Why can't parse 3857?

[wsf1990]

Why can't our package parse 3857?
Use this code:

parse.from_epsg_code(3857)

This will return None

[micahcochran]

EPSG:3857 isn't on the website spatiatreference.org, which is where from_epsg_code() gets its epsg code information.

spatialrefence.org hasn't been updated since 2013 per it's homepage. There's probably a better source for EPSG codes.

[wsf1990]

If this how can I parse the 3857 crs?

[micahcochran]

epsg.io seems like it would be a good replacement for spatialreference.org. (Patch?)

You could directly feed a string such as this OGC WKT version of 3857:

PROJCS["WGS 84 / Pseudo-Mercator",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Mercator_1SP"],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["X",EAST],AXIS["Y",NORTH],EXTENSION["PROJ4","+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 +wktext  +no_defs"],AUTHORITY["EPSG","3857"]]

and use pycrs.parse.from_ogc_wkt(ogc_wkt)

Or you could load the file from epsg.io: https://epsg.io/3857.wkt
and use pycrs.load.from_url("https://epsg.io/3857.wkt")

[wsf1990]

Thanks!