Using grid lines and labels

In this recipe, we will learn how to plot grid lines, and manage ticks and ticklabels. Cartopy has a predefined gridlines() function to manage these features, which has many helper functions to format the labels as desired.

We will plot four charts to demonstrate the default options, as well as the degree of customization possible when we want to plot the labels in a particular customized way.

Getting ready

You'll need to import the required libraries using the following commands:

import matplotlib.pyplot as plt
import matplotlib.ticker as mticker
from cartopy.mpl.ticker import LongitudeFormatter, LatitudeFormatter
import cartopy.crs as ccrs
from cartopy.mpl.gridliner import LONGITUDE_FORMATTER...