OsmarenderTileDownload.java :  » App » mapsforge » org » mapsforge » android » maps » Android Open Source

/*
 * Copyright 2010, 2011 mapsforge.org
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.mapsforge.android.maps;

/**
 * A MapGenerator that downloads tiles from the TilesAtHome server at OpenStreetMap.
 */
class OsmarenderTileDownload extends TileDownloadMapGenerator {
  private static final String SERVER_HOST_NAME = "tah.openstreetmap.org";
  private static final String THREAD_NAME = "OsmarenderTileDownload";
  private static final String URL_FIRST_PART = "http://" + SERVER_HOST_NAME + "/Tiles/tile/";
  private static final byte ZOOM_MAX = 17;

  @Override
  byte getMaxZoomLevel() {
    return ZOOM_MAX;
  }

  @Override
  String getServerHostName() {
    return SERVER_HOST_NAME;
  }

  @Override
  String getThreadName() {
    return THREAD_NAME;
  }

  @Override
  void getTilePath(Tile tile, StringBuilder imagePath) {
    imagePath.append(URL_FIRST_PART);
    imagePath.append(tile.zoomLevel);
    imagePath.append("/");
    imagePath.append(tile.x);
    imagePath.append("/");
    imagePath.append(tile.y);
    imagePath.append(".png");
  }
}