// handle unconnected Links that use dummy Nodes as placeholders
private void Move(Node n, Point pos)
{
if (n.Tag is Link)
{
Link l = (Link)n.Tag;
Rect lb = Geo.Bounds(l.Route.Points);
l.Route.MovePoints(new Point(pos.X - lb.X, pos.Y - lb.Y));
l.Remeasure();
}
else
{
n.Move(pos, true);
}
}