垂直平面并添加到本地数组后放置SCNNode .
使用 FireBase Realtime DB
存储具有唯一锚ID的ARAnchor . 接下来我像ARKit 2.0一样按预期工作 . 节点不会放在最后的确切位置 . 以下是我的代码:
guard let node = self.selectedNode else { return }
guard let data = try? NSKeyedArchiver.archivedData(withRootObject: node.anchor!, requiringSecureCoding: false) else { print("Could not archeive" )
return
}
let string = data.base64EncodedString()
self.saveData(dataString: string, forKey: node.name!)
func saveData(dataString : String, forKey : String) {
db.collection("roomdecorateDB").document(forKey).setData([
"anchor": dataString]) { err in
if let err = err {
print("Error writing document: \(err)")
} else {
print("Document successfully written!")
}
}
}
func reloadData() {
guard let cloudAnchor = try? NSKeyedUnarchiver.unarchivedObject(ofClass: ARAnchor.self, from: data) else { return print("Could not decode") }
print("world map \(cloudAnchor!)")
// Run the session with the received world map.
let configuration = self.standardConfiguration
self.sceneView.session.run(configuration, options: [.resetTracking, .removeExistingAnchors])
self.sceneView.session.add(anchor: cloudAnchor!)
// document id is the name of node, we can find node from node array and place to scene view
guard let node = self.nodeArray.first(where: {$0.name == document.documentID})else {continue}
node.position = SCNVector3((cloudAnchor?.transform.columns.3.x)!, (cloudAnchor?.transform.columns.3.y)!, (cloudAnchor?.transform.columns.3.z)!)
self.sceneView.scene.rootNode.addChildNode(node)
}
任何帮助都会真正得到应用 .
1 回答
对于ARKit 1.0中的开发人员和使用Apple工具的ARKit 1.5,'s not a good idea. There'无法访问
World Map Data
.Persistence
以及Multiuser AR Experience
选项仅在 ARKit 2.0 中可用于 iOS 12 .将ARWorldMap保存到iOS12中的文件URL非常简单:
从文件URL加载ARWorldMap就像这样简单: