# -*- coding: utf-8 -*-
"""
Created on Tue Aug 28 14:18:10 2018

@author  ouyangmingjun [email protected]

"""

import matplotlib.pyplot as plt
import numpy as np
import os
def plot(path,i):
    
    a = np.loadtxt(path)#最普通的loadtxt
    #print(a[:,-3:])
    lim1=[10]*24
    lim2=[-10]*24
   # x=np.linspace(0,24,len(a[:,-3]))
    plt.figure(i)
    plt.plot(a[:,-3]*100,"b-",label="N",linewidth=3.8)
    plt.plot(a[:,-2]*100,"g-",label="E",linewidth=3.8)
    #plt.plot(x,a[:1440,-3]*100,"b-",label="N",linewidth=5.8)
    plt.plot(a[:,-1]*100,"r-",label="U",linewidth=3.8)
    plt.plot(lim1,"m--")
    plt.plot(lim2,"m--")
    font2 = {'family' : 'Times New Roman',
    'weight' : 'normal',
    'size'   : 15,
    }
    plt.ylabel("/cm",font2)
    plt.xlabel("/hour",font2)
    plt.title("DOY(230) 2018 BRUX  predict  60min",font2)
    plt.ylim(-50,50)
    plt.legend()
    plt.grid("on")
    plt.savefig(path+"{0}.png".format(i),dpi=300)
if __name__ == '__main__':
    i=0
    pathlist=os.listdir()
    for file in pathlist:
        if file.endswith(".pos"):
            plot(file,i)
            i=i+1