docs: public static double[] getTileLayerSize(TileCode code, Envelope maxExtent, double scale) {
  		double div = Math.pow(2, code.getTileLevel());
  		double tileWidth = Math.ceil((scale * maxExtent.getWidth()) / div) / scale;
  		double tileHeight = Math.ceil((scale * maxExtent.getHeight()) / div) / scale;
  		return new double[] { tileWidth, tileHeight };
  	}