嵌入Tk

  1. import tkinter
  3. from matplotlib.backends.backend_tkagg import (
  4.     FigureCanvasTkAgg, NavigationToolbar2Tk)
  5. # Implement the default Matplotlib key bindings.
  6. from matplotlib.backend_bases import key_press_handler
  7. from matplotlib.figure import Figure
  9. import numpy as np
  12. root = tkinter.Tk()
  13. root.wm_title("Embedding in Tk")
  15. fig = Figure(figsize=(5, 4), dpi=100)
  16. t = np.arange(0, 3, .01)
  17. fig.add_subplot(111).plot(t, 2 * np.sin(2 * np.pi * t))
  19. canvas = FigureCanvasTkAgg(fig, master=root)  # A tk.DrawingArea.
  20. canvas.draw()
  21. canvas.get_tk_widget().pack(side=tkinter.TOP, fill=tkinter.BOTH, expand=1)
  23. toolbar = NavigationToolbar2Tk(canvas, root)
  24. toolbar.update()
  25. canvas.get_tk_widget().pack(side=tkinter.TOP, fill=tkinter.BOTH, expand=1)
  28. def on_key_press(event):
  29.     print("you pressed {}".format(event.key))
  30.     key_press_handler(event, canvas, toolbar)
  33. canvas.mpl_connect("key_press_event", on_key_press)
  36. def _quit():
  37.     root.quit()     # stops mainloop
  38.     root.destroy()  # this is necessary on Windows to prevent
  39.                     # Fatal Python Error: PyEval_RestoreThread: NULL tstate
  42. button = tkinter.Button(master=root, text="Quit", command=_quit)
  43. button.pack(side=tkinter.BOTTOM)
  45. tkinter.mainloop()
  46. # If you put root.destroy() here, it will cause an error if the window is
  47. # closed with the window manager.

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