該座標系英文名稱:China Geodetic Coordinate System 2000
EPSG代碼:EPSG:4490
EPSG網站鏈接:http://epsg.io/4490
某些國外廠商的GIS軟件可能缺省沒有支持CGCS2000,所以需要自定義。在EPSG網站上面能夠查到座標系的WKT表示,如下:
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"]]
如下圖所示,EPSG網站也給出了主流GIS軟件中定義該座標系的方式,很省心,有木有?