+ private static File map_file(AltosLatLon center, int zoom, int maptype, int px_size, int scale) {
+ double lat = center.lat;
+ double lon = center.lon;
+ char chlat = lat < 0 ? 'S' : 'N';
+ char chlon = lon < 0 ? 'W' : 'E';
+
+ if (lat < 0) lat = -lat;
+ if (lon < 0) lon = -lon;
+ String maptype_string = String.format("%s-", AltosMap.maptype_names[maptype]);
+ String format_string;
+ if (maptype == AltosMap.maptype_hybrid || maptype == AltosMap.maptype_satellite || maptype == AltosMap.maptype_terrain)
+ format_string = "jpg";
+ else
+ format_string = "png";
+ return new File(AltosPreferences.mapdir(),
+ String.format("map-%c%.6f,%c%.6f-%s%d%s.%s",
+ chlat, lat, chlon, lon, maptype_string, zoom, scale == 1 ? "" : String.format("-%d", scale), format_string));
+ }
+
+ public static String google_maps_api_key = null;
+
+ private static String google_map_url(AltosLatLon center, int zoom, int maptype, int px_size, int scale, String format_string) {
+ return String.format("http://maps.google.com/maps/api/staticmap?center=%.6f,%.6f&zoom=%d&size=%dx%d&scale=%d&sensor=false&maptype=%s&format=%s&key=%s",
+ center.lat, center.lon, zoom, px_size, px_size, scale,
+ AltosMap.maptype_names[maptype], format_string, google_maps_api_key);
+ }
+
+ private static String altos_map_url(AltosLatLon center, int zoom, int maptype, int px_size, int scale, String format_string) {
+ return String.format("https://maps.altusmetrum.org/cgi-bin/altos-map?lat=%.6f&lon=%.6f&zoom=%d",
+ center.lat, center.lon, zoom);
+ }
+
+ private static String map_url(AltosLatLon center, int zoom, int maptype, int px_size, int scale) {
+ String format_string;
+
+ if (maptype == AltosMap.maptype_hybrid || maptype == AltosMap.maptype_satellite || maptype == AltosMap.maptype_terrain)
+ format_string = "jpg";
+ else
+ format_string = "png32";
+
+ for (int s = 1; s < scale; s <<= 1)
+ zoom--;
+
+ px_size /= scale;
+
+ if (google_maps_api_key != null)
+ return google_map_url(center, zoom, maptype, px_size, scale, format_string);
+ else
+ return altos_map_url(center, zoom, maptype, px_size, scale, format_string);
+ }
+
+ public synchronized int status() {