Google 900913 proj+ postGis

[url]http://www.cnblogs.com/mimi001/articles/1355080.html[/url]

POSTGIS:

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, srtext, proj4text) values (900913 ,’EPSG’,900913,’GEOGCS[“WGS 84”, DATUM[“World Geodetic System
1984″, SPHEROID[“WGS 84”, 6378137.0, 298.257223563,AUTHORITY[“EPSG”,”7030″]], AUTHORITY[“EPSG”,”6326″]],PRIMEM[“Greenwich”, 0.0, AUTHORITY[“EPSG”,”8901″]], NIT[“degree”,0.017453292519943295], AXIS[“Longitude”, EAST], AXIS[“Latitude”, NORTH],AUTHORITY[“EPSG”,”4326″]], PROJECTION[“Mercator_1SP”],PARAMETER[“semi_minor”, 6378137.0],
PARAMETER[“latitude_of_origin”,0.0], PARAMETER[“central_meridian”, 0.0], PARAMETER[“scale_factor”,1.0], PARAMETER[“false_easting”, 0.0], PARAMETER[“false_northing”, 0.0],UNIT[“m”, 1.0], AXIS[“x”, EAST], AXIS[“y”, NORTH],AUTHORITY[“EPSG”,”900913″]] |’,’+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m
+nadgrids=@null +no_defs’);

<900913> +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs
转载自：https://blog.csdn.net/iteye_15840/article/details/81678578