This page describe how to add a connection line between 2 places on a map with python and the basemap library. Here we represent the connection between New York and London. Note that the line is not straight: it is indeed the shortest route between these 2 cities, taking into account that the earth is a sphere. We call it a great circle, and it can be drawn with the drawgreatcircle function:
# libraries from mpl_toolkits.basemap import Basemap import numpy as np import matplotlib.pyplot as plt # A basic map m=Basemap(llcrnrlon=-100, llcrnrlat=20,urcrnrlon=30,urcrnrlat=70) m.drawmapboundary(fill_color='#A6CAE0', linewidth=0) m.fillcontinents(color='grey', alpha=0.7, lake_color='grey') m.drawcoastlines(linewidth=0.1, color="white") # Add a connection between new york and London startlat = 40.78; startlon = -73.98 arrlat = 51.53; arrlon = 0.08 m.drawgreatcircle(startlon,startlat,arrlon,arrlat, linewidth=2, color='orange')
