MV2

commonGrid(a, b, axes)[source]

Common Grid

Parameters
commonGrid(a,b,axes)tests if the grids associated with variables a, b are equal

and consistent with the list of axes.

If so, the common grid is returned, else None is returned.
a and b can be numpy arrays, in which case the result is None.
The common grid is ‘consistent’ with axes if the grid axes (e.g., the axes of
latitude and longitude coordinate variables) are members of the list ‘axes’.
If the grid(s) of a, b are rectilinear, the result is None, as the grids
are implicitly defined by the axes.