Geodesy.
Replaced by Greenwich-based Carthage geogCRS.
Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: grads.
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ GEOGCRS["Carthage (Paris)", DATUM["Carthage (Paris)", ELLIPSOID["Clarke 1880 (IGN)",6378249.2,293.466021293627, LENGTHUNIT["metre",1]]], PRIMEM["Paris",2.5969213, ANGLEUNIT["grad",0.0157079632679489]], CS[ellipsoidal,2], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["grad",0.0157079632679489]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["grad",0.0157079632679489]], USAGE[ SCOPE["Geodesy."], AREA["Tunisia - onshore."], BBOX[30.23,7.49,37.4,11.59]], ID["EPSG",4816]]], TARGETCRS[ GEOGCRS["Carthage", DATUM["Carthage", ELLIPSOID["Clarke 1880 (IGN)",6378249.2,293.466021293627, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,2], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]], USAGE[ SCOPE["Geodesy."], AREA["Tunisia - onshore and offshore."], BBOX[30.23,7.49,38.41,13.67]], ID["EPSG",4223]]], ABRIDGEDTRANSFORMATION["Carthage (Paris) to Carthage (1)", METHOD["Longitude rotation", ID["EPSG",9601]], PARAMETER["Longitude offset",8414.02501199997, ID["EPSG",8602]], USAGE[ SCOPE["Change of prime meridian."], AREA["Tunisia - onshore."], BBOX[30.23,7.49,37.4,11.59]], ID["EPSG",1881]]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "GeographicCRS", "name": "Carthage (Paris)", "datum": { "type": "GeodeticReferenceFrame", "name": "Carthage (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": 4816 } }, "target_crs": { "type": "GeographicCRS", "name": "Carthage", "datum": { "type": "GeodeticReferenceFrame", "name": "Carthage", "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": 4223 } }, "transformation": { "name": "Carthage (Paris) to Carthage (1)", "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": 1881 } } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=longlat +ellps=clrk80ign +pm=paris +no_defs +type=crs"> <Layer srs="+proj=longlat +ellps=clrk80ign +pm=paris +no_defs +type=crs"> </Layer> </Map>