EPSG:4490 — China Geodetic Coordinate System 2000

Geographic 2D · China

Export Formats

OGC WKT

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"]
]

WKT2

GEOGCRS[
    "China Geodetic Coordinate System 2000",
    DATUM[
        "China 2000",
        ELLIPSOID[
            "CGCS2000",
            6378137,
            298.257222101,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",1024]
        ],
        ID["EPSG",1043]
    ],
    CS[ellipsoidal,2,ID["EPSG",6422]],
    AXIS["Geodetic latitude (Lat)",north],
    AXIS["Geodetic longitude (Lon)",east],
    ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
    ID["EPSG",4490]
]

PROJ.4

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

Proj4js

How to add a projection to Proj4js? →

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

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 4490,
  "name": "China Geodetic Coordinate System 2000",
  "kind": "geographic 2D",
  "area": "China",
  "unit": "degree (supplier to define representation)",
  "bbox": [
    16.7,
    73.62,
    53.56,
    134.77
  ],
  "proj4": "+proj=longlat +ellps=GRS80 +no_defs +type=crs"
}

PostGIS

How to add a projection to 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"]]');

MapServer

How to add a projection to MapServer? →

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

GeoServer

How to add a projection to 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"]]

Other CRS for CN

Other CRS using China 2000 (66)

Frequently Asked Questions

How do I add EPSG:4490 to GeoServer?

Add the following definition to your GeoServer configuration:

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"]]

Read the full GeoServer guide →

How do I add EPSG:4490 to PostGIS?

Add the following definition to your PostGIS configuration:

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"]]');

Read the full PostGIS guide →

How do I add EPSG:4490 to MapServer?

Add the following definition to your MapServer configuration:

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

Read the full MapServer guide →

How do I use EPSG:4490 with Proj4js?

Add the following definition to your Proj4js configuration:

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

Read the full Proj4js guide →