plot-emded

import tkinter

from matplotlib.backends.backend_tkagg import (
    FigureCanvasTkAgg, NavigationToolbar2Tk)
# Implement the default Matplotlib key bindings.
from matplotlib.backend_bases import key_press_handler
from matplotlib.figure import Figure

import matplotlib.pyplot as plt

import numpy as np
import random

def lcg(modulus, a, c, seed):
    """Linear congruential generator"""
    while True:
        seed = (a * seed + c) % modulus
        yield seed / modulus

lcg_gen = lcg(2**32, 1664525, 1013904223, 0)


root = tkinter.Tk()
root.wm_title("Embedding in Tk")

# fig = Figure(figsize=(5, 4), dpi=100)
# t = np.arange(0, 3, .01)
# fig.add_subplot(111).plot(t, 2 * np.sin(2 * np.pi * t))
fig, ax = plt.subplots(2,2,sharey=True)
# plt.subplots_adjust(bottom=0.1)
# plt.suptitle('ГПСЧ', size=18)
fig.canvas.set_window_title('Графики ГПСЧ')



n = 1000
ax[0,0].hist([random.random() for i in range(n)],20)
ax[0,1].hist([next(lcg_gen) for i in range(n)],20)

ax[0,0].set_title('random()')
ax[0,1].title.set_text('Линейно конгруэнтный')

canvas = FigureCanvasTkAgg(fig, master=root)  # A tk.DrawingArea.
# canvas.draw()
canvas.get_tk_widget().pack(side=tkinter.TOP, fill=tkinter.BOTH, expand=1)

# toolbar = NavigationToolbar2Tk(canvas, root)
# toolbar.update()
# canvas.get_tk_widget().pack(side=tkinter.TOP, fill=tkinter.BOTH, expand=1)


def on_key_press(event):
    print("you pressed {}".format(event.key))
    key_press_handler(event, canvas, toolbar)


canvas.mpl_connect("key_press_event", on_key_press)

message = tkinter.StringVar()


def _input(event = None):

    try:
        n = int(message.get())
    except ValueError:
        return

    if n < 0:
        return

    ax[0,0].clear()
    ax[0,1].clear()
    ax[0,0].set_title('random()')
    ax[0,1].title.set_text('Линейно конгруэнтный')
    ax[0,0].hist([random.random() for i in range(n)],20)
    ax[0,1].hist([next(lcg_gen) for i in range(n)],20)
    # plt.draw()
    canvas.draw()

    # root.quit()     # stops mainloop
    # root.destroy()  # this is necessary on Windows to prevent
                    # Fatal Python Error: PyEval_RestoreThread: NULL tstate


f_input = tkinter.Frame()

label = tkinter.Label(f_input,text='Длина')
text = tkinter.Entry(f_input,textvariable=message)
button = tkinter.Button(f_input,text="OK", command=_input)

button.config(width=4)
text.insert(tkinter.END, str(n))
text.bind('<Return>', _input)


f_input.pack(side=tkinter.BOTTOM, pady=5)

label.pack(side=tkinter.LEFT, padx=10, pady=5)
text.pack(side=tkinter.LEFT, padx=1, pady=5)
button.pack(side=tkinter.LEFT, padx=10, pady=5)

text.focus_set()
tkinter.mainloop()
# If you put root.destroy() here, it will cause an error if the window is
# closed with the window manager.