docs: public void fillTile(InternalTile tile, Envelope maxTileExtent)
  			throws GeomajasException {
  		List<InternalFeature> origFeatures = tile.getFeatures();
  		tile.setFeatures(new ArrayList<InternalFeature>());
  		for (InternalFeature feature : origFeatures) {
  			if (!addTileCode(tile, maxTileExtent, feature.getGeometry())) {
  				log.debug("add feature");
  				tile.addFeature(feature);
  			}
  		}
  	}