Смысл такой: нарисовать график при помощи get_latest_data(1) и через 5 секунд поменять его на данные из get_latest_data(2)
from threading import Thread
from queue import Empty, Queue
import time
import tkinter as tk
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg#, NavigationToolbar2TkAgg
from matplotlib.figure import Figure
class tkChartGUI(tk.Frame):
def __init__(self, parent):
tk.Frame.__init__(self, parent)
self.parent = parent
self.initUI()
def get_latest_data(self, dataid):
x_array=[]
y_array=[]
if (dataid == 1):
x_array=[1,2,3,4,5,6,7,8,9,10,11,12,13,14];
y_array=[0.5,0.7,0.3,1.0,0.6,0.9,0.5,0.2,0.1,0.5,0.33,0.55,0.3,0.6]
if (dataid == 2):
x_array=[1,2,3,4,5,6,7,8,9,10,11,12,13,14];
y_array=[0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0,1.1,1.1,1.2,1.3]
return (x_array, y_array)
def initUI(self):
self.parent.title("Simple chart")
self.parent.geometry("800x600+300+100")
result_queue = Queue()
Thread(target=self.get_latest_data, args=[result_queue], daemon=True).start()
x_array, y_array = self.get_latest_data(1)
f = Figure(figsize=(5, 3), dpi=150)
a = f.add_subplot(111)
a.set_xlabel("Values_X")
a.set_ylabel("Values_Y")
a.yaxis.grid(True, which='major')
a.xaxis.grid(True, which='major')
a.plot(x_array, y_array)
canvas = FigureCanvasTkAgg(f, master=self.parent)
canvas.show()
canvas.get_tk_widget().grid(row=0,column=0)
def display_result(a, q):
x_array = []
y_array = []
try:
x_array = q.get(block=False) # get data
y_array = q.get(block=False)
a.plot(x_array, y_array)
canvas.draw()
except Empty:
#a.clear()
timeout_millis = round(100 - (5000 * time.time()) % 100)
self.parent.after(timeout_millis, display_result, a, q)
def get_result(q):
x_array, y_array = self.get_latest_data(2)
q.put(x_array) # put data in FIFO queue x coords array
q.put(y_array) # put data in FIFO queue y coords array
display_result(a, result_queue)
def onExit(self):
self.quit()
def main():
root = tk.Tk()
my_gui = tkChartGUI(root)
root.mainloop()
if __name__ == '__main__':
main()
