EPSG:4972 DEPRECATED

RRAF 1991

Attributes

Unit: metre

Geodetic CRS: RRAF 1991

Datum: Reseau de Reference des Antilles Francaises 1991

Ellipsoid: WGS 84

Prime meridian: Greenwich

Data source: EPSG

Information source: IGN Paris

Revision date: 2004-01-05

Scope: Geodesy.

Remarks: Replaces older local geographic 2D systems Fort Marigot and Sainte Anne CRS (codes 4621-22) in Guadeloupe and Fort Desaix (CRS code 4625) in Martinique.

Area of use: French Antilles onshore and offshore - Guadeloupe (including Grande Terre, Basse Terre, Marie Galante, Les Saintes, Iles de la Petite Terre, La Desirade); Martinique; St Barthélemy; St Martin.

Coordinate system: Cartesian 3D CS (geocentric). Axes: geocentric X Y Z. Orientations: X and Y in equatorial plane, X positive through intersection with prime meridian, Y through 0°N 90°E. Z axis parallel to mean earth rotation axis and positive towards North Pole. UoM: m.

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SimpleMap

Center coordinates
3006847.17 -5334117.05

Projected bounds:
2684154.95 -5545313.62
3322850.82 -5103250.36

WGS84 bounds:
-63.66 14.08
-57.52 18.53

French Antilles onshore and offshore - Guadeloupe (including Grande Terre, Basse Terre, Marie Galante, Les Saintes, Iles de la Petite Terre, La Desirade); Martinique; St Barthélemy; St Martin.
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Definition: OGC Well Known Text

GEOCCS["RRAF 1991 (deprecated)",
    DATUM["Reseau_de_Reference_des_Antilles_Francaises_1991",
        SPHEROID["WGS 84",6378137,298.257223563,
            AUTHORITY["EPSG","7030"]],
        AUTHORITY["EPSG","6640"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Geocentric X",OTHER],
    AXIS["Geocentric Y",OTHER],
    AXIS["Geocentric Z",NORTH],
    AUTHORITY["EPSG","4972"]]

Definition: OGC Well Known Text 2 (2019)

GEODCRS["RRAF 1991",
    DATUM["Reseau de Reference des Antilles Francaises 1991",
        ELLIPSOID["WGS 84",6378137,298.257223563,
            LENGTHUNIT["metre",1]]],
    PRIMEM["Greenwich",0,
        ANGLEUNIT["degree",0.0174532925199433]],
    CS[Cartesian,3],
        AXIS["(X)",geocentricX,
            ORDER[1],
            LENGTHUNIT["metre",1]],
        AXIS["(Y)",geocentricY,
            ORDER[2],
            LENGTHUNIT["metre",1]],
        AXIS["(Z)",geocentricZ,
            ORDER[3],
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Geodesy."],
        AREA["French Antilles onshore and offshore - Guadeloupe (including Grande Terre, Basse Terre, Marie Galante, Les Saintes, Iles de la Petite Terre, La Desirade); Martinique; St Barthélemy; St Martin."],
        BBOX[14.08,-63.66,18.53,-57.52]],
    ID["EPSG",4972]]

Definition: PROJ.4

+proj=geocent +ellps=WGS84 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:4972","+proj=geocent +ellps=WGS84 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeodeticCRS",
    "name": "RRAF 1991",
    "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "Reseau de Reference des Antilles Francaises 1991",
        "ellipsoid": {
            "name": "WGS 84",
            "semi_major_axis": 6378137,
            "inverse_flattening": 298.257223563
        }
    },
    "coordinate_system": {
        "subtype": "Cartesian",
        "axis": [
            {
                "name": "Geocentric X",
                "abbreviation": "X",
                "direction": "geocentricX",
                "unit": "metre"
            },
            {
                "name": "Geocentric Y",
                "abbreviation": "Y",
                "direction": "geocentricY",
                "unit": "metre"
            },
            {
                "name": "Geocentric Z",
                "abbreviation": "Z",
                "direction": "geocentricZ",
                "unit": "metre"
            }
        ]
    },
    "scope": "Geodesy.",
    "area": "French Antilles onshore and offshore - Guadeloupe (including Grande Terre, Basse Terre, Marie Galante, Les Saintes, Iles de la Petite Terre, La Desirade); Martinique; St Barthélemy; St Martin.",
    "bbox": {
        "south_latitude": 14.08,
        "west_longitude": -63.66,
        "north_latitude": 18.53,
        "east_longitude": -57.52
    },
    "id": {
        "authority": "EPSG",
        "code": 4972
    }
}

Definition: GeoServer

4972=GEOCCS["RRAF 1991 (deprecated)",DATUM["Reseau_de_Reference_des_Antilles_Francaises_1991",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6640"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Geocentric X",OTHER],AXIS["Geocentric Y",OTHER],AXIS["Geocentric Z",NORTH],AUTHORITY["EPSG","4972"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=geocent"
	"ellps=WGS84"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=geocent +ellps=WGS84 +units=m +no_defs +type=crs">
	<Layer srs="+proj=geocent +ellps=WGS84 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4972, 'EPSG', 4972, '+proj=geocent +ellps=WGS84 +units=m +no_defs +type=crs', 'GEOCCS["RRAF 1991 (deprecated)",DATUM["Reseau_de_Reference_des_Antilles_Francaises_1991",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6640"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Geocentric X",OTHER],AXIS["Geocentric Y",OTHER],AXIS["Geocentric Z",NORTH],AUTHORITY["EPSG","4972"]]');