@Override
	protected void refreshVisuals() {
		super.refreshVisuals();
		if (getSource() instanceof ShapeEditPart ) {
			IFigure figure = ((ShapeEditPart)getSource()).getFigure(); 
			if (figure instanceof RectangleFigure) {
				((PolylineConnection) getFigure()).setConnectionRouter(new ManhattanConnectionRouter());
			}
		}
	}