Why do my google tiles look poor in a Cartopy map?

Question

I am a bit puzzled by the rendering of google tiles with Cartopy. The map looks extremely poor compared to the standard google map look.

Example (code from https://ocefp

Answer 1

There is a small typo in the accepted answer.

ax.add_image(request, 10, interpolation='spine36')

should be

ax.add_image(request, 10, interpolation='spline36')