proj4.defs("EPSG:23700","+proj=somerc +lat_0=47.1443937222222 +lon_0=19.0485717777778 +k_0=0.99993 +x_0=650000 +y_0=200000 +ellps=GRS67 +towgs84=-56,75.77,15.31,-0.37,-0.2,-0.21,-1.01 +units=m +no_defs +type=crs");