proj4.defs("EPSG:27221","+proj=tmerc +lat_0=-42.8863223611111 +lon_0=170.9799935 +k=1 +x_0=300000 +y_0=700000 +ellps=intl +towgs84=59.47,-5.04,187.44,-0.47,0.1,-1.024,-4.5993 +units=m +no_defs +type=crs");