How can I rotate lat ticklabels of GeoAxes?

[gepcel]

In the following example, I want to rotate the lat ticklabels by 90°, How can I do that?

import proplot as pplt
fig, ax = pplt.subplots(proj='cyl')
ax.format(lonlim=[10.1, 10.13],latlim=[30.1,30.13], lonlines=0.01, latlines=0.015,labels=True)

Steps to do in matplotlib:

from cartopy.mpl.ticker import LongitudeFormatter, LatitudeFormatter
ax = plt.subplot(projection=ccrs.PlateCarree())
ax.set_extent([10.1,10.13,30.1,30.13])
ax.set_xticks([10.11,10.12])
ax.set_yticks([30.11,30.12])
ax.xaxis.set_major_formatter(LongitudeFormatter())
ax.yaxis.set_major_formatter(LatitudeFormatter())
plt.setp(ax.get_yticklabels(), rotation=90, va='center')

[lukelbd]

This is not possible with any format keywords yet, but you can do this by manually updating the cartopy gridliner controlled by proplot as shown below.

Note in the latest stable release, this requires accessing the private attribute ax._gridlines_major, but in the next release / in the "dev" version (install with pip install git+https://github.com/proplot-dev/proplot), this can be done using a public, documented property ax.gridlines_major that points to ax._gridlines_major.

import proplot as pplt
fig, axs = pplt.subplots(proj='cyl')
ax = axs[0]
ax._gridlines_major.ylabel_style.update({'rotation': 90})
ax.format(lonlim=[10.1, 10.13],latlim=[30.1,30.13], lonlines=0.01, latlines=0.015,labels=True,)

[gepcel]

Thank you. This is what I want. I'll close this.