The problem comes from me drawwing a map via cartopy. I want to add a little sub_axes on the lower_right corner of the main axes. But it seems hard to set the location and size of the sub_axes.

The first thing I tried wasfig.add_axes(). But it doesn't accepttransform args, while thedocument says it should. Without thetransform args, the location (left, bottom) and size (width, height) wasn't on the transform ofax.

importmatplotlib.pyplotaspltfig,ax=plt.subplots(1,1)ax2=fig.add_axes([0.8,0,0.2,0.2],transform=ax.transAxes,projection='rectilinear')

The second I tried wasinset_axes, which was very easy to use. But it doesn't acceptprojection args.

frommpl_toolkits.axes_grid.inset_locatorimportinset_axesimportmatplotlib.pyplotaspltfig,ax=plt.subplots(1,1)# The following line doesn't workax2=inset_axes(ax,width='20%',height='20%',axes_kwargs={'projection':'rectilinear'})# Doesn't work neither:ax2=inset_axes(ax,width='20%',height='20%',projection='rectilinear')

I may get what I want byax.get_position(), the set the position according it.