Python basemap with scatter plot

Question

I am trying to plot the location of NYC and Berlin on a basemap with a scatter plot.

from mpl_toolkits.basemap import Basemap
import matplotlib.pyplot as plt
import numpy as np

m = Basemap(projection='robin',lon_0=0,resolution='l')

# New York and Berlin
lats = (13.388889,52.516667)
lons = (-74.0059,40.7127)

m.drawcountries(color='#ffffff', linewidth=0.5)
m.fillcontinents(color='#c0c0c0',lake_color='#ffffff')

x, y = m(lons, lats)  # transform coordinates
plt.scatter(x, y, 10, marker='o', color='Red') 

plt.savefig("filename.svg", figsize=(24,12))
plt.show()

However, only one of the points shows up on the map at the wrong location.

Can anyone assisst me and point out why one point shows up at the wrong location and the other dot doe snot show up at all?

Alexandre B. · Accepted Answer · 2019-06-23 18:19:33Z

2

The matter is your coordinate definition. You are mixing longitude and latitude. After checking the coordinates of Berlin and New York, it comes the following definition:

# Berlin & New York
lats = [52.516667, 40.730610 ]
lons = [13.388889, -73.935242]

Here the whole code:

from mpl_toolkits.basemap import Basemap
import matplotlib.pyplot as plt
import numpy as np

m = Basemap(projection='robin', lon_0=0, resolution='l')

# Berlin & New York
lats = [52.516667, 40.730610 ]
lons = [13.388889, -73.935242]

m.drawcountries(color='#ffffff', linewidth=0.5)
m.fillcontinents(color='#c0c0c0', lake_color='#ffffff')

x, y = m(lons, lats)
plt.plot(x, y, 'bo', color='r', markersize=5)

plt.show()

answered Jun 23, 2019 at 18:19

Alexandre B.

5,5002 gold badges19 silver badges46 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Stücke Over a year ago

Silly mistake. Thank you for your support! Much appreciated :) Works perfectly fine!

Collectives™ on Stack Overflow

Python basemap with scatter plot

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related