proj4.defs("EPSG:9826","+proj=lcc +lat_0=46 +lon_0=3 +lat_1=45.25 +lat_2=46.75 +x_0=1700000 +y_0=5200000 +ellps=GRS80 +towgs84=-0.017,0.058,0.009,0.001305,0.00068,-0.001467,-0.00072 +units=m +no_defs +type=crs");