EPSG:27574

NTF (Paris) / Lambert zone IV

Available transformations
to EPSG:4326

Selected transformation

Remarks:

Information source: OGP

Revision date: 2020-03-14

Steps of transformation: 1763 1193

Attributes

Unit: metre

Geodetic CRS: NTF (Paris)

Datum: Nouvelle Triangulation Francaise (Paris)

Ellipsoid: Clarke 1880 (IGN)

Prime meridian: Paris

Data source: EPSG

Revision date: 2001-11-06

Steps of transformation: 1763 1193

Scope: Engineering survey, topographic mapping.

Remarks: Introduced 1972. Replaces NTF (Paris) / Lambert Corse (code 27564).

Area of use: France - Corsica onshore.

Coordinate system: Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m.

Center coordinates
3595.6 4637350.79

Projected bounds:
-602564.8 4116362.42
516674.44 5209833.02

WGS84 bounds:
-4.87 41.31
9.63 51.14

France - onshore - mainland and Corsica.
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Definition: PROJ.4

+proj=lcc +lat_1=42.1649999999998 +lat_0=42.1649999999998 +lon_0=0 +k_0=0.99994471 +x_0=234.358 +y_0=4185861.369 +ellps=clrk80ign +pm=paris +towgs84=-168,-60,320,0,0,0,0 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:27574","+proj=lcc +lat_1=42.1649999999998 +lat_0=42.1649999999998 +lon_0=0 +k_0=0.99994471 +x_0=234.358 +y_0=4185861.369 +ellps=clrk80ign +pm=paris +towgs84=-168,-60,320,0,0,0,0 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "ProjectedCRS",
        "name": "NTF (Paris) / Lambert zone IV",
        "base_crs": {
            "name": "NTF (Paris)",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "Nouvelle Triangulation Francaise (Paris)",
                "ellipsoid": {
                    "name": "Clarke 1880 (IGN)",
                    "semi_major_axis": 6378249.2,
                    "inverse_flattening": 293.466021293627
                },
                "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 IV",
            "method": {
                "name": "Lambert Conic Conformal (1SP)",
                "id": {
                    "authority": "EPSG",
                    "code": 9801
                }
            },
            "parameters": [
                {
                    "name": "Latitude of natural origin",
                    "value": 46.85,
                    "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": 0.99994471,
                    "unit": "unity",
                    "id": {
                        "authority": "EPSG",
                        "code": 8805
                    }
                },
                {
                    "name": "False easting",
                    "value": 234.358,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8806
                    }
                },
                {
                    "name": "False northing",
                    "value": 4185861.369,
                    "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": 27574
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "NTF",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Nouvelle Triangulation Francaise",
            "ellipsoid": {
                "name": "Clarke 1880 (IGN)",
                "semi_major_axis": 6378249.2,
                "inverse_flattening": 293.466021293627
            }
        },
        "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)",
        "method": {
            "name": "Longitude rotation",
            "id": {
                "authority": "EPSG",
                "code": 9601
            }
        },
        "parameters": [
            {
                "name": "Longitude offset",
                "value": 8414.02501199997,
                "unit": {
                    "type": "Unit",
                    "name": "",
                    "conversion_factor": 1
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8602
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 1763
        }
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=lcc"
	"lat_1=42.1649999999998"
	"lat_0=42.1649999999998"
	"lon_0=0"
	"k_0=0.99994471"
	"x_0=234.358"
	"y_0=4185861.369"
	"ellps=clrk80ign"
	"pm=paris"
	"towgs84=-168,-60,320,0,0,0,0"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=lcc +lat_1=42.1649999999998 +lat_0=42.1649999999998 +lon_0=0 +k_0=0.99994471 +x_0=234.358 +y_0=4185861.369 +ellps=clrk80ign +pm=paris +towgs84=-168,-60,320,0,0,0,0 +units=m +no_defs +type=crs">
	<Layer srs="+proj=lcc +lat_1=42.1649999999998 +lat_0=42.1649999999998 +lon_0=0 +k_0=0.99994471 +x_0=234.358 +y_0=4185861.369 +ellps=clrk80ign +pm=paris +towgs84=-168,-60,320,0,0,0,0 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 27574, 'EPSG', 27574, '+proj=lcc +lat_1=42.1649999999998 +lat_0=42.1649999999998 +lon_0=0 +k_0=0.99994471 +x_0=234.358 +y_0=4185861.369 +ellps=clrk80ign +pm=paris +towgs84=-168,-60,320,0,0,0,0 +units=m +no_defs +type=crs', 'None');

Definition: OGC WKT 2 (2019)

BOUNDCRS[SOURCECRS[PROJCRS["NTF (Paris) / Lambert zone IV",BASEGEOGCRS["NTF (Paris)",DATUM["Nouvelle Triangulation Francaise (Paris)",ELLIPSOID["Clarke 1880 (IGN)",6378249.2,293.466021293627,LENGTHUNIT["metre",1]]],PRIMEM["Paris",2.5969213,ANGLEUNIT["grad",0.0157079632679489]],ID["EPSG",4807]],CONVERSION["Lambert zone IV",METHOD["Lambert Conic Conformal (1SP)",ID["EPSG",9801]],PARAMETER["Latitude of natural origin",46.85,ANGLEUNIT["grad",0.0157079632679489],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",0,ANGLEUNIT["grad",0.0157079632679489],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",0.99994471,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False easting",234.358,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False northing",4185861.369,LENGTHUNIT["metre",1],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["easting (X)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["northing (Y)",north,ORDER[2],LENGTHUNIT["metre",1]],ID["EPSG",27574]]],TARGETCRS[GEOGCRS["NTF",DATUM["Nouvelle Triangulation Francaise",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]],ID["EPSG",4275]]],ABRIDGEDTRANSFORMATION["NTF (Paris) to NTF (1)",METHOD["Longitude rotation",ID["EPSG",9601]],PARAMETER["Longitude offset",8414.02501199997,ID["EPSG",8602]],ID["EPSG",1763]]]