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use cf to calculate 2d lat lon bounds #384

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use cf to calculate 2d lat lon bounds #384

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5 changes: 1 addition & 4 deletions xesmf/frontend.py
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Original file line number Diff line number Diff line change
Expand Up @@ -95,9 +95,6 @@ def _get_lon_lat_bounds(ds):
lon_bnds = ds.cf.get_bounds('longitude')
lat_bnds = ds.cf.get_bounds('latitude')
except KeyError: # bounds are not already present
if ds.cf['longitude'].ndim > 1:
# We cannot infer 2D bounds, raise KeyError as custom "lon_b" is missing.
raise KeyError('lon_b')
lon_name = ds.cf['longitude'].name
lat_name = ds.cf['latitude'].name
ds = ds.cf.add_bounds([lon_name, lat_name])
Expand Down Expand Up @@ -795,7 +792,7 @@ def __init__(
where masked values are identified by 0, and non-masked values by 1.

For conservative methods, if bounds are not present, they will be
computed using `cf-xarray` (only 1D coordinates are currently supported).
computed using `cf-xarray`.

Shape can be 1D (n_lon,) and (n_lat,) for rectilinear grids,
or 2D (n_y, n_x) for general curvilinear grids.
Expand Down