private static async void OnSaveGraphImageCommand(PocHyperGraphLayout layout)
 {
     await layout.ConvertGraphToImage();
 }
 private static void OnInvalidateArrangeButtonCommand(PocHyperGraphLayout layout)
 {
     // layout.InvalidateArrange();
     layout.InvalidateVisual();
 }
 private static void OnReLayoutCommand(PocHyperGraphLayout layout)
 {
     layout.Layout();
 }
 private static void OnInvalidateMeasureButtonCommand(PocHyperGraphLayout layout)
 {
     layout.InvalidateMeasure();
 }