proj4.defs("EPSG:10457","+proj=tmerc +lat_0=0 +lon_0=121.5 +k=1.00004949 +x_0=60000 +y_0=3700000 +ellps=GRS80 +nadgrids=GDA94_GDA2020_conformal_and_distortion.gsb +units=m +no_defs +type=crs");