private List <ViewModelNode> FullMoveAllSelectedNode(MyPoint delta, List <ViewModelNode> nodes = null)
{
MyPoint myPoint = delta.Copy();
if (nodes == null)
{
nodes = Nodes.Where(x => x.Selected).ToList();
myPoint.Clear();
}
nodes.ForEach(node => node.CommandMove.Execute(myPoint));
return(nodes);
}
