SciTools/cartopy — pull request #40 by esc24 (2012-09-18 13:19:57+00:00)
Title: Added default ellipse to CRS

Prevents errors on systems without 'proj_def.dat' i.e.
```
>>> cartopy.crs.Robinson()
Traceback (most recent call last):
File "", line 1, in
File "/home/esc24/cartopy/build/lib.linux-x86_64-2.7/cartopy/crs.py", line 588, in __init__
super(Robinson, self).__init__(proj4_params, central_longitude)
File "/home/esc24/cartopy/build/lib.linux-x86_64-2.7/cartopy/crs.py", line 543, in __init__
super(_WarpedRectangularProjection, self).__init__(proj4_params)
File "_crs.pyx", line 63, in cartopy._crs.CRS.__init__ (lib/cartopy/_crs.c:1488)
cartopy._crs.Proj4Error: Error from proj.4: major axis or radius = 0 or not given
```
See this very old thread: http://lists.maptools.org/pipermail/proj/2001-February/000140.html