在tkinter中使用matplotlib

一 代码

1. import sys
2. import tkinter asTk
3. import matplotlib
4. from numpy import arange, sin, pi
5. from matplotlib.backends.backend_tkagg importFigureCanvasTkAgg,NavigationToolbar2TkAgg
6. from matplotlib.backend_bases import key_press_handler
7. from matplotlib.figure importFigure
9. matplotlib.use('TkAgg')
11. root =Tk.Tk()
12. root.title("matplotlib in TK")
13. #设置图形尺寸与质量
14. f =Figure(figsize=(5,4), dpi=100)
15. a = f.add_subplot(111)
16. t = arange(0.0,3,0.01)
17. s = sin(2*pi*t)
18. #绘制图形
19. a.plot(t, s)
22. #把绘制的图形显示到tkinter窗口上
23. canvas =FigureCanvasTkAgg(f, master=root)
24. canvas.show()
25. canvas.get_tk_widget().pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)
26. #把matplotlib绘制图形的导航工具栏显示到tkinter窗口上
27. toolbar =NavigationToolbar2TkAgg(canvas, root)
28. toolbar.update()
29. canvas._tkcanvas.pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)
31. #定义并绑定键盘事件处理函数
32. def on_key_event(event):
33. print('you pressed %s'% event.key)
34. key_press_handler(event, canvas, toolbar)
35. canvas.mpl_connect('key_press_event', on_key_event)
37. #按钮单击事件处理函数
38. def _quit():
39. #结束事件主循环，并销毁应用程序窗口
40. root.quit()
41. root.destroy()
42. button =Tk.Button(master=root, text='Quit', command=_quit)
43. button.pack(side=Tk.BOTTOM)
45. Tk.mainloop()

二 运行结果