Edit: Scratch the Winkel Tripel projection support. Proj4 doesn't define an inverse method for that projection (it's non-trivial), so it can't be used correctly by cartopy.
Edit: Scratch the Winkel Tripel projection support. Proj4 doesn't define an inverse method for that projection (it's non-trivial), so it can't be used correctly by cartopy.
I'd love to switch to Cartopy, but its documentation isn't comprehensive or well-presented. I check back every six months or so, and then forget about it again.
However, it's aimed at a very different audience (web-based interactive rendering of vector graphics, as opposed to desktop-based interactive rendering of scientific data). For example, as far as I know (I could be very wrong about this), there's no way to display image/raster data in kartograph.
That having been said, kartograph is a very slick library, and its built-in clustering methods for point data are particularly nice.