EPSG:4490

China Geodetic Coordinate System 2000

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: China Geodetic Coordinate System 2000

Datum: China 2000

Ellipsoid: CGCS2000

Prime meridian: Greenwich

Data source: EPSG

Information source: EPSG. See 3D CRS for original information source.

Revision date: 2020-08-31

Scope: Horizontal component of 3D system.

Remarks: Adopted July 2008. Replaces Xian 1980 (CRS code 4610).

Area of use: China - onshore and offshore.

Coordinate system: Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: degree

Covered area powered by MapTiler MapTiler logo
SimpleMap

Center coordinates
104.2 35.13

WGS84 bounds:
73.62 16.7
134.77 53.56

China - onshore and offshore.
MapTiler banner

Definition: OGC Well Known Text

GEOGCS["China Geodetic Coordinate System 2000",
    DATUM["China_2000",
        SPHEROID["CGCS2000",6378137,298.257222101,
            AUTHORITY["EPSG","1024"]],
        AUTHORITY["EPSG","1043"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4490"]]

Definition: OGC Well Known Text 2 (2019)

GEOGCRS["China Geodetic Coordinate System 2000",
    DATUM["China 2000",
        ELLIPSOID["CGCS2000",6378137,298.257222101,
            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["Horizontal component of 3D system."],
        AREA["China - onshore and offshore."],
        BBOX[16.7,73.62,53.56,134.77]],
    ID["EPSG",4490]]

Definition: ESRI Well Known Text

GEOGCS["GCS_China_Geodetic_Coordinate_System_2000",
    DATUM["D_China_2000",
        SPHEROID["CGCS2000",6378137.0,298.257222101]],
    PRIMEM["Greenwich",0.0],
    UNIT["Degree",0.0174532925199433]]

Definition: PROJ.4

+proj=longlat +ellps=GRS80 +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:4490","+proj=longlat +ellps=GRS80 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeographicCRS",
    "name": "China Geodetic Coordinate System 2000",
    "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "China 2000",
        "ellipsoid": {
            "name": "CGCS2000",
            "semi_major_axis": 6378137,
            "inverse_flattening": 298.257222101
        }
    },
    "coordinate_system": {
        "subtype": "ellipsoidal",
        "axis": [
            {
                "name": "Geodetic latitude",
                "abbreviation": "Lat",
                "direction": "north",
                "unit": "degree"
            },
            {
                "name": "Geodetic longitude",
                "abbreviation": "Lon",
                "direction": "east",
                "unit": "degree"
            }
        ]
    },
    "scope": "Horizontal component of 3D system.",
    "area": "China - onshore and offshore.",
    "bbox": {
        "south_latitude": 16.7,
        "west_longitude": 73.62,
        "north_latitude": 53.56,
        "east_longitude": 134.77
    },
    "id": {
        "authority": "EPSG",
        "code": 4490
    }
}

Definition: GeoServer

4490=GEOGCS["China Geodetic Coordinate System 2000",DATUM["China_2000",SPHEROID["CGCS2000",6378137,298.257222101,AUTHORITY["EPSG","1024"]],AUTHORITY["EPSG","1043"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4490"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=GRS80"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=GRS80 +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=GRS80 +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4490, 'EPSG', 4490, '+proj=longlat +ellps=GRS80 +no_defs +type=crs', 'GEOGCS["China Geodetic Coordinate System 2000",DATUM["China_2000",SPHEROID["CGCS2000",6378137,298.257222101,AUTHORITY["EPSG","1024"]],AUTHORITY["EPSG","1043"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4490"]]');