import numpy as np import matplotlib.pyplot as plt t = [] r = [] # 建一个txt文件放自己的数据 data = np.loadtxt('11.txt') for i in range(len(data)): plt.ion() # 这个必须 t.append(data[i,0]) r.append(data[i,1]) theta = np.array(t) # 清屏 plt.clf() # 画极坐标图 plt.polar(theta*np.pi,r,'ro',lw=2) plt.ylim(0,1000) plt.pause(0.5) plt.ioff() # 这个也必须 plt.show()
可以加个定时器,让程序循环画图。
from threading import Timer import numpy as np import matplotlib.pyplot as plt def hello(): # print("hello, world") t = [] r = [] data = np.loadtxt('11.txt') for i in range(len(data)): plt.ion() t.append(data[i, 0]) r.append(data[i, 1]) theta = np.array(t) plt.clf() plt.polar(theta * np.pi, r, 'ro', lw=2) plt.ylim(0, 1000) plt.pause(0.01) plt.ioff() # plt.show() plt.pause(0.1) # plt.close() plt.clf() class RepeatingTimer(Timer): def run(self): while not self.finished.is_set(): self.function(*self.args, **self.kwargs) self.finished.wait(self.interval) t = RepeatingTimer(0.0, hello) t.start()