def translate_cmap(yourchoice):
    """
    Convert readable colormap to a matplotlib cmap entity
    """
    cmap_transposer = {'red_yellow_green': 'RdYlGn_r', 'yellow_orange_brown' : 'YlOrBr',
                       'blue_green' : 'winter'}
    return cmap_transposer[yourchoice]