proj4.defs("EPSG:31461","+proj=tmerc +lat_0=0 +lon_0=3 +k=1 +x_0=1500000 +y_0=0 +ellps=bessel +towgs84=582,105,414,-1.04,-0.35,3.08,8.3 +units=m +no_defs +type=crs");