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/*
 * Copyright (C) 2008 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.inject.grapher.graphviz;

/**
 * Enum for the "compass point" values used to control where edge end points appear on the graph.
 *
 * See: http://www.graphviz.org/doc/info/attrs.html#k:portPos
 *
 * @author [email protected] (Pete Hopkins)
 */
public enum CompassPoint {
  NORTH("n"),
  NORTH_EAST("ne"),
  EAST("e"),
  SOUTH_EAST("se"),
  SOUTH("s"),
  SOUTH_WEST("sw"),
  WEST("w"),
  NORTH_WEST("nw"),
  CENTER("c"),
  EXTERIOR_SIDE("_");

  /** Graphviz "compass_pt" value. */
  private final String compassPt;

  CompassPoint(String compassPt) {
    this.compassPt = compassPt;
  }

  @Override
  public String toString() {
    return compassPt;
  }
}