Add China South Sea

This example demonstrate how to add China South Sea sum-map using multiple map axes.

#Plot
axesm()
geoshow('cn_province', edgecolor='lightgray')
geoshow('cn_border', facecolor=(0,0,255))
ss = makesymbolspec('line', {'value':'Yangtze', 'color':(0,255,255), 'size':1}, \
    {'value':'Huang He', 'color':(0,255,255), 'size':1}, field='NAME')
geoshow('rivers', symbolspec=ss)
geoshow('cn_cities', facecolor='r', size=4, labelfield='NAME', fontname=u'楷体', fontsize=16, yoffset=15)
xlim(72, 136)
ylim(16, 55)
#Add south China Sea
axesm(position=[0.14,0.18,0.15,0.2], axison=False)
geoshow('cn_border', facecolor=(0,0,255))
xlim(106, 123)
ylim(2, 23)