tkinter matplotlib numpy pandas line charts-优快云博客

本文介绍了一个使用Python的Tkinter库进行GUI开发的例子，其中包括如何在界面上绘制图表并实现数据更新动画效果。此外，还展示了如何组织代码以实现更清晰的模块划分。

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# 8 organize your code
import matplotlib
matplotlib.use('TkAgg')
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2TkAgg
from matplotlib.figure import Figure
import matplotlib.animation as animation
from matplotlib import style

import Tkinter as tk
import ttk

import urllib
import json

import pandas as pd
import numpy as np

LARGE_FONT = ('Vernada', 12)
style.use('ggplot')

f = Figure(figsize=(5, 5), dpi=100)
a = f.add_subplot(111)
##a.plot([1,2,3,4,5,6 ,7,8], [5,6,1,3,8,9,3,5])

def animate(i):
    pullData = open('sampleData.txt', 'r').read()
    dataList = pullData.split('\n')
    xList = []
    yList = []
    for eachLine in dataList:
        if len(eachLine) > 1:
            x, y = eachLine.split(',')
            xList.append(int(x)) 
            yList.append(int(y))

    a.clear()
    a.plot(xList, yList)

     

class SeaofBTCapp(tk.Tk):

    def __init__(self, *args, **kwargs):

        tk.Tk.__init__(self)

        tk.Tk.iconbitmap(self, default="consumer.ico")
        tk.Tk.wm_title(self, "Sea of BTC client")
        
        container = tk.Frame(self)
        container.pack(side='top', fill='both', expand=True)
        container.grid_rowconfigure(0, weight=1)
        container.grid_columnconfigure(0, weight=1)

        self.frames = {}
        for F in (StartPage, PageOne, PageTwo, PageThree):
            frame = F(container, self)

            self.frames[F] = frame

            frame.grid(row=0, column=0, sticky='nsew')

        self.show_frame(StartPage)

    def show_frame(self, cont):

        frame = self.frames[cont]
        frame.tkraise()


class StartPage(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(self, text='Start Page', font=LARGE_FONT)
        label.pack(padx=10, pady=10)

        button = ttk.Button(self, text="Visit Page 1",
                           command=lambda: controller.show_frame(PageOne))
        button.pack()
        button1 = tk.Button(self, text="Back to Page Two",
                           command=lambda: controller.show_frame(PageTwo))
        button1.pack()
        button2 = tk.Button(self, text="Graph Page",
                           command=lambda: controller.show_frame(PageThree))
        button2.pack()


class PageOne(tk.Frame):
    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(self, text="Page One", font=LARGE_FONT)
        label.pack(padx=10, pady=10)

        button = tk.Button(self, text="Back to Start Page",
                           command=lambda: controller.show_frame(StartPage))
        button.pack()

        button1 = tk.Button(self, text="Back to Page Two",
                           command=lambda: controller.show_frame(PageTwo))
        button1.pack()

class PageTwo(tk.Frame):
    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(self, text="Page Two!!!", font=LARGE_FONT)
        label.pack(padx=10, pady=10)

        button = tk.Button(self, text="Back to Start Page",
                           command=lambda: controller.show_frame(StartPage))
        button.pack()

        button1 = tk.Button(self, text="Back to Page One",
                           command=lambda: controller.show_frame(PageOne))
        button1.pack()

class PageThree(tk.Frame):
    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(self, text="Graph Page!!!", font=LARGE_FONT)
        label.pack(padx=10, pady=10)

        button = tk.Button(self, text="Back to Start Page",
                           command=lambda: controller.show_frame(StartPage))
        button.pack()

        canvas = FigureCanvasTkAgg(f, self)
        canvas.show()
        canvas.get_tk_widget().pack(side='top', fill='both', expand=True)

        toolbar = NavigationToolbar2TkAgg(canvas, self)
        toolbar.update()
        canvas._tkcanvas.pack(side='top', fill='both', expand=True)

app = SeaofBTCapp()
ani = animation.FuncAnimation(f, animate, interval=1000)
app.mainloop()

转载于:https://www.cnblogs.com/otfsenter/p/6551656.html