Topographic mapping.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Kousseri", "ellipsoid": { "name": "Clarke 1880 (RGS)", "semi_major_axis": 6378249.145, "inverse_flattening": 293.465 }, "scope": "Topographic mapping.", "area": "Cameroon - N'Djamena area.", "bbox": { "south_latitude": 11.7, "west_longitude": 14.17, "north_latitude": 12.77, "east_longitude": 15.09 }, "id": { "authority": "EPSG", "code": 6198 } }