content: /*
   * Copyright 2014 Christian Pesch
   * Copyright 2014-2016 devemux86
   *
   * This program is free software: you can redistribute it and/or modify it under the
   * terms of the GNU Lesser General Public License as published by the Free Software
   * Foundation, either version 3 of the License, or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful, but WITHOUT ANY
   * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public License along with
   * this program. If not, see <http://www.gnu.org/licenses/>.
   */
  package org.oscim.scalebar;
  
  public final class NauticalUnitAdapter implements DistanceUnitAdapter {
      public static final NauticalUnitAdapter INSTANCE = new NauticalUnitAdapter();
      private static final int ONE_MILE = 1852;
      private static final int[] SCALE_BAR_VALUES = {9260000, 3704000, 1852000, 926000, 370400, 185200, 92600,
              37040, 18520, 9260, 3704, 1852, 926, 500, 200, 100, 50, 20, 10, 5, 2, 1};
  
      private NauticalUnitAdapter() {
          // do nothing
      }
  
      @Override
      public double getMeterRatio() {
          return 1;
      }
  
      @Override
      public int[] getScaleBarValues() {
          return SCALE_BAR_VALUES;
      }
  
      @Override
      public String getScaleText(int mapScaleValue) {
          if (mapScaleValue < ONE_MILE / 2) {
              return mapScaleValue + " m";
          }
          if (mapScaleValue == ONE_MILE / 2) {
              return "0.5 nmi";
          }
          return (mapScaleValue / ONE_MILE) + " nmi";
      }
  }
  