Longitude labels over 180° are not plotted in cartopy v0.17

[wthsiao]

Description

For longitude over 180°, longitude labels are not shown and grid lines are not plotted correctly. This issue only appears in v0.6 but not in v0.5.

Steps to reproduce

import proplot as plot
# the cartopy version used is 0.17.0

f, axs = plot.subplots(proj='cyl', proj_kw={'lon_0':120})
axs.format(coast=True, latlines=30, lonlines=60, labels=True)

Expected behavior (in v0.5.0):

Actual behavior (in v0.6.4):

Proplot version

0.6.4

[lukelbd]

Thanks for the report. For now you can fix this bug simply by upgrading to cartopy 0.18. The cartopy grid labelling API changed a ton from 0.17 --> 0.18 -- I tried to make proplot's updates backwards-compatible with older cartopy versions but evidently missed this edge case.

[lukelbd]

Welp 1.5 years later... I found the solution. Not too important since none of the newer cartopy versions have this problem, but maybe it will help a new proplot user with an older version of cartopy.

Here's the result of your example using the dev branch and cartopy 0.17:

import proplot as plot
f, axs = plot.subplots(proj="cyl", proj_kw={"lon_0": 120})
axs.format(coast=True, latlines=30, lonlines=60, labels=True)