data.py 文件源码

def get_mesh(self, var, coords=None):
        """Get the mesh variable for the given `var`

        Parameters
        ----------
        var: xarray.Variable
            The data source whith the ``'mesh'`` attribute
        coords: dict
            The coordinates to use. If None, the coordinates of the dataset of
            this decoder is used

        Returns
        -------
        xarray.Coordinate
            The mesh coordinate"""
        mesh = var.attrs.get('mesh')
        if mesh is None:
            return None
        if coords is None:
            coords = self.ds.coords
        return coords.get(mesh, self.ds.coords.get(mesh))