proj4.defs("EPSG:2492","+proj=tmerc +lat_0=0 +lon_0=9 +k=1 +x_0=500000 +y_0=0 +ellps=krass +towgs84=43.822,-108.842,-119.585,1.455,-0.761,0.737,0.549 +units=m +no_defs +type=crs");