proj4.defs("EPSG:31278","+proj=tmerc +lat_0=0 +lon_0=21 +k=0.9999 +x_0=7500000 +y_0=0 +ellps=bessel +towgs84=426.9,142.6,460.1,4.91,4.49,-12.42,17.1 +units=m +no_defs +type=crs");