#!/usr/bin/env python
#-*- coding:utf8-*-

# ------------------------------
# Imports
# ------------------------------ 
import matplotlib.pyplot as plt


# ------------------------------
# Bloc principal
# ------------------------------

if __name__ == '__main__':
    plt.plot([-1,3,-3,0],[4,2.5,1,(2.5+1)/2],'+',color = "b")
    plt.annotate("E", xy = (-1,4), xytext = (-1,4.2))
    plt.annotate("F", xy = (3,2.5), xytext = (3,2.7))
    plt.annotate("G", xy = (-3,1), xytext = (-3,1.2))
    plt.annotate("K", xy = (0,(2.5+1)/2), xytext = (0.2,(2.5+1)/2))


    plt.axis([-4,4,-3,5]) 
    plt.grid(True)
    plt.show()


# ------------------------------
# Fin du programme
# ------------------------------

# -----------------------------
# Reglages pour 'vim'
# vim:set autoindent expandtab tabstop=4 shiftwidth=4:
# cursor: 16 del