Missing plotting support for gridType="lambert" #122
Description
Is your feature request related to a problem? Please describe.
The plotting, as in quickplot() works well for gridtype lambert_lam whereas the pure lambert projection, https://codes.ecmwf.int/grib/format/grib2/templates/3/30/, returns the following error
File .../lib/python3.10/site-packages/earthkit/data/core/fieldlist.py:336, in Field.to_points(self, flatten, dtype, index)
334 return dict(x=lon, y=lat)
335 else:
--> 336 raise ValueError("to_points(): geographical coordinates in original CRS are not available")
338 # convert values to array format
339 assert r
ValueError: to_points(): geographical coordinates in original CRS are not available
Applying grib_set -s gridType=lambert_lam on the same file makes the plotting work.
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