如何将图例Matplotlib TKinter

问题内容

我正在尝试在图形中创建图例，但当我使用 legend() 时它不起作用。我不知道还能有什么。我看到了很多关于它的信息，我也在做同样的事情，但它一直不起作用。你能帮我一下吗？

在我的代码下面：

import tkinter as tk
import matplotlib.pyplot as plt
from matplotlib.figure import Figure
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
from matplotlib import animation
import random

# Create the Tkinter window
root = tk.Tk()
root.geometry('400x100')


fig2, avail = plt.subplots(figsize=(10,7), dpi=60, facecolor= '#e9eef0',)
avail.tick_params(axis='y', labelsize=0)#Formatar a fonte yLabel
avail.set_ylabel('FOLLOWING THE PRODUCTION', fontsize=20)
avail.set_xlabel('TIME (minute)', fontsize=20)
avail.legend(['ON','PLANNED','STOP'])
   
    
stop = [30]
on = [40]
planned = [70]  
x = 1
w = 0.2


avail.barh(x + w, on ,w, color='#22e3e3', edgecolor = 'black', linewidth = 2)
avail.barh(x, planned , w ,color='#05337d', edgecolor = 'black', linewidth = 2)
avail.barh(x - w, stop, w, color = '#c95924', edgecolor = 'black', linewidth = 2)


#criando figura para plotar dentro do TKinter
canvas_avail = FigureCanvasTkAgg(fig2, master=root)
canvas_avail.get_tk_widget().place(x= 280, y= 150)

root.mainloop()

正确答案

进行一些更改并指出错误后，这是另一个代码，这次它可以工作并显示图例：

import tkinter as tk
import matplotlib.pyplot as plt
from matplotlib.figure import Figure
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg

root = tk.Tk()
root.geometry('600x450')

fig2, avail = plt.subplots(figsize=(10,7), dpi=60, facecolor='#e9eef0',)
avail.tick_params(axis='y', labelsize=0)
avail.set_ylabel('FOLLOWING THE PRODUCTION', fontsize=20)
avail.set_xlabel('TIME (minute)', fontsize=20)

stop = [30]
on = [40]
planned = [70]
x = 1
w = 0.2

avail.barh(x + w, on, w, color='#22e3e3', edgecolor='black', linewidth=2)
avail.barh(x, planned, w, color='#05337d', edgecolor='black', linewidth=2)
avail.barh(x - w, stop, w, color='#c95924', edgecolor='black', linewidth=2)

# Legend added after creating bars
avail.legend(['ON', 'PLANNED', 'STOP'])

#criando figura para plotar dentro do TKinter
canvas_avail = FigureCanvasTkAgg(fig2, master=root)
canvas_avail.get_tk_widget().place(x=10, y=0)

root.mainloop()

证明：

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