void hull_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
Debug.WriteLine("DesignControl.PropertyChanged: " + e.PropertyName);
if (e.PropertyName == "HullData" || e.PropertyName == "Bulkhead" || e.PropertyName == "HullScale" || e.PropertyName == "Bulkhead.Handle")
{
if (e.PropertyName != "Bulkhead.Handle")
{
undoLog.StartSnapshot();
}
undoLog.Add(BaseHull.Instance());
redoLog.Clear();
UpdateViews();
}
}