proj4.defs("EPSG:28992","+proj=sterea +lat_0=52.1561605555556 +lon_0=5.38763888888889 +k=0.9999079 +x_0=155000 +y_0=463000 +ellps=bessel +towgs84=593.16,26.15,478.54,-6.3239,-0.5008,-5.5487,4.0775 +units=m +no_defs +type=crs");