import matplotlib.pyplot as plt
import cartopy.crs as ccrs
from cartopy.examples.arrows import sample_data
def main():
ax = plt.axes(projection=ccrs.PlateCarree())
ax.set_extent([-90, 75, 10, 60])
ax.stock_img()
ax.coastlines()
x, y, u, v, vector_crs = sample_data(shape=(10, 14))
ax.barbs(x, y, u, v, length=5,
sizes=dict(emptybarb=0.25, spacing=0.2, height=0.5),
linewidth=0.95, transform=vector_crs)
plt.show()
if __name__ == '__main__':
main()