cartopy+set_extent increasing y limits

[jithuraju1290]

Sorry if it is a wrong place to put this. New to github

Using cartopy = 0.15.1 and matplotlib = 2.0.2.

Plotting with ax.set_extent increases the y limits about -2(degree) at bottom and 4(degree) at top

import matplotlib.pyplot as plt
import cartopy.crs as ccrs
import cartopy.feature as cfeature
plt.figure(figsize=(10,8))
ax = plt.axes(projection=ccrs.PlateCarree())
ax.add_feature(cfeature.LAND)
ax.add_feature(cfeature.OCEAN)
ax.set_extent([36,105,-12,30])
ax.gridlines(crs=ccrs.PlateCarree(), draw_labels=True)
plt.show()

However ax.set_xlim and ax.set_ylim is working fine

ax.set_xlim(36,105)
ax.set_ylim(-12,30)
ax.gridlines(crs=ccrs.PlateCarree(), draw_labels=True)
plt.show()

Is there a problem with ax.set_extent in the above mentioned versions of matplotlib and cartopy ?

[ajdawson]

You should add the crs keyword to set_extent:

ax.set_extent([36,105,-12,30], crs=ccrs.PlateCarree())

Hopefully this will solve your problem.

Our default choice for the coordinate reference system is not intuitive, and therefore it is always best to be explicit. We've updated all the examples to do this for the next version, and have plans to change the default too.

[raybellwaves]

Hi @jithuraju1290, stackoverflow is a good place to ask these types of questions.
https://stackoverflow.com/questions/tagged/cartopy
@ajdawson answered the same Q here for me a while ago
https://stackoverflow.com/questions/43470238/cartopy-set-extent-extending-requested-boundary