Simon's solution to plotting maps from xarray

map_plotting_with_xarray.py

'''
Simon's solution to plotting maps from xarray
'''

import cartopy
def cyclicContourf(ax, dataFrame, *args, **kwargs):
    """
    make  a filled contour by adding a cyclic value for longitude.
    :param dataFrame: data frame
    :param args: passsed straight through to contourf
    :param kwargs: passed straight through to contourf
    :return: the result..
    """
    data, lon = cartopy.util.add_cyclic_point(dataFrame.values, dataFrame.longitude.values)
    cm = ax.contourf(lon,dataFrame.latitude,data,*args,**kwargs)
    return cm

def cyclicContour(ax, dataFrame, *args, **kwargs):
    """
    make  a contour by adding a cyclic value for longitude.
    :param dataFrame: data frame
    :param args: passsed straight through to contour
    :param kwargs: passed straight through to contour
    :return: the result..
    """
    try:
        dataFrame.load()
    except AttributeError:
        pass
    data, lon = cartopy.util.add_cyclic_point(dataFrame.values, dataFrame.longitude.values)
    cm = ax.contour(lon,dataFrame.latitude,data,*args,**kwargs)
    return cm