Created
October 26, 2021 17:30
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xarray-native approach to adding a cyclic pixel (aka wrap-around pixel) to arrays in an xarray.Dataset.
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| import xarray as xr | |
| def add_cyclic(ds, dim): | |
| """ | |
| Adds wrap-around, appending first value to end of data for named dimension. | |
| Basically an xarray version of ``cartopy.util.add_cyclic_point()``. | |
| """ | |
| return ds.map( | |
| lambda x, d: xr.concat([x, x.isel({d: 0})], dim=d), | |
| keep_attrs=True, | |
| d=str(dim), | |
| ) |
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