【发布时间】:2017-07-24 19:12:51
【问题描述】:
运行下面的 python python 脚本不会显示嵌入的 matplotlib 图。但是,它也不会引发任何错误消息。运行脚本后,它应该显示一个 GUI,左侧显示 4 个按钮,右侧显示实时图形。该图从文本文件'sample_graph_data.txt' 接收输入,该文件与脚本位于同一目录中。脚本有什么问题,我该如何让它工作?
#Script begins here
from tkinter import *
from tkinter import messagebox
import matplotlib
matplotlib.use("TkAgg")
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
from matplotlib import animation
from matplotlib import style
from matplotlib.figure import Figure
PROGRAM_NAME = 'Smart Farm Controller'
style.use('ggplot')
fig = Figure(figsize=(5, 30), dpi=100)
a = fig.add_subplot(111)
class Controller:
def __init__(self, root):
self.root = root
self.root.title(PROGRAM_NAME)
self.root.protocol('WM_DELETE_WINDOW', self.exit_app)
self.init_gui()
def create_right_graphs(self):
right_frame = Frame(self.root)
right_frame.grid(row=2, column=6, sticky=N+E+W+S,
padx=2, pady=2)
anim = animation.FuncAnimation(fig, self.animate_graph(right_frame),
interval=1000)
def create_left_switches(self):
left_frame = Frame(self.root)
left_frame.grid(row=2, column=1, columnspan=6, sticky=N+E+W+S,
padx=2, pady=2)
led_button = Button(left_frame, text='LED') #command=self.on_led_button_clicked)
led_button.config(height=2, width=30)
led_button.grid(row=2, column=0, padx=4, pady=8)
apump_button = Button(left_frame, text='Air Pump') #command=self.on_apump_button_clicked)
apump_button.config(height=2, width=30)
apump_button.grid(row=3, column=0, padx=4, pady=8)
wpump_res_button = Button(left_frame, text='Reservoir Water Pump')
#command=self.on_wpump_res_button_clicked)
wpump_res_button.config(height=2, width=30)
wpump_res_button.grid(row=4, column=0, padx=4, pady=8)
wpump_grow_button = Button(left_frame, text='Grow Bucket Water Pump')
#command=self.on_wpump_grow_button_clicked)
wpump_grow_button.config(height=2, width=30)
wpump_grow_button.grid(row=5, column=0, padx=4, pady=8)
def animate_graph(self, right_frame):
pullData = open("sample_graph_data.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(x))
a.clear()
a.plot(xList, yList)
canvas = FigureCanvasTkAgg(fig, right_frame)
canvas.show()
canvas.get_tk_widget().pack(side=RIGHT, fill=BOTH, expand=True)
def init_gui(self):
self.create_right_graphs()
self.create_left_switches()
def exit_app(self):
if messagebox.askokcancel("Quit", "Really quit?"):
self.root.destroy()
if __name__ == '__main__':
root = Tk()
Controller(root)
root.mainloop()
【问题讨论】:
-
尝试创建一个较小的 Tkinter 应用程序的minimal reproducible example,看看你是否可以运行它
-
我看到了几个应该引发错误的问题。尝试从终端运行它,以便查看错误。如果您仍然需要帮助,请提供我们可以尝试的完整示例(包括测试数据)。对于多个文件,最好创建一个 github 存储库并在此处发布链接。
标签: python matplotlib tkinter tkinter-canvas