proj4.defs("EPSG:3177","+proj=tmerc +lat_0=0 +lon_0=17 +k=0.9965 +x_0=1000000 +y_0=0 +ellps=intl +towgs84=-208.4058,-109.8777,-2.5764,0,0,0,0 +units=m +no_defs +type=crs");