proj4.defs("EPSG:20791","+proj=tmerc +lat_0=39.6666666666667 +lon_0=1 +k=1 +x_0=0 +y_0=0 +ellps=intl +pm=lisbon +towgs84=-282.1,-72.2,120,-1.592,0.145,-0.89,-4.46 +units=m +no_defs +type=crs");