@@ -, +, @@ 
 * Copyright (c) 2000, 2005 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
 * Provides a {@link Connection} with an orthogonal route between the Connection's source
 * and target anchors.
 */
 * @see ConnectionRouter#invalidate(Connection)
 */
 * Returns the direction the point <i>p</i> is in relation to the given rectangle.
 * Possible values are LEFT (-1,0), RIGHT (1,0), UP (0,-1) and DOWN (0,1).
 *
 * @param r the rectangle
 * @param p the point
 * @return the direction from <i>r</i> to <i>p</i>
 */
 * @see ConnectionRouter#remove(Connection)
 */
 * @see ConnectionRouter#route(Connection)
 */