{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"BoundCRS","source_crs":{"type":"BoundCRS","source_crs":{"type":"ProjectedCRS","name":"NTF (Paris) / Lambert zone III","base_crs":{"type":"GeographicCRS","name":"NTF (Paris)","datum":{"type":"GeodeticReferenceFrame","name":"Nouvelle Triangulation Francaise (Paris)","ellipsoid":{"name":"Clarke 1880 (IGN)","semi_major_axis":6378249.2,"semi_minor_axis":6356515},"prime_meridian":{"name":"Paris","longitude":{"value":2.5969213,"unit":{"type":"AngularUnit","name":"grad","conversion_factor":0.0157079632679489}}}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":{"type":"AngularUnit","name":"grad","conversion_factor":0.0157079632679489}},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":{"type":"AngularUnit","name":"grad","conversion_factor":0.0157079632679489}}]},"id":{"authority":"EPSG","code":4807}},"conversion":{"name":"Lambert zone III","method":{"name":"Lambert Conic Conformal (1SP)","id":{"authority":"EPSG","code":9801}},"parameters":[{"name":"Latitude of natural origin","value":49,"unit":{"type":"AngularUnit","name":"grad","conversion_factor":0.0157079632679489},"id":{"authority":"EPSG","code":8801}},{"name":"Longitude of natural origin","value":0,"unit":{"type":"AngularUnit","name":"grad","conversion_factor":0.0157079632679489},"id":{"authority":"EPSG","code":8802}},{"name":"Scale factor at natural origin","value":0.999877499,"unit":"unity","id":{"authority":"EPSG","code":8805}},{"name":"False easting","value":600000,"unit":"metre","id":{"authority":"EPSG","code":8806}},{"name":"False northing","value":3200000,"unit":"metre","id":{"authority":"EPSG","code":8807}}]},"coordinate_system":{"subtype":"Cartesian","axis":[{"name":"Easting","abbreviation":"X","direction":"east","unit":"metre"},{"name":"Northing","abbreviation":"Y","direction":"north","unit":"metre"}]},"id":{"authority":"EPSG","code":27573}},"target_crs":{"type":"GeographicCRS","name":"NTF","datum":{"type":"GeodeticReferenceFrame","name":"Nouvelle Triangulation Francaise","ellipsoid":{"name":"Clarke 1880 (IGN)","semi_major_axis":6378249.2,"semi_minor_axis":6356515}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"}]},"id":{"authority":"EPSG","code":4275}},"transformation":{"name":"NTF (Paris) to NTF (1)","source_crs":{"type":"GeographicCRS","name":"NTF (Paris) (with Greenwich prime meridian)","datum":{"type":"GeodeticReferenceFrame","name":"Nouvelle Triangulation Francaise (Paris) (with Greenwich prime meridian)","ellipsoid":{"name":"Clarke 1880 (IGN)","semi_major_axis":6378249.2,"semi_minor_axis":6356515}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":{"type":"AngularUnit","name":"grad","conversion_factor":0.0157079632679489}},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":{"type":"AngularUnit","name":"grad","conversion_factor":0.0157079632679489}}]}},"method":{"name":"Longitude rotation","id":{"authority":"EPSG","code":9601}},"parameters":[{"name":"Longitude offset","value":2.5969213,"unit":{"type":"AngularUnit","name":"grad","conversion_factor":0.0157079632679489},"id":{"authority":"EPSG","code":8602}}],"id":{"authority":"EPSG","code":1763}}},"target_crs":{"type":"GeographicCRS","name":"WGS 72","datum":{"type":"DynamicGeodeticReferenceFrame","name":"World Geodetic System 1972","frame_reference_epoch":1972,"ellipsoid":{"name":"WGS 72","semi_major_axis":6378135,"inverse_flattening":298.26}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"}]},"id":{"authority":"EPSG","code":4322},"remarks":"Replaced by WGS 84."},"transformation":{"name":"NTF to WGS 72 (1)","source_crs":{"type":"GeographicCRS","name":"NTF","datum":{"type":"GeodeticReferenceFrame","name":"Nouvelle Triangulation Francaise","ellipsoid":{"name":"Clarke 1880 (IGN)","semi_major_axis":6378249.2,"semi_minor_axis":6356515}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"}]},"id":{"authority":"EPSG","code":4275}},"method":{"name":"Geocentric translations (geog2D domain)","id":{"authority":"EPSG","code":9603}},"parameters":[{"name":"X-axis translation","value":-168,"unit":"metre","id":{"authority":"EPSG","code":8605}},{"name":"Y-axis translation","value":-72,"unit":"metre","id":{"authority":"EPSG","code":8606}},{"name":"Z-axis translation","value":314,"unit":"metre","id":{"authority":"EPSG","code":8607}}],"id":{"authority":"EPSG","code":1277}}}