IGNF:ATIGG - ATIG geographiques grades Paris (gr)

Attributes

Unit

grad

Scope

NATIONALE, HISTORIQUE

Remarks

None

Area of use

FRANCE METROPOLITAINE (CORSE COMPRISE)

Data Source: EPSG v11.016 2024-08-31

Datum: Ancienne Triangulation Francaise (Paris)

Coordinate System: ellipsoidal

Projection: Undefined

Geodetic CRS: Undefined

Export

GEOGCRS["ATIG geographiques grades Paris (gr)",
    DATUM["Ancienne Triangulation Francaise (Paris)",
        ELLIPSOID["Plessis 1817",6376523,308.64,
            LENGTHUNIT["metre",1]]],
    PRIMEM["Paris RGS",2.33720833333333,
        ANGLEUNIT["degree",0.0174532925199433]],
    CS[ellipsoidal,2],
        AXIS["geodetic longitude (Lon)",east,
            ORDER[1],
            ANGLEUNIT["grad",0.0157079632679489]],
        AXIS["geodetic latitude (Lat)",north,
            ORDER[2],
            ANGLEUNIT["grad",0.0157079632679489]],
    USAGE[
        SCOPE["NATIONALE, HISTORIQUE"],
        AREA["FRANCE METROPOLITAINE (CORSE COMPRISE)"],
        BBOX[41,-5.5,52,10]],
    ID["IGNF","ATIGG"]]
{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "GeographicCRS",
  "name": "ATIG geographiques grades Paris (gr)",
  "datum": {
    "type": "GeodeticReferenceFrame",
    "name": "Ancienne Triangulation Francaise (Paris)",
    "ellipsoid": {
      "name": "Plessis 1817",
      "semi_major_axis": 6376523,
      "inverse_flattening": 308.64
    },
    "prime_meridian": {
      "name": "Paris RGS",
      "longitude": 2.33720833333333
    }
  },
  "coordinate_system": {
    "subtype": "ellipsoidal",
    "axis": [
      {
        "name": "Geodetic longitude",
        "abbreviation": "Lon",
        "direction": "east",
        "unit": {
          "type": "AngularUnit",
          "name": "grad",
          "conversion_factor": 0.0157079632679489
        }
      },
      {
        "name": "Geodetic latitude",
        "abbreviation": "Lat",
        "direction": "north",
        "unit": {
          "type": "AngularUnit",
          "name": "grad",
          "conversion_factor": 0.0157079632679489
        }
      }
    ]
  },
  "scope": "NATIONALE, HISTORIQUE",
  "area": "FRANCE METROPOLITAINE (CORSE COMPRISE)",
  "bbox": {
    "south_latitude": 41,
    "west_longitude": -5.5,
    "north_latitude": 52,
    "east_longitude": 10
  },
  "id": {
    "authority": "IGNF",
    "code": "ATIGG"
  }
}
{'crs_wkt': 'GEOGCRS["ATIG geographiques grades Paris (gr)",DATUM["Ancienne '
            'Triangulation Francaise (Paris)",ELLIPSOID["Plessis '
            '1817",6376523,308.64,LENGTHUNIT["metre",1]]],PRIMEM["Paris '
            'RGS",2.33720833333333,ANGLEUNIT["degree",0.0174532925199433]],CS[ellipsoidal,2],AXIS["geodetic '
            'longitude '
            '(Lon)",east,ORDER[1],ANGLEUNIT["grad",0.0157079632679489]],AXIS["geodetic '
            'latitude '
            '(Lat)",north,ORDER[2],ANGLEUNIT["grad",0.0157079632679489]],USAGE[SCOPE["NATIONALE, '
            'HISTORIQUE"],AREA["FRANCE METROPOLITAINE (CORSE '
            'COMPRISE)"],BBOX[41,-5.5,52,10]],ID["IGNF","ATIGG"]]',
 'geographic_crs_name': 'ATIG geographiques grades Paris (gr)',
 'grid_mapping_name': 'latitude_longitude',
 'horizontal_datum_name': 'Ancienne Triangulation Francaise (Paris)',
 'inverse_flattening': 308.64,
 'longitude_of_prime_meridian': 2.3372083333333333,
 'prime_meridian_name': 'Paris RGS',
 'reference_ellipsoid_name': 'Plessis 1817',
 'semi_major_axis': 6376523.0,
 'semi_minor_axis': 6355862.933255573}