如何更改 Tkinter 动画人物间隔

Question

所以我有一个 animate() 函数，它在我的 tkinter 应用程序结束时每秒被调用一次，看起来像这样 ani = animation.FuncAnimation(fig, animate, interval=1000)。

函数 animate() 被调用，下面列出了该函数以及图形和子图。

我的问题是如何让按钮（button1000）改变kline_data中的interval？我正在尝试将初始间隔设置为“1m”或1 分钟，然后单击一个按钮并让它为“5m”、“30m”或“1h”间隔设置动画。

kline_data = client.get_klines(symbol='ETHUSDT', interval='1m', limit=30)

以下是代码，但由于这是一个较大项目的一部分，因此已删除了部分代码。 任何帮助将不胜感激！

from binance.client import Client

client = Client(api_key, api_secret)


graph_window = tk.Tk()

fig = Figure(figsize=(7, 5), tight_layout=True)
a = fig.add_subplot(111)

def animate(i):
    kline_data = client.get_klines(symbol='ETHUSDT', interval='1m', limit=30)
    df = pd.DataFrame(kline_data).drop([7, 9, 10, 11], axis=1)
    df.columns = ['Open Time', 'Open', 'High', 'Low', 'Close', 'Volume', 'Close Time', 'Num of Trades']
    df[['Open', 'High', 'Low', 'Close', 'Volume']] = df[['Open', 'High', 'Low', 'Close', 'Volume']].astype(
        float)
    df['Open Time'] = pd.to_datetime(df['Open Time'], unit='ms')
    df['Close Time'] = pd.to_datetime(df['Close Time'], unit='ms')
    df['EMA7'] = df['Close'].ewm(span=7, adjust=False).mean()
    df['SMA7'] = df['Close'].rolling(7).mean()
    a.clear()
    a.yaxis.tick_right()
    a.margins(x=0.03)
    a.set_title('Last Price of ETHUSDT: ' + str(df['Close'][29]))
    df.plot(x='Close Time', y='Close', ax=a)
    df.plot(x='Close Time', y='EMA7', ax=a)
    df.plot(x='Close Time', y='SMA7', ax=a)

canvas = FigureCanvasTkAgg(fig, graph_container)
canvas.draw()
canvas.get_tk_widget().pack()

labelframe = tk.LabelFrame(controls, borderwidth=5, text='Graph Controls', labelanchor='n', pady=5)
button0000=ttk.Label(labelframe, text="Time:")
button1000=tk.Button(labelframe, text="1m")

ani = animation.FuncAnimation(fig, animate, interval=1000)
graph_window.mainloop()

Answer 1

凭借@jasonharper 的洞察力，能够通过将全局变量设置为“1m”来解决此问题。 然后我创建了一个函数来改变按下按钮时的间隔。

这是工作代码！

编辑：大部分内容都被遗漏了，这样做可能会在未来让用户感到困惑。这是完整的完整代码供参考。请注意，该项目是不久前完成的，因此依赖项可能已过时。 https://github.com/prestonkelly/Mastermind/blob/master/app.py

from binance.client import Client

client = Client(api_key, api_secret)

import tkinter as tk
from tkinter import ttk
from matplotlib.figure import Figure
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
import matplotlib.animation as animation
import pandas as pd

graph_window = tk.Tk()

fig = Figure(figsize=(7, 5), tight_layout=True)
a = fig.add_subplot(111)


interval = '1m'

def button_changing(id):
    global interval
    if id == 1:
        interval = '30m'


def animate(i):
    kline_data = client.get_klines(symbol='ETHUSDT', interval=interval, limit=30)
    df = pd.DataFrame(kline_data).drop([7, 9, 10, 11], axis=1)
    df.columns = ['Open Time', 'Open', 'High', 'Low', 'Close', 'Volume', 'Close Time', 'Num of Trades']
    df[['Open', 'High', 'Low', 'Close', 'Volume']] = df[['Open', 'High', 'Low', 'Close', 'Volume']].astype(
        float)
    df['Open Time'] = pd.to_datetime(df['Open Time'], unit='ms')
    df['Close Time'] = pd.to_datetime(df['Close Time'], unit='ms')
    date_values = df['Close Time']
    close_values = df['Close']
    df['EMA7'] = df['Close'].ewm(span=7, adjust=False).mean()
    df['SMA7'] = df['Close'].rolling(7).mean()
    a.clear()
    a.yaxis.tick_right()
    a.margins(x=0.03)
    a.set_title('Last Price of ETHUSDT: ' + str(df['Close'][29]))
    df.plot(x='Close Time', y='Close', ax=a)
    df.plot(x='Close Time', y='EMA7', ax=a)
    df.plot(x='Close Time', y='SMA7', ax=a)



canvas = FigureCanvasTkAgg(fig, graph_window)
canvas.draw()
canvas.get_tk_widget().pack()

labelframe = tk.LabelFrame(graph_window, borderwidth=5, text='Graph Controls', labelanchor='n', pady=5)
button0000=ttk.Label(labelframe, text="Time:")
button1000=tk.Button(labelframe, text="1m", command=lambda: button_changing(1))

ani = animation.FuncAnimation(fig, animate, interval=1000)
graph_window.mainloop()