public static MultiPolygon createMultiPolygon(List<Polygon> polygon) {
    return JTS_FACTORY.createMultiPolygon(polygon.toArray(EMPTY_POLYGON_ARRAY));
  }
Returns the length in pixels for a given number of meters on a 256x256 px tile at the given {@code zoom} level.
planetiler-core/src/main/java/com/onthegomap/planetiler/geo/GeoUtils.java