proj4.defs("EPSG:21893","+proj=tmerc +lat_0=4.59904722222222 +lon_0=-71.0809166666667 +k=1 +x_0=1000000 +y_0=1000000 +ellps=intl +towgs84=307.871,305.803,-311.992,-4.216368e-05,-2.030416e-05,-6.209624e-05,2.181655 +units=m +no_defs +type=crs");