Label Areas in Python Matplotlib stackplot -

i generate labels inside areas of matplotlib stackplot. settle labeling line used bound area. consider example:

import numpy np matplotlib import pyplot plt  fnx = lambda : np.random.randint(5, 50, 10) x = np.arange(10) y1, y2, y3 = fnx(), fnx(), fnx() arealabels=['area1','area2','area3'] fig, ax = plt.subplots() ax.stackplot(x, y1, y2, y3) plt.show() 

this produces:

but produce this:

the matplotlib contour plots have type of labeling functionality (though lines labeled in case of contour plot).

any (or redirection post might have missed) appreciated.

ah, heuristics. this?:

import numpy np matplotlib import pyplot plt  length = 10 fnx = lambda : np.random.randint(5, 50, length) x = np.arange(length) y1, y2, y3 = fnx(), fnx(), fnx() arealabels=['area1','area2','area3'] fig, ax = plt.subplots() ax.stackplot(x, y1, y2, y3)  loc = y1.argmax() ax.text(loc, y1[loc]*0.25, arealabels[0])  loc = y2.argmax() ax.text(loc, y1[loc] + y2[loc]*0.33, arealabels[1])  loc = y3.argmax() ax.text(loc, y1[loc] + y2[loc] + y3[loc]*0.75, arealabels[2])   plt.show() 

which in test runs okayish:

finding best loc fancier -- maybe 1 wants x_n, x_(n+1) highest average value.