Definition: OGC Well Known Text
GEOGCS["NDG (Paris) (deprecated)", DATUM["Nord_de_Guerre_Paris", SPHEROID["Plessis 1817",6376523,308.64, AUTHORITY["EPSG","7027"]], AUTHORITY["EPSG","6902"]], PRIMEM["Paris",2.33722917, AUTHORITY["EPSG","8903"]], UNIT["grad",0.0157079632679489, AUTHORITY["EPSG","9105"]], AUTHORITY["EPSG","4902"]]
Definition: OGC Well Known Text 2 (2019)
GEOGCRS["NDG (Paris)", DATUM["Nord de Guerre (Paris)", ELLIPSOID["Plessis 1817",6376523,308.64, 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["France - Alsace."], BBOX[47.42,6.84,49.07,8.23]], ID["EPSG",4902]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeographicCRS", "name": "NDG (Paris)", "datum": { "type": "GeodeticReferenceFrame", "name": "Nord de Guerre (Paris)", "ellipsoid": { "name": "Plessis 1817", "semi_major_axis": 6376523, "inverse_flattening": 308.64 }, "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 } } ] }, "scope": "Geodesy.", "area": "France - Alsace.", "bbox": { "south_latitude": 47.42, "west_longitude": 6.84, "north_latitude": 49.07, "east_longitude": 8.23 }, "id": { "authority": "EPSG", "code": 4902 } }
Definition: GeoServer
4902=GEOGCS["NDG (Paris) (deprecated)",DATUM["Nord_de_Guerre_Paris",SPHEROID["Plessis 1817",6376523,308.64,AUTHORITY["EPSG","7027"]],AUTHORITY["EPSG","6902"]],PRIMEM["Paris",2.33722917,AUTHORITY["EPSG","8903"]],UNIT["grad",0.0157079632679489,AUTHORITY["EPSG","9105"]],AUTHORITY["EPSG","4902"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=longlat +a=6376523 +rf=308.64 +pm=paris +no_defs +type=crs"> <Layer srs="+proj=longlat +a=6376523 +rf=308.64 +pm=paris +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4902, 'EPSG', 4902, '+proj=longlat +a=6376523 +rf=308.64 +pm=paris +no_defs +type=crs', 'GEOGCS["NDG (Paris) (deprecated)",DATUM["Nord_de_Guerre_Paris",SPHEROID["Plessis 1817",6376523,308.64,AUTHORITY["EPSG","7027"]],AUTHORITY["EPSG","6902"]],PRIMEM["Paris",2.33722917,AUTHORITY["EPSG","8903"]],UNIT["grad",0.0157079632679489,AUTHORITY["EPSG","9105"]],AUTHORITY["EPSG","4902"]]');