【发布时间】:2019-03-27 17:22:29
【问题描述】:
我一直在尝试为按钮执行命令来绘制 matplotlib 图形。我已经结束了这个post。但这并没有太大帮助,因为该示例将所有内容都归为一类。我正在努力将来自不同类的对象链接在一起。
要执行的命令是针对class EntryButton 中的button2。情节本身是在class CalcPlot 中制作的。最后,我希望情节显示为class PlotWindow 的一个实例。
我尝试设置command=PlotWindow.plot,但这不起作用。另外我不确定该方法应该在哪个类中。继承可以工作,但我不知道如何设置它,因为这些类已经从Frameclass 继承。
from tkinter import *
import matplotlib
from matplotlib.figure import Figure
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
matplotlib.use('TkAgg')
class MainWindow(Frame):
def __init__(self, parent):
Frame.__init__(self, parent)
self.parent = parent
self.config(bg='blue')
self.pack(side=TOP, fill=BOTH, expand=True)
self.grid_rowconfigure(0, weight=1)
self.grid_columnconfigure(0, weight=1)
#frames
entry_frame = EntryButton(self)
plot_frame = PlotWindow(self)
x1 = 1
x2 = 2
y1 = 1
y2 = 2
class EntryButton(Frame):
def __init__(self, parent):
Frame.__init__(self, parent)
self.config(width=600, height=400, bg='#ff6600')
self.place(x=0, y=0)
self.entry1 = Entry(self, width=10)
self.entry1.insert(0, '0')
self.entry1.place(x=110, y=40, anchor=W)
self.entry2 = Entry(self, width=10)
self.entry2.insert(0, '0')
self.entry2.place(x=180, y=40, anchor=W)
self.entry3 = Entry(self, width=10)
self.entry3.insert(0, '0')
self.entry3.place(x=110, y=65, anchor=W)
self.entry4 = Entry(self, width=10)
self.entry4.insert(0, '0')
self.entry4.place(x=180, y=65, anchor=W)
label1 = Label(self, text='x coord.', font='arial 10 bold', bg='#ff6600')
label1.place(x=50, y=40, anchor=W)
label2 = Label(self, text='y coord.', font='arial 10 bold', bg='#ff6600')
label2.place(x=50, y=65, anchor=W)
button1 = Button(self, text='enter', width=8, command=self.set_values)
button1.place(x=180, y=100, anchor=W)
button2 = Button(self, text='plot', width=8, command=PlotWindow.plot)
button2.place(x=180, y=140, anchor=W)
def set_values(self):
global x1, x2, y1, y2
x1 = int(self.entry1.get())
x2 = int(self.entry2.get())
y1 = int(self.entry3.get())
y2 = int(self.entry4.get())
def plot(self): #possibly the function should be here
pass
class CalcClass:
def __init__(self, parent):
fig = Figure(figsize=(6, 4))
axes = fig.add_subplot(1, 1, 1)
global x1, x2, y1, y2
axes.plot([x1, x2], [y1, y2])
canvas = FigureCanvasTkAgg(fig, parent)
canvas.draw()
canvas.get_tk_widget().pack(side=TOP, fill=BOTH, expand=True)
class PlotWindow(Frame):
def __init__(self, parent):
Frame.__init__(self, parent)
self.config(width=600, height=400, bg='yellow')
self.place(x=600, y=0)
def plot(self):
plot = CalcClass(self)
if __name__ == '__main__':
root = Tk()
root.title('Frost Lite')
app = MainWindow(root)
root.geometry('1200x400+2000+800')
root.resizable(False, False)
root.mainloop()
【问题讨论】: