proj4.defs("EPSG:4393","+proj=cass +lat_0=3.68034444444444 +lon_0=101.508244444444 +x_0=-21759.438 +y_0=55960.906 +ellps=evrst48 +towgs84=-11,851,5,0,0,0,0 +units=m +no_defs +type=crs");