如何在tkinter中持续刷新FigureCanvasTkAgg
如何在tkinter中持续刷新FigureCanvasTkAgg
提问于 2020-10-09 10:28:14
我尝试在tkinter中连续使用FigureCanvasTkAgg自动更新图表，而不使用按钮。
以下是我到目前为止所编写的代码
import random
import tkinter as tk
import seaborn as sb
import matplotlib.pyplot as plt
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
root = tk.Tk()
def cplot():
xCord = [random.randint(0,10) for i in range(5)]
yCord = [random.randint(0,10) for i in range(5)]
#defining heatmap dimensions
fig, ax = plt.subplots()
#ploting heat map with x and y coordinates
sb.kdeplot(xCord, yCord, shade = True, cmap = "Reds")
ax.invert_yaxis()
plt.axis("off")
plt.show()
root.after(1, cplot)
return fig
fig = cplot()
canvas = FigureCanvasTkAgg(fig, master=root)
canvas.draw()
canvas.get_tk_widget().pack()
root.after(1, cplot)
root.mainloop()回答 1
Stack Overflow用户
发布于 2020-10-09 11:10:33
要在计时器上重新生成绘图图像，请在函数内重新创建画布小部件并调用该函数。
尝试以下代码：
import random
import tkinter as tk
import seaborn as sb
import matplotlib.pyplot as plt
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
root = tk.Tk()
canvas = None
def cplot():
global canvas
xCord = [random.randint(0,10) for i in range(5)]
yCord = [random.randint(0,10) for i in range(5)]
#defining heatmap dimensions
fig, ax = plt.subplots()
#ploting heat map with x and y coordinates
sb.kdeplot(xCord, yCord, shade = True, cmap = "Reds")
ax.invert_yaxis()
plt.axis("off")
if canvas: canvas.get_tk_widget().pack_forget() # remove previous image
canvas = FigureCanvasTkAgg(fig, master=root)
canvas.draw()
canvas.get_tk_widget().pack()
root.after(100, cplot)
root.after(1, cplot)
root.mainloop()页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/64273113
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