NrxDebugVisualizer shows objects.

TODO: Update SceneTreeView after adding new objects

NrxDebugVisualizer/Views/MainWindow.axaml.cs

@@ -1,4 +1,10 @@
 using Avalonia.Controls;
+using Avalonia.Interactivity;
+using NrxDebugVisualizer.ViewModels;
+using Num.Roto.Visualization.Types;
+using System.Data;
+using System.Globalization;
+using System.Threading;
 
 namespace NrxDebugVisualizer.Views;
 
@@ -6,6 +12,29 @@ public partial class MainWindow : Window
 {
     public MainWindow()
     {
+        Thread.CurrentThread.CurrentCulture = CultureInfo.InvariantCulture;
         InitializeComponent();
+
+        Closing += OnClosing;
+
+    }
+    protected override void OnLoaded(RoutedEventArgs e)
+    {
+        base.OnLoaded(e);
+        if (DataContext is not MainWindowViewModel viewModel) throw new DataException("wrong viewModel type!");
+        if (App.Settings?.CameraFrame is not { } cameraFrame) return;
+        var scene = viewModel.ProportionalDockControlViewModel.Scene;
+        var camera = scene?.SelectedCamera;
+        camera?.Frame = cameraFrame;
+        viewModel.ViewPosition = CameraView.Position.User;
+    }
+    private async void OnClosing(object? sender, System.ComponentModel.CancelEventArgs e)
+    {
+        if (DataContext is not MainWindowViewModel viewModel) throw new DataException("wrong viewModel type!");
+        var scene = viewModel.ProportionalDockControlViewModel.Scene;
+        var camera = scene?.SelectedCamera;
+        App.Settings?.MainWindow = this;
+        App.Settings?.CameraFrame = camera?.Frame;
+        App.Settings?.Save();
     }
 }