#315 A world map of #surf tweets

During 300 days, I harvested every tweet containing the hashtags #surf, #kitesurf and #windsurf. Here is a map showing the localisation of these tweets. This projects is explained more in detail in the blog of the R graph gallery. This map is done using the Basemap library of python. See more example in the dedicated section of the Python Graph Gallery.

# Libraries
import pandas as pd
from mpl_toolkits.basemap import Basemap
import matplotlib.pyplot as plt

# Set the dimension of the figure
my_dpi=96
plt.figure(figsize=(2600/my_dpi, 1800/my_dpi), dpi=my_dpi)

# read the data (on the web)
data = pd.read_csv('http://python-graph-gallery.com/wp-content/uploads/TweetSurfData.csv', sep=";")

# Make the background map
m=Basemap(llcrnrlon=-180, llcrnrlat=-65,urcrnrlon=180,urcrnrlat=80)
m.drawmapboundary(fill_color='#A6CAE0', linewidth=0)
m.fillcontinents(color='grey', alpha=0.3)
m.drawcoastlines(linewidth=0.1, color="white")

# prepare a color for each point depending on the continent.
data['labels_enc'] = pd.factorize(data['homecontinent'])[0]

# Add a point per position
m.scatter(data['homelon'], data['homelat'], s=data['n']/6, alpha=0.4, c=data['labels_enc'], cmap="Set1")

# copyright and source data info
plt.text( -170, -58,'Where people talk about #Surf\n\nData collected on twitter by @R_Graph_Gallery during 300 days\nPlot realized with Python and the Basemap library', ha='left', va='bottom', size=9, color='#555555' )

# Save as png
plt.savefig('#315_Tweet_Surf_Bubble_map1.png', bbox_inches='tight')